There are a large number of companies engaged in the production of industrial boilers on the domestic market. Particularly popular today are industrial-type units operating on pellets. In this article, we will tell you about three Russian manufacturers that produce such equipment: Pyrolysis Master, Faci, Roteks.

• Pyrolysis Master
• Roteks

Characteristics of industrial pellet boilers

Let us present the characteristics of industrial pellet boilers Pyrolysis Master PELLET PRO 100-1000 and PELLET 100-320, FACI 105-850 and ROTEKS 100-300 in the table.

Pyrolysis Master

Pyrolysis Master can be characterized by two key words - high manufacturability and efficiency. This is due to the fact that the manufacturer independently develops the design of the equipment and is actively cooperating with European companies that produce boiler equipment under the licensed production scheme.

Industrial pellet boilers Pyrolysis Master are presented in the PELLET PRO 100-1000 kW and PELLET 100-320 kW series. It is efficient equipment with high performance. Heats the room as soon as possible and retains heat for a long time.

Heating devices of the PELLET PRO 100-1000 kW series are manufactured in accordance with the requirements of GOST-30735-2001. The working pressure in the boiler jacket is 6 atm. The temperature regime of the heating agent supply is up to 115 ° C.

In the event of a temporary power outage, it is possible to heat the boiler with wood or fuel briquettes.

The boilers can be operated on most types of solid fuel in the form of a pellet fraction. The technical and economic parameters of the boiler declared by the manufacturer are achieved when using fuel with a specific heating value of at least 16.4 MJ / kg. When using fuel with a different calorific value, or with a moisture content of more than 20%, the technical and technical and economic indicators of the boiler operation may differ both upward and downward.

The boiler is equipped with an automatic system for maintaining the set temperature of the coolant at the outlet and an automatic ignition system.

A weather-dependent regulation system has been implemented, it is possible to control it using a built-in programmable thermostat and the ability to monitor and control the heating process remotely using additional modules.

The basic volume of the pellet hopper is from 1000 liters and can be increased at the request of the buyer.

Additionally, the boiler device allows installing automatic ash removal, automatic pneumatic cleaning of the heat exchanger, controllers for remote control of the boiler using a smartphone or computer via the Internet and via SMS, as well as controllers for automating the operation of the heating system hydraulics.

The characteristic features of the boilers are a twin-screw feed, tray burner. All electrical assemblies and automation are made in accordance with high quality European standards.

Let's consider the main technical characteristics of both series.

The units of the PELLET PRO 100-1000 kW series are capable of effectively heating a room from 1000 to 10000 m².

Pellet boiler Pyrolysis Master PELLET PRO

Equipment and functionality:

• boiler combustion chamber heat exchanger for industrial facilities with a working pressure of 0.6 MPa and a supply temperature of up to 115 ° C;
• a practical tray-type retor burner with automatic cleaning for pellets with different ash content;
• equipment operation is fully automated;
• there is a weather-dependent regulation and a weekly schedule for the operation of the heater;
• a burner made of cast iron with a twin-screw fuel supply system and an auto-ignition ceramic shade;
• turbulators;
• a bunker for pellets 1-2 m³ (custom volume can be any);
• control of heating circuits and three-way valves;
• differential boiler power control (PID), which ensures the most smooth and economical operation in all ranges of heat consumption;
• there are tools for servicing the combustion chamber;
• burner auto cleaning ( additional option for pellets with increased ash content - sunflower husk, bark, peat, croaker);
• SMS control of the heater (additional option);
• boiler control via PC, smartphone (additional option).

Boilers of the PELLET 100-320 kW series are designed to supply heat to premises with an area of \u200b\u200b1000-32000 m2.

Industrial pellet boiler Pyrolysis Master PELLET

The functionality and characteristics of pellet boilers are as follows:

• heat exchanger for the most economical consumption of pellets;
• high productivity - efficiency reaches 90% or more;
• the retort burner is unpretentious to the quality of the pellets, the boiler can be fired even with the cheapest pellets;
• high-quality electronics of European production guarantees the uninterrupted stable operation of the boiler;
• the burner is made of cast iron, there is a twin-screw fuel supply system and ceramic auto-ignition;
• boiler automation with sensors;
• pellet hopper (can have any volume on request);
• burner auto-cleaning (additional option for high-ash pellets: peat, bark, sunflower husk);
• ash removal system (optional);
• SMS boiler control (additional option);
• boiler control via computer, smartphone (additional option).

FACI

Pellet boilers produced by this manufacturer belong to the category of economical equipment, because pellets of any quality can be used as fuel (wood, buckwheat, peanut, almond, pine nut shells, coal, firewood, etc.).

Pellet boiler FACI

FACI boilers are an environmentally friendly form of heating, they can be installed both in closed and open systems heating. You do not have to constantly monitor the operation of the equipment, they are very easy to clean.

In the package heating appliances includes a large hopper for loading fuel, and on the front side of the boiler there are doors for cleaning. All Faci boilers, in particular industrial ones, are safe to maintain and operate. This is due to their design and built-in automation. Also, the units have overheating protection.

All boilers have a twin-screw fuel supply system, which means that the flame will not get out of the boiler into the bunker in any way. If we compare traditional solid fuel units with FACI, the latter produce the most economical heat.

Their performance is high, the efficiency reaches 92%, which indicates that the fuel is burned to the end.

Another important advantage is that the pellet boilers manufactured by FACI are an environmentally friendly source of thermal energy. The design of the devices is such that the fuel burns out completely, and in terms of flue gases and emissions into the atmosphere, the units correspond to class A, the best in Europe.

Industrial boilers include heating devices with a capacity of 105 to 911 kW. Designed for heating and providing hot water supply in rooms ranging from 1050 to 10000 m2. They are made of high quality durable steel. The design includes a three-row heat exchanger for high efficiency and energy savings. The heat exchanger is made of seamless steel pipes, which are submerged in water, they are located in the upper part of the combustion chamber equipped with a descending screw. This speaks to the natural protection of the system from reentry. The devices can operate on any kind of crushed fuel.

Specifications and functionality:

• automatic fuel supply mode (main) - pellets, crushed biomass;
• manual mode of fuel supply (reserve) - firewood, briquettes;
• three-row heat exchanger;
• twin-screw automatic fuel supply system (the risk of fuel ignition in the bunker is reduced to zero);
• the burner is made of cast iron;
• a fuel bunker ensuring continuous operation of the device;
• volumetric bowl for combustion;
• digital control panel;
• air is pre-mixed, which contributes to an increase in efficiency;
• automatic system ash removal (additional option);
• boiler auto-ignition (additional option);
• automatic heat exchanger cleaning system.

Roteks

Pellet boilers Roteks are manufactured by ChZSK, a Russian company that manufactures pellet boilers for heating, modular boilers, units and components for boiler equipment. The equipment is considered efficient and is in great demand among domestic users.

Boiler for fuel pellets Rotex

As a distinctive feature of this equipment, one can single out the presence of a retor burner, which is absolutely unpretentious to the quality of pellets, the three-way heat exchanger is vertical, which allows keeping the surface of the heat exchanger clean.

In this regard, the Rotex pellet boilers are characterized by high performance, the efficiency reaches 93%. If necessary, in specialized stores you can always find spare parts that are much cheaper than imported ones.

Industrial pellet boilers Roteks are presented in a series from 100 to 300 kW in the "LUX" and "ECONOM" configurations.

The technical characteristics of heaters of both series with the same output do not differ in any way.

Boilers belonging to "LUX" and "ECONOM" operate on solid granular fuel, meet the requirements of GOST 20548-87 and GOST 30735-2001, are fully automated. The advantage of the "LUX" series is the option of remote on / off switching, as well as SMS-notifications about the boiler operation.

It can be concluded that all three manufacturers are not in vain occupying leading positions in the market, because produce quality equipment. When choosing industrial pellet boilers, it is necessary to analyze all the options well and, based on personal requirements, choose the most the best option... If you choose a boiler from the three proposed options, then, based on practicality and economy, the Pyrolysis Master equipment looks the most attractive. But the final choice is yours.

teplofan.ru

How industrial pellet boilers work

Some types of industry: oil refining, woodworking furniture, etc. need a lot of steam. For this purpose, industrial pellet boilers are ideal. Heat generators generate enough heat energy to warm up the working rooms and provide the necessary volume of steam and hot water.

Scope of pellet steam boilers

• Refining Industry - Refined products are heated with steam to improve fluidity and facilitate pipeline transportation.
• Woodworking industry - with the help of steam, optimal conditions are created for drying especially valuable wood species. Decreases the percentage of rejects allowed when drying boards and timber.
• Furniture industry - in the manufacture of certain types of boards (fiberboard, etc.) used in furniture production, steam is required.

The industrial steam boiler for pellets is versatile and can operate on any wood waste, and even wood dust, which makes its operation especially beneficial in the woodworking and furniture industries.

The device and principle of operation of a steam pellet boiler

• The fuel is burned at a temperature of 1800 ° C.
• The heated flue gases are fed into the convection shaft, where they are pre-cooled to 800 ° C, and after passing through a special system of chimney pipes, to 100 ° C.
• There are two containers with water inside the body. The first serves to supply the coolant to the heating system, the second to produce steam.

How pellets are burned

1. The pellets are fed to the burner.
2. With electric ignition, the pellets are ignited.
3. In order to increase the combustion rate and temperature, air is forced into the burner. Thanks to oxygen, the flame has the necessary structure to maintain a stable temperature in the furnace.

An important feature of steam units is the combustion of fuel at extremely high temperatures. To avoid overheating, it is necessary to evenly distribute air flows and heat inside the firebox. For this, a specially designed grate is used.

The grate allows the use of other fuels (sawdust, wood chips and wood dust) during operation. To prevent warping of the metal, water cooling of the grate is provided.

Continuous pellet feeding system

Possibility of using chips, sawdust, briquettes

• Briquettes.
• Wood chips.
• Woodworking waste.

Which pellets are best for steam boilers

• Pellet consumption - it would seem that purchasing cheaper fuel pellets helps to save money due to less money required for their purchase. In fact, inexpensive pellets have a lower heating value, which significantly reduces heat transfer and, accordingly, leads to an increase in fuel consumption.
• Equipment failure - gray pellets, when burned, leave a larger amount of ash that settles directly under the burner or at the outlet of the auger transmission. The accumulated carbon deposits lead to failure of bearings, jamming of the auger transmission and its burnout.

The weak point of industrial pellet boilers for generating steam is the susceptibility of the screw transmission system to wear, due to the use of low-quality pellets. Based on the fact that white fuel pellets have the best calorific value, they do not significantly affect the performance of the system, it is best to use them during operation.

The consumption of pellets during the heating of a steam boiler per month can be easily calculated based on the heated area of \u200b\u200bthe room. Approximate costs for each m² will be about 6.5 kg. For more information, see the technical documentation for the units.

Main manufacturers of pellet boilers for industry

• Foreign pellet boilers for heating industrial premises - there are several manufacturing companies: FAKO, LIBERATOR POWER, etc. Recently, modular boiler rooms made in China have become widespread. The products of the manufacturer Heguo are in demand.
• Domestic manufacturers of pellet steam boilers are less represented. Most manufacturers are targeting home use systems. Among a dozen domestic factories, one can single out the SLON company, which produces simple but reliable steam boilers.

Advantages of steam pellet equipment

• Versatility - in addition to the main fuel - pellets, the boilers operate effectively on almost any solid fuel: wood chips, sawdust, wood dust. The use of heating systems of this type in the furniture and woodworking industries is especially beneficial, since a large amount of waste remains in the production process, which can be used to heat rooms and generate steam.
• Profitability - due to the special design of the boiler, which uses the heat released by the fuel during combustion and the energy of the exhaust gases. The consumption of pellets is reduced by about a third, while the heat transfer remains at the same level.
• Simple operation of an industrial pellet boiler. After connection, the heating and vaporization system works in autonomous mode. The owners of the module are required to monitor the level of pellets in the storage, as well as to clean the combustion chamber, burner, grate and auger from accumulated soot. Some models have a self-cleaning system. In such boilers, maintenance is required no more than once every 2-3 weeks.
• Functionality - steam boilers are specific equipment, mainly used to generate heat and steam at the same time. Some models are additionally equipped with a steam generator that allows you to get very hot dry steam.

Disadvantages of industrial pellet boilers

• Water supply - for the operation of the boiler, it is necessary to supply water of a strictly defined temperature that has been purified. The installation of a primary water treatment system will be required.
• Restrictions during operation. If during the production process, steam is not needed, it is better to refuse to purchase this type of equipment. Alternatively, you can create an additional heating system that runs on steam.

avtonomnoeteplo.ru

Pellet industrial boiler for heating industrial premises

It is logical to assume that the choice of a pellet boiler for a private house and for a large industrial area is two opposite sides. In this article we will consider the main points of the choice and the specifics of the functioning of a pellet boiler for a production facility. Also, you will have to take into account the future labor and financial costs of the boiler room equipment and work on the operation of the Lavoro pellet unit.

Why is a pellet boiler so good in production?

This is an excellent saving of gas, which in our time will be too expensive for full heating of a large room.

Durability and high strength of the unit. Industrial pellet boilers in general are characterized by high wear resistance, since economy and versatility are important for the owner.

The pellet unit is very unpretentious and omnivorous: any organic fuel in the form of pellets and briquettes, including even sunflower husks, will support it.

Why are pellet boilers rapidly gaining popularity among industrial owners?

As we mentioned above, the first and main reason is the high cost of natural gas, which is successfully compensated by the cheapness and availability of wood fuel.

Also pellet mechanisms "Lavoro Eco" in production have a truly enormous power, reliability and efficiency!

An autonomous pellet boiler system, to which an automatic fuel supply is also connected, is the best engineering solution for heating a large room. In fact, it is a complex and well-thought-out complex of mechanisms and devices, which specializes the hands of the owner and allows significant savings, providing maximum power and a high percentage of efficiency.

Another advantage of purchasing a pellet boiler "Lavoro" is the availability of wood fuel. For example, if you are going to buy heating system for your woodworking plant, then you will not have big problems solving this issue. Plus, you'll save a lot of money. Almost all enterprises of this type (also pulp and paper) use waste from their own production as fuel. What is not a convenient and profitable option?

Installation of one or more pellet units in production solves two problems at once: heat supply and hot water supply.

How to choose good quality pellets for heating industrial premises?

The pellet packaging should not contain too much dust.

Granules must not have swollen parts and strong cracks.

Pellets should not have grey colour... This shows that they are stale. The normal color for pellets ranges from yellow to brown.

Can you even determine the quality of granules by smell? It should be pleasant, woody, slightly sweet. There should not be any admixtures of chemical odors in them.

xn - 80aezoal.xn - p1ai

Industrial pellet boilers

SENTENCE

for the supply of boiler equipment based on a KPU pellet boiler operating on biofuel (wood or peat pellets) or wood chips, relative humidity up to 18%.

Currently, NKZ Pro-Energy LLC offers a series of pellet boilers with capacities: 100, 200, 300, 500, 750, 1000 and 1500 kW. They are intended for heating and hot water supply of individual houses, cottages and small farms with a total volume of premises up to 51,800 m3. In automatic mode, both fuel pellets and wood waste (sawdust, wood chips) with a relative humidity of up to 18% are used as fuel. The basic set includes a boiler, a bunker, a separate automatic control panel (not built-in).

1. Description of the scope of delivery.

Pellet boiler KPU brand has a design that combines a furnace and a heat exchanger, consists of the following main units:

1.1. The boiler furnace chamber is located inside a cylindrical heat exchanger. In the lower part of the furnace there is a burner with a pushing grate, into which fuel is fed by a screw conveyor. In the process of operation, the grates move reciprocally, pushing the fuel. Fuel is fed to the screw conveyor from the hopper. The burner is equipped with a branch pipe for connecting an emergency fire extinguishing system, which supplies water to the auger when the temperature in it exceeds the set value. The furnace is equipped with a furnace door through which the burner is serviced. The furnace door has a viewing window for observing the combustion process. The underglass space is periodically cleaned. The frequency of cleaning depends on the type of fuel and is determined during operation. A blower fan supplies air to the burner. Air volume regulation is provided from the control panel during commissioning works and depends on the type of fuel and the required power of the boiler. The heat exchanger with fire tubes is located vertically around the combustion chamber. The heat carrier (water) is pumped into the heat exchanger from below, the flue gases, descending, wash the inner walls of the pipes, where heat exchange takes place. At the outlet of the heat exchanger, a safety group is installed in its upper part, which includes a safety valve, a pressure gauge and a ball valve. The safety valve is used to release excess steam (water) from the boiler when the pressure in it rises above the calculated one. The pressure gauge is used to monitor the pressure in the heat exchanger. The ball valve is designed to bleed the steam-air mixture from the heat exchanger. The heat exchanger is equipped with a cleaning hatch located on top, which provides access to the heat exchange surfaces of the smoke tubes when cleaning the heat exchanger from deposits (the recommended service area above the boiler is 1.5 meters). The heat exchanger has thermal insulation, which reduces the loss of heat energy to the environment. A cleaning hatch serves to remove ash from under the heat exchanger.

1.2. The flue gas cleaning system complete with a smoke exhauster is designed for dry cleaning of gases emitted during certain technological processes, including when burning wood fuels and peat. The cyclone consists of a housing with a guide screw, a storage hopper on a frame structure with gas ducts and a smoke exhauster. In the lower part of the cyclone, there is a receiving container for the accumulator for collecting ash deposits, into which particles of solid waste are drawn by centrifugal forces. Each cyclone is supplied for a boiler of a certain capacity.

1.3. For automatic fuel supply to the combustion block, an operational bunker with a screw conveyor is used. The operational bunker is a cone-shaped metal container with a loading volume of 0.6-2.2 m3. The hopper has a hatch for maintenance and a technological opening for supplying fuel to the screw conveyor, which is closed by a gate when the boiler is operating in manual mode. To adjust the amount of supplied fuel in order to avoid overloading the bunker, volume sensors are used, with the help of which the operation of the entire fuel supply system is monitored from the control panel of the automatic system. To drive the screw conveyor, geared motors made in Italy are used, which have a good service factor and do not require frequent maintenance. The dosage of the amount of fuel is automatically regulated using a frequency converter from the control panel of the boiler complex. The mechanized fuel supply device is equipped with a humidification system and a fire protection system.

1.4. The automatic control system of the ACS based on the programmable controller MITSUBISHI and frequency converters allows automatic ignition of the boiler, regulation of the combustion process and fuel supply in automatic mode. Measurement and regulation takes place according to the main three parameters: the temperature of the direct and return supply of the heat carrier, the temperature of the flue gases. Monitoring of emergency temperatures, issuing control commands, light and sound signaling of emergency situations, the ability to archive data. With an additional request, delivery of a heat meter is possible.

All required sensors are included in the package.

1.5. A chimney with a height of 7.3 - 16 meters is used to divert flue gases into higher layers of the atmosphere. The pipe consists of a thick-walled support section and intermediate sections, which are connected to each other through angle profile flanges. At the base of the pipe there is a cleaning hatch and a condensate drain. The pipe is secured with three braces, depending on the location. When located near a residential area, the height of the pipe can be increased up to 21 meters.

For heating a private house without centralized gas supply, they mainly use affordable and inexpensive solid fuel. However, traditional types of heating devices operating on this type of fuel have a rather low efficiency and laborious operation. Recently appeared long-burning boilers using the pyrolysis method are more efficient, economical in fuel consumption and easy to maintain.

Criterias of choice

Home heating pyrolysis boilers are designed to operate on different types fuels: wood, coal, peat, sawdust, pallets. Wood-burning devices have the highest productivity due to complete combustion of fuel in pyrolysis mode. Therefore, if it is possible to prepare firewood inexpensively and in sufficient quantities for the entire heating season, then you can buy and install just such a boiler at home.

Otherwise, it is better to purchase a universal device that can operate on any solid fuel. Structurally, they are designed so that they can burn up to 80% of fuel resources in the pyrolysis mode, and the remaining 20% \u200b\u200bin the mode of a simple solid fuel unit.

You should also pay attention to:

unit power. When calculating this indicator, the area of \u200b\u200bthe building, which will be heated by a long-burning pyrolysis boiler, and the level of protection of its rooms from heat loss are taken into account;

combustion chamber volume. A boiler with a small combustion chamber will require more frequent fuel loading, so it cannot be left without maintenance for a long time, especially in severe frosts;

the quality of the inner coating of the chambers. Chambers, whose walls are lined with ceramic concrete, are more protected from burning out, maintain integrity at the maximum heating level and ensure correct combustion of fuel;

the duration of combustion with a full load of fuel must be at least 10 hours;

level of automation for instrument safety. A pyrolysis boiler for long-term burning should be not only productive, but also safe, therefore, when buying, you need to check if it is equipped with an alarm and an automatic shutdown system;

the presence of an additional circuit. A heater with one circuit can only be used to heat a room. If the boiler is planned to be used to organize hot water supply, then you need to immediately buy a device with a double-circuit design;

cost. You should not save on buying a boiler, since cheap models may not have enough technical capabilities for optimal heating of the room. It is better to purchase a boiler of proven brands that have already been tested in the harsh Russian winters and have earned good reviews from the owners.

Model overview

The modern market offers many different models of long-burning pyrolysis boilers, differing in a number of technical characteristics, dimensions and prices ..

Pyrolysis Master LONGLIFE 18-250 kW

High efficiency, the presence of automatic control over the operation of the boiler and circulation allow this device to effectively perform its functions on one load for 8 - 72 hours (depending on the type of fuel used). The boiler is equipped with a digital controller, an air supply fan, a 5-way heat exchanger with a large volume of coolant, ensuring its high performance. The equipment of the combustion chamber includes water-filled grates and two doors for loading fuel and removing ash residue. The device works equally effectively when manually loading any type of solid fuel into the furnace section: coal, briquettes, firewood, lump peat.

Maximum heating area - 18 - 2500 m²;

power - 18 - 250 kW;

• Price range depending on capacity: - 980 - 7300 conventional units.

Buderus Logano S171

The German pyrolysis boiler of this series has an increased volume of the loading section and an improved design of the heat exchanger and is adapted to work with both natural and forced ventilation of the coolant. Its body is made of high-alloy steel 5 mm thick, fireclay bricks with a longer service life are used for the furnace lining, two ash pan doors, one located on top and the other on the front panel, provide ease of cleaning. Uninterrupted operation of the unit and the protection function is performed by a powerful automatic control system.

Maximum heating area - 500 m²;

power - 50 kW;

• Dimensions - 699х1257х1083 mm;

  The average price is 3600 conventional units.

Bastion M-KST

Universal pyrolysis boilers of Russian production with a capacity of 12 to 30 kW, which differ from imported counterparts in a lower price and compact size, capable of heating an area from 100 to 300 m² (depending on power). Non-volatile devices that do not require frequent removal of ash waste. The combustion chamber is made of a low-alloy steel alloy of 09G2S grade; it simultaneously accommodates firewood, coal, wood waste from 40 - 120 dm³. They can work without refueling for 4 - 12 hours (depending on the moisture content of the fuel, wood species, chimney organization, etc.). The efficiency is at least 85%. The price ranges from $ 670 - $ 1200.

Traian T

Single-circuit devices operating on wood, fuel or peat briquettes. They can maintain a comfortable room temperature with one fuel load for at least 8 hours. In T-series models, the thrust is automatically adjusted when additional equipment A heating element with a capacity of up to 3 kW will maintain the coolant temperature after burning out the wood for several hours.

Today, in economical Europe, solid fuel boilers (pellet and pyrolysis) are one of the most popular types of heating. A solid fuel boiler does not require electricity, gas or liquid fuel; ordinary dry wood or coal is enough for it. In this it differs little from a conventional stove, but it is much more economical, more efficient and safer.
Solid fuel boilers are perhaps the most independent and independent heating method country houses, because solid fuel boilers are in no way connected with engineering communication systems: neither with electricity, nor with gas mains, and even more so with centralized heating systems. Consequently, solid fuel boilers are absolutely irreplaceable in remote wilderness settlements.
Despite the fact that such boilers are inherently very similar to an ordinary stove, they are usually equipped with modern systems automatics are equipped with all the necessary sensors responsible for equipment safety, temperature and other important parameters.

One of the important classifications according to which solid fuel boilers are divided is depending on the material of manufacture of the heat exchanger. Distinguish between cast iron and steel boilers operating on solid fuels.
Cast iron solid fuel boilers are considered more durable. Their peculiarity is that they heat up for a long time, but at the same time cool down slowly, but they must be used extremely carefully, because cast iron is a rather fragile material and is capable of cracking from a sharp temperature drop. Fortunately, currently modern technologies allowed to improve cast iron boilers and reduce their fragility.
Steel solid fuel boilers more resistant to temperature "whims", but have another drawback - weakness to corrosion, which is usually caused by condensation. Cast iron boilers do not suffer from such a problem. It is this minus that makes solid fuel boilers with a steel heat exchanger less durable, but cheaper. In any case, the service life of solid fuel boilers with a steel heat exchanger depends on the quality of the steel and its thickness.
Boilers made of sheet steel are less susceptible to damage from sudden changes in temperature, since steel is a plastic material. The walls of such a boiler are thinner than the walls of a cast iron one, and in order not to get burned, the outer part of the body is isolated from the inner part by modern non-combustible materials. So if you live in a country house permanently, then it is best to purchase a solid fuel boiler made of cast iron. And if you live in a city, but you visit the house and heat it only during your presence, then it makes sense to install a steel boiler. A steel solid fuel boiler can also be used as an auxiliary boiler if gas or electricity interruptions often occur in your area. If desired, some elements of the boiler can be replaced or new ones added in order to switch to a new type of fuel (gas or liquid fuel). True, here you need to take into account one nuance - the efficiency of such a converted boiler will be slightly lower than that of a boiler specially designed to work with gas.

Pellet boilers

It is a complex engineering device that heats the coolant by burning derivatives of wood or coal fuel: briquettes or granules (pellets).

The operation of solid fuel boilers in automatic mode allows not only to reduce operating costs, shifting most of the maintenance and control of equipment operation to automation, but also, using a solid fuel boiler with automatic loading, to achieve a level of comfort in using gas boilers. Such solid fuel boilers (automatic) are still a rarity on the Russian market, but given the promising opportunities, we can assume a great future for them.
Pellets are made from wood waste, which are crushed and pressed into small pellets in the form of a cylinder. Their size ranges from 6 to 14 mm in diameter and no more than 70 mm in length. For the production of this type of fuel, no chemical components are used, and therefore pellets are an environmentally friendly material and at the same time possessing a high heat of combustion. The use of pellets allows to reduce the presence of a person in the boiler operation by automating the process of feeding pellets into the boiler. When transported in a car and stored in a private house, they take up little space. Pellet heating equipment is produced abroad and in Russia. Domestic models, as a rule, are cheaper than imported ones, while foreign ones have more service functions.

Pellet boiler device

Pellet boilers are steel structure, constituent parts which are the body, burner, firebox, heat exchanger, fuel hopper and chimney. After burning the fuel, hot gas is formed; when it leaves the furnace, it flows around the heat exchanger and transfers almost all of its heat to it. The smart design of pellet boilers is a guarantee of amazingly high efficiency (no less than 85%). The power of the devices varies from 15 kW to several megawatts. The heat exchanger is made of various materialssuch as cast iron or steel.

How do pellet boilers work?

The boiler is easy to maintain. It is enough to load fuel into the bunker. Pellets are fed into the furnace from a special hopper by an automatic conveyor. The capacity of the standard bunker provides the boiler with fuel for about 7 days, then the storage is refilled. If desired, this process can be fully automated. Fuel is ignited using automation. In this process, an electric heating element and a fan are involved, pumping air into the furnace. When the fuel burns steadily, the ignition system is turned off.

Varieties of pellet boilers

1. Equipment designed only for the use of pellets;
2. Conventionally combined boilers - usually run on biogranules, but, as a "spare" fuel, they are able to take briquettes or firewood for a short time;
3. Universal boilers - can operate on any solid fuel. It is enough to dismantle the pellet burner, and the device is ready for loading with traditional solid fuel.

Benefits of pellet heating

• Biogranules are almost completely recyclable. Moreover, a negligible amount of combustion products is removed automatically, no more than 1 - 2 times a month;
• The supply of granules and the whole process of work (heat and hot water production) are fully automated;
• The cost of pellets is lower than other solid fuels. Bio granules are always available on the market. It is not a problem to buy a "gas station" for pellet equipment;
• Ideal for heating a private house, summer cottage, where there is no possibility of heating with gas.

Pyrolysis or gas-fired boilers

Pyrolysis boilers are capable of burning wood gas formed during the combustion of firewood, thereby significantly increasing their productivity and efficiency. The fuel in them burns out almost completely, leaving almost no ash. In them, the wood is first completely dried at a high temperature and a small amount of oxygen, turning into charcoal and a volatile part - pyrolysis gas, which is then burned with high efficiency in the furnace. As it burns, the gas interacts with active carbon and, as a result, the smoke leaving the boiler contains much less harmful impurities.
Compared with the classical combustion method, pyrolysis boilers use the unique ability of solid fuel to turn into a gaseous state at high temperatures and in the absence of air. Pyrolysis boilers have a slightly higher price than their classical counterparts with the same power, however, high efficiency and ease of maintenance justify the costs of the purchased boiler in the shortest possible time.

Pyrolysis boiler - device and principle of operation

The pyrolysis boiler works like this: fuel (wood) is put into the upper chamber, ignited, the chamber door closes and the boiler fan turns on. As soon as the temperature inside the upper chamber rises above 250 ° C, the wood begins to char, releasing generator gas that flows through the nozzle into the lower chamber. Here, secondary air is added to the gases obtained as a result of pyrolysis by means of pressurization and they burn, returning some of the heat to the lower level of the fuel load. Secondary air is an air flow that bends around the fuel in the upper chamber on the sides or enters through special slots in the door of the lower chamber of the pyrolysis boiler. The intake of heat from the pyrolysis boiler and its transfer to the heat carrier (water or air) is carried out through the contact of the pipeline with the heat carrier with the bottom of the lower chamber of the boiler. From one full load of the fuel (upper) chamber, the pyrolysis boiler generates heat from 6 to 12 hours, depending on the quality of the fuel and the demand for heat.

Fuel for pyrolysis boiler

In practice, solid fuel pyrolysis boilers can efficiently operate on any type of solid fuel, be it wood, peat, brown and black coal. Of course, the duration of complete combustion for each type of fuel is different and it looks like this:

• soft wood - combustion time no more than 5 hours;
• solid wood - burning time about 6 hours;
• brown coal burns in about 8 hours;
• black coal burns up to 10 hours.

Pyrolysis boilers are most efficient when working on dry wood. It is dry firewood with a length of 45-65 cm, the moisture content of which does not exceed 20%, not only provide the maximum power of the boiler, but also extend its service life. Buying pyrolysis heating boilers, without doubting the effectiveness of their work, can safely be those who have the opportunity to buy dry firewood or at least dry them in case of excess moisture. If there is no confidence in such a possibility, then you can choose a modern high-tech heating boiler, in the furnace of which 80% of highly efficient pyrolysis fuel combustion and 20% of the traditional one are combined. Modern combined boilers provide high-quality combustion of not only firewood, but also wood waste, peat, coal or any mixture of them with a moisture content of up to 50%.

Advantages of pyrolysis boilers:

• high efficiency, achieved by two stages of fuel combustion, as a result, complete fuel combustion and high efficiency - up to 90%;
• work from one tab for a rather long time, up to 12 hours (for ordinary wood-burning boilers, about 3-4 hours, however, for top-burning boilers this figure is higher - from 30 hours on wood, up to 6-7 days on coal).
• the possibility of automatic regulation of parameters, the combustion process allows automation, is easily regulated and controlled;
• less often it is necessary to clean the ash pan and gas ducts;
• integrates into almost any heating system without requiring any major changes;
• laying of non-chopped logs is allowed;
• environmental friendliness achieved by burning more harmful substances in the lower chamber, so that they are not emitted into the atmosphere;
• very high rate of heating of the heat carrier, water or air, up to a comfortable temperature of 60 ° C.

Disadvantages of pyrolysis boilers:

• the need for electricity required for the operation of the fan (smoke exhauster);
• high cost compared to conventional heating boilers;
• the need for low fuel moisture, firewood should have a moisture content of no higher than 20%;
• in operation, they require a high load, when it drops below 50%, the stability of combustion is disturbed, tar accumulates in the smoke channel;
• all models of pyrolysis heating devices are single-circuit units that do not heat water for domestic needs.

And yet, the high environmental friendliness, efficiency and economy achieved due to the complete combustion of fuel and scanty heat loss, fully compensate for the shortcomings of pyrolysis gas-generating boilers and the circle of their admirers is steadily expanding.

The specialists of the Termogorod Moscow company will help you choose the right one, buy,and install a heating boiler,will find an acceptable price solution. Ask any questions you are interested in, consultation by phone is absolutely free, or use the form "Feedback"
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Industrial pellet boilers - Pyrolysis Master, FACI, Roteks

There are a large number of companies engaged in the production of industrial boilers on the domestic market. Particularly popular today are industrial-type units operating on pellets. In this article, we will tell you about three Russian manufacturers that produce such equipment: Pyrolysis Master, Faci, Roteks.

Characteristics of industrial pellet boilers

Let us present the characteristics of industrial pellet boilers Pyrolysis Master PELLET PRO 100-1000 and PELLET 100-320, FACI 105-850 and ROTEKS 100-300 in the table.

Pyrolysis Master

Pyrolysis Master can be characterized by two key words - high manufacturability and efficiency. This is due to the fact that the manufacturer independently develops the design of the equipment and is actively cooperating with European companies that produce boiler equipment under the licensed production scheme.

Industrial pellet boilers Pyrolysis Master are presented in the PELLET PRO 100-1000 kW and PELLET 100-320 kW series. It is efficient equipment with high performance. Heats the room as soon as possible and retains heat for a long time.

Heating devices of the PELLET PRO 100-1000 kW series are manufactured in accordance with the requirements of GOST-30735-2001. The working pressure in the boiler jacket is 6 atm. The temperature regime of the heating agent supply is up to 115 ° C.

The boiler is equipped with an automatic system for maintaining the set temperature of the coolant at the outlet and an automatic ignition system.

In the event of a temporary power outage, it is possible to heat the boiler with wood or fuel briquettes.

The boilers can be operated on most types of solid fuel in the form of a pellet fraction. The technical and economic parameters of the boiler declared by the manufacturer are achieved when using fuel with a specific heating value of at least 16.4 MJ / kg. When using fuel with a different calorific value, or with a moisture content of more than 20%, the technical and technical and economic indicators of the boiler operation may differ both upward and downward.

The boiler is equipped with an automatic system for maintaining the set temperature of the coolant at the outlet and an automatic ignition system.

A weather-dependent control system has been implemented, it is possible to control it using a built-in programmable thermostat and the ability to monitor and control the heating process remotely using additional modules.

The basic volume of the pellet hopper is from 1000 liters and can be increased at the request of the buyer.

Additionally, the boiler device allows installing automatic ash removal, automatic pneumatic cleaning of the heat exchanger, controllers for remote control of the boiler using a smartphone or computer via the Internet and via SMS, as well as controllers for automating the operation of the heating system hydraulics.

The characteristic features of the boilers are a twin-screw feed, tray burner. All electrical assemblies and automation are made in accordance with high quality European standards.

Let's consider the main technical characteristics of both series.

The units of the PELLET PRO 100-1000 kW series are capable of effectively heating a room from 1000 to 10000 m².

Pellet boiler Pyrolysis Master PELLET PRO

Equipment and functionality:

• boiler combustion chamber heat exchanger for industrial facilities with a working pressure of 0.6 MPa and a supply temperature of up to 115 ° C;
• a practical tray-type retor burner with automatic cleaning for pellets with different ash content;
• equipment operation is fully automated;
• there is a weather-dependent regulation and a weekly schedule for the operation of the heater;
• a burner made of cast iron with a twin-screw fuel supply system and an auto-ignition ceramic shade;
• turbulators;
• a bunker for pellets 1-2 m³ (custom volume can be any);
• control of heating circuits and three-way valves;
• differential boiler power control (PID), which ensures the most smooth and economical operation in all ranges of heat consumption;
• there are tools for servicing the combustion chamber;
• automatic cleaning of the burner (an additional option for pellets with increased ash content - sunflower husk, bark, peat, slab);
• SMS control of the heater (additional option);
• boiler control via PC, smartphone (additional option).

Boilers of the PELLET 100-320 kW series are designed to supply heat to premises with an area of \u200b\u200b1000-32000 m2.

Industrial pellet boiler Pyrolysis Master PELLET

The functionality and characteristics of pellet boilers are as follows:

• heat exchanger for the most economical consumption of pellets;
• high productivity - efficiency reaches 90% or more;
• the retort burner is unpretentious to the quality of the pellets, the boiler can be fired even with the cheapest pellets;
• high-quality electronics of European production guarantees the uninterrupted stable operation of the boiler;
• the burner is made of cast iron, there is a twin-screw fuel supply system and ceramic auto-ignition;
• boiler automation with sensors;
• pellet hopper (can have any volume on request);
• burner auto-cleaning (additional option for high-ash pellets: peat, bark, sunflower husk);
• ash removal system (optional);
• SMS boiler control (additional option);
• boiler control via computer, smartphone (additional option).

FACI

Pellet boilers produced by this manufacturer belong to the category of economical equipment, because pellets of any quality can be used as fuel (wood, buckwheat, peanut, almond, pine nut shells, coal, firewood, etc.).

Pellet boiler FACI

FACI boilers are an environmentally friendly form of heating, they can be installed both in closed and open heating systems. You do not have to constantly monitor the operation of the equipment, they are very easy to clean.

The complete set of heating devices includes a large bunker for loading fuel, and there are doors for cleaning on the front side of the boiler. All Faci boilers, in particular industrial ones, are safe to maintain and operate. This is due to their design and built-in automation. Also, the units have overheating protection.

All boilers have a twin-screw fuel supply system, which means that the flame will not get out of the boiler into the bunker in any way. If we compare traditional solid fuel units with FACI, the latter produce the most economical heat.

Their performance is high, the efficiency reaches 92%, which indicates that the fuel is burned to the end.

Another important advantage is that the pellet boilers manufactured by FACI are an environmentally friendly source of thermal energy. The design of the devices is such that the fuel burns out completely, and in terms of flue gases and emissions into the atmosphere, the units correspond to class A, the best in Europe.

Industrial boilers include heating devices with a capacity of 105 to 911 kW. Designed for heating and providing hot water supply in rooms ranging from 1050 to 10000 m2.
They are made of high quality durable steel. The design includes a three-row heat exchanger for high efficiency and energy savings. The heat exchanger is made of seamless steel pipes, which are submerged in water, they are located in the upper part of the combustion chamber equipped with a descending screw. This speaks to the natural protection of the system from reentry. The devices can operate on any kind of crushed fuel.

Specifications and functionality:

• automatic fuel supply mode (main) - pellets, crushed biomass;
• manual mode of fuel supply (reserve) - firewood, briquettes;
• three-row heat exchanger;
• twin-screw automatic fuel supply system (the risk of fuel ignition in the bunker is reduced to zero);
• the burner is made of cast iron;
• a fuel bunker ensuring continuous operation of the device;
• volumetric bowl for combustion;
• digital control panel;
• air is pre-mixed, which contributes to an increase in efficiency;
• automatic ash removal system (optional);
• boiler auto-ignition (additional option);
• automatic heat exchanger cleaning system.

Roteks

Pellet boilers Roteks are manufactured by ChZSK, a Russian company that manufactures pellet boilers for heating, modular boilers, units and components for boiler equipment. The equipment is considered efficient and is in great demand among domestic users.

Boiler for fuel pellets Rotex

As a distinctive feature of this equipment, one can single out the presence of a retor burner, which is absolutely unpretentious to the quality of pellets, the three-way heat exchanger is vertical, which allows keeping the surface of the heat exchanger clean.

In this regard, the Rotex pellet boilers are characterized by high performance, the efficiency reaches 93%. If necessary, in specialized stores you can always find spare parts that are much cheaper than imported ones.

Industrial pellet boilers Roteks are presented in a series from 100 to 300 kW in the "LUX" and "ECONOM" configurations.

The technical characteristics of heaters of both series with the same output do not differ in any way.

Boilers belonging to "LUX" and "ECONOM" operate on solid granular fuel, meet the requirements of GOST 20548-87 and GOST 30735-2001, are fully automated. The advantage of the "LUX" series is the option of remote on / off switching, as well as SMS-notifications about the boiler operation.

It can be concluded that all three manufacturers are not in vain occupying leading positions in the market, because produce quality equipment. Choosing industrial pellet boilers, it is necessary to analyze all the options well and, based on personal requirements, choose the most optimal option. If you choose a boiler from the three proposed options, then, based on practicality and economy, the Pyrolysis Master equipment looks the most attractive. But the final choice is yours.

Prices for boilers of the Standart series

Prices for boilers of the Premium series

The company Pyroliz Master TM is ready to offer a series of long-burning boilers based on gas-generating technology. Equipment modifications make it possible to work on heating both industrial facilities and private individual houses. Such systems are especially effective in the woodworking industry, since they allow the use of production waste as an energy carrier.

Principle of operation and design features

Due to their design, gas-fired boilers are a fairly inexpensive source of thermal energy conversion. The main advantage here is a multi-chamber system that allows gas generation from solid fuels. The resulting gas, passing the stage of efficient combustion, transfers the maximum amount of heat through the heat exchanger.

Distribution of chambers of a gas-fired boiler

Heating equipment of this brand is equipped with four chambers, each of which performs its own specific function: The main chamber for loading and low-temperature impact on the fuel volume. Here the solid fuel is separated into combustion gases and an incombustible residue (ash);

The ash pan or ash chamber under the loading has the function of collecting ash; High-temperature combustion chamber. The combustion of gas takes place here. Thanks to the special design of the air nozzles, the process becomes complete and environmentally friendly. The walls of the chamber are protected with fireclay bricks, which increases the working life of the boiler; Chamber with a tubular heat exchanger. Here, the most efficient removal of thermal energy and its transfer to the coolant takes place. Due to this, the gases entering the chimney are already practically cold. Gas generating boilers Pyrolysis Master TM: equipment series

Boilers of this brand are presented in two series produced.

"Premium" series. The design of such a boiler is made of 10mm thick heat-resistant steel 09G2S. For greater protection and a longer service life, the inner walls of the combustion chamber are protected with fireclay bricks. This provides the necessary thermal insulation and prevents excessive expansion of the metal parts. The large area of \u200b\u200bthe heat exchanger creates conditions for optimal removal of heat energy, thanks to which the boiler surface remains cold, and the efficiency is maximum.

Series "Standart". Boilers of this line are not inferior in quality and technical equipment. The difference here will be the overall dimensions, weight of the equipment and, accordingly, thermal power. In turn, they have a lightweight combustion chamber, due to the wall thickness of 8 mm.

Advantages of boilers Pyrolysis Master

Boilers Pyrolysis Master is an excellent solution for autonomous heating of production facilities and residential buildings. Operating on popular types of solid fuel, the boiler has a high efficiency and a sufficiently long service life.

Specifications