The chain grate biomass steam boiler is a single pot cylinder longitudinal type water and fire tube shell boiler, and the combustion equipment is an active grate. Biomass steam boiler supply furnace on both sides of the water wall for radiation heating surface, the two wings of the furnace for convection heating surface. The tube is arranged in the convective heating surface of threaded smoke pipe, the front and back arches are made of heat-resistant concrete with a new technology of integral pouring and ramming, and the outer side of the boiler main engine is a three-dimensional protective plate shell.

Biomass energy pellet fuel is a major scientific research achievement in the fuel application, it is the use of straw, rice straw, fuelwood, sawdust, peanut shell, melon seed shell, bai, bark and other waste crops, after crushing – mixing – extrusion – drying and other processes, the best pellets pellets. Its raw materials are widely distributed, the processing technology is advanced, the biomass energy granular material is famous for green coal, is a kind of clean energy. As a fuel for boilers, it has a long combustion time, high temperature in the strengthened combustion furnace, and is economical and affordable. At the same time, it has no pollution to the environment. It can replace wood, coal and natural gas, and is an efficient and energy-saving environmental protection product.

This series of steam boiler combustion equipment, furnace structure design is reasonable, and the design of fuel varieties, to ensure safe, stable and efficient combustion. The heating surface of this type of biomass fired boiler is reasonably arranged. Select reasonable and economical flue gas flow rate to reduce flue gas resistance. The biomass steam boiler supply is reasonable to set up the access door (hole), convenient for the heating surface cleaning, scaling, maintenance and repair. When the convection heating surface is easy to accumulate ash, ash removal device should be set up. The boiler door (hole), peephole and slag outlet shall adopt sealed structure to ensure that the boiler air leakage coefficient is within the design requirements.

The boiler in the boiler room system design, should be in the premise of ensuring safety performance, fully improve the efficiency of energy use, reduce water, electricity, self-use heat and other consumption, promote heat recovery and cascade use. Boiler room equipment layout should be as far as possible to reduce the length of pipes, smoke duct and the number of elbows, in order to reduce flow resistance. The primary duct should be circular structure, and its expansion and hanging support should be considered.

Biomass steam boiler supply auxiliary equipment shall be matched with the boiler to meet the requirements of the efficient operation of the boiler and its system. When the user heat load fluctuates greatly and frequently, load balancing measures should be taken to achieve effective regulation. The system of multiple boilers should be equipped with centralized control device to ensure the balance and economic operation of the boilers. The selection of the boiler product medium parameters should meet the requirements of use, should not make the rated outlet pressure and temperature of the boiler and the use of pressure, temperature difference is too large.
 

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