Chain grate biomass boiler its fuel combustion general adjustment principle mainly for the following several. First chain grate boiler production to ensure that the of fuel can be continuous input, and if it is dry, its particle size to meet the specified requirements. The furnace should not leak, and the frequency of the grate vibration should be appropriate, according to the size of the boiler load to adjust, make it appropriate. Its air supply to ensure that it is sufficient, its oxygen should be greater than the pulverized coal furnace to go. Because grate vibration is a remixing process, it is recommended to use long interval and short vibration mode to prevent severe disturbance in the furnace, which will affect the combustion of fuel. Its heating surface, should prevent the occurrence of ash, coking and corrosion phenomenon.
Biomass fired boiler has full output, high thermal efficiency, stable and reliable operation, strong overload capacity, wide fuel applicability, energy conservation and environmental protection, and many other advantages. Double drum transverse structure is adopted to completely overcome the overheat bulge caused by pot drum directly exposed to the furnace, and the heating surface layout is more reasonable. The membrane water wall structure is adopted on both sides of the furnace, which not only ensures the sealing of the furnace, but also improves the thermal efficiency of the boiler.
When the chain grate boiler production convection tube bundle and economizer heating surface, reserved ash blower interface. For special fuel (especially strong bonding) can take necessary means, preventive. The inverted “” type furnace arch technology is adopted to improve the combustion characteristics of fuel, and the coal has wide adaptability. The water-cooled arch structure not only increases the rigidity and stability of the arch, but also prolongs the service life of the arch.
The series chain grate boiler adopts improved GEF special slag removal technology. The new chain grate is adopted, the unique safety ring is added, the technical problem of grate flake is overcome thoroughly, the air leakage of grate is reduced effectively, the grate operation is stable and reliable, and the combustion efficiency is greatly improved. The optimized structure of the air distribution chamber with independent regulation of both sides of the grate is adopted, which can effectively satisfy the combustion of the fuel into the furnace.
This series of boilers product adopts special secondary wind structure, which effectively improves the air force field in the furnace, and leads the hot particles forward to arch, which is beneficial to the ignition of fuel. At the same time, it extends the residence time of fuel in the furnace, and improves the adaptability and utilization rate of fuel. The chain grate of biomass boiler adopts the structure form of double-layer or single-layer arrangement, which can better meet the actual needs of users.
The chain grate boiler production a combustion chamber, a convection tube bundle, and a economizer at the end. The flue gas passes through the furnace, burnout chamber, convection tube bundle and economizer into the tail flue, and is discharged into the atmosphere through dust collector, induced draft fan and chimney. The front wall is equipped with secondary air, controlled by the valve, which is put into use when burning biomass fuel, intensifying combustion, making fuel burn out fully and improving combustion efficiency. A higher feed inlet is used to meet the demand for biomass fuel.