Biomass hot-blast stove should remove ash on heating surface of hot-blast stove in time. Hot-blast stove adopts reciprocating grate, which is the most suitable combustion equipment for biomass fuel combustion. In the structure design of hot blast stove, compared with the traditional hot blast stove, the furnace has larger space and reasonable secondary air arrangement, which is conducive to the full combustion of a large amount of volatile matter released in the instant of biomass fuel combustion.
Hot blast stove can be equipped with fuel (gas) ignition burner to realize ignition automation. The feeding, combustion, slag removal, water supply and ignition of hot blast stove can be controlled automatically, and the operation is very convenient. Hot blast stove is equipped with automatic ash cleaning device, which can remove the ash deposited on the heating surface of hot blast stove in time and ensure the efficient and stable operation of hot blast stove. The economizer is arranged at the rear of the hot stove, and the air preheater can also be arranged according to users' needs. Compared with the traditional hot stove, the efficiency of the hot stove is higher and the exhaust temperature is low.
With high efficiency insulation material, the surface temperature of the hot stove is low, and the heat loss can be neglected. According to China's national standards and standards strictly, all pressurized parts are made of high quality hot blast stove steel. Every hot blast stove must undergo strict inspection and test before leaving the factory, including water pressure test and X ray inspection. It is convenient to maintain and maintain manholes, check doors and fire holes. The main characteristics of biomass hot stove are: energy saving, environmental protection, and easy installation and use.
The fuel of hot blast stove is BMF fuel. The fuel is fed into the top bin by the feeder, and then into the furnace by the screw feeder, evenly scattered on the grate.
The fuel is fed into the furnace by the screw feeder, where it is gradually preheated, dried, ignited and burned due to the action of high temperature flue gas and primary air. During this process, a large amount of volatile matter is precipitated and burned intensely. After the high temperature flue gas washes out the main heating surface of the hot blast stove, it enters the economizer and air preheater of the heating surface at the tail of the hot blast stove, then enters the dust collector, and finally discharges into the atmosphere through the chimney. The non-gasified fuel moves towards the back of the grate until it burns out. Finally, a small amount of residue falls into the slag removal port behind the grate.
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