Low-pollution efficient combustion method for coal-burning boiler and combustion apparatus
A combustion method and coal-fired boiler technology, applied in the direction of combustion methods, solid fuel combustion, fuel burned in a molten state, etc., can solve problems such as high smoke and dust
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[0058] Accompanying drawing 2 is a schematic diagram of the structure of a combustion device with a chain grate combustion furnace that implements the combustion method of the present invention shown in Figure 1 and is applied to large-capacity industrial boilers. The combustion device is mainly composed of a fluidized bed gasification furnace 1, a chain grate semi-coke combustion furnace 2, a boiler heat exchanger 4 connected to the upper space of the combustion chamber 14 of the chain combustion furnace 2, and a particle flow on the left side wall. The fluidized bed rear wall 51 and the fluidized bed windbox rear wall 52 form the conveying channel 3 formed by the boiler heat exchanger front wall 6 (extended downwards) on the right side. Coal fuel and desulfurizer are supplied into the fluidized bed gasifier 1 from the other side of the conveying channel 3 . In order to facilitate the supply of fuel and desulfurizer, the supply port A is located above the upper surface of the...
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