The combustion facilities of boiler
From;    Author:Stand originally
The combustion means of boiler has 3 kinds of forms: The layer is lighted (grate firing) , room light (suspension burns) , fluidized-bed combustion. All sorts of combustion means have its corresponding combustion facility. Platoon of fixed furnace platoon, chain furnace platoon, furnace of move back and forth, oscillatory furnace platoon belong to a layer to light type, apply to combustion solid fuel. Coal fines boiler, oil fired boiler, gas fired boiler belong to room light type, apply to farinaceous solid fuel, liquid fuel and aeriform fuel. Fluid-bed bosomy bubble, loop fluid-bed attributes fluidized-bed combustion kind, apply to fuel of solid body of combustion grain state. Cast platoon of furnace of coal machine chain, hold concurrently the layer is lighted and room burning combustion way, attribute mixture combustion kind.
1, fixed furnace platoon: The layer with a kind of the oldest, simple structure lights flaming equipment, divide platoon of furnace of monolayer of kind of monolayer furnace platoon and A of platoon of double deck furnace to use cast-iron make, have board shape and platoon of furnace of strip B double deck, there is fluctuation inside two furnace platoon, furnace discharges the fixed furnace that comprises by water cooling pipe on, platoon leaving stove is common and cast-iron fixed furnace platoon. Furnace discharges above space to be air compartment on, platoon leaving stove is grey hole below, two layer furnace are firebox between the platoon.
2, chain furnace platoon: A kind of structure compares perfect combustion facilities. Because mechanization rate is high (coal, slag remove, wait to all machinery is finished except ash) , workmanship is mature, moving stability is reliable, dial fire to be able to make fuel flaming more sufficient artificially, combustion rate is higher also, apply to boiler of big, medium, small-sized industry. Platoon of homebred chain furnace can divide chain belt type, crossbeam type and furnace of scale type chain to discharge by the structure. The combustion boiler of the steam boiler that platoon of furnace of chain of type of A chain belt belongs to light-duty structure to apply to rated capacity to be less than 10t/Hd or corresponding capacity. Platoon of furnace of chain of B beam type is to use the beam with very strong tigidity to make stand, furnace is discharged piece set the groove at bracket beam inside, the beam when the chain wheel that goes up when drive shaft drives chain to turn and the platoon of whole Fu Lu on its move subsequently. Platoon of furnace of chain of C scale type applies to rated capacity to be more than the combustion boiler of the steam boiler of 10t/Hd or corresponding capacity.
3, platoon of furnace of move back and forth: One kind uses furnace to discharge reciprocate to realize the coal, combustion equipment that removes the broken bits, mechanization that stir anger. Platoon of furnace of platoon of furnace of move back and forth is pressed decorate means to be able to be divided tilt platoon of furnace of move back and forth and A of platoon of furnace of horizontal move back and forth tilt platoon of furnace of move back and forth is tilt a flight of stairs, the mobile stove that furnace platoon has alternate with to decorate is discharged piece discharge a composition with fixed furnace. Platoon of furnace of B level move back and forth is to fixed furnace is discharged piece discharge a crisscross composition with mobile furnace,
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