Semi-dry desulfurizing process in double feedback circular fluidized bed
A circulating fluidized bed and semi-dry desulfurization technology, applied in chemical instruments and methods, separation methods, lighting and heating equipment, etc., can solve problems such as ash collapse, loss of comprehensive utilization value, and large resistance of cyclone separators, etc., to achieve The effect of reducing equipment cost, reducing construction investment, and facilitating operation and management
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[0015] Example 1
[0016] As shown in Figure 1, 1 is a pre-electrostatic precipitator, 2 is a fluidized bed reaction tower, 3 is a desulfurizer nozzle, 4 is an electrostatic precipitator (or bag filter), 5 is a Roots blower, and 6 is an ejector type Nozzle, 7 is hopper, 8 is Roots blower, 9 is return box, 10 is cyclone separator, 11 is low screw feeder, 12 is high screw feeder, 13 is hopper, 14 is screw conveyor, 15 is an induced draft fan, 16 is a flue gas recirculation damper, 17 is an on-site industrial water tank, 18 is an industrial water pump, 19 is an on-site slurry tank, 20 is a slurry pump, 21 is a compressed air storage tank, and 22 is a chimney.
[0017] A is the industrial water inlet, B is the slurry inlet, C is the compressed air inlet, and D is the boiler flue gas inlet.
[0018] As shown in Figure 2, 61 is the bottom of the reaction tower, 62 is the primary nozzle, 63 is the secondary nozzle, 64 is the primary nozzle, and 65 is the secondary nozzle.
[0019] The op...
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