Sludge drying method and dryer
A dryer and sludge technology, applied in separation methods, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve problems such as low fuel utilization rate and environmental pollution, achieve good heating effect, reduce Pollution, the effect of improving utilization
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[0038] The present invention will be further described below in conjunction with accompanying drawing with specific embodiment:
[0039] A method for drying sludge, the method comprising the following steps:
[0040] A: Drying: Transport the sludge to the drying cylinder 1 of the dryer, provide a heat source in the combustion hood 5 of the dryer to heat the outer wall of the drying cylinder 1, and generate heat and smoke through the combustion hood 5 The flue gas return pipe 7 is transported to the inside of the drying cylinder 1 to directly heat the sludge.
[0041] B: Desulfurization and dust removal: the flue gas in the drying cylinder 1 is connected to the water film dust collector 9 through the exhaust pipe, and desulfurization and dust removal are performed in the water film dust collector 9 .
[0042] C: Condensation: Condensate the gas after desulfurization and dust removal, and collect the condensate. Preferably, the gas after desulfurization and dust removal is cond...
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