| abstract |
The invention relates to the technical field of combustible industrial solid waste disposal, in particular to a system and a method for disposing combustible industrial solid waste, which comprises a circulating fluidized bed boiler, a crushing and conveying device, a stokehole feeding device, a bed material conveying device, a two-stage SNCR (selective non catalytic reduction) denitration device and a flue gas treatment subsystem; the air inlet pipeline of the J valve material returning device of the circulating fluidized bed boiler is communicated with a material returning fan, the smoke outlets of the two cyclone separators are communicated with a vertical shaft flue at the tail part of the circulating fluidized bed boiler through pipelines, and the vertical shaft flue is sequentially provided with a high-temperature superheater, a low-temperature superheater, an economizer and a horizontal air preheater from top to bottom. The invention solves the problem of disposal of industrial solid waste, other fuels such as coal, fuel oil, natural gas and the like do not need to be mixed and burned in the normal combustion process, and ash slag and deacidified ash generated by combustion can be general waste which can be comprehensively utilized, and flue gas after deacidification and dedusting meets the requirement of ultra-clean emission. |