Circulating fluidized bed domestic waste incineration power generation boiler

Abstract

The invention specifically discloses a circulating fluidized bed domestic waste incineration power generation boiler, which solves the problems of low combustion efficiency, severe corrosion and large possibility of large-area coking in the current circulating fluidized bed domestic waste incineration power generation boiler. A coal economizer comprises an upper coal economizer and a lower coal economizer, a fluidized back feeder, which is internally provided with a high temperature superheater, is arranged between the lower parts of a cyclone separator and a hearth and is also communicated with both, a plurality of secondary air jet orifices are arranged at hearth sidewall around a domestic waste feeding port, and a convective evaporation heated surface, the upper coal economizer, a lower temperature superheater, the lower coal economizer and an air preheater are sequentially arranged inside a shaft flue at the tail of the boiler from top to bottom. The circulating fluidized bed domestic waste incineration power generation boiler solves the problems of low combustion efficiency, severe corrosion and large possibility of large-area coking in the current circulating fluidized bed domestic waste incineration power generation boiler, and has the advantages of simple structure and convenient operation.

Description

technical field [0001] The invention relates to a circulating fluidized bed boiler, in particular to a circulating fluidized bed domestic waste incineration power generation boiler. Background technique [0002] With the development of circulating fluidized bed boiler combustion power generation technology, the technology of circulating fluidized bed incineration of household waste power generation has been fully reflected and rapidly applied and promoted throughout the country. At present, the circulating fluidized bed is the best choice for burning domestic waste. In the fluidized bed waste incinerator, the bed material has a high heat capacity, which provides sufficient preheating and drying heat source for domestic waste, even if the water content reaches 50 ~60% of the fuel can not only burn stably, but also achieve a high burnout rate; this is not only reflected in the smooth ignition and combustion of garbage of different qualities in the circulating fluidized bed, bu...

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a circulating fluidized bed domestic waste incineration power generation boiler in order to solve the problems of low combustion efficiency, serious corrosion and large-area coking phenomenon in the existing circulating fluidized bed domestic waste incineration power generation boiler

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