RDF garbage incinerator of circulating fluidized bed

Abstract

The invention discloses an RDF garbage incinerator of a circulating fluidized bed, and relates to the field of circulating fluidized bed boilers. The RDF garbage incinerator of the circulating fluidized bed comprises an inclined air distribution device, a layered air supply water cooling wall hearth, a high-temperature water cooling cyclone separator, a cooling chamber and an external heat exchanger. The inclined air distribution device is arranged at the bottom of the layered air supply water cooling wall hearth. Multiple upper secondary air ports and multiple lower secondary air ports are arranged on the layered air supply water cooling wall hearth. A discharging opening of the layered air supply water cooling wall hearth communicates with a feeding opening of the high-temperature watercooling cyclone separator. A gas outlet of the high-temperature water cooling cyclone separator communicates with a gas inlet of the cooling chamber. A material falling leg of the high-temperature water cooling cyclone separator communicates with a feeding opening of the external heat exchanger. A discharging opening of the external heat exchanger communicates with a material return port of the layered air supply water cooling wall hearth. By means of the RDF garbage incinerator of the circulating fluidized bed, the combustion efficiency, running stability and economic performance of a circulating fluidized bed boiler are improved.

Description

technical field [0001] The invention relates to the field of circulating fluidized bed boilers, in particular to a circulating fluidized bed RDF garbage incinerator. Background technique [0002] At present, the most important way to deal with household waste in China is incineration for power generation, mainly in two forms: grate furnace and circulating fluidized bed. In the past few years, my country's domestic waste generally has the characteristics of complex composition, high moisture content, and low calorific value. In order to ensure the stable combustion of the boiler, the circulating fluidized bed generally adds a part of auxiliary fuel with high calorific value. [0003] With the promotion of waste classification in China, on the basis of good waste classification, the composition of domestic waste has changed, the moisture content has decreased, the calorific value has increased, and the amount of adulterated construction and large-scale domestic waste has been ...

AI Technical Summary

Problems solved by technology

[0007] For this reason, the present invention provides a circulating fluidized bed RDF garbage incinerator to solve the problems of low combustion efficiency, low steam parameters, poor stability and high processing costs in the existing garbage combustion technology

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