A kind of fluidized bed combustion furnace and combustion method

Abstract

The invention discloses a fluidized bed combustion furnace and a combustion method, comprising a fluidized combustion zone and a rotary drying layer combustion zone; The rotary drying layer combustion area is used to realize the rotary drying layer combustion of materials; the fluidized combustion area is used for fluidized combustion of the materials that have passed through the rotary drying layer combustion area. The material enters the combustion furnace through the material inlet of the fluidized bed, and is first piled up in the rotary drying layer combustion zone for rotation, drying and partial layered combustion. Fluidized combustion in the combustion zone. The technical solution of the present invention can solve the problem that the existing fluidized bed combustion technology has high requirements on the particle size of the material and needs to be crushed first, the energy consumption is large and the residence time of the fuel in the furnace is too short, which causes the large particle size material and high humidity material to be unable to fully burn The problem.

Description

technical field [0001] The invention relates to the fields of energy and environmental protection, in particular to a fluidized bed combustion furnace and a combustion method. Background technique [0002] In recent years, with the advancement of the country's ecological civilization construction, how to rationally, effectively, harmlessly and resourcefully dispose of large amounts of solid waste such as municipal solid waste and agricultural and forestry biomass has attracted widespread attention from the whole society, and related technology research has also become an energy resource. Research hotspots in the field of environmental protection. [0003] The use of boiler equipment for incineration heat utilization is one of the main methods for efficient treatment of this type of solid waste, which has a series of advantages such as significant volume reduction effect and energy heat recovery and utilization. [0004] Fluidized bed combustion technology is a combustion he...

AI Technical Summary

Problems solved by technology

[0012] By providing a fluidized bed combustion furnace and a combustion method, the present application solves the problem that the existing fluidized bed combustion furnace technology has high requirements on the particle size of the material and needs to be crushed first. The problem that materials with large particle size cannot be completely and fully burned

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