Air distribution arrangement structure of fluidized bed boiler for waste incineration

Abstract

The invention discloses an air distribution arrangement structure of a fluidized bed boiler for waste incineration. The air distribution arrangement structure comprises a fluidized bed incinerator. The fluidized bed incinerator comprises a hearth and a horizontal flue connected to the upper part of the hearth. A cyclone separator is connected to the outlet of the horizontal flue. Primary air and secondary air are arranged on the fluidized bed incinerator, and the secondary air is uniformly distributed in the upper middle part of the hearth of the fluidized bed incinerator. The structure primarily solves the air distributing problem after the fluidized bed boiler is used for waste incineration. An existing fluidized bed boiler can fit waste incineration in China by changing air distributionof the fluidized bed boiler, so that emission of ash and harmful gas is reduced.

Description

technical field [0001] The invention belongs to the field of garbage incineration by a circulating fluidized bed boiler, and in particular relates to an air distribution arrangement structure of a fluidized bed boiler for garbage incineration. Background technique [0002] With the increasing pressure on national waste disposal and the increasing requirements for clean disposal of waste, the waste incineration industry has increasingly developed into an indispensable industry. The clean disposal of waste has received closer attention and attention from the entire country. Waste incineration is currently the world's widely used treatment. [0003] For garbage incineration equipment, most of the equipment in the domestic market is currently imported as a complete machine, or the existing coal-fired furnace is used for modification. The common one is a circulating fluidized bed boiler, whose combustion method is boiling combustion, allowing the garbage to be fluidized It burns...

AI Technical Summary

Problems solved by technology

[0008] d. Continuing to use the secondary air distribution scheme of coal-fired fluidized bed boilers leads to low effective combustion participation of secondary air and high oxygen content in tail flue gas;

[0009] e. The uncontrollable way of putting garbage into the furnace leads to frequent deflagration, and the uncontrollable furnace pressure field leads to unstable combustion and excessive CO

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