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A swirling fluidized bed incineration device

An incineration device and fluidized bed technology, applied in the direction of incinerators, combustion methods, combustion types, etc., can solve problems such as waste, uneven particle mixing, and insufficient incineration, so as to reduce equipment volume, prolong residence time, and reduce Effect of Fly Ash Carbon Content

Active Publication Date: 2017-11-24
潍坊联荣环保设备有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a swirling fluidized bed incineration device to solve the problem of insufficient incineration caused by uneven particle mixing in the existing fluidized bed combustion process.

Method used

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  • A swirling fluidized bed incineration device
  • A swirling fluidized bed incineration device
  • A swirling fluidized bed incineration device

Examples

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Embodiment Construction

[0024] Figure 1-Figure 9 As shown, the specific implementation is as follows:

[0025] A swirling fluidized bed incineration device, comprising an incinerator 6 providing an incineration space for the fluidized bed, a cyclone separator 8 for recovering insufficiently combusted components for combustion again, and in the inner cavity of the incinerator 6 The lower space forms a dense-phase area, and the upper space forms a dilute-phase area. An air inlet 1 is provided at the bottom of the incinerator 6, and an air distribution plate is arranged between the air inlet 1 and the furnace chamber of the incinerator 6 to distribute air. The plate separates the air inlet 1 from the dense phase area of ​​the incinerator 6 to form an air chamber 10, the gas inlet of the cyclone separator 8 communicates with the gas outlet on the top of the incinerator 6, and the ash outlet of the cyclone separator 8 is connected to the incinerator 6 The feed port at the bottom is connected, and the fu...

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Abstract

A swirling fluidized bed incineration device, comprising an incinerator providing an incineration space for the fluidized bed, a cyclone separator for recovering insufficiently combusted components for re-combustion, the furnace wall of the incinerator is located at There are at least three layers of secondary air injection ports on the transition area between the dense phase area and the dilute phase area. The other end of the secondary air injection ports is connected to the secondary air source. On each furnace wall, the air flow is a spiral air flow to enhance the horizontal mixing of particles and air in the incinerator and prolong the residence time of particles in the furnace. The high-speed secondary air classification of the present invention is sprayed into the dilute phase area above the air distribution plate of the circulating fluidized bed boiler by means of wall-type tangential combustion, so as to enhance the lateral mixing of particles and air and make the temperature distribution in different areas in the dense phase area more uniform , improve combustion efficiency and desulfurization efficiency, reduce NO x Discharge, enhance heat transfer, reduce equipment volume.

Description

technical field [0001] The invention relates to a clean burning device, in particular to a swirling fluidized bed burning device. Background technique [0002] The circulating fluidized bed boiler is a clean combustion equipment. The lower part of the combustion chamber is a dense-phase area, and the upper space is a dilute-phase area. The material density in the furnace is high, and the secondary air penetration is weak. When using anthracite, coal slime, domestic garbage, biomass and other fuels, the gas-solid particles cannot be fully mixed, and the fuel combustion is insufficient. The particles with larger particle sizes can be captured by the cyclone separator and returned to the furnace for re-burning. The fine particles fly out of the furnace and pass through the cyclone separator at one time, and its burnout rate is low, resulting in a high carbon content in the fly ash in the tail flue. If the circulating fluidized bed adopts a special layout method, by changing th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/30
Inventor 王学涛段景卫兰维娟刘春梅田中君
Owner 潍坊联荣环保设备有限公司
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