A kind of stepped air bundle air distribution plate of circulating fluidized bed gasifier

A technology of circulating fluidized bed and air distribution plate, which is applied in gasification process, granular/powdered fuel gasification, petroleum industry, etc. It can solve problems such as ash leakage and air chamber blockage, and achieve long service life and concentrated airflow , well-designed effects

Active Publication Date: 2018-04-10
ZHONGJUXIN OCEAN ENG EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the unreasonable setting of the wind cap, the traditional air distribution plate still has serious dust leakage phenomenon, which causes the air chamber to be blocked.

Method used

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  • A kind of stepped air bundle air distribution plate of circulating fluidized bed gasifier

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Experimental program
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Embodiment 1

[0016] as attached figure 1 What is shown is the situation that the present invention is applied in a special-shaped internal circulating fluidized bed gasifier. The pulverized coal delivery pipe c and the carbon-containing fly ash delivery pipe d provided in the middle of the gas mixture chamber 301 deliver the pulverized coal and carbon-containing fly ash to Into the mixed gas chamber 301, the bottom of the mixed gas chamber 301 is provided with a gasification agent conduit e to send the gasification agent into the mixed gas chamber 301, and the pulverized coal and carbon-containing fly ash meet the gasification agent in the mixed gas chamber 301 and burn and gasify , the gasification agent in the gas mixture chamber 301 and the coal gas with high-temperature fly ash produced by combustion enter from the lower end of the vent hole 201 to the upper end of the vent hole 201, and then enter the gas material mixture through hole 203 and rush toward gasification Furnace 1 cavity....

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PUM

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Abstract

The invention provides a ladder-shaped wind beam wind-distribution plate of a circulating fluidized bed gasifier. A labyrinth of vent holes of the wind-distribution plate is set, and air outlet ends of the vent holes are converged to a same macropore channel; a column-shaped hole is formed in the upper part of the wind-distribution plate, and a hollow circular truncated cone which is smaller at the upper part and bigger at the lower part is arranged at the lower part of the wind-distribution plate; the upper edge of the circular truncated cone is connected with the edge of the lower end of an air-material mixture through hole; the circular truncated cone is set as a sealing cap; the bottom of the air-material mixture through hole is a plane and is set as a material blocking table; the plurality of vent holes are formed between a spherical crown arch face of the lower bottom surface of the wind-distribution plate and the air-material mixture through hole; the lower sections of the vent holes are arranged to be inclined upwards in a divergent way, the middle sections of the vent holes are vertically arranged, and the upper sections of the vent holes are horizontally arranged. The ladder-shaped wind beam wind-distribution plate has the advantages of being exquisite in design, long in service life and concentrated in airflow, having gradient change, being free from leakage of ash, and the like.

Description

technical field [0001] The invention relates to an air distribution plate of a circulating fluidized bed gasification furnace, in particular to an air distribution plate with beam-splitting input and cluster output with stepped wind speed, which belongs to a special component of coal gasification equipment. Background technique [0002] The air distribution plate is one of the important parts of the circulating fluidized bed gasifier. It is the bottom plate of the furnace of the gasifier. The upper part is the furnace, and the lower part is connected with the air chamber. The function of the air distribution plate is to support the material in the furnace of the gasifier, and at the same time, the gas or gas-material mixture in the lower air chamber passes through the entire area of ​​the air distribution plate and enters the furnace. People generally adopt a large number of wind caps on one side of the air outlet of the air distribution plate, so that the gas or gas materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/56
CPCC10J3/56C10J2300/09
Inventor 张连华陈柏金叶旺森王季马海军杨鉴峰
Owner ZHONGJUXIN OCEAN ENG EQUIP CO LTD
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