A co-direction multi-shaft coal gasification device

Abstract

The invention relates to a synclastic multi-shaft gasification device. The gasification device comprises a feed mechanism, a gasification mechanism and a washing mechanism, wherein the gasification mechanism comprises a gasification furnace consisting of a gasification chamber and a shock chamber; a plurality of burners communicated with the feed mechanism are uniformly arranged on the top of the gasification chamber, and a conical outlet extending into the shock chamber is formed in the bottom of the gasification chamber; a coal gas outlet is formed in the upper part of the shock chamber, and chilled water with a certain liquid level is filled in the lower part of the shock chamber; a chilling ring and a down pipe are sequentially arranged in the lower part of the conical outlet of the gasification chamber; a plurality of water outlets with a certain tilting angle are uniformly formed in the periphery of the upper edge of the inner ring wall of the chilling ring; the outlet end of the down pipe extends below the liquid surface of the shock chamber; the washing mechanism comprises a washing tower which is communicated with the coal gas outlet of the shock chamber through a washer, the water outlet of the washing tower is respectively communicated with the washer and the chilling ring through a chilling water pump. The synclastic multi-shaft gasification device solves the problems of low pulping concentration, crown brick erosion, poor coal slurry atomization effect, uneven flow field of gasification furnace and the like in the prior art.

Description

technical field

[0001] The invention relates to a coal gasification device, in particular to a co-direction multi-axis coal gasification device. Background technique

[0002] At present, coal gasification technology is divided according to the form of gasifier, and there are three main categories: fixed bed, fluidized bed and entrained bed. Fixed bed gasification has high requirements for raw materials (lump coal is required), low production pressure, and certain environmental pollution problems; although fluidized bed gasification has a large number, there are also certain problems in engineering, and the environmental pollution is relatively large ; Entrained bed gasification is currently mainly used in the coal chemical sector. The main feature of entrained bed is that the raw materials are easy to obtain, using bituminous coal powder, and the raw material price is low. The most important thing is that its production pressure is high and the production intensity is high. ...

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