Ash agglomeration gasification reaction device

Abstract

The invention discloses an improved ash agglomeration gasification reaction device comprising an ash agglomeration gasification system comprising a feeding nozzle, a conic gas distributing plate, a gasifying agent air inlet, a double-inlet-chamber air inlet device and the like, and a deslagging and cooling system comprising a slag gathering chamber, a slag discharging tank, a water cooling jacket, a gas inlet and the like. According to the improved ash agglomeration gasification reaction device disclosed by the invention, a center pipe structure which generates slag and is burnt up easily in the ash agglomeration gasification reaction device is saved, the air inlet device of the ash agglomeration gasification reaction device is improved, and the deslagging and cooling system is optimized to facilitate control of deslagging and cooling of ash slag. The gasification reaction device is simple in structure, can run stably for a long time and is higher in gasification efficiency.

Description

[0001] Technical field: [0002] The patent of the invention belongs to the field of coal gasification, and specifically relates to an ash fusion gasification reaction device. [0003] Background technique: [0004] The ash fusion powder coal gasification process uses the principle of fluidization to continuously feed the raw powder coal into the dense phase area of ​​the gasification reaction device, and the gasification agent (pure oxygen, carbon dioxide and steam) is blown in from the bottom of the gasification reaction device to make the coal Particle boiling fluidization. Under the high temperature conditions generated by combustion, the gas-solid two-phase is fully mixed and contacted, and the pyrolysis of coal and the redox reaction of carbon occur, and finally the gasification of coal is realized. The feature of this process is that the high-oxygen oxidizing agent and steam enter the central area of ​​the bed through the center pipe, forming a local high-temperature...

AI Technical Summary

Problems solved by technology

However, as far as the current exhaust method is concerned, if the gas velocity is too high, it is easy to form channel flow; if the gas velocity is too low, it is easy to leak material or the high temperature area cannot reach the proper high temperature.

Moreover, the center pipe is exposed in the slag discharge channel, which is more likely to stick to dirt and slag and burn, and it is more likely to cause poor slag discharge, etc.

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