Method for cooling and deashing synthesis gas of gasification furnace and gasification furnace

Abstract

According to the method for cooling and deashing the synthesis gas of the gasification furnace and the gasification furnace, the baffle plate and the synthesis gas outlet pipeline can be effectively prevented from being blocked by accumulated dust based on the gasification furnace and the method for cooling and deashing the synthesis gas, and the synthesis gas can be effectively cooled and dedusted. The gasification furnace comprises a combustion chamber and a chilling chamber located below the combustion chamber, a slag opening is formed in the bottom of the combustion chamber, the combustion chamber is communicated with the chilling chamber through the slag opening, a downcomer is arranged below the slag opening, a chilling ring is arranged between the slag opening and the top end of the downcomer, the downcomer is sleeved with an ascending pipe, and the ascending pipe is connected with the chilling ring. The synthesis gas cooling and ash removing assembly is arranged in the chilling chamber and comprises a baffle plate, an inner ring water distributor and an outer ring water distributor.

Description

technical field [0001] The invention belongs to the technical field of coal chemical industry, and particularly relates to a method for cooling and removing ash from a gasifier synthesis gas and a gasifier. Background technique [0002] Coal-water slurry gasification technology is an important gasification technology in the coal chemical industry. In actual operation, due to insufficient washing of the syngas in the water bath at the lower part of the chilling chamber, high syngas temperature, baffles and synthetic gas often occur. The problem of fouling and blockage of the gas outlet pipe. In the end, the gasifier was forced to shut down, which had a serious adverse impact on the stable operation of the gasification unit. [0003] The existing technology generally alleviates the problems of rising syngas temperature, blockage of baffles and syngas outlets by adjusting the gap between the descending pipe and the ascending pipe, increasing the amount of chilled water, etc. ...

AI Technical Summary

Problems solved by technology

In the end, the gasifier was forced to shut down, causing serious adverse effects on the stable operation of the gasification unit

[0003] In the prior art, the temperature rise of the syngas, the blockage of the baffle plate and the outlet of the syngas are generally alleviated by adjusting the gap between the downcomer and the upcomer, and increasing the amount of quenching water. Higher, it is still impossible to avoid the problem of ash in the synthesis gas, and it is difficult to solve the problems of high temperature of the synthesis gas, blockage of the baffle plate and the outlet of the synthesis gas

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