Semi water gas generating system

Abstract

The invention relates to a semi water gas generating system comprising a gas stove connected with a steam pipe and an air inlet pipe. A single system is formed by a plurality of gas stoves; one ascending pipe of the gas stove is communicated with a blowing main pipe by a blowing return-air valve; the blowing main pipe is communicated with a blowing main pipe dust collector; the other ascending pipe of the gas stove is merged with a descending gas pipeline by an ascending gas valve and then enters a single system gas main pipe by a gas main valve; and the single system gas main pipe is communicated a gas main pipe dust collector. The invention reduces the shared passages of ascending gas and blowing gas in a process so as to prevent a great amount of blowing gas remained in the shared passages from entering the gas system in the transfer process from gas stove blowing to gas preparation; and unavoidable blowing gas in the shared passages in the flow can be used as adjustable gas which can be sent to the blowing gas system or the gas system by a delay or underlay measure as required. The invention increases effective gas components in the gas and increases the adjustment range of circulating hydrogen in the production system.

Description

technical field [0001] The invention relates to a semi-water gas generation system in the field of atmospheric pressure fixed bed intermittent coal gasification technology in the coal chemical industry. Background technique [0002] In the field of atmospheric fixed bed intermittent coal gasification, the "one furnace, one device" device is generally used, that is, one gas furnace is equipped with one dust collector to remove dust from blown gas and semi-water gas. The process is that the blowing gas from the gas furnace blowing or the upward gas from the gas production enters the dust collector through the upward pipe, and then passes through the recovery valve of the blowing gas or the upstream gas valve and the main coal valve respectively. The disadvantage is that when the gas furnace is turned from blowing to upward blowing, a large amount of blowing gas accumulated in the gas furnace's upstream pipe and dust collector enters the gas system, reducing the quality of semi...

AI Technical Summary

Problems solved by technology

The disadvantage is that when the gas furnace is turned from blowing to upward blowing, a large amount of blowing gas accumulated in the gas furnace's upstream pipe and dust collector enters the gas system, reducing the quality of semi-water gas per unit time; for synthetic ammonia alcohol production devices (especially those with relatively high ammonia alcohol ratio) device) is unfavorable, increasing compressor power consumption and reducing system production efficiency

Images