Synthetic ammonia gas producing system

Abstract

The invention provides a synthetic ammonia gas producing system which comprises a coal gas generation furnace, an upward-blowing cyclone deduster, a waste heat boiler, a gas washing box, a first tailgas treater and a second tail gas treater. A first gas outlet of the coal gas generation furnace is connected with a gas inlet of the upward-blowing cyclone deduster through a pipeline A2, a gas outlet of the upward-blocking cyclone deduster is connected with a gas inlet of the waste gas boiler, a gas outlet of the waste heat boiler is connected with a gas inlet of the gas washing box through a pipeline B4, and a gas outlet of the waste heat boiler is connected with the first tail gas treater and the second tail gas treater through a pipeline A4; the second tail gas treater comprises a first U-shaped pipe and a second chimney in sequential communication, a cyclone plate demister and a spraying component are mounted inside the second chimney, and a diversion pipe leading to the bottom of the second chimney is arranged on the inner wall of the second chimney; blown air after being treated is emptied to the sky, so that no environment pollution is caused.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a synthetic ammonia gas generation system. Background technique [0002] The gas-making gas furnace adopts a six-step intermittent fixed layer gas production technology of 1, blowing, 2, recycling 3, up blowing 4, down blowing 5, secondary up blowing 6, and blowing. The blowing gas in the blowing stage is sent during normal production. Blow back combustion recovers sensible heat and latent heat, and the gas stage sends gas to the gas cabinet. But at present, the gas in the blowing stage of the gas furnace can only be vented from the chimney valve of each gas furnace DN600 when the emergency situation of blowing back is stopped. Because the blowing air directly pollutes the environment, the air released by the blowing air is thick and black with a large amount of dust, which will be directly discharged into the atmosphere and cause environmental pollution. Because the e...

AI Technical Summary

Problems solved by technology

But at present, the gas in the blowing stage of the gas furnace can only be vented from the chimney valve of DN600 of each gas furnace when the gas furnace is shut down in an emergency situation.

Because the blowing air directly pollutes the environment, the air released by the blowing air is thick and black with a large amount of dust, which will be directly discharged into the atmosphere and cause environmental pollution. Because the environmental protection is not up to standard, technological transformation must be carried out. In order to control this pollution, it is necessary to develop A synthetic ammonia gas generation system that can deal with the problem of high pollution in the initial stage of start-up or in the stage of blowing gas recovery and maintenance

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