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Multifunctional fixed bed gasification furnace gas making device and gas making process

A technology for a gasifier and a fixed bed, which is applied in the field of a gas-making device and a gas-making process for a fixed-bed multi-purpose gasifier, can solve the problem of increasing the consumption of raw coal, the failure of the oxygen-enriched gas-making to work normally, and restricting the production of the fixed-bed gas-making furnace. Air volume etc.

Active Publication Date: 2013-12-18
HENAN XINLIANXIN FERTILIZER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the fixed bed batch gasifier is the mainstream technology of nitrogen fertilizer production enterprises in my country. The gasifier generally adopts the batch gasification process using air as the gasification agent. The gasification process needs to generate a certain amount of The venting or burning of blowing air seriously restricts the gas generation capacity of the fixed bed gas furnace, and also increases the consumption of raw coal
Although the use of oxygen-enriched continuous gas production can better solve the above problems, the oxygen-enriched gas production cannot work normally after the air separation oxygen plant fails and stops. At the same time, due to cost factors, enterprises often use briquettes and various types switch between anthracite lump coal

Method used

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  • Multifunctional fixed bed gasification furnace gas making device and gas making process
  • Multifunctional fixed bed gasification furnace gas making device and gas making process
  • Multifunctional fixed bed gasification furnace gas making device and gas making process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] When the ordinary air intermittent gas production mode is required, press the ordinary air intermittent gas production mode button 15, the program-controlled valve is controlled by the DCS microcomputer control system 19, and the ordinary air intermittent gas production mode is started. The ordinary air intermittent gas production mode includes two The second blowing stage, the blowing stage, the blowing stage, the blowing stage and the blowing stage;

[0055] a. The second blowing stage: through the DCS microcomputer control system 19, the fourth program-controlled valve 4, the thirteenth program-controlled valve 13, the sixth program-controlled valve 6, the fourteenth program-controlled valve 14, the ninth program-controlled valve 9, and the eleventh program-controlled valve The program-controlled valve 11 and the twelfth program-controlled valve 12 are opened, and the steam with a pressure of 54KPa enters the bottom of the gasifier 20 through the fourth program-contro...

Embodiment 2

[0061] When the oxygen-enriched intermittent gas production mode is required, press the oxygen-enriched intermittent gas production mode button 16 to control the program-controlled valve through the DCS microcomputer control system 19 to start the oxygen-enriched intermittent gas production mode. The oxygen-enriched intermittent gas production mode includes Oxygen secondary blowing stage, oxygen-enriched blowing stage, oxygen-enriched blowing stage, oxygen-enriched upward blowing stage and oxygen-enriched blowing stage;

[0062] a. Oxygen-enriched secondary blowing stage: through the DCS microcomputer control system 19, the fourth program-controlled valve 4, the thirteenth program-controlled valve 13, the sixth program-controlled valve 6, the fourteenth program-controlled valve 14, the ninth program-controlled valve 9, the The eleventh program-controlled valve 11 and the twelfth program-controlled valve 12 are opened, and the steam with a pressure of 54KPa enters the gasifier 2...

Embodiment 3

[0068] When the oxygen-enriched continuous gas production mode is required, press the oxygen-enriched continuous gas production mode button 17 to control the program-controlled valve through the DCS microcomputer control system 19 to start the oxygen-enriched continuous gas production mode. The oxygen-enriched continuous gas production mode includes Oxygen continuous upward blowing stage;

[0069] a. Oxygen-enriched continuous upward blowing stage: DCS microcomputer control system 19 controls the first program-controlled valve 1, the second program-controlled valve 2, the third program-controlled valve 3, the fourth program-controlled valve 4, the fifth program-controlled valve 5, and the fourteenth program-controlled valve 14. The ninth program-controlled valve 9, the eleventh program-controlled valve 11 and the twelfth program-controlled valve 12 are opened, the air with a pressure of 45KPa enters the buffer tank 21 through the second program-controlled valve 2, and the oxyge...

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Abstract

The invention belongs to the technical field of gas making of fixed bed gasification furnaces, and specifically relates to a multifunctional fixed bed gasification furnace gas making device and a gas making process. The multifunctional fixed bed gasification furnace gas making device comprises a gasification furnace the top of which is provided with a coal inlet and slag holes which are respectively arranged on the two sides of the bottom of the gasification furnace, wherein an oxygen pipeline is connected with the inlet of a buffer tank through a first program control valve, the outlet of the buffer tank is sequentially connected with a third program control valve, a fourteenth program control valve and the bottom of the gasification furnace through a pipeline; a first tee joint is arranged on the pipeline arranged between the fourteenth program control valve and the bottom of the gasification furnace, a third end of the first tee joint is sequentially communicated with an eighth program control valve and a twelfth program control valve through the pipeline, and the twelfth program control valve is communicated with a gas cabinet. The multifunctional fixed bed gasification furnace gas making device and the gas making process provided by the invention have the advantages that the raw material coal adaptability is widened, the consumption of raw material coal is reduced, a resource is saved, the gas yield of a single furnace is improved, the cost is reduced, the multifunctional fixed bed gasification furnace gas making device is free from the influence of a space division gas making fault, the operation is simple and convenient, the multifunctional fixed bed gasification furnace gas making device is stable and safe, and the enterprise competitive power is improved.

Description

technical field [0001] The invention belongs to the technical field of gas production by a fixed bed gasifier, and in particular relates to a gas production device and a gas production process for a fixed bed multipurpose gasification furnace. Background technique [0002] At present, the fixed bed batch gasifier is the mainstream technology of nitrogen fertilizer production enterprises in my country. The gasifier generally adopts the batch gasification process using air as the gasification agent. The gasification process needs to generate a certain amount of The venting or burning of the blowing air seriously restricts the gas generation capacity of the fixed bed gas furnace, and also increases the consumption of raw coal. Although the use of oxygen-enriched continuous gas production can better solve the above problems, the oxygen-enriched gas production cannot work normally after the air separation oxygen plant fails and stops. At the same time, due to cost factors, enterpr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/20
Inventor 顾朝晖王洪营宋仁委杨悦敬杨国洞徐严伟崔增涛宋肖盼
Owner HENAN XINLIANXIN FERTILIZER
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