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Pulverized coal gasification control method and pulverized coal gasification device

A control method and technology of coal gasification, applied in the direction of granular/powder fuel gasification, gasification process, manufacture of combustible gas, etc., can solve the hidden dangers caused by increased consumption, consumption of fuel gas and oxygen, and multi-burner oxygen flow balance and other problems to achieve the effect of prolonging the service life, avoiding the waste of energy and ensuring the stability

Active Publication Date: 2017-06-30
山东明泉新材料科技有限公司
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Problems solved by technology

[0003] However, this gasification process also has many deficiencies: the oxygen flow rate of multiple process burners is regulated by an oxygen regulating valve, which buries hidden dangers for the oxygen flow balance of multiple burners in the design; In the main pulverized coal delivery system, the pulverized coal pipeline is very prone to fluctuations, but in this case, the gasifier must be interlocked for shutdown; the start-up burner is still running after the process burner is put in, and fuel gas will be consumed during the process. and oxygen, increasing consumption

Method used

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Embodiment

[0032] 【Gasification device】

[0033] as attached figure 1 , 2 As shown, the pulverized coal gasification device of the present invention includes a furnace body 1 , a start-up burner 2 and three process burners 3 . Both the starting burner 2 and the process burner 3 are arranged vertically on the top of the furnace body 1 . The start-up burner 2 is assembled in the center position of the furnace body 1 top. The three process burners 3 are evenly distributed around the starting burner 2 .

[0034] as attached image 3 As shown, each process burner 3 passes through its own pulverized coal branch pipeline 4, gasification agent branch pipeline (including oxygen branch pipeline 5 and steam branch pipeline 6) and pulverized coal main pipe 7, oxygen main pipe 8 and Steam main pipe 9 is connected.

[0035] The layout method of the control valves on the pulverized coal branch pipeline 4, the oxygen branch pipeline 5 and the steam branch pipeline 6 is the same as that on the corr...

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Abstract

The invention discloses a pulverized coal gasification control method and a pulverized coal gasification device, and belongs to the field of pulverized coal gasification. The method and the device are characterized in that each process burner is provided with a gasification agent branch pipeline and a pulverized coal branch pipeline; the gasification agent branch pipeline is composed of an oxygen branch pipeline and a steam branch pipeline; through adjustment of the gasification agent flow quantity of the gasification agent branch pipeline and the pulverized coal flow quantity of the pulverized coal branch pipeline, the ratio of the gasification agent flow quantity to the pulverized coal flow quantity in each process burner is allowed to be in an appropriate range. Compared with the prior art, the pulverized coal gasification control method and the pulverized coal gasification device can make oxygen load of the burners consistent, better protect start-up burners and the process burners, and prevents stopping of a gasification device caused by fluctuation of a pulverized coal quantity pipeline.

Description

technical field [0001] The invention relates to the field of pulverized coal gasification, in particular to a pulverized coal gasification control method and a pulverized coal gasification device. Background technique [0002] The coal gasification process is a process in which coal or coal char reacts with gasification agents (oxygen and water vapor, etc.) to generate clean gas fuels such as carbon oxides, hydrogen, and methane. It is recognized as the core technology and leader of modern coal chemical processes technology, and the gasifier is the core of the coal gasification process technology. Entrained bed gasification technology is a coal gasification process widely used on a large scale at present, and its core gasifier adopts the single burner top-down injection technology in the early stage, but its coal gasification scale and gasification efficiency are limited. The multi-burner entrained bed technology has appeared, that is, the multi-burner is vertically arrange...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/72
CPCC10J3/485C10J3/723C10J2300/093C10J2300/0976C10J2300/0959
Inventor 孙志田李光任冰涛高发坤
Owner 山东明泉新材料科技有限公司
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