Central oxygen supply water-cooled wall type fixed bed gasifier

A fixed-bed gasifier and water-cooled wall technology, applied in the field of coal gasification, can solve problems such as environmental pollution and overheating of grates

Pending Publication Date: 2018-05-29
北京阳华科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a central oxygen supply water-cooled wall type fixed-be...

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  • Central oxygen supply water-cooled wall type fixed bed gasifier
  • Central oxygen supply water-cooled wall type fixed bed gasifier

Examples

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Embodiment Construction

[0030] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] Such as figure 1 As shown, the central oxygen-supplied water-cooled wall type fixed-bed gasifier includes: a water-cooled wall shell 9, a gas-liquid separator 2, a washing cooler 4, a grate system, a coal lock 1, an ash lock 7, and a graded oxygen supply device.

[0032] Specifically, a gasification combustion chamber 3 is defined inside the water-cooled wall casing 9 , and an upper port and a lower port are respectively opened on the top and bottom of the water-cooled wall casing 9 . The water-cooled wall shell 9 includes: multiple water-cooled tubes and multiple sealing sheets, the water-cooled tubes are in a tubular structure, and the multiple water-cooled tubes are respectively arranged at intervals along the circumference of the gasification combustion chamber 3 . Each water-cooled tube respectively includes: a main body, ...

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Abstract

The invention relates to a central oxygen supply water-cooled wall type fixed bed gasifier. The gasifier comprises a water-cooled wall shell, a gas-liquid separator, a grate system, a coal lock, an ash lock and a stage-by-stage oxygen supplier, wherein the top and bottom of the water-cooled wall shell are respectively provided with an upper end opening and a lower end opening; the gas-liquid separator communicates with the water-cooled wall shell through a pipeline; the grate system comprises a grate and an actuator; the coal lock is mounted at the upper end opening of the water-cooled wall shell; the ash lock is mounted at the lower end opening of the water-cooled wall shell; and the stage-by-stage oxygen supplier comprises a gasifying agent pipeline and a central oxygen supply pipe. Thegasifier disclosed by the invention defines a gasifying combustion chamber by means of the water-cooled wall shell, and brings away heat released by high-temperature and high-pressure coal gas by means of the water-cooled wall shell, preventing the shell from being damaged by ultrahigh temperature, and compared with a water-cooled jacket type shell, the water-cooled wall shell is more convenient to overhaul. By stage-by-stage oxygen supply, the height of a bed layer of a reaction layer can be increased, the proceeding of side reaction is reduced, environmental pollution is reduced, and the risk that a grate overheats is decreased.

Description

technical field [0001] The invention relates to the technical field of coal gasification, in particular to a central oxygen supply water-cooled wall type fixed-bed gasifier. Background technique [0002] In related technologies, the main problems of traditional fixed-bed gasifiers are: the grate is overheated, and the annual operation rate is low; In the water, there are problems such as difficult treatment of gasification sewage. Contents of the invention [0003] The object of the present invention is to provide a central oxygen supply water-cooled wall type fixed-bed gasification furnace, which is used to solve the problem of excessive grate temperature and severe environmental pollution existing in the existing gasification furnace. [0004] In order to achieve the above object, the present invention provides a central oxygen supply water-cooled wall type fixed-bed gasifier, said central oxygen supply water-cooled wall type fixed-bed gasifier comprises: [0005] A wa...

Claims

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Application Information

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IPC IPC(8): C10J3/20C10J3/30C10J3/74
CPCC10J3/20C10J3/30C10J3/74C10J2300/0959C10J2300/093
Inventor 雷玉龙马宏波岳军王帅宋文军
Owner 北京阳华科技有限公司
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