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Moving bed pure-oxygen gasifier

A technology of gasification furnace and moving bed, which is applied in the field of coal gasification, can solve the problems of poor environmental protection indicators and low energy utilization rate of gasification furnace, and achieve the effects of prolonging residence time, maximizing heat recovery benefits, and increasing specific surface area

Pending Publication Date: 2020-04-03
HENAN JUNHUA DEV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a moving bed pure oxygen gasifier for the current situation of low energy utilization rate and poor environmental protection index of the existing gasifier

Method used

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  • Moving bed pure-oxygen gasifier
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Embodiment Construction

[0020] The technical solution of the present invention will be further described in detail below in conjunction with specific examples, but the content of the present invention is not limited thereto. For the experimental methods not indicated in the following examples, the specific conditions are generally in accordance with conventional conditions, or in accordance with the conditions suggested by the manufacturer.

[0021] A moving bed pure oxygen oxidation furnace, such as Figure 1-2 As shown, the furnace body 1 is included, the top of the furnace body 1 is an adiabatic structure, the top of the furnace body 1 is fixed with an automatic coal stoker 2 and an automatic coke detector 3, and the two sides of the top of the furnace body 1 are respectively provided with inspection holes 4 and water gas outlet 5, the bottom of the furnace body 1 is fixed with a furnace bottom assembly, the bottom of the furnace bottom assembly is provided with a gasification agent inlet 6 and an...

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Abstract

The invention belongs to the technical field of coal gasification, and especially relates to a moving bed pure-oxygen gasifier. The gasifier comprises a furnace body, the top of the furnace body is ofa heat insulation structure, an automatic stoker and an automatic coke detector are fixedly arranged at the top of the furnace body, an inspection hole and a water gas outlet are respectively formedin two sides of the top of the furnace body, a furnace bottom assembly is fixedly arranged at the bottom of the furnace body, a gasifying agent inlet and an ash box are arranged at the bottom of the furnace bottom assembly, the barrel section of the furnace body is of a water-cooled wall structure, the full water-cooled wall structure is of a non-uniform-pressure double-section water-cooled wall structure, by means of the non-uniform-pressure double-section water-cooled wall, steam of any grade below 2.5 MPa can be produced as a byproduct, and the heat recovery benefit is maximized.

Description

technical field [0001] The invention belongs to the technical field of coal gasification, and in particular relates to a moving bed pure oxygen gasification furnace. Background technique [0002] The structure of the existing fixed-bed batch gasifier is that the upper section is an adiabatic section, and the lower section is a water-cooled wall section. This gasifier structure makes the operation flexibility of the gasifier smaller, the coal conversion efficiency is low, and the steam decomposition rate is low. During the conversion process of coal in the gasifier, a lot of waste water is produced, and the effective gas content in the coal gas produced after coal conversion is low (<70%), and the residual carbon content in the gasified coal slag produced is high (>15 %), low energy utilization. It is imminent to develop a clean and environment-friendly gasifier with high energy utilization rate and no discharge of three wastes. Contents of the invention [0003] Th...

Claims

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Application Information

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IPC IPC(8): C10J3/20C10J3/72C10J3/76C10J3/80
CPCC10J3/20C10J3/72C10J3/723C10J3/76C10J3/80C10J2300/0959C10J2300/1687Y02P20/10
Inventor 汤广斌刘旭王恩伟李冬安连杰张景华
Owner HENAN JUNHUA DEV