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Coal gasification furnace and coal gasification method

A technology of coal gasification and gasification zone, applied in the field of coal gasification, can solve the problem of low carbon conversion rate

Active Publication Date: 2021-07-06
ENN SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the carbon conversion of existing coal gasifiers is low

Method used

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  • Coal gasification furnace and coal gasification method
  • Coal gasification furnace and coal gasification method

Examples

Experimental program
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Effect test

Embodiment 1

[0045] refer to figure 1As shown, this embodiment provides a coal gasification furnace, which includes a furnace body 1, and a conical distribution plate 2 with a large top end and a small bottom end is arranged inside the furnace body 1. The top and bottom here refer to the top and bottom of the conical distribution plate 2 when the coal gasifier is in use. The conical distribution plate 2 divides the inner chamber of the furnace body 1 into a gasification zone 11 and a combustion zone 12 below the gasification zone 11 . Wherein, air distribution holes are opened on the conical distribution plate 2 . Specifically, there may be multiple air distribution holes, and the multiple air distribution holes are arranged at intervals on the conical distribution plate 2 .

[0046] Wherein, the gasification zone 11 has a first feed port 111 through which coal material with a particle size greater than or equal to a predetermined particle size can enter, and a raw gas outlet 113 through...

Embodiment 2

[0077] This embodiment provides a coal gasification method using a coal gasification furnace, which is implemented by all or part of the coal gasification furnace provided in the above embodiment, so as to reduce the carbon content in fly ash and increase the carbon conversion rate.

[0078] refer to figure 1 and figure 2 As shown, the method specifically includes:

[0079] S101. Introduce the gasification agent and the coal material with a particle size greater than or equal to the preset particle size into the gasification zone 11, so that the coal material and the gasification agent with a particle size greater than or equal to the preset particle size are in the gasification zone 11 The gasification reaction occurs, and the solid product produced by the reaction in the gasification zone 11 enters the combustion zone 12 through the feeding pipe 3 .

[0080] S102. Introduce combustion gas and coal material with a particle size smaller than the preset particle size into th...

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Abstract

The invention relates to a coal gasification furnace and a coal gasification method. The coal gasification furnace comprises a furnace body, a conical distribution plate is arranged in the furnace body, and air distribution holes are formed in the conical distribution plate; the conical distribution plate divides the inner cavity of the furnace body into a gasification area and a combustion area positioned below the gasification area; the gasification area is provided with a first feeding port allowing coal with the particle size larger than or equal to the preset particle size to enter, and the furnace body is provided with a first gas inlet used for introducing a gasification agent into the gasification area; the combustion area is provided with a second feed port allowing coal with the particle size smaller than the preset particle size to enter and a second gas inlet allowing combustion gas to enter; and the bottom end of the conical distribution plate is connected with a discharging pipe, the inlet end of the discharging pipe is communicated with the gasification area, and the outlet end of the discharging pipe extends into the combustion area, so that the overall carbon conversion rate is increased, and the gasification efficiency is improved.

Description

technical field [0001] The present disclosure relates to the technical field of coal gasification, in particular to a coal gasification furnace and a method for performing coal gasification. Background technique [0002] Coal gasification technology is an important way to realize the clean and efficient conversion of coal, and the coal gasifier is the main equipment for coal gasification. [0003] The existing coal gasification furnace includes a furnace body, and the inner cavity of the furnace body is formed as a gasification zone. Coal powder and gasification agent enter the gasification zone, and a gasification reaction occurs in the gasification zone, and the crude coal gas produced by the reaction flows from the furnace body The gas outlet is discharged, and the ash is discharged from the slag discharge port at the bottom of the furnace body. [0004] However, the carbon conversion rate of existing coal gasifiers is low. Contents of the invention [0005] In order ...

Claims

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Application Information

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IPC IPC(8): C10J3/48C10J3/46C10J3/84
CPCC10J3/48C10J3/46C10J3/84C10J2300/093C10J2300/0906C10J2300/0976C10J2300/0956C10J2300/1603
Inventor 徐彬曾亮李海冰徐刚李克忠
Owner ENN SCI & TECH DEV