Device and method for gasifying pulverized coal through stratified strong rotation of gasifying agents along furnace height

A technology of gasification device and gasification agent, applied in the direction of granular/powder fuel gasification, etc., can solve the problems of uneven slag hanging on the wall surface of gasifier and uneven temperature distribution, etc.

Inactive Publication Date: 2015-11-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of uneven slag hanging on the wall surface of the gasification furnace and uneven temperature distribution along the furnace height direction in

Method used

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  • Device and method for gasifying pulverized coal through stratified strong rotation of gasifying agents along furnace height
  • Device and method for gasifying pulverized coal through stratified strong rotation of gasifying agents along furnace height
  • Device and method for gasifying pulverized coal through stratified strong rotation of gasifying agents along furnace height

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specific Embodiment approach 1

[0025] Specific implementation mode one: combine Figure 1 to Figure 3 This embodiment is described. A layered strong rotary pulverized coal gasification device along the furnace height gasification agent described in this embodiment includes a pulverized coal burner 1, a gasification furnace body 2, a water wall 4, a syngas channel 5 and multiple A gasification agent nozzle 7, the gasification furnace body 2 is composed of a hemisphere and a cylinder, the water cooling wall 4 is installed in the gasification furnace body 2, the water cooling wall 4 is composed of a plurality of vertical circular tubes, and the water cooling wall 4 is surrounded by The gasification furnace 3 is a revolving body, the bottom of the gasification furnace body 2 is provided with a slag pool 6, the synthesis gas channel 5 is inserted in the lower part of the gasification furnace body 2, and a plurality of gasification agent nozzles 7 are arranged in sequence from top to bottom. On the outer wall of ...

specific Embodiment approach 2

[0026] Specific implementation mode two: combination Figure 1 to Figure 3 To illustrate this embodiment, a swirl vane 9 is provided near the fire end of the pulverized coal channel 10 of the pulverized coal gasification device along the furnace height gasification agent layered strong rotation in this embodiment. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0027] Specific implementation mode three: combination Figure 1 to Figure 3 To illustrate this embodiment, each gasification agent nozzle 7 of a gasification agent layered strong rotary pulverized coal gasification device along the furnace height described in this embodiment is provided with a flow regulating valve 8 . Other components and connections are the same as those in the first embodiment.

[0028] Specific implementation mode four: combination figure 2 To illustrate this embodiment, the multiple gasification agent nozzles 7 of a gasification agent layered strong rotary pulverized coal gasification device along the furnace height in this embodiment refer to two gasification agent nozzles 7 . Other compositions and connections are the same as those in the first, second or third embodiment.

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Abstract

The invention relates to a device and method for gasifying pulverized coal through strong rotation of gasifying agents and in particular relates to a device and method for gasifying pulverized coal through stratified strong rotation of gasifying agents along the furnace height, aiming to solve the problems in the prior art that slag adheres to the walls of gasifiers non-uniformly and temperature distribution along the directions of the furnace heights is non-uniform. The device is characterized in that a water wall is installed in a gasifier body and is formed by a plurality of vertical circular tubes; the water wall forms a rotator gasifier hearth by enclosing; a slag bath is arranged at the bottom of the gasifier body; a synthesis gas channel is inserted in the lower part of the gasifier body; a plurality of gasifying agent nozzles are uniformly formed in the upper outer side wall of the gasifier body from top to bottom in sequence and are in a same vertical plane; each gasifying agent nozzle is inserted in the gasifier hearth along the tangential direction of the gasifier hearth; a pulverized coal burner is installed at the top of the gasifier body; the axis of the pulverized coal burner coincides with that of the gasifier hearth; and a pulverized coal channel with a ring-shaped cross section is arranged in the pulverized coal burner. The device and the method are used in the field of coal gasification.

Description

technical field [0001] The invention relates to a gasification agent strong-rotation pulverized coal gasification device and a gasification method, in particular to a gasification agent layered strong rotation pulverized coal gasification device and gasification method along the furnace height, belonging to the field of coal gasification equipment . Background technique [0002] Coal gasification technology is an efficient and clean clean coal technology. The current coal gasification technology is mainly divided into four categories: moving bed gasification, fluidized bed gasification, entrained flow gasification and molten bed gasification. [0003] Among them, entrained bed gasification technology has become the main development direction of coal gasification technology due to its advantages of high gasification intensity, large production capacity and high carbon conversion rate. Entrained bed gasification has two main features. One is the high operating temperature, a...

Claims

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Application Information

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IPC IPC(8): C10J3/48C10J3/50
Inventor 陈智超曾令艳李争起王浩鹏蒋炳坤刘晓英朱群益
Owner HARBIN INST OF TECH
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