"Oxygen in water " strong swirl pulverized coal gasifier to prevent burning loss of furnace wall

A gasification furnace, water-in-oxygen technology, applied in the field of coal gasification, can solve the problems of gasification furnace shutdown, economic loss, production line shutdown, etc., and achieve the effect of lower temperature, low temperature and long service life

Inactive Publication Date: 2016-12-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that the inner wall surface of the gasification furnace near the area where the gasification agent is injected into the furnace body in the prior art is easy to be burned.
After the occurrence of this problem, the gasifier will be shut down frequently, and the entire production line will be shut down, resulting in huge economic losses. In order to provide a "water-in-oxygen" strong rotary pulverized coal gasifier that prevents furnace wall from burning

Method used

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  • "Oxygen in water " strong swirl pulverized coal gasifier to prevent burning loss of furnace wall
  • "Oxygen in water " strong swirl pulverized coal gasifier to prevent burning loss of furnace wall

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specific Embodiment approach 1

[0008] Specific implementation mode one: combine Figure 1-Figure 2 To illustrate this embodiment, the "oxygen in water" strong rotary pulverized coal gasifier described in this embodiment to prevent furnace wall burnout includes a pulverized coal burner 1, a gasifier body 2, a water wall 4, and a synthetic gas Channel pipe 5, swirl blade 9, multiple water vapor nozzle pipes 7 and multiple oxygen nozzle pipes 7-1, water cooling wall 4 is composed of multiple vertical circular pipes arranged side by side, and water cooling wall 4 is installed on gasification furnace body 2 Inside, the gasification furnace 3 is a revolving body surrounded by water-cooled walls, the bottom of the gasification furnace body 2 is provided with a slag pool 6, and the top of the gasification furnace body 2 is provided with a pulverized coal burner 1, and a pulverized coal burner 1 There is a pulverized coal channel 10 and a water vapor and oxygen mixed gas channel 11 inside, the water vapor and oxygen...

specific Embodiment approach 2

[0009] Specific implementation mode two: combination figure 1 Describe this embodiment, the "oxygen in water" strong rotary pulverized coal gasification furnace described in this embodiment to prevent the furnace wall from burning, the radius of the gasification furnace 3 is r, the value of M is 0.7r, and the value of L is the same as r is equal. In order to maximize the intensity of the swirling flow field in the furnace, make the water vapor flow down close to the furnace wall, effectively protect the water-cooled wall surface, and the other components and connections are the same as the first embodiment.

specific Embodiment approach 3

[0010] Specific implementation mode three: combination figure 1 Describe this embodiment, the "oxygen in water" strong rotary pulverized coal gasifier described in this embodiment to prevent furnace wall from burning, it also includes a plurality of water vapor flow regulating valves 8 and a plurality of oxygen flow regulating valves 8- 1. A steam flow regulating valve 8 is installed on each steam nozzle pipe 7, and an oxygen flow regulating valve 8-1 is installed on each oxygen nozzle pipe 7-1. The water vapor flow in the water vapor nozzle pipe 7 is controlled by the water vapor flow regulating valve 8, and the oxygen flow in the oxygen nozzle pipe 7-1 is controlled by the oxygen flow regulating valve 8-1. Other components and connections are the same as those in the second embodiment.

[0011] working principle

[0012] Oxygen and water vapor enter the water vapor and oxygen mixture gas channel 11 in the pulverized coal burner 1, flow through the swirl blade 9, and then r...

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Abstract

The invention relates to a pulverized coal gasification furnace, and provides an " oxygen in water " strong swirl pulverized coal gasifier to prevent burning loss of furnace wall. The invention solves the problems that the area near the spraying spot of a furnace gasification agent of a gasification furnace wall surface is easy to be burnt in the prior art. The problem causes shut-down of the gasifier and the outage of an entire production line, resulting in huge economic losses. The gasifier includes a pulverized coal burner, a gasification furnace, a water cooling wall, a synthetic gas channel pipe, a swirl vane, a plurality of water steam nozzle tubes and a plurality of oxygen nozzle tubes. The water cooling wall comprises a plurality of vertical circular pipes side by side, and is arranged inside the gasifier; the top of the gasification furnace is provided with the pulverized coal burner; the pulverized coal burner is provided with a pulverized coal channel and a water vapor and oxygen mixed gas channel; the water vapor and oxygen mixed gas channel is in the pulverized coal channel; the swirl vane is arranged in the pulverized coal burner. The invention belongs to the field of coal gasification.

Description

technical field [0001] The invention relates to a pulverized coal gasification furnace, in particular to an "oxygen in water" strong rotating pulverized coal gasification furnace which prevents furnace wall from burning, and belongs to the field of coal gasification. Background technique [0002] Coal gasification technology is an efficient and clean clean coal technology. Gasification agent strong rotary pulverized coal gasification technology has the advantages of high gasification intensity, large production capacity, high carbon conversion rate, and strong applicability of coal types. It has already emerged in the field of coal gasification. In order to solve the problems of uneven slag hanging on the inner wall of the gasifier and unstable ignition in the existing pulverized coal gasification technology, the applicant applied for a series of Chinese invention patents related to the gasification agent strong rotation pulverized coal gasification technology in the early s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/76
CPCC10J3/487C10J3/76C10J2200/152C10J2300/093C10J2300/0959C10J2300/0976
Inventor 陈智超王浩鹏乔大成何额尔敦木图曾令艳李争起
Owner HARBIN INST OF TECH
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