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U-shaped coal gasification reaction device used for secondarily separating and deslagging and coal gasification process implementing secondary separating and deslagging by using device

A secondary separation and reaction device technology, applied in the field of coal gasification process, can solve the problems of low energy utilization rate, large amount of fly ash generated, high carbon content of fly ash, etc., to prolong residence time, strengthen slagging ability, expand The effect of gasification reaction space

Inactive Publication Date: 2017-07-28
HARBIN INST OF TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problems of large amount of fly ash generated, high carbon content in fly ash, low carbon conversion rate and low energy utilization rate in the existing entrained flow gasifier, and provides a U-shaped coal gas with secondary separation and slag removal Chemical reaction device and coal gasification process using the device for secondary separation and slag removal

Method used

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  • U-shaped coal gasification reaction device used for secondarily separating and deslagging and coal gasification process implementing secondary separating and deslagging by using device
  • U-shaped coal gasification reaction device used for secondarily separating and deslagging and coal gasification process implementing secondary separating and deslagging by using device
  • U-shaped coal gasification reaction device used for secondarily separating and deslagging and coal gasification process implementing secondary separating and deslagging by using device

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specific Embodiment approach 1

[0036] Specific implementation mode one: combine Figure 1 to Figure 9 Describe this embodiment, a U-shaped coal gasification reaction device for secondary separation and slag removal in this embodiment is composed of a gasification furnace body 4, a horizontal flue 8 and a waste pot 1; the gasification furnace body 4 is composed of a gasification furnace body Composed of burner 3, gasification furnace 5, water wall pipe 6, cooling water pipe 14 and slag pool 9; the waste pot 1 is composed of radiation heat exchange chamber, convection heat exchange chamber, intermediate furnace wall and synthesis gas outlet 11; The gasification furnace body 4 is provided with a gasification furnace 5, the gasification furnace 5 is surrounded by water-cooled wall tubes 6, and the upper part of the gasification furnace body 4 is provided with a gasification furnace burner 3. Furnace burner 3 is connected with gasification furnace 5, and the bottom of said gasification furnace body 4 is provided...

specific Embodiment approach 2

[0037] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that: the lateral gap L between adjacent cooling water pipes 14 in the slag remover 10 is not less than 100 mm, and the longitudinal pitch d is not less than 1 / 4 of the diameter of the cooling water pipes 14 2.5 times. Such setting is convenient to enhance the slagging ability of the gasifier, further reduce the amount of fly ash generated, and at the same time avoid slagging of the slagging device. Others are the same as the first embodiment.

specific Embodiment approach 3

[0038] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the material of the cooling water pipe 14 is the same as that of the water wall pipe 6 . Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a U-shaped coal gasification reaction device used for secondarily separating and deslagging and a coal gasification process implementing secondary separating and deslagging by using the device, and solves the problems of high production of flue dust, high content of unburned carbon in flue dust, low carbon conversion rate and low energy utilization ratio of the existing entrained flow gasifier. The U-shaped coal gasification reaction device used for secondarily separating and deslagging comprises a gasification furnace body, a horizontal flue and a waste kettle; the gasification furnace body comprises a gasification furnace nozzle, a gasification furnace hearth, a water wall tube, a cooling water pipe and a slag basin; the waste kettle is partitioned by a middle furnace wall into a radiation heat transfer chamber and a heat convection chamber; and the gasification furnace body, the horizontal flue and a secondary gasification chamber form a U-shaped coal gasification reaction region. The U-shaped coal gasification reaction device is used for coal gasification.

Description

technical field [0001] The invention relates to a U-shaped coal gasification reaction device for secondary separation and slag removal and a coal gasification process using the device for secondary separation and slag removal. Background technique [0002] my country is the world's largest coal producer and consumer. At present, coal accounts for about 70% of my country's primary energy consumption structure, and more than half of the coal is used in the form of direct combustion. The resulting coal-burning pollutants are harmful to the ecological environment. caused serious pollution. Coal gasification technology is one of the most important clean coal technologies. Coal gasification technology can be used to produce industrial fuel gas, civil fuel gas, chemical synthesis raw material gas, synthetic fuel oil raw material gas, hydrogen fuel cells, synthetic natural gas, rocket fuel, etc. At present, the main coal gasification technologies include moving bed fixed bed gasific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/52C10J3/72
CPCC10J3/526C10J3/721C10J2300/093
Inventor 陈智超王浩鹏高禄山李争起曾令艳何涛
Owner HARBIN INST OF TECH
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