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Pyrolysis furnace with wear-resistant radiation pipes

A pyrolysis furnace and radiant tube technology, applied in the field of pyrolysis furnaces, can solve the problems of weakening wear, affecting the normal operation of the device, wear and other problems, and achieve the effects of prolonging the service life, ensuring safe and normal operation, and extending the operating cycle

Pending Publication Date: 2018-04-13
北京恒丰亚业科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above methods have certain effects, none of them can fundamentally weaken the wear and have an anti-wear effect. When the device has been in operation for a period of time, wear behavior will still occur, affecting the normal operation of the device

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035]The triangular tube cap is welded on the radiant tube through a rectangular sheet, and the radiant tube is arranged in a vertical square pyrolysis furnace, so that the horizontal and vertical distances between two radiant tubes are the same. in:

[0036] The height of the vertical square regenerative fast pyrolysis furnace is 12 m, the top is a rectangle of 1.4*3.0 m, the bottom is a rectangle of 0.5*3 m, and 55 radiant tubes are arranged inside, and a total of 22 layers are arranged;

[0037] The diameter of the radiant tubes in the vertical square regenerative fast pyrolysis furnace is 200 mm, and the horizontal and vertical distances between two radiant tubes are 410 mm respectively;

[0038] The particle size distribution of pulverized coal particles in the vertical square heat storage pyrolysis furnace is relatively wide, the particle size range is concentrated between 0.18 and 3 mm, and about 50% of the particle size is between 1 and 2 mm;

[0039] The vertical di...

Embodiment 2

[0042] The triangular tube cap is welded on the radiant tube through a rectangular sheet, and the radiant tube is arranged in a vertical square pyrolysis furnace, so that the horizontal and vertical distances between two radiant tubes are the same. in:

[0043] The vertical cylindrical regenerative fast pyrolysis furnace has a height of 30 m and a diameter of 30 m, and 100 radiant tubes are arranged inside, and a total of 10 layers are arranged;

[0044] The diameter of the radiant tubes in the vertical cylindrical regenerative fast pyrolysis furnace is 200 mm, and the horizontal and vertical distances between two radiant tubes are 410 mm respectively;

[0045] The particle size distribution of pulverized coal particles in the vertical cylindrical regenerative pyrolysis furnace is relatively wide, and the particle size range is concentrated between 0.18 and 3 mm, and about 50% of the particles have a particle size between 1 and 2 mm;

[0046] The vertical distance from the to...

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Abstract

The invention relates to a pyrolysis furnace with wear-resistant radiation pipes. The pyrolysis furnace comprises pipe caps, the radiation pipes and a mounting part, and the horizontal and vertical distances between the two radiation pipes arranged in the pyrolysis furnace are identical; each of the pipe caps has a triangular cross section and comprises an arc-shaped plate part and vertical plateparts arranged on the two sides of the arc-shaped plate part; and the vertical plate parts are fixedly connected with the upper part of the corresponding radiation pipe through rectangular sheets, sothat a falling material is prevented from directly impacting the radiation pipe, and the falling-off of the material is facilitated. The pyrolysis furnace provided by the invention has the beneficialeffects that the service lives of the radiation pipes are prolonged, the maintenance expense of the pyrolysis furnace is reduced, the frequency of shutdowns of the pyrolysis furnace is reduced in theoperation process, the potential safety hazards and the economic losses caused by radiation pipe wear are reduced, the safe and normal operation of the regenerative rapid pyrolysis furnace is ensured,and the operation cycle of the pyrolysis furnace is prolonged.

Description

technical field [0001] The invention belongs to the technical field of coal chemical industry, and in particular relates to a pyrolysis furnace with wear-resistant radiation tubes. Background technique [0002] Coal pyrolysis is the initial stage of coal processing, conversion and utilization processes such as coal gasification, liquefaction and combustion, and it is also an extremely important intermediate process. At present, the existing technology is based on the regenerative high-temperature air combustion technology, and the rapid pyrolysis furnace is used to extract artificial petroleum and natural gas resources from low-rank coal raw materials such as lignite and long-flame coal. It can solve the world problem of low-grade coal constitution and resource utilization. However, during the long-term operation of the pyrolysis furnace, the violent downward movement of pulverized coal particles in the pyrolysis furnace may cause serious wear and tear on the radiant tube, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/04C10B47/18
CPCC10B47/18C10B53/04
Inventor 彭丽孟嘉乐张宏伟郑倩倩窦从从肖磊吴道洪
Owner 北京恒丰亚业科技发展有限公司
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