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Liquid state deslagging and graded gasifying reaction furnace of constant pressure fixed bed of water cooling wall

A technology of liquid slag discharge and gasification reaction, applied in gasification process, manufacture of combustible gas, petroleum industry, etc., can solve the problems of molten slag level control and difficulty in slag discharge, and improve space utilization and energy utilization efficiency , the effect of reducing energy consumption and improving conversion efficiency

Inactive Publication Date: 2017-04-26
中国东方电气集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Aiming at the defects and deficiencies in the solid-state slagging and liquid-state slagging technologies in the existing fixed-bed gasification gasification technology, the present invention provides a water-cooled wall normal-pressure fixed-bed liquid-state slagging graded gasification reaction furnace, which can improve pyrolysis gas The gasification reaction temperature and fuel conversion rate solve the problem of difficult slag level control and slag discharge in the gasifier of the crushed coal pressurized liquid slag discharge technology

Method used

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  • Liquid state deslagging and graded gasifying reaction furnace of constant pressure fixed bed of water cooling wall
  • Liquid state deslagging and graded gasifying reaction furnace of constant pressure fixed bed of water cooling wall
  • Liquid state deslagging and graded gasifying reaction furnace of constant pressure fixed bed of water cooling wall

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Embodiment 1

[0053] A water-cooled wall atmospheric pressure fixed bed liquid slagging graded gasification reaction furnace, comprising an upper furnace body 1, a middle furnace body 2 and a lower furnace body 3, forming a three-stage furnace structure; the top of the upper furnace body 1 is provided with The feed port 4 is provided with a synthesis gas outlet 5 on the side, and the side of the lower furnace body 3 is provided with a slagging outlet; The furnace body insulation layer 7 and the upper furnace body steel plate shell 8, the furnace wall of the middle furnace body 2 is the middle furnace body water-cooled wall layer 9, the middle furnace body refractory material layer 10, and the middle furnace body insulation layer 11 from the inside to the outside. And the steel plate shell 12 of the middle furnace body, the furnace wall of the lower furnace body 3 is successively composed of a refractory protective lining layer 13, a water-cooled wall layer 14 of the lower furnace body, a ref...

Embodiment 2

[0055] A water-cooled wall atmospheric pressure fixed bed liquid slagging graded gasification reaction furnace, comprising an upper furnace body 1, a middle furnace body 2 and a lower furnace body 3, forming a three-stage furnace structure; the top of the upper furnace body 1 is provided with The feed port 4 is provided with a synthesis gas outlet 5 on the side, and the side of the lower furnace body 3 is provided with a slagging outlet; The furnace body insulation layer 7 and the upper furnace body steel plate shell 8, the furnace wall of the middle furnace body 2 is the middle furnace body water-cooled wall layer 9, the middle furnace body refractory material layer 10, and the middle furnace body insulation layer 11 from the inside to the outside. And the steel plate shell 12 of the middle furnace body, the furnace wall of the lower furnace body 3 is successively composed of a refractory protective lining layer 13, a water-cooled wall layer 14 of the lower furnace body, a ref...

Embodiment 3

[0058] A water-cooled wall atmospheric pressure fixed bed liquid slagging graded gasification reaction furnace, comprising an upper furnace body 1, a middle furnace body 2 and a lower furnace body 3, forming a three-stage furnace structure; the top of the upper furnace body 1 is provided with The feed port 4 is provided with a synthesis gas outlet 5 on the side, and the side of the lower furnace body 3 is provided with a slagging outlet; The furnace body insulation layer 7 and the upper furnace body steel plate shell 8, the furnace wall of the middle furnace body 2 is the middle furnace body water-cooled wall layer 9, the middle furnace body refractory material layer 10, and the middle furnace body insulation layer 11 from the inside to the outside. And the steel plate shell 12 of the middle furnace body, the furnace wall of the lower furnace body 3 is successively composed of a refractory protective lining layer 13, a water-cooled wall layer 14 of the lower furnace body, a ref...

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Abstract

The invention relates to a liquid state deslagging and graded gasifying reaction furnace of a constant pressure fixed bed of a water cooling wall and belongs to the technical field of gasifying gas-making devices. The furnace comprises an upper furnace body, a middle furnace body and a lower furnace body which form a three-section hearth structure; a feed inlet is formed in the top of the upper furnace body, a synthesized gas outlet is formed in the side face, and a deslagging port is formed in the side face of the lower furnace body. According to the liquid state deslagging and graded gasifying reaction furnace of the constant pressure fixed bed of the water cooling wall provided by the invention, a top feeding, side exhausting and bottom deslagging structure is adopted, so that ash generated by pyrolysis gasification of carbon-containing substances and unreacted substances and oxygen sprayed by an oxygen nozzle through a gasifying melting chamber combust to generate high-temperature melted slag, so that the pyrolysis gasification reaction temperature is improved and the fuel conversion rate is low, and problems that the liquid level of slag of a gasifying furnace and slag is hard to discharge by virtue of a crushed coal pressurized liquid deslagging technology are solved.

Description

technical field [0001] The invention relates to a carbon-containing solid material gasification gasification device, more specifically, the invention relates to a water-cooled wall atmospheric pressure fixed bed liquid slag discharge graded gasification reaction furnace, which belongs to the technical field of gasification gasification device. Background technique [0002] The existing fixed-bed gasifier mostly adopts the solid-state slagging method. Taking the fixed-bed pure oxygen gasifier as an example, the process flow is to use a fixed-bed gas furnace, use small coke or lump coal as raw materials, and automatically add gas under the coal bunker. Coal machine, automatic timing and quantitative addition to the gasifier, pure oxygen (>99.6%) and water vapor as gasification agent are mixed in the mixing tank through metering and proportion adjustment, and after mixing, they react with hot charcoal in the gas generator (endothermic reaction and exothermic reaction reach e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/20C10J3/72C10J3/74
CPCC10J3/20C10J3/72C10J3/74C10J2300/09
Inventor 张春飞郑西欧王希楚灼夫刘四威徐莹璐万志伟谢斐吴家桦
Owner 中国东方电气集团有限公司
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