Multi-nozzle entrained-flow bed gasification furnace

A gasifier and entrained bed technology, which is applied in the field of multi-nozzle entrained bed gasifiers, can solve the problems of unreliable operation, burn-through of downcomers, and high investment costs, and achieves improved residence time, improved stability and reliability, and improved stability and reliability. The effect of simplifying the device structure

Active Publication Date: 2014-11-12
SHANGHAI BOILER WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high investment cost, unreliable operation, easy slagging and burn-through of the downcomer due to high-temperature syngas entraining a large amount of ash in the waste heat boiler, and provide a stable and reliable operation that is easy to enlarge Enlarged, environmentally friendly and energy-saving multi-nozzle entrained-bed gasifier

Method used

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  • Multi-nozzle entrained-flow bed gasification furnace

Examples

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Effect test

Embodiment 1

[0044] A set of dry coal powder pressurized multi-nozzle entrained flow gasifier with a daily processing capacity of 3,000 tons of coal. The inner diameter of the shell of the gasification reaction chamber (that is, the wall 2 of the gasifier) ​​is 3850mm, and the inner diameter of the lower slag port of the gasifier is 4 1100mm. A layer of four side process burners 16 is evenly arranged on the upper side of the gasification furnace body. The plane of the side process burners is perpendicular to the axis of the gasification reaction chamber, and the radial deflection angle θ is 4.5°. The four side process burners 16 A total of 100% pulverized coal, 100% water vapor and 100% pure oxygen are injected, and the top burner chamber 11b is used as an ignition / start-up burner.

[0045] The cylinder diameter of the syngas quenching conversion chamber is 4800 mm. There is one layer of quenching ring 14. 128 quenching nozzles 13 are evenly arranged along the quenching ring 14. Liquid wat...

Embodiment 2

[0073] A set of coal-water slurry pressurized multi-nozzle entrained gasifier with a daily processing capacity of 3000 tons of coal. The inner diameter of the gasifier body (namely the gasifier wall 2) is 4000mm, and the inner diameter of the lower slag port 4 of the gasifier is 1000mm. A layer of four side process burners 16 is evenly arranged on the upper side of the gasification furnace body. The plane of the side process burners is perpendicular to the axis of the gasification reaction chamber, and the radial deflection angle θ is 1.8°. The four side process burners 16 100% coal water slurry and 100% pure oxygen are injected into the process burner in the top burner chamber 11b.

[0074] The cylinder diameter of the syngas quenching conversion chamber is 4800 mm. The quenching ring 14 is provided with a layer. The quenching nozzles 13 are evenly arranged along the quenching ring 14. There are 128 layers. The included angle λ is 30°, the second included angle α of radial in...

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Abstract

The invention discloses a multi-nozzle entrained-flow bed gasification furnace which is characterized by comprising a gasification furnace body, wherein a chilling conversion chamber is arranged below the gasification furnace body; a washing residue removal chamber is arranged below the chilling conversion chamber; the gasification furnace body, the chilling conversion chamber and the washing residue removal chamber are coaxially arranged; a burner chamber and a technological burner chamber are arranged in the gasification furnace body; and a chilling ring is arranged in the chilling conversion chamber. The multi-nozzle entrained-flow bed gasification furnace disclosed by the invention has the characteristics of stable and reliable operation, easiness in large-scale amplification, environmental friendliness, energy saving and the like.

Description

technical field [0001] The invention relates to a multi-nozzle entrained-bed gasification furnace, which belongs to the technical field of energy clean utilization. Background technique [0002] The gasification process is a thermochemical process of carbonaceous substances. Gasification technology usually uses carbon-containing solid fuel powder such as coal or its liquid fuel as raw materials, and uses oxygen and water vapor as gasification agents. After being sprayed into the gasifier through the burner, it takes place under high temperature and high pressure conditions The gasification reaction produces high-temperature and high-pressure syngas (or called coal gas) and slag. Syngas needs to be treated by cooling, purification and other processes before it is put into use. The ash generated after the input fuel is gasified also needs cooling treatment before it can be discharged from the gasifier. [0003] Said gasification technology, wherein the entrained bed gasific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/48C10J3/50C10J3/84
CPCY02P20/10
Inventor 倪建军池国镇熊杰
Owner SHANGHAI BOILER WORKS
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