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Cyclone Pulverized Coal Gasifier

A technology of gasification furnace and pulverized coal, which is applied in the gasification of granular/powdered fuel, manufacture of combustible gas, petroleum industry, etc., can solve the problem of high carbon residue, achieve the purpose of promoting reaction, speeding up reaction speed and reducing energy waste Effect

Active Publication Date: 2016-01-20
李晓林
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Other high-temperature gasifiers also have higher residual carbon

Method used

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  • Cyclone Pulverized Coal Gasifier
  • Cyclone Pulverized Coal Gasifier

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Embodiment Construction

[0018] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0019] like Figure 1-Figure 2 As shown in the structure schematic diagram of the present invention, the top nozzle 2 is installed on the top of the body of furnace 1, the top nozzle 2 is connected with the oxygen pipeline 8, the pulverized coal pipeline 9 and the steam pipeline 10 respectively, and the furnace wall nozzle 3 is installed on the upper part of the furnace body 1. On the wall, the furnace wall of the present invention adopts a water-cooled wall, which can cool the furnace wall and prevent the furnace wall from being damaged by high temperature. Refractory materials are hung on the inner side of the water wall, and the slag is bonded to the furnace wall during operation to form a new furnace wall protection layer. The furnace body 1 is cylindrical, and the furnace wall nozzle 3 ring is arranged on the furnace wall of the furn...

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Abstract

The invention discloses a cyclonic pulverized coal gasifier. The cyclonic pulverized coal gasifier comprises a gasifier body, a top nozzle, gasifier wall nozzles, a slag cooling tank, a waste heat boiler, an auxiliary waste heat boiler and a gas storage device, and the gasifier sprays a gas (steam) to the internal of the gasifier through the nozzles, so the gasification intensity of pulverized coal is good, and the reaction is full. Cyclonic current is generated in the gasifier to make slag, impurities and the pulverized coal adhered to the gasifier wall, so the retention time of coal in the gasifier is prolonged, and the reaction of the coal is promoted. The pulverized coal pure oxygen nozzle arranged at the top of the gasifier can substantially improve the reaction temperature in the gasifier, and a tangential gas (steam) blow nozzle arranged at the upper portion of the gasifier body can form strong cyclone to promote the reaction and forms steam curtain to avoid the high temperature ablation of the gasifier wall. Compared with other high temperature gasifiers, the cyclonic pulverized coal gasifier has the advantages of making cost reduction, raw material coal consumption cost reduction, high gasification efficiency and strong practicality.

Description

technical field [0001] The invention relates to the field of coal gasification equipment, in particular to a cyclone pulverized coal gasification furnace. Background technique [0002] Coal gasification refers to the process of making coal react with carbon dioxide and steam to produce gas at a certain temperature. It is an important method for deep processing of coal. Coal is now commonly processed using gasifiers. Many defects are exposed in the application process of the currently used high temperature gasifier. The furnace body of the gasifier has a straight cylindrical structure, and the pulverized coal, carbon dioxide and steam flow in the same direction in the furnace, so the gas disturbance effect is not obvious and the reaction speed is slow. The residual carbon content in the slag is high. The furnace wall of the gasifier is easily ablated by high-temperature flue gas, and the service life is short, so it is difficult to further increase the reaction temperature...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/48C10J3/50C10J3/84
CPCY02P20/129
Inventor 李晓林杨广平
Owner 李晓林
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