Slag gasifier for pressurized fixed bed

A technology of slag gasification and pressurized gasification, which is applied in the manufacture of combustible gas, petroleum industry, etc., can solve the problems of low effective gas content, high gasifier outlet temperature, and many problems of chilling ring, etc., to achieve effective The effects of high gas content, high comprehensive cost performance, and strong adaptability to coal types

Inactive Publication Date: 2013-12-11
SHANGHAI ZEMAG MINDAC MACHINERY EQUIP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

These two commonly used gasifiers have the following disadvantages: the shell furnace has a complex dry coal powder preparation system, large dust emissions, high investment costs for one-time equipment, high gasifier outlet temperature and too complicated structure, etc., and high oxygen consumption; The Texaco furnace has

Method used

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  • Slag gasifier for pressurized fixed bed
  • Slag gasifier for pressurized fixed bed

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Embodiment Construction

[0058] Embodiments of the present invention will now be described more fully with reference to the accompanying drawings. The following description is merely exemplary in nature and does not limit the invention, its application or uses.

[0059] Such as figure 1 As shown, the pressurized fixed-bed slag gasifier according to the embodiment of the present invention includes a coal lock 1 (two coal locks are shown in the figure), a transition chamber 2, a pressurized gasification vessel 3, a connecting joint 4, Chill chamber 5 and slag lock 6. The coal lock 1 is a storage container located on the upper part of the transition bin 2 for intermittently taking coal from the coal bunker (not shown in the figure) and adding coal to the pressurized gasification container 3 . The transition bin 2 is a "Y"-shaped channel located between the coal lock 1 and the pressurized gasification vessel 3, which promotes the coal in the coal lock 1 to enter the pressurized gasification vessel 3 by ...

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Abstract

The invention relates to a slag gasifier for a pressurized fixed bed. The slag gasifier comprises a coal lock for intermittently taking coal from a bunker and feeding the coal into a pressurized gasifier container, a transition bin enabling the coal in the coal lock to be fed in the pressurized gasifier container conveniently, the pressurized gasifier container for combusting and gasifying carbon-containing solid fuels at a certain temperature and with certain pressure by virtue of a gasifying agent from a nozzle, a connection pup joint for gasifying operations of slagging, chilling, evacuation and the like, a chilling chamber for chilling and cooling molten slag and a slag lock for storing vitric slag particles and discharging the vitric slag particles to the outside by a cone valve. An operation method of the slag gasifier comprises the steps of adjusting the temperature of a raw gas outlet, gasifying carbon-containing solid fuels, adjusting the gasifying load of the gasifier, controlling the operation pressure of the gasifier, controlling the pressure difference between the connection pup joint and the gasifier, slag discharge of a slag discharging port and slag support operations, chilling and cooling molten slag, controlling water quantity of the chilling chamber to remove heat of the molten slag, storing slag particles and discharging the slag particles to the outside.

Description

technical field [0001] The invention relates to a fixed-bed gasifier, and more particularly to a pressurized fixed-bed slag gasifier and an operation method of the pressurized fixed-bed slag gasifier. Background technique [0002] At present, the representative pressurized fixed-bed gasifier at home and abroad is the Lurgi furnace. The Lurgi furnace is a kind of equipment for pressurized coal gasification. Below the softening temperature of coal ash, a large amount of steam is injected to control the combustion temperature of oxygen and coal coke below the melting point of coal ash. There are many defects in the Lurgi furnace, such as low operating load of a single furnace, large steam consumption, large amount of waste water, dry ash discharge polluting the environment, low gasification efficiency, and high operating costs. [0003] In addition to the fixed-bed Lurgi furnace, entrained-bed gasifiers such as Shell furnace (represented by dry coal powder furnace) and Texaco ...

Claims

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Application Information

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IPC IPC(8): C10J3/20C10J3/34C10J3/72
Inventor 傅敏燕丁烙勇陆欢庆
Owner SHANGHAI ZEMAG MINDAC MACHINERY EQUIP
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