Temperature adjusting method for treating coal cake collapse and coal charging dead corner

A technology for temperature regulation and briquettes, which is applied in the heating of coke ovens, petroleum industry, and combustible gas heating coke ovens, etc. It can solve the problems of decreased production stability of coke ovens, difficulty in operation, and decreased coke quality, so as to prevent high-temperature accidents. and furnace door burning loss, ensuring coke quality, simple and practical operation

Inactive Publication Date: 2012-06-27
PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the disadvantages of coke pushing difficulties, coke quality decline, coke oven production stability decline, and coke oven service life shortening caused by the above-mentioned coal cake collapse and coal charging missing corners, various methods have been adopted in the prior art, such as Put regulating bricks in the vertical fire passage of the combustion chamber corresponding to the collapsed coalification chamber or design a small partition wall for the furnace head in the regenerator.
However, these methods have disadvantages such as high cost, difficult operation, harsh operating environment, and poor precise control.

Method used

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  • Temperature adjusting method for treating coal cake collapse and coal charging dead corner
  • Temperature adjusting method for treating coal cake collapse and coal charging dead corner

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Embodiment Construction

[0016] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0017] According to the prior art, the method of controlling the temperature in the furnace body that has been adopted is to control the temperature in the furnace body by adjusting the gas flow rate entering the furnace body. However, how and when gas flow is adjusted is critical.

[0018] Therefore, the inventors of the present invention conducted extensive studies and experiments. Through the research, it is found that in the early stage of coal charging, because the temperature of the coal cake is low and it is in a large amount of heat-absorbing stage, if the gas consumption is reduced prematurely, the corresponding carbonization room temperature will be too low, which will lead to insufficient coke maturity and affect the coke quality; Reducing the gas consumption too late will lead to high temperature and excessive coke. Accordi...

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Abstract

The invention provides a temperature adjusting method for treating coal cake collapse in a tamping coke oven and a coal charging dead corner in a top-charging coke oven. The method comprises the steps of adjusting coal gas amount entering an oven body in an early stage of coking time, and reducing coal gas supply amount; and recovering the coal gas supply amount in the tail stage of the coking time. The temperature adjusting method is simple and practical in operation, is little in cost investment, can effectively avoid high temperature accidents, coke firing and burning of an oven door, ensures coke quality, prolongs service life of the coke oven, reduces coking cost and improves stability of coke oven production.

Description

technical field [0001] The invention relates to a temperature adjustment method for dealing with the collapse of coal cakes in tamping coke ovens and the lack of coal charging in top-loading coke ovens. High temperature accidents, coke overfire and furnace door burning caused by missing corners of coal charging. Background technique [0002] With the shortage of coking coal resources and even the reduction of all coal resources, more and more domestic coking enterprises have begun to adopt tamping coking. Judging from the tamping coke ovens that have been put into operation, coal cake collapse accidents will occur in these tamping coke ovens. If there is no effective treatment method after the collapse of rammed coke oven briquettes, the coke in the carbonization chamber will be overheated, it will be difficult to push the coke, and the furnace door will be burned. Furnace production stability and coke oven longevity. [0003] In top-charging coke ovens, when there is a se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B21/10
Inventor 张少春彭志辉
Owner PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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