Coke oven drying process

An oven process and coke oven technology are applied in coke ovens, preheating coke ovens, heating of coke ovens, etc., which can solve the problems of cracking of refractory bricks, loose cutting seams, unreasonable temperature control, etc., to avoid the furnace body damage, promote longevity, simple and practical effect

Active Publication Date: 2014-04-23
攀钢集团西昌钢钒有限公司
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  • Description
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AI Technical Summary

Problems solved by technology

However, due to unreasonable temperature control during the coke oven baking process, coke oven masonry refractory bricks will crack and slit

Method used

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Embodiment Construction

[0014] Hereinafter, the coke oven baking process of the present invention will be described in detail with reference to exemplary embodiments.

[0015] In an exemplary embodiment of the present invention, the coke oven baking process includes the following steps: when the temperature of the coke oven is lower than 800-850°C, using combustion gas or solid-liquid fuel in the coking chamber as a heat source, passing through the coke oven The heat transfer of the furnace body and the oven hole installed on the top of the coke oven will transfer the heat evenly to the coke oven masonry; when the temperature of the coke oven reaches 800-850 ℃, use the coke oven gas system in the basement to heat, Among them, in the process of using the coke oven gas system in the basement for heating, the gas pressure in the branch pipe in the basement is controlled to be not less than 500Pa (preferably, the gas pressure is 510-600Pa), and every time the coke oven gas system in the basement is connec...

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PUM

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Abstract

The invention provides a coke oven drying process. The coke oven drying process comprises the following steps: under the condition that the temperature of a coke oven is lower than 800-850 DEG C, combusting gas in a carbonizing room, and uniformly heating a coke oven masonry through heat transfer; under the condition that the temperature of the coke oven reaches 800-850 DEG C, performing heating for 10-15 days through a basement coke oven coal gas system to enable the temperature of the coke oven to slowly rise to 1000-1070 DEG C, wherein the pressure of coal gas in a basement branch pipe is controlled to be not smaller than 500Pa; after the coal gas of the basement coke oven coal gas system is switched on for 7-8min at each time, switching off the coal gas of the basement coke oven coal gas system for 60-70s; cyclically performing the switch-on step and the switch-off step in sequence. The coke oven drying process has the advantages that the operation is simple and practical; the cost input is eliminated or low; the oven drying temperature can be effectively controlled to slowly rise; the damage to an oven body caused by sudden rise and drop of the oven temperature due to interrupted heating is avoided; life prolonging of the coke oven can be promoted.

Description

technical field [0001] The invention belongs to the technical field of coke oven ovens, and in particular relates to a coke oven oven process capable of avoiding deterioration phenomena such as cracks and slit slack in coke oven masonry during the oven oven process. Background technique [0002] Usually, in order to remove a large amount of moisture in the coke oven masonry, raise the temperature of the furnace wall of the carbonization chamber to a temperature suitable for coal charging, and ensure the uniform expansion of the masonry during the heating process, the new coke oven must be baked. However, due to unreasonable temperature control during the coke oven baking process, coke oven masonry refractory bricks will crack and slit loose due to rapid temperature changes, which will seriously affect the tightness of the coke oven and the service life of the furnace body. [0003] Therefore, there is an urgent need for a method for effectively controlling the temperature of...

Claims

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Application Information

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IPC IPC(8): C10B17/00
Inventor 彭志辉张少春
Owner 攀钢集团西昌钢钒有限公司
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