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Method for baking dry quenching furnace

A technology of CDQ coke oven and oven method, which is applied in coke oven, coke cooling, petroleum industry, etc. It can solve the problems that cannot meet the particle size requirements of the oven insulation layer material, so as to improve efficiency and reduce operation process Effect

Inactive Publication Date: 2010-06-23
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cannot meet the particle size requirements of the oven insulation layer material

Method used

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  • Method for baking dry quenching furnace
  • Method for baking dry quenching furnace

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Experimental program
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Embodiment

[0026] The CDQ furnace that present embodiment bakes is 150t / h, see figure 1 . This CDQ furnace oven method embodiment is the following steps in sequence:

[0027] A handful of coke 15 with a particle size of 40-80mm is filled into the coke discharge port 14, the lower cone 13, the cross air duct and the upper cone 9 of the CDQ furnace, and the air cap 16 is covered;

[0028] 2. Cover the coke 15 with a silica layer 18 made of silica, the particle size of the silica is 30-50mm, and the thickness is 300mm;

[0029] Three burners 6 extend into the cooling section 5 in the CDQ furnace from the manhole 8. What this embodiment uses is a gas burner. The burner 6 is lit to bake the inside of the CDQ oven, and the temperature of the CDQ oven is baked. Bake to 800°C;

[0030] 4. After the baking reaches the requirements, the temperature in the CDQ furnace reaches 800° C., and the burner 6 is taken out to seal the manhole 8 .

[0031] During baking, a thermocouple, such as thermocou...

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Abstract

The invention relates to a method for baking a dry quenching furnace. The method comprises the following steps in turn: firstly, filling coke with the grain diameter of between 25 and 80 millimeters to the lower part of the dry quenching furnace, covering a hood, and protecting facilities such as the hood and the like by using the filled coke; secondly, covering a grain heat insulation protective layer with the grain diameter of between 30 and 50 millimeters and the thickness of between 250 and 350 millimeters on the coke; thirdly, stretching a burner to a cooling section in the dry quenching furnace, and igniting the burner which is generally a gas burner to bake the inside of the dry quenching furnace, and baking the dry quenching furnace till the fed red coke is converted to the temperature condition for normal production; and finally, after the baking meets the requirement, taking the burner out. The method is characterized in that the heat insulation protective layer is a silica layer with the grain diameter of between 30 and 50 millimeters. The method for baking the dry quenching furnace prevents a refractory material in furnace baking heat insulation materials from entering a blast furnace to influence the operation of the blast furnace.

Description

technical field [0001] The invention relates to a drying method for dry quenching coke ovens. Background technique: [0002] Before the CDQ furnace of the coking plant is put into production, it is necessary to carry out the oven operation. On the one hand, the refractory material in the furnace is dried, and on the other hand, the temperature of the furnace body is increased to match the temperature when the red coke is loaded into the normal production. Because the burner hole of the oven is higher than the coke mouth of the CDQ grate, there is a level difference of about 2 meters, and there are facilities such as hoods in between. The lower part of the oven needs to be filled with coke in advance to protect the hoods and other facilities. The final temperature of the oven must reach 800°C, and the ignition point of coke is generally 700°C. In order to prevent the filled coke in the furnace from being ignited during the oven, it is necessary to cover the upper part of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B39/02
Inventor 刘中秋张春亮
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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