Quick leak stop method for water seal tank of dry quenching furnace

A technology of dry quenching coke oven and water sealing tank, used in coke oven, coke cooling, petroleum industry and other directions, can solve the problems of construction danger, large production impact, poor effect, etc. The effect of simple process

Active Publication Date: 2014-05-14
PANGANG GRP PANZHIHUA STEEL & VANADIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, welding repair technology is mainly adopted in China for the leakage of CDQ coke oven water seal tank, but this method is dangerous in construction, poor in effect, and has a great impact on production

Method used

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Embodiment Construction

[0013] The present invention will be further described below in combination with specific embodiments.

[0014] The method for rapid leakage control of the water sealing tank of CDQ coke oven includes the following steps:

[0015] a. Make preparations before leakage control; preparations before leakage control include adjusting the material level of the CDQ coke oven to a low level, adjusting the pressure of the pre-storage chamber of the CDQ coke oven to negative pressure, so that the CDQ coke oven will not be charged with coke for 30 ~60 minutes;

[0016] b. Close the water valve and compressed air valve of the water seal tank;

[0017] c. Confirm the exact location of the leakage point of the water seal tank;

[0018] d. Clean up the material covering the leakage point of the water seal tank in the water seal tank;

[0019] e. Slowly pour the castable to the leakage point, slowly stir the castable and tamp the castable to the leakage point of the water seal tank, the cas...

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PUM

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Abstract

The invention discloses a quick leak stop method for a water seal tank of a dry quenching furnace, relates to the field of dry quenching furnace overhauling and provides a quick leak stop method for a water seal tank of a dry quenching furnace, which has a good leak stop effect. The quick leak stop method for a water seal tank of a dry quenching furnace comprises the following steps: after preparing for the leak repairing work, slowly pouring the castable to the leak point, slowly stirring the castable and tamping the castable to the leak point of the water seal tank; and after the castable is combined with water in the water seal tank, sintering so that the castable is firmly combined with the water seal tank to block the leak point, wherein the addition of the castable can be stopped when the water seal tank stops leaking or the leak is slight. The castable comprises the following components: 42-45wt% of SiO2, 52-55wt% of Al2O3 and 1-2.5wt% of Fe2O3; and the particle size of the castable is 0-1mm. The method disclosed by the invention is simple in process; the combination effect between the castable and the water seal tank is good even at a high temperature, the combination strength is good and wear, vibration and stripping resistance, firmness and durability are achieved; and in leak repairing, the dry quenching furnace does not need to be cooled to a cold state, and the influence on the production of the dry quenching furnace is little.

Description

technical field [0001] The invention relates to the field of dry quenching coke oven maintenance, in particular to a method for rapid leakage control of a dry quenching coke oven water seal tank. Background technique [0002] As a new coke quenching method, CDQ is used in coking enterprises due to its advantages of energy saving, environmental protection and improvement of coke quality. The CDQ coke oven is well sealed with the outside world through the water seal tank, so that the heat of the circulating gas is absorbed by the boiler as much as possible, and at the same time, it is ensured that the heat in the CDQ oven will not escape and scald the equipment and operators. Once the water seal tank leaks, a large amount of circulating water will leak into the CDQ furnace, and quickly react with the coke in the CDQ furnace to produce a large amount of explosive gas CO, H2, which seriously threatens the life of the CDQ furnace. Water leaked onto the masonry causing refractory...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B39/02
Inventor 孙兵宋斌王又魁张赟
Owner PANGANG GRP PANZHIHUA STEEL & VANADIUM
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