Dry quenching furnace bracket repairing method

A CDQ coke oven and repair method technology, applied in the repair field, can solve problems such as insufficient stability of corbel bricks, short service life of corbels, large gaps in corbel bricks, etc., to prolong service life, reduce repair times, and stabilize the structure Effect

Inactive Publication Date: 2015-11-18
PANGANG GRP PANZHIHUA STEEL & VANADIUM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the corbel bricks at the corbel repaired by the traditional method have larger gaps, and the corbel bricks are not stable enough, and will be damaged after a short period of use, resulting in a shorter service life of the repaired corbels

Method used

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  • Dry quenching furnace bracket repairing method
  • Dry quenching furnace bracket repairing method

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing.

[0023] The CDQ coke oven corbel restoration method comprises the following steps:

[0024] a. After supporting the inner ring brick ring beam 1 of the CDQ coke oven, remove the damaged corbel brick in the corbel 3 to be repaired; in this step, the inner ring brick ring beam 1 is usually supported by the steel column 5 and pulled by hand The gourd 6 lifts and fixes the steel column 5, so as to avoid the collapse of the inner ring brick after removing the damaged corbel brick, such as figure 1 As shown; the way of setting steel columns 5 is to set a plurality of steel columns 5 at the bottom of the inner ring brick ring beam 1 of the CDQ coke oven according to the predetermined interval along the circumferential direction of the CDQ coke oven, and the top of each steel column 5 is connected with the corbel 3 The top of each steel column 5 is flush with each other, and each s...

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Abstract

The invention discloses a dry quenching furnace bracket repairing method capable of prolonging service life of a repaired bracket. The method comprises following steps: a, damaged bracket bricks in a to-be-repaired bracket are dismantled after an inner ring brick ring beam of a dry quenching furnace is supported; b, at least two holes are drilled in a joint surface constructed by the bracket bricks and exposed after the damaged bracket bricks are dismantled, a heat resistant steel nail is drilled into each hole, and the length of the heat resistant steel nail exposed out of the joint surface is 80-120 mm; c, the joint surface is cleaned up and is coated once with an adhesion agent; d, a formwork is supported on the outer surface of the bracket according to the outline size of the original bracket, and a bracket brick mold is jointly defined by the formwork, the joint surface and the other complete bracket bricks; e, castable and the adhesion agent are mixed in a specific ratio and are poured into the bracket brick mold for tamping; f, maintenance is performed for a period of time, so that the castable is completely condensed; the formwork is dismantled after the maintenance is finished. The bracket repaired with the method is firmer in structure, is free of mortar joints and has longer service life.

Description

technical field [0001] The invention relates to a repair method, in particular to a repair method for CDQ coke oven corbels. Background technique [0002] The CDQ coke oven includes a cone, a pre-storage chamber, an annular air duct surrounding the pre-storage chamber and communicating with the pre-storage chamber, a middle bolt hole, an inclined air duct and a cooling chamber, and the upper annular air duct and the lower cooling chamber pass through the middle chute The area is connected, and multiple corbels made of multiple corbel bricks are evenly distributed along the inner peripheral direction of the ramp area to support the inner ring bricks of the CDQ oven and divide the ramp area into multiple independent ramps . During the operation of the CDQ coke oven, the corbels in the chute area of ​​the CDQ coke oven are easily worn, cracked, and even collapsed due to the long-term scour of the high-temperature coke in the CDQ coke oven and the high-temperature circulating a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B39/02
Inventor 邓永强王俭华罗治秋刘潘
Owner PANGANG GRP PANZHIHUA STEEL & VANADIUM
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