Online roller replacing and overhauling technology of fan-shaped segment of continuous casting machine

A technology of continuous casting machine fan-shaped section and fan-shaped section, applied in the field of metallurgical continuous casting, can solve the problems of cost loss, lubricating pipeline, cooling water pipeline blockage, roller inability to rotate, etc., so as to reduce labor intensity, reduce maintenance time, reduce The effect of thermal downtime

Active Publication Date: 2013-05-29
WUYANG IRON & STEEL +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] At present, due to the high temperature of the operating environment of the fan section, the large amount of impurities in the cooling water, the blockage of the lubrication pipeline and the cooling water pipeline, etc., the single roller bearing seat is bulging and leaking, the seal is carbonized, and the bearing is damaged, which eventually leads to the failure of the roller to rotate, thus affecting the casting. The surface quality of the slab, in se

Method used

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Embodiment Construction

[0021] The present invention will be further described below through embodiment.

[0022] An on-line roll change maintenance process for continuous casting machine segments, the entire segment is divided into 1#-16# segments sequentially; for the outer arc rollers of the 1#-7# segments and the inner , Outer arc rollers are replaced and repaired online respectively;

[0023] (1) The online replacement and maintenance process of the outer arc rollers of the 1#~7# sector is as follows:

[0024] ① Use the crane to drop the steel wire rope from the mouth of the crystallizer to the replaced roller, and use the steel wire rope to fix the roller in the roll gap of the fan section;

[0025] ② Loosen the fixing bolts;

[0026] ③ The maintenance personnel enter between the upper and lower frames of the fan-shaped section, use the crowbar to adjust the position of the roller, and use the crane to slowly lift the roller out of the casting machine from the pouring port;

[0027] ④ After ...

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Abstract

The invention relates to online roller replacing and overhauling technology of a fan-shaped segment of a continuous casting machine and belongs to the technical field of metallurgy continuous casting technology. The online roller replacing and overhauling technology of the fan-shaped segment of the continuous casting machine is characterized in that the whole fan-shaped segment is sequentially sectioned into 16 sections (from the first section to the sixteenth section). Outer arc rollers of sections from the first section till the seventh section and inner and outer arc rollers of sections from the eighth section to the sixteenth section respectively undergo online replacing and overhauling. The online roller replacing and overhauling technology of the fan-shaped segment of the continuous casting machine has the advantages that a single roller undergoes online replacing and overhauling, the phenomenon that a complete fan-shaped segment is off line due to failure in reaching a period is avoided, labor intensity is reduced, overhauling staff is reduced, maintenance cost is saved and overhauling time and warm shutdown time are reduced.

Description

technical field [0001] The invention relates to an on-line roll changing maintenance process for a continuous casting machine segment, belonging to the technical field of metallurgical continuous casting. Background technique [0002] At present, due to the high temperature of the operating environment of the fan section, the large amount of impurities in the cooling water, the blockage of the lubrication pipeline and the cooling water pipeline, etc., the single roller bearing seat is bulging and leaking, the seal is carbonized, and the bearing is damaged, which eventually leads to the failure of the roller to rotate, thus affecting the casting. The surface quality of the slab will deteriorate, and even cause the entire casting machine to stagnate in severe cases. BACKGROUND OF THE INVENTION In view of this problem, the method of offline replacement of the segment is adopted, and the segment is disassembled offline to deal with the failure of the roller. However, because the...

Claims

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Application Information

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IPC IPC(8): B22D11/128
Inventor 董晓涛夏晓伟张磊磊
Owner WUYANG IRON & STEEL
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