A special tool for replacing the 175t-rh sealing section air bag and its replacement method

Abstract

The invention relates to a special tool for 175T-RH sealing section air bag replacement and a replacement method. The special tool comprises a fixed handle, a left movable handle, pin shafts, a left side clamping plate, a right movable handle and a right side clamping plate; the left movable handle and the right movable handle are hinged to the fixed handle through the pin shafts correspondingly;and the left side clamping plate and the right side clamping plate are arranged at the end part of the left movable handle and the end part of the right movable handle correspondingly. During the replacement, a worker holds the fixed handle with the both hands and holds the left movable handle and the right movable handle with the rest four fingers, except for the thumb, of each hand simultaneously till the left side clamping plate and the right side clamping plate clamp a sealing air bag correspondingly, and the worker upwards / downwards uplifts / presses down the sealing air bag with the both hands with effort, then the sealing air bag can be taken out / mounted. The special tool and the replacement method have the beneficial effects that manual work of people is replaced with the special tool, on-line replacement of the sealing air bag can be realized, the replacement time is shortened, the labor intensity of the worker is lowered, the equipment utilization efficiency is improved, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a disassembly and assembly equipment in the technical field of metallurgical equipment, in particular to a special tool for replacing a 175T-RH sealing section airbag and a replacement method. Background technique [0002] The sealing section of the 175T-RH vacuum treatment top gun in the third work area of ​​a steelmaking general plant is installed above the vacuum chamber furnace. The internal temperature of the vacuum furnace is about 1200°C. It is in a vacuum negative pressure state, so the sealing between the top gun and the sealing section is realized by a sealing air bag during production. The sealed airbag is a vulnerable part. After a period of use, due to wear, aging, damage and other reasons, it needs to be replaced with a new one, and the frequency of replacement is relatively high. When replacing the sealed airbag, the top gun needs to be lifted out of the sealing section. At this time, the high-temperature heat w...

AI Technical Summary

Problems solved by technology

[0003] 1) The labor intensity is high, and it is cumbersome to move the online vacuum chamber to the standby position and wait for the operation to end before moving it back;

[0004] 2) There is no special equipment. When replacing, the operator manually puts his hand into the sealing section for construction, and there is a danger of burning;

[0005] 3) The replacement time is long, and it takes 30-40 minutes for the vacuum chamber to move from the online position to the standby position and then move back to the online position;

[0006] 4) The production efficiency is low. Since the sealed airbag is a vulnerable part, the frequency of replacement is high. Therefore, it takes a lot of production time to replace the sealed airbag

Images