Dismounting device for tuyere small sleeve of blast furnace

By designing a small blast furnace air outlet removal device including a winch, traction rope, handheld sleeve, movable claw, disassembly head, spring and pin, the problem of frequent damage to the small air outlet in the blast furnace and unsafe traditional disassembly method is solved, a fast and safe disassembly process is achieved, and production efficiency is improved.

CN222644456UActive Publication Date: 2025-03-21HEBEI IRON AND STEEL
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Patent Information

Application Number
CN202421228791.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-31
Publication Date
2025-03-21
Estimated Expiration
2034-05-31

AI Technical Summary

Technical Problem

The small air vent sleeve is frequently damaged due to high temperature and slag iron erosion when used in blast furnaces. The traditional disassembly method requires a lot of manpower and is unsafe, resulting in long replacement time and low production efficiency.

Method used

A blast furnace air outlet small sleeve removal device is designed, including a winch, traction rope, handheld sleeve, movable claw, disassembly head, spring and pin shaft. The tensile force is provided through the winch, and the movable claw is cooperated with the spring to quickly remove the air outlet small sleeve.

Benefits of technology

The rapid disassembly of the small air vent cover is achieved, which reduces labor intensity, improves production efficiency, and ensures the safety and reliability of the replacement process.

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Abstract

The utility model relates to a blast furnace tuyere small sleeve dismounting device, and belongs to the technical field of blast furnace ironmaking production equipment in the metallurgical industry. According to the technical scheme, the device comprises a winch (1), a pulling rope (2), a handheld sleeve (3), movable claws (5), a dismounting head (6), a spring (7) and a pin shaft (10), one end of the dismounting head (6) is connected with the handheld sleeve (3), the other end of the dismounting head (6) is rotationally connected with the two movable claws (5) through the pin shaft (10), and the two movable claws (5) are connected through the spring (7); one end of the traction rope (2) is connected with the dismounting head (6), and the other end of the traction rope (2) is connected to the winch (1); the dismounting head (6) is in a cylindrical shape matched with the handheld sleeve (3), one end of the dismounting head (6) is in threaded connection with the handheld sleeve (3), and the other end of the dismounting head (6) is in a conical shape. The device has the beneficial effects that the tuyere small sleeve can be quickly disassembled, the labor intensity is reduced, and the production efficiency is improved.
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