Explosion-proof device on smelting furnace

Abstract

The invention discloses an explosion-proof device on a smelting furnace. The explosion-proof device comprises a furnace body of the smelting furnace. A pressure relief hole is formed in the furnace body. An explosion-proof pipe communicated with the pressure relief hole is formed on the outer wall of the furnace body. A retaining ring is fixedly inserted into the lower end of the explosion-proof pipe. An explosion-proof cover is inserted in the explosion-proof pipe. The lower end surface of the explosion-proof cover is pressed against the retaining ring. The outer wall of the explosion-proof cover is pressed against the inner wall of the explosion-proof pipe. A guide column is formed in the center of the upper end surface of the explosion-proof cover. A positioning disc is fixedly insertedinto the portion, on the upper side of the guide column, in the explosion-proof pipe. A guide hole is formed in the center of the positioning disc. The guide column of the explosion-proof cover is inserted into the guide hole of the positioning disc. A magnet ring is fixed on the portion, around the guide column, of the upper end face of the explosion-proof cover, electromagnets opposite to the magnet ring are fixed on the upper end face of the positioning disc, and the electromagnets and the magnet ring repel each other. A proximity switch sensor opposite to the guide column is fixedly inserted into the portion, at the upper side of the positioning disc, of the explosion-proof pipe. By the adoption of the explosion-proof device on the smelting furnace, the explosion-proof cover can be automatically closed after explosion-proof pressure relief.

Description

Technical field: [0001] The invention relates to the technical field of smelting furnaces, in particular to an explosion-proof device on the smelting furnace. Background technique: [0002] The explosion-proof device of the smelting furnace is usually an opening on the pipe, and an explosion-proof cover is installed at the opening. When the pressure in the furnace is too high, the explosion-proof cover is opened to protect it. After the pressure in the furnace is normal, the manual operation makes the explosion-proof cover close. However, this kind of explosion-proof device cannot automatically reset and close after the explosion-proof cover is opened, and must be completed manually. operation, so it is necessary to solve these problems. Invention content: [0003] The object of the present invention is to provide an explosion-proof device on a smelting furnace aimed at the deficiencies of the prior art, which can automatically realize the closing of the explosion-proof c...

AI Technical Summary

Problems solved by technology

[0002] The explosion-proof device of the smelting furnace is usually an opening on the pipe, and an explosion-proof cover is installed at the opening. When the pressure in the furnace is too high, the explosion-proof cover is opened to protect it. After the pressure in the furnace is normal, the manual operation makes the explosion-proof cover close. However, this kind of explosion-proof device cannot automatically reset and close after the explosion-proof cover is opened, and must be completed manually. operation, so it is necessary to solve these problems

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