Simple dust collector explosion-proof device

Abstract

The invention provides a simple dust collector explosion-proof device. The simple dust collector explosion-proof device comprises a supporting frame, a flange (1), an asbestos board, an explosion-proof film, a flange (2), bolt assemblies, an ejector pin, an ejector pin nut and an ejector pin bracket, wherein the supporting frame is welded on a wallboard of a dust collector; the flange (1) and the flange (2) are folded, the asbestos board and the explosion-proof film are sandwiched between the flange (1) and the flange (2) to be compressed and connected into an integrated body through the bolt assemblies, and the integrated body is welded on the supporting frame; the ejector pin bracket is welded and fixed on the flange (2), a threaded hole is formed in the ejector pin bracket, and the overall length of the ejector pin bracket is equal to the widths or lengths of the flange (1) and the flange (2); an external thread is arranged at the end of the ejector pin, the ejector pin is directly screwed into the threaded hole of the ejector pin bracket, and when the ejector pin touches the explosion-proof film, the ejector pin nut is screwed to firmly fix the ejector pin. During working, when the concentration of pulverized coal in the dust collector reaches the explosion limit of the pulverized coal, the internal pressure of the dust collector is instantly increased, the explosion-proof film is protruded outwards under the action of the pressure, the ejector pin punctures the explosion-proof film immediately, and the pressure in the dust collector is released, so that a body of the dust collector is effectively protected.

Description

technical field [0001] The invention relates to a coal mill bag dust collector, in particular to a simple explosion-proof device for the dust collector. Background technique [0002] The pulverized coal preparation system is a highly dangerous source in the factory - it is prone to fire and explosion. In order to avoid serious explosion accidents, an explosion-proof device is generally installed on the coal mill bag filter. In the event of an explosion, the gas can be exhausted through the explosion-proof device Pressure relief. The explosion-proof device is an important part of the coal mill bag filter, and its performance directly affects the overall performance of the coal mill bag filter. A good explosion-proof device should be able to blast in time at critical moments to protect the entire dust collector equipment. [0003] The explosion-proof device of the existing coal mill bag dust collector has a complex structure, poor sealing and explosion-proof effect, and air l...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a kind of Simple dust collector explosion-proof device, simple structure, easy installation, good explosion-proof effect

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