Magnetic dust collection device for collecting iron-containing particles

Abstract

The invention provides a magnetic dust collection device for collecting iron-containing particles. The magnetic dust collection device comprises a lower-layer filter frame, an upper-layer filter frame, a metal net mounted at the upper part of the lower-layer filter frame and a permanent magnet placed in a fixed groove between the inner wall and the outer wall of the filter frame; a permanent magnet fixing groove is formed between the inner wall and the outer wall of the lower-layer filter frame; and the permanent magnet is coupled to the permanent magnet fixing groove, the metal net is magnetically coupled to one surface of the permanent magnet at the upper part of the lower filter frame, a permanent magnet fixing groove is formed between the inner wall and the outer wall of the upper filter frame, and the upper and lower filter frames are connected through a hinge corresponding to the permanent magnet fixing groove in the lower filter frame. The magnetic dust collection device for collecting the iron-containing particles can be installed in an exhaust port of an area needing dust removal, the particles, especially the iron-containing particles, in the environment can be captured through the metal net magnetized by the permanent magnet, and the purpose of purifying air is achieved.

Description

technical field [0001] The invention relates to the technical field of air dust collection, in particular to a magnetic dust collection device for collecting iron-containing particles. Background technique [0002] Iron and steel plants, metal processing workshops, subways and other places will produce a large amount of iron-containing fine particles. For example, in the subway environment, iron-containing fine particles account for about 20% to 70%. Fine particles rich in heavy metals not only pollute the environment, but are also harmful to human health. At present, dust collection and dust removal devices are usually used, such as: electrostatic precipitator, bag filter, air purifier or heating, ventilation and air conditioning to add dust collection system to reduce and control the emission of particulate matter. Due to high operating costs and low removal efficiency, these methods Each has its own shortcomings. And because such iron-containing particles are mostly irr...

AI Technical Summary

Problems solved by technology

However, when the train passes under the exhaust pipe connected to the outside world, positive pressure will be formed at the front of the train, and the dust will rise along the exhaust passage. The fine dust will descend and flow back to the subway tunnel, and cannot be effectively discharged

[0004] In this regard, although some people have proposed the use of baffles or non-woven fabrics to prevent the backflow of fine dust, but because this phenomenon occurs frequently and the cycle of replacing non-woven fabrics is short, it is difficult to maintain and manage

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