Mine-used pleat type metal screen filter cylinder

Abstract

The invention discloses a mine-used pleat type metal screen filter cylinder, which comprises a filter screen (1), a mounting cover (2) and a sealing cover (3), wherein the mounting cover (2) and the sealing cover (3) are respectively arranged at the top and the bottom of the filter screen (1), a sealing gasket (4) is arranged at the upper part of the mounting cover (2), and the filter screen (1) and the mounting cover (2) are made of metal with good electrical conductivity and good wear resistance; the filter screen (1) is in a three-layer metal screen composite structure of an outer-layer intermediate screen (11), a middle-layer thick screen (12) and an inner-layer thin screen (13); the filtering surface of the filter screen (1) is in a deep pleat (15)-and-shallow pleat (14) trapezoid pleat type structure; and the outer surface of the sealing gasket (4) is wrapped with a layer of electrical conduction screen (5). The mine-used pleat type metal screen filter cylinder has the characteristics that the service cycle is longer, the inflaming retarding property and the antistatic property are higher, the dedusting efficiency is high, the safety explosive-proof grade is higher, etc.

Description

technical field [0001] The invention relates to the field of dust collector devices, in particular to a mining pleated metal mesh filter cartridge. Background technique [0002] A large amount of dust will be generated during coal mine excavation, coal mining, reloading and other operations. Mineral dust will not only affect the normal operation of the equipment, but also directly deteriorate the working environment and induce serious pneumoconiosis, and even have hidden dangers of dust explosion accidents, especially in coal mine excavation work. Flour dust is the most serious hazard. For a long time, coal mines have generally used water spraying and foam dust suppression methods. This wet method has low efficiency in reducing respirable dust, and is especially difficult to apply to the arid and water-deficient western mining areas in my country's main coal production areas. Dry filter dust removal does not consume water, has high dust removal efficiency, and the purificat...

AI Technical Summary

Problems solved by technology

Although the dust removal efficiency of the dust collector imported from Germany is as high as 99.997%, the filter cloth used cannot achieve a good flame retardant effect, and some filter screens have been burned through; domestic dry dust collector filter cartridges generally use polyester fiber materials , although this material can achieve flame retardant and antistatic properties well, the dust removal efficiency of the dust collector is not high and the cost is expensive, and the flame retardant and antistatic properties of polyester fiber materials will be greatly attenuated during long-term use , thus affecting safety, especially under the conditions of high dust concentration in coal mines, harsh working environment and strong coal dust corrosion, there is an urgent need for a mine dust filter cartridge with better performance

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