Method and device for filtering dust by adopting nuclear track membrane

Abstract

The invention belongs to the technical field of labor protection methods and devices, and provides a method and a device for filtering dust by adopting a nuclear track membrane. The device for filtering dust by adopting a nuclear track membrane comprises a protection helmet, a head fixing bracket, a nuclear track membrane filter system, an air compression system and a dustproof mask; and the internal part of the protection helm is provided with the head fixing bracket. The invention is characterized in that the aperture of the nuclear track membrane is 0.5-2 mum; the nuclear track membrane filter system is fixed in the head fixing bracket and connected with the air compression system which is fixed outside the protection helmet through a gas-guide tube ; the air compression system compresses clean air filtered by the nuclear track membrane and sprays the clean air into the dustproof mask through an air supply delivery tube; the air pressure in the protection mask is kept in the range of 1.20-1.25 atm, thereby preventing the entrance of dust air outside the protection mask. The invention has the advantages of high dust filter efficiency, smooth breathing, convenient cleaning and the like.

Description

technical field [0001] The invention belongs to the technical field of labor protection, and in particular relates to a method and a device for filtering dust by using a nuclear pore membrane. Background technique [0002] Pneumoconiosis is a systemic disease mainly caused by diffuse fibrosis of lung tissue caused by long-term inhalation of productive dust and retention in the lungs during occupational activities. It is more common in mining, crushing, transportation, and machinery manufacturing of coal mines and other ores Workers who have been exposed to productive dust for a long time in industries such as construction and construction. my country is the country most affected by pneumoconiosis in the world. At present, there are 21 million workers in various mines who are often exposed to dust, and 10,000 cases of pneumoconiosis are diagnosed every year. Since the 1950s, the cumulative number of confirmed and suspected pneumoconiosis cases Nearly 1 million people. [000...

AI Technical Summary

Problems solved by technology

In the utility model announced by CN2612401Y, the structure of the inner and outer layers of the gauze can lead to poor breathing, and the nuclear pore membrane pore size range claimed by the utility model is 15nm-8μm. If the nuclear pore membrane pore size is too small, it will cause poor breathing. If the pore size of the nuclear pore membrane used is too large, it will not be able to prevent pneumoconiosis

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