Mining all-pneumatic portable air purification system

Abstract

The invention discloses a mining all-pneumatic portable air purification system. The mining all-pneumatic portable air purification system comprises a mask body (7), an air storage tank (3) and a manual air pressing device (1), wherein the manual air pressing device is movably connected with an air inlet (18) in the bottom end of the air storage tank; a filter body comprises an air-permeable outerlayer shell, a middle shell and an inner layer shell, a second cavity is formed between the middle shell and the inner layer shell, a micro fan (10) and a micro pneumatic motor (14) are arranged in the second cavity, and the micro fan (10) and the micro pneumatic motor (14) are connected through a transmission shaft (15); a high-precision filtering layer (9) is arranged in the center of the middle shell, a bidirectional switch (12) and a speed adjusting knob (13) are arranged on the outer wall of the middle shell, a dust discharging port (8) is formed in the air-permeable outer layer shell, amovable cover (17) is arranged in an air outlet in a sleeve mode, and a micro pneumatic motor air inlet (21) communicates with an air outlet of the air storage tank through a guide pipe (6). The system can realize the functions of safety, high-precision filtration, active air suction, dust removal and self-rescue.

Description

technical field [0001] The invention belongs to the technical field of mine air purification equipment, and in particular relates to a fully pneumatic portable air purification system for mines. Background technique [0002] With the increasing mechanization of coal mines, the dust concentration in coal mine tunneling working face and fully mechanized mining working face generally exceeds the standard, causing the number of miners suffering from pneumoconiosis to increase year by year. At present, wearing a dust mask is one of the main measures for underground mine workers to prevent pneumoconiosis. However, when ordinary mining dust masks are worn, there are usually the following problems: [0003] (1) Masks filter the flowing air mainly relying on people's own breathing. The better the filtering effect of the mask, the greater the breathing resistance, and as the wearing time increases, more and more dust is attached to the surface of the mask, and the breathing resistanc...

AI Technical Summary

Problems solved by technology

[0003] (1) Masks filter the flowing air mainly relying on people's own breathing. The better the filtering effect of the mask, the greater the breathing resistance, and as the wearing time increases, more and more dust is attached to the surface of the mask, and the breathing resistance is getting higher and higher. Large, increasing the burden of normal breathing for miners, resulting in poor breathing and feeling of suffocation, and the mask needs to be replaced regularly, which is a waste of resources;

[0004] (2) At present, most of the active air-supply masks used on the ground are powered by batteries, and the electric system is easy to generate electric sparks, and it is easy to induce gas or dust explosion accidents in high gas mines, coal and gas outburst mines;

[0005] (3) With the increase of the degree of mechanization of coal mines, a large number of mechanical equipment are used in working places such as coal mining face and fully mechanized mining face, including diesel engines. During the use of diesel engines, a large number of diesel engine exhaust particles will be generated, which contains There are a lot of toxic and harmful substances, which seriously threaten the health of miners, and there is currently no special mask for filtering diesel engine exhaust particles

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