A fully pneumatic portable air purification system for mines

Abstract

An all-pneumatic portable air purification system for mining, comprising a mask body (7), an air storage tank (3) and a manual air compression device (1), the manual air compression device being movably connected to an air inlet (18) at the bottom of the air storage tank; The filter body comprises a gas-permeable outer shell, a middle shell and an inner shell, a second cavity is formed between the middle shell and the inner shell, and a micro fan (10) and a micro pneumatic device are arranged in the second cavity a high-precision filter layer (9) is arranged in the center of the intermediate casing, and a two-way switch (12) and a speed control knob (13) are arranged on the outer wall of the intermediate casing ); the outer shell is provided with an ash discharge port (8), and the air outlet is sleeved with a movable cover (17); the air inlet (21) of the micro-pneumatic machine is communicated with the air outlet of the air storage tank through a conduit (6). The system can achieve safe, high-precision filtration, active suction, dust removal and self-rescue functions.

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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