Mining dust filtration and air supply type dustproof mask and testing method thereof

Abstract

The invention belongs to mine personal protection type portable instruments and equipment, and relates to a mining dust filtration and air supply type dustproof mask. The mask comprises a breathing mask, a head tying belt, a main machine and a filter, wherein a breathing mask covers the mouth and nose of a user, a breathing exchange space is formed between the breathing mask and the mouth and noseof the user, the head tying belt is connected to the breathing mask, the head tying belt assists the breathing mask in covering the mouth and nose of the user in the mode of being fixed to the head and the shoulder and neck of the user, a main body of the main machine is of a tubular structure, a micro fan is arranged in the main machine, the filter is connected to one end of the tubular structure of the main body of the main machine, the main machine and the filter form an assembly body with a tubular main body, the assembly body is connected with the breathing mask to enable the breathing exchange space to communicate with the interior of a main body pipe of the assembly body, the assembly body is lapped on the shoulder and neck of the user, and outside air is driven by the micro fan toenter the main machine through the filter. The dustproof mask actively supplies air and is portable and efficient. The invention also provides a testing method of the dustproof mask.

Description

technical field [0001] The invention belongs to a portable instrument and equipment for personal protection in mines. The invention belongs to a dust filter mask for mines, in particular to a dust filter air supply type dust mask for mines. Background technique [0002] The environment of coal mine operation is harsh, the dust is heavy, the ventilation conditions are poor, and the incidence of pneumoconiosis is high, which seriously endangers the health of workers. The underground workers of coal mines need to wear corresponding respiratory protective equipment to avoid the damage of high dust environment to health and reduce the risk of pneumoconiosis. reduce the probability of disease and improve the efficiency of coal mine underground work. However, in the existing breathing dust masks for mines, the dust particles of the self-priming filter dust masks are gradually deposited on the filter layer after long-term use, resulting in continuous increase of breathing resistance...

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Problems solved by technology

[0004] In order to solve the above problems, the mine dust filter air supply type dust mask proposed by the present invention solves the technical problems of current mine dust shield products and overcomes the defects of the prior art. According to the labor intensity and vital capacity requirements of mine underground operators in my country, a This kind of dust-filtering air-supply dust mask with high filtration efficiency, small breathing resistance, flexible and light to wear, can be worn on the neck, which can not only overcome the shortcomings of high breathing resistance of dust masks, but also solve the complex and heavy problem of wearing long-tube respirators , which is of great significance for strengthening my country's occupational safety and health protection capabilities and improving the level of mine personal protection technology and equipment

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