Air curtain dustproof helmet and method

Abstract

The invention discloses an air screen dustproof helmet and an air screen dustproof method. The helmet comprises a cap shell, a helmet sandwiched layer, a cap lining and a jowl band, wherein an air screen injection system and an air source are arranged on the helmet, and the air source is connected with the air screen injection system. The dustproof method comprises the following steps of: fixing the helmet by using the jowl band; connecting an air source pipeline; opening a gas cylinder valve or a compression air pressure reduction valve; regulating a valve on the helmet to make air form an air screen at a certain flow speed along a helmet face from a nozzle; regulating a branch pipe valve to lead a certain amount of air to enter from the helmet sandwiched layer; and forming positive pressure between the helmet face and the air screen. The air screen dustproof helmet is applied to a production place suffering harmful dust, and occupational hazard of dust to a worker can be effectively prevented; the dustproof helmet is free from limitation of a worker face, worker sight is not affected, the strength of the air screen can be regulated, the dustproof helmet can be applied to environments having different dust contents, and pneumoconiosis occurrence of employee can be effectively prevented or reduced, and safety production is ensured.

Description

technical field [0001] The invention relates to a dustproof helmet and a method, in particular to an air curtain dustproof helmet and a method for preventing coal mine dust. Background technique [0002] In the process of mining and industrial production, a large amount of production dust is often produced, and the dust enters the lungs with the human body and accumulates. The chronic and progressive pulmonary fibrosis damage is called pneumoconiosis. Common pneumoconiosis are: silicosis, coal pneumoconiosis, cement pneumoconiosis, carbon ink pneumoconiosis, mica pneumoconiosis, castor pneumoconiosis, etc. The damage to human health caused by this occupational disease is extremely serious, and there is currently no effective treatment for pneumoconiosis, so the work of individual dust prevention has important practical significance for preventing the occurrence of pneumoconiosis. [0003] During production, in workplaces with serious dust pollution, in addition to adopting ...

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Problems solved by technology

[0003] During production, in workplaces with serious dust pollution, in addition to adopting dust-proof and dust-reducing measures such as wet operation, sprinkler spray for dust reduction, and dust removal equipment, workers also need to wear personal protective equipment, such as dust masks, air supply helmets, and air supply masks. Etc., the dust-proof masks used in practical applications are likely to cause dust to adhere to the dust filter net to block the mesh due to the water vapor generated by breathing, resulting in a gradual increase in breathing resistance, and the face is hot and humid, which affects the comfort of the wearer; most of the air-supply helmets are belt Closed and semi-closed helmets with eyepieces are prone to form water mist on the inner wall of the eyepiece due to human breathing, and at the same time, the outer wall of the eyepiece is also susceptible to dust adhesion, affecting sightlines and safe production; air supply masks are only used for dust protection on the nose and mouth , but not dust protection for the eyes

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