Matrix type multi-particle-size dust generator with adjustable humidity and spraying speed

Abstract

The invention discloses a humidity and spraying speed adjustable matrix type multi-particle-size dust generator in the related technical field of mine electromechanical and mining safety, the dust generator comprises a generator main body, and the generator main body is provided with a dust making cavity and a matrix type dust generator; a dust proportioning cavity, a first-stage bearing plate, a wiring cavity, a heating cavity, a vibration cavity, a transmission cavity and a second-stage bearing plate are formed in the dust making cavity; and a driving wheel, a transmission wheel, a wobble wheel, a balance box, a main pulley and an anti-falling track are arranged in the transmission cavity. Practical use results show that the device is reasonable in mechanical structure design, proper in electrical system layout, high in vibration frequency, strong in power, accurate in multi-particle-size dust matching, uniform in mixing, high in dust water content preparation precision and good in uniformity, the matrix type dust generator can achieve point-line-surface spraying, the spraying speed is adjustable, and the dust production efficiency is improved. The device can completely meet the scientific requirements of dust migration simulation experiments on various experiment conditions, and is suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of mine electromechanical and mining safety, in particular to a matrix type multi-particle dust generator with adjustable humidity and spray speed. Background technique [0002] With the continuous improvement of coal mine production, relying on the widespread use of automated coal mining machinery, the amount of dust in the coal mining face of coal mines has also increased accordingly. Coal mine dust is usually divided into coarse dust with a diameter of more than 40 μm, fine dust with a diameter of 10 to 40 μm, fine dust with a diameter of 0.25 to 10 μm, and ultrafine dust with a diameter of less than 0.25 μm. A large amount of dust not only harms the health and health of the workers, but also causes pneumoconiosis when deposited in the lungs. In the production process of coal mine dust, the coal mining machine cuts coal, pulls the frame and moves the frame, breaks the coal with the coal crusher, transfers...

AI Technical Summary

Problems solved by technology

Coal mine dust is usually divided into coarse dust with a diameter greater than 40 μm, fine dust with a diameter of 10 to 40 μm, fine dust with a diameter of 0.25 to 10 μm, and ultrafine dust with a diameter of less than 0.25 μm. When the diameter of dust is less than 5 μm, it is called respirable dust. A large amount of dust not only endangers the health and health of workers, but also causes pneumoconiosis when deposited in the lungs. Coal mine dust is used in the production process of coal cutting by coal mining machines, frame removal, coal breaking by coal crushers, transfer by loaders, and tape Coal transportation and other production links will produce different degrees of dust, which will pollute the working surface with the fresh underground air flow and affect the working environment. At the same time, when the concentration of coal mine dust reaches a certain level, it will also be combustible and explosive, causing casualties and property losses, and a huge safety hazard. , the problem of dust control is urgent

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