When designing mine dust removal equipment, there are several key elements that need to be tightly controlled. First of all, for each dust spot, the hood needs to be designed to ensure that the hood mouth is facing the direction of dust diffusion. This design helps to better capture dust and improve dust collection efficiency. At the same time, the gaps around the dust spots should be sealed as much as possible to reduce the air volume used for dust capture, thereby reducing equipment investment and energy consumption. For fine dusts that are difficult to collect, pulsed baghouses are generally recommended. This kind of dust collector uses polyester needle felt filter cloth with good filtration effect, which can achieve good ash cleaning effect. In order to better clean the ash, it is also a good choice to use the high-pressure compressed air pulse cleaning method. In the design of the vibrating screen dust collection cover, the upper sealing cover of the vibrating screen is generally adopted. The gap between the sealing cover and the vibrating screen is sealed with a rubber plate to ensure the sealing effect. At the same time, movable access doors are set at the front and top of the dust collection hood to facilitate daily inspection and maintenance. 
The design of the dust collection hood should be as close to the dust source as possible and as airtight as possible without affecting production and maintenance. This design can better collect dust, reduce dust escape, and improve dust removal effect. At the bottom of the dust collector, install a screw conveyor and a star-shaped discharger with air lock function. This allows the dust collected in the dust collector to be collected in one place for easy utilization. At the same time, according to the physical properties such as hardness and discreteness of the collected mineral dust, combined with the requirements of professional standards and practical experience, and comprehensively considering factors such as equipment investment, motor power, maintenance costs, etc., the filtration speed of the dust collector should be 12m min is appropriate. The distance between each dust collection cover and the dust source should be reasonable, and a protective net should be set up at the dust collection port to prevent foreign objects such as plastic bottles from entering the dust collector and getting stuck in the star-shaped rotary discharger. 
In addition, it is also important to design the system pipe network according to the air volume distributed by each dust point, and select a reasonable pipeline wind speed. At the same time, considering the resistance balance of each dust collection point, in addition to the reasonable selection of pipe diameter, it is necessary to set up an air control valve as an auxiliary measure to adjust the pressure balance. Reasonable duct air speed is the key to the normal operation of the entire dust removal system. If the wind speed of the pipeline is too high, the resistance of the system pipe network will be too large, the total air volume of the system will be reduced, the dust suction effect will be worse, and the wear of dust on the pipeline will be accelerated. The selection of too low wind speed in the pipeline will cause a large amount of dust to settle in the pipeline, which will affect the normal operation of the dust removal system, and the selection of too low wind speed in the pipeline will also lead to an increase in investment. In the design process, it is also necessary to comprehensively consider various factors according to the actual situation, such as equipment footprint, operating energy consumption, maintenance costs, etc. Through multi-faceted comparison and analysis, the most suitable dust removal equipment configuration scheme is selected to ensure the production efficiency and environmental hygiene of the mine. 
Mining crushing machinery and equipment