Coal mine fan noise and dust control equipment and control method thereof

Abstract

The invention discloses coal mine fan noise and dust control equipment and a control method thereof. The coal mine fan noise and dust control equipment comprises a fan, a diffuser and a connecting pipe used for connecting the fan with the diffuser. The coal mine fan noise and dust control equipment comprises a sound insulation cover arranged on the fan, a flow guide and noise reduction mechanism arranged in the connecting pipe, a dust suppression barrier arranged on the diffuser, the sound insulation cover comprises a first frame, and a first sound absorption plate and a first sound absorption lining are sequentially arranged on the first frame from inside to outside; the flow guide and noise reduction mechanism comprises a sound absorption cylinder and a sound absorption layer, the sound absorption cylinder and the sound absorption layer are arranged on the inner wall of the connecting pipe from inside to outside, a flow guide and noise reduction assembly is installed in the sound absorption cylinder, and a plurality of silencing holes are formed in the sound absorption cylinder; and the dust suppression barrier comprises a second frame, a second sound absorption plate and a second sound absorption lining are arranged on the second frame, and a high-pressure spraying dust removal mechanism acting above a diffuser outlet is further arranged on the second frame. Noise generated by the fan can be remarkably reduced, the noise elimination effect is good, and the ideal dust suppression effect is achieved.

Description

technical field [0001] The invention relates to the technical field of coal mine production equipment, in particular to a coal mine fan noise and dust control device and a control method thereof. Background technique [0002] The fan is the main equipment for underground ventilation in coal mines, and is widely distributed in underground roadways. The fan will generate strong airflow noise, mechanical noise and electromagnetic noise during operation, which is the main noise source in coal mines. Its A sound level can reach more than 100 decibels, endangering the health of employees, affecting signal transmission, and easily causing safety accidents. During the operation of the fan, a large amount of dust in the coal mine will be brought out, which seriously pollutes the outside air. The existing fans have low noise reduction capacity, relatively simple internal noise reduction structure, poor noise reduction effect, and unsatisfactory dust suppression effect. [0003] Ther...

AI Technical Summary

Problems solved by technology

The fan will generate strong airflow noise, mechanical noise and electromagnetic noise during operation, which is the main noise source in coal mines. Its A sound level can reach more than 100 decibels, endangering the health of employees, affecting signal transmission, and easily causing safety accidents. During the operation of the fan, a large amount of dust in the coal mine will be brought out, which seriously pollutes the outside air

The existing fans have low noise reduction, the internal noise reduction structure is relatively simple, the noise reduction effect is poor, and the dust suppression effect is not ideal

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