Ventilation air methane (VAM) suction device

Abstract

The invention relates to a VAM suction device. The suction device comprises a VAM exhaust pipe, a delivery connecting pipe, a maintenance part, a filter part, an air exhaust fan, a VAM suction cover and a determination part, wherein the maintenance part is arranged on the delivery connecting pipe, the filter part is arranged in a pipeline arranged in the middle of the maintenance part, the air exhaust fan is arranged at the air outlet of the delivery connecting pipe, the VAM suction cover is arranged between the air outlet of a VAM air exhaust pipe and the delivery connecting pipe, the determination part is arranged on the delivery connecting pipe between the VAM suction cover and the maintenance part, the air outlet of the VAM suction cover is connected with the delivery connecting pipe in a sealing mode, a gap is reserved between the air inlet of the VAM suction cover and the VAM air exhaust pipe, and the suction air quantity of the VAM suction cover is 70% of the VAM exhaust quantity. The VAM suction device is applied to a VAM delivery system and has the advantages of being capable of adjusting VAM delivery and diffusion automatically, filtering dust and impurities in the VAM, and guaranteeing VAM delivery safety; and energy-saving, environment-friendly and reliable in use.

Description

technical field [0001] The invention relates to a coal mine gas transportation equipment, in particular to a ventilation suction device used in a ventilation transportation system. Background technique [0002] Mine ventilation gas, chemical industry, papermaking, waste water treatment and other industries contain combustible gas, commonly known as exhaust gas. The main component of exhaust air is methane, which rarely produces pollutants after combustion. It belongs to high-quality clean gas energy, but it is also one of the great safety hazards in coal mines and industrial production. In order to improve safety, it usually relies on a large amount of ventilation to directly discharge exhaust air into the atmosphere, which not only causes a serious waste of limited non-renewable resources, but also causes huge pollution to the atmospheric environment and aggravates the greenhouse effect. Therefore, it is of great significance to carry out the research on exhaust air utiliz...

AI Technical Summary

Problems solved by technology

When the concentration is too low, the heat energy generated in the exhaust air utilization equipment cannot meet the heat supply required by itself, and it will not be able to operate normally. The concentration of exhaust air is very low. If a large amount of air enters during the transportation process, It is bound to affect the normal operation of exhaust air utilization equipment

[0004] At present, there is no supporting connection device for exhaust air utilization equipment in China. Since coal mine ventilation shafts need 24-hour forced exhaust regardless of whether the exhaust air is used or not, the connection between the exhaust air conveying device and the exhaust air outlet is both It is necessary to ensure the airtightness of the transportation, and to prevent the exhaust air from being enriched in the exhaust air utilization equipment when the exhaust air utilization equipment stops running, and cannot be released in time, which may cause unpredictable dangers

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