A slag discharge device for underground gas drainage pipelines in mines and a method for utilizing the slag discharge water

Abstract

The invention discloses a slag water drainage device for an underground mine gas drainage pipeline. The slag water drainage device comprises a five-way pneumatic control valve, a mechanical control valve, a water collection and slag discharge barrel and a main air inlet pipeline. A water inlet pipeline communicated with the gas drainage pipeline, and a negative pressure pipe communicated with the gas drainage pipeline are respectively arranged on the water collection and slag discharge barrel. A buoy is arranged inside the water collection and slag discharge barrel, an ejector rod is arranged on the buoy, one end of the ejector rod is arranged outside the water collection and slag discharge barrel, the bottom of the water collection and slag discharge barrel is provided with a slag discharge pipeline communicated with the water collection and slag discharge barrel, and a pneumatic drainage valve is arranged on the slag discharge pipeline. According to the slag water drainage device for the underground mine gas drainage pipeline, underground mine compressed air serves as a power source of the device, the compressed air can be fed into the water collection and slag discharge barrel through the arranged pipeline, the slag water inside the barrel is forcibly discharged out of the barrel, and rapid, thorough and stable slag water drainage is ensured; the function of prolonging slag water drainage working time is achieved through a throttle valve and an energy accumulator at the same time.

Description

technical field [0001] The invention relates to a slag discharge water device used in underground mines, in particular to a slag discharge water device used for underground gas drainage pipelines in mines and a method for utilizing the slag discharge water. Background technique [0002] In the process of gas extraction in coal mines, due to the large temperature changes in various locations underground in coal mines, a large amount of condensed water will be formed in the pipelines of the extraction system. hole water. This will affect the normal operation of the drainage system, increase the drainage resistance, and reduce the drainage effect, which is manifested as the illusion of increased system negative pressure, decreased pressure difference, and increased concentration. Therefore, the accumulation of water in the drainage system has become a major safety hazard affecting the stability of the system. [0003] According to research at present, the existing products on...

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Problems solved by technology

This kind of equipment will have some problems after long-term operation: for example, the floating ball is easily damaged, the magnet is easy to absorb impurities, and the water inlet and outlet valves are easy to be blocked by cinders, etc.

[0004] Based on the above considerations, there are still some problems in the slag discharge water drainer on the market, such as waste of manpower, untimely slag discharge affects pipeline drainage, dirty slag discharge, and equipment malfunction caused by coal slag pollution, etc.

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