Automatic drainage device of underground magnetic starter

Abstract

The invention discloses an automatic drainage device of an underground magnetic starter. The drainage device comprises a drainage control device and a backstop, the drainage control device comprises an isolation switch QS, a comprehensive protector JDB1, a comprehensive protector JDB2, a switch SB1, a vacuum contactor KM, an intermediate relay ZJ and a switch SB2, the output end of the switch SB1is connected with a contact K and a contact KM2 in series and is connected with a 2# line, and the input end of the switch SB1 is connected with a 1# line in parallel; and a 9# output terminal of thecomprehensive protector JDB1 is connected with a 9# line. According to the automatic drainage device for the underground magnetic starter, a first floating body, a magnet, a second floating body, a magnet, a high-water-level normally-open contact KM5 and a low-water-level normally-open contact KM6 are arranged, so that the purpose of automatic drainage according to water level changes is achieved.The backstop is mounted, so that water cannot flow back to a water accumulating pit, and people do not need to guard. The whole automatic drainage is unattended, so that the labor force requirement is reduced, and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of drainage equipment, in particular to an automatic drainage device for an underground magnetic starter. Background technique [0002] The accumulated water in the puddle at the lowest point of N3-9 Pishun comes from the goaf. It is a long-running water with a large amount of water. According to the actual measurement on site, if it is not pumped for 30 minutes, the accumulated water will affect pedestrian traffic. Therefore, every shift A special person must be arranged here to drain water. Calculated on the basis of three workers per day and 180 yuan per worker, when automatic drainage is realized here, labor costs will be saved by 540 yuan per day, and labor costs will be saved by about 190,000 yuan per year. The economic benefits of mine promotion are more significant. [0003] QBZ-80 magnetic starter, commonly known as 80 switch, is widely used in various production and operation sites in our mine. Wh...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an automatic drainage device for an underground magnetic starter, which has the advantages of automatic drainage and cost saving, and solves the problem that drainage needs to be manually guarded in the prior art and requires high labor costs

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