Underflow pump capable of discharging pollution and cleaning automatically and control method thereof

Abstract

The invention relates to an underflow pump capable of discharging pollution and cleaning automatically and a control method thereof. The underflow pump comprises an underflow pump (2); two ends of the underflow pump (2) are respectively provided with an underflow pump inlet pipe (3) and an underflow pump outlet pipe (4); the underflow pump outlet pipe (4) is provided with a first pollution discharging pipe (11) extending downwards; the first pollution discharging pipe (11) is provided with a third check valve (7); and a second check valve (6) is arranged on the underflow pump outlet pipe (4) between the underflow pump (2) and the pollution discharging pipe. According to the invention, when the underflow pump system malfunctions, the underflow pump can discharge pollution and clean automatically, thus the problem of pipe choking caused by sudden power off for overloading of the underflow pump or the damage of the underflow pump is solved effectively, the underflow pump device is protected to the greatest extent, and the overhaul time of the underflow pump is shortened.

Description

technical field [0001] The invention relates to an underflow pump and a control method thereof, in particular to an underflow pump capable of automatic sewage discharge and automatic cleaning and a control method thereof. Background technique [0002] In the dehydration process of the dehydration station, the underflow pump is responsible for transporting the slurry with a concentration of 60%-70% from the concentration tank. During the transportation process, the high-speed and high-concentration slurry will cause great wear and tear on the equipment of the underflow pump system. When the underflow pump suddenly stops due to overload or the underflow pump is damaged, if the staff cannot find out and deal with it in time, it will cause serious pipe blockage and affect the normal production. [0003] In the original underflow system, such as figure 1 As shown, it includes an underflow pump 2 , an underflow pump inlet pipe 3 and an underflow pump outlet pipe 4 . The installa...

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Problems solved by technology

[0004] The present invention designs an underflow pump capable of automatic sewage discharge and automatic cleaning and its control method. The technical problem it solves is the situation of pipe blockage caused by the sudden shutdown of the underflow pump due to overload or the shutdown of the underflow pump due to damage.

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