Membrane concentration device with cleaning function

The invention discloses a membrane concentration device with a cleaning function. The membrane concentration device comprises a shell and a water tank; a raw material inlet pipe is arranged at one endof the shell; the shell is internally provided with a cavity; a motor is arranged in the cavity; a gear is arranged at the output end of the motor; an arc-shaped rack is arranged on one side of the gear; a first arc-shaped baffle plate is fixedly arranged on one side of the arc-shaped rack and penetrates through the cavity to be connected with a sliding groove, and the sliding groove is located in the inner wall of the bottom of the shell; a second arc-shaped baffle plate is arranged on one side of the first arc-shaped baffle plate; the two ends of the second arc-shaped baffle plate are fixedto the outer wall of the cavity and the inner wall of the shell respectively; and first sealing gaskets are fixedly arranged on the inner wall of the first arc-shaped baffle plate. The membrane concentration device has the beneficial effects that blocked membrane pores can be smooth, the service life of a first tubular inorganic porous membrane is greatly prolonged, in addition, the water production rate can be ensured, and resources are not wasted.