Drilling mud disc-shaped sealing sand pump

The utility model relates to a drilling mud disc-shaped sealing sand pump, and belongs to the technical field of oil production machines. According to the technical scheme, the drilling mud disc-shaped sealing sand pump comprises a mud inlet (1), a shell (2), a blade (3), a disc-shaped sealing ring (4), a bearing seat (5), a shaft (6) and a mud outlet (9), wherein the shaft (6) is arranged on the bearing seat (5); the blade (3) is arranged at the front end of the shaft (6) and is fixedly connected with the shaft (6); the shell (2) is arranged on the outer side of the blade (3); the mud inlet and the mud outlet are formed in the shell; the mud inlet is formed in a front part position of the blade; the mud outlet is formed in an upper part position of the blade; the disc-shaped sealing ring comprises two sections, of which one section is fixedly arranged on the shaft and the other section is fixedly arranged on the shell. The sand pump has the beneficial effects that the shaft does not participate in sealing during work of the sand pump, the wear of the shaft of the sand pump is avoided, the service life of the sand pump is prolonged, the sealing structure is simple and the sealing effect is obvious.