Liquid-solid mixing and conveying system

The utility model discloses a liquid-solid mixing and conveying system, which relates to the technical field of petrochemical engineering, and comprises a mixing device, a liquid-solid conveying device and a liquid-solid conveying device, the first stirring mechanism is arranged in the inner cavity; the premixing device comprises a shell, the shell extends in the horizontal direction, the first input port and the second input port are located at one end of the shell, and the first outlet is located at the other end of the shell; the second stirring mechanism is arranged in the shell; a vacuumizing device; and a pump device. According to the device, a powdery solid material and a liquid material can be continuously fed, mixed and discharged, and in the process, slurry formed by the powdery solid is effectively prevented from being continuously adhered to the inner wall surface of the upper part of the mixing device, so that the actual proportion deviation caused by poor mixing of the powdery solid material and