Device for detecting differential pressure density of dense medium suspension liquid on line

The utility model discloses a device for detecting differential pressure density of a dense medium suspension liquid on line, and belongs to detection equipment. A power supply input port, a program download port, a signal output port and a signal input port are formed in a PLC (Programmable Logic Controller) control display cabin; two ends of a signal line are respectively connected with a sensor and the PLC control display cabin; flange discs are respectively arranged at the upper and lower end parts of a vertical bypass pipeline; a manual valve is assembled on the flange disc at the lower end part; two pressure sensing membranes are respectively arranged on upper and lower side pressure taking ports in the side wall of the vertical bypass pipeline; the two pressure sensing membranes are respectively communicated with the sensor through two capillary tubes full of silicone oil. The device is reasonable in structure, high in detection precision, good in stability, easy to regulate and control, and is applica