Serous material concentration online detection apparatus

The utility model provides a size concentration on-line monitoring apparatus, comprising a liquid relief device, a liquid discharge device, a pressure sensor, a liquid inlet tube, a control valve and a support frame. The utility model is designed and manufactured in accordance with the fundamental hydraulics principle and can work when put in the operation site. The utility model can calculate the size concentration of cement with various grades in the process of foundation grouting by monitoring the pressure exerted to the utility model by the cement grout when flowing through. The detection range is from 1.13 to 1.84. The precision is less than plus or minus 5% FS. The working environment temperature ranges from minus 10 DEG C to plus 40 DEG C and the relative temperature is less than 90%. The utility model has a rational structure, easy manufacture, reliable work and convenient operation.