Abstract: Aiming at the problems of the traditional two-component grouting equipment, such as low precision of
grouting ratio control, long time to reach the specified ratio, poor stability of grouting flow and uncontrollable
grouting pressure, an intelligent two-component grouting pump with two sets of independent control hydraulic
systems is designed, which can realize arbitrary injection ratio of two-component grouting. Double gear pump is
adopted in the design of the grouting pump, so as to ensure the high efficiency and stability of the hydraulic system,
and then the stability of two-component injection is guaranteed, so that the precision of two-component injection
ratio is significantly improved(the proportional error is controlled within 10%). At the same time, through the PLC
setting, the required time to reach the specified ratio is shortened(The time is controlled within 25s). By setting the
‘gradient grouting’ program, the grouting pressure can be controlled and the grouting quality can be guaranteed.
Based on the results of grouting test, fine control of two-component grouting and automatic ‘gradient grouting’
can be achieved. After the application comparison of the project site, this product can improve the quality of
double-liquid grouting and reduce the consumption of grouting materials.