Grouting pump application introduction

The performance and quality of the grouting pump play a decisive role in the safety, quality and efficiency of the grouting project. If the choice of grouting pump is blind and random, it may cost a lot to fail to achieve the expected results, and even cause engineering accidents. Grouting method is to hydraulically pump the slurry into the rock or soil gap and fill it with compaction. During the grouting process, new cracks will be punched out, which will cause frequent changes in grouting pressure. Sometimes the grouting pressure will be sharply sharp. Changes, the characteristics of this condition determine the performance of the grouting pump application.

The grouting pump application instruction:

(1) The grouting pump should have a larger range of slurry discharge adjustment, and the change of the final amount of grouting and the amount of grouting is 8~10 times. The final amount of grouting is small, which proves that it is good to fill and compact.

(2) The grouting pump should have reliable pressure control capability. Because the grouting “filling and compacting” will inevitably form the overpressure of the grouting pump, the pump should reduce the amount of slurry in time to reduce the flow resistance of the slurry in the gap, thus avoiding grouting and fracturing. , mechanical accidents, etc. The grouting pump preferably has the property of automatically adjusting the amount of slurry as the grouting pressure changes.

(3) The grouting pump should be easy to operate and safe and reliable to use. Because the slurry used in the grouting pump is prone to sedimentation and solidification, the grouting pump must ensure that it cannot be stopped in the middle of the grouting (preventive maintenance should be done before grouting). The operating conditions in the mine are difficult, and the grouting pump must be reliable and absolutely explosion-proof.