The underground central water pump room of the coal mine is a main place for mine drainage, which plays an important role in the safety of the mine. Among them, the wear-resistant multistage centrifugal pump for mining is the main part of the underground central water pump room.
Installation of wear-resistant multi-stage centrifugal pump for mine
The installation steps of wear-resistant multi-stage centrifugal pumps for mines generally include placing the pump on the foundation to find the level and connecting the pump pipeline. In addition to the general installation requirements, the following two points should be paid attention to when installing this type of pump:
a) There must be a clearance of 3～7mm between the motor coupling and the pump coupling (see the e or L7 column value in the installation dimension table for the specific clearance value), which is close to the displacement of the pump.
b) The axis lines of the motor and the pump must be straight in the same plane. A feeler gauge can be used to measure the uniformity of the gap between the end faces of the two couplings. In all directions of the circumference, the difference between the maximum and minimum gaps should not exceed 0.05mm. The difference between the top and bottom or left and right of the center line of the two end surfaces should not exceed 0.05mm.
Equipment required for the installation of wear-resistant multi-stage centrifugal pumps for mines
The following conventional and special equipment and tools are required for pump installation:
a) Lifting equipment with appropriate and safe load capacity;
b) Each anchor bolt must be equipped with a steel shim iron or wedge iron for leveling the base;
a) The grouting material must be non-shrinking grouting material. For grouting, a wooden box must be prepared and equipped with a funnel.
d) In order to install and remove the packing, a set of special tools is needed, such as a clamp with a hook.
