Slurry pump installation and commissioning

Slurry pump installation and commissioning

1 Crew should take a secondary horizontal slurry grouting method for installation. After installation, the centerline of the unit shall be consistent with the center line of the base; tolerance level units of 1/10000. For slurry using direct drive coupling unit, the unit is generally coaxial alignment by coupling to be guaranteed. With a straightedge and feeler, or the use of a magnetic dial indicator with feeler. For the use of slurry pump pulley drive unit should be kept flat shape of the shaft and the motor shaft, the pulley is usually carried out to find the positive.

2 After the installation alignment, vertical error horizontal error horizontal and vertical slurry pump slurry pump unit is not more than 2mm; direct connection drive, concentricity between unit equipment checked with a dial indicator is not more than 0.1 mm; belt drive, motor and pump pulley should be aligned, slurry pump manufacturer  check with a ruler or straight, its dislocation is not more than 1mm.

3 And export pipeline configuration . Diameter size of a combination of factors to consider investment, the system resistance, critical settling slurry flow rate, suction pipe should be as short and straight, in the inlet of slurry, preferably with some and imported the same straight pipe diameter, its length should not be less than three times the inlet diameter. The flow rate of the suction pipe is generally 1.7-2.5 / s.

4 Slurry pump and motor should be installed on a solid foundation, not rubber, cushion pad to bear the full weight of slurry and eliminate vibration, anchor bolts should be tightened evenly. After pouring cement pump stand and bolt holes, cement to dry, then check the levelness.

5 Weight piping and valves should not be borne by the slurry, were considered the best of its support.

6 Import and export of slurry should be used to shorten the extension section connecting pipe to repair, pipe should be firmly supported, can not withstand the heavy slurry pipe to prevent damage slurry.

7 import and export slurry valves shall be provided in order to repair or regulate the use.