Dry Screw Vacuum Pump in Sewage Treatment
Sewage treatment is now necessary for major factories and enterprises, and its use will also reduce water pollution. Choosing a screw vacuum pump to work in sewage treatment can effectively increase the efficiency of water delivery, but in the selection, attention should be paid to the selection of suitable equipment, otherwise it will increase the difficulty in this regard.
Dry screw vacuum pumps are widely used in sewage treatment plants to transport water, wet sludge and flocculant medicinal liquids because of their variable transmission, strong self-priming ability, reversibility and ability to transport liquid containing solid particles. If the design and selection are not considered carefully, it will bring trouble to the future use, management and maintenance. Therefore, selecting a reasonable and reliable screw pump according to the actual needs of production can not only ensure smooth production, but also reduce the cost of repair.
This involves the life of equipment. Everyone knows that the flow rate of the screw vacuum pump is linearly related to the rotational speed. High rotational speed increases the flow rate and head, and the power increases obviously. This will accelerate the wear between the rotor and stator, which will inevitably lead to premature failure of the screw pump. Moreover, the length of the stator and rotor of the high rotational speed screw pump is very short and easy to wear and tear, so it is shortened. The service life of screw pump. Through deceleration mechanism or stepless speed regulation mechanism to reduce speed, Hu Cen's technical experts believe that less than 300 rpm is a more reasonable speed range, compared with the high-speed screw pump, the service life can be extended several times. This is particularly evident in wastewater treatment applications.
The selection of dry screw vacuum pump in sewage treatment should be based on the use of a reasonable choice, so as to form a better use of screw vacuum pump.