When it comes to pumping slurry, many can agree it isn’t an easy task. You may have some worries. Fox example:
• What style of pump is suitable?
• If centrifugal, is the design and material of the impeller appropriate?
• What is the pump constructed of?
• Are the discharge configurations appropriate for the abrasive slurry?
• What is the best sealing arrangement for the application?
Above all else, you need to make sure you have the right pump for the right slurry.
Types of slurry pumps. Different types of pumps should be selected according to the user’s on-site working conditions. Horizontal slurry pump is suitable for import with certain pressure, while vertical slurry pump is suitable for sump pool, and submersible slurry pump is widely used for fully submerged river/sea sand.
2. Material of slurry pumps. Depending on the application, variations in these materials may occur. For example, acidity can be made of A49, Cr30 or natural rubber. And for large particles and strong impact slurry, it is better to select metal wear-resistant material wet end parts, while for small particles and non sharp edges and corners slurry, it is better to select rubber material wet end parts or ceramic material.
3. Shaft seal type of slurry pump. There are three types of sealing method for slurry pump: gland packing, mechanical seal and expeller seal. The expeller seal is generally used under the backflow operation, and the pressure of the upper management should be less than 10% of the pump outlet pressure.
4. The selected slurry pump shall ensure good operation stability and safe and reliable operation. Therefore, the appropriate slurry pump should be chosen through the performance corresponding to a short curve after a certain point on the flow and head curve, and the motor power is calculated. The anti cavitation performance of the pump is good.
5. Motor selection for slurry pump. The motor power of the slurry pump should be 1.2 times of the shaft power of the slurry pump plus specific gravity factor, because the power loss may be caused by the friction between the slurry and the pump body and the overload operation during the operation of the slurry pump.
6. Transmission type of slurry pump. The driving mode of slurry pump includes V-belt driving, elastic coupling driving, gear reducer driving, hydraulic coupling driving, frequency conversion driving device and silicon controlled speed regulation. Among them, elastic coupling and V-shaped triangle belt are cheap and easy to assemble and disassemble, which should be preferred. But the V-belt will increase the power consumption by 5%.
