ZJL vertical slurry pump and SP submerged slurry pump are both vertical slurry pumps. Many customers are tangled about how to choose in the selection process. What are the similarities and differences between the two slurry pumps?

ZJL vertical slurry pump and SP submerged slurry pump have the same points:

1. ZJL vertical slurry pump and SP submerged slurry pump are both vertical slurry pumps and submerged slurry pumps. During operation, they need to be partially immersed below the liquid level in the pit.

2. They are basically used for the same purpose. Only in the habit of type selection, generally, ZJL slurry pump is mostly used for coal washing, and SP submerged slurry pump is mostly used for metal beneficiation.

3. Both belong to a single casing pump in the structure. During operation, the part above the support plate is above the liquid level, and the motor cannot be immersed in water. This is also an obvious sign different from a submersible slurry pump.

Differences between ZJL vertical slurry pump and SP submerged slurry pump

1. First of all, the pump casings of the two are different. ZJL vertical slurry pump has four pump body bolts and SP submerged slurry pump has three pump body bolts. This is the obvious difference between the two in appearance.

2. Secondly, generally, the impeller of ZJL vertical slurry pump is closed impeller, while the impeller of SP submerged pump is open type.

3. The wet-end parts of ZJL vertical slurry pump are only made of metal, and the wet-end parts of SP submerged pump are made of metal and rubber, so the application scope of SP submerged pump is wider.

4. ZJL vertical slurry pump is a product independently developed in China, and SP submerged slurry pump is a foreign technical product.

Slurry pumps belong to the category of centrifugal pumps. Slurry pump refers to a kind of machine that increases the energy of solid and liquid mixed medium by means of centrifugal force.

Centrifugal pumps work by rotating the impeller to cause centrifugal motion of water. Before the pump is started, the pump casing and the suction pipe must be filled with water, and then the motor is started, so that the pump shaft drives the impeller and the water to rotate at a high speed. into the pressurized water line of the pump.

The basic structure of a centrifugal pump is composed of eight parts, namely: impeller, pump body, pump cover, water retaining ring, pump shaft, bearing, sealing ring, stuffing box, and axial force balance device.

1. The impeller is the core part of the centrifugal pump. It has a high speed and a large output force.

2. The pump body is also called the pump casing, which is the main body of the pump. It plays the role of supporting and fixing, and is connected with the bracket on which the bearing is installed.

3. The function of the pump shaft is to connect the motor with the coupling and transmit the torque of the motor to the impeller, so it is the main component for transmitting mechanical energy.

4. The sealing ring is also called the leakage reducing ring.

5. The stuffing box is mainly made of stuffing, so that the water flow in the pump does not flow to the outside and the outside air does not enter the pump. Always maintain a vacuum inside the pump! When the friction between the pump shaft and the packing generates heat, the water seal pipe is used to inject water into the water seal ring to cool the packing!

6. Axial force balance device. During the operation of the centrifugal pump, since the liquid enters the impeller under low pressure and flows out under high pressure, the pressure on both sides of the impeller is unequal, resulting in an axial thrust directed towards the inlet. It will cause axial movement of the rotor, resulting in wear and vibration, so an axial thrust bearing should be installed to balance the axial force.

We offer a wide range of Sand Dredge Slurry Pumps that can be used to pump sand. A mixture of sand and water with up to 70% solids by weight is pumped. Sand and gravel are handled by pumping a mixture of liquid and particles of sand and gravel.

A sand pump can be used for a variety of tasks, including sand and gravel extraction, river dredging, harbor and marine construction, beach reclamation, and filling Geotubes. Sand pumps have multiple applications, which you can read about below.

Sand and Gravel Mining

One of the most popular methods of sand and gravel extraction is by dredging the river beds or the seabed. Sand is in great demand because it is used in concrete construction and for hydraulic fracturing (fracking) in oil or gas extraction. Our sand pumps are very successful in these applications.

Harbor Maintenance

Frequently, the seabed of harbors and marinas is raised due to sea currents and sedimentation in upstream effluents, making boat access difficult. Our sand pumps as well as our remote-controlled minidredges and cable dredges are convenient for harbor cleaning.

We offer a wide range of dredging pumps and accessories, you can find descriptions in our product section. In our section Slurry Pump Basics, you can learn more about sand pumps.

We can help you to choose the size of sand pump that best adapts to your requirements. We have a wide selection of Sand Dredge Slurry Pumps. We can provide sand pumps alone, packages that could be installed on existing dredges, and complete pumping solutions like remote-controlled dredges and cable dredges.

CNSME PUMP's website has been fully revamped and is now officially live! In addition to upgrading the website, we have also refreshed our company logo, presenting a more modern and professional brand image. As a leading supplier of slurry pumps and spare parts, CNSME PUMP is dedicated to providing efficient, durable pump products and customized solutions for global customers. Whether in mining, metallurgy, power plants, or other heavy industries, we offer high-quality pump equipment and accessories to support your needs. Visit our website to learn more and join us as we embark on an even brighter future!

Follow these three key instructions to determine the flow rate:

1. If the production process specifies minimum, normal, and maximum flow rates, use the maximum flow rate as the benchmark.
2. If only the normal flow rate is given, allocate a margin:

• For high-flow, low-head pumps (ns > 100), allow a 5% margin.
• For low-flow, high-head pumps (ns < 50), allow 10%.
• For pumps with 50 ≤ ns ≤ 100, use a 5% margin. Increase to 10% for poor-quality pumps or harsh conditions.

1. Convert weight-based flow rates to volumetric flow rates if necessary.

Accurate flow rate determination improves operational efficiency.