When purchasing a slurry pump, the Slurry Pump Supplier will learn from the customer about the operating environment of the pump and the slurry pumped, etc., so as to recommend the most suitable pump type to the customer to ensure the The pump can last longer in its post. This is what we often call slurry pump selection. The following will introduce you to what aspects are related to the choice of slurry pump:

1. First determine which slurry pump to choose according to the working conditions

The working conditions mentioned here are understood as application industries, such as: mineral processing, coal processing, sand pumping, etc. (This step is very important, and it is also a prerequisite for selection)

2. Flow and head are the two most basic parameters for pump selection:

a: Preliminarily determine the general situation of the pump through the working conditions, such as which series model or whether to consider the material, etc.

b: After determining the series model of the pump, read the performance curve through the flow and head to determine the specific model and size of the pump.

c: Read the curve, calculate the power: The parameters that must be known in the calculation of the shaft power of the pump include flow rate, head, efficiency, and slurry specific gravity; efficiency (η) is determined by the flow rate and head, which can be read out by reading the performance curve; What cannot be provided is only through experience points. Generally (between 1-2), an estimated value will be given to calculate the power during technical calculation.

d: Calculated shaft power P=m*g*h/η Its derivation formula: P=ρ*Q*H/102η (pay attention to the use of safety factor in actual calculation)

e: motor power, the motor power which is the nearest and larger than the shaft power is taken as the final motor power by the shaft power.

More parameters: working condition flow head. Slag specific gravity. Specific gravity of solids. concentration. Ph temperature.

According to the basic process of A, except that in step C, the specific gravity parameter of the slurry is directly provided by the customer, or the specific gravity of the slurry is calculated by the specific gravity and concentration of the solid.

The weight concentration generally mainly considers the degree of abrasiveness of the slurry. For a certain kind of slurry, the higher the concentration, the higher the abrasiveness will be, and the higher the specific gravity of the slurry. Therefore, we have the concept of Heavy-Duty Slurry Pumps, neutral, and light-duty slurry pumps, which is based on the content of the slurry. There is no strict limit.

Ph value is one of the material factors that we judge to select the overcurrent parts of the pump (generally, the pH value of 5-12 considers the range of metal overcurrent parts, and the rest of the range considers rubber or other special materials. Here is also the theoretical numerical range that cannot be dead. set, to be flexibly applied);

Temperature is also one of the factors to determine whether the material can be used. Generally, temperature is a factor that is rarely considered in most cases, but sometimes there are special conditions that require temperature.

3. Detailed parameters

Working conditions, flow, lift, specific gravity of slurry, specific gravity of solids, concentration of pH, temperature, D50, D80, pipeline (pipeline, elbow, valve, taper (contraction, expansion), viscosity, etc.

It is still the basic process according to the first, but in this kind of detailed parameters, it is generally the bidding project, or the client is very special, so that so many detailed parameters can be provided. In general, the parameters that can be provided to two are already detailed. For some large projects and large bids, special design units or departments will provide customers with a detailed data, so it is possible to provide three levels of detail. In fact, this detailed parameter is mainly to increase the parameters of the pipeline, and the pipeline is the parameter of calculation (dynamic lift). Generally, many customers cannot provide detailed pipeline conditions, or the pipeline is simple, so they are ignored and directly provide a The head is only the head, so we don't need to forget it, but once the detailed pipeline is provided, we need to calculate the dynamic head by ourselves. The specific calculation of the dynamic head is relatively complicated, but there are ready-made formulas to apply.

For slurry pump selection, please contact CNSME - a Slurry Pump Manufacturer from China. welcome letter [email protected] ! 

     Today, I saw that some customers came to the company's website www.cnsmepump.com through centrifugal slurry pumps. I must have a lot of doubts in my heart. What is the difference between centrifugal slurry pumps and slurry pumps?

     In fact, in principle, the slurry pump belongs to a centrifugal pump. Because the working principle of the slurry pump is to use the centrifugal force of the impeller to achieve the conveying of the slurry.

      Most centrifugal pumps are mainly used to transport media with physical properties similar to water, that is, no particles, or particles are very small.

The main working parts of the centrifugal pump are the impeller and the pump housing, the impeller is mounted on the shaft, and is connected with the motor or other prime movers to form a whole. When the motor drives the impeller to rotate, the blade in the impeller forces the slurry to rotate, that is, the blade of the impeller does work on the slurry along its direction of movement, thus forcing the potential energy and kinetic energy of the slurry to increase. At the same time, the slurry under the action of inertial force, flows from the center to the periphery of the impeller, and flows out at a very high speed, this process is the pressure water process. The centrifugal pump relies on the action of the rotating impeller on the liquid to transfer the mechanical energy of the prime mover to the liquid.

     Due to the role of the centrifugal pump liquid flow from the impeller inlet to the outlet process, the speed and pressure energy are increased, the liquid discharged by the impeller through the pressure chamber, most of the speed can be converted into pressure energy, and then transported out along the discharge pipeline, at this time, the inlet of the impeller due to the discharge of liquid to form a vacuum or low pressure, The liquid in the suction pool is pressed into the inlet of the impeller under the action of the liquid surface pressure (atmospheric pressure), so the rotating impeller continuously inhales and exhautes the liquid. In fact, the slurry pump is also through the centrifugal force formed by the impeller rotation to transport the slurry. So the slurry pump is also a centrifugal pump. In this way, the relationship between the slurry pump and the centrifugal pump will be clear.

     The reason why the slurry pump is called the slurry pump is defined from the conveying medium. As the name suggests, the slurry transported by the slurry pump is a mixture of solid particles containing slag and water.

CNSME is a professional slurry pump manufacturer and supplier offering all types of slurry pumps. Every time the customer sees the production and assembly of the slurry pump, today we look at how the slurry pump is installed.

China slurry pump supplier is pleased to announce that we will be participating in the mining expo scheduled to take place in Canada from March 3rd to 6th, 2024. The expo will be held at the Metro Toronto Convention Centre and is organized by the Prospectors & Developers Association of Canada.

As a key player in the mining industry, we look forward to showcasing our latest products and solutions at this important industry event. The expo will provide us with an excellent opportunity to network with peers, learn about the latest industry trends, and establish business connections.

Our team will be on-site during the expo, engaging with industry professionals and attendees from around the world, sharing our expertise and experience. We will be showcasing our advanced technologies and innovative products to meet the evolving needs of our customers in the mining sector.

We invite all those interested in the mining industry to visit our booth, interact with us in person, and learn more about our company. We look forward to discussing the future of the mining industry and exploring potential collaboration opportunities together.

For more information about our participation in the expo, please feel free to contact us or visit our website.

We look forward to seeing you at the expo!