Guide to Buy Slurry Pump Parts Manufacturers in CNSME PUMP

A collection of common problems with slurry pumps for customers to read. CNSME Slurry Pump Company has received feedback from customers before asking our technicians what issues should be paid attention to when using slurry pumps?In fact, slurry pumps are suitable for a variety of complex working conditions. The working characteristics of slurry pumps are that the slurry processed mostly contains various solid particles, which requires us to know more about the precautions for use in daily operations. Today we will talk about the precautions for use of slurry pump ore dressing.1. Maintenance of shaft seals for slurry pump ore dressing. The shaft seal pump should regularly check the seal water pressure and water volume when dressing the slurry pump, and always keep a small amount of clean water flowing along the axis. Regularly adjust the filler gland, check the filler and replace the filler regularly. The shaft seal water pressure and the shaft seal water volume should meet the above requirements (shaft seal inspection).For secondary impeller shaft sealing pumps equipped with oil cups, oil should be regularly filled with oil cups to lubricate the internal filler or lip sealing ring.2. Adjustment of impeller for slurry pump ore dressing　In order to ensure the pump operation, the gap between the impeller and the front guard plate must be adjusted in time. The gap between the metal-lined pump impeller and the front guard plate is between 0.5-1mm, and the gap between the rubber-lined pump impeller and the front and rear sheath must be equal.3. Use bearing lubrication when slurry pump ore dressing. When slurry pump ore dressing, the operating life will be longer if the assembly is correct, the lubricating oil is appropriate, and the maintenance is timely. Maintenance personnel should regularly inspect the bearing components and check the conditions of bearings and greases. The maintenance interval generally does not exceed 12 months.Slurry pumps are widely used in important basic departments such as mining, metallurgy, coal, hydraulics and transportation. During the process of transporting solid-liquid mixtures such as slurry, cinders and mud, they are impacted by solid particles, and their overflow parts cause severe wear, resulting in a shortening of the service life of the slurry pump and affecting the normal operation of the equipment.Therefore, reducing the wear of the slurry pump overflow parts is the key in actual production.Generally, in practical applications, the main measures to reduce the wear of the slurry pump overflow parts are as follows: 1) Use reasonable impeller geometric parameters: In order to meet the required head and reduce wear, a larger blade inlet diameter and outlet width are selected, which reduces the relative speed at the inlet of the impeller, reduces the wear of the impeller, and prevents blockage.2) Reasonable matching of volute shell and impeller: If the shape of the slurry pump volute shell is unreasonable, it will accelerate wear. When designing, you should consider matching with the impeller. While meeting the pump performance, try to keep the liquid flow rate in the volute as small as possible, otherwise the wear will be very serious.3) Reasonable selection of materials for considering the characteristics of the medium: The service life of the slurry pump is largely related to whether the selected material is appropriate.During the material selection process, the geometry and particle size of the solid particles in the slurry should be fully considered. If the solid particles are small and have regular shapes, the particles are evenly distributed and there are no sharp sharp objects, non-metallic materials such as rubber and engineering plastics can be selected to ensure good wear resistance while also reducing costs.When the geometry of solid particles in the slurry is extremely irregular and the particle size composition is widely distributed, materials with high hardness and good wear resistance should be selected, such as hard nickel and high chromium cast iron materials, because such materials have certain advantages in resisting the wear of solid particles in the slurry.4) Adopting a reasonable anti-wear structure: Adopting a reasonable structure is an effective way to slow down the wear of the slurry pump.For example, setting up linings, thickening bushings and impellers, setting up secondary blades and secondary impellers can also reduce wear.There are three functions of cooling water in the slurry pump, namely cooling, cleaning, and lubrication and maintenance.So how to grasp the cooling water usage in the slurry pump?The cooling water usage of slurry pump is affected by the machine seal type, pump type, and pump pressure factors. Let’s talk about the rules and reasons of the influence of these three factors: 1. Mechanical seal of slurry pump. There is a mechanical seal of slurry pump. In this case, there is no need to add cooling water.Both internal flushing mechanical seals and external flushing machine seals require cooling water with a slurry pump.2. Slurry pump type factors The amount of cooling water for the slurry pump gradually increases as the pump type increases, that is, the larger the pump type, the greater the cooling water for the slurry pump.3. Slurry pump pressure factors The greater the pump pressure, the greater the cooling water used in the slurry pump, which is proportional to the pressure.In view of the above three situations, the cooling water consumption of the slurry pump is affected by the pump parameters. The specific usage reference table is too complicated and will not be listed one by one here. If you have any specific questions, please contact our customer service for you. Of course, if there are other knowledge that slurry pumps want to know, you are welcome to call and we will answer them one by one!

According to the design principle of the slurry pump, the slurry pump is a type of centrifugal pump, so we can refer to the concept and calculation of the centrifugal pump head.Definition of slurry pump head The head of a centrifugal pump, also known as the pressure head of a pump, refers to the height at which the water pump can raise water, and can be understood as the energy obtained by a unit weight of fluid through the pump.The head size of the pump depends on the pump structure (such as the size of the impeller diameter, the bending condition of the blade, etc., and the rotation speed).At present, accurate calculations of the pump pressure head cannot be made in theory. It is generally measured by experimental methods to obtain the performance curve of the pump, and then the slurry pump selection calculation is performed based on the performance curve of the pump.The head, flow rate and power of the water pump are important parameters for examining the performance of the water pump.Note: The lift of a centrifugal pump is different from the lifting height (lifting height). The lifting height of the pump refers to the vertical height where the pump sends liquid from a low place to a high place.Only when the pump's inlet and outlet containers are at 0.1MP, the inlet and outlet pipe diameters are the same and the pipeline resistance is negligible, will the pump's head be equal to the lifting height.How to calculate the head of the slurry pump?Answer: The energy obtained by liquid per unit weight through the pump is called the head.The head of the pump includes the suction range, which is approximately the pressure difference between the pump outlet and inlet.H\u003d(p2-p1)/\u0026rho;g+(c2^2-c1^2)/2g+z2-z1　　Where H\u0026mdash;\u0026mdash;Head, m;　　p1, p2\u0026mdash;\u0026mdash;Pressure of liquid at the inlet and outlet of the pump, Pa;　　　c1, c2\u0026mdash;\u0026mdash;Flow rate of fluid at the inlet and outlet of the pump, m/s;　　z1, z2\u0026mdash;\u0026mdash;Inlet and outlet height, m;　　\u0026rho;\u0026mdash;\u0026mdash;Liquid density, kg/m3;　g\u0026mdash;\u0026mdash;Graining acceleration, m/s2.The pressure of the pump is expressed in P, and the unit is Mpa (megapas), H\u003dP/\u0026rho;. If P is 1kg/cm2, then H\u003d(lkg/cm2)/(1000kg/m3)　　H\u003d(1kg/cm2)/(1000kg/m3)\u003d(10000kg/m2)/1000kg/m3\u003d10m1Mpa\u003d10kg/c m2,H\u003d(P2-P1)/\u0026rho; (P2\u003doutlet pressure P1\u003dinlet pressure)　　The head of the centrifugal pump is based on the center line of the impeller and is composed of two parts.The vertical height from the center line of the water pump impeller to the water source surface, that is, the height where the water pump can suck water, is called the water suction head, abbreviated as the suction head; the vertical height from the center line of the water pump impeller to the water outlet surface, is the height where the water pump can suck water, is called the pressurized water head, abbreviated as the pressure stroke.That is: water pump head \u003d water suction head + pressurized water head It should be pointed out that the head marked on the nameplate refers to the head that the water pump itself can generate, and it does not contain the loss of head caused by frictional resistance of the pipeline water flow.When choosing a water pump, be careful not to ignore it.Otherwise, you will not be able to pump water.Pump head \u003d net head + head loss. Purchase head refers to the height difference between the suction point of the water pump and the high control point, such as pumping water from a clean water tank and sending it to a high water tank.A clean head refers to the height difference between the suction port of the clean water pool and the water tank at a high place.

In the industrial production process, the environmentally friendly horizontal slurry pump is a key fluid delivery device, and its selection directly affects production efficiency, operating costs and environmental performance.With the increasingly stringent environmental protection requirements, it is particularly important to choose a slurry pump that is both efficient and environmentally friendly.　This article will provide you with a comprehensive guide to selecting environmentally friendly horizontal slurry pumps to help you choose the right one among the many products.　　1. Clarify the working conditions and requirements　　Before selecting, the working environment and requirements of the slurry pump must be clarified.Understand the key parameters of the slurry composition, concentration, temperature, flow rate and head to select the slurry pump with the right specifications and performance.At the same time, factors such as operational convenience, maintenance costs and after-sales service must be considered.　　2. Material selection　　The material selection of slurry pumps has an important impact on their corrosion resistance, wear resistance and service life.During the selection process, materials with high strength, wear and corrosion resistance should be preferred, such as stainless steel, engineering plastics, etc.These materials can maintain good performance under harsh working conditions and extend the service life of the pump.　　3. Pump type and power selection　　Select the appropriate pump type and power according to actual needs.For working conditions with small flow and high head, a single-stage pump should be used; for working conditions with large flow and moderate head, a multi-stage pump can be used.In terms of power, the required power needs to be calculated based on the actual working conditions parameters to ensure that the slurry pump operates in the efficient zone and avoid energy waste.　　4. Sealing and lubrication　　Sealing and lubrication systems are key parts of slurry pumps, which directly affect the performance and service life of the pump.During the selection process, attention should be paid to the selection of sealing materials, such as rubber, polytetrafluoroethylene, etc., to meet the requirements of different working conditions.At the same time, a good lubrication system can reduce friction resistance and improve the operating efficiency of the pump.　　5. Environmental protection performance　　With the increase in environmental awareness, it has become a trend to choose slurry pumps with environmental protection performance.Prefer products with low noise, low energy consumption and low emissions to reduce the negative impact on the environment.In addition, it is necessary to pay attention to the recycling and reuse capabilities of the pump to achieve the maximum utilization of resources.To sum up, choosing a suitable environmentally friendly horizontal slurry pump requires comprehensive consideration of many factors.From working conditions, material selection, pump type and power, sealing and lubrication, environmental protection performance to after-sales service and technical support, every link is related to the success or failure of the final choice.By following this selection guide, you will be able to easily select slurry pumps that meet actual needs and have excellent environmental performance.