The following safety information related to pump operation and maintenance should be carefully followed and proper procedures followed to avoid personal injury and equipment damage. All statutory requirements related to this equipment must be complied with at all times.


Do not apply heat to the impeller hub or air intake to aid in impeller removal. Heating may cause impeller crushing, injury or equipment damage.


Do not run the pump at zero or very low flow for extended periods of time. Failure to follow this warning may result in overheating of the pump and evaporation of the pumped fluid, creating very high pressures. Such actions could result in serious personal injury or equipment damage.


Check drive motor rotation before installing drive belts or couplings. Incorrect motor rotation may result in personal injury or equipment damage.


Do not put very hot or very cold fluid into the pump at ambient temperature. Thermal shock can cause the wet end parts of the pump to break. Pumps must be considered rotating machinery and pressure vessels. All relevant safety precautions and procedures for this type of equipment should be followed during installation, operation and maintenance of the pump.


In the case of auxiliary equipment associated with the pump (e.g. motors, belts, drive couplings, reducers, variable speed drives, etc.) during installation, operation and maintenance, all relevant operating instructions should be consulted and recommended procedures should be followed.

A slurry pump is a mechanical device used to transport liquids containing solid particles. It is widely used in mining, metallurgy, coal, electric power, chemical industry and other industries. The main function of a slurry pump is to transport slurry from one place to another. It is capable of transporting liquids containing high concentrations of solid particles, such as slag, coal cinder, ash, etc. The main components of the slurry pump include pump body, impeller, bearing, sealing device and so on.


With the continuous advancement of the industrialization process, the demand for slurry pumps continues to increase. Especially in mining, metallurgy and other industries, the demand for slurry pumps is increasing day by day. Therefore, the market prospect of the slurry pump industry is very broad.


With the continuous advancement of science and technology, the technology of slurry pumps is also developing. At present, the technology of slurry pump has become more and more mature, and its performance has been continuously improved. For example, some new slurry pumps adopt a high-efficiency and energy-saving design, which makes the pump more efficient and consumes less energy. At the same time, the application of some new materials also makes the service life of the slurry pump longer.


In general, the development prospect of the slurry pump industry is very broad. In the future, with the continuous development of science and technology, the technology of slurry pump will be more mature and its performance will be more superior. At the same time, with the continuous improvement of environmental protection awareness, the green environmental protection performance of slurry pumps will also receive more attention. Therefore, the slurry pump industry will usher in a broader development prospect.


A slurry pump is a pump used to transport high-concentration mixtures containing solid particles. According to different usage scenarios and needs, slurry pumps can be divided into many different classifications or types.


1. Horizontal centrifugal slurry pump: This is the most common type of slurry pump, mainly used to transport high-concentration slurry. The pump has a compact structure, smooth operation, and can withstand high pressure and large flow.




2. Vertical submerged slurry pump: This type of pump is usually installed in deep wells to pump groundwater and transport slurry. It has a smaller footprint and higher operating efficiency.





3. Heavy-duty slurry pump: This type of pump has a stronger structure and is suitable for transporting denser slurry, such as coal gangue and sludge.





4. Slurry pump: Similar to the slurry pump, the slurry pump is also a pump used to transport high-concentration mixtures containing solid particles. The difference is that mud pumps are usually used in drilling, prospecting and other processes in oil and gas industries.


In short, the slurry pump has a wide range of application fields and a variety of product categories, which can meet the needs of different users.

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.

Reason I: Impeller unbalanced


Wear and clogging of the impeller will cause the uneven distribution of the impeller mass and then lead to vibration. Impellers should be checked and maintained at a regular time basis.


Reason II: Unreasonable assembly of bearings


Re-assemble the bearings onto the shaft, or change the bearings.


Reason III: Inadequate lubricants for the bearings


Too much or too little of the grease or oil or contaminated grease or oil will cause the short life of the bearings. Take out the bearings and use them again only after cleaned up.


Reason IV: Asymmetry or non-parallel of the motor shaft and the pump shaft


Adjust the motor shaft or the pump shaft, replace with a new shaft if the current one is deformed or bent.


Reason V: Uneven feeding of materials


Uneven feeding of materials or big solids entering will cause unstable flow inside the pump chamber, keep an even slurry feeding and protect large solids from entering into the pump.


Reason VI: Cavitation


Too low pressure inside the pump will generate bubbles and when the bubbles break, there will be vibration and noise. Raise the pump suction liquid level to increase static head.


Reason VII: Loose of the foundation or spare parts or incorrect installation


Loosened foundation or internal or external pump parts will cause vibration during pump operation. Check and maintain the slurry pump regularly.