fuyangby@126.com
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fuyangby@126.com
86 15188770013
The selection of slurry pumps in different industries is mainly based on the working conditions (such as medium concentration, particle size, corrosiveness, etc.) to make differentiated choices in pump type, material, and performance parameters.
Slurry pumps are widely used in various industries such as mining, power, metallurgy, coal, and environmental protection to transport slurry containing abrasive solid particles. Due to the significant differences in the characteristics of slurries processed by various industries - for example, mineral processing plants face high concentration coarse particle slurries, while thermal power plants mostly use a mixture of coal ash and slag - customized design must be carried out for specific operating conditions when selecting. Scientific and reasonable selection can not only prolong the service life of equipment, but also significantly reduce energy consumption and maintenance costs.
Analysis of Key Points for Differentiated Selection
Mines and beneficiation plants
The working conditions are harsh, with high slurry concentration, large particles, and high hardness, requiring extremely high wear resistance for the pump. AH or M-type heavy-duty slurry pumps are usually selected, and the flow components are made of high chromium cast iron or hard nickel alloy; The flow rate should be selected between 40% and 80% of the highest efficiency zone of the pump to avoid overload operation.
thermal power plant
Mainly used in hydraulic ash removal systems, the medium is a mixture of ash and water with low concentration but requires continuous and stable operation. HH type high lift pump or L-type light pump can be selected; If there is backflow pressure, priority should be given to sealing the secondary impeller to achieve leak free operation.
coal washing plant
Large blocks of coal and coal gangue are prone to blockage, requiring pumps to have good passability and anti blocking performance. SP (SPR) type submersible pumps or open impeller structures are commonly used, with a grille installed at the inlet to prevent excessive material from entering.
River dredging and seawater sand selection
In practical applications, it is often referred to as a "dredging pump" or "sand pump". Although the names are different, the principle belongs to the category of slurry pumps. AHP multi-stage series pumps should be used for long-distance transportation to improve the head capacity; Attention should also be paid to the corrosion resistance of materials in seawater environments.
chemical industry
The conveying medium may contain acid, alkali, or crystalline substances, emphasizing corrosion resistance in addition to wear resistance. Rubber lined pumps or special alloy materials (such as A49) should be selected and equipped with mechanical seals to prevent harmful liquid leakage.
Conclusion
The differences in the selection of slurry pumps in different industries are mainly reflected in the pump type, material, and sealing method driven by the characteristics of the medium. The correct selection should be based on five elements: rheological properties of solid-liquid mixtures, particle parameters, pump structure and hydraulic parameters, speed control, and material properties. Among them, material performance is the primary factor affecting the service life of the pump, followed by medium characteristics and pump structural design. It is recommended that users have a capable manufacturer provide a working condition analysis and professional selection plan before procurement to ensure long-term stable operation of the equipment.
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