The wear-resistant and corrosion-resistant vertical long axis suspended semi submersible sump sewage pump is a special vertical centrifugal pump specially designed for strong corrosion and high abrasion dual extreme working conditions. Its core advantage is that the overcurrent components are made of special corrosion-resistant and wear-resistant materials, while achieving resistance to acid and alkali corrosion and solid particle wear, with no mechanical seal and zero leakage. The vertical long axis suspended semi submersible sump sewage pump is the core conveying equipment for high-risk working conditions such as chemical smelting and mining environmental protection.
🔧  Core structural characteristics
Special corrosion-resistant and wear-resistant overcurrent material: The overcurrent components are made of ultra-high molecular weight polyethylene (UHMWPE), fluoroplastic alloy (F46/PVDF), high chromium alloy, silicon carbide and other materials that are molded or coated as a whole, and have excellent resistance to acid and alkali corrosion and solid particle wear.
Layout of Upside Dry Motor: The motor, bearings, and other non corrosion-resistant components are all arranged on the ground, and the impeller immersed in the liquid is driven to rotate by a vertical long shaft. The maintenance of the motor does not require downhole operations, completely avoiding corrosive gases from corroding electrical components.
No mechanical seal design: The pump body and impeller are completely immersed in liquid for operation, and the guide bearings are self-lubricating by the conveying liquid. Some models eliminate exposed mechanical seals to prevent leakage problems from the root, and are suitable for flammable, explosive, and highly corrosive media scenarios.
Double bearing lubrication system: The upper rolling bearings are lubricated with grease, while the lower liquid guide bearings can be made of self-lubricating materials such as silicon carbide and filled with polytetrafluoroethylene. The cleaning medium can achieve self-lubricating, and for particle containing conditions, it can be externally cooled and lubricated with water at a pressure of 0.2 MPa or above.
Modular combination design: The underwater depth can be flexibly adjusted according to the working conditions. The conventional version supports 0.6~2 meters, and the ultra long customized version can be extended to more than 6 meters, suitable for various deep water tank and underground storage tank working conditions.
Optional mixing function: Some upgraded models are equipped with a mixing blade at the bottom, which can mix the sediment under the liquid while conveying it, suitable for cleaning and conveying high concentration sediment slurry.
🏭  Main application scenarios
Non ferrous metal wet smelting: Transporting acid, alkali, corrosive slurry, electrolyte in wet smelting of lead, zinc, copper, rare earths, etc. The vertical long shaft semi submersible sump sewage pump is a standard conveying equipment in the smelting industry, which has been stably operated in more than 8000 positions of over 3000 users.
Chemical and Phosphate Fertilizer Industry: Transporting highly corrosive media such as dilute acid, mother liquor, fluorosilicic acid containing silica gel, phosphoric acid slurry, etc. The vertical long shaft semi submersible sump sewage pump is suitable for corrosive slurry transportation scenarios in fine chemical, pesticide, dye, pharmaceutical and other industries.
Environmental sewage treatment: transporting industrial sewage, sludge, and wastewater containing corrosive components. The vertical long axis semi submersible sump sewage pump is suitable for high corrosion sewage lifting scenarios in municipal sewage treatment plants and industrial park wastewater treatment stations.
Mining and metallurgical industry: transporting slurry waste, metallurgical waste liquid, and acidic wastewater containing heavy metals. The vertical long shaft semi submersible sump sewage pump made of high chromium alloy material can resist the erosion of high abrasive particles and greatly extend the service life of equipment.
Special working condition scenarios: Spray tower liquid circulation, strong corrosive medium transportation in the tank, tank pumping, vertical long axis semi submersible sump sewage pump suitable for medium transportation in industries such as electroplating, printing and dyeing, and waste gas treatment.
✨  Core operational advantages
Double corrosion and wear resistance: Special materials achieve both strong acid and alkali corrosion resistance and solid particle wear resistance, with a service life 2-3 times longer than ordinary stainless steel submersible pumps. They can stably transport high concentration slurries containing a large amount of solid particles for a long time.
Zero leakage safe operation: with no exposed mechanical seal design, it eliminates the safety hazards of strong corrosive media spraying from the root, fully meeting the safety requirements of high-risk scenarios such as chemical and hazardous waste.
Extremely reliable start-up: The impeller is always completely submerged below the liquid level, achieving self filling water supply throughout the entire process. Water can be discharged immediately upon start-up, completely eliminating the risk of start-up failure caused by suction and cavitation in ordinary centrifugal pumps.
Low land occupation and infrastructure costs: The vertical structure is directly installed on the top of the water tank and tank body, requiring only a small amount of foundation installation and no additional large space pump room. The infrastructure investment is reduced by more than 40% compared to horizontal corrosion-resistant pumps with the same parameters.
Convenient and safe maintenance: The motor is located on the ground, and daily inspections and maintenance do not require going underground. The large pitch threaded connection design does not require metal fastening screws, and there is no concern of corrosive damage, making installation and maintenance more convenient.
Key operating taboos: Before starting the vertical long axis semi submersible sump sewage pump, it is necessary to ensure that the liquid level is about 180mm above the centerline of the impeller, and the pump body is completely immersed in the liquid. Dry operation is strictly prohibited; The outlet pipeline should be supported by additional brackets, and the weight of the pipeline should not be pressed on the pump body. Regularly check the temperature rise of the bearings and the tightening of screws.