Changsha Zoomlian Pump Co., Ltd. 长沙中联泵业股份有限公司

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    Corrosion-resistant UHB type mortar chemical pump
    Corrosion-resistant UHB type mortar chemical pump
    Corrosion-resistant UHB type mortar chemical pump
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    • Corrosion-resistant UHB type mortar chemical pump
    • Corrosion-resistant UHB type mortar chemical pump
    • Corrosion-resistant UHB type mortar chemical pump

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    Chemical Pump

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    Pump

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    Corrosion-resistant UHB type mortar chemical pump

    Flow: 5-500m³/h

    Lifting head: 7-80m

    Power: 0.75-110kw

    Rotational speed: 980, 1450, 2900r/min

    Shaft power: 0.72-103.2kw

    Price: 0.49-5.25 ten thousand

     

    The corrosion and wear-resistant UHB type slurry pump is a single-stage, single-suction chemical centrifugal pump with cantilever support, also known as a desulfurization pump, fluoroplastic slurry pump for engineering, filter press pump, designed and developed by Zhonglian Pump Industry to transport corrosive media containing fine particles.

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    Product description

    　　The UHB wear-resistant and corrosion-resistant slurry pump is a single-stage, single-suction chemical pump with cantilever support, also known as a desulfurization pump, fluoroplastic slurry pump, and filter press pump. It is specially designed and developed to transport corrosive media containing fine particles. The flow passage parts are lined with ultra-high molecular weight polyethylene (UHMWPE), a new generation corrosion and wear-resistant engineering fluoroplastic at an international level. Its highlighted advantages include excellent wear resistance, impact resistance (especially to low-temperature impacts), creep resistance (resistance to environmental stress cracking), and excellent corrosion resistance. Additionally, it uses a metal matrix structure that enhances the product's pressure capacity.

    The UHB slurry pump can adapt to various working conditions. For example, it can transport clear liquids or acidic and alkaline slurries, as well as various corrosive slurries in the metallurgical industry, and it can also transport various diluted acids in the sulfuric acid industry and different wastewater in the environmental industry. It can transport slurries with sulfuric acid concentrations below 80%, nitric acid below 50%, hydrochloric acid, and other acids, alkalis, and salts. It is also suitable for corrosive slurries in rare metal metallurgy and mixed media in the food and alcoholic beverage industry. This pump is both corrosion-resistant and wear-resistant, with a wide range of applications.

    　

    　　The UHB chemical pump has been used for a long time in more than thirty large non-ferrous metal foundries and sulfuric acid companies in acidic slurry and diluted acid positions. Its corrosion and wear resistance, sealing reliability, and service life have received very high evaluations.

    Product parameters

    Meaning of the model of the corrosion and wear-resistant mortar pump type UHB

    　　UHB-ZK80/50-30

    　　UHB: indicates a chemical pump made with polymer material

    　　80: indicates that the pump's inlet diameter is 80 mm

    　　Z: indicates that the pump can transport mortar with impurities

    　　50: indicates that the pump's flow rate is 50 m3/h

    　　K: indicates that the pump's impeller is semi-open

    　　30: indicates that the pump's lift height is 30 m

     

    Main characteristics of the corrosion and wear-resistant mortar pump type UHB

    　　The corrosion-resistant mortar pump type UHB is a pump that can adapt to various working conditions, such as the transport of acidic, alkaline liquids or slurries; various corrosive slurries in the metallurgical industry; several diluted acids in the sulfuric acid industry; and different wastewater in the environmental industry. This pump is both corrosion and wear-resistant, with a wide range of applications. It has the following characteristics:

    　　1) High wear resistance: all flow parts are made of ultra-high molecular weight polyethylene (UHMW-PE) coated with steel. The wear resistance of UHMW-PE is the best among plastics, four times higher than nylon 66 (PA66) and polytetrafluoroethylene (PTFE), and 7-10 times higher than that of carbon steel and stainless steel.

    　　2) High impact resistance: the impact resistance of ultra-high molecular weight polyethylene is the best among common engineering plastics, five times higher than acrylonitrile-butadiene-styrene copolymer (ABS), and can remain stable at -196 °C, a feature that no other plastic possesses.

    　　3) Excellent corrosion resistance: this pump can withstand various corrosive media (acids, alkalis, salts) and organic solvents within certain temperature and concentration ranges. It has been submerged for 30 days in 80 types of organic solvents at 20 °C and 90 °C without showing surface anomalies or significant changes in other physical properties.

    　　4) No noise: ultra-high molecular weight polyethylene has the highest impact absorption capacity among plastics, providing a good noise reduction effect, minimizing the noise generated by the liquid flow during transport.

    　　5) Safe and reliable, with no toxic decomposition: the ultra-high molecular weight polyethylene (UHMW-PE) used in this pump has extremely stable chemistry, making it suitable for use in the food industry.

    　　6) Low friction coefficient: the internal friction coefficient of this pump is only 0.07-0.11, giving it self-lubricating properties. Under water lubrication conditions, its dynamic friction coefficient is half that of PA66 and polyoxymethylene (POM). When working in sliding or rotating form, its lubricity is better than that of lubricated steel and brass.

    　　7) Good adhesion resistance: ultra-high molecular weight polyethylene (UHMW-PE) has excellent adhesion resistance, comparable to PTFE, making it effective for transporting media with high viscosity.

    　　Introduction to performance:

    　　1) The UHB type chemical mortar pump is corrosion and wear-resistant, versatile, suitable for acidic and alkaline liquids and slurries.

    　　2) The corrosion-resistant pump body is made of ultra-high molecular weight polyethylene coated with steel, with a coating thickness of 8 to 20 mm. This pump uses patented plastic coating technology, which offers advantages such as good resistance to thermal deformation, crack resistance, prevention of peeling, and high operating temperature compared to similar pumps.

    　　3) The impeller can be open or closed, and can be chosen according to the medium conditions.

    　　4) Sealing: K type mechanical sealing, K1 type mechanical sealing, T type packing sealing, T1 type packing sealing, non-standard C3 type sealing.

    　　5) Applicable media: sulfuric acid with a concentration of less than 80%, nitric acid less than 50%, hydrochloric acid of various concentrations, liquid alkalis, suitable for both clear liquids and slurries.

    　　4) Main technical parameters: operating temperature of -20 °C to 80 °C (with modified materials can increase to over 100 °C), inlet diameter of 32 mm to 350 mm, flow rate of 5 to 2600 m3/h, lift height within 80 m.

     

    Structural diagram and sealing structure of the corrosion and wear-resistant mortar pump type UHB

    Structural diagram of the UHB type chemical mortar pump

    　　
     
    (Left) K type mechanical sealing (Right) K type mechanical sealing with cooling water
    Sealing structure of the UHB type chemical mortar pump
     

    Applications of the corrosion and wear-resistant mortar pump type UHB

    　　1. The UHB-ZK chemical mortar pump is used in the phosphate fertilizer industry: transport of diluted acids, mother liquor, wastewater, seawater, fluorosilicic acid with silica, phosphoric acid slurry, and other media.

    　　2. The UHB-ZK chemical mortar pump is used in the metallurgy of non-ferrous metals: especially suitable for transporting various acids, corrosive slurries, slurries (for filter presses), electrolytes, and wastewater in the wet metallurgy of lead, zinc, gold, silver, copper, manganese, cobalt, rare earths, etc.

    　　3. The corrosion-resistant UHB-ZK mortar pump is used in the chemical industry and other enterprises: for clear liquids or slurries of various sulfuric acids, hydrochloric acids, alkalis, and oils. Production of titanium dioxide, red iron oxide, various dyes and pigments, processing of non-metallic minerals, among others.

    　　4. The UHB-ZK mortar pump is used in the chlorine and alkali industry: hydrochloric acid, liquid alkalis, electrolytes, etc.

    　　5. The UHB-ZK type mortar pump is used in water treatment: pure water, ultrapure water, wastewater (wastewater from tanning, electroplating, electronics, paper, textiles, food, domestic, pharmaceuticals, etc.).

    　　6. It is used in steel companies: sulfuric acid and hydrochloric acid in pickling systems, wastewater with impurities.

    　　7. The corrosion-resistant mortar pump is used for the wet desulfurization circulation pump: it can simultaneously adapt to alkaline, acidic, and corrosive positions.

    　　8. It is used for the transport of corrosive liquids and coal slurry in the coal industry and coal chemistry; combined pump for washing and selecting coal.

     

    Starting, operation, and maintenance of the chemical corrosive mortar pump

    　　1. Preparation before operation:

    　　Before the operation test, the coupling or shaft must first be manually turned to check if the rotation direction is correct and if the operation is flexible. If it cannot be turned or there are abnormal noises, it should be inspected in time. During the inspection, first manually check from the outside if the coupling is level, and observe through the oil mirror hole in the bearing support if the lubricant level is close to the center line of the oil mirror (if there is too much, a little should be drained; if there is too little, it should be added). While inspecting, turn the coupling. If the problem persists, the pump should be disassembled for inspection (when disassembling, refer to the structural diagram and disassembly procedure in this manual), clean foreign objects, and contact our factory to agree on a solution.

    　　2. Steps to start:

    　　a. Fill the pump with liquid

    　　b. Open the inlet valve in a timely manner (if the inlet and outlet valves are one-way check valves, no manual operation is required)

    　　c. Connect the power supply

    　　d. Open the purge valve

    　　3. Operation:

    　　If there are abnormal noises during operation or the motor heats up abnormally, the machine should also be stopped for inspection; the method and steps for inspection are the same as in point 1.

    　　4. Steps to stop the machine:

    　　a. First close the valve at the outlet

    　　b. Cut off the power supply and timely close the inlet valve (if the inlet valve is a one-way check valve, no manual operation is required)

    　　5. Maintenance

    　　a. The lubricating oil in the bearing support should be changed periodically, normally once every six months.

    　　b. In cold weather, if there is freezing after stopping the pump, the cooling water should first be connected at the seal; if necessary, hot water can be added to thaw, then manually turn the coupling until it operates flexibly, and then start according to the starting steps.

    　　c. For pumps with a cooling device, the cooling water should be connected before starting; during normal operation of the pump, it can remain connected; if conditions do not allow, it can also be turned off. There are no requirements for the flow and pressure of the cooling water, it can be tap water.

    　　d. The operation of the pump with the outlet valve closed is called the closed pressure operation state. The closed pressure operation time for fully plastic or lined pumps should be as short as possible; for media at room temperature, it should not exceed 5 minutes; for media at high temperature, preferably no more than 2 minutes.

    　　e. For pumps with a split casing, such as pumps with an inlet diameter greater than 50 mm, the sealing plastic on the split surface may change size due to thermal expansion and contraction. When installing, the connection screws of the split surface should be tightened first, then connect the inlet pipe to avoid leaks at the split surface. This rule is especially important for users in the north.

    　　f. The pump cannot support the weight of the inlet and outlet pipes; the inlet pipe should be as short as possible; the vertical distance from the pump outlet to the valve should be as short as possible.

    　　g. Ensure that there are no traces of water in the motor to avoid moisture in the motor.

     

    Disassembly and assembly procedure of the chemical mortar pump

    　　1. Pump without attached impeller (pump with inlet diameter ≤125 mm)

    　　Disassembly order: (refer to the structural diagram in this manual)

    　　a. Loosen the connection bolts between the pump body 5 and the pump cover, disassemble the pump cover

    　　b. Loosen the impeller cover 2 (left thread) and the anti-rotation nut 3 (left thread), disassemble the impeller 4

    　　c. Loosen the connection bolts between the pump body 5 and the bearing support 10, disassemble the pump body 5

    　　d. Loosen the connection bolts between the sealing box 6 and the pump body 5, disassemble the sealing box 6

    　　e. Unscrew the pressure back cover on the sealing box, take out the oil seal

    　　The assembly order is the reverse of the disassembly order, attention should be paid to the following:

    　　After tightening the impeller cover, check the gap between the impeller and the pump body; this gap should be approximately 2 mm.

    　　b. After installing the pump box, check the gap between the pump cover and the impeller (looking from the outlet inward); this gap should be approximately 2 mm; for pumps handling media at high temperatures, this gap should be approximately 2.5 mm.

    　　c. If the gap between the impeller and the pump body does not meet the requirements, it can be adjusted by adding or removing washers between the impeller and the shaft sleeve.

    　　d. If the space between the pump cover and the impeller does not meet the requirements, it can be adjusted by adding or removing washers between the pump body and the pump cover.

    　　2. Pump with attached impeller (pump with inlet diameter >125 mm)

    　　Disassembly order: (see the structural diagram in the manual)

    　　a. Loosen the connection bolts between the pump body 5 and the pump cover 1, disassemble the pump cover 1.

    　　b. Loosen the impeller cover 2 (left thread) and the anti-rotation nut 3 (left thread), disassemble the impeller 4

    　　c. Loosen the connection bolts between the pump body 5 and the bearing support 12, and the connection bolts between the sealing box 7 and the pump body, disassemble the pump body 5.

    　　d. Successively disassemble the attached impeller, the sealing box, the oil seal, and the shaft sleeve.

    　　The assembly order is the reverse of the disassembly order, attention should be paid to the following:

    　　a. After tightening the impeller cover and the nut behind the water retaining ring, check the space between the impeller and the pump body; this space should be approximately 2.5 mm.

    　　b. After installing the pump cover, check the space between the pump cover and the impeller (looking from the outlet inward); this space should be approximately 2 mm; for pumps handling media at high temperatures, this space should be approximately 2.5 mm.

    　　c. If the space between the impeller wheel and the pump body does not meet the requirements, it can be adjusted by adding or reducing gaskets between the impeller and the shaft sleeve.

    　　d. Pump cover: if the space between the cover and the impeller does not meet the requirements, it can be adjusted by adding or reducing gaskets between the pump body and the cover.


     

    Kind advice: For the performance parameters of the corrosion and wear-resistant slurry pump type UHB for the chemical industry, click on → 【Pump Selection】 for consultation.

    Changsha Zhonglian Pump Industry Co., Ltd.

    Why Choose Us?

    Changsha Zhonglian Pump Industry Co., Ltd. was established in 1989, following the reform of the Changsha Water Pump Factory. It is a national high-tech comprehensive enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Stock Exchange on December 31, 2019, with the abbreviated name "Zhonglian Pump Industry" and stock code: 600275HN. It is currently a key enterprise in China's centrifugal pump industry and one of the leading domestic manufacturers of multi-stage pumps, headquartered in Changsha, Hunan, a historical and cultural city in China.

    Changsha Zhonglian Pump Industry Co., Ltd.
    Changsha Zhonglian Pump Industry Co., Ltd.

    FAQ

    Q

    What products do you mainly produce?

    A

    Zoomlion Pump Industry manufactures various large industrial centrifugal pumps. The main products include: self-balancing multistage pumps, multistage centrifugal pumps, single-stage centrifugal pumps, split-case pumps, chemical pumps, submersible pumps, pipeline pumps, long-shaft pumps, condenser pumps, and more.

    Q

    Can you help me choose a model?

    A

    Of course! If the water pump model is not selected accurately, it can cause significant problems. After you take it back, it might be either too small to meet the usage requirements or too large, resulting in higher electricity and fuel costs, increasing the operating expenses.

    Q

    Why is the price quotation so slow?

    A

    Because centrifugal pumps are non-standard custom products with many models and a wide price range. Even for the same model, the price varies greatly depending on the materials and configurations used. Taking the most common pump accessory—the impeller—as an example, the price of a stainless steel impeller is several times that of a cast iron impeller. Therefore, we need to clearly confirm the relevant information to provide you with an accurate price. Normally, if you provide comprehensive information, we can quote within 5 minutes.

    Q

    What information should I provide when I need a quote?

    A

    Usually, if you want to get an accurate quote, it is recommended that you provide us with the following information: pump flow rate, head, on-site operating voltage, frequency, temperature of the conveyed liquid, pH value, solid particle content, on-site installation conditions (horizontal or vertical installation), and other related details. If you are not very familiar with these, it’s okay; our sales manager will assist you in determining them.

    Q

    Do you have centrifugal pumps in stock?

    A

    There are many models and configurations of centrifugal pumps. Except for a small number of commonly used standard models that are in stock, the vast majority of models and configurations are not stocked and are customized products. We need to first select the pump based on your site conditions such as flow rate, head, medium temperature, pH value, and installation conditions. After determining the pump model and configuration, we can then place an order with the workshop for production.

    Q

    What is your usual delivery time?

    A

    Models in stock can be shipped by the next day at the latest. Others are custom-made, and depending on the product size and specific project conditions, the delivery time is generally between 7-90 days. Please consult our sales manager for details: 0731-88632200 。

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