Shijiazhuang Ruite Pump Co., Ltd. is one of the most reliable manufacturers and suppliers of underflow slurry pump in China. Welcome to wholesale durable underflow slurry pump made in China here from our factory. All pumps are with high quality and competitive price.
Key Functions
Its primary function is to continuously and stably extract the high-concentration, high-density solid-liquid mixture (i.e., the "underflow") that has settled at the bottom of the equipment after concentration and transport it to the next process stage, such as:
- Transporting it to a filter press for dewatering
- Transporting it to a tailings pond for storage
- Recirculating it for reuse
Key Features
High wear resistance
The pumped underflow slurry typically contains high-hardness solid particles, so the pump's flow-passing components (such as the impeller, volute liner, and wear rings) must be made of high-quality wear-resistant materials (e.g., high-chromium alloys, rubber linings).
01
Excellent corrosion resistance
Certain slurries (such as acidic mineral slurries and chemical slurries) are corrosive, requiring the selection of appropriate corrosion-resistant materials.
02
Capable of handling large particles
The pump's structure (particularly the impeller passages) must be sufficiently large to prevent blockage by large sediment chunks.
03
Stable operation and excellent cavitation resistance
Due to the high concentration and specific gravity of the slurry being transported, the pump requires more powerful drive and optimized hydraulic design to prevent cavitation and ensure continuous, stable operation.
04
Easy maintenance
Heavy-duty slurry pumps are typically designed with replaceable wear-resistant linings and open type impellers, facilitating repairs and replacements after wear and reducing maintenance costs.
05
Common Types
Horizontal centrifugal slurry pumps
The most common type, featuring a mature design, high efficiency, and easy maintenance. Based on wear-resistant configurations, they can be further classified as.
Metal liner slurry pump
Flow-passing components are made of metal wear-resistant materials such as high-chromium alloys, suitable for conveying slurries with sharp particles and extremely high abrasiveness.
Rubber Liner slurry pump
Flow-passing components are made of wear-resistant rubber, offering excellent wear and corrosion resistance, particularly suitable for conveying slurries with moderate corrosion and relatively smooth particles.
Vertical slurry pumps
The motor is located above the liquid surface, while the pump body is submerged at the bottom of the thickener tank to directly draw the underflow. Advantages include a compact design and no need for priming, but maintenance is slightly more complicated than with horizontal pumps.
Key Selection Parameters
- When selecting an underflow slurry pump, the following factors should be prioritized:
- Flow rate (Q): The volume of slurry to be conveyed.
- Head (H): The total head required to overcome pipeline resistance and lift height.
- Slurry Concentration (Cw): The weight percentage of solid particles in the slurry. Underflow concentrations are typically very high, making this a key parameter in determining pump type and power rating.
- Solid Particle Characteristics: Particle size, distribution, hardness, and shape (sharp or smooth).
- Slurry pH: Determines the required corrosion resistance of materials.
The underflow slurry pump serves as the "heart" of the solid-liquid separation process, and its performance directly impacts concentration efficiency, production continuity, and operating costs. Selecting an underflow slurry pump that is well-suited to the operating conditions (high concentration, high abrasion, continuous operation) is crucial for the stable and efficient operation of the entire production system.
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