Shijiazhuang Ruite Pump Co., Ltd. is one of the most reliable manufacturers and suppliers of semi-submersible slurry pump in China. Welcome to wholesale durable semi-submersible slurry pump made in China here from our factory. All pumps are with high quality and competitive price.
Product Definition and Key Features
Vertical cantilever/single-stage single-suction design; semi-open impellers often feature agitator blades to stir sediment at the bottom of the tank; flow-through components are typically made of high-chromium alloy or wear-resistant rubber for abrasion and corrosion resistance;
The motor is positioned above the liquid surface, while the pump body and lower shaft section are submerged in the slurry, eliminating the need for complex self-priming devices and preventing dry-running issues;
The submerged section has no external shaft seal (relying on a liquid seal/isolation chamber), making maintenance simpler than for horizontal pumps; the immersion depth can be adjusted via brackets or piping.
Installation Method
Typically installed using a suspended mounting method, secured to the top of a tank, mixing tank, or cylinder via a mounting plate; the entire unit can be lifted out for removal.
Working Principle
The motor drives the impeller to rotate at high speed via a long shaft, creating negative pressure at the inlet to draw in the solid-liquid mixture. The centrifugal force of the impeller pressurizes and discharges the slurry; the stirring blades help prevent particle sedimentation and increase the concentration of the conveyed material.
Applications and Advantages
- Mining tailings, metallurgical slurries, power plant ash and slag, river dredging, sewage treatment plant sludge, etc.;
- Advantages: No priming required for startup, compact footprint, no risk of shaft seal leakage, capable of handling high-concentration media containing sand or particles;
- Limitations: Maximum immersion depth is limited; cannot handle deep tank applications.
Selection and Maintenance Guidelines
1. Select the flow parts material and pump type based on slurry concentration, particle size, temperature, and corrosiveness;
2. Never operate the pump under no-load conditions for extended periods; regularly check bearing temperature and oil level, and replace wear parts;
3. Ensure vertical alignment during installation to prevent shaft bending; install a strainer to prevent oversized foreign objects from jamming the pump.
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