Ceramic Corundum Slurry Pump
High Wear Resistance for Aggressive Slurry Transport in Copper EW Plants
The Ceramic Corundum Slurry Pump is designed to handle highly abrasive slurries, making it an ideal choice for copper electrowinning plants and hydrometallurgical operations. It is built with high-purity ceramic-lined components, offering excellent resistance to wear, corrosion, and thermal shock. This pump effectively extends service life while maintaining consistent performance in demanding environments.
Aid & Wear Resistant Ceramic Slurry Pump for Harsh Mining Slurry
The ceramic corundum slurry pump is a heavy-duty slurry pump designed specifically for highly corrosive and high-abrasion mining slurry applications. It uses a "ceramic wetted surface + 316L stainless steel structural parts" dual-protection design, combining excellent corrosion resistance and wear resistance.
Developed for harsh conditions such as pH=2 strong acid copper oxide leaching slurry, this pump provides reliable long-term operation where ordinary metal or plastic pumps would degrade rapidly.
Design Logic: Dual Protection Structure
The pump follows a targeted material selection strategy:
- Wetted surfaces (direct slurry contact): Ceramic material - provides both strong corrosion resistance and high wear resistance
- Structural support & connection parts: 316L stainless steel - ensures mechanical strength while resisting sulfuric acid corrosion
This combination solves the common problem that single-material pumps face: metal pumps corrode too quickly in acid, while all-plastic pumps lack sufficient wear resistance for abrasive slurry.
Core Component Breakdown
- Integrated Pump Casing Assembly
- Structure: Ceramic liner (wetted side) + 316L stainless steel outer shell (structural support)
- Function: The ceramic liner directly contacts the slurry, resisting strong acid corrosion and particle abrasion. The stainless steel outer shell provides overall structural strength.
2. Impeller
- Structure: Ceramic main body + 316L stainless steel hub
- Function: The ceramic body provides wear and corrosion resistance. The central stainless steel hub solves the problem that ceramic cannot be directly fixed to the shaft, achieving reliable mechanical connection.
3. Rear Cover Plate
- Structure: Ceramic working face + 316L stainless steel base plate
- Function: The front ceramic surface contacts the slurry, resisting wear and corrosion. The back stainless steel base plate connects to the bonding plate, ensuring installation strength.
4. Expeller (Auxiliary Impeller)
- Material: Full 316L stainless steel
- Function: Serves as a dynamic sealing component, preventing slurry from leaking out of the pump chamber.
5. Relief Cap
- Structure: Ceramic liner + 316L stainless steel outer shell
- Function: Inner ceramic surface contacts the slurry for wear and corrosion resistance. Outer stainless steel shell ensures structural strength and reliable connection with other components.
6. Shaft Sleeve
- Material: Full 316L stainless steel
- Function: The rear cover plate, relief cap, expeller and other components are all mounted on the shaft sleeve (not directly on the pump shaft), protecting the main shaft from slurry corrosion and wear.
7. Bonding Plate
- Material: 316L stainless steel
- Function: Connects and fixes with the stainless steel base plate of the rear cover plate, forming a stable overall structure.
Technical Advantages of Ceramic Material
- Super wear resistance: Ceramic hardness is second only to diamond, significantly outperforming metal and plastic in abrasive conditions
- Excellent corrosion resistance: Withstands strong acid environments (except hydrofluoric acid)
- Low density: Lighter than metal impellers of the same volume, reducing motor load
- Precision molding: Near-net-shape molding technology ensures product consistency
- Long service life: Can operate stably for more than 6 months under pH=2 strong acid + high-abrasion slurry conditions
For more about our ceramic manufacturing process and quality control, see our production inspection and testing procedures.
Sealing Options:
| Seal Type | Features | Suitable For |
|---|---|---|
| Mechanical Seal | High machining precision, long service life, water-tight | High-pressure applications, strict leakage requirements |
| Packing Seal | Easy to replace, low maintenance cost | General working conditions, convenient on-site maintenance |
Technical Specifications
| Item | Parameter Range |
|---|---|
| Wetted Material | Ceramic corundum (liner) + 316L stainless steel (structure) |
| Applicable pH | 1 – 14 (except hydrofluoric acid) |
| Maximum Particle Size | Depends on specific model |
| Temperature Range | Depends on model and seal type |
| Seal Type | Mechanical seal / Packing seal (optional) |
| Drive Type | Direct drive / Belt drive (optional) |
| Typical Service Life | 6+ months under pH=2 strong acid + high-abrasion slurry |
Application Scenarios
- Copper oxide leaching slurry (pH≈2 strong acid environment)
- Gold and silver mining slurry transport
- Strong acid and high-abrasion slurry in hydrometallurgy
- Corrosive slurry handling in chemical and environmental industries
- Conditions where ordinary metal or plastic pumps have short service life
Typical Challenges Faced:
● Slurry pumps wearing out quickly due to acidic or abrasive conditions.
● High cost and difficulty sourcing ceramic-lined pumps from reliable suppliers.
● Incompatibility with existing pipelines or motor systems.
How We Help:
● Provide detailed technical drawings and material certificates upon request.
● Customize connection flanges and motor mounts to fit legacy systems.
● Offer full technical consultation for flow calculations and pump selection.
Packaging & Transportation
Fully enclosed with shock-absorbing padding and moisture protection.
Export-grade steel or wooden crate packaging depending on weight.
All parts labeled and sealed; shipping documents and manuals included.
FAQ
Q1: How does the ceramic pump compare with high-chromium pumps for acid slurry?
A: High-chromium pumps have good wear resistance but limited corrosion resistance in strong acid environments. Ceramic pumps combine both excellent wear resistance and acid corrosion resistance, making them more suitable for strong acid + high-abrasion conditions like copper leaching slurry.
Q2: Is ceramic brittle and easy to break?
A: Our ceramic material is specially formulated and produced with advanced sintering technology to improve toughness. Under normal operating conditions with proper installation, ceramic components have reliable mechanical strength. We also use the 316L stainless steel structural support design to further enhance overall reliability.
Q3: Can ceramic parts be replaced individually?
A: Yes. Ceramic components such as the liner, impeller and rear cover plate can be replaced individually when worn, without replacing the entire pump. This reduces maintenance costs.
Q4: What is the typical service life?
A: Under pH=2 strong acid copper leaching slurry conditions, the ceramic wetted parts can typically operate stably for 6 months or more. Actual life varies with slurry concentration, particle size and operating conditions.
Q5: Do you provide on-site installation guidance?
A: Yes. We can provide technical guidance for installation, commissioning and operation training. We also offer long-term spare parts supply and after-sales service.
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