CF Ceramic Disc Filter for Highly Viscous and Ultrafine Copper Tailings

Highly viscous and ultrafine copper tailings are difficult to dewater because fine particles can block the filtration surface, reduce vacuum stability and make filter cake discharge more difficult.

This video shows how Hesheng's CF vacuum ceramic disc filter is configured to address these challenges through gradient-pore ceramic plates, high-pressure pneumatic backwashing, online ultrasonic cleaning and corrosion-resistant vacuum components.

Filtration Challenges of Ultrafine Copper Tailings

Copper-tailings slurry with high viscosity and a large proportion of ultrafine particles can create several operating problems:

• Rapid blockage of ceramic pores

• Declining filtration capacity

• Unstable vacuum conditions

• Difficult filter cake discharge

• Frequent cleaning and maintenance

• Crystallization inside vacuum pipelines

• Corrosion caused by sulfate and chloride ions

Conventional disc or drum filtration systems may struggle to maintain stable performance when these conditions occur simultaneously.

Hesheng's CF Ceramic Disc Filtration Solution

Gradient-Pore Ceramic Plates

The CF ceramic disc filter uses sintered white fused alumina ceramic plates with an optimized gradient pore-size surface.

The surface structure is designed to reduce the penetration of ultrafine particles into deeper ceramic pores while maintaining liquid permeability during filtration.

This helps reduce pore blockage and supports more stable filtration performance.

High-Pressure Pneumatic Backwashing

After cake discharge, high-pressure pneumatic backwashing removes retained particles from inside the ceramic pores.

The system helps limit the gradual decline in filtration rate that can occur during continuous operation.

Online Ultrasonic Deep Cleaning

An integrated ultrasonic cleaning system provides deeper ceramic-pore cleaning when normal backwashing is insufficient.

Online cleaning helps restore plate permeability and reduce the need for frequent manual cleaning or production shutdowns.

Anti-Crystallization Vacuum Piping

Copper-tailings slurry may contain sulfate and chloride ions that can contribute to crystal and deposit formation.

The CF system uses an anti-crystallization vacuum-pipeline design to reduce deposit accumulation and maintain more stable vacuum transmission.

Corrosion-Resistant Sealing Structure

Corrosion-resistant seals and slurry-contact components are used to improve equipment reliability under chemically aggressive tailings conditions.

The final material configuration should be selected according to slurry pH, ion concentration, temperature and operating conditions.

Operating Benefits

The combined filtration and cleaning design is intended to provide:

• Reduced ceramic-pore blockage

• More stable vacuum performance

• Lower filtration-capacity decline

• More reliable filter cake discharge

• Reduced cleaning frequency

• Improved continuous-operation stability

• Better resistance to corrosive and crystallizing conditions