LW630 2-Phase Kaolin Clay Classification Dewatering Decanter Centrifuge

Product Specification

LW630 2-Phase Kaolin Clay Classification and Dewatering Decanter Centrifuge Separator

The LW630 large-capacity decanter centrifuge is purpose-designed for the kaolin clay and mineral processing industry, providing precise particle classification and efficient dewatering. With advanced ceramic wear protection and duplex stainless steel construction, this machine delivers reliable performance even with highly abrasive mineral slurries.

Application in Kaolin Processing

The LW630 decanter centrifuge is employed in multiple stages of kaolin processing:

• Particle Classification: Separating fine kaolin particles (< 2 micron cut point) from coarser impurities
• Dewatering: Reducing moisture content of classified kaolin slurry before spray drying or filter pressing
• Brightness Enhancement: Removing iron-bearing and colored impurities through density separation
• Tailings Dewatering: Dewatering coarse tailings for dry stacking and disposal

Working Principle

Kaolin slurry enters the horizontal bowl through the stationary feed tube and is accelerated to bowl speed by the inlet distributor. Under high centrifugal force (up to 2,800 G), particles separate by size and density. Coarse particles sediment rapidly on the bowl wall and are conveyed by the screw to the solids discharge. Fine kaolin particles remain suspended in the liquid phase and overflow through adjustable weir plates for collection. The differential speed between bowl and screw is precisely controlled to optimize classification sharpness.

Key Features

• Large 630mm bowl diameter provides high processing capacity up to 40,000 L/H
• Advanced ceramic tile wear protection on screw conveyor flights and solids discharge ports
• Duplex stainless steel bowl construction with welded hard facing for added durability
• 55KW main motor with ABB variable frequency drive for powerful operation
• PLC automatic control with touch screen HMI and recipe management
• Field-replaceable wear protection elements minimize maintenance downtime
• Adjustable pond depth via interchangeable weir plates for flexible classification control
• Multi-stage planetary gearbox provides reliable high-torque differential speed

Technical Specifications

Benefits for Kaolin Producers

• Achieves sharp particle size classification with d50 cut point as low as 1-2 microns
• Ceramic wear protection extends maintenance intervals to 12,000+ operating hours
• Higher throughput per unit compared to traditional hydrocyclone classification circuits
• Reduced flocculant consumption compared to sedimentation-based processes
• Consistent product quality through automated parameter control and recipe management

Company Introduction

Huading Separator, established in 1954, brings over 60 years of centrifugal separation expertise to the mining and mineral processing industry. As China's premier separation equipment manufacturer, we deliver robust, reliable solutions for kaolin, calcium carbonate, bentonite, barite, and other industrial mineral applications worldwide.

FAQ

Q: How does ceramic protection compare to hard facing for kaolin?
A: Ceramic tiles offer 5-10 times longer wear life than welded hard facing when processing abrasive kaolin slurries, particularly at the solids discharge ports where wear is most severe.

Q: What is the typical product moisture after dewatering?
A: Depending on feed characteristics, the LW630 can achieve cake moisture of 28-35%, significantly reducing drying energy costs.

Q: Can this machine process other mineral slurries?
A: Yes, it is suitable for calcium carbonate, bentonite, barite, talc, and other industrial mineral processing applications.

Q: What is the delivery time for a LW630?
A: Standard delivery time is 60-90 working days. Express delivery options are available for urgent requirements.