Continuous Spiral Discharging Decanter Centrifuge for Automatic Sludge Dewatering

The LW series 2-phase sedimentation decanter centrifuge is a horizontal, continuously working and continuously spiral discharging sedimentation centrifuge designed for sewage sludge dewatering and thickening.

• All parts directly contacting material are made of stainless steel
• Continuous and automatic operation minimizes labor costs
• Dual motor drive with adjustable bowl and screw speed via VFD
• Continuous spiral discharging with PLC control and touch screen operation
• Scroll conveyor coated with wearable alloy or welded with alloy plate (customizable based on material characteristics)
• Comprehensive safety protections including rotation rate detection, vibration protection, motor overload/overheat protection, and scroll protection

The bowl and screw rotate at high speeds with a controlled differential speed. Materials enter through the feed tube, where centrifugal force separates components by specific weight. Heavy liquids accumulate on the bowl walls and discharge through the centripetal pump, while lighter liquids form an inner ring and exit through overflow channels. Solids are continuously pushed by the spiral conveyor to the tapered end and discharged as dewatered cake.

• All material contact surfaces use high-quality stainless steel or duplex stainless steel
• Specially designed bowl and spirals apply high-pressure to minimize cake moisture content
• Dual motor with dual frequency conversion and multi-stage planetary gear drive for precise speed control
• Unique DC bus-powered design ensures strong spiral torque while reducing power consumption
• Comprehensive wear protection options including welded hard facing, spray coating, ceramic ports, and carbide tiles

Established in 1954, Huading Separator has been at the forefront of centrifugal separation technology for over 60 years. As China's leader in mechanical separation technology, our machines serve diverse industries including food & beverage, dairy, oil & fat processing, chemicals, pharmaceuticals, biotechnology, starch technology, marine engineering, energy, oil fields, and water treatment.