In the coal tar separation industry, advanced international three-phase separation equipment achieves excellent separation efficiency with compact and eco-friendly designs. However, these imported systems suffer from high capital costs, lengthy maintenance cycles, expensive spare parts, and prolonged delivery times, significantly impacting production efficiency and operational expenses.

Jiangsu Shengli Centrifuge Manufacturing Co., Ltd. addresses these challenges by leveraging decades of expertise in separation equipment manufacturing to develop this cost-effective three-phase centrifuge. As a leading domestic decanter centrifuge manufacturer with nearly 30 years of R&D experience, our ISO 9001:2000-certified products integrate global technologies and serve clients across China, South Korea, Russia, Malaysia, and India.

Combining the strengths of domestic and international designs, this mature technology has been successfully deployed in:

· Chlor-alkali chemical plants

· Petrochemical facilities

· Wheat starch processing

· Coal tar separation (with performance matching imported systems at 1/3 the cost)

Key Advantages:
✓ Rapid spare parts supply | ✓ Competitive pricing
✓ Superior separation efficiency | ✓ Responsive technical support

I. LWS430 Centrifuge Specifications

1.1 Three-Phase Centrifuge Overview

This solid-liquid-liquid tri-phase decanter centrifuge features:

· Drum assembly: Cylindrical-conical design with helical conveyor

· Drive system: Dual motors + planetary gear differential

· Operation: 24/7 continuous processing at ≤90dB(A) noise

Separation Principle:

1. Primary motor drives the drum via V-belts (0-3,600 rpm adjustable)

2. Secondary motor controls differential speed (2-35 rpm stepless adjustment)

3. Triple output:

o Solids: Pushed to conical discharge

o Heavy liquid phase: Outer overflow weir

o Light liquid phase: Inner overflow weir

Certifications: Exceeds JB/T 502-2004 standards with:

· ISO 9001:2000 certification

· Actual noise ≤85dB(A) | Vibration ≤7.1mm/s

1.2 Technical Parameters

Coal Tar Feed Characteristics:

Separation Performance:

Mechanical Specifications:

· Drum: Ø430mm | L/D=4.1 | AISI 316L

· Drive: 30kW (main) + 11kW (aux) explosion-proof motors (ExdⅡBT4)

· Wear protection: Tungsten carbide-coated screw flights

· Lubrication: SKF/NSK bearings with Shell 150# oil (differential)

II. Electrical System

2.1 Dual-Frequency Drive

Core Features:

· Energy recovery: Shared DC bus reduces power consumption by 15-20%

· Precision control: Vector-controlled VFD maintains constant torque (5-50Hz)

· User interface:

o Digital display: Drum speed/differential RPM

o Analog gauges: Torque & motor current

Protection Systems:

· Phase loss | Overload | Synchronization alarms (audio/visual)

· DCS integration via dry contacts

2.2 Control Cabinet Standards

· Construction: RAL-1013 powder-coated steel (IP54)

· Compliance: IEC 439/GB standards for:

o Circuit breakers (IEC 974-2)

o Contactors (IEC 847-4)

o Relays (IEC 65)

III. Quality Assurance

Factory acceptance testing includes:

· 8-hour no-load run (vibration/noise measurement)

· Material certification (EN 10204 3.1)

· Performance guarantee:

· Bearing life: 80,000 hours

· Tungsten components: 40,000 hours