Advanced Dual-Stage Separation Technology
The Screen Bowl Decanter Centrifuge represents an important advancement in solid-liquid separation technology. By combining the advantages of conventional decanter centrifuges with filtering centrifuges, it delivers excellent dewatering performance. The innovative design features a sedimentation section for primary dewatering followed by a screening section for final moisture removal, resulting in significantly drier solids and cleaner liquids.
Core Advantages
Dual separation technology — combines sedimentation and screening for superior solid-liquid separation efficiency.
Higher cake dryness — achieves significantly lower moisture content compared to conventional decanters, reducing downstream drying costs.
Wide adaptability — handles materials with varying solid concentrations from 2% to 50%, ideal for unstable feed conditions.
Energy efficient design — lightweight construction with optimized bowl and scroll geometry reduces power consumption by up to 10%.
Enhanced wear resistance — designed with wear-resistant materials and coatings for extended service life in demanding applications.
Continuous operation — fully automated system with dual-motor, dual-frequency control for 24/7 reliable performance.
How Screen Bowl Decanter Works
Feed Introduction & Primary Sedimentation
The slurry enters the conical sedimentation section where high-speed rotation creates powerful centrifugal forces. Heavier solids migrate to the bowl wall while clarified liquid moves toward the center for discharge via overflow weirs.
Scroll Transport & Pre-Dewatering
The differential-speed scroll conveyor transports separated solids from the sedimentation zone toward the screening section. Initial dewatering occurs as solids travel along the conical beach, expelling most free water.
Advanced Screening & Final Dewatering
Pre-dewatered solids enter the cylindrical screening section where higher centrifugal forces combined with screen perforations achieve final moisture removal. The innovative design ensures high cake dryness while maintaining high solids recovery.
Integrated Washing & Screen Regeneration
Optional spray systems in both scroll core and housing enable solids washing and automatic screen cleaning during operation, maintaining good separation performance without shutdown.
Screen Bowl Decanter Technical Parameters
Our comprehensive range of Screen Bowl Decanters offers excellent performance for challenging separation applications. Each model features optimized sedimentation and screening sections designed for high efficiency and reliability.
| Model | Bowl Diameter (mm) | Bowl Length (mm) | Screen Section (mm) | Max Speed (rpm) | Main Motor (kW) | Back Motor (kW) | Weight (kg) | Dimensions (L×W×H mm) |
|---|---|---|---|---|---|---|---|---|
| LWZ350×1435 | 350 | 1000 | 435 | 4000 | 22 | 5.5 | 3200 | 3800×1050×1200 |
| LWZ450×1845 | 450 | 1400 | 450 | 3400 | 37 | 11 | 3900 | 4800×1150×1450 |
| LWZ520×2150 | 520 | 1700 | 450 | 3200 | 55 | 15 | 6000 | 5400×1250×1600 |
| LWZ580×2400 | 580 | 1900 | 500 | 3000 | 75 | 22 | 7800 | 5900×1400×1700 |
| LWZ650×2650 | 650 | 2150 | 500 | 2800 | 110 | 30 | 11500 | 6500×1650×1800 |
| LWZ750×3200 | 750 | 2600 | 600 | 2200 | 132 | 45 | 15200 | 7500×1600×1800 |
| LWZ800×3200 | 800 | 2600 | 600 | 2000 | 132 | 55 | 14500 | 4900×3000×1600 |
| LWZ920×3200 | 920 | 2400 | 800 | 1600 | 200 | 75 | 18500 | 5400×3200×1600 |
| LWZ1100×3800 | 1100 | 2700 | 1100 | 1300 | 315 | 90 | 25500 | 7800×4000×1900 |
Performance Benchmarks
Salt Crystallization Dewatering
- Solid moisture content: 2-3% (vs. 5-8% conventional decanters)
- Liquid solid content: <0.1% (vs. >1% filtering centrifuges)
Chemical Crystalline & Resin Processing
- Solid moisture content: 15-20% (vs. 20-25% conventional decanters)
- Enhanced product purity and reduced drying energy
Livestock Manure Treatment
- Solid moisture content: 50-60% (vs. 70-75% conventional decanters)
- Liquid solid content (SS): <1-1.5%
Industrial Applications
Screen Bowl Decanters excel in applications requiring high cake dryness and superior liquid clarity. The dual-stage design makes them ideal for challenging separations across various industries.
Chemical Crystallization
- Salt (NaCl, KCl) crystal separation
- Sodium and potassium salt processing
- Chemical synthesis product isolation
- Pharmaceutical intermediate recovery
Polymer & Resin Processing
- Polymerization product separation
- Resin dewatering and washing
- Catalyst recovery operations
- Chemical intermediate processing
Mining & Minerals
- Coal slurry dewatering
- Mineral tailings treatment
- Fine particle recovery
- Flotation concentrate processing
Agricultural Waste
- Livestock manure dewatering
- Dairy farm waste treatment
- Poultry waste processing
- Biogas slurry separation
Customer Success Stories
ZK Screen Bowl Decanters have proven their excellent performance in real-world applications across various industries. Our customers report significant improvements in dewatering efficiency, reduced operational costs, and enhanced product quality.
Chemical Plant Salt Crystallization Project
A major chemical manufacturer implemented our LWZ580 Screen Bowl Decanter for sodium chloride crystallization. The dual-stage separation achieved 2.5% moisture content in the salt crystals, representing a 60% improvement over their previous equipment. The enhanced dewatering performance reduced their drying energy consumption by 35% while improving product quality and throughput.
Project Results:
- Moisture content reduced from 6% to 2.5%
- Drying energy savings of 35%
- Increased production capacity by 25%
- Improved crystal purity and quality
"The Screen Bowl Decanter has transformed our salt production process. The superior dewatering performance has significantly reduced our operational costs while improving product quality." — Production Manager, Leading Chemical Manufacturer
Chemical Plant Installation
Large-Scale Dairy Farm Manure Treatment Project
A leading dairy operation with 5,000 cattle installed our LWZ650 Screen Bowl Decanter to address environmental compliance and waste management challenges. The advanced dual-stage separation technology reduced manure moisture content to 55%, enabling efficient composting and transportation while achieving liquid discharge standards for agricultural irrigation.
Project Results:
- Solid moisture content reduced from 74% to 55%
- Liquid suspended solids decreased to under 1.2%
"The dual-stage separation technology of this Screen Bowl Decanter is impressive. The equipment operates stably and reliably, greatly improving our farm's environmental compliance while creating additional economic value for the farm." — Operations Director, Midwest Dairy Farm
Low-Moisture Processed Manure
Why Choose ZK Screen Bowl Decanter?
ZK SEPARATION's Screen Bowl Decanter represents advanced solid-liquid separation technology. Our innovative dual-stage design delivers excellent performance while ensuring reliable operation and cost-effective maintenance.
Superior Separation Performance
The combination of sedimentation and screening technologies delivers excellent dewatering efficiency, achieving moisture contents difficult to achieve with conventional decanters alone.
Versatile Application Range
Handles a wide variety of materials from fine crystalline particles to coarse organic matter, with solid concentrations ranging from 2% to 50%.
Energy Efficient Operation
Advanced engineering and lightweight construction reduce power consumption while dual-motor control optimizes energy recovery and overall efficiency.
Minimal Maintenance Requirements
Robust design with wear-resistant materials and integrated cleaning systems ensures long service life with minimal downtime.
Complete Automation
Fully automated operation with PLC control, HMI interface, and remote monitoring capabilities for effective process control and diagnostics.
Proven Reliability
Backed by ZK SEPARATION's 20+ years of centrifuge expertise and comprehensive technical support for guaranteed performance.
