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ZDY1.5
BOEEP
ZDY
BOEEP designs and manufactures industrial-grade integrated belt press dewatering machines for municipal and industrial wastewater treatment facilities. As a professional sludge treatment equipment manufacturer with over a decade of industry experience, our ZDY series solves a critical pain point for operators: the inability to process unthickened sludges directly without dedicated thickening tanks.
Most conventional dewatering systems require separate pre-thickening infrastructure, which increases capital expenditure, occupies valuable plant space, and adds operational complexity. This is particularly problematic for facilities handling A/O residual sludge and other low-concentration sludges that struggle to settle effectively in traditional thickening pools. Our all-in-one design eliminates this bottleneck by combining a high-efficiency rotary drum thickener and a multi-stage belt press into a single compact unit, delivering reliable performance with lower total cost of ownership.
The BOEEP belt press dewatering machine consists of three core subsystems: a sludge conditioning system, a rotary drum thickening system, and a multi-stage belt press system. Key components include a conditioning tank with polymer agitator, metering pump, concentrating rotary drum with integrated washing device, gravity dewatering zone, wedge compression zone, pre-pressing zone, low/medium/high pressure shear dewatering zones, automatic filter belt deviation correction system, electric control panel, and filtrate collection system.
Sludge Conditioning: Raw sludge is pumped into the conditioning tank, where it is thoroughly mixed with precisely dosed polymer flocculant. This process forms large, dense flocs that separate easily from water, optimizing subsequent dewatering efficiency.
Rotary Drum Thickening: Flocculated sludge enters the rotating thickening drum, where free water drains through precision-engineered gaps. A high-pressure washing system mounted on top of the drum continuously cleans the screen surface, preventing clogging and maintaining consistent thickening performance.
Multi-Stage Pressing: Thickened sludge is evenly distributed onto the moving filter belt. It then passes through six sequential dewatering zones with progressively increasing pressure applied along the belt direction. This gradual compression ensures maximum water removal without damaging the filter cloth or causing sludge overflow.
Discharge & Recycling: Dewatered sludge cakes with 75-85% moisture content are discharged at the end of the machine. All collected filtrate is recycled back to the raw wastewater pool for reprocessing, eliminating secondary pollution.
Stainless Steel Main Construction: The entire principal structure is fabricated from high-grade stainless steel, providing exceptional rust and corrosion resistance. This ensures a minimum 10-year service life even in harsh wastewater environments, reducing long-term replacement costs.
German Imported Filter Cloth: We use premium filter media imported from Germany, which offers superior filtration efficiency, tensile strength, and abrasion resistance. It lasts 2-3 times longer than standard domestic alternatives, minimizing downtime for cloth changes and reducing maintenance expenses.
Automatic Cylinder Deviation Correction System: Our advanced pneumatic correction system with safety alarms and limit controls continuously monitors filter belt alignment. It automatically corrects minor deviations and shuts down the machine if limits are exceeded, extending filter cloth life by 40% and preventing costly equipment damage.
Low Moisture Sludge Cakes: The six-stage pressing design delivers consistent 75-85% moisture content in sludge cakes. This significantly reduces sludge volume, cutting transportation and landfill disposal costs by up to 30% compared to single-stage dewatering equipment.
Energy-Efficient Operation: The frequency-controlled drive system operates at low rotation speeds, reducing energy consumption by 20% compared to similar machines. Noise levels are kept below 75dB, creating a safer and more comfortable working environment.
Comprehensive Safety Protection: A fully integrated safety system monitors all operating parameters in real time. Automatic shutdown devices activate in case of abnormalities, ensuring operator safety and preventing equipment failure.
Model | Filter Belt Width (mm) | Capacity (m³/hr) | Dried Sludge Output (kgds/hr) | Sludge Cake Moisture (%) | Motor Power (kw) |
|---|---|---|---|---|---|
ZDY1.0 | 1000 | 5-10 | 41-100 | 75-85 | 1.5 |
ZDY1.5 | 1500 | 8-15 | 110-200 | 75-85 | 1.85 |
ZDY1.6 | 1600 | 8-21 | 180-260 | 75-85 | 2.2 |
ZDY2.0 | 2000 | 12-22 | 200-350 | 75-85 | 3.0 |
Standard configurations: IP55 motor protection, F-class insulation, 380V 50HZ 3-phase power, 0.6Mpa flushing pressure, 0.45Mpa cylinder pressure, frequency speed control.
Our ZDY series belt press dewatering machines are suitable for a wide range of sludge treatment applications:
Municipal wastewater treatment plants (A/O residual sludge, activated sludge)
Food and beverage processing facilities
Pharmaceutical and chemical manufacturing
Textile and paper mills
Mining and metallurgy operations
Petrochemical refineries
A 50,000 m³/day municipal wastewater treatment plant in Eastern China installed two BOEEP ZDY1.5 belt press dewatering machines in 2024 to replace their outdated separate thickening and pressing system. The new units process 12 m³/h of A/O residual sludge continuously, producing sludge cakes with consistent 80% moisture content. The plant has reduced its annual sludge disposal costs by over $22,000 and cut maintenance labor by 35% since installation.
Yes, the integrated rotary drum thickener allows direct processing of unthickened sludges with solid content as low as 0.3-1.5%, eliminating the need for separate thickening tanks.
Yes, our experienced engineering team can customize the polymer dosing system, belt speed range, and pressing parameters to match your specific sludge characteristics and treatment requirements.
We provide a 12-month comprehensive warranty, on-site installation guidance, operator training, and lifetime technical support for all our machines. Spare parts are available for fast delivery worldwide.
