Industrial Vacuum Belt Filter Manufacturer
High-capacity horizontal vacuum belt filter systems engineered for continuous, automated solid-liquid separation, cake washing, and rapid mineral slurry dewatering. Achieve absolute process efficiency under heavy industrial workloads.
2 - 100 m²
Filter Area
Continuous Run
No Down-Time Discharge
Multi-Stage
Co-Current Cake Wash
Working Principle
What Is A Vacuum Belt Filter?
An industrial vacuum belt filter (also known as a horizontal belt vacuum filter) is a fully automated liquid-solid separation plant designed for highly efficient slurry dehydration. It features a horizontal, continuously moving rubber drainage belt that carries a filter cloth over a stationary vacuum box. As the slurry is fed onto the horizontal plane, gravity and intense vacuum pressure pull liquids downward, leaving a highly uniform solid cake layer on top.
Zhonghui Machinery belt filtration designs prioritize continuous multi-stage cake washing capabilities, automatic cloth tracking alignment, and heavy-duty structural frames optimized for high-throughput chemical and mining refineries.
Ideal Applications & Slurry Processing:
Mining Tailings & Mineral Processing: Dewatering gypsum from flue gas desulfurization (FGD), phosphoric acid production, iron ore tailings, and potash.
Chemical & Pharmaceutical Processing: Extraction washing for industrial chemical crystals, chemical salts, catalysts, and pigments.
Environmental & Waste Treatment: Large-scale municipal sludge drying, metallurgical wastewater sludge recovery, and industrial aggregate recycling.
Working Process
How Does a Vacuum Belt Filter Work?
Continuous horizontal vacuum sequence achieving complete solid-liquid extraction inside our vacuum belt filter.
Our Advantages
WHY CHOOSE OUR VACUUM BELT FILTER
Advanced horizontal vacuum engineering designed for maximum rinsing purity and smooth mechanical operation.
Fully Continuous Operation
Our horizontal belt system eliminates cycle stop intervals to maximize daily output.
Low Friction Belt Design
Advanced air or water cushion support structures minimize heavy drive motor friction.
Superior Cake Washing
Multi-stage forward spray bars deliver exceptional chemical rinsing results.
Automated Cloth Alignment
Pneumatic tracking sensors adjust the cloth position continuously to prevent belt edge wear.
Robust Corrosion Armor
Stainless steel and high-grade rubber options withstand highly acidic chemical slurries.
Flexible Speed Tuning
Integrated VFD control adjusts belt speed dynamically to handle changing slurry densities.
Technical Specifications
Vacuum Belt Filter Models & Specifications
Review our field-proven industrial vacuum belt filter model configurations for continuous process lines.
| Model Spec | Effective Area (m²) | Belt Width (mm) | Vacuum Box Width (mm) | Drive Motor Power (kW) | Length Over All (mm) |
|---|---|---|---|---|---|
| DU-5 | 5 | 1000 | 250 | 3.0 | ~ 7800 |
| DU-12 | 12 | 1600 | 400 | 5.5 | ~ 11200 |
| DU-30 | 30 | 2400 | 600 | 11.0 | ~ 16500 |
| DU-60 | 60 | 3000 | 800 | 22.0 | ~ 24800 |
FREQUENTLY ASKED QUESTIONS
EVERYTHING YOU NEED TO KNOW
Find expert answers to the most common questions about our vacuum belt filter configurations, including sliding belt sealing, cake washing cycles, and cloth selection parameters.
Q1: What are the main benefits of a vacuum belt filter compared to a rotary disc filter?
A: A horizontal vacuum belt filter excels at handling coarse, heavy materials that settle quickly and cannot be held by vertical vacuum filters. It offers superior cake washing capabilities, allowing multiple stages of fresh water rinsing on a flat horizontal surface to achieve maximum product purity.
Q2: How do you maintain a reliable vacuum seal on a fast-moving rubber belt?
A: Our plants feature a high-precision pneumatic vacuum box lowering mechanism paired with specialized low-friction wear belts. We inject high-pressure sealing water between the moving rubber belt and the stationary vacuum track, creating a perfect liquid seal that prevents vacuum loss while extending mechanical component life.
Q3: Can this filter run highly acidic or abrasive mineral slurries?
A: Yes, absolutely. For chemical extraction lines processing aggressive acids or corrosive minerals, we build the contact components out of high-grade 316L stainless steel, polypropylene, or specialized anti-wear rubber linings to protect the structural frame from premature corrosion.
Q4: How does the automatic cloth tracking and washing system operate?
A: As the belt travels continuously, integrated pneumatic tracking rollers monitor cloth edge positions, adjusting alignment automatically to prevent tracking errors. After discharging the cake, the cloth passes an enclosed high-pressure spray chamber to wash out trapped fines before a new feed cycle begins.
Q5: What determines the maximum output cake dryness on a belt filter?
A: Output dryness is determined by the belt speed, the length of the vacuum dewatering zone, and the vacuum level inside the box. Adjusting the variable frequency drive (VFD) controls retention time, allowing operators to optimize moisture levels for transport or downstream drying.
Q6: Do you supply the full vacuum engineering support package?
A: Yes, Zhonghui Machinery manufactures the complete process line layout. This includes the main filtration frame, heavy-duty liquid-ring vacuum pumps, co-current filtrate separators, automatic filtrate discharge pumps, and integrated electrical PLC control boxes.
Q7: What is the typical factory production schedule for a custom belt system?
A: Due to the large physical scale of horizontal rubber drainage belts and precision vacuum box machining, manufacturing takes 35 to 45 calendar days to complete full factory frame staging and tracking line balance testing.
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