PGT (ZPG, GPT) Disc Vacuum Filter
The Disc Vacuum Filter, as a new type of filtration equipment, has overcome the issues of high energy consumption, harsh working conditions, frequent malfunctions, and high operation costs associated with the traditional intermittent pressure filter process. It achieves low moisture content in the filter cake, clear filtrate, and continuous production with filter cloth cleaning without reducing output. With low investment costs and high production efficiency, it has been widely applied and推广 in the treatment of ore dressing tailings.
Tailings comprehensive treatment methods
Tailings from mining operations, containing a high water content, are thickened in a thickener and then fed into a disk vacuum filter for separation. The filtered cake can be directly dried and stored, while the supernatant from the thickener and the filtrate from the filter are filtered and reused. For very fine particles, a flocculant is added via a dosing device before thickening and then filtered in the disk vacuum filter.

Technical Features
The tank, serving as a container for material slurry and a load-bearing support for equipment, plays a crucial role in product stability due to its sturdy and durable structure. By adding an alumina high molecular wear-resistant coating at the bottom of the tank, the issue of easy wear on the tank is fundamentally resolved.
2. Designed for tailings with high friction coefficient, large particle size, and fast settling speed, the filter fan enhances its strength through the use of high-strength wear-resistant materials and thicker wall thickness. This strengthens the surface wear resistance, thereby extending the service life of the filter fan.
3. The cross-section of the filtrate tube is large, and the cavity volume of the distribution head is substantial, enhancing the suction rate and the filtrate discharge efficiency.
4. Filtration pipes are made of high-strength, wear-resistant ceramic composite steel pipes or stainless steel pipes, which are resistant to corrosion.
Each filter blade is secured with a pressure plate, featuring bolts made of stainless steel to prevent rust and facilitate easy removal.
6. The mixer utilizes a PTFE seal ring, featuring a multi-combination seal with water-tight and imported rope packing, achieving the goal of no leakage of minerals. It also adopts a dual-composite form of mechanical and air mixing, or an optional single method, based on the particle size of the material, overcoming the phenomenon of material sedimentation.
7. The control disc and friction disc are made of wear-resistant boron-phosphorus cast iron. The control disc features a involute-shaped air passage. The discs are lubricated with yellow grease, providing a balance of rigidity and flexibility, excellent sealing, and a lifespan of over three years.
8. The dry oil pump provides centralized multi-point automatic lubrication to ensure the normal operation of the equipment.
9. As a filtration medium, the filter cloth accumulates residue in its surface capillaries after use, which affects its filtration characteristics. Regular high-pressure cleaning is required to maintain optimal breathability. Our company's filter machines are equipped with an automatic filter cloth cleaning system. The filter cloth is cleaned on demand, allowing for continuous operation and cleaning. Additionally, the filter cloth is regenerated and recycled using hot water and alkali solution to ensure excellent breathability and product dehydration efficiency.
10. Utilizes variable frequency speed control, adjusting according to material concentration and flow rate to achieve optimal working performance.

Application Range
This series of disk vacuum filter is mainly used for dewatering of tailings from various mineral processing, also suitable for river sediment, hydropower station silt, construction materials, chemical industry, and other fine-grained materials.