PGT (ZPG, GPT) Disc Vacuum Filter
The disk vacuum filter, as a new type of filtering equipment, breaks through the problems of high energy consumption, harsh working conditions, frequent failures, and high operating costs associated with the traditional intermittent operation process of pressure filters. It achieves low moisture content in the filter cake, clear filtrate, and continuous production without reducing output while cleaning the filter cloth under high vacuum conditions. With low investment cost and high production efficiency, it has been widely applied and推广 in the treatment of ore dressing tailings.
Tailings comprehensive treatment method
The tailings, which contain a large amount of water from the mine, are thickened in a thickener before being separated in a disk vacuum filter. The filter cake can be directly stacked and stored dry, while the supernatant from the thickener and the filtrate from the filter are filtered and reused. If the particles are extremely fine, they are thickened by adding an appropriate amount of flocculant through a dosing unit before being 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 polymer wear-resistant coating at the bottom of the tank, the issue of easy wear on the tank is fundamentally addressed.
2. Designed for tailings with high friction coefficients and large particle sizes, as well as rapid sedimentation, the filter fan enhances its strength through the use of high-strength wear-resistant materials and thicker wall thickness. This strengthens the surface's resistance to wear, thereby extending the lifespan 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 vacuum extraction rate and the efficiency of filtrate discharge.
4. The filter pipes are made of high-strength ceramic-lined 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 ensure easy disassembly.
6. The mixer utilizes Teflon seals, combining water-tight and imported packing material seals for a multi-level sealing system to ensure 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 disk and friction disk are made of wear-resistant boron-phosphorus cast iron. The control disk features a involute-shaped air passage. The disks are lubricated with yellow grease, offering a balance of flexibility and rigidity, excellent sealing, and a lifespan of over three years.
8. Multi-point automatic lubrication of the dry oil pump ensures the normal operation of the equipment.
9. As a filtering medium, filter cloths accumulate residues in their surface capillaries after use, which affects their filtering properties. Regular high-pressure cleaning is necessary to maintain optimal air permeability. Our company's filter machines are equipped with an automatic filter cloth cleaning system, ensuring continuous cleaning while in operation. Additionally, the filter cloths are regenerated and recycled using hot water and alkali solutions to preserve their excellent air permeability and product dehydration efficiency.
10. Utilizes variable-frequency speed control, adjusting according to material concentration and flow rate to achieve optimal working performance.

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