Horizontal vacuum belt filter
Continuous filtration for optimum cake moistures
The horizontal vacuum belt filters by ANDRITZ Delkor (Pty) Ltd. offer numerous advantages for process plants:
- High filtration rates and large tonnage capabilities
- Excellent washing efficiencies and lower cake moisture
- Long service intervals and low maintenance costs
Applications of the horizontal vacuum belt filter
Typical applications for the horizontal vacuum belt filter include:
|Coal fines||Gold/silver recovery in cyanide process|
|Rutile/zircon and titanium sands||Washing of phosphate rock|
|Iron ore fines (both hematite and magnetite)||Nickel/cobalt and manganese salts|
|Pyrites||Uranium for SX recovery|
|Nickel||Potash/soda ash and lithium salts|
|Zinc||Acid-leached copper and cobalt|
|Lead||Recovery of alumina from sintered mud|
|Copper||Vanadium leached from magnetite|
|Phosphate rock||Hemihydrate and dihydrate calcium sulfate from phosphoric acids|
High extraction efficiencies are the key to profitability in most washing applications, whether it is for gold, uranium, phosphoric acid, copper, or alumina. The horizontal vacuum belt filter can attain wash efficiencies of more than 99.8% as plug flow displacement and multi-stage counter-current washing is utilized over the filtration area.
Materials of construction
We offer a complete range of solutions for corrosive, abrasive and hot filtering applications; from the highest quality stainless steels to FRPs and plastics. The filter frames are manufactured from open channel and angle sections to prevent problems associated with corrosion when using box sections.
Cake discharge on most applications is spontaneous, but ANDRITZ makes use of cake scrapers or water slides to ensure complete cake removal in the event of wet, sticky products.
We have constructed the widest filters using 4.8 m rubber belts. These are available in natural rubber, SBR, neoprene, and EPDM, depending on the process requirements. All our transporter belts have a carcass-free center zone to ensure long life by preventing contact between the carcass and corrosive filtrates.