ANDRITZ hyperbaric disc filter HBF

Drum and Disc Filter

  • Hyperbaric Disc Filter (HBF)
  • The Krauss-Maffei Pressure Drum Filter TDF
  • Vacuum Drum Filter YU
  • Horizontal Vacuum Belt filter (HVBF)

Hyperbaric Disc Filter (HBF)

The ANDRITZ hyperbaric disc filter is the right choice whenever continuous filtration with highest solids throughput, lowest residual moisture, and clear filtrate are required in one unit. More than 150 customers all around the globe are already profiting from this technology.

ANDRITZ hyperbaric disc filter HBF

The ANDRITZ hyperbaric disc filter HBF


Reduction of total cost of ownership

The ANDRITZ hyperbaric disc filter is a very competitive technology for filtration requiring high throughputs as the cost per ton will be less compared to other equipment for high tonnages. Customers can save up to 50% of the total cost of ownership thanks to:

  • Lower filter cloth consumption
  • Fully automated and continuous operation
  • Highest specific throughput generated thanks to the high-pressure system
  • Small footprint as less space is required for a large filter area

Lowest residual mosture

Moisture content is an important key parameter in many processes. Thanks to the high pressure differential of up to 5.8 bar, the ANDRITZ hyperbaric disc filter can obtain a low residual moisture and thus meets process requirements and saves transportation costs because of the reduced weight.

Clear filtrate

The ANDRITZ hyperbaric disc filter generates a clear filtrate, thus avoiding accumulation of fine particles in the process water circuit and optimizing water recirculation in the system.

Your benefits

  • Up to 50% better in total cost of ownership thanks to lower filter cloth consumption, fully automated and continuous operation, highest specific throughput, and small footprint
  • Highest throughput and lowest residual moisture due to high pressure differential of 2 up to 5.8 bar and continuous operation
  • Increased heating value of fine coal and cost savings in thermal drying (or possibly operations without drying) thanks to lower moisture content
  • Lower cost for conveyors and other peripherals due to continuous operation
  • Clear filtrate for optimized water recirculation to avoid accumulation of fine particles in the process water circuit
  • Processing of fine ore
  • Less emissions to the environment thanks to closed system design

The Krauss-Maffei Pressure Drum filter TDF

When it comes to pressurized drum filtration, there is always a basic challenge to overcome – achieving low residual moisture at high capacities. With its fully automated operation, ease of maintenance, and flexibility in use, the Krauss- Maffei pressure drum filter TDF stands for reliability in quality, at low production costs and high efficiency.

Especially for fine and, in particular, ultra fine-grained products, pressurized filtration is the technology of choice to achieve an increased specific filtration rate and higher product quality. The Krauss-Maffei pressure drum filter TDF comes in a closed design, which allows processing of toxic products under inert gas. When conventional methods have to pass or are becoming insufficient, our pressure drum filters are the right choice to meet your separation requirements efficiently and reliably. Operation at pressures of up to 10 bar and temperatures of up to 200 °C are thus no obstacle anymore.


Krauss-Maffei pressure drum filter TDF  open


Main Applications

  • Plastic intermediates (e.g. BPA, PTA, PET, melamine, etc.)
  • Iron ore beneficiation pigments (e.g. iron oxides)
  • Titanium dioxide
  • Coal preparation
  • Dyestuff
  • Soda
  • Food
  • Pharmaceuticals

Materials of Construction

  • Carbon steel
  • Stainless steel

Your benefits

  • High flow rates at low residual moisture and high washing efficiency
  • Optimized hydraulic efficiency
  • Easily accessible process area, locking of pressure vessel with fast clamp ring
  • Maintenance-friendly, wear-resistant discharge system
  • Suitable for effective steam pressurization
  • Processing of suspensions at high pressures and temperatures
  • Handling of toxic products
  • Adaptable differential pressures for each filtration zone

Vacuum Drum Filter YU

The high-capacity YU rotary filter, formerly the Bird Young rotary filter, is the high-end solution for rotary vacuum drum filters. The YU filter is best suited for free-filtering materials, where it can benefit from the much higher filtration rates. Its unique, single-cell design provides for very high filtration capacity (5-10 times higher than conventional drum filters), excellent cake washing due to thinner cakes, and smaller space requirements.

The advantages of the ANDRITZ vacuum drum filter YU lie in thin cake applications, where highest filtration rates are combined with high washing rates, highest solids throughput rates, and all this also under gas-tight conditions. The ANDRITZ vacuum drum filter YU is available in various stainless steel materials and a wide range of sizes. Due to the long history of the single-cell design, the ANDRITZ vacuum drum filter YU design has been proven in many applications.


Vacuum drum filter YU


Main Applications

Terephtalic acid, bisphenol A, polymers, sodium sulfate, boric acid, explosives, aspirin, antibiotics, time-release medicine, winterized salad oils, sterates, sodium bicarbonate, starches

Consturction Materials

  • Stainless steel
  • Special materials

Horizontal Vacuum Belt Filter (HVBF)

In the most challenging applications, for example chemicals or mining and minerals, reliable dewatering and product recovery is critical to maintaining continuous production. This is why ANDRITZ has put decades of expertise into the Horizontal Vacuum Belt Filter (HVBF) technology, to provide a solution with the highest throughput and low residual cake moisture content, while keeping operating costs low.


Largest belt filter plant in the world consisting of 26 HVBF units each with 80 m² filter area


Dewatering Applications

  • General tailings
  • Gypsum
  • Phosphate rock
  • Coal fines
  • Magnetite
  • Iron ore
  • Lithium

Washing Applications

  • Leached materials
  • Zinc
  • Copper/cobalt
  • Nickel
  • Gypsum
  • Flue gas desulfurization (FGD)
  • Pulp washers

Added Value When Working With ANDRITZ

  • High-throughput dewatering and cake washing
  • Reduced downtime due to innovative design
  • Global testing facilities
  • Increased flexibility due to modular design