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Finest coal washing and tailings treatment

Need to increase washing efficiency? Enhance throughput? Reduce water consumption while meeting standards for environmental impact and safety?

Our separation specialists tackle these challenges based on decades of experience recommending, configuring, and commissioning a wide range of solutions for all types of coal applications. Whatever your specific need in coarse dewatering, fine dewatering or coal tailings treatment process, we have the right solution ready for you.

ANDRITZ technologies are focused on handling finer particle sizes, meet high product dryness requirements, achieve high recycling rates for process water, and maximize efficiency in the dewatering of coal tailings. We offer a wide selection of flocculation, thickening and mechanical dewatering solutions for coal producing companies of all sizes. Combined with process simulation technology, machine and process control and proven local service, we are proud to be able to offer the full package from from simulation to installation and process optimization.

Well-proven

Over 60 years of experience with developing equipment for the coal industry, 300 centrifuges, 100 belt presses, and numerous thickeners sold

Broad portfolio

Wide range of technologies to ensure that there is a best solution available to achieve the targets for any coal application

In-depth understanding of process requirements

Technologies focused on handling finer particle sizes, higher product dryness requirements, higher recycling rates for process water, and efficient dewatering of tailings

Do you have questions?  Get in contact with us!  

 

Where we fit into your process

One main advantage of working with ANDRITZ is that it offers a range of technologies to ensure that there is a best solution available to achieve the targets for any coal application. Filter presses, various types of pressure and vacuum filters, and different types of centrifuges – each is configurable to meet specific requirements. ANDRITZ specialists have the experience and skill to recommend the right solution and configure it to achieve precise performance.

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ANDRITZ has invested considerably in expanding its competence in solid/ liquid separation with the acquisition and integration of such well-known names as Bird, KHD Humboldt Wedag, Rittershaus & Blecher, Netzsch Filtration, Escher Wyss dryers, Krauss-Maffei centrifuges, dryers, and filters, and Delkor Capital Equipment (Pty) Ltd.. The result is a comprehensive product offering for each dewatering step in the coal preparation process.

Browse solutions for:

Coarse dewatering

For the processing of coarse coal particles, ANDRITZ supplies rugged and reliable centrifuge systems that achieve high throughput with low residual moisture

ANDRITZ horizontal vacuum belt filter (HVBF)

Vacuum belt filter

- Wear strips of low-friction, wear-resistant material

- Pneumatic system for raising and lowering vacuum box (ease of maintenance)

- Over 700 machines supplied worldwide with a total area excessing 26,100 m²

Screen scroll centrifuge

- Powerful planetary or cyclical gearbox maintains the differential speed of basket and scroll

- Highest capacity centrifuge (per area of screen)

- Lowest moisture content down to 5%

Fine dewatering

The smaller the coal particle, the larger the surface area – increasing the volume of surface moisture that must be removed. ANDRITZ offers both conventional and innovative systems to achieve throughput and moisture targets for any coal preparation operation.

ANDRITZ hyperbaric disc filter HBF

Hyperbaric disc filter

- Proven double-gate valve for filter cake discharge

- Outstanding capacities of more than 1,000 kg/m²/h

- Low investment for peripheral equipment due to continuous operation

ANDRITZ screen bowl decanter centrifuges AS have an additional final dewatering screen for maximum dryness

Screen bowl decanter centrifuge

- Optimized wear protection with ceramic or tungsten tiles

- Low operating costs due to advanced wear protection

- Conical screen design provides highest capacity with lowest energy consumption

ANDRITZ Filter press

Filter presses

- Fast opening mechanism leads to reduced cycle times

- Automated operation, even with sticky filter cakes

- Low residual moistures due to flexible operation

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Vacuum disc filter

- Filtrate collection pipes located externally to the shaft for easy replacement

- High throughput at low residual moisture due to modern design

- Easy to maintain – easily accessible

ANDRITZ Decanter Centrifuge

Solid bowl decanter centrifuge

- High rotational speed and long service life due to ceramic and tungsten carbide wear protection

- Variable speed adjustment for drum and scroll possible

- Produces effluent with less than 1% solids

- Optimized centrifugation for all process requirements

Tailings treatment

With the goal of reducing handling and disposal costs while recovering the maximum volume of water for reuse, ANDRITZ has the best solutions for solid/liquid separation of coal tailings.

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Thickening

- Most efficient integrated feed system and feed well

- Reduced flocculant consumption due to enhanced feed design

- Very low maintenance requirements due to robust construction

ANDRITZ belt press CPF-Q

Heavy-duty belt press

- Robust design to accommodate high dewatering pressures

- High throughput of up to 15 t/h per meter working width

- Maximum water recovery in combination with thickeners

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Metris addIQ RheoSCAN

- First optical measurement system

- Detects the actual sludge viscosity and adjusts the needed polymer dose

- Helps you to control your adjustment of polymer in a real 24/7

- Optimized for belt presses

ANDRITZ Decanter Centrifuge

Solid bowl decanter centrifuge

- High rotational speed and long service life due to ceramic and tungsten carbide wear protection

- Variable speed adjustment for drum and scroll possible

- Produces effluent with less than 1% solids

- Optimized centrifugation for all process requirements

ANDRITZ Filter press

Filter presses

- Fast opening mechanism leads to reduced cycle times

- Automated operation, even with sticky filter cakes

- Low residual moistures due to flexible operation

Automation and Digitalization

Metris addIQ control systems with touch screen panel

Metris addIQ control system upgrade

Metris addIQ control systems deliver

everything from basic automated

movement, up to a point where the machine can recognize changes and imbalances within the process and help you to optimize accordingly.

IDEAS simulation solutions

An industry-leading process simulator that offers powerful steady-state and dynamic modeling capabilities as a complete package for all your simulation needs.

Operator OTS - header

Metris Operator Training Simulator (OTS)

Working in the same way as a flight

simulator, Metris OTS providing operators with realistic, hands-on training modules — reducing the risk to both themselves and customer equipment.

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Metris Advanced Control Experts (ACE™)

Advanced Control Expert (ACE), an

advanced process control (APC) system is designed to improve the performance, efficiency, and stability of key equipment and process areas

Download area
Separation expertise for your success in coal
Separation expertise for your success in coal


PDF: 1.5 MB
Advanced Control Expert (ACE) for Mining

ACE increases mineral recovery and production, minimizes energy usage, and improves classification.

Advanced Control Expert (ACE) for Mining

ACE increases mineral recovery and production, minimizes energy usage, and improves classification.

PDF: 1.1 MB

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