Slurry pumps from Multotec Canada
Slurry pumps are used in the mining and mineral processing sectors to move corrosive and/or abrasive materials such as tailings, minerals, ore and other slurries. Slurry pumps can efficiently transport these materials from one location to another. They are often manufactured using robust materials to ensure a long lifespan and are a crucial part of transporting fluids that contain mineral particles or suspended mineral solids.
They work by creating a liquid flow through the centrifugal force created by the rotation of an impeller. As the impeller rotates, the slurry is sucked in and pushed out of the pump at high speed, enabling long-distance transportation.
Multotec Canada supplies a range of pumps for medium and heavy-duty slurry applications. Each can be customised to suit customer requirements and can be used for cyclone feeds, spirals feeds, mill discharge, tailings disposal, filter feed, effluent discharge, and spillage.
Multotec Canada’s customisable range of slurry pumps is suited for applications in Canada’s mining industry and can be applied on plants working specifically with coal, copper, iron ore, potash and gold. Each slurry pump is designed to client specifications. Our average lead time for slurry pump design and manufacturing is five weeks. Our branches in Edmonton, Montreal and Vancouver are available to help you find the ideal slurry pump solution.
Customised slurry pumps!
We make use of our global experience and local knowledge gained through research and development to manufacture slurry pumps tailored to your application-specific requirements. Our flameproof Vertical Spindle pumps were developed in this manner. Our range of slurry pumps has a long wear life and are cost-effective.
What’s inside Multotec Canada’s slurry pumps?
Our slurry pumps are made for applications in highly corrosive slurries, they are manufactured with various alloys, including chrome and rubber. Their robust construct helps to reduce downtime and wear, while replaceable liners improve protection and simplify maintenance. Below is a breakdown of what the slurry pumps are comprised of.
Outer casings
- Designed to achieve higher operating pressures and withstand extreme duties.
- Designed for easy assembly
- Lifting points above the centre of gravity for safer removal and assembly
Impeller
- The increased efficiency lowers overall lifecycle cost
- Designed for extended wear life
- Custom materials for heavy duty applications with higher abrasion and corrosive tolerance
Liners
- Less turbulence
- Cutting-edge wear-resistant materials
- Exchangeability of metal or elastomer liners
Sealing Chamber
- Increased sealing efficiency
- Designed to reduce gland service water requirement
- Dynamic, mechanical, and basic sealing arrangements
Bearing assembly
- Designed for maximum operation life and reduced maintenance
- Safe and easy to use
- Common assembly for up to 4 pump sizes lowers operating and inventory requirements.
Our range of slurry pumps
We offer a comprehensive range of customisable slurry pumps for applications in mining and mineral processing. Since 2015, Multotec has expanded its product range to include slurry pumps for ferrous and non-ferrous recovery processes.
Heavy-Duty Metal or Rubber Pump
This range of Multotec Canada’s slurry pumps can be used on coal mines to transport coal slurry from the mine to the processing plant. This range can also be applied in copper and iron ore mineral processing. They are specially designed and manufactured to have superior protection from corrosive materials. Any worn parts of this pump can be replaced by Multotec Canada.
HD Metal Pump assembly diagram
HD Rubber Pump assembly diagram
Pump features:
- Ideal for highly dense slurries
- Minimised vibration and shaft deflection
- Interchangeable liners
- Easy impeller adjustment with specialised bearing assemblies
- Designed to support standard- and heavy-duty bearing units
- Performance efficiencies of up to 5 000 m3/hr
Heavy-duty Non-lined Metal Pump
The heavy-duty non-lined metal pump is designed for use on copper and iron ore mineral processing plants to transport corrosive and abrasive slurry as well as tailings and concentrate from one part of the plant to another. The range of pumps is built to withstand rigorous operations. They are designed to lower ownership costs through minimal maintenance requirements and with parts that are easy to strip and reassemble.
Heavy-duty Non-lined Metal Pump assembly diagram
Pump features:
- Unlined volute design
- Interchangeable medium- and heavy-duty bearing units
- Simplified single-piece frame design
- Designed to support standard- and heavy-duty bearing units
- Minimised vibration and shaft deflection
Medium-duty Metal Pump
Medium-duty metal pumps are a range of slurry pumps that can be applied in gold mining. In this mining sector, the slurry pump is used to move slurry containing gold ore from the mine to the processing facility. They are also used to pump gold concentrate to the refinery. This versatile metal pump has been specifically
Medium-duty metal pump assembly diagram
Pump features:
- Unlined volute design
- Interchangeable medium- and heavy-duty bearing units
- Simplified single-piece frame design
- Designed to support standard- and heavy-duty bearing units
- Minimised vibration and shaft deflection
TV Sump Pump
Our TV sump pump is one of the world’s leading spillage pumps. This slurry pump is highly efficient and cost-effective. The TV slurry pump can be applied in coal mining and potash mining. In potash mining the slurry pump is used to extract the potash mineral from underground deposits and to transport potash slurry from the mine to the processing location.
TV Sump Pump assembly diagram
Pump features:
- Open impeller design
- Heavy-duty bearings
- Manufactured Y-piece into a single discharge
- Compact, lightweight design
- Various shaft lengths to suit your application requirements
Vertical Spindle (VS) Pump
Multotec’s VS Slurry Pump range is designed to handle slurries out-of-pit, tank, or dam applications. Its vertical design combined with a small footprint and various shaft lengths makes it ideal for diverse mineral processing applications. It can be applied in several ways in mineral processing, and can be used to move tailings and slurry in coal, copper, iron ore and gold applications. Our innovative range of VS slurry pumps is suitable for applications in acidic environments and is also fireproof.
VS Vertical pump assembly diagram
Pump features
- Non-submerged bearing design
- No shaft sealing required
- Large passage sizes
- No priming required
- High pulp densities
- Dual impeller design – dual suction single discharge
- ATEX function
How to install a Multotec slurry pump
Multotec Canada designs and manufactures slurry pumps that are built to last; however, the company has had instances where slurry pump applications have not functioned optimally. Many of these challenges are linked to the suction process of the pump. To eradicate this problem and ensure that the slurry pumps operate efficiently and for a long period of time, Multotec Canada offers a list of precautions that need to be considered during application.
The most important installation precautions are:
- Check that the impeller rotates freely, (although this is done at assembly. It is important to do prior to start-up to be certain)
- If necessary, adjust the impeller towards the suction, close enough so that the impeller is not in contact with the throatbush/suction liner
- Check direction of rotation of pump (done with belts slackened, by “bumping” the motor), this is done to ensure that the impeller, which is screwed on to the threaded shaft, is rotated in the correct direction thereby avoiding the impeller unscrewing and causing considerable damage
- Open inlet valve to flood/prime the pump
- If gland seal water is required, ensure supply is turned on
- Gradually crank open discharge valve as the pump picks up load. Pumping into an empty pipeline, particularly with long distances yields no resistance and the pump would tend to “drop off” the curve with high flowrate, and high-power draw
Check gland leakage and adjust as necessary (when pump is not operating – for safety). Following these steps, the monitoring & control side would now take effect.
5 tips to make sure your slurry pumps are functioning at their best
Everybody wants the best product adapted to their needs. But the thing is, having the best product to hand isn’t everything. You must carry out checks so your slurry pumps can run at their very best. Here are 5 tips to help you with that!
Inspection routine
Visualise: Make sure the pump shaft doesn’t move, that no components are loose, coupling is properly bolted and not loose and the motor is bolted and stable.
Touch and inspect: Verify that the motor doesn’t overheat and check periodically that there is enough lubrication as per the manufacturer’s best practice.
Listen: Verify that there are no strange or unusual noises.The alignment between the motor and the pump must be perfect
Misalignment can increase vibration and lead to premature wear of the internal components. Use a straight edge (as straight as possible) to obtain coupling between the pump and the shaft. For optimum alignment, we recommend using a laser alignment tool.
Vibration measurement analysis
Here are four reasons why you should carry out a vibration measurement analysis of your slurry pumps:
To minimise the effects on the durability of the pump.
To make sure the slurry pump can run constantly.
To make sure that material and pump temperature are stable, so thermal expansion is taken into account in the alignment.
To make sure there isn’t any air or cavitation (bubbles or cavities) inside the pump.
These measurements must be taken every three months until you have reached a critical vibration level. Remember to take measurements after the slurry pump has been running for at least an hour. If you measure it when it’s empty, there will be an imbalance (which is normal) and your analysis results will not be optimal.
Never run a pump without material for a period longer than 5 minutes
It is crucial to never run a pump empty to avoid overheating the bearings, cavitation and premature wear of the impeller.
Greasing points
Make sure greasing points maintenance procedures are followed in order to avoid premature wear or breakdown. Learn more about the factors to consider when selecting a slurry pump for your application, here. For more advice on slurry pump maintenance, don’t hesitate to contact our team of experts!
Slurry pump maintenance and spare parts
Multotec Canada supports your application by providing complete turnkey slurry pump services. From process and plants audits to engineering and manufacturing a pump to your specific requirements, through to aftersales pump services, we help ensure lower overall costs of your operation.
To keep downtime to a minimum, your local Multotec branch maintains significant stockholdings of slurry pump spares, so that we can respond to your technical requirements quickly, efficiently and reliably.
Multotec Canada supplies customisable slurry pumps for applications in mineral processing and mining applications for the country’s most valuable minerals including gold, copper, coal, potash and iron ore. Our innovative design and manufacturing processes are tailored to your requirements. Our pumps are built to not only last but also reduce downtime and costs. With over 50 years of expertise, trust Multotec Canada to help you achieve your mineral processing goals.
Frequently asked questions
A slurry pump's primary function is to move slurry through a piping system. A pump works by creating a liquid flow through the centrifugal force created by the rotation of an impeller. Slurry is sucked in by the rotation of the impeller and pushed out of the pump at high speed, enabling long-distance transportation.
Slurry pumps are specifically designed to handle high solids, abrasive and corrosive liquids that can damage other types of pumps. They are usually made of sturdier materials and have a more durable construction to withstand the wear and tear associated with pumping abrasive fluids. Overall, slurry pumps play a key role in many industrial processes by enabling the transportation of liquids containing solid particles or suspended matter.