Metso Full portfolio Flotation Level Control Upgrade
Improve flotation cell throughput, performance level, and reliability with a Metso Flotation Level Control Upgrade.

Flotation upgrades to help you achieve your sustainability and production targets

Increased availability

 

With accurate, reliable level control

High reliability

 

Tailor-made solutions that to increase metallurgical performance

Robust design

 

Flexible to capacity changes

Process stabilization

 

With electro-pneumatic dart valves & long-stoke actuators

Benefits
  • A tailor-made solution that provides accurate and reliable level measurement and control
  • Improved availability
  • Process stabilization
  • Stable process ramp-up
  • Robustness for capacity changes
Benefits

Accurate, reliable level control is key to maintaining the availability, capacity, and metallurgical performance of your flotation process. Common challenges include accounting for fluctuations in cell levels caused by changes in volumetric flow, and the high wear of parts such as plugs, sockets, and sliding components that can result in frequent unplanned maintenance.

An effective level-control system comprises a reliable and accurate measurement instrument, accurate control valves, and an optimized control system. It is generally accepted that an internal dart valve is the most efficient and reliable way to accurately control the flow of slurry out of a cell. The Metso dart valve is electro-pneumatic and has long-stroke actuators to ensure smooth and accurate control. It is constructed from robust stainless steel, with polyurethane or rubber sockets and dart plugs that have a long lifetime.

We also offer level measurement solutions such as mechanical ball floats and the state-of-the-art Metso LevelSense system, which is a low-maintenance solution that enables accurate measurement of the slurry-froth and froth-atmosphere interfaces. By upgrading your level control system with the latest  Metso technology you can improve flotation cell throughput, performance, and reliability. We offer level control upgrades for all Metso TankCell® and OK cells.

Flotation controls
Flotation controls

FREQUENTLY ASKED QUESTIONS

QUESTION
ANSWER
When should I consider upgrading my level control system?You should consider upgrading if you want to switch from manual to automatic control, or if you don’t typically operate with a valve opening of between 20 and 70%.
Is there a reliable way to measure froth bed thickness?Metso LevelSense – our proven, low-maintenance solution – is the best available technology for slurry-froth measurement.
Is it possible to use my existing level-control components in combination with the upgraded ones from Metso?Providing your existing components are compatible and meet the required standards for accurate level control, they can be used alongside the upgraded components.
Will I need to replace the actuator if the volumetric flow through the dart will be larger or smaller?The actuator may need to be replaced with a larger or smaller unit, but Metso specialists will first check whether the existing unit is capable of handling the new volumetric flow and dart stress.
Are there any special requirements if multiple cells in the same level step are controlled by two valves?

We always recommend using cells in a single step, as this optimizes metallurgical control. For plants where multiple cells are in the same level step, we will design the dart-valve upgrade accordingly.

 

  • Dart valve seats, plugs, rods, and guide blocks
  • Actuator units
  • Level-measurement instrument
  • Control system with advanced control algorithms
  • Installation and ramp-up services

Value calculators & recommender tools

Reaching your sustainability targets?
Find out how our flotation, thickener and analyzer services help to achieve your sustainability targets
Don’t let problems sink your recovery rates
Learn the logic behind setting up your flotation controls and well as tips and tricks to best utilize the control system in this webinar.

Download

Name
Size
Flotation level control upgrade leaflet 532 kB
Flotation level control upgrade leaflet
Size
532 kB
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