Flotation technology
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Superior Metallurgy & Higher Availability

FLSmidth Flotation Technology FLSmidth has assembled un-paralleled flotation resources and is fully invested in leading edge flotation research to give our customers the best flotation solutions now and in the future. Below is a photo of the largest flotation installation in the world consisting of 66 250m3 Wemco Flotation Machines located in Mexico

FLSmidth is the leader in flotation technology with sound metallurgical design principles anchored in the world’s most efficient designs. We have integrated the expertise of three world leaders with the addition of Dorr-Oliver and Wemco to create the ultimate flotation technology for process specific solutions. The two most significant factors impacting a flotation plant’s financial performance are metallurgical recovery and flotation cell availability. FLSmidth flotation machines excel in both of these important criteria. Versatile Solutions FLSmidth is the only company to offer you both...

WEMCO Flotation Machines ® WEMCO® Flotation Machines have the largest installed base of any flotation Machine around the world. 250m3 Wemco Cells installed in a Copper plant in Mexico

Wemco Flotation The self aspirating Wemco flotation technology, whether incorporated into the original 1+1™ Flotation Machine design or newer generation SmartCell™ Flotation Cell combines ease of operation with improved metallurgical performance. The Wemco rotor is positioned higher in the flotation tank resulting in the following advantages: • horter froth travel distance for S improved coarse particle recovery • educed maintenance and R greater availability »» otor is positioned near the R top of the cell resulting in less wear »» eversing and inverting rotor R extends life »» echanisms...

Dorr-Oliver Flotation Cells ® While excellent as an “all around flexible” flotation machine the Dorr-Oliver design is well suited for fine particle recovery with multiple high energy contacts and high bubble surface area flux. 130m3 Dorr-Oliver flotation Cells in a South African Platinum Group Metals Plan

Increased Fine Particle Recovery The Dorr-Oliver Flotation Mechanism is the most energy efficient, technically advanced, forced air flotation machine on the market. It has been specifically designed to maximize fine particle recovery. The Dorr-Oliver streamlined, high efficiency rotor is a very powerful pump that works together with the stator to generate and define an energy intensive zone in the bottom of the cell. This ensures effective solids suspension and the ability to restart in even the most difficult of applications. The well defined turbulence zone at the bottom of the cell...

SuperCell Flotation Cells ® FLSmidth is the world leader in large cell tech­nol­o­gy with the greatest installed capacity of any flotation man­u­fac­turer (Above) 350m3 SuperCell installed with a Dorr-Oliver mechanism in a copper installation in the USA. (Below) 300m3 SuperCells with Wemco mechanisms installed in a Copper plant in Ch

FLSmidth is pioneering the way for large cell technology with the largest operating cells on the market today. From our first 250m3 cells installed in 2003 to now with up to 350m3 designs and 300m3 cells being installed around the world. The 350m3 SuperCell™ flotation cell is the largest operating flotation cell in the world with proven performance in hydrodynamics, metallurgy, and mechanical reliability. FLSmidth has the largest installed based of large cells around the world. Over 50 of the 300m3 SuperCells have been sold and over 100 of the 250m3 cells have been installed. The SuperCell...

Mixed Rows ™ & Mixed Circuits ™ By combining Wemco® self aspirated and Dorr-Oliver® forced air cells in the same plant FLSmidth can exploit their unique characteristics to maximize circuit and row performan

FLSmidth Mixed Rows™ & Mixed Circuits™ In the past, mineral producers had to choose between mechanical flotation systems that naturally ingest ambient air and others that require a blower. FLSmidth is in the unique position to exploit the inherent and unique advantages of both the Wemco® self aspirated and Dorr-Oliver® forced air technologies. These two types of machines can be used in different parts of the flotation circuit forming a Mixed Circuit™ or in a single row forming a Mixed Row™. Mixed Circuits™: Wemco for Recovery & Dorr-Oliver for Cleaners The Wemco design with its agitator...

Optimizing Flotation Control FLSmidth’s advanced process control solution, ECS/ ProcessExpert, ensures that flotation cells perform better resulting in optimized plant performance for grade and recovery. FLSmidth Engineer using a remote automated control unit to manage process and flow of a 300m3 SuperCell™ Flotation Machin

Why Automate? FLSmidth’s ECS/ProcessExpert provides advanced process control and optimization for minerals plants, focusing on ensuring maximum efficiency and higher profitability. ECS/ ProcessExpert stabilizes the flotation plant flow, and adjusts and maintains operational set points so that target performance is optimized and constantly achieved. FLSmidth’s accumulated process knowledge as a technology leader in flotation forms the basis for a robust and reliable automated control solution. Optimizing flotation control (Content on how ECS/ProcessExpert optimizes flotation needs to be...

Research & Development FLSmidth is devoted to advancing flotation with new and innovative methods and designs. CFD modeling of Wemco mechanism

FLSmidth is the only manufacturer that provides self induced and forced air types of full scale flotation equipment, which allows us to deliver the right flotation equipment to any mineral application. Although the Dorr-Oliver and Wemco flotation machines differ in their operational philosophy, the physics of the separation process is the same. The flotation cell’s design is based on fundamental hydrodynamic and metallurgical principals. Each type of flotation cell has unique hydrodynamic characteristics, which can all be characterized by the same set of dimensionless quantities. Which...