Photo Gallery | Locations | News Flotation Applications Sparging Services About Contact Resources StackCell® Flotation Home / Flotation / StackCell® Flotation StackCell®… Column-like performance in a substantially smaller footprint These compact, stackable units offer considerable savings for new installations and are ideal for expanding capacity in an existing plant. A new high-capacity flotation technology, the StackCell®, has been developed as an alternative to both conventional and column flotation machines. This technology makes use of a pre-aerated, high-shear feed canister that provides efficient bubble-particle contacting, thereby substantially shortening the residence time required for coal flotation. Other potential advantages of the process include low air pressure requirements, low capital and installation costs, and increased flexibility in plant retrofit applications. Recent full-scale plant trials suggest that this low-profile technology can provide coal recoveries and product qualities comparable to column flotation systems. Two full-scale approaches were tested including a single unit rougher application as well as a 3-stage, in-series arrangement. In the rougher application, the StackCell® was able to successfully offload an existing overloaded flotation circuit which resulted in an increase in combustible recovery in excess of 90%. For the 3-stage circuit, the metallurgical results show that the StackCells, when arranged in-series, are meeting the design requirements at an acceptable combustible recovery, product carrying capacity, and product ash content. StackCell® technology provides an alternate means to efficiently achieve column-like performance when plant space and/or capital is limited. In particular, the small size and low weight of this new technology makes it amenable to low-cost plant upgrades where a single unit can be placed into a currently overloaded flotation circuit with minimal retrofit costs. StackCell® features: Small Footprint Gravity Feed System High Throughput with Low Residence Time Stackable Design Low Energy Input Costs High Shear Bubble Generation Eriez Flotation StackCell® Animation: Eriez StackCell® flotation machine decouples bubble -particle attachment and froth recovery. Attachment is optimized in a high shear single-pass collection chamber. While froth recovery and concentrate grade is maximized in a separate quiescent flotation chamber. These high rate, compact units offer considerable savings for new installations and are ideal for expanding capacity in an existing plant. StackCell CPSA Article Download PDF StackCell Flotation - A New Technology for Fine Coal Recovery Download PDF The Application of the StackCell Technology for Fine Coal Recovery StackCell technology application and fundamentals, along with data presented from the Kanawha Eagle installations. Download PDF Energy Reducing Flotation Improvements HydroFloat and StackCell systems radically improve separation and recovery of Coarse & Fines particles. Download PDF A New Paradigm in Sulphide Processing By classifying flotation feed at a point where coarse recovery deteriorates, the existing flotation circuit can be optimized to improve performance. Download PDF White Paper: A New Paradigm in Sulfide Processing Originally appeared in Engineering & Mining Journal. By classifying flotation feed at a point where coarse recovery deteriorates, the existing flotation circuit can be optimized to improve performance. Download PDF FGB-106A-Eriez-StackCell Download PDF Wasmund et al CMP 2018 Manuscript Final Benchmarking performance of StackCell with conventional cells for bulk copper flotation roughing Download PDF StackcellTechNote Download PDF HydroFloat Paper MinEng 2018 Minerals Engineering 121 (2018) 83-89 Download PDF StackCell Paper MinEng 2018 Minerals Engineering 121 (2018) 137-145 Download PDF MetPlant 2017 - StackCell Paper recently presented on StackCell test-work in Australia Download PDF Copper 2019 StackCell Presentation -final Download PDF Wasmund et al Copper 2019 StackCell Manuscript -final Download PDF Photos Previous Next Previous Next Principle of Operation During operation, feed slurry enters the separator through either a bottom-fed or side-fed feed nozzle at which point low pressure air is added. The slurry travels into an internal pre-aeration sparging device that provides significant shear and contacting prior to arrival into the separation chamber. In fact, all of the necessary bubble-particle contacting is conducted in an aeration chamber prior to injection into the primary tank which is used only for the phase separation between the pulp and the froth. A liquid slurry level is maintained inside the tank so as to provide a deep froth that can be washed, thereby providing a high-grade float product. Froth is then carried into the froth launder via mass action. These separators are specifically designed to have both a small footprint and gravity-driven feed system that allows cells to be easily “stacked” in-series or placed ahead of existing conventional or column flotation cells. As such, the StackCell® successfully integrates key design characteristics of both traditional column flotation and conventional (mechanical) cells. StackCell® Circuit Configurations StackCell can be deployed in multiple circuit configurations. The above graphic shows possible circuits. First, StackCells can be positioned in a stackable series taking advantage of the gravity flow system continuously improving grade throughout the process. Second, StackCell® can be used to add capacity or be used as a rougher in a traditional Column Cell Flotation circuit or mechanical cell circuit. World Authority in Advanced Separation Technologies About Eriez Flotation Eriez’ Flotation provides advanced engineering, metallurgical testing and innovative flotation technology for the mining and minerals processing industries. Strengths in process engineering, equipment design and fabrication position Eriez Flotation as a leader in minerals flotation systems around the world. Read More Site Map Home Flotation Systems Sparging Laboratory Testing Publications News Contacts Eriez Corporate Eriez Lab Equipment for Sale © Copyright 2021. Eriez Manufacturing Co. All rights reserved. | Privacy Policy EFD Portal