Printer Friendly

Eriez HydroFloat separator recovers coarse particles.

To effectively recover coarse particles, the Eriez Flotation Division has combined the advantages of traditional teeter-bed separators with the selectivity of flotation cells to develop a new separation device, the HydroFloat Separator. The primary benefit is the flotation of very coarse material (up to 6 mm or 0.23 in.) that is otherwise lost using conventional methods.

The HydroFloat Separator is both a flotation device and a density separator, combining the advantages of froth flotation and gravity separation. With this technology, the HydroFloat enhances coarse particle recovery, produces higher throughout capacity and reduces reagents and air consumption.

The theory of operation is based on flotation fundamentals. Fluidization (teeter) water is supplied through a network of pipes that extends across the bottom of the cross-sectional area of the separation chamber. The teeter bed is constantly aerated by injecting compressed air and a small amount of frothing agent into the fluidization water.

As the air bubble dispersion rises through the teeter bed, the bubbles become attached to the hydrophobic particles, reducing their effective density and increasing their buoyancy. The lighter bubble particle aggregates rise to the top of the teeter bed and overflow the top of the separation chamber.

Hydrophilic particles that do not attach to the air bubbles continue to move down through the teeter bed and eventually settle into the dewatering cone. These particles are discharged as a high-solids stream through a control valve at the bottom of the separator

Eriez Flotation Division, efd.eriez. com/Products/Index/Hydrofloat


COPYRIGHT 2017 Mining Media, Inc
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2017 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Title Annotation:EQUIPMENT & TECHNOLOGY: SCREENING & SIZING; Eriez Flotation Division
Publication:Rock Products
Article Type:Brief article
Geographic Code:4EUUK
Date:Apr 1, 2017
Previous Article:Polydeck debuts revolutionary Kwikdeck system.
Next Article:CoaXPress integrates machine vision into the industrial internet of things.

Terms of use | Privacy policy | Copyright © 2021 Farlex, Inc. | Feedback | For webmasters |