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Outotec Thickening technologies

2017-02-06· Outotec Thickening technologies 003 Benefits of Outotec Thickening solutions Coal paste thickener, Australia Paste plant, Sweden Mineral sands tailings, Australia Gold tailings, Australia Lime saturators, Australia Copper tailings, Chile Low capital cost Optimized design High rate

THICKENERS AND CLARIFIERS Roytec

2019-06-03· The ETAQ™ feed dilution system, comprises an axial infow / radial outfow pump specially designed for high volume low head operation. The ETAQ™ draws supernatant from the Thickener surface and pumps into the RADFLOW™ feed stream to achieve the perfect level of feed dilution for optimal focculation. Deflector plate feedwell Radflow™ feedwell

Flocculant Dilution System in Thickener Feed well

2020-05-13· In order to maximise the benefits obtained from flocculating agents when used as settling aids in high rate and conventional thickeners, it is often necessary to dilute the thickener feed prior to flocculant addition. In some cases, no flocculation at all is possible unless dilution water is used. The most common method of diluting thickener feed has been to recirculate some of the thickener

Design and development of a novel thickener feedwell using

2012-11-21· thickener at an Anglo American Platinum site in South Africa. A number of operational factors complicate this application, but indications are that the new feedwell has led to improvements in stability and underflow properties. Keywords thickener, feedwell design, flocculation, energy dissipation, computational fluid dynamics, simulation.

Thickener Operation and Flocculant Application

2020-05-15· Flocculant dilution systems are being installed at both the preoxidation thickener and the CCD thickeners. Each system will provide a minimum 100:1 dilution to each thickener using its own overflow. A vertical centrifugal pump will deliver preoxidation thickener

Beginners Guide to Thickeners Outotec

Feedwells and flocculant dosing control have a significant influence on thickener performance. Flocculation is controlled by varying the flocculant pump speed to achieve a consistent flocculant dosage rate per ton of dry solids feed. Care

ANDRITZ thickening and clarification systems

ANDRITZ thickening and clarification systems In the most challenging applications, reliable liquid clarification and slurry recovery is critical to maintaining continuous production. This is why ANDRITZ has put decades of expertise into thickening and clarification systems

Pulp, paste and putty: thickeners and flocculants for high

Thus the diameter of the thickener is determined by selecting a rise rate at which acceptable solids carry over is produced, as demonstrated either by Continuous (Dynamic) test or by a factor over the free settling rate. The rise rate during testing must allow for dilution systems which can result in high localised convention effects.

ROYTEC RADFLOW™ THICKENER FEEDWELL

2019-06-03· ETAQ™ DILUTION PUMP The ETAQ™ feed dilution system, comprises an axial inflow/radial outflow pump specially designed for high volume low head operation. The ETAQ™ draws supernatant from the thickener surface and pumps into the Radflow™ feed stream to achieve the perfect level of feed dilution for optimal flocculation. 3.000 2.667 2.333

Underflow pump Problems Remedies Thickener 1 Increase

Underflow pump Problems Remedies Thickener 1 Increase polymer dilution Reduce from CEIC 3004 at University of New South Wales

Thickener Feed System Design WesTech Engineering, Inc.

2020-05-15· Thickeners often require dilution of the feed to improve settling rates and flocculant consumption. Dilution systems that rely on specific gravity differential between the feed and supernatant are often limited. WesTech’s AirLift™ dilution system uses an airlift pump to draw clarified water evenly from the thickener

Design and Operation of the Kupol Project Counter-Current

operating pump for each thickener with one common standby pump. Flocculant dilution liquor is used to dilute the floc solution from the 0.5 wt% stock solution it is made up and pumped at to the roughly 0.02 wt% that it typically works well at. If it is added at the stock concentration it

ANDRITZ Thickener Thickening • Clarification • CCD Circuits •

Thickener tank CFD Bridge FEA Direct drive head 2 THK-AD-06_11.qxp_Layout 1 01.10.13 16:01 Page 2. Paste and underground technology Customized solutions Mixing & Counter Current Decantation (CCD) technology CCD dilution pump/mixers allowing "flat" designs and elimination of el-evation differences between CCD

Thickening Resource Book

2010-07-14· dilution effect. The floc particles agglomerate and settle to the surface of the thickening pulp, T H I C K E N I N G 6666 Thickeners A thickener has several basic components: a tank to contain the slurry, feed piping and a feed well to allow the feed stream to enter the tank, a rotating rake mechanism to assist in

ThICKENERS TENOVA

2017-04-03· thickener using a low head axial pump to drive dilution water into the feedwell. The main advantage of the Forced Dilution system is that it takes the overflow liquor from a large surface area ne- gating the risk of causing localized high internal rise rates.

US7988865B2 Feedwell dilution system for thickeners in

A feedwell dilution system for diluting an influent feed stream, which include at least one eductor assembly, and a feedwell assembly. The at least one eductor assembly includes a feed pipe which converges to a narrow throat portion or nozzle; a mix tube positioned downstream from the narrow throat portion that is sized and configured to provide mixing of the influent feed stream and a

Automatic Sludge Blanket Control in an Operating Gravity

Thickener 4 pump operation continued uninterrupted from September 6-16 except for one hr on September 8, during the calibration of the Parshall flume, and 0.5 hr on September 13 when the sludge blanket probes were checked for film accumulation. As indicated in Figure 10, blanket control was not maintained using the low underflow pumping rates.

Variable dilution feed system for thickeners

GL&V Australia has developed a variable dilution feed system for thickeners that provides greater flexibility in dilution control on thickener feed systems.. The new system is based on the technology introduced with the company’s patented Eimco E-Duc feed dilution system. Released in 1999, the E-Duc system uses the head of the undiluted feed as the driving force for the eductor nozzle, which

Let's Talk About Poo: GRAVITY THICKENER OPERATION

2020-02-29· How to optimize thickener operation. Pump lots of thin fresh sludge. Your primary clarifier should ave a ZERO blanket. Yes, it should. This keeps the sludge fresh and promotes fast settling in the thickener. I taught

(PDF) THICKENER DESIGN, CONTROL AND

THICKENER DESIGN, CONTROL AND DEVELOPMENT. Slurry pump design for high viscos ity slurry may include opting for “wide throat” inlet designs, Thickener feed dilution flow

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