high rate thickeners design

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High Rate Thickeners

That the storage of underflow is not required since not all high-rate thickeners are designed to accommodate a raking arms lifting device. That the liquid reporting to overflow and its passage over the weir is quiescent and evenly distributed. That the mass balance of underflow pumping and rake arms conveyance will not...

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AltaFlo™ High Rate Thickeners - WesTech Engineering

The AltaFlo™ ultra high-rate thickener is a rake-less thickener that provides mixing, flocculation and internal dilution followed by clarification and positive sludge collection and removal in a single tank. The principles of flocculation have been further adapted to a new design that will thicken slurries at an even higher rate...

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High Rate Thickeners - 911 Metallurgist

Mar 17, 2017 ... There are two basic types of high rate thickener units: Lamina or .... Figure 32 shows a competing design, similar in principle but different in configuration. Settled ... In the design of Fig. 33 the new feed is jetted into the thickening zone in such a way as to mix it thoroughly with the surrounding settled solids.

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Outotec® High Rate Thickener

Take advantage of our pioneering thickening and clarifying methods with the Outotec High Rate Thickener, including advances such as low-profile triangular rake ... settling rates (0.35-1.5 t/m2h); Offers consistent and high-density underflow; Gives good flocculation and feed distribution with our patented feedwell design...

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Thickening Resource Book - Maintained by Rudi Steyn

High rate thickeners are designed specifically to maximise the flocculation efficiency of flocculants. They differ from conventional thickeners in feed well design, size and control. Unlike conventional thickeners, high rate thickeners must use flocculants. The basic design of a high rate thickener is below. High rate thickener...

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MIP Thickener Design The following is a short cut to designing your ...

The following is a short cut to designing your own thickener: (a) Size of Thickener. As a first stab we can either use the thickener flux (m2/tpd) or the rise rate, depending if solids loading is the dominant (eg ... Therefore for a 12m diameter high rate thickener with the coal tailings duty, we can use medium duty. (K-Factor of 15).

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Thickeners: How they Operate - Mainland Machinery

Jan 12, 2017 ... Key to thickener operational efficiency is the solids must be able to settle 2-4 times faster than the nominal water up flow rate. High feed solids recoveries reporting to the bottom of the thickener ensures high solids recovery and high overflow clarity levels. Modern thickeners are designed based on use of...

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Thickeners - McLanahan

Clear water produced from underflow processed through McLanahan Thickener. Thickeners. Conventional. High Rate. High Density. Paste. Underflow Solids Concentration. Y ield Stress. Relative Underflow Yield Stress. As A Function Of Thickener Design. Thickener underflow from a McLanahan. Paste Thickener.

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High Rate Thickeners - IndiaMART

Business listings of High Rate Thickeners manufacturers, suppliers and exporters in India along with their contact details & address. Find here High Rate Thickeners suppliers, manufacturers, wholesalers, traders with High Rate Thickeners prices for buying.

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ThICKENERS - Tenova

Mar 30, 2017 ... With more than a thousand operating thickeners - our drive design is well known to be highly reliable and can be operated ... For 30 years DELKOR high quality drives have set the standard and with more recent advent of FEA the designs have ... The DELKOR High Rate Thickener is a proven performer.

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PHOENIX AltaFlo™ Ultra High-Rate Thickener

a PHOENIX Belt Filter Press or Recessed Chamber. Filter Press may be added to dewater the thickened slurry initially or at a later date. PHOENIX Model AF. AltaFlo™ Ultra High-Rate Thickener. Available in several sizes, general or seismic design and options including local control panel, bed level sensor and pressure...

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Improve Clarifier and Thickener Design and Operation

Flow scheme for clarifiers and thickeners. The feed flowrate (Qf) and concentration (xf) are normally design parameters. This leaves the designer or operator to determine the underflow pumping rate (Qu) (sometimes called blowdown) required to achieve a desired underflow effluent concentration (xu) . Since the underflow...

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FLSmidth - Hi-Rate Thickeners

In developing the Hi-Rate Thickeners, FLSmidth has drawn on decades of experience in flocculation and sedimentation technology from EIMCO and Dorr-Oliver. Extensive field tests are conducted to determine methods of introducing feed and flocculants to achieve design rated performance and thickening while keeping...

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Tenova Delkor - Mining Technology

The Delkor high-density thickener was a result of clients requiring higher underflow densities and improved water recoveries without extra cost in pumping system for transport. By increasing the height of the mud bed within the thickener, Delkor was able to achieve densities that were not possible in a standard high rate...

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thickeners and clarifiers - Roytec Global Pty Ltd

We specialise in the following Thickener technology;. • High Rate. • Conventional. • High Density / Paste. • Deep cone (raked and unraked). • Pin Bed and Dynamic Bed Clarifiers. • Underground Settlers. We use a combination of design approaches including first principles and an in-house developed iteration design...

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OVIVO® Thickener

Ovivo® bridge supported and column supported gravity thickeners provide high sludge concentrations and low solids effluent. The thickener mechanisms are robustly designed for long dependable life and can be tailored to a specific process. Ovivo thickeners can be used in new construction or designed to fit into existing...

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Thickening, Filtration and Clarification in the Phosphoric Acid Industry

Introduction. Phosphoric acid plant design begins with desired production rate in tons of P2O5, and addressing the primary equipment .... thickener type. Yield stress is defined as the stress that must be applied to the slurry before it starts to flow. The higher the underflow solids, the higher the yield stress produced. HiDensity...

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Thickener performance variability: underflow solids concentration ...

not thickened have been included. Table 1 Mines and thickeners information. Mine. ID. Ore type. Plant throughput. (Mtpa). SG. Thickener type. Thickener diameter. (m). Number of thickeners. Design. U/F solids. (%). Duration of record. 1. Zinc-lead. 1. 3.11. No thickener. N/A. 0. 30. 12 Months. 2. Gold. 1. 2.79. High-. Rate*. 24.

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Soluble metal recovery improvement using high density thickeners ...

This paper reviews the process used to select either the high rate or high density thickener technology for the Ruashi II copper- cobalt hydrometallurgical process in the. Democratic Republic of Congo (DRC), i.e. laboratory simulations, CCD simulations and thickener design details. Laboratory simulations. Mintek performed...

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Thickeners Rev 2 - WaXinhai

WaXinhai Hirate thickeners are designed to disperse flocculant efficiently into the settling zone of the thickener. The feed system is carefully designed in order to achieve this efficient flocculation. Increased flocculation efficiency is employed with a higher settling rate than conventional units resulting in a reduced surface area.

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High Performance Thickeners AKA-SET – AKW Equipment + ...

Macro flocs will be created due to the flow route of the flocculated feed slurry in counter-current to the sedimenting particles in the filtering zone. These flocs will sediment at a higher speed than the micro flocs of conventional thickeners. This results in a higher loading rate per unit settling area and smaller thickener...

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Biosolids Technology Fact Sheet Gravity Thickening - epa nepis

Gravity thickening uses the natural tendency of higher-density solids to settle out of liquid to concentrate the solids. Gravity thickeners consist of a ... Settlement continues as solids begin to concentrate near the bottom of the tank, but the settlement rate decreases as the solids concentrations increase. This is known as...

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Intelligent Control of an Industrial Thickener - Semantic Scholar

The high rate thickener operates continuously with a 95% of availability. High rate thickeners are designed specifically to maximize the flocculation efficiency of flocculants. They differ from conventional thickeners in feed well design, size and control [17]. Unlike conventional thickeners, high rate thickeners must use...

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Paste Thickeners - Jacol

Why Choose a Paste Thickener? WesTech paste thickener design allows for increased performance compared to conventional or high-rate thickeners. A smaller footprint, increased water recovery, and paste/thickened tailing underflow translate into great advantages. WesTech's paste thickeners produce non-Newtonian...

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TOP? Thickener - Westech - PDF Catalogue | Technical ...

Ineffective Dilution AirLift™ Dilution Thickeners often require dilution of the feed to improve settling rates and floc consumption. ... Extreme Duty Drive WesTech's TOP thickener drive design includes direct in-line high-efficiency reducer and motor stacks, a durable precision bearing, state-of-the-art torque protection, rake...

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Products & Services - MIP Process Technologies South Africa ...

Perhaps the most significant design optimisation effort in thickening in the last twenty years has been in developing ways to more effectively use the horizontal cross sectional area of the thickener. The introduction of polymeric flocculants gave an impetus to development of High Rate Thickeners. The result is now common...

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Tailings.info Laboratory and Pilot Plant Testing Programmes

These pilot plants are fundamentally focused on thickening trials to determine the ability to increase the solids concentration of the tailings towards or beyond paste while defining: Full scale thickener type and sizing (high compression, high rate, deep cone); Feedwell and underflow design (optimising inflow and underflow...

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Tailings.info Thickened Tailings Storage - A discussion

This is normally achieved by using compression (or high rate) thickeners or a combination of thickeners and filter presses. High Density Thickened Tailings (HDTT) are ... The final point relating to beach slope is an important design parameter for thickened tailings storage facilities. In conventional tailings deposition the...

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CHAPTER 3 SLUDGE THICKENING

concentration, the dewatering units concentrate the sludge to higher than 15% ... Design of Thickeners. The thickening process takes place in a settling tank with long-enough solids retention time. For example in secondary clarifiers of activated .... top does not exceed the rate at which solids are transmitted to the bottom.

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FL SMIDTH Ultra High Rate Tailings Thickener Package (Used) for ...

FL SMIDTH Ultra High Rate Tailings Thickener Package, 328212 Gallon Capacity, Rake Torque Design: 720000 ft. lbs. Includes Pumps, and Tank.

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2018 high capacity thickener - anzos-ossanz-aoco.org

ThickeningResource BookThickening Resource Book.High Rate Thickeners High rate thickeners are designed specifically toAdequate reserve capacity to withstand upsets and Chat Online China High.

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Steady-state, control, and capacity calculations for flocculated ... - Tue

design. Steady-state analyses and methods of thickener design that are essentially based on Kynch's theory include the papers by Talmage and Fitch (1955), ..... Of course, the solids concentrations in the discharge and overflow zones. Fig. 2. A CT operating at steady state in (a) conventional and (b) high- rate mode. 277.

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Fraccaroli & Balzan manufactures static decanters and high rate ...

Fraccaroli & Balzan S.p.A. offers vertical clarifiers and high rate thickeners, with a treatment capacity from 100 lt/min to 41.000 lt/min. The plants are designed in accordance to the specific customers' requirements. Fraccaroli & Balzan S.p.A. can offer a full range of plants, from simple installations to PLC equipped systems...

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high rate thickener for vanadium in united states

copper technology and competitiveness - princeton universityrecommended citation u s congress office of technology assessment copper technology and paste thickener design to achieve downstream requirementsjul 11 paste thickeners are uniquely different than conventional and high-rate thickeners high-rate. Get Price...

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Tailings Central Thickened Discharge; challenges ... - SRK Consulting

Aug 2, 2016 ... The fines would be thickened in deep cone thickeners and flotation tailings would be thickened in a high rate thickener. Thickened underflow from both thickeners would be combined and pumped to the TSF. A geotechnical and rheological testwork programme was undertaken to support the design concept...

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High rate thickener available from Outotec - Ferret

May 27, 2008 ... A thickening technology is currently being designed by Outotec for First Quantum Minerals' Kolwezi US$550 million-plus project in the Democratic Republic of Congo. The thickeners, due for delivery and installation at Kolwezi in early 2009, include nine high-rate and high compression thickeners for the...

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Unit Operations in Mineral Processing - MyCourses

Mar 3, 2016 ... Minerals have higher density than water, the most common carrier. • But this may be problematic if particles are too small, or if carrier is a high density liquor. Page 3. 03/03/2016. 3. Sedimentation. • Design and operation. Thickener ... thickner as a funciton of solids content, feed flow rate and thickener area:.

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MODULE 9.

For trickling - filter humus, k is assumed to be in the range 0.3 - 0.5, with the lower value for light BOD loadings and the larger number applicable to high -rate filters ..... Most continuous flow thickeners are designed with a side water depth of approximately 3.5 m to provide an adequate clear-water zone, sludge blanket depth,...

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Field Services - Paterson & Cooke

We provide a range of field services including on-site pilot scale test work, design reviews, equipment and process audits, performance optimisation, upgrades & retrofits, performance ... On site slurry behaviour and paste thickening test work in support of a cost study comparing High Rate and Paste thickening options.

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MIXERS AND THICKENERS FOR THE MINING INDUSTRY ...

Feb 12, 2008 ... Due diligence has been paid to the thickening circuit by the end client, EPCM, and Lightnin Africa to cover all scenarios. Lightinin 2. A Lightnin thickener in a coal thickening application. A further contract that has recently been awarded is for the design, supply, installation and commissioning of six high rate...

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