fonction of the tailings thickener 5885

Paste technology: An alternative look at tailings ...

PASTE-THICKENED TAILINGS An alternative that has been around for some time is the use of paste-thickened tailings. Paste-thickened tailings or paste technology (it is known by a variety of terms) has had a successful history in the mining industries, treating a range of tailings materials.

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Tailings Central Thickened Discharge; challenges faced and ...

Tailings central thickened discharge; challenges faced and lessons learned from design to operation . Juan Jose Moreno and Nicholas Thompson . The operation required a review of the operating conditions and the design of an expansion to cater for an extended life of mine (LOM).

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How tailings dams work - vancouversun.com

An aerial view shows the damage caused by a tailings pond breach near the town of Likely, B.C. Tuesday, August, 5, 2014. The pond which stores toxic waste from the Mount Polley Mine had its dam ...

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Dewatering Screen | for Coal, Slurry, Mine Plant - JXSC ...

The tailings dewatering screen is also called the tailings dry sieving screen. In addition to the various excellent properties and functions of the ordinary dewatering screen, the tailings dry sifting screen is combined with the thickening machine for the tailings dry platoon. It is the best dewatering screen and tail at the moment.

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Tailings Mineral Industry Solution - WesTech Engineering, Inc.

The Conventional Thickener. ... Conventional Thickeners are generally incorporated in heavy duty applications when the underflow density is high and substantial torques are required to convey the settled solids from the periphery to the central outlet for pumping away. ... In 1964 there was a project to reprocess the huge piles of tailings that ...

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How to Operate a Thickener - Mineral Processing & Metallurgy

Metallurgical ContentThickening In CyanidationSlime LayersThickener SegregationFollow OrdersA Few Other PointsIsland FormationHow to Operate a Grinding CircuitHow to Operate a Flotation CircuitThickener Operating Instructions Running a thickener properly isn’t as easy as it looks. True enough, a thickener doesn’t make a racket like a ball mill, or spew out froth like a flotation machine ...

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flotation thickener process sand line pdf - BINQ Mining

Dec 08, 2012· > Crusher and Mill > flotation thickener process sand line pdf; Print. flotation thickener process sand line pdf. ... Function of the thickeners: • thicken the flotation tailings ... ECONOMICS OF REFRACTORY GOLD ORE PROCESSES. Cone. thickening 0.05 0.05 Tailings line 0.10 0.10 Water reclaim 0.01 0.01 Concentrator total …

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Design Considerations for a Tailings Disposal System | E & MJ

According to Niederhauser, more mines are looking to stack dry tailings using filtration (or a filtered cake). “There is a role for a high density thickener in this process as well,” Niederhauser said. He cited a U.S. coal application that uses a plate-and-frame press. The mine filters thickened tailings from a high density thickener.

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Thickeners | Mining Tailings Dewatering - JXSC Machine

【Description】 The thickener is applicable to concentrate and tailings dewatering treatment in the mining application, widely used in metallurgy, chemical industry, coal, non-metallic mineral processing plant, environmental protection and other industries. In fact, the high-efficiency mining thickener is not a gravity separation equipment, but a piece of dewatering equipment combined with ...

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De-Watering Information and Equipment

Types of dewatering equipment covered are Thickeners (Gravity) A thickener is a machine that de-waters slurry, separating the liquid from the solids. The solids' particle size range in thickeners is generally from 0.5 mm to a few microns. The finer the particle size, the …

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A description of the sedimentation process during dynamic ...

A description of the sedimentation process during dynamic thickener operation A.J. Vietti and F. Dunn 2 Paste 2014, Vancouver, Canada consolidation theory was applied to the settling of compressible slurries (Shirato et al., 1970) which led

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Chapter 3 Rheological Concepts - acg.uwa.edu.au

determine the thickening requirements represented by point 3 in Figure 3.3. The thickener should be designed and operated to produce the required tailings’ properties via determination of thickener size and geometry, and control of flocculation and pre-treatment requirements.

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Review of the potential role of electrokinetics technology ...

minerals from tailings; these include DRDGold, Lonmin and Sibanye mines in South Africa. Dewatering systems are designed to be in close contact with tailings and if they can perform the dual function of recovering water while extracting metals, they would fully meet the demands of the mining industry.

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Tailings co-disposal case study – art or science? - BASF SE

thickener feed bin and the tailings bin at the PCP and controlling the lime additions based on pH. Polymer addition to the slimes thickener (centre-well) and tailings (end-of-line) were augmented with significant quantities of recycled dilution water to minimise polymer dose. 2.2 Results and discussion

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Thickeners or thickener plants - Outotec

Thickening or dewatering may be defined as the removal of a portion of the liquid from a pulp or slime made up of a mixture of finely divided solids and liquids. The early methods of thickening employed plain, flat-bottomed tanks into which the pulp was fed until the tank was full. The solids were then allowed to settle as long as required, the top liquid was decanted, the settled solids were ...

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Tailings Central Thickened Discharge; challenges faced and ...

tailings dam failures, the impetus to fast track the industry to store tailings with minimal water has been increased, leading to thickening and filtering of tailings becoming the norm rather than the outlier in the near future. However, the deposition of thickened tailings has also encountered many operational challenges over the

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Tailings Thickeners - Coal - Hawk Measurement

control loop to automate this function if the “clarometer” failed. Hawk manufacturers the largest range of sonar transducers to provide optimized performance, for all bed level thickener applications e.g concentrate thickeners etc. Ordering information: Tailings thickeners part no: OSIRDYX + OSIRT302S4XC6 + OSIRME-L3 + OSIRSC-A

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Design and Functions of Gravity Thickener - Xinhai

After the pulp with certain density is fed into the thickener by feeding device, the particles in the slurry will settle under the effect of gravity, while the clean water is on top, which achieves the solid-liquid separation. Besides, the thickening tank’s bottom is designed as a cone.

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THE ROLE OF ORE PROPERTIES IN THICKENING PROCESS

Abstract: The role of ore properties (density, particle size, and mineralogy) in thickening process was studied in this research. The shaking table was used to prepare the sample for the tests. The tailings were continuously fed on the table by gravity to separate the tailings in three products as slime, middling and coarse particles.

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Raking Effects on Aggregate Densification and Channelling ...

As the aggregate structure broke and densified, the void ratio and pore size of the mud bed were decreased. Thickening performance enhancement was predicted based on solid flux and permeability of mud bed, and the result indicated raking on aggregate densification and channelling apparently improves the unclassified tailings dewatering extent.

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Tailings - Wikipedia

Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore. Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.

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Design procedure for hydraulic backfill distribution systems

classified tailings flow behaviour for the range of solids concentrations normally used in backfill distribution systems (Cooke et al.1992). Classified tailings backfill slurries generally have solids concentrations close to or less than Cfree and are referred to …

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Beginners Guide to Thickeners - Outotec

Beginners Guide to Thickeners; Beginners Guide to Thickeners. Thickening is a process where a slurry or solid-liquid mixture is separated to a dense slurry containing most of the solids and an overflow of essentially clear water (or liquor in leaching processes).

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(PDF) Understanding the Thickening Process - ResearchGate

Understanding the Thickening Process ... filters and also model settlement in tailings dams. Thickener dimensions were used in a steady state thickener model to …

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Tailings Ponds 101 | Oil Sands Magazine

Tailings ponds are massive earth structures used to store coarse and fine solids contained in the oil sands deposit and recover water back to the main processing plant. These ponds are temporary storage facilities and need to be reclaimed when no longer in use.Fine solids from tailings streams tend to trap large volumes of water, making pond reclamation challenging at best.

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4 x Flowrate 4 x 200 π Riserate - MIP Process Technologies

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 (m. 2 /tpd) or the rise rate, depending if solids loading is the dominant (eg. Platinum Tailings) or feed flow rate (e.g. Clarification or low feed solids).

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Pulp, paste and putty: thickeners and flocculants for high ...

The primary function of a continuous thickener is to perform this particulate concentration so that steady-state material balance is achieved in a controllable and predictable manner. The concentrated solids being withdrawn from the thickener in the underflow is at a rate that matches the more dilute feed supply over selected time frames.

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High-Rate Thickeners | McLanahan

Why McLanahan High-Rate Thickeners. Integration of McLanahan High-Rate Thickeners into a plant is simple. Control systems take care of most of the operation; however, McLanahan can train operators in the preparation and use of flocculants, as well as general Thickener operation.

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Paste Thickening Optimizes Tailings Disposal and Water ...

Aug 03, 2016· Mine tailings disposal, and its impact on water usage, is an important concern for any mining company. The challenge today, whether extracting aluminum, zinc, gold or iron ore, is how to dispose of tailings material such that it is contained and stable, while maximizing water reuse and minimizing surface footprint.

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ThickenedandPasteTailingsPipelineSystems: Design Procedure ...

Thickened and Paste Tailings Pipeline System Design Procedure – Part 1, Page 3. The format of the design document varies, but will generally include the sections discussed below. 2.1 General. The function of the system is defined with a basic description of the process. This section also includes: The design battery limits.

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Tailings Thickener Iron Ore - Hawk Measurement

Improving the efficiency of the tailings thickener in an iron ore wet plant Application Problem: The iron ore wet plant is used to remove clay and alumina from the ore after being processed through the primary crusher. The ore is fed through rotating drums and water is used for the removal of the clay. This process water containing clay in

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Tailings.info What are tailings? - Their nature and production

The disposal of tailings is commonly identified as the single most important source of environmental impact for many mining operations (Vick 1990). This is not surprising when considering that the volume of tailings requiring storage can often exceed the in-situ total volume of …

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Working of Thickener,Thickener - YouTube

Mar 27, 2015· Thickener is also named Sluge Thickener-Shan,It is mainly used to dehydrate concentrate and tailings of the ore beneficiation plant..Please contact us for mo...

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Thickeners versus centrifuges a coal tailings technical ...

thickener, the centrifuge generates a centrifugal force, which is from a few hundred to several thousand times greater than the force of gravity. While the capacity of a thickener is a function of its surface area, the capacity of a centrifuge is a function of the liquid surface area multiplied by the ‘g’ force.

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Improving the Efficiency of the Tailings Thickener in Coal ...

Some of the coal types produced had different settling characteristics, which affected the tailings thickener efficiency. Also, the “clarometer” automatic flocculent dosing system that tested settling rates in the incoming feedwell failed from time to time, which meant that the floccing rate changed and the suspended solids increased ...

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