How a Thickener Works - 911 Metallurgist
Mar 17, 2017 ... 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 ... in the countercurrent washing of cyanide slime, for thickening ahead of flotation, for thickening concentrates, and for dewatering tailing to recover the...Read More
Thickening of Mine Waste Slurries - InfoMine
the slurry from the liquid phase. A solid-liquid separation process that is efficient in throughput while yielding large amount of high-grade metal re- quires slurry thickening. Thickened slurries are nonsegregating materials with the bulk of the process water ... mine tailings can be thickened up to. 70% solids. Figure I illustrates...Read More
Accelerate your solid-liquid separation - Alfa Laval
Equipment for solid-liquid separation is an essential part of any ... Alfa Laval decanter centrifuges are the perfect choice for a wide range of solid-liquid ... 3. Leaching / Digestion. Solid-liquid separation. Precipitation. Thickening. Pregnant liquor. Flotation. Tailings. Tailings dam. Concentrate. Concentrate. CRUD. 8.Read More
thickener underflow and tailings - PCM
THICKENER UNDERFLOW AND TAILINGS - MINING AND MINERALS. PERFORMANCES. For further information, please contact your PCM local representative : www.pcm.eu. ADVANTAGES PCM ECOMOINEAUTM IN YOUR PROCESS. • Transfer abrasive fluids with high solids content, high specific gravities. • Transfer...Read More
THICKENED TAILINGS: RHEOLOGICAL AND GEOTECHNICAL ...
Feb 12, 2008 ... Rheology: types of fluid. Conventional tails. Thickened tails. Stress versus strain rate curve is linear and passes through the origin - fluid continues to flow regardless of forces acting on it relation between the shear stress and the shear rate varies, viscosity difficult to define.Read More
Modeling industrial thickener using computational fluid dynamics ...
Thickener is key unit in the operational processes of hydrometallurgy and is used to separate solid from liquid. In this study, population balance models were combined with computational fluid dynamics (CFD) for modeling the tailing thickener. Parameters such as feed flow rate, flocculant dosage, inlet solid percent and...Read More
Tailings - Wikipedia
Tailings, also called mine dumps, culm dumps, slimes, tails, refuse, leach residue or slickens, terra-cone (terrikon), are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore. Tailings are distinct from overburden, which is the waste rock or other material...Read More
Tailings Central Thickened Discharge; challenges ... - SRK Consulting
Aug 2, 2016 ... The beach slope was estimated from non-Newtonian fluid mechanics principles. The methodology adopted was based on current research on thickened tailings and formulated using laboratory test results and slurry properties such as solids concentration, rheology and number of discharge outlets or...Read More
Settling characteristics of coal preparation plant fine tailings using ...
Jun 7, 2017 ... The objective of solid-liquid separation in thickeners in coal preparation plants is to obtain both a clear supernatant liquid with a low turbidity for reuse and a dense slurry. It is important for the smooth operation of the plant to produce good-quality recirculation water. In this study, settling characteristics of...Read More
Tailings.info Thickened Tailings Storage - A discussion
Thickened tailings disposal. ... Thickened tailings, as the name suggests, involves the mechanical process of dewatering low solids concentrated slurry (Fourie 2003). ... Little or no solid/liquid separation results in less oxygen ingress which will reduce oxidation and thus the generation of acid from sulphur bearing tailings...Read More
High Density Tailings Solid/Liquid Separation – WWL Water, Waste ...
offer-solid-liquid-separation. With a strong focus on innovation and research, so as to optimise engineering in terms economics and the environment, WWL work with vendors and other specialists to provide services in regard to: Thickener sizing; Filtration assessment; Vibratory dewatering screen specification; Cyclones...Read More
How and Why to Thicken Liquids :: Nationwide Children's Hospital
How and Why to Thicken Liquids. Some children have trouble swallowing. This is called dysphagia (dis FAY geh ah). Children with dysphagia need to have their food and drink changed so they can safely eat and drink. If your child has dysphagia, you may need to thicken the liquids he or she drinks. Thickened liquids move...Read More
Tailings - Outotec
ABSTRACT. Thickeners are utilised in coal washing for the purpose of solid / liquid separation (dewatering). Thickeners separate an incoming feed slurry (i.e. water with solid particles of either product or tailings material) into two distinct streams; one consisting of clarified water (overflow) and the second stream being a...Read More
Tailing Thickener, Tailing Thickener Suppliers and Manufacturers at ...
Alibaba.com offers 664 tailing thickener products. About 58% of these are mining thickener, 2% are water treatment chemicals, and 2% are paper chemicals. A wide variety of tailing thickener options are available to you, such as free samples, paid samples.Read More
Conventional Thickeners - Engineering Aspects in Solid Liquid ...
Historically thickeners were introduced to the mining industry in 1905 when the beneficiation of ores by froth flotation was invented in Australia. In 1964 there was a project to reprocess the huge piles of tailings that accumulated over the years and recover the remaining copper . At that time I was employed by Eimco in Salt...Read More
Application and Maintenance of the Thickener in Mineral Processing ...
Dec 27, 2017 ... Thickener belongs to dehydration equipment, commonly used for the thickening of ore concentrate and the dewatering of the tailings before filtration, as well as the thickening and purification of a liquid containing solid particles in the chemical industry, building materials, and water source &sewage...Read More
WP 4 - Tailsafe.com
Thickened Tailings. Report of Workpackage 4.2 of the RTD project. Sustainable Improvement in Safety of Tailings Facilities (TAILSAFE) funded by the ..... a part of the liquid fraction is returned to the concentration process for reuse. ... can be improved significantly by thickening tailings, because the thickener overflow is re-.Read More
Thickeners versus centrifuges – a coal tailings technical comparison
Unit area per tonne per day is the common sizing approach, however, it is not uncommon for coal tailings thickeners to be sized on the rise rate of released water. The solids settling velocity has to be greater than the rise rate, or else the solid liquid separation will not occur. Clarifiers, which focus on the overflow liquid clarity...Read More
Solid–Liquid Separation of Clay Tailings - Cambridge University Press
Aug 30, 2017 ... Importantly, thickening at any significant scale requires the implementation of continuous operation. The high volumetric throughputs and low feed solids concentrations typical within the minerals industry leads to solid–liquid separation being achieved predominantly via gravity thickening. The main...Read More
Solid Liquid Separation : BASF SE - Mining Solutions
BASF's Global Mining Solutions business offers a diverse range of mineral processing chemicals and technologies for grinding, solid-liquid separation, hydrometallurgy, tailings managment, flotation and materials handling. As an innovative partner we offer considerably more than just high-value products. Find out more...Read More
Delivering millions in value with the first 3D thickener model - CSIRO
Mar 23, 2017 ... Thickeners suffer from limited throughput, poor solid-liquid separation, operational difficulties and high consumption of expensive flocculants. In tailings applications they frequently fail to deliver the desired concentration of solids, leading to the waste of water and the need for excessively large tailings...Read More
Separating Liquids from Solids With Thickeners – Articles for Small ...
Jan 3, 2018 ... Thickeners are generally used in metallurgical field with the purpose of thickening prior to agitation, filtration, in the countercurrent washing of cyanide slime, and more thickening ahead of floatation, for dewatering tailing to recover the water for reuse in the mill and...Read More
from the conventional thickener to the deep cone for ... - ResearchGate
Thickeners are solid-liquid separation equipment in which a slurry forming a .... One of the keys to produce paste or thickened tailings from a thickener is to ensure that the design of the feed hood and the ... extremely slow, which may be motivated only 95% filled with clarified liquid, and a small layer of settled solids at the...Read More
assessment of thickening tailings as a tool for ... - AEIPRO
ASSESSMENT OF THICKENING TAILINGS AS A TOOL FOR. ENVIRONMENTAL IMPROVEMENT. Rocío Luiña Fernández. Francisco Ortega Fernández. Gemma Martínez Huerta. David Pecharromán Clemente. Universidad de Oviedo. Abstract. Mining extraction by flotation generates huge amounts of liquid waste stored in...Read More
Thickening of Mature Fine Oil Sands Tailings - Scholarship@Western
ii. ABSTRACT. The mature fine oil sands tailings (MFT) remain suspended in tailings disposal pond for ... significant at 95% confidence level based on F-test and t-test results, respectively. Keywords: electrophoresis, thickening, sedimentation, coagulation, mature fine oil sands tailings. ...... density of MFT fluids [kg/m. 3. ] V:.Read More
Strategies for Instrumentation and Control of Thickeners and Other ...
Strategies for Instrumentation and Control of Thickeners and Other Solid-Liquid Separation. Circuits ... Some of the process variables that are commonly monitored on a thickener are torque, rake height, bed level .... The thickener supervisor monitors the performance of the thickeners in the tailings dewatering circuit and...Read More
Thickeners + Rheology Guide - Scott Bader
Newtonian Fluid: Newtonian Fluids – examples include, water, certain oils and dilute resin solutions. The viscosity of a Newtonian fluid is independent of shear rate or ..... tails. HASE in water. Rheology and Efficiency. The graph below indicates the relative rheological behaviour of the Scott Bader range of Texicryl HASE.Read More
McClean Lake - AREVA Resources Canada Inc.
The slurry is fed through a series of thickeners where the solids are separated from the liquids. The waste solids, containing a very small amount of soluble uranium, are sent to the Tailings Neutralization circuit. Clarification removes suspended solids from the uranium solution after CCD, using a clarifier and sand filters.Read More
Mining Water Treatment Chemicals | Hawkins Inc.
BASF's Magnasol® flocculants and coagulants can be supplied as liquids or in a solid block form and are ideally suited for remote locations where electricity is not ... Tailings thickeners generate high-density underflows with high yield stress, which are often pumped long distances to a final tailings impoundment area.Read More
Adam Darby: Tailings Management | Golder
Jan 23, 2017 ... In his presentation at the 1st Congress on Solid/Liquid Separation and Tailings Treatment held on October 13 and 14 at Hotel Enjoy, in Viña del Mar, Adam ... In thickened or filtered systems, the entire system is important—from thickener to dam—requiring a larger degree of management and design than a...Read More
Thickened liquids | definition of thickened liquids by Medical dictionary
Looking for online definition of thickened liquids in the Medical Dictionary? thickened liquids explanation free. What is thickened liquids? Meaning of thickened liquids medical term. What does thickened liquids mean?Read More
Latex (slip casting) and neoprene tail tutorial - MerNetwork
Dec 5, 2012 ... One can use slip casting latex and latex thicker to thicken to the same consistency of ALEX for use in making realistic tails, following the technique ..... I also found some "mold builder" latex at my local Hobby Lobby that is working much better than thickening the liquid latex with the uber expensive thickener.Read More
dryfloc - SNF Holding Company
specific goals of water management, tails management and paste thickening technology. These new products are complementary to our conventional range of copolymers. ° DRYFLOC Dis a liquid that can be used as an efficient rheology modifier in combination with a conventional flocculant for thickening applications.Read More
Thickening Resource Book - Maintained by Rudi Steyn
from a liquid stream by gravity settling. The primary purpose of thickening is to increase the solids concentration of the feed stream. Gravity settling is aided by addition of chemicals called flocculants. The inlet stream going to a thickener generally is called 'feed' or 'influent'. Overflow from the unit may be called. 'overflow'...Read More
Characterization and flocculation studies of fine coal tailings - SAIMM
Therefore, to significantly improve the dewatering performance, it is important to understand the characteristics of coal, the chemistry of the carrier liquid, the impurities present, and their influences on the solids content. Industrial fine coal dewatering circuits contain thickeners, cyclones, screens, filters, centrifuges etc., either...Read More
6 Current state of fine mineral tailings treatment - a critical review on ...
The mining industry produces fluid fine mineral tailings on the order of millions of tonnes each year, with billions of ... clays in fluid fine mineral tailings prevent efficient solid-liquid separation and timely re-use of valuable process .... prevalent practices of fluid mineral fine tailings densification (thickening) and dewatering,...Read More
Conventional Disposal vs. Thickened Tailings Disposal
Tailings Management Systems(TTMS). An alternative to traditional tailings disposal methods.Read More
Hawk Measurement Systems: Level Measurement & Liquid Level ...
Hawk Measurement develops and manufactures level measurement, positioning and flow solutions and provides reliable solutions to industries like mining, water, power, chemical.Read More
TSRU Tailings Pilot-Scale Thickening and ... - Barr Engineering
TSRU tailings exhibit unique geotechnical properties and depositional behaviour as compared to other fluid fine tailings types. Preliminary research indicated a potential for thickening TSRU tailings, which can result in both heat recovery and creation of a paste-like material that can be safely and economically deposited to.Read More
KROHNE successfully applies non-radiometric density solution to ...
Sep 21, 2011 ... KROHNE successfully applies an OPTIMASS Coriolis mass flowmeter to a tailings thickener underflow line to provide a non-radiometric density solution for an ... The straight-tube OPTIMASS 7000 series Coriolis mass flowmeters have been successfully used on abrasive fluids such as slurries (minerals...Read More