Continuous thickeners have undergone several modifications that have resulted from the development of a wide variety of organic polymeric flocculants. As a result, there are now two basic types of continuous thickeners: Conventional and High-rate. Conventional Thickeners These thickeners differ in the way they are built.
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High-rate thickeners Ultra-high rate Paste thickeners Maximum pumpable underflow Decreased area Slow settling Large area Better settling Smaller area, improved underflow density Fig. 1. Evolution process of paste thickener [19]. 350 Int. J. Miner. Metall. Mater., Vol. 28, No. 3, Mar. 2021
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To add to this line, McLanahan is now offering ultra-dense thickeners such as the Deep Cone Thickener. McLanahan's High-Rate and High-Density Thickeners are simple in design and operation, but offer a multitude of benefits for producers. Although both sized based on hindered settling velocity, High-Rate Thickeners feature lower side walls and ...
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McLanahan offers a range of thickener types, including High-Rate, Ultra Rakeless, High-Density and ... High-Rate Thickeners are used by the aggregate and mining industries, as well as environmental contractors, to recover approximately 85% of water for reuse. This high-level of water recovery keeps water consumption at sustainable levels, as ...
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The effective collision of ultrafine tailings particles in suspension with … Expand. 30. 1 Excerpt; ... and the water is recovered in downstream operations in the high rate thickener (HRT) and vacuum belt filtration (VBF). Clean coal ... Solid flux density determination by ultra-flocculation. F. Concha N. Rulyov J. Laskowski. Engineering ...
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PHOENIX has long been a market leader in separation, classification, thickening, and dewatering equipment for the aggregate industry. One recent innovation is the AltaFlo Ultra High Rate Thickener, featuring: No moving parts. Minimal space requirements. High underflow solids (as high as 50-60% in mining applications).
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Thickener design provides water clarification while thickening slurry from wash plants; High underflow solids for reduced or eliminated slurry pond storage area; Low installed …
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Thickener design provides water clarification while thickening slurry from wash plants; High underflow solids for reduced or eliminated slurry pond storage area; …
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Table 1 Pre-feasibility and feasibility engineering study thickener design parameters Parameter Unit Value Feed - Tailings Thickener type - High Rate Numbers of thickeners - 1 Thickener diameter m 100 Nominal tailings throughput t/d 54,000 % +25 % t/d 67,500 % 57 % Design factor Design tailings throughput Nominal underflow solids concentration ...
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The PHOENIX AltaFlo™ Thickener is a rake-less thickener that provides ultra high-rate mixing, flocculation, and internal dilution followed by clarification and positive sludge collection and removal in a single tank. ... For more detailed information on the AltaFlo™ Ultra High-Rate Thickeners / Clarifiers or to discuss an on-site field ...
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AltaFlo ultra high-rate thickeners perform well as tailings thickeners, in CCD circuits, as concentrate thickeners, and in leaching circuits. The low CAPEX economics of an AltaFlo also make it a perfect solution for …
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The concept of an ideal suspension and ideal thickener was presented for the first time by Shannon and Tory and ... High-density and paste thickeners are similar to conventional or high rate thickeners, but with steeper cones and much higher cylindrical tanks. The additional height produces more pressure on the sediment at the bottom of …
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resulting in better thickener operability and improved response to process changes. It also enables improved overflow clarity with higher underflow density. Flocculant usage is one of the highest running costs for a thickener. Reactorwell™ features are proven to lower thickener running costs. The improved Autodil™
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On the other hand, very low flux rates could result in a thickener with a very high area. Therefore, non-segregable niobium ore tailings could be achieved with thickeners from a 0.5 (t/h)/m 2 flux rate and a 0.5 m bed height, which generated an underflow with a 66.8% solids content, a yield stress higher than 40 Pa, a 67.1% slump, …
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Description. The High-Rate thickeners became popular in the mid 1980's and are relatively newcomers to the sedimentation line of equipment. As already discussed previously Thickeners are a major component in a …
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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 …
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High Rate Thickeners. 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.
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The thickener was applied at various concentrations (0, 4, 8, or 12 g/l) in the pretreatment bath to determine the effect of cationization on the optimal level of thickener. The concentrations of soda ash and urea in the pre-treatment were 40 and 100 g/l respectively.The fabrics, untreated cotton and cotton cationized with 100 g/l reactant, …
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The PHOENIX AltaFlo™ Thickener is a rake-less thickener that provides ultra high-rate mixing, flocculation, and internal dilution followed by clarification and positive sludge collection and removal in a single tank. The Thickener's unique internal geometry, a deep sidewall and steep conical bottom provides underflow concentration ...
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The High rate thickener are equipped with a Sedicontrol system that monitors continuously the flocculation and adapt the polyelectrolyte dosing according to the right settling speed. In this way the thickener plant is able to guarantee automatically constant settling performance. High rate Thickener in mine. The feed well of the Cogede High ...
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HRT-S is a robust pre-engineered high rate thickening solution that is delivered efficiently, is easy to operate and service. Modular and ready to sell with a defined set of features and selected options to choose from. Pre-engineered designs. Consistently enables accelerated project deliveries. Pre-determined transport volumes and packing plans.
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World's largest and highest capacity bridge and column mounted thickeners. High-rate and standard thickeners. High-density thickeners. Deep cone paste thickeners. …
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The clarifier is a modified Ultra High-Rate Thickener, which has been modified to include a screen deck in the clear water zone of the thickener. Floating filter beads are located below the screen, where they act with the flocculant to filter the overflow from the thickener. The key to the successful long-term operation of the clarifier lies ...
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High Rate Thickener (ENG) - Free download as PDF File (.pdf), Text File (.txt) or read online for free.
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Key Benefits. Maximum capacity. Improved control. Increased underflow density. Lower flocculant dose. Better slimes management. Stay updated on your industry. Improve your …
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The upper section of a Paste Thickener is identical to a High-Rate Thickener and relies on achieving optimum flocculation conditions in the proprietary feed system. The optimum feedwell solids are commonly determined by testwork. Care needs to be taken to ensure exit velocities from the feedwell do not cause excessive shear and fracturing of …
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A hydrophobically associating copolymer (HPAOS) with synergistic interactions between the monomers, 2-acrylamido-2-methylpropanesulfonic acid, octadecyl methacrylate, octadecyldimethylallyl ammonium chloride, and acrylamide was synthesized by free radical polymerization, followed by hydrolysis. Fourier transform infrared …
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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 than a ...
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Ultra High Rate Thickeners – AltaFlo™ ... 502-499-6198; HiFlo™ High Rate Thickeners / Clarifiers. PHOENIX HiFlo™ High Rate Thickeners clarify wash plant effluent water while thickening the slurry to 40-45% solids, greatly reducing the underflow slurry rate to the slurry pond. PHOENIX Thickeners use sedimentation technology to maximize ...
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The PHOENIX AltaFloTM Thickener is a rake-less thickener that provides ultra high-rate mixing, flocculation and internal dilution followed by clarification and positive sludge …
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Applications. Rake-less design with no moving parts or wear items. Internal automatic dilution circuit. Small footprint. Simple design. The WesTech AltaFlo High-Rate …
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