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Footprint can become a significant CAPEX consideration when excavation costs are elevated. To illustrate, we will assume our high-rate thickeners in Table 8 cost $1 million each. Therefore, all ...
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The thickener options for high tonnage application are either multiple deep cone thickeners or a single high density thickener. This plant target low-yield stress underflow would not require the higher yield stress and underflow solids produced by a deep cone type paste thickener. Therefore two 45m-diameter WesTech HiDensity™ …
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Unlike conventional thickeners, high rate thickeners must use flocculants. The basic design of a high rate thickener is below. High rate thickener feed wells are designed to disperse flocculants thoroughly into the feed end to admit the flocculated slurry into the settling zone of the thickener without destruction of the newly formed floccules.
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Like the High Rate thickener, ... flocculant dosage and flu x rate on thickener underflow and . ... Shahrebabak Copper Complex Deep Cone Thickeners." IMPC, 20 12, Paper 98.
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Hi-Rate Thickener design elements include the following: Mechanical lift mechanism drive head complete with planetary gearbox drive. Two full-radius rake arms and two half-radius rake arms, complete with a cone …
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High Flow Clarifiers/Thickeners. Our uniquely designed clarifier/thickener provides maximum underflow density capability of up to 70% w/w solids content, and maximum flow capacity of up to 7000 GPM. Our design effectively separates the settling, dewatering and compaction functional volumes effectively eliminating the high torque conditions ...
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Design a clarifier-thickener for the pulp and paper wastewater using the testing data described in Figures 7-84 through 7-95 to accommodate an influent design flow of 10 million gallons per day (MGD) and to achieve 60% suspended solids removal at 3.5°C with an underflow concentration of 10,000 mg/L. Influent suspended solids (the raw ...
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CONVENTIONAL AND HIGH-RATE THICKENERS. CONVENTIONAL THICKENERS. The objective of a thickener is to separate low-density slurries into a relatively clear liquid …
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Gravity thickeners generally retain 80−90% of the solids in the thickened product stream, depending on the sludge characteristics and the efficiency of the preceding conditioning stage. The sludge characteristics also govern the solids loading rate (SLR), which is the rate in kg/d at which the sludge dry solids enter the process per unit …
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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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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 comparable ...
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EIMCO-K.C.P. High Rate Thickeners are designed to maximize the flocculation efficiency, self-dilution and settling rates. EIMCO-K.C.P. High rate thickeners are designed to provide high underflow concentration with smaller diameter. The high velocity feed is split to two compartments with opposite tangential inlets that are positioned in two ...
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The hierarchical cone thickener is a critical device for paste filling in the mining industry ( Fang et al., 2022, Huan et al., 2019, Tan et al., 2015 ). The current mining and paste-filling industry still faces some thorny challenges. For example, the underflow concentration of the cone thickener system (CTS) directly determines the quality of ...
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a High Rate Thickener. As one can see in Figure 3, the continuous simulation achieved an underflow suspended solids concentration of 59 wt% when the mud residence time is between 4 and 6 hours. This residence time is normally associated with High Density thickeners (High Rate thickeners have residence times less than this).
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In high rate thickener (HRT) designs the rise rate or solids loading will dictate the required tank diameter for any given throughput. In high compression (HCT) …
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The PHOENIX AltaFlo™ Ultra High-Rate Thickener uses unique internal geometry, a deep sidewall and steep conical bottom to achieve underflow concentration comparable or better than a traditional raked thickener. The thickener uses internal dilution to help optimize flocculation and a deep free settling zone and conical
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High-rate thickener for coal, 20 m in diameter. Phosphoric acid clarifiers, 30 m in diameter. Latest sedimentation technology with unique design. ANDRITZ makes use of the latest …
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Compaction Zone. Solids in contact with each other trapping interstitial water. The PHOENIX AltaFloTM Ultra High-Rate Thickener uses unique internal geometry, a deep …
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Underflow from a High-Rate Thickener will have a yield stress of 10-30 Pa and look like tomato ketchup, while underflow from a High-Density Thickener will have a yield stress of 30-100 Pa and resemble molasses. The Paste Thickener underflow will have a yield stress of 200-250 Pa and look like toothpaste. How to select a Thickener
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To produce high concentration underflow, the yield stress of underflow in DCT is much higher than conventional high-rate thickeners, resulting in a much higher rake torque ... H. Wang, S. Yang, G. Yao, and X. Liu, "Mechanical model of scraper rake torque in deep-cone thickener," Journal of Central South University, vol. 43, pp. 1469 ...
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High-rate thickeners also have a smaller tank volume, so less volume is required for storing the product if the tank has to be emptied. Because of this, high-rate thickeners can start up and shut down faster than conventional thickeners. However, due to their smaller size, high-rate thickeners require faster settling rates.
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Wa Ultra Hirate thickeners operating in counterflow are capable of producing an underflow with maximum solids concentration. These units have a smaller diameter …
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Consistent and high-density underflow. Careful cone scraper design provides optimal "live" underflow pump feed. Feed Dilution and Froth Removal (FRAD). We have …
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high-rate thickeners, ... ical model of scraper rake torque in deep-cone thickener, ... rakes and pickets are the essential design elements for high-concentration underflow [19,20].
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The Conventional Thickener. Description. 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. Likewise, thickeners are often used for storage to facilitate the ...
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Monitoring of the thickener performance for a period of one month in the plant indicated that an average feed rate of 25t/h (dry solids) with solids concentration of 10% could be thickened to an ...
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There are two basic types of high rate thickener units: Lamina or tube settlers and solids recirculation units Lamina Thickeners They contain space-cutting baffles that intercept settling paths at many levels. Solids settle out onto the baffles and are removed from suspension after settling only a short distance. Where and to the extent …
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The spiral design of our thickener rake arm assembly offers a number of unique benefits that traditional rake arms cannot provide. By delivering a consistent, low-torque action in …
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High-density thickeners By adding depth and torque to a high-rate design, high-density thickeners improve underflow densities at a substantially lower cost than deep cone …
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A number of new copper plants are utilizing high density tailings thickeners. These improve water recovery and minimize tailings impoundment requirements. High density thickeners can typically achieve 5–10 wt% higher underflow solids compared to a high rate thickener, achieving densities that can still be moved with centrifugal pumps.
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By comparing the features and key parameters in Table 1, it indicates that the current mainstream DCT in mining operations commonly have moderated diameters exceeding 10 meters, even over 50 m, and the height of DCT is commonly larger than 20 m, which is generally higher than high-rate thickeners. The underflow concentration and …
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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 the water recovery rate, providing clarified overflow water that can be recycled and reused in the process.
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Filtaquip Conventional High Rake Thickeners, ideal for large water flows, have a limited height and a large surface area. Equipped with a peripheral scraper …
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High-density thickeners By adding depth and torque to a high-rate design, high-density thickeners improve underflow densities at a substantially lower cost than deep cone thickeners. Paste/high-density thickeners, ultra-high-rate clarifier-thickeners With more installations in more applications than all of our competitors combined, we are the ...
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thickener deflector cone scraper manufacturer consists of a cylindrical or truncated cone drum, extending across the full width of a channel read more; [chat Online] high rate thickener underflow cone scraper. Thickeners 911 Metallurgist Jun 1, 2016 Thickeners, equipped with the patented spiral scrapers and angle rakes are a High rates usually ...
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HIGH-RATE THICKENING, PURE OVERFLOW CLARITY AND HIGH UNDERFLOW DENSITY . FEED PIPE CULMINATING IN !BULLHORNS" FOR REDUCED DISCHARGE VELOCITY ... y the collector cone! *oagulation of fines now ta'es. ... 7/18/2019 Magra High-Rate Thickener Presentation 2011.
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