Continuous thickening simulations by computing PDEs at various flocculant dosages were conducted to analyze the effect of flocculant dosage on the underflow concentration in the ICT. The compression effect and cone shape at the thickener bottom were not considered in the ICT, and the concave shape of a solid …
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The Deep Cone Thickener maximises pulp concentration while also producing non-segregating underflow slurry with a paste consistency. We have more than a century of experience in sedimentation and flocculation technology and we have installations in more applications across the world than any of our competitors.
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1. Optimized Feedwell Design: The feedwell is critical for even distribution of the incoming slurry. Consider optimizing the design to ensure proper mixing and distribution of flocculants and feed ...
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ANDRITZ EcoSET is a cost-efficient thickener range that handles light- to medium-duty solid-liquid separation. With its plug-and-play control system, the ANDRITZ EcoSET …
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Laboratory testing with a high rate thickener has shown the importance of feed solids control to thickener and flocculant performance (Table 4). In the preoxidation as well as CCD thickeners, testing has demonstrated that an optimum feed solids level can be attained which will maximize thickener performance while minimizing flocculant …
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1. Pilot Scale Deep Cone Thickener The height of the pilot thickener was 2 m and the diameter was 1.375 m. More details are shown in Fig. 1 and Table 1. Feed is in-jected in a feedwell at the top of the tank. Overflow is collected by a deposition pool. The schematic of the pilot thickener flow cycle is shown in Fig. 2. Fig. 1. Pilot scale deep ...
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The TPH Deep Cone Thickener is perfect for lower. flow applications and portable wash plants. It achieves high density underflow solids and has an integrated cyclone support structure. This system automatically discharges the high-density underflow. solids through an automated pneumatic pinch valve system. Flow capacity up to 2500 GPM in a ...
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Deep cone thickeners, also known as deep bed or deep cone clarifiers, are suitable for applications that require both high underflow density and efficient clarification of the supernatant liquid. ... Dilution control mechanisms, such as flow control valves or pumps, should be employed to achieve the desired feed dilution rate. 2. Flocculant ...
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The utility model discloses a flocculating agent dosing system of a mining deep cone thickener, which comprises a flocculating agent box body and a storage box communicated with the side part of the flocculating agent box body, wherein the storage box is used for conveying mixed flocculating agent to the deep cone thickener for flocculation through …
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Project Summary. Built to replace an older sand washing system this plant features the latest washing innovations for washing sand and gravel. Designed for Keohane Readymix in Cork, Ireland, the system features an H30 Feeder, an Aggresand 206, an Aggrescrub 150, an FDU 3000 Floc Dosing Unit and DC 220 Deep Cone Thickener Tank.An as dug …
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Feedwells and flocculant dosing control have a significant influence on thickener performance. Flocculation is controlled by varying the flocculant pump speed to achieve a consistent flocculant dosage …
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paste thickening. Our Deep Cone® thickeners produce underflow solids with the highest solids concentration of any thickener on the market. — The deep tank design …
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easy to thicken the whole-tailings slurry to paste [4]. Nowadays, deep cone thickener (DCT) has been developed for the whole-tailings thickening and flocculant is used for the whole-tailings flocculation settling. It is necessary to study the flocculation settling and thickening performance of whole- tailings particles in DCT [5].
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The original concept of the deep cone thickener was developed in the 1960's using a steep angled cone and thickener bed to increase underflow density. Over the years, this thickening technology has evolved to produce a non-settling solids suspension with underflow concentrations much higher than what is produced with conventional or high …
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The flocculant flow rate is then calculated using ratio control based on Eq. (3), where the flocculant addition is based on the feed slurry properties. The PI control parameters are estimated using the Broïda method and validated based on the Ziegler–Nichols method [38]. 3.4. Control architecture
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Deep Cone Water Clarifier, or decanter clarifiers, are a type of vertical thickener used in the clarifier wastewater treatment process. Unlike the filtration carried out by the filter press, the clarification is a continuous process that separates water from the solid particles suspended into it.
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Package thickener control system s are being ... Shahrebabak Copper Complex Deep Cone Thickeners ... I. 2013. " Advances in Thickener Flocculant D elivery". MetPlant 2013, AusIMM. ...
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DOI: 10.1016/j.jece.2024.112168 Corpus ID: 267589855; Flocculation, dewatering and sedimentation behaviour of mine backfill slurry in deep cone thickener (DCT) @article{Wang2024FlocculationDA, title={Flocculation, dewatering and sedimentation behaviour of mine backfill slurry in deep cone thickener (DCT)}, author={Leiming Wang …
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A novel thickening equipment known as a wide neck thickener (WNT) was designed to solve the problem of depending only on gravity settlement of the thickener. The computational fluid dynamics method with the Reynolds stress and the volume of fluid models and the particle image velocimetry experimental method were both applied to …
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Deep cone thickener is a type of gravity settling equipment for strengthening flocculation and hydrostatic pressure compression. It was invented by the British National Coal Board. Its upper part is cylindrical and its lower part is conic with a small cone angle and a deep thickener tank. The structure is shown in Fig.1. In order to improve the ...
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A Deep Cone Silo is both a Water Clarifier and a Mud Thickener in one.. They are based on the principle of static decantation with no moving parts and boasting a minimal footprint. The head pressure created by the Deep Cone and cylinder section allows the flocculated slurry to reach a higher percentage of solids (ie thicker mud) than that of a standard rake …
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Deep cone thickener is a type of gravity settling equipment for strengthening flocculation and hydrostatic pressure compression. It was invented by the British …
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A Short History of Deep Cone Thickener Development F.R. brunn Dorr-Oliver Eimco, USA ABSTRACT Deep cone type thickeners were first conceptualised in the 1960s. Work was done to develop the concept by the British National Coal Board, but the goals at that time were never achieved. Developments in flocculant
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Deep cone thickeners were originally developed to take advanta ge of advances in flocculant technology. Good flocculation is a key to the successful operation of a DCT and conditions which promote ...
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The deep cone thickener is circular, suspended solids settle down into bottom conical sludge tank by gravity, clear water flow away from overflow port around the upper tank, which is also called paste thickener. The port of the overflow is equipped with filter and baffle, which improve the water quality that poured out.
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LZZG thickener is a thickener tank that based on gravity and sedimentation which makes solidseparate from liquid well. The concentration of pulp waste water could be enhanced from 2% ~ 15% to …
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The deep cone thickener is the key equipment in the paste disposal technology. The height to diameter ratio is an important factor which influences the thickener's underflow concentration.
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The waste water is pumped into a deep cone thickener with flocculent added along the way, thanks to the flocculent dosing unit present within the central control room. Within the deep cone thickener, the waste particles of silt and clay combine to create a larger heavier particle that sinks towards the base of the cone. The flocculent ...
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• 1 x Manual gate valve DN100 (4") • 1 x Auto pneumatic Knife Gate valve DN100 (4") ... (1") • Dozing System, Electrical control Panel with Automation • Ease of operation by Automation System • Flexibility of operation by having high Sludge holding capacity. ... deep cone thickener DC100 with Floc Dosing Unit 1800L. 6 7 deep ...
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We investigated the axial and radial solids concentration distribution at discontinuous state in a pilot deep cone thickener as a function of bed height and residence time. The feed flux of lead/zinc tailings was 0.254 t·h−1· m−2 with a flocculant (high molecular weight anionic polyacrylamide) dose of 20 g/t. The thickened solids bed …
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The settling rate and clarity can normally be improved by using flocculant. SLUDGE-WATER INTERFACE LEVEL DETECTOR. The lower portion of the compaction zone is …
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The invention discloses a kind of methods for improving deep cone thickener underflow density, according to the production actual conditions and operating experience of tailing high concentration storage system, achieve the purpose that promote deep cone thickener underflow density by multiple inspection, multiple control and multinomial adjustment, …
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deep cone thickeners are designed and constructed to give optimum performance and reliability in even the toughest applications. The deep cone provides a smaller …
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Improving process stability is the key to process control. Thickening is, by nature, a slow process with multiple variables influencing the process ... and manipulates the underflow pumping rate and flocculant dosage to maintain a stable process. Information from the thickener feed line – the input flow rate and slurry density – is used ...
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Through three-dimensional numerical simulation on the whole-tailings flocculation and settling in deep-cone thickener using computational fluid dynamics (CFD)-PBM, the distribution of density and ...
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