Thickeners are generally high-molecular-weight polypropylene or its copolymer. The common polymer thickeners are divided into emulsions and powders on the basis of morphology [16].
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, …
For 40 years PHOENIX Process Equipment has been providing custom system solutions and equipment for liquid/solid separation in aggregate, mining and other minerals production processing. The PHOENIX AltaFlo™ Thickener is a rake-less thickener that provides ultra high-rate mixing, flocculation, and internal dilution followed by clarification and positive …
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 dewatering non-profit streams. The …
SpinTek provides deep-cone pinned-bed clarifiers(PBC) for the generation of high-quality overflows and/or high-density underflows. Units offer a combined ultra-high rate thickener and pin floating bed media filter in one vessel and …
percentage points higher than underflow from a high-rate thickener. The WesTech Deep BedTM paste thickener is the latest advancement in the evolution of this style of thickener. To be able to consistently dewater the tailings slurry to a non-settling and non-segregating suspension, WesTech Deep BedTM paste thickener design includes:
A high-rate thickener is a type of solid-liquid separation equipment used in various industries, including mining, mineral processing, and wastewater treatment. It is designed to efficiently separate solids from liquids by settling the solids to the bottom of the vessel while allowing the clarified liquid (overflow) to be removed from the top.
High Rate Thickeners High rate thickeners are designed specifically to maximise the flocculation efficiency of flocculants. They differ from conventional thickeners in feed well design, size and control. Unlike conventional thickeners, high rate thickeners must use flocculants. The basic design of a high rate thickener is below.
There are two basic types of high rate thickener units: 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 …
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Conventional or high-rate type; Rakeless ultra-high-rate type; High-density type; Deep-cone type; To illustrate the differences between these thickener types. Figure 18.5 depicts underflow produced by the thickener compared with the relative yield stress of the material. High-rate thickeners produce the lowest density and yield stress (<20 Pa).
Ultra High Rate Thickener The AltaFlo is a rakeless thickener that uses rapid . dewatering in the hindered settling zone to achieve a very high settling rate. The AltaFlo typically operates at twice the settling rate of a high rate thickener. The geometry of the unit provides for a deep compaction
High Rate Thickener (ENG) - Free download as PDF File (.pdf), Text File (.txt) or read online for free. McNally Sayaji Engineering Limited is a leading manufacturer of thickeners and clarifiers for mineral processing and other industrial …
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.
Weighted fracturing fluid was considered to be one of the key technologies to deal with the challenge of abnormally high pressure and ultra-high temperature reservoir stimulation in the case of existing fracturing equipment. In this work, a thickener polymer Pt-Fb that meets the requirements of fracturing fluid weighting by HCOONa was synthesized.
Beneficiation of coal is a water intensive process, and the water is recovered in downstream operations in the high rate thickener (HRT) and vacuum belt filtration (VBF). Clean coal particles entering the HRT have an inherent tendency to enter the overflow because they are extremely fine and hydrophobic. Hence, flocculants (polymers) are used to floc the ultrafine …
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
Liquid provides the necessary rheological and viscoelastic system structure for the suspension of sand; after adding the crosslinking agent, the polymer with linear structure can become a kind of polymer ... contains a newly prepared ultra-high temperature thickener GAHT, high temperature resistant zirconium crosslinking agent XL2, and high ...
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 …
It was shown by Rulyov (1999) and Rulyov et al. (2000) that the mixing time in flocculation can be reduced down from minutes to 5–6 s by the appropriate hydrodynamic treatment of the suspension in a shear vessel at high shear rate γ ˙.This treatment, termed "ultra-flocculation" (Rulyov, 2004, Rulyov et al., 2005a, Rulyov et al., 2005b), ensures that, not only …
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 ...
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 ...
The main types of Thickeners include: High-Rate Thickeners; Ultra Rakeless Thickeners; High-Density Thickeners; Paste Thickeners; High-Rate Thickeners. High-Rate Thickeners are used to achieve moderate underflow density and good overflow clarity with low chemical dosage. They also offer high liquid recovery.
Ultra-flocculation of suspension reduces the flocculation time span 100 times and improves flocculation efficiency. This is achievable through short-term treatment of suspension in highly nonuniform hydrodynamic field generated in a cylindrical flocculator in the form of high-rate turbulent motion.
AltaFlo Ultra High-Rate Thickeners The AltaFlo ultra high-rate thickener is a rakeless thickener providing mixing, flocculation, and internal dilution. The AltaFlo also provides clarification and positive sludge collection and removal in a single tank. The AltaFlo typically operates at twice the settling rate of a high-rate thickener.
The AltaFlo ultra high-rate thickener is a rakeless thickener providing mixing, flocculation, and internal dilution. The AltaFlo also provides . clarification and positive sludge collection and removal in a single tank. The AltaFlo typically operates at twice the settling rate of a
4.4. Dissolution Rate of the Thickener. For the suspension, the dissolution was based on the following steps: In a 800 mL beaker, 4.0 g of SACM was quickly injected into 396 g of 100,000 mg/L simulated brine to obtain a suspension diluent with a thickener concentration of 0.4 wt% under gentle stirring (300 rpm).
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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 plant layout and occupy large spaces which may be saved by introducing high-rate machines. Furthermore, they are normally positioned far away from the …
To overcome the problems of long dissolution time and high investment in surface facilities of powder thickeners in hydraulic fracturing, a novel suspension of a thickener as a fracturing fluid ...
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 ...
High-rate thickeners are designed to provide roughly 12 times the throughput of conventional machines of similar size. The key features for high-capacity thickeners are the feedwell design …
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, all in …