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Thickener Torque -Rakes & Drive
· Each rake arm is higher at its far end than it is where it joins the drive shaft. This is designed this way to give the bed a slope towards the centre of the thickener. As the rakes are turned by the drive shaft they cause the concentrate that has settled onto the bottom of the thickener to be pulled into the discharge chamber at the centre of ...
Deep Cone Thickeners Deep Cone Paste Thickeners produce underflow solids with a paste consistency and the highest solids concentration of any thickener on the market. Deep Cone Thickeners are state-of-the-art solutions in today''s sedimentation process-es. Traction Thickeners Modification of the centre pier type unit with rake arm
4 x Flowrate 4 x 200 π Riserate
The following is a short cut to designing your own thickener: (a) Size of Thickener As a first stab we can either use the thickener flux (m. 2 /tpd) or the rise rate, depending if solids loading is the dominant (eg. Platinum Tailings) or feed flow rate (e.g. Clarification or low feed solids).
The drive is comprised of TEFC motor and gear box which reduces the high torque speed, and diameter & amount of suspension to be clarified determines the final RPM of the rake arm which ranges from 1 to 10 RPH. CLARIFLOCCULATOR: As the name suggests it is a combination of clarifier and the flocculating zone. ... THICKENER: Thickeners are ...
MinPro Thickening Technologies | Innovation | Foam
SUPAFLO (r) high rate thickener has pioneered and redefi ned thickening and clarifying methods around the world. SUPAFLO(r) thickeners operate in minerals processing, chemical, water treatment, industrial and effluent applications throughout the world.
(PDF) S2.0 S240589631501959X main | Leonel Espinoza ...
The high rate thickener operates continuously with a 95% of Rule based expert systems have been developed for use on availability. High rate thickeners are designed specifically to thickeners since the early days of computerized control maximize the flocculation efficiency of flocculants. They systems, but have been cumbersome for ...
Thickeners and clarifiers Complete range of reliable and ...
High-rate thickeners are designed to provide roughly 12 times ... supports the rotating feedwell and partially supports the rake ... or feed open launder. At the tank perimeter, the full-radius rake arm is supported on and driven by the drive unit (tractor). The drive unit runs steel traction wheels on a steel rail at the edge of the
High-Rate Thickeners | McLanahan
· High-Rate Thickeners, or Clarifiers, recover immediately reusable process water for mineral and aggregate producers, as well as environmental contractors. Thickeners are beneficial in a variety of applications, including areas where water is in short supply or very expensive, re-circulated water is not suitable for reuse in a plant, ponds are located on minable reserves, or ponds must be ...
The Ovivo ® sludge thickener is designed to continuously produce as thick a sludge as possible from streams of sludge previously formed and collected in separate settling basins. Included with the thickener mechanism are Ovivo''s durable heavy-duty drives. The drive is designed to handle the specified torque for 20 years of continuous operation, but we have seen drives still in operation after ...
Paste and thickened tailings : a guide
7.5.2 Boxtruss rake arm 119 7.5.3 Swinglift arm 120 7.5.4 Thickeningor dewateringpickets 120 7.6 THICKENERDRIVETYPES 120 7.6.1 Centredrives 121 7.6.2 Peripheral drives 121 7.7 THICKENERDESIGNTYPES 121 7.7.1 Conventional thickener 121 7.7.2 High-ratethickener 122 xlv. 220.127.116.11 Feedwelldesign 123 18.104.22.168 Dilution systems 123 7.7.3 High-rate ...
· rake classifier mechanism. The rake classifier (Figure 9.18(a)) uses rakes actuated by an eccentric motion, which causes them to dip into the settled material and to move it up the incline for a short distance.The rakes are then withdrawn, and return to the starting-point, where the cycle is repeated. The settled material is thus slowly moved up the incline to the discharge.
conventional thickener center column price
conventional thickener rake drive for sale. conventional thickener rake . conventional thickener rake arm with blade price drive arm or . rake arms 28 carrying Used Thickeners For Sale Machinery and Eimco 80 ft. diameter type B thickener includes thickener mechanism bridge …
Products and Solutions List
Ana-Flo™ Reactor. BioDoc® Trickling Filter Rotary Distributor. BioTreater™ Biological Treatment and Clarification System. ClearLogic® Membrane Bioreactor (MBR) HydroDoc™ Trickling Filter Rotary Distributor. LANDOX Channel Aeration System. LANDY-7 Surface Aerator. OxyStream™ Oxidation Ditch. RDS1™ Trickling Filter Rotary Distributor.
The drive head below is designed for column type thickeners. The main gear consists of a rim with internally machined teeth so that the space in the center is left free for a post that is bolted to the top of the column and supports the walkway.
Filtration Equipment Specifications | Engineering360
Center-column-supported thickeners are usually 75 feet or more in diameter. A central, stationary column constructed of steel or concrete supports the raking arm mechanism. Traction thickeners use a motorized carriage that rides on the tank wall. A driving truss extends from the carriage to the rotating center cage. High Rate Thickener
MudMax™ Bed-Level Monitoring System
MudMax™ uses advanced technology to deliver a first-of-its-kind bed-level monitoring system that provides 360-degree bed-level measurement inside thickeners and clarifiers. Multiple sensors located in the active bed-level area directly detect and accurately measure bed levels. With a simple design that attaches to the rake arm, this practical ...
ALDRUM G3 – a revolution in sludge thickening
mixing valve upstream of the actual drum thickener. Design features - Achieve more with ALDRUM G3 The feed inlet adaptor provides extraordinarily gentle treatment of the sludge being processed. This results in up to 10% lower polymer consumption at the same time as making sure of exceptionally high recovery rates for most types of sludge.
Metallurgist & Mineral Processing Engineer
Metallurgists & Mineral Processing Engineers. For its extensive practical experience, 911 Metallurgist has a clear understanding of what successful mineral processing engineering is and how to go about achieving it. Your goal is the production of a material that is marketable and returns you and your investors sustainable revenues.
Mining: the evolution of thickening rake mechanisms ...
· The original thickener mechanism consists of a central drive shaft, two long rake arms, and two short rake arms, both with strut supports and tie rods "tying" the four arms together. The rake arms have scraper blades to move the material inwards, struts to give the arm vertical support, and tie rods to distribute the torque load evenly ...
Arrangements are known for lifting the rake arm structure in the case of thickeners in which solids fed to the thickener are settling at a faster rate than they are being withdrawn with the underflow or when the settled solids tend to solidify. ... The column 1 supports a cage 3 which is rotatably mounted on the column and is driven by a ...
Case Study: Paste thickening optimises tailings disposal ...
· The two high-rate thickeners operate as clarifiers, returning the bulk of the clarified water to the main plant at the combined hydraulic flow rate of 14,866 to 17,981 cubic metres per hour.
deep cone thickener design calculation 」
· 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. Inquire Now
Thickener Operating pH and Lime for Flocculation ...
· If, for some reason, the thickener''s settling rate is too slow, as in the case of the grind being so fine or you are dealing with clay rich ore and now the concentrate stays in suspension. The thickener could be "sliming" and will produce a dirty overflow combined with a low density underflow.
At the end of 2 days at normal feed rates to the thickener, the rake assembly had risen vertically to the limit of its travel. The air check valve 70 was then adjusted to 120 psig. Valve 24 was opened and valve 26 closed. The thickener then discharged 48 hours of normal feed in 8 hours at a very high density.
The control parameters used to maintain stable operation in high-rate thickeners are underflow solids density, underflow withdrawal rate, flocculant dosage, solids inventory in the tank, solids feed rate, and mechanical torque limit restriction of the rotating rake arm mechanism. Lower-yield stress muds, as produced in a high-rate thickener ...
SEDIMENTATION | FILTRATION | MIXING
The centre column supports the drive and rake mechanisms, while the truss extending from the centre pier to the tank periphery supports the walkway, power lines and feed launder. These systems are generally preferred for larger diameters and heavy duty applicaons due to the sturdy Turn Table Drives & …
The present invention comprises a method for reducing the viscosity of the settled mud or underflow of a raked thickener thereby reducing the torque necessary to move the rake blade through the settled mud. The method includes the step of delivering a viscosity modifier to the settled mud and in front of the rake blade by pumping the viscosity modifier down the rake arm to the area in front of ...
High-Rate Thickeners High-Rate Thickeners, or Clarifiers, recover immediately reusable process water for mineral and aggregate producers, as well as environmental contractors. Thickeners are beneficial in a variety of applications, including areas where water is in short supply or very expensive, re-circulated water is not suitable for reuse in a plant, ponds are located on minable reserves ...
Investigation and Design of a Picket Fence Thickener for ...
3.5.3 Picket Fence Thickeners (PFT) Picket fence thickeners enable the thickening and settlement of particles suspended in water into a sludge, which can then be removed for disposal or treatment. Their rotating blade consists of a series of vertical rods with horizontal supports, so look similar to …
Thickener for Gypsum Wastewater Treatment | Monroe ...
High Torque Thickener Clarifier. Monroe Circular Thickener for wastewater treatment at a gypsum plant. The new clarifier system successfully replaced existing plate clarifiers which were misapplied and under performing given the dense, sticky sludge characteristics. Scope of supply for the clarifier included a 45 ft. diameter circular thickener ...
Stacking practices of high density tailings
2.3 The primary thickener For the primary thickening, a high rate thickener with a diameter of 48 m is used that was designed to handling 875 tons of dry tailings per hour. In actual operation, however, it has reached a handling capacity of up to 1000 t/h. The rake-drive torque was found to be below 5%, and no rake arm rise occurred due to
High-rate Thickener | FL
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 and the feed slurry dilution method. Our patented E-Volute™ …
High Rate Solid Contact Clarifier Detail
Reaction clarifiers (also called High Rate Solid Contact clarifier HRSCC or Solid Contact Clarifier or Solid Contact Clarifier or Sludge Blanket Clarifier) are largely used in pre-treatment of raw water. Paramount Limited makes clarifier mechanism which is suitable for installation either in RCC/ Steel tank. The recommended slope is 1:12 at the ...
Biosolids Technology Fact Sheet Gravity Thickening
Gravity thickener designs usually include circular tanks, 3-4 m (10-13 ft) deep and up to 25 m (82 ft) in diameter. The dimensions are based on prediction of settling due to gravity alone. To assist solids transport, gravity thickener bottoms are constructed with a floor slope between 1:6 and 1:3.
Ultimate Guide About Thickener
· Ultimate Guide About Thickener. 2019-05-22 19:36:17 XinHai. The quality of thickener will directly affect the result of dewatering operation, and high-quality thickener will increase 20%-30% thickening concentration,then strengthen thickening result. In the current ore dressing process, most mineral processing plant adopt wet separation process ...
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