Thickeners and Clarifiers
DELKOR's thickener is a proven performer across a variety of applications ranging from the mining and minerals industry to industrial, chemical, water treatment and wastewater industries. ... With units of up to 100 m in diameter having been installed, the benefits of our DELKOR conventional, high-rate, high-density and paste thickeners include ...
Raking in gravity thickeners
It is the first of these functions that is the focus of this paper. Although thickener rakes are essential in the transport of bed material to the underflow in conventional thickener designs, and effective rake design and operation can reduce the likelihood of rat-holing, little is known about transport due to rake action in thickeners.
Thickeners and clarifiers – water recovery – FLS
Whether you choose a High-Rate Thickener, a Deep Cone Thickener or one of our other solutions, we'll utilise all our process and materials expertise to optimise the underflow to meet …
Thickeners and clarifiers – water recovery – FLS
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. ... The spiral design of our thickener rake arm assembly reduces energy consumption, minimises downtime and enhances ...
Maximise water recovery with thickener upgrades – FLS
Customers have reduced water to tailings by up to 46% by upgrading their thickener. An Australian gold mine reduced water consumption by upgrading their thickener with E-DUC ® autodilution and E-Volute ™ feedwell systems. The E-Volute feedwell optimizes flocculation and aggregate growth, while the E-DUC feed dilution system minimizes flocculant use and …
Rota-Rake® Solids Thickener
Rota-Rake ® Solids Thickener. The Graver Rota-Rake® Clarifier is a horizontal flow sedimentation and thickening unit for the efficient separation of suspended solids from liquids by gravity. Designed for maximum separation, positive slude …
Thickener
Conventional thickeners, which are typically 15 to 60 m (50 to 200 ft) diameter, require constant monitoring to ensure that overflow clarity and underflow density is maintained and the rake mechanism is not overloaded.
High-Rate Thickeners
Operating logic allows for customization of the unit for plant needs, including the ability for the Thickener to shut down without an operator being present during extended hours of operation. The hydraulic drive gives an accurate sense of torque on the rakes. At high torque conditions, a rake lift will activate to draw the rakes up from the mud.
Conventional Gravity Thickeners
A heavy duty drive unit with precision bearing and gear transmits torque through a steel center shaft to the rake arms. Equipped with Torkmatic drive control, the WesTech drive unit senses increasing torque and overload conditions, and will sound an alarm to alert an operator.
Efficiency of raking in gravity thickeners
A key component of most thickener operations is the motion of a thickened sediment across the floor of the tank to an underflow, usually located centrally. In most conventional thickeners and in many high rate and paste thickeners, this transport is aided by a set of two or four rake arms (see the schematics in Fig. 1, Fig. 3).
Thickener Selection Parameters
In the conventional thickener, particularly in the smaller units, the feed well is primarily a baffle to absorb energy. Usually it is a simple cylinder and can be roughly sized using a figure of 24 gpm/sq.ft. of area. ... Angle rakes, the most common kind, can be provided to rake once per revolution, twice per revolution, three times per ...
How to Operate a Thickener
The rake arms are buried in mud, and the feed will have to be cut until the thickener has been unloaded. When unloaded, the arms have to be raised until the thickener mechanism will again turn. Following this, the pump must be speeded up to help draw down the sludge load as fast as possible.
Thickeners and Clarifiers
Achieve a higher density underflow with our High Compression Thickener. The HCT has been designed to suit customer needs with a deeper solids bed and higher rake torque than our High Rate Thickener or conventional thickeners. Consistent and high-density underflow Maintains a constant solids inventory and solid/liquid interface
Theory and Application of Thickener Design
Unlike conventional thickener area calculations, the test procedure demonstrates the dependence ofthe flux curve on the system feed flux. At a given ... is sometimes attributed to rake action, but it can easily be shown (Hassett, 1958) by material balance to be a natural phenomenon,
Conventional Thickeners
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.
Thickeners
Wa offers conventional thickeners, Hirate thickeners, Ultra Hirate thickeners and Paste thickeners. Thickener diameters up to 35m are available with the rake mechanism supported …
HiFlo High Rate Paste Thickeners
Separation is effected rapidly because of the system hydraulics, which can be in excess of twenty times the hydraulics of conventional thickeners. As a result of the innovative design and associated hydraulic efficiency, the plant area for the …
conventional thickener center column price
Either requires a scraper assembly attached to the rake structure to keep the material moving. ... Conventional Thickener For Kaolin Good Price Conventional thickener for fluorite high output HiFlo High Rate Paste Thickeners WesTech Engineering High pressure grinding rolls HPGRs HRC 65 Conventional clarifierthickener drive system high normally ...
High Rate Thickeners/Concentrator | Dewatering …
Filtaquip Conventional High Rake Thickeners/concentrators, ideal for large water flows, have a limited height and a large surface area. Equipped with a peripheral scraper bridge system, known as the rakes, scraping the thickened pulp to the …
Raking in gravity thickeners
The term "conventional thickener" refers to those tanks with a shallow base slope and a relatively shallow depth of sediment, and is the type of equipment that is the focus of this study. ... For the conventional rake studies here, five blades were used and were mounted at 30° from the direction normal to the arm (see Fig. 2 b). Download: ...
High Retention Conventional | Enviro-Clear
Enviro-Clear® Company, Inc. 152 Cregar Road High Bridge, NJ 08829 USA Phone: 001-908-638-5507 Fax: 001-908-638-4636 Email: info@enviro-clear
The High Rate Thickener
That the mass balance of underflow pumping and rake arms conveyance will not cause a "rat hole" in the discharge cone or conversely a sludge pile-up. ... The Thickener Components. ... The conventional feedwell consisted of a smooth cylinder with no internals but in the early 60's, on a red mud application in an alumina plant in Jamaica, a shelf ...
High Rate Thickeners
Complementary automation offering to improve thickener performance by controlling and optimizing the key variables; HRT-S. HRT-S is a robust pre-engineered high rate thickening solution that is delivered efficiently, is easy to operate and service.
Raking in gravity thickeners | Request PDF
Thickener rakes are essential in the transport of sediment bed material to the underflow in conventional thickeners, however very few studies of bed transport have been published.
Tailings thickener retrofit, OK Tedi
The pyrite concentrate containing sulphur report to a 40m concentrate thickener, namely thickener 1. The tailings from the Pyrite recovery plant reported to two 50m Dorr Oliver conventional thickeners, both of which were to be retrofitted and upgraded. ... Fitting a rake lift to the existing thickeners would have substantially increased supply ...
conventional thickener cone scraper price
Mechanical model of scraper rake torque in deep-cone thickener April 2012 Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) 43(4):1469-1474. Deep Cone® Thickeners. ... Inicio > conventional thickener drive cage price. ThICKENERS - TENOVA. center drive systems capable of 14 MNm of torque. ...
High Capacity Thickener Retrofit
- Automatic rake lift and descent based on torque measurement. Westpro's 55ft dia. Westpro high capacity thickener retrofit, providing increased thickener capacity for over 10 years Westpro 48ft high capacity thickener retrofit hydraulic drive and control panel View of Westpro's 138ft diameter high capacity thickener mechanism
High Rate Thickeners/Concentrator | Dewatering …
Filtaquip Conventional High Rake Thickeners/concentrators, ideal for large water flows, have a limited height and a large surface area. Equipped with a. ... Our specialised feedwell design allows for improved sediment discharge directed at …
Conventional Thickener Rake With Drive Unit Price
Efficiency of raking in gravity thickeners In most conventional thickeners and in many high rate and paste thickeners, this transport is aided by a set of two or four rake arms (see the schematics in Fig. 1, …
(PDF) Understanding the Thickening Process
conventional thickening operations. Some other results for a range of thickeners are shown in Figure 4. ... difficult information to obtain is that required for determination of thickener rake ...