04-01-2016· thickener rake tip speed TRclub Noord Holland . The tip speed of the outer blade at 1 rpm corre- sponds to the same tip speed as that in a 40 m thickener The pilot-scale thickener facility used in this study is a operating at a rake speed of 3 rev h− 1 (20 min rev− 1). closed loop system and is shown schematically in Fig. 1.
thickener rake tip speed TRclub Noord Holland Regio 3. The tip speed of the outer blade at 1 rpm corre sponds to the same tip speed as that in a 40 m thickener The pilot scale thickener facility used in this study is a operating at a rake speed of 3 rev h 1 20 min rev 1. closed loop system and is shown schematically in Fig. 1. Read More
We generally operate at a thickener rake speed of 8 to 12m/min Thus gearbox output rpm = = rake tip speed (m/min) π x diameter (m) = 8 π X 12 = 021 rpm (d) Electric motor sizing To size an electric motor, we would use the following calculation; P = 2 π N T 60 x E x 1000. Get Price Email contact
29-03-2019· Rake should have a tip speed of 50 to 100 mm/s (9.8 to 19.7 ft/min); To be equipped with hinged lift mechanisms when handling heavy sludge such as lime-treated primary sludge, otherwise optional; and Surface skimmer is recommended.
(c) Gearbox output speed We generally operate at a thickener rake speed of 8 to 12m/min Thus gearbox output rpm = = rake tip speed (m/min) x diameter (m) = 8 X 12 = 0.21 rpm (d) Electric motor sizing To size an electric motor, we would use the following calculation; Kuhn Speed Rake SR110 Overview YouTube
RAKE THICKENER TWS also offers a range of rake style, high rate thickeners which allow for minimal feed height, facilitating gravity feed from upstream cyclone based washing systems. Rake thickeners are designed specifically to deal with high volumes of slurry.
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18-10-2016· Thickener Mechanism The mechanism consists of the bridge, drive and ancillaries, lifting device, feedwell, torque tube and rake arms with blades. Bridge Bridge designs are available in a truss type or castellated beam, based on the application, thickener diameter and location.
09-01-2021· Thickener Torque -Rakes Drive. A little earlier I talked about the rakes of the thickener, these are long arms that extend off of the bottom of the DRIVE SHAFT. As the shaft turns the rakes will sweep the entire bed of the thickener thereby applied Torque. Each rake arm is higher at its far end than it is where it joins the drive shaft.
28-03-2008· The tip speed of the outer blade at 1 rpm corresponds to the same tip speed as that in a 40 m thickener operating at a rake speed of 3 rev h − 1 (20 min rev − 1). A VFD (Sumitomo NTAC-2000) was used to control the rake speed either by manual setting or by utilising the on-board programming capabilities. 2.2. Rake arm and rake blade design
thickener. Rake height indicators are also typically supplied by the thickener manufacturer. The two most common methods are ultrasonic and a potentiometer with a reeling cable. Both are reliable and accurate. Bed level There are several general types of bed level detection; ultrasonic, nuclear, float and …
We generally operate at a thickener rake speed of 8 to 12m/min Thus gearbox output rpm = = rake tip speed (m/min) π x diameter (m) = 8 π X 12 = 0.21 rpm (d) Electric motor sizing To size an electric motor, we would use the following calculation P = 2 π N T 60 x E x 1000.
25-04-2016· If you study thickener operation a little and think about it, you can make a really interesting job out of it. To start at the beginning, let's see what a thickener is. We have fixed up a couple of diagrams on this page to show you the inside of one,and, as you see, the main elements are the tank, the rake arms, and the drive mechanism.
The rake tip speed shall not exceed 13 feet per minute. 2.2.4 Tank shall be provided with four (4) @ 2 inch diameter flanged decant withdrawal outlets located at approximately two (2) foot intervals down the straight wall of the thickener.
22-01-2019· Deep cone thickener (DCT) is key equipment in cemented paste backfill (CPB) technology. However, rake blockage occurs frequently in DCT during the dewatering process of the unclassified tailings being thickened from dilute slurry to thickened tailings or paste. Rake blockage has disastrous effects on the CPB operation. In order to investigate the influencing factors of rake blockage in DCT, a ...
The sedimentation filters principle is based on . Retention time, tanks dimension, inlet and outlet speed depend on the slurry properties. If the object of sedimentation filter was clarification, the system is clarifier and if the object of sedimentation filter was concentration of solid phase, the system is thickener.
(c) Gearbox output speed We generally operate at a thickener rake speed of 8 to 12m/min Thus gearbox output rpm = = rake tip speed (m/min) π x diameter (m) = 8 π X 12 = 0.21 rpm (d) Electric motor sizing To size an electric motor, we would use the following calculation;
(c) Gearbox output speed We generally operate at a thickener rake speed of 8 to 12m/min Thus gearbox output rpm = = rake tip speed (m/min) π x diameter (m) = 8 π X 12 = 0.21 rpm (d) Electric motor sizing To size an electric motor, we would use the following calculation;
Mar 28, 2008· The tip speed of the outer blade at 1 rpm corresponds to the same tip speed as that in a 40 m thickener operating at a rake speed of 3 rev h − 1 (20 min rev − 1). A VFD (Sumitomo NTAC-2000) was used to control the rake speed either by manual setting or by utilising the on-board programming capabilities.
thickener rake tip speed TRclub Noord Holland Regio 3. The tip speed of the outer blade at 1 rpm corre sponds to the same tip speed as that in a 40 m thickener The pilotscale thickener facility used in this study is a operating at a rake speed of 3 rev h− 1 20 min rev− 1 closed loop system and is shown schematically in Fig 1.
28-03-2008· The rake is mounted on a central shaft that is driven by a motor and gearbox at speeds between 0.2 and 2 rpm. The tip speed of the outer blade at 1 rpm corresponds to the same tip speed as that in a 40 m thickener operating at a rake speed of 3 rev h− 1 (20 min rev − 1).
13-08-2015· This means that the rakes will have to be kept turning to evenly distribute the concentrate over thickener bed. To give the circuit the longest possible down time, the drive shaft and rake arms may be lifted to make room for the mineral as it settles. As the load in the thickener settles to the bed, the Torque on the rake arms will be climbing.
We generally operate at a thickener rake speed of 8 to 12m/min Thus gearbox output rpm = = rake tip speed (m/min) π x diameter (m) = 8 π X 12 = 021 rpm (d) Electric motor sizing To size an electric motor we would use the following calculation P = 2 π N T 60 x E x 1000. get price
The Thickener Components. As mentioned previously most of the high-rate thickeners subassemblies are similar to those of conventional thickeners except for lifting devices that are not available on all units due to design restrictions. The similar components may be seen in the following links: The Drive Head
Thickener rakes are usually central ly-driven using modest electrical or hydraulic drives to deliver h igh . torque, low speed outputs. ... absence of the rake-bed speed differential, ...