System-120 installation: Excavator drops material into VF-120 Vibrating Grizzly Feeder which feeds CS-120. Material is then Scrubbed, Classified and fed to four recovery sluices. Processing capacity is up to 120 tons per hour.
Four independent recovery sluices allow the system to run continuously. Whilst one sluice is being cleaned the others are still able to run without any down time.
The CS-120 is designed and engineered to be mobile, robust and easy to transport and ship, whilst maximizing production capacity.
The CS-120 is capable of Scrubbing and Classifying up to 120 tons per hour. Exact capacity will depend on characteristics of material to be processed.
As with all EXTRAC-TEC equipment, the CS-120 is manufactured using top quality, high-strength and heavy-duty materials and components to ensure long life and operational reliability.
Material is fed from an external feeder into the CS-120 via a funnel shaped Feed Chute. The Feed Chute is fitted with an adjustable vibration motor to assist the feeding action. Replaceable, high abrasion-resistance wear liners attached to the inside of the Feed Chute prevent wear of structural components.
The Scrubbing section of the CS-120 Trommel is split into 3 high capacity chambers with material lifters. This provides a very aggressive washing action with long process retention time for best scrubbing results. Each Scrubber chamber is fitted with replaceable, high abrasion-resistance wear liners which prevent wear of structural components.
Scrubbed material is fed into the double-drum screening section where material is efficiently and accurately rinsed and classified. The inner drum removes all oversize material which is discharged as tailings whilst undersize material passes to the outer screen drum. The outer screen drum splits the material into an oversize fraction which is discharged as tailings whilst the undersize fraction is passed to the Slurry Distributor below the screening section.
The 2 meter diameter, double-drum screening section provides for precise and efficient classification to ensure that only the valuable material size fraction passes through to the recovery step of the process. Wear-resistant screen panels in both the inner and outer drum are replaceable which makes it simple and quick to customize the screens sizing profile according to requirements of your operation.
An independently controllable wash bar runs through the entire screening section. Replacable wash bar nozzles can be individually selected and oriented to optimize water flow and for ease of maintenance.
The Screen frame is coated with high abrasion-resistant material for maximum durability and component life.
Undersize material falls into the Slurry Distributor below the screening section where it is fed via slurry hoses to the recovery sluice boxes. The Slurry Distributor allows you to control the flow split between the four sluice boxes and even to shut down one, two, or three outputs to accomodate sluice cleanups or production at a reduced feed rate.
Distribution of material to recovery sluice boxes via slurry hose allows maximum flexibility in positioning of sluice boxes based on the layout of your site.
Gravity flow of slurry to the sluices and from the sluices to the tailings pond requires no additional pumps or equipment. A water recirculation circuit can then easily be added.
Recovery sluice boxes are independently controlled via the Slurry Distributor which allows for cleanup of individual sluices without production shutdown. Sluice box height and inclination can be set by adjusting the height of the landing legs.
Sluice boxes are equipped with Hungarian Riffles and Expanded Metal Riffles as well as sluice mats and riffle locks. Concentrate removed with the sluice mats must then be sent to a final concentrate cleaning step which can be done using an EXTRAC-TEC HPC machine or a shaker table.
Oversize tailings are discharged from the end of the CS-120. Tailings can be removed from a tailings pit directly next to the machine or can be discharged further from the machine with an Oversize Tailings Conveyor which we supply.
The Water Manifold allows for independent control of flow rate to the Feed Chute and Scrubbing section, the Screening Wash Bar and to the Slurry Distributor.
The stand-alone electrical control box can be operated from a safe distance and once it is set up, it can be locked and only needs to be switched on or off with every shift.
Only top quality, heavy duty, internationally available drive components are used.
Safety covers are installed around the drive system and Trommel support casters to ensure operator safety and to protect machine components.
The wheels and axles can be completely removed for safekeeping once the machine is moved into position and installed.
A total of six heavy-duty landing legs keep the CS-120 stable during production.
The CS-120 can be shipped and transported completely assembled and is easily towed with a tractor or earth-moving equipment once on site.
The VF-120 Vibrating Grizzly Feeder is an auxiliary unit supplied with the CS-120. The CS-120 can also be fed using a feed conveyor or even with a slurry pump provided water flow rate is properly controlled.
The VF-120 is positioned above the Feed Chute of the CS-120 so that undersize material can be directed into the Scrubber.
The vibrating grizzly section is energized by two vibratory motors. A static chute positioned above the vibrating section allows for the unit to be fed using a wide bucket excavator or even a wheel loader.
The feeder frame is designed to stop vibration transferring to other machine components and allows for easy access to all components for maintenance and repair.
The large oversize chute and grizzly bars makes it possible to feed unscreened gravel straight into the feeder.
The height of the feeder can also be adjusted if the feeder ever needs to be applied to a different process on site.
Unscreened material is fed from the material stockpile into the VF-120 using a large bucket excavator.
The VF-120 is designed to allow feeding using a wheel loader instead of an excavator as these units are typically far less costly. If feeding with the wheel loader, an earth-ramp will most likely be required for the loader.
Heavy-duty grizzly bars are spaced to allow -150mm (-6″) rocks to flow to the CS-120 whilst oversize rocks and boulders are rejected as tailings. A water spray system can be fitted above the grizzly bars if required.
The Oversize Chute is lined with replaceable, heavy-duty wear liners to protect structural components and extend the life of the chute.
Rocks of +150mm (+6″) size and boulders discharged from the feeder collect on the ground or in a tailings pit from where they can be removed.