Case Studies: Dewatering & Wet Screening

View case studies of Dewatering & Wet Screening Systems below.

These are high capacity wet screening and dewatering machines used for a wide range of sizing and classification applications. These machines are used in the following industries: Mining, Aggregate Processing, Chemical, Plastics, Waste Water Processing, Brewing, Forest Product Industries, Silica Sand and Coal.

Wet frac sand tailings stream  is being processed to recover product before wet sand tailings are sent back to quarry. Water and silica sand is processed over a urethane screen panel designed to remove any remaining product from the tailings stream.

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Product Recovery from Silica Sand Tailings Stream was last modified: March 5th, 2017 by Grant Rice

silica sand wet scalping screen

Three vibratory screens are being use to scalp oversized silica sand particles in wet screening application. Sand and water is being fed from a water separator onto the screen surface. All sand particles larger than 40 mesh are scalped off and removed from the flow.

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Silica Sand Wet Scalping Screen was last modified: March 5th, 2017 by Grant Rice

A Frac Sand Producer was looking to increase production rates at an existing production plant. The product specification goal was to produce a consistent 40 X 70 API (American Petroleum Institute) standard product.  Feed to the Stack Sizer screening machines is from a processed material stream that discharges from a hydrocyclone at a solid feed rate of 150 stph.

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Efficient Frac Sand Screening was last modified: March 5th, 2017 by Grant Rice

Ashphalt Sand Production Dewatering Screen and Dryer

This Sand Production Equipment produces a clean and dry Industrial Sand that contains less than 2% minus 200 mesh at a rate of 150-175 t/h.

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Producing High Quality Industrial Sand was last modified: March 5th, 2017 by Grant Rice

fine screening of garnet from mineral sands

A Mineral Sands Producer used a new fine screening machines (or repulp equipment) to recover Garnet at over 90% efficiency.  The older, conventional vibrating screens were only able to recover material at about 44% efficiency.

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Fine Screening of Garnet by Mineral Sands Producer was last modified: March 5th, 2017 by Grant Rice

centrifuge to dewater slurry and fines

A large aggregate producer replaced an inefficient belt press and settling pond with a 12-15 t/h Derrick® Centrifuge and Hi-G® Dewatering Machine.

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Dewatering Centrifuge and Dryer replace Belt Press at Aggregate Plant was last modified: March 5th, 2017 by Grant Rice

High Efficiency Screens for Quartz Sand

Two, 5-deck Derrick® Stack Sizer® screening machines were installed to achieve a 500 Micron Separation of Quartz Sand for a major Silica Sand Producer.

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High Efficiency Screening Separations of Quartz Sand was last modified: March 5th, 2017 by Grant Rice

screening wet silica sand

A Silica Sand Producer required four dual motor wet screening machines.  These linear-motion machines included high open area 25 mesh urethane screen panels.  Spray nozzles were also incorporated into the design for increased fines removal.

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Screening Wet Silica Sand was last modified: March 5th, 2017 by Grant Rice
fine screening and dewatering for mineral processing

Multiple 5 Deck Derrick® Stack Sizer® Installations

The patented, high-volume Derrick® Stack Sizer® provides a much better economic alternative to Hydrocyclone separators, hydraulic classifiers and less efficient low volume fine screening systems.

Over 300 of the Stack Sizer units have been sold throughout the world for Fine Screening and Dewatering applications that require high tonnage mineral processing.

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Stack Sizer: Fine Screening & Dewatering during High Volume Mineral Processing was last modified: March 5th, 2017 by Grant Rice
Integrated dewatering system with double roll crusher

Integrated dewatering system with double roll crusher (click for larger image)

This continuous and automatic dewatering system turns wet petroleum coke slurry and sludge into dry solids that can be stacked or conveyed easily.  The system requires little or no maintenance and is not affected by the amount of water in the solids.  It can be stationary or mounted on tracks and rails.

This type of dewatering system fits most coking applications.  It can also be used for other types of bulk solids that require industrial scale drying before loading onto rail cars, trucks, barges or ground storage.  It uses the principle of two-mass, natural frequency, sub-resonant magnification.  This means that a small exciting force acts upon a coil spring amplification system to alternately store and release energy and move material in a shuffling motion.

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Dewatering System dries wet Petroleum Coke into dry stackable solids was last modified: June 29th, 2012 by Grant Rice