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Cde Global Limited patents


Recent patent applications related to Cde Global Limited. Cde Global Limited is listed as an Agent/Assignee. Note: Cde Global Limited may have other listings under different names/spellings. We're not affiliated with Cde Global Limited, we're just tracking patents.

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Multi-deck screening assembly

A multi-deck screening assembly includes upper and lower screen decks, each having first and second deck sections. The upper deck's first deck section has first-size grading apertures, and its second deck section is downstream of the first deck section with second-size grading apertures larger than the first-size apertures. ... Cde Global Limited

Process and apparatus for refining sand

A process for refining sand for use as frac sand includes the steps of passing the sand through a first fines separation stage to remove fine particles of contaminant from the sand, reducing the water content of the sand (such as to less than 20%), passing the sand into an attrition scrubber unit containing moving blades to delaminate clay and other contaminants from the sand grains, passing the sand from the attrition scrubber unit through a second fines separation stage to separate fine contaminants from the sand, and dewatering the resulting sand product in a further dewatering stage.. . ... Cde Global Limited

Material processing apparatus

An apparatus for the wet attrition of particulate material comprising an attrition scrubber; a dewatering screen comprising a deck and a sump beneath the deck, the dewatering screen being mounted upstream of the attrition scrubber whereby oversize material from a downstream end of the deck of the dewatering screen passes into the attrition scrubber; and a hydrocyclone wherein an underflow, containing a coarser fraction of the feed slurry, passes out of a lower outlet of the hydrocylone while an overflow, containing a finer fraction of the feed slurry and most of the water, passes out of an outlet at the upper end of the hydrocyclone, a pump being provided for pumping material from the sump of the dewatering screen to the inlet of the hydrocyclone, wherein the underflow from the hydrocyclone is passed into the attrition scrubber.. . ... Cde Global Limited

Apparatus for processing aggregate material

An apparatus for processing aggregate material comprising an inclined trough having a pair of shafts rotatably mounted therein, the shafts having staggered blades arranged pass between one another during rotation of the shafts and angled to carry material towards an upper end of the trough, excess water and any floating trash passing over a weir adjacent a lower end of the trough onto the deck of a first vibratory screen, and a second vibatory screen being mounted adjacent the upper end of the trough for receiving particulate material from the upper end of the trough, the second vibratory screen having at least one deck for grading the material, wherein water collected in a sump of the first vibratory screen is arranged to pass into a sump of the second vibratory screen.. . ... Cde Global Limited








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