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公开(公告)号：US11433400B2
公开(公告)日：2022-09-06
申请号：US16952297
申请日：2020-11-19
申请人： CDE Global Limited
发明人： Anthony Convery
摘要： A method and apparatus for washing and grading sand includes a first grading screen adapted to separate a feed material into a fine fraction and a coarse fraction, the coarse fraction having a greater particle size than the fine fraction. A first fines separation stage including one or more hydrocyclones is adapted to receive the fine fraction entrained in water, downstream of the first grading screen to thereby remove fine contaminants. A first dewatering screen includes a deck adapted to dewater the fine fraction downstream of the first fines separation stage to provide a fine sand product, and a second dewatering screen includes a deck adapted to dewater the coarse fraction downstream of the first grading screen to provide a coarse sand product.
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公开(公告)号：US20220001305A1
公开(公告)日：2022-01-06
申请号：US17290010
申请日：2019-10-09
申请人： CDE Global Limited
发明人： Anthony Convery
摘要： An apparatus for reducing the water content of waste water sludge includes a column for receiving waste water sludge, an outlet at a lower end of the column, a first closure for closing the outlet of the column, a controller for controlling the opening and closing of the closure. The controller is adapted to open and close the first closure to periodically discharge amounts of settled fines from the lower end of the column. A water outlet is adapted to receive water overflowing from an upper end of the column.
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公开(公告)号：US11103879B2
公开(公告)日：2021-08-31
申请号：US16395676
申请日：2019-04-26
申请人： CDE Global Limited
发明人： Enda Ivanoff
摘要： An apparatus for washing and grading sand and aggregate includes an aggregate grading and washing screen with a plurality of vertically stacked decks for producing a plurality of aggregate products therefrom, and at least one sump for collecting undersize material comprising sand and water from the plurality of decks. A plurality of sand washing and grading units each include a first hydrocyclone, a vibratory screen having a deck, and a sump beneath the deck for receiving undersize material and water passing through the deck. The deck of the vibratory screen receives an underflow from the first hydrocyclone. A further hydrocyclone receives undersize material and water from the vibratory screen's sump. Underflow from the further hydrocyclone is delivered onto the deck of the vibratory screen. The first hydrocyclone of each sand washing and grading unit receives undersize material and water from the sump of the aggregate washing and grading screen.
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公开(公告)号：US20210146376A1
公开(公告)日：2021-05-20
申请号：US16952297
申请日：2020-11-19
申请人： CDE Global Limited
发明人： Anthony Convery
摘要： A method and apparatus for washing and grading sand includes a first grading screen adapted to separate a feed material into a fine fraction and a coarse fraction, the coarse fraction having a greater particle size than the fine fraction. A first fines separation stage including one or more hydrocyclones is adapted to receive the fine fraction entrained in water, downstream of the first grading screen to thereby remove fine contaminants. A first dewatering screen includes a deck adapted to dewater the fine fraction downstream of the first fines separation stage to provide a fine sand product, and a second dewatering screen includes a deck adapted to dewater the coarse fraction downstream of the first grading screen to provide a coarse sand product.
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公开(公告)号：US20180243796A1
公开(公告)日：2018-08-30
申请号：US15907795
申请日：2018-02-28
申请人： CDE Global Limited
发明人： Enda Ivanoff
CPC分类号： B07B1/005 , B07B1/28 , B07B1/4663 , B07B11/06 , B07B2201/04 , B07B2230/01 , B65G47/20 , E21B21/065
摘要： An apparatus for washing and grading sand and aggregate includes a first multi-deck screen and a sump for collecting undersize material from the plurality of decks. A first set of hydrocyclones receives undersize material and water from the sump of the first screen. A second screen has a deck for producing at least one sand product and a sump beneath the deck, the deck of the second screen receiving an underflow from each cyclone of the first set of hydrocyclones. A second set of hydrocyclones receives undersize material and water from the sump of the second vibratory screen. The deck of a third screen receives an underflow from each cyclone of the second set of hydrocyclones. A further hydrocyclone receives undersize material and water from the sump of the third screen, and an underflow from the further hydrocyclone is delivered onto the deck of the third screen.
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公开(公告)号：US20180214889A1
公开(公告)日：2018-08-02
申请号：US15884891
申请日：2018-01-31
申请人： CDE Global Limited
发明人： Anthony Convery
摘要： An apparatus for washing and grading aggregate includes a chassis; a first grading screen mounted on the chassis for removing oversize material from a feed material; a first hydrocyclone mounted on the chassis receiving undersize material and water from the first grading screen; a second grading screen mounted on the chassis for producing at least one sand product, the second grading screen receiving an underflow from the first hydrocyclone; a second hydrocyclone mounted on the chassis receiving undersize material and water from the second grading screen; and an underflow from the second hydrocyclone being delivered onto the second grading screen.
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公开(公告)号：US20170291198A1
公开(公告)日：2017-10-12
申请号：US15481682
申请日：2017-04-07
申请人： CDE Global Limited
摘要： 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.
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公开(公告)号：US09656270B2
公开(公告)日：2017-05-23
申请号：US14936954
申请日：2015-11-10
申请人： CDE Global Limited
发明人： Anthony Convery
CPC分类号： B03B5/623 , B01D21/0003
摘要： An apparatus for classifying particulate material includes at least one tank for receiving a feed slurry, a device for introducing water into a lower region of the at least one tank whereby water is caused to flow upwardly and through the feed slurry contained therein, whereby hydraulic separation takes place within the at least one tank with particles of lower settling velocity progressing upwardly and into a device for effecting discharge of an overflow fraction from the at least one tank, and particles of greater settling velocity progressing downwardly to a lower region of at least one tank, wherein the feed slurry is introduced into the at least one tank in an upwards direction.
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公开(公告)号：US20160129453A1
公开(公告)日：2016-05-12
申请号：US14936954
申请日：2015-11-10
申请人： CDE Global Limited
发明人： Anthony Convery
CPC分类号： B03B5/623 , B01D21/0003
摘要： An apparatus for classifying particulate material includes at least one tank for receiving a feed slurry, a device for introducing water into a lower region of the at least one tank whereby water is caused to flow upwardly and through the feed slurry contained therein, whereby hydraulic separation takes place within the at least one tank with particles of lower settling velocity progressing upwardly and into a device for effecting discharge of an overflow fraction from the at least one tank, and particles of greater settling velocity progressing downwardly to a lower region of at least one tank, wherein the feed slurry is introduced into the at least one tank in an upwards direction.
摘要翻译： 用于分级颗粒材料的装置包括至少一个用于接收进料浆料的罐，用于将水引入至少一个罐的下部区域的装置，由此使水向上流动并通过其中所含的进料浆液，由此水分离 在所述至少一个罐内发生具有较低沉降速度的颗粒向上进入并进入用于从所述至少一个罐排出溢流部分的装置，并且具有较大沉降速度的颗粒向下延伸到至少一个的下部区域 罐，其中进料浆料沿向上的方向被引入至少一个罐中。
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公开(公告)号：US20230024835A1
公开(公告)日：2023-01-26
申请号：US17871967
申请日：2022-07-24
申请人： CDE Global Limited
发明人： Anthony Convery
摘要： An apparatus for processing aggregate material includes a chassis, a trough mounted on the chassis at an inclined angle, and at least one shaft rotatably mounted within the trough and extending from a lower to an upper end of the trough. The at least one shaft has blades mounted thereon, the blades being angled so that they carry material within the trough towards the upper end of the trough when the at least one shaft is in a normal direction of rotation. A discharge opening is formed in a base of the trough adjacent the upper end of the trough, a weir being provided in the trough upstream of the discharge opening over which processed material must pass to reach the discharge opening.
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