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    PROCESS AND APPARATUS FOR REFINING SAND
    4.
    发明申请
    PROCESS AND APPARATUS FOR REFINING SAND 有权

    公开(公告)号：US20170348702A1

    公开(公告)日：2017-12-07

    申请号：US15685565

    申请日：2017-08-24

    申请人： CDE Global Limited

    发明人： Anthony Convery ,  Glenn Sloan

    IPC分类号： B03B9/02 ,  B03B7/00 ,  B03B5/48 ,  B03B9/00 ,  B03B5/34

    CPC分类号： B03B9/02 ,  B03B5/34 ,  B03B5/48 ,  B03B7/00 ,  B03B9/00

    摘要： 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.

    Fluidized Bed Sluice
    5.
    发明申请
    Fluidized Bed Sluice 审中-公开

    公开(公告)号：US20170209868A1

    公开(公告)日：2017-07-27

    申请号：US15355701

    申请日：2016-11-18

    申请人： Kevin P. BELL

    发明人： Kevin P. BELL

    IPC分类号： B03B5/26 ,  B07B1/04 ,  B03B7/00

    CPC分类号： B03B5/26 ,  B03B7/00 ,  B07B1/04 ,  B07B2230/01

    摘要： A sluice including an upper channel that includes a material deck and a tilted classification screen. Below the classification screen is a lower cavity located between two longitudinally aligned plenums located under the upper channel. Each plenum includes a front opening and a rear opening and an interior sidewall. Extending between the plenums is a floor plate. Fluidization holes are formed on each interior sidewall. During use, the sluice is positioned in a stream so water flows simultaneously over the upper channel and the through the front openings of the plenums. Water flowing over the upper channel separates mined material placed on the material deck so that small particles fall through the classification screen. The water entering the front openings of the two plenums flows through the plenums and partially exits through the fluidization holes and sprays over the small particles deposited in the lower cavity further separating the fine gold particles from the small particles.

    Counter-flow ore separator
    6.
    发明授权
    Counter-flow ore separator 有权

    公开(公告)号：US09700900B1

    公开(公告)日：2017-07-11

    申请号：US14859562

    申请日：2015-09-21

    申请人： Black Shell Technologies LLC

    发明人： Laurent R. Olivier

    IPC分类号： B07B9/00 ,  B04C9/00 ,  B04C5/103 ,  B03B7/00 ,  B04C5/26

    CPC分类号： B03B7/00 ,  B03B5/56 ,  B03B5/623

    摘要： The present invention includes a mining system adapted to change underwater mining by selecting and harvesting only the target ore or gem. It eliminates costly displacement in mass of ore or material to the surface or shore, reduces pollution of the water column, and minimizes disturbance of the environment. The system includes a trommel fluidly coupled to separators, wherein each separator uses a vortex-like flow pattern to separate high-density sediment from lower density sediment based on flow rate. The present invention is the capable of separating and collecting various sized of desired ore in one pass. Additionally, the system is adapted to be coupled with a ROV dredge to reduce or eliminate diving time and risk of human life.

    DRY METHOD HEAVY MEDIUM SEPARATOR ADOPTING DRY METHOD HEAVY MEDIUM SEPARATION BED AND SEPARATION DEVICE
    9.
    发明申请
    DRY METHOD HEAVY MEDIUM SEPARATOR ADOPTING DRY METHOD HEAVY MEDIUM SEPARATION BED AND SEPARATION DEVICE 审中-公开

    公开(公告)号：US20170100722A1

    公开(公告)日：2017-04-13

    申请号：US15389228

    申请日：2016-12-22

    申请人： Gongmin LI ,  Jing LI ,  Zhifu CUI

    发明人： Gongmin LI ,  Jing LI ,  Zhifu CUI

    IPC分类号： B03B5/46 ,  B07B15/00 ,  B03B7/00

    CPC分类号： B03B5/46 ,  B03B4/00 ,  B03B7/00 ,  B07B15/00

    摘要： The present invention provides a dry method heavy medium separator adopting a dry method heavy medium separation bed and a separation device. According to the dry method heavy medium separator, a floating material end medium drum screen and a sediment end medium drum screen are arranged below a floating material discharge end and a sediment discharge end of the dry method heavy medium separator and used for separating products from media; a bag-type dust collector is used for collecting dust, a dust collector pipeline is arranged at the top of the dry method heavy medium separator, the air draft volume is larger than the air supply volume during working of the dry method heavy medium separator, the inside of the separator is in a negative pressure state, and therefore dust in the dry method heavy medium separator cannot escape; and the whole system is in a fully closed working state. According to the dry method heavy medium separator adopting the dry method heavy medium separation bed and the separation device, the problems that the fluidization density is instable, the air flow distribution is not uniform in a fluidization process, the medium separation efficiency of an existing medium separation screen for fine materials is low, the magnetic medium content of the fine materials subjected to medium separation is high, and the like are solved, and the medium separation efficiency for fine materials can be improved remarkably.