Tomographic determination of multiphase flows in pipes and/or liquid/froth interfaces in process tanks using high speed multiplexed electrical impedance sensing

    公开(公告)号:US10921275B2

    公开(公告)日:2021-02-16

    申请号:US14762215

    申请日:2014-01-22

    Inventor: Alan D. Kersey

    Abstract: Apparatus is provided featuring a signal processor or processing module configured at least to: receive signaling containing information about coded and multiplexed voltages measured across pairs of electrodes in an array of electrodes configured in relation to a fluid processing structure, including a pipe, tank, vessel, vat or container, having a process fluid therein; and determine using a tomographic signal processing algorithm a tomographic indication of the process fluid, based at least partly on the signaling received. The signal processor module may be configured to provide corresponding signaling containing information about the tomographic indication of the process fluid. The tomographic indication includes a 2D or 3D image or visualization of the process fluid, including an analysis of mixing in multiphase flows, liquid interfaces or liquid-froth layers detected in the process fluid.

    Techniques for optimizing performance of cyclones

    公开(公告)号:US10394207B2

    公开(公告)日:2019-08-27

    申请号:US14914048

    申请日:2014-08-26

    Abstract: Apparatus is provided including a signal processor or signal processing module configured at least to: respond to signaling containing information about particle sizes of solids forming part of a slurry stream being fed with a common feed flow into a battery of cyclones; and determine which combinations of cyclones in the battery produce overflow that has undesirable particle size characteristics using a statistical algorithm or technique, based upon the signaling received. The signal processor or signal processing module provides corresponding signaling containing about which combinations of cyclones in the battery produce overflow that has undesirable particle size characteristics, including control signaling to control the operation of the battery, including information about certain combinations of cyclones to avoid, or preferentially to use, to minimize the total amount of coarse material having the undesirable particle size characteristics produced by the battery.

    Speed of sound and/or density measurement using acoustic impedance

    公开(公告)号:US10088454B2

    公开(公告)日:2018-10-02

    申请号:US14387732

    申请日:2013-04-05

    Abstract: Apparatus is provided featuring a signal processor or signal processing module configured at least to: receive signaling containing information about a radiation impedance of a piston vibrating a process medium, including a fluid or slurry; and determine a speed of sound or density measurement related to the process medium, based at least partly on the signaling received. The signal processor or signal processing module may determine a speed of sound measurement related to the process medium, based on at least partly on the density of the process medium, including where the density of the process medium is known, assumed or determined by the signal processor or signal processing module, or determine a density measurement related to the process medium, based on at least partly on the speed at which sound travels in the process medium, including where the speed of sound of the process medium is known, assumed or determined by the signal processor or signal processing module.

    METHOD AND SYSTEM FOR FLOTATION SEPARATION IN A MAGNETICALLY CONTROLLABLE AND STEERABLE MEDIUM

    公开(公告)号:US20180155630A1

    公开(公告)日:2018-06-07

    申请号:US15782125

    申请日:2017-10-12

    Inventor: Alan D. KERSEY

    Abstract: The present invention provides new techniques related to magnetically controllable and/or steerable froth for use in separation processes of mineral-bearing ore and bitumen. Apparatus is provided featuring a processor configured to contain a fluidic medium having a material-of-interest and also having a surfactant with magnetic properties so as to cause the formation of a froth layer that contains at least some of the material-of-interest and is magnetically responsive; and a magnetic field generator configured to generate a magnetic field and provide non-mechanical mixing and steering/driving of the froth layer in the processor. The material-of-interest may be mineral-bearing ore particles or bitumen. The processor includes a flotation tank, a primary separation vessel (PSV), or a pipe, including a tailings pipeline. The pipe has a non-magnetic pipe section, and the magnetic field generator includes a magnetic coil arranged in relation to non-magnetic pipe section to generate the magnetic field and provide the non-mechanical mixing and steering/driving of the froth layer in the pipe.

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