Mineral separation table
OwnerMatthew StJohninventor
Life of this patent
Estimating the term…
Abstract
Separating target particles from discard particles in an aggregate using tailored frequencies in a mineral separation table is described. The separation table comprises a planar surface angled in a −z direction along the +x axis at an angle α and in the −z direction along the +y axis at an angle β. A motor is responsive to a first or second vibration wave train received by a controller. The motor vibrates the table with the vibration wave train thereby separating target from discard particles by differences in specific gravity. The first vibration wave train is a plurality of primary half sine waves each followed by a pause. The second vibration wave train is the plurality of the primary half sine waves and a plurality of high frequency sine waves having a frequency that is higher than the primary half sine wave.
Claims20
A mineral separation arrangement comprising:
- a mineral separation table comprising a planar surface that is devoid of perforations, as defined in x/y/z coordinates the planar surface is angled along a central axis defined by angle α in a −z direction along the +x axis and angle β in the −z direction along the +y axis;
- an electric motor connected to the mineral separation table, the electric motor configured to vibrate the mineral separation table,
- the mineral separation table configured to separate first particles from second particles when the mineral separation table is driven by the vibration,
- the first and the second particles are from a concentrated aggregate,
- the first particles have a higher specific gravity than the second particles,
- the vibration corresponding to either a first wave train, a second wave train or a third wave train, wherein
- the first wave train defined by a plurality of first waveforms each comprising a primary half sine wave followed by a pause, the pause having a pause time that is less than 0.1 of a half sine wave time,
- the second vibration wave train comprising a plurality of second waveforms each having the primary half sine wave followed by a plurality of high frequency sine waves, the plurality of high frequency sine waves comprising a frequency that is higher than the primary half sine wave and the plurality of high frequency sine waves comprise an amplitude that is lower than the primary half sine wave,
- the third vibration wave train comprising a plurality of third waveforms each having the primary half sine wave at least partially superimposed with the plurality of high frequency sine waves;
- and
- a controller connected to the electric motor, the controller comprising an output vibration signal that corresponds to at least one of the first, the second or the third vibration wave trains.
A mineral separation device comprising:
- a mineral separation table comprising a planar surface that is angled in a −z direction along an +x axis at an angle α and in the −z direction along a +y axis at an angle β as defined in x/y/z coordinates;
- an electric motor configured to generate a vibration in the mineral separation table, the vibration is in a primary direction that is in plane with the planar surface,
- the vibration is configured to separate aggregate into first particles and second particles when on the mineral separation table,
- the vibration corresponds to a first vibration wave train defined by a plurality of primary half sine waves each followed by a pause, the pause having a pause time that is less than 0.15 of a half sine wave time or a second vibration wave train defined by the plurality of the primary half sine waves and a plurality of high frequency sine waves, the high frequency sine waves comprising a frequency that is higher than the primary half sine wave;
- and
- a controller configured to provide the vibration wave trains to the electric motor.
A mineral separation apparatus comprising:
- a mineral separation table defined in x/y/z axes:
- a planar surface of the mineral separation table angled in a −z direction along the +x axis at an angle α and in the −z direction along the +y axis at an angle β;
- a voice coil motor responsive to a first or second vibration wave train received by a controller,
- the vibration wave trains configured to cause the voice coil motor to generate a vibration corresponding to the vibration wave trains in the mineral separation table, which causes aggregate to separate by differences in specific gravity, the first vibration wave train defined by a plurality of primary half sine waves each followed by a pause, the pause having a pause time that is less than 0.15 of a half sine wave time,
- the second vibration wave train defined by the plurality of the primary half sine waves and a plurality of high frequency sine waves, the high frequency sine waves comprising a frequency that is higher than the primary half sine wave.
Dependencies are inferred from the claim text.