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Triboelectric Separator With Mixing Chamber And Pre-Separator, John M. Stencel, John L. Schaefer, Heng Ban, James K. Neathery, Tianxiang Li

Center for Applied Energy Research Faculty Patents

A triboelectrostatic separation apparatus includes a mixing chamber having opposed first and second charging ports, a separator having a separation chamber, first and second electrodes, and a variable voltage source for applying respective positive and negative voltage potentials to the electrodes. First and second particle streams are delivered through the first and second charging ports resulting in the impingement of the particle streams upon each other within the mixing chamber, thus enhancing the electrostatic charging of the particles contained within the particle streams. The apparatus may also include a pre-separator having a pre-separation chamber, a charged particle collection chamber and …