US 12,303,913 B2
Electrostatic separator
Oliver Schmitz, Mönchengladbach (DE)
Appl. No. 17/912,551
Filed by Oliver Schmitz, Mönchengladbach (DE)
PCT Filed Mar. 18, 2021, PCT No. PCT/DE2021/100276
§ 371(c)(1), (2) Date Sep. 19, 2022,
PCT Pub. No. WO2021/185418, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 10 2020 107 419.0 (DE), filed on Mar. 18, 2020.
Prior Publication US 2023/0140445 A1, May 4, 2023
Int. Cl. B03C 3/47 (2006.01); B03C 3/08 (2006.01); B03C 3/12 (2006.01)
CPC B03C 3/47 (2013.01) [B03C 3/08 (2013.01); B03C 3/12 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An electrostatic separator (10) through which a stream of particles in an air flow to be cleaned flows in a longitudinal direction, comprising:
a spray ionization source which is arranged within the air flow or multiple spray ionization sources (18a-d) which are arranged within the air flow in a matrix-like manner, which spray ionization source(s) is or are applied by a positive electric ionizer potential,
a collector unit (12) arranged downstream of the at least one spray ionization source (18a-d) for particle deposition, having a plurality of electrically conductive collector and driver plates (38, 40), which are arranged substantially in parallel and through which the air flow flows and which are alternated respectively with an electrically negative collector potential or an opposite positive driver potential, and
at least one border counter-electrode (14a-d), each of which is associated with one of the one or more spray ionization sources (18a-d),
wherein the at least one spray ionization source (18a-d) is approximately point-shaped, and
wherein the at least one border counter-electrode is arranged in a longitudinal direction between the associated spray ionization source (18a-d) and the collector unit (12) and at a longitudinal distance from the associated spray ionization source (18a-d), and has electrically conductive walls (30, 32) which extend substantially in a longitudinal flow direction and which delimit a flow channel upstream of the respective spray ionization source (18a-d) on all circumferential sides or at least in circumferential partial sections,
wherein the electrically conductive walls (30, 32) of the at least one border counter-electrode (14a-d) are applied by a negative border counter-electrode potential directed opposite the ionizer potential, and
wherein the spray ionization source (18a-d) is centrally arranged with respect to a contour of the respectively associated border counter-electrode (14a-d) in a transverse plane.