An electrostatic filter unit for an air cleaning device includes an ionization unit for charging a particle contained in an air flow, a separation unit arranged downstream of the ionization unit in a direction of flow of the air, with the separation unit including at least two collecting electrodes which are air-permeable, and a protection element for at least one element of the ionization unit.

An electrostatic filter unit for an air cleaning device includes an ionization unit for charging a particle contained in an air flow, a separation unit arranged downstream of the ionization unit in a direction of flow of the air, with the separation unit including at least two collecting electrodes which are air-permeable, and a protection element for at least one element of the ionization unit.

A closed loop filtration system includes first and second trocars providing sealed access to a body cavity, a power supply, first and second ionizer units electrically coupled to the power supply, and a filter cartridge. The filter cartridge includes an inlet in communication with the first trocar, an outlet in communication with the second trocar, a first electrode disposed downstream of the inlet of the filter cartridge, and a second electrode disposed downstream of the first electrode. The first electrode is electrically coupled to the first ionizer unit to ionize airborne particulate matter flowing therethrough. The second electrode is electrically coupled to the second ionizer unit and configured to attract the airborne particulate matter that is ionized by the first electrode.

The invention provides an integrated separator system for the preconcentration of a material comprising one or more grizzly bars and one or more electrodes which provide a high voltage pulse (HVP) discharge to the material. The invention also provides a process for preconcentration of a material preferably a mineral within a rock which comprises: providing the material into an integrated separator system comprising one or more grizzly bars and one or more electrodes which are capable of providing at least one high voltage pulse discharge(s) to the material; applying one or more high voltage pulse discharge(s) to the material as the material is travelling along the grizzly bar(s) to preferentially disintegrate the particles containing mineral grains of high conductivity/permittivity; separating the disintegrated particles by way of the grizzly bar(s) resulting in the separation of the feed material into low grade (oversize) and high grade (undersize) products; and wherein the disintegrated particles from step b) pass through a screening element for further treatment. The present invention also relates to a process for comminution of a material.

The invention provides an integrated separator system for the preconcentration of a material comprising one or more grizzly bars and one or more electrodes which provide a high voltage pulse (HVP) discharge to the material. The invention also provides a process for preconcentration of a material preferably a mineral within a rock which comprises: providing the material into an integrated separator system comprising one or more grizzly bars and one or more electrodes which are capable of providing at least one high voltage pulse discharge(s) to the material; applying one or more high voltage pulse discharge(s) to the material as the material is travelling along the grizzly bar(s) to preferentially disintegrate the particles containing mineral grains of high conductivity/permittivity; separating the disintegrated particles by way of the grizzly bar(s) resulting in the separation of the feed material into low grade (oversize) and high grade (undersize) products; and wherein the disintegrated particles from step b) pass through a screening element for further treatment. The present invention also relates to a process for comminution of a material.

An air filtering device is provided, including: a plurality of metal nets, arranged in interval in a filtering path, respectively connected to a pole of at least one high-voltage power source to provide electric fields, adjacent two of the plurality of metal nets having opposite polarities; wherein at least one of the plurality of metal nets is of an electric characteristic which is time-variant relative to a constant reference level so that the electric field of the at least one of the plurality of metal nets is time-variant.

An air filtration system having a housing. The housing has an inlet, a frame unit, a filter unit, and an outlet. A fan is positioned in the air filtration system or not, and pulls or pushes air into the inlet, and through the outlet, and has the air pass through the filter unit. The filter unit has a first and a second expanded metal metallic plate. The first plate has a first plurality of apertures, and the second plate a second plurality of apertures. Each plate has a coated layer of a dielectric conducting and antimicrobial agent polymer material. The frame unit secures the first expanded metal metallic plate at a first position in the housing, the second expanded metal metallic plate at a second position in the housing, and ensures, when the first and second expanded metal metallic plates are securely positioned in the housing, that the first expanded metal metallic plate is adjacent to the second expanded metal metallic plate and wherein a portion of the first expanded metal metallic plate contacts or is within 20 millimeters from the second expanded metal metallic plate and each aperture of the second plurality of apertures misaligns with an aperture of the first plurality of apertures.

An electrostatic dust collection apparatus and an air purifier including such the electrostatic dust collection apparatus are provided. The electrostatic dust collection apparatus of the invention includes a sheet collection electrode, an insulative bearing member and a plurality of discharge electrodes. A first surface of the sheet collection electrode faces and is parallel to a second surface of the insulative bearing member. A plurality of grooves are formed on and across the second surface of the insulative bearing member, and are parallel to one another. Each discharge electrode corresponds to one of the grooves, and is disposed in the corresponding groove. An air passage is defined between the sheet collection electrode and the insulative bearing member, and allows an air to be treated to pass through. The discharge electrodes charge a plurality of floating particles in the air to be treated. The sheet collection electrode collects the charged particles.

Precipitator unit of a two-stage electro filter where air to be cleaned from electrically charged particles is intended to flow through the unit. Said unit comprising at least two cylindrical precipitators (10, 11) that each comprise at least two electrode elements arranged at a gap distance from each other. Each one of the precipitators (10, 11) is also intended to be connected to a high voltage source. The respective electrode elements of a precipitator (10, 11) are connected to different poles of the high voltage source. The main planes of the precipitators (10, 11) are axially spaced in the air flow direction and a cone shaped duct (21) extends between the circumference of the first precipitator (10) and a center opening (13) of the second precipitator (11). A first amount of polluted air flows across the area of the first precipitator (10) and continues afterwards through the inside of the cone shaped duct (21) and out of the unit through the center opening (13) of the second precipitator (11). A second amount of polluted air flows outside the circumference of both the first precipitator (10) and the cone shaped duct (21) in order to be cleaned by the second precipitator (11).

The present invention discloses a low temperature plasma air purifier with high speed ion wind self-adsorption, which comprises a power module releasing a high-voltage direct current, a housing functioning as a support, an emitter electrode generating a strong ionization field, and a dust collecting electrode adsorbing various particles, wherein the emitter electrode comprises one or more needle-like conductors, circular holes fitted with each of the needle-like conductors are provided on the dust collecting electrode. The present invention has a simple structure and a small size, and realizes a high purification speed without the assistance of fans. The porous metal structure of the dust collecting electrode increases the contact area for air purification so that the dust collecting electrode has a strong adsorbability, which ensures a good air purification effect.