Abstract: The present disclosure discloses a plasma purification device for purifying catering oil fume and a method for purifying catering oil fume, relating to the technical field of atmospheric pollution control. The plasma purification device successively includes in a flow direction of airflow an inlet, a rotary discharge module configured to negatively charge oil fume particulate matter with a particle size between 2 ?m and 50 ?m in the catering oil fume; an electrostatic adsorption module configured to capture negatively charged oil fume particulate matter; a back corona catalytic module configured to treat VOCs in the catering oil fume; and an outlet. The rotary discharge module includes a central rod arranged parallel to the flow direction of airflow and a plurality of barbed corona electrodes arranged around the central rod.

Abstract: The aerosol particulate matter collecting device includes a shell, a first electric field component, a second electric field component and the collection unit. The first electric field component is connected to the shell and forms a first electric field area, the second electric field component is connected to the shell and forms a second electric field area, the second electric field component includes a first plate and a second plate, and the electric property of the first plate is opposite to that of the first electric charges; a bottom plate of the collection unit is located between the first plate and the second plate, protrusions are arranged on the bottom plate, a flow channel for accommodating collecting liquid is formed in the bottom plate, the protrusions are configured to enable the flow channel to extend along a curve.

Abstract: The present invention relates to a dual-purpose circulating purifier, including a housing, an oil fume purification device, a fresh air supply device, and a double-wing baffle device, where the oil fume purification device includes a fume suction opening, a first air outlet, a grease separator, a fume suction cavity, a first fan, a fume purification chamber, and a fume purification filter layer; the fresh air supply device includes an air suction opening, a second air outlet, a dust blocker, an air suction cavity, a second fan, a gas purification chamber, and a gas purification filter layer; and the double-wing baffle device includes a first baffle and a second baffle. The dual-purpose circulating purifier can purify indoor oil fumes, and also provide purified fresh air to the indoors, greatly improving air quality.

Abstract: Disclosed is technology and device for uniform distribution of water film on solid collecting plate used on a wet electrostatic precipitator (ESP). The device includes clamping plate fastening bolts, suspended clamping plates, a water distribution pipe, guide vanes, collecting plate, a limiter, a two-way limited fixed axis and a double arming bolt. The surfaces of the solid collecting plate are subjected to coating pretreatment, the upper parts of the collector are connected with the water distribution pipe, and the 45° guide vanes are twisted; a corrugated diversion with the width of 5 to 8 mm is adopted; stainless steel pipes are crosswise welded, water distribution holes are formed at the water distribution pipe, the distribution pipe is connected with an external water tank, and the inlet quantity of the water is controlled by a PLC; the collectors are placed vertically, and the ESP contains a set of sharp discharge electrodes.

Abstract: A device for collecting particles that have a high electron affinity, particularly explosive particles, from a gas, includes a flow channel (12a) in which at least one electrically positive collector electrode (20a) and at least one ionising electrode (18a) are arranged, between which an electrical field is present so that the particles having high electron affinity can be indirectly charged by corona discharge on the ionising electrode (18a) and can be displaced towards the collector electrode (20a).

Abstract: A free radical injection ionizer for flue gas treatment with corona discharge includes an injection device for releasing free radical source substances and an electrode device for producing corona, wherein the injection device and the electrode device are arranged separately, wherein the electrode device includes a conductive pole, and discharge tips arranged on the upper and lower sides of the conductive pole at equal intervals, and the injection device includes nozzles symmetrically arranged on two sides of the electrode device, and two lines of holes axially arranged on the walls of the nozzles nearby the electrode device, the axial lines of the holes directing the discharge tips nearest the holes.

Abstract: A device for collecting particles in air comprising a collecting chamber (4), a capillary tube (12) whereof one end (12.1) terminates in the chamber (4), a collecting electrode, the capillary tube (12) containing polarisable liquid. Sufficient difference in voltage is applied between the liquid and the collecting electrode (16) for a corona effect between the drop of liquid at the end of the capillary tube (12) and the collecting electrode (12) and the spraying of the drop (20) by electrospray. The corona discharge causes flow of air through the collecting chamber (4) and the electrospray ensures wetting of the collecting electrode (16).

Abstract: A wet electrostatic precipitator (ESP) is disclosed to have a housing, several discharge wires, two roughened collection electrodes coated with TiO2 or SiO2 nanoparticles, two porous metallic plates, and two roughened glass plates coated with TiO2 or SiO2 nanoparticles. The porous metallic plates and the glass plates coated with TiO2 or SiO2 nanoparticles located above the collection electrodes are used to enhance the uniformity of the water film. When particles are introduced into the ESP, they are charged by gas ions generated by corona discharge, and then migrate to collection electrodes due to electrostatic force. Finally, particles are removed by uniform water film flowing downward along the collection electrodes. Furthermore, pulse jet passing through the small holes on the collection plates is used to clean discharge wires, maintaining electric corona strength and prolonging the operation life.

Abstract: Apparatus for reducing pollution from a flare stack includes a platform disposed on or near the top of the flare stack and a plurality of baffles and filters disposed on the platform. A first plurality of upwardly extending stainless steel baffles is disposed around the flare stack while a second plurality of baffles is disposed about the outer periphery of the platform. A first and a second plurality of filters are disposed between the first and second plurality of baffles. The first plurality of filters associated with a fan, blower or pump for drawing flare gas into and out of the filter.

Abstract: A wet electrostatic precipitator is disclosed to include a condensation-growth chamber, a precipitation chamber connecting with the condensation-growth chamber, three dual-sleeve members mounted in the precipitation chamber, three discharge electrodes connecting with the dual-sleeve members, two insulating members covering on the inner surface of the precipitation chamber, and two ground electrodes mounted on the outside of the precipitation chamber. Thus, a uniform water film is formed on the surface of the insulating members to wash away the particles from waste gas. The condensation-growth chamber is provided for the particles to grow therein and thereby enhances the collection efficiency. The insulating member acts as a shield between the discharge electrodes and the ground electrodes and thereby avoids a short circuit or sparks.

Abstract: Porous polymeric membranes formed from a hydrophobic polymer, such as halar having membrane pores of a size sufficient to permit gas and/or vapor permeation 0.05 ?m to 5 ?m without permitting the flow of a hydrophilic fluid across the membrane. Pore distribution is uniform and porosity is high, in some cases up to 80%. Membranes may be in the form of a flay sheet or hollow fibre for example and can be used in a variety of applications such as stripping HF gas, degassing of caustic solution, chlorine gas/alkaline filtration, degassing tap water to remove dissolved chlorine. Processes used to make such membranes can be carried out using relatively non toxic solvents such as citric acid ethyl ester or glycerol triacetate.

Abstract: An apparatus for removing particulate matter from a gas stream containing particulate matter, the apparatus including: a mist-producing element that mixes a gas stream entering the apparatus with liquid droplets; and a down flow Wet Electrostatic Precipitator (WESP) pass section having ionizing electrodes that electrically charge the particulate matter and the intermixed liquid droplets, and collecting surfaces in the form of an array of polygonal tubes, wherein the collecting surfaces are under the influence of an electrical field to attract and remove electrically-charged particulate matter and intermixed liquid droplets from the gas stream. An embodiment utilizing two down-flow Wet Electrostatic Precipitator (WESP) sections (i.e.

Abstract: An apparatus for removing particulate matter from a gas stream containing particular matter, the apparatus comprising: a mist-producing element that mixes a gas stream entering the apparatus with liquid droplets; a down-flow Wet Electrostatic Precipitator (WESP) section comprising ionizing electrodes that electrically charge the particulate matter and the intermixed liquid droplets, and collecting surfaces under the influence of an electrical field which attract and remove electrically-charged particulate matter and intermixed liquid droplets from the gas stream; and an up-flow WESP section comprising electrically-charged ionizing and collecting electrodes that remove, from the gas stream, substantially all fine-sized droplets generated in the down-flow WESP section.

Abstract: An apparatus for removing particulate matter from a biomass combustion gas stream, the apparatus having a mist-producing element that mixes a gas stream entering the apparatus with liquid droplets; a Wet Electrostatic Precipitator (WESP) section that includes ionizing electrodes that electrically charge the particulate matter and the intermixed liquid droplets and collecting surfaces under the influence of an electrical field which attract and remove electrically-charged particulate matter and intermixed liquid droplets from the gas stream; and a scrubbing section that provides for additional scrubbing of the gas.

Abstract: Disclosed are systems and methods for removing electrically-conductive contaminants entrained in airstream. The airstream is preferably redirected to separate the electrically-conductive contaminants from the airstream. The separated electrically-conductive contaminants may then be oxidized.

Abstract: Device for the precipitation of carbon particles present in exhaust gases having a voltage generator whose poles are connected with at least one electrode and the shell comprising separate internal zones where the following phenomena take place mixing of exhaust gas with air in a first zone, ionization in a second zone of the gas & air mixture coming from said first zone, ignition and precipitation in a third zone of said carbon particles present in said gas & air mixture coming from said second zone, and exhaust of the gas in which said carbon particles have been precipitated.