Abstract:
The embodiments described herein improve on the present electrostatic precipitator method of using parallel plates to collect particulates by using multiple parallel vanes set at operating parameters described below. By using vanes, the main entrained air is subdivided and directed to flow between vanes that induce resistance to flow allowing charged particles to collect on the vanes. The width of the vane is designed to be wide enough so the air flow rate at the ends of the vanes is less than 1 ft/s, allowing particles discharged from the plates to fall by gravity and in the direction of very low air flow, resulting in extremely low re-entrainment and efficient particle collection. Using vanes also allows for higher operating air velocities resulting in a smaller equipment foot print.
Abstract:
An air treatment device having a plasma generator electrostatic precipitator assembly, is provided. The assembly includes an electrostatic precipitator configured to charge airborne particles in the vicinity of the electrostatic precipitator to provide charged airborne particles, and a plasma generator positioned in proximity to the electrostatic precipitator and configured for cooperation with the electrostatic precipitator. The plasma generator is configured to discharge plasma and provide an inactivation zone in the region of the plasma generator operable to inactivate airborne particles. The air treatment device includes means for directing the charged airborne particles generated by the electrostatic precipitator into the inactivation zone such that the air treatment device is adapted to generate charged airborne particles and then immediately, to direct the charged airborne particles into the inactivation zone so as to expose the charged airborne particles to plasma in the inactivation zone.
Abstract:
A sinter plant gas cleaning system includes a fabric filter device for removing dust particles from a process gas drawn from a sinter strand of a sinter plant. A duct is adapted to allow the process gas drawn from the sinter strand to pass by the fabric filter device. A measurement device measures a concentration of organic compounds of the process gas drawn from the sinter strand. A control system receives a signal from the measurement device and controls the flow of process gas through the duct.
Abstract:
A discharge electrode using carbon fibers, nanofibers and/or nanotubes to generate the corona discharge. The invention contemplates carbon fiber electrodes with or without a polymer matrix to form a composite, and a supporting configuration in which the fibers are wrapped helically around a supporting rod that extends along the length of the electrode. Another supporting configuration includes the fibers stretched across the gas flow path. Yet another supporting configuration includes mounting the fibers along the length of the support rod substantially parallel to the rod.
Abstract:
A wet-type electric dust collection device and low-concentration SO3 mist containing, in which the wet-type electric dust collection device has an electrical field formation part in which a plurality of discharge electrodes are provided on opposing surfaces of a first electrode and second electrodes for forming a DC electrical field. The discharge electrodes of the first electrode and the discharge electrodes of the second electrodes generate corona discharges that are reversed in polarity relative to each other. The gas containing the SO3 mist and the dust is guided to the electrical field formation part without electrically charging the SO3 mist and the dust or spraying a dielectric in the gas, and while the gas flows between the electrodes, the corona discharges impart electric charges of alternately reversed polarity to the SO3 mist and the dust. The first electrode and the second electrodes collect the charged SO3 mist and dust.
Abstract:
Provided are a gas purification device and system. The device comprises a gas purification unit; the gas purification unit comprises at least one ionization electrode, at least one repelling electrode and at least one collector; the at least one repelling electrode is provided with electrical potential in the same direction as the electrical potential of the at least one ionization electrode; in the at least one collector is provided with either zero potential or electrical potential in an opposite direction compared with the electrical potential of the at least one ionization electrode; the at least one repelling electrode is used to push the electrified gas particles ionized by the at least one ionization electrode to the at least one collector. In the present invention, the repelling electrode provided with electrical potential in the same direction as the electrical potential of the ionization electrode pushes the electrified gas particles back to the collector, thus causing some of the electrified gas particles deviating from the collector to be pushed to the collector for adsorption. Therefore, the present invention employs a three-electrode structure to improve the adsorption capacity for particles such as dust, and further improve gas purification efficiency.
Abstract:
A wet electrostatic precipitator includes an electric field forming unit including a first electrode and a second electrode which form an alternating electric field. The first electrode is a flat plate, and has a plurality of discharge electrodes on a surface that opposes the second electrode. The second electrode includes a discharge frame, a first flat plate portion and a second flat plate portion. The first flat plate portion opposes the discharge electrode of the first electrode. A plurality of discharge electrodes are formed on a surface of the second flat plate portion that opposes the first electrode. The discharge electrodes alternately generate corona discharges having opposite polarities in a direction perpendicular to a flow direction of gas, and alternately apply charges having opposite polarities to mist and dust. The first electrode and the first flat plate portion trap the charged mist and the dust.
Abstract:
The invention provides a gas purification system, for instance for agricultural application comprising a corona discharge system, the corona discharge system comprising a counter electrode, a conductive strip with a longitudinal edge comprising tooth structures, wherein the tooth structures have tooth tops with shortest distances selected from the range of 2-200 mm; and a voltage generator configured to apply a DC voltage of at least 10 kV to the conductive strip.
Abstract:
Apparatus for treating gas comprises a casing (100) containing a gas scrubber section (118) and an electrostatic precipitator section (120) located above the scrubber section. A partition (136) may be located within the casing (100) to separate the precipitator section (120) from the scrubber section (118). The casing has a gas inlet (102) for supplying gas to the scrubber section, a gas outlet (104) for exhausting gas from the precipitator section, a scrubbing liquid inlet (106) for supplying scrubbing liquid to the precipitator section, and a scrubbing liquid outlet (126) for draining scrubbing liquid from the scrubber section. In one embodiment the partition comprises a set of apertures (138) through which scrubbing liquid drains from the precipitator section into the scrubber section, and a set of gas passages (140) for conveying gas from the scrubber section to the precipitator section.
Abstract:
The present invention provides methods and systems for a bipolar ionization device that includes an electrically insulated base, a power input terminal, an anode engaged to the base and the power input terminal, a cathode that partially circumscribes the anode, and plurality of tines extending perpendicularly from the anode having a lower portion and a top portion, wherein the lower portion is engaged to the anode and is wider than the top portion.