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US 2012/0067214 A1Published application
Process of Electrostatic Recirculation for Dedusting and Gas Cleaning and Device Thereof
OwnerRomualdo Luis Ribera Salcedoinventor
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OwnerRomualdo Luis Ribera Salcedoinventor
Estimating the term…
Cyclones with electrostatically enhanced recirculation, comprising a collector cyclone and an entry for dirty gases, located upstream from a recirculator and a central exhaust channel (CEC) for exhausting cleaned gases. Cyclones are placed in series and have a recirculation line from the concentrator to the collector to recirculate part of the gas stream. Recirculator has means for applying a high voltage producing an ionizing electric field driving particles away from CEC, without significant particle deposition on recirculator walls. Current density in the recirculator field is below 0.1 mA/m.2 Average electric field is below 2×I05 V/m. Particles are driven away from CEC in the recirculator by joint action of mechanical/electrical forces, the latter deriving from particles traversing the ionized field, concentrating them in the fraction of gas stream recycled back to the collector cyclone, where a part is captured. Uses include dedusting, dry gas cleaning (for acid gases), and capturing bacteria.
Cyclones with electrostatic recirculation for dedusting and dry gas cleaning, comprising a reverse-flow collector cyclone (Col) upstream from a straight-through concentrator cyclone (Con) having one central channel for cleaned gas exhaustion (GL), these cyclones being placed in series and having a recirculation line from the concentrator to the collector, for a fraction of the gas to be treated, characterized in that, in the recirculator, there are electrical means for applying high voltage (AT) to form an ionized electric field imparting a charge on the particles inside the recirculator, making them travel away from the central exhaust channel, but without any significant particle deposition on the recirculator walls.
Dedusting process of a gaseous stream, where such stream first enters a reverse-flow cyclone collector (Col), where part of the particles of such gaseous stream are captured (P) and then enters a straight-through concentrator cyclone (recirculator, Con), having a central channel for the exhaust of cleaned gases (GL), and where part of the particles remaining in the gas stream are concentrated and recirculated with part of the gas back to said collector cyclone, characterized in that the particles in the recirculator (Con) are directed away from the central exhaust channel by the joint action of mechanical (inertial) and electrical forces, where these last ones are produced by the particles traversing a high voltage ionized electric field, thus providing the particles concentration, without any appreciable deposition on the concentrator walls, in the gas recycled back to the cyclone collector where part of the recirculated particles are captured.
Dependencies are inferred from the claim text.