Electrostatic precipitating apparatus and method

Abstract

Abstract ELECTROSTATIC PRECIPITATING APPARATUS AND METHOD WHEREIN THE APPARATUS INCLUDES A TUBULAR DUCT THROUGH WHICH A GAS STREAM IS PASSED, A CONVERTER WITHIN THE DUCT FOR CONVERTING GASEOUS PALLUTANTA INTO ENTRAINED PARTICLES, A CHARGING MEANS WITHIN THE DUCT DOWNSTREAM OF THE CONVERT FOR IMPOSING AN ELECTRICAL CHARGE OF PREDETERMINED POLARITY ON THE ENTRAINED PARTICLES, AND ASEPARATING SECTION WITHIN THE DUCT DOWNSTREAM OF THE CHARGING MEANS FOR SEPARATING THE ENTRAINED ELECTRICALLY CHARGED PARTICLES FROM THE GAS STREAM. ONE EMBODIMENT OF THE SEPARATING SECTION INSLUDES AN ENTRY GRID INTERSECTING THE PATH OF GAS FLOW WOTH A CHARGE THEREON OF OPPOSITE POLARITY WITH RESPECT TO THE CHARGE ON THE PARTICLES, AN EXIT GRID DOWNSTREAM OF THE ENTRY GRID WITH A CHARGE THEREON OF THE SAME POLARITYY AS THE CHARGE ON THE PARTICLES, AND THAT PORTION OF THE DUCTWALL BETWEEN THE GRID HAVING A CHARGE THEREON OF OPPOSITE POLARITY TO THE CHARGE ON THE PARTICLES. ANOTHER EMBODIMENT OF THE SEPARATING SECTION ADDS ADDITIONAL EXIT GRIDS TO THE ABOVE EMBRODIMENT SPACED DOWMSTREAM FROM THE FIRST EXIT GRID AND FROM EACH OTHER WITH EACH OF THE ADDITIONAL EXIT GRIDS HAVING A CHARGE THEREON OF THE SAME POLARITY AS THAT ON THE PARTICLES BUT WITH A GREATER POTENTIAL THAN THE NEXT ADJACENT UPSTREAM EXIT GRIS, AND WITH THE DUCT WALL BETWEEN EACH ADJACENT PAIR OF EXIT GRIDS HAVING A CHARGE THEREON OF OPPOSITE POLARITY TO THE CHARGE ON THE PARTICLES. THE METHOD IS THAT CARRIED OUT BY THE ABOVE APPARATUS.

Inventors

• 👤 A Huang
• 👤 A Ducoffe

Bibliographic Details