Electrostatic precipitator and self cleaning collection belt therefor

• US 8,506,687 B2
• Filed: 04/28/2010
• Issued: 08/13/2013
• Est. Priority Date: 04/28/2009
• Status: Active Grant

• Current Assignee: Cambridge International, Inc. (Regal Rexnord Corp.)
• Original Assignee: Cambridge International, Inc. (Regal Rexnord Corp.)
• Inventors: Jones, Chetwyn
• Primary Examiner(s): Chiesa, Richard L
• Application Number:
  US12/769,035
• Publication Number:
  US 20100269699A1
• Time in Patent Office: 1,203 Days
• Field of Search: 96/39, 96/40, 96/42, 96/51, 96/94, 96/43, 96/50, 552/90, 55295-297, 553/51, 553/54, 554/00, 198851-853
• US Class Current: 96/40
• CPC Class Codes: B03C 3/45 Collecting-electrodes
• CPC Class Codes: B03C 3/47 flat, e.g. plates, discs, gratings
• CPC Class Codes: B03C 3/743 by using friction, e.g. by brushes or sliding elements
• CPC Class Codes: Y02A 50/2351 Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

Abstract

An electrostatic precipitator for removing a particulate material includes a housing having an internally formed air path communicating between an inlet for drawing polluted air containing particulate material and an air outlet for emitting clean air purified by removing the particulate material, an air stream generator that generates an air stream, a discharging mechanism that charges the particulate material, and a collection device provided in the air stream to collect the particulate material which has been charged by the discharging mechanism. The collection device includes a collection belt including a flat wire belt defining a three-dimensional collection surface. The precipitator further includes a brush and vacuum assembly for removing the particulate material and reducing the risk of reentrainment in the air stream.

Claims

1. An electrostatic precipitator for removing a particulate material, comprising:

a housing having an internally formed air path communicating between an inlet for drawing polluted air containing particulate material and an air outlet for emitting clean air purified by removing the particulate material;

an air stream generating means that generates an air stream;

a discharging means that charges the particulate material;

a collection device provided in the air stream to collect the particulate material which has been charged by the discharging means, said collection device including a collection belt;

wherein said collection belt comprises a continuous flat wire belt defining a three-dimensional collection surface.

2. The electrostatic precipitator according to claim 1, further comprising a brush and vacuum assembly for removing the particulate material and reducing the risk of reentrainment in the air stream.

3. The electrostatic precipitator according to claim 2, wherein said brush comprises a rotary brush.

4. The electrostatic precipitator according to claim 3, wherein said rotary brush is stationary.

5. The electrostatic precipitator according to claim 3, wherein said rotary brush is rotatable.

6. The electrostatic precipitator according to claim 1, wherein said discharging means comprises a plurality of electrodes.

7. The electrostatic precipitator according to claim 1, wherein said discharging means comprises at least one high voltage line.

8. The electrostatic precipitator according to claim 1, wherein said flat wire belt comprises a plurality of spaced tractive rods and a plurality of rows of wickets interconnecting said plurality of spaced tractive rods.

9. The electrostatic precipitator according to claim 8, wherein each said row of wickets includes a plurality of links.

10. The electrostatic precipitator according to claim 9, wherein said plurality of links have a depth between 0.188″

-0.500″

, thereby defining said three-dimensional collection surface.

11. The electrostatic precipitator according to claim 1, wherein said collection belt is continuously rotatable about opposed sprockets.

12. The electrostatic precipitator according to claim 11, wherein said opposed sprockets are mounted on opposing shafts.

13. An electrostatic precipitator for removing a particulate material, comprising:

a housing having an internally formed air path communicating between an inlet for drawing polluted air containing particulate material and an air outlet for emitting clean air purified by removing the particulate material;

an air stream generating means that generates an air stream;

a discharging means that charges the particulate material;

a collection device provided in the air stream to collect the particulate material which has been charged by the discharging means, said collection device including a collection belt;

wherein said collection belt comprises a flat wire belt defining a three-dimensional collection surface, said flat wire belt having a plurality of collection surfaces defined in a thickness dimension of said flat wire belt disposed generally perpendicular to a direction of travel of said collection belt, said collection surfaces of said flat wire belt defining a surface area greater than a surface area of said flat wire belt defined in a direction parallel to the direction of travel of said collection belt.

14. The electrostatic precipitator according to claim 13, further comprising a brush and vacuum assembly for removing the particulate material and reducing the risk of reentrainment in the air stream.

15. The electrostatic precipitator according to claim 14, wherein said brush comprises a rotary brush.

16. The electrostatic precipitator according to claim 15, wherein said rotary brush is stationary.

17. The electrostatic precipitator according to claim 15, wherein said rotary brush is rotatable.

18. The electrostatic precipitator according to claim 13, wherein said discharging means comprises a plurality of electrodes.

19. The electrostatic precipitator according to claim 13, wherein said discharging means comprises at least one high voltage line.

20. The electrostatic precipitator according to claim 13, wherein said flat wire belt comprises a plurality of spaced tractive rods and a plurality of rows of wickets interconnecting said plurality of spaced tractive rods.