# US 9,039,815 B2 · Vane electrostatic precipitator

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- Number: US 9,039,815 B2
- Document ID: US9039815B2
- Status: Granted
- Kind: B2
- Application number: 13/792,408
- Filed: 2013-03-11
- Published: 2013-07-25
- Granted: 2015-05-26
- Earliest claimed: 2011-08-10
- Applicants: John P. Dunn
- Inventors: John P. Dunn
- Web page: https://patentgrep.com/patent/US9039815B2

## CPC

- B03C 3/47: flat, e.g. plates, discs, gratings
- B03C 3/41: Ionising-electrodes
- B03C 3/45: Collecting-electrodes
- B03C: MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS (separating isotopes B01D59/00; combinations of magnetic or electrostatic separation with separation of solids by other means B03B, B07B)

## Abstract

Vane electrostatic precipitators preferably have the leading edges of the vanes directly opposite the discharge electrodes, and/or the distance between the discharge electrode and the leading edge of the vane electrode is less than the distance between the discharge electrodes improves the collection process. These designs improve collection efficiency of the vane electrostatic precipitators.

## Claims

### Claim 1

A method for removing particles from at least one main narrow air stream using a vane electrostatic precipitator, comprising the step of:
collecting the particulates using an electrical field established between a leading edge of a plurality of vane electrodes and a plurality of discharge electrodes of the vane electrostatic precipitator,
wherein the vane electrostatic precipitator comprises the plurality of vane electrodes and the plurality of discharge electrodes in proximity to the leading edge of the vane electrodes, wherein a distance between the leading edge of the vane electrodes and the discharge electrode is less than a distance between adjacent discharge electrodes.

### Claim 2 (depends on 1)

The method of claim 1, wherein the vane electrostatic precipitator comprises the plurality of vane electrodes and the plurality of discharge electrodes in proximity to the leading edge of the vane electrodes, wherein a ratio between a number of vane electrodes and a number of discharge electrodes in at least one vane assembly is less than 2:1.

### Claim 3 (depends on 1)

The method of claim 1, wherein the ratio between the number of vane electrodes and the number of discharge electrodes in at least one vane assembly is approximately 1:1.

### Claim 4

A vane electrostatic precipitator comprising a plurality of vane electrodes, each vane electrode comprising a leading edge, and a plurality of discharge electrodes, wherein a distance between the leading edge of the vane electrodes and the discharge electrode is less than the distance between adjacent discharge electrodes.

### Claim 5 (depends on 4)

The electrostatic precipitator of claim 4, wherein a ratio between a number of vane electrodes and a number of discharge electrodes in at least one vane assembly is less than 2:1.

### Claim 6 (depends on 4)

The electrostatic precipitator of claim 4, wherein the ratio between the number of vane electrodes and the number of discharge electrodes in at least one vane assembly is approximately 1:1.

### Claim 7

A method for removing particles from at least one main narrow air stream, using a vane electrostatic precipitator, comprising the step of:
collecting the particulates using an electrical field established between a leading edge of a plurality of vane electrodes and a plurality of discharge electrodes of the vane electrostatic precipitator,
wherein the vane electrostatic precipitator comprises the plurality of vane electrodes and the plurality of discharge electrodes in proximity to the leading edge of the vane electrodes, wherein a ratio between a number of vane electrodes and a number of discharge electrodes in at least one vane assembly is less than 2:1.

### Claim 8 (depends on 7)

The method of claim 7, wherein the ratio between the number of vane electrodes and the number of discharge electrodes in the at least one vane assembly is approximately 1:1.

### Claim 9

A vane electrostatic precipitator comprising a plurality of vane electrodes, each vane electrode comprising a leading edge, and a plurality of discharge electrodes, wherein a ratio between a number of vane electrodes and a number of discharge electrodes in at least one vane assembly is less than 2:1.

### Claim 10 (depends on 9)

The electrostatic precipitator of claim 9, wherein the ratio between the number of vane electrodes and the number of discharge electrodes in the at least one vane assembly is approximately 1:1.