Corrosion resistant electrostatic precipitator
US4077785A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 1977 |
| Grant date | Mar 7, 1978 |
| Priority date | — |
| Expiry date | May 9, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/38
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A corrosion resistant electrostatic precipitator has an array of tubular collector electrodes with a cylindrical casing, the tubular collector electrodes and casing each having a surface resistivity of the order 10.sup.6 ohms. The walls of the collector tubes, in preferred form, are a lamina comprising, in order from the inner surface outwardly, an innermost resin impregnated with graphite followed by a conductive metal mesh, another layer of resin impregnated with graphite, a fiberglass veil (corrosion resistant barrier), a layer of fiberglass mat, a layer of fiberglass roving, another layer of fiberglass mat, another layer of fiberglass roving, and finally an outer layer of fiberglass mat. The wall of the cylindrical casing is also a lamina whose make-up is generally similar but not identical to the walls of the collector tubes. Means are provided for grounding the conductive metal mesh which is embedded in the collector walls and in the casing wall. In a preferred form, the metal mesh in the walls of the collector tubes is a 2-inch wide band wound helically on 6-inch centers, while the helically wound mesh in the wall of the casing is on 12-inch centers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.