Inspection hole structure for flash-smelting furnace
US7871559B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Sep 24, 2008 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Sep 24, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D21/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An inspection hole structure 1 forming a furnace inspection hole 2 installed on the reaction shaft ceiling 104 of a flash smelting furnace, comprising a lower-stage water-cooling jacket 3A having an opening 3Aa at the center; an upper-stage water-cooling jacket 3B which is connected integrally to an upper part of said lower-stage water-cooling jacket 3A and forms said inspection hole 2 at the center in cooperation with said lower-stage water-cooling jacket 3A; and a bottom cover water-cooling jacket 4 provided in said lower-stage water-cooling jacket 3A to open or close said opening of said lower-stage water-cooling jacket 3A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.