Shaft furnace condition monitoring
US12071675B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2022 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | May 31, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2009/0062
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A shaft furnace, in particular a blast furnace, includes a metal jacket defining the furnace outer wall and a protective layer protecting the inner surface of the outer wall. At least one condition monitoring probe is arranged inside within the protective layer to monitor the latter. The condition monitoring probe is connected to a wireless module arranged outside the outer wall to transmit condition monitoring data. The wireless module is located inside a casing mounted to the outer surface of the metal jacket. The condition monitoring probe includes one or more conductive loops positioned at predetermined depths below the front face of the cooling plate body, or of the refractory lining, so that wear of the body, resp. refractory, can be detected by a change of an electrical characteristic of the loop(s) due to abrasion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.