Method of repairing blast furnace wall lining
US4381856A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1982 |
| Grant date | May 3, 1983 |
| Priority date | — |
| Expiry date | Jul 9, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21B7/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In repairing lining damage in a blast furnace, the furnace is blown down after lowering the burden inside to below the damaged part. Then a plurality of openings and a refractories filling aperture are provided through the furnace wall in the damaged part. A preliminarily prepared panel is lowered down through an opening in the furnace top to a position opposite to the damaged part. One end of a string-like member whose other end is fastened to the panel is drawn outside the furnace through one of the openings. The whole length of the string-like member is protectively covered by a single or double support tube and stretched therethrough. Monolithic refractories are forced in through the refractories filling aperture into a clearance between the damaged part and panel either during blowing down or after blowing in.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.