Molten slag runner for blast-furnace plant
US4177974A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1978 |
| Grant date | Dec 11, 1979 |
| Priority date | — |
| Expiry date | Aug 10, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21B2400/072
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A runner extending from a blast furnace to a slag pit, water spray unit for manufacturing granulated slag or slag ladle is partly or wholly composed of a plurality of trough elements each made from copper or copper alloy. Each trough element comprises a hollow body having an inner space which is divided into sections by a plurality of partitions to define throughout the inner space of the body a series of passages in which a cooling medium is allowed to flow without stagnation. The cooling medium within the hollow body of the trough element is introduced under a predetermined pressure from a pipe line for supplying cooling medium into the body, whereby the cooling medium freely flows at a relatively high velocity in the passages defined by the partitions and molten slag glowing in contact with the surface of the trough element is cooled to a desired temperature which prevents wear and loss of the element and makes it possible to produce hard granulated slag from the molten slag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.