Discharge nozzle assembly and methods of formation and operation thereof
US4708327A · kind A · utility
7Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 1986 |
| Grant date | Nov 24, 1987 |
| Priority date | — |
| Expiry date | Mar 13, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D41/42
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A discharge nozzle assembly for discharging molten metal from a metallurgical vessel includes a refractory nozzle brick having therethrough a discharge passage. An annular member formed of a refractory gas-permeable material is embedded in the nozzle brick and has an inner surface defining a discharge passage aligned with the discharge passage of the nozzle brick. A processing gas is supplied to the annular, gas-permeable member which supplies such gas to the discharge passage. The annular member is encased in metal, except for the inner surface thereof, to prevent leakage of the gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.