Rotational lance drive and rotational lance injection method
US9259780B2 · kind B2 · utility
3Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Apr 10, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18096
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Rotary lance drives for rotating a lance for injecting gas and powdered reagents into molten metal include a reciprocating rotary lance drive and an associated method. A lance mount which facilitates loading of a lance into a lance drive is also disclosed. Various lance designs are described for improving dispersion of reagent and decreasing process time, including lances having non-circular refractory portions and lances having cross-port arrangements for more evenly distributed reagent discharge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.