Method for melting a batch of raw materials by a crown burner
US8578738B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 4, 2012 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Sep 4, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/50
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention concerns a method for melting a composition of raw materials including introducing the composition in an oven to form a layer (2) at the surface of the molten pool (4). An oxycombustion burner (10) is arranged above the pool and directed towards the composition layer (2) to produce a melting front (3). Parameters of the burner are adjusted to produce a large covering flame (12) causing an essentially radiation-based thermal transfer. Additionally, a plane containing a longitudinal section of the flame (Z-Z) and a horizontal direction perpendicular to the axis of the oven (X-X) intersects the melting front (3) at a height (h) included ranging between one third and half of the thickness of the composition (e). Such a method provides for a stable operation of the oven and is particularly adapted to a large-capacity oven.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.