Destruction and re-use of mineral wool scrap
US5274896A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1992 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Mar 5, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49751
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of destructing mineral-wool scrap and reusing the scrap in the manufacture of mineral wool includes introducing the mineral-wool scrap in a finally divided state into a container causing the finely-divided mineral-wool scrap to pass through a heating zone generated by an oxygen burner such as to convert the mineral-wool scrap to a liquid state and delivering the molten mineral-wool scrap into a furnace in which a melt for manufacturing mineral-wool is produced or to an intermediate container mounted between the furnace and a spinning machine. When the molten mineral-wool scrap is being delivered to the intermediate container, molten material taken from the furnace is also delivered to the intermediate container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.