Vacuum installation, in particular for recycling metallurgy
US5618490A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 1995 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Aug 7, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A vacuum plant, in particular for secondary metallurgy, having at least one ejector which is in communication with a closed container within which a metallurgical vessel which is to be placed under pressure can be brought. A second ejector is connected in series with the one ejector via an intermediate condenser having a cooling water feed line and a condensate discharge line. A final condenser and a suction pump are connected to the second ejector. A controllable condensate distributor member is provided in the condensate discharge line of the intermediate condenser. One line of the distributing member is connected to a heat exchanger and the other line is connected to the cooling water supply of a final condenser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.