Riserless transfer pump and mixer/pre-melter for molten metal applications
US9234520B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2012 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Apr 9, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/445
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump for processing molten metal having an enlarged tubular body which houses a centrifugal pump at its bottom end. The bottom end has a concave curved shape whose shape is a function of the particular type of vortex to be created for the application at hand. This curved portion of the body receives the ejected molten metal from the impeller and forms an uplifting axial vortex within the tubular section of the body. The pump is designed to cooperate synergistically with said body such that the uplifting axial vortex to climb up the inner wall of the body up to and out of an outlet formed in the upper end of the body. A radial vane impeller is formed in the back plate of the impeller. When the impeller is rotated, solid particles introduced into the body are accelerated radially by the back plate impeller into the vortex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.