Vortex separator with coaxial inlet and lightweight reject pipelines
US4136018A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1977 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | Nov 10, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04C3/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method and apparatus for pulping and grading waste material in which the waste material is introduced into a cylindrical chamber having two end walls with a perforate screen in one of the end walls. An impeller in the chamber adjacent the perforate screen provides for pulping and pumping of the stock as well as provides rotational movement of the stock within the chamber. Lightweight rejects are continuously removed through an outlet centrally located in the end wall opposite the screen and heavy rejects are removed through an outlet in the cylindrical wall adjacent the end wall opposite the screen. The stock is introduced to the chamber through an annular inlet which surrounds and is coaxial with respect to the lightweight rejects outlet line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.