Automatic tube bowl centrifuge for centrifugal separation of liquids and solids with solids discharge using a scraper or piston
US6776752B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2003 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Apr 14, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B2009/085
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A centrifugal separator provides for discharge of solids by either an axial-motion scraper or a piston/extrusion assembly. The axial-motion scraper (80) is used with hard-packed or friable solids, and includes and integral feed liquid accelerator and feed holes. The piston/extrusion assembly is used with pasty solids, and includes a piston (12) extending into a bowl (10) and having openings (45) permitting fluid communication across the piston. After separation is complete, a centrate valve (34) closes one end of the bowl, and the piston is moved axially in the bowl by an actuator. A bowl suspension employs a spherical mounting structure (96) and a short spindle (98). A bearing (100) and the spindle (102) of the bowl are mounted within the bearing housing. The suspension is retained by a ring and retaining member secured to the separator in compressive contact with the spherical portion of the bearing housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.