Solid-bowl screw centrifuge with an outlet device having a restrictor controlled by a floating body that floats on a liquid level of the material being separated in the centrifuge to automatically adjust the outlet in dependence on a throughput of the material
US10293347B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2015 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Jun 25, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B2001/2083
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A solid-bowl screw centrifuge is provided for the separation of multiphase material. The solid-bowl screw centrifuge has a centrifuge drum that is rotatable around an axis and the centrifuge drum has at least one outlet for discharging a phase of the material from the centrifuge drum. The outlet has a restrictor controlled by a floating body that floats on the material to adjust the outlet automatically in accordance with a liquid level of the material in the centrifuge drum, and the liquid level, in turn, is dependent on the throughput of the material. The restrictor may include a weighted body that is subjected to centrifugal force and also may include a restricting body arranged in a discharge port of the outlet. The outlet may include a deflection device for changing direction of the material flowing out to a direction that is transverse to the longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.