Mixing device

US10639603B2 · kind B2 · utility

Assignee

• Sartorius Stedim Biotech GmbH · DE

Inventors

• Lars Boettcher · Homberg (Efze), DE
• Jonathan Cutting · East Setauket, US
• Sharon D. West · Rockville, US
• Martin Oschwald · Bassersdorf, CH

Key dates

• Filing date: Mar 19, 2019
• Grant date: May 5, 2020
• Expiry date: Mar 19, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01F35/333
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A mixing method, a controller and a mixing device for mixing components in a mixing vessel are provided. The mixing method includes providing a mixing impeller in the mixing vessel; accelerating the mixing impeller from an inactive state to a rotating state in which the mixing impeller rotates at a first desired speed in a first rotation direction; rotating the mixing impeller at the first desired speed for a first time tsteady,1 in the first rotation direction; changing the rotation direction of the mixing impeller, so that the mixing impeller rotates in a second rotation direction at a second desired speed; and rotating the mixing impeller at the second desired speed for a second time tsteady,2.