Patent · US Expired

Flotation apparatus

US5770050A · kind A · utility

10Cited by

15References

18Claims

0Family size

Assignee

Voith Sulzer Stoffaufbereitung GmbH · DE

Inventors

Michael Trefz · Aub, DE
Thomas Martin · Rib Lake, US
Hans-Dieter Dorflinger · Heidenheim, DE

Key dates

Filing date	Jul 21, 1995
Grant date	Jun 23, 1998
Priority date	—
Expiry date	Jul 21, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/64
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An apparatus for selective particle flotation includes a static mixer connected to a flotation section in lieu thereof of the apparatus. The static mixer is disposed upstream of the flotation section in lieu thereof with respect to a direction of fluid flow through the apparatus. The static mixer mixes sludge with small gas bubbles. A flotation cyclone is disposed in an upstream portion of the flotation section in lieu thereof with respect to the direction of fluid flow through the apparatus. The flotation cyclone is the initial separation device through which the sludge flows.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.