Abstract: The disclosed device disperses a substance in a liquid. The device has at least one dispersing chamber, which has at least one liquid inlet, at least one substance inlet, and at least one outlet. At least one driving means is placed inside the dispersing chamber while serving to set the liquid inside the dispersing chamber in motion so that at least one cavity with varying volume forms in the liquid for drawing in the substance through the substance inlet and forcing the substance made wet with liquid through the outlet.
Abstract: This invention relates to a method for the mechanically protective production of finely dispersed micro-/nanoemulsions with narrow droplet size distribution, whereby drops are produced on the surface of a membrane or of a filter fabric, and the drops are detached from the membrane or filter fabric surface by motion of the membrane or of the filter fabric in a first immiscible liquid phase in which pronounced stretching flow components in particular, besides shear flow components, bring about the detachment of the drops formed on the membrane surface especially efficiently and protectively. The invention also relates to a device for implementing the method according to the invention with a membrane or filter unit that is positioned to move, in particular to be able to rotate, in a housing with a gap that may be eccentric toward the inner wall of the housing and/or provided with flow baffles that produce stretching flow components.
Type:
Grant
Filed:
August 19, 2005
Date of Patent:
September 18, 2012
Assignees:
ETH-Zurich Institut fur Lebensmittelwissenschaft, Laboratorium fur Lebensmittelverfahren-Stechnik ETH-Zentrum/LFO, Kinematica AG, Ion Bond AG, Processtech GmbH
Inventors:
Erich J. Windhab, Verena Schadler, Beat Troxler, Andreas Kurt Dürig, Fred-Rainer Grohmann
Abstract: This invention relates to a method for the mechanically protective production of finely dispersed micro-/nanoemulsions with narrow droplet size distribution, whereby drops are produced on the surface of a membrane or of a filter fabric, and the drops are detached from the membrane or filter fabric surface by motion of the membrane or of the filter fabric in a first immiscible liquid phase in which pronounced stretching flow components in particular, besides shear flow components, bring about the detachment of the drops formed on the membrane surface especially efficiently and protectively. The invention also relates to a device for implementing the method according to the invention with a membrane or filter unit that is positioned to move, in particular to be able to rotate, in a housing with a gap that may be eccentric toward the inner wall of the housing and/or provided with flow baffles that produce stretching flow components.
Type:
Application
Filed:
August 19, 2005
Publication date:
February 17, 2011
Applicants:
ETH-ZURICH, INSTITUT FUR LEBENSMITTELWISSENSCHAFT,, KINEMATICA AG, ION BOND AG, PROCESSTECH GMBH
Inventors:
Erich J. Windhab, Verena Schadler, Beat Troxler, Andreas Kurt Dürig, Fred-Rainer Grohmann
Abstract: The apparatus for continuous kinematic high frequency treatment of a substance or a mixture of substances is provided with two respective comminution member rings both on the stator and on the rotor. At least the outermost comminution member ring and generally the three outermost comminution member rings are provided with narrow slots having a width of less than 1 mm, preferably less than 0.5 mm, which are closed at the free end of said rings. The closed slots are manufactured by means of a carbon dioxide laser device. In the process, first the comminution members, which are provided with holding means, are manufactured and the slots are cut by the laser device, and then the two holding means of the stator and the two holding means of the rotor are welded together. By providing these narrow slots, a finer mixture with higher efficiency is obtained.
Abstract: A first coupling device is particularly destined for a dispersing apparatus and comprises a first coupling part having a flange and a tubular connecting piece fixed thereto, the connecting piece having at least two borings for receiving one ball each, and a concentrically surrounding, free moving ring. The diameter of the boring is slightly greater than that of the balls, but in the vicinity of the inner surface of the connecting piece, it is slightly smaller so that the balls may in part protrude into the interior of the connecting piece. The lower portion of the ring has an inner circular recess so that, when the ring is raised, the balls may travel backwards into the circular recess. The second coupling part is adapted to be introduced into said connecting piece and has circular recesses for receiving said balls.Another coupling device for the slippage free connection of high speed rotating shafts of dispersing apparatuses comprises two coupling parts which both have six teeth whose flanks are of 60.