Abstract:
Bei einer Vorrichtung zum Dispergieren insbesondere zähflüssiger Substanzen, mit einem Behälter (200) mit einer oder mehr Öffnung zum Einleiten der zu dispergierenden Substanzen sowie einer oder mehr Öffnungen zum Ausleiten (150, 160) der dispergierten Substanzen, sowie mindestens einem Rotor und einem Stator (110), wobei der mindestens eine Rotor zum Zweck des Dispergierens von in den Behälter eingeleiteten Substanzen gegenüber dem Stator um eine Rotationsachse (155, 165) drehbar gelagert ist, wird ein schnelles und genau dosierbares Einleiten und mengenmässiges Regeln von Substanzen dadurch ermöglicht, dass der Stator (150, 160) in Richtung der Rotationsachse (155, 165) des Rotors reziprozierbar gelagert ist und mittels einer Verschiebeeinrichtung (170) innerhalb eines vorgegebenen Hubbereiches verschiebbar und dabei in beliebiger Position arretierbar ist.
Abstract:
There is provided according to the present invention a process for preparing crystalline particles, especially particles of a pharmaceutical or carrier substance suitable for inhalation therapy, in addition to an apparatus for the preparation of such particles.
Abstract:
The invention concerns a method for preparing an emulsion from immiscible constituents comprising at least a liquid by treating them with a first periodic action (3), producing a cavitation effect, characterised in that it consists in: introducing in the treatment process the immiscible constituents (2), at least a supplementary periodic action (4) whereof the frequency differs from the frequency of the first periodic action by at least a factor 10; forming in the liquid medium acoustic resonators constituted by bubbles of gas, vapour or their combinations, and constituting part of the immiscible constituents, by introducing gas, vapour or their combinations (8); modulating by the supplementary periodic action (4), said first periodic action (3) with a frequency, phase and/or amplitude modulation, or a combined modulation; acting by resonance using the spectral components formed by the modulation, on the immiscible constituents (2) whereof the particular frequencies are equal and/or correspond on the whole to the frequencies of said spectral components, thereby producing a cavitation phenomenon which breaks down the particles of the immiscible constituents and brings about the formation of a stable, homogeneous and fine emulsion.
Abstract:
Mischvorrichtung (1) und Verfahren zur Herstellung eines Faserbetons, aufweisend: - ein Gehäuse (2) mit einer Mischkammer (3), - eine Flüssigkeitszufuhr (4) zum Zuführen einer Flüssigkeit in die Mischkammer (3), - eine Zufuhr- und Einstreueinrichtung (5) zum Zuführen einer Feinkornmischung und zum Einstreuen der Feinkornmischung auf die Oberfläche der Flüssigkeit sowie zum Zuführen einer Grobkornmischung und zum Einstreuen der Grobkornmischung in eine Suspension aus der Feinkornmischung und der Flüssigkeit, - ein Mischwerkzeug (6) zum Vermischen der Feinkornkornmischung mit der Flüssigkeit und zum Vermischen der Grobkornmischung mit der Suspension, - eine Strömungsleiteinrichtung (7) zur Ausbildung zumindest einer Zirkulationsströmung (S1) der Flüssigkeit in der Mischkammer (3), wobei die Strömungsleiteinrichtung (7) ein Seitwärtsleitelement (8) für einen Seitwärtsabschnitt der Zirkulationsströmung (S1) zum Einstreuen der Feinkorn- bzw. Grobkornmischung und ein Aufwärtsleitelement (9) für einen Aufwärtsabschnitt der Zirkulationsströmung zum Leiten der Zirkulationsströmung (Sl) in Richtung des Seitwärtsleitelements (8) aufweist, wobei das Mischwerkzeug (6) zumindest ein Verwirbelungselement (10a, 10b) innerhalb des Aufwärtsleitelements (9) aufweist, wobei das Verwirbelungselement (10a, 10b) um eine im Betriebszustand im Wesentlichen vertikale Drehachse (9a) rotierbar ist.
Abstract:
A method for forming a reinforced metal matrix includes the steps of: (a) at least partially melting a metal or metal alloy, (b) adding basalt fibres to the melt of step (a) at a proportion from 1 to 10wt%, and (c) stirring the basalt fibres and melt of step (b) at a rate from 400 to 1200rpm for a time from 1 to 60 minutes. The result may be improved by sonicating the basalt fibres and melt of step (c) and by casting the product into a preheated mould.
Abstract:
An invention relates to cleaning of a fluid, especially cleaning of drinking water or waste water by using ultrasonic waves and a cavitation. The inventions concerns an arrangement (101) for removing a harmful substance from a fluid (102), wherein a tubular space (103) has an inlet (104) for receiving the fluid and an outlet (105) for ejecting the fluid. The arrangement comprises a cavitation element (106) that is configured to rotate inside the tubular space to cause a cavitation in the fluid, the cavitation element tapering towards its top (109) so that a bottom (110) of the cavitation element is wider than the top and an axel intended for rotating the cavitation element is located at a line (111) that penetrates the top and the bottom's midpoint (112). The arrangement further comprises at least one acoustic power transducer (107) for generating sound waves (108), said at least one acoustic power transducer to be located such that the sound waves are targeted to the fluid under an influence of cavitation, and a whirl element (113) for driving the fluid inside the tubular space to a spiral movement (114) towards the top of the cavitation element and the cavitation element's surface from the top to the bottom, the spiral movement contributing the breaking of the molecules.
Abstract:
A system to increase the speed of fluid fermentation and/or maturation by means of induced waves. This system can be deployed using multiple different architectures. The primary architecture is by direct immersion of "self-powered" device into the target medium, which irradiate the fluid, its contents, and its storage container with vibratory and/or sonic energy. These devices can take several forms such as spheres, cubes or any other geometric shape and can be configured with sensors to detect the quality of the medium. Also, the devices can change its buoyancy depending on the conditions of the medium. This change of buoyancy can be utilized to optimize the delivery of vibratory and/or sonic energy to the medium, improve energy transfer from an external power source, or indicate the level of alcohol/content of the medium.
Abstract:
Ozone/oxygen gas is mixed with treated seawater at 30% quality foam and injected to the wellhead at the sea floor. At the seafloor, a tank mixing eductor would be used to mix high pressure oxygen bubbles with the oil contaminated seawater by shearing the oil globs into small oil droplets allowing the new surface area to immediately react with the dissolved ozone/oxygen in the seawater. The ozone/oxygen admixture creating an attraction force between the droplets and the oxygen bubbles. As the droplets and bubble rise, they form larger spherical top-hat bubbles that rise faster in the seawater. In the preferred embodiment, the eductor employs a cone shape flow to direct a significant amount of the oil plume into a predictable area that can then be skimmed mechanically for harvesting or destruction.
Abstract:
A roll coater with a recirculation loop is disclosed. Waste coating material form the roll coater is treated in an agitator unit containing, for example, one or more ultrasonic transducers, and optionally a filtration unit and/or temperature control unit to produce reconditioned coating solution, such as a reconditioned sol-gel precursor solution. Also disclosed is preventative maintenance module comprising a cleaning unit that is designed to engage and clean the applicator and/or metering rolls in a roll coater.