摘要:
Die Erfindung betrifft eine Vorrichtung zur Erzeugung von Scherbeneis aus einer Flüssigkeit, umfassend eine die Flüssigkeit aufnehmende Wanne, eine drehbar gelagerte Walze, welche in die in der Wanne aufgenommene Flüssigkeit teilweise eintaucht, eine Kühleinrichtung zum Kühlen der Oberfläche der Walze und einen Schaber zum Abtragen von an der Oberfläche der Walze aus der Flüssigkeit gebildetem Eis.
摘要:
A method for processing and preserving an acellular collagen-based tissue matrix for transplantation is disclosed. The method includes the steps of processing biological tissues with a stabilizing solution to reduce procurement damage, treatment with a processing solution to remove cells, treatment with a cryoprotectant solution followed by freezing, drying, storage and rehydration under conditions that preclude functionally significant damage and reconstitution with viable cells.
摘要:
The invention provides an apparatus and method for continuously delivering ice particulates at high velocity onto a substrate for treating the surface of the substrate. The apparatus includes a refrigerated curved surface that is brought into contact with water to form a thin, substantially uniform, ice sheet on the surface. This ice sheet is of such thickness as to contain stresses so that the sheet is predisposed to fracture into particulates. A doctor-knife is mounted to intercept a leading edge of the ice sheet and to fragment the ice sheet to produce ice particulates. These ice particulates enter into at least one ice-receiving tube that extends substantially along the length of the doctor-knife. Once in the tube, the ice particulates are fluidized by a constant flow of air and are carried into a hose for delivery through an ice-blasting nozzle under pressure. The flow path for the ice particulates in the tube and the delivery hose has a substantially constant cross-sectional area, and flow surfaces are smooth to minimize the likelihood of blockages. Advantageously, the apparatus is able to function for extended periods of time without ice blockages occurring.
摘要:
An ice blasting cleaning system including an ice maker that creates ice particles, at least one separator that separates snow from the ice particles, a hopper into which the ice particles enter, and a blasting gun that receives the ice particles and propels them toward the surface to be cleaned. The separator may be for example, an air blower, an ice breaker plate set at a steep angle, a heated or a cooled ice breaker plate, or a rotating brush. The present invention also includes an ice blasting cleaning method for cleaning a surface using ice particles as the cleaning agent. The method includes creating ice particles and snow, separating the ice particles from the snow, the ice particles entering a hopper, and propelling the ice particles toward the surface to be cleaned.
摘要:
The invention provides an apparatus and method for continuously delivering ice particulates at high velocity onto a substrate for treating the surface of the substrate. The apparatus includes a refrigerated curved surface that is brought into contact with water to form a thin, substantially uniform, ice sheet on the surface. This ice sheet is of such thickness as to contain stresses so that the sheet is predisposed to fracture into particulates. A doctor-knife is mounted to intercept a leading edge of the ice sheet and to fragment the ice sheet to produce ice particulates. These ice particulates enter into at least one ice-receiving tube that extends substantially along the length of the doctor-knife. Once in the tube, the ice particulates are fluidized by a constant flow of air and are carried into a hose for delivery through an ice-blasting nozzle under pressure. The flow path for the ice particulates in the tube and the delivery hose has a substantially constant cross-sectional area, and flow surfaces are smooth to minimize the likelihood of blockages. Advantageously, the apparatus is able to function for extended periods of time without ice blockages occurring.
摘要:
An ice scraping system includes a scraper blade (16) driven by a pneumatic cylinder (20) coupled to an electropneumatic controller (116). Distance of the blade (16) from the surface (40) being scraped is continuously monitored by a command controller (80) which specifies different electrical command signals for the electropneumatic control device (116).
摘要:
Ein Feineiserzeuger hat eine in eine Gefrierflüssigkeitswanne (2) eintauchende Gefrierwalze sowie mindestens je einen ventilgesteuerten Flüssigkeitszu- sowie -ablauf, wobei bei Inbetriebnahme des Feineiserzeugers die Wanne (2) mit zu gefrierender Flüssigkeit füllbar sowie beim Stillsetzen des Feineiserzeugers diese Wanne entleerbar ist. Gemäß der Erfindung ist bei der Wanne (2) eine Reinigungsvorrichtung (5o) zum Spülen der Wanne (2) und/oder der Gefrierwalze (9) vorgesehen und der Ablauf (6) der Wanne auf die Betriebszeit der Reinigungsvorrichtung (5o) abgestimmt (Fig. 3). Nach einem Verfahren zur Feineiserzeugung kann ein Reinigungsvorgang der mit der zu gefrierenden Flüssigkeit (35) in Verbindung kommenden Teile (Innenraum von Wanne 2; Gefrierwalze 9 oder dergleichen) zeitlich unmittelbar vorgeschaltet werden, gegebenenfalls kann zur Reinigung der vorerwähnten Bereiche des Eiserzeugers (1, 1a) ein Reinigungsmittel verwendet werden, das von der zu gefrierenden Flüssigkeit abweicht, gegebenenfalls unter Nachschaltung eines Spülintervalls mit zu gefrierender Flüssigkeit.