Method of operating a vacuum system with varying pressure

Process for operating vacuum installations comprises introducing a gas into casings before flooding the vacuum chamber (V) so that dust and particles are blown out, and preventing penetration of the dust and particles into the casings. Preferred Features: The casings consist of hollow rolls or roll...

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Bibliographische Detailangaben
Hauptverfasser:	HEIN, STEFAN, KLEMM, GÜNTER
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	ACCESSORIES FOR PAPER-MAKING MACHINES BASIC ELECTRIC ELEMENTS BEARINGS BLASTING CALENDERS CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING CLEANING IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CONVEYING DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LAUNDERING LIGHTING MECHANICAL ENGINEERING METALLURGY PACKING PAPER-MAKING PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL PRODUCTION OF CELLULOSE ROTARY BODIES OTHER THAN GEARING ELEMENTS SEMICONDUCTOR DEVICES SHAFTS STORING SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TEXTILES THERMAL INSULATION IN GENERAL TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE WEAPONS
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Beschreibung
Zusammenfassung:	Process for operating vacuum installations comprises introducing a gas into casings before flooding the vacuum chamber (V) so that dust and particles are blown out, and preventing penetration of the dust and particles into the casings. Preferred Features: The casings consist of hollow rolls or roll sections (12) containing roller bearings and inner rings. The gas is blown through the annular gaps between the inner rings and outer rings. The gas amount is regulated.