Apparatus and method to fill and empty a vessel with flammable and aggressive gas

An arrangement for charging or discharging solids to or from a vessel under gas pressure, has an upper flap-valve combination (1), a holding chute (2) provided with a purging system (3) and a lower flap-valve combination (4). An Independent claim is included for charging or discharging solids to or...

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Bibliographische Detailangaben
Hauptverfasser:	ZEHE, LOTHAR, RAULEDER, HARTWIG, KUZMA, MIECZYSLAW
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLEANING CLEANING IN GENERAL COCKS COMPOUNDS THEREOF CONVEYING DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HANDLING THIN OR FILAMENTARY MATERIAL HEATING INORGANIC CHEMISTRY LIGHTING MECHANICAL ENGINEERING METALLURGY NON-METALLIC ELEMENTS PACKING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PNEUMATIC TUBE CONVEYORS PREVENTION OF FOULING IN GENERAL SHOP CONVEYOR SYSTEMS STORING TAPS THEIR RELEVANT APPARATUS THERMAL INSULATION IN GENERAL TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING VALVES WEAPONS
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Beschreibung
Zusammenfassung:	An arrangement for charging or discharging solids to or from a vessel under gas pressure, has an upper flap-valve combination (1), a holding chute (2) provided with a purging system (3) and a lower flap-valve combination (4). An Independent claim is included for charging or discharging solids to or from a vessel under gas pressure, where a pair of upper and lower valve arrangements, enclosing an intermediate solids holding air-lock (2), are operated in sequence. The main features of the process are that: (a) only one of the pairs of upper and lower valve combinations is allowed to be open at any instant, the flap valves (6,9) are interlocked by switches (7,10); (b) the air lock space (2) is purged with inert gas, e.g. nitrogen, between valve operations, to displace either air or reactor atmosphere gases to a receiving system; and (c) the valve closure efficiency is pressure tested between valve operations.