DEVICES FOR DISPENSING METERED FLOWS OF FINE GRANULAR MATERIAL FROM PRESSURIZED STORAGE VESSELS

1435645 Discharging hoppers EISENWERKE GES MAXIMILLIANSHUTTE mbH 25 Feb 1974 [2 March 1973] 8465/74 Heading B8S Fine granular material 2 is dispensed in a metered flow from a pressurized storage vessel 1 by a device comprising a discharge opening 4, the cross-sectional area of which is adjustable by...

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Hauptverfasser:	HANSEN A, GRAPENGIESSER C, BROTZMANN K, FASSBINDER H, MANTEY P
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PNEUMATIC TUBE CONVEYORS SHOP CONVEYOR SYSTEMS STORING TESTING THEIR RELEVANT APPARATUS TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING
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Zusammenfassung:	1435645 Discharging hoppers EISENWERKE GES MAXIMILLIANSHUTTE mbH 25 Feb 1974 [2 March 1973] 8465/74 Heading B8S Fine granular material 2 is dispensed in a metered flow from a pressurized storage vessel 1 by a device comprising a discharge opening 4, the cross-sectional area of which is adjustable by a movable closure and metering member 8, and downstream of the member 8 in the direction of flow of material a sealing plate 12 associated with a sealing ring 13 on to which the plate is movable to form a gas-tight seal. The material 2 in the vessel is fluidized by a device 3 adjacent a closure plate 5 having a discharge opening 4 into which the closure and metering member 8 seats, the member 8 and its seat 6 being made from a wear resisting material. The sealing plate 12 is connected to a rod 7 depending from the member 8, and seats on the sealing ring 13 mounted in a seating disc 11 provided with radial ducts from which pressurized gas issues to remove residual material particles from the plate 12 before it closes. Vertical movement of the rod 7 opens and closes the metering member 8 and the sealing ring 13. In the embodiment of Fig. 2 (not shown) the closure and metering member has a cylindrical portion which delays opening of the member until the sealing plate is open to a certain extent. In the embodiment of Fig. 3 (not shown) the closure and metering member is cylindrical with inclined passages therein permitting gradual start of discharge, whereas in the embodiment of Fig. 4 (not shown) a cylindrical closure and metering member moves through a sleeve having discharge apertures therein to achieve the same result. In the embodiment of Fig. 5 (not shown) the closure and metering member comprises two relatively sliding apertured plates and the sealing plate is formed as a butterfly valve. In the embodiment of Fig. 7 (not shown) the sealing plate is formed as a cone mounted on to the bottom of a cylindrical tube movable along the inside of a fixed tube apertured to permit material discharge as the inner tube lowers, the apertures being either triangular or helical.