FEEDING GRANULAR MATERIAL INTO A GAS STREAM

Apparatus for feeding granular material into a gas stream,for example seed or fertilizer into multiple airstreams of an agricultural vehicle, includes a receptacle for granular material, a duct for a gas stream,and a pair of resiliently compressible surfaces which contact or almost contact to define...

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Bibliographische Detailangaben
1. Verfasser:	RYAN, AUSTIN T
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY CONVEYING FERTILISING FISHING FORESTRY HANDLING THIN OR FILAMENTARY MATERIAL HUMAN NECESSITIES HUNTING PACKING PERFORMING OPERATIONS PLANTING PNEUMATIC TUBE CONVEYORS SHOP CONVEYOR SYSTEMS SOWING STORING TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING TRAPPING
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Beschreibung
Zusammenfassung:	Apparatus for feeding granular material into a gas stream,for example seed or fertilizer into multiple airstreams of an agricultural vehicle, includes a receptacle for granular material, a duct for a gas stream,and a pair of resiliently compressible surfaces which contact or almost contact to define a nip between them. The surfaces may be provided by contrarotatable rollers and are disposed so that granular material may pass from one side of the nip through a port into the duct, and are moveable into the nip from the other side. The apparatus further includes metering means defining a controllable outlet from the receptacle and positioned with respect to the nip for feeding granular material into the nip from said other side at an adjustable controlled rate. Also disclosed is a distributor for gas-entrained granular material which includes a conical, part-conical or inverted conical surface in a diverging housing.