Powder conveyor and associated operating method

A powder conveyor has a pneumatically actuated dense phase powder pump and a pressure controller. The dense phase powder pump comprises at least one conveyor chamber having a powder inlet valve and a powder outlet valve. The pressure controller can be used to adjust and maintain a set pressure on th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Vieli Hanspeter, Mauchle Felix
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BLASTING CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HEATING LIGHTING MECHANICAL ENGINEERING NOZZLES PACKING PERFORMING OPERATIONS PNEUMATIC TUBE CONVEYORS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BYUSING INERTIA OF FLUID TO BE PUMPED PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SHOP CONVEYOR SYSTEMS SIPHONS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL STORING TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A powder conveyor has a pneumatically actuated dense phase powder pump and a pressure controller. The dense phase powder pump comprises at least one conveyor chamber having a powder inlet valve and a powder outlet valve. The pressure controller can be used to adjust and maintain a set pressure on the at least one conveyor chamber of the dense phase powder pump that is or can be previously defined and/or to adjust and maintain an actuation pressure on the powder inlet valve or the powder outlet valve that is or can be previously defined. The powder conveyor further comprises a gas flow detection device for detecting or determining a quantity of gas that is fed or removed per time unit when the set pressure is adjusted and maintained on the at least one conveyor chamber or a quantity of gas that is fed to the powder inlet valve or the powder outlet valve per time unit when the actuation pressure is adjusted and maintained. An evaluation device compares at least one detected or determined gas flow value with a corresponding set value and automatically generates an error and/or alarm signal when a deviation is detected.