Device and method for emptying jars
AssigneeAreva Nc
InventorsJean-Pierre Pages, Jocelyn Perisse, Pascal Vouagner
Life of this patent
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Abstract
According to the invention, a mandrel, provided with tabs for holding jars containing powders and for turning the jars upside down in order to empty them through the neck, is equipped with vibration generators for exciting the walls of the jar in order to shake off the powder masses adhering thereto. The method is much more efficient than even more energetic shock applications, and frequency scanning can further be advantageously applied. One application relates to an emptying step in methods for the production of nuclear fuel pellets by powder agglomeration.
Claims11
Device for emptying jars containing powders with poor flow characteristics, comprising a mandrel that surrounds a neck of the jar and comprising contacting portions of the neck of the jar, characterised in that the mandrel comprises vibration generators.
Method for emptying jars, comprising a step of grasping a neck of the jar by a mating mandrel, a step of turning upside down the jar by tilting over the mandrel, and a step of vibrating the jar, characterised in that the vibration of the jar is assured by the mandrel.
Dependencies are inferred from the claim text.