Jet mill

Solid material comminution or disintegration – Apparatus – Including means applying fluid to material

Reexamination Certificate

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Reexamination Certificate

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07850105

ABSTRACT:
A jet mill in which crushed material introduced into a crushing chamber12is comminuted by gas being sprayed from a plurality of gas-jet nozzles20, 21,wherein high-efficiency pulverization is performed by optimizing various pulverization conditions according to the type of crushed material or other such properties. The direction in which gas is sprayed into the crushing chamber12is variably adjustable; the spraying direction of each nozzle is displaced simultaneously by the [*18] electromotive actuator; swirl flow is produced in three dimensions, including the flow of a directional component that is perpendicular to the horizontal swirl flow; and a fine-powder discharge port of a first pulverization chamber and a fine powder introduction port of a second pulverization chamber are communicatingly connected by a ventilation duct.

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Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 127617/1986 (Laid-open No. 35443/1988) (Kurimoto Ltd.) Mar. 7, 1988.
International Search Report dated Aug. 30, 2005, issued in PCT/JP2005/007812.

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