FIELD: jet-type mill for grinding of various materials.
SUBSTANCE: mill has grinding chamber, pressure system for supplying mixture of energy carrier and material to be ground, and countercurrent jet-type activators positioned in grinding chamber and connected with pressure system. Each of said activators is formed as set of sequentially communicating Venturi nozzles and chamber with resonators, said resonators being positioned for displacement with respect to Venturi nozzle cut. Jet-type activators may be mounted in grinding chamber so as to provide for tangential shift of jets. Pressure system for supplying mixture of energy carrier and material to be ground may be equipped with means for recirculation of said mixture of energy carrier and material to be ground.
EFFECT: enhanced reliability in operation and increased grinding efficiency.
4 cl, 2 dwg
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