Opposed type jet mill

Details Opposed type jet mill Opposed type jet mill

1984-10-15

1985-06-25

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Including means applying fluid to material

241 5, B02C 1906

Patent

active

045249156

ABSTRACT:
An opposed type jet mill, in which a discharge pipe for feeding a mixture flow of high speed gas and ground material discharged from a grinding chamber to an airflow classifying chamber is provided nearly at an equal distance from a new raw material accelerating injector and a regrinding raw material accelerating injector disposed on the left and right hands, respectively, of the grinding chamber and at right angles to a common center line of the both injectors, and a coarse grain return pipe for feeding coarse grains separated in said airflow classifying chamber to the regrinding raw material accelerating injector is disposed so that the angle formed between said return pipe and said regrinding raw material accelerating injector may become an acute angle of 60 degrees or less, which jet mill can reduce energy loss of gas flows and yet can achieve micro-fine grinding.

REFERENCES:
patent: 3550868 (1970-12-01), Stephanoff
patent: 3675858 (1972-07-01), Stephanoff
patent: 4019688 (1977-04-01), Akunov et al.

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