CRUSHING/CLASSIFICATION METHOD AND DEVICE THEREFOR

Japanese Patent JP3624307

B2

PROBLEM TO BE SOLVED: To enable the grain size distribution to be optionally changed by arranging a grain size distribution adjusting means between the upper end level of a crushing roller in a crushing chamber and the lower end face level directly below the lower part of a classifying chamber.
SOLUTION: The crusher/classifier comprises and upright roller mill crushing chamber 3 provided at the lower part of an external airtight casing 1 and an air classifying chamber 5 provided at the upper part. Further, the crushing chamber 3 has plural crushing rollers 8 arranged on a crushing table 7 equipped with a dam ring. When a primary air current FA for conveying/classification located between the upper end level of the crushing roller 8 and the end face level directly below the lower part of the classifying chamber 5 is made to gyrate and thereby a finely shredded raw material BM is made to ascend, a secondary air current SA for conveying/ classification is allowed to be confluent with the primary air current FA from the tangential direction near a secondary cir current introduction part 60 to increase the air flow. Thus the air currents FA, SA are made to reach an air classifier 11 through a guide vane 13.

Takeshi Furukawa
Shinichi Shimamura
Fumio Kono
Kantaro Kantaro
Ogata Masaru

JP36332099A

March 02, 2005

December 21, 1999

Click for automatic bibliography generation  

Pacific Engineering Co., Ltd.
Kurimoto Iron Works Co., Ltd.

B07B7/08; B02C15/04; B02C23/30; B02C25/00; (IPC1-7): B02C15/04

JP6198548U
JP59142048U
JP6295153A

Yu Saito
Fumihiko Ito

Previous Patent: LOW ENVIRONMENTAL POLLUTION TYPE TRACK/ROAD TRAVELING WORKING VEHICLE

Next Patent: ELECTRIC POWER STEERING DEVICE