05221051 is referenced by 6 patents and cites 11 patents.

Materials such as cement clinker are crushed by utilizing a crushing apparatus including a vertical roller mill provided with a rotatable table and a plurality of rollers and a distributing device for distributing materials preliminarily crushed by the vertical roller mill. The materials to be crushed is fed into the vertical roller mill, the materials are crushed between the table and the rollers by a pressing force applied to the rollers and substantially the whole amount of the crushed materials is then taken out from the vertical roller mill and conveyed to the distributing device. The crushed materials once conveyed to the distributing device is returned partially as they are to the vertical roller mill and again crushed together with the materials newly fed into the vertical roller mill. The materials are returned to the vertical roller mill by about 20% or more in weight ratio with respect to the newly fed materials when cement clinker is utilized as the materials to be crushed. The returning amount of the crushed materials are controlled in accordance with a power consumption of the rotatable table of the vertical roller mill, and the pressing force of the rollers is controlled in accordance with a power consumption of the rotatable table of the vertical roller mill. The crushed materials are fed to a tube mill installed downstream the vertical roller mill for carrying out a secondary crushing operation.

Title
Crushing apparatus and crushing method
Application Number
7/879289
Publication Number
5221051
Application Date
May 7, 1992
Publication Date
June 22, 1993
Inventor
Tsuneichi Shitara
Chichibu
JP
Mitsunari Ichikawa
Kumagaya
JP
Kanzaburo Sutoh
Saitama
JP
Yuji Yamamoto
Himeji
JP
Hiroshi Ueda
Kobe
JP
Seisuke Sawamura
Kobe
JP
Isao Hashimoto
Akashi
JP
Agent
Oliff & Berridge
Assignee
Kawasaki Jukogyo Kabushiki Kaisha
JP
IPC
B02C 23/08
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