0513770-A2 is referenced by 4 patents and cites 3 patents.

Materials such as cement clinker are crushed by utilizing a crushing apparatus including a vertical roller mill (21) provided with a rotatable table (34) and a plurality of rollers (38) and a distributing device (26) for distributing materials preliminarily crushed by the vertical roller mill (21). The materials to be crushed is fed into the vertical roller mill (21), the materials are crushed between the table (34) and the rollers (38) by a pressing force applied to the rollers (38) and substantially the whole amount of the crushed materials is then taken out from the vertical roller mill (21) and conveyed to the distributing device (26). The crushed materials once conveyed to the distributing device (26) is returned partially as they are to the vertical roller mill (21) and again crushed together with the materials newly fed into the vertical roller mill (21).; The materials are returned to the vertical roller mill (21) 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 (34) of the vertical roller mill (21), and the pressing force of the rollers (38) is also controlled in accordance with the power consumption. The crushed materials are fed to a tube mill installed downstream the vertical roller mill (21) for carrying out a secondary crushing operation.

Title
Crushing apparatus and crushing method.
Application Number
EP19920108096 19920513
Publication Number
0513770 (A2)
Application Date
May 13, 1992
Publication Date
November 19, 1992
Inventor
Shitara Tsuneichi
JP
Ichikawa Mitsunari
JP
Sutoh Kanzaburo
JP
Yamamoto Yuji
JP
Ueda Hiroshi
JP
Sawamura Seisuke
JP
Hashimoto Isao
JP
Assignee
Kawasaki Heavy
JP
IPC
B02C 25/00
B02C 21/00
B02C 15/00
C04B 07/00
B02C 25/00
B02C 21/00
B02C 15/00
C04B 07/52
B02C 25/00
B02C 21/00
B02C 15/04
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