Title:
VERTICAL MILL ROLL
Document Type and Number:
WIPO Patent Application WO/2012/014271
Kind Code:
A1
Abstract:
A crushing roll (10) used for a vertical rolling mill, configured in such a manner that the roll outer peripheral surface (12) which serves as the crushing surface is divided into a main crushing surface (12A, 22A, 32A) which mainly performs pulverization and a material transfer surface (12B, 12C, 22B, 32B) which is the crushing surface other than the main crushing surface (12A, 22A, 32A), the main crushing surface (12A) being formed as a smooth surface, the material transfer surface (12B, 12C, 22B, 32B) being formed as a surface in which slit grooves (11B) or screw grooves (11A, 21A, 31) are formed, the slit grooves (11B) being disposed at a right angle to the circumferential direction of the roll or tilted at an angle greater than 45˚ relative thereto, the screw grooves (11A, 21A, 31) being tilted at an angle less than or equal to 45˚ relative to the circumferential direction of the roll. The configuration enables highly efficient pulverization irrespective of the type of material and extends the service life of the mill roll.
Inventors:
KAWATSU HAJIME (JP)
Application Number:
PCT/JP2010/062546
Publication Date:
February 02, 2012
Filing Date:
July 26, 2010
Export Citation:
Assignee:
SHOJI CO LTD ING (JP)
KAWATSU HAJIME (JP)
KAWATSU HAJIME (JP)
International Classes:
B02C15/04
Domestic Patent References:
| WO2009157335A1 | 2009-12-30 |
Foreign References:
| JPS6058248U | 1985-04-23 | |||
| JP2009142809A | 2009-07-02 | |||
| JPH06198206A | 1994-07-19 | |||
| JPH0386255A | 1991-04-11 | |||
| JPS6174655A | 1986-04-16 | |||
| JP61857401A | ||||
| JP2863768B2 | 1999-03-03 | |||
| JPS63111939U | 1988-07-19 | |||
| JP2009142809A | 2009-07-02 |
Other References:
See also references of EP 2599551A4
Attorney, Agent or Firm:
YANAGIDATE TAKAHIKO (JP)
Takahiko Yanagidate (JP)
Takahiko Yanagidate (JP)
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Claims: