Title:
CEMENT GRINDER
Document Type and Number:
WIPO Patent Application WO/1999/059932
Kind Code:
A1
Abstract:
A cement grinder used for grinding raw cement so as to obtain ground cement used as a material for the production of concrete of a high fluidity, comprising a rotary grinding plate (2) joined to a rotary driving unit (21a), a stationary grinding plate (1) fixed to a machine frame (40) and opposed to the rotary grinding plate (2) in the axial direction thereof with a clearance (3) kept therebetween, a raw cement supply port (10) formed in one (stationary grinding plate (1)) of the grinding plates and communicating with the clearance (3), and protrusions (reticulum (50)) provided on an opposed surface (24) of at least the rotary grinding plate (2), wherein the raw cement supplied to the clearance (3) is ground by the relative frictional movements of the grinding plates and pulverized by the collision of raw cement particles, thus enabling the cement grinder of a simple construction to carry out the rounding of the cement particles and the manufacturing of micronized ground cement.
Inventors:
YAMAMOTO HIROMI (JP)
Application Number:
PCT/JP1998/002238
Publication Date:
November 25, 1999
Filing Date:
May 21, 1998
Export Citation:
Assignee:
YAMAMOTO HIROMI (JP)
International Classes:
B02C7/08; B02C7/12; (IPC1-7): C04B7/52; B02C7/12; C04B7/36
Foreign References:
| JPH0532438A | 1993-02-09 | |||
| JPS6053654B2 | 1985-11-27 |
Attorney, Agent or Firm:
Hirata, Yoshinori (Nishizin 1-chome Sawara-k, Fukuoka-shi Fukuoka, JP)
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