Title:
CRUSHED SAND MANUFACTURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/052409
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a crushed sand manufacturing device capable of efficiently
performing an grinding action, uniformly grinding a raw sand to be crushed, and
reducing the filling of a grinding material for the purpose of increasing the
quality of the raw sand to be crushed. [MEANS FOR SOLVING THE PROBLEMS] This crushed
sand manufacturing device comprises a spherical drum which of the whole is rotatable.
The inside of the drum is partitioned in the rotating direction to form a mixing
chamber which partly forms the spherical shape of the drum. The grinding material
is put into the mixing chamber, and a rotating shaft in the mixing chamber is partitioned
by a cylindrical screen to hold the grinding material in the mixing chamber. The
mesh of the screen is set to such a size that allows crushed sand to freely pass therethrough
and stops the passing of the grinding material therethrough, and a mixing and
moving screw for moving and mixing the sand to be crushed by rotating is installed
at the rotating center of the drum.
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Inventors:
SASAKI KUNIO (JP)
Application Number:
PCT/JP2006/317618
Publication Date:
May 10, 2007
Filing Date:
September 06, 2006
Export Citation:
Assignee:
SASAKI KUNIO (JP)
International Classes:
B02C17/18; B02C17/10; B02C17/20
Foreign References:
| JPH05309249A | 1993-11-22 | |||
| JP2000317420A | 2000-11-21 | |||
| JPS59135141U | 1984-09-10 | |||
| JP2003010711A | 2003-01-14 | |||
| JPH03186359A | 1991-08-14 |
Attorney, Agent or Firm:
OHARA, Eiichi (5F Toyoseimaiki Bldg., 10-1, Ginza 5-chome Chuo-ku Tokyo 61, JP)
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