Title:
CLEANING BALL AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2021/157226
Kind Code:
A1
Abstract:
Provided are: a cleaning ball for use in a condenser in a power plant, which can clean with high efficiency, and in which a material adhered on the surface of the ball is harmless even when the material is discharged into seas and oceans, and which is friendly to the sea environment; and a method for manufacturing the cleaning ball. A cleaning ball 1 is manufactured by adhering crushed sand 10 onto the surface of a sponge rubber spherical body 30 for condenser heat transfer tube cleaning use with an adhesive agent 11, thereby forming a surface layer that has a concave-convex shape and is easily deformable together with the sponge rubber spherical body 30, in which the crushed sand 10 comprises sandstone, contains granite grains and has grain diameters of 2.00 to 0.05 mm.
Inventors:
SASAKI TAKUYA (JP)
Application Number:
PCT/JP2020/047598
Publication Date:
August 12, 2021
Filing Date:
December 21, 2020
Export Citation:
Assignee:
MIZUKI CO LTD (JP)
International Classes:
F28G1/12
Foreign References:
| JPS4530242Y1 | 1970-11-20 | |||
| JPS6081493U | 1985-06-06 | |||
| JPH05280889A | 1993-10-29 | |||
| GB700833A | 1953-12-09 | |||
| US5520712A | 1996-05-28 | |||
| JPS57122299A | 1982-07-30 |
Attorney, Agent or Firm:
OMORI Keiko et al. (JP)
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