CPC F28G 1/12 (2013.01) [B08B 1/10 (2024.01); B08B 9/04 (2013.01); B08B 9/0552 (2013.01); B08B 9/057 (2013.01); B08B 9/053 (2013.01)] | 4 Claims |
1. A cleaning ball comprising:
a sponge rubber ball configured to clean a heat transfer tube of a condenser; and
a skin layer composed crushed sand bonded to a surface of the sponge rubber ball with an adhesive, wherein
the crushed sand comprises sandstone containing granite particles, and the crushed sand has a particle size between 0.05 mm and 2.00 mm, and
the skin layer is formed in a plurality of concave and convex shapes, on the sponge rubber ball, and is configured to deform corresponding to deformation of the sponge rubber ball.
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