US 11,988,472 B2 · Cleaning ball and method for manufacturing same

Abstract

A cleaning ball with a naturally derived material bonded to a surface of the cleaning ball for a condenser in a power plant is capable of performing efficient cleaning, and even if the material bonded to the surface of the ball is discharged to the ocean, the material does not cause damages to a marine environment. The cleaning ball includes a sponge rubber ball configured to deform and clean a heat transfer tube of the condenser; and a skin layer including crushed sand bonded to a surface of the sponge rubber ball. 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 concave and convex shapes on a non-deformed shape of the sponge rubber ball, and is configured to deform corresponding to deformation of the sponge rubber ball.

Claims4

Dependent claims

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.

2 more elements

Dependencies are inferred from the claim text.

Cleaning ball and method for manufacturing same

Life of this patent

Cleaning ball and method for manufacturing same

Life of this patent

Abstract

Claims4