What’s the Usage and methods of Polyhedral hollow ball?

Polyhedral hollow ball are processed from polypropylene (PP). Mainly used for the removal of gases such as oxygen, chlorine, carbon dioxide, etc. in cooling towers and purification towers. The appearance is spherical, with main specifications including φ 25mm, φ 38mm, φ 50mm, and φ 76mm. Multi sided hollow spheres can purify water quality and meet national standards when used for sewage treatment. It mainly plays a role in gas-liquid contact, achieving heat and mass transfer. Increasing the area of gas-liquid contact inside the tower is an important component that affects the heat and mass transfer of the tower.

Polyhedral hollow ball is a type of filler made of plastic with a spherical appearance. It is composed of two hemispheres, each with 12 blades in a semi fan shape. The upper and lower blades of the two hemispheres are offset from each other. This type of packing structure has the advantages of high gas velocity, low resistance, large specific surface area, and high operational elasticity. However, due to the large number of blades in the multi-faceted hollow sphere, there is a shielding effect between them, which is not conducive to the distribution and wetting of liquids. Most liquids gather in the hollow column of the sphere, which affects the smoothness of gas flow.

Polyhedral hollow ball are injection molded, while ordinary fillers are made of polyethylene plastic. This biological filler is extremely beneficial for the attachment and growth of microorganisms inside the filler, and the biofilm produced is relatively stable, making it prone to fluidization.