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Polyhedral hollow ball

Home Products Scrubber Internals Random PackingPolyhedral hollow ball

Scrubber Internals

Polyhedral Hollow Ball – Multi-Blade Structure for High Efficiency

Plastic polyhedral hollow balls are made of heat-resistant, chemically stable plastic materials. Each consists of two hemispheres that form a complete sphere. The surface of each hemisphere features several semi-fan-shaped blades, with the upper and lower blades arranged in a staggered pattern. This design makes polyhedral hollow balls lighter, with lower airflow and flow resistance, and good surface hydrophilicity.

In a packed tower, the scrubbing liquid is sprayed onto the polyhedral hollow balls, forming a liquid film on their surfaces and allowing the exhaust gas to fully contact and react with the scrubbing liquid.

Polyhedral hollow balls of different sizes arranged together

Features

Large specific surface area. The multi-blade, perforated structure provides a large gas–liquid contact area.
Thorough gas–liquid contact. Liquid readily forms and renews a liquid film on the ball surface, helping improve mass-transfer efficiency.
High void fraction. The large gas-flow space provides good gas-flow performance.
Low pressure drop. Low gas-flow resistance reduces system operating energy consumption.

Specifications

Table 1: Plastic Polyhedral Hollow Ball Specifications
Size	Specific Surface Area (m²/m³)	Void fraction (%)	Bulk number (Pieces/m³)
Ø25	460	90	64000
Ø38	325	91	25000
Ø50	237	91	11500
Ø76	214	92	3000
Ø100	193	80	2800