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About This Product
For testing the tendency of segregation of fluidized powder and granules. The segregation tendency of powder fluidized by airflow can be tested using a sample volume of approximately 10 mL. In a fluidized bed, fine particles generally remain at the top because they contain air for a long time, while denser coarse particles tend to gather at the bottom and cause segregation. The possibility of segregation due to fluidization increases after mixing in a mixer, when filling and discharging, or when transporting by air. Compliant with ASTM D6941-03.
It is possible to simulate segregation when aerating bulk powder and granular material. For example, you can compare segregation due to different materials such as container filling, rapid mixing, and pneumatic transport. Computerized gas flow control allows for highly reproducible tests that are independent of the operator.
function
■Tests the tendency of segregation when bulk powder is fluidized by airflow.
・Segregation when aerating bulk powder and granules can be simulated. Examples: filling containers, rapid mixing, pneumatic transport, etc.
・You can compare segregation due to different materials.
・Computer-based gas flow control allows for highly reproducible tests that are independent of operators. When powder and granules become fluidized, layers may form in the horizontal direction due to differences in particle size, etc., and segregation may occur in the vertical direction. In general, fine particles have a lower air permeability than coarse particles, so they tend to retain air longer. Therefore, when the hopper is filled, the heavy, coarse particles gather at the bottom, while the fine particles, which have become lighter due to the inclusion of air, remain fluidized near the top surface. If fluidized during mixing in a tumbler mixer, segregation may occur after the mixer is stopped. Many powders with a particle size of 100 microns or less have a greater tendency to draw in air and become fluidized. In addition, the possibility of fluidization increases when powder is transported pneumatically at high speeds, when filling or discharging, or when there is a gas flow opposite to the direction of movement.
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Product
Fluidization segregation tester
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