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Survey of Recent Advances in Research on Powder Mixing in Japan

“…The pressure drop in a moving bed with a double herical ribbon was measured changing the shape of ribbon blades, operating conditions and physical properties of solid particles. The relationship among the dimensionless pressure drop 6p* and various parameters was expressed in the following equation 22 On the other hand, the amount of decrease in torque due to the blowing air into the powder bed has been well interpreted in terms of a dimensionless pressure drop 6p* as shown in Fig. 5.…”