竪型リボン混合機の所要動力
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概要
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The effects of various operating conditions on the rotational torque of vertical ribbon mixers have been studied.The rotational torque, T[Kgm] of the mixers increases with increasing the height of powders bed, H[m], the bulk density, ρa[kg/m3] and the internal friction factor μi[-] of the powders, and the diameter of the ribbon, D0[m]. In the range of the rotating speed, N, of 30≤N≤100r.p.m., the torque remains almost constant and has a tendency to decrease as the ribbon width increases.The torque data are well correlated with the experimental conditions by the relation T=0.15ρa1.0μi0.7Rp1.2Rb-0.8H1.5D03.0, where, Rp [-] and Rb [-], respectively, are the ratios of the pitch and the width of the ribbon to the ribbon diameter.
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