21809 ドラフトチューブを用いた新方式攪拌機の提案(明日に向けた熱と物質移動の新展開(2),OS.6 明日に向けた熱と物質移動の新展開)

概要

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Experimental study has been conducted to obtain the high performance agitation with low power and low shear force in the mixing tank with high height and small spaces. New type of agitator, which combined the draft tube installed in the mixing tank was presented. The mixing time was measure for improving for the several cases of the draft tube and the baffle mounting. The results show that the mixing time with the case of draft tube adding the secondary baffle was shortened than the baffle condition. It is also observed that there has an optimum diameter of the draft tube, in which an inside space in the draft tube equal to outer one, has a minimum values of the mixing time. It is suggested that a relative size of the agitation blade in the draft tube diameter largely affects on the mixing characteristics.
社団法人日本機械学会の論文
2007-03-15