多段多室連続流動層における溢流管と分割板について

概要

論文の詳細を見る
An investigation was carried out to obtain the stabilizing conditions for the flow of solid particles in a continuous fluidized bed both with overflow pipes and partition plates, using a cold model made of glass. (1) Amounts of gas introduced into overflow pipe, when l>l'>7.5, q_b≩q_<mf> and q_c≩q_<mf> were given by the following equations. In batch operation, q_b=Q_p(d'/D)^2φ_b. In continiuous operation, q_c=Q_p(d'/D)^2φ_c-F/ρ_s(1-ε_f)・10^3 It was suggested that q_c must be nearly equal to q_<mf> in order to maintain the stabilization of gravity flow of solids through the overflow pipe. (2) The pressure difference, at a level, between the beds separated by a partition plate was decreased with increasing the height above the gas distributor. In order to minimize the height difference in these two beds, the partition plate with a slit at lower level was effective. (3) It was suggested that the overall solid mixing behavior in two fluidized rooms, separated by the partition plate with a partially formed moving bed of solid particles, was similar to that expected for two complete mixing stages in series.
社団法人日本鉄鋼協会の論文
1979-02-01