水平円筒形混合機内の粒子の流動と混合について
1967 年 16 巻 164 号 p. 364-369
詳細
1967 年 16 巻 164 号 p. 364-369
An experimental study was carried out on the process of radial mixing in the horizontal cylinder type batch mixer from the view point of circulation flow of particles occasioned by the transportation of particles in the zone of static mass.
The experiments were made, on the binary component system, with a two-dimensional horizontal cylinder mixer of 9cm radius and 1.5cm thickness having 39 sampling holes, using for mixing components Soma sand of 1 mean mm particle size, a part of which was dyed in red for detecting. Samples, each containing on the average 100 particles, were drawn with plastic pipe sampler of 4mm diameter to analyse the distribution of concentration and determine the degree of mixedness of the mixture.
The width of static mass was measured and the values were correlated with running speed N and charge ratio F/V.
The mean circulation time T was calculated with the values of h for various operational conditions as shown in Table I.
The time variation of two mixedness; one is Mmax based on the maximum concentration Cmax in the mixture and the other M, the whole mean sample was observed too. The rate of mixing for both the mixedness can be expressed by the mean circulation time T.
In the process of experimental work, several informations were obtained also to analyse the mechanism of mixing in the horizontal cylinder mixer.
