| 摘要 |
A housing(1) has a mixing chamber(2) containing two axially parallel, contra-rotating rotors with bodies(5,6) which do not engage with each other. Around the outer periphery of each rotor body there are four successive mixing blades(7-10). Each successive blade runs in the opposite direction to the preceding one following a helical line and extend over half the axial length of the mixing chamber. At one end of each blade there is an opening facing the end wall of the housing. Mixing blades(7-10) have similar shapes, dimensions and position at the outer periphery of the rotor bodies(5,6). For each blade the ratio of axial length(l) of the end side opening to the axial length(L) of the mixing chamber follows the relationship 0.2=l/L=0.5. The helical angle of blades to the rotor axis is 20-35[deg] with each blade at the same angle. Blades may comprise two areas, the helix angle in the first area being 40-50[deg], preferably 45[deg], and in the second area 0-30[deg], preferably 26[deg]. |
