FIELD: process engineering.
SUBSTANCE: invention relates to closed mixer and its mixing rotor. Rotor long blade length L4 in direction of rotor rotation exceeds half the full length L5 of rotor section main case in said direction. Long blades are arranged so that when pair of rotor sections is located mutually parallel to run in opposite directions, end section on rear side in direction of rotor section rotation and end section on front side of log-blade rotor section rotation of the other rotor sections repeat, in turns, mutual approach and removal. When approached, front side end section and rear side end section are opposed in direction of rotor section rotation on line connecting appropriate central axes of rotor section pairs in one cross-section perpendicular to axial direction of rotor section.
EFFECT: better mechanical properties.
6 cl, 23 dwg
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