| 摘要 |
FIELD: foundry, in particular, preparing of sand mixtures. ^ SUBSTANCE: mixer has immovable bowl incorporating unit rotating about central axis of bowl and consisting of three plows, and one or more vortex heads. Blades are fixed on each of vortex heads, with direction of rotation of blades being opposed to that of unit of plows. Blades of vortex heads are arranged in spiral path, each of subsequent lower blades being offset relative to previous blade by an angle of 45-60 deg. ^ EFFECT: uniform processing and structural homogeneity of sand mixture. ^ 3 cl, 3 dwg |
