FIELD: chemistry. SUBSTANCE: device has a beveled housing axially to which a shaft with blades is fixed. The lower end of the shaft is worm-shaped and has a pair of blades on it. There is a discharge unit attached to the housing. Not less than eight blades are fastened to the shaft at an angle of 42-48 deg. to the axis of the shaft. The blade twist alternates. The pitch of blades is inversely proportional to the square of the diameter of the section of the beveled housing. EFFECT: higher efficiency and reliability. 1 cl, 1 dwg
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Authors
Dates
1995-05-20—Published
1991-06-28—Filed