Device for projecting solid particles for a vacuum centrifugal g

Details Device for projecting solid particles for a vacuum centrifugal g Device for projecting solid particles for a vacuum centrifugal g

1986-02-10

1987-07-28

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Stationary comminuting surface or material bed

B02C 1900

Patent

active

046827390

ABSTRACT:
Device for projecting solid particles for a vacuum centrifugal grinder incorporating a rotationally driven distributor wheel (20) in which a plurality of ejection channels are formed. The particle-guiding face in each channel (21, 22) has a curvature (A) extending in the direction of rotation of the distributor wheel (20) and whose outline, calculated as a function of the friction coefficients of the materials in contact, produces the attachment to said curvature (A) of a stable self-protection layer (30) consisting of the particles themselves, with automatic regeneration of the layer as it wears. The invention applies, for example, to the grinding of cement or pulverized coal.

REFERENCES:
patent: 3174697 (1965-03-01), Bridgewater
patent: 4138067 (1979-02-01), Planiol
patent: 4575014 (1986-03-01), Szalanski et al.
patent: 4577806 (1986-03-01), Terrenzio

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