Method and apparatus for the comminution of material for grindin

Details Method and apparatus for the comminution of material for grindin Method and apparatus for the comminution of material for grindin

1993-10-19

1994-12-27

Eley, Timothy V.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 61, 241 79, 241 80, B02C 2322

Patent

active

053757769

ABSTRACT:
The invention relates to the comminution of material for grinding, particularly for the production of cement, wherein the material for grinding is comminuted in a mill and the comminution product is classified in a classification zone into fines and oversize material and the oversize material is returned to the mill. With a view to effective influencing of the breadth of the particle size distribution as well as a relatively low specific energy consumption the comminution product is classified in the classification zone in at least two air separators which are connected one behind the other in series, and a proportion of the oversize material from the first air separator is returned directly to the mill, the remaining proportion being delivered to the second air separator.

REFERENCES:
patent: 2205177 (1940-06-01), Schlegel et al.
patent: 2554450 (1951-05-01), Ayers
patent: 3323727 (1967-06-01), Heilmann
patent: 4193554 (1980-03-01), Ansen et al.
patent: 4304360 (1981-12-01), Luhr et al.
patent: 4783012 (1988-11-01), Blasczyk et al.
patent: 4840315 (1989-06-01), Rubin et al.
patent: 5111998 (1992-05-01), Kanda et al.

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