Solid material comminution or disintegration – Apparatus – Including means applying fluid to material
Patent
1978-10-04
1980-04-08
Lazarus, Richard B.
Solid material comminution or disintegration
Apparatus
Including means applying fluid to material
241 79, 241 80, B02C 2334, B02C 2332, B02C 2324
Patent
active
041968603
ABSTRACT:
A horizontal axis pulverizing and classifying apparatus characterized by a plurality of gas flow passages in a narrow band surrounding the classification zone and directed generally radially inward, and means for selectively and variably introducing gas to those passages. The apparatus may also be fitted with special means for removing contaminating particles which reduce the capacity and efficiency of such apparatus. The take-out device is a porous tubular duct communicating with the classification zone of the apparatus through the housing wall. The porous tubular duct is surrounded by a non-porous tubular casing forming an annulus connected to a source of gas under pressure. Control over the quantities of tailings recycled and over quantities of contaminants removed is exercised by varying the amount and pressure of gas introduced through the gas flow passages.
REFERENCES:
patent: 910196 (1909-01-01), Hess
patent: 2939638 (1960-06-01), Haigh et al.
patent: 3038672 (1962-06-01), Langsetmo et al.
patent: 3688991 (1972-09-01), Andrews
Bepex Corporation
Lazarus Richard B.
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