Solid material comminution or disintegration – Apparatus – Including means applying fluid to material
Patent
1978-10-04
1980-04-29
Lazarus, Richard B.
Solid material comminution or disintegration
Apparatus
Including means applying fluid to material
241 79, 241 80, B02C 1308, B02C 2312, B02C 2332
Patent
active
042002419
ABSTRACT:
A horizontal axis pulverizing and classifying apparatus fitted with special means for removing contaminants, such as abrasive particles, which reduce the capacity and efficiency of such apparatus. The contaminant 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 by means of which the quantity of contaminant tailings is removed by varying the amount and pressure of gas introduced. The apparatus may also include a plurality of gas flow apertures surrounding the classification zone and directed generally radially inward, and means for selectively and variably introducing gas to those apertures, for providing improved control over the contaminant take-out device.
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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