Blender for solid particulate material

Agitating – By injecting gas into mixing chamber

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Details

366137, 366150, B01F 1302

Patent

active

049782274

ABSTRACT:
Apparatus for blending solid particulate material which includes a center lift or blending column with gaseous fluid under pressure supplied to the bottom of the column for entraining material in the vessel and lifting it up through the column to circulate material within the vessel. Recycle channels are provided on the periphery of the vessel for withdrawing material at various heights and supplying it to the bottom of the vessel for recirculation through the lift column. Each of the recycled channels includes a plurality of vertically spaced apart inlet openings each with a baffle positioned therein to permit material to simultaneously enter the recycle channel at more than one point along the height of the vessel. These baffles may be equipped with operators to selectively position the baffle to control the flow of material into the recycle channel. The apparatus also includes an arrangement defining a seal leg at the bottom of the vessel to ensure proper recycle of material through the apparatus. The apparatus preferably is used with a bottom filling arrangement so that the energy used for supplying material to the vessel is utilized for blending material.

REFERENCES:
patent: 3216629 (1965-11-01), Goins
patent: 3386707 (1968-06-01), Brown
patent: 3756569 (1973-09-01), Wohlforth
patent: 4353652 (1982-10-01), Young
patent: 4478517 (1984-10-01), Hoppe et al.
patent: 4560285 (1985-12-01), Fisher
patent: 4573800 (1986-03-01), Lasso et al.

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