Apparatus and process for the production of grit free finely dis

Details Apparatus and process for the production of grit free finely dis Apparatus and process for the production of grit free finely dis

1974-02-11

1976-05-11

Lutter, Frank W.

Classifying, separating, and assorting solids

With heat treatment

209134, 209140, 209154, B07B 701

Patent

active

039561062

ABSTRACT:
An apparatus is provided for removal of grit from a finely dispersed solid containing gas stream serving for the pneumatic conveyance of this material, the apparatus comprising a closed separator housing having a funnel shaped lower portion, a supply tube for the conveying gas stream opening laterally in the upper part of the housing, an outlet tube (in a given case connected to a vacuum source) for purified finely dispersed solid disposed opposite the supply tube in the upper part of the housing, a vertically disposed connecting piece between the lower end of the funnel shaped lower portion and a discharge valve, an axially disposed cap shaped displacement member open at its lower end in said connecting piece and of lesser diameter whereby an annular gap is formed between the displacement member and the connecting piece and a supply tube for furnishing a secondary gas stream to the interior of said displacement member. There is also described the process of removing the grit from the finely divided solid using this apparatus.

REFERENCES:
patent: 572091 (1896-11-01), Marsden
patent: 1504439 (1924-08-01), France
patent: 1846210 (1932-02-01), Kramer
patent: 1873395 (1932-08-01), Hallam et al.
patent: 2177378 (1939-10-01), Schorn et al.
patent: 2963152 (1960-12-01), Leslie et al.
patent: 3278026 (1966-10-01), Bishard
patent: 3308945 (1967-03-01), Oja
patent: 3365058 (1968-01-01), Petersen

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