Classifying – separating – and assorting solids – Plural – diverse separating operations – Sifting and stratifying
Patent
1978-09-15
1980-05-20
Miles, Tim R.
Classifying, separating, and assorting solids
Plural, diverse separating operations
Sifting and stratifying
209239, 209452, B03B 700
Patent
active
042038324
ABSTRACT:
A device for separating heavier inpurities from solid bodies in a fluid flow comprising a trough-like casing accommodating a horizontal rotatable drum with a screen cylindrical side wall and groove-like elements move the impurities in the rotating drum towards an appliance intended to separate, receive and unload the impurities. The appliance is secured to the drum at the inlet for the fluid and the elements for moving the impurities are made as grooves arranged spirally in the side wall of the drum throughout its length. Each groove has a cylindrical side wall whose external surface protrudes beyond the external surface of the side wall of the drum, and two face walls are arranged perpendicularly to the cylindrical side wall. The external surface of one face wall directed towards the separating, receiving and unloading appliance serves for moving smaller impurities falling out of the screen side wall of the drum towards the appliance while the internal surfaces of the grooves serves for moving larger impurities towards the appliance. The device ensures a reduction of hydraulic resistance to the flow of fluid and also increases the efficiency of separation of impurities.
REFERENCES:
patent: 1450515 (1923-04-01), Richardson
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