Apparatus for discharging fine-grained solids

B - Operations – Transporting – 65 – D

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B65D 83/06 (2006.01) B01J 3/02 (2006.01) B01J 8/00 (2006.01) B65G 53/14 (2006.01)

Patent

CA 1260441

ABSTRACT OF THE DISCLOSURE An apparatus for discharging fine-grained solids from a system which is under a high pressure into a re- ceiving space which is under a lower pressure. The appa- ratus comprises means forming a U-shaped siphon having a vertical entrance leg, a vertical discharge leg, and a connection at a bottom of the siphon between the legs; a solid supply line leading from the system under a higher pressure to the entrance leg of the U-shaped siphon; means forming a solids outlet on the discharge leg for connecting the discharge leg of the U-shaped siphon to the receiving space; and a supply line for supplying entraining gas to solids contained in a lower portion of the siphon. The discharge leg is shorter than the entrance leg. A shut-off device for opening and closing the solids outlet of the discharge leg is biased opposite to the direction of flow by a force which slightly exceeds a force which is exerted on the shut-off device in the direction of flow by pressure in the discharge leg.

478837

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