D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
92/57.2
D21C 7/08 (2006.01) B01J 3/02 (2006.01) B01J 3/04 (2006.01)
Patent
CA 1055756
S P E C I F I C A T I O N TITLE: STATIC DISCHARGE DEVICE AND METHOD FOR FIBER DISCHARGE PROM A PRESSURIZED DIGESTER INVENTOR: Johan L. Michelsen ABSTRACT OF THE DISCLOSURE A static discharger includes a vertical casing connected to a pressurized pulping digester for receiving a stream of fibrous material and having a valve isolated scrap collector positioned on its lower end. A discharge neck on which a blow valve is mounted extends from the casing above the scrap collector and is covered with a grid plate having self-cleaning openings. A pipe mounted tan- gentially on the casing introduces flooding liquid thereto while a similar pipe may be located on the scrap collector. A sealed casing cleanout opening may be provided. No moving parts are involved since discharger agitations re- sult from the flooding media. Heavy foreign body impurities in the stream sink to the scrap collector where they are removed without process interruption. Buoyant objects remain suspended in the liquid. Blow valve plugging is eliminated. For higher fiber consistency, a grid plate wiping agitator may be advantageously installed in the casing.
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