【発明の名称】蒸解カンヘの改良されたチップ供給システム

Japanese Patent JP3292854

B2

A chip feeding system for a continuous digester provides for a greater rate of delivery of chip slurry to the digester, and is much less expensive than conventional chip feeding systems, typically being only 40-50% of the height of the conventional system. An atmospheric vessel may be connected at the bottom thereof to a slurry pump which pumps the chip slurry to a conventional high pressure feeder. A recirculation loop for returning liquid from the feeder to the vessel may include an atmospheric level tank, and a liquid cooler. The vessel may have one dimensional convergence and side relief, and instead of a conventional cylindrical chip bin, the chip bin may have a hopper having two transitions with one dimensional convergence and side relief. The chip bin also may be at atmospheric pressure so that no low pressure feeder between the bin and vessel is necessary. Alternatively, the vessel may be pressurized while an atmospheric-pressure level tank is provided, the high pressure feeder being mounted directly at ground level.

WO/1995/034712	IMPROVED CHIP FEEDING FOR A CONTINUOUS DIGESTER
WO/2015/062736	LIGNOCELLULOSIC BIOMASS HYDROLYSIS WITHOUT ENZYMES OR ACID CATALYSTS
WO/2007/063171	PROCESS FOR PRODUCING CHEMI-MECHANICAL PULP

Plow, Jay Robert

JP50221596A

June 17, 2002

May 23, 1995

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Andritz Incorporated

D21C1/02; D21C3/24; D21C7/06; (IPC1-7): D21C7/06

JP60231888A
JP333287A

【文献】特許2889703(JP,B2)
【文献】特許2991500(JP,B2)
【文献】米国特許5302247(US,A)
【文献】米国特許4071399(US,A)
【文献】米国特許4958741(US,A)

Shizuo Nakamura (2 outside)

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