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公开(公告)号:US20040079819A1
公开(公告)日:2004-04-29
申请号:US10280146
申请日:2002-10-25
Applicant: ALSTOM (Switzerland) Ltd.
Inventor: Michael M. Chen , Jianrong Chen , David M. Podmokly , David C. Wasz
IPC: B02C023/24
CPC classification number: B02C23/02 , B65G53/4691 , F23K1/00 , F23K3/02 , F23K2201/1006 , F23K2201/103 , F23K2203/201 , F23K2900/03001
Abstract: An airlock-feeder for a coal pulverizing system which includes a raw coal bunker, a pulverizer, and a vertically extending coal duct forming a raw coal flow path from the raw coal bunker to the pulverizer. The airlock-feeder comprises upper, middle and lower, vertically separated valves disposed in the raw coal flow path. Each valve has a seal member, a disc pivotally mounted at a centerline, and a pneumatic actuator. At least one or two of the valves are closed at any given time thereby providing a positive air-tight seal.
Abstract translation: 一种用于煤粉碎系统的气闸给料机,其包括原煤仓,粉碎机和形成从原煤仓到粉碎机的原煤流通道的垂直延伸煤通道。 气闸装置包括设置在原煤流路中的上,中,下垂直分离的阀。 每个阀都有一个密封件,一个可枢转地安装在一个中心线上的圆盘,一个气动执行器。 至少一个或两个阀在任何给定时间都被关闭,从而提供正气密密封。