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    • 1. 发明申请
    • ROLLER MILL WITH SEALING GAS IMPINGEMENT
    • 滚子铣刀与密封气体冲击
    • US20110108643A1
    • 2011-05-12
    • US12990966
    • 2009-03-11
    • Thomas KrauseWerner BischoffTieu Le Van
    • Thomas KrauseWerner BischoffTieu Le Van
    • B02C4/00
    • B02C15/04B02C2015/002
    • In a roller mill (1, 46), in particular a coal mill, comprising a mill housing (2) comprising a rotating grinding table (4) with grinding tools located thereon, in particular grinding rolls (5), a grind material feed (9), a classifier (8), at least one grind material exit (11), at least one sealing gas seal (14, 16, 17, 19) that seals off the mill interior (31) from the outside atmosphere in the area of moving mill elements and a carrier gas feed (12), wherein the roller mill (1, 46) can be operated in pressurized mode, a solution is to be provided that facilitates the use of recirculated stack gas as sealing gas without significantly affecting the mill environment. This is accomplished in that at least the at least one sealing gas seal (14, 16) comprises a first sealing chamber (22a, 22b, 22c) and a second sealing chamber (23a, 23b, 23c), wherein the first sealing chamber (22a, 23a, 22b, 22c) is acted upon by a sealing gas having a sealing gas pressure that is greater than the mill pressure in the mill interior (31) during milling operation and the second sealing chamber (23a, 23b, 23c) is acted upon by a sealing gas having a sealing gas pressure that is lower than the sealing gas of the first sealing chamber (22a, 22b, 22c) and wherein a take-off, in particular a line (24a, 24b, 24c), is disposed at the second sealing chamber (23a, 23b, 23c), said take-off discharging the sealing gas from the second sealing chamber (23a, 23b, 23c).
    • 在一个辊磨机(1,46)中,特别是一台磨煤机,它包括一个磨机壳体(2),该磨机壳体(2)包括一个带有研磨工具的旋转研磨台(4),特别是研磨辊(5),研磨材料进料 9),分级器(8),至少一个研磨材料出口(11),至少一个密封气密封件(14,16,17,19),其密封所述磨机内部(31)与所述区域中的外部气氛 的移动的轧机元件和载气进料(12),其中辊磨机(1,46)可以在加压模式下操作,提供方便使用再循环的气体作为密封气体的溶液,而不会显着地影响 磨坊环境。 这是通过至少一个密封气体密封件(14,16)包括第一密封室(22a,22b,22c)和第二密封室(23a,23b,23c)来实现的,其中第一密封室 22a,23a,22b,22c)在铣削操作期间被具有密封气体压力的密封气体作用在磨机内部(31)中的磨机压力,并且第二密封腔室(23a,23b,23c)是 其特征在于,具有密封气体压力低于第一密封室(22a,22b,22c)的密封气体的密封气体,并且其中特别是线(24a,24b,24c)是 设置在第二密封室(23a,23b,23c)处,所述排出口从第二密封室(23a,23b,23c)排出密封气体。