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    METHOD AND ARRANGEMENT FOR GENERATING STEAM AT A DIGESTER PLANT OF A CHEMICAL PULP MILL
    58.
    发明公开
    METHOD AND ARRANGEMENT FOR GENERATING STEAM AT A DIGESTER PLANT OF A CHEMICAL PULP MILL 有权
    方法及系统化粪池系统的化学浆料厂产生蒸汽

    公开(公告)号：EP3114274A1

    公开(公告)日：2017-01-11

    申请号：EP15714548.3

    申请日：2015-03-04

    申请人： Andritz Oy

    发明人： ENGSTRÖM, Johan ,  KETONEN, Päivi ,  KOISTINEN, Peter

    IPC分类号： D21C7/10 ,  D21C7/14 ,  D21C11/00

    CPC分类号： D21C11/0042 ,  D21C1/02 ,  D21C7/10 ,  D21C7/14

    摘要： The present invention relates to a method of producing steam at a digester plant of a chemical pulp mill. Black liquor is discharged from the digester at a first temperature and pressure. The black liquor is treated in a flash tank for generating flashed black liquor and flash steam at a second temperature and a second pressure, which are lower than the first temperature and pressure. The flashed black liquor is taken for further treatment to the evaporation plant. The flash steam is led to an indirect heat exchange contact with clean liquid in the reboiler for boiling the liquid and for generating steam. The steam is led from the reboiler into a fan or compressor for increasing the steam pressure to a third pressure, which is higher than the second pressure and for adjusting the pressure of the steam in the flash tank. Steam at a third pressure is used for pretreating comminuted cellulosic fiber material, such as chips, prior to cooking.

    摘要翻译： 本发明涉及在化学纸浆厂的蒸煮植物中产生蒸汽的方法。 黑液从蒸煮器在第一温度和压力排出。 黑液中，用于产生一个闪蒸罐闪蒸处理黑液和闪蒸蒸汽在第二温度和第二压力，其低于第一温度和压力下。 闪蒸黑液被取为处理进一步到蒸发装置。 该闪蒸蒸汽导致在再沸器沸腾液体清洁液间接换热接触，并产生蒸汽。 的蒸汽从所述再沸器为风扇或压缩机的蒸汽压力增加至第三压力，所有这些比第二压力和用于调整蒸汽的压力在闪蒸罐更高的LED。 蒸汽在第三压力被用于预处理粉碎的纤维素纤维材料，颜色：诸如芯片，现有烹调。

    Implementation of dissolved solids profiling
    60.
    发明公开
    Implementation of dissolved solids profiling 失效
    仿形溶解固体

    公开(公告)号：EP1878827A3

    公开(公告)日：2008-06-18

    申请号：EP07119409.6

    申请日：1994-07-20

    申请人： Andritz Inc.

    发明人： Marcoccia, Bruno S. ,  Prough, J. Robert ,  Laakso, Richard O. ,  Chasse, R. Fred

    IPC分类号： D21C7/00 ,  D21C3/22 ,  D21C3/24 ,  D21C7/12 ,  D21C7/14 ,  D21C9/02 ,  D21C11/04 ,  D21G7/00

    CPC分类号： D21C3/02 ,  D21C3/022 ,  D21C3/22 ,  D21C3/224 ,  D21C3/24 ,  D21C7/00 ,  D21C7/12 ,  D21C7/14 ,  D21C9/02 ,  D21C11/0021 ,  D21C11/04 ,  D21G7/00

    摘要： Digester systems for producing paper pulp form comminuted cellulosic fibrous material take into account the level of dissolved organic materials (DOM), such as lignin, hemi-cellulose maintaining the DOM level at about 100 g/l throughout the cook (particulary kraft cook). In order to make sure there is sufficient liquid to slurry the material in the feed system of a two vessel, som liquid is withdrawn from the circulation conduits between the digester and impregnation vessel, cooled, and fed to the feed system. In a vapor phase digester, the level of liquid at the top of the digester is more precisely controlled by circulating some of the withdrawn liquid from a circulatory loop of the digester to the level tank associated with the feed system. An in-line drainer may be provided in the feed system between a make-up liquor pump a liquid inlet conduit leading to the top of an impregnation vessel. Within the digester, a set of extraction/dilution screens is provided specifically positioned and spaced from each other, and with respect to a reintroduction conduit opening, so that mixing of different DOM concentration liquids is minimized.