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1. 发明申请

WO2017200470A1 METHOD FOR GENERATION OF CLEAN STEAM IN A CONTINUOUS DIGESTER SYSTEM 审中-公开
标题翻译：在连续消化系统中产生清洁蒸汽的方法
公开(公告)号：WO2017200470A1
公开(公告)日：2017-11-23
申请号：PCT/SE2017/050511
申请日：2017-05-16
申请人： VALMET AB
发明人： OLSSON, Krister , MIETTINEN, Jari , MIETTINEN, Keyla , LJUNGKVIST, Kjell
IPC分类号： D21C11/06 , D21C1/02
摘要： The invention relates to an improved method for generating clean steam in a digester plant of a chemical pulp mill. By feeding a steam-to-steam converter (SSC) with venting steam from a black liquor flash tank (FT) as well as venting steam from chip steaming (SV) could the volume of clean steam produced be increased by over 40-50%, and to such an extent that the volume of clean steam covers the needs for preheating of chips in the digester system also in severe operational conditions. The total consumption of clean steam from the steam net of the mill may be reduced and used for other purposes such as electricity production, which meets the requirements for converting the pulp mill to an environmental friendly pulp mill.
摘要翻译：本发明涉及一种用于在化学纸浆厂的消化装置中产生清洁蒸汽的改进方法。通过向蒸汽 - 蒸汽转化器（SSC）供应来自黑液闪蒸罐（FT）的排放蒸汽以及来自蒸馏（SV）的排放蒸汽，所产生的清洁蒸汽的体积可以增加超过40-50％并且达到这样的程度，即在苛刻的操作条件下，清洁蒸汽量也满足蒸煮器系统中的碎片预热需求。来自工厂蒸汽网的清洁蒸汽的总消耗量可能会减少，并用于其他用途，例如电力生产，这符合将纸浆厂转换为环保纸浆厂的要求。

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