公开(公告)号：US08647469B2

公开(公告)日：2014-02-11

申请号：US13817556

申请日：2010-08-25

申请人： Daniel Trolin ,  Hans Furhem

发明人： Daniel Trolin ,  Hans Furhem

IPC分类号： D21C3/26

CPC分类号： D21C1/06 ,  D21C1/02

摘要： The method, system and a withdrawal screen section are for the impregnation of chips during the manufacture of chemical pulp. Chips are both steamed and impregnated in a low pressure impregnation vessel, using pressurized hot spent cooking liquor BL as the main part of the impregnation liquid. The hot spent cooking liquor produces most of the steam BLST necessary for steaming the chips. At least two independent first and second screen rows, SC1 and SC1b respectively, are installed in order to improve the process in the impregnation vessel. The first screen row withdraws acidified treatment liquor for disposal which otherwise would be a parasitic acidified waste fluid in the system. The second screen row recirculates treatment fluid back to center of treatment vessel in order to even out the pH profile over the cross section of the vessel.

摘要翻译： 该方法，系统和提取筛选部分用于在制造化学纸浆期间浸渍碎屑。 使用加压的热废蒸煮液BL作为浸渍液的主要部分，将芯片蒸干并浸渍在低压浸渍容器中。 热的蒸煮酒产生大部分蒸汽BLST所需的蒸汽。 分别安装至少两个独立的第一和第二屏幕行SC1和SC1b，以改善浸渍容器中的工艺。 第一个筛网排取出酸化处理液进行处理，否则将是系统中寄生的酸化废液。 第二屏幕排将处理流体再循环回处理容器的中心，以便在容器的横截面上均匀地排出pH分布。

公开(公告)号：US20130240167A1

公开(公告)日：2013-09-19

申请号：US13817556

申请日：2010-08-25

申请人： Daniel Trolin ,  Hans Furhem

发明人： Daniel Trolin ,  Hans Furhem

IPC分类号： D21C1/06

CPC分类号： D21C1/06 ,  D21C1/02

摘要： The method, system and a withdrawal screen section are for the impregnation of chips during the manufacture of chemical pulp. Chips are both steamed and impregnated in a low pressure impregnation vessel, using pressurized hot spent cooking liquor BL as the main part of the impregnation liquid. The hot spent cooking liquor produces most of the steam BLST necessary for steaming the chips. At least two independent first and second screen rows, SC1 and SC1b respectively, are installed in order to improve the process in the impregnation vessel. The first screen row withdraws acidified treatment liquor for disposal which otherwise would be a parasitic acidified waste fluid in the system. The second screen row recirculates treatment fluid back to center of treatment vessel in order to even out the pH profile over the cross section of the vessel.

摘要翻译： 该方法，系统和提取筛选部分用于在制造化学纸浆期间浸渍碎屑。 使用加压的热废蒸煮液BL作为浸渍液的主要部分，将芯片蒸干并浸渍在低压浸渍容器中。 热的蒸煮酒产生大部分蒸汽BLST所需的蒸汽。 分别安装至少两个独立的第一和第二屏幕行SC1和SC1b，以改善浸渍容器中的工艺。 第一个筛网排取出酸化处理液进行处理，否则将是系统中寄生的酸化废液。 第二屏幕排将处理流体再循环回处理容器的中心，以便在容器的横截面上均匀地排出pH分布。