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1. 发明授权

EP1644574B1 METHOD FOR TREATING PULP IN CONNECTION WITH THE BLEACHING OF CHEMICAL PULP 有权
标题翻译：法纸浆放入与漂白浆连接处理
公开(公告)号：EP1644574B1
公开(公告)日：2013-03-06
申请号：EP04742116.9
申请日：2004-06-17
申请人： Andritz Oy
发明人： HENRICSON, Kaj , PIKKA, Olavi , TERVOLA, Pekka
IPC分类号： D21C9/02 , D21C9/08 , D21C9/153 , D21C9/14
CPC分类号： D21C9/14 , D21C9/02 , D21C9/08 , D21C9/153

2. 发明授权

EP1242678B1 METHOD FOR BLEACHING PULP WITH CHLORINE DIOXIDE 无效
标题翻译： VERFAHREN ZUM BLEICHEN VON PULPE DURCH CHLORDIOXYD
公开(公告)号：EP1242678B1
公开(公告)日：2003-09-17
申请号：EP00956547.4
申请日：2000-08-25
申请人： Andritz Oy
发明人： ALASTALO, Jaana , PIKKA, Olavi , VEHMAA, Janne
IPC分类号： D21C9/14
CPC分类号： D21C9/02 , D21C9/14
摘要： A method of treating pulp with chlorine dioxide according to which clorine dioxide is mixed in the pulp and the mixture thus produced is fed into a treatment vessel (42) in which the chlorine dioxide treatment is carried out at a temperature of 40-90 DEG C and at a pH of 1.5-6.5. The pulp is discharged from the treatment vessel in a closed space straight to a chlorine dioxide stage washer (44) ensuring that no detrimental amounts of residual dioxide remain in the pulp flowing to the washer.
摘要翻译：用二氧化氯处理纸浆的方法，其中将二氧化氯混合在纸浆和由此产生的混合物中的二氧化氯进料到处理容器（42）中，二氧化氯处理在40-90℃的温度下进行 pH为1.5-6.5。纸浆在封闭空间中直接从处理容器中排出到二氧化氯级洗涤器（44），确保在流入洗衣机的纸浆中不残留有害的残余二氧化碳。

3. 发明授权

EP1125016B1 METHOD AND APPARATUS FOR THE THICKENING OF FIBER SUSPENSIONS 有权
标题翻译：方法和设备增稠纤维悬浮液
公开(公告)号：EP1125016B1
公开(公告)日：2003-03-26
申请号：EP99946209.6
申请日：1999-09-22
申请人： Andritz Oy
发明人： LAINE, Antero , LJOKKOI, Risto , PIKKA, Olavi , SIIK, Sami , QVINTUS, Harri, Ahlstrom Machinery Inc.
IPC分类号： D21C9/18 , D21F1/66
CPC分类号： D21C9/18 , D21F1/66
摘要： The present invention relates to the thickening of pulp suspensions. A low consistency pulp suspension is fed to a pre-thickener (10) through an inlet conduit (18). A layer of thickened pulp, formed on a filter surface (22), is pushed along the filter surface by a cleaning member to the discharge end of the pre-thickener and is discharged through the outlet (20). The cleaning member comprises a rotating shaft (30), on which shaft at least one screw thread (32) is fixed so as to leave a free space between the shaft and the screw thread. Essentially non-thickened pulp is allowed to flow through the apparatus via this space.

4. 发明授权

EP1805360B1 APPARATUS AND METHOD FOR WASHING PULPS 有权
标题翻译：用于洗涤灌浆的设备和方法
公开(公告)号：EP1805360B1
公开(公告)日：2016-07-13
申请号：EP05779685.6
申请日：2005-09-07
申请人： Andritz Oy
发明人： PIKKA, Olavi , TERVOLA, Pekka , RÖNKÖNHARJU, Hannu
IPC分类号： D21C9/06 , D21C9/02 , D21C9/10
CPC分类号： D21C9/06 , D21C9/1057

5. 发明公开

EP1644574A1 METHOD FOR TREATING PULP IN CONNECTION WITH THE BLEACHING OF CHEMICAL PULP 有权
标题翻译：法纸浆放入与漂白浆连接处理
公开(公告)号：EP1644574A1
公开(公告)日：2006-04-12
申请号：EP04742116.9
申请日：2004-06-17
申请人： Andritz Oy
发明人： HENRICSON, Kaj , PIKKA, Olavi , TERVOLA, Pekka
IPC分类号： D21C9/02 , D21C9/08 , D21C9/153 , D21C9/14
CPC分类号： D21C9/14 , D21C9/02 , D21C9/08 , D21C9/153
摘要： The present invention relates to a method of treating pulp in connection with the bleaching of chemical pulp, said method comprising treating of the pulp in at least an ozone, chlorine dioxide or alkali phase and thereafter washing of the pulp in a washing device having an E10 value of at least 3, whereby washing liquid is introduced into the washing device countercurrently in relation to the pulp and filtrate is discharged from the washing device. At first the pulp is washed in the washing device so that the washing liquid is filtrate obtained from the washing device itself and the amount of thus circulated washing liquid is 1.5 - 3.5 t/adt pulp, whereafter the pulp is washed with liquid introduced from outside the washing device, the amount of said liquid being such that the dilution factor in the latter wash is less than 1 t/adt and that the total amount of washing liquid used in the washing device is such that the dilution factor is more than 0 t/adt.

6. 发明公开

EP1805360A1 APPARATUS AND METHOD FOR WASHING PULPS 有权
标题翻译：用于洗涤灌浆的设备和方法
公开(公告)号：EP1805360A1
公开(公告)日：2007-07-11
申请号：EP05779685.6
申请日：2005-09-07
申请人： Andritz Oy
发明人： PIKKA, Olavi , TERVOLA, Pekka , RÖNKÖNHARJU, Hannu
IPC分类号： D21C9/06 , D21C9/02 , D21C9/10
CPC分类号： D21C9/06 , D21C9/1057
摘要： The present invention relates to an apparatus and a method for treating pulp. The apparatus comprises at least one water-permeable surface rotating around a shaft, onto which surface a layer is formed of pulp, means for feeding the pulp being treated into the apparatus, means f or discharging the treated pulp from the apparatus and means for removing filtrates from the apparatus. A characterizing feature is that the apparatus is provided with at least one inside structure for forming at least two treatment sections in the apparatus in such a way that each section is connected to at least means for feeding one pulp so that the pulps being treated in the sections originate from essentially different treatment stages, to means for discharging the pulp so that the treated pulps are discharged from the apparatus separately from each other, and to means for removing filtrates so that the filtrates are removed from the apparatus separately from each other.
摘要翻译：处理纸浆的装置和方法该设备包括至少一个围绕轴旋转的透水表面，在该表面上形成由纸浆形成的层，用于将待处理的纸浆供给到设备中的装置，从设备排出处理过的纸浆的装置，以及用于去除从设备中过滤。其特征在于所述设备具有至少一个内部结构，用于在所述设备中形成至少两个处理区段，使得每个区段连接至少一个用于供给一个纸浆的装置，从而在所述装置中处理的纸浆部分来源于基本上不同的处理阶段，用于排出纸浆的装置使得处理过的纸浆彼此分开地从装置排出，并且涉及用于移除滤液的装置，以便将滤液从装置中彼此分离地移除。

7. 发明授权

EP1242678B9 METHOD FOR BLEACHING PULP WITH CHLORINE DIOXIDE 无效
标题翻译：方法漂白纸浆二氧化氯
公开(公告)号：EP1242678B9
公开(公告)日：2004-06-09
申请号：EP00956547.4
申请日：2000-08-25
申请人： Andritz Oy
发明人： ALASTALO, Jaana , PIKKA, Olavi , VEHMAA, Janne
IPC分类号： D21C9/14
CPC分类号： D21C9/02 , D21C9/14
摘要： A method of treating pulp with chlorine dioxide according to which clorine dioxide is mixed in the pulp and the mixture thus produced is fed into a treatment vessel (42) in which the chlorine dioxide treatment is carried out at a temperature of 40-90 DEG C and at a pH of 1.5-6.5. The pulp is discharged from the treatment vessel in a closed space straight to a chlorine dioxide stage washer (44) ensuring that no detrimental amounts of residual dioxide remain in the pulp flowing to the washer.

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