公开(公告)号：US4678574A

公开(公告)日：1987-07-07

申请号：US804349

申请日：1985-12-03

Applicant: Tapani Niiranen ,  Erkki Savolainen ,  Raimo Kohonen

Inventor： Tapani Niiranen ,  Erkki Savolainen ,  Raimo Kohonen

IPC: D21D5/02 ,  B01D33/00 ,  B01D33/21 ,  B01D33/26

CPC classification number: B01D33/21 ,  B01D33/804

Abstract: A method for improving the operation of a disc filter used for the filtering of fluids containing solid matter such as fibers. Known filtering methods have the drawback that the rate of water exhaustion is limited, because a vacuum tends to be created inside the sectors when the filtered fluid is drained by suction from the central channel of the disc filter. This drawback is an obstacle to increasing the speed of rotation and therefore to increasing the capacity of the disc filter. With the method of the present invention, this problem is solved by providing the disc filter with a means of admitting ambient air into the disc sectors and the central shaft channel and/or with equipment for blowing air into the sectors and the channel to remove the filtered fluid from them.

Abstract translation: 一种用于改善用于过滤含有固体物质如纤维的流体的盘式过滤器的操作的方法。 已知的过滤方法具有这样的缺点：排水速率受到限制，因为当滤过的流体通过来自盘式过滤器的中心通道的抽吸排出时，在扇区内容易产生真空。 这个缺点是提高旋转速度并因此增加盘式过滤器的容量的障碍。 利用本发明的方法，通过为盘式过滤器提供将环境空气进入盘扇区和中心轴通道的装置和/或用于将空气吹入扇区和通道以除去 过滤后的液体。

公开(公告)号：US4608174A

公开(公告)日：1986-08-26

申请号：US714096

申请日：1985-03-20

Applicant: Seppo Kokkonen ,  Antti Kuhasalo ,  Erkki Savolainen ,  Juha Titoff ,  Jorma Vento ,  Pentti Vikio

Inventor： Seppo Kokkonen ,  Antti Kuhasalo ,  Erkki Savolainen ,  Juha Titoff ,  Jorma Vento ,  Pentti Vikio

IPC: B04C5/02 ,  B04C5/12 ,  B04C5/14 ,  B04C5/28 ,  D21D5/24 ,  B04C3/04

CPC classification number: D21D5/24 ,  B04C5/02 ,  B04C5/12 ,  B04C5/14 ,  B04C5/28

Abstract: The present invention concerns a feed and accept duct system (4) for hydrocyclones (1), comprising common feed and accept ducts (7,8) which have by connecting tubes been connected to the parallel hydrocyclones. This type of construction is used, for instance, in purifying fiber suspensions, in which process the suspension is fed into the hydrocyclones (1) and the purified suspension is removed therefrom as a so-called accept fraction into the accept duct (8). It is essential in the invention that the connecting tubes of the feed and accept ducts (7,8) have been so placed on the different hydrocyclones (1) that the tubes are located substantially in parallel, that the feed and accept ducts have been formed inside a common shell (5) by dividing the space confined by it into two parallel ducts by means of a zigzag partition (6), and that the ends of the connecting tubes (11,12) are located at the folds formed by the bights of the partition, the partition confining the feed duct connecting tubes to be on the feed duct side and the accept duct connecting tubes to be on the accept duct side.

Abstract translation: 本发明涉及一种用于水力旋流器（1）的进料和接受管道系统（4），包括通过连接管连接到平行水力旋流器的共同进料和接收管道（7,8）。 这种类型的结构用于例如纤维悬浮液的净化，其中悬浮液被加入到水力旋流器（1）中，并且将纯化的悬浮液作为所谓的接受部分从其中去除到接受管道（8）中。 在本发明中，馈送和接纳管道（7,8）的连接管已经被放置在不同的水力旋流器（1）上，管子基本上平行地定位，使得进料和接收管道已经形成 在共同的外壳（5）内部，通过将其被其限制的空间划分成两个平行的管道，通过之字形分隔（6），并且连接管（11,12）的端部位于由弯道形成的褶皱处 分隔件限定进料管道连接管在进料管道侧，而接管管道连接在待管道侧。

公开(公告)号：US4995991A

公开(公告)日：1991-02-26

申请号：US326311

申请日：1989-03-21

Applicant: Risto Ljokkoi ,  Tapani Niiranen ,  Pekka Purho ,  Erkki Savolainen ,  Jari Siitonen

Inventor： Risto Ljokkoi ,  Tapani Niiranen ,  Pekka Purho ,  Erkki Savolainen ,  Jari Siitonen

IPC: D21D5/04

CPC classification number: D21D5/046

Abstract: A disc filter and method of operating same is provided in which a liquid jet is intermittently used to detach pulp cake from the disc filter. In operation, mechanical or electrical means actuate a nozzle to spray pressurized fluid at a portion of the boundary between the surface of each disc filter segment and its associated pulp cake. The nozzle is actuated to begin spraying as respective segments move into register with the nozzle and are cause to discontinue spraying prior to moving out of register when the loosened pulp cake falls from the segments by gravity. the improved control of pulp cake removal reduces use of washing fluid and results in improved pulp cake consistency.

公开(公告)号：USRE36297E

公开(公告)日：1999-09-14

申请号：US251963

申请日：1994-06-01

Applicant: Jukka Heino ,  Raimo Kohonen ,  Erkki Savolainen

Inventor： Jukka Heino ,  Raimo Kohonen ,  Erkki Savolainen

IPC: B01D20060101 ,  B01D33/09 ,  B01D33/13 ,  B01D33/46 ,  B01D33/76 ,  B01D36/00 ,  D21C9/06 ,  D21C9/18 ,  D21D5/06 ,  D21F1/60 ,  D21F1/66 ,  D21F1/76 ,  D21F9/04 ,  D21G3/00 ,  B01D33/06 ,  B01D33/067 ,  B01D33/50 ,  B01D33/54

CPC classification number: B01D33/09 ,  B01D36/001 ,  D21C9/18 ,  D21D5/06 ,  D21F1/60 ,  D21F1/76 ,  D21F9/043 ,  D21G3/005

Abstract: A method and apparatus for fibrous suspensions in the wood processing industry and more specifically to a so-called drum cylinder, the basic construction of which comprises a vessel, into which suspension being thickened is supplied and a wire-surface cylinder rotating in the vessel. The drum filter is characterized in that the closure member of the drum filter has a channel for leading gas from the filtrate tubes through the compartments of the distribution chamber to the outside of the closing member. The method is characterized in that the operation phase of the filter cylinder is divided into five separate stages. In the first stage, when the cylinder descends on to the vessel, air and the initial filtrate are discharged from the filtrate components and the formation of the pulp web on the wire surface begins. In the second stage, filtrate is discharged with vacuum and the formation of the pulp web continues. In the third stage, pulp web is dried by means of vacuum when said part of the web has risen with the cylinder from the vessel. In the fourth stage, a so-called removal stage, the pulp web is removed from the wire surface and discharged from the apparatus. In the fifth stage, a so-called washing stage, the wire surface is washed.

Abstract translation: PCT No.PCT / FI90 / 00169 Sec。 371日期1991年5月1日 102（e）日期1991年5月1日PCT归档1990年6月26日PCT公布。 出版物WO91 / 00768 日本1991年1月24日木材加工业中的纤维悬浮液的方法和装置，更具体地涉及一种所谓的鼓筒，其基本结构包括容器，其中供应有增稠的悬浮液和一个线表面圆筒 在船上旋转 鼓式过滤器的特征在于，鼓式过滤器的关闭构件具有用于将来自滤液管的气体引导通过分配室的隔室到通道的通道到关闭构件的外部。 该方法的特点是将滤筒的运行阶段分为五个阶段。 在第一阶段，当气缸下降到容器时，空气和初始滤液从滤液组分排出，并且开始在丝表面上形成纸浆网。 在第二阶段，滤液真空排出，纸浆网的形成继续。 在第三阶段，当所述纸幅的一部分与所述滚筒从容器上升时，纸浆网被真空干燥。 在第四阶段中，所谓的去除阶段，将纸浆网从线表面移出并从设备中排出。 在第五阶段，所谓的洗涤阶段，电线表面被洗涤。

公开(公告)号：US5264138A

公开(公告)日：1993-11-23

申请号：US663877

申请日：1991-05-01

Applicant: Jukka Heino ,  Raimo Kohonen ,  Erkki Savolainen

Inventor： Jukka Heino ,  Raimo Kohonen ,  Erkki Savolainen

IPC: B01D20060101 ,  B01D33/09 ,  B01D33/13 ,  B01D33/46 ,  B01D33/76 ,  B01D36/00 ,  D21C9/06 ,  D21C9/18 ,  D21D5/06 ,  D21F1/60 ,  D21F1/66 ,  D21F1/76 ,  D21F9/04 ,  D21G3/00 ,  B01D33/06

CPC classification number: B01D33/09 ,  B01D36/001 ,  D21C9/18 ,  D21D5/06 ,  D21F1/60 ,  D21F1/76 ,  D21F9/043 ,  D21G3/005

Abstract: A method and apparatus for fibrous suspensions in the wood processing industry and more specifically to a so-called drum cylinder, the basic construction of which comprises a vessel, into which suspension being thickened is supplied and a wire-surface cylinder rotating in the vessel. The drum filter is characterized in that the closure member of the drum filter has a channel for leading gas from the filtrate tubes through the compartments of the distribution chamber to the outside of the closing member. The method is characterized in that the operation phase of the filter cylinder is divided into five separate stages. In the first stage, when the cylinder descends on to the vessel, air and the initial filtrate are discharged from the filtrate components and the formation of the pulp web on the wire surface begins. In the second stage, filtrate is discharged with vacuum and the formation of the pulp web continues. In the third stage, pulp web is dried by means of vacuum when said part of the web has risen with the cylinder from the vessel. In the fourth stage, a so-called removal stage, the pulp web is removed from the wire surface and discharged from the apparatus. In the fifth stage, a so-called washing stage, the wire surface is washed.

Abstract translation: PCT No.PCT / FI90 / 00169 Sec。 371日期1991年5月1日 102（e）日期1991年5月1日PCT归档1990年6月26日PCT公布。 出版物WO91 / 00768 日本1991年1月24日。木材加工工业中的纤维悬浮液的方法和装置，更具体地涉及所谓的鼓筒，其基本结构包括容器，其中供应有增稠的悬浮液， 表面圆筒在容器中旋转。 鼓式过滤器的特征在于，鼓式过滤器的关闭构件具有用于将来自滤液管的气体引导通过分配室的隔室到通道的通道到关闭构件的外部。 该方法的特点是将滤筒的运行阶段分为五个阶段。 在第一阶段，当气缸下降到容器时，空气和初始滤液从滤液组分排出，并且开始在丝表面上形成纸浆网。 在第二阶段，滤液真空排出，纸浆网的形成继续。 在第三阶段，当所述纸幅的一部分与所述滚筒从容器上升时，纸浆网被真空干燥。 在第四阶段中，所谓的去除阶段，将纸浆网从线表面移出并从设备中排出。 在第五阶段，所谓的洗涤阶段，电线表面被洗涤。