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公开(公告)号：US12077911B2
公开(公告)日：2024-09-03
申请号：US17097957
申请日：2020-11-13
CPC分类号： D21C3/228 , D21C3/24 , D21C9/02 , D21C9/06 , G01N33/343
摘要： A system and method are provided for predictive control of brown stock treatment at a pulp mill. Various online sensors generate output signals representative of actual values for respective process characteristics, each of which are directly or indirectly affected by adjustments to corresponding process variables. A controller uses the output signals or associated measurement data to dynamically set target values for the process characteristics based on a predicted impact of control responses for corresponding process variables. The controller further generates control signals to actuators associated with the respective process variables based on detected variations between the respective actual values and target values. Exemplary brown stock washing control systems may optimize various types of brown stock washing configurations, including for example vacuum drum washers, compaction baffle washers, chemiwashers, direct displacement washers and wash presses. Cloud-based analytics and machine learning may also be implemented to improve the control algorithms over time.
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公开(公告)号：US09915030B2
公开(公告)日：2018-03-13
申请号：US14662879
申请日：2015-03-19
摘要： According to one aspect of the present disclosure, a mechanism and method is provided to clean and remove or separate cellulose fibers from the source fibrous material without stressing and/or damaging the cellulose fibers. The mechanism includes an agitator that directs the washing fluid in a vertical direction into engagement with the fibrous material to effect maximum cleaning of the cellulose from the remainder of the fibrous material without damaging or stressing the cellulose, thereby providing cellulose that can enhance the strength and other beneficial characteristics of a biocomposite material formed using the cellulose.
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3.发明申请Method Of Removing Odors From Fibrous Materials Used In Forming Biocomposite Materials 审中-公开从形成生物复合材料中使用的纤维材料去除气味的方法公开(公告)号：US20170002514A1
公开(公告)日：2017-01-05
申请号：US14755603
申请日：2015-06-30
CPC分类号： D21C9/001 , D06L1/12 , D10B2201/01 , D21C7/12 , D21C7/14 , D21C9/005 , D21C9/007 , D21C9/02 , D21C9/06 , D21C9/10
摘要： A method to treat fibrous materials for use in the formation of a biocomposite material that significantly reduces or eliminates the odors emitted from the fibrous materials is provided. In the method, the fibers or fibrous materials are initially treated to extract the raw fiber from the source plant material and the remove unwanted fractions of the fiber, such as the hemicellulose, lignin, and pectin, among others, leaving only the intact cellulose fibers. These cellulose fibers are then further processed in a second step to remove the odor from the cellulose fibers. The second step includes a combination of a second chemical treatment, dehumidification, and/or a cold plasma modification to render the cellulosic fibers odorless.
摘要翻译： 提供了一种处理用于形成生物复合材料的纤维材料的方法，其显着减少或消除了从纤维材料排出的气味。 在该方法中，首先处理纤维或纤维材料以从源植物材料中提取原纤维，并除去纤维中的不想要的部分，例如半纤维素，木质素和果胶等，仅留下完整的纤维素纤维 。 然后在第二步骤中进一步处理这些纤维素纤维以除去纤维素纤维的气味。 第二步包括第二化学处理，除湿和/或冷等离子体改性的组合，以使纤维素纤维无臭。
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公开(公告)号：US20150361617A1
公开(公告)日：2015-12-17
申请号：US14650781
申请日：2013-12-19
申请人： VALMET AB
发明人： Tobias Lööf , Patrik Pettersson , Jonas Orgård , Hans Lövgren , Per Wallin , Peter Nykvist , Jonas Magnusson
IPC分类号： D21F1/66
摘要： Apparatus for washing and/or dewatering cellulose pulp is disclosed including a movable permeable surface in a pulp transportation chamber having a chamber gap above the movable permeable surface, a pulp distributor for distributing pulp onto the movable permeable surface, a throttle having a throttle gap width and an adjustable throttle adjuster to remotely adjust the throttle gap width so that a volume of pulp flow into the pulp distributor is equal to or greater than the volume of pulp flow out of the distributor during operation.
摘要翻译： 公开了一种用于洗涤和/或脱水纤维素纸浆的设备，其包括在可移动可渗透表面上方具有腔室间隙的纸浆输送室中的可移动可渗透表面，用于将纸浆分配到可移动可渗透表面上的纸浆分配器，具有节流间隙宽度 以及可调节的节气门调节器，以远程调节节流间隙宽度，使得流入纸浆分配器的纸浆体积等于或大于在操作期间从分配器流出的纸浆流量。
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公开(公告)号：US09200407B2
公开(公告)日：2015-12-01
申请号：US14243152
申请日：2014-04-02
摘要： Apparatus for washing and dewatering pulp and a system for controlling this apparatus are provided. The apparatus includes a pair of rotatable press rolls installed in vats and including a press nip therebetween, an inlet for feeding the pulp to the press nip, with one of the press rolls being movable in relation to the other and in which the processing of the pulp is determined by the number of variable operating parameters. The system includes apparatus for utilizing the distance between the press rolls as a variable operating parameter, for setting a desired value for a specific control parameter, for measuring the specific control parameter, and for adjusting at least two of the variable operating parameters during operation to maintain the difference between the desired value and the measured value of the specific control parameter below a predetermined difference.
摘要翻译： 提供了用于洗涤和脱水纸浆的设备以及用于控制该设备的系统。 该装置包括一对安装在大桶中的可旋转的压榨辊并且包括其间的压榨压区，用于将纸浆输送到压榨压区的入口，其中一个压榨辊相对于另一个可移动，并且其中 纸浆由可变操作参数的数量决定。 该系统包括用于利用压辊之间的距离作为可变操作参数的装置，用于设置用于特定控制参数的期望值，用于测量特定控制参数，以及用于在操作期间将至少两个可变操作参数调整为 将特定控制参数的期望值和测量值之间的差保持在预定差以下。
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公开(公告)号：US20150292639A1
公开(公告)日：2015-10-15
申请号：US14428042
申请日：2013-10-01
申请人： ANDRITZ INC.
发明人： Todd Grace
CPC分类号： B01D36/001 , B01D33/0009 , B01D33/06 , B01D33/09 , B01D33/48 , B01D33/74 , D21C9/06 , F16K24/04
摘要： A rotary drum for thickening pulp from a slurry, the drum including drainage channels delivering filtrate from a pulp mat on an outer surface of the rotary drum to at least one filtrate chamber at an end of the rotary drum, a flat face valve and plenum chamber assembly in the filtrate chamber. The flat face valve juxtaposed against drainage outlets of the drainage channels, wherein the flat face valve does not block the drainage outlets during a majority of the rotation of the rotary drum. At least one opening on the flat face valve extending through the front surface and aligned with the drainage outlets to provide a fluid passage through the flat face valve and to a plenum chamber behind the flat face valve such that air in the filtrate is collected in the upper portion of the plenum chamber and removed from the rotary drum.
摘要翻译： 一种用于从浆料中增稠纸浆的旋转鼓，所述滚筒包括排出通道，其将滤液从所述旋转鼓的外表面上的纸浆垫输送到所述旋转鼓的端部处的至少一个滤液室，平面阀和增压室 装在滤液室中。 平面阀与排水通道的排水口并置，其中平面阀在旋转滚筒的大部分旋转期间不阻塞排出口。 平面阀上的至少一个开口延伸穿过前表面并与排水口对准，以提供通过平面阀的流体通道和平面阀后面的增压室，使得滤液中的空气被收集在 增压室的上部并从旋转鼓中取出。
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7.发明授权Apparatus for washing and dewatering pulp, a system for controlling such an apparatus, and a method for processing pulp in such an apparatus 有权纸浆清洗和脱水设备，用于控制这种设备的系统以及在这种设备中处理纸浆的方法公开(公告)号：US08808499B2
公开(公告)日：2014-08-19
申请号：US12747648
申请日：2008-12-11
摘要： Methods for processing pulp in an apparatus for washing and dewatering pulp and a system for controlling this apparatus are provided. The apparatus includes a pair of rotatable press rolls installed in vats and including a press nip therebetween, an inlet for feeding the pulp to the press nip, with one of the press rolls being movable in relation to the other and in which the processing of the pulp is determined by the number of variable operating parameters. The method includes utilizing the distance between the press rolls as a variable operating parameter, setting a desired value for a specific control parameter, measuring the specific control parameter, and adjusting at least two of the variable operating parameters during operation to maintain the difference between the desired value and the measured value of the specific control parameter below a predetermined difference. Systems for controlling this apparatus are also disclosed.
摘要翻译： 提供了一种用于在用于洗涤和脱水纸浆的设备中处理纸浆的方法和用于控制该设备的系统。 该装置包括一对安装在大桶中的可旋转的压榨辊并且包括其间的压榨压区，用于将纸浆输送到压榨压区的入口，其中一个压榨辊相对于另一个可移动，并且其中 纸浆由可变操作参数的数量决定。 该方法包括利用压辊之间的距离作为可变操作参数，为特定控制参数设置期望值，测量特定控制参数，以及在操作期间调整至少两个可变操作参数以维持 期望值和特定控制参数的测量值低于预定差值。 还公开了用于控制该装置的系统。
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公开(公告)号：US20110042026A1
公开(公告)日：2011-02-24
申请号：US12988311
申请日：2009-04-21
摘要： A device is provided for distribution of 2-13% cellulose pulp to a movable processing surface in a pulp processing device to form a pulp web thereon. An inlet box has an inlet and an outlet defined therein. A rotatable distribution means is arranged for distributing pulp along an entire length of the outlet. The distribution means is placed so that a first distance (a1) between the distribution means and a first outlet wall is greater than a second distance (a2) between the distribution means and a movable processing surface.
摘要翻译： 提供了一种用于将纸浆处理装置中的2-13％纤维素纸浆分配到可移动处理表面以在其上形成纸浆网的装置。 入口箱具有限定在其中的入口和出口。 布置可旋转分配装置以沿着出口的整个长度分配纸浆。 放置分配装置使得分配装置和第一出口壁之间的第一距离（a1）大于分配装置和可移动处理表面之间的第二距离（a2）。
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公开(公告)号：US20110017646A1
公开(公告)日：2011-01-27
申请号：US12747683
申请日：2008-12-11
申请人： Johan Bylander , Fredrik Pontén , Jörgen Lundberg
发明人： Johan Bylander , Fredrik Pontén , Jörgen Lundberg
IPC分类号： D21C9/18 , B01D33/06 , B01D35/157 , D21C9/06
摘要： Apparatus for washing and dewatering pump comprising a pair of rotatable press rolls with permeable outer surfaces, a casing comprising a vat in which the rolls are installed, and a feed for feeding the pulp to the gap formed between the vat and the press roll is disclosed. The vat includes a first side vat segment partially enclosing the first press roll and a second side vat segment partially enclosing the second press roll and casing members for each of the vat segments, the first casing member being pivotable about an axis of rotation and between closed and open positions, pulp distribution devices for distributing pulp onto the press rolls, at least one of the pulp distribution devices being mounted on the casing member whereby it is moved away from the press roll together with the casing member when it is opened.
摘要翻译： 公开了一种用于洗涤和脱水泵的设备，其包括一对具有可渗透外表面的可旋转的压榨辊，包括一个包括其中安装有辊的槽的壳体和用于将纸浆输送到形成于槽和压榨辊之间的间隙的进料 。 所述槽包括部分地包围所述第一压榨辊的第一侧槽段和部分地包围所述第二压榨辊的第二侧槽段和用于每个所述槽段的壳体构件，所述第一壳体构件围绕旋转轴线可旋转并且在闭合 和开放位置，用于将纸浆分配到压榨辊上的纸浆分配装置，至少一个纸浆分配装置安装在壳体部件上，从而当纸张分配装置打开时与壳体部件一起移动。
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公开(公告)号：US20100155007A1
公开(公告)日：2010-06-24
申请号：US12600926
申请日：2008-05-21
申请人： Rickard Andersson
发明人： Rickard Andersson
IPC分类号： D21F1/78
摘要： Apparatus for washing and dewatering cellulose pulp is disclosed comprising: a rotatable press roll having a perforated outer surface for dewatering the pulp; a stationary guide surface arranged at a distance from the perforated outer surface so as to enclose the press roll in the circumferential direction, such that a substantially closed vat is defined between stationary guide surface and the press roll; a pulp passage, being provided between the perforated outer surface and its stationary guide surface, such that during operation, pulp is transported in the direction of rotation and, at the end of the pulp passage, is pressed in a pinch between the press roll and a second press roll. A radial distance between the stationary guide surface and the associated press roll is generally increasing towards the pinch, such that the vat diverges, towards the pinch.
摘要翻译： 公开了一种用于洗涤和脱水纤维素纸浆的设备，包括：可旋转的压榨辊，其具有用于使纸浆脱水的穿孔外表面; 固定引导表面，其布置在与穿孔的外表面一定距离处，以便沿周向包围压辊，使得在固定引导表面和压榨辊之间限定基本上封闭的槽; 一个纸浆通道，设置在穿孔的外表面和其固定的引导表面之间，使得在操作期间，纸浆沿着旋转方向被输送，并且在纸浆通道的端部被挤压在压辊和 第二次压辊。 固定引导表面和相关联的压榨辊之间的径向距离通常朝向夹紧方向增加，使得槽朝向夹点发散。
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