Methods for beating pulp, methods for treating process waters, and methods for producing pulp and paper

    公开(公告)号:US20110226428A1

    公开(公告)日:2011-09-22

    申请号:US13067296

    申请日:2011-05-23

    IPC分类号: D21F1/66

    摘要: The first invention aims to provide a method for preparing stiffer bulky pulp at a freeness level comparable to that obtained by mechanical treatments to improve the bulkiness of product paper by searching for a method capable of adjusting freeness while suppressing damage to pulp fibers and internal fibrillation in a process for producing pulp. The second invention aims to strip contaminants deposited on pulp fibers and/or inorganic particles to reduce adhesion of the contaminants and decrease microorganisms in a treatment of process water containing long pulp fiber fractions used in a process for producing pulp and paper, thereby clarifying process water and thus preparing high-quality pulp and paper.According to the first invention, cavitation is generated in a pulp suspension preferably by a liquid jet and the resulting fine bubbles are introduced into the pulp suspension to adjust the pulp suspension to a desired freeness by means of the impact force induced by collapse of the fine bubbles in a process for producing pulp. According to the second invention, process water containing 50% by weight or less, based on total solids, of long pulp fiber fractions used in a process for producing pulp and/or paper is treated by cavitation generated by a liquid jet and then returned to the process for producing pulp and/or paper and reused.

    Methods for producing recycled pulp, methods for modifying pulp fiber surfaces and dirts, as well as pulp processing equipments
    2.
    发明申请
    Methods for producing recycled pulp, methods for modifying pulp fiber surfaces and dirts, as well as pulp processing equipments 有权
    生产再生纸浆的方法,改性纸浆纤维表面和污渍的方法,以及纸浆加工设备

    公开(公告)号:US20100147479A1

    公开(公告)日:2010-06-17

    申请号:US12708585

    申请日:2010-02-19

    IPC分类号: D21F1/00

    摘要: Pulp processing equipment used to produce high-quality recycled pulp with little damage to fibers, high brightness and low residual ink by means of a force selectively acting on fiber surfaces during the process of recycling waste paper is disclosed. Moreover, fiber surfaces are modified by means of a force acting on only the fiber surfaces to obtain high-quality pulp and to render harmless dirts deteriorating pulp quality. A jet system is provided having one or more nozzles for jetting an aqueous slurry containing a material comprising cellulose into a vessel.

    摘要翻译: 公开了用于生产高品质再生纸浆的纸浆加工设备,其在回收废纸的过程中通过在纤维表面上选择性地作用的力,对纤维,高亮度和低残留油墨几乎没有损害。 此外,纤维表面通过仅作用在纤维表面上的力进行改性以获得高质量的纸浆并且使无害的污渍劣化纸浆质量。 提供一种喷射系统,其具有一个或多个喷嘴,用于将含有纤维素的材料的含水浆料喷射到容器中。

    Methods for producing recycled pulp and methods for modifying pulp fiber surfaces using liquid jet cavitation
    3.
    发明授权
    Methods for producing recycled pulp and methods for modifying pulp fiber surfaces using liquid jet cavitation 有权
    用于生产再生纸浆的方法和使用液体喷射空化来改变纸浆纤维表面的方法

    公开(公告)号:US07727355B2

    公开(公告)日:2010-06-01

    申请号:US10566262

    申请日:2004-08-02

    IPC分类号: D21B1/08 D21B1/36

    摘要: The present invention aims to produce high-quality recycled pulp with little damage to fibers, high brightness and low residual ink by means of a force selectively acting on fiber surfaces during the process of recycling waste paper. Moreover, fiber surfaces are modified by means of a force acting on only the fiber surfaces to obtain high-quality pulp and to render harmless dirts deteriorating pulp quality.A method for producing recycled pulp characterized in that cavitation is generated and used to strip contaminants deposited on fibers and ash during the process of recycling waste paper. Contaminants such as ink deposited on fibers and ash are stripped/fragmented by means of the impact force induced by collapse of fine bubbles by actively introducing bubbles generated by cavitation into a pulp suspension. A jet system having one or more nozzles for jetting an aqueous slurry containing a material comprising cellulose into a vessel.

    摘要翻译: 本发明旨在通过在回收废纸的过程中选择性地作用在纤维表面上的力,生产高质量的再生纸浆,对纤维,高亮度和低残留油墨几乎没有损害。 此外,纤维表面通过仅作用在纤维表面上的力进行改性以获得高质量的纸浆并且使无害的污渍劣化纸浆质量。 一种生产再生纸浆的方法,其特征在于产生空化并用于在废纸回收过程中剥离沉积在纤维和灰分上的污染物。 污染物如沉积在纤维和灰分上的污染物通过由气泡产生的气泡主动地引入纸浆悬浮液中,通过由细小气泡的塌陷引起的冲击力被剥离/碎裂。 一种具有一个或多个喷嘴的喷射系统,用于将含有纤维素的材料的含水浆料喷射到容器中。

    Coating apparatus
    4.
    发明授权
    Coating apparatus 失效
    涂装设备

    公开(公告)号:US5145528A

    公开(公告)日:1992-09-08

    申请号:US665225

    申请日:1991-03-06

    IPC分类号: B05C5/02 G03C1/74 G11B5/848

    摘要: An apparatus for applying coating material in the form of stripes onto a film traveling in a predetermined direction is provided with a coating material nozzle which effuses coating material while supporting the film. The contact support surface of the nozzle in contact with the film is a flat surface, along which the film travels. The coating material nozzle has thereon applicator grooves for uniformly forming the cross-sectional shape of coating material applied in the form of stripes onto the film. Effusion ports or discharge ports for coating material are provided in the bottom surface of the applicator grooves. Coating material is fed to the coating material nozzle through a gear pump, which is adapted to control the coating material supply so that the coating material within the applicator grooves has a pressure lower than atmospheric pressure. In addition, there may be provided a plate member for blowing air uniformly and opposed to the contact support surface of the coating material nozzle contacted by the film. The air from this plate is blown against the traveling film on its rear side.

    摘要翻译: 将以条状涂布材料涂布在沿预定方向行进的膜上的装置设置有涂覆材料喷嘴,其在支撑膜的同时喷射涂料。 与薄膜接触的喷嘴的接触支撑表面是薄膜行进的平坦表面。 涂料喷嘴具有用于均匀地形成以条状形式施加到膜上的涂层材料的横截面形状的施加器槽。 用于涂料的出水口或排出口设置在敷料槽的底面。 涂料通过齿轮泵送入涂料喷嘴,该齿轮泵适于控制涂料供应,使得施涂槽内的涂料具有低于大气压的压力。 此外,可以设置用于均匀吹送空气的板构件,与与膜接触的涂料喷嘴的接触支撑表面相对。 来自该板的空气在其后侧被吹向行进薄膜。

    Coating apparatus
    5.
    发明授权
    Coating apparatus 失效
    涂装设备

    公开(公告)号:US5136972A

    公开(公告)日:1992-08-11

    申请号:US618506

    申请日:1990-11-28

    摘要: A coating apparatus includes: a block-shaped die main body; upper and lower nozzle parts projecting from the die main body to form a nozzle, forward end portions of the upper and lower nozzle parts being substantially cylindrical and each of the portions having a constant curvature, the forward end portion of the upper nozzle part serving as a guide, a discharge opening having a slit-shaped sectional configuration being provided in the guide, a bottom surface of which is lower than a surface of the guide; a coating material reservoir, provided in the die main body, communicating with the discharge opening; a groove formed between the upper and lower nozzle parts, through which the discharge opening communicates with the reservoir; a partitioning plate mounted widthwise substantially entirely on one of the forward end portions of the upper and lower nozzle parts so that the partitioning plate is movable through the nozzle to open the groove; a rotary block pivotably supporting the die main body for rotation through a specified angle; and a solvent reservoir, provided below the lower nozzle, for receiving the forward end portions of the nozzle which has moved downward by pivotal motion of the die main body with the rotary block.

    摘要翻译: 涂覆装置包括:块状模具主体; 上下喷嘴部分从模具主体突出以形成喷嘴,上喷嘴部分和下喷嘴部分的前端部分基本上是圆柱形的,并且每个部分具有恒定的曲率,上喷嘴部分的前端部分用作 引导件,具有狭缝形截面形状的排出口,其设置在所述引导件中,底部表面低于所述引导件的表面; 设置在模具主体中的与排出口连通的涂料容器; 形成在上部喷嘴部分和下部喷嘴部分之间的凹槽,排出口通过该凹槽与储存器连通; 分隔板,其宽度方向安装在上下喷嘴部分的前端部之一上,使得分隔板能够通过喷嘴移动以打开凹槽; 旋转块,其以可旋转的方式支撑所述模具主体以旋转指定的角度; 以及设置在下部喷嘴下方的溶剂容器,用于接收通过模具本体与旋转块的枢转运动向下移动的喷嘴的前端部分。

    Apparatus for treating papermaking feedstock
    6.
    发明授权
    Apparatus for treating papermaking feedstock 有权
    用于处理造纸原料的设备

    公开(公告)号:US08123909B2

    公开(公告)日:2012-02-28

    申请号:US12091853

    申请日:2006-11-02

    IPC分类号: D21F1/06

    摘要: A papermaking raw material processor capable of reforming pulp in papermaking a process using cavitation includes a first pump 5 jets jet liquid and second pump 6 jets suspension containing; e.g., pulp fibers into a processing unit inside which cavitation is generated by generation of a jet stream. Inside processing unit 2, a jet stream generates cavitation to carry out a reforming processing in which ink, or the like, is removed from the fibers by a blast resulting from collapse of cavitation bubbles generated there. The liquid after reforming processing is returned to second tank 4, except for a part of it fed to downstream steps, while the suspension is processed, as circulated between processing unit 2 and second tank 6.

    摘要翻译: 一种造纸原料处理机能够在造纸中使用空化进行造纸过程中的纸浆重整,包括第一泵5喷射喷射液体和第二泵6喷射悬浮液, 例如,纸浆纤维进入其中通过产生喷射流而产生空化的处理单元。 在内部处理单元2中,喷射流产生空化以进行重整处理,其中通过由其产生的空化气泡的塌陷引起的喷射从纤维中除去油墨等。 在处理单元2和第二箱6之间循环的同时处理悬浮​​液时,重整处理后的液体返回到第二罐4,除了供给到下游台阶的一部分。

    Method for recovering performance of electrolyzer for use in production of polysulfide and method for stopping holding electrolyzer
    7.
    发明申请
    Method for recovering performance of electrolyzer for use in production of polysulfide and method for stopping holding electrolyzer 审中-公开
    回收多硫化物生产中使用的电解槽性能的方法及停止电解槽的方法

    公开(公告)号:US20090242422A1

    公开(公告)日:2009-10-01

    申请号:US12384063

    申请日:2009-03-31

    IPC分类号: C25B1/22 C25B15/00

    CPC分类号: C25B15/00 C25B1/14

    摘要: In an electrolyzer comprising an anode compartment provided with porous anodes, a cathode compartment, and a membrane providing a partition between the anode compartment and the cathode compartment, wherein a solution containing sulfide ions is introduced into the anode compartment, and an aqueous solution containing caustic soda is introduced into the cathode compartment, thereby producing a polysulfide containing polysulfide sulfur through electrolytic oxidation, wherein the anode compartment of the electrolyzer is cleaned with the use, of an aqueous solution containing at least either one of an inorganic acid, a chelating agent, and a scale-cleaning agent, thereby recovering performance of the electrolyzer. Further, when the contents of the anode compartment are replaced with an alkaline aqueous solution containing not more than 0.1 mass % of sulfide ions and not more than 0.1 mass % of carbonate ions upon stopping the electrolytic oxidation, thereby maintaining the performance of the electrolyzer.

    摘要翻译: 在包括设置有多孔阳极的阳极室,阴极室和在阳极室和阴极室之间提供隔板的膜的电解槽中,其中将包含硫化物离子的溶液引入阳极室中,并将含有苛性碱的水溶液 将苏打引入阴极室,由此通过电解氧化生成含有多硫化硫的硫化物,其中使用含有无机酸,螯合剂,螯合剂等中的至少一种的水溶液清洗电解槽的阳极室, 和垢垢清洗剂,从而回收电解槽的性能。 此外,当停止电解氧化时,当含有不超过0.1质量%的硫化物离子和不超过0.1质量%的碳酸根离子的碱性水溶液代替阳极室的内容物,从而保持电解器的性能。

    Methods for Beating Pulp, Methods for Treating Process Waters, and Methods for Producing Pulp and Paper
    8.
    发明申请
    Methods for Beating Pulp, Methods for Treating Process Waters, and Methods for Producing Pulp and Paper 有权
    打浆纸浆的方法,处理过程水的方法和生产纸浆和纸张的方法

    公开(公告)号:US20080078518A1

    公开(公告)日:2008-04-03

    申请号:US11884012

    申请日:2006-02-09

    IPC分类号: D21F1/66 B02C19/06

    摘要: The first invention aims to provide a method for preparing stiffer bulky pulp at a freeness level comparable to that obtained by mechanical treatments to improve the bulkiness of product paper by searching for a method capable of adjusting freeness while suppressing damage to pulp fibers and internal fibrillation in a process for producing pulp. The second invention aims to strip contaminants deposited on pulp fibers and/or inorganic particles to reduce adhesion of the contaminants and decrease microorganisms in a treatment of process water containing long pulp fiber fractions used in a process for producing pulp and paper, thereby clarifying process water and thus preparing high-quality pulp and paper. According to the first invention, cavitation is generated in a pulp suspension preferably by a liquid jet and the resulting fine bubbles are introduced into the pulp suspension to adjust the pulp suspension to a desired freeness by means of the impact force induced by collapse of the fine bubbles in a process for producing pulp. According to the second invention, process water containing 50% by weight or less, based on total solids, of long pulp fiber fractions used in a process for producing pulp and/or paper is treated by cavitation generated by a liquid jet and then returned to the process for producing pulp and/or paper and reused.

    摘要翻译: 第一个发明的目的是提供一种制备比较通过机械处理获得的较硬的大块纸浆的方法,通过寻找能够调节游离度同时抑制纸浆纤维损伤和内部纤维颤动的方法来改善产品纸张的蓬松度 一种生产纸浆的方法。 第二个发明旨在剥离沉积在纸浆纤维和/或无机颗粒上的污染物,以减少在生产纸浆和纸的方法中使用的含有长纸浆纤维级分的工艺水的处理中污染物的粘附并减少微生物,由此澄清工艺用水 从而制备优质纸浆和纸浆。 根据第一发明,优选通过液体射流在纸浆悬浮液中产生空化,并将所得的细小气泡引入纸浆悬浮液中,以通过由细碎的塌陷引起的冲击力将纸浆悬浮液调节至所需的游离度 在生产纸浆的过程中的气泡。 根据第二发明,在制造纸浆和/或纸的方法中使用的含有基于总固体的50重量%以下的长纸浆纤维级分的处理水由液体喷射产生的空化处理,然后返回到 制造纸浆和/或纸张并重复使用的过程。

    Coating head assembly and coating method
    9.
    发明授权
    Coating head assembly and coating method 失效
    涂装头组装及涂装方法

    公开(公告)号:US5045358A

    公开(公告)日:1991-09-03

    申请号:US428515

    申请日:1989-10-30

    IPC分类号: B05C5/02 G03C1/74

    CPC分类号: G03C1/74 B05C5/0254

    摘要: A coating head assembly for applying a coating material to a web, comprises an applicator block; a paint reservoir defined in the applicator block for the storage of the coating material; and a generally elongated nozzle integral with the applicator block and extending in a direction substantially transverse to the direction of transportation of the web. A free edge of the nozzle opposite to the applicator block has a generally curved nozzle face. This nozzle face has a plurality of applicator grooves defined therein in communication with the paint reservoir. During the passage of the web in sliding contact with the nozzle face, the coating material is supplied outwardly from the applicator grooves for the transfer thereof onto the web, resulting in the formation of a striped pattern of the coated layer on the web.

    摘要翻译: 一种用于将涂层材料施加到幅材上的涂覆头组件,包括涂布器块; 涂料容器限定在涂布器块中,用于储存涂料; 以及与施用器块整体并且沿着基本上横向于幅材的传送方向延伸的大致细长的喷嘴。 与喷涂块相对的喷嘴的自由边缘具有大致弯曲的喷嘴面。 该喷嘴面具有与油漆储存器连通的多个施加槽。 在幅材与喷嘴面滑动接触的通道期间,涂布材料从施加器槽向外供应,以将其转印到幅材上,导致在幅材上形成涂层的条纹图案。

    Methods for producing recycled pulp, methods for modifying pulp fiber surfaces and dirts, as well as pulp processing equipments
    10.
    发明授权
    Methods for producing recycled pulp, methods for modifying pulp fiber surfaces and dirts, as well as pulp processing equipments 有权
    生产再生纸浆的方法,改性纸浆纤维表面和污渍的方法,以及纸浆加工设备

    公开(公告)号:US08088254B2

    公开(公告)日:2012-01-03

    申请号:US12708585

    申请日:2010-02-19

    IPC分类号: D21B1/32 D21B1/36

    摘要: Pulp processing equipment used to produce high-quality recycled pulp with little damage to fibers, high brightness and low residual ink by means of a force selectively acting on fiber surfaces during the process of recycling waste paper is disclosed. Moreover, fiber surfaces are modified by means of a force acting on only the fiber surfaces to obtain high-quality pulp and to render harmless dirts deteriorating pulp quality. A jet system is provided having one or more nozzles for jetting an aqueous slurry containing a material comprising cellulose into a vessel.

    摘要翻译: 公开了用于生产高品质再生纸浆的纸浆加工设备,其在回收废纸的过程中通过在纤维表面上选择性地作用的力,对纤维,高亮度和低残留油墨几乎没有损害。 此外,纤维表面通过仅作用在纤维表面上的力进行改性以获得高质量的纸浆并且使无害的污渍劣化纸浆质量。 提供一种喷射系统,其具有一个或多个喷嘴,用于将含有纤维素的材料的含水浆料喷射到容器中。