Papermaking apparatus with variable pulse turbulation blades

    公开(公告)号:US06444094B1

    公开(公告)日:2002-09-03

    申请号:US09917932

    申请日:2001-07-27

    IPC分类号: D21F154

    摘要: Papermaking apparatus is disclosed having variable dewatering devices with moveable elements which engage the conveyor carrying paper stock and are adjustable to vary their operating characteristics. A variable pulse turbulation blade with an adjustable in-going angle is provided with a cam-operated adjustment device that maintains the blade height constant while adjusting the in-going angle to prevent fiber clumps and to provide the paper sheet with a more uniform consistency. The turbulation blade may have a plurality of flats disposed at different angles or multiple radii on its leading portion.

    Ceramic coated abrasion resistant member and process for making
    4.
    发明授权
    Ceramic coated abrasion resistant member and process for making 失效
    陶瓷涂层耐磨构件及其制造工艺

    公开(公告)号:US4554195A

    公开(公告)日:1985-11-19

    申请号:US597498

    申请日:1984-04-06

    IPC分类号: F03B3/12 B32B3/14

    摘要: A ceramic coated abrasion resistant member and method of making are described in which a plurality of thin plates of polycrystalline ceramic material are bonded to a thicker substrate base member with an adhesive bonding material. The bonding material includes a thermosetting organic plastic adhesive and a coupling agent which forms covalent chemical bonds with the ceramic plates, base member and plastic adhesive. An organosilane, such as .gamma.-aminopropyl trimethoxy silane, may be used as the coupling agent. The ceramic material may be selected from the group consisting of aluminum oxide, zirconium oxide, silicon carbide, silicon nitride, and spinel ceramic materials. The substrate member is preferably metal, such as steel and the plastic adhesive may be an epoxy resin. The ceramic coated abrasion resistant member may be an impeller blade such as the blades of a high speed fan for conveying coal dust or other abrasive particulate material through a conduit, or the blades of a pump impeller for pumping abrasive liquid. In the process for making the abrasion resistant member, the substrate base member and the ceramic plates are coated on the surfaces to be bonded with a thin layer of coupling agent of about one molecule thickness before they are bonded together with the thermosetting organic plastic adhesive.

    摘要翻译: 一种陶瓷涂覆的耐磨构件及其制造方法,其中多个多晶陶瓷薄板通过粘合剂粘合到较厚的基底基底上。 接合材料包括热固性有机塑料粘合剂和与陶瓷板,基底构件和塑料粘合剂形成共价化学键的偶联剂。 可以使用有机硅烷,例如γ-氨基丙基三甲氧基硅烷作为偶联剂。 陶瓷材料可以选自氧化铝,氧化锆,碳化硅,氮化硅和尖晶石陶瓷材料。 基板构件优选为金属,例如钢,塑料粘合剂可为环氧树脂。 陶瓷涂覆的耐磨构件可以是诸如高速风扇的叶片的叶轮叶片,用于通过导管或用于泵送研磨液体的泵叶轮的叶片输送煤尘或其它磨料颗粒材料。 在制造耐磨部件的工艺中,将基材基材和陶瓷板在与热固性有机塑料粘合剂粘合在一起之前用约1分子厚度的偶联剂薄层粘合在表面上。

    Papermaking machine with variable dewatering elements including variable pulse turbulation blades adjusted by computer control system in response to sensors of paper sheet characteristics
    5.
    发明授权
    Papermaking machine with variable dewatering elements including variable pulse turbulation blades adjusted by computer control system in response to sensors of paper sheet characteristics 失效
    造纸机具有可变脱水元件,包括由计算机控制系统根据纸张特性的传感器调整的可变脉冲紊流叶片

    公开(公告)号:US06274002B1

    公开(公告)日:2001-08-14

    申请号:US09340551

    申请日:1999-06-28

    IPC分类号: D21F154

    摘要: An automatic control system for a papermaking machine having a plurality of variable dewatering devices with moveable elements which engage the conveyor carrying the paper stock and are adjusted by electrical operating devices, such as servo motors or solenoid valves, to vary their water removal rate in response to control signals produced by a computer controller. A plurality of sensors are spaced along the path of the paper sheet downstream from the variable dewatering devices to sense the paper sheet characteristics including light transparency and mass, and to apply sensor output signals corresponding thereto to the computer controller. The servo motors have their shafts coupled to adjustment devices for cam mechanisms which adjust the moveable elements of the variable dewatering elements. The variable dewatering elements include a variable angle foil, a variable height blade, a variable width slot Uhle box, a variable width pickup device, and a variable pulse turbulation blade, whose moveable elements are adjusted to change their water removal rates. Shaft position encoders on the servo motors or other operating devices produce feedback position signal which are applied to inputs of the computer controller to indicate when the moveable elements reach their desired adjustment positions. A variable pulse turbulation blade with an adjustable in-going angle is provided with a cam-operated adjustment device that maintains the blade height constant while adjusting the in-going angle to prevent fiber clumps and to provide the paper sheet with a more uniform consistency.

    摘要翻译: 一种用于造纸机的自动控制系统,其具有多个具有可移动元件的可变脱水装置,所述可移动元件与携带纸料的输送机接合,并且通过电动操作装置(例如伺服电动机或电磁阀)进行调节,以响应于它们的去水率而改变 以控制由计算机控制器产生的信号。 多个传感器沿着可变脱水装置下游的纸张的路径间隔开,以感测包括光透明度和质量的纸张特性,并将与之对应的传感器输出信号应用于计算机控制器。 伺服电动机的轴连接到用于调节可变脱水元件的可移动元件的凸轮机构的调节装置。 可变脱水元件包括可变角度箔,可变高度叶片,可变宽度槽Uhle盒,可变宽度拾取装置和可变脉冲混合叶片,其可移动元件被调节以改变其去水率。 伺服电动机或其他操作装置上的轴位置编码器产生反馈位置信号,该信号被施加到计算机控制器的输入端以指示何时可移动元件到达其期望的调节位置。 具有可调节角度的可变脉冲颤动叶片设置有凸轮操作的调节装置,其保持叶片高度恒定,同时调节进入角度以防止纤维束并且为纸张提供更均匀的一致性。

    Ceramic coated abrasion resistant member and process for making
    6.
    发明授权
    Ceramic coated abrasion resistant member and process for making 失效
    陶瓷涂层耐磨构件及其制造工艺

    公开(公告)号:US4671740A

    公开(公告)日:1987-06-09

    申请号:US881518

    申请日:1986-06-30

    IPC分类号: F03B3/12 F04D29/02

    摘要: A ceramic coated abrasion resistant member and method of making are described in which a plurality of thin plates of polycrystalline ceramic material of small size, for example, a square plate measuring 1.0 inch by 1.0 inch having a thickness less than 0.200 inch are bonded to a thicker substrate base member with a uniform layer of organic adhesive bonding material. The bonding material includes a thermosetting organic plastic adhesive and a coupling agent which forms covalent chemical bonds with the ceramic plates, base member and plastic adhesive. An organosilane, such as .gamma.-aminopropyl trimethoxy silane, may be used as the coupling agent. The ceramic material may be selected from the group consisting of aluminum oxide, zirconium oxide, silicon carbide, silicon nitride, and spinel ceramic materials. The substrate member is preferably metal, such as steel and the plastic adhesive may be an epoxy resin. The ceramic coated abrasion resistant member may be an impeller blade such as the blades of a high speed fan for conveying coal dust or other abrasive particulate material through a conduit, or the blades of a pump impeller for pumping abrasive liquid. In the process for making the abrasion resistant member, the substrate base member and the ceramic plates are coated on the surfaces to be bonded with a thin layer of coupling agent of about one molecule thickness before they are bonded together with the thermosetting organic plastic adhesive.

    摘要翻译: 描述了一种陶瓷涂覆的耐磨构件和制造方法,其中将多个小尺寸的多晶陶瓷材料薄板,例如厚度小于0.200英寸的1.0英寸×1.0英寸的方形板结合到 较厚的基材基材与均匀的有机粘合剂粘结材料层。 接合材料包括热固性有机塑料粘合剂和与陶瓷板,基底构件和塑料粘合剂形成共价化学键的偶联剂。 可以使用有机硅烷,例如γ-氨基丙基三甲氧基硅烷作为偶联剂。 陶瓷材料可以选自氧化铝,氧化锆,碳化硅,氮化硅和尖晶石陶瓷材料。 基板构件优选为金属,例如钢,塑料粘合剂可为环氧树脂。 陶瓷涂覆的耐磨构件可以是诸如高速风扇的叶片的叶轮叶片,用于通过导管或用于泵送研磨液体的泵叶轮的叶片输送煤尘或其它磨料颗粒材料。 在制造耐磨部件的工艺中,将基材基材和陶瓷板在与热固性有机塑料粘合剂粘合在一起之前用约1分子厚度的偶联剂薄层粘合在表面上。