Preheating screw
    1.
    发明授权
    Preheating screw 失效
    预热螺丝

    公开(公告)号:US5547277A

    公开(公告)日:1996-08-20

    申请号:US422494

    申请日:1995-04-12

    IPC分类号: B01F7/00 B01F15/06 B29C47/84

    摘要: A preheating screw for the simultaneous mixing and heating of fine-grained or paste-like substances, in which intensive heat transfer takes place during transport of the substance by use of a rotating hollow screw that is filled with a heat-transfer medium, preferably a fluid, heat being transfered from the heat-transfer medium to the product by way of the heated hollow screw. An electrical heating device is installed in a hollow screw shaft, and is supplied with electrical energy via sliding contacts positioned on the outside of the screw shaft.

    摘要翻译: 一种用于同时混合和加热细粒或糊状物质的预热螺杆,其中通过使用填充有传热介质的旋转中空螺杆运送物质期间发生强烈的热传递,优选地 流体,热量通过加热的中空螺杆从传热介质转移到产品。 电加热装置安装在中空螺杆轴中,并通过位于螺杆轴外侧的滑动触点供给电能。

    Rotor zone cooling method and apparatus for rotors in continuous mixers
of plastic materials
    2.
    发明授权
    Rotor zone cooling method and apparatus for rotors in continuous mixers of plastic materials 失效
    用于塑料材料的连续混合器中的转子转子冷却方法和转子装置

    公开(公告)号:US5273356A

    公开(公告)日:1993-12-28

    申请号:US995979

    申请日:1992-12-23

    摘要: Rotor zone cooling method for channeling liquid coolant flow in rotors in continuous mixers provides for predetermined zones along the lengths of the rotors to be cooled as may be desired and provides for other predetermined zones to remain neutral. A sequence of alternating cooling/neutral/cooling/neutral/cooling/neutral zones can be provided, including zones of various possible lengths, locations and numbers of such zones for tailoring or customizing these zones to optimize temperature conditions along a rotor depending upon mixing requirements and characteristics of plastic materials being mixed. A central coolant feed tube conveys coolant from an entrance into the bore to a discharge end of the feed tube positioned near the bore terminus in a first cooling zone. Coolant flow is diverted into isolation channels within isolation tubing sections spaced inwardly from the rotor bore wall for creating a neutral zone. Coolant flow is diverted outwardly from an isolation channel through ports into a cooling augmentation channel located closely adjacent to the rotor bore wall being confined outside of a cooling booster tubing sections. Coolant is diverted to flow outwardly from an isolation channel into an augmentation channel and thereafter coolant flow is diverted inwardly from the augmentation channel.

    摘要翻译: 用于在连续混合器中的转子中引导液体冷却剂流的转子区域冷却方法沿着要被冷却的转子的长度提供预定区域,并且提供其它预定区域保持中立。 可以提供一系列交替的冷却/中性/冷却/中性/冷却/中性区域,包括各种可能长度的区域,这些区域的位置和数量,用于定制或定制这些区域,以根据混合要求优化沿着转子的温度条件 和塑料材料的特性混合。 中央冷却剂供给管将冷却剂从入口输送到孔中,以进入位于第一冷却区中的孔终端附近的进料管的排出端。 冷却剂流被转移到与转子孔壁向内间隔开的隔离管段内的隔离通道中,用于产生中性区。 冷却剂流从隔离通道通过端口向外转向冷却增压通道,该冷却增压通道位于紧邻转子孔壁的位置,被限制在冷却增压管段外部。 冷却剂被转向从隔离通道向外流入增压通道,此后冷却剂流从增加通道向内转向。

    Rotary joint
    4.
    发明授权
    Rotary joint 失效
    旋转接头

    公开(公告)号:US3805888A

    公开(公告)日:1974-04-23

    申请号:US22719772

    申请日:1972-02-17

    申请人: DOW CHEMICAL CO

    发明人: DETTMER E

    IPC分类号: B29C47/84 F28F5/00 F28D11/00

    摘要: An improved rotary joint comprises an assembly wherein all of the fluid-passing and heat-exchange communicating tubes, which are concentrically assembled and circumferentially rotatable as a unit, rotate as a single unit in and with the roll or screw being heated and/or cooled and the tubes terminate at their feed inlet and vent exhaust ends within a fixed housing. Reduced wear is noted for this variety of joint which is advantageously employed for the feeding of various heat-exchange liquids or other fluids to milti-zone extruder screws or the like, and for analogous applications.

    摘要翻译: 一种改进的旋转接头包括一个组件,其中以一个单元同心组装和周向旋转的所有流体通过和热交换连通管作为单个单元在辊或螺杆中被加热和/或冷却 并且管终止于其进料入口并且排气口在固定壳体内终止。 注意到这种各种接头的减少的磨损,其有利地用于将各种热交换液体或其它流体进料到多孔挤出机螺杆等,并且用于类似的应用。

    Method of extruding a mixture
    9.
    发明授权
    Method of extruding a mixture 失效
    挤出混合物的方法

    公开(公告)号:US07150842B2

    公开(公告)日:2006-12-19

    申请号:US10671768

    申请日:2003-09-29

    IPC分类号: B29C47/84

    摘要: A method of extruding a mixture made of a granulate, chips, or powder, etc. of a first thermoplastic and a second thermoplastic is described, the melting range of the first thermoplastic differing from the melting range of the second thermoplastic, using an extruder which has a heatable housing and a screw, which has an intake zone, a melting zone, a delivery zone, and a hole, extending from the intake zone up to the delivery zone, into which a temperature control media may be introduced, in which the temperature control medium causes heating of the screw in the intake zone to a temperature below the melting range of the thermoplastic having the lower melting range and temperature control of the screw in the delivery zone to a temperature which lies between the melting range of the first thermoplastic and the second thermoplastic.

    摘要翻译: 描述了挤出由第一热塑性塑料和第二热塑性塑料制成的颗粒,碎片或粉末等的混合物的方法,第一热塑性塑料的熔化范围与第二热塑性塑料的熔化范围不同,使用挤出机 具有可加热壳体和螺杆,其具有从进气区延伸到输送区域的入口区域,熔化区域,输送区域和孔,可以引入温度控制介质,其中 温度控制介质使得进气区中的螺杆的加热温度低于在输送区中螺杆的较低熔融范围和温度控制的热塑性塑料的熔化范围的温度,其温度处于第一热塑性塑料 和第二热塑性塑料。

    Screw extruder with independently adjustable groove depth
    10.
    发明授权
    Screw extruder with independently adjustable groove depth 失效
    螺杆挤出机,可独立调节槽深

    公开(公告)号:US5909958A

    公开(公告)日:1999-06-08

    申请号:US846129

    申请日:1997-04-25

    摘要: A screw extruder (10), including a barrel assembly (12) having a central bore (36) which defines an inner surface (37). An extruder screw (38) is positioned within the barrel assembly's (12) central bore (36). The barrel assembly (12) has an input end (20) which includes a feed housing portion (25), the feed housing portion (25) having an opening for introduction of material into the central bore (36). There is a shaping die (18) situated at the output end (16) of the barrel assembly (12) to shape the extruded material. The feed housing portion (25) also has one or more groove channels (44) opening into the inner surface (37) of the feed housing portion (25) with a key (48) disposed in each of these groove channels (44). Contacting each key (48) are one or more independently activated actuators (28) which can be used to adjust the radial depths of the keys (48) in the groove channels (44) thus controlling the depth of grooves (46) formed between the keys (48) and the central bore (36) of the barrel (12). A control loop may be established by monitoring a process parameter such as barrel assembly pressure by a sensor (32). This data is fed to a process controller (34), which then adjusts the actuators (28) independently to control the groove (46) depths and thus control the process parameter. Also disclosed is a method for controlling extrusion from a screw extruder (10).

    摘要翻译: 一种螺杆挤出机(10),包括具有限定内表面(37)的中心孔(36)的筒组件(12)。 挤出机螺杆(38)定位在筒组件(12)中心孔(36)内。 枪管组件(12)具有包括进给壳体部分(25)的输入端(20),所述进给容纳部分(25)具有用于将材料引入中心孔(36)的开口。 存在位于筒组件(12)的输出端(16)处的成形模具(18),以使挤压材料成形。 进料容纳部分(25)还具有一个或多个凹槽通道(44),其通过设置在每个凹槽通道(44)中的键(48)而进入到进料容纳部分(25)的内表面(37)中。 接合每个键(48)是一个或多个独立激活的致动器(28),其可以用于调节凹槽通道(44)中的键(48)的径向深度,从而控制形成在凹槽(46)之间的凹槽(46)的深度 键(48)和筒体(12)的中心孔(36)。 可以通过由传感器(32)监测诸如筒组件压力的过程参数来建立控制回路。 该数据被馈送到过程控制器(34),然后该过程控制器(34)独立地调节致动器(28)以控制凹槽(46)深度,从而控制过程参数。 还公开了一种用于控制从螺杆挤出机(10)挤出的方法。