Screw extruder with improved dispersive mixing elements
    1.
    发明授权
    Screw extruder with improved dispersive mixing elements 有权
    螺杆挤出机具有改进的分散混合元件

    公开(公告)号:US6136246A

    公开(公告)日:2000-10-24

    申请号:US241822

    申请日:1999-02-01

    摘要: A screw extruder (10) having a barrel (18) which has a bore (26) defining an inner surface (44) and one or more extruder screws (28), positioned within the bore (26). The extruder screw or screws (28) include a central shaft (34) and one or more screw flights (30). The extruder screw or screws (28) farther including one or more dispersive mixing elements (204), (234), (308), (406), (508), (558), which interact with the inner surface of the barrel (44) to form one or more progressively narrowing passages (46) through which material is forced into multiple regions of high elongational and shear stress (480, (120), (214), (310), (410), (510), (564).A second preferred embodiment is a screw extruder (10) having a barrel (18) having a bore (26) defining an inner surface (44) and one or more extruder screws (600), (701), positioned within the bore (26). The extruder screw or screws (600), (701) include a central shaft (602), (706) and a number of dispersive mixing elements (604), (608), (714), which are configured and positioned to form a number of progressively narrowing passages (606), (716) through which material is forced into multiple regions of high elongational and shear stress (608), (718).

    摘要翻译: 一种具有筒体(18)的螺杆挤出机(10),其具有限定内表面(44)的孔(26)和位于所述孔(26)内的一个或多个挤出机螺杆。 挤压机螺杆或螺钉(28)包括中心轴(34)和一个或多个螺旋螺纹(30)。 挤出机螺杆或螺钉(28)进一步包括一个或多个分散混合元件(204),(234),(308),(406),(508),(558),其与筒的内表面 形成一个或多个逐渐变窄的通道(46),材料通过该通道被迫进入高伸长和剪切应力的多个区域(480,(120),(214),(310),(410),(510), 第二优选实施例是具有筒(18)的螺杆挤出机(10),其具有限定内表面(44)的孔(26)和位于内部表面(44))内的一个或多个挤出机螺杆(600),(701) 挤出机螺杆(600),(701)包括中心轴(602),(706)和多个分散混合元件(604),(608),(714),其中 构造并定位成形成多个逐渐变窄的通道(606),(716),材料通过该通道被迫进入高伸长和剪切应力的多个区域(608),(718)。

    METHOD OF COOLING MATERIAL USING AN EXTRUDER SCREW CONFIGURED FOR IMPROVED HEAT TRANSFER
    2.
    发明申请
    METHOD OF COOLING MATERIAL USING AN EXTRUDER SCREW CONFIGURED FOR IMPROVED HEAT TRANSFER 审中-公开
    使用配置为改进热交换器的挤出螺杆冷却材料的方法

    公开(公告)号:US20080315455A1

    公开(公告)日:2008-12-25

    申请号:US12177940

    申请日:2008-07-23

    IPC分类号: B01F15/06 B29C47/38

    摘要: A method of cooling material in a screw extruder having a barrel including providing at least one extruder screw having a central shaft. The at least one extruder screw includes at least one screw flight including at least one interruption in the screw flight to form at least one discontinuity by which a portion of the screw flight is circumferentially displaced from the remainder of the screw flight. Material is turned from near the central shaft outwards toward the inner surface of the screw extruder barrel through the at least one discontinuity.

    摘要翻译: 一种在具有桶的螺杆挤出机中冷却材料的方法,包括提供至少一个具有中心轴的挤出机螺杆。 至少一个挤出机螺杆包括至少一个螺旋飞行,其包括在螺旋飞行中的至少一个中断,以形成至少一个不连续部分,螺旋飞行的一部分与螺旋飞行的其余部分沿圆周方向偏移。 材料通过至少一个不连续部分从中心轴的附近向外转向螺杆挤出机筒的内表面。

    Intermeshing element mixer
    3.
    发明授权
    Intermeshing element mixer 失效
    啮合元件搅拌机

    公开(公告)号:US06709147B1

    公开(公告)日:2004-03-23

    申请号:US10310492

    申请日:2002-12-05

    IPC分类号: B29B742

    摘要: A mixing section (10,50,60) for mixing material in an extruder (8) having a barrel (32), The mixing section (10,50,60) includes a screw (14) having a central shaft (16), and a floating annular sleeve (12) located between the screw (14) and the barrel (32), and surrounding a portion of the screw (14). The sleeve (12) has mixing elements (28) protruding radially inward toward the screw (14). A portion of the central shaft (16) has mixing elements (18) protruding radially outward toward the sleeve (12). The mixing elements (18) on the screw (14) and the sleeve (12) create multiple regions of reorientation (2) in the material to be mixed which produce improved dispersive mixing.

    摘要翻译: 一种用于在具有筒体(32)的挤出机(8)中混合材料的混合部分(10,50,60)。混合部分(10,50,60)包括具有中心轴(16)的螺杆(14) 以及位于所述螺钉(14)和所述筒体(32)之间并围绕所述螺钉(14)的一部分的浮动环形套管(12)。 套筒(12)具有朝向螺钉(14)径向向内突出的混合元件(28)。 中心轴(16)的一部分具有朝向套筒(12)径向向外突出的混合元件(18)。 螺杆(14)和套管(12)上的混合元件(18)在待混合的材料中产生重新取向(2)的多个区域,从而产生改进的分散混合。

    Screw extruder with improved dispersive mixing
    4.
    发明授权
    Screw extruder with improved dispersive mixing 失效
    螺杆挤出机具有改进的分散混合

    公开(公告)号:US5932159A

    公开(公告)日:1999-08-03

    申请号:US966272

    申请日:1997-11-07

    摘要: A screw extruder (10), including a barrel (18) having a bore (26) which defines an inner surface (24). At least one extruder screw (28) is positioned within the bore (26), each screw (28) further including a central shaft (34) and at least one screw flight (30). Each screw flight (30) further includes a front pushing face (36) and a rear face (38). The profile (40) of each front pushing face (36) acts with the inner surface (24) of the barrel (18) to form a progressively narrowing passage (46) through which material is forced into multiple regions of high elongational and shear stress (48) which act to break down agglomerates of material and thus dispersively mix the material.Also presented is a screw extruder (100) having a single screw (28) which includes dispersion disks (102) which are rotationally offset from one another and whose design is not constrained by interaction with a second disk, which provides improved distributive and dispersive mixing.Also presented is a method of extruding material using a screw extruder (10) having pushing face (36) profiles (40) which form progressively narrowing passages (46) in conjunction with the barrel (18) inner surfaces (24) to provide improved dispersive mixing.

    摘要翻译: 一种螺杆挤出机(10),包括具有限定内表面(24)的孔(26)的筒体(18)。 至少一个挤出机螺杆(28)定位在孔(26)内,每个螺钉(28)还包括中心轴(34)和至少一个螺旋飞行(30)。 每个螺旋螺纹(30)还包括前推动面(36)和后表面(38)。 每个前推面(36)的轮廓(40)与筒体(18)的内表面(24)作用,以形成逐渐变窄的通道(46),材料通过该通道被迫进入高伸长和剪切应力的多个区域 (48),其用于分解材料的附聚物,从而分散地混合材料。 还提出了具有单个螺杆(28)的螺杆挤出机(100),其包括彼此旋转偏移的分散盘(102),并且其设计不受与第二盘的相互作用的约束,其提供改进的分配和分散混合 。 还提出了一种使用具有推挤面(36)型材(40)的螺杆挤出机(10)挤压材料的方法,该型材(40)与筒体(18)内表面(24)结合形成逐渐变窄的通道(46),以提供改进的分散性 混合。

    Screw extruder with independently adjustable groove depth
    5.
    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。