Degassing of flowable masses in a multiple-screw extruder
    2.
    发明授权
    Degassing of flowable masses in a multiple-screw extruder 有权
    在多螺杆挤出机中脱气可流动的物料

    公开(公告)号:US07654725B2

    公开(公告)日:2010-02-02

    申请号:US10483308

    申请日:2002-06-13

    IPC分类号: B29B7/48

    摘要: The invention relates to a multiple-screw extruder that comprises a first process chamber (1) and a second process chamber (2). In the degassing zones of said extruder, at least the first process chamber is provided with at least one degassing opening. The radius R of the conveyor element in the degassing zones, in at least one conveyor element (7; 9) of at least one screw (5, 7; 5, 9) configured as a passage screw, in a subsection configured as a passage subsection (71a, 71e; 91a, 91e), along the peripheral direction of the at least one conveyor element (7; 9) is by ΔR smaller than the full radius Rv of the conveyor element (6; 8) required for the mutual stripping of adhering product in a closely intermeshing screw operation with die adjacent conveyor elements (6; 8) of adjacent conventional screws (5, 6; 5, 8). The invention also relates to a method for degassing viscous or elasticoviscous flowable masses in such a multi-screw extruder having several process chambers, the respective process chambers communicating by means of a connecting opening.

    摘要翻译: 本发明涉及一种包括第一处理室(1)和第二处理室(2)的多螺杆挤出机。 在所述挤出机的脱气区中,至少第一处理室设有至少一个脱气口。 所述输送元件在脱气区中的至少一个输送元件(7; 9)中的至少一个螺钉(5,7; 5,9)构成为通道螺钉的输送元件的半径R, 沿着所述至少一个输送元件(7; 9)的圆周方向的小段(71a,71e; 91a,91e)的距离小于相互剥离所需的输送机元件(6; 8)的全部半径Rv 在与相邻的常规螺钉(5,6; 5,8)相邻的传送器元件(6; 8)的模具中紧密啮合的螺旋操作中粘附产品。 本发明还涉及一种用于在具有多个处理室的这种多螺杆挤出机中对粘性或弹性可流动物料进行脱气的方法,各个处理室通过连接开口连通。

    Multi-screw extruder
    4.
    发明授权
    Multi-screw extruder 失效
    多螺杆挤出机

    公开(公告)号:US07080935B2

    公开(公告)日:2006-07-25

    申请号:US10489503

    申请日:2002-10-02

    IPC分类号: B29B7/48 B29C47/42

    摘要: The invention relates to a multi-shaft extruder for the continuous treatment and/or processing of bulk material, especially a powdery, granular or flocculent product, comprising a plurality of shafts (3) which are arranged in a crown-like manner in a cavity (1) of an extruder housing (2), said shafts extending parallel to the axial direction (A) of the extruder and forming an inner processing chamber (1a) inside the crown, and an outer processing chamber (1b) outside the crown. Each shaft carries a number of axially successive processing elements (4), at least part of the same being elements (4a; 4c; 4e) having a transporting effect, and with which adjacent shafts engage in a sealed manner at least in partial regions. At least one transporting endless screw element (4b; 4d; 4f) comprising at least one transporting screw thread (9, 10; 14, 15, 16; 19, 20) is placed in the region of the supply opening (21) in the extruder housing (2), and does not engage in a sealing manner in at least one partial region along the axial direction (A).

    摘要翻译: 本发明涉及一种用于连续处理和/或加工散装材料,特别是粉状,颗粒状或絮状产品的多轴挤出机,包括多个轴(3),其以冠状方式布置在空腔中 (1),所述轴平行于所述挤出机的轴向方向(A)延伸,并且在所述冠部内部形成内部处理室(1a),以及在所述外部处理室(1b)外部 王冠。 每个轴承有多个轴向连续的处理元件(4),其至少一部分是具有传送效应的元件(4a; 4c; 4e),并且相邻的轴以至少在 部分地区。 包括至少一个输送螺纹(9,10; 14,15,16; 19,20)的至少一个输送环形螺旋元件(4b; 4d; 4f)被放置在供给开口21的区域 ),并且不沿着轴向(A)在至少一个部分区域中以密封方式接合。

    Ring extruder feed
    5.
    发明授权
    Ring extruder feed 失效
    环挤出机进料

    公开(公告)号:US07040798B2

    公开(公告)日:2006-05-09

    申请号:US10398078

    申请日:2001-07-09

    IPC分类号: B29B7/48 B29B7/60 B29C47/42

    摘要: The invention relates to a multi-screw extruder for the continuous treatment and/or processing of a bulk material, especially a product in powder, granular or flake form, comprising several shafts (3) which are arranged in a ring shape in a cavity (1) of an extruder housing (2) and which extend parallel to the axial direction (A) of the extruder. The extruder housing (2) is provided with axially parallel, concave segments (5a, 6a) of a circle on the radially inner (5) and radially outer (6) surfaces of the cavity (1). These circle segments act as a guide for the axially parallel shafts (3) with their processing elements (4) on the inside (5) or on the outside (6) of the shaft ring (3, . . . ). The inventive improvement lies in the radial extension of the axial partial area of the cavity (1) containing the shafts (3), which is located in the area of the feed opening (9), this radial extension (10b) extending along part of the shaft ring (3, . . . ) in the peripheral direction (U) of the same.

    摘要翻译: 本发明涉及一种用于连续处理和/或加工散装材料,特别是粉末,颗粒或薄片形式的产品的多螺杆挤出机,包括在空腔中以环形形式布置的多个轴(3) 1),其平行于挤出机的轴向(A)延伸。 挤出机壳体(2)在空腔(1)的径向内部(5)和径向外(6)表面上设置有圆形的轴向平行的凹形段(5a,6a)。 这些圆形段作为轴向平行轴(3)的引导件,其轴线平行的轴(3)的轴向平行轴(3)的内侧(5)或其外侧(6)上的处理元件(4)。 本发明的改进在于包含位于进料口(9)的区域中的轴(3)的空腔(1)的轴向部分区域的径向延伸,该径向延伸部分(10b)沿着部分 的轴环(3 ...)在其圆周方向(U)上。

    Method of processing a polycondensate in a multi-screw extruder
    6.
    发明授权
    Method of processing a polycondensate in a multi-screw extruder 失效
    在多螺杆挤出机中加工缩聚物的方法

    公开(公告)号:US06841656B2

    公开(公告)日:2005-01-11

    申请号:US10427975

    申请日:2003-05-02

    摘要: A method for processing a polycondensate to give a granulate formed as pellets is disclosed, whereby the polycondensate is fused in the course of the method and then later resolidified. In an exemplary method, a total time during which the temperature of the polycondensate is above the melting point thereof is less than about 60 seconds. This method can be carried out by a multi-shaft extruder, whereby the degrassing and/or drying of the polycondensate in the solid state occurs at a pressure below atmospheric pressure and/or with addition of an inert gas. The time period, during which the polycondensate remains in the extruder, after being melted therein, amounts to, for example, less than about 15 seconds.

    摘要翻译: 公开了一种缩聚缩聚物的制造方法,其特征在于,制备粒料形成的颗粒,由此缩聚物在该方法中熔融后再重新固化。 在示例性方法中,缩聚物的温度高于其熔点的总时间小于约60秒。 该方法可以通过多轴挤出机进行,由此在低于大气压的压力下和/或加入惰性气体时发生固态的缩聚物的脱丝和/或干燥。 缩聚物在其中熔融之后保留在挤出机中的时间段相当于例如小于约15秒。