A CO-ROTATING SELF-CLEANING TWO-SCREW EXTRUDER WITH A GRADUAL NUMBER OF THREADS AND THROUGH SELF-CLEANING FUNCTION AND A PROCESSING METHOD USING THE SAME
    1.
    发明公开
    A CO-ROTATING SELF-CLEANING TWO-SCREW EXTRUDER WITH A GRADUAL NUMBER OF THREADS AND THROUGH SELF-CLEANING FUNCTION AND A PROCESSING METHOD USING THE SAME 审中-公开
    具有更多数量的螺纹和自清洁功能的共旋转自清洁双螺杆挤出机及使用该自动清洁功能的加工方法

    公开(公告)号:EP3191289A1

    公开(公告)日:2017-07-19

    申请号:EP16829595.4

    申请日:2016-03-17

    摘要: A co-rotating self-cleaning two-screw extruder with a gradual number of threads and through self-cleaning function, and a processing method using the same, are disclosed. The screw assembly in the extruder includes a first screw (3) and a second screw (4) that co-rotate at the same speed in engagement; the first screw (3) includes a first single threaded element, a first transition element, a multiple threaded element, a second transition element and a second single threaded element that are connected in sequence; and the second screw (4) includes a first single threaded element, a third transition element, a multiple threaded element, a fourth transition element and a second single threaded element that are connected in sequence. The materials are transferred by rotation of the first (3) and second screws (4), and get their respective compositions mixed based on the structure of a gradual number of threads; with the flow passage expanded, contracted and re-expanded in shape in sequence, the materials undergo the single-to-multiple threaded, multiple-to-single threaded and again single-to-multiple threaded chaotic mixing in sequence; and the first and second screws achieve the self-cleaning effect by wiping each other.

    摘要翻译: 公开了一种具有逐渐数量的螺纹并且通过自清洁功能的同向旋转自清洁双螺杆挤出机,以及使用其的处理方法。 挤出机中的螺杆组件包括以相同的啮合速度共同旋转的第一螺杆(3)和第二螺杆(4) 所述第一螺钉(3)包括依次连接的第一单螺纹元件,第一过渡元件,多螺纹元件,第二过渡元件和第二单螺纹元件; 并且第二螺钉(4)包括依次连接的第一单螺纹元件,第三过渡元件,多螺纹元件,第四过渡元件和第二单螺纹元件。 通过第一螺杆(3)和第二螺杆(4)的旋转来传送材料,并且基于逐渐数量的螺纹的结构来获得它们各自的成分混合; 随着流道的顺序扩张,收缩和再膨胀成形,材料依次经历单螺纹,多螺​​纹,单螺纹再次单螺纹混沌混合; 并且第一和第二螺钉通过彼此擦拭来实现自清洁效果。

    A CO-ROTATING SELF-CLEANING TWO SCREW EXTRUDER WITH AN INTERNAL BAFFLE
    2.
    发明公开
    A CO-ROTATING SELF-CLEANING TWO SCREW EXTRUDER WITH AN INTERNAL BAFFLE 审中-公开
    MITROTIERENDER SELBSTREINIGANT DOPPELSCHNECKENEXTRUDER MIT INTERNER ABLENKPLATTE

    公开(公告)号:EP3122532A1

    公开(公告)日:2017-02-01

    申请号:EP15875203.0

    申请日:2015-12-28

    IPC分类号: B29C47/40 B29C47/60 B29C47/62

    摘要: The baffle will generate chaotic mixing in the screw channel caused by the hyperbolic perturbation. Topological chaos is also introduced into the screw channel by the mechanism ‘one part divided into two parts, then two parts converging into one part, and then one part divided into two parts once more’. Each of the screws in the present invention uses an asymmetrical flow channel geometrical shape, such that a periodic action like ‘compression—expansion—further compression—expansion further’ works. The above three enhancement mechanisms work together to efficiently accelerate melting and mixing.

    摘要翻译: 在此提供具有两个同向旋转螺钉的自清洁挤出设备及其方法。 所述装置包括螺杆机构,筒体(1),进料口(10),通气口(11)和排出口(12)。 所述螺杆机构包括具有一个尖端(3)的第一螺钉和具有两个尖端(4)的第二螺钉。 在第一个螺丝的通道中有挡板,挡板的高度低于螺旋桨的高度。 挡板将导致双曲线扰动在挡板顶部上方的“图8”流动图案的形状。 第一和第二螺丝以相同的速度旋转并且始终相互接触,从而实现自清洁功能。 挡板将在由双曲扰动引起的螺旋通道中产生混沌混乱。 通过机构将一个部分分为两部分,然后两部分收敛成一部分,然后一部分再分成两部分,将螺旋通道引入拓扑混沌。 本发明中的每个螺钉使用不对称的流动通道几何形状,使得诸如“压缩膨胀 - 进一步压缩膨胀的进一步”的周期性动作起作用。 上述三种增效机制共同作用,有效加速熔化和混合。