WO2017206174A1 - 一种无磨损的叠片螺旋式固液分离机 - Google Patents

一种无磨损的叠片螺旋式固液分离机 Download PDF

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Publication number
WO2017206174A1
WO2017206174A1 PCT/CN2016/084728 CN2016084728W WO2017206174A1 WO 2017206174 A1 WO2017206174 A1 WO 2017206174A1 CN 2016084728 W CN2016084728 W CN 2016084728W WO 2017206174 A1 WO2017206174 A1 WO 2017206174A1
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driving rod
ring
movable ring
wear
liquid separator
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PCT/CN2016/084728
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English (en)
French (fr)
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郑朝志
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郑朝志
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Priority to PCT/CN2016/084728 priority Critical patent/WO2017206174A1/zh
Publication of WO2017206174A1 publication Critical patent/WO2017206174A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/46—Edge filtering elements, i.e. using contiguous impervious surfaces of flat, stacked bodies
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/48—Edge filtering elements, i.e. using contiguous impervious surfaces of spirally or helically wound bodies
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage

Definitions

  • the invention belongs to the technical field of solid-liquid separation devices, and specifically relates to a wear-free laminated spiral solid-liquid separator.
  • Cida 200780018706.9 discloses a stacked screw type solid-liquid separation device, comprising a solid-liquid separation portion having a plurality of adjacent fixing rings and a plurality of movable rings disposed between the adjacent fixing rings, and a through-the-hole At least one screw extending in the solid-liquid separating portion, the movable ring is configured to push the movable ring by a rotating screw, and the object to be treated entering the solid-liquid separating portion is directed toward the solid-liquid separating portion by a rotating screw When the outlet moves, the filtrate separated from the object to be treated is discharged through the solid-liquid separation unit of the solid-liquid separation unit.
  • This stacked screw type solid-liquid separation device causes wear between the movable ring due to contact with the screw shaft.
  • Chinese invention patent 200810043376.5 discloses a novel spiral type solid-liquid separator, which avoids the wear between the movable ring and the screw shaft, and uses the eccentric shaft of the eccentric shaft to drive the movable ring to swim.
  • the driving method of this structure has no other supporting portions on the eccentric shaft, and is prone to deformation.
  • the large machine is difficult to drive due to the larger bearing capacity; the driving rod that drives the movable ring is prone to deformation and bending.
  • the technical problem to be solved by the present invention is to provide a wear-free laminated spiral type solid-liquid separator, which is not easily deformed and is suitable for driving of large equipment.
  • the present invention is implemented as follows:
  • a wear-free laminated spiral type solid-liquid separator comprising a fixing ring, a movable ring, and a screw shaft, wherein the spiral shaft is provided with a staggered fixing ring and a movable ring in a radial direction;
  • the screw shaft is connected to the main driving rod through a transmission mechanism
  • the main driving rod is supported by two or more supporting devices; one or more eccentric devices are further disposed on the main driving rod;
  • Each of the eccentric devices is respectively connected to the auxiliary driving rod through a driving piece; the auxiliary driving rod is sleeved at one end of the movable ring to connect all the movable rings into one body; the two ends of the auxiliary driving rod are provided a limiting hole, wherein the auxiliary driving rod moves within a range defined by the limiting hole;
  • the screw shaft drives the main driving rod to move by the transmission mechanism, and the eccentric device on the active driving rod drives the auxiliary driving rod to move, and the auxiliary driving rod drives all the moving rings to move.
  • a positioning rod is further disposed on the other end of the movable ring to connect all the movable rings into one body.
  • auxiliary driving rod and the movable ring are fixedly connected by a positioning key groove.
  • each of the driving pieces is respectively integrated with one of the movable rings.
  • the transmission mechanism is a gear transmission, a sprocket transmission, or a belt transmission.
  • the outer edge of the fixing ring and the movable ring is elliptical, and the longitudinal direction of the ellipse is consistent with the moving direction of the movable ring.
  • the inner edge of the fixing ring and the movable ring has a non-slip groove.
  • the inner ring of the movable ring at a position corresponding to a complete pitch range of the screw shaft gradually decreases from the outer diameter H of the spiral blade to a certain value, and then gradually increases to H, so that the active ring is completed. It is possible to embed the cavity enclosed by the retaining ring to shear the material and to make the relative position of the movable ring and the fixed ring change more widely.
  • the spiral shaft is an involute spiral shaft, that is, within a complete pitch, the outer diameter H of the spiral shaft gradually decreases to a certain value, and then gradually increases to H, so that the movable ring is as close as possible Embedding into the cavity enclosed by the retaining ring to shear the material, and the relative position of the movable ring and the fixed ring changes more.
  • the screw shaft is an eccentric screw shaft, that is, the connecting shafts of the two ends of the screw shaft are eccentrically arranged with the central axis of the spiral, so that the movable ring is embedded in the cavity enclosed by the fixing ring as much as possible, and the activity is made.
  • the relative position of the ring retaining ring changes more.
  • the invention has the advantages that: 1.
  • the main driving rod of the invention is located outside the solid-liquid separation chamber,
  • the main driving rod is supported by two or more supporting devices.
  • the main driving rod is provided with a plurality of eccentric devices to drive the movable ring movement, which fundamentally solves the problem that the eccentric shaft in the prior art is easily deformed.
  • Anti-slip grooves are provided inside the fixed ring and the movable ring to cut and propel the sludge as much as possible.
  • Figure 1 is a schematic view of the structure of the present invention.
  • FIG. 2 is a schematic structural view of a support plate of the present invention.
  • Fig. 3 is a schematic view showing the structure of a fixing ring according to a first embodiment of the present invention.
  • FIG. 4 is a schematic view showing the structure of an active ring according to a first embodiment of the present invention.
  • Figure 5 is a schematic view showing the structure of a transmission movable ring according to a first embodiment of the present invention.
  • Fig. 6 is a schematic view showing the structure of a fixing ring according to a second embodiment of the present invention.
  • Fig. 7 is a schematic view showing the structure of an active ring according to a second embodiment of the present invention.
  • Figure 8 is a schematic view showing the structure of a transmission movable ring according to a second embodiment of the present invention.
  • Figure 9 is a schematic view showing the structure of a fixing ring of a third embodiment of the present invention.
  • Figure 10 is a schematic view showing the structure of a movable ring according to a third embodiment of the present invention.
  • Figure 11 is a schematic view showing the structure of a transmission movable ring according to a third embodiment of the present invention.
  • Figure 12 is a schematic view showing the structure of an involute screw shaft in the present invention.
  • Figure 13 is a schematic view showing the structure of an eccentric screw shaft in the present invention.
  • a wear-free laminated spiral type solid-liquid separator includes a fixing ring 1, a movable ring 2, and a screw shaft 3.
  • the spiral shaft 3 is provided with a staggered fixing ring 1 and an active ring in the radial direction. 2;
  • the screw shaft 3 is connected to the main driving rod 4 through a transmission mechanism 6, and the transmission mechanism 6 can be a gear transmission, a sprocket transmission, or a belt transmission;
  • the main drive rod 4 is supported by three support plates 7 and is also spaced apart on the main drive rod 4 There are four eccentric bearings 8;
  • Each of the eccentric bearings 8 is connected to the auxiliary driving rod 5 through a driving piece 9, and the auxiliary driving rod 5 is sleeved at one end of the movable ring 2, and all the movable rings 2 are integrally connected.
  • the driving piece 9 is integrated with the movable ring 2, and the movable ring 2 with the driving piece 9 is called a transmission movable ring 21;
  • the support plate 7 is provided with restriction holes 71, 72, a support hole 73 for connecting the fixed ring 1, and a cavity hole 74 for accommodating the solid-liquid separation portion.
  • the auxiliary driving rod 5 passes through the limiting hole 71 on the supporting plate 7, and the linear hole portion on the limiting hole 71 is used for linear movement of the auxiliary driving rod, and the circular hole portion of the limiting hole 71 is used for fixing Main drive rod 4;
  • a positioning rod 10 is further disposed on the other end of the movable ring 2, and all the movable rings 2 are integrally connected.
  • the positioning rod 10 passes through the limiting hole 72 on the supporting plate 7, and the limiting hole 72 is Straight hole for linear movement of the positioning rod 10.
  • the screw shaft 3 drives the main driving rod 4 to move through the transmission mechanism 6.
  • the eccentric bearing 8 on the driving rod 4 drives the transmission movable ring 21 to move linearly, and the transmission movable ring 21 drives all the movable rings 2 to move through the auxiliary driving rod 5;
  • the rod 5 linearly moves under the action of the limiting hole 71, thereby driving all the movable rings 2 to move linearly.
  • the positioning rod 10 is not essential.
  • the auxiliary driving rod 5 and the movable ring 2 are fixedly connected by a positioning key groove (not shown), the movable ring 2 and the auxiliary driving rod 5 are integrated. All of the movable rings 2 are linearly moved together with the secondary drive rod 5.
  • the inner edges of the fixed ring 1, the movable ring 2, and the transmission movable ring 21 are all circular, and the conventional laminated spiral solid-liquid separator adopts such a structure, and the first embodiment of the present invention This structure is also used in the example.
  • the inner ring of the fixed ring 1, the movable ring 2, and the transmission movable ring 21 is provided with a non-slip groove 11 for cutting and propelling the dirt with the greatest capacity. mud.
  • the outer edges of the fixed ring 1, the movable ring 2, and the transmission movable ring 21 are elliptical, and the longitudinal direction of the ellipse is consistent with the moving direction of the movable ring. , to ensure that the movable ring 2 and the fixed ring 1 have a relatively stable overlapping area when moving.
  • the effect of shearing the material can be better by changing the inner diameter of the movable ring 2.
  • the inner ring 2 of the movable ring 2 at a position corresponding to a complete pitch range of the screw shaft 3 gradually decreases from the outer diameter H of the spiral blade to a certain value, and then gradually increases to H, so that the movable ring 2
  • the material enclosed by the fixing ring 1 is embedded as much as possible to shear the material, and the relative position of the movable ring 2 and the fixed ring 1 is changed to a greater extent.
  • Method 1 The involute screw shaft is used, as shown in Fig. 12, that is, within a complete pitch, the outer diameter H of the spiral shaft gradually decreases to a certain value h, and then gradually increases to H.
  • the movable ring is embedded as much as possible into the cavity enclosed by the retaining ring and the relative position of the movable ring retaining ring changes more.
  • Method 2 using an eccentric screw shaft, as shown in FIG. 13, that is, the connecting shaft 31 of the screw shaft 3 and the spiral center shaft 32 are eccentrically arranged, so that the movable ring is embedded as much as possible in the cavity enclosed by the fixing ring. Material and the relative position of the moving ring retaining ring changes more.

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
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Abstract

一种无磨损的叠片螺旋式固液分离机，包括固定环（1）、活动环（2）、和螺旋轴（3），所述螺旋轴（3）径向上设有交错排列的固定环（1）和活动环（2）；还包括一主驱动杆（4）、一副驱动杆（5）；螺旋轴（3）通过一传动机构连接主驱动杆（4）；主驱动杆（4）通过两个或两个以上的支撑装置进行支撑；在所述主驱动杆（4）上还设置有一个或一个以上的偏心装置；每一个偏心装置分别通过一驱动片（9）连接副驱动杆（5）；副驱动杆（5）套设于活动环（2）的一端，将全部活动环（2）连接为一体；螺旋轴（3）通过传动机构（6）带动主驱动杆（4）运动，主动驱动杆（4）上的偏心装置带动副驱动杆（5）运动，副驱动杆（5）带动全部活动环（2）运动。该叠片螺旋式固液分离机的驱动杆不容易变形，适用于大型设备的驱动。

Description

一种无磨损的叠片螺旋式固液分离机 【技术领域】
本发明属于固液分离装置技术领域，具体是指一种无磨损的叠片螺旋式固液分离机。
【背景技术】
中国发明专利200780018706.9公开了一种叠螺式固液分离装置，具备有相邻的多个固定环及配置在该相邻的固定环之间的多个活动环的固液分离部、和贯通该固液分离部并延伸的至少一根螺杆，该活动环形成为通过旋转的螺杆推动上述活动环，并且一边通过旋转的螺杆使进入到上述固液分离部中的处理对象物朝向固液分离部的出口移动，一边使从该处理对象物分离的滤液通过固液分离部的固液分离部外排出。这种叠螺式固液分离装置由于活动环与螺旋轴接触，导致二者之间磨损。
中国发明专利200810043376.5公开了一种新型螺旋式固液分离机，为避免活动环与螺旋轴之间的磨损，其采用偏心轴的偏心驱动活动环游动。但这种结构的驱动方式，偏心轴上没有其他支撑部，容易出现变形，大的机器由于承重力更大，难以实现驱动；带动活动环的驱动杆容易出现变形弯曲。
【发明内容】
本发明所要解决的技术问题在于提供一种无磨损的叠片螺旋式固液分离机，驱动杆不容易变形，适用于大型设备的驱动。
本发明是这样实现的：
一种无磨损的叠片螺旋式固液分离机，包括固定环、活动环、和螺旋轴，所述螺旋轴径向上设有交错排列的固定环和活动环；
还包括一主驱动杆、一副驱动杆；
所述螺旋轴通过一传动机构连接所述主驱动杆；
所述主驱动杆通过两个或两个以上的支撑装置进行支撑；在所述主驱动杆上还设置有一个或一个以上的偏心装置；
每一个所述偏心装置分别通过一驱动片连接所述副驱动杆；所述副驱动杆套设于所述活动环的一端，将全部活动环连接为一体；所述副驱动杆的两端设有限位孔，使得所述副驱动杆在所述限位孔所限定的范围内运动；
所述螺旋轴通过所述传动机构带动所述主驱动杆运动，所述主动驱动杆上的偏心装置带动所述副驱动杆运动，所述副驱动杆带动全部活动环运动。
进一步地，还包括一定位杆，该定位杆套设于所述活动环的另一端，将全部活动环连接为一体。
进一步地，所述副驱动杆与所述活动环之间通过定位键槽进行固定连接。
进一步地，每一个所述驱动片分别与一所述活动环连成一体。
进一步地，所述传动机构为齿轮传动、链轮传动、或皮带传动。
进一步地，所述固定环、活动环的外边缘为椭圆形，椭圆形的长边方向与活动环的运动方向一致。
进一步地，所述固定环、活动环的内边缘具有防滑凹槽。
进一步地，在所述螺旋轴的一个完整的螺距范围所对应位置的活动环，其内径从螺旋叶片外径H开始逐渐减小至某一数值，后又逐渐增大至H，使得活动环尽可能地嵌入由固定环围成的腔体内进行剪切物料，并使活动环和固定环的相对位置变化幅度更大。
进一步地，所述螺旋轴为渐开式螺旋轴，即在一个完整的螺距内，螺旋轴叶片外径H逐渐减小至某一数值，后又逐渐增大至H，使得活动环尽可能地嵌入由固定环围成的腔体内进行剪切物料，并使活动环与固定环的相对位置变化幅度更大。
进一步地，所述螺旋轴为偏心螺旋轴，即螺旋轴的两端连接轴与螺旋中心轴进行偏心设置，让活动环尽可能地嵌入由固定环围成的腔体内剪切物料，并使活动环固定环的相对位置变化幅度更大。
本发明的优点在于：1、本发明的主驱动杆位于固液分离腔体的外部，采 用两个或两个以上的支撑装置对主驱动杆进行支撑，主驱动杆上设有多个偏心装置带动活动环运动，从根本上解决了现有技术中的偏心轴容易变形的问题。2、在固定环和活动环内部设置防滑凹槽，能够尽最大的能力剪切与推进污泥。
【附图说明】
下面参照附图结合实施例对本发明作进一步的描述。
图1是本发明结构示意图。
图2是本发明的支撑板的结构示意图。
图3是本发明第一实施例的固定环结构示意图。
图4是本发明第一实施例的活动环结构示意图。
图5是本发明第一实施例的传动活动环结构示意图。
图6是本发明第二实施例的固定环结构示意图。
图7是本发明第二实施例的活动环结构示意图。
图8是本发明第二实施例的传动活动环结构示意图。
图9是本发明第三实施例的固定环结构示意图。
图10是本发明第三实施例的活动环结构示意图。
图11是本发明第三实施例的传动活动环结构示意图。
图12是本发明中渐开式螺旋轴的结构示意图。
图13是本发明中偏心螺旋轴的结构示意图。
【具体实施方式】
如图1所示，一种无磨损的叠片螺旋式固液分离机，包括固定环1、活动环2、和螺旋轴3，螺旋轴3径向上设有交错排列的固定环1和活动环2；
还包括一主驱动杆4、一副驱动杆5；
螺旋轴3通过一传动机构6连接主驱动杆4，传动机构6可以是齿轮传动、链轮传动、或皮带传动；
主驱动杆4通过三个支撑板7进行支撑，在主驱动杆4上还间隔地设置 有四个偏心轴承8；
每一个偏心轴承8分别通过一驱动片9连接副驱动杆5，副驱动杆5套设于活动环2的一端，将全部活动环2连接为一体。而驱动片9与活动环2连成一体，该带有驱动片9的活动环2称为传动活动环21；
如图2所示，支撑板7上设有限位孔71、72、用于连接固定环1的支柱孔73、以及用于容纳固液分离部的腔体孔74。副驱动杆5穿过支撑板7上的限位孔71，限位孔71上的直线孔部分用于给副驱动杆作直线运动让位，限位孔71上的圆形孔部分用于固定主驱动杆4；
还包括一定位杆10，该定位杆10套设于活动环2的另一端，将全部活动环2连接为一体，定位杆10穿过支撑板7上的限位孔72，限位孔72为直线孔，用于给定位杆10作直线运动让位。
螺旋轴3通过传动机构6带动主驱动杆4运动，主动驱动杆4上的偏心轴承8带动传动活动环21作直线运动，传动活动环21通过副驱动杆5带动全部活动环2运动；副驱动杆5在限位孔71的作用下作直线运动，从而带动全部活动环2作直线运动。
需要说明的是，定位杆10并不是必须的，当副驱动杆5与活动环2之间通过定位键槽(图未示)进行固定连接时，则活动环2与副驱动杆5连成为一体，全部活动环2与副驱动杆5一起作直线运动。
如图3至图5所示，固定环1、活动环2，以及传动活动环21的内边缘均为圆形，传统叠片螺旋式固液分离机均采用此种结构，本发明第一实施例也采用此种结构。
如图6至图8所示，作为本发明第二实施例，固定环1、活动环2，以及传动活动环21的内边缘设有防滑凹槽11，能够尽最大的能力剪切与推进污泥。
如图9至图11所示，作为本发明第三实施例，固定环1、活动环2，以及传动活动环21的外边缘为椭圆形，椭圆形的长边方向与活动环的运动方向一致，保证活动环2与固定环1运动时具有相对稳定的重叠面积。
值得一提的是，作为另一具体实施例，可以通过采用改变活动环2内径的方式使剪切物料的效果更好。具体是，在螺旋轴3的一个完整的螺距范围所对应位置的活动环2，其内径从螺旋叶片外径H开始逐渐减小至某一数值，后又逐渐增大至H，使得活动环2尽可能地嵌入由固定环1围成的腔体内进行剪切物料，并使活动环2和固定环1的相对位置变化幅度更大。
另外，也可以通过改变螺旋轴3结构的方式使得剪切物料的效果更好，具体可以采用以下两种方式：
方式一：采用渐开式螺旋轴，如图12所示，即在一个完整的螺距内，螺旋轴叶片外径H逐渐减小至某一数值h，后又逐渐增大至H。让活动环尽可能地嵌入由固定环围成的腔体内剪切物料并活动环固定环的相对位置变化幅度更大。
方式二：采用偏心螺旋轴，如图13所示，即螺旋轴3的两端连接轴31与螺旋中心轴32进行偏心设置，让活动环尽可能地嵌入由固定环围成的腔体内剪切物料，并使活动环固定环的相对位置变化幅度更大。
以上所述仅为本发明的较佳实施用例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内，所作的任何修改、等同替换以及改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种无磨损的叠片螺旋式固液分离机，包括固定环、活动环、和螺旋轴，所述螺旋轴径向上设有交错排列的固定环和活动环；
    其特征在于：还包括一主驱动杆、一副驱动杆；
    所述螺旋轴通过一传动机构连接所述主驱动杆；
    所述主驱动杆通过两个或两个以上的支撑装置进行支撑；在所述主驱动杆上还设置有一个或一个以上的偏心装置；
    每一个所述偏心装置分别通过一驱动片连接所述副驱动杆；所述副驱动杆套设于所述活动环的一端，将全部活动环连接为一体；所述副驱动杆的两端设有限位孔，使得所述副驱动杆在所述限位孔所限定的范围内运动；
    所述螺旋轴通过所述传动机构带动所述主驱动杆运动，所述主动驱动杆上的偏心装置带动所述副驱动杆运动，所述副驱动杆带动全部活动环运动。
  2. 如权利要求1所述的一种无磨损的叠片螺旋式固液分离机，其特征在于：还包括一定位杆，该定位杆套设于所述活动环的另一端，将全部活动环连接为一体。
  3. 如权利要求1所述的一种无磨损的叠片螺旋式固液分离机，其特征在于：所述副驱动杆与所述活动环之间通过定位键槽进行固定连接。
  4. 如权利要求1所述的一种无磨损的叠片螺旋式固液分离机，其特征在于：每一个所述驱动片分别与一所述活动环连成一体。
  5. 如权利要求1所述的一种无磨损的叠片螺旋式固液分离机，其特征在于：所述传动机构为齿轮传动、链轮传动、或皮带传动。
  6. 如权利要求1所述的一种无磨损的叠片螺旋式固液分离机，其特征在于：所述固定环、活动环的外边缘为椭圆形，椭圆形的长边方向与活动环的运动方向一致。
  7. 如权利要求1所述的一种无磨损的叠片螺旋式固液分离机，其特征在于：所述固定环、活动环的内边缘具有防滑凹槽。
  8. 如权利要求1所述的一种无磨损的叠片螺旋式固液分离机，其特征在 于：在所述螺旋轴的一个完整的螺距范围所对应位置的活动环，其内径从螺旋叶片外径H开始逐渐减小至某一数值，后又逐渐增大至H，使得活动环尽可能地嵌入由固定环围成的腔体内进行剪切物料，并使活动环和固定环的相对位置变化幅度更大。
  9. 如权利要求1所述的一种无磨损的叠片螺旋式固液分离机，其特征在于：所述螺旋轴为渐开式螺旋轴，即在一个完整的螺距内，螺旋轴叶片外径H逐渐减小至某一数值，后又逐渐增大至H，使得活动环尽可能地嵌入由固定环围成的腔体内进行剪切物料，并使活动环与固定环的相对位置变化幅度更大。
  10. 如权利要求1所述的一种无磨损的叠片螺旋式固液分离机，其特征在于：所述螺旋轴为偏心螺旋轴，即螺旋轴的两端连接轴与螺旋中心轴进行偏心设置，让活动环尽可能地嵌入由固定环围成的腔体内剪切物料，并使活动环固定环的相对位置变化幅度更大。
PCT/CN2016/084728 2016-06-03 2016-06-03 一种无磨损的叠片螺旋式固液分离机 WO2017206174A1 (zh)

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JP4374396B1 (ja) * 2008-12-29 2009-12-02 アムコン株式会社 固液分離装置
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