CN101288985A - 连续混炼挤压机转子 - Google Patents

连续混炼挤压机转子 Download PDF

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CN101288985A
CN101288985A CNA2008100118794A CN200810011879A CN101288985A CN 101288985 A CN101288985 A CN 101288985A CN A2008100118794 A CNA2008100118794 A CN A2008100118794A CN 200810011879 A CN200810011879 A CN 200810011879A CN 101288985 A CN101288985 A CN 101288985A
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mixing
rotor
materials
continuous
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何桂红
刘明达
张福国
刘鑫传
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Hengli Petrochemical Co Ltd
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Dalian Rubber and Plastics Machinery Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads
    • B29C48/645—Screws with two or more threads neighbouring threads and channels having identical configurations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/465—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft each shaft comprising rotor parts of the Banbury type in addition to screw parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
    • B29B7/483—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs the other mixing parts being discs perpendicular to the screw axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/55—Screws having reverse-feeding elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

本发明涉及连续混炼挤压造粒机组的双转子。连续混炼挤压机转子，每根转子设有加料段和混炼段，混炼段由正向与反向多棱螺旋组成。整体式结构转子，大大提高了转子的刚性；同时也省略了芯轴的加工。加料段采用啮合或半啮合的多头螺纹，对物料进行强制输送；混炼段由正向与反向两段多棱螺旋组成，正向段把物料向前推，而反向段则使物料向回运动，使物料在多个相对独立的混炼空间内不断地被挤压、剪切、分散、混合、推进。具有极强的混炼与塑化作用，长径比通常小于12。本发明可以广泛应用于热塑性、或高粘度、或膏状物料连续混炼挤压造粒系统。

Description

连续混炼挤压机转子
一.技术领域
本发明涉及连续混炼挤压造粒机组，特别是造粒机组的双转子。
二.背景技术
混炼挤压造粒机组是石化行业乙烯工程最重要的装备之一。螺杆(在连续混炼挤压机机组中称为转子)是混炼挤压造粒机组的不可缺少的最核心部件。其作用是将加入的物料进行输送、压缩、混炼塑化、计量建压挤出等；为下一道工序提供混炼塑化良好、温度均匀一致、压力稳定、挤出量稳定的熔体；是完成对聚合物进行混炼、塑化等的功能部件，是评价机组性能的关键。
在混炼挤压造粒机组中，传统的螺杆为同向或异向旋转的，具有不同螺纹元件的积木组合式，即整根螺杆由螺杆芯轴与螺纹元件组成(如附图1所示)。这种组合形式具有优越的工艺性能：可根据不同加工物料的工艺，更换螺旋元件，改变螺杆组合形式，以达到预想的工艺效果；另外更换备件也比较方便，便于拆卸和维修，便于解体清洗。但是通常为了达到需要的塑化程度，螺杆的长径比比较大(一般为15-56)；这样芯轴的材料选择与加工就增大了困难；螺杆组合时的装配难度也随之加大。
三.发明内容
本发明的目的是克服上述不足问题，提供一种连续混炼挤压机转子，既具有传统螺杆挤出机的强制输送塑化能力，又兼备了橡胶塑料密炼机极强的混炼能力。
本发明为实现上述目的所采用的技术方案是：连续混炼挤压机转子，每根转子设有加料段和混炼段，混炼段由正向与反向多棱螺旋组成。
所述加料段采用啮合或半啮合的多头螺纹。
所述每根转子设有一个加料段。
所述转子上设有一个以上混炼段，各混炼段均为由正向与反向多棱螺旋组成螺纹，或者由正向与反向多棱螺旋组成螺纹混炼段与单向螺旋混炼段组合。
所述转子上设有一个加料段，加料段为啮合多头螺纹，或者为半啮合的多头螺纹，或者半啮合多头螺纹和啮合多头螺纹组合。
本发明与现有同类产品相比，具有显著的特点，每根转子上设有加料段和混炼段，形成整体式结构转子，大大提高了转子的刚性；同时也省略了芯轴的加工。加料段采用啮合或半啮合的多头螺纹，对物料进行强制输送；混炼段由正向与反向两段多棱螺旋组成，正向段把物料向前推，而反向段则使物料向回运动，这样物料在正向力和反向力的共同作用下，产生纵向、横向的拉伸和剪切，使物料在多个相对独立的混炼空间内不断地被挤压、剪切、分散、混合、推进。尤其对于那些难分散、混合、塑化的物料，采用本发明转子更能体现出它的超强混炼特性。由于其具有极强的混炼与塑化作用，因而长径比通常小于12。本发明可以广泛应用于热塑性、或高粘度、或膏状物料连续混炼挤压造粒系统。
四、附图说明：
图1为传统结构示意思图。
图2为本发明结构示意图。
图3为图2中的C-C剖视图。
五、具体实施方式：
下面结合具体实施方式对本发明作进一步详细说明，但本发明不限于具体实施例。
如图2所示的连续混炼挤压机转子，每根转子芯轴6设有一个加料段5和多个混炼段的整体式结构，长径比为10，如图2和3所示混炼段由正向与反向两段多棱螺旋组成，这种特殊的多棱转子结构正向段把物料向前推，而反向段则使物料向回运动，混炼效果极强；加料段5为啮合多头螺纹，或半啮合的多头螺纹，对物料进行强制输送。
每根转子上的混炼段可以采用相同或不同结构，如混炼段一4采用由正向与反向两段多棱螺旋组成，混炼段二2可以采用单向螺旋。
工作时，物料首先经由多头螺纹的加料段强制输送到混炼段一，进行在正向力和反向力作用下混炼后，经由半啮合或非啮合多头螺纹输送段3输送到混炼段二，混炼后的物料进入排料段1。

Claims (5)

1、连续混炼挤压机转子，转子为双转子，其特征是：每根转子设有加料段(5)和混炼段，混炼段由正向与反向多棱螺旋组成的螺纹。
2、根据权利要求1所述的连续混炼挤压机转子，其特征是：加料段(5)为啮合或半啮合的多头螺纹。
3、根据权利要求1或2所述的连续混炼挤压机转子，其特征是：每根转子设有一个加料段(5)。
4、根据权利要求1或2所述的连续混炼挤压机转子，其特征是：转子上设有一个以上混炼段，各混炼段均为由正向与反向多棱螺旋组成螺纹，或者由正向与反向多棱螺旋组成螺纹混炼段与单向螺旋混炼段组合。
5、根据权利要求1或2所述的连续混炼挤压机转子，其特征是：转子上设有一个加料段，加料段为啮合多头螺纹，或者为半啮合的多头螺纹，或者半啮合多头螺纹和啮合多头螺纹组合。
CNA2008100118794A 2008-06-16 2008-06-16 连续混炼挤压机转子 Pending CN101288985A (zh)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102225317A (zh) * 2011-06-10 2011-10-26 北京化工大学 锥形双转子连续混炼机组
CN102366995A (zh) * 2011-11-16 2012-03-07 大连橡胶塑料机械股份有限公司 组合式双螺杆连续混炼挤出机
CN103496050A (zh) * 2013-09-27 2014-01-08 大连橡胶塑料机械股份有限公司 橡胶挤出过滤机低温升型螺杆
CN110126117A (zh) * 2019-06-13 2019-08-16 南京永睿机械制造有限公司 一种双转子连续式密炼机
CN111744391A (zh) * 2019-03-29 2020-10-09 日本斯频德制造株式会社 能够检测压力及分散度的混炼装置及其制造方法
CN114701099A (zh) * 2022-04-07 2022-07-05 华南理工大学 一种模块化高分子材料双转子泵式输运设备及输运方法
WO2023061336A1 (zh) * 2021-10-14 2023-04-20 无锡市博宇塑机有限公司 密炼挤出机

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102225317A (zh) * 2011-06-10 2011-10-26 北京化工大学 锥形双转子连续混炼机组
CN102366995A (zh) * 2011-11-16 2012-03-07 大连橡胶塑料机械股份有限公司 组合式双螺杆连续混炼挤出机
CN103496050A (zh) * 2013-09-27 2014-01-08 大连橡胶塑料机械股份有限公司 橡胶挤出过滤机低温升型螺杆
CN103496050B (zh) * 2013-09-27 2015-06-24 大连橡胶塑料机械股份有限公司 橡胶挤出过滤机低温升型螺杆
CN111744391A (zh) * 2019-03-29 2020-10-09 日本斯频德制造株式会社 能够检测压力及分散度的混炼装置及其制造方法
CN111744391B (zh) * 2019-03-29 2023-03-17 日本斯频德制造株式会社 能够检测压力及分散度的混炼装置及其制造方法
CN110126117A (zh) * 2019-06-13 2019-08-16 南京永睿机械制造有限公司 一种双转子连续式密炼机
WO2023061336A1 (zh) * 2021-10-14 2023-04-20 无锡市博宇塑机有限公司 密炼挤出机
CN114701099A (zh) * 2022-04-07 2022-07-05 华南理工大学 一种模块化高分子材料双转子泵式输运设备及输运方法
CN114701099B (zh) * 2022-04-07 2023-08-08 华南理工大学 一种模块化高分子材料双转子泵式输运设备及输运方法

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Application publication date: 20081022