SU1634511A2 - Screw mixer for processing polymers - Google Patents

Screw mixer for processing polymers Download PDF

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Publication number
SU1634511A2
SU1634511A2 SU884454464A SU4454464A SU1634511A2 SU 1634511 A2 SU1634511 A2 SU 1634511A2 SU 884454464 A SU884454464 A SU 884454464A SU 4454464 A SU4454464 A SU 4454464A SU 1634511 A2 SU1634511 A2 SU 1634511A2
Authority
SU
USSR - Soviet Union
Prior art keywords
screws
housing
turns
axes
eccentricities
Prior art date
Application number
SU884454464A
Other languages
Russian (ru)
Inventor
Сергей Викторович Коновалов
Анатолий Иванович Багно
Виктор Васильевич Бастрыгин
Мария Александровна Зороастрова
Александр Михайлович Гольман
Original Assignee
Тамбовское Научно-Производственное Объединение Полимерного Машиностроения "Полимермаш"
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Priority to SU884454464A priority Critical patent/SU1634511A2/en
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Publication of SU1634511A2 publication Critical patent/SU1634511A2/en

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Classifications

    • 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
    • B29B7/484—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 with two shafts provided with screws, e.g. one screw being shorter than the other
    • 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
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B29B7/489—Screws
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Abstract

Изобретение относитс  к оборудованию дл  переработки полимерных материалов. Целью изобретени   вл етс  повышение производительности за счет интенсификации процесса смешени  полимеров. Черв чный смеситель, имеющий выходное отверстие, содержит корпус, в котором размещены два двухзаходных черв ка с переменной высотой витков. Внутренние поверхности корпуса , охватывающие каждый из черв ков, выполнены в виде чередующихс  сужающихс  и расшир ющихс  в направлении выпускного отверсти  конусных участков В зоне указанных участков корпуса черв ки выполнены с эксцентричными относительно их осей гребн ми витков кареток. Эксцентриситеты витков диаметрально противоположны друг другу в каждом заходе. Сердечники черв ков выполнены концентричными их ос м. Перерабатываемый материал, поступа  в серповидные зазоры, образованные эксцентриситетами гребней витков нарезок и корпусом, подвергаетс  интенсивному процессу перемешивани , что приводит к повышению производительности смесител . 5 ил. (Ј (ЛThe invention relates to equipment for the processing of polymeric materials. The aim of the invention is to increase productivity by intensifying the polymer blending process. A screw mixer, having an outlet, includes a housing in which two two-way screws with a variable height of turns are placed. The inner surfaces of the housing, which cover each of the screws, are made in the form of alternating tapering sections extending in the direction of the outlet orifice. In the area of the said areas of the housing, the screws of the carriages are eccentric relative to their axes. The eccentricities of the turns are diametrically opposed to each other in each approach. The cores of the screws are concentric with their axes. The material being processed enters the crescent-shaped gaps formed by the eccentricities of the crests of the thread turns and the body, and is subjected to an intensive mixing process, which leads to an increase in the productivity of the mixer. 5 il. (Ј (L

Description

Изобретение относитс  к оборудованию дл  переработки полимерных материалов, преимущественно дл  смешени  и диспергировани  резиновых смесей.The invention relates to equipment for the processing of polymeric materials, preferably for mixing and dispersing rubber compounds.

Целью изобретени   вл етс  повышение производительности за счет интенсификации процесса смешени  полимеров.The aim of the invention is to increase productivity by intensifying the polymer blending process.

На фиг. 1 изображен предлагаемый смеситель , общий вид, разрез; на фиг. 2 - развертка черв ков с выступами и впадинами , образованными расшир ющимис  и сужающимис  конусными участками, с указанием расположени  минимальных и максимальных по глубине участков гребней витков; на фиг. 3 - сечение А-А на фиг. 1; на фиг. 4 - сечение Б-Б на фиг. 1; на фиг. 5 - узел I на фиг. 1.FIG. 1 shows the proposed mixer, general view, section; in fig. 2 - scanning of screws with protrusions and depressions formed by expanding and tapering conical sections, indicating the location of the minimum and maximum depth sections of the crests of the crests; in fig. 3 is a section A-A in FIG. one; in fig. 4 is a section BB in FIG. one; in fig. 5 shows the node I in FIG. one.

Черв чный смеситель дл  переработки полимеров состоит из корпуса 1 с загрузочной воронкой 2 и выпускным отверстием 3 и двух сопр женных между собой двухзаходных черв ков 4 и 5 с переменной высотой витков в зоне смешени . Корпус I образован двум  полукорпусами 6 и 7. Внутренние поверхности корпуса 1, охватывающие каждый из черв ков 4 и 5, выполнены в виде чередующихс  сужающихс  8 и расшир ющихс  9 в направлении выпускного отверсти  3 конусных участков с образованием кольцеобразных выступов 10 и впадин 11. Конусные участки 8 и 9, охватывающие один черв к 4, смещены относительно конусных участков 8 и 9, охватывающих черв к 5, дл  размещени  впадин 11, охватывающих черв к 4, противоположно выступам 10, охватывающим черв к 5.A screw mixer for polymer processing consists of a housing 1 with a feed funnel 2 and an outlet hole 3 and two twin-threaded screws 4 and 5, which are conjugate to each other, with a variable height of turns in the mixing zone. The housing I is formed by two semi-hulls 6 and 7. The inner surfaces of the housing 1, covering each of the screws 4 and 5, are made in the form of alternating tapering 8 and extending 9 in the direction of the outlet 3 of the conical sections with the formation of annular projections 10 and cavities 11. Tapered sections 8 and 9, covering one worm to 4, are offset relative to conical sections 8 and 9, spanning the worm to 5, to accommodate valleys 11, spanning the worm to 4, opposite protrusions 10, spanning the worm to 5.

Гребни витков черв ков выполнены эксцентричными относительно осей черв ков сThe crests of turns of screws are eccentric with respect to the axis of screws with

0505

соwith

4 СП4 SP

рR

диаметрально противоположными и равными по величине эксцентриситетами Е| и ЕЗ в соседних заходах нарезки, а поверхности сердечников нарезки черв ков 4 и 5 выполнены концентричными относительно осей черв ков За счет этого образуютс  минимальные (12 и 13) и максимальные (14 и 15) по высоте гребни витков черв ков. Над вершинами витков черв ков, имеющих минимальную высоту на выступах 10 корпуса , выполнены кольцевые проточки 16diametrically opposed and equal eccentricities E | and EZ in the neighboring cuttings, and the surfaces of the cores of the cutting of screws 4 and 5 are concentric with respect to the axis of the screws. Due to this, minimum (12 and 13) and maximum (14 and 15) ridges of worms are formed. Over the tops of the turns of screws, having a minimum height on the ledges 10 of the body, are made annular grooves 16

В угловых выступах 17 полукорпусов 6 и 7 выполнены срезы 19 дл  сообщени  черв ков между собой Черв ки установлены в сопр жени х между собой так, что максимальна  высота гребн  одного черв ка соответствует минимальной высоте гребн  другого черв ка и наоборот, с возможностью обкатывани  их друг по другуIn the corner projections 17 of the semi-bodies 6 and 7, sections 19 are made to communicate the screws between each other. The screws are mounted in mates with each other so that the maximum height of the ridge of one screw corresponds to the minimum height of the ridge of the other screw and vice versa. by friend

Черв чный смеситель работает следующим образомWorm mixer works as follows

При поступлении материала в загрузочную воронку 2 витки черв ков 4 и 5 подают его в зону загрузки, а затем и к выходному отверстию 3 Проход  зону смешени , материал делитс  на различные потоки за счет чередующихс  кольцеобразных выступов 10 и затем собираетс  во впадинах 11, образованных конусными участками 8 и 9, перемещаетс  в продольном направлении между витками черв ков и в поперечном направлении от одного черв ка к другому за счет серповидных за- юров между стенками корпуса и эксцентричными витками черв ков Поскольку выступы 10 и впадины 11 в смесителе расположены над одним из черв ков на рассто нии В (фиг 2) друг от друга, равном полушагу нарезки черв ка, также как и между ДВУМЯ выступами 10 и впадинами 11 над сопр гаемыми черв ками, материал соедин етс  в потоки и разъедин етс  более часто, что способствует большей интенсификации процесса смешени  материала.When the material enters the feed hopper 2, the turns of screws 4 and 5 feed it into the loading zone, and then to the outlet 3. The passage is a mixing zone, the material is divided into different streams by alternating annular projections 10 and then collected in troughs 11 formed by conical sections 8 and 9, moves in the longitudinal direction between the turns of the screws and in the transverse direction from one screw to another due to crescent-shaped zuru between the walls of the housing and the eccentric turns of the screws because the projections 10 and the bottom In the mixer, the 11s are located above one of the screws at a distance B (Fig 2) from each other, equal to the half thread of the screw cutting, as well as between TWO protrusions 10 and the valleys 11 above the matching screws, it is disconnected more often, which contributes to a greater intensification of the material mixing process.

При работе черв чного смесител  нарезки черв ков в зоне смешени  обкатываютс  друг по другу, что обуславливает создание большего давлени  материала в осевом направлении , стабилизации перемещени  его через кольцевые выступы 10 корпуса 1. Процесс смешени  увеличиваетс  при диспергировании материала в серповидных зазорах , образованных эксцентриситетами EI и Е2 и корпусом между максимальными и минимальными глубинами нарезки, образованными минимальными 12, 13 и максимальными 14, 15 высотами витков черв ковWhen the screw mixer works, cutting the screws in the mixing zone rolls around each other, which creates a greater pressure of the material in the axial direction, stabilizing its movement through the annular projections 10 of the housing 1. The mixing process increases as the material disperses in the crescent gaps formed by the eccentricities EI and E2 and the body between the maximum and minimum cutting depths formed by the minimum 12, 13 and maximum 14, 15 heights of turns of screws

Создание большего количества повтор ю- 5 щихс  поперечных протоков материала с черв ка на черв к, более частое разделение и соединение потоков при условии дополнительных деформаций сдвига и перемешивани  в серповидных зазорах, образованных эксцентриситетами EI и Е2 и корпусом , позвол ет интенсифицировать по сравнению с прототипом процесс перемешивани  материала, а как следствие этого, повысить производительность смесител  при его применении в производстве и переработ- 5 ке резиновых смесейCreating more repeatable transverse duct material from worm to worm to, more frequent separation and connection of the fluxes under the condition of additional shear deformation and mixing in the crescent-shaped gaps formed by the eccentricities EI and E2 and the body, allows to intensify compared to the prototype the process of mixing the material, and as a result, improve the performance of the mixer when it is used in the production and processing of rubber mixtures

Claims (1)

Формула изобретени Invention Formula Черв чный смеситель дл  переработки полимеров по авт ев № 1382645, отличаю0 щийс  тем, что, с целью повышени  производительности за счет интенсификации процесса смешени  полимеров, в зоне чередующихс  сужающихс  и расшир ющихс  в направлении выпускного отверсти  конусных участков внутренней поверхности корпусаScrew-type mixer for processing polymers according to Carts No. 1382645, characterized in that, in order to increase productivity due to the intensification of the polymer blending process, in the zone of alternating tapering and extending towards the outlet of the conical sections of the inner surface of the housing 5 черв ки выполнены двухзаходными с эксцентричными относительно их осей гребн ми витков нарезок с диаметрально противоположными друг другу эксцентриситетами в каждом заходе и концентричными их ос м сердечниками5 worms are double-threaded with crests of cuts of cuts with eccentric about their axes with eccentricities opposite to each other in each approach and concentric axes of their axes i, . м &i,. m & // /2// / 2 /2/ 2 Ри22Pu22 ПP Фиг.33 1313 ФигЛFy
SU884454464A 1988-07-04 1988-07-04 Screw mixer for processing polymers SU1634511A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU884454464A SU1634511A2 (en) 1988-07-04 1988-07-04 Screw mixer for processing polymers

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Application Number Priority Date Filing Date Title
SU884454464A SU1634511A2 (en) 1988-07-04 1988-07-04 Screw mixer for processing polymers

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU1382645A Addition SU301863A1 (en) DEVICE FOR ALLOCATION OF DIGITAL INFORMATION AT PSEUDO-DUDENT SIGNAL MODULATION

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SU1634511A2 true SU1634511A2 (en) 1991-03-15

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0788868A1 (en) * 1996-02-07 1997-08-13 POMINI S.p.A. Process and machine for the mixing with continuous rolling of thermoplastic material
US6022133A (en) * 1996-09-24 2000-02-08 The Dow Chemical Company Multiple-screw extruder
US6062719A (en) * 1996-09-24 2000-05-16 The Dow Chemical Company High efficiency extruder
RU2516399C2 (en) * 2008-06-20 2014-05-20 Байер Матириальсайенс Аг Extrusion of plastics
EP3885102A1 (en) * 2020-03-25 2021-09-29 Wuyi University Counter-rotating differential speed extrusion device, extruder and method for manufacturing materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 1382645, кл. В 29 С 47/40, 1987. *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0788868A1 (en) * 1996-02-07 1997-08-13 POMINI S.p.A. Process and machine for the mixing with continuous rolling of thermoplastic material
US6022133A (en) * 1996-09-24 2000-02-08 The Dow Chemical Company Multiple-screw extruder
US6062719A (en) * 1996-09-24 2000-05-16 The Dow Chemical Company High efficiency extruder
RU2516399C2 (en) * 2008-06-20 2014-05-20 Байер Матириальсайенс Аг Extrusion of plastics
RU2516172C2 (en) * 2008-06-20 2014-05-20 Байер Интеллектуэль Проперти Гмбх Screw elements with improved dispersancy effectiveness and decreased energy supply
RU2516399C9 (en) * 2008-06-20 2015-03-10 Байер Матириальсайенс Аг Extrusion of plastics
US9688002B2 (en) 2008-06-20 2017-06-27 Covestro Deutschland Ag Screw elements with improved dispersing action and low energy input
US10029393B2 (en) 2008-06-20 2018-07-24 Covestro Deutschland Ag Screw elements with improved dispersing action and low energy input
EP3885102A1 (en) * 2020-03-25 2021-09-29 Wuyi University Counter-rotating differential speed extrusion device, extruder and method for manufacturing materials
US11485063B2 (en) 2020-03-25 2022-11-01 Wuyi University Counter-rotating differential speed extrusion device, extruder and method for manufacturing materials

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