CN102225315A - Three-rotor continuous mixing unit with rotors arranged in straight line - Google Patents

Three-rotor continuous mixing unit with rotors arranged in straight line Download PDF

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Publication number
CN102225315A
CN102225315A CN201110154689XA CN201110154689A CN102225315A CN 102225315 A CN102225315 A CN 102225315A CN 201110154689X A CN201110154689X A CN 201110154689XA CN 201110154689 A CN201110154689 A CN 201110154689A CN 102225315 A CN102225315 A CN 102225315A
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CN
China
Prior art keywords
mixing
rotor
rotors
mixing unit
head
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201110154689XA
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Chinese (zh)
Inventor
王克俭
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Beijing University of Chemical Technology
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Beijing University of Chemical Technology
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Filing date
Publication date
Application filed by Beijing University of Chemical Technology filed Critical Beijing University of Chemical Technology
Priority to CN201110154689XA priority Critical patent/CN102225315A/en
Publication of CN102225315A publication Critical patent/CN102225315A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/39Plasticisers, homogenisers or feeders comprising two or more stages a first extruder feeding the melt into an intermediate location of a second extruder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/465Mixing; 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48Mixing; 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
    • B29B7/485Mixing; 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 three or more shafts provided with screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48Mixing; 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
    • B29B7/487Mixing; 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 consecutive casings or screws, e.g. for feeding, discharging, mixing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48Mixing; 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
    • B29B7/488Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B29B7/489Screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/74Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7495Systems, i.e. flow charts or diagrams; Plants for mixing rubber
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/285Feeding the extrusion material to the extruder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/365Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps

Abstract

The invention provides a three-rotor continuous mixing unit with rotors arranged in a straight line. The mixing unit mainly comprises a mixing part and a discharging part and can adopt a single-band or dual-band mode; wherein the mixing part mainly comprises a charging device, a cylinder, three rotors, heating and cooling devices and a transmission device; the center lines of the three rotors are in the same plane and the three rotors are arranged in parallel; the projection lines vertical to the plane are arranged in a straight line; the mixing rotors must be provided with charging segments and mixing segments; the screw conveying structure is adopted to the rotors on the charging segments; efficient cam-shaped, S-shaped or four-wing-shaped mixing rotor structure is adopted to the rotors on the mixing segments; when the mixing unit adopts the single-band mode, the tail ends of the rotors adopt the screw structure and pressure is created to convey the materials to the head; and when the mixing unit adopts the dual-band mode, the mixed materials enter into next band of screw extruder via a valve and pressure is created to convey the materials to the head; the mixing unit in any one of the two modes adopts the head fit for the cavity for pelleting or forming; a melt pump can be connected in front of the head; and the three rotors can rotate at the same speed or different speed and form a plurality of shearing, drawing and kneading zones during rotation, and exchange of materials among the rotors is more frequent, thus effectively improving the plasticating, melting and dispersing properties of equipment, shortening the processing time and improving the yield. The mixing unit can be used in such processes as mixing, pelleting and the like during processing rubbers, coatings, propellants, explosives, paper pulp, plastics, food, medicaments, feeds and the like.

Description

The triple-spool continuous mixing unit that the rotor yi word pattern is arranged
Technical field
The present invention relates to the triple-spool continuous mixing unit that the rotor yi word pattern is arranged, can be used for technical process such as mixing in the processing such as rubber, coating, propellant, explosive, paper pulp, plastics, food, pharmacy, feed and granulation.
Background technology
Mixing is decision high molecular products performance-critical process procedure, and particularly the contour viscous-elastic material of rubber being seemed is even more important.All even the stablizing that material is mixing is the key of guaranteeing the polymer product quality.Realize the evenly mixing technical equipment of mixing main dependence, comprise mill, banbury, two-rotor continuous mixer and screw extruder etc.Industrial, screw extruder is mainly used in the plasticizing processing of plastics and food and thermoplastic elastomer (TPE), and other three kinds then are mainly used in the mixing of component complex materials such as rubber, coating, explosive and propellant.Mill and banbury belong to batch-mixed equipment, and not only efficient is low, and are difficult to reach the different identical mixing quality of material in batches.
Two-rotor continuous mixer combines the mixed characteristic of banbury excellence, also with continuous running, is used widely on industrial mass manufacture.It mainly partly is made up of machine barrel, rotor, device for discharging etc.Mixing chamber on the machine barrel is that two that mutually connect, cross sections are circular hole, and material is subjected to the effect of shearing, pulverizing, kneading and the mixing of rotor in mixing chamber.Non-counter-rotating intermeshing rotor rotated mainly is made up of feeding section, mixing section and discharging section.The rotor feeding section is as the twin-screw of two non-engagements, and under the promotion of rotor feeding section screw thread, the material by charge door adds arrives mixing section.The rotor mixing section surface screw thread that helical angle has nothing in common with each other, stagger arrangement is arranged, material is in this fusion, mixing, plasticizing.Device for discharging can be controlled the open degree of Dump gate, reaches the purpose of control material time of staying in mixing chamber.
Patent 200620154843.8 is developed the parallel three-screw extruder that in-line is arranged on the basis of parallel double-screw extruder, three screw rods are arranged in parallel, and forms two and mediates the district.Relative double screw extruder, three-screw extruder has the positive conveyance characteristic of fricting shearing and two region of engagements, and material and screw rod have bigger contact area.Mixing fully, heat transmitting is good, melt capacity is big, exhaust capacity is good and temperature control is better, and have lower energy consumption.
Similarly, on the basis of birotor mixing roll, three rotors that adopt yi word pattern to arrange form new mixing roll, not only improve output and energy-conservation, and mixed effect also can obviously improve.
Summary of the invention
Be different from traditional double rotor mixing roll, the mixing structure of triple-spool that continuous mixer of the present invention adopts the rotor yi word pattern to arrange is as Fig. 1.The rotor of mixing part has three, and three rotor centerline are in a plane and be arranged in parallel, and in the projection join line section of being in line on vertical this plane, it is arranged in a straight line promptly to be yi word pattern, is equivalent to two pairs of birotors and carries out mixing.Further, be continuous mixing, the mass transport that mixes must be carried out granulation or moulding to head, promptly removing kneading part exceptionally also needs the discharge part.Like this, triple-spool continuous mixing unit partly is made up of mixing part and discharge.The complete unit of Xing Chenging can be a single-order for this reason, also can be two rank.
Single-order triple-spool continuous mixer is exactly that rotor is made up of non-engaging spiro rod feeding section and mixing rotor section and screw rod discharge zone successively; material is added continuously and is mixing and be discharged to head through the transportation section pressure and carry out granulation or moulding, and the head cavity structure depends on the outlet article shape.For improving outlet discharge pressure, also can connect gear pump before the head.
The triple-spool continuous mixing unit such as the Fig. 1 on two rank mainly contain mixing part and discharge and partly form.In first rank non-engaging spiro rod feeding section and mixing rotor section are manufactured an integral body, material is added continuously and is mixing, is discharged to second rank through the adjustable discharge valve of aperture endways.The aperture control discharge rates of valve and the degree of filling on formation second rank, build-up pressure, the mixing intensity of change mixer.Second rank can be screw extruders, adopt to be fit to the screw-rod structure that fused materials adds, and carry out granulation or moulding through screw rod transmission to head, and the head cavity structure depends on the outlet article shape.For improving outlet discharge pressure, also can connect gear pump before the head.
Rotor mixing section of the present invention can adopt multiple efficient mixing rotor structures such as cam-shaped, S shape or tetragonous rotor.In triple-spool mixing roll when operation, add material at charge door,, carries out mixing repeatedly and plasticate to mixing rotor section through helical feed.Because three rotors are arranged, strong drawing zone between rotor and kneading district are multiplied, and therefore can obviously improve melting effect and improve output, have the effect of energy-saving and emission-reduction.
Description of drawings
The triple-spool continuous mixing unit structural representation that Fig. 1 arranges for the rotor yi word pattern
The 1-motor, 2-slows down and distributor box, the 3-machine barrel, the 4-feeding device, the 5-heater, the 6-rotor,
7-rotor cooling device, the 8-motor, the 9-reduction box, the 10-machine barrel, the 11-heater, the 12-screw rod,
The 13-head, the 14-discharge valve, 15-connects cylindrical shell.
Fig. 2 is the arrangement architecture schematic diagram of three rotors
Fig. 3 adopts the sectional schematic diagram of cam face for the rotor mixing section
Fig. 4 adopts the sectional schematic diagram of S shape rotor for the rotor mixing section
Fig. 5 adopts the sectional schematic diagram of tetragonous rotor for the rotor mixing section
Specific embodiments
The implementation case is the triple-spool continuous mixing unit on two rank, and three rotor centerline are in a plane and be arranged in parallel, and is wired to straightway in vertical this plane projection, is yi word pattern and arranges.
The triple-spool continuous mixing unit that the rotor yi word pattern is arranged can be that triple-spool continuous mixer connecting screw rod extruder is formed, and sees Fig. 1.Mixing part mainly comprises: motor 1, slow down and distributor box 2, and machine barrel 3, feeding device 4, heater 5, rotor 6, rotor cooling device 7 is formed.The screw rod extruding part comprises: motor 8, and reduction box 9, machine barrel 10, heater 11, screw rod 12, machine head port mould 13 is formed.Connect by cylindrical shell 15 between mixing part and the screw rod extruding part, wherein be provided with the adjustable discharge valve 14 of aperture.The transmission device of motor 1, deceleration and distributor box 2 component devices.
The operation principle of this continuous mixing unit is: motor 1 drives the rotation of reduction box power shaft, carries out the distribution of moment of torsion and rotating speed in the reduction box 2 and rotates by three rotors 6 of three output shafts drives.Three rotors 6 are regulated internal temperature by terminal cooling system.Rotor has non-meshing spiral transportation section and rotor-type mixing section, and is installed in the machine barrel 3, and machine barrel is regulated external temperature under heater 5 effects.Material adds in the machine barrel 3 through feeding device 4, arrives mixing rotor section through helical feed.The heat that dependence is imported into from machine barrel, the shearing of rotor, stretching and extruding kneading effect, material plastifies and mixes.Mixing sufficient material through discharge valve 14 be connected cylindrical shell 15 and enter the screw rod extruding part, build-up pressure is extruded through head 13 under the helical feed effect, carries out granulation or moulding.For further improving pressure, also can insert Melt Pump before the head.
Three rotor mixing sections are non-engagements, therefore can be with speed or differential, and the direction of rotation of three rotors can be carried out various combination.For this reason, can adopt integrated deceleration and distributor box, also can adopt separate type reduction box and distributor box to realize the rotor motion combination.Mixing rotor section can make full use of various typical mixing rotor structures, as the cam-shaped of Fig. 2, the S shape of Fig. 3 and the tetragonous rotor type of Fig. 4 etc.
Because three rotors are arranged, strong drawing zone between rotor, strong shear zone and strong crush zone are multiplied, the material exchange is more frequent between rotor, make material plasticating in screw rod, homogenizing, the number of times of shearing is multiplied, and has improved the plasticating of equipment, fusion and dispersive property effectively, shorten process time, had the characteristics of energy-saving and emission-reduction.

Claims (2)

1. the triple-spool continuous mixing unit of rotor yi word pattern arrangement mainly partly is made up of mixing part and discharge, can adopt single-order or two rank form; Wherein mixing part mainly is made up of feeding device, machine barrel, rotor, heating-cooling device and transmission device, it is characterized in that: mixing rotor has three, three rotor centerline are in a plane and be arranged in parallel, and are yi word pattern at vertical this plane projection line and arrange.
2. the triple-spool continuous mixing unit that rotor yi word pattern according to claim 1 is arranged, it is characterized in that: have feeding section and mixing section on the mixing rotor, feeding section adopts screw conveying structure, and mixing rotor section adopts efficient mixing rotor structures such as cam-shaped, S shape and tetragonous rotor type.
CN201110154689XA 2011-06-10 2011-06-10 Three-rotor continuous mixing unit with rotors arranged in straight line Pending CN102225315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110154689XA CN102225315A (en) 2011-06-10 2011-06-10 Three-rotor continuous mixing unit with rotors arranged in straight line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110154689XA CN102225315A (en) 2011-06-10 2011-06-10 Three-rotor continuous mixing unit with rotors arranged in straight line

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CN102225315A true CN102225315A (en) 2011-10-26

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106744879A (en) * 2016-12-23 2017-05-31 成都新柯力化工科技有限公司 A kind of application of the method and Graphene that Graphene is peeled off based on draft flowing deformation
CN106903815A (en) * 2017-04-16 2017-06-30 佛山市奔浩塑料机械有限公司 A kind of incorgruous continuous mixing extruder of triple-spool
CN109468689A (en) * 2018-12-06 2019-03-15 长青藤高性能纤维材料有限公司 A kind of ultra high molecular weight polyethylene fiber gel spinning method and the soft kneading machine of double ranks using the soft kneading machine of double ranks
CN110719832A (en) * 2017-06-06 2020-01-21 日本斯频德制造株式会社 Mixing device
WO2023061336A1 (en) * 2021-10-14 2023-04-20 无锡市博宇塑机有限公司 Internal mixing extruder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101875233A (en) * 2009-12-10 2010-11-03 北京化工大学 Straight conical three-screw extruder
CN102166794A (en) * 2011-01-25 2011-08-31 青岛科技大学 Rubber continuous mixing dual-rotor structure and mixing equipment adopting same
CN202212119U (en) * 2011-06-10 2012-05-09 北京化工大学 Tri-rotor continuous mixing unit with linearly arranged rotors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101875233A (en) * 2009-12-10 2010-11-03 北京化工大学 Straight conical three-screw extruder
CN102166794A (en) * 2011-01-25 2011-08-31 青岛科技大学 Rubber continuous mixing dual-rotor structure and mixing equipment adopting same
CN202212119U (en) * 2011-06-10 2012-05-09 北京化工大学 Tri-rotor continuous mixing unit with linearly arranged rotors

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106744879A (en) * 2016-12-23 2017-05-31 成都新柯力化工科技有限公司 A kind of application of the method and Graphene that Graphene is peeled off based on draft flowing deformation
CN106744879B (en) * 2016-12-23 2021-03-02 成都新柯力化工科技有限公司 Method for stripping graphene based on extensional rheology and application of graphene
CN106903815A (en) * 2017-04-16 2017-06-30 佛山市奔浩塑料机械有限公司 A kind of incorgruous continuous mixing extruder of triple-spool
CN110719832A (en) * 2017-06-06 2020-01-21 日本斯频德制造株式会社 Mixing device
CN109468689A (en) * 2018-12-06 2019-03-15 长青藤高性能纤维材料有限公司 A kind of ultra high molecular weight polyethylene fiber gel spinning method and the soft kneading machine of double ranks using the soft kneading machine of double ranks
WO2023061336A1 (en) * 2021-10-14 2023-04-20 无锡市博宇塑机有限公司 Internal mixing extruder

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Application publication date: 20111026