CN202212119U - Tri-rotor continuous mixing unit with linearly arranged rotors - Google Patents

Tri-rotor continuous mixing unit with linearly arranged rotors Download PDF

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Publication number
CN202212119U
CN202212119U CN2011201939682U CN201120193968U CN202212119U CN 202212119 U CN202212119 U CN 202212119U CN 2011201939682 U CN2011201939682 U CN 2011201939682U CN 201120193968 U CN201120193968 U CN 201120193968U CN 202212119 U CN202212119 U CN 202212119U
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CN
China
Prior art keywords
mixing
rotor
rotors
head
section
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Expired - Fee Related
Application number
CN2011201939682U
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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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Priority to CN2011201939682U priority Critical patent/CN202212119U/en
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Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/39—Plasticisers, homogenisers or feeders comprising two or more stages a first extruder feeding the melt into an intermediate location of a second extruder
    • 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
    • B29B7/485—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 three or more shafts provided with screws
    • 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
    • B29B7/487—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 consecutive casings or screws, e.g. for feeding, discharging, mixing
    • 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
    • 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
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
    • 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
    • B29C48/285—Feeding the extrusion material to the extruder
    • 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
    • B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps

Abstract

The utility model relates to a tri-rotor continuous mixing unit with linearly arranged rotors, which mainly comprises a mixing portion and a discharging portion and can adopt a single-stage or double-stage form. The mixing portion mainly comprises a feeding device, a barrel, the rotors, a heating and cooling device and a transmission. The central lines of the three rotors for mixing are positioned in the same plane and parallelly arranged, and connecting lines of projections, which are perpendicular to the plane, of the rotors are linearly arranged. Each mixing rotor is provided with a feeding section and a mixing section, wherein each feeding section is a spiral conveying structure, and the mixing sections of the rotors are high-efficiency mixing rotor structures in a cam shape, an S shape, a four-edge rotor shape and the like. When the single-stage form is adopted, pressure is generated at the tail ends of the rotors by the aid of the spiral structures to convey materials to a head. When the double-stage form is adopted, mixing materials enter a screw extruder at a next stage through a valve to generate pressure for conveying materials to the head. The head with a proper cavity is adopted to realize granulating or forming in both of the forms, and a melt pump can be connected into the front of the head to further increase the pressure. The speeds of the three rotors can be the same or different, a plurality of shearing, stretching and kneading areas are formed when the rotors run, the materials among the rotors are exchanged more frequently, plasticizing, melting and dispersing performances of equipment are improved effectively, processing time is shortened, and yield is improved. The mixing unit can be used for technological processes of mixing, granulating and the like for processing rubber, coating, propellant, explosive, paper pulp, plastics, food, medicines, fodder 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 the technical process such as mixing and granulation in the processing such as rubber, coating, propellant, explosive, paper pulp, plastics, food, pharmacy, feed.
Background technology
Mixing is decision high molecular products performance-critical process procedure, and particularly high viscous-elastic materials such as 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.In the industry, 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 has combined the excellent mixed characteristic of banbury, also with continuous running, on industrial mass manufacture, is used widely.It mainly partly is made up of machine barrel, rotor, device for discharging etc.Mixing chamber on the machine barrel is that two that each other connect, cross sections are circular hole, and material receives 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 like Fig. 1.Wherein mixing part mainly is made up of feeding device, machine barrel, rotor, heating-cooling device and transmission device.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.Have feeding section and mixing section on the mixing rotor, feeding section adopts screw conveying structure.Further, be continuous mixing, must the mass transport that mix 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 that for this reason forms can be a single-order, 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 added continuously with mixing and through the transportation section pressure is discharged to head and carries out granulation or moulding, the head cavity structure depends on the outlet article shape.Be to improve outlet discharge pressure, but connection gear pump also 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 and the degree of filling that forms second rank of valve, 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.Be to improve outlet discharge pressure, but connection gear pump also 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, the strong drawing zone between rotor is multiplied with mediating to distinguish, and therefore can obviously improve melting effect and improve output, has 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 sketch map 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
The specific embodiment
This case study on implementation 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 through 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 through three rotors 6 of three output shafts drives.Three rotors 6 lean on terminal cooling system to regulate internal temperature.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 get into the screw rod extruding parts, 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, like 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, the strong drawing zone between rotor, strong shear zone and strong crush zone are multiplied, and 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 cam-shaped, S shape and the efficient mixing rotor structure of tetragonous rotor type.
CN2011201939682U 2011-06-10 2011-06-10 Tri-rotor continuous mixing unit with linearly arranged rotors Expired - Fee Related CN202212119U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201939682U CN202212119U (en) 2011-06-10 2011-06-10 Tri-rotor continuous mixing unit with linearly arranged rotors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201939682U CN202212119U (en) 2011-06-10 2011-06-10 Tri-rotor continuous mixing unit with linearly arranged rotors

Publications (1)

Publication Number Publication Date
CN202212119U true CN202212119U (en) 2012-05-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201939682U Expired - Fee Related CN202212119U (en) 2011-06-10 2011-06-10 Tri-rotor continuous mixing unit with linearly arranged rotors

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102225315A (en) * 2011-06-10 2011-10-26 北京化工大学 Three-rotor continuous mixing unit with rotors arranged in straight line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102225315A (en) * 2011-06-10 2011-10-26 北京化工大学 Three-rotor continuous mixing unit with rotors arranged in straight line

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120509

Termination date: 20130610