CN202155160U - Conical dual-rotor continuous mixing unit - Google Patents
Conical dual-rotor continuous mixing unit Download PDFInfo
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- CN202155160U CN202155160U CN2011201956654U CN201120195665U CN202155160U CN 202155160 U CN202155160 U CN 202155160U CN 2011201956654 U CN2011201956654 U CN 2011201956654U CN 201120195665 U CN201120195665 U CN 201120195665U CN 202155160 U CN202155160 U CN 202155160U
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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
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- 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
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- 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
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- 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
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- 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
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- 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
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/582—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
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- 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
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
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- 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
- B29B7/7485—Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components
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- 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
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- 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
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/826—Apparatus therefor
-
- 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 conical dual-rotor continuous mixing unit, 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 machine barrel, conical rotors, a heating and cooling device and a transmission device, and the central lines of the two conical rotors for mixing form a certain angle when the conical rotors are mounted. The peripheral contour of each mixing rotor is decreased from large to small to be conical, and each mixing rotor is provided with a feeding section and a mixing section, wherein the feeding section is in a spiral conveying structure. From a conical surface perpendicular to the peripheral contour of each rotor, the structure of the mixing section of the rotor is typically in a cam shape, an S shape, a four-edge rotor shape or the like. When the single-stage form is adopted, the tail ends of the rotors generate pressure 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 the materials to the head. Both the forms adopt the head suitable for a cavity to realize granulating or forming, and a melt pump can be connected in front of the head to further increase the pressure. The speeds of the two rotors can be the same or different, a plurality of shearing, stretching and kneading areas are formed when the rotors run, the materials between the rotors are exchanged more frequently, plasticizing, melting and dispersing performances of equipment are improved effectively, processing time is shortened, and yield is increased. The mixing unit can be used for the technological processes of mixing, granulating and the like in processing of rubber, coating, propellant, explosive, paper pulp, plastic, food, pharmacy, fodder and the like.
Description
Technical field
The present invention relates to taper two-rotor continuous mixer group, 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.
If use for reference the characteristics of conical double screw extruder, the constant rotor of external diameter in the common two-rotor continuous mixer is changed over the little pyramidal structure of the big point diameter of tail diameter, machine barrel also adopts the pyramidal structure that adapts, and then can form new continuous mixer.The rotor tail diameter increases, and has increased the bearing capacity of screw rod, and feeding quantity increases, and improves output; The feeding section volume is big, is prone to add the bulk density powder of larger volume; The discharge zone root diameter is little, and the shearing of generation and frictional heat are also less, and is mixing applicable to some special materials like this.
Summary of the invention
Be different from traditional double rotor mixing roll, continuous mixer of the present invention adopts two cone rotors to arrange at an angle, forms the mixing structure of taper birotor, like Fig. 1.Taper two-rotor continuous mixer group 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, cone rotor, heating-cooling device and transmission device.Each mixing rotor diameter profile is tapered by reducing greatly, has feeding section and mixing section, and feeding section adopts screw conveying structure; From seeing perpendicular to the rotor outline conical surface, the mixing section structure presents the rotor characteristics of cam-shaped, S shape or tetragonous rotor type.
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, taper two-rotor continuous mixer group 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 taper two-rotor 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 taper two-rotor continuous mixer group 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.
During the operation of taper birotor mixing roll, add material at charge door, to mixing rotor section, making full use of effectively, rotor structure carries out mixing repeatedly and plasticates through helical feed.Rotor mixing section of the present invention is taper, and is big near the feeding section diameter, little near the discharge zone diameter.Correspondingly; The machine barrel that comprises rotor also be by three cones be combined to form except that conventional rotors the variation of circumferential and axial structural cycle property; The cone rotor diameter will produce axial compression kneading effect and strengthen axial conveying effect from large to small, promote mixed material to move downstream.Therefore can obviously improve melting effect and improve output, have the effect of energy-saving and emission-reduction.
Simultaneously, the cone rotor tail diameter increases, and feeding quantity increases, and has also improved output; Increased the rotor bearing capacity, gear and bearing long service life help arranging thrust bearing and gear; Big near the feeding section volume, the easy bulk density powder that adds larger volume also helps the heat conduction, more is prone to realization to material heating or cooling; Volume near discharge zone is little, and peripheral speed is less, and the shearing of generation is lower, and frictional heat is also less, fire damage dangerous little; Along with rotor diameter reduces gradually, material obtains compression gradually, thereby makes screw channel be full of material sooner, guarantees that material is gently mixing continuously; Under same production capacity, back pressure can be lower.Like this, such mixing roll also can be used for temperature-sensitive materials such as powder and PVC.
Description of drawings
Fig. 1 is a taper two-rotor continuous mixer group structural representation
The 1-motor, 2-slows down and distributor box, the 3-machine barrel, the 4-feeding device, the 5-heater, the 6-cone 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 two-spool arrangement architecture sketch map of taper
The specific embodiment
This case study on implementation is the taper two-rotor continuous mixer group on two rank.
Taper two-rotor continuous mixer group can be that taper two-rotor 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, cone 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.
Mixing part is with two cone rotors, angled arrangement during installation.Each mixing rotor diameter profile is tapered by reducing greatly, has feeding section and mixing section, and feeding section adopts screw conveying structure; From seeing perpendicular to the rotor outline conical surface, the mixing section structure presents rotor characteristics such as cam-shaped, S shape or tetragonous rotor type.
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 in machine barrel through two cone rotors 6 of two output shafts drives.Two cone 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, can insert Melt Pump before the head.
Two rotor mixing sections are non-engagements, therefore can be with speed or differential, and the direction of rotation of two 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, need consider that simultaneously the cone rotor axis is the requirement that cone angle is arranged.The rotor mixing 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.
Owing to there is rotor to adopt cone rotor; Compound axial compression kneading effect on traditional mixing roll has more effectively improved the plasticating of equipment, fusion and dispersive property, has shortened process time; Characteristics with energy-saving and emission-reduction also can be used for the mixing of temperature-sensitive materials such as powder and PVC.
Claims (2)
1. taper two-rotor continuous mixer group 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, cone rotor, heating-cooling device and transmission device, it is characterized in that: two rotors of mixing usefulness are tapers, arrange at an angle.
2. taper two-rotor continuous mixer group according to claim 1 is characterized in that: each mixing rotor diameter profile is tapered by reducing greatly, has feeding section and mixing section, and feeding section adopts screw conveying structure; From seeing perpendicular to the rotor outline conical surface, the mixing section structure presents the rotor characteristics of cam-shaped, S shape or tetragonous rotor type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201956654U CN202155160U (en) | 2011-06-10 | 2011-06-10 | Conical dual-rotor continuous mixing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201956654U CN202155160U (en) | 2011-06-10 | 2011-06-10 | Conical dual-rotor continuous mixing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202155160U true CN202155160U (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201956654U Expired - Fee Related CN202155160U (en) | 2011-06-10 | 2011-06-10 | Conical dual-rotor continuous mixing unit |
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| Country | Link |
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| CN (1) | CN202155160U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225317A (en) * | 2011-06-10 | 2011-10-26 | 北京化工大学 | Double-conical-rotor continuous mixing unit |
| WO2023061337A1 (en) * | 2021-10-14 | 2023-04-20 | 无锡市博宇塑机有限公司 | Pvc floor, and production line and preparation method therefor |
| WO2023061336A1 (en) * | 2021-10-14 | 2023-04-20 | 无锡市博宇塑机有限公司 | Internal mixing extruder |
| WO2023061335A1 (en) * | 2021-10-14 | 2023-04-20 | 无锡市博宇塑机有限公司 | Pvc floor production line |
-
2011
- 2011-06-10 CN CN2011201956654U patent/CN202155160U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225317A (en) * | 2011-06-10 | 2011-10-26 | 北京化工大学 | Double-conical-rotor continuous mixing unit |
| WO2023061337A1 (en) * | 2021-10-14 | 2023-04-20 | 无锡市博宇塑机有限公司 | Pvc floor, and production line and preparation method therefor |
| WO2023061336A1 (en) * | 2021-10-14 | 2023-04-20 | 无锡市博宇塑机有限公司 | Internal mixing extruder |
| WO2023061335A1 (en) * | 2021-10-14 | 2023-04-20 | 无锡市博宇塑机有限公司 | Pvc floor production line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120307 Termination date: 20130610 |