CN107160582B - Multi-group controlled granulator set for natural fiber-based high polymer composite material - Google Patents
Multi-group controlled granulator set for natural fiber-based high polymer composite material Download PDFInfo
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- CN107160582B CN107160582B CN201710579882.5A CN201710579882A CN107160582B CN 107160582 B CN107160582 B CN 107160582B CN 201710579882 A CN201710579882 A CN 201710579882A CN 107160582 B CN107160582 B CN 107160582B
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- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 239000000835 fiber Substances 0.000 title claims abstract description 25
- 229920000642 polymer Polymers 0.000 title claims abstract description 21
- 238000001125 extrusion Methods 0.000 claims abstract description 62
- 239000002994 raw material Substances 0.000 claims abstract description 60
- 238000002156 mixing Methods 0.000 claims abstract description 55
- 239000007789 gas Substances 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 239000011261 inert gas Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 23
- 239000000463 material Substances 0.000 abstract description 23
- 239000002245 particle Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000013329 compounding Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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
-
- 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
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- 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
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
- B29C48/143—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration at a location before or in the feed unit, e.g. influencing the material in the hopper
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a multi-component controlled granulator set for a natural fiber-based high polymer composite material, and belongs to the technical field of machinery. The method solves the problem of how to improve the production efficiency of the composite material particles and the production quality. The granulator set comprises a frame, an internal mixer and an extrusion granulator, wherein the internal mixer is positioned above the extrusion granulator, the internal mixer and the extrusion granulator are both arranged transversely and positioned on the same vertical plane, a raw material feeding port and a raw material discharging port are formed in the internal mixer, a mixing material feeding port is formed in the extrusion granulator, the raw material discharging port is positioned right above the mixing material feeding port, a protection channel is connected between the raw material discharging port and the mixing material feeding port in a sealing way, a gas protection cavity communicated with the raw material discharging port and the mixing material feeding port is formed in the protection channel, and an air inlet communicated with the gas protection cavity and used for introducing inert gas is formed in the protection channel. The machine set has the advantages of compact structure, small occupied space, high production efficiency and high production quality.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to a multi-component controlled granulator set for a natural fiber-based high polymer composite material.
Background
The natural fiber-based high molecular polymer composite is a plastic material having flexibility, in which natural fiber refers to a mixture of lignin, cellulose and hemicellulose widely existing in various fabrics in nature. When the natural fiber is present in a larger amount, it is referred to as a matrix. Meanwhile, the composite material is formed by adding a mixture of a plurality of components with high modulus, corrosion resistance and other specific properties into the natural fiber base.
In order to manufacture the material particles for producing the composite material, a banburying, extruding and granulating manufacturing process is generally adopted. The traditional banburying, extruding and granulating of materials are respectively carried out by adopting independent equipment, firstly, banburying the materials in an internal mixer, then storing the banburying materials in a storage chamber, then adopting an extruding device to extrude and shape the banburying materials, and finally adopting a granulating device to granulate the extrusion-molded materials, thereby obtaining the materials with required granularity. In the prior art, the plastic granulation manufacturing process is complex, the working efficiency is low, and a large amount of manpower, material resources and space are wasted.
To solve the above problems, for example, chinese patent [ application No. 201010125438.4; the utility model discloses a collect banburying, feed, extrusion function as an organic whole's combination formula unit, including the frame, the frame divide into two-layer, and the top layer of frame is provided with the banbury mixer, and its characterized in that the bottom of frame is equipped with single screw extruder and toper twin-screw feeder, the feed inlet has been seted up to the top of toper twin-screw feeder barrel, installs the feed hopper in feed inlet department, the export of banbury mixer discharge apparatus is located the top of feed hopper, can unload to the feed hopper, the twin-screw of toper twin-screw feeder is connected with the feed inlet of single screw extruder barrel one side. The working time is saved through the unit, the working efficiency is improved, and the enterprise cost is saved.
However, the above combined unit integrating the functions of banburying, feeding and extruding has the following defects: the raw materials are banburying by an internal mixer and then leaked into a feeding hopper by a discharging device of the internal mixer, and in the process, the raw materials subjected to the banburying are easily oxidized due to the fact that the discharging opening and the feeding hopper are both open guides, so that the production quality of material particles after the subsequent extrusion granulation is affected; in addition, a large amount of toxic gas and partial smoke can be released in the unloading process, so that the operation environment is bad; meanwhile, the whole structure of the combined type unit is not compact enough, the occupied space is large, the material conveying time is long, and the improvement of the production efficiency is not facilitated.
Disclosure of Invention
The invention aims at solving the problems in the prior art, and provides a multi-group controlled granulator set for natural fiber-based high polymer composite materials.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a natural fiber base polymer composite's multiunit portion accuse granulator set, includes the frame, fixes the banbury mixer in the frame and fix the extrusion granulator in the frame, the banbury mixer is located the top of extrusion granulator, its characterized in that, banbury mixer and extrusion granulator are all along transverse arrangement and lie in same vertical plane, have raw materials feed inlet and raw materials discharge gate on the banbury mixer, extrusion granulator is last to have the compounding feed inlet, the raw materials discharge gate is located the compounding feed inlet directly over, sealing connection has the protection passageway between raw materials discharge gate and the compounding feed inlet, have the gas protection chamber of intercommunication raw materials discharge gate and compounding feed inlet in the protection passageway, still have on the protection passageway with gas protection chamber communicate and be used for inert gas to let in the air inlet.
The design principle of the multi-group controlled granulator set of the natural fiber-based high polymer composite material is that an internal mixer and an extrusion granulator are integrated and reasonably arranged, so that the internal mixer and the extrusion granulator are transversely arranged and positioned on the same vertical plane, a raw material discharge port of the internal mixer is positioned right above a material mixing feed port of the extrusion granulator, and then the raw material discharge port and the material mixing feed port are connected through a designed protection channel; meanwhile, an air inlet and a gas protection cavity are designed on the protection channel, and inert gas is introduced into the air inlet to fill the gas protection cavity, so that banburying raw materials from a raw material discharge port of the internal mixer can be protected from contact with oxygen by the inert gas, oxidation is avoided, and the production quality of composite material particles produced subsequently is improved; therefore, through the integrated design, the unit structure is more compact, and the production efficiency and the production quality of the composite material particles can be improved; in addition, in the production process of the internal mixer, the raw material components, the feeding amount and the feeding time which are fed into the raw material feed inlet of the internal mixer can be accurately controlled, and the production efficiency and the production quality are improved.
In the multi-group controlled granulator set of the natural fiber-based high polymer composite material, an internal mixing cavity is formed in the internal mixer, two parallel internal mixing screws are arranged in the internal mixing cavity and are divided into a threaded feeding section and an extrusion mixing section, a raw material feeding port is communicated with the internal mixing cavity and is located above the threaded feeding section, and a raw material discharging port is communicated with the internal mixing cavity and is located below the extrusion mixing section. Through the design of the banburying screw and the raw material feeding port and the raw material discharging port, when raw materials enter the banburying cavity from the raw material feeding port, the raw materials are firstly pushed to the extrusion mixing section through the thread feeding section, then the extrusion mixing section is used for mixing and banburying, and the raw materials leak out of the raw material discharging port below after banburying, through the design, the two working procedures of feeding and mixing of the raw materials in the internal mixer are separately and continuously carried out, that is, a little of raw materials are fed and mixed, so that the mixing amount in unit time is not very large, the raw materials can be mixed more uniformly, and the production quality of subsequent composite material particles is improved; meanwhile, the banburying time can be saved, and the banburying efficiency is improved.
In the multi-component controlled granulator set for the natural fiber-based high polymer composite material, the extrusion mixing section is respectively provided with a convex rib extrusion part which protrudes outwards and is in a V shape and a concave extrusion part which is pinched inwards and has a V-shaped section. When two banburying screws rotate, through the shape design of above bead extrusion portion and indent extrusion portion, can make the screw rod wrap the raw materials better and mix the banburying to the raw materials for the mixing of raw materials can be more even, thereby be favorable to improving the production quality of follow-up combined material granule.
In the multi-component controlled granulator set of the natural fiber-based high polymer composite material, the rib extrusion part comprises a rib part I and a rib part II which are both outwards protruded and obliquely arranged, and the rib part I and the rib part II are two-phase and are provided with extrusion surfaces which are inwards concave. Through the cooperation design of above bead and bead two and extrusion face for the raw materials during banburying can be by the pocket between two screw rods and rotate along with the screw rod and carry out mixed banburying, make the mixing of raw materials can be more even like this, thereby be favorable to improving the production quality of follow-up combined material granule.
In the multi-component control granulator set for the natural fiber-based high polymer composite material, the included angle between the first rib part and the second rib part is an obtuse angle. Through the design, the screw rod can be used for holding more raw materials, and the banburying quality and efficiency of the raw materials are improved.
In the multi-component controlled granulator set of the natural fiber-based high polymer composite material, the thread feeding section is provided with a plurality of circles of external thread teeth, and the thread pitch between the external thread teeth close to the extrusion mixing section is smaller than the thread pitch between the external thread teeth far away from the extrusion mixing section. Through the design to screw pitch on the screw thread pay-off section, the one end screw pitch that is close to the extrusion compounding section is diminish relatively, and the push stroke of raw materials also diminishes, that is to say, is close to extrusion compounding section pushing speed more slowly, in so that the raw materials can be pushed to the extrusion compounding section slowly, the raw materials in the extrusion compounding section can obtain abundant banburying and mix by design like this for the raw materials is mixed more evenly and mixing efficiency is higher, thereby is favorable to improving subsequent combined material granule's production quality and production efficiency.
In the multi-component controlled granulator set for the natural fiber-based high polymer composite material, the inert gas introduced into the air inlet is carbon dioxide, argon or nitrogen. The above inert gas is preferably carbon dioxide gas.
Compared with the prior art, the multi-component controlled granulator set for the natural fiber-based high polymer composite material has the following advantages: the machine set has the advantages of compact structure, small occupied space, high production efficiency and high production quality; meanwhile, the components of the production raw materials, the feeding amount and the feeding time in the unit can be accurately controlled, the operation is convenient, and the degree of automation is high.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the multi-component control granulator set.
Fig. 2 is a schematic structural diagram of an internal mixer in the multi-component controlled granulator set.
FIG. 3 is a schematic view of the structure of a banburying screw in the internal mixer.
In the figure, 1, a rack; 2. an internal mixer; 3. extruding a granulator; 4. a raw material feed port; 5. a raw material discharge port; 6. a material mixing and feeding port; 7. protecting the channel; 8. a gas protection chamber; 9. an air inlet; 10. a banburying cavity; 11. banburying a screw; 12. a thread feeding section; 13. extruding a mixing section; 131. a rib pressing part; 131a, first rib; 131b, second rib; 131c, an extrusion surface; 14. a concave extrusion part; 15. and an external thread tooth.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Specifically, as shown in fig. 1, the multi-component controlled granulator set of the natural fiber-based high polymer composite material comprises a frame 1, an internal mixer 2 fixed on the frame 1 and an extrusion granulator 3 fixed on the frame 1, wherein the internal mixer 2 is positioned above the extrusion granulator 3. The internal mixer 2 and the extrusion granulator 3 are both arranged in the transverse direction and lie on the same vertical plane. The internal mixer 2 is provided with a raw material feed inlet 4 and a raw material discharge outlet 5, the extrusion granulator 3 is provided with a mixing feed inlet 6, and the raw material discharge outlet 5 is positioned right above the mixing feed inlet 6. A protection channel 7 is connected between the raw material discharging hole 5 and the material mixing feeding hole 6 in a sealing way, and a gas protection cavity 8 communicated with the raw material discharging hole 5 and the material mixing feeding hole 6 is arranged in the protection channel 7. The protection channel 7 is also provided with a gas inlet 9 which is communicated with the gas protection cavity 8 and is used for leading in inert gas. The inert gas introduced into the gas inlet 9 is carbon dioxide, argon or nitrogen.
As shown in fig. 2, the internal mixer 2 is provided with an internal mixing cavity 10, and two internal mixing screws 11 which are arranged in parallel are arranged in the internal mixing cavity 10. The banburying screw 11 is divided into a threaded feeding section 12 and an extrusion mixing section 13, the raw material feeding port 4 is communicated with the banburying cavity 10 and is positioned above the threaded feeding section 12, and the raw material discharging port 5 is communicated with the banburying cavity 10 and is positioned below the extrusion mixing section 13.
More specifically, as shown in fig. 3, the screw feeding section 12 has a plurality of turns of external screw threads 15, and the screw pitch between the external screw threads 15 near the extrusion section 13 is smaller than the screw pitch between the external screw threads 15 far from the extrusion section 13. The extrusion mixing section 13 is respectively provided with a convex rib extrusion part 131 which protrudes outwards and is in a V shape and a concave extrusion part 14 which is pinched inwards and has a V-shaped section. The rib pressing portion 131 includes a first rib portion 131a and a second rib portion 131b which are both protruded outwardly and are obliquely arranged, and an included angle between the first rib portion 131a and the second rib portion 131b is an obtuse angle. The first rib 131a and the second rib 131b are connected and have an inwardly concave pressing surface 131c therebetween.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as the frame 1, the internal mixer 2, the extrusion granulator 3, the raw material feed port 4, the raw material discharge port 5, the mix feed port 6, the protection passage 7, the gas protection chamber 8, the gas inlet 9, the internal mixing chamber 10, the internal mixing screw 11, the screw feed section 12, the extrusion mixing section 13, the rib extrusion section 131, the rib section one 131a, the rib section two 131b, the extrusion face 131c, the concave extrusion section 14, the external screw thread 15 are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (7)
1. The multi-group controlled granulator set for the natural fiber-based high polymer composite material comprises a frame (1), an internal mixer (2) fixed on the frame (1) and an extrusion granulator (3) fixed on the frame (1), wherein the internal mixer (2) is positioned above the extrusion granulator (3), and is characterized in that the internal mixer (2) and the extrusion granulator (3) are both arranged transversely and positioned on the same vertical plane, the internal mixer (2) is provided with a raw material feed port (4) and a raw material discharge port (5), the extrusion granulator (3) is provided with a mixing feed port (6), the raw material discharge port (5) is positioned right above the mixing feed port (6), a protection channel (7) is connected between the raw material discharge port (5) and the mixing feed port (6) in a sealing manner, a gas protection cavity (8) communicated with the raw material discharge port (5) and the mixing feed port (6) is arranged in the protection channel (7), the gas protection cavity (8) is a vertical hollow cavity, the upper end of the gas protection cavity (8) is directly communicated with the mixing feed port (6), the protection channel (7) is also provided with an air inlet (9) which is communicated with the air protection cavity (8) and is used for introducing inert gas.
2. The multi-component controlled granulator set of the natural fiber-based high polymer composite material according to claim 1, wherein an internal mixing cavity (10) is arranged in the internal mixer (2), two internal mixing screws (11) which are arranged in parallel are arranged in the internal mixing cavity (10), the internal mixing screws (11) are divided into a threaded feeding section (12) and an extrusion mixing section (13), the raw material feeding port (4) is communicated with the internal mixing cavity (10) and is positioned above the threaded feeding section (12), and the raw material discharging port (5) is communicated with the internal mixing cavity (10) and is positioned below the extrusion mixing section (13).
3. The multi-component controlled granulator set for natural fiber-based high molecular polymer composite materials according to claim 2, wherein the extrusion mixing section (13) is respectively provided with an outwards convex V-shaped convex rib extrusion part (131) and an inwards concave extrusion part (14) which is pinched inwards and has a V-shaped cross section.
4. A multi-component controlled granulator set according to claim 3, wherein the rib extrusion part (131) comprises a first rib part (131 a) and a second rib part (131 b) which are both protruded outwards and obliquely arranged, and the first rib part (131 a) and the second rib part (131 b) are connected and are provided with an inwards concave extrusion surface (131 c) therebetween.
5. The multi-pack pelleting machine set for natural fiber based polymer composite according to claim 4, wherein an included angle between the first rib part (131 a) and the second rib part (131 b) is an obtuse angle.
6. The multi-component controlled granulator set of natural fiber-based high molecular polymer composite material according to claim 2, wherein the thread feeding section (12) is provided with a plurality of circles of external thread teeth (15), and the thread pitch between the external thread teeth (15) close to the extrusion mixing section (13) is smaller than the thread pitch between the external thread teeth (15) far away from the extrusion mixing section (13).
7. The multi-component controlled granulator set for natural fiber-based high polymer composite materials according to any one of claims 1 to 6, wherein the inert gas introduced into the gas inlet (9) is carbon dioxide, argon or nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710579882.5A CN107160582B (en) | 2017-07-17 | 2017-07-17 | Multi-group controlled granulator set for natural fiber-based high polymer composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710579882.5A CN107160582B (en) | 2017-07-17 | 2017-07-17 | Multi-group controlled granulator set for natural fiber-based high polymer composite material |
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| CN107160582A CN107160582A (en) | 2017-09-15 |
| CN107160582B true CN107160582B (en) | 2023-11-24 |
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| CN110919894A (en) * | 2019-11-07 | 2020-03-27 | 湖南工业大学 | High-filled vegetable fiber/polylactic acid composite board extrusion molding device |
| CN216329315U (en) * | 2021-10-14 | 2022-04-19 | 无锡市博宇塑机有限公司 | Banburying extruder |
| CN120347907A (en) * | 2025-06-23 | 2025-07-22 | 新纤应用材料(江苏)有限公司 | Continuous granulating method for PBT production |
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| US6936200B2 (en) * | 2001-05-04 | 2005-08-30 | Chul Park | Plastic wood fiber foam structure and method of producing same |
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2017
- 2017-07-17 CN CN201710579882.5A patent/CN107160582B/en active Active
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| CN107160582A (en) | 2017-09-15 |
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