CN219667107U - Equipment for manufacturing levorotatory polylactic acid microspheres - Google Patents
Equipment for manufacturing levorotatory polylactic acid microspheres Download PDFInfo
- Publication number
- CN219667107U CN219667107U CN202320991776.9U CN202320991776U CN219667107U CN 219667107 U CN219667107 U CN 219667107U CN 202320991776 U CN202320991776 U CN 202320991776U CN 219667107 U CN219667107 U CN 219667107U
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- CN
- China
- Prior art keywords
- polylactic acid
- manufacturing
- equipment
- heating
- stirring
- Prior art date
- 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.)
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- 229920000747 poly(lactic acid) Polymers 0.000 title claims abstract description 37
- 239000004626 polylactic acid Substances 0.000 title claims abstract description 37
- 239000004005 microsphere Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000007791 dehumidification Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000000077 insect repellent Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 14
- 239000000126 substance Substances 0.000 abstract description 4
- 239000003995 emulsifying agent Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The utility model discloses equipment for manufacturing a left-handed polylactic acid microsphere, which comprises a base, wherein a stirring tank is arranged at the center of the top of the base, a top cover is arranged at the top of the stirring tank in a lifting manner, an inner container is clamped in the stirring tank, a stirring mechanism is arranged on the top cover and comprises a stirring motor and a stirring rod, an air outlet pipe is arranged on one side of the top cover, which is positioned on the stirring motor, a heating mechanism is arranged at the bottom of the stirring tank and comprises a heating table and a heating resistance wire, the heating table is positioned at the inner bottom of the stirring tank, and the heating resistance wire is arranged on the heating table. The device has simple structure and convenient use, can remove redundant moisture and volatile substances in the raw materials, is convenient for the manufacture of PLA microspheres, and ensures the quality and stability of the PLA microspheres.
Description
Technical Field
The utility model relates to the technical field of manufacturing equipment of levorotatory polylactic acid microspheres, in particular to the manufacturing equipment of the levorotatory polylactic acid microspheres.
Background
The L-polylactic acid (PLLA) has the characteristics of no toxicity, no irritation, biodegradability and absorption, high strength, good plasticity and easy processing and forming. The degradation period is 2-12 months. Is an important biodegradable polymer material, and the degradation period can be changed according to the difference of adding modifier. The PLLA is subjected to enzymatic decomposition in an organism to finally form carbon dioxide and water, and has good biocompatibility.
In the PLLA manufacturing process, the melted PLA raw material and the emulsifier are mixed, so that the droplets are gradually increased, and finally PLA microspheres are formed, and in the prior art, the following chinese patent application numbers are searched: CN202220295509.3 discloses equipment for manufacturing levorotatory polylactic acid microspheres, and in particular relates to the technical field of equipment for manufacturing, and the device comprises a box body, the box body outer surface is provided with a plurality of bracing pieces, and is a plurality of bracing piece cross section shape all sets up to the L shape, the bracing piece top is provided with the backup pad, the box top is provided with two and drops into the bucket, two it uses box top central line symmetric distribution to drop into the bucket, two it all runs through the box and extends to the box inside to drop into the bucket bottom, the box top is provided with preparation facilities. According to the utility model, through the arrangement of the motor, the first shaft lever, the first stirring rod, the first through hole, the connecting block, the second stirring rod, the balancing weight, the motor, the second shaft lever, the stirring disc, the third stirring rod and the second through hole in the preparation mechanism, the efficiency of the device for manufacturing the L-polylactic acid microsphere is improved, and the phenomenon of uneven stirring is not easy to occur, so that the practicability of manufacturing equipment is improved.
The above technical solution has a drawback that when the PLA raw material and the emulsifier are mixed, since a certain amount of monomers and other impurities such as catalyst, solvent, and small molecular compounds generated in the reaction remain in the PLA raw material, the residual monomers and impurities have a low molecular weight and high volatility, and need to be removed before preparation, so as to ensure the quality and stability of the PLA microsphere preparation.
Disclosure of Invention
The utility model aims to provide equipment for manufacturing the L-polylactic acid microsphere, which has the advantages of simple structure and convenience in use, can be used for conveniently manufacturing the PLA microsphere by redundant moisture and volatile substances in raw materials, and ensures the quality and stability of the PLA microsphere so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a equipment is made to levogyration polylactic acid microballon, includes the base, the top central point of base puts and is provided with the agitator tank, the top liftable of agitator tank is provided with the top cap, the inside joint of agitator tank has the inner bag, install rabbling mechanism on the top cap, rabbling mechanism includes agitator motor and puddler, be located agitator motor one side on the top cap and be provided with the outlet duct, the bottom of agitator tank is provided with heating mechanism, heating mechanism includes heating table and heating resistance wire, the heating table is located the interior bottom of agitator tank, heating resistance wire is installed on the heating table.
Preferably, the heating resistance wire is spirally arranged in a mosquito-repellent incense coil thread.
Preferably, the stirring motor is arranged at the top of the top cover, the output end of the stirring motor penetrates through the top cover and is connected with a rotating shaft through a coupling, and a stirring rod is arranged on the outer wall of the rotating shaft.
Preferably, the base is symmetrically provided with air cylinders, the bottom edge of the top cover is provided with a connecting plate, and the upper ends of piston rods of the air cylinders are fixedly connected to the bottom of the connecting plate.
Preferably, the upper end of the outer wall of the inner container is symmetrically provided with a lug, and a lifting handle is welded on the lug.
Preferably, the top edge of the stirring tank is symmetrically provided with a notch, and the convex block is clamped in the notch.
Preferably, the connecting sleeve is arranged at the upper end of the air outlet pipe, a threaded sleeve is integrally formed at the bottom of the connecting sleeve, and a threaded groove matched with the threaded sleeve is formed in the upper part of the inner wall of the air outlet pipe.
Preferably, the inside of screw sleeve installs dustproof filter screen and dehumidification filter screen in proper order, the dehumidification filter screen sets up to the cotton material of water-absorbent resin.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the stirring tank is arranged on the base, the inner container is clamped in the stirring tank, the heating mechanism comprising the heating table and the heating resistance wire is arranged at the inner bottom of the stirring tank, the top cover is arranged on the top of the stirring tank in a lifting manner, the stirring mechanism comprising the stirring motor and the stirring rod is arranged on the top cover, the air cylinder is arranged on the base, the upper end of the piston rod of the air cylinder is connected to the bottom of the connecting plate at the bottom of the top cover, the air outlet pipe is arranged on the top cover, when the stirring tank is used, the top cover is lifted, the inner container is clamped in the stirring tank, the PLA raw material and the emulsifying agent are put into the stirring tank, the top cover is closed, the stirring motor is started to fully mix the PLA raw material and the emulsifying agent to obtain the L-polylactic acid microsphere, and in the process, the heating mechanism at the bottom of the stirring tank is started to heat the raw material in the inner container, so that redundant moisture and volatile substances mixed in the PLA raw material are gasified and discharged through the air outlet pipe.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the top cover of the present utility model;
FIG. 3 is a schematic view of the structure of the liner of the present utility model;
FIG. 4 is a schematic view of the structure of the air outlet pipe of the present utility model.
In the figure: 1. a base; 2. a stirring tank; 3. a top cover; 4. a stirring motor; 5. an inner container; 6. a rotating shaft; 7. a stirring rod; 8. an air outlet pipe; 9. a heating table; 10. heating the resistance wire; 11. a bump; 12. a notch; 13. a lifting handle; 14. a cylinder; 15. a connecting plate; 16. connecting sleeves; 17. a threaded sleeve; 18. a thread groove; 19. a dust-proof filter screen; 20. and (5) dehumidifying a filter screen.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution:
the utility model provides a equipment is made to levogyration polylactic acid microballon, including base 1, the top central point of base 1 puts and is provided with agitator tank 2, the top liftable of agitator tank 2 is provided with top cap 3, the inside joint of agitator tank 2 has inner bag 5, install rabbling mechanism on the top cap 3, rabbling mechanism includes agitator motor 4 and puddler 7, it is provided with outlet duct 8 to lie in agitator motor 4 one side on top cap 3, the bottom of agitator tank 2 is provided with heating mechanism, heating mechanism includes heating platform 9 and heating resistance wire 10, heating platform 9 is located the interior bottom of agitator tank 2, heating resistance wire 10 is installed on heating platform 9. The heating resistance wire 10 is spirally arranged in a mosquito-repellent incense coil shape. The agitator motor 4 is installed in the top of top cap 3, and agitator motor 4's output runs through top cap 3 and has pivot 6 through the coupling joint, is provided with puddler 7 on the outer wall of pivot 6. The base 1 is symmetrically provided with air cylinders 14, the bottom edge of the top cover 3 is provided with a connecting plate 15, and the upper ends of piston rods of the air cylinders 14 are fixedly connected to the bottom of the connecting plate 15.
According to the utility model, the stirring tank 2 is arranged on the base 1, the inner container 5 is clamped in the stirring tank 2, the heating mechanism comprising the heating table 9 and the heating resistance wire 10 is arranged in the inner bottom of the stirring tank 2, the top cover 3 is arranged on the top of the stirring tank 2 in a lifting manner, the stirring mechanism comprising the stirring motor 4 and the stirring rod 7 is arranged on the top cover 3, the air cylinder 14 is arranged on the base 1, the upper end of a piston rod of the air cylinder 14 is connected to the bottom of the connecting plate 15 at the bottom of the top cover 3, the air outlet pipe 8 is arranged on the top cover 3, when the stirring tank is used, the top cover 3 is lifted, the inner container 5 is clamped in the stirring tank 2, PLA raw materials and emulsifying agent are put into the stirring tank 2, the top cover 3 is closed, the stirring motor 4 is started to fully mix the PLA raw materials and the emulsifying agent to obtain the L-polylactic acid microsphere, and in the process, the heating mechanism at the bottom of the stirring tank 2 is started to heat the raw materials in the inner container 5, so that redundant moisture and volatile substances in the PLA raw materials are gasified and discharged through the air outlet pipe 8.
The upper end of the outer wall of the liner 5 is symmetrically provided with a lug 11, and a lifting handle 13 is welded on the lug 11. The top edge of the stirring tank 2 is symmetrically provided with a notch 12, and the convex block 11 is clamped in the notch 12.
Through setting up the lug 11 of taking to carry handle 13 in inner bag 5 outer wall upper end, breach 12 is seted up in the correspondence of agitator tank 2 outer wall upper end, can rise the back with top cap 3 to carry out quick convenient installation use and dismantlement maintenance to inner bag 5, and carry out PLA microballon manufacturing process again after buckle and the breach 12 block, inner bag 5 can not take place to rotate.
The upper end of the air outlet pipe 8 is provided with a connecting sleeve 16, the bottom of the connecting sleeve 16 is integrally formed with a threaded sleeve 17, and the upper part of the inner wall of the air outlet pipe 8 is provided with a threaded groove 18 matched with the threaded sleeve 17. A dust-proof filter screen 19 and a dehumidifying filter screen 20 are sequentially installed inside the threaded sleeve 17, and the dehumidifying filter screen 20 is made of water-absorbent resin cotton.
Through set up adapter sleeve 16 at outlet duct 8 top, adapter sleeve 16 bottom sets up screw sleeve 17, and screw sleeve 17 inside sets up dustproof filter screen 19 and dehumidification filter screen 20, and outlet duct 8 inner wall upper portion sets up screw groove 18 that corresponds with screw sleeve 17, and dustproof filter screen 19 and dehumidification filter screen 20 set up can avoid external water stain dust to get into through outlet duct 8 and lead to the fact the pollution to the inner bag 5 inside, and can avoid the exhaust mixed gas condensation backward flow that has moisture and volatile matter to cause secondary pollution to the raw materials.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (8)
1. The equipment for manufacturing the L-polylactic acid microsphere is characterized in that: including base (1), the top central point of base (1) puts and is provided with agitator tank (2), the top liftable of agitator tank (2) is provided with top cap (3), the inside joint of agitator tank (2) has inner bag (5), install rabbling mechanism on top cap (3), rabbling mechanism includes agitator motor (4) and puddler (7), be located agitator motor (4) one side on top cap (3) and be provided with outlet duct (8), the bottom of agitator tank (2) is provided with heating mechanism, heating mechanism includes heating platform (9) and heating resistance wire (10), heating platform (9) are located the interior bottom of agitator tank (2), heating resistance wire (10) are installed on heating platform (9).
2. The equipment for manufacturing the left-handed polylactic acid microspheres according to claim 1, wherein: the heating resistance wire (10) is spirally arranged in a mosquito-repellent incense coil thread.
3. The equipment for manufacturing the left-handed polylactic acid microspheres according to claim 1, wherein: the stirring motor (4) is arranged at the top of the top cover (3), the output end of the stirring motor (4) penetrates through the top cover (3) and is connected with the rotating shaft (6) through the coupling, and the stirring rod (7) is arranged on the outer wall of the rotating shaft (6).
4. The equipment for manufacturing the left-handed polylactic acid microspheres according to claim 1, wherein: the air cylinder (14) is symmetrically arranged on the base (1), a connecting plate (15) is arranged at the bottom edge of the top cover (3), and the upper end of a piston rod of the air cylinder (14) is fixedly connected to the bottom of the connecting plate (15).
5. The equipment for manufacturing the left-handed polylactic acid microspheres according to claim 1, wherein: the upper end of the outer wall of the inner container (5) is symmetrically provided with a lug (11), and a lifting handle (13) is welded on the lug (11).
6. The equipment for manufacturing the left-handed polylactic acid microspheres according to claim 5, wherein: the top edge of agitator tank (2) symmetry has seted up breach (12), lug (11) joint in the inside of breach (12).
7. The equipment for manufacturing the left-handed polylactic acid microspheres according to claim 1, wherein: the connecting sleeve (16) is arranged at the upper end of the air outlet pipe (8), the threaded sleeve (17) is integrally formed at the bottom of the connecting sleeve (16), and a threaded groove (18) matched with the threaded sleeve (17) is formed in the upper portion of the inner wall of the air outlet pipe (8).
8. The equipment for manufacturing the left-handed polylactic acid microspheres according to claim 7, wherein: the inside of screw sleeve (17) is installed dustproof filter screen (19) and dehumidification filter screen (20) in proper order, dehumidification filter screen (20) set up to the cotton material of water absorbent resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991776.9U CN219667107U (en) | 2023-04-27 | 2023-04-27 | Equipment for manufacturing levorotatory polylactic acid microspheres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991776.9U CN219667107U (en) | 2023-04-27 | 2023-04-27 | Equipment for manufacturing levorotatory polylactic acid microspheres |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219667107U true CN219667107U (en) | 2023-09-12 |
Family
ID=87892763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320991776.9U Active CN219667107U (en) | 2023-04-27 | 2023-04-27 | Equipment for manufacturing levorotatory polylactic acid microspheres |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219667107U (en) |
-
2023
- 2023-04-27 CN CN202320991776.9U patent/CN219667107U/en active Active
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