CN219232326U

CN219232326U - Polymerization equipment of polylactic acid

Info

Publication number: CN219232326U
Application number: CN202320828131.3U
Authority: CN
Inventors: 尹洪喜
Original assignee: Jining Technician College
Current assignee: Jining Technician College
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-06-23
Anticipated expiration: 2033-04-11

Abstract

The utility model relates to the technical field of polymerization of polylactic acid, in particular to polymerization equipment of polylactic acid, the rotation angle of each polymerization plate can be independently regulated, the flow rate of raw materials is controlled, a large amount of polylactic acid can be effectively prevented from remaining in the interior, the interior is convenient to clean up, the polymerization equipment comprises a shell, the bottom end of the shell is provided with a plurality of supporting legs, one side of the top end of the shell is provided with a feed pipe, the other side of the top end of the shell is provided with an exhaust pipe, the side wall of the shell is provided with an air inlet pipe, the bottom end of the shell is provided with a discharge pipe, the interior of the shell is provided with a plurality of polymerization plates, the top end of each polymerization plate is provided with an edge, the bottom end of each polymerization plate is provided with a fixed block, the interior of each fixed block is provided with a connecting shaft, one end of each connecting shaft is provided with a gear, the bottom of each gear is provided with a lead screw, two sides of each lead screw are provided with a connecting block, and one end of each lead screw is provided with a turntable.

Description

Polymerization equipment of polylactic acid

Technical Field

The utility model relates to the technical field of polymerization reaction of polylactic acid, in particular to polymerization reaction equipment of polylactic acid.

Background

Polylactic acid, also known as polylactide, is a thermoplastic aliphatic polyester derived from renewable biomass, typically from fermented plant starch such as corn, tapioca, sugarcane or beet pulp. In 2010, polylactic acid became the second highest-consumption biomass plastic worldwide.

The utility model provides a through retrieving the polymerization equipment of polylactic acid that application number is CN202122563113.0 discloses, includes motor, threaded rod, sleeve pipe, carousel, bull stick and connecting rod, the bull stick passes the one end fixed connection of L type bracing piece and cam, bull stick and L type bracing piece normal running fit, the one end that the cam was kept away from at the bull stick is fixed to the carousel, the motor is located one side of carousel and with L type bracing piece fixed connection, the output fixed connection of threaded rod and motor, the sleeve pipe cover is established on the threaded rod, just sleeve pipe and threaded rod screw-thread fit, the connecting rod is fixed in sheathed tube one end, the spout has been seted up on the connecting rod, the inside slip of spout is provided with the slide bar, the outward flange fixed connection of one end of slide bar and carousel one end realizes that every polymeric plate rotation angle can independently be adjusted to change the flow rate of raw materials, thereby adjust time, improve the flexibility.

The motor, the threaded rod, the sleeve, the turntable, the rotating rod, the connecting rod, the L-shaped supporting rod and the cam are all provided with the inside of the shell, the structure of the device is complex, polylactic acid is easy to be adhered to the outside of the device, a large amount of polylactic acid is easy to remain in the shape of the L-shaped supporting rod, a stubborn stain is formed for a long time, the quality of the polylactic acid can be influenced by the stain, and the device is inconvenient to clean.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the polylactic acid polymerization reaction equipment, wherein the rotation angle of each polymerization plate can be independently adjusted to control the flow rate of raw materials, and a large amount of polylactic acid can be effectively prevented from remaining in the interior, so that the quality of the polylactic acid is ensured, and the interior is convenient to clean.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a polymerization equipment of polylactic acid, which comprises a housin, the bottom of casing is provided with the several supporting leg, one side on casing top is provided with the inlet pipe, the opposite side on casing top is provided with the exhaust tube, be provided with the intake pipe on the lateral wall of casing, the bottom of casing is provided with the discharging pipe, the inside of casing is provided with the several polymerization board, the top of every polymerization board all is provided with the border, the bottom of every polymerization board all is provided with the fixed block, the inside of every fixed block all is provided with the connecting axle, the one end of every connecting axle all is provided with the gear, the bottom of every gear all is provided with the lead screw, the both sides of every lead screw all are provided with the connecting block, the one end of every lead screw all is provided with the carousel.

Furthermore, the polymerization plates are arranged up and down, the polymerization plates are obliquely arranged, and the oblique directions of the two adjacent polymerization plates are opposite.

Further, the air inlet pipe is connected with an external air source.

Further, the exhaust pipe is connected with a vacuum pump.

Further, the connecting shaft and the shell are in rotary connection through the mechanical sealing piece, the connecting shaft and the fixed block are in fixed connection, and the connecting shaft and the gear are in fixed connection.

Further, the connecting block and the shell are fixedly connected, and the connecting block and the screw rod are rotationally connected.

Further, the gear is provided with scales.

(III) beneficial effects

Compared with the prior art, the utility model provides polylactic acid polymerization equipment, which has the following beneficial effects:

according to the polylactic acid polymerization reaction equipment, through the arrangement of the lead screw, the rotary table, the gear and the connecting shaft, the inclination angle of the polymerization plate can be adjusted by rotating the rotary table, and the flow rate of raw materials is controlled; the screw rod, the rotary table and the gear are all arranged outside the shell, only the connecting shaft part is arranged inside the shell, and the connecting shaft is simple in structure and smooth in surface, so that the residue of polylactic acid can be effectively reduced, and the quality of the polylactic acid is guaranteed while the inside is further conveniently cleaned.

Drawings

FIG. 1 is a schematic diagram of an equivalent structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic diagram of an equivalent structure of a polymerization plate according to the present utility model;

fig. 4 is a partially enlarged schematic view of the structure of the present utility model at a shown in fig. 1.

In the figure: 1. a housing; 2. support legs; 3. a feed pipe; 4. an air inlet pipe; 5. an exhaust pipe; 6. a discharge pipe; 7. a polymerization plate; 8. an edge; 9. a fixed block; 10. a connecting shaft; 11. a gear; 12. a screw rod; 13. a connecting block; 14. a turntable.

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 polymerization reaction equipment of polylactic acid of the utility model comprises a shell 1, the bottom of the shell 1 is provided with a plurality of supporting legs 2, one side of the top end of the shell 1 is provided with a feed pipe 3, the other side of the top end of the shell 1 is provided with an exhaust pipe 5, the exhaust pipe 5 is connected with a vacuum pump, the interior of the shell 1 is pumped, the side wall of the shell 1 is provided with an air inlet pipe 4, the air inlet pipe 4 is connected with an external air source, the interior of the shell 1 is supplied with air, the bottom of the shell 1 is provided with a discharge pipe 6, the interior of the shell 1 is provided with a plurality of polymerization plates 7, the plurality of polymerization plates 7 are arranged up and down, the plurality of polymerization plates 7 are all obliquely arranged, the top ends of the two adjacent polymerization plates 7 are obliquely arranged, the top ends of each polymerization plate 7 are all provided with edges 8, the bottom end of each polymerization plate 7 is provided with a fixed block 9, the interior of each fixed block 9 is provided with a connecting shaft 10, the connecting shaft 10 is rotationally connected with the shell 1 through a mechanical seal, the connecting shaft 10 is fixedly connected with the fixed block 9, the connecting shaft 10 is rotationally connected with the gear 11, the connecting shaft 11 is fixedly connected with the gear 11, each side of the rotating shaft is provided with a rotary screw rod 12, the rotary screw rod is provided with a rotary screw rod 13, and the two sides of each rotary screw rod is provided with a rotary screw rod 13, and each rotary screw rod 13 is provided with an accurate rotary screw rod 12, and each rotary screw rod is provided with an angle of a rotary screw rod 13, and each rotary screw rod 13 is provided with each rotary joint 13, and each rotary screw rod 13 is provided with each rotary 13.

To sum up, when the polylactic acid polymerization reaction equipment is used, the rotating turntable 14 drives the screw rod 12 to rotate, the screw rod 12 rotates to drive the gear 11 to rotate, and the gear 11 rotates to drive the connecting shaft 10 and the polymerization plate 7 to rotate, so that the rotating turntable 14 can adjust the inclination angle of the polymerization plate 7, control the flow rate of raw materials, the connecting shaft 10 is simple in structure and smooth in surface, the polylactic acid residue can be effectively reduced, and after the work is completed, the polymerization plate 7 and the connecting shaft 10 are washed by clean water.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A polylactic acid polymerization reaction apparatus comprising a housing (1), characterized in that: the utility model discloses a feed pipe, including casing (1), connecting axle (10), connecting axle (12), connecting block (13) are all provided with to the bottom of casing (1), connecting axle (7) are all provided with, every the top of polymerizing board (7) all is provided with border (8), every polymerizing board (7), connecting axle (9) are all provided with connecting axle (10), every connecting axle (10) are all provided with gear (11) in the one end, every gear (11) are all provided with lead screw (12) in the bottom, every lead screw (12) both sides all are provided with connecting block (13), every lead screw (12) one end all is provided with carousel (14).

2. The polymerization reaction apparatus for polylactic acid according to claim 1, wherein: the polymerization plates (7) are arranged up and down, the polymerization plates (7) are obliquely arranged, and the oblique directions of the two adjacent polymerization plates (7) are opposite.

3. The polymerization reaction apparatus for polylactic acid according to claim 1, wherein: the air inlet pipe (4) is connected with an external air source.

4. The polymerization reaction apparatus for polylactic acid according to claim 1, wherein: the exhaust pipe (5) is connected with a vacuum pump.

5. The polymerization reaction apparatus for polylactic acid according to claim 1, wherein: the connecting shaft (10) is rotationally connected with the shell (1) through a mechanical sealing piece, the connecting shaft (10) is fixedly connected with the fixed block (9), and the connecting shaft (10) is fixedly connected with the gear (11).

6. The polymerization reaction apparatus for polylactic acid according to claim 1, wherein: the connecting block (13) is fixedly connected with the shell (1), and the connecting block (13) is rotationally connected with the screw rod (12).

7. The polymerization reaction apparatus for polylactic acid according to claim 1, wherein: the gear (11) is provided with scales.