CN215550060U

CN215550060U - A prilling granulator for production of degradable plastics

Info

Publication number: CN215550060U
Application number: CN202121820199.4U
Authority: CN
Inventors: 高祥忠
Original assignee: Tongcheng Xiangyun Plastic Industry Co ltd
Current assignee: Tongcheng Xiangyun Plastic Industry Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-01-18
Anticipated expiration: 2031-08-05

Abstract

The utility model discloses a granulating device for producing degradable plastics, relates to the field related to the production of the degradable plastics, and aims to solve the problems that the conventional granulating device cuts granules by means of the circular swinging of a cutter body, but the granulating size has a certain standard, so that the circular swinging speed of the cutter body is required to be high, and under the quick action of the cutter body, the friction force can generate large heat, so that the temperature of the cutter body is continuously increased, and the granulating is influenced. The utility model discloses a feed hopper, including shell body, division board, lower support assembly, cutting blade, feed hopper, lower support assembly, the inside fixedly connected with division board of shell body, the inside upper end of division board is provided with extrudes the passageway, the inside middle fixedly connected with lower support assembly along division board one side of shell body, lower support assembly's upper end rotates and is connected with vertical quill shaft, the outside annular array of vertical quill shaft is fixed with the cutting leaf, the last one side of keeping away from of lower support assembly extrudes the passageway runs through and is provided with the feed chute, the lower extreme fixedly connected with half cone feed hopper of feed chute is followed to lower support assembly lower extreme.

Description

A prilling granulator for production of degradable plastics

Technical Field

The utility model relates to the field related to degradable plastic production, in particular to a granulating device for degradable plastic production.

Background

The granulating equipment is a forming machine which can manufacture materials into specific shapes. The method generally comprises the following steps: a roller dry-method granulator, a drum granulator and a dry-method rolling granulator. Along with the abundance of material resources and the development of the fields of diet, amusement and the like, more and more plastic products flow into the market, and due to the degradability of common plastics, degradable plastics are gradually popularized and used in various fields in China at present. Cleaning and sterilizing degradable plastics, pulverizing, removing impurities, drying, adding additive material, granulating, and making plastic granules.

The current granulating device cuts granules by means of the circular swinging of the cutter body, but the granulating size has certain standards, so the circular swinging speed of the cutter body is required to be higher, and under the quick action of the cutter body, the friction force can generate larger heat, so the temperature of the cutter body is continuously increased, and the granule cutting is influenced; therefore, the market is urgently in need of developing a granulating device for producing degradable plastics to help people to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a granulating device for producing degradable plastics, which aims to solve the problems that the conventional granulating device provided by the background art cuts granules by means of the circular swinging of a cutter body, but the granulating size has certain standards, so that the circular swinging speed of the cutter body is required to be high, and under the quick action of the cutter body, the friction force can generate large heat, so that the temperature of the cutter body is continuously increased, and the granulating is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: a granulating device for producing degradable plastics comprises an outer shell, wherein a partition plate is fixedly connected inside the outer shell, an extrusion channel is arranged at the upper end inside the partition plate, a lower support assembly is fixedly connected inside the outer shell along the middle of one side of the partition plate, the upper end of the lower support assembly is rotatably connected with a vertical hollow shaft, cutting blades are fixed on an annular array outside the vertical hollow shaft, a discharging groove is arranged on one side, away from the extrusion channel, of the lower support assembly in a penetrating manner, a semi-conical discharging hopper is fixedly connected at the lower end of the lower support assembly along the lower end of the discharging groove, the semi-conical discharging hopper is fixed with the inner wall of the outer shell, each cutting blade comprises a fixed vertical plate, an arc vertical plate is fixedly connected in the clockwise direction outside the fixed vertical plate, a cutting blade is arranged on the other end face of the arc vertical plate, and rubber layers are arranged at the lower ends of the arc vertical plate and the fixed vertical plate, the rubber layer is attached to the upper end face of the lower support assembly.

Preferably, a melting cavity is arranged in the outer shell along the other side of the partition plate, a horizontal hollow shaft is fixedly connected to the middle of the interior of the melting cavity, and a spiral conveying piece is arranged on the outer side of the horizontal hollow shaft.

Preferably, the middle of shell body one side is provided with first fixed box along one side of horizontal quill shaft, a driving motor is installed to the opposite side of first fixed box, and first fixed box is passed through to the one end of horizontal quill shaft and is connected with a driving motor output shaft, is located be provided with first through-hole on the horizontal quill shaft in the first fixed box, the upper end intercommunication of first fixed box has the steam admission pipe, be provided with the steam discharge pipe in the inside inner chamber of division board, steam discharge pipe and horizontal quill shaft intercommunication.

Preferably, a coolant inlet pipe is arranged at the upper end of the outer shell along the upper end of the vertical hollow shaft, a second fixing box body is arranged at the lower end of the lower support assembly along the lower end of the vertical hollow shaft, a second driving motor is installed at the lower end of the second fixing box body, one end of the vertical hollow shaft penetrates through the second fixing box body to be connected with an output shaft of the second driving motor, a second communicating hole is formed in the vertical hollow shaft in the second fixing box body, a coolant discharging pipe is further installed on the second fixing box body, and the coolant inlet pipe, the vertical hollow shaft, the second fixing box body and the coolant discharging pipe are communicated.

Preferably, a heating jacket is arranged in the middle of the outer side of the outer shell, and a heating unit is installed in the heating jacket.

Preferably, one side of the upper end of the outer shell, which is close to the first driving motor, is provided with a feeding hopper, the feeding hopper is communicated with the melting cavity, the lower end of the outer shell, which is far away from one side of the first driving motor, is provided with a discharging hopper, and the discharging hopper is communicated with the discharging groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model discloses an in, the plastic strip is extruded in extruding the passageway, and the cutting leaf rotates under the vertical quill shaft rotation of second driving motor drive, and a plurality of cutting leaves cut the plastic strip in proper order, make it into the graininess, and plastic granules promotes to unloading trench position under the rotation of cutting leaf to hopper falls to arrange the hopper position through the semiconical unloading and arranges the material, and a plurality of cutting leaves cut in proper order, avoid same cutting leaf circulation work, lead to its surface temperature too high. The problem of current prilling granulator rely on the circulation swing of cutter body to cut when cutting grain, but the granulation size has certain standard, consequently requires cutter body circulation swing's speed very fast, and under the cutter body fast action, frictional force can produce great heat, leads to the temperature of cutter body to last rising, influences and cuts grain is cut to the grain.

2. The utility model discloses an in, before the work, let in steam to the steam admission pipe, steam gets into in the first fixed box to through being located the hole entering horizontal quill shaft on the horizontal quill shaft in the first fixed box, steam heats the screw conveying spare, discharges through the steam discharge pipe after the heating. By preheating the spiral conveying piece, the situation that the melting is incomplete due to the fact that the temperature inside the melting cavity is high and the surface temperature of the spiral conveying piece is low after the plastic enters the melting cavity is avoided; and the heating efficiency can be improved by the mode of heating the inside and the outside together.

3. The utility model discloses an in, the plastic strip is extruded in extruding the passageway, and the coolant liquid passes through the coolant liquid admission pipe and gets into vertical quill shaft, discharges through the coolant liquid discharge pipe behind the fixed box of second, and the coolant liquid cools off the cutting blade. By cooling the cutting blade, the cutting blade is always kept in contact with the plastic strip at a lower temperature, so that the problem of plastic adhesion caused by the influence of high temperature on the granulating operation is avoided.

Drawings

FIG. 1 is a schematic sectional view of a pelletizing apparatus for degradable plastic production according to the present invention;

FIG. 2 is a schematic view of the connection between the lower support assembly and the vertical hollow shaft of the present invention;

fig. 3 is a schematic view of the structure of the cutting blade of the present invention.

In the figure: 1. an outer housing; 2. a heating jacket; 3. a heating unit; 4. feeding into a hopper; 5. a discharge hopper; 6. a melting chamber; 7. a screw conveyor; 8. a horizontal hollow shaft; 9. a first stationary box; 10. a first drive motor; 11. a steam inlet pipe; 12. a partition plate; 13. a steam discharge pipe; 14. an extrusion channel; 15. a lower support assembly; 16. a vertical hollow shaft; 17. cutting leaves; 18. a coolant inlet tube; 19. a second stationary box; 20. a second drive motor; 21. a coolant discharge pipe; 22. a semi-conical blanking hopper; 23. a discharging groove; 24. fixing the vertical plate; 25. an arc-shaped vertical plate; 26. a cutting edge; 27. a rubber layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an embodiment of the present invention is shown: a granulating device for producing degradable plastics comprises an outer shell 1, a heating jacket 2 is arranged in the middle of the outer side of the outer shell 1, a heating unit 3 is installed in the heating jacket 2, a partition plate 12 is fixedly connected in the outer shell 1, an extrusion channel 14 is arranged at the upper end in the partition plate 12, a lower support component 15 is fixedly connected in the outer shell 1 along the middle of one side of the partition plate 12, the upper end of the lower support component 15 is rotatably connected with a vertical hollow shaft 16, cutting blades 17 are fixed on the outer side of the vertical hollow shaft 16 in an annular array mode, a plurality of cutting blades 17 sequentially cut plastic strips to form granules, a blanking groove 23 is arranged on one side, far away from the extrusion channel 14, of the lower support component 15 in a penetrating mode, a semi-conical blanking hopper 22 is fixedly connected at the lower end of the lower support component 15 along the lower end of the blanking groove 23, and the plastic granules are pushed to the position of the blanking groove 23 under the rotating action of the cutting blades 17, and fall to arranging hopper 5 position and arrange the material through hopper 22 under the half cone, hopper 22 is fixed with 1 inner wall of shell body under the half cone, cutting leaf 17 is including fixed riser 24, the clockwise fixedly connected with arc riser 25 in the fixed riser 24 outside, another terminal surface of arc riser 25 is provided with cutting edge 26, the lower extreme of arc riser 25 and fixed riser 24 is provided with rubber layer 27, rubber layer 27 and the laminating of lower supporting component 15 up end avoid plastic granules not to follow the condition appearance that the rotation fell down.

Further, a melting cavity 6 is arranged in the outer shell 1 along the other side of the partition plate 12, a horizontal hollow shaft 8 is fixedly connected in the middle of the inner part of the melting cavity 6, a first fixed box 9 is arranged in the middle of one side of the outer shell 1 along one side of the horizontal hollow shaft 8, a first driving motor 10 is installed on the other side of the first fixed box 9, a feeding hopper 4 is arranged on one side of the upper end of the outer shell 1 close to the first driving motor 10, the feeding hopper 4 is communicated with the melting cavity 6, one end of the horizontal hollow shaft 8 penetrates through the first fixed box 9 to be connected with an output shaft of the first driving motor 10, a first communicating hole is arranged on the horizontal hollow shaft 8 in the first fixed box 9, a steam inlet pipe 11 is communicated with the upper end of the first fixed box 9, a steam outlet pipe 13 is arranged in an inner cavity in the partition plate 12, the steam outlet pipe 13 is communicated with the horizontal hollow shaft 8, a discharge hopper 5 is arranged at the lower end of the outer shell 1 far away from the first driving motor 10, the discharge hopper 5 is communicated with the blanking groove 23, the outer side of the horizontal hollow shaft 8 is provided with a spiral conveying piece 7, steam is introduced into the steam inlet pipe 11, the steam enters the first fixed box body 9 and enters the horizontal hollow shaft 8 through a first connecting hole on the horizontal hollow shaft 8 in the first fixed box body 9, the spiral conveying piece 7 is heated by the steam, and the steam is discharged through a steam discharge pipe 13 after being heated; the screw conveying piece 7 is preheated in advance, the heating unit 3 is prevented from being slow in heating efficiency, the screw conveying piece 7 cannot be heated quickly to cause high internal temperature and insufficient temperature of the screw conveying piece 7, so that the plastic is not completely melted and normal granulation work is difficult to carry out.

Further, a coolant inlet pipe 18 is arranged at the upper end of the outer shell 1 along the upper end of the vertical hollow shaft 16, a second fixing box 19 is arranged at the lower end of the lower support assembly 15 along the lower end of the vertical hollow shaft 16, a second driving motor 20 is installed at the lower end of the second fixing box 19, one end of the vertical hollow shaft 16 penetrates through the second fixing box 19 to be connected with an output shaft of the second driving motor 20, a second communicating hole is formed in the vertical hollow shaft 16 located in the second fixing box 19, a coolant discharge pipe 21 is further installed on the second fixing box 19, the coolant inlet pipe 18, the vertical hollow shaft 16, the second fixing box 19 and the coolant discharge pipe 21 are communicated, coolant enters the vertical hollow shaft 16 through the coolant inlet pipe 18 and is discharged through the coolant discharge pipe 21 after passing through the second fixing box 19, and the cutting blade 17 is cooled by the coolant.

The working principle is as follows: when the steam heating device is used, steam is introduced into the steam inlet pipe 11, enters the first fixing box body 9 and enters the horizontal hollow shaft 8 through the holes in the horizontal hollow shaft 8 in the first fixing box body 9, the spiral conveying piece 7 is heated by the steam, and the heated steam is discharged through the steam discharge pipe 13; while the heating unit 3 preheats the melting chamber 6. Raw materials are put in from a feeding hopper 4, a first driving motor 10 drives a horizontal hollow shaft 8 to rotate, a spiral conveying piece 7 is driven to synchronously rotate, plastic keeps a molten state to reach the position of an extrusion channel 14 under the heating action of a heating unit 3, and precooling is carried out along a cooling structure at the upper end and the lower end of the extrusion channel 14 in a partition plate 12, so that the surface of the plastic is solidified. The plastic strips are extruded from the extrusion channel 14, the cooling liquid enters the vertical hollow shaft 16 through the cooling liquid inlet pipe 18, the cooling liquid is discharged through the cooling liquid outlet pipe 21 after passing through the second fixing box body 19, the cutting blades 17 are cooled by the cooling liquid, the cutting blades 17 rotate under the rotation effect of the vertical hollow shaft 16 driven by the second driving motor 20, the plastic strips are sequentially cut by the cutting blades 17 to be granular, and the surface of a cutting surface is solidified due to the cooling effect of the cutting blades 17. The plastic particles are pushed to the position of the blanking groove 23 under the rotation action of the cutting blade 17, and fall to the position of the discharge hopper 5 through the semi-conical blanking hopper 22 for discharging.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A granulation device for the production of degradable plastics, comprising an outer casing (1), characterized in that: the inner part of the outer shell (1) is fixedly connected with a partition plate (12), the upper end of the inner part of the partition plate (12) is provided with an extrusion channel (14), the inner part of the outer shell (1) is fixedly connected with a lower support component (15) along the middle of one side of the partition plate (12), the upper end of the lower support component (15) is rotatably connected with a vertical hollow shaft (16), the outer side annular array of the vertical hollow shaft (16) is fixed with cutting blades (17), one side of the lower support component (15) far away from the extrusion channel (14) is provided with a blanking groove (23) in a penetrating manner, the lower end of the lower support component (15) is fixedly connected with a semi-conical blanking hopper (22) along the lower end of the blanking groove (23), the semi-conical blanking hopper (22) is fixed with the inner wall of the outer shell (1), the cutting blades (17) comprise a fixed vertical plate (24), and the clockwise direction outside of the fixed vertical plate (24) is fixedly connected with an arc-shaped vertical plate (25), the other end face of the arc-shaped vertical plate (25) is provided with a cutting edge (26), the lower ends of the arc-shaped vertical plate (25) and the fixed vertical plate (24) are provided with a rubber layer (27), and the rubber layer (27) is attached to the upper end face of the lower support assembly (15).

2. The granulation device for producing degradable plastics according to claim 1, wherein: the melting chamber (6) is arranged on the other side of the inner portion of the outer shell (1) along the partition plate (12), a horizontal hollow shaft (8) is fixedly connected to the middle of the inner portion of the melting chamber (6), and a spiral conveying piece (7) is arranged on the outer side of the horizontal hollow shaft (8).

3. The granulation device for the production of degradable plastics according to claim 2, characterized in that: the steam turbine casing is characterized in that a first fixing box body (9) is arranged in the middle of one side of the casing body (1) along one side of the horizontal hollow shaft (8), a first driving motor (10) is installed on the other side of the first fixing box body (9), one end of the horizontal hollow shaft (8) penetrates through the first fixing box body (9) to be connected with an output shaft of the first driving motor (10), a first connecting hole is formed in the horizontal hollow shaft (8) in the first fixing box body (9), the upper end of the first fixing box body (9) is communicated with a steam inlet pipe (11), a steam outlet pipe (13) is arranged in an inner cavity in the partition plate (12), and the steam outlet pipe (13) is communicated with the horizontal hollow shaft (8).

4. The granulation device for producing degradable plastics according to claim 1, wherein: the upper end of shell body (1) upper end along vertical quill shaft (16) is provided with coolant liquid admission pipe (18), lower support subassembly (15) lower extreme is provided with the fixed box (19) of second along the lower extreme of vertical quill shaft (16), second driving motor (20) are installed to the lower extreme of the fixed box (19) of second, and the one end of vertical quill shaft (16) is passed the fixed box (19) of second and is connected with second driving motor (20) output shaft, is located be provided with the second intercommunicating pore on the vertical quill shaft (16) in the fixed box (19) of second, still install coolant liquid discharge pipe (21) on the fixed box (19) of second, coolant liquid admission pipe (18), vertical quill shaft (16), the fixed box (19) of second and coolant liquid discharge pipe (21) intercommunication.

5. The granulation device for producing degradable plastics according to claim 1, wherein: the middle of the outer side of the outer shell (1) is provided with a heating jacket (2), and a heating unit (3) is installed in the heating jacket (2).

6. The granulation device for the production of degradable plastics according to claim 3, characterized in that: one side that shell body (1) upper end is close to first driving motor (10) is provided with into hopper (4), goes into hopper (4) and melting chamber (6) intercommunication, the lower extreme that shell body (1) kept away from first driving motor (10) one side is provided with row hopper (5), arranges hopper (5) and lower silo (23) intercommunication.