Extrusion granulator

Abstract

The utility model relates to the technical field of extrusion pelletizers, in particular to an extrusion pelletizer which comprises a pelletizing box, a screening box, a slag box, a pelletizing component, a transmission component and a feeding hopper, stirring blades are installed in the feeding hopper, a spiral conveying pipe is installed at the lower end of the slag box, a circulating pipe is arranged at one end of the spiral conveying pipe, and a discharging pipe is arranged at the other end of the spiral conveying pipe. And a filtering net is arranged on the inner side of the screening box, a spiral rod is arranged in the spiral conveying pipe, a first motor is installed at the position, corresponding to the spiral rod, of one side of the spiral conveying pipe, and a second motor is installed at the position, corresponding to the stirring blades, of one side of the feeding hopper. According to the utility model, the pelletizing cylinder is disassembled and assembled through the electric adjusting rod and the push plate, so that the pelletizing cylinder is convenient to replace, pelletizing operation of particles with different sizes can be carried out, screened slag is circulated through the spiral conveying pipe and the circulating pipe, the slag is prevented from being manually shoveled into the charging hopper, and the operation is time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion granulators, and specifically relates to an extrusion granulator. Background Art

[0002] An extrusion granulator is a dry granulation process that uses pressure to agglomerate solid materials. The materials are extruded by two reversely rotating roller shafts, which are driven by an eccentric sleeve or a hydraulic system. When the solid materials are extruded, the air between the powder particles is excluded, the particles are rearranged, the voids between the materials are eliminated, and granulation operations are carried out.

[0003] The Chinese patent discloses an extrusion granulator (authorization announcement number CN215243102U). The patented technology has a simple structure and is easy to operate. The cleaning brush of the utility model can clean the residual powder on the extrusion roller, facilitating powder recovery, reducing excessive defects on the formed tablets, improving the quality of the formed tablets, and further reducing production costs. However, the above extrusion roller is an integral structure, and extrusion rollers for granulation of different sizes cannot be replaced. When granulation operations of different particle sizes are required, the entire extrusion roller needs to be replaced, which is not conducive to the flexibility of use. The screened slag needs to be manually shoveled into the extrusion granulator, which is time-consuming and laborious, and the labor cost is relatively high. Therefore, those skilled in the art have provided an extrusion granulator to solve the problems raised in the above background art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an extrusion granulator to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An extrusion granulator includes a granulation box, a screening box, a slag box, a granulation pressing member, a transmission member, and a feeding hopper. The screening box is located below the granulation box, the slag box is located below the screening box, the granulation pressing member is located inside the granulation box, the transmission member is located on one side of the granulation box, the feeding hopper is located above the granulation box. A stirring blade is installed inside the feeding hopper. A spiral feeding pipe is installed at the lower end of the slag box. One end of the spiral feeding pipe is provided with a circulation pipe. A filter screen is arranged inside the screening box. A spiral rod is arranged inside the spiral feeding pipe. A first motor is installed on one side of the spiral feeding pipe corresponding to the position of the spiral rod. A second motor is installed on one side of the feeding hopper corresponding to the position of the stirring blade. The granulation pressing member includes a control box. An electric adjusting rod is installed on the outer side of the control box. A push plate is arranged at the outer end of the electric adjusting rod. A granulation cylinder is arranged on the outer side of the push plate. Rotating rods are arranged at both sides of the control box.

[0007] As a further solution of the utility model: a bearing is installed at the inner end of the rotating rod, a first gear is installed at the outer end of the rotating rod, the transmission member includes a fixing plate, an installation plate is arranged at the lower position on one side of the fixing plate, a third motor is installed on the upper side of the installation plate, a second gear is arranged at the inner end of the third motor, a transmission belt is arranged on the outer side of the second gear, and a rotating hole is formed on the outer side of the fixing plate.

[0008] As a further solution of the utility model: the lower end of the feeding hopper is communicated with the upper end of the granulating box, the lower end of the granulating box is communicated with the upper end of the screening box, the lower end of the screening box is communicated with the upper end of the slag box through a filter screen, the lower end of the slag box is communicated with the input end of the spiral feeding pipe, the output end of the spiral feeding pipe is communicated with the input end of the circulation pipe, and the output end of the circulation pipe is communicated with the upper end of the feeding hopper.

[0009] As a further solution of the utility model: one end of the granulation pressing member rotates inside the granulating box through a rotating rod, the other end of the granulation pressing member rotates inside the transmission member through a rotating rod, and the push plate slides outside the control box through an electric adjusting rod.

[0010] As a further solution of the utility model: the stirring blades rotate inside the feeding hopper through a second motor, and the screw rod rotates inside the spiral feeding pipe through a first motor.

[0011] As a further solution of the utility model: the rotating rod rotates inside the rotating hole through a bearing, and the rotating rod rotates inside the granulating box through a bearing.

[0012] As a further solution of the utility model: the first gear is located inside the transmission belt, and the fixing plate is fixed at one side position of the granulating box.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The extrusion granulator of the utility model disassembles and installs the granulation cylinder through the electric adjusting rod and the push plate, which is convenient for replacing the granulation cylinder, can perform granulation operations of different particle sizes, and is beneficial to the flexibility of use;

[0015] The screened slag is circulated through the spiral feeding pipe and the circulation pipe, avoiding manually shoveling the slag into the feeding hopper, saving time and effort in operation and reducing labor costs. Description of the drawings

[0016] Figure 1 It is a structural schematic diagram of an extrusion granulator;

[0017] Figure 2Perspective view of an extrusion granulator;

[0018] Figure 3 Schematic structural view of the granulation member in an extrusion granulator;

[0019] Figure 4 Schematic structural view of the transmission member in an extrusion granulator.

[0020] In the figure: 1, granulation box; 2, screening box; 3, slag box; 4, granulation member; 5, transmission member; 6, feeding hopper; 7, stirring blade; 8, spiral feeding pipe; 9, circulation pipe; 10, filter screen; 11, screw rod; 12, first motor; 13, second motor; 14, control box; 15, electric adjusting rod; 16, push plate; 17, granulation cylinder; 18, rotating rod; 19, bearing; 20, first gear; 21, fixing plate; 22, mounting plate; 23, third motor; 24, second gear; 25, transmission belt; 26, rotating hole. Detailed implementation manner

[0021] Please refer to Figures 1 to 4, in the embodiment of the present utility model, an extrusion granulator includes a granulation box 1, a screening box 2, a slag box 3, a granulation pressing member 4, a transmission member 5 and a feeding hopper 6. The screening box 2 is located below the granulation box 1, the slag box 3 is located below the screening box 2, the granulation pressing member 4 is located inside the granulation box 1, the transmission member 5 is located on one side of the granulation box 1, the feeding hopper 6 is located above the granulation box 1. A stirring blade 7 is installed inside the feeding hopper 6. A spiral feeding pipe 8 is installed at the lower end of the slag box 3. One end of the spiral feeding pipe 8 is provided with a circulation pipe 9. A filter screen 10 is arranged inside the screening box 2. A spiral rod 11 is arranged inside the spiral feeding pipe 8. A first motor 12 is installed at a position corresponding to the spiral rod 11 on one side of the spiral feeding pipe 8. A second motor 13 is installed at a position corresponding to the stirring blade 7 on one side of the feeding hopper 6. The granulation pressing member 4 includes a control box 14. An electric adjusting rod 15 is installed on the outer side of the control box 14. A push plate 16 is arranged at the outer end of the electric adjusting rod 15. A granulation cylinder 17 is arranged at the outer side of the push plate 16. Rotating rods 18 are arranged at both sides of the control box 14. The lower end of the feeding hopper 6 communicates with the upper end of the granulation box 1. The lower end of the granulation box 1 communicates with the upper end of the screening box 2. The lower end of the screening box 2 communicates with the upper end of the slag box 3 through the filter screen 10. The lower end of the slag box 3 communicates with the input end of the spiral feeding pipe 8. The output end of the spiral feeding pipe 8 communicates with the input end of the circulation pipe 9. The output end of the circulation pipe 9 communicates with the upper end of the feeding hopper 6. One end of the granulation pressing member 4 rotates inside the granulation box 1 through the rotating rod 18. The other end of the granulation pressing member 4 rotates inside the transmission member 5 through the rotating rod 18. The push plate 16 slides on the outer side of the control box 14 through the electric adjusting rod 15. The stirring blade 7 rotates inside the feeding hopper 6 through the second motor 13. The spiral rod 11 rotates inside the spiral feeding pipe 8 through the first motor 12. Carry an extrusion granulator to the use position, add materials into the feeding hopper 6, introduce the materials inside the feeding hopper 6 into the granulation box 1. The second motor 13 operates to drive the stirring blade 7 to rotate, stirring the materials inside the feeding hopper 6. The transmission member 5 operates to drive the rotating rod 18 to rotate. The rotating rod 18 rotates inside the granulation box 1. The rotating rod 18 drives the control box 14, the electric adjusting rod 15, the push plate 16 and the granulation cylinder 17 to rotate for granulation operation. The particles are screened through the filter screen 10, and the slag enters the slag box 3. The first motor 12 operates to drive the spiral rod 11 to rotate. The slag inside the slag box 3 is introduced into the feeding hopper 6 through the spiral feeding pipe 8 and the circulation pipe 9 for circular granulation. Then, the granulation operation is completed. Remove the transmission member 5 on one side of the granulation box 1. The control box 14 controls the electric adjusting rod 15 to contract. The electric adjusting rod 15 drives the push plate 16 to leave the inner wall of the granulation cylinder 17. The granulation cylinder 17 slides out of the push plate 16, and a new granulation cylinder 17 is replaced to perform granulation operations for particles of different sizes.

[0022] AtFigure 2 , 3 , among Figures 3 and 4: A bearing 19 is installed at the inner end of the rotating rod 18, and a first gear 20 is installed at the outer end of the rotating rod 18. The transmission member 5 includes a fixing plate 21. At the lower position on one side of the fixing plate 21, a mounting plate 22 is provided. A third motor 23 is installed on the upper side of the mounting plate 22. A second gear 24 is provided at the inner end of the third motor 23. A transmission belt 25 is provided on the outer side of the second gear 24. A rotating hole 26 is formed on the outer side of the fixing plate 21. The rotating rod 18 rotates inside the rotating hole 26 through the bearing 19. The rotating rod 18 rotates inside the granulating box 1 through the bearing 19. The first gear 20 is located inside the transmission belt 25. The fixing plate 21 is fixed at one side of the granulating box 1. When the third motor 23 operates, it drives the transmission belt 25 through the second gear 24. The transmission belt 25 drives the first gear 20 to rotate. The first gear 20 drives the rotating rod 18. The rotating rod 18 rotates inside the granulating box 1 through the bearing 19. The rotating rod 18 drives the control box 14, the electric adjusting rod 15, the pushing plate 16 and the granulating cylinder 17 to rotate for granulating operation, thus completing the granulating operation. The upper end of the transmission belt 25 leaves the first gear 20, and the bearing 19 slides out of the rotating hole 26. The fixing plate 21 on one side of the granulating box 1 is removed. The control box 14 controls the electric adjusting rod 15 to contract. The electric adjusting rod 15 drives the pushing plate 16 to leave the inner wall of the granulating cylinder 17. The granulating cylinder 17 slides out of the pushing plate 16, and a new granulating cylinder 17 is replaced.

[0023] The working principle of the present utility model is as follows: Carry an extrusion granulator to the use position, add materials into the inside of the feeding hopper 6, and the materials inside the feeding hopper 6 are introduced into the inside of the granulating box 1. The second motor 13 operates to drive the stirring blade 7 to rotate, stirring the materials inside the feeding hopper 6. The third motor 23 operates to drive the transmission belt 25 through the second gear 24. The transmission belt 25 drives the first gear 20 to rotate. The first gear 20 drives the rotating rod 18. The rotating rod 18 rotates inside the granulating box 1 through the bearing 19. The rotating rod 18 drives the control box 14, the electric adjusting rod 15, the pushing plate 16 and the granulating cylinder 17 to rotate for granulating operation. The particles are screened by the filter screen 10, and the slag enters the inside of the slag box 3. The first motor 12 operates to drive the screw rod 11 to rotate. The slag inside the slag box 3 is introduced into the inside of the feeding hopper 6 through the screw conveyor pipe 8 and the circulation pipe 9 for circulating granulation. Then, after the granulating operation is completed, the upper end of the transmission belt 25 leaves the first gear 20, and the bearing 19 slides out of the rotating hole 26. The fixing plate 21 on one side of the granulating box 1 is removed. The control box 14 controls the electric adjusting rod 15 to contract. The electric adjusting rod 15 drives the pushing plate 16 to leave the inner wall of the granulating cylinder 17. The granulating cylinder 17 slides out of the pushing plate 16, and a new granulating cylinder 17 is replaced to perform granulating operations for different-sized particles.

[0024] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. An extrusion granulator, comprising a granulation box (1), a screening box (2), a slag box (3), a granulation pressing member (4), a transmission member (5) and a feeding hopper (6), wherein the screening box (2) is located at a lower position of the granulation box (1), the slag box (3) is located at a lower position of the screening box (2), the granulation pressing member (4) is located at an inner position of the granulation box (1), the transmission member (5) is located at a side position of the granulation box (1), and the feeding hopper (6) is located at an upper position of the granulation box (1), characterized in that: A stirring blade (7) is installed inside the feeding hopper (6), a spiral feeding pipe (8) is installed at the lower end of the slag box (3), a circulation pipe (9) is arranged at one end of the spiral feeding pipe (8), a filter screen (10) is arranged on the inner side of the screening box (2), a spiral rod (11) is arranged inside the spiral feeding pipe (8), a first motor (12) is installed at a position of the spiral rod (11) on one side of the spiral feeding pipe (8), a second motor (13) is installed at a position of the stirring blade (7) on one side of the feeding hopper (6), the pelletizing component (4) comprises a control box (14), an electric adjustment rod (15) is installed on the outer side of the control box (14), a push plate (16) is arranged at the outer end of the electric adjustment rod (15), a pelletizing cylinder (17) is arranged on the outer side of the push plate (16), and rotating rods (18) are arranged at positions on both sides of the control box (14).

2. An extrusion granulator according to claim 1, characterized in that: A bearing (19) is mounted on the inner end of the rotating rod (18), a first gear (20) is mounted on the outer end of the rotating rod (18), the transmission component (5) comprises a fixing plate (21), a mounting plate (22) is arranged at a lower end of one side of the fixing plate (21), a third motor (23) is mounted on the upper side of the mounting plate (22), a second gear (24) is arranged at the inner end of the third motor (23), a transmission belt (25) is arranged on the outer side of the second gear (24), and a rotation hole (26) is opened on the outer side of the fixing plate (21).

3. An extrusion granulator according to claim 1, characterized in that: The lower end of the feeding hopper (6) is connected to the upper end of the granulation box (1), the lower end of the granulation box (1) is connected to the upper end of the screening box (2), the lower end of the screening box (2) is connected to the upper end of the slag box (3) through the filter screen (10), the lower end of the slag box (3) is connected to the input end of the spiral feed pipe (8), the output end of the spiral feed pipe (8) is connected to the input end of the circulation pipe (9), and the output end of the circulation pipe (9) is connected to the upper end of the feeding hopper (6).

4. An extrusion granulator according to claim 1, characterized in that: One end of the pelletizing component (4) is rotated to an inner position of the pelletizing box (1) via a rotating rod (18), the other end of the pelletizing component (4) is rotated to an inner position of the transmission component (5) via a rotating rod (18), and the push plate (16) slides to an outer position of the control box (14) via an electric adjustment rod (15).

5. An extrusion granulator according to claim 1, characterized in that: The stirring blade (7) is rotated at an internal position of the feeding hopper (6) by a second motor (13), and the spiral rod (11) is rotated at an internal position of the spiral feeding pipe (8) by a first motor (12).

6. An extrusion granulator according to claim 2, characterized in that: The rotating rod (18) rotates at an inner position of the rotating hole (26) via a bearing (19), and the rotating rod (18) rotates at an inner position of the granulation box (1) via a bearing (19).

7. An extrusion granulator according to claim 2, characterized in that: The first gear (20) is located at an inner side of the transmission belt (25), and the fixed plate (21) is fixed at a side of the granulation box (1).

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