High-efficiency paper mixing device

Abstract

The utility model discloses a high-efficiency paper mixing device which comprises a mixing tank, the side wall of the upper end of the mixing tank is provided with a pulp inlet and a paper inlet, and the lower end of the mixing tank is provided with a discharge port; the stirring mechanism comprises a central stirring shaft vertically arranged in the mixing tank and at least two groups of side stirring shafts uniformly distributed around the central stirring shaft, the central stirring shaft is positioned in the center of the mixing tank and is driven by a motor to rotate, and the side stirring shafts are in transmission connection with the central stirring shaft through a linkage mechanism; the rotating directions of the side stirring shafts and the central stirring shaft are opposite, a plurality of first stirring rods are arranged on the central stirring shaft in the vertical direction at intervals, and a plurality of second stirring rods are arranged on the side stirring shafts in the vertical direction at intervals; the multiple first stirring rods and the multiple second stirring rods are arranged in a staggered mode, shearing force can be formed between the first stirring rods and the second stirring rods, and the efficiency of smashing waste paper into pulp and evenly mixing the pulp with fresh fiber pulp can be improved.

Description

Technical Field

[0001] This utility model relates to the field of mixing device technology, specifically to a high-efficiency paper mixing device. Background Technology

[0002] Nonwoven fabric, also known as non-woven cloth, is made of oriented or randomly arranged fibers. It is typically produced by preparing fiber pulp from fresh fiber raw materials and then manufacturing the nonwoven fabric. Furthermore, because waste paper is rich in fiber, a certain proportion of waste paper is added to the fresh fiber pulp for mixing and stirring to reduce costs, thereby minimizing the input of fresh fiber raw materials.

[0003] In the prior art, a utility model with patent number "CN 221674027 U" discloses a slurry mixing device for nonwoven fabric production. This device includes a mixing tank, a first motor fixedly mounted on the top of the mixing tank, and a first gear fixedly connected to the output end of the first motor extending into the inner cavity of the mixing tank. Transmission rods are rotatably connected to the left and right sides of the top and bottom of the inner cavity of the mixing tank. A second gear is fixedly sleeved on the top of the outer side of each transmission rod. A second motor is fixedly mounted on the right side of the top of the mixing tank, and a first bevel gear is fixedly connected to the output end of the second motor. A lead screw is rotatably connected to the right side of the bottom of the inner cavity of the mixing tank. This utility model can improve the mixing effect of the slurry, avoid insufficient mixing that affects subsequent processing, improve the practicality of the device, and also allow for scraping and cleaning of the inside of the mixing tank, reducing slurry waste and improving the ease of cleaning the device.

[0004] Since the paper is directly added to the fiber pulp, it needs to be shredded before it can be evenly mixed with the fresh fiber pulp. In the aforementioned patent, the first motor drives the two transmission rods to rotate in the same direction through the meshing of the first and second gears. The stirring rods stir the paper, but the shredding force is not high, resulting in low efficiency in shredding the paper and then evenly mixing it with the fresh fiber pulp. Utility Model Content

[0005] To address the shortcomings of the existing technology, this invention proposes a high-efficiency paper mixing device.

[0006] To achieve the above-mentioned technical effects, the present invention adopts the following solution:

[0007] A high-efficiency paper mixing device, comprising:

[0008] A mixing tank, wherein a pulp inlet and a paper inlet are provided on the upper side wall of the mixing tank, and a discharge port is provided at the lower end of the mixing tank;

[0009] A stirring mechanism includes a central stirring shaft vertically disposed within a mixing tank and at least two sets of side stirring shafts evenly distributed around the central stirring shaft. The central stirring shaft is located at the center of the mixing tank and is driven to rotate by a motor. The side stirring shafts are connected to the central stirring shaft via a linkage mechanism and rotate in opposite directions to the central stirring shaft. A plurality of first stirring rods are spaced apart along the vertical direction on the central stirring shaft, and a plurality of second stirring rods are spaced apart along the vertical direction on the side stirring shafts.

[0010] Several first stirring rods and several second stirring rods are arranged alternately.

[0011] In a preferred embodiment, the linkage mechanism includes a central gear and a transmission gear. The central gear is fixedly mounted on a central stirring shaft, and a transmission gear is fixedly mounted on a side stirring shaft. The transmission gear meshes with the central gear.

[0012] In a preferred embodiment, the mixing tank is provided with a wall scraping mechanism, which includes a gear ring that rotates horizontally inside the mixing tank. The center of the gear ring coincides with the center stirring shaft. The gear ring surrounds the outside of the transmission gear and meshes with the transmission gear. A vertically arranged support rod is fixed on the gear ring, and a scraper is attached to the inner wall of the mixing tank on the support rod.

[0013] In a preferred embodiment, the mixing tank is equipped with a partition baffle. The partition baffle includes a central plate and an annular plate surrounding the central plate. The upper end of the central plate is fixedly connected to the top of the mixing tank via a vertical connecting rod. The central stirring shaft and the side stirring shaft are rotatably mounted on the central plate. The central gear and the transmission gear are both located above the central plate. The annular plate is fixed on the mixing tank. The slurry inlet, the paper inlet, and the scraper are all located below the annular plate. An annular gap is formed between the central plate and the annular plate. A rotating ring is fitted within the gap. The rotating ring matches a gear ring, which is fixedly located at the upper end of the rotating ring. The support rod is fixedly connected to the lower end of the rotating ring.

[0014] In a preferred embodiment, the mixing tank is provided with an exhaust port at its top.

[0015] Compared with existing technologies, the beneficial effects are:

[0016] This invention has a simple structure and is easy to use. The side stirring shaft, which is linked to the central stirring shaft, rotates in the opposite direction to the central stirring shaft. The first stirring rod on the central stirring shaft and the second stirring rod on the side stirring shaft are staggered, so that a shearing force can be formed between the first stirring rod and the second stirring rod, which can accelerate the pulverization of paper and has a strong mixing force, thereby improving the efficiency of pulverizing waste paper into pulp and uniformly mixing it with fresh fiber pulp. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the stirring mechanism in this utility model;

[0020] Figure 4 yes Figure 3 Another perspective structural diagram.

[0021] Figure 5 This is a top view of the partition baffle in this utility model.

[0022] Reference numerals: 1. Mixing tank; 2. Slurry inlet; 3. Paper inlet; 4. Discharge port; 5. Motor; 6. Exhaust port; 7. Central stirring shaft; 8. Side stirring shaft; 9. First stirring rod; 10. Second stirring rod; 11. Central plate; 12. Circular ring plate; 13. Central gear; 14. Transmission gear; 15. Gear ring; 16. Rotating ring; 17. Connecting rod; 18. Support rod; 19. Scraper; 20. Air hole; 21. Gap. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] A high-efficiency paper mixing device, comprising:

[0025] The mixing tank 1 has a pulp inlet 2 and a paper inlet 3 on the upper side wall, and a discharge port 4 at the lower end of the mixing tank 1, with a valve at the discharge port 4.

[0026] The stirring mechanism includes a central stirring shaft 7 vertically disposed inside the mixing tank 1 and at least two sets of side stirring shafts 8 evenly distributed around the central stirring shaft 7. The central stirring shaft 7 is located at the center of the mixing tank 1 and is driven to rotate by a motor 5. The side stirring shafts 8 are connected to the central stirring shaft 7 through a linkage mechanism and rotate in the opposite direction to the central stirring shaft 7. The central stirring shaft 7 is provided with a plurality of first stirring rods 9 spaced apart along the vertical direction, and the side stirring shafts 8 are provided with a plurality of second stirring rods 10 spaced apart along the vertical direction.

[0027] A plurality of first stirring rods 9 and a plurality of second stirring rods 10 are arranged alternately, and the second stirring rods 10 can rotate to be between two adjacent first stirring rods 9.

[0028] The prepared fresh limiting slurry is fed into the mixing tank 1 through the slurry inlet 2, and then the waste paper is fed into the mixing tank 1 through the paper inlet 3. Preferably, the paper inlet 3 can be connected to a screw conveyor to transport the paper.

[0029] Motor 5 drives the central stirring shaft 7 to rotate. The side stirring shaft 8, which is linked to the central stirring shaft 7, rotates in the opposite direction to the central stirring shaft 7. The first stirring rod 9 on the central stirring shaft 7 and the second stirring rod 10 on the side stirring shaft 8 are staggered, so that a shearing force can be formed between the first stirring rod 9 and the second stirring rod 10, which can accelerate the pulverization of paper and have a strong mixing force, thereby improving the efficiency of pulverizing waste paper into pulp and uniformly mixing it with fresh fiber pulp.

[0030] In a preferred embodiment, the linkage mechanism includes a central gear 13 and a transmission gear 14. The central gear 13 is fixedly mounted on the central stirring shaft 7, and the transmission gear 14 is fixedly mounted on the side stirring shaft 8. The transmission gear 14 is meshed with the central gear 13.

[0031] The central gear 13, which is fixed to the central stirring shaft 7, directly meshes with the transmission gear 14, which is fixed to the side stirring shaft 8, thereby causing the side stirring shaft 8 to rotate in the opposite direction to the central stirring shaft 7.

[0032] In a preferred embodiment, the mixing tank 1 is provided with a wall scraping mechanism, which includes a gear ring 15 that rotates horizontally inside the mixing tank 1. The center of the gear ring 15 coincides with the center stirring shaft 7. The gear ring 15 surrounds the outside of the transmission gear 14 and meshes with the transmission gear 14. A vertically arranged support rod 18 is fixed on the gear ring 15, and a scraper 19 attached to the inner wall of the mixing tank 1 is provided on the support rod 18.

[0033] The scraping mechanism scrapes the inner wall of the mixing tank 1 to prevent fiber pulp from adhering to the inner wall and facilitates cleaning of the inner wall of the mixing tank 1. The gear ring 15 is horizontally set and rotates under the drive of the transmission gear 14. The scraper 19, which is in contact with the inner wall of the mixing tank 1, is installed below the gear ring 15 through the support rod 18, so that the scraper 19 scrapes around the circumference of the mixing tank 1 under the drive of the rotation of the gear ring 15.

[0034] In a preferred embodiment, the mixing tank 1 is provided with a partition baffle. The partition baffle includes a central plate 11 located at the center and an annular plate 12 surrounding the central plate 11. The upper end of the central plate 11 is fixedly connected to the top of the mixing tank 1 via a vertical connecting rod 17. The central stirring shaft 7 and the side stirring shaft 8 are rotatably mounted on the central plate 11. The central gear 13 and the transmission gear 14 are both located above the central plate 11. The annular plate 12 is fixed on the mixing tank 1. The slurry inlet 2, the paper inlet 3, and the scraper 19 are all located below the annular plate 12. An annular gap 21 is formed between the central plate 11 and the annular plate 12. A rotating ring 16 is matched within the gap 21. The rotating ring 16 matches a gear ring 15. The gear ring 15 is fixedly located at the upper end of the rotating ring 16. The support rod 18 is fixedly connected to the lower end of the rotating ring 16.

[0035] In a preferred embodiment, the top of the mixing tank 1 is provided with an exhaust port 6, which facilitates the discharge of gas from the mixing tank 1, and a plurality of air holes 20 are provided on the center plate 11.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A high-efficiency paper mixing device, characterized in that, include: A mixing tank (1) is provided with a pulp inlet (2) and a paper inlet (3) on the upper side wall, and a discharge port (4) is provided at the lower end of the mixing tank (1). The stirring mechanism includes a central stirring shaft (7) vertically disposed in the mixing tank (1) and at least two sets of side stirring shafts (8) evenly distributed around the central stirring shaft (7). The central stirring shaft (7) is located at the center of the mixing tank (1) and is driven to rotate by a motor (5). The side stirring shafts (8) are connected to the central stirring shaft (7) through a linkage mechanism and rotate in the opposite direction to the central stirring shaft (7). A plurality of first stirring rods (9) are spaced apart along the vertical direction on the central stirring shaft (7), and a plurality of second stirring rods (10) are spaced apart along the vertical direction on the side stirring shafts (8). Several first stirring rods (9) and several second stirring rods (10) are arranged alternately.

2. The high-efficiency paper mixing device as described in claim 1, characterized in that, The linkage mechanism includes a central gear (13) and a transmission gear (14). The central gear (13) is fixedly installed on the central stirring shaft (7), and the transmission gear (14) is fixedly installed on the side stirring shaft (8). The transmission gear (14) meshes with the central gear (13).

3. The high-efficiency paper mixing device as described in claim 2, characterized in that, The mixing tank (1) is equipped with a wall scraping mechanism, which includes a gear ring (15) that rotates horizontally inside the mixing tank (1). The center of the gear ring (15) coincides with the center stirring shaft (7). The gear ring (15) surrounds the outside of the transmission gear (14) and meshes with the transmission gear (14). A vertically arranged support rod (18) is fixed on the gear ring (15). A scraper (19) attached to the inner wall of the mixing tank (1) is provided on the support rod (18).

4. The high-efficiency paper mixing device as described in claim 3, characterized in that, The mixing tank (1) is equipped with a partition baffle, which includes a central plate (11) located at the center and an annular plate (12) arranged around the central plate (11). The upper end of the central plate (11) is fixedly connected to the top of the mixing tank (1) by a vertical connecting rod (17). The central stirring shaft (7) and the side stirring shaft (8) are rotatably mounted on the central plate (11). The central gear (13) and the transmission gear (14) are both located above the central plate (11). The annular plate (12) is fixedly mounted on the central plate (11). Fixed on the mixing tank (1), the pulp inlet (2), paper inlet (3) and scraper (19) are all located below the annular plate (12). A circular gap (21) is formed between the center plate (11) and the annular plate (12). A rotating ring (16) is matched in the gap (21). The rotating ring (16) is matched with the toothed ring (15). The toothed ring (15) is fixedly set at the upper end of the rotating ring (16). The support rod (18) is fixedly connected to the lower end of the rotating ring (16).

5. The high-efficiency paper mixing device as described in claim 1, characterized in that, The mixing tank (1) is provided with an exhaust port (6) at the top.

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