A twin-disc refiner for papermaking

Abstract

The utility model provides a kind of double-disc pulping device of papermaking belongs to papermaking equipment technical field, to solve the raw material of existing papermaking pulping many contain interwoven fiber bundle, in the process of feeding, it is easy to form " agglomerate block " and be stuck in the inner wall of feed pipe, the pulp after grinding contains a large number of small fibers, easy to adhere to the inner wall of discharge passage Problem, including base, discharge port, discharge pipe, anti-blocking assembly and split cleaning assembly;Discharge port is fixedly connected above grinding chamber;Discharge pipe is arranged above discharge port;Anti-blocking assembly is arranged above grinding chamber;Split cleaning assembly is arranged above grinding chamber.The utility model is driven by the stirring cage rotation of feed pipe and discharge port place with the power of driving motor, guarantee smooth feeding and discharge stability, while using the detachable setting of discharge port and discharge pipe, discharge pipe can be conveniently disassembled to be thoroughly flushed, guarantee the continuous production of papermaking pulping link.

Description

Technical Field

[0001] This utility model belongs to the field of papermaking equipment technology, and more specifically, it relates to a double-disc pulping device for papermaking. Background Technology

[0002] The double-disc refiner is a core piece of equipment in the papermaking pulping process. It has two grinding discs, one of which is stationary and the other rotates at a higher speed. Each disc has two grinding blades. After the raw material enters the grinding chamber, it is continuously subjected to shearing and pressure between the two discs, thereby achieving the purpose of pulping. Existing double-disc refiners generally consist of a grinding zone composed of two grinding discs, a moving disc and a stationary disc, a power system that controls the rotation of the moving disc, a feed inlet and outlet, a disc spacing adjustment system, and a base and shell.

[0003] Existing application number: CN202420327715.7, this utility model relates to the field of double-disc refiner production technology, and discloses a novel double-disc refiner for papermaking machinery. It includes a base, a motor mounted on the right side of the base, the output shaft of the motor connected to a reducer, a double-disc refiner connected to the left side of the reducer, a feed hopper mounted on the left side of the double-disc refiner, and a control mechanism mounted inside the feed hopper. The control mechanism includes a worm gear, a worm shaft horizontally mounted on the top of the worm gear, a small motor mounted on the outside of the feed hopper, and a control cabinet mounted at the bottom of the small motor. The output end of the small motor meshes with the right side of the worm shaft via a helical gear. This novel double-disc refiner for papermaking machinery improves production efficiency through its control mechanism. The motor-driven worm gear allows for automatic control of the feed, achieving continuous and stable feed flow, reducing manual intervention, and thus improving production efficiency.

[0004] Based on the above, the raw materials for paper pulping, such as wood pulp and waste paper pulp, mostly contain interwoven fiber bundles. During the feeding process, these raw materials are prone to forming "agglomerates" due to the interlocking of fibers, which can get stuck on the inner wall of the feed pipe or in narrow places at the pipe opening, preventing the raw materials from falling continuously. Although the pulp after grinding is fluid, it contains a large number of fine fibers and has a certain viscosity. When it flows through the discharge pipe, the fibers are easy to adhere to the inner wall of the channel. Long-term accumulation will gradually reduce the effective flow cross-sectional area and further increase the flow resistance of the pulp. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a double-disc pulping device for papermaking. This addresses the issue that existing papermaking pulping raw materials, such as wood pulp and waste paper pulp, often contain interwoven fiber bundles. During the feeding process, these raw materials are prone to forming "agglomerates" due to fiber entanglement, which can become stuck on the inner wall of the feed pipe or in narrow sections of the pipe opening, preventing continuous flow. Furthermore, while the ground pulp is fluid, it contains a large number of fine fibers and has a certain viscosity. When flowing through the discharge pipe, these fibers easily adhere to the inner wall of the channel, and long-term accumulation gradually reduces the effective flow cross-sectional area, further increasing the pulp flow resistance.

[0006] The purpose and effectiveness of this utility model's double-disc pulping device for papermaking are achieved through the following specific technical means: A double-disc refining apparatus for papermaking includes a base, a drive motor, a transmission box, a grinding chamber, a feed pipe, a discharge port, a discharge pipe, a first transmission box, a second transmission box, an anti-clogging component, and a splitting and cleaning component. The drive motor is fixedly connected to the top of the base; the transmission box is fixedly connected to the top of the base; the grinding chamber is fixedly connected to the right side of the transmission box; the feed pipe is fixedly connected to the top of the grinding chamber; the discharge port is fixedly connected to the top of the grinding chamber; the discharge pipe is positioned above the discharge port; the first transmission box is fixedly connected inside the feed pipe; the second transmission box is fixedly connected inside the discharge port; the anti-clogging component is positioned above the grinding chamber; and the splitting and cleaning component is positioned above the grinding chamber.

[0007] Furthermore, the anti-clogging component includes: a drive shaft and a first active bevel gear; the drive shaft is coaxially fixedly connected to the end of the drive motor shaft; the first active bevel gear is coaxially fixedly connected to the outside of the drive shaft.

[0008] Furthermore, the anti-clogging component also includes: a fixed box, a first drive shaft, and a first driven bevel gear; the fixed box is fixedly connected to the top of the transmission box; the first drive shaft is rotatably connected inside the fixed box; the first driven bevel gear is coaxially fixedly connected to the bottom of the first drive shaft, and the first driven bevel gear meshes with the first driving bevel gear.

[0009] Furthermore, the anti-clogging component also includes: a second driving bevel gear, a connecting shaft, and a second driven bevel gear; the second driving bevel gear is coaxially fixedly connected to the top of the first transmission shaft; the connecting shaft is rotatably connected inside the first transmission box and the second transmission box; the second driven bevel gear is coaxially fixedly connected to the left end of the connecting shaft, and the second driven bevel gear meshes with the second driving bevel gear.

[0010] Furthermore, the anti-clogging component also includes: a transmission worm, a stirring cage, and a transmission worm wheel; two transmission worms are provided, and the two transmission worms are coaxially fixedly connected to the outside of the connecting shaft; two stirring cages are provided, and the bottoms of the two stirring cages are rotatably connected to the inside of the first transmission box and the second transmission box, respectively; two transmission worm wheels are provided, and the two transmission worm wheels are coaxially fixedly connected to the bottoms of the two stirring cages, and the two transmission worm wheels mesh with the two transmission worms, respectively.

[0011] Furthermore, the disassembly and cleaning components include: connecting flanges, fixing holes, and plug-in blocks; two connecting flanges are provided, which are fixedly connected to the top of the discharge port and the bottom of the discharge pipe, respectively, and the bottom connecting flange has two square slots inside; multiple fixing holes are provided, which are respectively opened inside the two connecting flanges; two plug-in blocks are provided, which are fixedly connected to the top connecting flange, and the two plug-in blocks are respectively inserted into the two square slots of the bottom connecting flange.

[0012] Compared with the prior art, the present invention has the following beneficial effects: First, by incorporating anti-clogging components, the drive motor rotates two agitators at the feed pipe and discharge port. The agitator in the feed pipe breaks up fiber clumps in the raw material, preventing them from getting stuck in the pipe and ensuring a continuous and smooth flow of the raw material. The agitators at the discharge port and in the discharge pipe promote the flow of viscous slurry, reducing fiber adhesion and accumulation on the inner wall of the pipe, while balancing the flow resistance within the pipe to ensure stable slurry discharge. Secondly, the discharge mechanism consists of two parts: the discharge port and the discharge pipe. When the material adhering to the discharge port or the discharge pipe sticks to the pipe wall after cooling, the discharge pipe can be quickly removed by simply unscrewing the fixing bolts of the connecting flange. This allows for a thorough cleaning of the inner wall of the pipe, solving the problems of difficult cleaning and the need to disassemble a large number of parts in traditional integrated discharge structures. The cooperation between the plug block and the square slot can quickly achieve precise alignment between the discharge pipe and the discharge port after cleaning, simplifying the assembly process and significantly reducing downtime for cleaning.

[0013] This invention utilizes a drive motor to rotate the agitator at the feed pipe and discharge port, ensuring smooth feeding and stable discharge. Simultaneously, the detachable design of the discharge port and discharge pipe allows for easy disassembly and thorough cleaning of the discharge pipe. Overall, it optimizes the core performance of the double-disc refiner in terms of both preventing blockages and facilitating cleaning, reducing the manpower and time costs of equipment maintenance, ensuring continuous production in the paper pulping process, and minimizing production interruptions due to equipment failure. This lays the foundation for improving pulping efficiency and stabilizing product quality in the paper industry. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the feed pipe structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the connecting shaft structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the stirring cage structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the discharge pipe structure of this utility model.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Base; 2. Drive motor; 201. Drive shaft; 202. First driving bevel gear; 3. Transmission box; 301. Fixing box; 4. Grinding chamber; 5. Feed pipe; 6. Discharge port; 7. Discharge pipe; 8. First transmission shaft; 801. First driven bevel gear; 802. Second driving bevel gear; 9. First transmission box; 10. Second transmission box; 11. Connecting shaft; 1101. Second driven bevel gear; 1102. Transmission worm gear; 12. Stirring cage; 1201. Transmission worm wheel; 13. Connecting flange; 1301. Fixing hole; 14. Insertion block. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] Example 1: As attached Figure 1 To be continued Figure 5 As shown: This utility model provides a double-disc pulping device for papermaking, including a base 1, a drive motor 2, a transmission box 3, a grinding chamber 4, a feed pipe 5, a discharge port 6, a discharge pipe 7, a first transmission box 9, a second transmission box 10, and an anti-clogging component; the drive motor 2 is fixedly connected above the base 1; the transmission box 3 is fixedly connected above the base 1; the grinding chamber 4 is fixedly connected to the right side of the transmission box 3; the feed pipe 5 is fixedly connected above the grinding chamber 4; the discharge port 6 is fixedly connected above the grinding chamber 4; the discharge pipe 7 is located above the discharge port 6; the first transmission box 9 is fixedly connected inside the feed pipe 5; the second transmission box 10 is fixedly connected inside the discharge port 6; and the anti-clogging component is located above the grinding chamber 4.

[0022] The anti-clogging component includes a drive shaft 201 and a first active bevel gear 202. The drive shaft 201 is coaxially fixedly connected to the end of the drive motor 2 shaft. The first active bevel gear 202 is coaxially fixedly connected to the outside of the drive shaft 201.

[0023] The anti-clogging component also includes: a fixed box 301, a first drive shaft 8, and a first driven bevel gear 801; the fixed box 301 is fixedly connected above the transmission box 3; the first drive shaft 8 is rotatably connected inside the fixed box 301; the first driven bevel gear 801 is coaxially fixedly connected to the bottom of the first drive shaft 8, and the first driven bevel gear 801 meshes with the first driving bevel gear 202.

[0024] The anti-clogging component also includes: a second driving bevel gear 802, a connecting shaft 11, and a second driven bevel gear 1101; the second driving bevel gear 802 is coaxially fixedly connected to the top of the first transmission shaft 8; the connecting shaft 11 is rotatably connected inside the first transmission box 9 and the second transmission box 10; the second driven bevel gear 1101 is coaxially fixedly connected to the left end of the connecting shaft 11, and the second driven bevel gear 1101 meshes with the second driving bevel gear 802.

[0025] The anti-clogging component also includes: a transmission worm gear 1102, a stirring cage 12, and a transmission worm wheel 1201; two transmission worm gears 1102 are provided, and the two transmission worm gears 1102 are coaxially fixedly connected to the outside of the connecting shaft 11; two stirring cages 12 are provided, and the bottoms of the two stirring cages 12 are rotatably connected to the inside of the first transmission box 9 and the second transmission box 10, respectively; two transmission worm wheels 1201 are provided, and the two transmission worm wheels 1201 are coaxially fixedly connected to the bottoms of the two stirring cages 12, and the two transmission worm wheels 1201 mesh with the two transmission worm gears 1102, respectively.

[0026] The specific usage and function of this embodiment are as follows: During grinding, the drive motor 2 drives the drive shaft 201 to rotate. While the drive shaft 201 drives the grinding disc in the grinding chamber 4 to rotate, it also drives the first transmission shaft 8 to rotate through the bevel gear transmission mechanism formed by the meshing of the first driven bevel gear 801 and the first driving bevel gear 202. The first transmission shaft 8 drives the connecting shaft 11 to rotate through the bevel gear transmission mechanism formed by the meshing of the second driven bevel gear 1101 and the second driving bevel gear 802. The connecting shaft 11 drives the two stirring cages 12 to rotate synchronously through the worm gear transmission mechanism formed by the meshing of two transmission worms 1102 and two transmission worm wheels 1201 respectively. The spiral directions of the two stirring cages 12 are set in opposite directions, so that the raw material feeding in the feed pipe 5 is smoother, and the pulp discharge in the discharge port 6 and the discharge pipe 7 is also smoother, avoiding blockage.

[0027] Example 2: Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 5 As shown, it also includes a splitting and cleaning component, which is located above the grinding chamber 4.

[0028] The disassembly and cleaning assembly includes: a connecting flange 13, fixing holes 1301, and plug-in blocks 14; two connecting flanges 13 are provided, which are fixedly connected to the top of the discharge port 6 and the bottom of the discharge pipe 7 respectively, and the bottom connecting flange 13 has two square slots inside; multiple fixing holes 1301 are provided, which are respectively opened inside the two connecting flanges 13; two plug-in blocks 14 are provided, which are fixedly connected to the upper connecting flange 13 respectively, and the two plug-in blocks 14 are respectively inserted into the two square slots of the bottom connecting flange 13.

[0029] The specific usage and function of this embodiment: The discharge mechanism of the grinding chamber 4 is composed of discharge port 6 and discharge pipe 7. The discharge port 6 and discharge pipe 7 are fixed by two connecting flanges 13 and bolts inside the fixing hole 1301. When the discharge mechanism is blocked, the bolts inside the two connecting flanges 13 can be removed and the discharge pipe 7 can be taken up to facilitate flushing inside the discharge pipe 7. After flushing and cleaning, the insertion block 14 inside the connecting flange 13 at the bottom of the discharge pipe 7 is aligned with the square slot inside the connecting flange 13 and inserted to complete the initial positioning of the two connecting flanges 13, which facilitates the subsequent insertion of fixing bolts into the fixing hole 1301.

[0030] The following points should be noted in this article: 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0031] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0032] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A double-disc pulping device for papermaking, comprising a base (1), a drive motor (2), a transmission box (3), a grinding chamber (4), a feed pipe (5), a discharge port (6), a discharge pipe (7), a first transmission box (9), a second transmission box (10), an anti-clogging component, and a disassembly and cleaning component; wherein the drive motor (2) is fixedly connected above the base (1); characterized in that: The transmission box (3) is fixedly connected above the base (1); the grinding chamber (4) is fixedly connected to the right side of the transmission box (3); the feed pipe (5) is fixedly connected above the grinding chamber (4); the discharge port (6) is fixedly connected above the grinding chamber (4); the discharge pipe (7) is located above the discharge port (6); the first transmission box (9) is fixedly connected inside the feed pipe (5); the second transmission box (10) is fixedly connected inside the discharge port (6); the anti-clogging component is located above the grinding chamber (4); the splitting and cleaning component is located above the grinding chamber (4).

2. The double-disc refining apparatus for papermaking as described in claim 1, characterized in that: The anti-clogging component includes a drive shaft (201) and a first active bevel gear (202); the drive shaft (201) is coaxially fixedly connected to the shaft end of the drive motor (2); the first active bevel gear (202) is coaxially fixedly connected to the outside of the drive shaft (201).

3. The double-disc refining apparatus for papermaking as described in claim 2, characterized in that: The anti-clogging component also includes: a fixed box (301), a first drive shaft (8) and a first driven bevel gear (801); the fixed box (301) is fixedly connected above the transmission box (3); the first drive shaft (8) is rotatably connected inside the fixed box (301); the first driven bevel gear (801) is coaxially fixedly connected to the bottom of the first drive shaft (8), and the first driven bevel gear (801) meshes with the first driving bevel gear (202).

4. The double-disc refining apparatus for papermaking as described in claim 3, characterized in that: The anti-clogging component further includes: a second driving bevel gear (802), a connecting shaft (11), and a second driven bevel gear (1101); the second driving bevel gear (802) is coaxially fixedly connected to the top of the first transmission shaft (8); the connecting shaft (11) is rotatably connected to the inside of the first transmission box (9) and the second transmission box (10); the second driven bevel gear (1101) is coaxially fixedly connected to the left end of the connecting shaft (11), and the second driven bevel gear (1101) meshes with the second driving bevel gear (802).

5. The double-disc refining apparatus for papermaking as described in claim 4, characterized in that: The anti-clogging component also includes: a transmission worm (1102), a stirring cage (12), and a transmission worm wheel (1201); two transmission worms (1102) are provided, and the two transmission worms (1102) are coaxially fixedly connected to the outside of the connecting shaft (11); two stirring cages (12) are provided, and the bottoms of the two stirring cages (12) are rotatably connected to the inside of the first transmission box (9) and the second transmission box (10); two transmission worm wheels (1201) are provided, and the two transmission worm wheels (1201) are coaxially fixedly connected to the bottoms of the two stirring cages (12), and the two transmission worm wheels (1201) mesh with the two transmission worms (1102).

6. The double-disc refining apparatus for papermaking as described in claim 1, characterized in that: The disassembly and cleaning assembly includes: a connecting flange (13), a fixing hole (1301), and a plug-in block (14); two connecting flanges (13) are provided, and the two connecting flanges (13) are respectively fixedly connected to the top of the discharge port (6) and the bottom of the discharge pipe (7), and the bottom connecting flange (13) has two square slots inside; multiple fixing holes (1301) are provided, and the multiple fixing holes (1301) are respectively opened inside the two connecting flanges (13); two plug-in blocks (14) are provided, and the two plug-in blocks (14) are respectively fixedly connected to the upper connecting flange (13), and the two plug-in blocks (14) are respectively inserted into the two square slots of the bottom connecting flange (13).

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