High-quality pulp purification based on bio-enzyme pretreatment and energy-saving paper box forming device

The design of a double-layer filter cartridge and gear transmission assembly solves the problems of enzyme carrier and flocculent residue in pulp, improves the quality and uniformity of carton forming, and reduces water consumption.

CN224325619UActive Publication Date: 2026-06-05JINHUA JIUFENG PACKAGING MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINHUA JIUFENG PACKAGING MATERIALS CO LTD
Filing Date
2025-06-05
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing pulp purification and energy-saving carton forming equipment, a single slag remover cannot effectively remove residual enzyme carriers or unreacted flocculent matter from the enzyme treatment process, resulting in defects on the surface of the carton after forming.

Method used

The purification components include a double-layer filtration structure with an outer and inner filter cartridge, combined with gears and gear rings in the transmission assembly, to achieve pulp agitation and filtration, ensuring that impurities are effectively removed, and reducing water consumption through the return pipe.

Benefits of technology

It improves the quality of cardboard box forming, prevents surface defects, ensures uniform pulp and forming, and reduces water consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high quality paper pulp purification and energy -conserving carton forming device based on biological enzyme pretreatment belongs to paper pulp forming technical field. Including forming device body, still include: purification subassembly, purification subassembly is located one side of forming device body, and purification subassembly includes the slurry water tank of setting in one side of forming device body, is provided with outer filter bowl in the inside of slurry water tank, is provided with inner filter bowl in the inside of outer filter bowl, and the side of inner filter bowl is connected with feed inlet; Transmission assembly, transmission assembly is located the top of purification subassembly and is used for stirring the paper pulp in the inside of slurry water tank, through setting purification subassembly, the cooperation of outer filter bowl and inner filter bowl, the impurity of residual in paper pulp is filtered, prevents the impurity and enters the slurry pool of forming device, solved the problem that the enzyme preparation carrier or the incomplete reaction flocculate of possible existence in the enzyme treatment process in paper pulp, avoided the defect of carton surface forming, is favorable for the promotion paper box forming quality.
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Description

Technical Field

[0001] This utility model relates to the field of pulp forming technology, and in particular to a high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment. Background Technology

[0002] The high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment is a device that applies bio-enzyme technology to the pulp purification and carton forming process, aiming to improve pulp quality, reduce energy consumption, and achieve energy-saving carton production.

[0003] Existing pulp purification and energy-saving carton forming equipment purifies pulp pretreated with bio-enzymes through purification devices, removing incompletely reacted impurities and fine fibers from the pulp, thereby improving pulp quality and reducing surface defects after carton forming.

[0004] However, in practical applications, existing pulp purification and energy-saving carton forming equipment usually uses a single slag remover to filter impurities. However, after filtering the pulp, the pulp may still contain enzyme carriers or unreacted flocculent matter that may have been left over from the enzyme treatment process. These small impurities may cause defects on the surface of the carton after forming, which is not conducive to improving the quality of the carton forming.

[0005] To this end, this application provides a high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment to meet the demand. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment, comprising a forming device body, and further comprising:

[0008] A purification component is placed on one side of the molding device body. The purification component includes a slurry supply tank disposed on one side of the molding device body. An outer filter cylinder is disposed inside the slurry supply tank. An inner filter cylinder is disposed inside the outer filter cylinder. A feed inlet is connected to one side of the inner filter cylinder.

[0009] A transmission assembly is placed on top of the purification assembly and is used to stir the pulp inside the pulp supply tank. The transmission assembly includes an outer gear ring connected to one end of the outer filter cylinder and an inner gear ring connected to one end of the inner filter cylinder. A gear is drivingly connected between the outer gear ring and the inner gear ring.

[0010] Furthermore, a slurry tank is connected to the main body of the molding device, a water pump is connected to one side of the slurry supply tank, and a hose connects the water pump and the slurry tank.

[0011] The advantages of adopting the above-mentioned further solution are: it facilitates the connection between the pulp tank and the pulp supply tank, and ensures that the pulp supply tank continuously supplies pulp.

[0012] Furthermore, a motor is connected to one side of the slurry supply tank, and the output end of the motor is connected to a gear.

[0013] The advantages of adopting the above-mentioned further solution are: it facilitates the continuous rotation of the gear, driving the external gear ring and the internal gear ring to rotate, and the connection between the gear and the motor makes it easier to maintain the stability of the gear during rotation.

[0014] Furthermore, both the outer and inner filter cylinders are connected to sliders, and the outer filter cylinder is rotatably connected to the slurry supply tank and the inner filter cylinder through the sliders.

[0015] The beneficial effect of adopting the above-mentioned further solution is to ensure the rotational stability between the outer filter cartridge and the forming device body and the inner filter cartridge.

[0016] Furthermore, a sealing plate is provided between the feed inlet and the inner filter cylinder.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the sealing plate fills the gap between the feed inlet and the inner filter cylinder, preventing pulp from leaking out of the gap.

[0018] Furthermore, a limiting block is connected to the side of the feed inlet near the sealing plate, and the feed inlet is rotatably connected to the sealing plate through the limiting block.

[0019] The beneficial effects of adopting the above-mentioned further solution are: it helps to improve the stability between the outer filter cartridge and the inner filter cartridge, and at the same time, installing a sealing ring inside the groove helps to improve the sealing performance.

[0020] Furthermore, a return port is connected to one end of the inner filter cartridge near the slurry tank, and a return pipe connects the return port to the slurry tank.

[0021] The beneficial effect of adopting the above-mentioned further solution is that some of the filtrate after the slurry tank is used can be directly returned to the interior of the inner filter cylinder along the return pipe and return port, which helps to reduce the amount of new water replenishment and reduce water consumption.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] 1. By setting up a purification component, the outer filter cartridge and the inner filter cartridge work together to filter out the impurities remaining in the pulp, preventing the impurities from entering the pulp tank of the forming device. This solves the problem of residual enzyme carriers or incompletely reacted flocculent matter in the pulp that may exist during the enzyme treatment process, avoids defects on the surface of the carton after forming, and helps to improve the quality of carton forming.

[0024] 2. By setting up a transmission component, when the gear rotates, the outer gear ring and the inner gear ring will rotate in opposite directions. This rotation drives the outer filter cartridge and the inner filter cartridge to operate, so that the pulp and water flow are fully stirred and mixed, ensuring the uniformity of pulp mixing, thereby ensuring the uniformity of pulp forming and improving the forming quality. Attached Figure Description

[0025] Figure 1 This is a front view of the high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment according to this utility model;

[0026] Figure 2 This is a side sectional view of the purification component in the high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment of this utility model.

[0027] Figure 3 This is a structural diagram of the transmission component in the high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment of this utility model;

[0028] Figure 4 This is a split view of the inner filter cylinder in the high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment of this utility model.

[0029] Figure 5 This is a side sectional view of the pulp tank of the high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment according to this utility model.

[0030] Attached Figure

[0031] 1. The main body of the molding device;

[0032] 2. Purification component; 21. Slurry supply tank; 22. External filter cartridge; 23. Internal filter cartridge; 24. Feed inlet; 25. Return outlet; 26. Sliding block; 27. Sealing plate; 28. Limiting block; 29. ​​Return pipe;

[0033] 3. Transmission components; 31. External gear ring; 32. Internal gear ring; 33. Gear; 34. Motor;

[0034] 4. Water pump; 5. Hose; 6. Slurry tank. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] like Figures 1-5 As shown, this utility model provides a technical solution: a high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment, including a forming device body 1. The forming device body 1 consists of a forming system, a drying system, a water circulation system, and a control system. The forming system includes a mold, a forming cavity, and a vacuum system. Through vacuum adsorption, pulp fibers are adsorbed onto the surface of the mold to form a box-shaped wet blank. The drying system removes moisture from the wet blank to achieve a specified moisture content, improving hardness and strength, thus forming the carton. The water circulation system recovers wastewater from the forming process, which is then filtered, settled, and reused for pulping, improving environmental protection and saving water resources. The control system integrates electrical control and sensors (temperature, pressure, liquid level, etc.) to achieve automated operation, parameter adjustment, and fault alarm. It also includes:

[0037] like Figures 1-2 As shown, purification component 2 is placed on one side of the molding device body 1. Purification component 2 includes a slurry supply tank 21 disposed on one side of the molding device body 1. An outer filter cylinder 22 is disposed inside the slurry supply tank 21. An inner filter cylinder 23 is disposed inside the outer filter cylinder 22. A feed inlet 24 is connected to one side of the inner filter cylinder 23.

[0038] like Figures 1-3As shown, the transmission assembly 3 is placed on top of the purification assembly 2 and is used to stir the pulp inside the pulp supply tank 21. The transmission assembly 3 includes an external gear ring 31 connected to one end of the external filter cylinder 22 and an internal gear ring 32 connected to one end of the internal filter cylinder 23. A gear 33 is driven between the external gear ring 31 and the internal gear ring 32. By connecting the feed inlet 24 to the external slag discharge device, the pre-filtered pulp enters the interior of the internal filter cylinder 23 through the feed inlet 24. Water is then fed into the interior of the pulp supply tank 21 through the water inlet at the top of the pulp supply tank 21 to adjust the pulp concentration. During this process, the external filter cylinder 22 and the internal filter cylinder 23 cooperate to remove residual pulp. Impurities are filtered out to prevent them from entering the pulp tank 6 of the forming device. This solves the problem that enzyme carriers or unreacted flocculent matter that may remain inside the pulp after enzyme treatment could cause defects on the surface of the cardboard box after forming. This is beneficial to improving the quality of cardboard box forming. Furthermore, by rotating gear 33, which meshes between the outer gear ring 31 and the inner gear ring 32, the outer gear ring 31 and the inner gear ring 32 rotate in opposite directions when gear 33 rotates. The outer filter cylinder 22 and the inner filter cylinder 23 drive the pulp and water flow to stir and mix, ensuring uniform mixing of the pulp and thus ensuring the uniformity of pulp forming, which is beneficial to improving the forming quality.

[0039] Furthermore, such as Figure 1 As shown, a pulp tank 6 is connected to the main body 1 of the forming device, and a water pump 4 is connected to one side of the pulp supply tank 21. A hose 5 is connected between the water pump 4 and the pulp tank 6. By starting the water pump 4, the pulp in the pulp supply tank 21 is quickly transported to the inside of the pulp tank 6 along the hose 5, which facilitates the connection between the pulp tank 6 and the pulp supply tank 21 and ensures that the pulp supply tank 21 continuously supplies pulp.

[0040] Furthermore, such as Figure 2 As shown, a motor 34 is connected to one side of the slurry tank 21. The output end of the motor 34 is connected to the gear 33. The motor 34 is fixed to the outside of the slurry tank 21 by using a flange plate, and the gear 33 is fixed to the output end of the motor 34. When the motor 34 is started, the gear 33 can rotate continuously, driving the outer gear ring 31 and the inner gear ring 32 to rotate. The gear 33 is connected to the motor 34, which helps to maintain the stability of the gear 33 when rotating.

[0041] Furthermore, such as Figure 4As shown, both the outer filter cylinder 22 and the inner filter cylinder 23 are connected to sliders 26. The outer filter cylinder 22 is rotatably connected to the pulp supply tank 21 and the inner filter cylinder 23 through the sliders 26. By fixing an annular sealing shell inside the pulp supply tank 21, the sealing shell is installed on both sides of the outer filter cylinder 22, so that the two ends of the outer filter cylinder 22 are sealed to prevent pulp from entering the interior of the transmission component 3, thereby avoiding the influence of pulp on the transmission component 3. Furthermore, both the sealing shell and the outer filter cylinder 22 are provided with grooves that match the sliders 26. The sliders 26 slide inside the grooves to ensure the rotational stability between the outer filter cylinder 22 and the forming device body 1 and the inner filter cylinder 23.

[0042] Furthermore, such as Figure 4 As shown, a sealing plate 27 is provided between the feed inlet 24 and the inner filter cylinder 23. By installing the sealing plate 27 between the feed inlet 24 and the inner filter cylinder 23, the sealing plate 27 fills the gap between the feed inlet 24 and the inner filter cylinder 23, preventing pulp from leaking from the gap.

[0043] Furthermore, such as Figure 4 As shown, a limiting block 28 is connected to the side of the feed inlet 24 near the sealing plate 27. The feed inlet 24 is rotatably connected to the sealing plate 27 through the limiting block 28. By welding the limiting block 28 to the feed inlet 24 and opening a groove on the sealing plate 27 that matches the limiting block 28, the limiting block 28 is snapped into the inside of the groove and cooperates with the slider 26 to strengthen the connection between the inner filter cartridge 23 and the outer filter cartridge 22, which is beneficial to improving the stability between the outer filter cartridge 22 and the inner filter cartridge 23. At the same time, a sealing ring is installed inside the groove to improve the sealing performance.

[0044] Furthermore, such as Figure 2 and Figure 5 As shown, a return port 25 is connected to one end of the inner filter cylinder 23 near the pulp tank 6. A return pipe 29 connects the return port 25 and the pulp tank 6. By installing the return pipe 29 between the return port 25 and the pulp tank 6, and installing a water valve on the return pipe 29 and the pulp tank 6, the outer filter cylinder 22 and the inner filter cylinder 23 intercept suspended solids in the pulp. The filtered filtrate is cleaner, allowing some of the filtrate after the pulp tank 6 is used to flow directly back to the interior of the inner filter cylinder 23 along the return pipe 29 and the return port 25. This helps to reduce the amount of new water replenishment and reduce water consumption.

[0045] Working principle: such as Figures 1-5As shown, the control system is first started. External crushing devices break down recycled waste paper, wood pulp, or straw into pulp. In a closed enzymatic hydrolysis tank, the pulp-enzyme mixture reacts. Undecomposed impurities are then removed by a vibrating screen, followed by preliminary filtration using a slag remover. The filtered pulp is then fed into the inner filter cylinder 23 through inlet 24. Fresh water is injected into the pulp supply tank 21 from the top. The pulp concentration is adjusted, and the motor 34 is started. When the gear 33 rotates, the outer gear ring 31 and inner gear ring 32 rotate in opposite directions along the slide groove via slider 26. The outer filter cylinder 22 and inner filter cylinder 23 drive the pulp and water flow to mix, ensuring uniform mixing. Next, the water pump 4 is started, rapidly conveying the pulp from the pulp supply tank 21 to the pulp press via hose 5. Inside the pulp tank 6, during this process, the outer filter cartridge 22 and the inner filter cartridge 23 work together to filter out residual impurities in the pulp, preventing impurities from entering the pulp tank 6 of the forming device, which helps improve the quality of carton forming. At the same time, the sealing plate 27 and the limiting block 28 work together to prevent pulp leakage between the inner filter cartridge 23 and the feed port 24. Finally, the mold screen is immersed in the pulp tank 6, and the pulp fibers are attached to the mold surface by vacuum suction. At the same time, water is discharged through the mesh, forming a box-shaped wet blank. The drying system removes the water from the wet blank to reach the specified moisture content, improving hardness and strength, and forming the carton. However, the water valve installed between the pulp tank 6 and the return pipe 29 is opened, allowing the pulp to flow back to the inside of the inner filter cartridge 23 along the return pipe 29 through the height difference, which helps reduce the amount of new water replenishment.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-quality pulp purification and energy-saving carton forming device based on bio-enzyme pretreatment, comprising a forming device body (1), characterized in that, Also includes: Purification component (2), the purification component (2) is placed on one side of the molding device body (1), the purification component (2) includes a slurry supply tank (21) disposed on one side of the molding device body (1), an outer filter cylinder (22) is disposed inside the slurry supply tank (21), an inner filter cylinder (23) is disposed inside the outer filter cylinder (22), and a feed inlet (24) is connected to one side of the inner filter cylinder (23). The transmission assembly (3) is placed on top of the purification assembly (2) and is used to stir the pulp inside the pulp supply tank (21). The transmission assembly (3) includes an external toothed ring (31) connected to one end of the external filter cylinder (22) and an internal toothed ring (32) connected to one end of the internal filter cylinder (23). A gear (33) is connected between the external toothed ring (31) and the internal toothed ring (32).

2. The high-quality pulp purification and energy-saving cardboard box forming device based on bio-enzyme pretreatment according to claim 1, characterized in that, The molding device body (1) is connected to a slurry tank (6), and a water pump (4) is connected to one side of the slurry supply tank (21). A hose (5) is connected between the water pump (4) and the slurry tank (6).

3. The high-quality pulp purification and energy-saving cardboard box forming device based on bio-enzyme pretreatment according to claim 1, characterized in that, A motor (34) is connected to one side of the slurry tank (21), and the output end of the motor (34) is connected to a gear (33).

4. The high-quality pulp purification and energy-saving cardboard box forming device based on bio-enzyme pretreatment according to claim 1, characterized in that, Both the outer filter cylinder (22) and the inner filter cylinder (23) are connected to sliders (26). The outer filter cylinder (22) is rotatably connected to the slurry water tank (21) and the inner filter cylinder (23) through the sliders (26).

5. The high-quality pulp purification and energy-saving cardboard box forming device based on bio-enzyme pretreatment according to claim 1, characterized in that, A sealing plate (27) is provided between the feed inlet (24) and the inner filter cylinder (23).

6. The high-quality pulp purification and energy-saving cardboard box forming device based on bio-enzyme pretreatment according to claim 5, characterized in that, A limiting block (28) is connected to the side of the feed inlet (24) near the sealing plate (27), and the feed inlet (24) is rotatably connected to the sealing plate (27) through the limiting block (28).

7. The high-quality pulp purification and energy-saving cardboard box forming device based on bio-enzyme pretreatment according to claim 6, characterized in that, The inner filter cartridge (23) is connected to a return port (25) at one end near the slurry tank (6), and a return pipe (29) is connected between the return port (25) and the slurry tank (6).