Pulp washing water-saving structure
By designing a water-saving washing structure that includes a shell, inlet pipe, outlet pipe, drive motor, and filter cartridge, the structure utilizes centrifugal force to remove water and automatically clean impurities, thus solving the problems of high equipment complexity and high cost, and achieving low-cost water resource recycling and simplified equipment maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN QINGSHAN PAPER INDUSTRY CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-28
AI Technical Summary
Existing water-saving pulp washing structures are complex and costly to integrate in practical applications, and require advanced operating skills, which limits their adoption by small and medium-sized paper mills.
Design a structure including a shell, inlet pipe, outlet pipe, drive motor, rotating shaft and filter cartridge, which uses centrifugal force to throw out water and recycle it, and combines hydraulic telescopic rod and rubber ring to automatically clean impurities, simplifying the equipment structure and reducing maintenance costs.
It achieves water resource recycling with simple structure and low cost, reduces equipment integration and maintenance costs, and is suitable for promotion by small and medium-sized paper manufacturing enterprises.
Smart Images
Figure CN224173109U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water-saving technology in pulp washing, and specifically relates to a water-saving structure for pulp washing. Background Technology
[0002] Water-saving pulp washing structures are technical systems or equipment structures designed in the paper industry to reduce water consumption and improve water use efficiency. Their core lies in optimizing the pulp washing process, equipment configuration, and process parameters to achieve the recycling of washing water and efficient washing. By optimizing the process, reducing waste, and improving efficiency, they not only lower production costs but also significantly reduce environmental pollution, making them one of the key technologies for the sustainable development of the paper industry.
[0003] Current water-saving pulp washing structures face the dual challenges of high equipment integration complexity and high cost in practical applications. Furthermore, because water-saving technologies require highly skilled operators, companies also need to bear additional technical training and maintenance costs. This overall cost pressure limits their large-scale promotion in small and medium-sized paper mills. Utility Model Content
[0004] The purpose of this utility model is to provide a water-saving structure for washing pulp, which aims to solve the dual challenges of high equipment integration complexity and high cost faced by existing water-saving structures for washing pulp in practical applications.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a water-saving washing structure, comprising a shell, an inlet pipe, and an outlet pipe, wherein a delivery cylinder is connected through the upper surface of the shell, an inlet pipe is connected through the side surface of the delivery cylinder, and an outlet pipe is connected through the bottom side of the shell.
[0006] A drive motor is installed at the bottom of the housing, and a rotating shaft is connected to the output end of the drive motor. A first sealed bearing connected inside the housing is connected through the rotating shaft. A filter cartridge connected to the end of the rotating shaft is provided inside the housing, and a docking cover that covers the bottom of the infusion cylinder is connected to the top of the filter cartridge.
[0007] As a preferred embodiment of the water-saving structure for washing pulp according to this utility model, the filter cylinder and the docking cover are located directly below the infusion cylinder, and the inner wall diameter of the filter cylinder is the same as the inner wall diameter of the infusion cylinder.
[0008] In a preferred embodiment of the water-saving washing structure of this utility model, the rotating shaft and the center line of the filter cylinder are at the same position, and the drive motor, the rotating shaft and the filter cylinder constitute a drive structure.
[0009] As a preferred embodiment of the water-saving structure for washing pulp according to this utility model, the top of the infusion cylinder is connected to a bracket, the top of the bracket is equipped with a telescopic rod, and the end of the telescopic rod is sleeved with a second sealed bearing. The second sealed bearing is fitted into a support plate located inside the filter cylinder.
[0010] As a preferred embodiment of the water-saving structure for washing pulp according to this utility model, the pallet forms a rotating structure with the telescopic end of the telescopic rod through the second sealed bearing, and the telescopic rod forms a lifting structure with the pallet through the second sealed bearing.
[0011] As a preferred embodiment of the water-saving structure for washing pulp according to this utility model, a rubber ring is connected to the outer surface of the tray, and the outer wall size of the rubber ring matches the inner wall size of the filter cartridge.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention uses a drive motor to drive a rotating shaft to rotate the filter cartridge at high speed. Centrifugal force is used to throw water onto the outer wall and drop it to the bottom of the shell. After the water is collected in the water collection tank, it is discharged through the liquid outlet pipe for recycling. The structure is simple, the water-saving cost is low, and the maintenance cost is low.
[0014] In this invention, after the hydraulic telescopic rod is activated, it pushes the tray upward through the second sealed bearing. The rubber ring on its surface scrapes the inner wall of the filter cartridge, thereby removing impurities and collecting them on the surface of the tray. After the impurities rise with the tray to the cleaning window of the bracket, the filter cartridge's filtration efficiency is restored through backwashing or manual cleaning, which facilitates automatic cleaning of impurities and avoids the separation of water and impurities. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the structure of this utility model from below;
[0018] Figure 3 This is a first sectional view of the internal structure of this utility model;
[0019] Figure 4 This is a second sectional view of the internal structure of this utility model;
[0020] Figure 5 This is a third sectional view of the internal structure of this utility model;
[0021] Figure 6This is a schematic diagram of the connection structure between the tray and the rubber ring of this utility model.
[0022] In the diagram: 1. Shell; 2. Infusion cylinder; 3. Inlet pipe; 4. Outlet pipe; 5. Drive motor; 6. Rotating shaft; 7. First sealed bearing; 8. Filter cartridge; 9. Docking cover; 10. Support; 11. Telescopic rod; 12. Second sealed bearing; 13. Support plate; 14. Rubber ring. 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. 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.
[0024] Please see Figures 1-6 The present invention provides the following technical solution: a water-saving structure for washing pulp, including a shell 1, an inlet pipe 3 and an outlet pipe 4, wherein an inlet cylinder 2 is connected through the upper surface of the shell 1, an inlet pipe 3 is connected through the side surface of the inlet cylinder 2, and an outlet pipe 4 is connected through the bottom side of the shell 1.
[0025] A drive motor 5 is installed at the bottom of the housing 1. The output end of the drive motor 5 is connected to a rotating shaft 6. The rotating shaft 6 is connected through a first sealed bearing 7 inside the housing 1. The housing 1 is provided with a filter cartridge 8 connected to the end of the rotating shaft 6. The top of the filter cartridge 8 is connected to a docking cover 9 that covers the bottom of the infusion cylinder 2.
[0026] Preferably, the filter cartridge 8 and the docking cover 9 are located directly below the infusion cylinder 2, and the inner wall diameter of the filter cartridge 8 is the same as the inner wall diameter of the infusion cylinder 2.
[0027] In practical use, the wastewater from washing pulp can enter the interior of the inlet cylinder 2 through the inlet pipe 3, and the wastewater inside the inlet cylinder 2 can enter the filter cylinder 8 through the docking cover 9.
[0028] Preferably, the center line of the rotating shaft 6 and the filter cartridge 8 are at the same position, and the drive motor 5, the rotating shaft 6 and the filter cartridge 8 constitute the drive structure.
[0029] In practical use, when the drive motor 5 is running, it can drive the rotating shaft 6 to rotate inside the first sealed bearing 7. When the rotating shaft 6 rotates, it can drive the filter cartridge 8 to rotate. Thus, the centrifugal force generated by the rotation of the filter cartridge 8 can throw the water in the wastewater out of the filter holes of the filter cartridge 8, while the impurities in the wastewater will remain in the filter cartridge 8.
[0030] Preferably, the top of the infusion cylinder 2 is connected to a bracket 10, the top of the bracket 10 is equipped with a telescopic rod 11, the end of the telescopic rod 11 is sleeved with a second sealing bearing 12, and the second sealing bearing 12 is fitted into a support plate 13 located inside the filter cylinder 8.
[0031] Preferably, the pallet 13 forms a rotating structure with the telescopic end of the telescopic rod 11 via the second sealed bearing 12, and the telescopic rod 11 forms a lifting structure with the pallet 13 via the second sealed bearing 12.
[0032] Preferably, a rubber ring 14 is connected to the outer surface of the tray 13, and the outer wall size of the rubber ring 14 matches the inner wall size of the filter cartridge 8.
[0033] In actual use, when the telescopic rod 11 retracts, it can drive the tray 13 to move upward. The upward movement of the tray 13 can scrape off the impurities on the inner wall of the filter cylinder 8 through the rubber ring 14 and move upward.
[0034] Working principle: When using this water-saving pulp washing structure, firstly, the connecting pipe is tightly connected to the flange end face of the inlet pipe 3, and the seal is ensured by tightening the bolts, allowing the pulp washing wastewater to flow smoothly into the delivery cylinder 2 under pressure along the inlet pipe 3. At this time, the wastewater is injected into the filter cylinder 8 through the bottom of the delivery cylinder 2. Then, the drive motor 5 is started, and its output shaft is rigidly connected to the rotating shaft 6 via a coupling, driving the filter cylinder 8 to rotate at a preset speed. Under the action of centrifugal force, the water in the wastewater is thrown towards the outer wall of the filter cylinder 8 due to density difference and falls to the bottom of the shell 1. After being collected in the water collection tank, it is discharged through the outlet pipe 4, realizing the recycling of water resources.
[0035] When a lot of impurities accumulate on the inner wall of the filter cartridge 8 due to long-term operation, the hydraulic telescopic rod 11 can be activated. Its telescopic end pushes the support plate 13 upward through the second sealed bearing 12. The wear-resistant rubber ring 14 connected to the surface of the support plate 13 maintains a small gap with the inner wall of the filter cartridge 8. During the upward movement, the elastic deformation scrapes the inner wall, peeling off the attached impurities and collecting them on the surface of the support plate 13. When the impurities rise with the support plate 13 to the cleaning window of the bracket 10, the backwash nozzle can be turned on or the area can be cleaned manually to thoroughly remove the scale and restore the filtration efficiency of the filter cartridge 8.
[0036] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A water-saving structure for washing pulp, comprising a shell (1), an inlet pipe (3), and an outlet pipe (4), characterized in that: The upper surface of the housing (1) is connected to the infusion cylinder (2), the side surface of the infusion cylinder (2) is connected to the inlet pipe (3), and the bottom side of the housing (1) is connected to the outlet pipe (4). A drive motor (5) is installed at the bottom of the housing (1). The output end of the drive motor (5) is connected to a rotating shaft (6). The rotating shaft (6) is connected through a first sealed bearing (7) inside the housing (1). The housing (1) is provided with a filter cartridge (8) connected to the end of the rotating shaft (6). The top of the filter cartridge (8) is connected to a docking cover (9) that covers the bottom of the infusion cylinder (2).
2. The water-saving structure for washing pulp according to claim 1, characterized in that: The filter cartridge (8) and the docking cover (9) are located directly below the infusion cylinder (2), and the inner wall diameter of the filter cartridge (8) is the same as the inner wall diameter of the infusion cylinder (2).
3. The water-saving structure for washing pulp according to claim 1, characterized in that: The center line of the rotating shaft (6) and the filter cartridge (8) are at the same position, and the drive motor (5), the rotating shaft (6) and the filter cartridge (8) constitute a drive structure.
4. The water-saving structure for washing pulp according to claim 1, characterized in that: The top of the infusion cylinder (2) is connected to a bracket (10), and a telescopic rod (11) is installed on the top of the bracket (10). The end of the telescopic rod (11) is sleeved with a second sealed bearing (12), which is fitted into a support plate (13) located inside the filter cylinder (8).
5. The water-saving structure for washing pulp according to claim 4, characterized in that: The pallet (13) forms a rotating structure with the telescopic end of the telescopic rod (11) via the second sealed bearing (12), and the telescopic rod (11) forms a lifting structure with the pallet (13) via the second sealed bearing (12).
6. The water-saving structure for washing pulp according to claim 5, characterized in that: A rubber ring (14) is connected to the outer surface of the tray (13), and the outer wall size of the rubber ring (14) matches the inner wall size of the filter cartridge (8).