Papermaking wastewater treatment device

Abstract

The utility model relates to the field of wastewater treatment, and discloses a papermaking wastewater treatment device which comprises a treatment tank, a filter box is fixedly connected to the top of the treatment tank, a liquid inlet and outlet assembly is arranged on the outer wall of the treatment tank, a plurality of sliding grooves are formed in the filter box, and a filter screen is slidably connected to the interior of the filter box. Limiting blocks are fixedly connected to the two sides of the filter screen, a barrier plate is fixedly connected to one side of the filter screen, a plurality of handles are fixedly connected to one side of the barrier plate, a plurality of butt joint blocks are fixedly connected to one side of the barrier plate, and a plurality of fixing assemblies are arranged in each butt joint block. According to the papermaking wastewater treatment device disclosed by the utility model, the handle is firstly held to be pulled out, so that the filter screen is detached from the interior of the filter box, the effect of easily detaching and replacing the filter screen is achieved, the problem that the filter screen can be detached and then replaced by complicated operation is avoided, and the high efficiency of the papermaking wastewater treatment device is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, and in particular to a papermaking wastewater treatment device. Background Technology

[0002] Papermaking wastewater treatment equipment is a device or system that uses physical, chemical, or biological methods to separate, purify, and recycle wastewater containing large amounts of suspended solids, organic matter, pigments, and heavy metals generated during the papermaking process, enabling it to meet discharge standards or reuse requirements. Using papermaking wastewater treatment equipment is not only to meet the mandatory requirements of environmental regulations and avoid penalties for illegal discharges, but also to reduce wastewater pollution of water bodies, soil, and groundwater, protecting the ecological environment and human health. Simultaneously, the treatment equipment enables water resource reuse and by-product recovery, reducing operating costs, enhancing corporate image, and helping companies achieve sustainable development in industry competition.

[0003] Existing papermaking wastewater treatment devices comprehensively utilize physical, chemical, and biological principles. Through physical means such as filtration, sedimentation, and centrifugation, large suspended particles are separated. Chemical agents are used for coagulation, oxidation-reduction, and neutralization reactions to change the properties of pollutants, causing them to precipitate or decompose. The metabolic activities of aerobic and anaerobic microorganisms degrade organic matter and nitrogen and phosphorus. For recalcitrant pollutants, advanced treatment technologies such as membrane separation, advanced oxidation, and adsorption are used to further purify the water quality. The synergistic effect of multiple processes enables wastewater to meet discharge standards or be reused.

[0004] In the actual operation of papermaking wastewater treatment equipment, the filter screen, as a core filtration component, directly affects the overall treatment efficiency of the equipment due to its ease of maintenance. However, existing equipment generally suffers from complex filter screen disassembly and replacement processes. Most equipment uses bolt-fixed or snap-fit ​​structures to embed the filter screen into the treatment chamber. Operators need to carry tools such as wrenches and screwdrivers to disassemble the equipment shell, guardrails, and other auxiliary parts layer by layer to reach the filter screen installation position. For multi-layer composite filters or integrated filter modules, it is even necessary to completely disassemble the treatment unit. The entire process can take up to several hours. Frequent disassembly can also lead to wear of equipment seals and loosening of pipe interfaces, increasing the risk of leakage. In addition, some equipment does not have a filter screen status monitoring system. Operators cannot judge the degree of filter screen blockage through real-time data. Often, it is necessary to stop the machine and open the cover to check to confirm whether replacement is needed, further extending non-operating time. These problems not only lead to high equipment maintenance costs, but also cause wastewater treatment process interruption due to shutdown for maintenance, resulting in wastewater accumulation at the front end and fluctuations in the treatment load at the back end. This seriously restricts the continuous and efficient operation of the equipment. The problem of high filter screen blockage frequency is particularly prominent in high-concentration wastewater treatment scenarios. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a papermaking wastewater treatment device, which aims to improve the problem that requires complicated operations to remove and replace the filter screen during equipment use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a papermaking wastewater treatment device, comprising a treatment tank, a filter box fixedly connected to the top of the treatment tank, an inlet / outlet liquid assembly provided on the outer wall of the treatment tank, multiple sliding grooves opened inside the filter box, a filter screen slidably connected inside the filter box, limit blocks fixedly connected to both sides of the filter screen, a baffle plate fixedly connected to one side of the filter screen, multiple handles fixedly connected to one side of the baffle plate, and multiple docking blocks fixedly connected to one side of the baffle plate, each docking block having multiple fixing components inside;

[0007] Each of the fixing components includes a fixing pin, a limiting plate, and multiple springs. The outer wall of each fixing pin is slidably connected to the inside of the docking block. The inner wall of each limiting plate is fixedly connected to the outer wall of the fixing pin. Each spring is disposed inside the docking block. One end of each spring is fixedly connected to the inside of the docking block, and the other end of each spring is fixedly connected to the top of the fixing pin.

[0008] As a further description of the above technical solution:

[0009] The liquid inlet / outlet assembly includes an inlet pipe, an outlet pipe, and an inlet pipe. The outer wall of the inlet pipe is fixedly connected to the top of the treatment tank, the outer wall of the outlet pipe is fixedly connected to the bottom of the treatment tank, and the outer wall of the inlet pipe is fixedly connected to the top of the filter box.

[0010] As a further description of the above technical solution:

[0011] An inlet pipe is fixedly connected to the outer wall of the treatment tank, and a sliding sleeve is slidably connected to the outer wall of the inlet pipe.

[0012] As a further description of the above technical solution:

[0013] A fixing ring is fixedly connected to the outer wall of the inlet pipe, and the inner wall of the sliding sleeve is slidably connected to the outer wall of the fixing ring.

[0014] As a further description of the above technical solution:

[0015] A second spring is provided inside the sliding sleeve. One end of the second spring is fixedly connected inside the sliding sleeve, and the other end of the second spring is fixedly connected to one side of the fixed ring.

[0016] As a further description of the above technical solution:

[0017] The inlet pipe has multiple ball bearings slidably connected inside, and multiple moving grooves are opened inside the inlet pipe.

[0018] As a further description of the above technical solution:

[0019] The inlet pipe is slidably connected to a transport pipe, and the outer wall of the transport pipe is provided with a fixing groove.

[0020] As a further description of the above technical solution:

[0021] The balls are arranged in a ring array inside the liquid inlet pipe, and the outer wall of each ball is slidably connected to the inside of the moving groove.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the handle is first pulled outwards, causing the inner wall of the filter box to press the fixing pin and retract it into the docking block. When the limiting block is completely disengaged from the sliding groove, the filter screen is also completely removed from the filter box. Then, the new filter screen is reinstalled back into the filter box. This achieves the effect of easily removing and replacing the filter screen during equipment use, avoiding the problem of needing complicated operations to remove and replace the filter screen during equipment use, thereby improving the efficiency of the papermaking wastewater treatment device.

[0024] 2. In this utility model, first, hold the sliding sleeve and push it inward to unlock the ball bearing. Then, hold the transport tube and insert its front end into the liquid inlet pipe. After that, release the sliding sleeve so that it pops outward under the action of the second spring, thereby pushing the ball bearing into the fixed groove on the outer wall of the transport tube. This achieves the effect of easily connecting the transport tube and the liquid inlet pipe during equipment use, avoiding the problem of needing complicated operations to connect the transport tube and the liquid inlet pipe during equipment use, thus improving the practicality of the papermaking wastewater treatment device. Attached Figure Description

[0025] Figure 1 This is a perspective view of a papermaking wastewater treatment device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the filter box of a papermaking wastewater treatment device proposed in this utility model;

[0027] Figure 3 for Figure 2 A magnified view of the structure at point A in the middle;

[0028] Figure 4 This is a schematic diagram of the treatment pipe structure of a papermaking wastewater treatment device proposed in this utility model;

[0029] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0030] Legend:

[0031] 1. Processing tank; 2. Inlet pipe; 3. Outlet pipe; 4. Filter box; 5. Inlet pipe; 6. Sliding groove; 7. Filter screen; 8. Limiting block; 9. Baffle plate; 10. Handle; 11. Connecting block; 12. Fixing pin; 13. Limiting plate; 14. Spring 1; 15. Liquid inlet pipe; 16. Sliding sleeve; 17. Fixing ring; 18. Spring 2; 19. Ball bearing; 20. Moving groove; 21. Transport pipe; 22. Fixing groove. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1-3 This utility model provides an embodiment of a papermaking wastewater treatment device, including a treatment tank 1, a filter box 4 fixedly connected to the top of the treatment tank 1 for containing filtered wastewater, an inlet / outlet liquid assembly provided on the outer wall of the treatment tank 1 for connecting each device, a plurality of sliding grooves 6 provided inside the filter box 4 for accommodating limiting blocks 8, a filter screen 7 slidably connected inside the filter box 4 for filtering wastewater, limiting blocks 8 fixedly connected to both sides of the filter screen 7 to limit the movement range of the filter screen 7, a baffle plate 9 fixedly connected to one side of the filter screen 7 to limit the movement of the filter screen 7, a plurality of handles 10 fixedly connected to one side of the baffle plate 9 for driving the filter screen 7 to move, and a plurality of docking blocks 11 fixedly connected to one side of the baffle plate 9 for docking the filter screen 7 and the filter box 4, and a plurality of fixing components provided inside each docking block 11 for fixing the filter box 4 and the filter screen 7;

[0034] Each fixing component includes a fixing pin 12, a limiting plate 13, and multiple springs 14. The outer wall of each fixing pin 12 is slidably connected to the inside of the docking block 11 for fixing the filter box 4 and the filter screen 7. The inner wall of each limiting plate 13 is fixedly connected to the outer wall of the fixing pin 12 to limit the movement range of the fixing pin 12. Each spring 14 is disposed inside the docking block 11 to provide elastic force for the fixing pin 12. One end of each spring 14 is fixedly connected to the inside of the docking block 11, and the other end of each spring 14 is fixedly connected to the top of the fixing pin 12. The liquid inlet / outlet assembly includes an inlet pipe 2, an outlet pipe 3, and an inlet pipe 5. The outer wall of the inlet pipe 2 is fixedly connected to the top of the treatment tank 1 for introducing the filtered wastewater into the treatment tank 1. The outer wall of the outlet pipe 3 is fixedly connected to the bottom of the treatment tank 1 for discharging the treated wastewater. The outer wall of the inlet pipe 5 is fixedly connected to the top of the filter box 4 for introducing wastewater into the filter box 4.

[0035] Specifically, when the filter screen 7 needs to be replaced due to long-term interception of impurities during wastewater treatment, the operator first holds the handle 10 and slowly pulls it out. As the handle 10 moves, the inner wall of the filter box 4 exerts uniform and continuous pressure on the fixing pin 12, forcing the fixing pin 12 to slowly retract into the docking block 11. The limiting block 8 slowly slides along the sliding groove 6. When the limiting block 8 is completely removed from the sliding groove 6, the filter screen 7 carrying dirt is also successfully removed from the filter box 4. At this time, the operator picks up the brand-new filter screen 7 and embeds it into the filter box 4 along the original path. The entire replacement process is smooth and convenient, greatly improving maintenance efficiency.

[0036] Reference Figure 4 and Figure 5 An inlet pipe 15 is fixedly connected to the outer wall of the treatment tank 1 for the inflow of wastewater treatment liquid. A sliding sleeve 16 is slidably connected to the outer wall of the inlet pipe 15 for controlling the fixing and unlocking of the ball bearing 19. A fixing ring 17 is fixedly connected to the outer wall of the inlet pipe 15 to limit the movement range of the sliding sleeve 16. The inner wall of the sliding sleeve 16 is slidably connected to the outer wall of the fixing ring 17. A second spring 18 is installed inside the sliding sleeve 16 to provide elastic force to the sliding sleeve 16. One end of the second spring 18 is fixedly connected inside the sliding sleeve 16, and the other end of the second spring 18... Fixed to one side of the fixing ring 17, the inlet pipe 15 has multiple balls 19 slidably connected inside for fixing the transport pipe 21. Multiple moving grooves 20 are opened inside the inlet pipe 15 to accommodate the balls 19. The transport pipe 21 is slidably connected inside the inlet pipe 15 for transporting wastewater treatment liquid. The outer wall of the transport pipe 21 has a fixing groove 22 to accommodate the balls 19. The balls 19 are arranged in a ring array inside the inlet pipe 15, and the outer wall of each ball 19 is slidably connected inside the moving groove 20.

[0037] Specifically, when the transport pipe 21 needs to be installed, the operator first holds the sliding sleeve 16 and then pushes it inward. As the sliding sleeve 16 moves, the ball bearing 19, which was originally embedded in the slot and in a locked state, is instantly unlocked. Then, the operator holds the transport pipe 21 with both hands, aligns its front end with the inside of the liquid inlet pipe 15, and slowly inserts it. After it is inserted into place, the operator releases the tightly held sliding sleeve 16. Under the elastic force of the second spring 18, the sliding sleeve 16 pops outward, pushing the ball bearing 19 into the fixing groove 22 on the outer wall of the transport pipe 21. At this time, the transport pipe 21 is securely installed, and its connection is tight and firm, laying a reliable foundation for subsequent wastewater transport work.

[0038] Working principle: When using the papermaking wastewater treatment device, when it is necessary to install the transport pipe 21, first hold the sliding sleeve 16 and push it inward to unlock the ball bearing 19. Then hold the transport pipe 21 and insert its front end into the liquid inlet pipe 15. After that, release the sliding sleeve 16 so that it pops outward under the action of the spring 18, thereby pushing the ball bearing 19 into the fixing groove 22 on the outer wall of the transport pipe 21, thus completing the installation of the transport pipe 21. Then, introduce wastewater into the equipment and start the equipment to start treating the wastewater. When it is necessary to replace the filter screen 7, first hold the handle 10 and pull it outward to squeeze the fixing pin 12 into the connecting block 11. When the limiting block 8 is completely removed from the sliding groove 6, the filter screen 7 is also completely removed from the filter box 4. Then, reinstall the new filter screen 7 back into the filter box 4.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A papermaking wastewater treatment device, comprising a treatment tank (1), characterized in that: The top of the treatment tank (1) is fixedly connected to a filter box (4). The outer wall of the treatment tank (1) is provided with an inlet / outlet liquid assembly. The filter box (4) has multiple sliding grooves (6) inside. The filter box (4) is slidably connected to a filter screen (7). Limiting blocks (8) are fixedly connected to both sides of the filter screen (7). A baffle plate (9) is fixedly connected to one side of the filter screen (7). Multiple handles (10) are fixedly connected to one side of the baffle plate (9). Multiple docking blocks (11) are fixedly connected to one side of the baffle plate (9). Multiple fixing components are provided inside each docking block (11). Each of the fixing components includes a fixing pin (12), a limiting plate (13), and a plurality of springs (14). The outer wall of each fixing pin (12) is slidably connected to the inside of the docking block (11). The inner wall of each limiting plate (13) is fixedly connected to the outer wall of the fixing pin (12). Each spring (14) is disposed inside the docking block (11). One end of each spring (14) is fixedly connected to the inside of the docking block (11), and the other end of each spring (14) is fixedly connected to the top of the fixing pin (12).

2. The papermaking wastewater treatment device according to claim 1, characterized in that: The liquid inlet / outlet assembly includes an inlet pipe (2), an outlet pipe (3), and an inlet pipe (5). The outer wall of the inlet pipe (2) is fixedly connected to the top of the treatment tank (1), the outer wall of the outlet pipe (3) is fixedly connected to the bottom of the treatment tank (1), and the outer wall of the inlet pipe (5) is fixedly connected to the top of the filter box (4).

3. The papermaking wastewater treatment device according to claim 1, characterized in that: The outer wall of the treatment tank (1) is fixedly connected to an inlet pipe (15), and a sliding sleeve (16) is slidably connected to the outer wall of the inlet pipe (15).

4. The papermaking wastewater treatment device according to claim 3, characterized in that: The outer wall of the inlet pipe (15) is fixedly connected to a fixing ring (17), and the inner wall of the sliding sleeve (16) is slidably connected to the outer wall of the fixing ring (17).

5. The papermaking wastewater treatment device according to claim 3, characterized in that: The sliding sleeve (16) is provided with a second spring (18). One end of the second spring (18) is fixedly connected to the inside of the sliding sleeve (16), and the other end of the second spring (18) is fixedly connected to one side of the fixed ring (17).

6. The papermaking wastewater treatment device according to claim 3, characterized in that: The liquid inlet pipe (15) has multiple ball bearings (19) slidably connected inside, and multiple moving grooves (20) are opened inside the liquid inlet pipe (15).

7. The papermaking wastewater treatment device according to claim 3, characterized in that: The inlet pipe (15) is slidably connected to a transport pipe (21), and a fixing groove (22) is provided on the outer wall of the transport pipe (21).

8. The papermaking wastewater treatment device according to claim 6, characterized in that: The balls (19) are arranged in a ring array inside the inlet pipe (15), and the outer wall of each ball (19) is slidably connected to the inside of the moving groove (20).

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