Wastewater treatment equipment for papermaking

Abstract

The utility model discloses papermaking wastewater treatment equipment, which relates to the technical field of wastewater treatment and comprises an outer sleeve, two groups of filtering tanks are mounted in the outer sleeve, filtering pieces are mounted in the filtering tanks, two ends of each filtering tank are communicated with connecting pipes, the end parts of the connecting pipes are communicated with communicating pipes, and a collecting pipe is communicated between the two groups of communicating pipes. One end of each collecting pipe is communicated with a water inlet pipe extending to the outer side of the outer sleeve, the end of the other collecting pipe is communicated with a water drainage pipe extending to the outer side of the outer sleeve, the outer sleeve is further fixedly connected with a limiting frame, a sealing piece is installed in the connecting pipe close to one end of the water inlet pipe, and a control piece used for controlling opening and closing of the sealing piece is installed on the filtering piece. According to the invention, through switching of the two groups of filter elements, one group of filter elements always treats wastewater in the cleaning or replacing process of the filter elements, so that the wastewater treatment efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater treatment device for papermaking. Background Technology

[0002] Currently, the main papermaking technology used is the alkaline pulping and papermaking process. This process generates a large amount of wastewater, which contains a large amount of lignin, giving it a dark brown color. This wastewater is also known as black liquor. Discharging this wastewater into the environment can cause significant pollution. Therefore, it is crucial to know how to treat the wastewater generated during the papermaking process.

[0003] Currently, wastewater generated in the papermaking industry requires the use of filter cartridges composed of materials such as activated carbon for treatment. However, the long-term treatment load on these filter cartridges gradually increases, eventually causing them to lose their effectiveness and necessitating cleaning or replacement. Existing technologies make filter cartridge replacement difficult and require machine shutdown for replacement or cleaning, thus affecting wastewater treatment efficiency. Therefore, this invention proposes a wastewater treatment device for papermaking. Utility Model Content

[0004] The purpose of this utility model is to provide a wastewater treatment device for papermaking to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a wastewater treatment device for papermaking, including an outer casing, inside which two sets of filter tanks are installed. Filter elements are installed inside each filter tank, and both ends of each filter tank are connected to connecting pipes. The ends of the connecting pipes are connected to connecting pipes, and a collecting pipe connects the two sets of connecting pipes. One end of the collecting pipe is connected to an inlet pipe extending to the outside of the outer casing, and the end of the other set of collecting pipes is connected to a drain pipe extending to the outside of the outer casing. A limiting frame is also fixedly connected to the outer casing, and a sealing element is installed inside the connecting pipe near the inlet pipe. A control element for controlling the opening and closing of the sealing element is installed on the filter element. This ensures that the normal filtration of the device is not affected while cleaning or replacing the filter element, thereby improving the efficiency of wastewater treatment.

[0005] Preferably, the filter element includes a filter cartridge installed inside the filter canister. A fixing ring is installed on the outer side of the filter cartridge. A sealing plate for sealing the filter canister is fixedly connected to the fixing ring. A handle is fixedly connected to the sealing plate. A sliding plate that is slidably connected to the limiting frame is fixedly connected to the handle to facilitate filter cartridge replacement.

[0006] Preferably, the sealing element includes a fixing plate fixed inside the connecting pipe, the fixing plate having a through hole, and a fixing post slidably connected to the fixing plate, a sealing block fixedly connected to the fixing post, a sealing ring slidably connected to the outer side of the sealing block and fixedly connected to the connecting pipe, and a tension spring fixedly connected between the sealing block and the fixing plate to facilitate sealing the connecting pipe.

[0007] Preferably, the control component includes a fixing frame fixedly connected to the filter element, a fixing shaft fixedly connected to the fixing frame, a first circular block fixedly connected to the fixing shaft, a second circular block installed on one side of the first circular block, a connecting column fixedly connected to the fixing column on the second circular block, and a limiting component installed between the first circular block and the second circular block to facilitate control of the opening and closing of the seal.

[0008] Preferably, the limiting member includes a spring fixed inside the second circular block, the end of the spring is fixedly connected to a sliding post that is slidably connected to the second circular block, the end of the sliding post is rotatably connected to a ball that is movably connected to the first circular block, and the first circular block is provided with a ball groove that matches the ball, so as to clamp the filter element and make the filter element stably installed inside the filter tank.

[0009] Preferably, a connecting rod is installed between the two sets of filter tanks. The connecting rod is slidably connected to the filter tank, and both ends of the connecting rod are fixedly connected to a push plate that contacts the filter element. The push plate is slidably connected to the filter tank, which facilitates automatic switching of the filter elements inside the two sets of filter tanks.

[0010] Preferably, the outer side of the handle is covered with a sponge sleeve, which makes it easy to pull the handle to remove the filter element for cleaning or replacement.

[0011] This utility model has at least the following beneficial effects:

[0012] This utility model provides a wastewater treatment device for papermaking. During wastewater treatment, a set of filter cartridges is inserted into a filter tank. During insertion, a control mechanism opens the seal, opening the connecting pipe. Wastewater then enters the filter tank through the connecting pipe and is filtered by the filter cartridges. Meanwhile, another set of filter cartridges is not yet inserted into the filter tank, and its connecting pipe remains sealed due to the seal, preventing wastewater from entering the filter tank without cartridges. After the filter cartridges have treated wastewater for a period, they need cleaning or replacement. Pressing the other set of filter cartridges inserts them into the filter tank, and pressing removes the used cartridges. During this process, the control mechanism opens the channel for installing the filter cartridges while closing the other channel, allowing a new filter cartridge to filter the wastewater. By switching between the two sets of filter cartridges, a single set continuously treats the wastewater during cleaning or replacement, thus improving wastewater treatment efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic cross-sectional view of the present invention.

[0015] Figure 3 This is a schematic diagram of the connection structure between the filter element and the tank body of this utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure between the sealing element and the control element of this utility model;

[0017] Figure 5 This utility model Figure 4 Schematic diagram of the structure of area A in the middle;

[0018] Figure 6 This is a schematic diagram of the filter element structure of this utility model;

[0019] Figure 7 This is a schematic diagram of the structure of the two sets of filter elements of this utility model.

[0020] In the diagram: 1-Outer jacket; 2-Filter tank; 3-Filter element; 4-Connecting pipe; 5-Connecting pipe; 6-Collection pipe; 7-Inlet pipe; 8-Drain pipe; 9-Limiting frame; 10-Seal; 11-Control element; 12-Filter element; 13-Fixing ring; 14-Sealing plate; 15-Sliding plate; 16-Handle; 17-Fixing plate; 18-Through hole; 19-Fixing column; 20-Sealing block; 21-Sealing ring; 22-Tension spring; 23-Fixing frame; 24-Fixing shaft; 25-First circular block; 26-Second circular block; 27-Connecting column; 28-Limiting element; 29-Spring; 30-Sliding column; 31-Ball bearing; 32-Ball bearing groove; 33-Connecting rod; 34-Push plate. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-7 This utility model provides a technical solution: a wastewater treatment device for papermaking, including an outer casing 1, two sets of filter tanks 2 installed inside the outer casing 1, filter elements 3 installed inside the filter tanks 2, and connecting pipes 4 connected to both ends of the filter tanks 2. Connecting pipes 5 are connected to the ends of the connecting pipes 4, and a collecting pipe 6 is connected between the two sets of connecting pipes 5. One end of the collecting pipe 6 is connected to an inlet pipe 7 extending to the outside of the outer casing 1, and the end of the other set of collecting pipes 6 is connected to a drain pipe 8 extending to the outside of the outer casing 1. A limiting frame 9 is also fixedly connected to the outer casing 1, and a sealing element 10 is installed inside the connecting pipe 4 near the end of the inlet pipe 7. A control element 11 for controlling the opening and closing of the sealing element 10 is installed on the filter element 3.

[0023] The filter element 3 includes a filter element 12 installed inside the filter canister 2. A fixing ring 13 is installed on the outer side of the filter element 12. A sealing plate 14 for sealing the filter canister 2 is fixedly connected to the fixing ring 13. A handle 16 is fixedly connected to the sealing plate 14. A sliding plate 15 that is slidably connected to the limiting frame 9 is fixedly connected to the handle 16. A sponge sleeve is fitted on the outer side of the handle 16.

[0024] The sealing element 10 includes a fixing plate 17 fixed inside the connecting pipe 4. The fixing plate 17 has a through hole 18 and a fixing post 19 is slidably connected to the fixing plate 17. A sealing block 20 is fixedly connected to the fixing post 19. A sealing ring 21 fixedly connected to the connecting pipe 4 is slidably connected to the outer side of the sealing block 20. A tension spring 22 is fixedly connected between the sealing block 20 and the fixing plate 17.

[0025] The control component 11 includes a fixing frame 23 fixedly connected to the filter element 12. A fixing shaft 24 is fixedly connected to the fixing frame 23. A first circular block 25 is fixedly connected to the fixing shaft 24. A second circular block 26 is installed on one side of the first circular block 25. A connecting column 27 fixedly connected to the fixing column 19 is fixedly connected to the second circular block 26. A limiting component 28 is installed between the first circular block 25 and the second circular block 26.

[0026] The limiting member 28 includes a spring 29 fixed inside the second circular block 26. The end of the spring 29 is fixedly connected to a sliding post 30 that is slidably connected to the second circular block 26. The end of the sliding post 30 is rotatably connected to a ball bearing 31 that is movably connected to the first circular block 25. The first circular block 25 has a ball bearing groove 32 that is adapted to the ball bearing 31.

[0027] A connecting rod 33 is installed between the two sets of filter tanks 2. The connecting rod 33 is slidably connected to the filter tank 2, and both ends of the connecting rod 33 are fixedly connected to a push plate 34 that contacts the filter element 12. The push plate 34 is slidably connected to the filter tank 2.

[0028] Working principle: During wastewater treatment, one set of filter cartridges 12 is inserted into the filter tank 2, and the filter tank 2 is sealed by the sealing plate 14. The other set of filter cartridges 12 is not inserted into the filter tank 2. During the insertion of the filter cartridge 12, the sliding plate 15 is placed inside the limiting frame 9, and then the handle 16 is pushed to install the filter cartridge 12 into the filter tank 2. During this process, the first circular block 25 on the filter cartridge 12 will squeeze the second circular block 26. The squeezing of the second circular block 26 by the first circular block 25 will cause the second circular block 26 to... The movement of the second circular block 26 causes the connecting column 27 to move, which in turn causes the fixed column 19 to move. The fixed column 19 then causes the sealing block 20 to move, moving it away from the sealing ring 21. At this point, a gap exists between the sealing pipe and the sealing block 20, allowing the connecting pipe 4 to be in a conductive state. Wastewater then enters the connecting pipe 5 through the inlet pipe 7, and then enters the filter tank 2 through the gap between the sealing block 20 and the sealing ring 21 in the connecting pipe 4, where it is filtered by the filter element 12. (During this process, due to another...) Since the first and second circular blocks 25 and 26 of the outer set have not yet been compressed, the sealing block 20 and sealing ring 21 inside the other set of connecting pipes 4 are in a closed state, so wastewater will not enter the other set of filter tanks 2. After the filter element 12 has been processed for a period of time, it has adsorbed a lot of impurities, affecting its filtration effect. Therefore, it needs to be disassembled for cleaning or replacement. During this process, push the other set of handles 16 to insert the filter element 12 into the filter tank 2, and then use the push plate 34 and connecting rod 33 to remove the used filter element 12 from the filter tank 2. This completes the switching of the two sets of filter elements 12. At this time, the connecting pipe 4 is still in a conductive state due to the compression of the first circular block 25 and the second circular block 26. The other set of connecting pipes 4 is closed because the first circular block 25 is away from the second circular block 26 and the spring 22 resets it. At this time, the wastewater will enter the filter tank 2 after the filter element 12 is installed. That is, the wastewater will only enter the filter tank 2 after the filter element 12 is installed. The wastewater is filtered by the filter element 12. The removed filter element 12 can be cleaned or replaced without affecting the wastewater treatment.

[0029] It is worth noting that after the filter element 12 is installed, the ball 31 inside the second circular block 26 corresponds exactly to the ball groove 32 in the first circular block 25. Therefore, the ball 31 is pushed into the ball groove 32 by the action of the spring 29, so that the first circular block 25 can be stably installed inside the filter canister 2, thus making the filter element 12 stably installed inside the filter canister 2.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for papermaking, characterized in that, include: The outer casing (1) has two sets of filter tanks (2) installed inside. The filter tanks (2) have filter elements (3) installed inside. Both ends of the filter tanks (2) are connected to connecting pipes (4). The ends of the connecting pipes (4) are connected to connecting pipes (5). The two sets of connecting pipes (5) are connected to a collection pipe (6). One end of the collection pipe (6) is connected to an inlet pipe (7) extending to the outside of the outer casing (1). The end of the other set of collection pipes (6) is connected to a drain pipe (8) extending to the outside of the outer casing (1). A limit frame (9) is also fixedly connected to the outer casing (1). A sealing element (10) is installed inside the connecting pipe (4) near the end of the inlet pipe (7). A control element (11) for controlling the opening and closing of the sealing element (10) is installed on the filter element (3).

2. The wastewater treatment equipment for papermaking according to claim 1, characterized in that: The filter element (3) includes a filter element (12) installed inside the filter canister (2). A fixing ring (13) is installed on the outer side of the filter element (12). A sealing plate (14) for sealing the filter canister (2) is fixedly connected to the fixing ring (13). A handle (16) is fixedly connected to the sealing plate (14). A sliding plate (15) that is slidably connected to the limiting frame (9) is fixedly connected to the handle (16).

3. The wastewater treatment equipment for papermaking according to claim 2, characterized in that: The sealing element (10) includes a fixing plate (17) fixed inside the connecting pipe (4), the fixing plate (17) has a through hole (18), and a fixing post (19) is slidably connected to the fixing plate (17). A sealing block (20) is fixedly connected to the fixing post (19). A sealing ring (21) fixedly connected to the connecting pipe (4) is slidably connected to the outer side of the sealing block (20). A tension spring (22) is fixedly connected between the sealing block (20) and the fixing plate (17).

4. The wastewater treatment equipment for papermaking according to claim 3, characterized in that: The control component (11) includes a fixing frame (23) fixedly connected to the filter element (12), a fixing shaft (24) fixedly connected to the fixing frame (23), a first circular block (25) fixedly connected to the fixing shaft (24), a second circular block (26) installed on one side of the first circular block (25), a connecting column (27) fixedly connected to the fixing column (19) fixedly connected to the second circular block (26), and a limiting component (28) installed between the first circular block (25) and the second circular block (26).

5. The wastewater treatment equipment for papermaking according to claim 4, characterized in that: The limiting member (28) includes a spring (29) fixed inside the second circular block (26). The end of the spring (29) is fixedly connected to a sliding post (30) that is slidably connected to the second circular block (26). The end of the sliding post (30) is rotatably connected to a ball (31) that is movably connected to the first circular block (25). The first circular block (25) has a ball groove (32) that is adapted to the ball (31).

6. The wastewater treatment equipment for papermaking according to claim 5, characterized in that: A connecting rod (33) is installed between the two sets of filter tanks (2). The connecting rod (33) is slidably connected to the filter tank (2), and both ends of the connecting rod (33) are fixedly connected to a push plate (34) that contacts the filter element (12). The push plate (34) is slidably connected to the filter tank (2).

7. The wastewater treatment equipment for papermaking according to claim 6, characterized in that: The outer side of the handle (16) is covered with a sponge sleeve.

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