A papermaking wastewater sludge integrated pre-treatment device

Abstract

The utility model discloses a papermaking wastewater sludge integration front processing device, including treatment box and partition, the inside of treatment box and located partition's both sides are provided with front processing mechanism and collection mechanism respectively, the inside of treatment box is provided with the scraping mechanism that will give water floating object scrape to the inside of collection mechanism, the both sides of treatment box inner wall all are provided with the limiting mechanism that is positioned to scraping mechanism. The front processing mechanism that the utility model sets can carry out flocculation treatment to waste water, and can produce micro -bubble to can be attached on flocculation and bring to the other side of partition, subsequently set scraping mechanism can scrape the flocculation that floats to the inside of collection mechanism and is concentrated collection, and the limiting mechanism that sets can be positioned to scraping mechanism, prevent the position deviation of scraping mechanism when scraping the flocculation that floats, and such setting degree of integration is higher, and can guarantee that flocculation can be scraped fully.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, specifically to an integrated pretreatment device for papermaking wastewater and sludge. Background Technology

[0002] Wastewater and sludge treatment in papermaking is a crucial aspect of environmental management for paper companies. The papermaking process generates a large amount of wastewater, which, after treatment by a wastewater treatment system, forms sludge rich in fiber, fillers, lignin, organic matter, and inorganic salts. The scientific and efficient treatment of this sludge is not only essential for the company's compliant operation but also directly impacts operating costs and sustainable development.

[0003] In wastewater treatment systems, industrial wastewater containing large amounts of suspended solids (SS), grease, fibers, colloids, or recalcitrant organic matter requires pretreatment. Such pretreatment can significantly reduce the load on subsequent biological systems and improve overall treatment efficiency and stability. However, existing equipment can only perform air flotation to treat these floating solids and grease, which has a low degree of integration and requires further flocculation treatment, thus increasing the number of wastewater treatment steps. Therefore, we propose an integrated pretreatment device for papermaking wastewater and sludge. Utility Model Content

[0004] The purpose of this invention is to provide an integrated pretreatment device for papermaking wastewater and sludge to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated pretreatment device for papermaking wastewater and sludge, comprising a treatment box, with multiple sets of support legs fixedly installed at the bottom of the treatment box, a partition plate fixedly installed inside the treatment box, a pretreatment mechanism for pretreatment of wastewater arranged inside the treatment box and on one side of the partition plate, a collection mechanism for collecting floating matter in the wastewater arranged on the inner wall of the treatment box and on the other side of the partition plate, a scraping mechanism for scraping floating matter in the treatment box to the collection mechanism, and limiting mechanisms for positioning the scraping mechanism arranged on both sides of the inner wall of the treatment box.

[0006] Furthermore, the pretreatment mechanism includes a first discharge pipe, a mounting frame, a pretreatment frame, a first drive motor, and a bubble discharge rod. The first discharge pipe is installed through the processing box on one side of the partition plate. The mounting frame is fixedly installed on the top of the processing box. The pretreatment frame is fixedly installed on one side of the inner wall of the processing box. The first drive motor is fixedly installed on the mounting frame at the position corresponding to the pretreatment frame. A stirring rod is fixedly connected to the output end of the first drive motor. A stirring blade is fixedly connected to the outside of the stirring rod. A bubble discharge rod is provided on the mounting frame on the outside of the pretreatment frame.

[0007] Furthermore, the collection mechanism includes a guide plate and a second discharge pipe. A "V"-shaped guide plate is fixedly installed inside the processing box. A second discharge pipe is provided through the processing box at a position corresponding to the guide plate. A third discharge pipe is provided through the bottom of one end of the processing box.

[0008] Furthermore, the scraping mechanism includes a rotating shaft, a connecting sprocket, a connecting chain, a fixing block, and a scraper. Two sets of rotating shafts are rotatably connected inside the processing box. Two sets of connecting sprockets are fixedly connected to the outside of the rotating shafts. A connecting chain is provided outside the connecting sprockets. Two sets of fixing blocks are fixedly installed outside the connecting chains. An "L"-shaped scraper is fixedly installed on the fixing blocks. A second drive motor is fixedly installed on one side of the processing box, and the output end of the second drive motor is fixedly connected to the rotating shaft.

[0009] Furthermore, the limiting mechanism includes a limiting groove and a positioning rod. The inner wall of the processing box is provided with an annular limiting groove, and the positioning rod inserted into the limiting groove is fixedly connected to the fixing block.

[0010] Furthermore, the top of the partition is set at an angle, and the height of the partition is lower than the height of the preprocessing frame.

[0011] Compared with the prior art, the present invention has the following advantages: The partition plate of the present invention can divide the treatment box into two working positions. The pre-treatment mechanism can flocculate the wastewater and generate microbubbles, which can adhere to the flocs and carry them to the other side of the partition plate. The scraping mechanism can scrape the floating flocs into the collection mechanism for centralized collection. The limiting mechanism can limit the scraping mechanism to prevent the scraping mechanism from shifting its position when scraping the floating flocs. This design has a high degree of integration and can ensure that the flocs can be fully scraped off. Attached Figure Description

[0012] Figure 1 This is a first perspective structural diagram of the present invention; Figure 2This is a second perspective view of the structure of this utility model; Figure 3 This is an enlarged schematic diagram of structure A of this utility model.

[0013] In the diagram: 1. Processing box; 2. Support leg; 3. Divider plate; 4. Pre-processing mechanism; 5. Scraping mechanism; 6. Collection mechanism; 7. Limiting mechanism; 8. First discharge pipe; 9. Mounting frame; 10. Pre-processing frame; 11. First drive motor; 12. Stirring rod; 13. Stirring blade; 14. Bubble discharge rod; 15. Guide plate; 16. Second discharge pipe; 17. Rotating shaft; 18. Connecting sprocket; 19. Connecting chain; 20. Fixing block; 21. Scraper; 22. Second drive motor; 23. Third discharge pipe; 24. Limiting groove; 25. Positioning rod. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1-3 This utility model provides a technical solution: an integrated pretreatment device for papermaking wastewater and sludge, including a treatment box 1. Multiple sets of support legs 2 are fixedly installed at the bottom of the treatment box 1. A partition plate 3 is fixedly installed inside the treatment box 1. A pretreatment mechanism 4 for pretreatment of wastewater is provided inside the treatment box 1 and on one side of the partition plate 3. A collection mechanism 6 for collecting floating matter in wastewater is provided on the inner wall of the treatment box 1 and on the other side of the partition plate 3. A scraping mechanism 5 for scraping floating matter into the collection mechanism 6 is provided inside the treatment box 1. Limiting mechanisms 7 for positioning the scraping mechanism 5 are provided on both sides of the inner wall of the treatment box 1.

[0016] The partition plate 3 divides the treatment tank 1 into two working positions. The pretreatment mechanism 4 then performs flocculation treatment on the wastewater and generates microbubbles, which can adhere to the flocs and carry them to the other side of the partition plate 3. The scraping mechanism 5 then scrapes the floating flocs into the collection mechanism 6 for centralized collection. The limiting mechanism 7 limits the scraping mechanism 5 to prevent it from shifting position when scraping the floating flocs. This integrated design ensures that the flocs can be fully scraped off.

[0017] Please see Figure 1 and Figure 2The pretreatment mechanism 4 includes a first discharge pipe 8, a mounting frame 9, a pretreatment frame 10, a first drive motor 11, and a bubble discharge rod 14. The first discharge pipe 8 is installed through the treatment box 1 on one side of the partition plate 3. The mounting frame 9 is fixedly installed on the top of the treatment box 1. The pretreatment frame 10 is fixedly installed on one side of the inner wall of the treatment box 1. The first drive motor 11 is fixedly installed on the mounting frame 9 at the position corresponding to the pretreatment frame 10. The output end of the first drive motor 11 is fixedly connected to a stirring rod 12. A stirring blade 13 is fixedly connected to the outside of the stirring rod 12. The bubble discharge rod 14 is provided on the mounting frame 9 at the outside of the pretreatment frame 10. The treatment box 1 is equipped with a water pump for carrying the wastewater inside the pretreatment frame 10 to the position of the bubble discharge rod 14.

[0018] The wastewater to be treated is discharged into the pretreatment frame 10. Then, flocculant and coagulant aid are discharged into the pretreatment frame 10. At this time, the first drive motor 11 drives the stirring rod 12 and stirring blade 13 to rotate, so that the wastewater and flocculant and coagulant aid can fully contact the wastewater for preliminary flocculation treatment. Then, the water pump carries the wastewater out. At this time, the bubbles generated by the external air flotation machine are discharged through the bubble discharge rod 14, so that the microbubbles can attach to the floating matter of the flocculant. Then, the floating matter can be discharged to the other side of the partition plate 3 through the partition plate 3.

[0019] Please see Figures 1-3 The collection mechanism 6 includes a guide plate 15 and a second discharge pipe 16. A "V"-shaped guide plate 15 is fixedly installed inside the processing box 1. A second discharge pipe 16 is provided through the processing box 1 at the position corresponding to the guide plate 15. A third discharge pipe 23 is provided through the bottom of one end of the processing box 1.

[0020] The floating debris is scraped and collected into the "V"-shaped guide plate 15. The material inside the guide plate 15 can then be collected and recycled through the second discharge pipe 16, while the treated wastewater can be discharged through the third discharge pipe 23.

[0021] Please see Figures 1-3 The scraping mechanism 5 includes a rotating shaft 17, a connecting sprocket 18, a connecting chain 19, a fixing block 20, and a scraper 21. Two sets of rotating shafts 17 are rotatably connected inside the processing box 1. Two sets of connecting sprockets 18 are fixedly connected to the outside of the rotating shafts 17. A connecting chain 19 is provided outside the connecting sprockets 18. Two sets of fixing blocks 20 are fixedly installed outside the connecting chain 19. An "L"-shaped scraper 21 is fixedly installed on the fixing block 20. A second drive motor 22 is fixedly installed on one side of the processing box 1. The output end of the second drive motor 22 is fixedly connected to the rotating shaft 17.

[0022] When it is necessary to scrape away floating objects, the second drive motor 22 drives the rotating shaft 17 and the connecting sprocket 18 to rotate. This allows the rotating connecting sprocket 18 to drive the connecting chain 19 to rotate, which in turn allows the fixing block 20 and the "L"-shaped scraper 21 mounted on the connecting chain 19 to rotate and move. The scraper 21 is then used to scrape the floating objects into the guide plate 15.

[0023] Please see Figure 3 The limiting mechanism 7 includes a limiting groove 24 and a positioning rod 25. The inner wall of the processing box 1 is provided with an annular limiting groove 24, and the positioning rod 25, which is inserted into the limiting groove 24, is fixedly connected to the fixing block 20.

[0024] When the fixed block 20 and the scraper 21 rotate along the connecting chain 19, the positioning rod 25 provided inside the fixed block 20 can be limited by the limiting groove 24, thereby preventing the scraper 21 from shifting position when it rotates to scrape.

[0025] Please see Figure 1 and Figure 2 The top of the partition plate 3 is set at an angle, and the height of the partition plate 3 is lower than the height of the pretreatment frame 10. The angled top of the partition plate 3 allows wastewater to enter to the other side of the partition plate 3, while the lower height of the partition plate 3 prevents wastewater from flowing back into the pretreatment frame 10.

[0026] In use, firstly, the partition plate 3 divides the treatment tank 1 into two working positions. Then, the pretreatment mechanism 4 flocculates the wastewater and generates microbubbles, which adhere to the flocs and are carried to the other side of the partition plate 3. Next, the scraping mechanism 5 scrapes the floating flocs into the collection mechanism 6 for centralized collection. The limiting mechanism 7 limits the scraping mechanism 5 to prevent it from shifting position while scraping the floating flocs. This integrated design ensures thorough removal of flocs. The wastewater to be treated is discharged into the pretreatment frame 10, where flocculant and coagulant aid are discharged. At this time, the first drive motor 11 rotates the stirring rod 12 and stirring blade 13, allowing the wastewater to fully contact the flocculant and coagulant aid for preliminary flocculation. Then, the water pump carries the wastewater out, and bubbles generated by the external flotation machine are discharged through the bubble discharge rod 14. This allows microbubbles to adhere to the floating matter of the flocculents. The floating matter can then be discharged through the separator 3 to the other side of the separator 3. The floating matter is scraped and collected into the "V"-shaped guide plate 15. The material inside the guide plate 15 can then be collected and recycled through the second discharge pipe 16. The treated wastewater can be discharged through the third discharge pipe 23. When it is necessary to scrape off the floating matter, the second drive motor 22 drives the rotating shaft 17 and the connecting sprocket 18 to rotate. This allows the rotating connecting sprocket 18 to drive the connecting chain 19 to rotate. This causes the fixing block 20 and the "L"-shaped scraper 21 installed on the connecting chain 19 to rotate and move. The scraper 21 scrapes the floating matter into the guide plate 15. When the fixing block 20 and the scraper 21 rotate and move along the connecting chain 19, the positioning rod 25 set inside the fixing block 20 can be limited by the limiting groove 24, thereby preventing the scraper 21 from shifting position when it rotates and scrapes.

[0027] 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. An integrated pretreatment device for papermaking wastewater and sludge, comprising a treatment tank (1), wherein multiple sets of support legs (2) are fixedly installed at the bottom of the treatment tank (1), and a partition plate (3) is fixedly installed inside the treatment tank (1), characterized in that: Inside the treatment tank (1) and on one side of the partition plate (3), there is a pretreatment mechanism (4) for pretreatment of wastewater. On the inner wall of the treatment tank (1) and on the other side of the partition plate (3), there is a collection mechanism (6) for collecting floating wastewater. Inside the treatment tank (1), there is a scraping mechanism (5) for scraping the floating wastewater into the collection mechanism (6). On both sides of the inner wall of the treatment tank (1), there are limiting mechanisms (7) for positioning the scraping mechanism (5).

2. The integrated pretreatment device for papermaking wastewater and sludge according to claim 1, characterized in that: The pretreatment mechanism (4) includes a first discharge pipe (8), a mounting frame (9), a pretreatment frame (10), a first drive motor (11), and a bubble discharge rod (14). The first discharge pipe (8) is provided through the processing box (1) on one side of the partition plate (3). The mounting frame (9) is fixedly installed on the top of the processing box (1). The pretreatment frame (10) is fixedly installed on one side of the inner wall of the processing box (1). The first drive motor (11) is fixedly installed on the mounting frame (9) at the position corresponding to the pretreatment frame (10). The output end of the first drive motor (11) is fixedly connected to a stirring rod (12). The stirring blade (13) is fixedly connected to the outside of the stirring rod (12). The bubble discharge rod (14) is provided on the mounting frame (9) on the outside of the pretreatment frame (10).

3. The integrated pretreatment device for papermaking wastewater and sludge according to claim 2, characterized in that: The collection mechanism (6) includes a guide plate (15) and a second discharge pipe (16). A "V"-shaped guide plate (15) is fixedly installed inside the processing box (1). A second discharge pipe (16) is provided through the processing box (1) at a position corresponding to the guide plate (15). A third discharge pipe (23) is provided through the bottom of one end of the processing box (1).

4. The integrated pretreatment device for papermaking wastewater and sludge according to claim 3, characterized in that: The scraping mechanism (5) includes a rotating shaft (17), a connecting sprocket (18), a connecting chain (19), a fixing block (20), and a scraper (21). The processing box (1) is rotatably connected to two sets of rotating shafts (17). The rotating shafts (17) are fixedly connected to two sets of connecting sprockets (18). The connecting sprockets (18) are provided with connecting chains (19) on their outside. The connecting chains (19) are fixedly installed with two sets of fixing blocks (20). The fixing blocks (20) are fixedly installed with "L"-shaped scrapers (21). A second drive motor (22) is fixedly installed on one side of the processing box (1). The output end of the second drive motor (22) is fixedly connected to the rotating shaft (17).

5. The integrated pretreatment device for papermaking wastewater and sludge according to claim 4, characterized in that: The limiting mechanism (7) includes a limiting groove (24) and a positioning rod (25). The inner wall of the processing box (1) is provided with an annular limiting groove (24). The positioning rod (25) inserted into the limiting groove (24) is fixedly connected to the fixing block (20).

6. The integrated pretreatment device for papermaking wastewater and sludge according to claim 5, characterized in that: The top of the partition plate (3) is set at an angle, and the height of the partition plate (3) is lower than the height of the pre-processing frame (10).

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