Anaerobic treatment device for papermaking wastewater
By incorporating a filter box and agitator structure into the anaerobic treatment unit, the problem of particulate impurities affecting treatment efficiency is solved, achieving thorough mixing and efficient degradation of anaerobic bacteria and organic matter, and simplifying sludge cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-24
AI Technical Summary
Existing anaerobic treatment devices lack pre-filtration structures for particulate impurities in papermaking wastewater and efficient mixing structures, which affects the contact and mixing of anaerobic bacteria with dissolved organic matter, resulting in low treatment efficiency.
The device is equipped with a pretreatment component, a filter box and a filter plate to filter particulate impurities, and a transmission component drives the agitator to rotate in the opposite direction to enhance water flow disturbance. Combined with a sludge scraper to clean sludge, this ensures that anaerobic bacteria and organic matter are fully mixed.
It improves the treatment efficiency of papermaking wastewater, ensures sufficient contact and mixing between anaerobic bacteria and organic matter, enhances degradation efficiency, and facilitates sludge cleaning.
Smart Images
Figure CN224030782U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wastewater treatment technical field especially relates to an anaerobic treatment device of papermaking wastewater. BACKGROUND
[0002] Papermaking wastewater refers to the wastewater produced in paper production process, contains a large amount of organic matter, suspended solids and chemical substances, has great pollution to water environment. The anaerobic treatment of papermaking wastewater can effectively degrade the organic matter in wastewater, and can recover part of energy, reduce the processing cost.
[0003] But the existing anaerobic treatment device has some shortcomings. First, the existing anaerobic treatment device lacks the pre-filtering structure for the particulate impurities in papermaking wastewater, which will affect the contact and degradation of anaerobic bacteria to the dissolved organic matter, and reduce the processing efficiency. Secondly, the existing anaerobic treatment device lacks efficient stirring structure, and the anaerobic bacteria and organic matter in papermaking wastewater cannot be mixed quickly and fully, so the degradation efficiency is low. Therefore, an anaerobic treatment device for papermaking wastewater is proposed to solve the above problems. UTILITY MODEL CONTENT
[0004] In order to make up for the above shortcomings, the utility model provides an anaerobic treatment device for papermaking wastewater, which aims to improve the problems of the existing anaerobic treatment device lacking the pre-filtering structure for the particulate impurities in papermaking wastewater and lacking the efficient stirring structure.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: an anaerobic treatment device for papermaking wastewater, comprising a cylinder, a pretreatment assembly is installed at the top of one side of the cylinder, a gear box is fixedly connected to the middle of the top end of the cylinder, a motor one is fixedly installed at the top end of the gear box, a vertical shaft is fixedly connected to the output end of the motor one through the inner wall of the gear box, a sleeve shaft is rotatably connected to the center of the top end of the cylinder through a bearing, and the sleeve shaft is sleeved on the surface of the vertical shaft, a transmission assembly is installed in the gear box, a plurality of stirring paddles are fixedly connected to the bottom of the sleeve shaft and the bottom of the vertical shaft, and a mud scraping frame is fixedly connected to the bottom of the vertical shaft on both sides.
[0006] The pretreatment assembly comprises a filter box, a filter plate and a dredging assembly, the filter box is fixedly communicated with the top of one side of the cylinder, the filter plate is clamped on one side of the inside of the filter box, and the dredging assembly is installed on one side of the filter box.
[0007] Further description of the above technical scheme:
[0008] The transmission assembly comprises an upper bevel gear, a side bevel gear and a lower bevel gear, the upper bevel gear is fixedly sleeved on the top of the vertical shaft, the side bevel gear is rotatably connected to one side of the inner wall of the gear box through a bearing, and the lower bevel gear is fixedly sleeved on the top of the sleeve shaft.
[0009] As a further description of the above technical solution:
[0010] The top of the side bevel gear meshes with the upper bevel gear, and the bottom of the side bevel gear meshes with the lower bevel gear.
[0011] As a further description of the above technical solution:
[0012] The unblocking assembly includes a second motor, a horizontal shaft, and a brush. The second motor is fixedly installed in the middle of one side of the filter box. The output end of the second motor passes through the inner wall of the filter box and is fixedly connected to the horizontal shaft. One end of the horizontal shaft is fixedly connected to the brush, and the brush is in contact with the surface of the filter plate.
[0013] As a further description of the above technical solution:
[0014] A water inlet pipe is fixedly connected to the top of one side of the filter box, a sludge pipe is fixedly connected to the middle of one side of the cylinder, an exhaust pipe is fixedly connected to one side of the top of the cylinder, and a water outlet pipe is fixedly connected to the bottom of the other side of the cylinder.
[0015] As a further description of the above technical solution:
[0016] Solenoid valves are installed on the surfaces of the inlet pipe, outlet pipe, sludge pipe, and exhaust pipe.
[0017] As a further description of the above technical solution:
[0018] A butterfly valve is fixedly connected to the bottom end of the cylinder.
[0019] As a further description of the above technical solution:
[0020] The two scraper frames are respectively attached to the two sides of the bottom of the inner wall of the cylinder.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, a pretreatment component is installed at the water inlet of the anaerobic treatment device. The filter plate in the filter box can filter particulate impurities in the papermaking wastewater in advance, so as to avoid affecting the contact and degradation of dissolved organic matter by anaerobic bacteria, improve the treatment efficiency, and the motor on the unblocking component can be periodically started to drive the brush at the end of the horizontal shaft to rotate, which can brush off the filter material on the surface of the filter plate and ensure the smooth flow of water inlet.
[0023] 2. In this utility model, by starting motor one, the upper and lower sets of stirring paddles inside the cylinder can be driven to rotate in opposite directions, which increases the disturbance effect on the water flow, so that the anaerobic bacteria in the activated sludge can be quickly and fully mixed with the organic matter in the papermaking wastewater, improving the degradation efficiency. At the same time, the vertical shaft can drive the sludge scraper to rotate, scraping the sludge attached to the bottom of the cylinder, making cleaning and discharge convenient. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of an anaerobic treatment device for papermaking wastewater proposed in this utility model.
[0025] Figure 2 This is a cross-sectional schematic diagram of an anaerobic treatment device for papermaking wastewater proposed in this utility model.
[0026] Figure 3 This is a cross-sectional schematic diagram of the gearbox of an anaerobic treatment device for papermaking wastewater proposed in this utility model.
[0027] Figure 4 This is a cross-sectional schematic diagram of the filter box of an anaerobic treatment device for papermaking wastewater proposed in this utility model.
[0028] Legend:
[0029] 1. Cylinder; 2. Inlet pipe; 3. Sludge pipe; 4. Exhaust pipe; 5. Outlet pipe; 6. Butterfly valve; 7. Gearbox; 8. Motor 1; 9. Vertical shaft; 10. Sleeve shaft; 11. Upper bevel gear; 12. Side bevel gear; 13. Lower bevel gear; 14. Agitator; 15. Sludge scraper; 16. Solenoid valve; 17. Filter box; 18. Filter plate; 19. Motor 2; 20. Horizontal shaft; 21. Brush. Detailed Implementation
[0030] 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.
[0031] Reference Figures 1-3This utility model provides an embodiment of an anaerobic treatment device for papermaking wastewater, comprising a cylinder 1, which serves as a container for anaerobic treatment of papermaking wastewater. A pretreatment component is installed on the top of one side of the cylinder 1 to pre-filter particulate impurities in the papermaking wastewater, thereby avoiding interference with the contact and degradation of dissolved organic matter by anaerobic bacteria. A gearbox 7 is fixedly connected to the middle of the top of the cylinder 1, and a motor 8 is fixedly installed at the top of the gearbox 7 to drive the stirring structure. The output end of the motor 8 is fixedly connected to a vertical shaft through the inner wall of the gearbox 7. 9. A sleeve shaft 10 is rotatably connected to the center of the top of the cylinder 1 via a bearing, and the sleeve shaft 10 is fitted onto the surface of the vertical shaft 9. The double-layer design ensures that the two shafts do not interfere with each other when rotating. A transmission component is installed inside the gearbox 7. Several stirring paddles 14 are fixedly connected to the bottom of the sleeve shaft 10 and the bottom of the vertical shaft 9, which are used to stir the papermaking wastewater and activated sludge in the cylinder 1 to improve the mixing efficiency. Sludge scrapers 15 are fixedly connected to both sides of the bottom of the vertical shaft 9 to scrape the sludge attached to the bottom of the cylinder 1 for easy cleaning.
[0032] Reference Figure 1 and Figure 4 The pretreatment component includes a filter box 17, a filter plate 18, and a dredging component. The filter box 17 is fixedly connected to the top of one side of the cylinder 1, and can send the filtered water into the cylinder 1. The filter plate 18 is engaged on one side inside the filter box 17 to filter particulate impurities in the input papermaking wastewater, so as to avoid affecting the degradation of organic matter by anaerobic bacteria. A dredging component is installed on one side of the filter box 17 to dredge the surface of the filter plate 18, so as to avoid being blocked by particulate impurities and affecting the flow of water.
[0033] Reference Figure 2 The transmission assembly includes an upper bevel gear 11, a side bevel gear 12, and a lower bevel gear 13. The upper bevel gear 11 is fixedly sleeved on the top of the vertical shaft 9. The side bevel gear 12 is rotatably connected to one side of the inner wall of the gearbox 7 through a bearing. The lower bevel gear 13 is fixedly sleeved on the top of the sleeve shaft 10. The vertical shaft 9 is rotated by starting the motor 8. With the cooperation of the three bevel gears, the sleeve shaft 10 can be driven to rotate synchronously in opposite directions, thereby causing the upper and lower sets of stirring paddles 14 inside the cylinder 1 to rotate in opposite directions, increasing the disturbance effect on the water flow.
[0034] Reference Figure 2 The top of the side bevel gear 12 meshes with the upper bevel gear 11, and the bottom of the side bevel gear 12 meshes with the lower bevel gear 13. When the upper bevel gear 11 is driven to rotate, it can drive the lower bevel gear 13 to rotate in the opposite direction with the cooperation of the side bevel gear 12.
[0035] Reference Figure 2The unblocking assembly includes a second motor 19, a horizontal shaft 20, and a brush 21. The second motor 19 is fixedly installed in the middle of one side of the filter box 17 and serves as a drive. The output end of the second motor 19 passes through the inner wall of the filter box 17 and is fixedly connected to the horizontal shaft 20. One end of the horizontal shaft 20 is fixedly connected to the brush 21, and the brush 21 is in contact with the surface of the filter plate 18. The second motor 19 on the unblocking assembly can be periodically started to drive the brush 21 at the end of the horizontal shaft 20 to rotate, which can brush off the filter material on the surface of the filter plate 18 to ensure smooth water intake.
[0036] Reference Figure 1 The top of one side of the filter box 17 is fixedly connected to the water inlet pipe 2 for inputting the papermaking wastewater to be treated. The middle of one side of the cylinder 1 is fixedly connected to the water inlet pipe 2 for inputting activated sludge containing anaerobic bacteria. The top of the cylinder 1 is fixedly connected to the exhaust pipe 4 for discharging the biogas produced in the anaerobic treatment process. The bottom of the other side of the cylinder 1 is fixedly connected to the water outlet pipe 5 for discharging the water after anaerobic treatment.
[0037] Reference Figure 1 Solenoid valves 16 are installed on the surfaces of the inlet pipe 2, the outlet pipe 5, the sludge pipe 3, and the exhaust pipe 4. The opening and closing of the pipes can be controlled by the solenoid valves 16, which facilitates the cleaning of the device.
[0038] Reference Figure 1 A butterfly valve 6 is fixedly connected to the bottom of the cylinder 1. After opening the butterfly valve 6, the sludge settled inside the cylinder 1 can be cleaned and discharged.
[0039] Reference Figure 2 The two scraper frames 15 are respectively attached to the two sides of the bottom of the inner wall of the cylinder 1. When the vertical shaft 9 rotates, it can drive the scraper frames 15 to rotate, scraping the sludge attached to the bottom of the cylinder 1, making cleaning and discharge convenient.
[0040] Working principle: The papermaking wastewater to be treated is input through the inlet pipe 2, and activated sludge containing anaerobic bacteria is input through the sludge pipe 3 into the cylinder 1. The cylinder 1 is kept in an anaerobic state. A pretreatment component is installed at the inlet of this anaerobic treatment device. The filter plates 18 in the filter box 17 can filter particulate impurities in the papermaking wastewater in advance, avoiding affecting the contact and degradation of dissolved organic matter by anaerobic bacteria, thus improving treatment efficiency. The motor 19 on the unblocking component can be periodically activated to drive the brush 21 at the end of the horizontal shaft 20 to rotate, which can brush off the filter material on the surface of the filter plates 18 to ensure unobstructed water intake. The motor 8 drives the vertical shaft 9 to rotate. With the cooperation of three bevel gears, the sleeve shaft 10 can be driven to rotate synchronously in opposite directions. This causes the upper and lower sets of stirring paddles 14 inside the cylinder 1 to rotate in opposite directions, increasing the disturbance effect on the water flow. This allows the anaerobic bacteria in the activated sludge to mix quickly and thoroughly with the organic matter in the papermaking wastewater, improving the degradation efficiency. The biogas produced during this process can be discharged through the exhaust pipe 4, and the treated water can be discharged through the outlet pipe 5. The settled sludge can be cleaned by opening the butterfly valve 6. At the same time, the rotation of the vertical shaft 9 can drive the sludge scraper 15 to rotate, scraping the sludge attached to the bottom of the cylinder 1, making cleaning and discharge convenient.
[0041] 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. An anaerobic treatment device for papermaking wastewater, comprising a cylindrical body (1), characterized in that: A pretreatment component is installed on the top of one side of the cylinder (1). A gearbox (7) is fixedly connected to the middle of the top of the cylinder (1). A motor (8) is fixedly installed on the top of the gearbox (7). The output end of the motor (8) is fixedly connected to a vertical shaft (9) through the inner wall of the gearbox (7). A sleeve shaft (10) is rotatably connected to the center of the top of the cylinder (1) through a bearing. The sleeve shaft (10) is sleeved on the surface of the vertical shaft (9). A transmission component is installed inside the gearbox (7). Several stirring paddles (14) are fixedly connected to the bottom of the sleeve shaft (10) and the bottom of the vertical shaft (9). Sludge scrapers (15) are fixedly connected to both sides of the bottom of the vertical shaft (9). The pretreatment assembly includes a filter box (17), a filter plate (18), and a dredging assembly. The filter box (17) is fixedly connected to the top of one side of the cylinder (1). The filter plate (18) is engaged on one side inside the filter box (17). A dredging assembly is installed on one side of the filter box (17).
2. The anaerobic treatment device for papermaking wastewater according to claim 1, characterized in that: The transmission assembly includes an upper bevel gear (11), a side bevel gear (12), and a lower bevel gear (13). The upper bevel gear (11) is fixedly sleeved on the top of the vertical shaft (9). The side bevel gear (12) is rotatably connected to one side of the inner wall of the gearbox (7) through a bearing. The lower bevel gear (13) is fixedly sleeved on the top of the sleeve shaft (10).
3. The anaerobic treatment device for papermaking wastewater according to claim 2, characterized in that: The top of the side bevel gear (12) meshes with the upper bevel gear (11), and the bottom of the side bevel gear (12) meshes with the lower bevel gear (13).
4. The anaerobic treatment device for papermaking wastewater according to claim 1, characterized in that: The unblocking assembly includes a second motor (19), a horizontal shaft (20), and a brush (21). The second motor (19) is fixedly installed in the middle of one side of the filter box (17). The output end of the second motor (19) passes through the inner wall of the filter box (17) and is fixedly connected to the horizontal shaft (20). One end of the horizontal shaft (20) is fixedly connected to the brush (21), and the brush (21) is in contact with the surface of the filter plate (18).
5. The anaerobic treatment device for papermaking wastewater according to claim 1, characterized in that: The filter box (17) has an inlet pipe (2) fixedly connected to the top of one side, a sludge pipe (3) fixedly connected to the middle of one side of the cylinder (1), an exhaust pipe (4) fixedly connected to one side of the top of the cylinder (1), and an outlet pipe (5) fixedly connected to the bottom of the other side of the cylinder (1).
6. The anaerobic treatment device for papermaking wastewater according to claim 5, characterized in that: Solenoid valves (16) are provided on the surface of the inlet pipe (2), the outlet pipe (5), the sludge pipe (3), and the exhaust pipe (4).
7. The anaerobic treatment device for papermaking wastewater according to claim 1, characterized in that: A butterfly valve (6) is fixedly connected to the bottom end of the cylinder (1).
8. The anaerobic treatment device for papermaking wastewater according to claim 1, characterized in that: The two scraper frames (15) are respectively attached to the two sides of the bottom of the inner wall of the cylinder (1).