COD (Chemical Oxygen Demand) degradation treatment equipment for PCB (Printed Circuit Board) substrate organic bath solution wastewater
By designing a COD degradation treatment equipment for a multi-motor-driven agitation system, the problem of poor stirring effect of traditional equipment is solved, efficient COD removal and acidification reaction is achieved, and production costs are reduced.
Patent Information
- Application Number
- CN202421526257.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The prior art is difficult to effectively treat high-concentration organic tank liquid wastewater, especially in the issue of COD and heavy metal exceeding the standard. The design of traditional stirring devices leads to poor stirring effect, long time, and increasing production costs.
A COD degradation treatment equipment including high-efficiency air floatation, acidification reaction tank, filter press filtration, Fenton tank and precipitation treatment was designed. The acidification reaction tank is equipped with a multi-motor-driven agitation system. Through the combination of gears and threaded rods, comprehensive stirring of the reaction tank is achieved to avoid blind spots.
Through the use of this equipment, the removal rate of COD is significantly improved, reaching 80%, while avoiding the stirring dead corners, improving the acidification reaction efficiency of wastewater, reducing outsourced disposal costs, and reducing production costs.
Smart Images
Figure CN222961274U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wastewater COD degradation treatment, in particular to a COD degradation treatment device for organic tank liquid wastewater of PCB substrates. Background Technique
[0002] With the vigorous development of the electronics and semiconductor industries, during the production process of PCB substrates, the high-concentration organic tank waste liquid generated is difficult to treat. Most enterprises adopt external cooperation for treatment. There are few units that can treat this waste liquid. Even if there are corresponding treatment units locally, the treatment cost is very high, which is a headache for enterprises. The COD content of the organic tank liquid wastewater is high (up to 80,000 mg / L), and it also contains a certain amount of heavy metals.
[0003] When treating wastewater, it is easy to cause the COD of the wastewater treatment system to exceed the standard, and the impact of heavy metal exceeding the standard on the biochemical system. When the wastewater is degraded in the reaction tank, the traditional reaction tank stirring device is installed in the center of the tank body. During stirring, only the middle part of the tank body can be stirred, and there are dead corners at the four corners of the tank body, resulting in poor stirring effect, longer time consumption, low work efficiency, and high production cost. Content of the Utility Model
[0004] (I) Technical Problems to be Solved
[0005] In view of the deficiencies of the prior art, the utility model provides a COD degradation treatment device for organic tank liquid wastewater of PCB substrates.
[0006] (II) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solution: A COD degradation treatment device for organic tank liquid wastewater of PCB substrates, including high-efficiency air flotation, acidification reaction tank, filter press filtration, Fenton tank and precipitation treatment. The acidification reaction tank includes a mounting frame. An inner ring plate is arranged inside the mounting frame. A rack is arranged inside the inner ring plate. A sliding frame is arranged on the mounting frame. The sliding frame is slidably connected to the mounting frame. A first motor is arranged on one side of the top of the sliding frame. A rotating rod is arranged inside the sliding frame. A gear is arranged on the rotating rod. The gear is meshed with the rack. A connecting plate is arranged at the bottom of one side of the sliding frame. A threaded rod is arranged on one side of the top of the connecting plate. A first bevel gear is arranged at one end of the threaded rod. A moving plate is arranged on the threaded rod. The moving plate is threadedly connected to the threaded rod. A third motor is arranged on the top of the moving plate. A transmission rod is arranged at the bottom of the moving plate. The output end of the third motor is connected to the transmission rod. Stirring blades are arranged on both sides of the bottom end of the transmission rod. A second motor is arranged on the side surface of the top of the connecting plate. A second bevel gear is arranged at the output end of the second motor. The second bevel gear is meshed with the first bevel gear.
[0008] Further, the utility model is improved in that a fixed sliding rod is arranged on the other side of the top end of the connecting plate, a sliding hole is arranged inside the side surface of the moving plate, and the fixed sliding rod is slidably arranged inside the sliding hole.
[0009] Further, the utility model is improved in that the first motor, the second motor and the third motor all adopt servo motors.
[0010] Further, the utility model is improved in that a sliding groove is arranged inside one side of the mounting frame, a sliding block is arranged on one side inside the sliding frame, and one end of the sliding block is slidably arranged inside the sliding groove.
[0011] Further, the utility model is improved in that support frames are arranged on both sides of the bottom end of the mounting frame, and the support frames are welded to the mounting frame.
[0012] Further, the utility model is improved in that three groups of stirring blades are arranged and are evenly arranged on the transmission rod.
[0013] Further, the utility model is improved in that flow disturbance holes are arranged on the stirring blades, and a plurality of flow disturbance holes are arranged.
[0014] (III) Beneficial effects
[0015] Compared with the prior art, the utility model provides a PCB substrate organic trough liquid wastewater COD degradation treatment device, which has the following beneficial effects:
[0016] This PCB substrate organic trough liquid wastewater COD degradation treatment device separately collects the waste liquid, first performs high-efficiency air flotation treatment to remove part of the organic matter, floating scum, etc., and the removal rate of COD reaches 25%. The air flotation effluent is then subjected to acidification treatment, and most of the organic matter and the organic blue film produced in production will precipitate after acidification. Then, it is filtered by a filter press, and the removal rate of COD reaches 80%. The filtrate of the filter press then enters the Fenton system, where ferrous sulfate and hydrogen peroxide are added to generate hydroxyl radicals, and strong oxidation is used to reduce the organic matter in the water. Then, Fenton treatment is carried out, and then it is evenly put into the low-concentration cleaning water by a small metering pump and sent to biochemical treatment together. Generally speaking, after treating the high-concentration organic waste liquid, the outsourcing disposal cost for the enterprise is reduced. When in the acidification reaction tank, through the comprehensive stirring of the stirring blades, the wastewater can be quickly reacted in the acidification reaction tank, there will be no dead corners, and the stirring effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a process flow structure schematic diagram of the utility model;
[0018] Figure 2 For the utility model Figure 1 is a structural schematic diagram at the reaction tank in;
[0019] Figure 3 The upward view structural schematic diagram of the present utility model Figure 2 ;
[0020] Figure 4 The side view internal structural schematic diagram of the present utility model Figure 3 ;
[0021] Figure 5 The partial enlarged structural schematic diagram at position A in the present utility model Figure 4 ;
[0022] In the figure: 1, mounting frame; 2, inner ring plate; 3, rack; 4, sliding frame; 5, first motor; 6, connecting plate; 7, second motor; 8, threaded rod; 9, fixed sliding rod; 10, moving plate; 11, third motor; 12, transmission rod; 13, stirring blade; 14, rotating rod; 15, gear; 16, first bevel gear; 17, second bevel gear. Specific embodiments
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0024] Please refer to Figures 1-5, A PCB substrate organic bath wastewater COD degradation treatment device, including high-efficiency air flotation, acidification reaction tank, filter press filtration, Fenton tank and sedimentation treatment. The acidification reaction tank includes a mounting frame 1, an inner ring plate 2 is arranged inside the mounting frame 1, a rack 3 is arranged inside the inner ring plate 2, a sliding frame 4 is arranged on the mounting frame 1, the sliding frame 4 is slidably connected to the mounting frame 1, a first motor 5 is arranged on one side of the top of the sliding frame 4, a rotating rod 14 is arranged inside the sliding frame 4, a gear 15 is arranged on the rotating rod 14, the gear 15 is meshed with the rack 3, a connecting plate 6 is arranged at the bottom of one side of the sliding frame 4, a threaded rod 8 is arranged on one side of the top of the connecting plate 6, a first bevel gear 16 is arranged at one end of the threaded rod 8, a moving plate 10 is arranged on the threaded rod 8, the moving plate 10 is threadedly connected to the threaded rod 8, a third motor 11 is arranged on the top of the moving plate 10, a transmission rod 12 is arranged at the bottom of the moving plate 10, the output end of the third motor 11 is connected to the transmission rod 12, stirring blades 13 are arranged on both sides of the bottom of the transmission rod 12, a second motor 7 is arranged on the side surface of the top of the connecting plate 6, a second bevel gear 17 is arranged at the output end of the second motor 7, the second bevel gear 17 is meshed with the first bevel gear 16, and three groups of stirring blades 13 are arranged and evenly distributed on the transmission rod 12.
[0025] In the actual use process of the above structure, first, the high-concentration organic wastewater is treated by high-efficiency air flotation to remove part of the organic matter, floating slag, etc. The removal rate of COD reaches 25%. Then, the air flotation effluent enters the acidification reaction tank. After acidification, most of the organic matter in the wastewater will precipitate, producing an organic blue film. Then, it passes through the filter press filtration, and the removal rate of COD reaches 80%. The filtrate of the filter press enters the Fenton system, where ferrous sulfate and hydrogen peroxide are added to generate hydroxyl radicals. Using strong oxidation, the organic matter in the water is reduced, and Fenton treatment is carried out. Then, it is evenly put into the low-concentration cleaning water with a small metering pump and sent to biochemical treatment together. Generally speaking, after treating the high-concentration organic waste liquid, the cost of external cooperation disposal for the enterprise is reduced.
[0026] And when the wastewater reacts in the acidification reaction tank, the first motor 5 is turned on. The first motor 5 drives the gear 15 through the rotation of the rotating rod 14. The gear 15 is meshed and driven on the rack 3, thereby driving the sliding frame 4 to slide on the mounting frame 1. Then, the second motor 7 and the third motor 11 are turned on at the same time. The second motor 7 drives the first bevel gear 16 through the second bevel gear 17, and the first bevel gear 16 drives the threaded rod 8 to rotate. The threaded rod 8 rotates to drive the moving plate 10, so that the moving plate 10 slides repeatedly on the top of the connecting plate 6. At the same time, the third motor 11 drives the transmission rod 12 to rotate, and the transmission rod 12 drives the stirring blades 13 to stir the inside of the acidification reaction tank through the stirring rod, improving the acidification reaction efficiency of the wastewater, avoiding stirring dead corners, improving the uniformity of the reaction, and having stronger practicability.
[0027] In this embodiment, a fixed sliding rod 9 is provided on the other side of the top end of the connecting plate 6. A sliding hole is provided inside the side surface of the moving plate 10. The fixed sliding rod 9 is slidably arranged inside the sliding hole, which improves the stability of the moving plate 10 during sliding.
[0028] In this embodiment, a sliding groove is provided inside one side of the mounting frame 1. A slider is provided on one side inside the sliding frame 4. One end of the slider is slidably arranged inside the sliding groove, which improves the stability of the sliding frame 4 during sliding.
[0029] In this embodiment, support frames are provided on both sides of the bottom end of the mounting frame 1. The support frames are welded to the mounting frame 1, which improves the firmness of the mounting frame 1 during fixation.
[0030] In this embodiment, spoiler holes are provided on the stirring blade 13. A plurality of spoiler holes are provided, which improves the stirring effect of the stirring blade 13.
[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A PCB substrate organic tank wastewater COD degradation treatment equipment, characterized by: The invention comprises a high-efficiency flotation, an acidification reaction pool, a filter press filtration, a Fenton pool and a sedimentation treatment, wherein the acidification reaction pool comprises a mounting frame (1), an inner ring plate (2) is arranged inside the mounting frame (1), a rack (3) is arranged inside the inner ring plate (2), a sliding frame (4) is arranged on the mounting frame (1), the sliding frame (4) and the mounting frame (1) are slidably connected, a first motor (5) is arranged on one side of the top of the sliding frame (4), a rotating rod (14) is arranged inside the sliding frame (4), a gear (15) is arranged on the rotating rod (14), the gear (15) and the rack (3) are meshingly connected, a connecting plate (6) is arranged on the bottom of one side of the sliding frame (4), and a connecting plate (6) is arranged on one side of the top of the connecting plate (6). A threaded rod (8) is provided, a first bevel gear (16) is provided at one end of the threaded rod (8), a movable plate (10) is provided on the threaded rod (8), the movable plate (10) and the threaded rod (8) are threadedly connected, a third motor (11) is provided at the top end of the movable plate (10), a transmission rod (12) is provided at the bottom end of the movable plate (10), an output end of the third motor (11) is connected to the transmission rod (12), stirring blades (13) are provided on both sides of the bottom end of the transmission rod (12), a second motor (7) is provided on the side surface of the top end of the connecting plate (6), a second bevel gear (17) is provided at the output end of the second motor (7), and the second bevel gear (17) is meshingly connected to the first bevel gear (16).
2. A PCB substrate organic tank liquid wastewater COD degradation treatment equipment according to claim 1, characterized in that: A fixed sliding rod (9) is arranged on the other side of the top end of the connecting plate (6), a sliding hole is arranged inside the side surface of the movable plate (10), and the fixed sliding rod (9) is slidably arranged inside the sliding hole.
3. A PCB substrate organic tank liquid wastewater COD degradation treatment equipment according to claim 2, characterized in that: The first motor (5), the second motor (7) and the third motor (11) are all servo motors.
4. A PCB substrate organic tank liquid wastewater COD degradation treatment equipment according to claim 3, characterized in that: A slide groove is provided inside one side of the mounting frame (1), a sliding block is provided inside one side of the sliding frame (4), and one end of the sliding block is slidably disposed inside the slide groove.
5. A PCB substrate organic tank wastewater COD degradation treatment equipment according to claim 4, characterized in that: Support frames are arranged on both sides of the bottom end of the mounting frame (1), and the support frames are connected to the mounting frame (1) by welding.
6. The COD degradation treatment equipment for PCB substrate organic tank wastewater according to claim 5 is characterized by: The stirring blades (13) are provided in three groups and are evenly arranged on the transmission rod (12).
7. A PCB substrate organic tank wastewater COD degradation treatment equipment according to claim 6, characterized in that: The stirring blade (13) is provided with a flow disturbance hole, and a plurality of the flow disturbance holes are provided.