Copper-containing sewage treatment equipment

Abstract

The invention discloses copper-containing sewage treatment equipment which comprises a sedimentation tank, a mud pressing mechanism located in the sedimentation tank, a first cross beam and a second cross beam, the first cross beam and the second cross beam are arranged on the side wall of the sedimentation tank in a criss-cross mode, the mud pressing mechanism comprises a mud pressing cylinder and a mud pressing drainage assembly located in the mud pressing cylinder, and the mud pressing cylinder is arranged on the second cross beam. A sludge discharging assembly is arranged on the second cross beam, a sludge pressing groove is formed in the position, under the bottom of the sludge pressing barrel, of the center of the bottom of the sedimentation tank, the sludge pressing and draining assembly comprises a sludge pressing plate and a fixing cover which are movably arranged, and the sludge discharging assembly comprises a sludge shoveling device which is movably arranged. And a second through groove for the mud shoveling device to penetrate through is formed in the wall body of the upper half part of the mud pressing barrel. The sludge pressing mechanism is arranged, sludge is firstly settled and enriched in the settling pond, then extrusion dewatering and direct mud cake discharging integrated operation is carried out, the overall treatment efficiency is improved, and the equipment investment, the occupied area and the operation and maintenance cost are reduced.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically, to a copper-containing wastewater treatment device. Background Technology

[0002] Copper-containing wastewater is commonly found in electroplating, metal surface treatment, circuit board processing, and related industrial production processes. To reduce the copper ion content in wastewater, existing treatment processes typically employ chemical precipitation combined with coagulation, flocculation, and sedimentation separation. This causes the copper ions in the wastewater to form precipitates, achieving solid-liquid separation in a sedimentation tank. After sedimentation, the upper part is a relatively clear liquid phase, while the lower part forms copper-containing sludge.

[0003] Copper-containing sludge typically contains a high amount of water, exhibiting a certain degree of fluidity and adhesion. Without further dewatering, it not only hinders subsequent collection, temporary storage, and transportation but also increases treatment costs and on-site management difficulties. Therefore, after sedimentation and separation, the sludge at the bottom of the tank usually requires compression and dewatering to reduce its water content and volume, facilitating subsequent disposal.

[0004] In existing technologies, sedimentation tanks are typically used only for sludge settling. After a certain amount of sludge accumulates at the bottom of the tank, it is then transported to a separately installed filter press outside the tank for dewatering via suction, pumping, or mechanical transfer. Once sludge cakes are formed, the sludge is unloaded and cleaned. In other words, sludge settling, collection, dewatering, and discharge are mostly completed by different equipment, with intermediate transfers connecting the related processes.

[0005] While this treatment method can dewater sludge, it still has certain shortcomings in practical use. Firstly, transferring sludge from the sedimentation tank to external dewatering equipment typically requires sludge pumps, pipelines, or other transfer devices. This results in a relatively dispersed equipment structure, a long processing chain, and a large footprint, hindering equipment integration and increasing investment and maintenance costs. Secondly, copper-containing sludge is prone to leakage, spillage, or residue buildup during extraction, transportation, and transfer. The copper-containing liquid entrained in the sludge poses a risk of leakage, increasing the difficulty of on-site pollution control.

[0006] Furthermore, in existing technologies, the in-tank sedimentation process and the out-of-tank dewatering process are separated. After sedimentation, the sludge at the bottom of the tank often needs to be collected, transported, and filtered again, resulting in poor process continuity and limited overall treatment efficiency. In particular, the removal and unloading of sludge cake after its formation usually requires manual assistance or additional unloading structures, which weakens the ability to operate continuously and is not conducive to improving the automation and stability of the copper-containing sludge treatment process.

[0007] Therefore, it is still necessary to provide a device that can be applied to the treatment of copper-containing sludge, so as to further realize the centralized treatment of sludge on the basis of sedimentation tank related operations, shorten the treatment process, reduce intermediate transfer links, reduce the risk of sludge and filtrate leakage, and improve the overall efficiency of sludge dewatering and unloading operations. Summary of the Invention

[0008] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0009] Therefore, the purpose of this invention is to provide a copper-containing wastewater treatment device, including a sedimentation tank, a sludge pressing mechanism located within the sedimentation tank, and a first and second crossbeam arranged crisscrossingly on the side wall of the sedimentation tank.

[0010] The sludge pressing mechanism includes a sludge pressing cylinder and a sludge pressing and drainage assembly located inside the sludge pressing cylinder.

[0011] The sludge pressing cylinder is mounted on the second crossbeam, and the second crossbeam is equipped with a sludge unloading assembly.

[0012] A sludge pressing trough is provided at the center of the bottom of the sedimentation tank directly below the bottom of the sludge pressing cylinder.

[0013] The sludge-pressing and drainage assembly includes a movable sludge-pressing plate and a fixed cover. A water collection cover is provided on the top surface of the fixed cover, and a water guide pipe is connected to the center of the top surface of the fixed cover.

[0014] The sludge unloading assembly includes a movable shovel, and the upper half of the wall of the sludge pressing cylinder has a second through groove for the shovel to pass through.

[0015] As a preferred technical solution:

[0016] As described above, in a copper-containing wastewater treatment device, a first through groove is provided on one side wall of the sedimentation tank for a second crossbeam to pass through. The first and second crossbeams are bolted to the side wall of the sedimentation tank.

[0017] The second crossbeam has a guide hole for the mud-pressing cylinder to pass through, and a hydraulic cylinder is bolted to the first crossbeam. The output end of the hydraulic cylinder is welded and fixed to the top wall of the mud-pressing cylinder.

[0018] The above technical solution, through the setting of the guide hole, allows the pressing cylinder to move vertically on the second crossbeam, ensuring the moving accuracy and thus ensuring that the pressing cylinder can be accurately inserted into the pressing trough.

[0019] As described above, in a copper-containing wastewater treatment device, a sealing step is provided at the top edge of the sedimentation tank of the sludge pressing tank, and the bottom of the sedimentation tank has a conical structure.

[0020] Through the above technical solution, the conical structure design allows the sludge at the bottom of the sedimentation tank to continuously slide into the sludge pressing trough under its own weight, facilitating sludge pressing and drainage.

[0021] As described above, in a copper-containing wastewater treatment device, a sealing cylinder that mates with a sealing step is welded to the bottom end of the sludge pressing cylinder. A second through hole is opened in the top wall of the sludge pressing cylinder. The diameter of the sealing cylinder is smaller than the diameter of the sludge pressing cylinder. A drain pipe is provided on the first crossbeam, and the bottom end of the drain pipe extends into the second through hole.

[0022] With the above technical solution, a rubber ring is provided at the bottom of the sealing cylinder. After the sealing cylinder and the sealing step are engaged, the rubber ring ensures that the engagement point between the sealing cylinder and the sealing step is sealed, preventing water from entering.

[0023] As described above, in a copper-containing wastewater treatment device, the sludge pressing plate is welded and fixed to the inner wall of the bottom end of the fixed cover. Water guiding holes are evenly distributed on the sludge pressing plate. A filter screen is welded and fixed to the top surface of the sludge pressing plate, and the bottom surface of the sludge pressing plate has a textured surface.

[0024] The fixing cover is welded and fixed to the water guide pipe and the water collection cover, and the outer diameter of the fixing cover is consistent with the inner diameter of the sealing cylinder.

[0025] Through the above technical solution, the bottom texture design of the mud pressing plate increases the adhesion of the mud cake by increasing the contact area and friction, which not only ensures that the mud cake rises stably without falling off, but also facilitates subsequent scraping and cleaning. The structure is simpler and the operation is more reliable.

[0026] As described above, in a copper-containing wastewater treatment device, the top of the water collection hood is welded and fixed to the lifting plate, the lifting plate has a first through hole aligned with the second through hole, and a set of first lead screws runs through the lifting plate, with both ends of the first lead screws being movably connected to the bearings on the inner wall of the sludge pressing cylinder.

[0027] Through the above technical solution, in order to ensure the moving accuracy of the lifting plate, the outer circular surface of the lifting plate can be machined with corresponding external splines, and the inner wall of the mud pressing cylinder is opened with multiple straight grooves along the axial direction. The splines and straight grooves cooperate with each other to ensure that the lifting plate can move vertically and reciprocally stably.

[0028] As described above, in a copper-containing wastewater treatment device, the sludge scraper is a hollow square structure with open ends. The top surface of the sludge scraper facing the sludge pressing cylinder is provided with a cutting edge, and rotating shafts are welded and fixed to the outer walls on both sides of the sludge scraper.

[0029] Through the above technical solution, the structure and shape design of the mud scraper allows it to scrape off the mud cake after passing through it, and the scraped mud cake falls into the mud scraper for easy collection later.

[0030] As described above, in a copper-containing wastewater treatment device, a third through groove is provided on the second crossbeam, and sliding grooves are provided on both sides of the second crossbeam.

[0031] The second lead screw is connected to the bearings on both ends of the third through groove. The second lead screw has a protrusion threaded through it. One end of the second lead screw is connected to the gear transmission of the output shaft of the second motor. The second motor is bolted to the second crossbeam.

[0032] The second crossbeam has a movable frame fitted at one end. The movable frame has a U-shaped structure. The bottom end of the movable frame is welded and fixed to the protrusion. The two sides of the movable frame are connected to the rotating shaft bearing. The two side walls of the movable frame are provided with sliding blocks that cooperate with the sliding groove. The first motor is bolted to one side wall of the movable frame. The output shaft of the first motor is connected to the rotating shaft.

[0033] With the above technical solution, both the sliding groove and the sliding block have T-shaped cross sections. This not only guides the movable frame but also fixes it, preventing it from falling off the second crossbeam and ensuring that the movable frame can move stably.

[0034] In the copper-containing wastewater treatment equipment described above, the water guide pipe is designed vertically, and the distance between the top of the water guide pipe and the lifting plate is 1cm.

[0035] With the above technical solution, the wastewater after pressure filtration is concentrated in the water collection hood. The distance between the water guide pipe and the lifting plate is designed so that the water guide pipe has a certain height. Even if there is still a small amount of water in the water collection hood, it will not flow back out through the water guide pipe, thus avoiding affecting the adhesion between the mud cake and the pressing plate.

[0036] Compared with the prior art, the present invention has at least the following beneficial effects:

[0037] (1) This invention integrates the sedimentation tank, sludge pressing mechanism, and sludge unloading mechanism into one unit. A conical guide structure and a sludge pressing trough located at the center of the sedimentation tank are set at the bottom, so that copper-containing sludge can naturally gather in the sludge pressing area after settling. Then, the sludge pressing cylinder is driven by a hydraulic cylinder to move down to perform compression and dewatering. Thus, sludge collection, compression and dewatering, and subsequent discharge are completed in the same equipment. This structure not only improves the concentration of sludge entering the sludge pressing station and the continuity of sludge pressing operation, but also reduces the intermediate links of sludge transfer from the tank to the external dewatering equipment. It solves the problems of dispersed equipment, long processing links, high transfer risks, and low processing efficiency in the existing copper-containing sludge treatment process.

[0038] (2) This invention sets up a sealing cylinder, sealing steps, pressing plate, filter screen, water guide hole, fixing cover, water guide pipe, water collection cover and drain pipe that cooperate with each other in the pressing area, so that the sludge is squeezed in a relatively closed and stable pressing space. The liquid in the sludge can be discharged through the filter screen and water guide hole after being pressed, and can be collected and discharged in an orderly manner along the water guide pipe, water collection cover and drain pipe. Among them, the sealing structure ensures that the pressing area is relatively isolated from the sludge and water in the external pool, and the guiding and discharge structure ensures that the filtrate is discharged along a predetermined path. This not only improves the sludge-water separation effect, but also reduces the possibility of disorderly leakage of filtrate and secondary pollution, and solves the problems of insufficient sealing, unclear discharge path and unstable dewatering effect in the pressing process of the prior art.

[0039] (3) This invention utilizes the texture on the bottom surface of the pressing plate to enhance the adhesion stability of the mud cake, and uses the lifting plate and the first lead screw to drive the mud cake to move upward with the pressing and drainage assembly. In addition, with the cooperation of the mud scraper with the blade, the movable frame, the second lead screw and the rotating shaft structure, the mud cake is received, scraped and unloaded, so that the transfer and unloading process of the mud cake after it is formed can be carried out continuously. The pressing and forming, the upward movement of mud cake and the mechanical unloading form a good coordination relationship, which not only helps to avoid the mud cake from falling off, breaking and falling back, but also reduces the workload of manual cleaning and auxiliary transportation, and solves the problems of the prior art that the mud cake is not easy to remove after dewatering, the unloading is inconvenient and the continuous operation capability is poor. Attached Figure Description

[0040] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0041] Figure 1 This is a perspective view of the present invention;

[0042] Figure 2 This is a top view of the present invention;

[0043] Figure 3 This is a cross-sectional view of the present invention;

[0044] Figure 4 This is a perspective view of the mud-pressing cylinder of the present invention;

[0045] Figure 5 For the present invention Figure 3 Enlarged view of point A in the middle;

[0046] Figure 6 This is a perspective view of the mud-pressing plate, the fixing cover, and the lifting plate of the present invention;

[0047] Figure 7 This is a three-dimensional top view of the second crossbeam and the shovel of the present invention;

[0048] Figure 8 This is a perspective bottom view of the second crossbeam and the shovel of the present invention.

[0049] In the diagram: 1. Sedimentation tank; 2. Sealing step; 3. Sludge pressing trough; 4. First through channel; 5. First crossbeam; 6. Second crossbeam; 7. Sludge pressing cylinder; 8. Sealing cylinder; 9. Second through channel; 10. Hydraulic cylinder; 11. Sludge pressing plate; 12. Fixed cover; 13. Water guide hole; 14. Filter screen; 15. Water guide pipe; 16. Water collection cover; 17. Lifting plate; 18. First lead screw; 19. First through hole; 20. Second through hole; 21. Third through channel; 22. Second lead screw; 23. Movable frame; 24. Protrusion; 25. Sludge scraper; 26. Cutting edge; 27. Rotating shaft; 28. Sliding block; 29. ​​Sliding groove; 30. First motor; 31. Second motor; 32. Drain pipe; 33. Guide hole. Detailed Implementation

[0050] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0051] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0052] like Figures 1-6 As shown, an embodiment of the present invention discloses a copper-containing wastewater treatment device, including a sedimentation tank 1, a sludge pressing mechanism located in the sedimentation tank 1, and a first crossbeam 5 and a second crossbeam 6 arranged crisscrossingly on the side wall of the sedimentation tank 1.

[0053] The sludge pressing mechanism includes a sludge pressing cylinder 7 and a sludge pressing and drainage assembly located inside the sludge pressing cylinder 7.

[0054] The mud-pressing cylinder 7 is installed on the second crossbeam 6, and the second crossbeam 6 is equipped with a mud-discharging assembly.

[0055] A sludge pressing trough 3 is provided at the center of the bottom of the sedimentation tank 1 directly below the bottom of the sludge pressing cylinder 7. The bottom of the sedimentation tank 1 has a conical structure. A first through groove 4 is provided on one side wall of the sedimentation tank 1 for the second crossbeam 6 to pass through. The first crossbeam 5 and the second crossbeam 6 are bolted to the side wall of the sedimentation tank 1.

[0056] The second crossbeam 6 has a guide hole 33 for the mud pressing cylinder 7 to pass through. The first crossbeam 5 is bolted with a hydraulic cylinder 10, and the output end of the hydraulic cylinder 10 is welded and fixed to the top wall of the mud pressing cylinder 7.

[0057] The mud-pressing drainage assembly includes a movable mud-pressing plate 11 and a fixed cover 12. A water collection cover 16 is provided on the top surface of the fixed cover 12, and a water guide pipe 15 is connected to the center of the top surface of the fixed cover 12.

[0058] The mud unloading assembly includes a movable mud scraper 25, and the upper half of the mud pressing cylinder 7 has a second through groove 9 for the mud scraper 25 to pass through.

[0059] Specifically, during implementation, copper-containing wastewater is introduced into sedimentation tank 1, where dissolved copper ions are converted into insoluble solids through chemical precipitation. Solid-liquid separation is then achieved through coagulation, flocculation, and sedimentation. The insoluble solids eventually settle at the bottom of the tank to form sludge. When treating the sludge, the supernatant is first extracted through a pipeline. At this point, sedimentation tank 1 is left with only sludge and interstitial water entrained in the sludge.

[0060] Next, the hydraulic cylinder 10 is driven, which pushes the sludge pressing cylinder 7 to move vertically downward on the second crossbeam 6 until the bottom end of the sludge pressing cylinder 7 extends into the sludge pressing trough 3. At this time, the sludge pressing plate 11 and the fixed cover 12 move downward as a whole and squeeze the sludge. A cavity is formed between the sludge pressing plate 11 and the fixed cover 12, which is described here as a guide cavity. The interstitial water in the sludge is squeezed into the guide cavity, and then the interstitial water flows into the water guide pipe 15. Finally, it is discharged into the fixed cover 12 through the top of the water guide pipe 15, completing the collection of interstitial water.

[0061] After the sludge is squeezed by the pressure plate, the interstitial water inside is discharged, forming a sludge cake with a certain strength and integrity, no longer in a flowing state. The sludge cake formed in this way adheres to the sludge pressing plate 11 and moves synchronously with the sludge pressing plate 11. When the sludge pressing plate 11 moves the sludge cake to the second channel 9, the sludge scraper 25 moves horizontally through the second channel 9 and extends into the sludge pressing cylinder 7, scraping off the sludge cake adhering to the sludge pressing plate 11. The scraped sludge cake is located inside the sludge scraper 25. At this time, the sludge scraper 25 resets and rotates, which can pour out the internal sludge cake. The sludge cake falls out of the sedimentation tank 1 through the first channel 4. A sludge cake collection facility can be set up on this side of the sedimentation tank 1 for centralized treatment of the sludge cake.

[0062] Next, the sludge pressing cylinder 7 moves upward, and the sludge at the bottom of the sedimentation tank 1 will gradually gather into the sludge pressing trough 3. Through the cooperation of the sludge pressing and drainage components and the sludge unloading components, the continuous squeezing of sludge and the continuous discharge of sludge cake can be achieved, resulting in high operating efficiency.

[0063] In one specific embodiment of the present invention, a sealing step 2 is provided at the top edge of the sedimentation tank 1 of the sludge pressing tank 3, and a sealing cylinder 8 that cooperates with the sealing step 2 is welded to the bottom end of the sludge pressing cylinder 7. The diameter of the sealing cylinder 8 is smaller than the diameter of the sludge pressing cylinder 7.

[0064] Specifically, such as Figure 3 , Figure 4 and Figure 5As shown, when the sludge pressing cylinder 7 moves downward, the sealing cylinder 8 at its bottom end will contact the sealing step 2, thus forming a sealing barrier between the sealing cylinder 8 and the sealing step 2, ensuring that the sludge and interstitial water outside the sludge pressing cylinder 7 will not flow into its interior, thereby ensuring the sludge squeezing and drainage effect.

[0065] After the pressing plate 11 squeezes the sludge into a cake, the bottom and outer surfaces of the cake will contact the pressing trough 3. To reduce the adhesion between the cake and the pressing trough 3, a coating can be applied to the wall of the pressing trough 3 to improve the smoothness of the surface. This ensures that the pressing plate 11 can smoothly carry the cake out of the pressing trough 3. After being carried out, the outer surface of the cake will contact the inner wall of the sealing cylinder 8. To reduce the obstruction of the moving cake by the sealing cylinder 8, the inner wall of the sealing cylinder 8 can also be coated. After the cake passes through the sealing cylinder 8, due to the large diameter of the pressing cylinder 7, the movement of the cake will not rub against the inner wall of the pressing cylinder 7. Thus, when the pressing plate 11 carries the cake to the second channel 9, the cake will not loosen and will not fall off the pressing plate 11.

[0066] In one specific embodiment of the present invention, the mud pressing plate 11 is welded and fixed to the inner wall of the bottom end of the fixed cover 12, the mud pressing plate 11 is provided with water guiding holes 13 evenly, the top surface of the mud pressing plate 11 is welded and fixed with a filter screen 14, and the bottom surface of the mud pressing plate 11 is formed with texture.

[0067] The fixed cover 12 is welded and fixed to the water guide pipe 15 and the water collection cover 16. The outer diameter of the fixed cover 12 is consistent with the inner diameter of the sealing cylinder 8.

[0068] The top of the water collection cover 16 is welded and fixed to the lifting plate 17. A set of first lead screws 18 runs through the lifting plate 17, and the two ends of the first lead screws 18 are movably connected to the bearings on the inner wall of the mud pressing cylinder 7.

[0069] Specifically, such as Figure 3 , Figure 5 and Figure 6 As shown, the filter screen 14 can completely cover the water guide hole 13, and the pore size of the filter screen 14 is 10-20μm. This pore size allows interstitial water in the sludge to pass through smoothly, while sludge particles are trapped, achieving efficient sludge-water separation and preventing clogging.

[0070] The fixed cover 12, the water collection cover 16 and the lifting plate 17 enclose a cavity, which will be described here as the water collection cavity.

[0071] The lifting plate 17 can drive the pressing plate 11 to move vertically through the fixed cover 12. When the pressing plate 11 moves downward, it can squeeze the sludge. The squeezed interstitial water enters the guiding cavity through the water guide hole 13, and then enters the water collection cavity through the guiding cavity to complete the collection of interstitial water. After the squeezing is completed, the lifting plate 17 drives the pressing plate 11 to move upward so that the sludge unloading assembly can collect the sludge cake.

[0072] The top ends of the two first lead screws 18 are connected by chain drive, and a servo motor (not shown in the figure) is installed at the top of the mud pressing cylinder 7. The output end of the servo motor is connected to one of the first lead screws 18. When the servo motor is running, it can drive the two first lead screws 18 to rotate synchronously, which in turn can drive the lifting plate 17 to move vertically back and forth.

[0073] In one specific embodiment of the present invention, a second through hole 20 is provided on the top wall of the mud pressing cylinder 7, a drain pipe 32 is provided on the first crossbeam 5, the bottom end of the drain pipe 32 extends into the second through hole 20, and a first through hole 19 aligned with the second through hole 20 is provided on the lifting plate 17.

[0074] The water guide pipe 15 is designed vertically, and the distance between the top of the water guide pipe 15 and the lifting plate 17 is 1cm.

[0075] Specifically, such as Figure 3 , Figure 5 and Figure 6 As shown, when the mud pressing plate 11 moves the mud cake to the second through groove 9, the bottom end of the drain pipe 32 extends into the first through hole 19, which means that the bottom end of the drain pipe 32 extends into the water collection cavity. The other end of the drain pipe 32 is connected to a water pump, which can pump out the interstitial water in the water collection cavity and treat it centrally.

[0076] Since the drain pipe 32 cannot completely remove all the interstitial water in the water collection chamber, a small amount of interstitial water remains in the water collection chamber. The size and position design of the guide pipe 15 prevents the interstitial water from flowing back out through the guide pipe 15.

[0077] The second through hole 20 is designed so that the mud-pressing cylinder 7 will not squeeze the drain pipe 32 when it moves vertically.

[0078] In one specific embodiment of the present invention, the shovel 25 is a hollow square structure with open ends. The top surface of the shovel 25 facing the mud pressing cylinder 7 is provided with a cutting edge 26, and the outer walls on both sides of the shovel 25 are welded and fixed with rotating shafts 27.

[0079] Specifically, such as Figure 1 and Figure 8 As shown, the width of the shovel 25 is slightly larger than the diameter of the pressing plate 11. This way, after the shovel 25 passes through the second through groove 9, the cutting edge 26 on one side of the shovel 25 can completely cover the mud cake, ensuring that the mud cake is scraped and cut thoroughly. In addition, the overall height of the shovel 25 is greater than the thickness of the mud cake, so as to avoid the shovel 25 from knocking the mud cake loose and ensuring the mud cake collection effect.

[0080] The rotating shaft 27 allows the shovel 25 to rotate. When the mud cake needs to be removed, the shovel 25 rotates downwards on the side away from the pressing cylinder 7, thus tilting the shovel 25 as a whole. The mud cake slides down from the shovel 25 under its own weight and finally falls out of the sedimentation tank 1 through the first channel 4.

[0081] In one specific embodiment of the present invention, a third through groove 21 is provided on the second crossbeam 6, and sliding grooves 29 are provided on both sides of the second crossbeam 6.

[0082] The second lead screw 22 is connected to the bearings on both ends of the third channel 21. The second lead screw 22 has a protrusion 24 threaded through it. One end of the second lead screw 22 is connected to the gear transmission of the output shaft of the second motor 31. The second motor 31 is bolted to the second crossbeam 6.

[0083] The second crossbeam 6 has a movable frame 23 fitted at one end. The movable frame 23 has a "U"-shaped structure. The bottom end of the movable frame 23 is welded and fixed to the protrusion 24. The two sides of the movable frame 23 are connected to the rotating shaft 27 bearings. The two side walls of the movable frame 23 are provided with sliding blocks 28 that cooperate with the sliding groove 29. The first motor 30 is bolted to one side wall of the movable frame 23. The output shaft of the first motor 30 is connected to the rotating shaft 27.

[0084] Specifically, such as Figure 1 , Figure 7 and Figure 8 As shown, when the mud-pressing plate 11 moves the mud cake to the second through groove 9, the mud scraper 25 needs to be moved horizontally. By energizing the second motor 31, the second motor 31 drives the second lead screw 22 to rotate axially in the third through groove 21 through gear transmission.

[0085] Since the sliding block 28 can only move in a straight line within the sliding groove 29, the movable frame 23 can only move in a straight line along the length of the second crossbeam 6 under the combined action of the sliding block 28 and the sliding groove 29.

[0086] When the second lead screw 22 rotates, the second lead screw 22 will push the movable frame 23 to move through the protrusion 24. The movable frame 23 drives the shovel 25 to move horizontally through the two rotating shafts 27 and inserts it into the pressing cylinder 7 through the second through groove 9.

[0087] Since the first motor 30 is not running at this time, the first motor 30 can be braked, so that the rotating shaft 27 will not rotate, thus ensuring that the shovel 25 can remain horizontal when moving.

[0088] After the shovel 25 scrapes off the mud cake, the second motor 31 drives the second lead screw 22 to reverse, which in turn drives the movable frame 23 to reset. The shovel 25 moves and resets accordingly. At this time, the first motor 30 is powered on and drives the shovel 25 to rotate through the rotating shaft 27. In this way, the shovel 25 is tilted. The mud cake inside the shovel 25 opens the pulley under its own weight and finally slides out from one end of the shovel 25.

[0089] In the description of this specification, terms such as "connection," "installation," and "fixation" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meanings of the above terms within this invention based on the specific circumstances.

[0090] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0091] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A copper-containing wastewater treatment device, comprising a sedimentation tank (1), a sludge pressing mechanism located within the sedimentation tank (1), and a first crossbeam (5) and a second crossbeam (6) arranged crisscrossingly on the side wall of the sedimentation tank (1), characterized in that: The sludge pressing mechanism includes a sludge pressing cylinder (7) and a sludge pressing and drainage assembly located inside the sludge pressing cylinder (7); The sludge pressing cylinder (7) is mounted on the second crossbeam (6), and the second crossbeam (6) is equipped with a sludge unloading assembly; A sludge pressing trough (3) is provided at the center of the bottom of the sedimentation tank (1) directly below the bottom of the sludge pressing cylinder (7). The mud-pressing drainage assembly includes a movable mud-pressing plate (11) and a fixed cover (12). A water collection cover (16) is provided on the top surface of the fixed cover (12), and a water guide pipe (15) is connected to the center of the top surface of the fixed cover (12). The mud unloading assembly includes a movable mud scraper (25), and the upper half of the wall of the mud pressing cylinder (7) has a second through groove (9) for the mud scraper (25) to pass through.

2. The copper-containing wastewater treatment equipment according to claim 1, characterized in that: The sedimentation tank (1) has a first through groove (4) on one side wall for the second crossbeam (6) to pass through. The first crossbeam (5) and the second crossbeam (6) are bolted to the side wall of the sedimentation tank (1). The second crossbeam (6) has a guide hole (33) for the mud pressing cylinder (7) to pass through. The first crossbeam (5) is bolted with a hydraulic cylinder (10), and the output end of the hydraulic cylinder (10) is welded and fixed to the top wall of the mud pressing cylinder (7).

3. The copper-containing wastewater treatment equipment according to claim 1, characterized in that: The sedimentation tank (1) at the top edge of the sludge pressing tank (3) is provided with a sealing step (2), and the bottom of the sedimentation tank (1) is a conical structure.

4. The copper-containing wastewater treatment equipment according to claim 1, characterized in that: The bottom end of the pressing cylinder (7) is welded to a sealing cylinder (8) that matches the sealing step (2). The top wall of the pressing cylinder (7) is provided with a second through hole (20). The diameter of the sealing cylinder (8) is smaller than the diameter of the pressing cylinder (7). A drain pipe (32) is provided on the first crossbeam (5). The bottom end of the drain pipe (32) extends into the second through hole (20).

5. The copper-containing wastewater treatment equipment according to claim 1, characterized in that: The mud pressing plate (11) is welded and fixed to the inner wall of the bottom end of the fixed cover (12). Water guiding holes (13) are evenly opened on the mud pressing plate (11). A filter screen (14) is welded and fixed to the top surface of the mud pressing plate (11). The bottom surface of the mud pressing plate (11) has a texture. The fixing cover (12) is welded and fixed to the water guide pipe (15) and the water collection cover (16), and the outer diameter of the fixing cover (12) is consistent with the inner diameter of the sealing cylinder (8).

6. The copper-containing wastewater treatment equipment according to claim 1, characterized in that: The top of the water collection cover (16) is welded and fixed to the lifting plate (17). The lifting plate (17) has a first through hole (19) aligned with the second through hole (20). A set of first screw rods (18) runs through the lifting plate (17). The two ends of the first screw rods (18) are movably connected to the bearings on the inner wall of the mud pressing cylinder (7).

7. The copper-containing wastewater treatment equipment according to claim 1, characterized in that: The shovel (25) has a hollow square structure with open ends. The top surface of the shovel (25) facing the mud pressing cylinder (7) is provided with a cutting edge (26). Rotating shafts (27) are welded and fixed to the outer walls on both sides of the shovel (25).

8. The copper-containing wastewater treatment equipment according to claim 1, characterized in that: The second crossbeam (6) has a third through groove (21) and sliding grooves (29) on both sides of the second crossbeam (6). The second lead screw (22) is connected to the bearings on both ends of the third through groove (21). The second lead screw (22) has a protrusion (24) threaded through it. One end of the second lead screw (22) is connected to the output shaft gear of the second motor (31). The second motor (31) is bolted to the second crossbeam (6).

9. The copper-containing wastewater treatment equipment according to claim 1, characterized in that: The second crossbeam (6) is fitted with a movable frame (23) at one end. The movable frame (23) is a "U" shaped structure. The bottom end of the movable frame (23) is welded and fixed to the protrusion (24). The two sides of the movable frame (23) are connected to the rotating shaft (27) bearings. The two side walls of the movable frame (23) are provided with sliding blocks (28) that cooperate with the sliding groove (29). The first motor (30) is bolted to one side wall of the movable frame (23). The output shaft of the first motor (30) is connected to the rotating shaft (27).

10. A copper-containing wastewater treatment device according to claim 1, characterized in that: The water guide pipe (15) is designed vertically, and the distance between the top of the water guide pipe (15) and the lifting plate (17) is 1cm.

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