Electroplating wastewater biochemical treatment system
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHONGQING JACK ENVIRONMENTAL PROTECTION CO LTD
- Filing Date
- 2026-04-17
- Publication Date
- 2026-06-05
Smart Images
Figure CN122144972A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wastewater treatment technology, and specifically discloses a biochemical treatment system for electroplating wastewater. Background Technology
[0002] Electroplating wastewater refers to wastewater containing pollutants such as heavy metals, acids, alkalis, and organic matter generated during the electroplating process. Electroplating is widely used in manufacturing industries such as automotive, electronics, and machinery to improve the corrosion resistance, conductivity, and aesthetics of metal surfaces. However, the electroplating process generates large amounts of toxic and harmful wastewater, which, if discharged directly without treatment, can cause serious harm to the environment and human health.
[0003] For example, the invention disclosed in patent application CN215855638U discloses a biochemical treatment system for electroplating wastewater. This system includes a mixing tank, a hydrolysis acidification tank, an anoxic tank, an aerobic tank, and a sedimentation tank. The mixing tank is used to mix electroplating wastewater and activated sludge. The hydrolysis acidification tank has a first inlet and a first outlet, with the first inlet connected to the mixing tank. The anoxic tank has a second inlet, a second outlet, and a circulation inlet, with the second inlet connected to the first outlet. The aerobic tank has a third inlet, a third outlet, and a circulation outlet, with the third inlet connected to the second outlet and the circulation outlet connected to the circulation inlet. The sedimentation tank includes a fourth inlet, a fourth outlet, a sludge circulation port, and a sludge discharge port. The third outlet is connected to the fourth inlet and is used for discharging water. The sludge circulation port is connected to the mixing tank, and the sludge discharge port is used for discharging sludge. This biochemical treatment system for electroplating wastewater can improve the treatment effect of electroplating wastewater, thereby improving the quality of the treated water.
[0004] Currently, the electroplating wastewater treatment process mainly includes four stages: pretreatment, anaerobic treatment, aerobic treatment, and advanced treatment. After purifying the current wastewater, each stage not only needs to continue to transport the treated wastewater to the next stage, but also needs to discharge wastewater simultaneously. In order to prevent sediment and other impurities from entering the next stage of treatment during wastewater transportation, filtration is required. However, most filter screens are in fixed positions, and impurities easily accumulate in the filter screen area during effluent discharge, causing blockage of the filter screen pores and affecting the efficiency of transportation to the next stage. Summary of the Invention
[0005] In view of this, the purpose of the present invention is to provide a biochemical treatment system for electroplating wastewater, which can filter the treated wastewater when it is transported to the next stage, and the filtration process is not affected by sediment or suspended solids, thus preventing blockage of the wastewater transport. At the same time, after the wastewater is transported, the wastewater of the current treatment container can be discharged simultaneously to achieve overall linkage operation, improve synchronization, and reduce the cumbersome step-by-step operation.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a biochemical treatment system for electroplating wastewater, comprising a support mechanism, a waste discharge mechanism at the upper end of the support mechanism, and a wastewater treatment mechanism on the support mechanism, wherein the wastewater treatment mechanism is disposed on the waste discharge mechanism. A synchronous transmission mechanism is provided between the wastewater treatment mechanism and the waste discharge mechanism.
[0007] Furthermore, the support mechanism includes a base, a support frame is provided at the upper end of the base, and a support column is provided at the lower end of the horizontal section of the support frame. The support frame and the base are reinforced and fixed together by a first corner block, and a second corner block is provided at the inner corner of the support frame.
[0008] Furthermore, the waste discharge mechanism includes a discharge channel, one end of which is equipped with a sealing plate, and the other end of which is an open structure; A sealed bearing is installed through the surface of the sealing plate, and a discharge shaft is installed through the inside of the sealed bearing. A spiral blade is fixedly wound on the surface of the discharge shaft. The spiral blade is slidably attached to the inner wall of the discharge channel. The spiral blade can realize the spiral conveying of waste material, ensure the feeding rate, and prevent blockage when waste material is directly discharged through the discharge channel.
[0009] Furthermore, a motor is provided above the base, and a drive shaft is provided inside the motor. The outer end of the drive shaft is fixedly connected to the discharge shaft through a coupling. Several discharge inlets are provided through the upper end of the discharge channel.
[0010] Furthermore, the wastewater treatment mechanism includes a treatment container, which is positioned above the discharge channel; A sewage inlet is installed through the lower end of one side of the treatment container, and a first valve is installed on the surface of the sewage inlet. A sewage outlet is installed through the upper end of the other side of the treatment container, and a second valve is installed on the surface of the sewage outlet. A universal interface is installed through the lower end of the other side of the treatment container, and a third valve is installed on the surface of the universal interface.
[0011] Furthermore, the lower end of the processing container is a conical structure, and a waste discharge hole is provided at the lower end of the processing container. A waste discharge interface is also welded and fixed at the lower end of the processing container, and the upper end of the waste discharge interface covers the waste discharge hole. The lower end of the waste discharge port is connected to the material discharge inlet via a flange, and a fourth valve is installed on the surface of the waste discharge port; The sewage outlet is connected to a feed pipe via a flange at one end. A water pump is embedded in the middle of the feed pipe. The sewage outlet is located inside the treatment container and is fixedly connected to a pumping pipe at one end. The lower end of the pumping pipe extends into the treatment container, and the middle of the pumping pipe has a corrugated pipe structure.
[0012] Furthermore, the upper end of the processing container is covered with an end cap, and a vent is provided through one side of the upper end of the end cap. A fifth valve is provided on the surface of the vent.
[0013] Furthermore, an inner sleeve is provided through the surface of the end cap, and a connecting rod is provided through the inside of the inner sleeve. The upper ends of the two connecting rods are fixed to the same disc. A cylinder is also provided at the upper end of the end cap, and a piston rod for extension and retraction is provided inside the cylinder. The two piston rods are synchronously connected to the lower end of the disc. A positioning bearing is installed through the center of the disc, and a positioning shaft is installed through the inside of the positioning bearing. A first positioning sleeve is installed through the center of the end cover. The first positioning sleeve and the positioning shaft are interconnected and rotatably mounted.
[0014] Furthermore, a connecting frame is fixed to the lower end of the connecting rod, and the outer wall of the lower end port of the pumping pipe is fixedly connected to the connecting frame distributed on one side. A plate frame is fixed to the lower end of the two connecting frames, and the outer ring wall of the plate frame is slidably sleeved with the inner wall of the processing container. A filter plate is provided on the inner side of the plate frame. The surface of the filter plate has filter holes that penetrate through it. A second positioning sleeve is provided through the center of the filter plate. The second positioning sleeve is slidably sleeved with the positioning shaft. A strip is distributed at the lower end of the positioning shaft. A scraper is fixed at the upper end of the strip. The upper end of the scraper is in close contact with the lower surface of the filter plate. The scraper has an inner cavity, and rope rings are fixed at both the upper and lower ends of the inner cavity. A hanging rope is fixed to the surface of the rope ring, and a rope sleeve is fixed to the surface of the hanging rope. A steel ball is fixedly wrapped on the surface of the rope sleeve.
[0015] Furthermore, the synchronous transmission mechanism includes a first support bearing, two of which are symmetrically distributed along the lateral position of the support frame. The same transmission shaft is installed through the interior of the two first support bearings. A linkage pulley is fixedly sleeved at one end of the transmission shaft. A drive pulley is fixedly sleeved on the surface of the discharge shaft. The drive pulley and the linkage pulley are connected by belt transmission. A second support bearing is fixed at the lower end of the horizontal section of the support frame. A linkage shaft is installed through the interior of the second support bearing. A drive bevel gear is fixedly sleeved on the surface of the drive shaft. A linkage bevel gear is fixedly sleeved on the surface of the linkage shaft. The linkage bevel gear and the drive bevel gear are mutually driven. A linkage column is welded and fixed at the lower end of the linkage shaft. The positioning shaft has a groove inside, which has a hexagonal cross-section and is slidably sleeved with the linkage column. The discharge shaft rotates to pre-discharge the material, and the linkage shaft can rotate synchronously through the belt drive. The linkage shaft can also drive the linkage column to rotate. The shape limit of the groove and the linkage column allows the linkage column to drive the positioning shaft to rotate. In turn, the scraper can clean the lower end of the filter plate. Even when the filter plate moves downward for filtration, the scraper can still perform synchronous transmission operation.
[0016] The working principle and beneficial effects of this solution are as follows: 1. The wastewater treatment unit can accommodate wastewater through the treatment container, and multiple sets of treatment containers can be set up to be used in combination for pretreatment, anaerobic treatment, aerobic treatment and advanced treatment respectively. Filter plates are added inside the treatment containers, and with the filter holes distributed on the filter plates, after the current wastewater treatment step is completed, and when it is necessary to transport the treated wastewater to the next level, the sediment and suspended solids can be isolated from the treated water, ensuring that the sediment can remain in the current treatment container to the greatest extent. The filter plates will rise to the highest point at the beginning, and move downward after the treatment is completed. Through the form of pressure filtration, the treated wastewater can be filtered out to the upper layer, which is convenient for the pumping operation of the pumping pipe. The pumping pipe has a corrugated pipe structure, which can be extended or retracted in coordination with the movement of the filter plates. As described in section 1, during filtration through the filter plates, to prevent clogging of the filter pores by sediments or suspended solids during the filtration process, and to facilitate waste discharge from any or all processing containers after filtration, a motor drives the discharge shaft to rotate. This rotation directly drives the spiral blades to rotate within the discharge channel, preparing for waste discharge. Simultaneously, a belt drive and the cooperation of two pulleys enable the drive shaft to rotate normally. Further synchronization via two bevel gears allows the linkage shaft to drive the linkage column to rotate. Due to the shape of the linkage column, the positioning shaft can also be linked, and the positioning shaft can extend and retract relative to the linkage column. This allows the positioning shaft to move in tandem with the up-and-down movement of the filter plates, ensuring that the scraper continuously cleans the lower surface of the filter plates as they rise and fall, preventing the filter pores from becoming clogged. 3. As described in 2, when the scraper is rotating, it is also necessary to prevent the scraper from being adhered to by sediment or suspended matter. At the moment the scraper starts or stops, and when the scraper rotates at a differential speed, the steel balls suspended by the hanging rope inside the scraper can be affected by uneven forces, causing them to swing and simultaneously impact the inner wall of the scraper's cavity. This causes the scraper to vibrate, and through the vibration effect, the sediment or suspended matter that comes into contact with can be shaken off, reducing the occurrence of adhesion.
[0017] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description
[0018] Figure 1 This is an overall schematic diagram of the embodiment; Figure 2 For the example Figure 1 A schematic diagram showing the distribution of each institution; Figure 3 This is a schematic cross-sectional view of the discharge channel and processing container in an embodiment; Figure 4 This is a schematic diagram of the processing container in an embodiment; Figure 5 This is a schematic diagram showing the location of the water pump pipe in an embodiment. Figure 6 For the example Figure 3 Enlarged view of point A; Figure 7 For the example Figure 6 Enlarged view of point B; Figure 8 This is a schematic diagram of the distribution of scrapers and filter plates in an embodiment; Figure 9 This is a schematic diagram of the bevel gear section of the embodiment; Figure 10 This is a schematic diagram of the inner cavity of the scraper in the embodiment; Figure 11 This is a schematic diagram of the steel ball distribution in an embodiment.
[0019] The following are labeled in the attached diagram: 1. Support mechanism; 2. Waste discharge mechanism; 3. Wastewater treatment mechanism; 4. Synchronous transmission mechanism; 10. Base; 11. Support frame; 12. Support column; 13. First corner block; 14. Second corner block; 20. Discharge channel; 21. Sealing plate; 22. Sealed bearing; 23. Discharge shaft; 24. Spiral blade; 25. Motor; 26. Discharge inlet; 30. Processing container; 31. First valve; 32. Wastewater inlet; 33. Wastewater outlet; 34. Second valve; 37. Universal interface; 38. Third valve; 39. Waste discharge interface; 310. Fourth valve; 311. Water pump; 312. Feeding pipe; 313. Pumping pipe; 3001. End cap; 3002. Vent interface; 3003. Fifth valve 3004, Internal sleeve; 3005, Connecting rod; 3006, Cylinder; 3007, Disc; 3008, First positioning sleeve; 3009, Positioning shaft; 3010, Positioning bearing; 3011, Connecting frame; 3012, Plate frame; 3013, Filter plate; 3014, Second positioning sleeve; 3015, Filter hole; 3016, Slat; 3017, Scraper; 30171, Inner cavity; 30172, Rope ring; 30173, Hanging rope; 30174, Rope loop; 30175, Steel ball; 40, First support bearing; 41, Drive shaft; 42, Linkage pulley; 43, Belt; 44, Drive pulley; 45, Second support bearing; 46, Linkage shaft; 47, Drive bevel gear; 48, Linkage bevel gear; 49, Linkage column. Detailed Implementation
[0020] The following detailed description illustrates the specific implementation method: Example
[0021] like Figures 1 to 11 As shown, a biochemical treatment system for electroplating wastewater is disclosed, including a support mechanism 1, a waste discharge mechanism 2 is provided at the upper end of the support mechanism 1, a wastewater treatment mechanism 3 is also provided on the support mechanism 1, and the wastewater treatment mechanism 3 is provided on the waste discharge mechanism 2, and a synchronous transmission mechanism 4 is provided between the wastewater treatment mechanism 3 and the waste discharge mechanism 2.
[0022] The support mechanism 1 includes a base 10, and a support frame 11 is provided at the upper end of the base 10. The support frame 11 is a right-angle frame structure. The lower end of the support frame 11 is fixed to the surface of the base 10 by screws. The lower end of the horizontal section of the support frame 11 is provided with two support columns 12, which are distributed along one end of the support frame 11. The two ends of the support column 12 are respectively fixed to the surface of the support frame 11 and the surface of the base 10 by screws. The support frame 11 and the base 10 are reinforced and fixed by the first corner block 13. The first corner block 13 is fixed to the connection position of the support frame 11 and the base 10 by screws. A second corner block 14 is provided at the inner corner of the support frame 11. The second corner block 14 is fixed to the surface of the support frame 11 by screws. The second corner block 14 can enhance the support strength of the bent part of the support frame 11.
[0023] The waste discharge mechanism 2 includes a discharge channel 20. The lower end of the discharge channel 20 is fixedly assembled with the upper end of the base 10 through a bracket. The discharge channel 20 is a circular channel structure. One end of the discharge channel 20 is provided with a sealing plate 21. The surface of the sealing plate 21 is welded to the end of the discharge channel 20. The other end of the discharge channel 20 is an open structure for normal waste discharge. A sealing bearing 22 is provided through the surface of the sealing plate 21. The outer ring wall of the sealing bearing 22 is fixed to the sealing plate 21 by welding. A discharge shaft 23 is provided through the inside of the sealing bearing 22. The surface of the discharge shaft 23 is interference-fitted with the inner ring wall of the sealing bearing 22. A spiral blade 24 is fixedly wound on the surface of the discharge shaft 23. The spiral blade 24 can realize the spiral conveying of waste, ensure the feeding rate and prevent blockage when waste is directly discharged through the discharge channel 20. The spiral blade 24 is slidably attached to the inner wall of the discharge channel 20. A motor 25 is installed above the base 10. The lower end of the outer wall of the motor 25 is fixedly mounted to the surface of the base 10 via a bracket. The motor 25 has a drive shaft inside. The outer end of the drive shaft is fixedly connected to the discharge shaft 23 via a coupling. Several discharge inlets 26 are provided at the upper end of the discharge channel 20. The connection between the discharge inlets 26 and the discharge channel 20 is fixed by welding. The discharge inlets 26 are mainly used for the treatment containers 30 of various sewages. After treatment, the remaining material is discharged in the same way.
[0024] The wastewater treatment unit 3 includes a treatment container 30, which is a cylindrical structure. The treatment container 30 is located above the discharge channel 20, and the number of treatment containers 30 is the same as the number of discharge inlets 26, and their positions correspond one-to-one. The outer ring wall of the treatment container 30 is also fixedly connected to the upper end of the base 10 through supports distributed on both sides. A wastewater inlet 32 is provided through the lower end of one side of the treatment container 30. The connection between the wastewater inlet 32 and the treatment container 30 is fixed by welding. A first valve 31 is provided on the surface of the wastewater inlet 32, and the valve core of the first valve 31 is embedded inside the wastewater inlet 32. A wastewater outlet 33 is provided through the upper end of the other side of the treatment container 30. The connection between the wastewater outlet 33 and the treatment container 30 is fixed by welding. A second valve 34 is provided on the surface of the wastewater outlet 33, and the valve core of the second valve 34 is embedded inside the wastewater outlet 33. A universal interface 37 is provided through the lower end of the other side of the treatment container 30. The universal interface 37 can be connected to external equipment according to the actual treatment steps of the treatment container 30. For example, when chemical precipitation is required, chemical raw materials can be transported. When aeration for aerobic treatment is required, gas can be transported. A third valve 38 is provided on the surface of the universal interface 37, and the valve core of the third valve 38 is embedded and fixed inside the universal interface 37. The lower end of the processing container 30 has a conical structure, which facilitates centralized discharge during waste discharge. The lower end of the processing container 30 is provided with a waste discharge hole, and a waste discharge interface 39 is also welded and fixed to the lower end of the processing container 30. The upper end of the waste discharge interface 39 covers the waste discharge hole, and the lower end of the waste discharge interface 39 is connected to the discharge inlet 26 through a flange. A fourth valve 310 is provided on the surface of the waste discharge interface 39, and the valve core of the fourth valve 310 is embedded and fixed inside the waste discharge interface 39. The end flange of the sewage outlet 33 is connected to a feed pipe 312. The other end of the feed pipe 312 is connected to the sewage inlet 32 of the next-stage treatment container 30. After the current sewage is treated, the next stage of treatment and transportation can be carried out. A water pump 311 is embedded in the middle of the feed pipe 312. The outer wall of the water pump 311 is fixedly assembled with the outer wall of the treatment container 30 through a bracket. The end of the sewage outlet 33 located inside the treatment container 30 is fixedly connected to a pumping pipe 313. The lower end of the pumping pipe 313 extends into the interior of the treatment container 30. The middle part of the pumping pipe 313 has a corrugated pipe structure, which can be stretched or retracted appropriately to ensure stable pumping inside the treatment container 30. The upper end of the processing container 30 is covered with an end cap 3001. The edge of the end cap 3001 is fixedly assembled to the processing container 30 by screws. A vent 3002 is provided through one side of the upper end of the end cap 3001. The connection between the vent 3002 and the end cap 3001 is fixed by welding. A fifth valve 3003 is provided on the surface of the vent 3002. The valve core of the fifth valve 3003 is embedded inside the vent 3002. An inner sleeve 3004 is provided through the surface of the end cap 3001. The inner sleeves 3004 are symmetrically distributed along the surface of the end cap 3001. The connection between the inner sleeves 3004 and the end cap 3001 is fixed by welding. A connecting rod 3005 is provided through the inside of the inner sleeve 3004. The upper ends of the two connecting rods 3005 are fixed with the same disc 3007, which serves as a support. A cylinder 3006 is also provided at the upper end of the end cap 3001. The cylinders 3006 are symmetrically distributed along the upper end of the end cap 3001. The lower ends of the cylinders 3006 are fixed to the surface of the end cap 3001 by screws. A piston rod for extension and retraction is provided inside the cylinder 3006. The two piston rods are synchronously connected to the lower ends of the disc 3007. By extending and retracting the piston rods of the cylinders 3006, the connecting rods 3005 can move up and down within the inner sleeve 3004. A positioning bearing 3010 is installed through the center of the disc 3007. The outer ring wall of the positioning bearing 3010 is fixed to the disc 3007 by screws. A positioning shaft 3009 is installed through the inside of the positioning bearing 3010. The surface of the positioning shaft 3009 is interference-fitted with the inner ring wall of the positioning bearing 3010. A first positioning sleeve 3008 is installed through the center of the end cover 3001. The connection between the first positioning sleeve 3008 and the end cover 3001 is fixed by welding. The first positioning sleeve 3008 and the positioning shaft 3009 are interconnected and rotatably mounted. The lower end of the connecting rod 3005 is fixed with a connecting frame 3011. The connecting frame 3011 is a right-angle frame structure. The outer wall of the lower end of the water pump pipe 313 is fixedly connected to the connecting frame 3011 distributed on one side. The water pump pipe 313 can be stretched or retracted as the connecting frame 3011 moves up and down. This is mainly to ensure the stability of water pumping in the treatment container 30. The lower ends of the two connecting frames 3011 are fixed with a plate frame 3012. The outer ring wall of the plate frame 3012 is slidably sleeved with the inner wall of the treatment container 30. A filter plate 3013 is provided on the inner side of the plate frame 3012. The edge of the filter plate 3013 is welded and fixed to the inner side of the plate frame 3012. The surface of the filter plate 3013 has filter holes 3015 that penetrate through it. A second positioning sleeve 3014 is provided through the center of the filter plate 3013. The connection between the second positioning sleeve 3014 and the filter plate 3013 is fixed by welding. The second positioning sleeve 3014 and the positioning shaft 3009 are slidably sleeved together. The lower end of the positioning shaft 3009 is provided with strips 3016. One end of the strips 3016 is welded and fixed to the surface of the positioning shaft 3009. There are at least four strips 3016, which are evenly distributed along the surface of the positioning shaft 3009. A scraper 3017 is fixed to the upper end of the strips 3016. The upper end of the scraper 3017 is in close contact with the lower surface of the filter plate 3013. The scraper 3017 has an inner cavity 30171 inside. Rope rings 30172 are fixed at both the upper and lower ends of the inner cavity 30171. A hanging rope 30173 is fixed to the surface of the rope rings 30172. The hanging rope 30173 is made of plastic rope material. A rope sleeve 30174 is fixedly attached to the surface of the hanging rope 30173. A steel ball 30175 is fixedly wrapped around the surface of the rope sleeve 30174. When the scraper 3017 cleans the blockage at the lower end of the filter plate 3013, the steel ball 30175 impacts the inner cavity 30171 due to the shaking effect of the hanging rope 30173. This causes the scraper 3017 to vibrate. This vibration prevents sediment from adhering to the surface of the scraper 3017 during each rotation start-up, stop, and differential speed operation.
[0025] The synchronous transmission mechanism 4 includes a first support bearing 40. The outer wall of the first support bearing 40 is fixed to the surface of the support frame 11 by a bracket. Two first support bearings 40 are symmetrically distributed along the lateral position of the support frame 11. The same transmission shaft 41 is installed through the interior of the two first support bearings 40. A linkage pulley 42 is fixedly sleeved on one end of the transmission shaft 41. A drive pulley 44 is fixedly sleeved on the surface of the discharge shaft 23. The drive pulley 44 and the linkage pulley 42 are connected by a belt 43. A second support bearing 45 is fixed to the lower end of the transverse section of the support frame 11. The outer ring wall of the second support bearing 45 is fixedly assembled to the surface of the support frame 11 via a bracket. A linkage shaft 46 is installed through the interior of the second support bearing 45. The linkage shaft 46 is interference-fitted with the inner wall of the second support bearing 45. A drive bevel gear 47 is fixedly sleeved on the surface of the drive shaft 41, and a linkage bevel gear 48 is fixedly sleeved on the surface of the linkage shaft 46. The linkage bevel gear 48 and the drive bevel gear 47 are mutually driven. A linkage column 49 is welded and fixed to the lower end of the linkage shaft 46. The linkage column 49 has a hexagonal prism structure. The inner part of the positioning shaft 3009... The filter plate 3013 has a column groove with a hexagonal cross-section and is slidably sleeved with the linkage column 49. The discharge shaft 23 rotates to pre-discharge the material. The linkage shaft 46 can rotate synchronously through the transmission effect of the belt 43. The linkage shaft 46 can also drive the linkage column 49 to rotate. The shape limit of the column groove and the linkage column 49 allows the linkage column 49 to drive the positioning shaft 3009 to rotate. In turn, the scraper 3017 can clean the lower end of the filter plate 3013. Even when the filter plate 3013 moves downward to press the filter, the scraper 3017 can still perform synchronous transmission operation.
[0026] In practice When biochemical treatment of electroplating wastewater is required, the wastewater is first sent to the leftmost treatment container 30, where it is then... Figure 2As can be seen, after the pretreatment step, the wastewater is then sequentially sent to the three subsequent treatment containers 30 to achieve anaerobic treatment, aerobic treatment and advanced treatment. After each treatment step is completed, the treated wastewater will produce sediment or suspended solids. In order to improve the cleanliness of the wastewater when it enters the next treatment step, filter plates 3013 are installed in the treatment container 30 and the wastewater is filtered through the filter holes 3015 on them. During wastewater treatment, the filter plate 3013 is raised to its highest position and separated from the wastewater surface to avoid confusion between the upper and lower layers of wastewater and sediment during the reaction. After treatment, the piston rod of the cylinder 3006 retracts, allowing the disc 3007 to drive the chain connecting rods 3005 to move downwards. The connecting rods 3005, in conjunction with the built-in sleeve 3004, can achieve through-extension and extension, thereby moving the filter plate 3013 downwards. This allows the filter holes 3015 to press-filter the wastewater, improving the filtration effect. During the water flow through the filter holes 3015, sediment and suspended solids will accumulate at the lower end of the filter holes 3015, causing blockage. The rotation of the scraper 3017 can clean the lower end of the filter holes 3015, removing the blocked sediment or suspended solids. The rotation process of scraper 3017 is based on the synchronous operation of waste discharge mechanism 2. After the wastewater treatment in the current treatment container 30 is completed and the wastewater is transported to the next level, a small amount of wastewater will remain in the current treatment container 30. This wastewater is the accumulation of sediment and suspended solids. In order to remove the filtered wastewater, the wastewater in the treatment container 30 can be discharged simultaneously. The power supply of motor 25 is turned on, so that the rotating shaft of motor 25 can drive the discharge shaft 23 to rotate through the coupling. Thus, the spiral blade 24 can rotate in the discharge channel 20, thereby achieving the effect of spiral feeding. While the discharge shaft 23 rotates, the transmission shaft 41 can rotate normally through the drive of the belt 43 and the cooperation of the two pulleys. Then, through the further synchronous linkage of the two bevel gears, the linkage shaft 46 can drive the linkage column 49 to rotate. Due to the shape of the linkage column 49, the positioning shaft 3009 can be linked synchronously. The positioning shaft 3009 can also rotate relative to the linkage column 49, so that the positioning shaft 3009 can be displaced according to the up and down movement of the filter plate 3013. This ensures that the scraper 3017 can continuously scrape the lower end surface of the filter plate 3013 as the filter plate 3013 rises and falls, ensuring that the filter holes 3015 are not blocked.
[0027] When the scraper 3017 rotates, it is also necessary to prevent the scraper 3017 from being adhered to by sediment or suspended matter. At the moment when the scraper 3017 starts or stops, and when the scraper 3017 rotates at a differential speed, the steel ball 30175 suspended by the hanging rope 30173 inside can be affected by uneven force, causing it to swing and simultaneously hit the inner wall of the inner cavity 30171 of the scraper 3017. This causes the scraper 3017 to vibrate. Through the vibration effect, the sediment or suspended matter that comes into contact can be shaken off, reducing the occurrence of adhesion.
[0028] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics in the solutions is not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or its practicality.
Claims
1. A biochemical treatment system for electroplating wastewater, characterized in that: It includes a support mechanism, and a waste discharge mechanism is provided at the upper end of the support mechanism. A wastewater treatment mechanism is also provided on the support mechanism, and the wastewater treatment mechanism is located on the waste discharge mechanism. A synchronous transmission mechanism is provided between the wastewater treatment mechanism and the waste discharge mechanism.
2. The electroplating wastewater biochemical treatment system according to claim 1, characterized in that: The support mechanism includes a base, a support frame is provided at the upper end of the base, and a support column is provided at the lower end of the horizontal section of the support frame. The support frame and the base are reinforced and fixed together by a first corner block, and a second corner block is provided at the inner corner of the support frame.
3. The electroplating wastewater biochemical treatment system according to claim 2, characterized in that: The waste discharge mechanism includes a discharge channel, one end of which is equipped with a sealing plate, and the other end of which is an open structure. A sealing bearing is installed through the surface of the sealing plate, and a discharge shaft is installed through the inside of the sealing bearing. A spiral blade is fixedly wound on the surface of the discharge shaft, and the spiral blade is slidably attached to the inner wall of the discharge channel.
4. The electroplating wastewater biochemical treatment system according to claim 3, characterized in that: A motor is installed above the base, and a drive shaft is installed inside the motor. The outer end of the drive shaft is fixedly connected to the discharge shaft via a coupling. Several discharge inlets are provided through the upper end of the discharge channel.
5. The electroplating wastewater biochemical treatment system according to claim 4, characterized in that: The wastewater treatment mechanism includes a treatment container, which is positioned above the discharge channel; A sewage inlet is installed through the lower end of one side of the treatment container, and a first valve is installed on the surface of the sewage inlet. A sewage outlet is installed through the upper end of the other side of the treatment container, and a second valve is installed on the surface of the sewage outlet. A universal interface is installed through the lower end of the other side of the treatment container, and a third valve is installed on the surface of the universal interface.
6. The electroplating wastewater biochemical treatment system according to claim 5, characterized in that: The lower end of the processing container is a conical structure, and a waste discharge hole is opened at the lower end of the processing container. A waste discharge interface is also welded and fixed at the lower end of the processing container, and the upper end of the waste discharge interface covers the waste discharge hole. The lower end of the waste discharge port is connected to the material discharge inlet via a flange, and a fourth valve is installed on the surface of the waste discharge port; The sewage outlet is connected to a feed pipe via a flange at one end. A water pump is embedded in the middle of the feed pipe. The sewage outlet is located inside the treatment container and is fixedly connected to a pumping pipe at one end. The lower end of the pumping pipe extends into the treatment container, and the middle of the pumping pipe has a corrugated pipe structure.
7. The electroplating wastewater biochemical treatment system according to claim 6, characterized in that: The upper end of the processing container is covered with an end cap, and a vent is provided through one side of the upper end of the end cap. A fifth valve is provided on the surface of the vent.
8. The electroplating wastewater biochemical treatment system according to claim 7, characterized in that: An inner sleeve is provided through the surface of the end cap, and a connecting rod is provided through the inside of the inner sleeve. The upper ends of the two connecting rods are fixed to the same disc. A cylinder is also provided at the upper end of the end cap. A piston rod for extension and retraction is provided inside the cylinder. The two piston rods are synchronously connected to the lower end of the disc. A positioning bearing is installed through the center of the disc, and a positioning shaft is installed through the inside of the positioning bearing. A first positioning sleeve is installed through the center of the end cover. The first positioning sleeve and the positioning shaft are interconnected and rotatably mounted.
9. The electroplating wastewater biochemical treatment system according to claim 8, characterized in that: The lower end of the connecting rod is fixed with a connecting frame, and the outer wall of the lower end of the pumping pipe is fixedly connected to the connecting frame distributed on one side. The lower ends of the two connecting frames are fixed with a plate frame, and the outer ring wall of the plate frame is slidably sleeved with the inner wall of the processing container. A filter plate is provided on the inner side of the plate frame. The surface of the filter plate has filter holes that penetrate through it. A second positioning sleeve is provided through the center of the filter plate. The second positioning sleeve is slidably sleeved with the positioning shaft. A strip is distributed at the lower end of the positioning shaft. A scraper is fixed at the upper end of the strip. The upper end of the scraper is in close contact with the lower surface of the filter plate. The scraper has an inner cavity, and rope rings are fixed at both the upper and lower ends of the inner cavity. A hanging rope is fixed to the surface of the rope ring, and a rope sleeve is fixed to the surface of the hanging rope. A steel ball is fixedly wrapped on the surface of the rope sleeve.
10. The electroplating wastewater biochemical treatment system according to claim 9, characterized in that: The synchronous transmission mechanism includes a first support bearing. Two first support bearings are symmetrically distributed along the lateral position of the support frame. The same transmission shaft is installed through the interior of the two first support bearings. A linkage pulley is fixedly sleeved at one end of the transmission shaft. A drive pulley is fixedly sleeved on the surface of the discharge shaft. The drive pulley and the linkage pulley are connected by belt transmission. A second support bearing is fixed at the lower end of the horizontal section of the support frame. A linkage shaft is installed through the interior of the second support bearing. A drive bevel gear is fixedly sleeved on the surface of the drive shaft. A linkage bevel gear is fixedly sleeved on the surface of the linkage shaft. The linkage bevel gear and the drive bevel gear are mutually driven. A linkage column is welded and fixed at the lower end of the linkage shaft. The positioning shaft has a groove inside, the groove has a hexagonal cross-section, and it is slidably sleeved with the linkage column.