Electroplating wastewater recovery device based on flocculent precipitation

Abstract

The invention relates to the technical field of solid-liquid separation, in particular to an electroplating wastewater recovery device based on flocculent precipitation. Comprising a mounting frame, a settling tank, a water inlet pipe, a water outlet pipe, a baffle ring, a controller, filter cloth I, a lifting rod, a conical pressing block and the like, the settling tank is connected to the mounting frame, the water inlet pipe and the water outlet pipe are connected to the settling tank, the baffle ring is connected to the lower end of the settling tank, the controller is mounted on the mounting frame, and the filter cloth I is connected into the settling tank and located below the water outlet pipe; the conical pressing block is connected to the upper end of the lifting rod. Electroplating wastewater in the settling tank can be subjected to rapid solid-liquid separation by utilizing centrifugal force, and then sediments can be squeezed and discharged in batches by controlling the lifting rod and the conical pressing block to lift in a reciprocating manner, so that the sediments in the settling tank do not need to be regularly cleaned manually, the working efficiency is improved, and the labor intensity of workers is reduced. Moreover, the water content of precipitates can be reduced, the treatment effect is improved, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of solid-liquid separation, and in particular to an electroplating wastewater recovery device based on flocculation precipitation. Background Art

[0002] Flocculation sedimentation is a commonly used physical method for electroplating wastewater treatment. By adding flocculants to the electroplating wastewater, the fine suspended particles in the electroplating wastewater can be aggregated to form larger floc sludge. The electroplating wastewater is then allowed to stand to allow the sludge to settle to the bottom, while the clear liquid can be discharged from above. This solid-liquid separation method is time-consuming.

[0003] The patent publication number is CN115634479B, which discloses a sedimentation tank for electroplating wastewater treatment, including a sedimentation tank body, the inner side of the sedimentation tank body is hollow, one side of the sedimentation tank body is installed with a water inlet pipe penetrating to the inner side, the other side of the sedimentation tank body is fixedly installed with a drainage pipe penetrating to the inner side, the inner side of the sedimentation tank body is fixedly installed with a partition 1 and a partition 2, the inner bottom of the sedimentation tank body is fixedly installed with a sedimentation tank, and the front end of the sedimentation tank body is fixedly installed with a mud discharge pipe penetrating to the inner side of the sedimentation tank. When the above patent is in use, wastewater is sent into the sedimentation tank through the water inlet pipe, and the flow direction of the wastewater is changed by partitions 1 and 2, so that the wastewater enters the sedimentation tank of the sedimentation seat, so that large-volume particles in the wastewater are attached to the sedimentation tank, and the lighter wastewater is discharged through the drainage pipe. The large-particle waste precipitated on the top surface of the sedimentation tank can be discharged outward through the mud discharge pipe due to gravity, completing the solid-liquid separation of the wastewater, but the above patent has certain defects: 1. When the baffle plate 2 of the above patent intercepts wastewater, the sediment in the wastewater will gradually accumulate on the side of the baffle plate 2, which can easily lead to the blockage of the water inlet pipe. Therefore, it is necessary to manually clean the sediment accumulated on the side of the baffle plate 2 regularly, so that the sediment in the wastewater cannot be continuously filtered and treated, and the working efficiency is low; 2. When the sediment adhering to the sedimentation tank is discharged through the mud discharge pipe, part of the wastewater in the sedimentation tank will be brought out, resulting in a higher water content in the sediment. This will not only affect the treatment effect of the wastewater, but also require additional equipment to dehydrate the sediment with a higher water content, which is troublesome to operate and has a high cost. Summary of the invention

[0004] In view of this, the present invention provides an electroplating wastewater recovery device based on flocculation sedimentation, which can overcome the shortcomings of the existing sedimentation tank that when in use, the accumulated sediment needs to be cleaned manually on a regular basis, the sediment in the wastewater cannot be filtered continuously, and the discharged sediment has a high water content.

[0005] The technical implementation scheme of the present invention is: a flocculation sedimentation-based electroplating wastewater recovery device, including a mounting frame, a sedimentation tank, an inlet pipe and an outlet pipe, the sedimentation tank is connected to the mounting frame, the inlet pipe and the outlet pipe are both connected to the sedimentation tank, and also includes a baffle ring, a controller, a filter cloth I, a lifting rod, a conical pressure block, a lifting assembly, a blocking mechanism and a shaking mechanism, the baffle ring is connected to the lower end of the sedimentation tank, the controller is installed on the mounting frame, the filter cloth I is connected to the sedimentation tank, and the filter cloth I is located below the outlet pipe, the lifting rod is slidably arranged at the lower end of the sedimentation tank, the conical pressure block is connected to the upper end of the lifting rod, and drainage channels are opened in the conical pressure block and the lifting rod, the lifting assembly is used to drive the lifting rod to lift and lower, the blocking mechanism is used to block the lower end of the sedimentation tank, and the shaking mechanism is used to drive the filter cloth I to shake.

[0006] More preferably, the lifting assembly includes a fixed frame, a driving motor, a turntable and a guide frame, the fixed frame is connected to the mounting frame, the driving motor is connected to the fixed frame, the turntable is rotatably connected to the fixed frame, and the end of the rotating shaft of the turntable is connected to the output shaft of the driving motor, the guide frame is connected to the lower end of the lifting rod, and the guide frame and the turntable are slidably matched.

[0007] More preferably, the blocking mechanism includes a fixed ring, an electric push rod, a conical block and a control component, the fixed ring is connected to the sedimentation tank, the electric push rod is symmetrically connected to the fixed ring, the conical block is connected to the telescopic rod of the electric push rod, the top surface of the conical block is in contact with the bottom surface of the blocking ring, and the lifting rod slides through the conical block, and the control component is used to control the electric push rod to drive the conical block to move.

[0008] More preferably, the control component includes a sliding pressure block, an elastic membrane, a compression spring, a hose and a control switch. The sliding pressure block is slidably connected to the lifting rod, and the sliding pressure block is located below the conical pressure block. A circular hole is opened on the sliding pressure block. The two ends of the elastic membrane are respectively connected to the top surface of the sliding pressure block and the bottom surface of the conical pressure block. The compression spring is wound around the outside of the lifting rod, and the compression spring connects the sliding pressure block and the conical pressure block. The compression spring is located on the inner side of the elastic membrane, the hose connects the circular hole and the drainage channel, and the control switch is installed on the bottom surface of the conical pressure block.

[0009] More preferably, the shaking mechanism includes a support frame, a rotating rod, blades, a fixed tube and a stabilizing assembly. The support frame is connected to the sedimentation tank and is located below the filter cloth I. The rotating rod is rotatably connected to the support frame, and a slide groove is provided at the upper end of the rotating rod. The blades are connected to the rotating rod at circumferential intervals. The fixed tube is connected to the bottom surface of the filter cloth I. A protrusion is also provided in the fixed tube, and the protrusion slides in the slide groove. The stabilizing assembly is used to stabilize the shape of the filter cloth I.

[0010] More preferably, the stabilizing assembly includes a mounting ring, a connecting rod and a lifting block, the mounting ring is connected to the sedimentation tank, and the mounting ring is located above the filter cloth I, the connecting rod is connected to the inner wall of the mounting ring, the lifting block is connected to the top surface of the filter cloth I, and the lifting block is slidably connected to the connecting rod.

[0011] More preferably, it also includes a rotating ring, filter cloth II, filter cloth III, a fixed block, a wedge block and a torsion spring. The rotating ring is rotatably connected to the sliding pressure block. A through hole is opened on the rotating ring, and the through hole corresponds to the circular hole. The filter cloth II is connected to the bottom surface of the circular hole, the filter cloth III is connected to the top surface of the drainage channel, the fixed block is connected to the top surface of the rotating ring, and the fixed block slides through the top surface of the sliding pressure block, the wedge block is connected to the lifting rod, and the wedge block is in contact with the fixed block, the torsion spring is wrapped around the outside of the lifting rod, and the torsion spring connects the fixed block and the sliding pressure block.

[0012] More preferably, it also includes a scraper frame, a support rod, a buffer spring, a feed ramp, a vibration motor, a rubber membrane and a guide ring. The scraper frame is connected to the lower end of the rotating rod, and the scraper frame contacts the inner wall of the sedimentation tank. The support rod is symmetrically connected to the mounting frame and the fixed frame respectively. The feed ramp is connected to the top surface of the support rod through the buffer spring, and the feed ramp is located below the sedimentation tank. The vibration motor is installed on the bottom surface of the feed ramp. The guide ring is connected to the feed ramp through the rubber membrane, and the lifting rod is slidably connected to the guide ring.

[0013] The beneficial effects of the present invention are as follows: the present invention can quickly separate the electroplating wastewater in the sedimentation tank into solid and liquid by utilizing centrifugal force, and then can squeeze and discharge the sediment in batches by controlling the lifting rod and the conical pressing block to lift and lower back and forth, thereby eliminating the need for manual regular cleaning of the sediment in the sedimentation tank, thereby improving work efficiency, reducing the water content of the sediment, improving treatment effects, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention.

[0015] Figure 2 It is a cross-sectional view of the sedimentation tank of the present invention.

[0016] Figure 3 It is a cross-sectional view of the lifting rod and the conical pressing block of the present invention.

[0017] Figure 4 It is a cross-sectional view of the turntable of the present invention.

[0018] Figure 5 It is a schematic diagram of the installation of the blocking mechanism of the present invention.

[0019] Figure 6 The figure is a schematic diagram of the installation of the compression spring, the hose and the control switch of the present invention.

[0020] Figure 7It is a bottom view of the sliding pressing block of the present invention.

[0021] Figure 8 It is a schematic diagram of the installation of the shaking mechanism of the present invention.

[0022] Fig. 9 It is a schematic diagram of the separation structure of the rotating rod and the fixed tube of the present invention.

[0023] Fig.10 It is a cross-sectional view of the lifting rod, the conical pressing block and the sliding pressing block of the present invention.

[0024] Fig.11 It is a schematic diagram of the specific structure of the rotating ring, filter cloth II, fixed block and wedge block of the present invention.

[0025] Fig.12 The figure is a schematic diagram of the installation of the scraper, the material discharging inclined plate, the vibration motor and the guide ring of the present invention.

[0026] Among them, the above-mentioned drawings include the following figure marks: 1-mounting frame, 2-sedimentation tank, 201-blocking ring, 3-water inlet pipe, 4-water outlet pipe, 5-controller, 6-filter cloth I, 7-lifting rod, 8-conical pressure block, 9-drainage channel, 10-fixed frame, 11-drive motor, 12-turntable, 13-guide frame, 14-fixing ring, 15-electric push rod, 16-conical blocking block, 17-sliding pressure block, 1701-circular hole, 18-elastic membrane, 19-compression spring, 20-hose, 2 1-control switch, 22-support frame, 23-rotating rod, 2301-slide, 24-blade, 25-fixed tube, 2501-bump, 26-mounting ring, 27-connecting rod, 28-lifting block, 29-rotating ring, 30-through hole, 31-filter cloth II, 32-filter cloth III, 33-fixed block, 34-wedge block, 35-torsion spring, 36-scraper, 37-support rod, 38-buffer spring, 39-unloading inclined plate, 40-vibration motor, 41-rubber membrane, 42-guide ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment: A device for recycling electroplating wastewater based on flocculation and sedimentation, such as Figure 1-Figure 9As shown, it includes a mounting frame 1, a sedimentation tank 2, a water inlet pipe 3 and a water outlet pipe 4. The sedimentation tank 2 is connected to the upper part of the mounting frame 1, and the lower part of the sedimentation tank 2 is conical. The water inlet pipe 3 is connected to the upper left part of the sedimentation tank 2, and the water inlet pipe 3 is inclined. The water outlet pipe 4 is connected to the top surface of the sedimentation tank 2. The sedimentation tank 2, the water inlet pipe 3 and the water outlet pipe 4 cooperate with the partial principle of the hydrocyclone to enable the electroplating wastewater to enter the sedimentation tank 2 through the water inlet pipe 3. The electroplating wastewater can rotate inside the sedimentation tank 2 to form a vortex. This rotation movement The centrifugal force generated by the movement of the electroplating wastewater is large. Because the sediment in the electroplating wastewater is heavy, the sediment will be pushed to the inner wall of the sedimentation tank 2 by a large centrifugal force, and can be precipitated downward along the inner wall of the sedimentation tank 2, while the centrifugal force on the clear liquid is small, so most of the clear liquid will remain in the center of the sedimentation tank 2, thereby forming an upward internal vortex and being discharged outward through the outlet pipe 4, so that the solid-liquid separation process of the electroplating wastewater can be quickly completed; it also includes a retaining ring 201, a controller 5, a filter cloth I6, a lifting rod 7, a cone The shaped pressing block 8, the lifting assembly, the blocking mechanism and the shaking mechanism, the blocking ring 201 is connected to the lower end of the inner wall of the sedimentation tank 2, and the diameter of the blocking ring 201 gradually decreases from bottom to top, so that the inner wall of the blocking ring 201 is an inclined surface, the controller 5 is installed on the upper front side of the mounting frame 1, the filter cloth I6 is connected to the upper side of the inside of the sedimentation tank 2, and the filter cloth I6 is located below the outlet pipe 4, so that before the clear liquid is discharged outward through the outlet pipe 4, the filter cloth I6 can filter the clear liquid to prevent the sediment with smaller particles from being discharged outward with the outlet pipe 4, and the lifting rod 7 slides It is movably arranged at the lower end of the sedimentation tank 2 and can move up and down. The conical pressing block 8 is connected to the upper end of the lifting rod 7, and the diameter of the conical pressing block 8 gradually decreases from bottom to top, so as to prevent the sediment in the sedimentation tank 2 from accumulating on the conical pressing block 8. The bottom diameter of the conical pressing block 8 is consistent with the diameter of the lower end of the sedimentation tank 2, and a drainage channel 9 is opened between the inside of the conical pressing block 8 and the upper end of the lifting rod 7. The lifting assembly is used to drive the lifting rod 7 to lift and lower, the blocking mechanism is used to block the lower end of the sedimentation tank 2, and the shaking mechanism is used to drive the filter cloth I6 to shake.

[0029] like Figure 1 , Figure 2 and Figure 4 As shown, the lifting assembly includes a fixed frame 10, a driving motor 11, a turntable 12 and a guide frame 13. The fixed frame 10 is connected to the lower part of the mounting frame 1, the driving motor 11 is connected to the upper rear part of the fixed frame 10, the turntable 12 is rotatably connected to the upper part of the fixed frame 10, and the rear end of the rotating shaft of the turntable 12 is connected to the output shaft of the driving motor 11, the guide frame 13 is connected to the lower end of the lifting rod 7, a transverse groove is provided on the guide frame 13, and the upper part of the turntable 12 is penetrated into the transverse groove of the guide frame 13, so that the rotation of the turntable 12 can drive the guide frame 13 to reciprocate up and down.

[0030] like Figure 5-Figure 7As shown, the blocking mechanism includes a fixing ring 14, an electric push rod 15, a conical block 16 and a control component. The lower part of the outer wall of the sedimentation tank 2 is connected with a fixing ring 14, and the electric push rods 15 are connected to the left and right sides of the fixing ring 14. A conical block 16 is connected between the telescopic rods of the two electric push rods 15. The surface of the conical block 16 fits the bottom surface of the sedimentation tank 2, and the top surface of the conical block 16 contacts the bottom surface of the blocking ring 201, so that the lower end of the sedimentation tank 2 can be blocked to prevent the electroplating wastewater in the sedimentation tank 2 from leaking downward. The lifting rod 7 slides through the middle of the conical block 16, and the control component is used to control the electric push rod 15 to drive the conical block 16 to move; the control component includes a sliding pressure block 17, an elastic membrane 18, a compression spring 19, a hose 20 and a control switch 21. The sliding pressure block 17 is slidably connected to the upper part of the lifting rod 7, and the sliding pressure block 17 is located at the conical pressure Below the block 8, there are two circular holes 1701 spaced apart on the sliding pressure block 17, an elastic membrane 18 is connected between the top surface of the sliding pressure block 17 and the bottom surface of the conical pressure block 8, a compression spring 19 is wound around the outside of the lifting rod 7, and the two ends of the compression spring 19 are respectively connected to the sliding pressure block 17 and the conical pressure block 8, the compression spring 19 is located on the inner side of the elastic membrane 18, the elastic membrane 18 can surround the space between the top surface of the sliding pressure block 17 and the bottom surface of the conical pressure block 8, can prevent the compression spring 19 from rusting due to contact with the electroplating wastewater, and can also prevent the sediment in the electroplating wastewater from entering the space between the top surface of the sliding pressure block 17 and the bottom surface of the conical pressure block 8, two hoses 20 are connected to the sliding pressure block 17, the two ends of the hose 20 are respectively connected to the circular hole 1701 and the lower end of the drainage channel 9, a control switch 21 is installed on the bottom surface of the conical pressure block 8, and the control switch 21 is also located on the inner side of the elastic membrane 18.

[0031] like Figure 8 and Fig. 9As shown, the shaking mechanism includes a support frame 22, a rotating rod 23, blades 24, a fixed pipe 25 and a stabilizing assembly. The support frame 22 is connected to the upper inner side of the sedimentation tank 2, and the support frame 22 is located below the filter cloth I6. The rotating rod 23 is rotatably connected to the middle of the support frame 22, and a slide groove 2301 is opened at the upper end of the rotating rod 23. The slide groove 2301 is an inclined ring as a whole, and the height of the slide groove 2301 gradually decreases from left to right. A plurality of blades 24 are circumferentially spaced and connected to The outer side of the rotating rod 23, and the height of the blade 24 is aligned with the height of the right end of the water inlet pipe 3, so that when the electroplating wastewater enters the sedimentation tank 2 through the water inlet pipe 3, the blade 24 and the rotating rod 23 can be pushed to rotate, the fixed pipe 25 is connected to the middle of the filter cloth I6, and the upper end of the rotating rod 23 is inserted into the fixed pipe 25, and the lower right side of the inner wall of the fixed pipe 25 is also provided with a protrusion 2501, and the protrusion 2501 slides in the slide groove 2301, so that when the rotating rod 23 rotates, the The chute 2301 can squeeze the protrusion 2501 to move up and down, thereby driving the fixed tube 25 to move up and down, and the fixed tube 25 can pull the central part of the filter cloth I6 to move up and down, so that the filter cloth I6 shakes to shake off the sediment adhered to the bottom surface of the filter cloth I6. The stabilizing component is used to stabilize the shape of the filter cloth I6; the stabilizing component includes a mounting ring 26, a connecting rod 27 and a lifting block 28, the mounting ring 26 is connected to the upper side of the sedimentation tank 2, and the mounting ring 26 is located above the filter cloth I6, the connecting rod 27 is connected to the inner wall of the mounting ring 26, the lifting block 28 is connected to the middle of the top surface of the filter cloth I6, and the lifting block 28 is slidably connected to the connecting rod 27, so that when the central part of the filter cloth I6 shakes up and down, it can drive the lifting block 28 to slide up and down along the connecting rod 27. Since the lifting block 28 cannot rotate on the connecting rod 27, the central part of the filter cloth I6 and the fixed tube 25 can be prevented from rotating with the rotating rod 23.

[0032] like Fig.10 and Fig.11 As shown, it also includes a rotating ring 29, a filter cloth II 31, a filter cloth III 32, a fixed block 33, a wedge block 34 and a torsion spring 35. The rotating ring 29 is rotatably connected to the sliding pressure block 17. Two through holes 30 are opened on the rotating ring 29. The two through holes 30 correspond to the two circular holes 1701 one by one. The bottom surfaces of the two circular holes 1701 are connected with filter cloth II 31. The filter cloth III 32 is connected to the top surface of the drainage channel 9. The fixed block 33 is connected to the top surface of the rotating ring 29, and the fixed block 33 slides through the top surface of the sliding pressure block 17. The upper rear side of the fixed block 33 is an arc surface. The wedge block 34 is connected to the upper left side of the lifting rod 7, and the front side of the bottom of the wedge block 34 is an inclined surface. The inclined surface on the wedge block 34 contacts the arc surface on the fixed block 33. The torsion spring 35 is wound around the outer side of the upper part of the lifting rod 7, and the two ends of the torsion spring 35 are respectively connected to the upper right side of the fixed block 33 and the rear side of the top surface of the sliding pressure block 17.

[0033] like Fig.12As shown, it also includes a scraper 36, a support rod 37, a buffer spring 38, a feed ramp 39, a vibration motor 40, a rubber membrane 41 and a guide ring 42. The scraper 36 is connected to the lower end of the rotating rod 23, and the scraper 36 contacts the inner wall of the sedimentation tank 2. The front side of the lower part of the mounting frame 1 and the rear side of the upper part of the fixing frame 10 are symmetrically connected with support rods 37. The number of support rods 37 is four, and the top surfaces of the four support rods 37 are connected with buffer springs 38. A feed ramp 39 is connected between the top ends of the four buffer springs 38. The feed ramp 39 is inclined with the front lower and the rear higher, and the feed ramp 39 is located below the sedimentation tank 2. The vibration motor 40 is installed on the bottom surface of the feed ramp 39. The rear part of the feed ramp 39 is connected with a rubber membrane 41. The rubber membrane 41 is annular, and the inner wall of the rubber membrane 41 is connected with a guide ring 42. The lifting rod 7 is slidably connected to the guide ring 42.

[0034] First, electroplating wastewater is introduced into the sedimentation tank 2 from the water inlet pipe 3 by high pressure. The electroplating wastewater can rotate inside the sedimentation tank 2 to form a vortex, so that the sediment in the electroplating wastewater will fall down along the inner wall of the sedimentation tank 2, and the clear liquid will be filtered through the filter cloth Ⅰ6, and then discharged out through the outlet pipe 4. The filter cloth Ⅰ6 can filter out the fine sediment in the clear liquid. At the same time, the electroplating wastewater entering the sedimentation tank 2 will push the blade 24 to rotate, thereby driving the rotating rod 23 and the scraper 36 to rotate. The scraper 36 can scrape off the sediment adhered to the inner wall of the sedimentation tank 2, so that the sediment falls down to the top surface of the conical block 16, and the rotating rod 23 passes through the slide groove 2301 and the protrusion 250 1 can drive the fixed pipe 25 to reciprocate up and down, and the fixed pipe 25 can drive the middle position of the filter cloth Ⅰ6 to reciprocate up and down, so that the filter cloth Ⅰ6 can shake, so that the sediment filtered by the filter cloth Ⅰ6 can be shaken off to prevent the sediment from adhering to the filter cloth Ⅰ6; at the same time, the controller 5 can control the driving motor 11 to drive the turntable 12 to rotate, and the turntable 12 can drive the guide frame 13 to reciprocate up and down, and the guide frame 13 can drive the lifting rod 7 and the conical pressure block 8 to reciprocate up and down. When the lifting rod 7 and the conical pressure block 8 move downward, they can drive the sliding pressure block 17 to move downward, and the sliding pressure block 17 will move to the lower end of the sedimentation tank 2. At this time, the sliding pressure block 17 and the conical pressure block 8 are A closed cylindrical space can be formed between the block 16 and the sedimentation tank 2, and the sliding pressure block 17 continues to move downward to squeeze the sediment in the above cylindrical space. At this time, the remaining sediment in the sedimentation tank 2 will be located above the conical pressure block 8. After the sediment in the above cylindrical space is compressed, the clear liquid in the sediment will flow into the sedimentation tank 2 through the filter cloth II 31, the through hole 30, the circular hole 1701, the hose 20, the drainage channel 9 and the filter cloth III 32 in sequence, thereby reducing the water content of the sediment in the above cylindrical space. The filter cloth II 31 and the filter cloth III 32 both have a filtering effect, which can prevent the sediment from entering the drainage channel 9 and the hose 20 and causing blockage until the cylindrical space is filled with sediment. When the sediment in the columnar space can no longer be squeezed, the sliding block 17 stops moving downward, and the conical block 8 and the lifting rod 7 continue to move downward, the compression spring 19 is compressed, and the elastic membrane 18 and the hose 20 can deform adaptively, and the conical block 8 will drive the control switch 21 to move downward until it contacts the sliding block 17. The control switch 21 sends a signal, and the controller 5 controls the telescopic rod of the electric push rod 15 to extend for 5 seconds after receiving the signal. The telescopic rod of the electric push rod 15 drives the conical block 16 to move downward and no longer blocks the lower end of the sedimentation tank 2. At this time, the conical block 8 can replace the function of the conical block 16 to prevent the electroplating wastewater in the sedimentation tank 2 from leaking downward;At the same time, the lifting rod 7 will drive the wedge block 34 to move downward to squeeze the fixed block 33 to rotate, and the torsion spring 35 will be deformed. The fixed block 33 can drive the rotating ring 29 to rotate, so that the through hole 30 is no longer vertically aligned with the circular hole 1701. At this time, the clear liquid in the drainage channel 9 can be separated from the sediment in the cylindrical space. Then the conical pressure block 8 will continue to move downward, and the sliding pressure block 17 can be squeezed by the compression spring 19 to move downward synchronously until the bottom surface of the sliding pressure block 17 contacts the top surface of the retaining ring 201, so that the sediment squeezed by the sliding pressure block 17 can be removed. The material is pushed downward, so that the pressed sediment falls down to the top surface of the discharge inclined plate 39. At this time, the retaining ring 201 replaces the sediment to resist the bottom surface of the sliding pressure block 17, so that the torsion spring 35 remains in the deformed state. After 5 seconds, the controller 5 controls the telescopic rod of the electric push rod 15 to shorten and reset. The telescopic rod of the electric push rod 15 drives the conical blocking block 16 to move upward and reset, so that the conical blocking block 16 blocks the lower end of the sedimentation tank 2 again. At this time, the lifting rod 7 and the conical pressure block 8 just move upward and reset, and the compression spring 19 gradually returns to its original state. The elastic membrane 18 and the hose 20 are elastic due to their own elasticity. The performance is restored to its original state, and the conical pressing block 8 can drive the control switch 21 to move upward and disengage from the sliding pressing block 17, the lifting rod 7 can drive the wedge block 34 to move upward and separate from the fixed block 33, the torsion spring 35 can restore to its original state, drive the fixed block 33 to rotate in the opposite direction and reset, the fixed block 33 can drive the rotating ring 29 to rotate in the opposite direction and reset, so that the through hole 30 is vertically aligned with the circular hole 1701, until the conical pressing block 8 is away from the lower end of the sedimentation tank 2, and the sediment in the sedimentation tank 2 will pass over the conical pressing block 8 and fall down, and so on and so forth, the electroplating wastewater can be continuously separated into solid and liquid. Improve work efficiency, and can automatically squeeze the discharged sediment, reduce the water content of the sediment, improve the treatment effect, and reduce costs; at the same time, when the sediment falls to the top surface of the discharge inclined plate 39, the controller 5 can control the vibration motor 40 to drive the discharge inclined plate 39 to vibrate, so that the sediment on the top surface of the discharge inclined plate 39 can slide forward, which is convenient for manual unified collection, and the buffer spring 38 and the rubber membrane 41 can both play a buffering role to prevent the vibration of the discharge inclined plate 39 from being transmitted to the mounting frame 1 and the lifting rod 7, thereby ensuring the stable operation of the entire device. ;

[0035] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flocculation-precipitation-based electroplating wastewater recovery device, comprising a mounting frame (1), a sedimentation tank (2), a water inlet pipe (3) and a water outlet pipe (4), wherein the sedimentation tank (2) is connected to the mounting frame (1), and the water inlet pipe (3) and the water outlet pipe (4) are both connected to the sedimentation tank (2), wherein: The invention also comprises a retaining ring (201), a controller (5), a filter cloth I (6), a lifting rod (7), a conical pressing block (8), a lifting assembly, a blocking mechanism and a shaking mechanism. The retaining ring (201) is connected to the lower end of the sedimentation tank (2), the controller (5) is mounted on the mounting frame (1), the filter cloth I (6) is connected to the sedimentation tank (2), and the filter cloth I (6) is located below the water outlet pipe (4), the lifting rod (7) is slidably arranged at the lower end of the sedimentation tank (2), the conical pressing block (8) is connected to the upper end of the lifting rod (7), and a drainage channel (9) is opened in the conical pressing block (8) and the lifting rod (7), the lifting assembly is used to drive the lifting rod (7) to move up and down, the blocking mechanism is used to block the lower end of the sedimentation tank (2), and the shaking mechanism is used to drive the filter cloth I (6) to shake.

2. The electroplating wastewater recovery device based on flocculation and sedimentation according to claim 1 is characterized in that: The lifting assembly comprises a fixed frame (10), a driving motor (11), a turntable (12) and a guide frame (13); the fixed frame (10) is connected to the mounting frame (1); the driving motor (11) is connected to the fixed frame (10); the turntable (12) is rotatably connected to the fixed frame (10); the end of the rotating shaft of the turntable (12) is connected to the output shaft of the driving motor (11); the guide frame (13) is connected to the lower end of the lifting rod (7); and the guide frame (13) and the turntable (12) are slidably matched.

3. The electroplating wastewater recovery device based on flocculation sedimentation according to claim 1 is characterized in that: The blocking mechanism comprises a fixed ring (14), an electric push rod (15), a conical block (16) and a control component, wherein the fixed ring (14) is connected to the sedimentation tank (2), the electric push rod (15) is symmetrically connected to the fixed ring (14), the conical block (16) is connected to the telescopic rod of the electric push rod (15), the top surface of the conical block (16) contacts the bottom surface of the blocking ring (201), and the lifting rod (7) slides through the conical block (16), and the control component is used to control the electric push rod (15) to drive the conical block (16) to move.

4. The electroplating wastewater recovery device based on flocculation sedimentation according to claim 3 is characterized in that: The control component comprises a sliding pressure block (17), an elastic membrane (18), a compression spring (19), a hose (20) and a control switch (21). The sliding pressure block (17) is slidably connected to the lifting rod (7), and the sliding pressure block (17) is located below the conical pressure block (8). A circular hole (1701) is opened on the sliding pressure block (17). Two ends of the elastic membrane (18) are respectively connected to the top surface of the sliding pressure block (17) and the bottom surface of the conical pressure block (8). The compression spring (19) is wound around the outside of the lifting rod (7), and the compression spring (19) connects the sliding pressure block (17) and the conical pressure block (8). The compression spring (19) is located on the inside of the elastic membrane (18). The hose (20) is connected to the circular hole (1701) and the drainage channel (9). The control switch (21) is installed on the bottom surface of the conical pressure block (8).

5. The electroplating wastewater recovery device based on flocculation and sedimentation according to claim 2 is characterized in that: The shaking mechanism comprises a support frame (22), a rotating rod (23), blades (24), a fixed tube (25) and a stabilizing assembly. The support frame (22) is connected to the sedimentation tank (2), and the support frame (22) is located below the filter cloth I (6). The rotating rod (23) is rotatably connected to the support frame (22), and a slide groove (2301) is provided at the upper end of the rotating rod (23). The blades (24) are connected to the rotating rod (23) at intervals in the circumferential direction. The fixed tube (25) is connected to the bottom surface of the filter cloth I (6). A protrusion (2501) is further provided in the fixed tube (25), and the protrusion (2501) slides in the slide groove (2301). The stabilizing assembly is used to stabilize the shape of the filter cloth I (6).

6. The electroplating wastewater recovery device based on flocculation and sedimentation according to claim 5 is characterized in that: The assembly comprises a mounting ring (26), a connecting rod (27) and a lifting block (28); the mounting ring (26) is connected to the inside of the sedimentation tank (2), and the mounting ring (26) is located above the filter cloth I (6); the connecting rod (27) is connected to the inner wall of the mounting ring (26), the lifting block (28) is connected to the top surface of the filter cloth I (6), and the lifting block (28) is slidably connected to the connecting rod (27).

7. The electroplating wastewater recovery device based on flocculation and sedimentation according to claim 4 is characterized in that: The invention also comprises a rotating ring (29), a filter cloth II (31), a filter cloth III (32), a fixed block (33), a wedge block (34) and a torsion spring (35). The rotating ring (29) is rotatably connected to the sliding pressure block (17). A through hole (30) is formed on the rotating ring (29). The through hole (30) corresponds to the circular hole (1701). The filter cloth II (31) is connected to the bottom surface of the circular hole (1701). The filter cloth III (32) is connected to the top surface of the drainage channel (9). The fixed block (33) is connected to the top surface of the rotating ring (29). The fixed block (33) slides through the top surface of the sliding pressure block (17). The wedge block (34) is connected to the lifting rod (7). The wedge block (34) contacts and cooperates with the fixed block (33). The torsion spring (35) is wound around the outside of the lifting rod (7). The torsion spring (35) connects the fixed block (33) and the sliding pressure block (17).

8. The electroplating wastewater recovery device based on flocculation and sedimentation according to claim 5 is characterized in that: The invention also comprises a scraper frame (36), a support rod (37), a buffer spring (38), a material discharging inclined plate (39), a vibration motor (40), a rubber membrane (41) and a guide ring (42). The scraper frame (36) is connected to the lower end of the rotating rod (23), and the scraper frame (36) contacts the inner wall of the sedimentation tank (2). The support rod (37) is symmetrically connected to the mounting frame (1) and the fixing frame (10), respectively. The material discharging inclined plate (39) is connected to the top surface of the support rod (37) through the buffer spring (38), and the material discharging inclined plate (39) is located below the sedimentation tank (2). The vibration motor (40) is installed on the bottom surface of the material discharging inclined plate (39). The guide ring (42) is connected to the material discharging inclined plate (39) through the rubber membrane (41), and the lifting rod (7) is slidably connected to the guide ring (42).

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