An electroplating wastewater treatment device based on multi-stage filtration

Abstract

The present invention relates to the technical field of electroplating wastewater treatment, and particularly relates to an electroplating wastewater treatment device based on multi-stage filtration. The present invention provides an electroplating wastewater treatment device based on multi-stage filtration that can quickly and effectively separate and discharge wastewater and sediment. An electroplating wastewater treatment device based on multi-stage filtration includes a bracket, a connecting pipe, a ball valve, etc. A connecting pipe is connected to the upper part of the bracket, and a ball valve is rotatably arranged on the upper part of the connecting pipe. By starting the servo motor, the rotating chamber rotates through the first gear assembly, so that the electroplating wastewater enters the lifting chamber through the filtration chamber under the action of centrifugal force and is discharged, and the sediment is intercepted in the filtration chamber. Then, the air cylinder is started to push the lifting chamber to move upward, and then the rotating chamber rotates to discharge the sediment into the sediment collection pool, achieving the effect of quickly and effectively separating and discharging wastewater and sediment.

Description

Technical Field

[0001] The invention relates to the technical field of electroplating wastewater treatment, and in particular to electroplating wastewater treatment equipment based on multi-stage filtration. Background Art

[0002] Electroplating wastewater is a type of industrial wastewater produced in the electroplating industry that contains harmful substances such as heavy metals, acids and alkalis, organic compounds and cyanide. Due to its complex composition and the presence of a large number of toxic substances, direct discharge without treatment will cause serious pollution to water bodies, soil and ecosystems. Therefore, electroplating wastewater needs to be treated by electroplating wastewater treatment equipment before discharge.

[0003] For example, the electroplating wastewater recycling equipment disclosed in the publication (announcement) number CN114538584A comprises a treatment tank, the inner wall of which is movably mounted with a support frame, and the inner cavity of the treatment tank is elliptical, the surface of the support frame is movably mounted with a purification block, and the top of the purification block is provided with a rubber head. The electroplating wastewater recycling equipment is that when the purification block moves downward, the driving coil will generate a magnetic force that repels the driving magnetic block and the purification block is quickly lifted up, and the lifting will cause the waste in the purification block to sink due to overweight, thereby increasing the sedimentation rate of the waste, and the airflow in the inner cavity of the treatment tank can be slowly discharged through the discharge rod, so that the waste liquid in the purification block is reduced when it is restored. The phenomenon of the sedimentation waste moving upward due to weightlessness is reduced, and the cycle is repeated, and the purpose of accelerating the sedimentation rate of the waste is finally achieved. However, since the purification block is moved by magnetic force to separate the sediment from the wastewater, it is difficult to control the sedimentation rate and ensure the effective separation of the waste, the operation is relatively complicated, and the energy consumption is high.

[0004] Therefore, a multi-stage filtration electroplating wastewater treatment equipment has been developed that can quickly and effectively separate and discharge wastewater and sediment, has simple operation, and has low energy consumption. Summary of the invention

[0005] In order to overcome the shortcomings of existing electroplating wastewater treatment equipment, such as difficulty in controlling the sedimentation rate and ensuring effective separation of waste, complex operation and high energy consumption, the present invention provides an electroplating wastewater treatment equipment based on multi-stage filtration that can quickly and effectively separate and discharge wastewater and sediment, has simple operation and low energy consumption.

[0006] A multi-stage filtration-based electroplating wastewater treatment device comprises a bracket, a connecting pipe, a ball valve, a treatment barrel, a double-shaft motor, a mixing rack, a wastewater filling pipe, a chemical filling pipe, a separation mechanism and a discharge mechanism, wherein the upper portion of the bracket is connected with a connecting pipe, a ball valve is rotatably provided on the upper portion of the connecting pipe, the upper side of the connecting pipe is connected with the treatment barrel, the upper middle portion of the treatment barrel is connected with a double-shaft motor, the lower output shaft of the double-shaft motor is connected with a mixing rack, the mixing rack is located inside the treatment barrel, the upper left portion of the treatment barrel is connected with a wastewater filling pipe, the upper right portion of the treatment barrel is connected with a chemical filling pipe, the connecting pipe is provided with a separation mechanism capable of quickly separating sewage from sediment, and the separation mechanism is provided with a discharge mechanism capable of facilitating the discharge of wastewater and sediment.

[0007] In one embodiment, the separation mechanism includes a servo motor, a first gear assembly, a rotating chamber and a filter chamber. The servo motor is connected to the left side of the lower part of the connecting pipe, and the lower part of the connecting pipe is rotatably connected to the rotating chamber. A first gear assembly is provided between the rotating chamber and the output shaft of the servo motor. The filter chamber is slidably connected to the rotating chamber. The servo motor is started to rotate the rotating chamber through the first gear assembly, so that the electroplating wastewater passes through the filter chamber under the action of centrifugation and the sediment is intercepted in the filter chamber.

[0008] In one embodiment, the first gear assembly includes a ring gear and a pinion, the pinion is connected to the output shaft of the servo motor, the outer side of the upper part of the rotating bin is connected to the ring gear, and the ring gear is meshed with the pinion.

[0009] In one of the embodiments, the discharge mechanism includes a lifting bin, a cylinder and a connecting frame. The lifting bin is rotatably connected to the filter bin, the lifting bin is slidably connected to the bracket, the cylinder is connected to the lower middle side of the connecting pipe, the connecting frame is connected to the telescopic end of the cylinder, the connecting frame is connected to the filter bin, and the cylinder is started to move the connecting frame upward, so that the filter bin moves upward, and then the lifting bin is pushed upward, and then the rotating bin rotates to discharge the sediment into the sediment collection pool. While the filter bin moves upward, the rotating bin scrapes off the sediment on the inner wall of the filter bin.

[0010] In one of the embodiments, a wastewater outlet pipe is provided on the right side of the lifting compartment.

[0011] In one of the embodiments, a filtering mechanism is also included, which includes a connecting elbow, a rotating cover, a second gear assembly, a rotating frame and a filter screen. The upper side of the wastewater filling pipe is detachably connected to the connecting elbow by multiple bolts, the lower left side of the connecting elbow is threadedly connected to the rotating cover, the upper part of the connecting elbow is rotatably connected to the rotating frame, the second gear assembly is connected between the rotating frame and the upper output shaft of the dual-axis motor, the inner side of the upper right part of the connecting elbow is connected to the filter screen, the rotating frame is rotatably connected to the filter screen, the connecting elbow is connected to the wastewater filling pipe by bolts, and then the electroplating wastewater is passed into the connecting elbow, and larger impurities in the electroplating wastewater are intercepted by the filter screen. When the dual-axis motor is started, the rotating frame is driven to rotate by the second gear assembly, so that the rotating frame scrapes off the impurities on the filter screen, and then the rotating cover is removed to clean the larger impurities intercepted in the connecting elbow.

[0012] In one embodiment, the second gear assembly includes a bevel gear, a bevel gear is connected to the right side of the rotating frame, a bevel gear is also connected to the upper output shaft of the dual-axis motor, and the bevel gears are meshed with each other.

[0013] In one of the embodiments, a cleaning mechanism is also included, which includes a slide rod, a push plate and a first spring. The slide rod is slidably connected to the middle of the rotating cover, and the push plate is connected to the right side of the slide rod. The push plate is located inside the connecting elbow, and the first spring is connected between the slide rod and the rotating cover. When a lot of impurities are accumulated on the rotating cover, the slide rod is pulled to the left, and the first spring is stretched, driving the push plate to move to the left, so that the impurities are clamped between the push plate and the rotating cover. Then, the rotating cover is removed, and the slide rod is released to make the first spring rebound, so that the push plate is reset, and the impurities fall from between the push plate and the rotating cover.

[0014] In one of the embodiments, a switch mechanism is also included, which includes a support arm, a lifting frame, a second spring and a one-way rotation damper. The support arm is connected to the upper right side of the lifting warehouse, and the lifting frame is slidably connected to the front of the support arm. A second spring is connected between the lifting frame and the support arm, and the lifting frame and the support arm cooperate to clamp the ball valve. A one-way rotation damper is connected to the connection between the connecting pipe and the ball valve. When the lifting warehouse moves upward, the support arm and the lifting frame are driven to move upward, so that the ball valve rotates and the connecting pipe is closed. At this time, the one-way rotation damper does not work, so that wastewater and chemicals can be added to the treatment barrel while discharging the sediment to treat the wastewater. When the lifting warehouse moves downward and resets, it drives the support arm to move downward, and resistance is applied by the one-way rotation damper, so that the ball valve temporarily remains in a closed state, and the second spring is squeezed and contracted. After the lifting warehouse is reset, the second spring rebounds to apply a force to the lifting frame, so that the lifting frame is reset, so that the ball valve rotates open, and the treated sewage is discharged from the connecting pipe.

[0015] In one of the embodiments, a mixing mechanism is also included, and the mixing mechanism includes a sliding frame and a third spring. A plurality of sliding frames are slidably connected to the lower portion of the mixing frame, and the sliding frames are all in contact with the processing barrel. The third spring is connected between the sliding frames and the mixing frame. When the mixing frame rotates, the sliding frame is also driven to rotate, and the sliding frame is always kept in contact with the processing barrel through the action of the third spring.

[0016] Beneficial effects: 1. The present invention starts the servo motor and rotates the rotating bin through the first gear assembly, so that the electroplating wastewater passes through the filter bin under the action of centrifugation and enters the lifting bin for discharge, and the sediment is intercepted in the filter bin. Then, the cylinder is started to push the lifting bin to move upward, and the rotating bin is rotated to discharge the sediment into the sediment collection pool, thereby achieving the effect of quickly and effectively separating and discharging the wastewater and the sediment.

[0017] 2. The present invention starts the dual-axis motor and drives the rotating frame to rotate through the meshing movement of the bevel gear in the second gear assembly, so that the rotating frame scrapes off the impurities on the filter screen, thereby achieving the effect of filtering larger impurities in the electroplating wastewater and accelerating the subsequent treatment efficiency of the electroplating wastewater.

[0018] 3. The present invention pulls the slide bar to move to the left, the first spring stretches, and drives the push plate to move to the left, so that the impurities are clamped between the push plate and the rotating cover. Then, the rotating cover is removed, and the slide bar is loosened to make the first spring rebound, so that the push plate is reset, and then the impurities fall from between the push plate and the rotating cover, thereby achieving the effect of facilitating the cleaning of the connecting elbow and reducing the residual impurities.

[0019] 4. The present invention applies resistance through a one-way rotating damper so that the ball valve temporarily remains in a closed state. The second spring is squeezed and contracts. After the lifting compartment is reset, the second spring rebounds to apply a force to the lifting frame to reset the lifting frame, so that the ball valve rotates and opens, thereby achieving the effect of automatically controlling the opening and closing of the ball valve, facilitating continuous treatment of wastewater and accelerating wastewater treatment efficiency.

[0020] 5. The present invention drives the sliding frame to rotate while the mixing frame rotates. The sliding frame is always kept in contact with the treatment barrel through the force of the third spring, thereby achieving the effect of enhancing the mixing effect of the wastewater and preventing the sediment from adhering to the inner wall of the treatment barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a cross-sectional view of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the separation mechanism of the present invention.

[0024] Figure 4 This is a first cross-sectional view of the separation mechanism of the present invention.

[0025] Figure 5 This is a second cross-sectional view of the separation mechanism of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the filtering mechanism of the present invention.

[0027] Figure 7 It is a cross-sectional view of the filtering mechanism of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the discharge mechanism of the present invention.

[0029] Fig. 9 It is a cross-sectional view of the discharge mechanism of the present invention.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention.

[0031] Fig.11 It is a schematic diagram of the three-dimensional structure of the switch mechanism of the present invention.

[0032] Fig.12 It is a schematic diagram of the three-dimensional structure of the mixing mechanism of the present invention.

[0033] Marked in the figure: 1- bracket, 2- connecting pipe, 3- ball valve, 4- processing barrel, 5- double-axis motor, 6- mixing rack, 7- wastewater filling pipe, 8- reagent filling pipe, 9- separation mechanism, 91- servo motor, 92- first gear assembly, 93- rotating chamber, 94- filtering chamber, 10- filtering mechanism, 101- connecting elbow, 102- rotating cover, 103- second gear assembly, 104- rotating rack, 105- filter screen, 11- discharge mechanism, 111- lifting chamber, 112- cylinder, 113- connecting rack, 12- cleaning mechanism, 121- sliding rod, 122- pushing plate, 123- first spring, 13- switch mechanism, 131- supporting arm, 132- lifting rack, 133- second spring, 134- one-way rotating damper, 14- mixing mechanism, 141- sliding rack, 42- third spring. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0035] An electroplating wastewater treatment device based on multi-stage filtration, such as Figure 1 and Figure 2As shown, it includes a bracket 1, a connecting pipe 2, a ball valve 3, a processing barrel 4, a double-axis motor 5, a mixing frame 6, a wastewater filling pipe 7, a drug filling pipe 8, a separation mechanism 9 and a discharge mechanism 11. The upper part of the bracket 1 is connected to the connecting pipe 2, the upper part of the connecting pipe 2 is rotatably provided with a ball valve 3, the upper side of the connecting pipe 2 is connected to the processing barrel 4, the upper middle part of the processing barrel 4 is connected to the double-axis motor 5, the lower output shaft of the double-axis motor 5 is connected to the mixing frame 6, the mixing frame 6 is located inside the processing barrel 4, the upper left part of the processing barrel 4 is connected to the wastewater filling pipe 7, the upper right part of the processing barrel 4 is connected to the drug filling pipe 8, the connecting pipe 2 is provided with a separation mechanism 9, and the separation mechanism 9 is provided with a discharge mechanism 11.

[0036] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the separation mechanism 9 includes a servo motor 91, a first gear assembly 92, a rotating chamber 93 and a filter chamber 94. The servo motor 91 is connected to the left side of the lower part of the connecting tube 2, and the rotating chamber 93 is rotatably connected to the lower part of the connecting tube 2. A first gear assembly 92 is provided between the rotating chamber 93 and the output shaft of the servo motor 91. The first gear assembly 92 includes a ring gear and a pinion. The pinion is connected to the output shaft of the servo motor 91, and a ring gear is connected to the outer side of the upper part of the rotating chamber 93. The ring gear is meshed with the pinion, and the filter chamber 94 is slidably connected to the rotating chamber 93.

[0037] like Figure 1 , Figure 8 and Fig. 9 As shown, the discharge mechanism 11 includes a lifting bin 111, a cylinder 112 and a connecting frame 113. The lifting bin 111 is rotatably connected to the filter bin 94. A wastewater outlet pipe is provided on the right side of the lifting bin 111 to facilitate wastewater discharge. The lifting bin 111 is slidably connected to the bracket 1. The cylinder 112 is connected to the lower middle side of the connecting pipe 2. The connecting frame 113 is connected to the telescopic end of the cylinder 112, and the connecting frame 113 is connected to the filter bin 94.

[0038] When using the present invention, first place the bracket 1 in the sediment collection tank, then add the electroplating wastewater from the wastewater filling pipe 7 to the treatment barrel 4, then add the chemical agent from the agent filling pipe 8 to the treatment barrel 4, then start the dual-axis motor 5 to drive the mixing frame 6 to rotate, so that the mixing frame 6 stirs the chemical agent and the electroplating wastewater to make them react, so that precipitation appears in the electroplating wastewater, and the electroplating wastewater is treated, then turn the ball valve 3 to open the connecting pipe 2, so that the treated electroplating wastewater enters the connecting pipe 2, and then the electroplating wastewater flows from the connecting pipe 2 into the rotating bin 93, and then start the servo motor 91, and the rotating bin 93 rotates through the meshing movement of the ring gear and the pinion in the first gear assembly 92, so that the electroplating wastewater is centrifuged. Enter the lifting chamber 111 through the filter chamber 94, connect the wastewater outlet pipe on the lifting chamber 111 to the wastewater discharge pipe, so that the wastewater is discharged, and the sediment is intercepted in the filter chamber 94, and then start the cylinder 112 to move the connecting frame 113 upward, so that the filter chamber 94 moves upward, and then pushes the lifting chamber 111 to move upward, and then the rotating chamber 93 rotates to make the rotating chamber 93 discharge the sediment into the sediment collection pool. While the filter chamber 94 moves upward, the rotating chamber 93 scrapes off the sediment on the inner wall of the filter chamber 94, thereby achieving the effect of quickly and effectively separating and discharging the wastewater and the sediment. After the sediment is discharged, start the cylinder 112 to move the connecting frame 113 downward and reset it, so as to facilitate subsequent wastewater treatment.

[0039] like Figure 1 , Figure 6 and Figure 7 As shown, it also includes a filtering mechanism 10, which includes a connecting elbow 101, a rotating cover 102, a second gear assembly 103, a rotating frame 104 and a filter screen 105. The upper side of the wastewater filling pipe 7 is detachably connected to the connecting elbow 101 by five bolts, the lower left side of the connecting elbow 101 is threadedly connected to the rotating cover 102, the upper part of the connecting elbow 101 is rotatably connected to the rotating frame 104, and the second gear assembly 103 is connected between the rotating frame 104 and the upper output shaft of the dual-axis motor 5. The second gear assembly 103 includes a bevel gear, and a bevel gear is connected to the right side of the rotating frame 104. The upper output shaft of the dual-axis motor 5 is also connected to a bevel gear, and the bevel gears are meshed with each other. The filter screen 105 is connected to the inner side of the upper right part of the connecting elbow 101, and the rotating frame 104 is rotatably connected to the filter screen 105.

[0040] The filtering mechanism 10 of the present device can filter out larger impurities in electroplating wastewater. Before adding the electroplating wastewater into the treatment barrel 4, the connecting elbow 101 is first connected to the wastewater filling pipe 7 by bolts, and then the electroplating wastewater is passed into the connecting elbow 101, and the larger impurities in the electroplating wastewater are intercepted by the filter 105. When the dual-axis motor 5 is started, the bevel gear meshing movement in the second gear assembly 103 drives the rotating frame 104 to rotate, so that the rotating frame 104 scrapes off the impurities on the filter 105, and then the rotating cover 102 is removed to clean the larger impurities intercepted in the connecting elbow 101, thereby filtering the larger impurities in the electroplating wastewater and accelerating the subsequent treatment efficiency of the electroplating wastewater.

[0041] like Figure 1 and Fig.10 As shown, a cleaning mechanism 12 is also included, and the cleaning mechanism 12 includes a slide rod 121, a push plate 122 and a first spring 123. The slide rod 121 is slidably connected to the middle of the rotating cover 102, and the push plate 122 is connected to the right side of the slide rod 121. The push plate 122 is located inside the connecting elbow 101, and the first spring 123 is connected between the slide rod 121 and the rotating cover 102.

[0042] The cleaning mechanism 12 of the present device can be used to conveniently clean the connecting elbow 101. After a large amount of impurities are accumulated on the rotating cover 102, the slide bar 121 is pulled to move to the left, the first spring 123 is stretched, and the push plate 122 is driven to move to the left, so that the impurities are clamped between the push plate 122 and the rotating cover 102. Then, the rotating cover 102 is removed, and the slide bar 121 is loosened to make the first spring 123 rebound, so that the push plate 122 is reset, and then the impurities fall from between the push plate 122 and the rotating cover 102, thereby facilitating the cleaning of the connecting elbow 101 and reducing the residual impurities.

[0043] like Figure 1 and Fig.11 As shown, a switch mechanism 13 is also included, and the switch mechanism 13 includes a support arm 131, a lifting frame 132, a second spring 133 and a one-way rotation damper 134. The upper right side of the lifting bin 111 is connected to the support arm 131, and the front part of the support arm 131 is slidably connected to the lifting frame 132. The second spring 133 is connected between the lifting frame 132 and the support arm 131. The lifting frame 132 cooperates with the support arm 131 to clamp the ball valve 3, and the one-way rotation damper 134 is connected to the connection between the connecting pipe 2 and the ball valve 3.

[0044] The switch mechanism 13 of the device can automatically control the opening and closing of the ball valve 3. When the lifting chamber 111 moves upward, the support arm 131 and the lifting frame 132 are driven to move upward, so that the ball valve 3 rotates and the connecting pipe 2 is closed. At this time, the one-way rotary damper 134 does not work, so that wastewater and medicine are added to the treatment barrel 4 while the sediment is discharged to treat the wastewater. When the lifting chamber 111 moves downward and resets, it drives the support arm 131 to move downward, and the one-way rotary damper 134 applies resistance, so that the ball valve 3 temporarily remains in a closed state, and the second spring 133 is squeezed and contracted. After the lifting chamber 111 is reset, the second spring 133 rebounds and applies a force to the lifting frame 132, so that the lifting frame 132 is reset, so that the ball valve 3 rotates open, and the treated sewage is discharged from the connecting pipe 2, thereby playing the role of automatically controlling the opening and closing of the ball valve 3, facilitating continuous treatment of wastewater, and accelerating the wastewater treatment efficiency.

[0045] like Figure 2 and Fig.12 As shown, a mixing mechanism 14 is also included, and the mixing mechanism 14 includes a sliding frame 141 and a third spring 42. Three sliding frames 141 are slidably connected to the lower part of the mixing frame 6. The sliding frames 141 are all in contact with the processing barrel 4, and the third spring 42 is connected between the sliding frames 141 and the mixing frame 6.

[0046] By using the mixing mechanism 14 of the present device, the mixing effect of the wastewater can be enhanced. When the mixing frame 6 rotates, the sliding frame 141 is driven to rotate. Through the force of the third spring 42, the sliding frame 141 always keeps in contact with the treatment barrel 4, thereby enhancing the mixing effect of the wastewater and preventing the sediment from adhering to the inner wall of the treatment barrel 4.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An electroplating wastewater treatment equipment based on multi-stage filtration, characterized by: The invention comprises a support (1), a connecting pipe (2), a ball valve (3), a treatment barrel (4), a double-shaft motor (5), a mixing frame (6), a wastewater filling pipe (7), a chemical filling pipe (8), a separation mechanism (9) and a discharge mechanism (11). The upper part of the support (1) is connected to the connecting pipe (2). The upper part of the connecting pipe (2) is rotatably provided with a ball valve (3). The upper side of the connecting pipe (2) is connected to the treatment barrel (4). The upper middle part of the treatment barrel (4) is connected to the double-shaft motor (5). The lower output shaft of the double-shaft motor (5) is connected to the mixing frame (6). The mixing frame (6) is located inside the treatment barrel (4). The upper left part of the treatment barrel (4) is connected to the wastewater filling pipe (7). The upper right part of the treatment barrel (4) is connected to the chemical filling pipe (8). The connecting pipe (2) is provided with a separation mechanism (9) capable of quickly separating sewage from sediment. The separation mechanism (9) is provided with a discharge mechanism (11) capable of conveniently discharging wastewater and sediment. The separation mechanism (9) comprises a servo motor (91), a first gear assembly (92), a rotating chamber (93) and a filtering chamber (94); the servo motor (91) is connected to the left side of the lower part of the connecting pipe (2); the rotating chamber (93) is rotatably connected to the lower part of the connecting pipe (2); a first gear assembly (92) is provided between the rotating chamber (93) and the output shaft of the servo motor (91); the filtering chamber (94) is slidably connected to the rotating chamber (93); the servo motor (91) is started to rotate the rotating chamber (93) through the first gear assembly (92), so that the electroplating wastewater passes through the filtering chamber (94) under the action of centrifugation, and the sediment is intercepted in the filtering chamber (94); The discharge mechanism (11) comprises a lifting bin (111), a cylinder (112) and a connecting frame (113); the lifting bin (111) is rotatably connected to the filter bin (94); the lifting bin (111) is slidably connected to the bracket (1); the cylinder (112) is connected to the lower middle side of the connecting pipe (2); the connecting frame (113) is connected to the telescopic end of the cylinder (112); the connecting frame (113) is connected to the filter bin (94); the cylinder (112) is started to move the connecting frame (113) upward, so that the filter bin (94) moves upward, thereby pushing the lifting bin (111) to move upward; then, the rotating bin (93) rotates, so that the rotating bin (93) discharges the sediment into the sediment collection pool; while the filter bin (94) moves upward, the rotating bin (93) scrapes the sediment on the inner wall of the filter bin (94); The device also comprises a switch mechanism (13), the switch mechanism (13) comprising a support arm (131), a lifting frame (132), a second spring (133) and a one-way rotation damper (134); the upper right side of the lifting chamber (111) is connected to the support arm (131); the front part of the support arm (131) is slidably connected to the lifting frame (132); the second spring (133) is connected between the lifting frame (132) and the support arm (131); the lifting frame (132) and the support arm (131) cooperate to clamp the ball valve (3); the one-way rotation damper (134) is connected to the connection between the connecting pipe (2) and the ball valve (3); when the lifting chamber (111) moves upward, the support arm (131) and the lifting frame (132) are driven. The lifting chamber (111) moves upward, causing the ball valve (3) to rotate and close the connecting pipe (2). At this time, the one-way rotary damper (134) does not work, so that wastewater and chemicals can be added to the treatment barrel (4) while the sediment is discharged to treat the wastewater. When the lifting chamber (111) moves downward to reset, it drives the support arm (131) to move downward, and the one-way rotary damper (134) applies resistance, so that the ball valve (3) temporarily remains in a closed state. The second spring (133) is squeezed and contracted. After the lifting chamber (111) is reset, the second spring (133) rebounds to apply a force to the lifting frame (132), so that the lifting frame (132) is reset, so that the ball valve (3) rotates open, and the treated sewage is discharged from the connecting pipe (2).

2. The electroplating wastewater treatment equipment based on multi-stage filtration according to claim 1 is characterized in that: The first gear assembly (92) comprises a gear ring and a pinion; the pinion is connected to the output shaft of the servo motor (91); the outer side of the upper portion of the rotating bin (93) is connected to the gear ring; the gear ring is meshed with the pinion.

3. The electroplating wastewater treatment equipment based on multi-stage filtration according to claim 2 is characterized in that: A waste water outlet pipe is provided on the right side of the lifting bin (111).

4. The electroplating wastewater treatment equipment based on multi-stage filtration according to claim 3 is characterized in that: The filter mechanism (10) also includes a connecting elbow (101), a rotating cover (102), a second gear assembly (103), a rotating frame (104) and a filter screen (105). The upper side of the wastewater filling pipe (7) is detachably connected to the connecting elbow (101) via a plurality of bolts. The left side of the lower part of the connecting elbow (101) is threadedly connected to the rotating cover (102). The upper part of the connecting elbow (101) is rotatably connected to the rotating frame (104). The second gear assembly (103) is connected between the rotating frame (104) and the upper output shaft of the dual-axis motor (5). The upper right part of the connecting elbow (101) is connected to the rotating cover (102). A filter screen (105) is connected to the inner side, and the rotating frame (104) is rotatably connected to the filter screen (105). The connecting elbow (101) is connected to the wastewater filling pipe (7) by bolts. Then, the electroplating wastewater is passed into the connecting elbow (101), and larger impurities in the electroplating wastewater are intercepted by the filter screen (105). When the dual-axis motor (5) is started, the rotating frame (104) is driven to rotate by the second gear assembly (103), so that the rotating frame (104) scrapes off the impurities on the filter screen (105), and then the rotating cover (102) is removed to clean the larger impurities intercepted in the connecting elbow (101).

5. The electroplating wastewater treatment equipment based on multi-stage filtration according to claim 4 is characterized in that: The second gear assembly (103) comprises a bevel gear. The right side of the rotating frame (104) is connected to the bevel gear. The upper output shaft of the dual-axis motor (5) is also connected to the bevel gear. The bevel gears are meshed with each other.

6. The electroplating wastewater treatment equipment based on multi-stage filtration according to claim 5 is characterized in that: The cleaning mechanism (12) also includes a sliding rod (121), a push plate (122) and a first spring (123). The sliding rod (121) is slidably connected to the middle of the rotating cover (102). The push plate (122) is connected to the right side of the sliding rod (121). The push plate (122) is located inside the connecting elbow (101). The first spring (123) is connected between the sliding rod (121) and the rotating cover (102). 2) When a large amount of impurities are accumulated at the position where the push rod (121) is pulled to move to the left, the first spring (123) is stretched, and the push plate (122) is driven to move to the left, so that the impurities are clamped between the push plate (122) and the rotating cover (102). Then, the rotating cover (102) is removed, and the push rod (121) is released to make the first spring (123) rebound, so that the push plate (122) is reset, and the impurities fall from between the push plate (122) and the rotating cover (102).

7. The electroplating wastewater treatment equipment based on multi-stage filtration according to claim 6 is characterized in that: The mixing device also comprises a mixing mechanism (14), the mixing mechanism (14) comprising a sliding frame (141) and a third spring (42); a plurality of sliding frames (141) are slidably connected to the lower portion of the mixing frame (6); the sliding frames (141) are all in contact with the processing barrel (4); the third spring (42) is connected between the sliding frames (141) and the mixing frame (6); when the mixing frame (6) rotates, the sliding frames (141) are driven to rotate; and through the action force of the third spring (42), the sliding frames (141) always remain in contact with the processing barrel (4).

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