Wastewater treatment device and method for corrosion foil production

Abstract

The present invention discloses a wastewater treatment device and method for the production of corrosion foil, and relates to the technical field of corrosion foil wastewater treatment. The present invention includes a wastewater treatment tank for storing and collecting corrosion foil wastewater, and also includes: a filter unit, and a wastewater inlet pipe for collecting wastewater is provided between the filter unit and the wastewater treatment tank, and a filter assembly and a dredging assembly are provided in the filter unit; a sedimentation unit for collecting wastewater filtered by the filter unit, including a dosing assembly and a filter press assembly. The advantage is that the present invention can perform a relatively thorough purification treatment on the wastewater by adopting a multi-stage treatment method such as filter disc filtration, neutralization precipitation, flocculation precipitation and sediment extrusion. During the treatment, the filter holes can also be intermittently dredged to effectively avoid clogging of the filter holes. After precipitation, the wastewater in the sediment can be completely pressed out by reciprocating extrusion, so that the sediment and the wastewater are completely separated, and the wastewater purification effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment for corrosion foil production, and in particular to a wastewater treatment device and method for corrosion foil production. Background Art

[0002] Corrosion foil wastewater refers to the wastewater generated during the production of corrosion foil for aluminum electrolytic capacitors. It mainly comes from corrosion, chemical formation and other processes. Corrosion foil wastewater usually has the characteristics of complex composition and high pollution. Therefore, it is necessary to use wastewater treatment equipment to purify it to reduce the pollution level of the wastewater.

[0003] Existing wastewater treatment devices use various methods to treat foil corrosion wastewater. For example, a wastewater treatment device based on foil corrosion production, published as CN214680287U, includes a pipe, a rotating shaft rotatably connected to the interior of the pipe, a filter screen fixedly sleeved on the exterior of the rotating shaft, a first gear fixedly sleeved on one end of the rotating shaft extending outside the pipe, a fixing plate fixedly connected to the outer wall of the pipe above the first gear, and a push rod motor fixedly connected to the bottom of the fixing plate;

[0004] When treating foil corrosion, existing wastewater treatment devices usually use a filter to filter out large impurities in the wastewater. However, after long-term use, the filter holes on the filter are prone to clogging, affecting its filtering effect. For example, the above-mentioned prior art device uses a method of turning the filter over and using bilateral filtration to improve the filtering effect. This filtering method cannot unclog the filter. When the mesh holes on the filter are clogged, it cannot filter. After long-term use, the filtering effect will gradually deteriorate. At the same time, this device cannot achieve neutralization and flocculation precipitation of wastewater, and aluminum ions and oxides in the foil corrosion wastewater cannot be removed, resulting in poor treatment effect.

[0005] Therefore, it is urgent to design a wastewater treatment device and method for corrosion foil production to solve the above problems. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides a wastewater treatment device and method for corrosion foil production, which solves the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A wastewater treatment device for the production of etched foil, comprising a wastewater treatment tank for storing and collecting etched foil wastewater, and further comprising:

[0008] The filter unit is arranged in the wastewater treatment tank, and a wastewater inlet pipe for collecting wastewater is arranged between the filter unit and the wastewater treatment tank. The filter unit is provided with a filter assembly and a dredging assembly. The filter assembly is provided with a filter disc, and the filter disc is provided with a plurality of filter holes for filtering large-volume impurities in the wastewater. The dredging assembly is provided with a dredging rod for dredging the filter holes;

[0009] The sedimentation unit is used to collect the wastewater filtered by the filtration unit, and includes a dosing component and a filter press component. The dosing component is used to automatically inject an appropriate amount of neutralizer and flocculant into the wastewater according to the content of the wastewater to achieve neutralization precipitation and flocculation precipitation of the wastewater. A water pressure plate is provided in the filter press component, and the wastewater in the sediment is squeezed out by squeezing the water pressure plate.

[0010] Preferably, a servo motor is provided in the wastewater treatment tank, and a driving roller is provided on the driving end of the servo motor. The filtration unit and the sedimentation unit are opened and closed by the cooperation of the servo motor and the driving roller, thereby realizing automatic filtration and sedimentation treatment of wastewater.

[0011] Preferably, the filter assembly includes a filter box arranged in the wastewater treatment tank, and the wastewater inlet pipe is located between the filter box and the wastewater treatment tank, and the filter disc is fixedly installed in the filter box, the drive roller is rotatably connected to the filter box, and a stirring blade for stirring the wastewater is fixedly installed on the drive roller, and the stirring blade is located above the filter disc in the filter box;

[0012] A square impurity suction pipe for sucking out impurities is fixedly connected between the filter box and the wastewater treatment tank, and the square impurity suction pipe is located on the upper part of the filter disc.

[0013] Preferably, the dredging assembly includes a reciprocating screw fixedly mounted on a driving roller, a ball nut plate is mounted on the reciprocating screw, and a synchronization frame is fixedly mounted on the ball nut plate, a lifting pressure plate is fixedly mounted on the synchronization frame through two extrusion springs, and the two extrusion springs are rotatably connected to the filter box, and multiple dredging rods are fixedly mounted on the lower part of the lifting pressure plate.

[0014] Preferably, the dosing component includes two medicine storage boxes fixedly installed in the wastewater treatment tank, and the two medicine storage boxes are used to store neutralizers and flocculants respectively. The two medicine storage boxes are fixedly connected to the wastewater treatment tank with a medicine replenishment pipe for replenishing the medicine, and the two medicine storage boxes are fixedly connected to the sedimentation tank with a medicine supply pipe for injecting the medicine, and both medicine supply pipes are provided with a control metering valve for controlling the injection amount.

[0015] Preferably, the filter press assembly includes a sedimentation box fixedly installed in the wastewater treatment tank, and a square water pipe for guiding water is fixedly connected between the sedimentation box and the filter box. A carrying water storage box for carrying wastewater is slidably installed in the sedimentation box, and a control mechanism is installed between the carrying water storage box and the two medicine storage boxes, and a water squeezing mechanism is installed in the carrying water storage box.

[0016] Preferably, the driving roller is rotationally connected to the wastewater treatment tank, and a plurality of mixing wheels for stirring the wastewater are fixedly mounted on the driving roller, and the plurality of mixing wheels are all located on the upper part of the water storage box in the sedimentation tank.

[0017] Preferably, the control mechanism includes a scale sensing rod fixedly installed on the side of the sedimentation tank, a trigger mark rod is fixedly installed on the supporting water storage box, and the trigger mark rod cooperates with the scale sensing rod, and the scale sensing rod cooperates with the corresponding control metering valve, which is used to inject a corresponding amount of medicine into the sedimentation tank according to the trigger scale line on the scale sensing rod.

[0018] Preferably, the water squeezing mechanism includes a linkage rod rotatably mounted in the sedimentation box, a one-way bearing is provided on the driving roller, and the one-way bearing cooperates with the reverse rotation of the driving roller, a worm is fixedly mounted on the one-way bearing, and a worm wheel cooperating with the worm is fixedly mounted on the linkage rod, a water pressure plate is slidably mounted on the driving roller, and a lifting gear rod is fixedly mounted on the lower part of the water pressure plate, an incomplete gear is fixedly mounted on the linkage rod, and the incomplete gear is meshed with the lifting gear rod, and a reset elastic frame for reset is fixedly mounted between the lifting gear rod and the sedimentation box;

[0019] A sedimentation storage tank for storing sediment is provided in the carrying water storage box, and the lower part of the sedimentation storage tank cooperates with the water pressure plate. Two supporting spring rods are fixedly installed between the carrying water storage box and the sedimentation tank. A plurality of filter grooves for squeezing out sewage are provided on the water pressure plate. A drain pipe for discharging sewage is fixedly installed on the water pressure plate. A sewage pipe for discharging sediment is fixedly connected to the sedimentation storage tank, and both the drain pipe and the sewage pipe are elastic pipes.

[0020] A method for treating wastewater used in the production of corroded foil, used in the above-mentioned wastewater treatment device for the production of corroded foil, comprising the following steps:

[0021] S1. Injecting wastewater generated during the production of corrosion foil into the filter unit through the wastewater inlet pipe, and filtering it through the filter holes in the filter assembly to remove large-volume impurities in the wastewater;

[0022] S2. While filtering, the dredging rod is controlled to move back and forth by the dredging component to intermittently dredge the filter holes to avoid clogging of the filter holes;

[0023] S3. The filtered wastewater is injected into the sedimentation unit, and an appropriate amount of neutralizer and flocculant is injected into the wastewater through the dosing component according to the wastewater content to perform neutralization and flocculation precipitation of the wastewater;

[0024] S4. After sedimentation, the sediment is reciprocally squeezed through the filter press assembly to remove the wastewater in the sediment, and the wastewater and sediment are discharged separately after the filter press is completed.

[0025] The present invention provides a wastewater treatment device and method for corrosion foil production, which has the following beneficial effects:

[0026] 1. When treating corrosion foil wastewater, this wastewater treatment device adopts a filtering method in which multiple filter holes on the filter disk cooperate with each other, which can effectively and thoroughly filter out large-volume impurities in the wastewater, resulting in better filtering effect. Primary treatment of wastewater can be achieved through filtration.

[0027] 2. When treating corrosion foil wastewater, this wastewater treatment device can realize the reciprocating lifting and lowering of the lifting pressure plate and multiple dredging rods at its lower part through the cooperation of the reciprocating screw and the ball nut plate. During the filtration process, the filter holes can be intermittently dredged by multiple dredging rods, which can effectively avoid the filter holes from being blocked and achieve better filtration effect.

[0028] 3. When treating the wastewater produced by corrosion foil, this wastewater treatment device can automatically inject an appropriate amount of neutralizer and flocculant into the wastewater according to the content of the wastewater after the wastewater filtration is completed, so as to effectively neutralize the acid and alkali and flocculate the wastewater, thereby achieving the neutralization of the wastewater and precipitating the aluminum ions and oxides in the wastewater, thereby achieving a better purification effect and realizing the secondary treatment of the wastewater.

[0029] 4. When treating the wastewater produced by corrosion foil, this wastewater treatment device can completely remove the wastewater attached to the sediment after sedimentation by reciprocating squeezing of the water pressure plate in conjunction with the water supply of the filter tank after sedimentation, thereby achieving complete separation of the wastewater and the sediment and realizing tertiary treatment of the wastewater.

[0030] In summary, the present invention can purify wastewater more thoroughly by adopting multi-stage treatment methods such as filter disc filtration, neutralization sedimentation, flocculation sedimentation and sediment extrusion. During the treatment, the filter holes can also be intermittently unblocked to effectively avoid clogging of the filter holes. After sedimentation, the wastewater in the sediment can be completely pressed out by reciprocating extrusion, thereby achieving complete separation of the sediment and the wastewater, and the wastewater purification effect is better.

[0031] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0033] Figure 1 This is a schematic diagram of the structure of a wastewater treatment method for corrosion foil production proposed by the present invention;

[0034] Figure 2 for Figure 1 Schematic diagram of the internal structure of the wastewater treatment tank;

[0035] Figure 3 for Figure 2 Front view of

[0036] Figure 4 for Figure 2 Schematic diagram of the structure after removing the wastewater treatment tank;

[0037] Figure 5 for Figure 4 Schematic diagram of the structure of the filter unit;

[0038] Figure 6 for Figure 5 Schematic diagram of the internal structure of the filter box;

[0039] Figure 7 for Figure 6 Front view of

[0040] Figure 8 for Figure 6 Schematic diagram of the structure after removing the filter box;

[0041] Figure 9 for Figure 8 Schematic diagram of the structural decomposition;

[0042] Figure 10 for Figure 4 Schematic diagram of the structure of the precipitation unit;

[0043] Figure 11 for Figure 10 Schematic diagram of the internal structure of the middle sedimentation tank;

[0044] Figure 12 for Figure 11 A magnified view of the structure of part A in the middle;

[0045] Figure 13 for Figure 11A magnified view of the structure of the servo motor and the water storage box;

[0046] Figure 14 for Figure 13 Schematic diagram of the internal structure of the middle load water storage box;

[0047] Figure 15 for Figure 14 Schematic diagram of the structure after removing the supporting water storage box.

[0048] In the figure: 1 wastewater treatment tank, 2 wastewater inlet pipe, 3 medicine replenishment pipe, 4 drainage pipe, 5 sewage pipe, 6 filter box, 7 sedimentation box, 8 medicine storage box, 9 impurity suction square pipe, 10 servo motor, 11 drive roller, 12 water discharge square pipe, 13 synchronous frame, 14 reciprocating screw, 15 extrusion spring, 16 lifting pressure plate, 17 filter plate, 18 stirring blade, 19 dredging rod, 20 filter hole, 21 ball nut plate, 22 scale sensing rod, 23 carrying water storage box, 24 support spring rod, 25 medicine feeding pipe, 26 mixing and stirring wheel, 27 sedimentation storage tank, 28 trigger mark, 29 water pressure plate, 30 linkage rod, 31 one-way bearing, 32 water filter tank, 33 worm, 34 worm wheel, 35 incomplete gear, 36 lifting gear rod, 37 reset elastic frame. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0050] Example 1: Reference Figure 1-Figure 4 A wastewater treatment device for corrosion foil production includes a wastewater treatment tank 1 for storing and collecting corrosion foil wastewater, and the wastewater is filtered and neutralized, and subjected to flocculation and sedimentation purification treatments.

[0051] The wastewater treatment plant also includes:

[0052] The filtering unit is arranged in the wastewater treatment tank 1, and a wastewater inlet pipe 2 for collecting wastewater is provided between the filtering unit and the wastewater treatment tank 1. The wastewater is injected into the wastewater treatment tank 1 through the wastewater inlet pipe 2, and the wastewater is filtered by the filtering unit to remove large-volume impurities in the wastewater, thereby realizing primary treatment of the wastewater.

[0053] The sedimentation unit is used to collect the wastewater filtered by the filtration unit. After filtering, the wastewater is injected into the sedimentation unit. According to the content of the wastewater, an appropriate amount of neutralizer and flocculant can be injected into the wastewater to perform neutralization and flocculation precipitation on the wastewater to achieve secondary treatment of the wastewater.

[0054] After the wastewater settles, the sediment is pressurized to completely remove the wastewater in the wastewater sediment, thereby achieving tertiary treatment of the wastewater.

[0055] A servo motor 10 is provided in the wastewater treatment tank 1, and a driving roller 11 is provided on the driving end of the servo motor 10. The servo motor 10 and the driving roller 11 cooperate to realize the opening and closing operation of the filtration unit and the sedimentation unit, thereby realizing the automatic filtration and sedimentation treatment of the wastewater;

[0056] The servo motor 10 can control the speed and direction of rotation of the driving roller 11 to adapt to the filtration and sedimentation treatment process of the wastewater.

[0057] Example 2: Reference Figure 2-Figure 9 The technical solution of this embodiment is different from that of the first embodiment in that: a filter assembly and a dredging assembly are provided in the filter unit, a filter disc 17 is provided in the filter assembly, and a plurality of filter holes 20 are provided on the filter disc 17 for filtering large-volume impurities in the wastewater;

[0058] The filter assembly includes a filter box 6 disposed in the wastewater treatment tank 1, and the wastewater inlet pipe 2 is located between the filter box 6 and the wastewater treatment tank 1, and the filter disc 17 is fixedly installed in the filter box 6, and the drive roller 11 is rotatably connected to the filter box 6;

[0059] The foil corrosion wastewater to be treated is injected into the filter box 6 through the wastewater inlet pipe 2 and comes into contact with the filter disc 17 in the filter box 6. At this time, the filter holes 20 on the filter disc 17 will filter the wastewater, so that impurities with larger volume in the wastewater cannot pass through the filter holes 20 and accumulate in the upper part of the filter disc 17, while impurities with smaller volume will continue to fall through the filter holes 20 together with the wastewater.

[0060] A stirring blade 18 for stirring the wastewater is fixedly mounted on the driving roller 11, and the stirring blade 18 is located on the upper part of the filter disc 17 in the filter box 6. The servo motor 10 is started to drive the driving roller 11 to rotate forward. When the driving roller 11 rotates forward, the stirring blade 18 is driven to rotate. When the stirring blade 18 rotates, the wastewater in the filter box 6 is stirred, thereby accelerating the flow rate of the wastewater and dispersing the wastewater in the filter box 6, making it easier for the wastewater to be filtered through different filter holes 20 instead of being filtered in a single area, thereby improving the filtration efficiency and reducing blockage.

[0061] A square suction pipe 9 for absorbing impurities is fixedly connected between the filter box 6 and the wastewater treatment tank 1, and the square suction pipe 9 is located on the upper part of the filter disc 17. The square suction pipe 9 cooperates with an external adsorption pump. After the wastewater is filtered, large-volume impurities will accumulate on the upper part of the filter disc 17. At this time, the external adsorption pump can be started, and the impurities accumulated on the upper part of the filter disc 17 can be absorbed by the adsorption pump and the square suction pipe 9, thereby completing the adsorption treatment of the impurities and completing the primary treatment of the wastewater.

[0062] In a further embodiment, a dredging rod 19 for dredging the filter hole 20 is provided in the dredging assembly, and the dredging assembly includes a reciprocating screw 14 fixedly mounted on the driving roller 11, a ball nut plate 21 is mounted on the reciprocating screw 14, and a synchronous frame 13 is fixedly mounted on the ball nut plate 21, and a lifting pressure plate 16 is fixedly mounted on the synchronous frame 13 through two extrusion springs 15, and the two extrusion springs 15 are rotatably connected to the filter box 6, and a plurality of dredging rods 19 are fixedly mounted on the lower part of the lifting pressure plate 16;

[0063] When the driving roller 11 rotates forward, it drives the reciprocating screw 14 on it to rotate. The rotation of the reciprocating screw 14 drives the ball nut plate 21 on it to move back and forth on the reciprocating screw 14, thereby driving the synchronous frame 13 to move back and forth. When the synchronous frame 13 moves back and forth, it drives the lifting pressure plate 16 to move back and forth through the two extrusion springs 15.

[0064] When the lifting and lowering pressure plate 16 moves downward, it can squeeze the wastewater in the filter box 6 below it, speed up the speed of wastewater passing through the filter holes 20, and improve the efficiency of wastewater filtration. At the same time, it can drive the dredging rod 19 to move downward, and insert the dredging rod 19 into the filter holes 20 at the corresponding positions on the filter plate 17, so as to penetrate and dredge the filter holes 20 and avoid clogging of the filter holes 20.

[0065] By reciprocating the lifting and lowering of the lifting pressure plate 16 to achieve the reciprocating lifting and lowering of the dredging rod 19, the filter holes 20 can be intermittently dredged during the wastewater filtration process, so that the filter holes 20 will not be blocked, which can effectively improve the wastewater filtration effect and increase the service life of the filter plate 17.

[0066] The cooperation between the reciprocating screw 14 and the ball nut plate 21 is prior art and will not be described in detail here.

[0067] Its specific working principle is as follows: the reciprocating screw 14 is a form of a three-dimensional cam pair, which is manifested as two spiral grooves with the same pitch and opposite rotation directions. The two ends of the screw are connected by a transition curve. The balls in the ball nut plate 21 are placed inside the spiral groove. Through the rotation of the screw, the inner groove side of the spiral groove pushes the balls inside to perform axial reciprocating motion, thereby driving the ball nut plate 21 to move back and forth. That is, when the reciprocating screw 14 rotates unidirectionally, it can drive the ball nut plate 21 to make it reciprocating linear movement on the reciprocating screw 14.

[0068] Example 3: Reference Figure 1-Figure 4 and 10- Figure 15 The technical solution of this embodiment is different from that of the second embodiment in that the sedimentation unit includes a dosing component and a filter press component. The dosing component is used to automatically inject an appropriate amount of neutralizer and flocculant into the wastewater according to the content of the wastewater, thereby achieving neutralization and flocculation sedimentation of the wastewater.

[0069] The filter press assembly includes a sedimentation box 7 fixedly installed in the wastewater treatment tank 1, and a drainage square pipe 12 for water conduction is fixedly connected between the sedimentation box 7 and the filter box 6. The wastewater after filtration in the filter box 6 will be introduced into the sedimentation box 7 through the drainage square pipe 12 to complete the conduction of the wastewater.

[0070] A carrying water storage box 23 for carrying wastewater is slidably installed in the sedimentation tank 7. Two supporting spring rods 24 are fixedly installed between the carrying water storage box 23 and the sedimentation tank 7. After the wastewater enters the sedimentation tank 7, it will accumulate on the carrying water storage box 23. As the wastewater content gradually increases, the wastewater will gradually press the carrying water storage box 23 to move it downward in the sedimentation tank 7, and at the same time squeeze the supporting spring rods 24 at the bottom to compress it.

[0071] The dosing assembly includes two drug storage boxes 8 fixedly installed in the wastewater treatment tank 1, and the two drug storage boxes 8 are used to store a neutralizer and a flocculant, respectively. A drug replenishment pipe 3 for replenishing drugs is fixedly connected between the two drug storage boxes 8 and the wastewater treatment tank 1. A drug supply pipe 25 for injecting drugs is fixedly connected between the two drug storage boxes 8 and the sedimentation tank 7, and both drug supply pipes 25 are provided with a control metering valve for controlling the injection amount.

[0072] A control mechanism is installed between the water-carrying box 23 and the two medicine storage boxes 8. The control mechanism includes a scale sensing rod 22 fixedly mounted on the side of the sedimentation box 7. A trigger mark rod 28 is fixedly mounted on the water-carrying box 23. The trigger mark rod 28 cooperates with the scale sensing rod 22. The scale sensing rod 22 cooperates with the corresponding control metering valve to inject a corresponding amount of medicine into the sedimentation box 7 according to the trigger scale line on the scale sensing rod 22.

[0073] When the water storage box 23 moves downward, it drives the trigger mark 28 on it to move downward. When the wastewater is injected, the water storage box 23 drives the trigger mark 28 to move downward to the maximum position. At this time, the scale sensing rod 22 will cooperate with the trigger mark 28 to start, and record the scale data, and at the same time transmit the scale data to the corresponding control metering valve;

[0074] The control metering valve will open, allowing the neutralizing agent or flocculant in the medicine storage box 8 to be injected into the sedimentation box 7 through the medicine supply pipe 25. At the same time, the amount of agent injected is accurately controlled by controlling the metering valve so that the amount of agent injected is the same as the scale data of the scale sensing rod 22. The quantitative injection of the agent can be completed to avoid excessive or insufficient amounts, and the sedimentation treatment effect is better.

[0075] Neutralizing agents include alkaline substances (sodium hydroxide) and acidic substances (such as sulfuric acid). Appropriate neutralizing agents can be flexibly selected according to the actual pH value of the wastewater to neutralize the wastewater and produce white flocculent aluminum hydroxide precipitation to reduce the corrosive hazards of the wastewater;

[0076] Flocculants can be calcium hydroxide or aluminum hydroxide, etc., which are used to combine with oxides or aluminum ions in the corrosion foil wastewater to form precipitates, complete flocculation and precipitation, and achieve efficient precipitation and purification treatment of macromolecular organic matter and heavy metals.

[0077] In a further embodiment, a water pressure disc 29 is provided in the filter press assembly, and the wastewater in the sediment is squeezed out by squeezing the water pressure disc 29. The driving roller 11 is rotatably connected to the wastewater treatment tank 1. A plurality of mixing wheels 26 for stirring the wastewater are fixedly mounted on the driving roller 11, and the plurality of mixing wheels 26 are all located on the upper part of the water storage box 23 in the sedimentation tank 7.

[0078] After the neutralizing agent and the flocculating agent are injected, the driving roller 11 drives the mixing and stirring wheel 26 to rotate forward to mix and stir the wastewater and the agent in the sedimentation tank 7, so that the wastewater and the agent are fully mixed, effectively improving the efficiency of the neutralization and flocculation sedimentation of the wastewater, and completing the secondary treatment of the wastewater;

[0079] A sedimentation tank 27 for storing sediment is provided in the carrying water storage box 23 . Sediment generated during neutralization and flocculation will gradually accumulate in the sedimentation tank 27 in the carrying water storage box 23 , completing the accumulation and collection of sediment.

[0080] In a further embodiment, a water squeezing mechanism is installed in the water storage box 23, and the water squeezing mechanism includes a linkage rod 30 rotatably installed in the sedimentation box 7, a one-way bearing 31 is provided on the driving roller 11, and the one-way bearing 31 cooperates with the reverse rotation of the driving roller 11, a worm 33 is fixedly installed on the one-way bearing 31, and a worm wheel 34 that cooperates with the worm 33 is fixedly installed on the linkage rod 30;

[0081] After settling for a period of time, when the clear and turbid wastewater in the sedimentation box 7 is separated, the sedimentation is completed. At this time, the servo motor 10 can be started to drive the driving roller 11 to reverse. When the driving roller 11 reverses, it will drive the one-way bearing 31 to rotate in the opposite direction, and then drive the worm 33 to rotate. The rotation of the worm 33 will drive the worm wheel 34 matched with it to rotate. When the worm wheel 34 rotates, it will drive the linkage rod 30 on it to rotate together.

[0082] A water pressure plate 29 is slidably mounted on the driving roller 11, and a lifting gear rod 36 is fixedly mounted on the lower part of the water pressure plate 29. An incomplete gear 35 is fixedly mounted on the linkage rod 30, and the incomplete gear 35 is meshed with the lifting gear rod 36. A reset elastic frame 37 for reset is fixedly mounted between the lifting gear rod 36 and the sedimentation box 7.

[0083] When the linkage rod 30 rotates, it drives the incomplete gear 35 thereon to rotate. When the incomplete gear 35 rotates to engage with the lifting gear rod 36, it pulls the lifting gear rod 36 downward, and then pulls the water pressure plate 29 to move downward in the sedimentation tank 27, while compressing the reset elastic frame 37. When the incomplete gear 35 is no longer engaged with the lifting gear rod 36, the reset elastic frame 37 automatically extends and resets, thereby pushing the lifting gear rod 36 and the water pressure plate 29 to move upward and reset. The incomplete gear 35 rotates continuously and the above steps are repeated to realize the reciprocating up and down movement of the water pressure plate 29.

[0084] The lower part of the sedimentation tank 27 cooperates with the water pressure plate 29. The water pressure plate 29 is provided with a plurality of filter grooves 32 for squeezing out the wastewater. When the water pressure plate 29 moves downward, it effectively squeezes the sediment in the sedimentation tank 27, squeezing out the wastewater in the sediment and causing the wastewater to flow back to the upper part of the water pressure plate 29 through the filter grooves 32 on the water pressure plate 29.

[0085] A drain pipe 4 for discharging sewage is fixedly installed on the water pressure disc 29. The wastewater on the upper part of the water pressure disc 29 will be directly discharged through the drain pipe 4. That is, when the water pressure disc 29 squeezes the sediment, the wastewater in the sediment will be squeezed out and will flow back to the upper part of the water pressure disc 29 through the filter tank 32, and will be directly discharged through the drain pipe 4, thereby completing the complete pressure removal of the wastewater in the sediment and completing the tertiary treatment of the wastewater.

[0086] The sediment storage tank 27 is fixedly connected to a drain pipe 5 for discharging the sediment. After the sediment is pressurized, the drain pipe 5 can be opened to discharge the sediment from the wastewater treatment tank 1.

[0087] The drain pipe 4 and the sewage pipe 5 are both elastic pipes, and thus can adapt to the lifting and movement of the water pressure plate 29 and the water storage box 23, so that the drain pipe 4 and the sewage pipe 5 will not be damaged when the two are lifted and moved.

[0088] The specific working principle of this wastewater treatment device is as follows: the foil corrosion wastewater to be treated is injected into the filter box 6 through the wastewater inlet pipe 2. At this time, the filter holes 20 on the filter plate 17 will filter the wastewater, so that the larger impurities in the wastewater cannot pass through the filter holes 20 and are accumulated in the upper part of the filter plate 17, while the smaller impurities will continue to fall through the filter holes 20 together with the wastewater;

[0089] During the wastewater filtration process, the servo motor 10 is started to drive the driving roller 11 to rotate forward. When the driving roller 11 rotates forward, it drives the reciprocating screw 14 on it to rotate. The rotation of the reciprocating screw 14 drives the ball nut plate 21 on it to move back and forth on the reciprocating screw 14, thereby driving the synchronous frame 13 to move back and forth. When the synchronous frame 13 moves back and forth, it drives the lifting pressure plate 16 to move back and forth through the two extrusion springs 15;

[0090] When the lifting and lowering pressure plate 16 moves downward, it can squeeze the wastewater in the filter box 6 below it, speed up the speed of wastewater passing through the filter holes 20, and improve the efficiency of wastewater filtration. It can also drive the dredging rod 19 to move downward, and insert the dredging rod 19 into the filter holes 20 at the corresponding positions on the filter plate 17, so as to penetrate and dredge the filter holes 20, avoid clogging of the filter holes 20, and complete the primary treatment of the wastewater.

[0091] After filtration in the filter box 6, the wastewater will be introduced into the sedimentation box 7 through the square sewer pipe 12, and at the same time accumulated on the carrying water storage box 23. As the wastewater content gradually increases, the wastewater will gradually press the carrying water storage box 23 to make it move downward in the sedimentation box 7. When the carrying water storage box 23 moves downward, the downward movement amount is recorded by the control mechanism. After the wastewater is injected, the control metering valve is opened to allow the neutralizing agent or flocculant in the medicine storage box 8 to be injected into the sedimentation box 7 through the upper medicine pipe 25. At the same time, the amount of agent injection is accurately controlled by the control metering valve so that the amount of agent injection is the same as the scale data of the scale sensing rod 22, thereby completing the quantitative injection of the agent to avoid excessive or insufficient amounts.

[0092] After the neutralizing agent and the flocculating agent are injected, the driving roller 11 drives the mixing and stirring wheel 26 to rotate forward to mix and stir the wastewater and the agent in the sedimentation tank 7, so that the wastewater and the agent are fully mixed. The sediment generated during the neutralization and flocculation will gradually accumulate in the sedimentation tank 27 in the water storage box 23, completing the accumulation and collection of the sediment and completing the secondary treatment of the wastewater.

[0093] After settling for a period of time, when the wastewater in the sedimentation box 7 is separated into clear and turbid water, the sedimentation is completed. At this time, the servo motor 10 can be started to drive the drive roller 11 to reverse, and the water pressing plate 29 can be moved back and forth by the cooperation of the water squeezing mechanism. When the water pressing plate 29 moves downward, it can effectively squeeze the sediment in the sediment storage tank 27, so as to squeeze out the wastewater in the sediment and make the wastewater flow back to the upper part of the water pressing plate 29 through the water filter trough 32 on the water pressing plate 29;

[0094] That is, when the water pressure plate 29 squeezes the sediment, the wastewater in the sediment is squeezed out and flows back to the upper part of the water pressure plate 29 through the filter tank 32, and is directly discharged through the drain pipe 4, thereby completing the complete pressure removal of the wastewater in the sediment and completing the tertiary treatment of the wastewater. After the sediment is squeezed out, the drain pipe 5 can be opened to discharge the sediment from the wastewater treatment tank 1.

[0095] The embodiment of the present invention further provides a method for treating wastewater used in the production of corroded foil. The wastewater treatment device used in the production of corroded foil comprises the following steps:

[0096] S1. Wastewater generated during the production of the corrosion foil is injected into the filter unit through the wastewater inlet pipe 2 and filtered through the filter holes 20 in the filter assembly to remove large impurities in the wastewater;

[0097] S2, while filtering, the dredging component controls the dredging rod 19 to move back and forth, intermittently dredging the filter holes 20 to prevent the filter holes 20 from being blocked;

[0098] S3. The filtered wastewater is injected into the sedimentation unit, and an appropriate amount of neutralizer and flocculant is injected into the wastewater through the dosing component according to the wastewater content to perform neutralization and flocculation precipitation of the wastewater;

[0099] S4. After sedimentation, the sediment is reciprocally squeezed through the filter press assembly to remove the wastewater in the sediment, and the wastewater and sediment are discharged separately after the filter press is completed.

[0100] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A wastewater treatment device for the production of corrosion foil, comprising a wastewater treatment tank (1) for storing and collecting corrosion foil wastewater, characterized in that: Also includes: A servo motor (10) is provided in the wastewater treatment tank (1), and a driving roller (11) is provided on the driving end of the servo motor (10). The servo motor (10) and the driving roller (11) cooperate to realize the opening and closing operation of the filtration unit and the sedimentation unit, thereby realizing automatic filtration and sedimentation treatment of the wastewater; A filter unit is provided in a wastewater treatment tank (1), and a wastewater inlet pipe (2) for collecting wastewater is provided between the filter unit and the wastewater treatment tank (1). A filter assembly and a dredging assembly are provided in the filter unit. A filter disc (17) is provided in the filter assembly, and a plurality of filter holes (20) are provided on the filter disc (17) for filtering large-volume impurities in the wastewater. A dredging rod (19) is provided in the dredging assembly for dredging the filter holes (20); The sedimentation unit is used to collect the wastewater filtered by the filter unit, and includes a dosing component and a filter press component. The dosing component is used to automatically inject an appropriate amount of neutralizer and flocculant into the wastewater according to the content of the wastewater to achieve neutralization and flocculation precipitation of the wastewater. The filter press component is provided with a water pressure plate (29) to squeeze the water pressure plate (29) to achieve pressure removal of the wastewater in the sediment; The filter assembly comprises a filter box (6) arranged in a wastewater treatment tank (1), the filter press assembly comprises a sedimentation box (7) fixedly installed in the wastewater treatment tank (1), and a water discharge square pipe (12) for guiding water is fixedly connected between the sedimentation box (7) and the filter box (6), a carrying water storage box (23) for carrying wastewater is slidably installed in the sedimentation box (7), and a control mechanism is installed between the carrying water storage box (23) and the two medicine storage boxes (8), and a water squeezing mechanism is installed in the carrying water storage box (23); The water squeezing mechanism includes a linkage rod (30) rotatably mounted in the sedimentation box (7); a one-way bearing (31) is provided on the driving roller (11), and the one-way bearing (31) cooperates with the reverse rotation of the driving roller (11); a worm (33) is fixedly mounted on the one-way bearing (31), and a worm wheel (34) cooperating with the worm (33) is fixedly mounted on the linkage rod (30); a water pressure plate (29) is slidably mounted on the driving roller (11), and a lifting gear rod (36) is fixedly mounted on the lower part of the water pressure plate (29); an incomplete gear (35) is fixedly mounted on the linkage rod (30), and the incomplete gear (35) is meshed with the lifting gear rod (36); a reset elastic frame (37) for reset is fixedly mounted between the lifting gear rod (36) and the sedimentation box (7); A sedimentation tank (27) for storing sediment is provided in the supporting water storage box (23), and the lower part of the sedimentation tank (27) cooperates with the water pressure plate (29). Two supporting spring rods (24) are fixedly installed between the supporting water storage box (23) and the sedimentation tank (7). A plurality of filter grooves (32) for squeezing out sewage are provided on the water pressure plate (29). A drainage pipe (4) for discharging sewage is fixedly installed on the water pressure plate (29). A sewage pipe (5) for discharging sediment is fixedly connected to the sedimentation tank (27), and both the drainage pipe (4) and the sewage pipe (5) are elastic pipes.

2. A wastewater treatment device for corrosion foil production according to claim 1, characterized in that: The wastewater inlet pipe (2) is located between the filter box (6) and the wastewater treatment tank (1), and the filter disc (17) is fixedly installed in the filter box (6). The driving roller (11) and the filter box (6) are rotatably connected, and a stirring blade (18) for stirring the wastewater is fixedly installed on the driving roller (11), and the stirring blade (18) is located above the filter disc (17) in the filter box (6); A square impurity suction pipe (9) for sucking out impurities is fixedly connected between the filter box (6) and the wastewater treatment tank (1), and the square impurity suction pipe (9) is located on the upper part of the filter disc (17).

3. A wastewater treatment device for corrosion foil production according to claim 2, characterized in that: The dredging assembly comprises a reciprocating screw (14) fixedly mounted on a driving roller (11), a ball nut plate (21) being mounted on the reciprocating screw (14), and a synchronous frame (13) being fixedly mounted on the ball nut plate (21), a lifting pressure plate (16) being fixedly mounted on the synchronous frame (13) via two extrusion springs (15), and the two extrusion springs (15) are rotatably connected to the filter box (6), and a plurality of dredging rods (19) are fixedly mounted on the lower part of the lifting pressure plate (16).

4. A wastewater treatment device for corrosion foil production according to claim 3, characterized in that: The dosing assembly comprises two medicine storage boxes (8) fixedly installed in the wastewater treatment tank (1), and the two medicine storage boxes (8) are used to store a neutralizer and a flocculant respectively. A medicine replenishing pipe (3) for replenishing medicine is fixedly connected between the two medicine storage boxes (8) and the wastewater treatment tank (1), and a medicine supply pipe (25) for injecting medicine is fixedly connected between the two medicine storage boxes (8) and the sedimentation tank (7), and a control metering valve for controlling the injection amount is provided on the two medicine supply pipes (25).

5. A wastewater treatment device for corrosion foil production according to claim 4, characterized in that: The driving roller (11) is rotatably connected to the wastewater treatment tank (1). A plurality of mixing wheels (26) for stirring the wastewater are fixedly mounted on the driving roller (11), and the plurality of mixing wheels (26) are all located on the upper portion of the water storage box (23) in the sedimentation tank (7).

6. The wastewater treatment device for corrosion foil production according to claim 5, characterized in that: The control mechanism comprises a scale sensing rod (22) fixedly mounted on the side of the sedimentation tank (7); a triggering rod (28) fixedly mounted on the carrying water storage box (23); the triggering rod (28) cooperates with the scale sensing rod (22); the scale sensing rod (22) cooperates with a corresponding control metering valve, and is used to inject a corresponding amount of medicine into the sedimentation tank (7) according to the triggering scale line on the scale sensing rod (22).

7. A method for treating wastewater used in the production of etched foil, used in the wastewater treatment device for the production of etched foil according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Injecting wastewater generated during the production of the corrosion foil into the filter unit through the wastewater inlet pipe (2), and filtering it through the filter holes (20) in the filter assembly to remove large-volume impurities in the wastewater; S2, while filtering, the dredging rod (19) is controlled to move back and forth by the dredging component to intermittently dredge the filter hole (20) to prevent the filter hole (20) from being blocked; S3. The filtered wastewater is injected into the sedimentation unit, and an appropriate amount of neutralizer and flocculant is injected into the wastewater through the dosing component according to the wastewater content to perform neutralization and flocculation precipitation of the wastewater; S4. After sedimentation, the sediment is reciprocally squeezed through the filter press assembly to remove the wastewater in the sediment, and the wastewater and sediment are discharged separately after the filter press is completed.

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