Tin plate electroplating wastewater treatment device

Abstract

The invention discloses a treatment device for tin plate electroplating wastewater, and relates to the technical field of electroplating wastewater treatment.The treatment device comprises a treatment box, sliding grooves are symmetrically formed in the upper end face of the treatment box, vertical plates are slidably connected into the sliding grooves, penetrating grooves are formed in the vertical plates, a transverse plate is arranged between the vertical plates, and a chemical storage box is fixedly connected to the upper end face of the transverse plate; liquid outlets are fixedly connected to the lower end face of the agent storage box at equal intervals and are fixedly connected to the transverse plate in a penetrating manner, so that chemical agents can be dispersed in wastewater in a fine liquid drop or mist form, compared with a manner of stirring after pouring or scattering, the chemical agents are more uniformly distributed in the wastewater, and the situation that the concentration of the chemical agents in a local area is too high, so that the wastewater cannot be polluted can be avoided. And moreover, the uniformly distributed chemicals can be more fully contacted and reacted with heavy metal ions in the wastewater, so that the reaction efficiency is improved, more heavy metal ions are effectively removed, the overall treatment effect is improved, and the effluent quality is ensured to be more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of electroplating wastewater treatment, and particularly to a treatment device for electroplated tin plate wastewater. Background Art

[0002] Electroplated tin plate wastewater is industrial wastewater generated in the production process of electroplated tin plates. Its composition is complex, containing not only high-concentration tin ions but also various other pollutants, such as heavy metal ions (including toxic and harmful elements such as lead, cadmium, and chromium), various organic substances (containing substances difficult to degrade such as grease, surfactants, and dyes), as well as suspended solids and acid-base substances present. If such wastewater is directly discharged into the natural environment without any effective treatment, it will cause serious pollution and damage to the water ecosystem, soil quality, and atmospheric environment. It not only threatens the survival and reproduction of aquatic organisms but also poses a potential risk to human health through the food chain. Therefore, at the beginning of the generation of electroplated tin plate wastewater, scientific and efficient treatment measures must be taken to ensure that the pollutants in the wastewater are effectively removed or transformed to meet the national or local discharge standards, thereby protecting the ecological environment and human health;

[0003] During the treatment of electroplating wastewater, chemical agents need to be added to the wastewater to remove heavy metals. However, when adding chemical agents, they are generally poured or scattered into the electroplating wastewater, and then through stirring, the chemical agents are mixed with the wastewater. This feeding method not only easily causes the agents to accumulate on the surface or in local areas of the wastewater and is difficult to evenly disperse into the entire wastewater system by itself in a short time, resulting in a high concentration of agents in local areas and a serious shortage of agent concentration in other areas, forming an obvious concentration difference, but also due to the uneven distribution of the agents and insufficient reaction, a large number of heavy metal ions cannot effectively contact and react with the agents, making it difficult to be removed, thus greatly reducing the overall effect of wastewater treatment and failing to achieve the expected purification goal.

[0004] Therefore, the present invention proposes a treatment device for electroplated tin plate wastewater to solve the above problems. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a treatment device for electroplated tin plate wastewater, which can effectively solve the problems in the prior art.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the object of the present invention can be realized through the following technical solutions:

[0009] A treatment device for electroplated tinplate wastewater, including a treatment tank. Symmetric chutes are provided on the upper end face of the treatment tank. Vertical plates are slidably connected in the chutes respectively. Through grooves are provided on the vertical plates. A cross plate is arranged between the vertical plates. A chemical agent storage tank is fixedly connected to the upper end face of the cross plate. Liquid outlets are fixedly connected to the lower end face of the chemical agent storage tank at equal intervals. The liquid outlets penetrate and are fixedly connected to the cross plate. It also includes a chemical agent spraying mechanism and a spraying height control mechanism. The chemical agent spraying mechanism includes injection cylinders arranged at equal intervals. The injection cylinders are fixedly connected to the lower ends of the liquid outlets respectively. One-way valves are arranged inside the upper and lower ends of the injection cylinders respectively. The injection cylinders are slidably connected through the sides far away from the liquid outlets by piston rods. Connecting plates are fixedly connected to the outer surfaces of the injection cylinders. The connecting plates are fixedly connected to the lower end face of the cross plate. The chemical agent spraying mechanism is used to spray chemical agents into the electroplated wastewater inside the treatment tank. The spraying height control mechanism is used to control the height of the injection cylinders from the wastewater during the spraying of chemical agents.

[0010] As a further scheme of the present invention: A moving plate is fixedly connected between the ends of the piston rods far away from the injection cylinders. A support plate is arranged above the moving plate. The support plate is fixedly connected to the side wall of the cross plate. A driving motor is fixedly connected to the upper end face of the support plate. A driving shaft is fixedly connected to the output end of the driving motor. The driving shaft penetrates and is rotatably connected to the support plate. A dial is fixedly connected to the lower end of the driving shaft. Fixed columns are arranged on both sides of the dial. Slide plates are fixedly connected to the lower ends of the fixed columns respectively. The slide plates are arranged on the side wall of the cross plate. The distance between one of the fixed columns and the cross plate is farther than that of the other fixed column, and the distances between the two fixed columns and the cross plate differ by one body position.

[0011] As a further scheme of the present invention: Grooves are symmetrically provided on the side of the cross plate close to the slide plates. The slide plates are slidably connected in the grooves.

[0012] As a further scheme of the present invention: Push plates are rotatably connected to the lower end faces of the slide plates respectively. A linkage plate is rotatably connected between the ends of the two push plates far away from the slide plates. A threaded rod is threadedly connected through the center of the linkage plate. The threaded rod is rotatably connected to the side wall of the cross plate. A knob is fixedly connected to the end of the threaded rod far away from the cross plate.

[0013] As a further scheme of the present invention: A fixing plate is fixedly connected to the side of the cross plate close to the threaded rod. The fixing plate is arranged above the threaded rod. A slider is slidably connected to the fixing plate. The slider is fixedly connected to the upper end face of the linkage plate.

[0014] As a further scheme of the present invention: Pointers are symmetrically fixedly connected to the upper end face of the slider. Scale bars are fixedly connected to the upper end face of the fixing plate at equal intervals close to the pointers. The scale bars are all arranged between the two pointers.

[0015] As a further solution of the present invention: the spraying height control mechanism includes symmetrically arranged lifting blocks and screw rods, the lifting blocks are vertically slidably connected in the through grooves, and the lifting blocks are fixedly connected to the side walls of the horizontal plate.

[0016] As a further solution of the present invention: the screw rods are all rotatably connected to the processing box, and the screw rods are all located in the slide grooves, the screw rods are all threadedly connected to the vertical plates, the screw rods are fixedly connected to pulleys away from the outer surfaces of the processing box, a belt is sleeved between the outer surfaces of the two pulleys, and one of the screw rods is fixedly connected to a driving source.

[0017] As a further solution of the present invention: the processing box is fixedly connected with a side panel close to the slide groove, the side panel is provided with a connecting groove, the side panel is symmetrically provided with inclined grooves, the inclined grooves and the connecting grooves are connected, and the inclined grooves are respectively arranged at both ends of the connecting grooves, and the inclined grooves are slidably connected with sliding columns, and the sliding columns are fixedly connected to the side walls of the lifting block.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides a treatment device for tinplate electroplating wastewater, which has the following beneficial effects:

[0020] 1. Through the reagent injection mechanism, the chemical reagent can be injected into the electroplating wastewater inside the treatment box by spraying. It can not only disperse the chemical reagent in the wastewater in the form of fine droplets or mist, but also make the distribution of the reagent in the wastewater more uniform compared with the method of pouring or sprinkling and then stirring, which can avoid the problem of excessive concentration of the reagent in some areas and insufficient concentration of the reagent in other areas. Moreover, the evenly distributed reagent can contact and react with the heavy metal ions in the wastewater more fully, improve the reaction efficiency, and make more heavy metal ions be effectively removed, thereby improving the overall treatment effect and ensuring more stable water quality of the effluent.

[0021] 2. The threaded rod, linkage plate and push plate can be used to push the slide plates on both sides to slide in opposite directions in the grooves, change the spacing between the fixed columns connected to the upper end faces of the slide plates, and thus change the timing of the fixed columns being moved by the paddle plates to achieve quantitative control of the injection of the reagents. This can not only accurately adjust the injection amount of the reagents according to the composition, concentration and treatment requirements of different electroplating wastewaters, ensure that the dosage of the reagents is just right each time, and allow the reagents to fully react with the heavy metal ion pollutants in the wastewater, thereby improving the efficiency and effect of wastewater treatment, and further ensuring that the effluent quality is stable and up to standard, but also accurately and quantitatively injecting the reagents can avoid waste caused by excessive reagents, reduce treatment costs, and at the same time, prevent incomplete treatment due to insufficient reagents and the need for secondary treatment, thereby further improving the economic efficiency of the treatment;

[0022] Among them, through the set slider, pointer and scale bar, each small grid on the scale bar represents a certain change in the chemical agent injection volume. The staff can accurately stop the slider at a certain scale to achieve precise control of the chemical agent injection volume, meet the strict requirements of different treatment processes for the chemical agent dosage, and facilitate the staff to quickly and accurately know the positions of the current slider and the fixed column during the process of adjusting the chemical agent injection volume, that is, the corresponding chemical agent injection volume. When it is necessary to quickly adjust the chemical agent injection volume to cope with emergencies, the staff can quickly adjust the slider to the required position according to the marks on the scale bar, saving operation time.

[0023] 3. Through the set spraying height control mechanism, during the process of injecting chemical agents into the electroplating wastewater inside the treatment tank, it can synchronously drive the chemical agent storage tank and the injection cylinder to move horizontally on the upper end face of the treatment tank, and inject the chemical agents everywhere in the electroplating wastewater. This can not only evenly apply the agents to the wastewater, making the pollutant removal effects in each area more consistent, significantly improving the overall treatment effect, ensuring that the effluent water quality meets the standards stably, reducing the secondary treatment cost caused by poor local treatment, but also enabling the chemical agents to come into more sufficient contact and reaction with the heavy metal ion pollutants in the wastewater, improving the reaction efficiency, and allowing the pollutants in different positions to react with the agents in a timely manner, reducing the incomplete reaction phenomenon caused by uneven distribution of the agents, thereby more effectively removing the pollutants in the wastewater.

[0024] 4. Through the set side plates, inclined grooves, communication grooves, sliding columns, lifting blocks and through grooves, during the process of the chemical agent storage tank and the injection cylinder moving horizontally to inject chemical agents into the electroplating wastewater inside the treatment tank, by driving the chemical agent storage tank and the injection cylinder to descend, the distance between the injection cylinder and the electroplating wastewater can be shortened. After the distance is shortened, not only can the chemical agents ejected from the injection cylinder 604 quickly contact the wastewater when they are ejected, avoiding the consumption of the impact force of the chemical agents due to the influence of the distance, thereby increasing the impact force when the chemical agents are injected into the wastewater, helping the agents to better penetrate the flocs or pollutant aggregation layers in the wastewater, enabling the agents to come into more in-depth contact with the pollutants and improving the reaction effect, but also avoiding the occurrence of splashing during the process of injecting chemical agents into the wastewater due to excessive height, reducing the risk of the operator coming into contact with the chemical agents, and ensuring the physical health and safety of the operator. Brief Description of the Drawings

[0025] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2Schematic diagram of the connection structure between the horizontal plate and the medicine storage box of the present invention;

[0028] Figure 3 Of the present invention Figure 2 Enlarged schematic diagram of area A in;

[0029] Figure 4 Of the present invention Figure 2 Enlarged schematic diagram of the connection part between the driving motor and the moving plate in;

[0030] Figure 5 Of the present invention Figure 4 Enlarged schematic diagram of area B in;

[0031] Figure 6 Schematic diagram of the connection structure between the horizontal plate and the side plate of the present invention;

[0032] Figure 7 Of the present invention Figure 6 Enlarged schematic diagram of area C in;

[0033] Figure 8 Schematic diagram of the connection structure between the lead screw and the vertical plate of the present invention.

[0034] In the figure: 1. Treatment box; 2. Chute; 3. Vertical plate; 4. Horizontal plate; 5. Medicine storage box;

[0035] 601. Driving motor; 602. Support plate; 603. Moving plate; 604. Syringe; 605. Connecting plate; 606. Piston rod; 607. Groove; 608. Slide plate; 609. Fixed column; 610. Driving shaft; 611. Pusher plate; 612. Threaded rod; 613. Pushing plate; 614. Fixed plate; 615. Linking plate; 616. Knob; 617. Slide block; 618. Pointer; 619. Scale bar;

[0036] 701. Lead screw; 702. Belt; 703. Pulley; 704. Side plate; 705. Connecting groove; 706. Inclined groove; 707. Lifting block; 708. Slide post;

[0037] 8. Liquid outlet; 9. Through groove. Detailed implementation manners

[0038] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] A treatment device for electroplated tinplate wastewater in this embodiment, as Figure 1 - Figure 8As shown in the figure, it includes a treatment tank 1. Symmetrically arranged sliding grooves 2 are provided on the upper end face of the treatment tank 1. Vertical plates 3 are slidably connected in the sliding grooves 2 respectively. Through grooves 9 are provided on the vertical plates 3 respectively. A cross plate 4 is arranged between the vertical plates 3. A chemical agent storage tank 5 is fixedly connected to the upper end face of the cross plate 4. Liquid outlets 8 are fixedly connected to the lower end face of the chemical agent storage tank 5 at equal intervals. The liquid outlets 8 penetrate and are fixedly connected to the cross plate 4 respectively. It also includes a chemical agent spraying mechanism and a spraying height control mechanism. The chemical agent spraying mechanism includes injection cylinders 604 arranged at equal intervals. The injection cylinders 604 are fixedly connected to the lower ends of the liquid outlets 8 respectively. Check valves are arranged inside the upper and lower ends of the injection cylinders 604 respectively. Pistons rods 606 penetrate and are slidably connected to the injection cylinders 604 on the sides far away from the liquid outlets 8 respectively. Connecting plates 605 are fixedly connected to the outer surfaces of the injection cylinders 604 respectively. The connecting plates 605 are fixedly connected to the lower end face of the cross plate 4. The chemical agent spraying mechanism is used to spray chemical agents into the electroplating wastewater inside the treatment tank 1.

[0040] In this embodiment, as Figure 2 - Figure 4 shown, a moving plate 603 is fixedly connected between the ends of the piston rods 606 far away from the injection cylinders 604. A support plate 602 is arranged above the moving plate 603. The support plate 602 is fixedly connected to the side wall of the cross plate 4. A driving motor 601 is fixedly connected to the upper end face of the support plate 602. A driving shaft 610 is fixedly connected to the output end of the driving motor 601. The driving shaft 610 penetrates and is rotatably connected to the support plate 602. A dial plate 611 is fixedly connected to the lower end of the driving shaft 610. Fixed columns 609 are arranged on both sides of the dial plate 611. Slide plates 608 are fixedly connected to the lower ends of the fixed columns 609 respectively. The slide plates 608 are arranged on the side wall of the cross plate 4 respectively. The distance between one of the fixed columns 609 and the cross plate 4 is farther than that of the other fixed column 609, and the distances between the two fixed columns 609 and the cross plate 4 differ by one body position. When the driving motor 601 drives the dial plate 611 to move through the driving shaft 610, the dial plate 611 will first push the fixed column 609 with a farther distance to move, driving the slide plate 608 and the cross plate 4 to move horizontally away from the injection cylinder 604, pulling the piston rod 606 out of the injection cylinder 604. Then, with the continuous movement of the dial plate 611, the dial plate 611 will come into contact with the fixed column 609 with a closer distance again and push the fixed column 609, driving the slide plate 608 and the cross plate 4 to move horizontally close to the injection cylinder 604, and pushing the piston rod 606 into the injection cylinder 604 again.

[0041] In this embodiment, as Figure 4 shown, grooves 607 are symmetrically provided on the side of the cross plate 4 close to the slide plates 608. The slide plates 608 are slidably connected in the grooves 607 respectively. By driving the slide plates 608 to slide in the grooves 607, the distance between the two slide plates 608 can be changed.

[0042] In this embodiment, as Figure 4 and Figure 5As shown, push plates 613 are rotatably connected to the lower end surfaces of the skateboards 608. A linkage plate 615 is rotatably connected between the ends of the two push plates 613 away from the skateboards 608. A threaded rod 612 passes through the center of the linkage plate 615 in a threaded connection. The threaded rod 612 is rotatably connected to the side wall of the cross plate 4. One end of the threaded rod 612 away from the cross plate 4 is fixedly connected to a knob 616. When the knob 616 is rotated to drive the threaded rod 612 to rotate, due to the threaded connection between the threaded rod 612 and the linkage plate 615, the linkage plate 615 can be driven to move synchronously on the outer surface of the threaded rod 612. And through the push plates 613 rotatably connected between the linkage plate 615 and the skateboards 608, the skateboards 608 can be pulled closer to each other or pushed away from each other.

[0043] In this embodiment, as Figure 5 shown, a fixing plate 614 is fixedly connected to the side of the cross plate 4 close to the threaded rod 612. The fixing plate 614 is arranged above the threaded rod 612. A slider 617 is slidably connected to the fixing plate 614. The slider 617 is fixedly connected to the upper end surface of the linkage plate 615. When the linkage plate 615 moves on the outer surface of the threaded rod 612, the slider 617 can be driven to slide on the fixing plate 614 at the same time.

[0044] In this embodiment, as Figure 5 shown, pointers 618 are symmetrically and fixedly connected to the upper end surface of the slider 617. Scale bars 619 are fixedly connected at equal intervals to the upper end surface of the fixing plate 614 close to the pointers 618. The scale bars 619 are all arranged between the two pointers 618. When the slider 617 slides on the upper end surface of the fixing plate 614, through the pointers 618 and the scale bars 619, the staff can control the distance that the slider 617 moves on the fixing plate 614.

[0045] In the prior art, when dispensing chemical agents, they are generally poured or scattered into electroplating wastewater, and then mixed with the wastewater by stirring. This dispensing method not only easily causes the agents to accumulate on the surface of the wastewater or in local areas and is difficult to uniformly disperse into the entire wastewater system by itself in a short time, resulting in too high a concentration of agents in local areas and a serious shortage of agent concentration in other areas, forming an obvious concentration difference, but also due to the uneven distribution of the agents and insufficient reaction, a large number of heavy metal ions cannot effectively contact and react with the agents, making it difficult to be removed, thus greatly reducing the overall effect of wastewater treatment and failing to achieve the expected purification goal. Compared with the prior art, the chemical agents can be injected into the electroplating wastewater inside the treatment tank 1 by spraying, which can not only disperse the chemical agents in the wastewater in the form of fine droplets or mist, but also make the distribution of the agents in the wastewater more uniform compared with the method of pouring or scattering and then stirring, avoiding the problem of too high a concentration of agents in local areas and insufficient agent concentration in other areas. Moreover, the uniformly distributed agents can more fully contact and react with the heavy metal ions in the wastewater, improving the reaction efficiency, enabling more heavy metal ions to be effectively removed, thereby enhancing the overall treatment effect and ensuring more stable effluent water quality.

[0046] On other levels, this embodiment also provides a spraying height control mechanism for controlling the height of the injection cylinder 604 from the wastewater during the spraying of chemical agents, as Figure 1 , Figure 6 - Figure 8 shown. The spraying height control mechanism includes symmetrically arranged lifting blocks 707 and lead screws 701. The lifting blocks 707 are both vertically slidably connected in the through groove 9, and the lifting blocks 707 are both fixedly connected to the side wall of the cross plate 4.

[0047] In this embodiment, as Figure 6 and Figure 8 shown, the lead screws 701 are both rotatably connected through the treatment tank 1, and the lead screws 701 are both located in the sliding groove 2. The lead screws 701 are both threadedly connected through the vertical plate 3. The lead screws 701 are both fixedly connected with pulleys 703 away from the outer surface of the treatment tank 1. A belt 702 is sleeved between the outer surfaces of the two pulleys 703. A driving source is fixedly connected to one of the lead screws 701. When the external driving source is turned on to drive one of the lead screws 701 to rotate, through the transmission connection of the belt 702 and the pulleys 703, the other lead screw 701 can be driven to rotate synchronously, driving the vertical plate 3 threadedly connected to the outer surface of the lead screw 701 to slide horizontally in the sliding groove 2.

[0048] In this embodiment, as Figure 6 and Figure 7As shown in the figure, side plates 704 are fixedly connected to both sides of the treatment tank 1 close to the chute 2. Communication grooves 705 are formed in the side plates 704. Inclined grooves 706 are symmetrically formed in the side plates 704. The inclined grooves 706 and the communication grooves 705 are connected. The inclined grooves 706 are respectively arranged at both ends of the communication groove 705. Slide columns 708 are slidably connected in the inclined grooves 706. The slide columns 708 are fixedly connected to the side walls of the lifting blocks 707. When the lifting blocks 707 move horizontally, affected by the slide columns 708 and the inclined grooves 706, they will move downward or upward synchronously.

[0049] Compared with the prior art, during the process of spraying chemical agents into the electroplating wastewater inside the treatment tank 1, it can synchronously drive the chemical agent storage tank 5 and the injection cylinder 604 to move horizontally on the upper end surface of the treatment tank 1, and inject chemical agents to various parts of the electroplating wastewater. This can not only evenly apply the agents to the wastewater, making the pollutant removal effects in each area more consistent, significantly improving the overall treatment effect, ensuring that the effluent water quality meets the standards stably, and reducing the secondary treatment cost caused by poor local treatment. Moreover, it can also make the chemical agents contact and react with the heavy metal ion pollutants in the wastewater more fully, improve the reaction efficiency, and enable the pollutants at different positions to react with the agents in a timely manner, reducing the incomplete reaction phenomenon caused by uneven distribution of the agents, thereby more effectively removing the pollutants in the wastewater.

[0050] The working process and principle involved in the overall content of the above embodiments are as follows:

[0051] During the process of staff members' need to treat the electroplating wastewater inside the treatment tank 1, first, an external drive source connected to one of the lead screws 701 is turned on to drive one of the lead screws 701 to rotate. Since pulleys 703 are fixedly connected to the outer surfaces of both lead screws 701, and a belt 702 is sleeved between the outer surfaces of the pulleys 703, when one of the lead screws 701 rotates, through the transmission connection of the pulleys 703 and the belt 702, the other lead screw 701 can be driven to rotate synchronously, so that the two lead screws 701 rotate in the sliding grooves 2 opened at the upper end of the treatment tank 1. As the lead screws 701 rotate, the lead screws 701 can drive the vertical plates 3 to move horizontally in the sliding grooves 2 through the threaded connection with the vertical plates 3. Since through grooves 9 are opened in the vertical plates 3, lifting blocks 707 are vertically slidably connected in the through grooves 9, and the lifting blocks 707 are fixedly connected to the side walls of the cross plates 4, during the horizontal movement of the vertical plates 3, the lifting blocks 707 can be toggled through the through grooves 9 to drive the cross plates 4 to move synchronously above the treatment tank 1, so that the chemical agent storage tanks 5 connected above the cross plates 4 can uniformly spray the internal chemical agents into the electroplating wastewater inside the treatment tank 1. This can not only evenly apply the agents to the wastewater, making the pollutant removal effects in each area more consistent, significantly improving the overall treatment effect, ensuring that the effluent water quality meets the standards stably, reducing the secondary treatment cost caused by poor local treatment, but also enabling more sufficient contact and reaction with the heavy metal ion pollutants in the wastewater, improving the reaction efficiency, and allowing the pollutants at different positions to react with the agents in a timely manner, reducing the incomplete reaction phenomenon caused by uneven distribution of the agents, thereby more effectively removing the pollutants in the wastewater;

[0052] During the horizontal movement of the medicine storage box 5, the driving motor 601 connected to the upper end of the support plate 602 is turned on at the same time, driving the driving shaft 610 to rotate synchronously on the supporting plate 602, driving the paddle plate 611 connected to the lower end of the driving shaft 610 to move synchronously with the driving shaft 610 as the center of the circle, and with the movement of the paddle plate 611, the paddle plate 611 will preferentially contact the fixed column 609 far away from the horizontal plate 4, and paddle the fixed column 609, and drive the horizontal plate 4 away from the injection barrel 604 through the slide plate 608 connected to the lower end of the fixed column 609, so that the horizontal plate 4 pulls out the piston rod 606 in the injection barrel 604. During the process of the injection barrel 604 sliding out, the chemical agent in the medicine storage box 5 will be sucked into the injection barrel 604 through the liquid outlet 8 due to the negative pressure of the air. At this time, the paddle 611 continues to poke the fixed column 609 to drive the horizontal plate 4 to move, and the paddle 611 will gradually separate from one of the fixed columns 609. When the paddle 611 and one of the fixed columns 609 are completely separated, the paddle 611 will extract the chemical agent to be sprayed from the medicine storage box 5 through the fixed column 609, the slide plate 608, the horizontal plate 4 and the piston rod 606. As the paddle 611 continues to move, the two fixed columns 609 are relatively larger than the horizontal plate 609. 4 is only one body length apart, so although the paddle plate 611 is separated from one of the fixed columns 609, it can contact with another fixed column 609 close to the horizontal plate 4 during the subsequent movement, and push the fixed column 609, and drive the horizontal plate 4 to approach the syringe 604 again through the slide plate 608 connected to the lower end of the fixed column 609, and push the piston rod 606 connected to the side wall of the horizontal plate 4 into the piston cylinder again. At this time, since the syringe 604 is provided with a one-way valve at the top and bottom, and the syringe 604 has extracted the chemical agent into the syringe 604 through the liquid outlet 8 connected to the upper end, the piston rod 606 slides into the piston When the syringe 604 is filled with chemicals, the chemicals in the syringe 604 will be pushed out through the one-way valve at the lower end of the syringe 604, and injected into the electroplating wastewater in the treatment box 1. This can not only disperse the chemicals in the wastewater in the form of fine droplets or mist, but also make the chemicals more evenly distributed in the wastewater compared to the method of pouring or sprinkling and then stirring, thus avoiding the problem of excessive concentration of chemicals in local areas and insufficient concentration of chemicals in other areas. Moreover, the evenly distributed chemicals can contact and react with the heavy metal ions in the wastewater more fully, thus improving the reaction efficiency and effectively removing more heavy metal ions, thereby improving the overall treatment effect and ensuring that the effluent water quality is more stable.

[0053] When the vertical plate 3 drives the medicament storage box 5 to move above the treatment box 1 through the through groove 9, the lifting block 707 and the transverse plate 4, since a sliding column 708 is installed on the side of the lifting block 707 away from the transverse plate 4, and the sliding column 708 is slidably connected to the inclined groove 706 and the communication groove 705 formed on the side plate 704, when the transverse plate 4 drives the medicament storage box 5 to move horizontally, affected by the sliding column 708 and the inclined groove 706, the transverse plate 4 will drive the lifting block 707 to slide downward synchronously in the through groove 9, and at the same time drive the medicament storage box 5 to descend, so that the syringe 604 connected to the lower part of the medicament storage box 5 can approach the electroplating wastewater inside the treatment box 1, shortening the distance between the syringe 604 and the electroplating wastewater. After the distance is shortened, not only can the chemical medicament come into contact with the wastewater quickly when sprayed from the syringe 604, avoiding the consumption of the impact force of the chemical medicament due to the influence of the distance, thereby increasing the impact force when the chemical medicament is sprayed into the wastewater, which helps the medicament to better penetrate the floc or pollutant aggregation layer in the wastewater, enabling the medicament to contact the pollutants more deeply and improving the reaction effect, but also avoiding the situation of splashing during the injection of the chemical medicament into the wastewater due to excessive height, reducing the risk of the operator coming into contact with the chemical medicament, and ensuring the health and safety of the operator. When the sliding column 708 slides into the other inclined groove 706, it will drive the medicament storage box 5 to rise again through the lifting block 707 and the transverse plate 4, so that the syringe 604 connected to the lower part of the medicament storage box 5 is away from the electroplating wastewater, facilitating the detection and maintenance of the syringe 604 by the staff;

[0054] When the heavy metal content in the electroplating wastewater changes, the knob 616 is turned to drive the threaded rod 612 to rotate on the side wall of the horizontal plate 4. The threaded rod 612 and the linkage plate 615 are threadedly connected, and the linkage plate 615 is slidably connected to the fixed plate 614 through the slider 617 connected to the upper end surface. Therefore, during the rotation of the threaded rod 612, the linkage plate 615 can be driven to move horizontally on the outer surface of the threaded rod 612 close to the horizontal plate 4, and push the end of the push plate 613 symmetrically connected to the upper end surface of the linkage plate 615 to move synchronously. When the push plate 613 moves close to the linkage plate 615 under force, it will push the slide plate 608 connected to the end of the linkage plate 615 to slide synchronously in the groove 607 opened on the side wall of the horizontal plate 4, so that the slide plates 608 move away from each other. , and at the same time, the fixed column 609 connected to the upper end surface of the slide plate 608 is driven away from the dial plate 611, and the distance between the two fixed columns 609 is changed, so that the timing of the dial plate 611 to dial the fixed column 609 to move can be changed, so as to achieve the quantitative control of the injection of the reagent. It can not only accurately adjust the injection amount of the reagent according to the composition, concentration and treatment requirements of different electroplating wastewater, ensure that the amount of the reagent used in each treatment is just right, so that the reagent and the heavy metal ion pollutants in the wastewater can fully react, improve the efficiency and effect of wastewater treatment, and further ensure that the effluent water quality is stable and meets the standard, but also accurately and quantitatively injecting the reagent can avoid the waste caused by excessive reagent and reduce the treatment cost. At the same time, it can also prevent the situation where the treatment is not thorough due to insufficient reagent and secondary treatment is required, and further improve the economic efficiency of the treatment;

[0055] When the linkage plate 615 drives the slider 617 to move on the fixed plate 614 toward the horizontal plate 4, the pointer 618 symmetrically connected to the upper end of the slider 617 will move synchronously. Since a scale bar 619 is provided between the two pointers 618, each small grid on the scale bar 619 represents a certain change in the amount of agent injection. Therefore, the staff can accurately control the amount of agent injection by stopping the slider 617 accurately on a certain scale, so as to meet the strict requirements of different treatment processes on the amount of agent. In addition, it is convenient for the staff to quickly and accurately know the current position of the slider 617 and the fixed column 609, that is, the corresponding amount of agent injection, when the agent injection amount needs to be quickly adjusted to cope with an emergency, the staff can quickly adjust the slider 617 to the desired position according to the mark on the scale bar 619, thus saving operation time.

[0056] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A treatment device for electroplating tinplate wastewater, comprising a treatment tank (1). Symmetric sliding grooves (2) are provided on the upper end face of the treatment tank (1). Vertical plates (3) are slidably connected in the sliding grooves (2). Through grooves (9) are provided on the vertical plates (3). A cross plate (4) is arranged between the vertical plates (3). A chemical storage tank (5) is fixedly connected to the upper end face of the cross plate (4). Liquid outlets (8) are fixedly connected to the lower end face of the chemical storage tank (5) at equal intervals. The liquid outlets (8) are fixedly connected through the cross plate (4). It is characterized in that, It also includes a chemical agent injection mechanism and a spraying height control mechanism; The chemical agent injection mechanism includes injection cylinders (604) arranged at equal intervals. The injection cylinders (604) are fixedly connected to the lower end of the liquid outlet (8). One-way valves are arranged inside the upper and lower ends of the injection cylinders (604). The injection cylinders (604) are slidably connected through the side away from the liquid outlet (8) with piston rods (606). The outer surfaces of the injection cylinders (604) are fixedly connected with connecting plates (605), and the connecting plates (605) are fixedly connected to the lower end surface of the cross plate (4). The chemical agent injection mechanism is used to inject chemical agents into the electroplating wastewater inside the treatment tank (1); The spraying height control mechanism is used to control the height of the injection cylinders (604) from the wastewater during the injection of chemical agents.

2. The treatment device for electroplated tinplate wastewater according to claim 1, wherein A moving plate (603) is fixedly connected between the ends of the piston rods (606) away from the injection cylinders (604). A support plate (602) is arranged above the moving plate (603). The support plate (602) is fixedly connected to the side wall of the cross plate (4). A driving motor (601) is fixedly connected to the upper end surface of the support plate (602). The output end of the driving motor (601) is fixedly connected with a driving shaft (610). The driving shaft (610) is rotatably connected through the support plate (602). A dial (611) is fixedly connected to the lower end of the driving shaft (610). Fixed columns (609) are arranged on both sides of the dial (611). The lower ends of the fixed columns (609) are fixedly connected with sliding plates (608). The sliding plates (608) are arranged on the side walls of the cross plate (4). The distance between one of the fixed columns (609) and the cross plate (4) is farther than that of the other fixed column (609), and the distances between the two fixed columns (609) and the cross plate (4) differ by one body position.

3. The treatment device for electroplated tinplate wastewater according to claim 2, wherein, Grooves (607) are symmetrically formed on one side of the cross plate (4) close to the sliding plates (608). The sliding plates (608) are slidably connected in the grooves (607).

4. The treatment device for electroplated tinplate wastewater according to claim 3, characterized in that, Push plates (613) are rotatably connected to the lower end surfaces of the sliding plates (608). A linkage plate (615) is rotatably connected between the ends of the two push plates (613) away from the sliding plates (608). A threaded rod (612) is threadedly connected through the center of the linkage plate (615). The threaded rod (612) is rotatably connected to the side wall of the cross plate (4). A knob (616) is fixedly connected to the end of the threaded rod (612) away from the cross plate (4).

5. The treatment device for electroplated tinplate wastewater according to claim 4, characterized in that, A fixing plate (614) is fixedly connected to one side of the cross plate (4) close to the threaded rod (612). The fixing plate (614) is arranged above the threaded rod (612). A slider (617) is slidably connected to the fixing plate (614). The slider (617) is fixedly connected to the upper end surface of the linkage plate (615).

6. The treatment device for electroplated tinplate wastewater according to claim 5, characterized in that, Pointers (618) are symmetrically and fixedly connected to the upper end surface of the slider (617). Scale bars (619) are fixedly connected at equal intervals to the upper end surface of the fixing plate (614) close to the pointers (618). The scale bars (619) are arranged between the two pointers (618).

7. The treatment device for electroplated tinplate wastewater according to claim 1, characterized in that, The spraying height control mechanism includes lifting blocks (707) and lead screws (701) symmetrically arranged. The lifting blocks (707) are vertically and slidably connected in the through slots (9), and the lifting blocks (707) are fixedly connected to the side walls of the cross plate (4).

8. The treatment device for electroplated tinplate wastewater according to claim 7, wherein The lead screws (701) are respectively and rotatably connected to the processing box (1) and are located in the sliding slots (2). The lead screws (701) are respectively and threadedly connected to the vertical plates (3). Pulleys (703) are fixedly connected to the outer surfaces of the lead screws (701) far away from the outer surface of the processing box (1). A belt (702) is sleeved between the outer surfaces of the two pulleys (703). A driving source is fixedly connected to one of the lead screws (701).

9. The treatment device for electroplated tinplate wastewater according to claim 8, characterized in that, Side plates (704) are fixedly connected to one side of the processing box (1) close to the sliding slots (2). Communication slots (705) are formed in the side plates (704). Inclined slots (706) are symmetrically formed in the side plates (704). The inclined slots (706) are communicated with the communication slots (705), and the inclined slots (706) are respectively arranged at both ends of the communication slot (705). Slide columns (708) are slidably connected in the inclined slots (706), and the slide columns (708) are fixedly connected to the side walls of the lifting blocks (707).

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