Chemical wastewater heavy metal reduction treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a chemical wastewater heavy metal reduction treatment device which comprises a treatment pond, a movably adjustable diversion baffle is arranged in the middle inside the treatment pond, the diversion baffle is of an inclined structure, an overflow opening is formed in the upper end of the inclined face of the diversion baffle, and a filter screen plate is installed inside the overflow opening. A water inlet pipe is arranged on the left side of the interior of the treatment tank, a chemical feeding pipe is arranged beside the water inlet pipe, and a water outlet pipe is arranged on the right side of the interior of the treatment tank. The movable and adjustable flow guide baffle is arranged in the treatment pond, so that the internal space of the treatment pond can be divided into two parts for different treatment flows of wastewater, a plurality of treatment ponds do not need to be built, the structural volume and the occupied area of treatment equipment are reduced, meanwhile, reduction precipitation and deep treatment can be completed through one treatment pond, and the cost is reduced. The two working procedures share the same set of stirring and dosing system, so that the use cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a device for reducing heavy metals in chemical wastewater. Background Technology

[0002] Chemical wastewater refers to process wastewater, cooling water, exhaust gas scrubbing water, and equipment and site washing water discharged during chemical production. Chemical wastewater may contain various harmful substances, including heavy metals, organic matter, and acids and alkalis. Some substances in chemical wastewater are highly toxic to the environment and organisms, such as cyanide, mercury, and chromium. Due to the complex composition and high toxicity of chemical wastewater, its treatment is relatively difficult and requires a combination of treatment methods.

[0003] The heavy metal reduction treatment process in chemical wastewater is a complex process aimed at converting toxic heavy metal ions into less toxic or more easily treatable forms. The process includes pretreatment, neutralization and adjustment, addition of reducing agents, precipitation separation, and advanced treatment. However, in existing technologies, after the wastewater undergoes reduction and precipitation separation in the treatment tank, it needs to be transported to other treatment tanks for further treatment. This necessitates the construction of multiple treatment tanks, resulting in large-scale equipment, a large footprint, and significant space requirements. Furthermore, multiple mixing and dosing systems are required, leading to high operating costs. Therefore, there is an urgent need for a chemical wastewater heavy metal reduction treatment device that can reduce the number of treatment tanks, the footprint, and operating costs to address these issues. Utility Model Content

[0004] To address the shortcomings of existing methods, this utility model provides a chemical wastewater heavy metal reduction treatment device, which solves the problems of existing wastewater treatment devices requiring the construction of multiple treatment tanks, large structural volume of the treatment equipment, large footprint, large space occupation, and the need to add multiple sets of stirring and dosing systems, resulting in high operating costs.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A heavy metal reduction treatment device for chemical wastewater includes a treatment tank. An adjustable baffle is positioned in the center of the treatment tank. The baffle is inclined, and an overflow port is located at the upper end of its inclined surface. A filter screen is installed inside the overflow port. A rubber pad surrounds the edge of the baffle. An inlet pipe is located on the left side of the treatment tank, and a dosing pipe is located beside the inlet pipe. An outlet pipe is located on the right side of the treatment tank. Two sets of fixed frames are symmetrically fixed on the left and right sides of the upper end of the treatment tank. Each set of fixed frames is equipped with a stirring motor, and a stirrer is mounted on the output end of the stirring motor.

[0007] Furthermore, a sealing airbag is fixedly provided on the outer side of the rubber pad, an air pump is fixedly installed on the upper surface of the guide baffle, a sealing air nozzle is installed at one end of the sealing airbag, and the sealing air nozzle is connected to the air pump through an air pipe.

[0008] Furthermore, a frame-type support frame is fixed to the right side of the flow guide baffle, and four sets of casters are symmetrically installed at the bottom of the support frame, with the casters in contact with the bottom surface of the treatment tank.

[0009] Furthermore, the treatment tank is provided with bottom plates on both the front and rear sides. A threaded screw is installed on the rear bottom plate. One end of the threaded screw is connected to the drive motor. A threaded slider is threadedly fitted onto the threaded screw. A first connecting plate is fixedly provided on the rear side of the upper surface of the flow guide baffle. The first connecting plate is fixedly connected to the threaded slider.

[0010] Furthermore, a guide rail is fixedly provided on the front base plate, and a movable slide is mounted on the guide rail. A second connecting plate is fixedly provided on the front side of the upper end of the flow guide baffle, and the second connecting plate is fixedly connected to the slide.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model, by setting a movable and adjustable flow guide baffle inside the treatment tank, can divide the internal space of the treatment tank into two parts for different wastewater treatment processes, avoiding the need to build multiple treatment tanks, significantly reducing the structural volume and floor space of the treatment equipment, and improving space utilization.

[0013] 2. This utility model can complete reduction sedimentation and deep treatment with a single treatment tank. The two processes share the same stirring and dosing system, eliminating the need for additional stirring and dosing systems and effectively reducing operating costs.

[0014] 3. This utility model enables the flow guide baffle to move and adjust by means of a threaded screw and guide rail, which facilitates the adjustment of the position of the flow guide baffle. The movable flow guide baffle makes it easy to adjust the size of the group space inside the treatment tank, so that the treatment tank can flexibly adapt to different treatment needs and further improve economic efficiency.

[0015] 4. The design of the rubber pad and sealing airbag in this utility model enhances the sealing between the guide baffle and the edge of the treatment pool, prevents wastewater leakage, and ensures the continuity and stability of the treatment process. The air pump inflates the sealing airbag through the air pipe, making the sealing effect more reliable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a top view of the present invention.

[0018] Figure 3 This is a partial structural schematic diagram of the present invention.

[0019] Figure 4 This is a partial structural schematic diagram of the present invention.

[0020] Figure 5 This is a schematic diagram of the flow guide baffle in this utility model.

[0021] Figure 6 This is a schematic diagram of the flow guide baffle from another angle in this utility model.

[0022] In the diagram: 1. Dosing pipe; 2. Inlet pipe; 3. Treatment tank; 4. Baffle; 5. Agitator; 6. Fixing frame; 7. Outlet pipe; 8. Agitator motor; 9. First connecting plate; 10. Air pump; 11. Air pipe; 12. Second connecting plate; 13. Base plate; 14. Guide rail; 15. Slide seat; 16. Drive motor; 17. Threaded slider; 18. Threaded screw; 19. Support frame; 20. Overflow port; 21. Filter screen; 22. Casters; 23. Rubber pad; 24. Sealing airbag. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0024] Example:

[0025] like Figures 1 to 6As shown, a chemical wastewater heavy metal reduction treatment device includes a treatment tank 3. An adjustable baffle 4 is installed in the middle of the treatment tank 3. The baffle 4 is inclined and divides the internal space of the treatment tank 3 into two parts for different treatment processes. An overflow port 20 is provided at the upper end of the inclined surface of the baffle 4, allowing wastewater from the left side of the treatment tank 3 to flow into the right side area, facilitating effective flow and distribution of wastewater within the tank. A filter screen 21 is installed inside the overflow port 20 to intercept solid substances in the wastewater. Rubber pads 23 are provided around the edges of the baffle 4 to improve its sealing and prevent wastewater leakage. An inlet pipe 2 is located on the left side of the treatment tank 3 to introduce wastewater into the treatment area. Tank 3 has a dosing pipe 1 next to the inlet pipe 2 for adding treatment agents, such as reducing agents, to the wastewater to remove heavy metal ions. Tank 3 has an outlet pipe 7 on the right side inside for discharging the treated wastewater. Two sets of fixed frames 6 are symmetrically fixed on the left and right sides of the upper end of tank 3. Each set of fixed frames 6 is equipped with a stirring motor 8, and a stirrer 5 is mounted on the output end of the stirring motor 8. The stirrer 5 rotates with the stirring motor 8 to stir the wastewater during treatment, promoting thorough mixing of the wastewater and treatment agent, and improving treatment efficiency. This design solves the problems of existing wastewater treatment devices requiring multiple treatment tanks 3, large structural volume, large footprint, and high operating costs due to the need for multiple stirring and dosing systems.

[0026] This invention, by setting a movable and adjustable baffle 4 inside the treatment tank 3, can divide the internal space of the treatment tank 3 into two parts for different wastewater treatment processes, avoiding the need to build multiple treatment tanks 3, significantly reducing the structural volume and floor space of the treatment equipment, and improving space utilization. At the same time, reduction sedimentation and deep treatment can be completed through one treatment tank 3, and the two processes share the same stirring and dosing system, eliminating the need to add multiple stirring and dosing systems, effectively reducing the cost of use.

[0027] In this embodiment, a sealing airbag 24 is fixedly mounted on the outer side of the rubber pad 23, and an air pump 10 is fixedly installed on the upper surface of the flow guide baffle 4. A sealing nozzle is installed at one end of the sealing airbag 24, and the sealing nozzle is connected to the air pump 10 through an air pipe 11. By inflating or deflating the sealing airbag 24 with the air pump 10, the tightness of the sealing airbag 24 can be dynamically adjusted, thereby ensuring the sealing performance between the flow guide baffle 4 and the inner wall of the treatment tank 3. During the wastewater treatment process, factors such as water flow impact, temperature changes, or equipment vibration may cause a decrease in sealing performance. At this time, the sealing effect can be quickly restored by adjusting the pressure of the sealing airbag 24 with the air pump 10.

[0028] In this embodiment, a frame-type support frame 19 is fixedly provided on the right side of the flow guide baffle 4. The support frame 19 provides a solid support for the flow guide baffle 4 and ensures the stability of the flow guide baffle 4. Four sets of casters 22 are symmetrically installed at the bottom of the support frame 19, and the casters 22 are in contact with the bottom surface of the treatment tank 3. The casters 22 ensure the stability of the flow guide baffle 4 during the movement process and can reduce the resistance of the flow guide baffle 4 during the movement process.

[0029] In this embodiment, the treatment tank 3 has base plates 13 on both the front and rear sides. A threaded screw 18 is installed on the rear base plate 13. One end of the threaded screw 18 is connected to the drive motor 16. A threaded slider 17 is threadedly fitted onto the threaded screw 18. A first connecting plate 9 is fixedly installed on the rear side of the upper end face of the flow guide baffle 4, and the first connecting plate 9 is fixedly connected to the threaded slider 17. Through the cooperation of the drive motor 16 and the threaded screw 18, the flow guide baffle 4 can be moved, which can realize the precise adjustment of the position of the flow guide baffle 4 and improve the convenience of operation.

[0030] In this embodiment, a guide rail 14 is fixedly mounted on the front base plate 13, and a movable slide block 15 is mounted on the guide rail 14. A second connecting plate 12 is fixedly mounted on the front side of the upper end of the flow guide baffle 4, and the second connecting plate 12 is fixedly connected to the slide block 15. The guide rail 14 and the slide block 15 provide a smooth and straight movement path for the flow guide baffle 4, ensuring the stability of the movement of the flow guide baffle 4 and preventing it from deviating during the movement.

[0031] Working principle of a chemical wastewater heavy metal reduction treatment device:

[0032] In practical use, the flow guide baffle 4 is first installed inside the treatment tank 3, and its position is adjusted as needed. The flow guide baffle 4 divides the interior of the treatment tank 3 into two areas, left and right. The left area is mainly used for preliminary treatment, such as adding treatment agents like reducing agents to carry out the reduction reaction of heavy metal ions; the right area is used for further treatment. When adjusting the position of the flow guide baffle 4, the drive motor 16 is first started, which drives the threaded screw 18 to rotate, which in turn drives the slider on the threaded screw 18 to rotate, thereby moving the flow guide baffle 4 to adjust its position.

[0033] Open the inlet valve 2 to introduce wastewater into the left side of treatment tank 3. Simultaneously, add an appropriate amount of treatment agent, such as a reducing agent, to the wastewater through the dosing pipe 1. Start the stirring motor 8 to rotate the agitator 5, promoting thorough mixing and reaction between the wastewater and the treatment agent. Adjust the stirring speed and time as needed. The wastewater flows into the right-side area through the overflow port 20 on the baffle 4, where it is simultaneously intercepted by the filter screen 21. Further treatment is carried out in the right-side area of ​​treatment tank 3. After treatment meets the requirements, open the outlet valve 7 to discharge the wastewater.

[0034] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A heavy metal reduction treatment device for chemical wastewater, comprising a treatment tank (3), characterized in that: The treatment tank (3) is equipped with a movable and adjustable baffle (4) in the middle position. The baffle (4) is inclined. An overflow port (20) is opened at the upper end of the inclined surface of the baffle (4). A filter screen (21) is installed inside the overflow port (20). A rubber pad (23) is surrounded at the edge of the baffle (4). An inlet pipe (2) is provided on the left side of the treatment tank (3). A dosing pipe (1) is provided next to the inlet pipe (2). An outlet pipe (7) is provided on the right side of the treatment tank (3). Two sets of fixed frames (6) are symmetrically fixed on the left and right sides of the upper end of the treatment tank (3). A stirring motor (8) is installed on each set of fixed frames (6). A stirrer (5) is installed on the output end of the stirring motor (8).

2. The heavy metal reduction treatment device for chemical wastewater according to claim 1, characterized in that: A sealing airbag (24) is fixedly provided on the outside of the rubber pad (23). An air pump (10) is fixedly installed on the upper surface of the flow guide baffle (4). A sealing air nozzle is installed at one end of the sealing airbag (24), and the sealing air nozzle is connected to the air pump (10) through an air pipe (11).

3. The heavy metal reduction treatment device for chemical wastewater according to claim 1, characterized in that: The flow guide baffle (4) is fixedly provided with a frame-type support frame (19) on the right side. Four sets of casters (22) are symmetrically installed at the bottom of the support frame (19), and the casters (22) are in contact with the bottom surface of the treatment pool (3).

4. The heavy metal reduction treatment device for chemical wastewater according to claim 1, characterized in that: The treatment pool (3) is provided with a base plate (13) on both the front and rear sides. A threaded screw (18) is installed on the rear base plate (13). One end of the threaded screw (18) is connected to the drive motor (16). The threaded screw (18) is threaded and fitted with a threaded slider (17). A first connecting plate (9) is fixedly provided on the rear side of the upper end face of the flow guide baffle (4). The first connecting plate (9) is fixedly connected to the threaded slider (17).

5. The heavy metal reduction treatment device for chemical wastewater according to claim 4, characterized in that: A guide rail (14) is fixedly mounted on the bottom plate (13) on the front side, and a movable slide (15) is mounted on the guide rail (14). A second connecting plate (12) is fixedly mounted on the front side of the upper end of the flow guide baffle (4), and the second connecting plate (12) is fixedly connected to the slide (15).

Images