Automatic dosing device for chemical sewage treatment

Abstract

The invention discloses an automatic chemical feeding device for chemical sewage treatment, which comprises a vertical frame, the top of the inner wall of the vertical frame is connected with a treatment box, the upper and lower ends of the treatment box are opened, the outer wall of the vertical frame is connected with a guide vertical seat, a gland is arranged above the treatment box, the top of the gland is connected with a chemical liquid box, and the center of the gland is rotatably connected with a hollow pipe; a butt joint shell is arranged below the treatment box, the lower end of the butt joint shell is communicated with a drainage pipe, a first electromagnetic valve is installed in the drainage pipe, the upper portion of the box wall of the treatment box is communicated with a water inlet pipe, a second electromagnetic valve is installed in the water inlet pipe, and a liquid level sensor is installed on the inner wall of the treatment box; the device is reasonable in structural design, integrates automatic control, efficient mixing and self-cleaning actions, ensures uniform and efficient diffusion of liquid medicine, improves the sewage treatment effect, guarantees the stability of a filtering link, and also gives consideration to the maintenance convenience.

Description

Technical Field

[0001] This invention relates to the field of chemical wastewater treatment equipment, and in particular to an automatic dosing device for chemical wastewater treatment. Background Technology

[0002] In chemical production processes, large quantities of wastewater containing complex pollutants are generated. If discharged directly without effective treatment, it will cause serious damage to the ecological environment. Wastewater treatment has become a key link in the sustainable development of the chemical industry, and chemical treatment, as an important part of this process, directly affects the treatment effect. By adding flocculants to wastewater for pollution removal, the flocculants aggregate impurities and natural colloids in the wastewater into large flocs that settle or float, thus purifying the wastewater.

[0003] Traditional chemical wastewater treatment dosing methods have many drawbacks, severely restricting the improvement of wastewater treatment efficiency and quality. Manual dosing relies on operator experience, which is not only labor-intensive but also prone to chemical waste and increased costs. While some existing dosing devices can achieve a certain degree of automation, they have deficiencies in dosing uniformity and mixing effects, resulting in slow chemical diffusion in wastewater and localized excessively high or low concentrations, affecting the overall wastewater treatment effect. Therefore, developing an automated chemical wastewater dosing device that can overcome these problems is of significant practical importance for improving chemical wastewater treatment efficiency, reducing costs, and protecting the environment. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic dosing device for chemical wastewater treatment, so as to overcome the technical problems existing in the prior art.

[0005] To achieve the above-mentioned technical objectives and effects, the present invention provides the following technical solution:

[0006] An automatic dosing device for chemical wastewater treatment includes a frame, a treatment tank connected to the top of the inner wall of the frame, the treatment tank having openings at both the top and bottom, a guide seat connected to the outer wall of the frame, a pressure cap on the top of the treatment tank, a chemical tank connected to the top of the pressure cap, a hollow tube rotatably connected to the center of the pressure cap, a steering frame connected to the lower part of the outer wall of the hollow tube, a dosing component installed inside the steering frame, a docking shell at the bottom of the treatment tank, a drain pipe connected to the lower end of the docking shell, a solenoid valve installed inside the drain pipe, a water inlet pipe connected to the upper part of the tank wall of the treatment tank, a solenoid valve installed inside the water inlet pipe, a liquid level sensor installed on the inner wall of the treatment tank, and a timer and a PLC controller installed on the outer wall of the frame.

[0007] Preferably, in an automatic dosing device for chemical wastewater treatment, a limiting groove is provided at one end of the guide vertical seat near the treatment tank. A vertical screw is rotatably connected in the limiting groove. The upper and lower sections of the vertical screw have opposite thread directions. A bevel gear ring is connected to the middle of the outer wall of the vertical screw. A drive motor is connected to the middle of the outer wall of the guide vertical seat. A bevel gear is connected to the output end of the drive motor. The bevel gear meshes with the bevel gear ring. Nut seats are symmetrically screwed to the upper and lower outer walls of the vertical screw. A fixing rod is connected between the upper nut seat and the pressure cap. A fixing rod is rotatably connected to the lower nut seat. A docking shell is fixed to the end of the fixing rod. A torsion spring is sleeved on the outside of the fixing rod. The two ends of the torsion spring are fixed to the nut seat and the docking shell, respectively.

[0008] Preferably, in an automatic dosing device for chemical wastewater treatment, a fixed arm is connected to the outer wall of the treatment tank, a vertical rack is connected to the lower part of the outer wall of the fixed arm, a flipping shaft is connected to the outer wall of the docking shell, a mating gear is connected to the end of the flipping shaft, the vertical rack is located on the travel path of the mating gear, and the flipping shaft and the fixed rod are arranged with their centers aligned on the same axis.

[0009] Preferably, in an automatic dosing device for chemical wastewater treatment, a suction cylinder is connected to the top of the liquid tank, a hydraulic rod is connected to the top of the suction cylinder, an inverted U-shaped rod is connected to the top of the hydraulic rod, a piston block is slidably connected inside the suction cylinder, the vertical end of the U-shaped rod is fixed to the upper surface of the piston block, a guide hole is provided at the top of the suction cylinder for the U-shaped rod to pass through, a suction pipe is connected to the bottom wall of the suction cylinder, the lower end of the suction pipe extends into the bottom of the liquid tank, a delivery pipe is connected to the bottom of the side wall of the suction cylinder, the lower end of the delivery pipe passes through a hollow tube, and a one-way valve is installed in both the suction pipe and the delivery pipe, with the two one-way valves arranged in opposite directions.

[0010] Preferably, in an automatic dosing device for chemical wastewater treatment, the dosing assembly includes a translation seat, a sliding sleeve connected to the front end of the translation seat, a horizontal sliding rod movably inserted into the sliding sleeve, the end of the horizontal sliding rod being fixed to the inner wall of a bogie, a nut seat two connected to the rear end of the translation seat, a bidirectional reciprocating screw internally threaded into the nut seat two, the bidirectional reciprocating screw being rotatably connected to the bogie via bearings, a vertical shaft rotatably connected to the center of the translation seat, a dosing channel being formed in the vertical shaft, and the outer wall of the vertical shaft being connected to... The device has multiple blades, and the openings of the drug delivery channels are staggered from the blades. A bevel gear ring is connected to the upper part of the outer wall of the vertical shaft. A side support is connected to the top front side of the translation seat. A drive shaft is rotatably connected to the side support. A bevel gear ring is connected to the rear end of the drive shaft. The bevel gear ring meshes with the rear end of the drive shaft. A spur gear is connected to the front end of the drive shaft. A clearance opening is provided at the upper end of the sliding sleeve. A transverse tooth groove is provided at the upper end of the horizontal sliding rod. One end of the spur gear that extends into the clearance opening meshes with the transverse tooth groove.

[0011] Preferably, in an automatic dosing device for chemical wastewater treatment, a lead screw motor is connected to the outer wall of the bogie, the output end of the lead screw motor is fixedly connected to the end of a bidirectional reciprocating lead screw, an upper fixed pipe frame is connected to the top of the inner wall of the bogie, an upper connector pipe is connected to the horizontal part of the upper fixed pipe frame, a sealed bearing is installed between the inner wall of the upper connector pipe and the liquid delivery pipe, a flow guide hose is connected to the lower end of the upper connector pipe, a lower connector pipe is connected to the lower end of the flow guide hose, a lower fixed pipe frame is connected to the outer wall of the lower connector pipe, a translation seat is fixedly connected to the end of the lower fixed pipe frame, a sealed bearing is installed between the lower end of the lower connector pipe and the inner wall of the drug delivery channel, a steering motor is connected to the top of the pressure cap, a half-bevel gear is connected to the output end of the steering motor, and two symmetrically arranged bevel gear rings are connected to the outer wall of the hollow tube, the half-bevel gear periodically meshes with the upper and lower bevel gear rings.

[0012] Preferably, in an automatic dosing device for chemical wastewater treatment, a sealing ring is connected to the upper end of the docking shell, four support shells are circumferentially connected to the upper part of the inner wall of the docking shell, a filter disc is abutted against the top of the support shell, a flow guide plate is fixedly connected to the inner wall of the docking shell, a baffle is abutted against the top of the flow guide plate, four vertical rods are circumferentially connected to the top of the baffle, a metal block is connected to one end of the vertical rod extending into the support shell, a tension spring is connected between the metal block and the bottom wall of the support shell, and an electromagnet is installed at the top of the inner cavity of the support shell.

[0013] Preferably, in an automatic dosing device for chemical wastewater treatment, the diversion plate has multiple strip grooves symmetrically arranged on its left and right sides, the baffle has multiple weight reduction ports, the weight reduction ports are staggered from the strip grooves, the bottom left and right sides of the diversion plate are connected to diversion buckets, and the lower opening of the strip groove is located inside the upper opening of the diversion bucket.

[0014] Preferably, in an automatic dosing device for chemical wastewater treatment, the bottom wall of the diversion plate is symmetrically connected with inclined support rods at the front and back. The lower ends of the two inclined support rods are connected to an arc-shaped cover. The left and right ends of the arc-shaped cover are rotatably connected to rotating shafts. A worm gear is connected between the two rotating shafts. An impeller is connected to the outer wall of the rotating shaft. The impeller is located below the lower opening of the diversion hopper. A central shaft is rotatably connected to the center of the diversion plate. A scraper is installed at the upper end of the central shaft. The scraper abuts against the upper surface of the filter disc. A worm wheel is connected to the lower end of the central shaft. The worm wheel meshes with the worm gear.

[0015] Preferably, in an automatic dosing device for chemical wastewater treatment, the filter disc has four circumferentially oriented positioning grooves, a guide strip is connected to the top of the support shell, the guide strip extends into the positioning grooves, a through hole is formed in the center of the filter disc, a sealed bearing is installed between the central shaft and the through hole, a screw portion is provided at the upper end of the central shaft, an assembly hole is formed at the end of the scraper, and a fastening nut is installed at the end of the threaded portion passing through the assembly hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The present invention has a reasonable structural design, which can achieve efficient mixing of medicine and liquid. After the hydraulic rod works, the piston block reciprocates in the liquid extraction cylinder. Combined with the one-way valve, the medicine and liquid can be stably delivered. The bogie can be reciprocated and turned by the periodic meshing of the half bevel gear and the bevel gear ring three. After the bidirectional reciprocating screw rotates, the translation seat moves left and right, effectively expanding the dosing coverage area. When the translation seat moves, the vertical shaft can rotate. The blade pushes the medicine and liquid discharged from the dosing channel, which can make the medicine and liquid diffuse and mix efficiently in the sewage, and improve the sewage treatment effect.

[0018] 2. This invention can effectively filter sewage and achieve self-cleaning and anti-clogging. It uses a filter disc to effectively filter flocculated impurities. After the dosing and sedimentation are completed, an electromagnet is energized to attract a metal block, causing the baffle to move upward. The filtered water falls through the strip groove and the diversion bucket to impact the impeller, causing the worm to rotate and mesh with the transmission worm wheel. The central shaft can drive the scraper to rotate and clean the surface of the filter disc, avoiding filter residue clogging, ensuring the continuous and stable operation of the filtration process, and improving the continuity of the overall sewage treatment.

[0019] 3. This invention offers high convenience for maintenance and repair. After the vertical screw rotates, the two nut seats move relative to each other, allowing for flexible adjustment of the distance between the pressure cap and the docking shell. During maintenance, the increased distance allows the drug delivery component to extend out of the processing box. As the docking shell descends, the engagement of the gear and the vertical rack enables it to flip over, facilitating component cleaning and replacement. Simultaneously, the filter disc engages with the guide strip of the support shell via the positioning groove, and the scraper is installed via the screw and the fastening nut, making replacement convenient and significantly reducing maintenance difficulty.

[0020] In summary, this device integrates automated control, efficient mixing, and self-cleaning, ensuring uniform and efficient diffusion of the chemical solution, improving wastewater treatment efficiency, guaranteeing the stability of the filtration process, and taking into account ease of maintenance, thus possessing high practical value. Attached Figure Description

[0021] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the pressure cap structure in this invention;

[0025] Figure 4 This is a cross-sectional view of the processing box in this invention;

[0026] Figure 5 This is a schematic diagram of the external structure of the docking shell in this invention;

[0027] Figure 6 This is a schematic diagram of the internal structure of the guide vertical seat in this invention;

[0028] Figure 7 This is a schematic diagram of the bogie structure in this invention;

[0029] Figure 8 This is a schematic diagram of the translation seat in this invention;

[0030] Figure 9 This is a schematic diagram of the internal structure of the vertical shaft in this invention;

[0031] Figure 10 This is a schematic diagram of the internal structure of the docking shell in this invention;

[0032] Figure 11 This is a schematic diagram of the internal structure of the support shell in this invention;

[0033] Figure 12 This is a schematic diagram of the baffle structure in this invention;

[0034] Figure 13 This is a schematic diagram of the drainage plate in this invention;

[0035] Figure 14 This is a schematic diagram of the arc-shaped cover in this invention;

[0036] Figure 15 This is a schematic diagram of the filter disc structure in this invention;

[0037] Figure 16 This is a schematic diagram of the central shaft in this invention;

[0038] Figure 17 This is a schematic diagram of the scraper structure in this invention.

[0039] In the diagram: 1. Stand; 2. Processing box; 3. Guide pillar; 4. Cover; 5. Medicine tank; 6. Hollow tube; 7. Bogie; 8. Drug delivery assembly; 9. Docking shell; 10. Drain pipe; 11. Solenoid valve one; 12. Water inlet pipe; 13. Solenoid valve two; 14. Liquid level sensor; 15. Timer; 16. PLC controller;

[0040] 201. Fixed arm; 202. Vertical rack; 203. Tilting shaft; 204. Matching gear;

[0041] 301. Limiting groove; 302. Vertical screw; 303. Bevel gear ring one; 304. Drive motor; 305. Bevel gear one; 306. Nut seat one; 307. Fixing rod one; 308. Fixing rod two; 309. Torsion spring;

[0042] 401. Steering motor; 402. Half-bevel gear;

[0043] 501. Liquid suction cylinder; 502. Hydraulic rod; 503. U-shaped rod; 504. Piston block; 505. Liquid suction pipe; 506. Liquid delivery pipe; 507. Check valve;

[0044] 601. Bevel gear ring three;

[0045] 701. Screw motor; 702. Upper fixed pipe support; 703. Upper connector pipe; 704. Sealed bearing one; 705. Flow guide hose; 706. Lower connector pipe; 707. Lower fixed pipe support; 708. Sealed bearing two;

[0046] 801. Translation seat; 802. Sliding sleeve; 803. Horizontal slide rod; 804. Nut seat II; 805. Bidirectional reciprocating screw; 806. Vertical shaft; 807. Drug delivery channel; 808. Blade; 809. Bevel gear ring II; 810. Side support; 811. Drive shaft; 812. Bevel gear II; 813. Spur gear; 814. Clearance opening; 815. Transverse tooth groove;

[0047] 901. Support shell; 902. Filter plate; 903. Drainage plate; 904. Baffle; 905. Vertical rod; 906. Metal block; 907. Tension spring; 908. Electromagnet;

[0048] 911. Guide bar;

[0049] 921. Positioning groove; 922. Through hole; 923. Sealed bearing three;

[0050] 930. Worm gear; 931. Slotted groove; 932. Diversion bucket; 933. Inclined support rod; 934. Arc-shaped cover; 935. Rotating shaft; 936. Worm; 937. Impeller; 938. Central shaft; 939. Scraper;

[0051] 941. Weight loss. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] Example 1

[0054] Please see Figure 1-17 As shown, this embodiment is an automatic dosing device for chemical wastewater treatment, including a frame 1. A treatment tank 2 is connected to the top of the inner wall of the frame 1. The treatment tank 2 has openings at both the top and bottom. A guide seat 3 is connected to the outer wall of the frame 1. A pressure cover 4 is provided above the treatment tank 2. A liquid tank 5 is connected to the top of the pressure cover 4. A hollow tube 6 is rotatably connected to the center of the pressure cover 4. A bogie 7 is connected to the lower part of the outer wall of the hollow tube 6. A dosing component 8 is installed inside the bogie 7. A docking shell 9 is provided below the treatment tank 2. A drain pipe 10 is connected to the lower end of the docking shell 9. A solenoid valve 11 is installed inside the drain pipe 10. A water inlet pipe 12 is connected to the upper part of the tank wall of the treatment tank 2. A solenoid valve 13 is installed inside the water inlet pipe 12. A liquid level sensor 14 is installed on the inner wall of the treatment tank 2. A timer 15 and a PLC controller 16 are installed on the outer wall of the frame 1.

[0055] A limiting groove 301 is provided at one end of the guide vertical seat 3 near the processing box 2. A vertical screw 302 is rotatably connected in the limiting groove 301. The upper and lower sections of the vertical screw 302 have opposite thread directions. A bevel gear ring 303 is connected to the middle of the outer wall of the vertical screw 302. A drive motor 304 is connected to the middle of the outer wall of the guide vertical seat 3. A bevel gear 305 is connected to the output end of the drive motor 304. The bevel gear 305 meshes with the bevel gear ring 303. Nut seats 306 are symmetrically screwed onto the upper and lower outer walls of the vertical screw 302. A fixing rod 307 is connected between the first nut seat 306 and the pressure cover 4. A fixing rod 308 is rotatably connected to the outer wall of the lower nut seat 306. The end of the fixing rod 308 is fixed to the docking shell 9. The distance between the two nut seats 306 is adjustable, which makes it easy to control the position of the pressure cover 4 and the docking shell 9. A torsion spring 309 is sleeved on the outside of the fixing rod 308. The two ends of the torsion spring 309 are fixed to the nut seat 306 and the docking shell 9 respectively, so that when the mating gear 204 is disengaged from the vertical rack 202, the opening of the docking shell 9 remains upward, which facilitates the opening of the lower end of the docking processing box 2.

[0056] The outer wall of the processing box 2 is connected to a fixed arm 201, the lower part of the outer wall of the fixed arm 201 is connected to a vertical rack 202, the outer wall of the docking shell 9 is connected to a flipping shaft 203, the end of the flipping shaft 203 is connected to a mating gear 204, the vertical rack 202 is located on the travel path of the mating gear 204, and the flipping shaft 203 and the fixed rod 2 308 are coaxially arranged.

[0057] The specific implementation method of this embodiment is as follows:

[0058] When in use, this device is powered by an external power source and uses a PLC controller 16 to control the operation of each electrical component. The drive motor 304 drives the bevel gear 305 to rotate in both directions. The bevel gear 305 meshes with the transmission bevel gear ring 303, so that after the vertical screw 302 rotates, the two nut seats 306 can move closer or further away from each other along the limiting groove 301, thereby adjusting the distance between the pressure cap 4 and the docking shell 9. When maintenance is performed, the distance between the pressure cap 4 and the docking shell 9 increases, the drug delivery component 8 extends out of the processing box 2, and the flip shaft 203 descends synchronously with the docking shell 9. After the gear 204 moves down, it meshes with the vertical rack 202 at the bottom of the fixing arm 201, thereby causing the docking shell 9 to flip around the flip shaft 203, which facilitates the cleaning and replacement of components.

[0059] When treating sewage, the distance between the two nut seats 306 is minimized. The upper and lower ends of the treatment tank 2 are respectively connected to the pressure cap 4 and the connecting shell 9. After power is turned on, the solenoid valve 11 is closed and the solenoid valve 213 is opened. Sewage can enter the treatment tank 2 along the inlet pipe 12. The liquid level is monitored in real time by the liquid level sensor 14. When the liquid level in the treatment tank 2 reaches the high level set by the liquid level sensor 14, a feedback signal is sent to the PLC controller 16, which then controls the solenoid valve 213 to close to stop the water intake and perform the dosing action.

[0060] Example 2

[0061] Based on Embodiment 1, a liquid extraction cylinder 501 is connected to the top of the liquid tank 5, a hydraulic rod 502 is connected to the top of the liquid extraction cylinder 501, an inverted U-shaped rod 503 is connected to the top of the hydraulic rod 502, a piston block 504 is slidably connected inside the liquid extraction cylinder 501, the vertical end of the U-shaped rod 503 is fixed to the upper surface of the piston block 504, a guide hole is opened at the top of the liquid extraction cylinder 501 for the U-shaped rod 503 to pass through, a liquid extraction pipe 505 is connected to the bottom wall of the liquid extraction cylinder 501, the lower end of the liquid extraction pipe 505 extends into the bottom of the inner cavity of the liquid tank 5, a liquid delivery pipe 506 is connected to the bottom of the side wall of the liquid extraction cylinder 501, the lower end of the liquid delivery pipe 506 passes through the hollow tube 6, and a one-way valve 507 is installed in both the liquid extraction pipe 505 and the liquid delivery pipe 506, with the two one-way valves 507 arranged in opposite directions.

[0062] The drug delivery assembly 8 includes a translation seat 801, with a sliding sleeve 802 connected to its front end. A horizontal slide rod 803 is movably inserted into the sliding sleeve 802, and its end is fixed to the inner wall of the bogie 7. A nut seat 2 804 is connected to the rear end of the translation seat 801, with a bidirectional reciprocating screw 805 threaded into the nut seat 2 804. The bidirectional reciprocating screw 805 is rotatably connected to the bogie 7 via bearings. A vertical shaft 806 is rotatably connected to the center of the translation seat 801, and a drug delivery channel 807 is opened in the vertical shaft 806. Multiple blades 808 are connected to the outer wall of the vertical shaft 806. The opening of the drug delivery channel 807... The blades 808 are staggered at the opening position. A bevel gear ring 809 is connected to the upper part of the outer wall of the vertical shaft 806. A side support 810 is connected to the top front side of the translation seat 801. A drive shaft 811 is rotatably connected in the side support 810. A bevel gear 812 is connected to the rear end of the drive shaft 811. The bevel gear 812 meshes with the bevel gear ring 809. A spur gear 813 is connected to the front end of the drive shaft 811. A clearance opening 814 is opened at the upper end of the sliding sleeve 802. A transverse tooth groove 815 is opened at the upper end of the horizontal slide rod 803. One end of the spur gear 813 extends into the clearance opening 814 and meshes with the transverse tooth groove 815.

[0063] A lead screw motor 701 is connected to the outer wall of the bogie 7. The output end of the lead screw motor 701 is fixed to the end of a bidirectional reciprocating lead screw 805. An upper fixed pipe bracket 702 is connected to the top of the inner wall of the bogie 7. An upper connector pipe 703 is connected to the horizontal part of the upper fixed pipe bracket 702. A sealed bearing 704 is installed between the inner wall of the upper connector pipe 703 and the liquid delivery pipe 506. A flow guide hose 705 is connected to the lower end of the upper connector pipe 703. A lower connector pipe 706 is connected to the lower end of the flow guide hose 705. The outer wall of the connector tube 706 is connected to a lower fixed tube frame 707. The end of the lower fixed tube frame 707 is fixedly connected to a translation seat 801. A sealed bearing 708 is installed between the lower end of the lower connector tube 706 and the inner wall of the drug delivery channel 807. The top of the pressure cap 4 is connected to a steering motor 401. The output end of the steering motor 401 is connected to a half bevel gear 402. The outer wall of the hollow tube 6 is connected to two symmetrically arranged bevel gear rings 601. The half bevel gear 402 periodically meshes with the bevel gear rings 601 on the upper and lower sides.

[0064] The specific implementation method of this embodiment is as follows:

[0065] In this embodiment, after the wastewater is injected into the treatment tank 2, chemical treatment is performed. When the liquid level reaches the high level set by the liquid level sensor 14, the hydraulic rod 502 works. The horizontal part of the U-shaped rod 503 rises and falls with the hydraulic rod 502, and the vertical end of the U-shaped rod 503 drives the piston block 504 to reciprocate in the suction cylinder 501. The flow direction of the chemical solution is controlled by the one-way valve 507. When the piston block 504 moves upward, the flocculant solution in the chemical tank 5 enters the suction cylinder 501 along the suction pipe 505. When the piston block 504 moves downward, the flocculant solution in the suction cylinder 501 is discharged through the delivery pipe 506. The chemical solution is introduced into the treatment tank 2 through the delivery pipe 506, the upper connector pipe 703, the guide hose 705, the lower connector pipe 706, and the drug administration channel 807, thereby treating the wastewater.

[0066] During the dosing process, the steering motor 401 and the lead screw motor 701 are activated. The half bevel gear 402 at the end of the steering motor 401 periodically meshes with the two bevel gear rings 601 on the hollow tube 6, causing the hollow tube 6 to drive the bogie to reciprocate. The lead screw motor 701 drives the bidirectional reciprocating lead screw 805 to rotate. The nut seat 804, which is screwed to the bidirectional reciprocating lead screw 805, drives the translation seat 801 to move left and right along the horizontal slide bar, further improving the dosing coverage. When the translation seat 801 moves, the spur gear 813 at the front end of the drive shaft 811 meshes with the transverse tooth groove 815 of the horizontal slide bar 803. After the drive shaft 811 rotates, the bevel gear 812 meshes with the bevel gear ring 809, which enables the vertical shaft 806 to rotate. After the liquid is discharged from the outlet of the dosing channel 807, the blade 808 pushes it, which enables the liquid to spread rapidly in the sewage.

[0067] Example 3

[0068] Based on Embodiment 2, a sealing ring is connected to the upper end of the docking shell 9, four support shells 901 are circumferentially connected to the upper part of the inner wall of the docking shell 9, a filter plate 902 is abutted to the top of the support shell 901, a flow guide plate 903 is fixedly connected to the inner wall of the docking shell 9, a baffle 904 is abutted to the top of the flow guide plate 903, four vertical rods 905 are circumferentially connected to the top of the baffle 904, a metal block 906 is connected to one end of the vertical rod 905 that extends into the support shell 901, a tension spring 907 is connected between the metal block 906 and the bottom wall of the support shell 901, and an electromagnet 908 is installed at the top of the inner cavity of the support shell 901.

[0069] The diversion plate 903 has multiple strip grooves 931 symmetrically opened on the left and right sides to facilitate water outflow. The baffle 904 has multiple weight-reducing ports 941 to reduce the moving resistance of the baffle 904. The weight-reducing ports 941 are staggered from the strip grooves 931. The bottom left and right sides of the diversion plate 903 are connected to the diversion buckets 932. The lower opening of the strip grooves 931 is located inside the upper opening of the diversion buckets 932.

[0070] The bottom wall of the diversion plate 903 is symmetrically connected with inclined support rods 933. The lower ends of the two inclined support rods 933 are connected to an arc-shaped cover 934. The left and right ends of the arc-shaped cover 934 are rotatably connected to a rotating shaft 935. A worm gear 936 is connected between the two rotating shafts 935. An impeller 937 is connected to the outer wall of the rotating shaft 935. The impeller 937 is located below the lower opening of the diversion bucket 932. A central shaft 938 is rotatably connected to the center of the diversion plate 903. A scraper 939 is installed at the upper end of the central shaft 938. The scraper 939 abuts against the upper surface of the filter disc 902. A worm wheel 930 is connected to the lower end of the central shaft 938. The worm wheel 930 meshes with the worm gear 936. Mechanical transmission is achieved by the water impacting the impeller 937, which enables the scraper 939 to clean the surface of the filter disc 902.

[0071] The filter disc 902 has four positioning grooves 921 circumferentially. The top of the support shell 901 is connected to a guide bar 911, which extends into the positioning grooves 921 to ensure the structural stability of the filter disc 902. The filter disc 902 has a through hole 922 in the center. A sealed bearing 923 is installed between the central shaft 938 and the through hole 922. The upper end of the central shaft 938 has a screw part. The scraper 939 has an assembly hole at its end. A fastening nut is installed at the end of the threaded part that passes through the assembly hole, which facilitates the replacement and maintenance of the scraper 939.

[0072] The specific implementation method of this embodiment is as follows:

[0073] In this embodiment, after the dosing is completed, the sedimentation and filtration stage begins. Timer 15 is used to keep track of the time. After the set time period is reached, timer 15 sends a signal to PLC controller 16, which controls the opening of solenoid valve 11 and energizes electromagnet 908. Flocculated impurities are filtered through filter disc 902. Electromagnet 908 attracts metal block 906, causing vertical rod 905 to move baffle 904 upward. The obstruction effect of baffle 904 on strip groove 931 is eliminated. Water filtered by filter disc 902 falls into diversion bucket 932 along strip groove 931. After the water is collected by diversion bucket 932, it falls and impacts impeller 937, driving rotating shaft 935 and worm gear 936 to rotate. This drives transmission worm gear 936, causing central shaft 938 to drive scraper 939 to rotate, which can clean the surface of filter disc 902 and prevent filter residue from clogging. After the water is drained through drain pipe 10, it is re-injected into treatment tank 2 for the next treatment cycle.

[0074] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic dosing device for chemical wastewater treatment, comprising a frame (1), characterized in that: The top of the inner wall of the stand (1) is connected to a processing box (2), which has openings at both the top and bottom. The outer wall of the stand (1) is connected to a guide seat (3). A pressure cap (4) is provided above the processing box (2). A medicine tank (5) is connected to the top of the pressure cap (4). A hollow tube (6) is rotatably connected to the center of the pressure cap (4). A bogie (7) is connected to the lower part of the outer wall of the hollow tube (6). A drug delivery assembly (8) is installed inside the bogie (7). The processing box (2) is provided with a docking shell (9) at the bottom. The lower end of the docking shell (9) is connected to a drain pipe (10). A solenoid valve (11) is installed in the drain pipe (10). A water inlet pipe (12) is connected to the upper part of the box wall of the processing box (2). A solenoid valve (13) is installed in the water inlet pipe (12). A liquid level sensor (14) is installed on the inner wall of the processing box (2). A timer (15) and a PLC controller (16) are installed on the outer wall of the stand (1).

2. The automatic dosing device for chemical wastewater treatment according to claim 1, characterized in that: The guide vertical seat (3) has a limiting groove (301) at one end near the processing box (2). A vertical screw (302) is rotatably connected in the limiting groove (301). The upper and lower sections of the vertical screw (302) have opposite thread directions. A bevel gear ring (303) is connected to the middle of the outer wall of the vertical screw (302). A drive motor (304) is connected to the middle of the outer wall of the guide vertical seat (3). A bevel gear (305) is connected to the output end of the drive motor (304). The bevel gear (305) meshes with the bevel gear. In ring 1 (303), the outer wall of the vertical screw (302) is symmetrically screwed with nut seat 1 (306). The upper nut seat 1 (306) is connected to the pressure cap (4) with fixing rod 1 (307). The outer wall of the lower nut seat 1 (306) is rotatably connected with fixing rod 2 (308). The end of fixing rod 2 (308) is fixedly connected to docking shell (9). The outside of fixing rod 2 (308) is fitted with torsion spring (309). The two ends of torsion spring (309) are respectively fixed to nut seat 1 (306) and docking shell (9).

3. The automatic dosing device for chemical wastewater treatment according to claim 2, characterized in that: The outer wall of the processing box (2) is connected to a fixed arm (201), the lower part of the outer wall of the fixed arm (201) is connected to a vertical rack (202), the outer wall of the docking shell (9) is connected to a flipping shaft (203), the end of the flipping shaft (203) is connected to a mating gear (204), the vertical rack (202) is located on the travel path of the mating gear (204), and the flipping shaft (203) and the fixed rod (308) are arranged coaxially.

4. The automatic dosing device for chemical wastewater treatment according to claim 1, characterized in that: The top of the liquid tank (5) is connected to a liquid extraction cylinder (501), the top of the liquid extraction cylinder (501) is connected to a hydraulic rod (502), the top of the hydraulic rod (502) is connected to an inverted U-shaped rod (503), a piston block (504) is slidably connected inside the liquid extraction cylinder (501), the vertical end of the U-shaped rod (503) is fixed to the upper surface of the piston block (504), and the top of the liquid extraction cylinder (501) has an opening for the U-shaped rod (503) to pass through. The bottom wall of the liquid extraction cylinder (501) is connected to the guide hole, and the liquid extraction pipe (505) is connected to the bottom wall of the liquid extraction cylinder (5). The lower end of the liquid extraction pipe (505) extends into the bottom of the inner cavity of the liquid tank (5). The bottom of the side wall of the liquid extraction cylinder (501) is connected to the liquid delivery pipe (506). The lower end of the liquid delivery pipe (506) passes through the hollow tube (6). Both the liquid extraction pipe (505) and the liquid delivery pipe (506) are equipped with one-way valves (507), and the two one-way valves (507) are arranged in opposite directions.

5. The automatic dosing device for chemical wastewater treatment according to claim 4, characterized in that: The drug delivery assembly (8) includes a translation seat (801), a sliding sleeve (802) connected to the front end of the translation seat (801), a horizontal sliding rod (803) movably inserted into the sliding sleeve (802), the end of the horizontal sliding rod (803) being fixed to the inner wall of the bogie (7), a nut seat two (804) connected to the rear end of the translation seat (801), a bidirectional reciprocating screw (805) threaded into the nut seat two (804), the bidirectional reciprocating screw (805) being rotatably connected to the bogie (7) via bearings, a vertical shaft (806) rotatably connected to the center of the translation seat (801), a drug delivery channel (807) being opened in the vertical shaft (806), and multiple blades (808) connected to the outer wall of the vertical shaft (806). The opening position of the vertical shaft (806) is staggered from the blade (808). A bevel gear ring (809) is connected to the upper part of the outer wall of the vertical shaft (806). A side support (810) is connected to the front top of the translation seat (801). A transmission shaft (811) is rotatably connected in the side support (810). A bevel gear (812) is connected to the rear end of the transmission shaft (811). The bevel gear (812) meshes with the bevel gear ring (809). A spur gear (813) is connected to the front end of the transmission shaft (811). A clearance opening (814) is opened at the upper end of the sliding sleeve (802). A transverse tooth groove (815) is opened at the upper end of the horizontal sliding rod (803). One end of the spur gear (813) that extends into the clearance opening (814) meshes with the transverse tooth groove (815).

6. The automatic dosing device for chemical wastewater treatment according to claim 5, characterized in that: A lead screw motor (701) is connected to the outer wall of the bogie (7). The output end of the lead screw motor (701) is fixed to the end of a bidirectional reciprocating lead screw (805). An upper fixed pipe bracket (702) is connected to the top of the inner wall of the bogie (7). An upper connector pipe (703) is connected to the horizontal part of the upper fixed pipe bracket (702). A sealed bearing (704) is installed between the inner wall of the upper connector pipe (703) and the liquid delivery pipe (506). A flow guide hose (705) is connected to the lower end of the upper connector pipe (703). A lower connector pipe (706) is connected to the lower end of the flow guide hose (705). The lower connector tube (706) is connected to a lower fixed tube frame (707) on its outer wall. The lower fixed tube frame (707) is fixed to a translation seat (801) at its end. A sealed bearing (708) is installed between the lower end of the lower connector tube (706) and the inner wall of the drug delivery channel (807). A steering motor (401) is connected to the top of the pressure cap (4). A half bevel gear (402) is connected to the output end of the steering motor (401). Two symmetrically arranged bevel gear rings (601) are connected to the outer wall of the hollow tube (6). The half bevel gear (402) periodically meshes with the bevel gear rings (601) on the upper and lower sides.

7. The automatic dosing device for chemical wastewater treatment according to claim 1, characterized in that: A sealing ring is connected to the upper end of the docking shell (9). Four support shells (901) are circumferentially connected to the upper part of the inner wall of the docking shell (9). A filter plate (902) is abutted to the top of the support shell (901). A flow guide plate (903) is fixedly connected to the inner wall of the docking shell (9). A baffle (904) is abutted to the top of the flow guide plate (903). Four vertical rods (905) are circumferentially connected to the top of the baffle (904). A metal block (906) is connected to one end of the vertical rod (905) that extends into the support shell (901). A tension spring (907) is connected between the metal block (906) and the bottom wall of the support shell (901). An electromagnet (908) is installed at the top of the inner cavity of the support shell (901).

8. An automatic dosing device for chemical wastewater treatment according to claim 7, characterized in that: The diversion plate (903) has multiple strip grooves (931) symmetrically opened on the left and right sides. The baffle (904) has multiple weight reduction ports (941) opened in it. The weight reduction ports (941) are staggered from the strip grooves (931). The bottom left and right sides of the diversion plate (903) are connected to the diversion buckets (932). The lower opening of the strip grooves (931) is located inside the upper opening of the diversion buckets (932).

9. An automatic dosing device for chemical wastewater treatment according to claim 7, characterized in that: The bottom wall of the diversion plate (903) is symmetrically connected with inclined support rods (933). The lower ends of the two inclined support rods (933) are connected to an arc-shaped cover (934). The left and right ends of the arc-shaped cover (934) are rotatably connected to a rotating shaft (935). A worm gear (936) is connected between the two rotating shafts (935). An impeller (937) is connected to the outer wall of the rotating shaft (935). The impeller (937) is located below the lower opening of the diversion bucket (932). The center of the diversion plate (903) is rotatably connected to a central shaft (938). A scraper (939) is installed at the upper end of the central shaft (938). The scraper (939) abuts against the upper surface of the filter disc (902). The lower end of the central shaft (938) is connected to a worm wheel (930). The worm wheel (930) meshes with the worm gear (936).

10. An automatic dosing device for chemical wastewater treatment according to claim 9, characterized in that: The filter disc (902) has four positioning grooves (921) circumferentially. The top of the support shell (901) is connected to a guide strip (911), which extends into the positioning groove (921). The filter disc (902) has a through hole (922) in the center. A sealed bearing (923) is installed between the central shaft (938) and the through hole (922). The upper end of the central shaft (938) is provided with a screw part. The scraper (939) has an assembly hole at its end. A fastening nut is installed at the end of the threaded part that passes through the assembly hole.

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