High-efficiency chemical dosing equipment for sewage treatment sedimentation tanks and its usage method

Abstract

This invention discloses a high-efficiency chemical application device for wastewater treatment sedimentation tanks and its usage method. The chemical application device includes: a moving unit, a mixing unit, a filtering unit, and a chemical application unit. The moving unit is located at the upper end of the sedimentation tank. The mixing unit is connected to the sedimentation tank and passes through both sides of the sedimentation tank. The filtering unit and the chemical application unit are respectively connected to the sedimentation tank and the moving unit. The filtering unit performs preliminary treatment on the wastewater and removes large particulate impurities, improving the wastewater treatment quality. Secondly, the chemical tank in the chemical application unit is separated from the moving unit and connected only to the moving unit via a chemical application plate, reducing the load on the moving unit. This allows the moving unit to remove impurities filtered by the filtering unit under low load conditions. Simultaneously, the mixing unit ensures rapid and uniform mixing of the chemical solution and wastewater, thereby improving the wastewater treatment quality and practicality of the chemical application device.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and more specifically, relates to a high-efficiency chemical application device for wastewater treatment sedimentation tanks and its application method. Background Technology

[0002] Sedimentation tanks, a crucial component of wastewater treatment, are primarily used to remove suspended solids and some organic matter from wastewater. Utilizing gravity separation, heavier particles (such as sediment and sludge) sink to the bottom, while lighter substances float to the surface, thus purifying the water. Sedimentation tanks are widely used in the treatment of domestic sewage, industrial wastewater, and aquaculture wastewater. Chemical dosing equipment, on the other hand, is an auxiliary device in wastewater treatment. It adds chemical substances, such as coagulants and deodorizers, to the water to help remove pollutants or improve water quality, effectively enhancing the wastewater treatment efficiency of the sedimentation tank.

[0003] In the prior art, Chinese Patent No. CN108609707A discloses a mobile spraying device for sedimentation tanks in domestic sewage treatment, which includes a sedimentation tank, a top plate, a servo motor, a first bearing seat, a lead screw, a nut, a fixing rod, a sliding sleeve, a mounting plate, a spraying box, a screen, a connecting plate, etc.; the sedimentation tank is provided with a top plate above it, and the servo motor is connected to the bottom right side of the top plate.

[0004] Although the mobile spraying equipment of the above patent can effectively and evenly mix the powder with domestic sewage by adding the powder in a mobile manner, and avoid the powder settling at the bottom of the sedimentation tank by continuously rotating the first stirring rod during the movement, it still cannot solve some problems of the existing spraying equipment: (1) When the spraying box is filled with a large amount of liquid medicine and is added in a mobile manner, the spraying mechanism will continuously exert pressure on the moving parts such as the lead screw and motor, which may lead to excessive pressure and damage to the mobile equipment; (2) In order to enhance the spraying effect, the excessive pursuit of device integration further increases the load on the moving parts and reduces the service life of the equipment. At the same time, excessive device integration leads to increased use and maintenance time and labor costs, and may increase the difficulty of later equipment improvement and upgrading. Summary of the Invention

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a high-efficiency chemical application device for wastewater treatment sedimentation tanks and its usage method. The device uses a filtration unit to pre-treat wastewater and remove large particulate impurities, improving wastewater treatment quality. Furthermore, the chemical tank in the application unit is separated from the moving unit and connected only to the moving unit via a chemical application plate. This reduces the load on the moving unit, allowing it to remove impurities filtered by the filtration unit under low load. Simultaneously, the mixing unit ensures rapid and uniform mixing of the chemical solution and wastewater, thereby improving the wastewater treatment quality and practicality of the application device while reducing operational difficulty and maintenance costs.

[0006] To achieve the above objectives, the present invention provides a high-efficiency chemical application device for wastewater treatment sedimentation tanks, comprising: a moving unit, a mixing unit, a filtering unit, and a chemical application unit, wherein:

[0007] The moving unit includes a moving scraping component and a moving spraying component; the moving scraping component includes a support plate, a drive motor, a support frame, a threaded rod, a slide block, and a scraping plate; wherein, the support plate is located at the upper end of the sedimentation tank; the drive motor is located on one side of the support plate; the support frame is located at the upper end of the sedimentation tank and corresponds to the position of the support plate; one end of the threaded rod passes through the support plate and is connected to the output shaft of the drive motor, and the other end is rotatably connected to a crossbeam; the slide block is threadedly connected to the threaded rod; the scraping plate is located at the bottom end of the slide block; the moving spraying component is connected to the moving scraping component via a connecting crossbar;

[0008] The mixing unit includes: a stirring component and a stirring motor; one end of the stirring component is rotatably connected to the sedimentation tank, and the other end is rotatably connected to the sedimentation tank and passes through the sedimentation tank; the stirring component is provided with several stirring blades in the internal area of ​​the sedimentation tank; the stirring motor is located outside the sedimentation tank and one end of its output shaft is connected to the stirring component.

[0009] The filtration unit includes: a filter frame and a drain plate; the filter frame is connected to the sedimentation tank, the support plate and the support frame at both ends respectively, and has an upper opening at one end connected to the support frame; the filter frame is provided with a filter screen that is parallel to and fits against the scraping plate; the drain plate is connected to both sides and the lower side of the opening.

[0010] The spraying unit includes: a medicine tank, a medicine delivery component, and a spraying plate; the medicine tank is located outside the sedimentation tank, and a water pump for delivering medicine is provided on its outside; the medicine delivery component is connected to the medicine tank and the spraying plate respectively; the spraying plate is located at the lower end of the connecting crossbar, and has pipelines inside and several liquid spray nozzles evenly distributed at the bottom end;

[0011] By separating the medicine tank from the mobile unit and connecting it only to the mobile unit via the medicine spraying plate, the load on the mobile unit is reduced, enabling the mobile unit to remove impurities filtered in the filtration unit under low load conditions. At the same time, the mixing unit ensures that the medicine solution and sewage are quickly and evenly mixed.

[0012] Furthermore, the movable scraping component includes a first slide rod, the two ends of which are respectively connected to the support plate and the crossbeam, and are slidably connected to the slide block;

[0013] The threaded rod is parallel to the first slide rod.

[0014] Furthermore, the drive motor, the threaded rod, the first slide rod, and the filter screen are inclined upward as a whole with respect to the support plate;

[0015] The drain plate is inclined downward at its connection with the filter frame.

[0016] Furthermore, the movable spraying component includes: a second support member, a second slide rod, and a slider; wherein, two second support members are respectively disposed on both sides of the upper end of the sedimentation tank; the two ends of the second slide rod are respectively connected to the two second support members; the slider is slidably connected to the second slide rod, and the two ends of the connecting crossbar are respectively the slide seat and the slider;

[0017] The second slide bar is parallel to the first slide bar.

[0018] Furthermore, the drug delivery component includes a drug delivery hose and a drug delivery tube holder; the drug delivery hose is respectively connected to the water pump and the spraying plate;

[0019] The drug delivery tube is mounted on the upper end of the sedimentation tank and includes a third support member, a third slide rod, and a tow bar; two third support members are respectively located on both sides of the upper end of the sedimentation tank; the two ends of the third slide rod are respectively connected to the two third support members; a number of tow bars are slidably connected to the third slide rod and have hose clamps adapted to the drug delivery tube on their lower side;

[0020] The third slide bar is parallel to the second slide bar.

[0021] Furthermore, the support frame mainly consists of two first support members and the crossbeam forming a portal support structure.

[0022] Furthermore, the upper end of the slide is connected to a sewage conveying pipe via a pipe fitting, and a sewage outlet is provided on the front side;

[0023] The pipe fitting is equipped with a remotely controlled solenoid valve.

[0024] Furthermore, a pulley is provided at the end of the stirring component that passes through one end of the sedimentation tank;

[0025] The various stirring components rotate synchronously via a number of pulleys and belts.

[0026] Furthermore, the scraping plate includes comb-shaped, arc-shaped, and flat scraping plates.

[0027] Another aspect of the present invention provides a method for using a high-efficiency chemical application device for a wastewater treatment sedimentation tank, which is implemented using the chemical application device described above, and includes the following steps:

[0028] S1: The filter unit and mixing unit are cleaned with purified water, and the spraying equipment is tested to be working properly. Then, sewage is introduced through the sewage conveying pipe, so that the sewage flowing out of the sewage outlet is pre-treated by the filter screen and falls into the sedimentation tank.

[0029] S2: Start the drive motor and use the scraper to repeatedly remove impurities from the filter screen;

[0030] S3: Start the water pump to pump the liquid medicine in the medicine tank to the liquid medicine nozzle at the bottom of the spraying plate, and evenly spread the liquid medicine into the sedimentation tank by moving the spraying component;

[0031] S4: Start the stirring motor to stir the sewage and medicine in the sedimentation tank through several stirring components to promote the reaction between the medicine and the sewage;

[0032] S5: Replenish or replace the chemicals in the chemical tank according to the sewage treatment volume or other needs;

[0033] S6: After the sewage is stopped being transported, the drive motor and the water pump will continue to operate for half an hour and then stop. The stirring motor will continue to operate for half an hour and then also stop, waiting for the sewage in the sedimentation tank to settle naturally.

[0034] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0035] 1. The spraying device of the present invention performs preliminary treatment of sewage and removes large particulate impurities through the filtration unit, thereby improving the sewage treatment quality. Secondly, the agent tank in the spraying unit is separated from the moving unit and connected to the moving unit only through the spraying plate, reducing the load on the moving unit. This allows the moving unit to remove impurities filtered in the filtration unit under low load. At the same time, the mixing unit enables the chemical solution and sewage to be quickly and evenly mixed, thereby improving the sewage treatment quality and practicality of the spraying device, and reducing the difficulty of operation and maintenance costs.

[0036] 2. The spraying device of the present invention connects the movable scraping component and the movable spraying component through the connecting crossbar, and connects the connecting crossbar to the spraying unit. The drive motor, threaded rod, and slide simultaneously drive the scraping plate and the connecting crossbar to scrape away impurities from the surface of the filter unit, keeping the filter unit clean, thereby improving its working efficiency and extending its service life. Furthermore, the device simultaneously scrapes away impurities and applies pesticides, increasing the mobility and flexibility of the spraying operation, resulting in more uniform spraying, improved sedimentation effect, and further enhancing the overall coordination and automation level of the system.

[0037] 3. The spraying device of the present invention uses a drive motor to drive several stirring components to stir the sewage in the sedimentation tank, so that the agent dissolves quickly and reacts rapidly with the sewage, thereby improving the efficiency and quality of sewage treatment.

[0038] 4. The spraying device of the present invention performs preliminary treatment on the wastewater to be treated through the filter frame, effectively intercepting large particulate solid impurities in the wastewater and reducing the load on subsequent treatment units. At the same time, the moving scraping component scrapes off the impurities on the filter frame and discharges them through the drain plate, avoiding clogging of the filter screen, further increasing the treatment capacity, reducing the frequency and labor intensity of manual cleaning, and enabling the entire system to handle larger wastewater flows and meet larger-scale wastewater treatment needs.

[0039] 5. The spraying device of the present invention, by separating the agent tank from the mobile unit and connecting it to the mobile spraying component through a drug delivery component and a spraying plate, allows the loading and replacement of the pesticide solution to be performed independently of the mobile spraying component, reducing downtime during operation and improving overall work efficiency. Furthermore, the mobile spraying component ensures that the pesticide solution evenly covers the target area, improving the efficiency and effectiveness of pesticide use. Simultaneously, because the agent tank is separated from the mobile unit, the weight that the mobile unit needs to bear during operation is effectively reduced, energy consumption is reduced, the mobility, flexibility, and safety of the mobile unit are improved, the service life of the spraying device is extended, and subsequent maintenance costs are reduced. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the structure of the spraying device according to an embodiment of the present invention;

[0041] Figure 2 This is a cross-sectional view of the spraying device according to an embodiment of the present invention at the connecting crossbar;

[0042] Figure 3 This is a schematic diagram of section A in embodiment A of the present invention;

[0043] Figure 4 This is a top view of the spraying device according to an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the structure of the stirring blade in an embodiment of the present invention;

[0045] Figure 6 This is a schematic diagram of the steps involved in using the spraying device according to an embodiment of the present invention.

[0046] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-sedimentation tank, 2-sewage conveying pipe, 3-moving scraping component, 31-support plate, 32-drive motor, 33-support frame, 331-first support member, 332-crossbeam, 34-threaded rod, 35-first slide rod, 36-slide seat, 361-pipe fitting, 362-sewage outlet, 37-scraper, 4-moving spraying component, 41-second support member, 4 2-Second slide bar, 43-Slider, 44-Connecting crossbar, 5-Stirring component, 51-Pulley, 52-Belt, 53-Stirring blade, 6-Stirring motor, 7-Filter frame, 71-Filter screen, 8-Drain plate, 81-Collection frame, 9-Medicine tank, 91-Water pump, 10-Medicine delivery component, 101-Medicine delivery hose, 102-Medicine tube rack, 102a-Third support component, 102b-Third slide bar, 102c-Trailer, 11-Spreading plate. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0048] like Figures 1 to 5 As shown, one embodiment of the present invention provides a high-efficiency chemical application device for a wastewater treatment sedimentation tank, comprising: a moving unit, a mixing unit, a filtering unit, and a chemical application unit; the moving unit is located at the upper end of the sedimentation tank 1; the mixing unit is connected to the sedimentation tank 1 and passes through both sides of the sedimentation tank 1; the filtering unit and the chemical application unit are respectively connected to the sedimentation tank 1 and the moving unit. In actual use, the filtering unit performs preliminary treatment on the wastewater and removes large particulate impurities, improving the wastewater treatment quality. Secondly, the chemical tank 9 in the chemical application unit is separated from the moving unit and connected only to the moving unit via the application plate 11, thereby reducing the load on the moving unit. This allows the moving unit to remove impurities filtered by the filtering unit under low load conditions. Simultaneously, the mixing unit ensures rapid and uniform mixing of the chemical solution and wastewater, thereby improving the wastewater treatment quality and practicality of the chemical application device, and reducing operation difficulty and maintenance costs.

[0049] Specifically, such as Figures 1 to 4 As shown, the moving unit is located at the upper end of the sedimentation tank 1 and is used to clean the filtration unit and increase the mobility of the spraying unit. The moving unit includes a moving scraping component 3 and a moving spraying component 4; the moving scraping component 3 includes a support plate 31, a drive motor 32, a support frame 33, a threaded rod 34, a first sliding rod 35, a sliding seat 36, and a scraping plate 37; wherein, the support plate 31 is located at the upper end of the sedimentation tank 1; the drive motor 32 is located on one side of the support plate 31; the support frame 33 is located at the upper end of the sedimentation tank 1 and corresponds to the position of the support plate 31, and it mainly consists of two first support members 331 and a crossbeam 332 forming a portal support structure; one end of the threaded rod 34 passes through the support plate 31 and is connected to the output shaft of the drive motor 32, and the other end is rotatably connected to the crossbeam 332; the two ends of the first sliding rod 35 are respectively connected to the support plate 31. Plate 31 and the crossbeam 332; the slide block 36 is threadedly connected to the threaded rod 34 and slidably connected to the first slide rod 35, its upper end is connected to the sewage conveying pipe 2 through the pipe fitting 361 and a sewage outlet 362 is provided on the front side; the scraping plate 37 is provided at the bottom end of the slide block 36; the movable spraying component 4 is connected to the movable scraping component 3 through the connecting crossbar 44, and includes: a second support member 41, a second slide rod 42 and a slider 43; wherein, two second support members 41 are respectively provided on both sides of the upper end of the sedimentation tank 1; the two ends of the second slide rod 42 are respectively connected to the two second support members 41; the slider 43 is slidably connected to the second slide rod 42, and the two ends of the connecting crossbar 44 are respectively the slide block 36 and the slider 43. In practical use, the moving scraping component 3 and the moving spraying component 4 are connected by the connecting crossbar 44, and the connecting crossbar 44 is connected to the spraying unit. Thus, the drive motor 32, the threaded rod 34, and the slide block 36 simultaneously drive the scraping plate 37 and the connecting crossbar 44 to scrape off impurities from the surface of the filter unit, keeping the filter unit clean, thereby improving its working efficiency and extending its service life. Secondly, while scraping off impurities, the drug is added, increasing the mobility of the spraying operation, making the spraying more uniform, improving the sedimentation effect, and further enhancing the overall coordination and automation level of the system.

[0050] Preferably, the threaded rod 34 is rotatably connected to the crossbeam 332 via a rotating shaft provided inside the crossbeam 332, which enhances the stability of the rotation of the threaded rod 34.

[0051] Preferably, the threaded rod 34 passes through the support plate 31 and is rotatably connected to the support plate 31 through a rotating shaft provided inside the support plate 31, which is used to enhance the stability of the rotation of the threaded rod 34 and reduce the frictional resistance with the support plate 31.

[0052] Preferably, the scraping plate 37 includes a comb-shaped, arc-shaped, or flat scraping plate.

[0053] Preferably, the two second support members 41 are respectively positioned opposite to the support plate 31 and the support frame 33 to ensure the overall stability of the moving unit.

[0054] Preferably, the threaded rod 34 is parallel to the first slide rod 35, and the second slide rod 42 is parallel to the first slide rod 35, to ensure the stability of the synchronous movement of the movable scraping component 3 and the movable spraying component 4.

[0055] Preferably, the pipe fitting 361 is equipped with a remotely controllable solenoid valve for controlling the flow of sewage, thereby further improving the automation level of the spraying equipment.

[0056] Specifically, such as Figure 1 , Figure 4 and Figure 5 As shown, the mixing unit is connected to and passes through both sides of the sedimentation tank 1, used to quickly dissolve the added reagent and further react with the wastewater. The mixing unit includes: a stirring component 5 and a stirring motor 6; one end of the stirring component 5 is rotatably connected to the sedimentation tank 1, and the other end is rotatably connected to and passes through the sedimentation tank 1, with a pulley 51 at the end passing through the sedimentation tank 1; several stirring components 5 rotate synchronously through several pulleys 51 and several belts 52; several stirring blades 53 are provided in the internal area of ​​the stirring component 5 within the sedimentation tank 1; the stirring motor 6 is located outside the sedimentation tank 1, and one of its output shafts is connected to the stirring component 5. In actual use, one drive motor 6 drives several stirring components 5 to stir the wastewater in the sedimentation tank 1, allowing the reagent to dissolve quickly and react rapidly with the wastewater, improving wastewater treatment efficiency and quality.

[0057] Preferably, the connection areas between the two ends of the stirring component 5 and the sedimentation tank 1 are treated with high-quality sealing material to ensure sealing performance, prevent water leakage, and reduce later maintenance costs.

[0058] Preferably, the stirring blade 53 is rectangular in shape and is arranged circumferentially along the internal area of ​​the stirring component 5 in the sedimentation tank 1, and has multiple rings.

[0059] Specifically, such as Figure 1 , Figure 3and Figure 4 As shown, the filtration unit is connected to the sedimentation tank 1 and the moving unit respectively, and is used to initially filter impurities in the sewage to improve the sewage treatment quality. The filtration unit includes: a filter frame 7 and a drain plate 8; the two ends of the filter frame 7 are connected to the sedimentation tank 1, the support plate 31 and the support frame 33 respectively, and the upper side of the end connected to the support frame 33 has an opening; the filter frame 7 is provided with a filter screen 71 that is parallel and fits against the scraper plate 37; the drain plate 8 is connected to the two sides and the lower side of the opening. In actual use, the filter frame 7 performs preliminary treatment on the sewage to be treated, effectively intercepting large particulate solid impurities in the sewage, reducing the load on subsequent treatment units. At the same time, the moving scraper 3 scrapes off the impurities on the filter frame 7 and discharges them through the drain plate 8, avoiding clogging of the filter screen 71, further increasing the treatment capacity, reducing the frequency and labor intensity of manual cleaning, and enabling the entire system to handle larger sewage flows and meet larger-scale sewage treatment needs.

[0060] Preferably, the drive motor 32, the threaded rod 34, the first slide rod 35, and the filter screen 71 are inclined upward as a whole with respect to the support plate 31, while the drain plate 8 is inclined downward at its connection with the filter frame 7, in order to further improve the filtration capacity of the filter screen 71 and the efficiency of removing impurities.

[0061] In an optional embodiment, a collection frame 81 or a collection pipe is provided below the end of the sewage discharge plate 8 to collect the discharged impurities and prevent further pollution of the environment.

[0062] Specifically, such as Figure 1 , Figure 3 and Figure 4As shown, the spraying unit is connected to both the sedimentation tank 1 and the moving unit, and is used to uniformly spray chemicals into the sedimentation tank 1 in cooperation with the moving spraying component. The spraying unit includes: a chemical tank 9, a chemical delivery component 10, and a spraying plate 11; the chemical tank 9 is located outside the sedimentation tank 1, and a water pump 91 for delivering chemicals is provided on its outer side; the chemical delivery component 10 is connected to both the chemical tank 9 and the spraying plate 11, and includes a chemical delivery hose 101 and a chemical tube holder 102; the chemical delivery hose 101 is connected to both the water pump 91 and the spraying plate 11; the chemical tube holder 102 is located at the upper end of the sedimentation tank 1 and includes a third support member 102a. The third slide bar 102b and the tow bar 102c are respectively located on both sides of the upper end of the sedimentation tank 1; the two ends of the third slide bar 102b are respectively connected to the two third support members 102a; a number of tow bars 102c are slidably connected to the third slide bar 102b and are provided with hose clamps adapted to the drug delivery hose 101 on their lower side; the spraying plate 11 is located at the lower end of the connecting crossbar 44, and is provided with pipelines inside and a number of liquid spray nozzles are evenly distributed at the bottom end. In practical use, by separating the agent tank 9 from the mobile unit and connecting it to the mobile spraying component 4 via the delivery component 10 and the spraying plate 11, the loading and replacement of the pesticide solution can be carried out independently of the mobile spraying component 4, reducing downtime during operation and improving overall work efficiency. Secondly, the mobile spraying component 4 ensures that the pesticide solution evenly covers the target area, improving the efficiency and effectiveness of pesticide use. At the same time, since the agent tank 9 is separated from the mobile unit, the weight that the mobile unit needs to bear during operation is effectively reduced, energy consumption is reduced, the mobility, flexibility and safety of the mobile unit are improved, the service life of the spraying equipment is extended, and subsequent maintenance costs are reduced.

[0063] Preferably, the third slide bar 102b is parallel to the second slide bar 42 to ensure that the tow bar 102c moves smoothly with the moving spraying component 4, thereby preventing the drug delivery hose 101 from being too long and falling into the sedimentation tank 1 and colliding with and being damaged by the mixing unit.

[0064] like Figure 6 As shown, another embodiment of the present invention provides a method for using a high-efficiency chemical dosing device for sewage treatment sedimentation tanks, comprising the following steps:

[0065] S1: The filter unit and mixing unit are cleaned with purified water, and the spraying equipment is tested to be working properly. Then, sewage is introduced through the sewage conveying pipe 2, so that the sewage flowing out from the sewage outlet 362 is pre-treated by the filter screen 71 and falls into the sedimentation tank 1.

[0066] S2: Start the drive motor 32 and use the scraper 37 to repeatedly remove impurities from the filter screen 71;

[0067] S3: Start the water pump 91, and pump the liquid medicine in the medicine tank 9 to the liquid medicine nozzle at the bottom of the medicine spraying plate 11 through the water pump 91, and evenly sprinkle the liquid medicine into the sedimentation tank 1 by moving the medicine spraying component 4.

[0068] S4: Start the stirring motor 6, and stir the sewage and medicine in the sedimentation tank 1 through several stirring components 5 to promote the reaction between the medicine and the sewage;

[0069] S5: Replenish or replace the chemicals in the chemical tank 9 according to the sewage treatment volume or other needs;

[0070] S6: After the sewage is stopped being transported, the drive motor 32 and the water pump 91 will continue to operate for half an hour and then stop. The stirring motor 6 will continue to operate for half an hour and then also stop, waiting for the sewage in the sedimentation tank 1 to settle naturally.

[0071] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0072] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0073] In this patent, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit it; those skilled in the art will readily understand that the above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency chemical application device for a wastewater treatment sedimentation tank, characterized in that, include: The unit comprises a moving unit, a mixing unit, a filtering unit, and a spraying unit, wherein: The moving unit includes: a moving scraping component (3) and a moving spraying component (4); the moving scraping component (3) includes: a support plate (31), a drive motor (32), a support frame (33), a threaded rod (34), a slide (36), and a scraping plate (37); wherein, the support plate (31) is located at the upper end of the sedimentation tank (1); the drive motor (32) is located on one side of the support plate (31); the support frame (33) is located at the upper end of the sedimentation tank (1) and corresponds to the position of the support plate (31); The support frame (33) mainly consists of two first support members (331) and a crossbeam (332) forming a portal support structure; one end of the threaded rod (34) passes through the support plate (31) and is connected to the output shaft of the drive motor (32), and the other end is rotatably connected to the crossbeam (332); the slide (36) is threadedly connected to the threaded rod (34); the scraper plate (37) is located at the bottom of the slide (36); the movable spraying component (4) is connected to the movable scraping component (3) through a connecting crossbeam (44); The mixing unit includes: a stirring component (5) and a stirring motor (6); one end of the stirring component (5) is rotatably connected to the sedimentation tank (1), and the other end is rotatably connected to the sedimentation tank (1) and passes through the sedimentation tank (1). The stirring component (5) is provided with several stirring blades (53) in the internal area of ​​the sedimentation tank (1); the stirring motor (6) is located outside the sedimentation tank (1) and one end of its output shaft is connected to the stirring component (5); The filtration unit includes a filter frame (7) and a drain plate (8); the filter frame (7) is connected at both ends to the sedimentation tank (1), the support plate (31) and the support frame (33) respectively, and has an upper opening at one end connected to the support frame (33); the filter frame (7) is provided with a filter screen (71) that is parallel to and fits the scraping plate (37); the drain plate (8) is connected to both sides and the lower side of the opening; The spraying unit includes: a medicine tank (9), a medicine delivery component (10), and a spraying plate (11); the medicine tank (9) is located outside the sedimentation tank (1), and a water pump (91) for delivering medicine is provided on its outside; the medicine delivery component (10) is connected to the medicine tank (9) and the spraying plate (11) respectively; the spraying plate (11) is located at the lower end of the connecting crossbar (44), and has a pipeline inside and several liquid spray nozzles are evenly distributed at the bottom end; By separating the medicine tank (9) from the mobile unit and connecting it to the mobile unit only through the medicine spraying plate (11), the load on the mobile unit is reduced, so that the mobile unit can remove the impurities filtered in the filter unit under low load conditions, and at the same time, the mixing unit can make the medicine and sewage mix quickly and evenly.

2. The spraying device according to claim 1, characterized in that, The movable scraping component (3) includes a first slide rod (35), the two ends of which are respectively connected to the support plate (31) and the crossbeam (332), and are slidably connected to the slide block (36); The threaded rod (34) is parallel to the first slide rod (35).

3. The spraying device according to claim 2, characterized in that, The drive motor (32), the threaded rod (34), the first slide rod (35) and the filter screen (71) are inclined upward as a whole by the support plate (31); The drain plate (8) is inclined downward at the connection point with the filter frame (7).

4. The spraying device according to claim 2, characterized in that, The movable spraying component (4) includes: a second support member (41), a second slide rod (42), and a slider (43); wherein, two second support members (41) are respectively located on both sides of the upper end of the sedimentation tank (1); the two ends of the second slide rod (42) are respectively connected to the two second support members (41); the slider (43) is slidably connected to the second slide rod (42), and the two ends of the connecting crossbar (44) are respectively connected to the slide block (36) and the slider (43). The second slide bar (42) is parallel to the first slide bar (35).

5. The spraying device according to claim 4, characterized in that, The drug delivery component (10) includes a drug delivery hose (101) and a drug tube holder (102); the drug delivery hose (101) is connected to the water pump (91) and the spraying plate (11) respectively. The drug delivery tube rack (102) is located at the upper end of the sedimentation tank (1), and includes a third support member (102a), a third slide rod (102b), and a tow bar (102c); two third support members (102a) are respectively located on both sides of the upper end of the sedimentation tank (1); the two ends of the third slide rod (102b) are respectively connected to the two third support members (102a); a plurality of tow bars (102c) are slidably connected to the third slide rod (102b) and have hose clamps adapted to the drug delivery hose (101) on their lower side; The third slide bar (102b) is parallel to the second slide bar (42).

6. The spraying device according to any one of claims 1 to 5, characterized in that, The upper end of the slide (36) is connected to the sewage conveying pipe (2) through the pipe fitting (361) and the front side is provided with a sewage outlet (362). The fitting (361) is equipped with a remotely controllable solenoid valve.

7. The spraying device according to any one of claims 1 to 5, characterized in that, The stirring component (5) has a pulley (51) at one end that passes through the sedimentation tank (1). The stirring components (5) rotate synchronously through a number of pulleys (51) and belts (52).

8. The spraying device according to any one of claims 1 to 5, characterized in that, The scraping plate (37) includes any type of scraping plate that is comb-shaped, arc-shaped, or flat.

9. A method for using a high-efficiency chemical application device for a wastewater treatment sedimentation tank, implemented using the chemical application device as described in claim 6, characterized in that, Includes the following steps: S1: The filter unit and mixing unit are cleaned with purified water, and the spraying equipment is tested to be working properly. Then, sewage is introduced through the sewage conveying pipe (2) so that the sewage flowing out from the sewage outlet (362) is pre-treated by the filter screen (71) and falls into the sedimentation tank (1). S2: Start the drive motor (32) and use the scraper (37) to repeatedly remove impurities from the filter screen (71); S3: Start the water pump (91) to pump the liquid medicine in the medicine tank (9) to the liquid medicine nozzle at the bottom of the medicine spraying plate (11) through the water pump (91), and evenly sprinkle the liquid medicine into the sedimentation tank (1) by moving the medicine spraying component (4); S4: Start the stirring motor (6) and stir the sewage and medicine in the sedimentation tank (1) through several stirring components (5) to promote the reaction between the medicine and the sewage; S5: Replenish or replace the agents in the agent tank (9) according to the sewage treatment volume or other needs; S6: After the sewage is stopped, the drive motor (32) and the water pump (91) continue to operate for half an hour and then stop. The stirring motor (6) continues to operate for half an hour and then also stops, waiting for the sewage in the sedimentation tank (1) to settle naturally.

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