Sewage filter based on water conservancy construction site construction

Abstract

The invention belongs to the technical field of water pollution control and treatment, particularly relates to a sewage filter for water conservancy construction site construction, and aims to solve the problems that an existing sewage filter for water conservancy construction site construction is easy to block during filtration and inconvenient to clean, the pH value of sewage cannot be adjusted, and the treated sewage still has pH value unbalance and bacteria exceed the standard. In order to solve the problems of difficulty in reaching the environment-friendly discharge or cyclic utilization standard and easiness in causing the hidden danger of environmental pollution in the prior art, the invention provides the following scheme: the device comprises a filter cartridge, four supporting legs are arranged at the bottom of the filter cartridge, the tail end of the filter cartridge is provided with an opening and is blocked by a blocking plate, and a water outlet pipe is arranged on the blocking plate. According to the invention, full-flow automatic treatment of introduction, transfer, filtration, blockage prevention, acid and alkali adjustment, disinfection, sterilization, backflushing and up-to-standard discharge of water conservancy construction sewage is realized, and the technical problems of easy blockage, incomplete water treatment, low automation degree and the like of the existing filter are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of water pollution control and treatment technology, and in particular to a wastewater filter for use in water conservancy construction sites. It is mainly applied during the construction process of water conservancy projects to filter, adjust the pH level, and sterilize wastewater generated during construction, achieving the goal of discharging wastewater in compliance with standards or recycling it. Background Technology

[0002] Construction wastewater from water conservancy projects is complex in composition, characterized by large instantaneous discharge volumes and drastic fluctuations in water quality. It typically contains high concentrations of suspended sediment, grease, cement slurry, alkaline wastewater, and other chemical additives. Existing wastewater treatment equipment for such scenarios often suffers from the following limitations: First, it employs fixed, multi-stage series filtration, with each treatment unit (such as cyclone sand removal, coarse filtration, and fine filtration) operating independently with fixed parameters. This makes it impossible to adjust the operating status according to real-time changes in influent water quality, leading to energy waste at low loads and a sharp drop in treatment efficiency or even clogging under high loads or sudden changes in water quality. Second, equipment cleaning and maintenance often rely on independent subsystems, such as backwash pumps and chemical dosing devices, lacking coordination with the main filtration process. This results in incomplete cleaning, high energy and water consumption, and long downtime for maintenance. Furthermore, traditional equipment has complex mechanical structures and poor interoperability, making it difficult to achieve compact design and automated intelligent operation.

[0003] Existing wastewater filters used at water conservancy construction sites are prone to clogging, are inconvenient to clean, cannot adjust the pH of wastewater, and lack effective sterilization and disinfection mechanisms. As a result, the treated wastewater still suffers from pH imbalance and excessive bacteria, making it difficult to meet environmental discharge or recycling standards and posing a potential environmental pollution hazard. Summary of the Invention

[0004] The purpose of this invention is to solve the shortcomings of existing sewage filters used in water conservancy construction sites, such as easy clogging, inconvenient cleaning, inability to adjust the pH of sewage, lack of effective sterilization and disinfection mechanisms, and the fact that treated sewage still has problems such as pH imbalance and excessive bacteria, making it difficult to meet environmental discharge or recycling standards and easily causing potential environmental pollution hazards. Therefore, this invention proposes a sewage filter for use in water conservancy construction sites.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A wastewater filter for use in water conservancy construction sites includes a filter cylinder with four support legs at the bottom. The tail end of the filter cylinder is open and sealed with a sealing plate. A water outlet pipe is installed on the sealing plate, and a second solenoid valve is installed on the water outlet pipe. The filter also includes: The filtration mechanism, located inside the filter cartridge, is used for filtering wastewater. The sewage transfer mechanism and the sewage treatment mechanism are respectively located on both sides of the filtration mechanism and are used for sewage storage and transfer. The isolation plate is fixedly installed inside the filter cartridge, which confines the filtration mechanism, sewage transfer mechanism and sewage treatment mechanism to the right side of the isolation plate. The isolation plate divides the left side of the filter cartridge into a testing and sterilization area. The backwash cleaning mechanism is fixedly installed on the lower right side of the isolation plate. It is used to backwash and clean the filter mechanism and is connected to the testing and sterilization area. A drive mechanism is mounted on the filter cylinder and cooperates with the sewage transfer mechanism. An inlet pipe is fixedly installed on the top of the filter cylinder, and the bottom of the inlet pipe is located inside the sewage transfer mechanism and cooperates with the drive mechanism. The reagent addition mechanism is located at the top of the filter cartridge and is connected to the wastewater treatment unit.

[0006] Preferably, a controller is fixedly installed on the rear side of the sealing plate, and an ultraviolet sterilization lamp and a wastewater detection sensor are connected to the controller. Both the ultraviolet sterilization lamp and the wastewater detection sensor are located in the detection sterilization area.

[0007] Preferably, the filtration mechanism includes a sealing circular plate, a sealing ring is fitted on the outer side of the sealing circular plate and is slidably connected to the inner wall of the filter cylinder, the sealing circular plate has multiple fan-shaped filter holes, each of the multiple fan-shaped filter holes is provided with a fan-shaped filter plate, the fan-shaped filter plate is flush with the fan-shaped filter holes, the fan-shaped filter plate has multiple filter holes, and a horn groove is provided near the position of the filter hole near the sewage treatment mechanism.

[0008] Multiple fan-shaped filter holes on the sealed circular plate are embedded with fan-shaped filter plates to form multiple filter units, thereby expanding the filtration area and improving filtration efficiency. The filter holes on the fan-shaped filter plates are used to filter suspended impurities and fine particles in wastewater, while the funnel grooves can guide large particles of impurities entering the filter holes, making it easier for impurities to be discharged and reducing clogging.

[0009] Preferably, the sewage transfer mechanism includes a sewage transfer box, which is fixedly installed on the inner wall of the filter cylinder. A sewage outlet is provided on one side of the sewage transfer box, which is in contact with the filter mechanism. An impurity discharge pipe is connected to the bottom of the sewage transfer box, and a manual valve is provided on the impurity discharge pipe, which extends to the outside of the filter cylinder.

[0010] Preferably, the wastewater treatment mechanism includes a wastewater treatment box, which is fixedly installed on the inner wall of the filter cylinder. A connecting groove is provided on one side of the wastewater treatment box, which fits into the filter mechanism. A treatment bend is fixedly installed on the right side of the wastewater treatment box, and a fourth solenoid valve is provided on the treatment bend. The treatment bend passes through the isolation plate and extends to the position of the detection and sterilization area.

[0011] Preferably, the reagent addition mechanism includes a support plate, and two support rods are fixedly installed at the bottom of the support plate. Both support rods are fixedly installed at the top of the filter cylinder. An acid cylinder, an alkaline cylinder, and a disinfection cylinder are provided at the top of the support plate. The bottom of the acid cylinder, the alkaline cylinder, and the disinfection cylinder are all connected to a bend pipe. A first solenoid valve is provided on the bend pipe. The bend pipe passes through the filter cylinder and extends into the interior of the sewage treatment box.

[0012] Preferably, both the sewage transfer box and the sewage treatment box are provided with sealing strips near the sealing disc.

[0013] Preferably, the drive mechanism includes a drive shaft and a driven shaft, both of which are rotatably mounted on the filter cylinder via bearings. The inner end of the drive shaft extends into the sewage transfer box and is fixedly mounted with a water flow plate, which is located below the inlet pipe.

[0014] Preferably, a first pulley is fixedly installed on the outer side of the drive shaft, the inner end of the driven shaft is fixedly installed with a sealing circular plate, and a second pulley is fixedly installed on the outer end of the driven shaft. The outer sides of the first pulley and the second pulley are connected by the same belt.

[0015] The filtration mechanism rotates using the impact force of the wastewater itself, eliminating the need for an additional power source.

[0016] Preferably, the backwash cleaning mechanism includes a water pump, which is fixedly installed on the right side of the isolation plate. The inlet of the water pump is connected to a suction pipe, and a third solenoid valve is installed on the suction pipe. The suction pipe is connected to the detection and sterilization area. The outlet of the water pump is connected to a water supply pipe, and a hollow box is connected to the water supply pipe. Multiple spray pipes are installed on the hollow box near the filter mechanism.

[0017] Preferably, a drain pipe is connected to the lower right side of the filter cartridge.

[0018] The beneficial effects of the wastewater filter used in water conservancy construction sites described in this invention are as follows: 1. The filter structure consists of multiple sets of fan-shaped filter plates, which expands the filtration area and improves filtration efficiency. It is equipped with an automatic rotating anti-clogging mechanism driven by water flow. The fan-shaped filter plates rotate and are misaligned to prevent the filter surface from being covered by impurities for a long time, thus reducing clogging. The backwash cleaning mechanism can quickly and thoroughly remove the clogging impurities in the filter holes without disassembling the equipment. It is convenient to clean and ensures stable filtration efficiency, making it suitable for construction wastewater with high impurity content.

[0019] 2. Equipped with a chemical addition mechanism, the acidity and alkalinity of wastewater can be flexibly adjusted. Combined with sterilization and disinfection mechanisms, it realizes integrated treatment of wastewater "filtration-acidity and alkalinity adjustment-sterilization-disinfection", ensuring that the treated wastewater meets environmental discharge or recycling standards and eliminating potential environmental pollution risks.

[0020] 3. Design a dedicated wastewater transfer and storage mechanism to ensure smooth wastewater transfer. At the same time, set up a convenient impurity discharge structure to promptly discharge large particles of sediment, prevent impurity accumulation and bacterial growth, and ensure filtration and treatment effects.

[0021] 4. The controller enables coordinated operation of various components, automatically completing processes such as sewage filtration, water quality testing, pH adjustment, sterilization and disinfection, backwashing and cleaning, and discharge to meet standards. This reduces manual intervention, lowers the labor intensity of staff, and is suitable for the continuous treatment of large batches of sewage.

[0022] This invention achieves fully automated treatment of construction wastewater at water conservancy construction sites through the coordinated operation of six mechanisms, encompassing "introduction, transfer, filtration, anti-clogging, acid and alkali adjustment, disinfection, sterilization, backwashing, and discharge to meet standards." Each component has a clear division of labor and close linkage, effectively solving the technical pain points of existing filters such as easy clogging, incomplete water treatment, and low automation, ensuring efficient and thorough wastewater treatment and contributing to green construction. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a sewage filter for use in water conservancy construction sites proposed in this invention; Figure 2 This is a side view schematic diagram of a sewage filter for use in water conservancy construction sites proposed in this invention. Figure 3 This is a bottom view schematic diagram of a sewage filter for use in water conservancy construction sites proposed in this invention. Figure 4 This is a cross-sectional structural schematic diagram of a sewage filter for use in water conservancy construction sites proposed in this invention. Figure 5 This invention provides a structural schematic diagram of an isolation plate, a filtration mechanism, a sewage transfer mechanism, and a sewage treatment mechanism. Figure 6 This invention provides a structural schematic diagram of the filtration mechanism, the wastewater transfer mechanism, and the wastewater treatment mechanism; Figure 7 This is a side view of the filtration mechanism, wastewater transfer mechanism, and wastewater treatment mechanism proposed in this invention. Figure 8 This invention provides a schematic diagram of the structure of the drug addition mechanism; Figure 9This is a bottom view of the structure of the drug addition mechanism proposed in this invention; Figure 10 A schematic diagram of the backflushing cleaning mechanism is provided for this invention; Figure 11 This is a side view of the backflushing cleaning mechanism proposed in this invention. Figure 12 The present invention provides a structural schematic diagram of the sealing plate, controller, outlet pipe, and sewage detection sensor; Figure 13 This invention presents a structural schematic diagram of a sealing circular plate, a fan-shaped filter hole, a second pulley, and a driven shaft. Figure 14 This invention presents a schematic diagram of the structure of a fan-shaped filter plate. Figure 15 This is a side view of the fan-shaped filter plate proposed in this invention. Figure 16 This invention provides a structural schematic diagram of the sewage transfer mechanism, drive shaft, flow plate, and first pulley. Figure 17 This is a schematic diagram of the wastewater treatment mechanism proposed in this invention.

[0024] In the diagram: 1. Filter cartridge; 11. Support leg; 12. Inlet pipe; 13. Sewage pipe; 14. Detection and sterilization area; 15. Isolation plate; 2. Chemical addition mechanism; 21. Support plate; 22. Acidic cartridge; 23. Alkaline cartridge; 24. Disinfection cartridge; 25. Support rod; 26. Bend; 27. First solenoid valve; 3. Sealing plate; 31. Outlet pipe; 32. Second solenoid valve; 4. Controller; 41. Ultraviolet sterilization lamp; 42. Sewage detection sensor; 5. Drive mechanism; 51. Drive shaft; 52. Flow plate; 53. First pulley; 54. Belt; 5 5. Second pulley; 56. Driven shaft; 6. Backflushing cleaning mechanism; 61. Water pump; 62. Suction pipe; 63. Third solenoid valve; 64. Water supply pipe; 65. Hollow box; 66. Spray pipe; 7. Filtration mechanism; 71. Sealing circular plate; 72. Fan-shaped filter hole; 73. Fan-shaped filter plate; 74. Filter hole; 741. Horn groove; 8. Sewage transfer mechanism; 81. Sewage transfer box; 82. Sewage outlet; 83. Impurity discharge pipe; 9. Sewage treatment mechanism; 91. Sewage treatment box; 92. Treatment bend; 93. Fourth solenoid valve; 94. Connecting groove. Detailed Implementation

[0025] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this embodiment, and not all embodiments.

[0026] Example 1: Refer to Figures 1-17A wastewater filter for use in water conservancy construction sites includes a filter cylinder 1, a sealing plate 3, a filtration mechanism 7, a wastewater transfer mechanism 8, a wastewater treatment mechanism 9, a partition plate 15, a backwash cleaning mechanism 6, a drive mechanism 5, and a chemical addition mechanism 2. The filter cylinder 1 has a horizontal cylindrical structure with four symmetrically distributed support legs 11 fixed at the bottom. A drain pipe 13 is connected to the lower right side of the filter cylinder 1. The tail end of the filter cylinder 1 is open, and a sealing plate 3 is detachably sealed at the opening. A water outlet pipe 31 is fixedly installed on the sealing plate 3, and a second solenoid valve 32 is fixedly installed on the water outlet pipe 31. The partition plate 15 is fixedly installed inside the filter cylinder 1, dividing the left side of the filter cylinder 1 into a detection and sterilization area 14. The filtration mechanism 7, the wastewater transfer mechanism 8, and the wastewater treatment mechanism are also included. All components 9 are confined to the right side of the isolation plate 15; the filtration mechanism 7 is located inside the filter cylinder 1 and is used to filter sewage; the sewage transfer mechanism 8 and the sewage treatment mechanism 9 are respectively located on both sides of the filtration mechanism 7 and are used for sewage storage and transfer; the backwash cleaning mechanism 6 is fixedly installed on the lower right side of the isolation plate 15 and is connected to the detection and sterilization area 14, and is used to backwash and clean the filtration mechanism 7; the drive mechanism 5 is located on the filter cylinder 1 and cooperates with the sewage transfer mechanism 8; an inlet pipe 12 is fixedly installed on the top of the filter cylinder 1, and the bottom opening of the inlet pipe 12 is located inside the sewage transfer mechanism 8 and cooperates with the drive mechanism 5; the reagent addition mechanism 2 is located on the top of the filter cylinder 1 and is connected to the sewage treatment mechanism 9, and is used to adjust the pH of the sewage and disinfect it.

[0027] Specifically, four symmetrically distributed support legs 11 are fixed at the bottom of the filter cylinder 1. Anti-slip pads can be installed on the bottom of the support legs 11 to ensure the stability of the device and prevent the equipment from shaking due to bumps in the construction site. The tail end of the filter cylinder 1 is open and can be detachably sealed by the sealing plate 3. A sealing gasket is set between the sealing plate 3 and the filter cylinder 1 to enhance the sealing performance and prevent sewage leakage. The water outlet pipe 31 on the sealing plate 3 cooperates with the second solenoid valve 32 to control the discharge of qualified sewage. The sewage discharge pipe 13 on the lower right side of the filter cylinder 1 is used to discharge the sewage and impurities after backwashing and cleaning, so as to achieve the separate discharge of qualified sewage and waste impurities and avoid confusion.

[0028] The isolation plate 15 is fixedly installed inside the filter cartridge 1, dividing the filter cartridge 1 into a left detection and sterilization zone 14 and a right filtration and treatment zone, realizing the zoned operation of "filtration-detection-sterilization", avoiding mutual interference and improving processing efficiency and effect.

[0029] The filtration unit 7, sewage transfer unit 8, and sewage treatment unit 9 are all located in the filtration and treatment area on the right, and are responsible for the filtration and transfer of sewage. The detection and sterilization area 14 is equipped with an ultraviolet sterilization lamp 41 and a sewage detection sensor 42, which are responsible for the sterilization of sewage and water quality detection, forming a complete treatment process.

[0030] Reference Figure 12In this embodiment, a controller 4 is fixedly installed on the rear side of the sealing plate 3. The controller 4 is electrically connected to an ultraviolet sterilization lamp 41 and a wastewater detection sensor 42. Both the ultraviolet sterilization lamp 41 and the wastewater detection sensor 42 extend into the detection sterilization zone 14. The ultraviolet sterilization lamp 41 is used to sterilize the wastewater, and the wastewater detection sensor 42 is used to detect the acidity, alkalinity and cleanliness of the wastewater.

[0031] Reference Figures 13-15 In this embodiment, the filtration mechanism 7 includes a sealing circular plate 71 and a plurality of fan-shaped filter plates 73. A sealing ring is fitted on the outer side of the sealing circular plate 71, which is slidably connected to the inner wall of the filter cylinder 1. A plurality of evenly distributed fan-shaped filter holes 72 are opened on the sealing circular plate 71, and the fan-shaped filter plates 73 are embedded in the fan-shaped filter holes 72 one by one and are flush with the fan-shaped filter holes 72. A plurality of evenly arranged filter holes 74 are opened on the fan-shaped filter plates 73. A horn groove 741 is provided on the side of the filter hole 74 near the sewage treatment mechanism 9 for guiding and facilitating the discharge of large particulate impurities.

[0032] Reference Figure 16 In this embodiment, the sewage transfer mechanism 8 includes a sewage transfer box 81, a sewage outlet 82, and an impurity discharge pipe 83. The sewage transfer box 81 is fixedly installed on the inner wall of the filter cylinder 1, and a sewage outlet 82 is provided on one side. The sewage outlet 82 is tightly fitted with the sealing circular plate 71 of the filter mechanism 7. The bottom of the sewage transfer box 81 is connected to the impurity discharge pipe 83, which is equipped with a manual valve and extends to the outside of the filter cylinder 1 for discharging sedimented impurities in the sewage.

[0033] Reference Figure 17 In this embodiment, the wastewater treatment mechanism 9 includes a wastewater treatment box 91, a treatment bend 92, and a fourth solenoid valve 93. The wastewater treatment box 91 is fixedly installed on the inner wall of the filter cylinder 1, and a connecting groove 94 is provided on one side. The connecting groove 94 is tightly fitted with the sealing circular plate 71 of the filter mechanism 7. The treatment bend 92 is fixedly installed on the right side of the wastewater treatment box 91, and the fourth solenoid valve 93 is fixedly installed on the treatment bend 92. The treatment bend 92 penetrates the isolation plate 15 and extends into the detection and sterilization zone 14, and is used to introduce the filtered wastewater into the detection and sterilization zone 14.

[0034] Specifically, both the sewage transfer box 81 and the sewage treatment box 91 are fixedly provided with sealing strips on the side near the sealing disc 71 to enhance sealing performance and prevent sewage leakage.

[0035] Reference Figure 8 , Figure 9In this embodiment, the reagent addition mechanism 2 includes a support plate 21, two support rods 25, an acid cylinder 22, an alkaline cylinder 23, a disinfection cylinder 24, three bends 26, and three first solenoid valves 27. The support plate 21 is fixedly installed on the top of the filter cylinder 1 by the two support rods 25. The acid cylinder 22, the alkaline cylinder 23, and the disinfection cylinder 24 are all fixedly installed on the top of the support plate 21. The three bends 26 are respectively connected to the bottom of the acid cylinder 22, the alkaline cylinder 23, and the disinfection cylinder 24. A first solenoid valve 27 is fixedly installed on each bend 26. The bends 26 penetrate the filter cylinder 1 and extend into the sewage treatment box 91.

[0036] Reference Figures 5-7 In this embodiment, the drive mechanism 5 includes a drive shaft 51, a driven shaft 56, a water flow plate 52, a first pulley 53, a second pulley 55, and a belt 54. The drive shaft 51 and the driven shaft 56 are both rotatably mounted on the filter cylinder 1 via bearings. The inner end of the drive shaft 51 extends into the sewage transfer box 81 and is fixedly mounted with the water flow plate 52, which is located below the inlet pipe 12. The first pulley 53 is fixedly mounted on the outside of the drive shaft 51, and the second pulley 55 is fixedly mounted on the outside of the driven shaft 56. The belt 54 drives between the first pulley 53 and the second pulley 55. The inner end of the driven shaft 56 is fixedly connected to the sealing circular plate 71.

[0037] Reference Figure 10 , Figure 11 In this embodiment, the backwash cleaning mechanism 6 includes a water pump 61, a suction pipe 62, a third solenoid valve 63, a water supply pipe 64, a hollow box 65, and multiple spray pipes 66. The water pump 61 is fixedly installed on the right side of the isolation plate 15. The inlet of the water pump 61 is connected to the suction pipe 62, and the third solenoid valve 63 is fixedly installed on the suction pipe 62. The suction pipe 62 is connected to the detection sterilization area 14. The outlet of the water pump 61 is connected to the water supply pipe 64, and the water supply pipe 64 is connected to the hollow box 65. Multiple spray pipes 66 are evenly arranged on the side of the hollow box 65 near the filter mechanism 7, and the outlet of the spray pipes 66 faces the filter mechanism 7.

[0038] Specifically, the filter cartridge 1, sewage transfer box 81, and sewage treatment box 91 are all made of stainless steel, which is corrosion-resistant and easy to clean; the sewage detection sensor 42, each solenoid valve, water pump 61, and ultraviolet sterilization lamp 41 are all electrically connected to the controller 4 to realize automated collaborative control.

[0039] In this embodiment, the installation and commissioning steps of a sewage filter used in water conservancy construction sites are as follows: 1. Move the assembled sewage filter to the pre-set working position at the water conservancy construction site, adjust the support legs 11 to keep the filter cylinder 1 horizontal, and ensure that the device is placed stably without shaking; check the connection of each component, tighten loose bolts and welds to ensure reliable connection of components; check the sealing performance of each sealing part, such as the sealing plate 3, isolation plate 15, and openings, and replace damaged sealing gaskets and sealing rings; connect the sewage discharge pipe 13 to the sewage discharge pipe of the construction site, and connect the outlet pipe 31 to the qualified sewage collection pipe or recycling pipe; add appropriate amounts of acid water, alkali solution, and disinfectant powder to the acid cylinder 22, alkaline cylinder 23, and disinfection cylinder 24 respectively to ensure sufficient reagents.

[0040] 2. Connect the external power supply of the device, start the controller 4, and perform a self-test on all electrical components. Check whether the power supply of each component is normal and whether the control functions of the controller 4 are normal, including start / stop control, signal reception and transmission, etc. Start each component individually and test its operating status: whether the solenoid valves 27, 32, 63, and 93 are flexible, without jamming or leakage; whether the water pump 61 runs smoothly, whether the water intake and supply are normal, and whether there is abnormal noise; whether the ultraviolet sterilization lamp 41 emits light normally and whether the sterilization function is effective; whether the sewage detection sensor 42 is working normally and whether the detection signal can be accurately transmitted to the controller 4; whether the belt drive of the drive mechanism 5 is smooth, and whether the rotation of the drive shaft 51 and the driven shaft 56 is flexible and without jamming.

[0041] 3. Close all solenoid valves and inject an appropriate amount of simulated construction wastewater containing silt and fine particles into the wastewater transfer box 81 through the inlet pipe 12; observe the sealing performance of the wastewater transfer box 81 to ensure there is no wastewater leakage; the wastewater enters the filtration mechanism 7 through the wastewater outlet 82, observe the filtration effect of the fan-shaped filter plate 73, and ensure that the wastewater can smoothly pass through the filter hole 74 into the wastewater treatment box 91, and that the filtered wastewater has no obvious suspended impurities; open the fourth solenoid valve 93 and observe whether the filtered wastewater can smoothly pass through the treatment bend pipe 92 into the detection and sterilization area 14, without leakage or blockage; open the manual valve on the impurity discharge pipe 83 and observe whether the precipitated large particle impurities can be smoothly discharged, and close the manual valve after discharge.

[0042] 4. Inject filtered wastewater into the sterilization zone 14, activate the wastewater detection sensor 42, test its detection accuracy, manually adjust the wastewater pH, observe whether the controller 4 can accurately receive the signal, and control the corresponding first solenoid valve 27 to open and close, add acidic or alkaline solutions to adjust the pH until the wastewater pH reaches the standard value of 6.5-8.5; activate the first solenoid valve 27 corresponding to the disinfection cylinder 24 to test whether the disinfection powder is added smoothly and whether the amount added is controllable; activate the ultraviolet sterilization lamp 41, and after running for a period of time, detect the bacterial content in the wastewater to ensure that the sterilization effect meets the standard; after the test is completed, open the second solenoid valve 32 and observe whether the qualified wastewater can be smoothly discharged through the outlet pipe 31.

[0043] 5. Manually block the filter holes 74 of the sector filter plate 73, start the backwash cleaning mechanism 6, open the third solenoid valve 63, start the water pump 61, and observe whether the spray pipe 66 can spray clean water under high pressure to backwash the sector filter plate 73, whether the blocked impurities can be completely removed, and whether the sewage and impurities after backwashing can be smoothly discharged through the drain pipe 13; close the backwash cleaning mechanism 6, inject sewage into the inlet pipe 12, and observe whether the drive mechanism 5 can work normally. The water flow impacts the water flow plate 52, causing the sector filter plate 73 to rotate and misalign, ensuring that the anti-clogging function is effective.

[0044] 6. Start the complete wastewater treatment process, simulating the treatment of batch construction wastewater from a water conservancy construction site. Continuously inject wastewater containing silt, impurities, and pH imbalance into the device through inlet pipe 12. Check the coordinated operation of each component: whether filtration, transfer, water quality testing, pH adjustment, sterilization, backwashing, and compliant discharge are smooth, whether command transmission is timely, and whether the response of each component is sensitive. Test the indicators of the treated wastewater to ensure that there are no suspended impurities after filtration, the pH value meets the standard (6.5-8.5), and the bacterial content meets the standard. If any abnormalities occur, promptly investigate and troubleshoot the faults, such as blockages, leaks, electrical faults, or improper chemical dosing. Adjust and re-test until the entire system operates stably and reliably without any abnormalities. Complete the installation and commissioning, and prepare for formal operation.

[0045] Working principle: Wastewater generated during construction at the water conservancy site, containing silt, gravel particles, suspended impurities, etc., is continuously injected into the wastewater transfer box 81 inside the filter cylinder 1 through the inlet pipe 12. The bottom of the inlet pipe 12 is located inside the wastewater transfer box 81 and above the water flow plate 52, ensuring that the wastewater can directly impact the water flow plate 52 to provide power for the drive mechanism 5. The wastewater transfer box 81 is used to store the introduced wastewater, preventing the wastewater from directly impacting the filter mechanism 7 and causing the filter holes 74 to become clogged. It also acts as a buffer, ensuring that the wastewater is evenly distributed for subsequent filtration. The wastewater outlet 82 on the side of the wastewater transfer box 81 near the sealing circular plate 71 is tightly fitted to the sealing circular plate 71, and a sealing strip is provided on the edge to ensure that the wastewater will not leak from the gaps and can only enter the next stage through the filter holes 74 of the fan-shaped filter plate 73.

[0046] When wastewater is temporarily stored in the wastewater transfer box 81, large particles of impurities in the wastewater, such as gravel and coarse silt, settle at the bottom of the wastewater transfer box 81 due to gravity, preventing these impurities from entering the filter holes 74 and causing blockage. According to the impurity content of the wastewater, the staff can periodically open the manual valve on the impurity discharge pipe 83 to discharge the settled large particles of impurities through the impurity discharge pipe 83 to the outside of the filter cylinder 1. After the discharge is completed, the manual valve is closed to ensure that there are no impurities accumulating in the wastewater transfer box 81, ensuring smooth wastewater transfer and preventing impurities from breeding bacteria and affecting the wastewater treatment effect.

[0047] Through the coordinated operation of the filtration mechanism 7 and the drive mechanism 5, efficient filtration and automatic anti-clogging of sewage are achieved, preventing the filtration efficiency from decreasing due to clogging of the filter holes 74. The specific working logic is as follows: Wastewater filtration: Wastewater in the wastewater transfer box 81 flows through the wastewater outlet 82 to the sealing circular plate 71 of the filtration mechanism 7. The fan-shaped filter plates 73 on the sealing circular plate 71 are evenly distributed in multiple groups, forming a large-area filtration surface. The wastewater undergoes double-layer filtration through the filter holes 74 on the fan-shaped filter plates 73. The diameter of the filter holes 74 is 0.5-1mm, which can effectively intercept suspended impurities, fine silt and other particulate pollutants in the wastewater. The filtered wastewater enters the wastewater treatment box 91 through the fan-shaped filter holes 72 of the sealing circular plate 71, completing the preliminary filtration treatment of the wastewater. The funnel groove 741 on the side of the filter hole 74 near the wastewater treatment mechanism 9 can guide the fine particles entering the filter hole 74, and at the same time facilitate the discharge of impurities during subsequent backwashing and cleaning, further reducing the risk of clogging.

[0048] Automatic anti-clogging: When sewage flows into the sewage transfer box 81 through the inlet pipe 12, the impact force of the sewage will act on the water flow plate 52, causing the water flow plate 52 to rotate around the drive shaft 51. The water flow plate 52 adopts 3-4 arc-shaped stainless steel structures, which are evenly distributed at the end of the drive shaft 51, and can fully absorb the impact force of sewage to ensure sufficient rotation power. The rotation of the water flow plate 52 drives the drive shaft 51 to rotate synchronously. The first pulley 53 on the outside of the drive shaft 51 drives the second pulley 55 on the outside of the passive shaft 56 to rotate through the belt 54, thereby driving the passive shaft 56 to rotate synchronously. The inner end of the passive shaft 56 is fixedly connected to the sealing circular plate 71. Therefore, the sealing circular plate 71 will rotate slowly with the passive shaft 56, causing the fan-shaped filter plate 73 embedded in the fan-shaped filter hole 72 to rotate and be misaligned.

[0049] By continuously rotating and misaligning the fan-shaped filter plate 73, the filter surface can be prevented from being covered by impurities for a long time while fixed in the same position, keeping the filter holes 74 unobstructed and achieving automatic anti-clogging. At the same time, during the rotation, the contact position between the fan-shaped filter plate 73 and the sewage outlet 82 and the connecting groove 94 changes continuously, which can reduce the accumulation of impurities in the contact gaps and further improve the anti-clogging effect. This driving method utilizes the impact force of the sewage itself, requiring no additional power source, saving energy, and the transmission is smooth, adapting to the characteristics of fluctuating construction sewage discharge.

[0050] Through the coordinated operation of the reagent addition mechanism 2, the detection and sterilization zone 14, and the controller 4, the integrated treatment of wastewater—including acid and alkali adjustment, disinfection, and sterilization—is achieved, ensuring that the wastewater quality meets standards. The specific working logic is as follows: The filtered wastewater enters the wastewater treatment box 91. The connecting groove 94 on the side of the wastewater treatment box 91 near the sealing disc 71 fits tightly with the sealing disc 71 and is equipped with a sealing strip to prevent wastewater leakage. The controller 4 controls the fourth solenoid valve 93 to open, and the filtered wastewater in the wastewater treatment box 91 is introduced into the detection and sterilization zone 14 through the treatment bend 92. The treatment bend 92 passes through the isolation plate 15 and is equipped with a sealing ring between it and the isolation plate 15 to ensure sealing performance. After the wastewater is introduced into the detection and sterilization zone 14, the controller 4 activates the wastewater detection sensor 42 to detect the pH value and cleanliness of the wastewater in real time. The detection data is transmitted to the controller 4 in real time, and the controller 4 determines whether the wastewater needs to be adjusted in pH and further disinfected.

[0051] After receiving the pH detection signal from the wastewater detection sensor 42, the controller 4 compares it with the preset standard range of pH 6.5-8.5. If the wastewater is detected to be too acidic (pH < 6.5), the controller 4 automatically sends a signal to open the first solenoid valve 27 on the bottom bend 26 of the alkaline cylinder 23. The alkaline solution in the alkaline cylinder 23 is then introduced into the wastewater treatment box 91 through the bend 26 to fully mix with the filtered wastewater and adjust the pH of the wastewater to the standard range. If the wastewater is detected to be too alkaline (pH > 8.5), the controller 4 controls the first solenoid valve 27 on the bottom bend 26 of the acid cylinder 22 to open. The acidic water in the acid cylinder 22 is then introduced into the wastewater treatment box 91 through the bend 26 to neutralize the pH of the wastewater. During the pH adjustment process, the wastewater detection sensor 42 continuously monitors the pH of the wastewater. When the standard range is reached, the controller 4 automatically controls the corresponding first solenoid valve 27 to close, stopping the chemical dosing and ensuring accurate chemical dosing to avoid waste and secondary pollution.

[0052] While adjusting the pH, the controller 4 controls the opening of the first solenoid valve 27 on the bottom bend 26 of the disinfection cylinder 24. The disinfection powder in the disinfection cylinder 24 is introduced into the sewage treatment box 91 through the bend 26, where it is fully mixed with the sewage to perform preliminary disinfection of harmful microorganisms and bacteria in the sewage. After disinfection, the sewage is introduced into the detection and sterilization zone 14 through the treatment bend 92. The controller 4 then activates the ultraviolet sterilization lamp 41. The ultraviolet light emitted by the ultraviolet sterilization lamp 41 continuously sterilizes the sewage in the detection and sterilization zone 14, killing harmful microorganisms such as bacteria and viruses in the sewage to ensure that the sewage sterilization meets the standards. The running time of the ultraviolet sterilization lamp 41 is automatically adjusted by the controller 4 based on the cleanliness detection data of the sewage detection sensor 42. When the cleanliness is low, the running time is extended to ensure thorough sterilization and avoid energy waste.

[0053] The backwash cleaning mechanism is used to solve the problem of filter holes 74 clogging that may occur after long-term use of the filter mechanism 7. It is achieved by the backwash cleaning mechanism 6, the controller 4, and the filter mechanism 7 working together. It can quickly clean the filter mechanism without disassembling the equipment, ensuring stable filtration efficiency. The specific working logic is as follows: After long-term operation, some fine impurities may adhere to the inner wall of the filter holes 74, causing the filter holes 74 to become clogged and the filtration efficiency to decrease. The wastewater detection sensor 42 detects the cleanliness of the wastewater and indirectly detects the filtration efficiency by judging the wastewater flow rate. When the filtration efficiency drops to a preset threshold, the controller 4 automatically determines that the fan-shaped filter plate 73 is clogged and sends a signal to start the backwash cleaning mechanism 6, triggering the backwash cleaning process. Staff can also manually start the backwash cleaning process through the controller 4 according to the actual situation to flexibly deal with the clogging problem.

[0054] After the backwash cleaning is started, the controller 4 first controls the fourth solenoid valve 93 to close, stopping the introduction of sewage into the testing and sterilization zone 14, and at the same time controls the second solenoid valve 32 to close, preventing backwash sewage from mixing with qualified sewage; then, the controller 4 controls the third solenoid valve 63 to open, starting the water pump 61. The water pump 61 draws the treated and clean water in the testing and sterilization zone 14 through the suction pipe 62 as the backwash water source, without the need for additional clean water supply, thus saving water resources; after being pressurized by the water pump 61, the clean water is delivered to the hollow box 65 through the water supply pipe 64. The hollow box 65 is rectangular, and its length is adapted to the diameter of the sealing circular plate 71, which can evenly distribute the clean water to multiple spray pipes 66.

[0055] Multiple water spray pipes 66 are evenly distributed on the side of the hollow box 65 near the filter mechanism 7, with the outlets facing the fan-shaped filter plate 73. Pressurized clean water is sprayed out through the water spray pipes 66 at high pressure, forming a dense water flow that directly impacts the surface of the fan-shaped filter plate 73 and the inner wall of the filter holes 74, flushing the blockage impurities attached to the filter holes 74 back into the sewage transfer box 81. At the same time, the controller 4 controls the drive mechanism 5 to run continuously, driving the fan-shaped filter plate 73 to rotate, so that the water spray pipes 66 can perform a comprehensive and uniform backwash cleaning of all the fan-shaped filter plates 73, ensuring no cleaning dead corners and thoroughly removing blockage impurities.

[0056] The wastewater generated by backflushing contains impurities from the backflushing process, which mix with the impurities settled in the wastewater transfer box 81. The controller 4 controls the valve on the drain pipe 13 to open. If the drain pipe is not equipped with a valve, it can be discharged directly. The backflushing wastewater and impurities are discharged from the filter cartridge 1 through the drain pipe 13 and introduced into the construction site sewage discharge pipeline. The backflushing cleaning duration can be adjusted by the controller. After that, the controller 4 shuts off the water pump 61 and the third solenoid valve 63 to stop the backflushing cleaning. At the same time, it closes the drain pipe valve and starts the fourth solenoid valve 93, and the device resumes the normal wastewater treatment process. If the filtration efficiency still does not meet the standard after one backflushing cleaning, the controller 4 can automatically repeat the backflushing process until the filtration efficiency returns to normal.

[0057] After undergoing integrated treatment of "filtration, acid and alkali adjustment, disinfection, and sterilization," the wastewater remains in the detection and sterilization zone 14. The wastewater detection sensor 42 continuously monitors indicators such as the cleanliness, pH, and bacterial content of the wastewater, transmitting the data to the controller 4 in real time. The controller 4 compares the detection data with preset environmental discharge or recycling standards. If all indicators meet the standards, the controller 4 automatically sends a signal to open the second solenoid valve 32 on the outlet pipe 31, allowing the qualified wastewater in the detection and sterilization zone 14 to be discharged through the outlet pipe 31 and connected to the construction site's qualified wastewater collection pipeline or recycling pipeline, such as for building material cleaning or site watering, achieving qualified wastewater discharge or resource recycling. If the wastewater fails to meet the standards, the controller 4 closes the second solenoid valve 32 and restarts the water quality adjustment and sterilization process until the wastewater meets the standards before discharge, preventing environmental pollution caused by the discharge of substandard wastewater.

[0058] After the operation is completed, the staff will turn off the system power, stop the injection of sewage, open the sewage discharge pipe 13 and the impurity discharge pipe 83 to discharge the remaining sewage and impurities in the device; clean the inside of the filter cartridge 1, the fan-shaped filter plate 73, the sewage transfer box 81, the sewage treatment box 91 and other components, and clean the probe of the sewage detection sensor 42 and the lamp tube of the ultraviolet sterilization lamp 41 to avoid the adhesion of impurities affecting the detection and sterilization effect.

[0059] Example 2: Example 2 is the same as Example 1 in the rest, except that: If sewage leakage occurs, check whether the sealing gasket of the sealing plate 3, the sealing ring of the isolation plate 15, and the seals at each opening are damaged, and replace the seals in time; check whether the sealing strips of the sewage transfer box 81 and the sewage treatment box 91 are worn, adjust their positions or replace the sealing strips to ensure a tight seal.

[0060] If the water quality adjustment fails to meet the standards, check whether the wastewater detection sensor 42 is malfunctioning or the probe is contaminated, clean the probe or replace the sensor; check whether the first solenoid valve 27 of the chemical addition mechanism 2 is blocked or cannot be opened and closed normally, clean the solenoid valve or replace it; check whether the dosage of acid water, alkali solution and disinfectant powder is reasonable, adjust the parameters of controller 4 to ensure accurate chemical dosing.

[0061] If the sterilization effect is not satisfactory, check whether the ultraviolet sterilization lamp 41 is damaged or emitting light normally, and replace the damaged ultraviolet sterilization lamp; check whether the lamp tube of the ultraviolet sterilization lamp 41 is covered with dust, and clean the lamp tube; adjust the residence time of the wastewater in the sterilization zone 14 to ensure thorough sterilization.

[0062] If the backwash cleaning effect is poor, check if the suction of the water pump 61 is insufficient and clean the impurities at the inlet of the water pump 61; check if the spray pipe 66 is blocked and clean the spray pipe 66; check if the third solenoid valve 63 cannot be opened normally and clean or replace the solenoid valve; check if the suction pipe 62 is leaking or blocked and repair or clean the suction pipe 62.

[0063] If electrical components malfunction, check the power supply and electrical wiring for poor contact or short circuits, troubleshoot and repair the faults; check if controller 4 is malfunctioning, restart controller 4 or reset the parameters; check if the wiring of each electrical component is loose, tighten the terminals to prevent the fault from escalating.

[0064] All structural shapes, sizes, and materials included in Embodiment 1 in this application can be selected and adjusted to meet specific usage needs. The accompanying drawings are schematic structural diagrams, and the actual dimensions can be appropriately adjusted.

[0065] The above description is only a preferred embodiment of this practice, but the scope of protection of this embodiment is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in this embodiment, based on the technical solution and inventive concept of this embodiment, should be covered within the scope of protection of this embodiment.

Claims

1. A wastewater filter for use in water conservancy construction sites, comprising a filter cylinder (1), wherein the bottom of the filter cylinder (1) is provided with four supporting legs (11), characterized in that, The filter cylinder (1) has an open end and is sealed with a sealing plate (3). A water outlet pipe (31) is provided on the sealing plate (3). A second solenoid valve (32) is provided on the water outlet pipe (31). The filter cylinder (1) also includes: The filtration mechanism (7) is located inside the filter cylinder (1) and is used for wastewater filtration treatment; The sewage transfer mechanism (8) and the sewage treatment mechanism (9) are respectively set on both sides of the filtration mechanism (7) for sewage storage and transfer; The isolation plate (15) is fixedly installed inside the filter cylinder (1), which limits the filter mechanism (7), sewage transfer mechanism (8) and sewage treatment mechanism (9) to the right side of the isolation plate (15). The isolation plate (15) divides the left side of the filter cylinder (1) into the detection and sterilization area (14). The backwash cleaning mechanism (6) is fixedly installed on the lower right side of the isolation plate (15) for backwash cleaning of the filter mechanism (7) and is connected to the testing and sterilization area (14); The drive mechanism (5) is set on the filter cylinder (1) and cooperates with the sewage transfer mechanism (8). The top of the filter cylinder (1) is fixedly installed with an inlet pipe (12), and the bottom of the inlet pipe (12) is located inside the sewage transfer mechanism (8) and cooperates with the drive mechanism (5). The reagent addition mechanism (2) is located on top of the filter cylinder (1) and is connected to the sewage treatment mechanism (9).

2. A wastewater filter for use in water conservancy construction sites according to claim 1, characterized in that, A controller (4) is fixedly installed on the rear side of the sealing plate (3). An ultraviolet sterilization lamp (41) and a sewage detection sensor (42) are connected to the controller (4). The ultraviolet sterilization lamp (41) and the sewage detection sensor (42) are both located in the detection sterilization area (14).

3. A wastewater filter for use in water conservancy construction sites according to claim 2, characterized in that, The filtration mechanism (7) includes a sealing circular plate (71). A sealing ring is fitted on the outer side of the sealing circular plate (71) and it is slidably connected to the inner wall of the filter cylinder (1). Multiple fan-shaped filter holes (72) are opened on the sealing circular plate (71). A fan-shaped filter plate (73) is provided in each of the multiple fan-shaped filter holes (72). The fan-shaped filter plate (73) is flush with the fan-shaped filter holes (72). Multiple filter holes (74) are opened on the fan-shaped filter plate (73). A horn groove (741) is provided near the sewage treatment mechanism (9) of the filter hole (74).

4. A wastewater filter for use in water conservancy construction sites according to claim 3, characterized in that, The sewage transfer mechanism (8) includes a sewage transfer box (81), which is fixedly installed on the inner wall of the filter cylinder (1). A sewage outlet (82) is provided on one side of the sewage transfer box (81), which is in contact with the filter mechanism (7). The bottom of the sewage transfer box (81) is connected to an impurity discharge pipe (83), which is equipped with a manual valve and extends to the outside of the filter cylinder (1).

5. A wastewater filter for use in water conservancy construction sites according to claim 4, characterized in that, The wastewater treatment mechanism (9) includes a wastewater treatment box (91), which is fixedly installed on the inner wall of the filter cylinder (1). A connecting groove (94) is provided on one side of the wastewater treatment box (91), which is in contact with the filter mechanism (7). A treatment bend (92) is fixedly installed on the right side of the wastewater treatment box (91), and a fourth solenoid valve (93) is provided on the treatment bend (92). The treatment bend (92) passes through the isolation plate (15) and extends to the position of the detection sterilization area (14).

6. A wastewater filter for use in water conservancy construction sites according to claim 5, characterized in that, The agent addition mechanism (2) includes a support plate (21). Two support rods (25) are fixedly installed at the bottom of the support plate (21). Both support rods (25) are fixedly installed at the top of the filter cylinder (1). An acid cylinder (22), an alkaline cylinder (23), and a disinfection cylinder (24) are provided at the top of the support plate (21). The bottom of the acid cylinder (22), the alkaline cylinder (23), and the disinfection cylinder (24) are all connected to a bend pipe (26). A first solenoid valve (27) is provided on the bend pipe (26). The bend pipe (26) passes through the filter cylinder (1) and extends into the interior of the sewage treatment box (91).

7. A wastewater filter for use in water conservancy construction sites according to claim 6, characterized in that, Both the sewage transfer box (81) and the sewage treatment box (91) are equipped with sealing strips near the sealing disc (71).

8. A wastewater filter for use in water conservancy construction sites according to claim 7, characterized in that, The drive mechanism (5) includes a drive shaft (51) and a passive shaft (56). Both the drive shaft (51) and the passive shaft (56) are rotatably mounted on the filter cylinder (1) via bearings. The inner end of the drive shaft (51) extends into the sewage transfer box (81) and is fixedly mounted with a water flow plate (52). The water flow plate (52) is located below the inlet pipe (12).

9. A wastewater filter for use in water conservancy construction sites according to claim 8, characterized in that, The drive shaft (51) is fixedly mounted with a first pulley (53) on its outer side. The inner end of the driven shaft (56) is fixedly mounted with a sealing circular plate (71). The outer end of the driven shaft (56) is fixedly mounted with a second pulley (55). The first pulley (53) and the second pulley (55) are connected by the same belt (54) for transmission.

10. A wastewater filter for use in water conservancy construction sites according to claim 9, characterized in that, The backwash cleaning mechanism (6) includes a water pump (61), which is fixedly installed on the right side of the isolation plate (15). The inlet of the water pump (61) is connected to a suction pipe (62), and a third solenoid valve (63) is provided on the suction pipe (62). The suction pipe (62) is connected to the detection sterilization area (14). The outlet of the water pump (61) is connected to a water supply pipe (64), and a hollow box (65) is connected to the water supply pipe (64). Multiple spray pipes (66) are provided on the hollow box (65) near the filter mechanism (7).

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