Sewage green treatment device for highway construction in water source protection area

Abstract

The utility model relates to sewage treatment technical field discloses a kind of sewage green treatment devices for water source protection area highway construction, including cyclone separator, the cyclone separator is water supply by water pump, and water is exported by connecting pipe, the connecting pipe and clear water outlet pipe junction are concentric vertical, and welding is carried out by connecting column and cyclone separator outer wall, connecting pipe and clear water outlet pipe are connected by cylindrical environmental protection filter device, and rotating overturning mechanism is connected outside environmental protection filter device.The utility model is combined design by cyclone separator and environmental protection filter device, realizes the efficient separation and filtration of sewage, the introduction of rotating overturning mechanism makes environmental protection filter device can periodically carry out automatic cleaning, avoids the problem of the decline of processing efficiency caused by filter core blockage, reduces the frequency and operation difficulty of manual replacement filter core in maintenance process, reduces labor cost.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a green wastewater treatment device for highway construction in a water source protection area. Background Technology

[0002] The construction of highways generates a large amount of wastewater, which often contains high levels of silt, suspended solids, and various construction wastes. If this wastewater is discharged directly without effective treatment, it will severely pollute the water quality of water source protection areas, damage the surrounding ecosystem, and affect the survival of aquatic life and the sustainable use of water resources. Especially when highway construction is carried out near water source protection areas, the requirements for wastewater treatment are even more stringent, necessitating the adoption of efficient and environmentally friendly treatment methods to ensure that construction activities do not harm precious water resources.

[0003] Currently, existing wastewater treatment equipment has several shortcomings when applied to highway construction projects within water source protection areas. Some devices with good filtration performance present significant maintenance challenges. After prolonged use, filter cartridges are prone to clogging, requiring frequent manual replacement or cleaning. Manual operation is not only inefficient and increases labor costs, but it is also susceptible to leaks due to loose connections, further impacting wastewater treatment effectiveness. Furthermore, most existing devices cannot achieve fully automated periodic replacement and cleaning of the filter cartridges, failing to meet the high-efficiency, environmentally friendly, and automated wastewater treatment requirements of highway construction within water source protection areas. Utility Model Content

[0004] The purpose of this utility model is to provide a green wastewater treatment device for highway construction in water source protection areas, which solves the problems of inconvenience in maintaining or cleaning filter elements, low efficiency of manual operation, and high labor costs in existing wastewater treatment equipment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A green wastewater treatment device for highway construction in a water source protection area includes a hydrocyclone separator. The hydrocyclone separator is supplied with water by a pump and discharges water through a connecting pipe. The connecting pipe is concentrically vertically connected to a clean water outlet pipe and welded to the outer wall of the hydrocyclone separator via a connecting column. The connecting pipe and the clean water outlet pipe are connected through a cylindrical environmentally friendly filter device. A rotating and tilting mechanism is externally connected to the environmentally friendly filter device. The rotating and tilting mechanism includes a motor base, a motor, a rotating plate, gears, a fixing ring, external gears, and a proximity switch. The motor base is fixed to the outer wall of the clean water outlet pipe, and the motor is vertically mounted on the motor... On the base, the output shaft of the motor is fixedly connected to the center of the horizontal rotating plate. The two ends of the rotating plate are respectively installed on the central shaft of the gears via bearings. The outer ends of the central shafts of the two gears are fixed to the environmental protection filter device. The two filter devices are located in the working position and the cleaning position respectively, and are used alternately. The fixing ring is horizontally fixed on the motor base with the center of the rotating plate as the center. The top part of the fixing ring is provided with symmetrical external teeth, and the gears mesh with the external teeth. The proximity switch is fixed inside the motor base. This device also includes a power distribution box, which is equipped with a PLC controller and electrically connected to the water pump, proximity switch and motor.

[0006] Preferably, the hydrocyclone includes an inlet pipe, an outlet pipe, a slag outlet pipe, and a separation baffle. The inlet pipe is tangentially connected to the upper outer wall of the hydrocyclone. The outlet pipe is located at the center of the hydrocyclone, extending from the bottom to the middle of the hydrocyclone and connecting to a connecting pipe at the top. A slag outlet pipe is provided at the bottom of the hydrocyclone, and a solenoid valve is installed on the slag outlet pipe. The solenoid valve is electrically connected to a PLC controller. An inverted bucket-shaped separation baffle is fixed inside the hydrocyclone below the outlet pipe.

[0007] Preferably, two flexible positioning devices with an included angle of 180° are installed between the gear and the fixed ring around the central axis. The flexible positioning devices are composed of magnets, which are located on the opposite surfaces of the gear and the fixed ring, with the positive or negative poles of the magnets facing each other.

[0008] Preferably, pre-pressure plates are fixed at the opposite ends of the connecting pipe and the clean water outlet pipe.

[0009] Preferably, the environmentally friendly filtration device includes a housing, a telescopic tube, a spring, an outer sealing ring, an inner sealing ring, an environmentally friendly filter element, and a pull-out groove. The housing is a cylindrical structure. Telescopic tubes are installed at both ends of the housing and slide radially within the housing. The telescopic tubes and the housing have the same C-shaped cross-section. A circumferentially distributed spring is provided between the telescopic tube and the outer end of the housing. An outer sealing ring is bonded to the outer end of the telescopic tube. The two outer sealing rings are respectively connected to a connecting pipe and a clean water outlet pipe. An inner sealing ring is fitted onto the outer wall of the telescopic tube and is sealed to the housing. An environmentally friendly filter element is installed at the center of the housing. A pull-out groove is opened in the outer cross-section of the housing for replacing the environmentally friendly filter element.

[0010] Preferably, the environmentally friendly filter element includes a pull-out plate, a filter membrane, a pull-out plate sealing ring, and a handle. The pull-out plate is slidably connected along the pull-out groove. The filter membrane is fixed inside the pull-out plate. The pull-out plate sealing ring is fixed on the outside of the pull-out plate. The handle is integrally formed on the outer end of the pull-out plate.

[0011] Preferably, the filter membrane is made of multi-layer composite fiber material.

[0012] Preferably, a sludge collection bucket is provided below the environmentally friendly filter device at the cleaning location.

[0013] Preferably, a sludge blowing device is provided above the environmentally friendly filter device at the cleaning position. The sludge blowing device includes a support rod, a mounting ring, an air blowing pipe, a small air pump, and a nozzle. The support rod is fixed to the outer wall of the sludge receiving tank, and a horizontal mounting ring is fixed to the top of the support rod. The air blowing pipe is placed on the mounting ring, and the upper end of the air blowing pipe is connected to the small air pump. The lower end is equipped with a nozzle, which faces the position after the environmentally friendly filter device is flipped over.

[0014] The advantages of this utility model compared with the prior art are as follows: 1. This device achieves efficient separation and filtration of wastewater through the combination design of a hydrocyclone separator and an environmental protection filter. The introduction of the rotating and flipping mechanism enables the environmental protection filter to be automatically cleaned periodically, avoiding the problem of reduced treatment efficiency due to filter clogging. At the same time, it reduces the frequency and difficulty of manual filter replacement during maintenance, thereby reducing labor costs. 2. The filter membrane is made of multi-layer composite fiber material, which is a green, environmentally friendly, and renewable material. When replacing the filter membrane, the environmentally friendly filter element can be pulled out through the pull-out groove without disassembling the housing, greatly improving maintenance efficiency. The telescopic tube can automatically return to its original position under the pre-pressure of the spring, and the elastic buffering effect of the spring can also ensure that the outer sealing ring fits tightly with the pipe opening, effectively preventing sewage leakage. 3. The small air pump of the sludge blowing device compresses air and delivers it to the nozzle through the air blowing pipe. The nozzle sprays out a high-pressure airflow, which can effectively blow off the impurities attached to the inner wall of the environmental protection filter, ensuring that the inside of the environmental protection filter is clean and ready for the next filtration. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance structure and water flow direction of Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the internal structure and water flow direction of the cyclone separator in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram showing the connection between the environmentally friendly filter and the rotating and flipping mechanism in Embodiment 1 of this utility model; Figure 4This is a schematic diagram of the proximity switch position in Embodiment 1 of this utility model; Figure 5 This is a top view of the flexible positioning device in Embodiment 2 of this utility model; Figure 6 This is a schematic diagram of the position of the preload plate in Embodiment 3 of this utility model; Figure 7 This is a cross-sectional view of the connection between the pre-compression plate, the connecting pipe, and the clean water outlet pipe in Embodiment 3 of this utility model; Figure 8 This is a top view of the environmentally friendly filtration device in Embodiment 3 of this utility model, showing its rotation direction. Figure 9 This is a cross-sectional schematic diagram of the environmentally friendly filtration device in Embodiment 4 of this utility model; Figure 10 This is a schematic diagram of the connection between the environmentally friendly filter element and the pull-out groove in Embodiment 5 of this utility model; Figure 11 This is a schematic diagram showing the positions of the mud receiving bucket and the mud blowing device in Embodiment 6 of this utility model; Figure 12 This is a front view of the mud receiving bucket and mud blowing device in Embodiment 6 of this utility model; Icons: 1. Hydrocyclone separator; 101. Inlet pipe; 102. Outlet pipe; 103. Slag outlet pipe; 104. Separation baffle; 2. Water pump; 3. Connecting pipe; 4. Environmental filtration device; 401. Shell; 402. Telescopic pipe; 403. Spring; 404. Outer sealing ring; 405. Inner sealing ring; 406. Environmental filter element; 4061. Pull-out plate; 4062. Filter membrane; 4063. Pull-out plate sealing ring; 4064. Handle ; 407. Pull-out trough; 5. Clean water outlet pipe; 6. Rotation and flipping mechanism; 601. Motor base; 602. Motor; 603. Rotating plate; 604. Gear; 605. Fixing ring; 606. External gear; 607. Proximity switch; 608. Flexible positioning device; 609. Pre-pressure plate; 7. Mud receiving bucket; 8. Mud blowing device; 801. Support rod; 802. Mounting ring; 803. Air blowing pipe; 804. Small air pump; 805. Nozzle. Detailed Implementation

[0016] To make the objectives, methods, and advantages of the embodiments of this utility model clearer, the method solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Example 1 like Figure 1-4As shown, a green wastewater treatment device for highway construction in a water source protection area includes a hydrocyclone separator 1. The hydrocyclone separator 1 is supplied with water by a water pump 2 and discharged through a connecting pipe 3. The connecting pipe 3 is concentrically vertically connected to a clean water outlet pipe 5 and welded to the outer wall of the hydrocyclone separator 1 via a connecting column. The connecting pipe 3 and the clean water outlet pipe 5 are connected through a cylindrical environmental protection filter device 4. A rotating and flipping mechanism 6 is externally connected to the environmental protection filter device 4. The rotating and flipping mechanism 6 drives the environmental protection filter device 4 to rotate periodically for replacement or cleaning, ensuring continuous and stable filtration efficiency while preventing filter clogging that could reduce treatment efficiency. The rotating and flipping mechanism 6 includes a motor base 601, a motor 602, a rotating plate 603, a gear 604, a fixing ring 605, an external gear 606, and a proximity switch 607. The motor base 601 is fixed to the outer wall of the clean water outlet pipe 5, and the motor 602 is vertically mounted on the motor base 601. The motor 602's output... The output shaft is fixedly connected to the center of the horizontal rotating plate 603. The two ends of the rotating plate 603 are respectively installed on the central shaft of the gear 604 through bearings. The outer ends of the central shafts of the two gears 604 are fixed to the environmental protection filter device 4. The two filter devices 4 are located in the working position and the cleaning position respectively, and are used alternately. The fixing ring 605 is horizontally fixed on the motor base 601 with the center of the rotating plate 603 as the center. The top part of the fixing ring 605 is provided with symmetrical external teeth 606. The gear 604 meshes with the external teeth 606. When the environmental protection filter device 4 is disconnected from the connecting pipe 3 and the clean water outlet pipe 5, the environmental protection filter device 4 is rotated by the action of the gear 604 and the external teeth 606, and the rotation angle is 180°. The proximity switch 607 is fixed in the motor base 601 and is used to detect the rotation position of the rotating plate 603. This device also includes a power distribution box, which is equipped with a PLC controller and electrically connected to the water pump 2, the proximity switch 607 and the motor 602. The PLC controller can automatically control the start, stop, and rotation direction of motor 602 according to a preset program.

[0018] When the environmental protection filter device 4 needs to be replaced or cleaned, the PLC controller shuts off the water pump 2, so that no water flows in the connecting pipe 3. Then the motor 602 is started. The output shaft of the motor 602 drives the rotating plate 603 to rotate. The gears 604 at both ends of the rotating plate 603 mesh and rotate along the external teeth 606 on the fixed ring 605, thereby causing the environmental protection filter device 4, which is fixed to the outer end of the central shaft of the gear 604, to flip. When proximity switch 607 detects that the rotating plate 603 has rotated to the designated position, it sends a signal to the PLC controller. The PLC controller then controls the motor 602 to stop rotating. At this time, the environmental protection filter 4 has flipped from the working position to the cleaning position. The environmental protection filter 4 in the original cleaning position also flips and rotates back to the working position via gear 604 and external gear 606. When the upper and lower ends of the rotated environmental protection filter 4 are connected to the connecting pipe 3 and the clean water outlet pipe 5, proximity switch 607 detects the position signal of the rotating plate 603. After receiving this signal, the PLC controller will pause the rotation of the motor 602 to ensure the periodic rotation operation of the environmental protection filter 4 for precise connection. This prevents water leakage or reduced treatment efficiency caused by loose connection. At the same time, the water pump 2 is started to perform water treatment. Moreover, the flipping of the environmental protection filter 4 from the working position allows the internal filtered impurities to be poured out for the next use. This realizes the fully automatic periodic replacement and cleaning operation of the environmental protection filter 4, greatly reducing manual operation costs and maintenance convenience, and improving sewage treatment efficiency.

[0019] During deployment, a protective net can be installed outside the device to effectively prevent debris, personnel, and other objects in the construction area from accidentally coming into contact with the device, thus ensuring the safe operation of the device.

[0020] The hydrocyclone separator 1 includes an inlet pipe 101, an outlet pipe 102, a sludge outlet pipe 103, and a separation baffle 104. The inlet pipe 101 is tangentially connected to the upper outer wall of the hydrocyclone separator 1. The outlet pipe 102 is located at the center of the hydrocyclone separator 1, extending from the bottom to the middle of the hydrocyclone separator 1, and its top connects to the connecting pipe 3. The sludge outlet pipe 103 is provided at the bottom of the hydrocyclone separator 1, and a solenoid valve is installed on the sludge outlet pipe 103. The solenoid valve is electrically connected to a PLC controller. An inverted bucket-shaped separation baffle 104 is fixed inside the hydrocyclone separator 1 below the outlet pipe 102. The separation baffle 104 is used to guide heavier particles in the wastewater to settle rapidly along its inner wall and concentrate at the bottom. Specifically, the separation baffle 104 effectively divides the interior of the hydrocyclone 1 into two areas: the upper area is the hydrocyclone separation zone, and the lower area is the sludge storage zone. When wastewater enters the hydrocyclone 1 tangentially from the inlet pipe 101, under the action of centrifugal force, the denser solid particles will quickly sink to the sludge storage zone, while the pre-separated clean water flows upward through the outlet pipe 102 and enters the subsequent environmental filtration device 4 for further treatment. The inverted bucket design allows the sludge to accumulate more concentratedly near the sludge outlet pipe 103, facilitating the smooth discharge of the sludge when the solenoid valve is opened, and preventing the sludge from remaining in the hydrocyclone 1 for a long time and causing secondary pollution. At the same time, the PLC controller can automatically control the opening and closing of the solenoid valve according to the liquid level in the hydrocyclone 1 or the preset sludge discharge time, realizing the timed discharge of sludge, further improving the automation level and operational stability of the entire wastewater green treatment device.

[0021] Example 2 To ensure the environmentally friendly filter device 4 remains positioned during the flipping process and to prevent unnecessary rotation that could cause it to collide with the connecting pipe 3 or the clean water outlet pipe 5, improvements are made based on Example 1, such as... Figure 5 As shown, in this embodiment, two flexible positioning devices 608 with an included angle of 180° are installed between the gear 604 and the fixed ring 605 around the central axis. The flexible positioning devices 608 are composed of magnets, which are respectively located on the opposite surfaces of the gear 604 and the fixed ring 605. The positive or negative poles of the magnets are arranged opposite each other to achieve adsorption positioning, ensuring that the environmental protection filter device 4 can be accurately positioned in the vertical direction during the process of the gear 604 disengaging from the external tooth 606, and preventing angular displacement due to vibration.

[0022] Specifically, when gear 604 meshes with external gear 606, the environmentally friendly filter device 4, after rotating to a designated angle, maintains its position through magnetic attraction. The design of the magnets with opposite polarities eliminates the need for additional power during the positioning process; rapid locking is achieved solely through magnetic attraction, improving the reliability and response speed of the device. Simultaneously, this structure effectively avoids the wear and jamming problems caused by traditional mechanical limiters, extending the equipment's service life. It is particularly suitable for high-frequency, continuous operation scenarios such as highway construction wastewater treatment.

[0023] Example 3 To reduce the risk of seal damage or misalignment caused by contact between the sealing structure of the environmentally friendly filter device 4 and the edges of the connecting pipe 3 and the clean water outlet pipe 5, improvements are made based on Example 2, such as... Figure 6-8 As shown in this embodiment, pre-pressure plates 609 are fixed at the opposite ends of the connecting pipe 3 and the clean water outlet pipe 5, respectively.

[0024] Specifically, the spacing of the pre-pressure plates 609 expands from the inside out. During the rotation process, the environmental protection filter device 4 rotates from the outside to the inside of the pre-pressure plates 609, so that the sealing structure at the top and bottom of the environmental protection filter device 4 can be compressed by the pre-pressure plates 609 in advance when it docks with the connecting pipe 3 and the clean water outlet pipe 5. This avoids the sealing structure from colliding with the edges of the connecting pipe 3 and the clean water outlet pipe 5, causing seal damage or misalignment, and ensures a smooth and reliable docking process.

[0025] Example 4 To effectively prevent sewage leakage at the connection points between the environmentally friendly filter device 4, the connecting pipe 3, and the clean water outlet pipe 5, improvements are made based on Example 3, such as... Figure 9 As shown, in this embodiment, the environmentally friendly filtration device 4 includes a housing 401, a telescopic tube 402, a spring 403, an outer sealing ring 404, an inner sealing ring 405, an environmentally friendly filter element 406, and a pull-out groove 407. The housing 401 has a cylindrical structure, and telescopic tubes 402 are installed at both ends of the housing 401, which slide radially inward. The telescopic tubes 402 and the housing 401 have the same C-shaped cross-section, and a circumferentially distributed groove is provided between the telescopic tubes 402 and the outer ends of the housing 401. The spring 403 applies an axial outward elastic force to the telescopic tube 402. An outer sealing ring 404 is bonded to the outer end of the telescopic tube 402. The two outer sealing rings 404 are respectively connected to the connecting pipe 3 and the clean water outlet pipe 5. An inner sealing ring 405 is sleeved on the outer wall of the telescopic tube 402 and sealed to the housing 401. An environmental protection filter element 406 is installed in the center of the housing 401. A pull-out groove 407 is opened in the outer cross section of the housing 401 for replacing the environmental protection filter element 406.

[0026] Specifically, during replacement, the environmental filter element 406 is pulled out radially via the pull-out groove 407 without disassembling the housing 401, significantly improving maintenance efficiency. The telescopic tube 402 automatically returns to its original position under the pre-pressure of the spring 403, reducing the difficulty of connecting it to the connecting pipe 3 and the clean water outlet pipe 5. Even with slight installation deviations, the elastic buffering effect of the spring 403 ensures a tight fit between the outer sealing ring 404 and the pipe opening, effectively preventing sewage leakage. Meanwhile, the inner sealing ring 405, made of highly wear-resistant rubber, is press-fitted against the inner wall of the housing 401, forming a double-sealing structure, further enhancing the sealing reliability of the device.

[0027] Example 5 To make the replacement of the environmentally friendly filter element 406 more efficient and convenient, improvements were made based on Example 4, such as... Figure 10As shown, in this embodiment, the environmentally friendly filter element 406 includes a pull-out plate 4061, a filter membrane 4062, a pull-out plate sealing ring 4063, and a handle 4064. The pull-out plate 4061 is slidably connected along the pull-out groove 407. The filter membrane 4062 is fixed inside the pull-out plate 4061. The pull-out plate sealing ring 4063 is fixed on the outer side of the pull-out plate 4061. The handle 4064 is integrally formed on the outer end of the pull-out plate 4061.

[0028] The filter membrane 4062 is made of multi-layer composite fiber material, which is a green, environmentally friendly and renewable material. It can be completely degraded in the natural environment within 1-3 months after disposal. It has high filtration accuracy and dirt holding capacity, and can effectively intercept small particles and suspended solids in sewage. At the same time, it maintains low water flow resistance, which can not only efficiently filter muddy water and adsorb heavy metal ions in muddy water, but also reduce environmental impact.

[0029] Specifically, the pull-out plate 4061 allows operators to quickly pull out and replace the filter using the handle 4064. The pull-out plate sealing ring 4063 is made of silicone, forming an elastic seal with the inner wall of the pull-out groove 407 to prevent unfiltered wastewater from bypassing the filter membrane 4062 and flowing out directly, ensuring treatment effectiveness. The handle 4064 has a non-slip texture, providing a stable grip even in wet environments, improving operational safety when replacing the environmental filter element 406. This structure makes the maintenance of the environmental filter element 406 more convenient and efficient, requiring only seconds to complete replacement, significantly improving replacement efficiency, and is particularly suitable for the needs of continuous operation at construction sites.

[0030] Example 6 To prevent impurities from scattering onto the ground and causing secondary pollution after the environmentally friendly filter device 4 is flipped over, and to more thoroughly clean the impurities adhering to the inner wall of the environmentally friendly filter device 4, improvements are made based on embodiment 5, such as... Figure 11-12 As shown in this embodiment, in order to prevent impurities from scattering on the ground and causing secondary pollution after the environmental protection filter device 4 is flipped over to pour out the impurities, and to clean up some of the impurities attached to the inner wall of the device, a mud receiving bucket 7 is provided below the environmental protection filter device 4 at the cleaning position. This ensures that the impurities can fall accurately into the bucket when the environmental protection filter device 4 is flipped over, and that the impurities will not splash out due to the position deviation of the mud receiving bucket 7.

[0031] Specifically, the sludge collection bucket 7 is made of high-strength plastic, which is corrosion-resistant and impact-resistant, and can withstand the impact of sewage and impurities for a long time without damage. Its capacity is reasonably designed to hold most of the impurities poured out after the environmental filter device 4 is tilted, preventing impurities from scattering onto the ground and causing secondary pollution. The bottom of the sludge collection bucket 7 is equipped with a drain outlet connected to a flexible hose, which can discharge the small amount of residual sewage in the bucket to a designated treatment area, preventing sewage accumulation that could produce odors or breed bacteria.

[0032] A mud blowing device 8 is installed above the environmental protection filter device 4 at the cleaning location. The mud blowing device 8 includes a support rod 801, a mounting ring 802, an air blowing pipe 803, a small air pump 804, and a nozzle 805. The support rod 801 is fixed to the outer wall of the mud receiving tank 7. A horizontal mounting ring 802 is fixed to the top of the support rod 801. The air blowing pipe 803 is placed on the mounting ring 802. The upper end of the air blowing pipe 803 is connected to the small air pump 804. The small air pump 804 is electrically connected to the PLC controller. The lower end is equipped with a nozzle 805, which faces the position after the environmental protection filter device 4 is flipped over.

[0033] Specifically, after motor 602 starts, when proximity switch 607 senses the rotating plate 603 again, and the environmental protection filter device 4 rotates into position, the PLC controller starts the small air pump 804. The small air pump 804 operates for 5-10 seconds as preset by the PLC controller, ensuring purging effectiveness while avoiding energy waste and reducing noise issues that may arise from prolonged operation. The small air pump 804 compresses air and delivers it to the nozzle 805 through the air pipe 803. The nozzle 805 sprays out a high-pressure airflow, effectively blowing off impurities adhering to the inner wall of the environmental protection filter device 4, ensuring the inside of the environmental protection filter device 4 is clean and ready for the next filtration.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A green wastewater treatment device for highway construction in a water source protection area, characterized in that, Includes a hydrocyclone separator (1), which is supplied with water by a water pump (2) and discharged through a connecting pipe (3). The connection between the connecting pipe (3) and the clean water outlet pipe (5) is concentric and vertical. It is welded to the outer wall of the hydrocyclone separator (1) through a connecting column. The connecting pipe (3) and the clean water outlet pipe (5) are connected through a cylindrical environmental protection filter device (4). The environmental protection filter device (4) is externally connected to a rotating and flipping mechanism (6). The rotating and flipping mechanism (6) includes a motor base (601), a motor (602), a rotating plate (603), a gear (604), a fixing ring (605), an external gear (606), and a proximity switch (607). The motor base (601) is fixed to the outer wall of the clean water outlet pipe (5). The motor (602) is vertically mounted on the motor base (601). The output shaft of the motor (602) is fixedly connected to the center of the horizontal rotating plate (603). Both ends of the rotating plate (603) are connected to the gear (604) via bearings. The central shaft of the gears (604) is installed, and the outer ends of the central shafts of the two gears (604) are fixed to the environmental protection filter device (4). The two environmental protection filter devices (4) are located in the working position and the cleaning position respectively, and are used alternately. The fixing ring (605) is horizontally fixed on the motor base (601) with the center of the rotating plate (603) as the center. The top surface of the fixing ring (605) is provided with symmetrical external teeth (606). The gears (604) mesh with the external teeth (606). The proximity switch (607) is fixed inside the motor base (601). The device also includes a distribution box, which is equipped with a PLC controller and is electrically connected to the water pump (2), proximity switch (607) and motor (602).

2. The green wastewater treatment device for highway construction in a water source protection area according to claim 1, characterized in that, The hydrocyclone separator (1) includes an inlet pipe (101), an outlet pipe (102), a slag outlet pipe (103), and a separation baffle (104). The inlet pipe (101) is tangentially connected to the upper outer wall of the hydrocyclone separator (1). The outlet pipe (102) is located at the center of the hydrocyclone separator (1), extends to the middle of the hydrocyclone separator (1) at the bottom, and is connected to the connecting pipe (3) at the top. The bottom of the hydrocyclone separator (1) is provided with a slag outlet pipe (103), and a solenoid valve is installed on the slag outlet pipe (103). The solenoid valve is electrically connected to the PLC controller. The inside of the hydrocyclone separator (1) below the outlet pipe (102) is fixed with an inverted bucket-shaped separation baffle (104).

3. A green wastewater treatment device for highway construction in a water source protection area according to claim 2, characterized in that, Two flexible positioning devices (608) with an included angle of 180° are installed between the gear (604) and the fixed ring (605) around the central axis. The flexible positioning devices (608) are composed of magnets, which are located on the opposite surfaces of the gear (604) and the fixed ring (605), with the positive or negative poles of the magnets facing each other.

4. A green wastewater treatment device for highway construction in a water source protection area according to claim 3, characterized in that, The connecting pipe (3) and the clean water outlet pipe (5) are respectively fixed with pre-pressure plates (609).

5. A green wastewater treatment device for highway construction in a water source protection area according to claim 4, characterized in that, The environmental protection filtration device (4) includes a housing (401), a telescopic tube (402), a spring (403), an outer sealing ring (404), an inner sealing ring (405), an environmental protection filter element (406), and a pull-out groove (407). The housing (401) is a cylindrical structure. Telescopic tubes (402) are installed at both ends of the housing (401) and slide radially along the inside. The telescopic tubes (402) and the housing (401) have the same C-shaped cross-section. A space is provided between the telescopic tubes (402) and the outer end of the housing (401). There are circumferentially distributed springs (403), and an outer sealing ring (404) is bonded to the outer end of the telescopic tube (402). The two outer sealing rings (404) are respectively connected to the connecting pipe (3) and the clean water outlet pipe (5). An inner sealing ring (405) is sleeved on the outer wall of the telescopic tube (402) and sealed to the housing (401). An environmental protection filter element (406) is installed in the center of the housing (401). A pull-out groove (407) is opened in the outer cross section of the housing (401) for replacing the environmental protection filter element (406).

6. A green wastewater treatment device for highway construction in a water source protection area according to claim 5, characterized in that, The environmentally friendly filter element (406) includes a pull plate (4061), a filter membrane (4062), a pull plate sealing ring (4063), and a handle (4064). The pull plate (4061) is slidably connected along the pull groove (407). The filter membrane (4062) is fixed inside the pull plate (4061). The pull plate sealing ring (4063) is fixed on the outside of the pull plate (4061). The handle (4064) is integrally formed on the outer end of the pull plate (4061).

7. A green wastewater treatment device for highway construction in a water source protection area according to claim 6, characterized in that, The filter membrane (4062) is made of multi-layer composite fiber material.

8. A green wastewater treatment device for highway construction in a water source protection area according to claim 7, characterized in that, A mud collection bucket (7) is installed below the environmentally friendly filter device (4) at the cleaning location.

9. A green wastewater treatment device for highway construction in a water source protection area according to claim 8, characterized in that, A mud blowing device (8) is installed above the environmental protection filter device (4) at the cleaning location. The mud blowing device (8) includes a support rod (801), an mounting ring (802), an air blowing pipe (803), a small air pump (804), and a nozzle (805). The support rod (801) is fixed to the outer wall of the mud receiving bucket (7). A horizontal mounting ring (802) is fixed at the top of the support rod (801). The air blowing pipe (803) is placed on the mounting ring (802). The upper end of the air blowing pipe (803) is connected to the small air pump (804), and the lower end is equipped with a nozzle (805). The nozzle (805) faces the position after the environmental protection filter device (4) is flipped.

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