Building wastewater treatment device with self-cleaning function

Abstract

The invention discloses a construction wastewater treatment device with a self-cleaning function, and relates to the technical field of construction wastewater treatment.The construction wastewater treatment device comprises a tank body, a controller, a neutralization unit and a precipitation unit, the neutralization unit is provided with a stirring assembly, a filler assembly and a detection assembly, and the detection assembly indirectly calculates the pH value by detecting wastewater tension; the stirring assembly drives the reflux assembly through the magnetic transmission unit to realize circular treatment of the wastewater between the neutralization unit and the precipitation unit, and a detection assembly is also arranged in the precipitation unit and is used for monitoring the treatment effect and triggering reflux secondary treatment. The system has the functions of pH intelligent adjustment, wastewater circulation treatment and self-cleaning, is suitable for complex wastewater environments such as construction sites, and has the advantages of high treatment efficiency, low maintenance cost, stable operation and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building wastewater treatment, and particularly relates to a building wastewater treatment device with a self-cleaning function. BACKGROUND

[0002] The existing building wastewater is usually faced with many problems in treatment. On the one hand, the building wastewater has complex components and contains a large amount of silt, suspended matter, acid-base substances and various chemical additives, which makes it difficult for the traditional treatment method to achieve the ideal purification effect. In some construction sites, the acid-base degree of the wastewater fluctuates greatly, and it is difficult to accurately adjust the pH value of the wastewater to the appropriate range by simply relying on neutralization treatment, so that the treated wastewater still does not meet the discharge standard. On the other hand, the existing treatment device lacks effective self-cleaning function, and a large amount of dirt and impurities can easily accumulate in the device during long-term operation, which not only affects the treatment efficiency of the device, but also shortens the service life of the device. For example, if the silt and precipitates accumulated in the sedimentation unit are not cleaned in time, the pipes and equipment will be blocked, increasing the maintenance cost and downtime. And reference, the patent document with publication number (CN219058640U) provides a building engineering wastewater treatment equipment, which is similar to the traditional wastewater treatment method, mainly removes impurities in wastewater by sedimentation and filtration, but the equipment has limited treatment effect when dealing with building wastewater with complex components, especially for wastewater with large fluctuation of acid-base degree, accurate pH value adjustment cannot be performed, and the equipment also does not have self-cleaning function, and dirt can easily accumulate in the interior after long-term use, affecting the treatment efficiency and service life. SUMMARY

[0003] The present application aims to provide a building wastewater treatment device with a self-cleaning function to solve the problems in the prior art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a building wastewater treatment device with a self-cleaning function, comprising a tank body and a controller, characterized in that: a neutralization unit and a sedimentation unit are arranged inside the tank body. The neutralization unit is installed above the sedimentation unit through a plurality of channels. A liquid inlet is arranged on the neutralization unit, a discharge port and a liquid outlet are arranged on the sedimentation unit, and a stirring assembly, a filler assembly and a detection assembly are arranged on the neutralization unit. A reflux assembly is arranged between the sedimentation unit and the neutralization unit, and a detection assembly is also arranged inside the sedimentation unit, and the controller is electrically connected with the stirring assembly, the filler assembly and the detection assembly. A transmission unit is installed between the stirring assembly and the reflux assembly; The packing assembly adds a neutralizing agent to the neutralization unit to balance the acid-base balance of the wastewater according to the current pH value of the wastewater. The greater the deviation of the detection medium's pH value from neutral, the greater the stirring power of the stirring component.

[0005] Furthermore, the detection component indirectly calculates the pH value of the wastewater by detecting the surface tension of the wastewater.

[0006] Furthermore, several sets of the detection components are respectively installed inside the neutralization unit and the precipitation unit.

[0007] Furthermore, the detection component includes a detection tube, which contains a stretching unit, a liquid level sensing unit, and a tension detection unit. The liquid level sensing unit detects the position of the tension detection unit to determine the liquid level of the wastewater, and the stretching unit pulls the tension detection unit to detect the tension of the wastewater.

[0008] Furthermore, the detection tube is provided with a groove, the tension detection unit includes a detection plate, the detection plate is slidably installed inside the groove, the detection plate is provided with a metal sheet inside, the metal sheet is magnetic, and the density of the detection plate is less than that of water; The liquid level sensing unit can sense the liquid level of wastewater, and the liquid level sensing unit can detect the position of the sensing plate. The tensioning unit includes a detection cylinder, a tension detector is installed at the output end of the detection cylinder, an electromagnet is installed at the output end of the tension detector, the tension detector is electrically connected to the controller via a wire, the detection cylinder pulls the detection plate through the electromagnet, and the tension detector provides feedback on the tension of the detection plate leaving the water surface.

[0009] Furthermore, the detection board is a foam board or a pine board, and the detection board is encapsulated with an anti-corrosion film.

[0010] Furthermore, the transmission unit includes a drive disk and a mating disk. The drive disk is connected to the stirring assembly, and the mating disk is connected to the reflux assembly. Magnets are respectively provided on the drive disk and the mating disk, and the magnets on the drive disk and the mating disk attract each other.

[0011] Furthermore, the stirring assembly includes a stirring rod and a driving device, the driving device being connected to the stirring rod, the driving disc being installed at the bottom of the stirring rod, and multiple sets of mixing components being installed on the stirring rod; The mixing component includes a support rod and multiple sets of dispersing rods. The support rod is equidistantly mounted on the stirring rod, and multiple sets of dispersing rods are mounted on the support rod. The multiple sets of dispersing rods are respectively mounted on the support rod through a transmission component.

[0012] Furthermore, the reflux assembly includes a reflux pipe, a reflux rod is installed inside the reflux pipe, two sets of limiting rings are installed between the reflux rod and the reflux pipe, and reflux vanes are installed at equal intervals on the reflux rod between the two sets of limiting rings.

[0013] Furthermore, the packing assembly includes packing pipes, and a sealing device is installed between the packing pipes. The sealing device can close or open the packing pipes, and acidic neutralizing reagents and alkaline neutralizing reagents are respectively stored above different packing assemblies.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This system indirectly calculates pH values ​​by detecting the surface tension of wastewater, replacing traditional, easily contaminated pH sensors. The detection components include a detection plate, electromagnet, and tension detector. Combined with level sensing and tension measurement, it achieves long-term, stable, and accurate pH monitoring, suitable for complex construction wastewater environments. 2. A magnetic drive unit is used between the stirring component and the reflux component to achieve non-contact power transmission, avoid mechanical wear and jamming, and realize synchronous operation of stirring and reflux, thereby improving the efficiency of wastewater recycling. 3. The device can automatically adjust the amount of neutralizing reagent and the stirring intensity according to the real-time pH detection results, and realize the secondary treatment of wastewater that does not meet the standards through the reflux component. When the reflux component is running in reverse, the self-cleaning valve can be opened to realize automatic internal cleaning, reducing the frequency of maintenance and operating costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the isometric structure of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the planar structure of the present invention; Figure 4 This is a cross-sectional view of the detection component of the present invention; Figure 5 For the present invention Figure 4 An enlarged view of point "A" in the diagram; Figure 6 For the present invention Figure 2 An enlarged view of section "B" in the middle; Figure 7 For the present invention Figure 2 An enlarged view of point "C" in the middle; Figure 8 For the present invention Figure 2 An enlarged diagram of the "D" in the middle.

[0016] In the diagram: 1. Tank; 11. Neutralization unit; 12. Sedimentation unit; 2. Stirring assembly; 21. Stirring rod; 22. Mixing component; 3. Packing assembly; 31. Packing pipe; 4. Detection assembly; 41. Detection tube; 42. Detection plate; 43. Detection cylinder; 44. Tensile detector; 45. Electromagnet; 5. Reflux assembly; 51. Reflux pipe; 52. Reflux rod; 6. Transmission unit; 61. Drive disc; 62. Matching disc; 7. Controller. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example: Figures 1-8 As shown, the present invention provides a technical solution for a construction wastewater treatment device with self-cleaning function, including a tank 1 and a controller 7. The tank 1 is provided with a neutralization unit 11 and a sedimentation unit 12. Neutralization unit 11 is installed above precipitation unit 12 via several channels; The neutralization unit 11 is provided with a liquid inlet, the sedimentation unit 12 is provided with a discharge outlet and a liquid outlet, and the neutralization unit 11 is provided with a stirring assembly 2, a packing assembly 3 and a detection assembly 4. A reflux assembly 5 is provided between the sedimentation unit 12 and the neutralization unit 11. A detection assembly 4 is also provided inside the sedimentation unit 12. The controller 7 is electrically connected to the stirring assembly 2, the packing assembly 3 and the detection assembly 4 respectively. A transmission unit 6 is installed between the stirring assembly 2 and the reflux assembly 5; The packing assembly 3 adds a neutralizing agent to the neutralization unit 11 to balance the acid and alkali of the waste liquid according to the current pH value of the wastewater. The greater the deviation of the pH value of the detection medium from neutrality by the detection component 4, the greater the stirring power of the stirring component 2; When the device is in use, construction wastewater is first injected into the neutralization unit 11 through the inlet. After the wastewater enters the neutralization unit 11, the detection component 4 will quickly detect the pH value of the wastewater. If the pH value of the wastewater deviates from neutrality, the controller 7 receives the signal from the detection component 4 and will add neutralizing reagent according to the degree of pH value deviation from neutrality, and adjust the stirring power of the stirring component 2. At the same time, the packing component 3 will accurately add an appropriate amount of neutralizing reagent into the neutralization unit 11 according to the detected pH value of the wastewater, so as to promote the acid-base balance of the waste liquid. During the operation of the stirring component 2, the transmission unit 6 will transmit the power of the stirring component 2 to the reflux component 5, so that the reflux component 5 will start to operate. The reflux component 5 can transport part of the liquid in the sedimentation unit 12 back to the neutralization unit 11 to realize the recycling treatment of wastewater and further improve the wastewater treatment effect. After the wastewater in the neutralization unit 11 is fully neutralized, it flows into the sedimentation unit 12 through the channel. In the sedimentation unit 12, the impurities and sediments in the wastewater will gradually settle to the bottom, while the liquid that has undergone preliminary purification will remain on the upper layer. The detection component 4 in the sedimentation unit 12 will monitor the various indicators of the liquid in real time. If it is found that some indicators of the liquid still do not meet the discharge standards, the controller 7 will control the return component 5 to return the liquid to the neutralization unit 11 for secondary treatment. The impurities and sediments after sedimentation will be discharged through the discharge port, while the liquid that meets the standards will be discharged from the device through the liquid outlet, thus completing the entire construction wastewater treatment process.

[0019] like Figure 2 , Figures 4-5 As shown, in this embodiment, specifically, the detection component 4 indirectly calculates the pH value of the wastewater by detecting the magnitude of the wastewater tension; This device indirectly calculates pH value by using detection component 4 to detect the surface tension of wastewater. This avoids the problems of traditional pH sensors being easily contaminated and aging quickly, greatly extending the service life of the detection equipment and ensuring the accuracy of the detection data. In the process of wastewater treatment, construction wastewater often contains a large amount of suspended solids, silt and other impurities. These impurities can easily adhere to the pH sensor, affecting its detection accuracy and service life. However, the detection component 4 of this device indirectly calculates the pH value by detecting changes in the surface tension of wastewater. It is not directly affected by these impurities and can obtain the pH value information of wastewater more stably and accurately.

[0020] like Figures 2-3 As shown, in this embodiment, specifically, several sets of detection components 4 are respectively installed inside the neutralization unit 11 and the precipitation unit 12; Because the neutralization unit 11 and sedimentation unit 12 of this device are each equipped with a detection component 4, it can comprehensively and accurately monitor different stages of wastewater treatment. In the neutralization unit 11, the detection component 4 monitors the pH value of the wastewater in real time, providing a basis for the accurate addition of neutralizing reagent by the packing component 3, ensuring the efficient neutralization reaction. In the sedimentation unit 12, the detection component 4 monitors various indicators of the pre-purified liquid. If any non-compliance is found, it can promptly feed back to the controller 7, so that the reflux component 5 can be activated for secondary treatment. At the same time, the arrangement of the detection components 4 is also carefully designed. Several groups of detection components 4 are distributed in different positions inside the neutralization unit 11 and sedimentation unit 12, which can obtain more comprehensive wastewater information. In this way, both the overall condition of the wastewater and the subtle changes in local areas can be detected and dealt with in a timely manner. In addition, the method of indirectly calculating the pH value by detecting the surface tension of the wastewater by the detection component 4 not only solves the shortcomings of traditional pH sensors, but also makes the operation of the entire device more stable and reliable. In the long-term wastewater treatment process, it can continuously and accurately provide data, providing a strong guarantee for the efficient and environmentally friendly operation of building wastewater treatment.

[0021] like Figure 4 As shown, in this embodiment, specifically, the detection component 4 includes a detection tube 41, which is equipped with a stretching unit, a liquid level sensing unit, and a tension detection unit. The liquid level sensing unit detects the position of the tension detection unit to determine the liquid level of the wastewater, and the stretching unit pulls the tension detection unit to detect the tension of the wastewater. The detection component 4 of the device mainly consists of a detection tube 41, a tension unit, a liquid level sensing unit, and a tension detection unit. The detection tube 41 provides a relatively stable detection environment for the entire detection component 4, avoiding interference from external factors on the detection results. The tension unit plays a key role in the detection process. It can pull the tension detection unit according to a preset program to make it fully contact the wastewater, thereby accurately detecting the tension of the wastewater. The liquid level sensing unit constantly monitors the position of the tension detection unit to determine the liquid level of the wastewater.

[0022] like Figures 4-5 As shown, in this embodiment, specifically, a groove is provided inside the detection tube 41, and the tension detection unit includes a detection plate 42. The detection plate 42 is slidably installed inside the groove, and a metal sheet is provided inside the detection plate 42. The metal sheet is magnetic, and the density of the detection plate 42 is less than that of water. The liquid level sensing unit can sense the liquid level of wastewater, and the liquid level sensing unit can sense the position of the sensing detection plate 42. The tension unit includes a detection cylinder 43, a tension detector 44 is installed at the output end of the detection cylinder 43, an electromagnet 45 is installed at the output end of the tension detector 44, the tension detector 44 is electrically connected to the controller 7 through a wire, the detection cylinder 43 pulls the detection plate 42 through the electromagnet 45, and the tension detector 44 provides feedback on the tension of the detection plate 42 leaving the water surface; When the detection component 4 is in use, the detection cylinder 43 starts operating. The electromagnet 45 at its output end is energized under the control of the controller 7, generating magnetism. Because the metal sheet inside the detection plate 42 is magnetic, the electromagnet 45 attracts the detection plate 42. At this time, the detection plate 42, which was originally floating on the wastewater surface, is attracted by the electromagnet 45, causing the detection cylinder 43 to gradually contract, pulling the detection plate 42 out of the water surface. During this process, the tension detector 44 provides real-time feedback on the tension generated when the detection plate 42 leaves the water surface. The tension detector 44 is electrically connected to the controller 7 via wires, quickly transmitting the detected tension data to the controller 7. After receiving the tension data, the controller 7 converts the tension data into the pH value of the wastewater according to a pre-set algorithm and relevant parameters. Simultaneously, the liquid level sensing unit continuously monitors the wastewater level. As wastewater is continuously injected into the neutralization unit 11 or sedimentation unit 12, the liquid level gradually rises. When the liquid level sensing unit detects that the liquid level has reached the preset standard, it immediately transmits a signal to the controller 7. Upon receiving the signal, the controller 7 promptly stops the injection operation to ensure the accuracy and stability of the detection process. This working method of the detection component 4 makes the entire wastewater treatment process more scientific and efficient. In the neutralization unit 11, by accurately detecting the pH value of the wastewater, the packing component 3 can more precisely add an appropriate amount of neutralizing reagent into the neutralization unit 11, further improving the neutralization reaction effect and enabling the wastewater to reach acid-base balance more quickly. In the sedimentation unit 12, pH value detection of the pre-purified liquid can promptly detect whether there are still abnormal acidity or alkalinity conditions in the liquid, so that timely measures can be taken to adjust them.

[0023] like Figures 4-5 As shown, in this embodiment, specifically, the detection plate 42 is a foam board or a pine board, and the detection plate 42 is encapsulated with an anti-corrosion film. Because the detection plate 42 of the device is made of foam board or pine board, it has many characteristics suitable for wastewater treatment detection. Both foam board and pine board have a density less than water, which allows the detection plate 42 to float stably on the surface of wastewater, ensuring that it is always in full contact with wastewater during the detection process. This provides a basis for accurately detecting the surface tension of wastewater. Moreover, these two materials are relatively soft and will not cause significant disturbance to the original state of wastewater when in contact with it, thus ensuring the authenticity and reliability of the detection data. The externally encapsulated anti-corrosion film further enhances the performance of the detection plate 42. Construction wastewater often contains various corrosive substances, such as acids, alkalis, and salts. These substances can corrode the detection plate 42, affecting its service life and detection accuracy. The anti-corrosion film acts as a strong protective barrier, effectively preventing these corrosive substances from directly contacting the detection plate 42, greatly reducing the risk of corrosion of the detection plate 42, thereby reducing the frequency of replacement of the detection plate 42 and lowering the cost of use.

[0024] like Figure 2 and Figure 6 As shown, in this embodiment, specifically, the transmission unit 6 includes a drive disk 61 and a mating disk 62. The drive disk 61 is connected to the stirring assembly 2, and the mating disk 62 is connected to the reflux assembly 5. Magnets are respectively provided on the drive disk 61 and the mating disk 62, and the magnets on the drive disk 61 and the mating disk 62 attract each other. The transmission unit 6 of this device can transmit the force of the stirring component 2 to the return component 5. In specific use, when the stirring component 2 starts to stir the wastewater in the neutralization unit 11, the drive disk 61 connected to the stirring component 2 will rotate accordingly. Since the drive disk 61 and the mating disk 62 are respectively provided with magnets that attract each other, the rotation of the drive disk 61 will drive the mating disk 62 to rotate through magnetic attraction. The mating disk 62 is connected to the return component 5, so that the return component 5 also starts to operate, and sends part of the liquid in the sedimentation unit 12 back to the neutralization unit 11 to realize the recycling of wastewater. This transmission method cleverly utilizes magnetic force, avoiding the wear and jamming problems that may occur in traditional mechanical transmission, and improving the stability and reliability of the device operation.

[0025] like Figures 2-3 and Figure 7 As shown, in this embodiment, specifically, the stirring assembly 2 includes a stirring rod 21 and a driving device. The driving device is connected to the stirring rod 21. A driving disk 61 is installed at the bottom of the stirring rod 21. Multiple sets of mixing components 22 are installed on the stirring rod 21. The mixing component 22 includes a support rod and multiple sets of dispersing rods. The support rod is equidistantly mounted on the stirring rod 21, and multiple sets of dispersing rods are mounted on the support rod. The multiple sets of dispersing rods are respectively mounted on the support rod through a transmission component. When the stirring assembly 2 is in use, the drive device will drive the stirring rod 21 to rotate, and the multiple mixing components 22 installed on the stirring rod 21 will also rotate accordingly. The support rods of the mixing components 22 are evenly distributed on the stirring rod 21, providing a stable support structure for the dispersing rod. The dispersing rod is installed on the support rod through the transmission component. During the stirring process, the dispersing rod can flexibly agitate the wastewater. As the stirring rod 21 rotates, the mixing components 22 begin to play their important role. On the one hand, it can fully disperse the added neutralizing reagent, so that the neutralizing reagent can contact the wastewater more evenly, accelerate the neutralization reaction, and thus more effectively reduce the pH value of the wastewater, allowing the wastewater to reach acid-base balance more quickly. On the other hand, the mixing components 22 can also disperse the particulate matter in the wastewater, preventing the particulate matter from agglomerating and affecting the sedimentation effect.

[0026] like Figure 2 As shown, in this embodiment, specifically, the reflux assembly 5 includes a reflux pipe 51, a reflux rod 52 is installed inside the reflux pipe 51, two sets of limiting rings are installed between the reflux rod 52 and the reflux pipe 51, and reflux vanes are installed at equal intervals on the reflux rod 52 between the two sets of limiting rings. When in use, the reflux assembly 5 can reflux the wastewater in the sedimentation tank. Specifically, the reflux pipe 51 rotates rapidly under the drive of the stirring assembly 2 through the transmission unit 6. Since the reflux pipe 51 is equipped with a reflux rod 52, and there are two sets of limiting rings between the reflux rod 52 and the reflux pipe 51, and reflux vanes are installed at equal intervals on the reflux rod 52 between the limiting rings, these reflux vanes will generate sufficient centrifugal force during the rotation of the reflux pipe 51. With this centrifugal force, the reflux pipe 51 can carry the wastewater or particulate matter in the sedimentation unit 12 and return it to the neutralization unit 11 through the reflux pipe 51 for secondary neutralization treatment. This reflux treatment method can further reduce the pH value of the wastewater, making the acidity and alkalinity of the wastewater closer to the ideal treatment standard. During the secondary neutralization process, the packing component 3 can accurately add an appropriate amount of neutralizing reagent to the neutralization unit 11 based on the pH value fed back by the detection component 4, further treating the incompletely neutralized wastewater and improving the thoroughness of the neutralization reaction. At the same time, the refluxed particles are stirred and mixed again in the neutralization unit 11, which can also better participate in the neutralization reaction and reduce the content of harmful substances in the wastewater. When the stirring assembly 2 is driven in reverse, the valve on the return pipe 51 for self-cleaning will also open, so that the cleaning liquid can self-clean the return assembly 5 from top to bottom or from bottom to top.

[0027] like Figures 1-2 and Figure 8As shown, in this embodiment, specifically, the packing assembly 3 includes a packing pipe 31, and a sealing device is installed between the packing pipes 31. The sealing device can close or open the packing pipes 31. Acidic neutralizing reagent and alkaline neutralizing reagent are stored on top of different packing assemblies 3 respectively. The packing assembly 3 can precisely control the amount of neutralizing reagent added based on the pH value fed back by the detection assembly 4. When the detection assembly 4 detects that the pH value of the wastewater in the neutralization unit 11 or the sedimentation unit 12 deviates from the ideal range, it will transmit a signal to the controller 7. After receiving the signal, the controller 7 will issue an instruction to the sealing device according to the preset program and algorithm. If the wastewater is acidic, the sealing device will open, allowing the acidic neutralizing reagent above to flow into the corresponding unit through the packing pipe 31. If the wastewater is alkaline, the channel for adding alkaline neutralizing reagent will be opened according to the specific situation.

[0028] Working principle: When using this device, construction wastewater is first injected into the neutralization unit 11 through the inlet. After the wastewater enters the neutralization unit 11, the detection component 4 will quickly detect the pH value of the wastewater. If the pH value of the wastewater deviates from neutrality, the controller 7 receives the signal from the detection component 4 and will add neutralizing reagent according to the degree of pH value deviation from neutrality, and adjust the stirring power of the stirring component 2. At the same time, the packing component 3 will accurately add an appropriate amount of neutralizing reagent into the neutralization unit 11 according to the detected pH value of the wastewater, so as to promote the acid-base balance of the wastewater. During the operation of the stirring component 2, the transmission unit 6 will transmit the power of the stirring component 2 to the reflux component 5, so that the reflux component 5 will start to operate. The reflux component 5 can transport part of the liquid in the sedimentation unit 12 back to the neutralization unit 11 to realize the recycling treatment of wastewater and further improve the wastewater treatment effect. After the wastewater in the neutralization unit 11 is fully neutralized, it flows into the sedimentation unit 12 through the channel. In the sedimentation unit 12, the impurities and sediments in the wastewater will gradually settle to the bottom, while the liquid that has undergone preliminary purification will remain on the upper layer. The detection component 4 in the sedimentation unit 12 will monitor the various indicators of the liquid in real time. If it is found that some indicators of the liquid still do not meet the discharge standards, the controller 7 will control the return component 5 to return the liquid to the neutralization unit 11 for secondary treatment. The impurities and sediments after sedimentation will be discharged through the discharge port, while the liquid that meets the standards will be discharged from the device through the liquid outlet, thus completing the entire construction wastewater treatment process.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A construction wastewater treatment device with self-cleaning function, comprising a tank (1) and a controller (7), characterized in that: The tank (1) is equipped with a neutralization unit (11) and a sedimentation unit (12). The neutralization unit (11) is installed above the precipitation unit (12) through several channels; The neutralization unit (11) is provided with a liquid inlet, the sedimentation unit (12) is provided with a discharge port and a liquid outlet, and the neutralization unit (11) is provided with a stirring assembly (2), several packing assemblies (3) and several detection assemblies (4). A reflux assembly (5) is provided between the sedimentation unit (12) and the neutralization unit (11). A number of detection components (4) are also provided inside the sedimentation unit (12). The controller (7) is electrically connected to the stirring assembly (2), the packing assembly (3) and the detection components (4) respectively. A transmission unit (6) is installed between the stirring assembly (2) and the reflux assembly (5); The packing assembly (3) adds a neutralizing agent to the neutralization unit (11) to balance the acid and alkali of the waste liquid according to the current pH value of the wastewater. The more the pH value of the detection medium deviates from neutral, the greater the stirring power of the stirring component (2).

2. The construction wastewater treatment device with self-cleaning function according to claim 1, characterized in that: The detection component (4) indirectly calculates the pH value of the wastewater by detecting the tension of the wastewater.

3. A construction wastewater treatment device with self-cleaning function according to claim 2, characterized in that: Several sets of the detection components (4) are respectively installed inside the neutralization unit (11) and the precipitation unit (12).

4. A construction wastewater treatment device with self-cleaning function according to claim 3, characterized in that: The detection component (4) includes a detection tube (41), which is equipped with a stretching unit, a liquid level sensing unit and a tension detection unit. The liquid level sensing unit detects the position of the tension detection unit to determine the liquid level of the wastewater, and the stretching unit pulls the tension detection unit to detect the tension of the wastewater.

5. A construction wastewater treatment device with self-cleaning function according to claim 4, characterized in that: The detection tube (41) has a groove inside, and the tension detection unit includes a detection plate (42). The detection plate (42) is slidably installed inside the groove. The detection plate (42) has a metal sheet inside, and the metal sheet is magnetic. The density of the detection plate (42) is less than that of water. The liquid level sensing unit can sense the liquid level of wastewater, and the liquid level sensing unit can sense the position of the detection plate (42); The tension unit includes a detection cylinder (43), a tension detector (44) is installed at the output end of the detection cylinder (43), an electromagnet (45) is installed at the output end of the tension detector (44), the tension detector (44) is electrically connected to the controller (7) through a wire, the detection cylinder (43) pulls the detection plate (42) through the electromagnet (45), and the tension detector (44) provides feedback on the tension of the detection plate (42) leaving the water surface.

6. A construction wastewater treatment device with self-cleaning function according to claim 5, characterized in that: The detection board (42) is a foam board or a pine board, and the detection board (42) is encapsulated with an anti-corrosion film.

7. A construction wastewater treatment device with self-cleaning function according to claim 1, characterized in that: The transmission unit (6) includes a drive disk (61) and a mating disk (62). The drive disk (61) is connected to the stirring assembly (2), and the mating disk (62) is connected to the reflux assembly (5). Magnets are respectively provided on the drive disk (61) and the mating disk (62), and the magnets on the drive disk (61) and the mating disk (62) attract each other.

8. A construction wastewater treatment device with self-cleaning function according to claim 6, characterized in that: The stirring assembly (2) includes a stirring rod (21) and a driving device. The driving device is connected to the stirring rod (21). The driving disk (61) is installed at the bottom of the stirring rod (21). Multiple mixing components (22) are installed on the stirring rod (21). The mixing component (22) includes a support rod and multiple sets of dispersing rods. The support rod is equidistantly mounted on the stirring rod (21), and multiple sets of dispersing rods are mounted on the support rod. The multiple sets of dispersing rods are respectively mounted on the support rod through a transmission component.

9. A construction wastewater treatment device with self-cleaning function according to claim 1, characterized in that: The reflux assembly (5) includes a reflux pipe (51), a reflux rod (52) is installed inside the reflux pipe (51), two sets of limiting rings are installed between the reflux rod (52) and the reflux pipe (51), and reflux vanes are installed at equal intervals on the reflux rod (52) between the two sets of limiting rings.

10. A construction wastewater treatment device with self-cleaning function according to claim 1, characterized in that: The packing assembly (3) includes a packing pipe (31), and a sealing device is installed between the packing pipes (31). The sealing device can close or open the packing pipes (31). Acidic neutralizing reagent and alkaline neutralizing reagent are stored above different packing assemblies (3).

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