A construction site wastewater treatment device

Abstract

The application relates to a construction site sewage treatment device which comprises a sedimentation sleeve, a mud scraping assembly, a core cylinder, a medicine spraying assembly, a flow dividing assembly and an adsorption filtering assembly arranged in the core cylinder, wherein the sedimentation sleeve is fixedly sleeved outside the core cylinder, an upper part cylinder structure of the sedimentation sleeve and the core cylinder form a water accumulation cavity, and a lower part cone structure of the sedimentation sleeve and the core cylinder form a sewage collecting cavity. Through multiple procedures such as sedimentation, sewage collecting, mud scraping, medicine spraying, flow dividing and filtering, the sewage discharged from a construction site is treated to separate sludge and other impurities in the water body, so that the sewage discharged from the construction site is effectively recycled and utilized, and the pollution to the environment is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically to a wastewater treatment device for construction sites. Background Technology

[0002] With the increasing number of construction sites, the amount of construction wastewater discharged is also gradually increasing. This wastewater usually contains a large amount of silt, oil, construction waste and chemical pollutants. If it is discharged directly without treatment, it will not only cause water pollution and harm the ecological environment, but may also affect the quality of life of surrounding residents.

[0003] Most existing construction wastewater treatment devices rely on single physical sedimentation or chemical treatment methods. However, these methods often suffer from low treatment efficiency, complex operation, and high equipment operating costs. Furthermore, in current wastewater treatment technologies, the use of chemical agents is crucial for removing organic and inorganic pollutants. However, in existing technologies, chemicals are directly added to the wastewater, resulting in low mixing efficiency, long treatment times, and unstable effects. Solid impurities and sludge in construction site wastewater tend to accumulate at the bottom of the container during sedimentation, affecting sedimentation efficiency and reducing equipment lifespan. Traditional wastewater treatment devices lack effective sludge scraping mechanisms, leading to difficult and untimely sludge removal.

[0004] Therefore, it is necessary to study a wastewater treatment device for construction sites. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a construction site wastewater treatment device that effectively solves the problems of uneven drug mixing, difficulty in sludge cleaning, and poor filtration effect in existing wastewater treatment devices.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a construction site wastewater treatment device, comprising a sedimentation sleeve, a sludge scraping assembly, a core cylinder, and a spraying assembly, a diversion assembly, and an adsorption filtration assembly disposed within the core cylinder. The sedimentation sleeve is fixedly fitted onto the outside of the core cylinder, and its lower part slopes inward to form an upper water accumulation chamber and a lower sludge collection chamber between the sedimentation sleeve and the core cylinder, with a sludge collection pipe connected to the bottom of the sludge collection chamber. A sludge scraping assembly is provided inside the sedimentation sleeve, comprising a connecting rod, a driving component, and a scraper plate. The driving component is disposed at the top of the core cylinder, one end of the connecting rod is connected to the driving component, and the other end extends into the water accumulation chamber, with the scraper plate fixedly connected to its bottom. The bottom surface of the scraper plate is in close contact with the bottom surface of the sludge collection chamber. The inner part of the core cylinder... Overflow holes are evenly distributed around the circumference of the wall, and these overflow holes communicate with the water accumulation chamber. Overflow pipes are installed inside the overflow holes. The spraying assembly includes a medicine tank and nozzles. The medicine tank is located above the overflow holes, and the nozzles are fixed inside each overflow pipe and connected to the medicine tank via pipes. The diversion assembly includes a central shaft, a conical diversion plate, and a diversion groove. The central shaft is vertically rotatable and installed in the middle of the core cylinder, and is connected to a drive component above it. The diversion groove is located on the central shaft, and has a through hole at its bottom. The conical diversion plate is fixedly fitted below the diversion groove, and its conical sidewall structure corresponds to the through hole on the diversion groove. The adsorption filtration assembly is located below the diversion assembly and performs deep adsorption treatment of wastewater through the activated carbon adsorption layer 92.

[0007] Furthermore, the bottom surface of the sludge collection chamber is evenly provided with sludge discharge holes along the circumference, and a sludge collection assembly is provided below the sludge discharge holes. The sludge collection assembly includes a sludge discharge pipe, a sludge storage pipe, and a sludge pump. The sludge storage pipe is located below the sedimentation sleeve and is fixedly mounted on the core cylinder in a ring structure. The top surface of the sludge storage pipe is evenly connected to the sludge discharge pipe, and the top of each sludge discharge pipe is respectively connected to the sludge discharge holes on the bottom surface of the sludge collection chamber.

[0008] Furthermore, the drain hole has a conical structure, and the upper diameter of the drain hole is larger than the lower diameter, and the drain pipe is adapted to connect and communicate with the lower opening of the drain hole.

[0009] Furthermore, the driving component includes a fixed block, a drive motor, and a docking rotation assembly. The output shaft of the drive motor extends vertically downward and is fixedly connected to the fixed block. The fixed block is rotatably mounted on the core cylinder through a connecting shaft of its internal fixed assembly. The connecting rod has an L-shaped structure, with one end fixedly connected to the side wall of the fixed block through the docking rotation assembly, and the other end extending downward to the sludge collection chamber adjacent to the core cylinder wall. A scraper is fixedly connected to the bottom.

[0010] Furthermore, the docking rotation assembly includes an annular groove formed on the top surface of the core cylinder, a T-shaped slider slidably fitted in the annular groove, a connecting block, a C-shaped sleeve, a connecting sleeve, and a docking shaft. The T-shaped slider is adapted to be fitted in the annular groove, with its top extending out of the annular groove. Its top is fixedly connected to a rectangular connecting block fixed on the connecting rod. The C-shaped sleeve and the connecting sleeve are respectively fixed laterally on the adjacent surfaces of the connecting block and the fixed block. The docking shaft is slidably fitted in the connecting sleeve by a top spring, with the right side of the docking shaft extending out of the connecting sleeve.

[0011] Furthermore, an electromagnet connected to the controller signal is fixed at the bottom of the inner cavity of the connecting sleeve, and a magnetic material is fixed on the left side wall of the docking shaft. When the power is off, the electromagnet on the connecting sleeve and the magnetic material on the docking shaft are attracted and fixed together. After the power is turned on, the magnet is demagnetized, the attraction force disappears, and the docking shaft is ejected to the right under the action of the top spring, so that the right end of the docking shaft overlaps and intersects with the C-shaped sleeve.

[0012] Furthermore, the medicine tank is set on a support plate on the side wall of the core cylinder. The medicine liquid in the medicine tank is a flocculant. When the supernatant flows through the overflow pipe, the nozzle sprays the medicine liquid out, so that the liquid flowing into the diversion tank is mixed evenly in the diversion tank and forms flocculent matter. The adsorbed liquid flows from the through hole at the bottom of the diversion tank to the diversion plate below.

[0013] Furthermore, the adsorption filtration assembly is located below the diversion plate. The adsorption filtration assembly includes an adsorption filter frame and a support base. The support base has an annular structure and is fixedly installed on the inner wall of the core cylinder. The central shaft of the support base is rotated and mounted through a bearing. An activated carbon adsorption layer is provided on the adsorption filter frame.

[0014] Furthermore, the liquid after adsorption filtration falls into the water storage chamber below the adsorption filter frame, and there is a drain outlet on the side wall of the water storage chamber.

[0015] Furthermore, a support frame is fixed along the circumference on the inner wall of the sedimentation sleeve in the area above the overflow hole, and an inclined plate is fixedly installed on the support frame, with a gap between the inclined plate and the core cylinder.

[0016] The beneficial effects of the above technical solution are as follows: This invention provides a construction site wastewater treatment device that, through a multi-stage physical and chemical treatment process, effectively achieves sedimentation, centralized sludge collection, pollutant flocculation, and adsorption filtration of construction site wastewater, ultimately achieving wastewater recycling and resource utilization. This invention's device exhibits significant advantages in sludge settling efficiency, wastewater purification, and resource recovery. Its design ensures that construction site wastewater is treated efficiently and economically, ultimately meeting water quality reuse standards or discharge requirements, providing a feasible solution for the recycling of construction site wastewater.

[0017] This invention employs an inverted conical sedimentation sleeve structure, which, compared to the traditional cylindrical structure, creates a sludge collection chamber within the sedimentation sleeve. The inclined surface of this chamber helps the sludge settle more concentratedly and effectively to the bottom of the collection chamber under gravity. This design not only avoids sludge dispersion and deposition, reducing the loss of settling efficiency, but also allows the sludge to concentrate in the bottom area of ​​the collection chamber, facilitating subsequent sludge collection and treatment.

[0018] This invention is equipped with a sludge scraping assembly, which can prevent sludge from accumulating in the collection chamber for extended periods, especially near the drain holes around the bottom surface of the collection chamber. The scraper blade, through its rotating motion, can continuously remove sludge deposited on the bottom and inclined surfaces. The brush bristle contact between the scraper blade and the bottom surface of the collection chamber effectively scrapes away accumulated sludge, thereby keeping the drain holes unobstructed, preventing sludge blockage, and ensuring the continuous working efficiency of the sedimentation chamber.

[0019] After sedimentation and sludge scraping, the supernatant enters the core cylinder and flows into the overflow pipe through the overflow hole. The spraying assembly sprays flocculant into the supernatant, effectively adsorbing suspended solids, colloidal substances, and other pollutants in the water, causing them to aggregate into larger flocs. This process greatly enhances the efficiency of subsequent treatment and provides favorable conditions for the sedimentation process in the diversion tank.

[0020] The diversion component allows the flocculant to mix thoroughly with the supernatant, forming more stable and denser flocs. The rotation of the diversion tank provides additional power during the mixing process, further improving the dispersibility and effectiveness of the flocculant. The flocculated material has a higher density and can quickly settle to the bottom of the diversion tank, reducing the burden on subsequent filtration and improving the overall efficiency of water treatment.

[0021] The filtration system of this device achieves deep water purification through an activated carbon adsorption layer 92. Activated carbon has an extremely high surface area, effectively adsorbing organic pollutants, heavy metal ions, and odor-causing substances in the water, thereby significantly improving water quality. This filtration layer removes residual pollutants from the water, ensuring that the final discharged water meets relevant environmental standards.

[0022] After undergoing multiple treatment processes including sedimentation, flocculation, sludge scraping, chemical spraying, and filtration, the treated supernatant is further purified through an adsorption filtration system before finally flowing into the storage chamber. Water collected in the storage chamber can be discharged through a drain or recycled, maximizing water resource recovery and reuse. This design not only improves water treatment efficiency but also reduces the construction site's dependence on external water sources, meeting the needs of sustainable development in modern construction sites. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the core tube implementation structure;

[0025] Figure 3 A schematic diagram of the structure of the precipitation sleeve;

[0026] Figure 4 A schematic diagram of the internal structure assembly of the core tube;

[0027] Figure 5 This is a schematic diagram of the internal structure of the core tube from the front view.

[0028] Figure 6 A schematic diagram of the implementation structure for docking rotating components;

[0029] Figure 7 This is a schematic diagram of another embodiment of the present invention.

[0030] Reference numerals: 1-Outer frame, 2-Sedimentation sleeve, 21-Water collection chamber, 22-Sludge collection chamber, 23-Drain hole, 3-Core cylinder, 31-Overflow hole, 32-Overflow pipe, 33-Water storage chamber, 34-Water outlet, 4-Sludge scraping assembly, 41-Drive motor, 42-Fixing block, 43-Connecting rod, 44-Dating rotating assembly, 441-Annular groove, 442-Slider, 443-Connecting block, 444-C-type sleeve, 445-Connecting sleeve, 446-Dating shaft, 447-Electromagnet. 448-Magnetic material, 449-Top spring, 45-Scraper blade, 46-Angled rod, 6-Sludge collection assembly, 61-Sludge discharge pipe, 62-Sludge storage pipe, 63-Sludge pump, 7-Spraying assembly, 71-Medicine tank, 72-Support plate, 73-Spray head, 8-Diverter assembly, 81-Diverter trough, 82-Diverter plate, 83-Through hole, 84-Ring frame, 9-Adsorption filter assembly, 91-Adsorption filter frame, 92-Activated carbon adsorption layer, 93-Support base, 10-Support frame, 11-Angled plate. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0032] Example 1: This example aims to provide a construction site wastewater treatment device, which is mainly used to treat wastewater discharged from construction sites to separate impurities such as sludge from the water, thereby achieving effective recycling and utilization of wastewater discharged from construction sites and reducing its impact on the surrounding environment.

[0033] like Figure 1-5 As shown in the figure, the construction site wastewater treatment device provided in this embodiment is assembled on the outer frame 1 and includes a sedimentation sleeve 2, a core cylinder 3, a sludge scraping assembly 4, a sludge collection assembly 6, a spraying assembly 7, a diversion assembly 8, and a filter assembly. The sedimentation sleeve 2 is fixedly fitted onto the outside of the core cylinder 3, as shown in the figure. Figure 2 and 3As shown, the lower part of the sedimentation sleeve 2 contracts towards the inner core cylinder 3, giving the sedimentation sleeve 2 an inverted conical sleeve structure. This forms a water accumulation cavity 21 between the upper cylindrical structure of the sedimentation sleeve 2 and the core cylinder 3, and a sludge collection cavity 22 between the lower conical structure of the sedimentation sleeve 2 and the core cylinder 3. Compared to a straight cylindrical sedimentation structure, the inclined structure of the sludge collection cavity 22 in this embodiment guides the sludge to settle along the wall towards the center of the sedimentation sleeve 2, ultimately converging at the bottom of the sludge collection cavity 22. This allows the sludge to settle more concentratedly in the central area at the bottom of the sedimentation sleeve 2, rather than being dispersed and deposited throughout the sedimentation sleeve 2, indirectly improving the efficiency and concentration of sludge settling.

[0034] In this embodiment, the top opening of the sedimentation sleeve 2 is also folded outward to form a flange structure. To a certain extent, the flange structure can play a buffering and guiding role, allowing the wastewater to flow smoothly into the sedimentation sleeve 2 along the flange, avoiding the wastewater from directly impacting the inner wall of the sedimentation sleeve 2, reducing the splashing of wastewater caused by the impact, and also helping the wastewater to form a relatively stable flow state in the sedimentation sleeve 2, creating favorable conditions for subsequent sludge settling.

[0035] In actual implementation, the wastewater from the construction site is poured into the sedimentation chamber 2 through the opening at the top. After a certain period of sedimentation, the sludge in the wastewater settles into the sludge collection chamber 22, and the supernatant is stored in the water accumulation chamber 21. The sludge in the wastewater is settled and collected through physical sedimentation. After further treatment, the supernatant can be effectively recycled and utilized from the wastewater discharged from the construction site.

[0036] Furthermore, such as Figure 3 As shown, drain holes 23 are evenly distributed around the bottom surface of the sedimentation sleeve 2's collection chamber 22. A collection assembly 6 is located below the drain holes 23. In this embodiment, the collection assembly 6 includes a drain pipe 61, a storage pipe 62, and a pump 63. The storage pipe 62 is located below the sedimentation sleeve 2 and is fixedly mounted on the core cylinder 3 in a ring structure. The top surface of the storage pipe 62 is evenly connected to the drain pipes 61. The top of each drain pipe 61 is correspondingly connected to the drain holes 23 on the bottom surface of the collection chamber 22. Thus, when wastewater is discharged into the sedimentation sleeve 2 and after a certain period of time, sludge will settle into the collection chamber 22 under gravity and eventually settle into the storage pipe 62 through the drain holes 23 and drain pipes 61. The storage pipe 62 is also connected to the pump 63 via a pipe, which is used to pump out the sludge from the storage pipe 62 when it is full of sludge.

[0037] To facilitate observation of the full load status of the sludge storage pipe 62, it can be made of a transparent material, allowing staff to promptly schedule sludge removal operations and preventing sludge from overflowing from the pipe 62 and causing secondary pollution. Additionally, in this embodiment, the drain hole 23 is designed with a conical structure, see [reference needed]. Figure 3Therefore, when the sludge settles to the bottom of the collection chamber 22 and enters the discharge hole 23, the conical structure can guide the sludge in the hole, making it easier for the sludge to slide down the hole wall into the storage pipe 62, accelerating the discharge speed of the sludge and improving the sludge discharge efficiency of the entire sewage treatment device.

[0038] like Figure 4 and 5 As shown, this embodiment also provides a sludge scraping assembly 4 to prevent sludge from accumulating between the adjacent drain holes 23 on the bottom surface of the sludge collection chamber 22 after long-term sedimentation, thus affecting the sedimentation effect. In this embodiment, the sludge scraping assembly 4 includes a drive motor 41, a connecting rod 43, a docking rotation assembly 44, and a scraper 45, etc. The drive motor 41 is fixed on the outer frame 1, and its output shaft extends vertically downward and is fixedly connected to a fixing block 42. Specifically, a connecting shaft is fixedly mounted on the fixing block 42 in the vertical direction. The upper part of the connecting shaft is connected to the drive motor 41 for transmission, and the lower part of the connecting shaft is rotatably mounted on the core cylinder 3 through a bearing. The bottom extends into the core cylinder 3 and is fixedly mounted on the central shaft of the diversion assembly 8, so that when the drive motor 41 works, it can synchronously drive the fixing block 42 and the central shaft to rotate.

[0039] like Figure 5 As shown, in this embodiment, the connecting rod 43 has an L-shaped structure. One end is fixedly connected to the side wall of the fixed block 42 via a docking rotating assembly 44 on the core cylinder 3, and the other end extends downwards to the sludge collection chamber 22 adjacent to the cylinder wall of the core cylinder 3. A scraper 45 is fixedly connected to the bottom, and the bottom surface of the scraper 45 is provided with bristles that are in close contact with the bottom surface of the sludge collection chamber 22. In the specific implementation structure, the cross-section of the scraper 45 is adapted to the cross-section of the sludge collection chamber 22 in the sedimentation sleeve 2. Thus, when the drive motor 41 drives the connecting rod 43 to rotate via the docking rotating assembly 44, the scraper 45 at the bottom of the connecting rod 43 can perform a cleaning and scraping operation on the inclined surface and bottom surface of the sludge collection chamber 22, thereby cleaning the sludge accumulated on the inclined surface and bottom surface of the sludge collection chamber 22.

[0040] Furthermore, to ensure the stability of the scraper blade 45 connection structure and prevent the scraper blade 45 from shaking or deforming during the cleaning process, this embodiment also fixes a diagonal rod 46 between the connecting rod 43 and the scraper blade 45. This ensures that the brush at the bottom of the scraper blade 45 is always fitted and in close contact with the bottom surface of the sludge collection chamber 22. In practical applications, multiple sets of scraper blades 45 can be evenly distributed around the periphery of the core cylinder 3. Each set is fixedly connected to the fixing block 42 via the connecting rod 43 and the rotating docking assembly. This allows the drive motor 41 to synchronously drive each scraper blade 45 to rotate synchronously around the core cylinder 3 as the central axis, thereby effectively improving the cleaning efficiency of the sludge collection chamber 22 and preventing sludge from remaining in corners or hard-to-reach areas. Therefore, the scraper assembly 4 in this embodiment ensures that the channels between the drain holes 23 are unobstructed by regularly cleaning the sludge collection chamber 22, maintaining a good sedimentation environment and thus ensuring the sewage treatment effect.

[0041] like Figure 4 and Figure 5 As shown, in this embodiment, the spraying assembly 7, the diversion assembly 8, and the filter assembly are arranged sequentially from top to bottom inside the core cylinder 3. Overflow holes 31 are evenly distributed along the circumference of the inner wall of the core cylinder 3, and these overflow holes 31 communicate with the outer water accumulation chamber 21. Overflow pipes 32 are respectively installed inside the overflow holes 31, and each overflow pipe 32 is inclined downwards, allowing the supernatant in the water accumulation chamber 21 to enter the core cylinder 3 through the overflow holes 31 and overflow pipes 32. When the supernatant flows into the overflow pipes 32, the spraying assembly 7 sprays the supernatant, thereby mixing and adsorbing the organic matter in the supernatant.

[0042] Furthermore, the spraying assembly 7 includes a medicine tank 71, a support plate 72, and multiple nozzles 73. The support plate 72 is fixed to the core cylinder 3 in the area above the overflow hole 31 and is fixed to the inner wall of the core cylinder 3. The medicine tank 71 is set on the support plate 72, and the top of the medicine tank 71 extends out of the core cylinder 3 to facilitate the replenishment of medicine solution in the medicine tank 71. Each overflow pipe 32 is fixedly installed with a nozzle 73. Each nozzle 73 is connected to the medicine tank 71 through a pipeline, and its output end faces the inside of the overflow hole 31. The medicine tank 71 is sprayed from the nozzles 73 into the overflow pipe 32 by a medicine pump set on the support plate 72. Thus, when the supernatant flows through the overflow pipe 32, it can mix with the medicine solution and flow into the diversion groove 81 of the diversion assembly 8.

[0043] like Figure 5As shown, the diversion assembly 8 is located inside the core cylinder 3 and below the drain pipe. The diversion assembly 8 includes a central shaft, a diversion plate 82, and a diversion groove 81. The central shaft is vertically positioned in the middle of the core cylinder 3, with a fixed block 42 fixedly connected to its top and a rotatable connection to the adsorption filter frame 91 of the filter assembly at its bottom. This allows the central shaft to rotate synchronously when the drive motor 41 operates. In this embodiment, a ring frame 84 is fixedly installed on the inner wall of the core cylinder 3 below the overflow hole 31. The diversion groove 81 is fixedly fitted onto the central shaft and rotatably mounted on the ring frame 84. Through holes 83 are evenly distributed at the bottom of the diversion groove 81, allowing the diversion groove 81 to rotate synchronously on the ring frame 84 when the central shaft rotates. Figure 5 As shown, the flow divider plate 82 is fixedly mounted on the central shaft below the flow divider 81 so as to rotate with the central shaft. The flow divider plate 82 has a conical structure, and the conical flow divider plate 82 corresponds to the through hole 83 on the flow divider 81, so that the liquid flowing from the through hole 83 on the flow divider to the flow divider plate 82 can flow down along the conical surface.

[0044] In this embodiment, the liquid used in the spraying component 7 is a flocculant. When the supernatant flows through the overflow pipe 32, the nozzle 73 sprays the liquid out and flows into the diversion tank 81. Under the combined action of the water impact force and the rotation of the diversion tank 81, the liquid flowing into the diversion tank 81 is fully mixed. As a result, the flocculant adsorbs suspended particles, colloidal substances and other substances in the supernatant, causing these substances to form larger flocs. These flocs gradually accumulate in the diversion tank 81. Due to their high density, they will naturally settle to the bottom of the diversion tank 81. The adsorbed liquid flows from the through hole 83 at the bottom of the diversion tank 81 to the diversion plate 82 below.

[0045] This not only increases the contact area between the liquid medicine and the supernatant, but also extends their contact time, ensuring that the liquid medicine can be more evenly dispersed in the supernatant, thereby improving the purification effect. Furthermore, when the liquid flows from the through hole 83 at the bottom of the diversion tank 81 to the diversion plate 82, the diversion plate 82 plays a role in dispersing the water flow, allowing the liquid to be evenly dispersed along its surface. It also plays a certain buffering role in the liquid flow process, thus facilitating the water flow to enter the filter assembly below more effectively for further treatment.

[0046] like Figure 4 and Figure 5As shown, the adsorption filter assembly 9 is located below the diversion plate 82. In this embodiment, the adsorption filter assembly 9 includes an adsorption filter frame 91 and a support base 93. The support base 93 has a ring structure and is fixedly installed on the inner wall of the core cylinder 3. The central shaft of the support base 93 is rotated and mounted on the middle through a bearing. An activated carbon adsorption layer 92 is provided on the adsorption filter frame 91. The activated carbon can further adsorb organic pollutants, heavy metal ions, and odor substances in the water, ensuring that the treated aqueous solution achieves a deep treatment effect. The aqueous solution treated by the activated carbon adsorption assembly can effectively remove residual organic matter and heavy metal ions, ensuring that it meets the standards for recycling or discharge. Finally, the liquid after adsorption filtration falls into the water storage chamber 33 inside the core cylinder 3. A drain outlet 34 is opened on the side wall of the water storage chamber 33. When the water in the water storage chamber 33 is observed to be close to the adsorption filter frame 91, the water inside is discharged from the drain outlet 34 or recycled.

[0047] Additionally, it should be noted that, in order to facilitate observation of the water content inside the core cylinder 3, the core cylinder 3 can be made of transparent material during actual production. Furthermore, to facilitate the periodic cleaning of the flocculent material in the diversion tank 81, a window can be opened on the side wall of the core cylinder 3. When it is observed that there is a large amount of material accumulated in the diversion tank 81 or on the adsorption filter rack 91, the staff can open the window and clean it directly. After cleaning, the window can be closed.

[0048] Working principle description: In actual application, the construction site sewage treatment device provided by the present invention is used to pour wastewater into the sedimentation sleeve 2 through the upper opening of the sedimentation sleeve 2. After a certain period of sedimentation in the sedimentation sleeve 2, the sludge in the sewage settles down into the sludge collection chamber 22 under the action of gravity along the inclined surface of the cone structure. Finally, it gathers in the bottom center area of ​​the sludge collection chamber 22 and flows into the sludge storage pipe 62 through the sewage discharge hole 23 and the sewage discharge pipe 61. When the sludge storage pipe 62 is full of sludge, the sludge in the sludge storage pipe 62 is pumped out by the sewage pump 63 for subsequent treatment or disposal.

[0049] After sedimentation, the supernatant enters the core cylinder 3 through the overflow hole 31. When the supernatant enters the overflow pipe 32 through the overflow hole 31, the nozzle 73 of the spraying assembly 7 sprays flocculant into the supernatant, and the flocculant flows together with the supernatant into the diversion tank 81. The rotation of the diversion tank 81 and the impact of the fluid help to enhance the effect of the flocculant, causing the pollutants in the water to further coagulate and settle. That is, the supernatant and flocculant are fully mixed in the diversion tank 81, and large flocs are further formed in the diversion tank 81. These flocs will settle to the bottom of the diversion tank 81 under the action of gravity. After flocculation treatment, the supernatant flows to the diversion plate 82 below through the through hole 83 of the diversion tank 81.

[0050] The liquid flows down the conical surface evenly, avoiding local accumulation or uneven distribution of the liquid on the diversion plate 82. After flowing through the diversion plate 82, the liquid falls down to the activated carbon adsorption layer 92. The aqueous solution treated by the activated carbon adsorption component can effectively remove residual organic matter and heavy metal ions, further purifying the water quality and ensuring that it meets the standards for recycling or discharge.

[0051] Finally, the liquid after adsorption and filtration falls into the water storage chamber 33 at the bottom of the core cylinder 3. The side wall of the water storage chamber 33 has a drain outlet 34. When the water in the water storage chamber 33 is observed to be close to the adsorption filter frame 91, the water inside is discharged from the drain outlet 34 or recycled. The water treated in this way not only effectively removes sludge, suspended solids, organic matter and heavy metals from the wastewater, but also meets the reuse standards of construction site wastewater, thus completing the recycling of water resources.

[0052] In addition, to prevent sludge from accumulating between the adjacent drain holes 23 on the bottom surface of the sludge collection chamber 22 after long-term sedimentation, thus affecting the sedimentation effect, the sludge scraping component 4 operates intermittently. When sludge scraping is required, the connecting rod 43 and the fixing block 42 are connected and fixed by the docking rotating component 44. The drive motor 41 drives the connecting rod 43 to rotate through the fixing block 42. The sludge scraper 45 at the bottom of the connecting rod 43 cleans and scrapes the inclined surface and bottom surface of the sludge collection chamber 22, cleaning up the accumulated sludge and ensuring that the drain hole 23 is unobstructed. The scraped sludge flows through the drain hole 23 and into the sludge storage pipe 62 via the drain pipe 61. When the sludge storage pipe 62 is full of sludge, the sludge in the sludge storage pipe 62 can be extracted and disposed of.

[0053] The wastewater treatment device for construction sites provided by this invention achieves efficient treatment of construction site wastewater through multiple processes including sedimentation, sludge collection, sludge scraping, chemical spraying, diversion, and filtration. The inverted conical structure and flanged design of the sedimentation sleeve 2 improve the efficiency and concentration of sludge settling. The sludge collection component 6 and the sludge scraping component 4 ensure effective collection and cleaning of sludge. The chemical spraying component 7 and the diversion component 8 achieve thorough mixing of the chemical solution and the supernatant, and the settling of flocculent matter. The activated carbon adsorption component further ensures the deep purification of the treated aqueous solution. Finally, the treated aqueous solution can be safely discharged or recycled, effectively reducing environmental pollution.

[0054] Example 2, based on Example 1, further describes the installation structure of the docking rotation assembly 44.

[0055] like Figure 4 and Figure 6As shown, in this embodiment, the docking rotation assembly 44 includes an annular groove 441 formed on the top surface of the core cylinder 3, a T-shaped slider 442 slidably fitted in the annular groove 441, a connecting block 443, a C-shaped sleeve 444, a connecting sleeve 445, and a docking shaft 446. Specifically, the annular groove 441 is a concave annular groove structure. The T-shaped slider 442 is adapted to be fitted in the annular groove 441, and the top of the slider 442 extends out of the annular groove 441. Its top is fixedly connected to the rectangular connecting block 443 fixed on the connecting rod 43. The C-shaped sleeve 444 and the connecting sleeve 445 are respectively fixed laterally on the adjacent surfaces of the connecting block 443 and the fixed block 42. The docking shaft 446 is slidably fitted in the connecting sleeve 445 through a top spring 449. The opening end of the connecting sleeve 445 is provided with a limiting stop. The right side of the docking shaft 446 extends out of the connecting sleeve 445.

[0056] An electromagnet 447 is fixed at the bottom of the inner cavity of the connecting sleeve 445, and a magnetic material 448 is fixed on the left side wall of the docking shaft 446. The electromagnet 447 is a de-energized type and is connected to the controller signal. When the power is off, the electromagnet 447 on the connecting sleeve 445 and the magnetic material 448 on the docking shaft 446 are attracted and fixed together, thereby compressing the top spring 449 (the magnetic force must be greater than the elastic force of the top spring 449). When the power is on, the magnetization is demagnetized, the attraction force disappears, and the docking shaft 446 is ejected to the right under the action of the top spring 449, so that the right end of the docking shaft 446 overlaps and intersects with the C-shaped sleeve 444.

[0057] At this time, the drive motor 41 drives the fixed block 42 to rotate continuously. As the docking shaft 446 rotates in a circular motion and reaches the inner cavity of the C-shaped sleeve 444, it synchronously pushes the C-shaped sleeve 444 to rotate in a circular motion, causing the T-shaped slider 442 to rotate in the annular groove 441, thereby driving the scraper 45 to work. When the scraping work is completed and the power is turned off, the electromagnet 447 on the connecting sleeve 445 and the magnetic material 448 on the docking shaft 446 are attracted together again. At the same time, the docking shaft 446 disengages from the C-shaped sleeve 444. At this time, the connecting rod 43 and the scraper 45 stop rotating and return to their initial static state.

[0058] In this embodiment, the docking rotation assembly 44, through the cooperation of electromagnet 447 and top spring 449, achieves precise control of the connecting rod 43 and the scraper blade 45. When scraping is required, the docking shaft 446 pops out and pushes the C-shaped sleeve 444 to perform a circular motion, driving the scraper blade 45 to work; after the scraping is completed, the docking shaft 446 is attracted and fixed, and the connecting rod 43 and the scraper blade 45 stop rotating. This design not only improves the automation level of the scraping assembly 4, but also ensures the high efficiency and reliability of the scraping operation.

[0059] Example 3: Based on Examples 1 and 2, this example adds an inclined plate 11 structure inside the sedimentation sleeve 2.

[0060] like Figure 7 As shown, a support frame 10 is fixed circumferentially on the inner wall of the sedimentation sleeve 2 above the overflow hole 31. An inclined plate 11 is fixedly installed on the support frame 10. A gap is left between the inclined plate 11 and the core cylinder 3 to avoid interference with the sludge scraping operation. Particles need to settle from the water surface to the bottom of the tank, which is a long distance and takes a long time. However, in this embodiment, when the sewage flows through the inclined plate 11, due to the inclination angle and special design of the inclined plate 11, the particles only need to settle along the inclined surface of the inclined plate 11. In this way, the suspended particles in the sewage settle more easily under the action of gravity, which greatly shortens the sedimentation path, thereby shortening the sedimentation time and improving the sedimentation efficiency.

[0061] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. The basic concept of the present invention lies in achieving efficient purification of construction site wastewater through a multi-stage treatment structure that optimizes sedimentation, sludge collection, sludge scraping, chemical mixing, diversion filtration, and inclined plate-assisted sedimentation, ensuring that the treated aqueous solution meets recycling or discharge standards and effectively reducing environmental pollution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A construction site wastewater treatment device, characterized in that: The system includes a sedimentation sleeve, a sludge scraping assembly, a core cylinder, and a spraying assembly, a diversion assembly, and an adsorption filtration assembly disposed within the core cylinder. The sedimentation sleeve is fixedly fitted onto the outside of the core cylinder, and its lower part slopes inward to form an upper water collection chamber and a lower sludge collection chamber between the sedimentation sleeve and the core cylinder. The bottom of the sludge collection chamber is connected to the sludge collection assembly. The sedimentation sleeve contains a sludge scraping assembly, which includes a connecting rod, a driving component, and a scraper blade. The driving component is located at the top of the core cylinder. One end of the connecting rod is connected to the driving component, and the other end extends into the water collection chamber. The bottom of the connecting rod is fixedly connected to the scraper blade, and the bottom surface of the scraper blade is in close contact with the bottom surface of the sludge collection chamber. Overflow holes are evenly distributed along the circumference of the inner wall of the core cylinder. The overflow hole is connected to the water accumulation chamber, and an overflow pipe is installed inside the overflow hole. The spraying assembly includes a medicine tank and nozzles. The medicine tank is located above the overflow hole, and the nozzles are fixed inside each overflow pipe and connected to the medicine tank through pipes. The diversion assembly includes a central shaft, a conical diversion plate, and a diversion groove. The central shaft is vertically rotatable and installed in the middle of the core cylinder, and is connected to the drive component above it. The diversion groove is set on the central shaft, and a through hole is opened at the bottom of the diversion groove. The conical diversion plate is fixedly fitted below the diversion groove, and its conical sidewall structure corresponds to the through hole on the diversion groove. The adsorption filtration assembly is set below the diversion assembly and performs deep adsorption treatment of sewage through an activated carbon adsorption layer.

2. The construction site wastewater treatment device according to claim 1, characterized in that: The bottom surface of the sludge collection chamber has evenly spaced sludge discharge holes along its circumference. Below the sludge discharge holes is a sludge collection assembly, which includes a sludge discharge pipe, a sludge storage pipe, and a sludge pump. The sludge storage pipe is located below the sedimentation sleeve and is fixedly mounted on the core cylinder in a ring structure. The top surface of the sludge storage pipe is evenly connected to the sludge discharge pipe, and the top of each sludge discharge pipe is respectively connected to the sludge discharge holes on the bottom surface of the sludge collection chamber.

3. The construction site wastewater treatment device according to claim 2, characterized in that: The drain hole has a conical structure, and the upper diameter of the drain hole is larger than the lower diameter. The drain pipe is adapted to connect and communicate with the lower opening of the drain hole.

4. The construction site wastewater treatment device according to claim 1, characterized in that: The driving component includes a fixed block, a drive motor, and a docking rotation assembly. The output shaft of the drive motor extends vertically downward and is fixedly connected to the fixed block. The fixed block is rotatably mounted on the core cylinder through a connecting shaft of its internal fixed set. The connecting rod has an L-shaped structure, with one end fixedly connected to the side wall of the fixed block through the docking rotation assembly, and the other end extending downward to the sludge collection chamber adjacent to the core cylinder wall. A scraper is fixedly connected to the bottom.

5. The construction site wastewater treatment device according to claim 4, characterized in that: The docking rotation assembly includes an annular groove on the top surface of the core cylinder, a T-shaped slider slidably fitted in the annular groove, a connecting block, a C-shaped sleeve, a connecting sleeve, and a docking shaft. The T-shaped slider is adapted to be fitted in the annular groove, with its top extending out of the annular groove. Its top is fixedly connected to a rectangular connecting block fixed on the connecting rod. The C-shaped sleeve and the connecting sleeve are respectively fixed laterally on the adjacent surfaces of the connecting block and the fixed block. The docking shaft is slidably fitted in the connecting sleeve by a top spring, with its right side extending out of the connecting sleeve.

6. The construction site wastewater treatment device according to claim 5, characterized in that: An electromagnet connected to the controller signal is fixed at the bottom of the inner cavity of the connecting sleeve, and a magnetic material is fixed on the left side wall of the docking shaft. When the power is off, the electromagnet on the connecting sleeve and the magnetic material on the docking shaft are attracted and fixed together. When the power is on, the electromagnet is demagnetized, the attraction force disappears, and the docking shaft is ejected to the right under the action of the top spring, so that the right end of the docking shaft overlaps and intersects with the C-shaped sleeve.

7. The construction site wastewater treatment device according to claim 1, characterized in that: The medicine tank is set on a support plate on the side wall of the core cylinder. The medicine liquid in the medicine tank is a flocculant. When the supernatant flows through the overflow pipe, the nozzle sprays the medicine liquid out, so that the liquid flowing into the distribution tank is mixed evenly in the distribution tank and forms flocculent matter. The adsorbed liquid flows from the through hole at the bottom of the distribution tank to the distribution plate below.

8. The construction site wastewater treatment device according to claim 1, characterized in that: The adsorption filtration assembly is located below the diversion plate. The adsorption filtration assembly includes an adsorption filter frame and a support base. The support base has an annular structure and is fixedly installed on the inner wall of the core cylinder. The central shaft of the support base is rotated and mounted through a bearing. An activated carbon adsorption layer is provided on the adsorption filter frame.

9. The construction site wastewater treatment device according to claim 8, characterized in that: The liquid after adsorption and filtration falls into the water storage chamber below the adsorption filter frame, and there is a drain outlet on the side wall of the water storage chamber.

10. The construction site wastewater treatment device according to claim 1, characterized in that: A support frame is fixed along the circumference on the inner wall of the sedimentation sleeve in the area above the overflow hole. An inclined plate is fixedly installed on the support frame, and a gap is left between the inclined plate and the core cylinder.

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