Sewage treatment device for construction site

Abstract

The invention relates to a construction site sewage treatment device, which comprises a precipitation sleeve, a mud scraping assembly, a core cylinder, and a pesticide spraying assembly, a shunting assembly and an adsorption filtering assembly which are arranged in the core cylinder, the precipitation sleeve is fixedly sleeved on the outer side of the core cylinder, and a water accumulation cavity is formed between the upper part column structure of the precipitation sleeve and the core cylinder; and a dirt collection cavity is formed between the lower cone structure of the precipitation sleeve and the core cylinder. According to the waste water treatment device, waste water discharged from the construction site is subjected to dirt removal treatment through multiple procedures such as sedimentation, dirt collection, sludge scraping, pesticide spraying, flow division and filtration, so that impurities such as sludge in water are separated, the waste water discharged from the construction site is effectively recycled and utilized, and pollution to the environment is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly to a sewage treatment device for construction sites. Background Art

[0002] With the increasing number of construction sites, the discharge of construction wastewater has gradually increased. This wastewater usually contains a large amount of sediment, oil, construction waste, and chemical pollutants. If directly discharged 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 of the existing construction wastewater treatment devices rely on a single physical precipitation or chemical treatment method. However, these methods often have problems such as low treatment efficiency, complex operation, and high equipment operation costs. In addition, in the existing technology, the use of chemical agents is a key means to remove organic and inorganic pollutants in sewage. However, in the existing technology, the drugs are directly added to the sewage, and the mixing efficiency is low, resulting in a long treatment time and unstable effects. The solid impurities and sludge in the construction site sewage are prone to accumulate at the bottom of the container during the precipitation process, affecting the precipitation effect and reducing the service life of the equipment. The traditional sewage treatment device lacks an effective sludge scraping mechanism, resulting in difficult and untimely sludge cleaning.

[0004] Based on this, it is necessary to research a sewage treatment device for construction sites. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a sewage treatment device for construction sites, which effectively solves the problems of uneven drug mixing, difficult sludge cleaning, and poor filtration effect existing in the existing sewage treatment devices.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows: A sewage treatment device for construction sites, comprising a sedimentation sleeve, a sludge scraping assembly, a core cylinder, and a medicine spraying assembly, a flow splitting assembly, and an adsorption and filtration assembly arranged inside the core cylinder. The sedimentation sleeve is fixedly sleeved outside the core cylinder, and its lower part inclines and contracts inwards, so as to form a water accumulation cavity above and a sewage collection cavity below between the sedimentation sleeve and the core cylinder, and the bottom of the sewage collection cavity is connected to a sewage collection pipe; A sludge scraping assembly is arranged inside the sedimentation sleeve, and the sludge scraping assembly includes a connecting rod, a driving member, and a sludge scraping plate; The driving member is arranged at the top of the core cylinder, one end of the connecting rod is connected to the driving member, and the other end extends into the water accumulation cavity, and its bottom is fixedly connected to the sludge scraping plate, and the bottom surface of the sludge scraping plate is in close contact with the bottom surface of the sewage collection cavity; Overflow holes are evenly opened along the circumference on the inner wall of the core cylinder, the overflow holes are communicated with the water accumulation cavity, and an overflow pipe is butt-joint installed inside the overflow holes; The medicine spraying assembly includes a medicine box and a spray head, the medicine box is located above the overflow hole, the spray heads are respectively fixed in each overflow pipe, and are connected to the medicine box through a pipeline; The flow splitting assembly includes a central shaft, a conical flow splitting plate, and a flow splitting groove. The central shaft is rotatably installed vertically in the middle of the core cylinder, and its upper part is connected to the driving member. The flow splitting groove is arranged on the central shaft, and through holes are opened at the bottom of the flow splitting groove. The conical flow splitting plate is fixedly sleeved below the flow splitting groove, and the conical structure of its side wall corresponds to the through holes on the flow splitting groove; The adsorption and filtration assembly is arranged below the flow splitting assembly, and the sewage is deeply adsorbed and treated through the activated carbon adsorption layer 92.

[0007] Further, sewage discharge holes are evenly opened along the circumference on the bottom surface of the sewage collection cavity, and a sewage collection assembly is arranged below the sewage discharge holes. The sewage collection assembly includes a sewage discharge pipe, a sewage storage pipe, and a sewage pumping pump. The sewage storage pipe is located below the sedimentation sleeve and is fixedly sleeved on the core cylinder in a ring structure. The top surface of the sewage storage pipe is evenly connected to the sewage discharge pipes, and the tops of the sewage discharge pipes are respectively corresponding and communicated with the sewage discharge holes on the bottom surface of the sewage collection cavity.

[0008] Further, the sewage discharge hole is of a conical structure, and the aperture above the sewage discharge hole is larger than the aperture below, and the sewage discharge pipe is adaptively butt-joint and communicated with the lower opening of the sewage discharge hole.

[0009] Further, the driving member includes a fixed block, a driving motor, and a docking and rotating assembly. The end of the output shaft of the driving motor extends vertically downward and is fixedly connected to the fixed block. The fixed block is rotatably installed on the core cylinder through a connecting shaft fixedly sleeved inside it. The connecting rod is of an L-shaped structure, one end of which is fixedly connected to the side wall of the fixed block through the docking and rotating assembly, and the other end extends downward close to the inner wall of the core cylinder into the sewage collection cavity, and the bottom is fixedly connected to the sludge scraping plate.

[0010] Furthermore, the docking and rotating assembly includes an annular groove formed on the top surface of the core cylinder, a T-shaped slider slidably sleeved in the annular groove, a connecting block, a C-shaped sleeve, a connecting sleeve, and a docking shaft. The T-shaped slider is properly sleeved in the annular groove, and the top of the slider extends out of the annular groove. The top of the slider is fixedly connected to a rectangular connecting block fixed on the connecting rod. The C-shaped sleeve and the connecting sleeve are respectively fixed transversely on the adjacent surfaces of the connecting block and the fixed block. The docking shaft is slidably sleeved in the connecting sleeve through a top spring, and the right side of the docking shaft extends out of the connecting sleeve.

[0011] Furthermore, an electromagnet signal-connected to the controller is fixed at the bottom of the inner cavity of the connecting sleeve, and a magnetic conductive material is correspondingly fixed on the left side wall of the docking shaft. When the power is off, the electromagnet on the connecting sleeve adsorbs and fixes together with the magnetic conductive material on the docking shaft. After being powered on, the demagnetization occurs and the adsorption force disappears. Under the action of the top spring, the docking shaft is ejected to the right, so that the right end of the docking shaft overlaps and interlaces with the C-shaped sleeve.

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

[0013] Furthermore, the adsorption and filtration assembly is arranged at the lower position of the diversion plate. The adsorption and filtration assembly includes an adsorption and filtration frame and a support seat. The support seat is in a ring structure and is fixedly installed on the inner wall of the core cylinder. The middle part of the support seat is rotatably sleeved with a central shaft through a bearing, and an activated carbon adsorption layer is arranged on the adsorption and filtration frame.

[0014] Furthermore, the liquid after adsorption and filtration falls into the water storage chamber below the adsorption and filtration frame, and a water discharge port is opened 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 precipitation sleeve in the area above the overflow hole, and an inclined plate is fixedly installed on the support frame, and there is a gap between the inclined plate and the core cylinder.

[0016] The beneficial effects of the above technical solutions are as follows: The present invention provides a construction site sewage treatment device, which effectively realizes the precipitation of construction site wastewater, the centralized collection of sludge, the flocculation of pollutants, the adsorption and filtration, etc. through a multi-stage physical and chemical treatment process, and finally achieves the purpose of wastewater recovery and resource utilization. The device of the present invention shows significant advantages in aspects such as sludge sedimentation efficiency, wastewater purification, and resource recovery. Its design can ensure that the construction site wastewater is treated efficiently and economically, and finally meets the water quality reuse standard or discharge requirement, providing a feasible solution for the recycling of construction site wastewater.

[0017] By adopting an inverted conical sedimentation sleeve structure, compared with the traditional straight cylindrical structure, a sewage collection cavity is formed in the sedimentation sleeve of the present invention. The inclined surface of this cavity helps the sludge to settle more concentratedly and effectively to the bottom of the sewage collection cavity under the action of gravity. This design can not only avoid the dispersed deposition of sludge and reduce the loss of sedimentation efficiency, but also enable the sludge to be concentrated in the bottom area of the sewage collection cavity, facilitating subsequent sludge collection and treatment.

[0018] The present invention is equipped with a sludge scraping component, which can prevent the sludge from accumulating in the sewage collection cavity for a long time. Especially near the sewage discharge holes around the bottom surface of the sewage collection cavity, through the rotation action, the sludge scraping plate can continuously remove the sludge deposited on the bottom surface and the inclined surface. The contact between the sludge scraping plate and the bristles on the bottom surface of the sewage collection cavity can effectively scrape the accumulated sludge, thus keeping the sewage discharge holes unblocked, preventing sludge blockage, and ensuring the continuous working efficiency of the sedimentation cavity.

[0019] After the supernatant is treated by sedimentation and sludge scraping, it enters the core cylinder and flows into the overflow pipe through the overflow holes. By spraying flocculants into the supernatant, the spraying component can effectively adsorb suspended substances, colloidal substances and other pollutants in the water, prompting 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] Through the diversion component, the flocculants can be fully mixed with the supernatant to form more stable and dense flocs. The rotation function of the diversion tank provides additional power during the mixing process, further improving the dispersibility and effect of the flocculants. The flocculated substances have a larger density and can quickly settle to the bottom of the diversion tank, reducing the burden of subsequent filtration and improving the overall water treatment efficiency.

[0021] The filtration component of this device realizes the deep purification of water quality through the activated carbon adsorption layer 92. Activated carbon has a very high surface area and can effectively adsorb organic pollutants, heavy metal ions and odor substances in the water, thus significantly improving the water quality. Through this layer of filtration, the device can remove the residual pollutants in the water and ensure that the finally discharged water quality meets the relevant environmental protection standards.

[0022] After multiple treatments such as sedimentation, flocculation, sludge scraping, spraying and filtration, the treated supernatant is further purified through the adsorption and filtration component and finally flows into the water storage chamber. The accumulated water in the water storage chamber can be discharged through the water discharge port or recycled, maximizing the recycling and reuse of water resources. This design not only improves the water treatment efficiency, but also reduces the dependence of construction sites on external water sources, meeting the needs of sustainable development of modern construction sites. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of an embodiment of the present invention; Figure 2Schematic diagram of the implementation structure of the core tube; Figure 3 Schematic diagram of the implementation structure of the precipitation sleeve; Figure 4 Schematic diagram of the internal structure assembly of the core tube; Figure 5 Schematic diagram of the front view of the internal structure of the core tube; Figure 6 Schematic diagram of the implementation structure of the docking and rotating assembly; Figure 7 Schematic diagram of another implementation structure of the present invention.

[0024] Reference numerals: 1 - outer frame, 2 - precipitation sleeve, 21 - water accumulation cavity, 22 - sewage collection cavity, 23 - sewage discharge hole, 3 - core tube, 31 - overflow hole, 32 - overflow pipe, 33 - water storage chamber, 34 - water discharge port, 4 - sludge scraping assembly, 41 - drive motor, 42 - fixed block, 43 - connecting rod, 44 - docking and rotating assembly, 441 - annular groove, 442 - slider, 443 - connecting block, 444 - C-shaped sleeve, 445 - connecting sleeve, 446 - docking shaft, 447 - electromagnet, 448 - magnetically permeable material, 449 - top spring, 45 - sludge scraping plate, 46 - inclined rod, 6 - sewage collection assembly, 61 - sewage discharge pipe, 62 - sewage storage pipe, 63 - sewage pumping pump, 7 - medicine spraying assembly, 71 - medicine box, 72 - support plate, 73 - spray head, 8 - flow splitting assembly, 81 - flow splitting groove, 82 - flow splitting plate, 83 - through hole, 84 - annular frame, 9 - adsorption and filtration assembly, 91 - adsorption and filtration frame, 92 - activated carbon adsorption layer, 93 - support seat, 10 - support frame, 11 - inclined plate. Detailed implementation manners

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners: Embodiment 1. The purpose of this embodiment is to provide a construction site sewage treatment device, which is mainly used for decontaminating the wastewater discharged from the construction site to separate impurities such as sludge in the water body, so as to effectively recycle and utilize the wastewater discharged from the construction site and reduce its impact on the surrounding environment.

[0026] As Figures 1-5 shown, the construction site sewage treatment device provided in this embodiment is assembled on the outer frame 1 and includes a precipitation sleeve 2, a core tube 3, a sludge scraping assembly 4, a sewage collection assembly 6, a medicine spraying assembly 7, a flow splitting assembly 8 and a filtration assembly. Among them, the precipitation sleeve 2 is fixedly sleeved outside the core tube 3, as Figure 2 and 3As shown, the lower part of the sedimentation sleeve 2 shrinks toward the direction of the internal core barrel 3, so that the sedimentation sleeve 2 presents an inverted cone-shaped sleeve structure, so that a water accumulation chamber 21 is formed between the upper column structure of the sedimentation sleeve 2 and the core barrel 3, and a sewage collection chamber 22 is formed between the lower cone structure of the sedimentation sleeve 2 and the core barrel 3. Compared with the straight cylindrical sedimentation structure, the inclined surface structure of the sewage collection chamber 22 of this embodiment can guide the sludge to settle along the wall toward the central part of the sedimentation sleeve 2, and finally converge to the bottom of the sewage collection chamber 22, so that the sludge can be more concentratedly settled to the bottom center area of ​​the sedimentation sleeve 2, rather than being dispersedly deposited in various places in the sedimentation sleeve 2, which indirectly improves the efficiency and concentration of sludge settling.

[0027] 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 role in buffering and guiding, so that the wastewater can 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 wastewater splashing 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 sedimentation.

[0028] In actual implementation, the wastewater from the construction site is poured into the sedimentation sleeve 2 from the upper opening of the sedimentation sleeve 2. After a certain period of sedimentation, the sludge in the sewage settles into the sewage collecting chamber 22, and the supernatant is stored in the water accumulation chamber 21. The sludge in the sewage is precipitated and collected by physical sedimentation, and these supernatants can be effectively recycled and utilized after subsequent treatment.

[0029] Furthermore, if Figure 3 As shown, the bottom surface of the sewage collecting chamber 22 of the sedimentation sleeve 2 is uniformly provided with drainage holes 23 along the circumference, and a sewage collecting assembly 6 is provided below the drainage holes 23. In this embodiment, the sewage collecting assembly 6 includes a drainage pipe 61, a sewage storage pipe 62 and a sewage pump 63. The sewage storage pipe 62 is located below the sedimentation sleeve 2 and is fixedly mounted on the sleeve core tube 3 in an annular structure. The top surface of the sewage storage pipe 62 is uniformly connected to the drainage pipe 61. The top of each sewage discharge pipe 61 is respectively connected to the drainage holes 23 on the bottom surface of the sewage collecting chamber 22. Therefore, after a certain period of time after the wastewater is discharged into the sedimentation sleeve 2, the sludge will settle into the sewage collecting chamber 22 under the action of gravity, and finally settle into the inner cavity of the sewage storage pipe 62 through the drainage holes 23 and the drainage pipe 61. The sewage storage pipe 62 is also connected to the sewage pump 63 through a pipeline, which is used to extract the sludge in the sewage storage pipe 62 through the sewage pump 63 when the sewage storage pipe 62 is full of sludge.

[0030] In order to facilitate observation of the full load of the sewage storage pipe 62, it can be made of a transparent material, so that the staff can arrange the sewage extraction operation in time to avoid the sludge overflowing from the sewage storage pipe 62 and causing secondary pollution. In addition, in this embodiment, the sewage discharge hole 23 is set to a conical structure, see Figure 3, so that when the sludge settles to the bottom of the sewage collection chamber 22 and enters the sewage discharge hole 23, the conical structure can cause the sludge to form a certain guiding effect in the hole, making it easier for the sludge to slide down along the hole wall into the sewage storage pipe 62, accelerating the discharge speed of the sludge, and improving the sludge discharge efficiency of the entire sewage treatment device.

[0031] As Figure 4 and 5 shown, this embodiment also provides a sludge scraping assembly 4 to prevent sludge from accumulating between the sewage discharge holes 23 adjacent to the bottom surface of the sewage collection chamber 22 after long-term sedimentation, thereby affecting the sedimentation effect. In this embodiment, the sludge scraping assembly 4 includes a driving motor 41, a connecting rod 43, a docking rotating assembly 44, a sludge scraping plate 45, etc. Among them, the driving motor 41 is fixed on the outer frame 1, and the end of its output shaft extends vertically downward and is fixedly connected to a fixed block 42. Specifically, a connecting shaft is fixedly sleeved on the fixed block 42 in the vertical direction. The upper part of the connecting shaft is in transmission connection with the driving motor 41, and the lower part of the connecting shaft is rotatably sleeved on the core cylinder 3 through a bearing, and the bottom extends into the core cylinder 3 and is fixedly sleeved with the central axis of the flow splitting assembly 8. Thus, when the driving motor 41 works, it can synchronously drive the fixed block 42 and the central axis to rotate.

[0032] As Figure 5 shown, in this embodiment, the connecting rod 43 is an L-shaped structure. One end of it is fixedly connected to the side wall of the fixed block 42 through a docking rotating assembly 44 arranged on the core cylinder 3, and the other end extends downward adjacent to the wall of the core cylinder 3 to the sewage collection chamber 22, and the bottom is fixedly connected to the sludge scraping plate 45. And bristles are provided on the bottom surface of the sludge scraping plate 45, and the bristles are in close contact with the bottom surface of the sewage collection chamber 22. In a specific implementation structure, the cross-section of the sludge scraping plate 45 is adapted to the cross-section of the sewage collection chamber 22 in the sedimentation sleeve 2. Thus, when the driving motor 41 drives the connecting rod 43 to rotate through the docking rotating assembly 44, the sludge scraping plate 45 at the bottom of the connecting rod 43 can perform a cleaning and scraping operation on the inclined surface and the bottom surface of the sewage collection chamber 22, and then clean the sludge accumulated on the inclined surface and the bottom surface of the sewage collection chamber 22.

[0033] Further, to ensure the stability of the connection structure of the mud scraper 45 and prevent the mud scraper 45 from shaking or deforming during the cleaning process, in this embodiment, a diagonal rod 46 is fixedly connected between the connecting rod 43 and the mud scraper 45, so that the brush at the bottom of the mud scraper 45 always fits snugly against the inner bottom surface of the sewage collection chamber 22. In actual application, multiple groups of mud scrapers 45 can be evenly distributed on the circumferential side of the core cylinder 3, and are respectively fixedly connected to the fixed block 42 through the connecting rod 43 and the rotary docking assembly. Thus, the driving motor 41 can synchronously drive each mud scraper 45 to rotate synchronously around the core cylinder 3 as the central axis, thereby effectively improving the cleaning efficiency of the sewage collection chamber 22 and preventing sludge from remaining in corners or hard-to-reach areas. Therefore, the mud scraping assembly 4 provided in this embodiment ensures the smoothness of the channel between the sewage discharge holes 23 by regularly cleaning the sewage collection chamber 22, maintains a good sedimentation environment, and thus guarantees the sewage treatment effect.

[0034] As Figure 4 and Figure 5 shown, in this embodiment, the medicine spraying assembly 7, the flow splitting assembly 8, and the filtering assembly are sequentially arranged in the core cylinder 3 from top to bottom. Overflow holes 31 are evenly formed in the inner wall of the core cylinder 3 along the circumference, and the overflow holes 31 are communicated with the outer water accumulation chamber 21. Overflow pipes 32 are respectively butt-mounted inside the overflow holes 31, and each overflow pipe 32 is arranged obliquely downward, so that the supernatant in the water accumulation chamber 21 can enter the core cylinder 3 through the overflow holes 31 via the overflow pipes 32. When the supernatant flows into the overflow pipes 32 respectively, the medicine spraying assembly 7 performs medicine spraying treatment on the supernatant, so as to perform mixed adsorption on the organic matter in the supernatant.

[0035] Further, the medicine spraying assembly 7 includes a medicine box 71, a support plate 72, and multiple spray heads 73. The support plate 72 is fixed on the core cylinder 3 in the area above the overflow holes 31 and is fixed to the inner wall of the core cylinder 3. The medicine box 71 is arranged on the support plate 72, and the top of the medicine box 71 extends outside the core cylinder 3 to facilitate replenishing the liquid medicine in the medicine box 71. Spray heads 73 are fixedly installed on each overflow pipe 32, and each spray head 73 is connected to the medicine box 71 through a pipeline, and its output end faces the inside of the overflow hole 31. The liquid medicine in the medicine box 71 is sprayed from the spray heads 73 into the overflow pipes 32 by a liquid medicine pump arranged on the support plate 72. Thus, when the supernatant flows through the overflow pipes 32, it can be mixed with the liquid medicine and flow into the flow splitting groove 81 of the flow splitting assembly 8.

[0036] As Figure 5As shown in the figure, the flow splitting component 8 is arranged inside the core barrel 3 and is located below the drain pipe. The flow splitting component 8 includes a central shaft, a flow splitting plate 82 and a flow splitting groove 81. The central shaft is vertically arranged in the middle of the core barrel 3, its top is fixedly connected to the fixed block 42, and its bottom is rotatably connected to the adsorption and filtration frame 91 of the filtration component. Therefore, when the driving motor 41 works, it can synchronously drive the rotation of the central shaft. In this embodiment, a ring frame 84 is fixedly installed on the inner wall of the core barrel 3 below the overflow hole 31. The flow splitting groove 81 is fixedly sleeved on the central shaft, and its outer periphery is rotatably installed on the ring frame 84. And through holes 83 are evenly opened at the bottom of the flow splitting groove 81. Therefore, when the central shaft rotates, it can synchronously drive the flow splitting groove 81 to rotate on the ring frame 84. As Figure 5 shown, the flow splitting plate 82 is fixedly sleeved on the central shaft below the flow splitting groove 81 to rotate with the central shaft, and the flow splitting plate 82 has a conical structure. The conical flow splitting plate 82 corresponds to the through holes 83 on the flow splitting groove 81. Therefore, the liquid flowing from the through holes 83 on the flow splitting groove to the flow splitting plate 82 can flow down along the conical surface.

[0037] In this embodiment, the liquid medicine of the medicine spraying component 7 is a flocculant. When the supernatant flows through the overflow pipe 32, the spray head 73 sprays out the liquid medicine and flows into the flow splitting groove 81. Under the combined action of the impact force of water and the rotation of the flow splitting groove 81, the liquid flowing into the flow splitting groove 81 is fully mixed. Therefore, the flocculant adsorbs the suspended particles, colloid substances, etc. in the supernatant, making these substances form larger flocs. These flocs gradually gather in the flow splitting groove 81. Due to their larger density, they will naturally settle to the bottom of the flow splitting groove 81, and the adsorbed liquid flows from the through holes 83 at the bottom of the flow splitting groove 81 to the flow splitting plate 82 below.

[0038] This not only increases the contact area between the liquid medicine and the supernatant, but also prolongs their contact time, ensuring that the liquid medicine can be more evenly dispersed in the supernatant, thereby improving the purification effect; and when the liquid flows from the through holes 83 at the bottom of the flow splitting groove 81 to the flow splitting plate 82, the flow splitting plate 82 plays a role in dispersing the water flow, making the liquid evenly disperse along its surface, and playing a certain buffering role during the liquid flow process, so as to facilitate the water flow to more effectively enter the lower filtration component for further treatment.

[0039] As Figure 4 and Figure 5As shown, the adsorption and filtration assembly 9 is arranged below the flow splitting plate 82. In this embodiment, the adsorption and filtration assembly 9 includes an adsorption and filtration frame 91 and a support seat 93. The support seat 93 is in a ring structure and is fixedly installed on the inner wall of the core cylinder 3. The center of the support seat 93 is rotatably sleeved with a central shaft through a bearing. An activated carbon adsorption layer 92 is arranged on the adsorption and filtration frame 91. The activated carbon can further adsorb organic pollutants, heavy metal ions, and odor substances in the water to ensure that the treated aqueous solution reaches the deep treatment effect. The aqueous solution after being treated by the activated carbon adsorption assembly can effectively remove residual organic substances and heavy metal ions to ensure that the standard for recycling or discharging is met. Finally, the liquid after adsorption and filtration falls into the water storage chamber 33 in the core cylinder 3. A water discharge port 34 is opened on the side wall of the water storage chamber 33. When it is observed that the accumulated water in the water storage chamber 33 is close to the adsorption and filtration frame 91, the accumulated water inside is discharged from the water discharge port 34 or recycled.

[0040] In addition, it should be noted that in order to facilitate observing the water storage situation in the core cylinder 3, the core cylinder 3 can be made of a transparent material during actual production. And in order to facilitate the regular cleaning of the flocs in the flow splitting groove 81, a window can be opened on the side wall of the core cylinder 3. When it is observed that there are more substances accumulated in the flow splitting groove 81 or on the adsorption and filtration frame 91, the staff can open the window and directly clean it, and then close the window after cleaning.

[0041] Principle description: For the construction site sewage treatment device provided by the present invention, during actual application, the wastewater is poured into the precipitation sleeve 2 from the upper opening of the precipitation sleeve 2. The wastewater undergoes precipitation in the precipitation sleeve 2 for a certain period of time. The sludge in the sewage settles along the inclined surface of the conical structure to the sewage collection chamber 22 under the action of gravity, and finally converges to the bottom center area of the sewage collection chamber 22 and flows into the sewage storage pipe 62 through the sewage discharge hole 23 via the sewage discharge pipe 61. When the sewage storage pipe 62 is filled with sludge, the sludge in the sewage storage pipe 62 is pumped out by the sewage pumping pump 63 for subsequent treatment or disposal.

[0042] The supernatant after precipitation 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 medicine spraying assembly 7 sprays the flocculant into the supernatant and flows to the flow splitting groove 81 together with the supernatant. The rotation of the flow splitting groove 81 and the impact of the fluid help to enhance the effect of the flocculant, enabling the pollutants in the water to further coagulate and settle, that is, the supernatant and the flocculant are fully mixed in the flow splitting groove 81, and larger flocs are further formed in the flow splitting groove 81. These flocs will settle to the bottom of the flow splitting groove 81 under the action of gravity. After the supernatant is flocculated, it flows through the through hole 83 of the flow splitting groove 81 to the lower flow splitting plate 82.

[0043] The liquid flows evenly along the conical surface, avoiding local accumulation or uneven distribution of the liquid on the flow splitting plate 82. After the liquid flows through the flow splitting plate 82, it falls downward towards the activated carbon adsorption layer 92. The aqueous solution treated by the activated carbon adsorption assembly can effectively remove residual organic matters and heavy metal ions, further purify the water quality, and ensure that it meets the standards for recycling or discharging.

[0044] Finally, the liquid after adsorption and filtration falls into the water storage chamber 33 at the inner bottom of the core cylinder 3. A water discharge port 34 is opened on the side wall of the water storage chamber 33. When it is observed that the accumulated water in the water storage chamber 33 is close to the adsorption and filtration rack 91, the accumulated water inside is discharged from the water discharge port 34 or recycled; the water liquid treated in this way not only effectively removes sludge, suspended matters, organic matters and heavy metals in the wastewater, but also meets the reuse standards for construction site wastewater, completing the recycling of water resources.

[0045] In addition, in order to avoid the accumulation of sludge between the adjacent sewage discharge holes 23 on the bottom surface of the sewage collection chamber 22 after long-term precipitation, which affects the precipitation effect, the sludge scraping assembly 4 works irregularly. When sludge scraping operation is required, the connecting rod 43 and the fixed block 42 are docked and fixed through the docking and rotating assembly 44. The driving motor 41 drives the connecting rod 43 to rotate through the fixed block 42. The sludge scraping plate 45 at the bottom of the connecting rod 43 performs cleaning and scraping operations on the inclined surface and the bottom surface of the sewage collection chamber 22, cleaning up the accumulated sludge, ensuring that the sewage discharge holes 23 are unobstructed. The scraped sludge flows into the sewage storage pipe 62 through the sewage discharge holes 23 via the sewage pipe 61 for storage. When the sewage storage pipe 62 is filled with sludge, the sludge in the sewage storage pipe 62 can be pumped out for treatment.

[0046] The construction site sewage treatment device provided by the present invention realizes the efficient treatment of construction site wastewater through multiple processes such as precipitation, sewage collection, sludge scraping, medicine spraying, flow splitting and filtration. The inverted conical structure and flanging design of the precipitation sleeve 2 improve the efficiency and concentration of sludge settlement. The sewage collection assembly 6 and the sludge scraping assembly 4 ensure the effective collection and cleaning of sludge. The medicine spraying assembly 7 and the flow splitting assembly 8 realize the full mixing of the medicine liquid and the supernatant liquid and the settlement of flocs. The activated carbon adsorption assembly 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.

[0047] Embodiment 2, on the basis of Embodiment 1, the installation structure of the docking and rotating assembly 44 is further described in this embodiment.

[0048] As Figure 4 and Figure 6As shown in the figure, in this embodiment, the docking and rotating assembly 44 includes an annular groove 441 formed on the top surface of the core cylinder 3, a T-shaped slider 442 slidably sleeved in the annular groove 441, a connecting block 443, a C-shaped sleeve 444, a connecting sleeve 445, a docking shaft 446, etc. Specifically, the annular groove 441 is a concave annular groove 441 structure, and the T-shaped slider 442 is suitably sleeved in the annular groove 441. The top of the slider 442 extends out of the annular groove 441, and its top is fixedly connected to a rectangular connecting block 443 fixed on the connecting rod 43. The C-shaped sleeve 444 and the connecting sleeve 445 are respectively fixed on the adjacent surfaces of the connecting block 443 and the fixed block 42 in the transverse direction. The docking shaft 446 is slidably sleeved in the connecting sleeve 445 through a top spring 449. The open end of the connecting sleeve 445 is provided with a limiting retaining platform, and the right side of the docking shaft 446 extends out of the connecting sleeve 445.

[0049] An electromagnet 447 is fixed at the bottom of the inner cavity of the connecting sleeve 445. A magnetic conductive material 448 is correspondingly fixed on the left side wall of the docking shaft 446. And the electromagnet 447 is a power-off type electromagnet 447, which is signal-connected to the controller. In the case of non-power-on, the electromagnet 447 on the connecting sleeve 445 and the magnetic conductive material 448 on the docking shaft 446 are adsorbed and fixed together, so that the top spring 449 is compressed (the magnetic force needs to be greater than the elastic force of the top spring 449); after power-on, the demagnetization occurs and the adsorption force disappears, so that the docking shaft 446 pops to the right under the action of the top spring 449, and the right end of the docking shaft 446 overlaps and intersects with the C-shaped sleeve 444.

[0050] At this time, since the driving motor 41 drives the fixed block 42 to continuously rotate, as the docking shaft 446 makes a circular motion and when it rotates into the inner cavity of the C-shaped sleeve 444, it can synchronously push the C-shaped sleeve 444 to make a circular motion, so that the T-shaped slider 442 rotates in the annular groove 441, thereby driving the sludge scraping plate 45 to work. After the sludge scraping work is completed, the power is cut off, and the electromagnet 447 on the connecting sleeve 445 and the magnetic conductive material 448 on the docking shaft 446 are adsorbed 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 sludge scraping plate 45 stop rotating and return to the initial static state.

[0051] The docking and rotating assembly 44 in this embodiment realizes the precise control of the connecting rod 43 and the sludge scraping plate 45 through the cooperation of the electromagnet 447 and the top spring 449. When sludge scraping work needs to be carried out, the docking shaft 446 pops out and pushes the C-shaped sleeve 444 to make a circular motion, driving the sludge scraping plate 45 to work; after the sludge scraping work is completed, the docking shaft 446 is adsorbed and fixed, and the connecting rod 43 and the sludge scraping plate 45 stop rotating. This design not only improves the automation degree of the sludge scraping assembly 4, but also ensures the high efficiency and reliability of the sludge scraping work.

[0052] Embodiment 3. On the basis of Embodiments 1 and 2, an inclined plate 11 structure is added in the precipitation sleeve 2 in this embodiment.

[0053] As Figure 7 shown, a support frame 10 is fixedly arranged along the circumference on the inner wall of the sedimentation sleeve 2 in the area above the overflow hole 31. An inclined plate 11 is fixedly installed on the support frame 10, and there is a gap between the inclined plate 11 and the core barrel 3 to avoid interference with the sludge scraping work. The particles need to settle from the water surface to the bottom of the pool, with a long distance and a long time. In this embodiment, when the sewage flows through the inclined plate 11, due to the inclined 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 are more likely to settle under the action of gravity, greatly shortening the sedimentation path, thereby shortening the sedimentation time and improving the sedimentation efficiency.

[0054] The embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. The basic concept of the present invention is to achieve the efficient purification of construction site wastewater by optimizing multi-stage treatment structures such as sedimentation, sewage collection, sludge scraping, spraying and mixing, shunt filtration, and inclined plate assisted sedimentation, ensuring that the treated aqueous solution meets the recycling or discharge standards and effectively reducing environmental pollution. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A construction site sewage treatment device, characterized in that: It includes a sedimentation sleeve, a scraper assembly, a core barrel, and a spray assembly, a diversion assembly and an adsorption filter assembly arranged in the core barrel. The sedimentation sleeve is fixedly sleeved on the outside of the core barrel, and its lower part is inclined and contracted inwardly, so that an upper water accumulation chamber and a lower sewage collection chamber are formed between the sedimentation sleeve and the core barrel, and the bottom of the sewage collection chamber is connected to a sewage collection pipe; a scraper assembly is arranged in the sedimentation sleeve, and the scraper assembly includes a connecting rod, a driving member and a scraper plate; the driving member is arranged on the top of the core barrel, one end of the connecting rod is connected to the driving member, and the other end extends into the water accumulation chamber, and the bottom of the connecting rod is fixedly connected to the scraper plate, and the bottom surface of the scraper plate is in close contact with the bottom surface of the sewage collection chamber; overflow holes are evenly opened along the circumference of the inner wall of the core barrel, and the overflow The hole is connected to the water accumulation chamber, and an overflow pipe is installed on the inner side of the overflow hole; the spray assembly includes a medicine box and a nozzle, the medicine box is located above the overflow hole, and the nozzles are respectively fixed in each overflow pipe and connected to the medicine box through a pipeline; the diversion assembly includes a central axis, a conical diversion plate and a diversion trough, the central axis is installed in the middle of the core barrel along the vertical rotation, and the top is connected to the driving member, the diversion trough is arranged on the central axis, and the bottom of the diversion trough is opened with a through hole, the conical diversion plate is fixedly mounted under the diversion trough, and the conical structure of its side wall corresponds to the through hole on the diversion trough; the adsorption and filtration assembly is arranged below the diversion assembly, and the sewage is deeply adsorbed and treated by the activated carbon adsorption layer 92.

2. The construction site sewage treatment device according to claim 1, characterized in that: The bottom surface of the sewage collecting chamber is evenly provided with sewage discharge holes along the circumference, and a sewage collecting assembly is arranged below the sewage discharge holes. The sewage collecting assembly comprises a sewage discharge pipe, a sewage storage pipe and a sewage pump. The sewage storage pipe is located below the sedimentation sleeve and is fixedly mounted on the core tube in an annular structure. The top surface of the sewage storage pipe is evenly connected to the sewage discharge pipe, and the top of each sewage discharge pipe is respectively connected to the sewage discharge holes on the bottom surface of the sewage collecting chamber.

3. The construction site sewage treatment device according to claim 2, characterized in that: The sewage discharge hole is a conical structure, and the upper aperture of the sewage discharge hole is larger than the lower aperture, and the sewage discharge pipe is adapted to be connected and communicated with the lower opening of the sewage discharge hole.

4. The construction site sewage treatment device according to claim 1, characterized in that: The driving member includes a fixed block, a driving motor and a docking rotating assembly. The output end shaft of the driving motor extends vertically downward and the end is fixedly connected to the fixed block. The fixed block is rotatably mounted on the core barrel through a connecting shaft fixed inside it. The connecting rod is an L-shaped structure, one end of which is fixedly connected to the side wall of the fixed block through a docking rotating assembly, and the other end extends downward to the dirt collecting chamber close to the core barrel wall, and the bottom is fixedly connected to the scraper plate.

5. The construction site sewage treatment device according to claim 4, characterized in that: The docking rotation assembly includes an annular groove opened on the top surface of the core barrel, a T-shaped slider slidingly sleeved 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 mounted in the annular groove, the top of the slider extends out of the annular groove, and 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 adjacent surfaces of the connecting block and the fixed block. The docking shaft is slidably sleeved in the connecting sleeve through a top spring, and the right side of the docking shaft extends out of the connecting sleeve.

6. The construction site sewage 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 conductive material is correspondingly fixed on the left side wall of the docking shaft; when the power is off, the electromagnet on the connecting sleeve is adsorbed and fixed to the magnetic conductive material on the docking shaft, and after the power is turned on, the magnetism is demagnetized, the adsorption force disappears, and the docking shaft is ejected to the right side under the action of the top spring, so that the right end of the docking shaft overlaps and interlaces with the C-shaped sleeve.

7. The construction site sewage treatment device according to claim 1, characterized in that: The medicine box is arranged on a support plate on the side wall of the core tube. The medicine liquid in the medicine box 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 groove is mixed evenly in the diversion groove and forms flocs, and the adsorbed liquid flows from the through hole at the bottom of the diversion groove to the diversion plate below.

8. The construction site sewage treatment device according to claim 1, characterized in that: The adsorption filter assembly is arranged below the diverter plate, and includes an adsorption filter frame and a support seat. The support seat is annular in structure and is fixedly mounted on the inner wall of the core barrel, and the middle part of the support seat is rotated by a bearing to fit the central axis, and an activated carbon adsorption layer is arranged on the adsorption filter frame.

9. The construction site sewage treatment device according to claim 8, characterized in that: The liquid after adsorption and filtration falls into the water storage chamber below the adsorption and filtration frame, and a water discharge port is opened on the side wall of the water storage chamber.

10. The construction site sewage 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, and an inclined plate is fixedly installed on the support frame, and a gap is left between the inclined plate and the core barrel.

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