Sewage treatment device and sewage treatment method for environmental engineering

Abstract

The invention discloses a sewage treatment device for environmental engineering and a sewage treatment method, and relates to the technical field of sewage treatment.The device comprises a water tank, a transversely-arranged treatment barrel is installed at the top of the water tank, a rotating piece is installed in the treatment barrel, and a sewage cleaning piece used for adsorbing sewage sediment is installed on the rotating piece; the sewage cleaning part can slide upwards along the rotating part under the buoyancy effect of water, a strip-shaped shell cover is installed at the top of the treatment barrel, strip-shaped openings allowing the sewage cleaning part to penetrate out are formed in the strip-shaped shell cover and the top of the treatment barrel, and a cleaning mechanism used for cleaning sediments adsorbed on the sewage cleaning part is installed on the strip-shaped shell cover. A driving assembly used for driving the rotating part to rotate is installed on the outer side of the treatment barrel, and a water circulation dosing mechanism is installed between the treatment barrel and the water tank. According to the invention, continuous and efficient mechanical separation of the precipitate is realized, and the adding amount of the flocculating agent is adjusted according to the weight of the precipitate separated in real time, so that the sewage precipitation effect and the treatment efficiency are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a wastewater treatment device and method for environmental engineering. Background Technology

[0003] A Chinese patent publication number CN119929998B discloses a wastewater treatment device for environmental engineering. As the weight of the flocculant powder collected within the scoop increases, the scoop body gradually rotates downwards against the tension of a return spring until the gravity of the flocculant powder forces the permanent magnet at the bottom of the scoop to separate, causing the bottom of the scoop to rotate. At this point, the flocculant powder scatters into the tank, and an air-blowing component accelerates the diffusion of the flocculant powder. However, this technical solution still has the following drawbacks: 1. Although intermittent addition of flocculants can reduce waste, the degree of pollution and the amount of sediment contained in different batches of wastewater vary greatly, making it impossible to reasonably match the corresponding amount of flocculant to the amount of sediment in the wastewater. 2. After adding flocculant, it relies on natural sedimentation, which is slow and inefficient, and can easily affect the efficiency of the entire purification process. Summary of the Invention

[0004] This invention provides a wastewater treatment device and method for environmental engineering, which can solve the problems in the prior art where wastewater treatment devices cannot accurately match the amount of flocculant added in real time according to the amount of sediment in the wastewater, and the problems caused by relying on natural sedimentation, resulting in low separation efficiency and slow treatment speed.

[0005] The objective of this invention can be achieved through the following technical solutions: The first aspect of this invention provides a wastewater treatment device for environmental engineering, including a water tank, a horizontally arranged treatment cylinder mounted on the top of the water tank, a rotating component installed inside the treatment cylinder, a cleaning component for adsorbing wastewater sediment mounted on the rotating component, and the cleaning component can slide upward along the rotating component under the buoyancy of water, a strip-shaped cover mounted on the top of the treatment cylinder, and both the strip-shaped cover and the top of the treatment cylinder have strip-shaped openings for the cleaning component to pass through, a cleaning mechanism for cleaning the sediment adsorbed on the cleaning component mounted on the strip-shaped cover, a drive assembly for driving the rotating component to rotate mounted on the outside of the treatment cylinder, and a water circulation dosing mechanism installed between the treatment cylinder and the water tank, the water circulation dosing mechanism being used to control the amount of flocculant added according to the amount of sediment cleaned by the cleaning mechanism.

[0006] As a further embodiment of the present invention: the rotating component includes a rotating rod and guide pins, the end of the rotating rod is rotatably connected to the center of the inner wall of the end of the processing cylinder, the two guide pins are symmetrically and vertically installed on the rod wall near both ends of the rotating rod, and the cleaning component is slidably arranged along the guide pins.

[0007] As a further embodiment of the present invention: the cleaning component includes a frame with slots, a float plate, a pressure frame and a filter cloth. Two slots are symmetrically opened at the bottom of the frame near both sides, and the frame is slidably sleeved with the guide post through the slots. Two pressure frames are symmetrically arranged on both sides of the frame, and the pressure frames are used to press the filter cloth onto both sides of the frame. The float plate is installed on the side wall of the frame near the bottom.

[0008] As a further aspect of the present invention: the cleaning mechanism includes a rotating roller with bristles, a first gear, a first motor, and a bracket. The two rotating rollers are symmetrically arranged inside the strip-shaped housing. One end of the rotating roller is rotatably connected to the inner wall of the strip-shaped housing, and the other end of the rotating roller extends to the outer side of the strip-shaped housing and is coaxially connected to the first gear. The two first gears are meshed with each other. The first motor is used to drive one of the first gears to rotate, and the first motor is connected to the outer end of the processing cylinder through the bracket.

[0009] As a further embodiment of the present invention: the driving assembly includes an external gear ring, a second gear, a second motor, a connecting frame, and a fixing ring. The external gear ring is located on the outside of the processing cylinder and is coaxially arranged with it. One end of the rotating rod is connected to the external gear ring through the connecting frame, and the external gear ring drives the rotating rod to rotate coaxially through the connecting frame. The second motor is installed on the outer wall of the processing cylinder. The second gear is driven by the second motor and is meshed with the external gear ring. The fixing ring is installed at the end of the processing cylinder, and the external gear ring and the fixing ring are rotatably sleeved.

[0010] As a further embodiment of the present invention: the connecting frame includes an annular disk, a pin, and an L-shaped plate. The pin passes through the end of the processing cylinder and is coaxially connected to the rotating rod. The annular disk is coaxially connected to the pin. A plurality of L-shaped plates are distributed circumferentially along the annular disk, and the other end of the L-shaped plate is connected to the side wall of the outer gear ring.

[0011] As a further embodiment of the present invention: the water circulation dosing mechanism includes a drain pipe with a drain valve, a circulation pump, a pumping pipe, a delivery pipe, and a dosing pipe. One end of the drain pipe is connected to the top of the water tank, and the other end of the drain pipe is connected to the side wall of the treatment cylinder. The circulation pump is installed on the outer side wall of the water tank. The input end of the circulation pump is connected to the inner cavity of the water tank through the pumping pipe, and the output end of the circulation pump is connected to the inner cavity of the treatment cylinder through the delivery pipe. The dosing pipe is vertically connected to the top of the delivery pipe.

[0012] As a further aspect of the present invention: a one-way valve is installed on the dosing pipe near the water supply pipe, and a metering valve for controlling the amount of flocculant added is provided above the one-way valve, and the metering valve is installed on the dosing pipe.

[0013] As a further aspect of the present invention: the cleaning mechanism further includes a negative pressure tee and an air inlet, the two ends of the negative pressure tee are symmetrically connected and disposed at the end of the strip-shaped housing away from the first motor, and the air inlet is symmetrically disposed on the side wall of the strip-shaped housing away from the end of the negative pressure tee.

[0014] A second aspect of the present invention provides a wastewater treatment method for an environmental engineering wastewater treatment device, comprising the following steps: Step 1: Fill the treatment tank with wastewater, start the drive assembly to drive the rotating parts to rotate, so that the cleaning parts move circumferentially inside the treatment tank to fully adsorb and capture the sediment in the water; Step 2: Adjust the cleaning component to a vertically upward position. Under the buoyancy of the water in the treatment cylinder, the cleaning component will automatically slide up along the rotating part and pass through the strip-shaped shell. The cleaning mechanism can be used to clean and collect the sediment adsorbed and captured by the cleaning component. Step 3: After the sediment on the cleaning component is cleaned, a portion of the wastewater in the treatment cylinder is introduced into the water tank using the water circulation dosing mechanism. This allows the cleaning component to automatically slide down into the treatment cylinder under gravity. The circumferential movement of the cleaning component is then controlled. Simultaneously, based on the amount of sediment collected, flocculant is precisely added to the treatment cylinder in conjunction with the water circulation dosing mechanism to improve the sedimentation and treatment effect of the wastewater.

[0015] The beneficial effects of this invention are: 1. In this invention, by incorporating a cleaning component that moves circumferentially with the rotating component within the treatment cylinder, the device can actively and continuously adsorb and capture suspended sediments in wastewater, replacing the passive method of relying solely on flocculants for flocculation followed by settling in traditional technologies. When the cleaning component moves to a specific position (e.g., vertically upward) with the rotating component, it automatically slides upward under the buoyancy of the water and exits the treatment cylinder, entering the external strip-shaped casing. This achieves unpowered, automated switching between the working position (underwater adsorption) and the cleaning position (above-water cleaning) of the cleaning component. Using the cleaning mechanism installed on the strip-shaped casing, the surface of the cleaning component, now above the water, can be physically cleaned directly, efficiently scraping away and collecting the adsorbed sediments. This not only significantly accelerates the separation speed of sediments from water, avoiding the time-consuming and inefficient problems of natural sedimentation, but also enables the immediate removal and concentration of sediments.

[0016] 2. In this invention, the amount of sediment removed from the cleaning components by the cleaning mechanism directly reflects the original suspended solids concentration and pollution load in the current batch of wastewater. Based on this information, the water circulation dosing mechanism dynamically adjusts and controls the dosage of flocculant added to the system. This closed-loop feedback mechanism completely changes the crude mode of fixed dosage or simple intermittent dosing in existing technologies, achieving "dosing on demand." When the sediment content in the wastewater is high, more sediment is removed, and the system automatically adds more flocculant to ensure sufficient flocculation; conversely, when the sediment content is low, the flocculant dosage is reduced. This not only greatly improves the efficiency of flocculant use, fundamentally reducing waste and operating costs caused by overdosing, but also avoids poor flocculation results caused by underdosing. Simultaneously, it reduces the risk of secondary pollution from residual flocculant, achieving an optimal balance between treatment effect and economy / environmental protection. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a first-view perspective perspective view of a wastewater treatment device for environmental engineering according to the present invention; Figure 2 This is a second-view perspective perspective view of a wastewater treatment device for environmental engineering according to the present invention; Figure 3 This is a three-dimensional view of the cleaning component after it floats up in a wastewater treatment device for environmental engineering according to the present invention; Figure 4 This is a perspective view of the treatment cylinder cut open in a wastewater treatment device for environmental engineering according to the present invention; Figure 5 This is a perspective view of a rotating component in a wastewater treatment device for environmental engineering according to the present invention; Figure 6 This is a perspective view of the cleaning component in a wastewater treatment device for environmental engineering according to the present invention; Figure 7 This is a perspective view of the connection between the cleaning mechanism and the strip-shaped cover in a wastewater treatment device for environmental engineering according to the present invention; Figure 8 This is a perspective view of the drive component in a wastewater treatment device for environmental engineering according to the present invention.

[0019] In the diagram: 100, water tank; 200, treatment cylinder; 201, inlet pipe; 300, rotating component; 301, rotating rod; 302, guide post; 400, cleaning component; 401, slot; 402, frame; 403, float plate; 404, pressure frame; 405, filter cloth; 500, strip-shaped cover; 501, strip-shaped opening; 600, cleaning mechanism; 601, brush bristles; 602, rotating roller; 603, first gear; 604, first motor; 605, support; 606, negative pressure. 607. T-junction; 700. Air inlet; 701. Drive assembly; 702. External gear ring; 703. Second gear; 704. Second motor; 705. Connecting frame; 7041. Annular disc; 7042. Pin; 7043. L-shaped plate; 705. Fixing ring; 800. Water circulation dosing mechanism; 801. Drain valve; 802. Drain pipe; 803. Circulation pump; 804. Pumping pipe; 805. Water supply pipe; 806. Dosing pipe; 807. Check valve; 808. Metering valve. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] like Figures 1-8 As shown, this invention is a wastewater treatment device for environmental engineering, including a water tank 100. A horizontally arranged treatment cylinder 200 is installed on the top of the water tank 100. In this embodiment, the top of the treatment cylinder 200 is connected to an inlet pipe 201 for injecting wastewater. A rotating component 300 is installed inside the treatment cylinder 200, and a cleaning component 400 for adsorbing wastewater sediment is installed on the rotating component 300. The cleaning component 400 can slide upward along the rotating component 300 under the buoyancy of the water. A strip-shaped shell 500 is installed on the top of the treatment cylinder 200. Both the top of the treatment cylinder 500 and the treatment cylinder 200 are provided with strip-shaped openings 501 for the cleaning component 400 to pass through. The strip-shaped cover 500 is equipped with a cleaning mechanism 600 for cleaning the sediment adsorbed on the cleaning component 400. The outside of the treatment cylinder 200 is equipped with a drive assembly 700 for driving the rotating component 300 to rotate. A water circulation dosing mechanism 800 is installed between the treatment cylinder 200 and the water tank 100, and the water circulation dosing mechanism 800 is used to control the amount of flocculant added according to the amount of sediment cleaned by the cleaning mechanism 600.

[0022] It should be noted that during use, firstly, the treatment cylinder 200 is filled with the wastewater to be treated. The drive assembly 700 is started, driving the rotating component 300 to rotate inside the treatment cylinder 200. The cleaning component 400, installed on the rotating component 300, moves circumferentially accordingly, actively adsorbing the sediment in the wastewater. When the cleaning component 400 rotates with the rotating component 300 to the vertically upward position at the top of the treatment cylinder 200, under the buoyancy of the water, the cleaning component 400 automatically slides upward along the rotating component 300 and passes through the corresponding strip opening 501 on the strip-shaped shell 500 to the strip shell. Inside the shroud 500, the cleaning mechanism 600 scrapes or peels the surface of the cleaning component 400 to clean and collect the adsorbed sediment. After cleaning, the water circulation dosing mechanism 800 dynamically adjusts and controls the amount of flocculant added based on the amount of sediment collected by the cleaning mechanism 600. At the same time, this mechanism can guide some of the sewage in the treatment cylinder 200 into the water tank 100, so that the cleaning component 400 slides back into the treatment cylinder 200 under gravity to continue participating in the adsorption process, thereby achieving the coordinated operation of continuous adsorption and cleaning of sediment and precise dosing of chemicals.

[0023] like Figures 4-5 As shown, the rotating component 300 includes a rotating rod 301 and guide pins 302. The end of the rotating rod 301 is rotatably connected to the center of the inner wall of the end of the processing cylinder 200. The two guide pins 302 are symmetrically and vertically installed on the rod wall near both ends of the rotating rod 301. The cleaning component 400 is slidably arranged along the guide pins 302.

[0024] It should be noted that the drive assembly 700 drives the rotating rod 301 to rotate around its axis inside the treatment cylinder 200, and the two guide pins 302, which are symmetrically and vertically installed on the rotating rod 301, rotate synchronously. The cleaning component 400 is slidably sleeved on the guide pins 302. Therefore, when the rotating rod 301 rotates, the cleaning component 400 moves in a circular motion under the guidance of the guide pins 302, thereby circulating and moving inside the treatment cylinder 200 to adsorb the sediment. When the cleaning component 400 moves to the vertical position at the top of the treatment cylinder 200, under the action of water buoyancy, the cleaning component 400 can slide upward along the vertical guide pins 302.

[0025] like Figures 4-6 As shown, the cleaning component 400 includes a frame 402 with slots 401, a float 403, a pressure frame 404, and a filter cloth 405. Two slots 401 are symmetrically opened at the bottom of the frame 402 near both sides, and the frame 402 is slidably sleeved with the guide post 302 through the slots 401. Two pressure frames 404 are symmetrically arranged on both sides of the frame 402, and the pressure frames 404 are used to press the filter cloth 405 onto both sides of the frame 402. The float 403 is installed on the side wall of the frame 402 near the bottom.

[0026] It should be noted that the frame 402 is slidably connected to the guide post 302 through slots 401 symmetrically opened on both sides of its bottom, so that the frame 402 can move up and down along the guide post 302; the filter cloth 405 is used to filter and adsorb sediment in the sewage when the frame 402 rotates with the rotating part 300; the float plate 403 installed near the bottom side wall of the frame 402 provides buoyancy. When the frame 402 moves to the vertical position at the top of the treatment cylinder 200, the float plate 403 pushes the frame 402 to slide upward along the guide post 302 under the action of water buoyancy. In this embodiment, the buoyancy of the float plate 403 in the water is greater than the overall weight of the cleaning part 400. The pressure frame 404 is detachably connected to the frame 402. After the pressure frame 404 is removed, the filter cloth 405 can be removed, so as to facilitate cleaning or replacement of the filter cloth 405 as needed.

[0027] like Figure 3 and Figure 7 As shown, the cleaning mechanism 600 includes a rotating roller 602 with bristles 601, a first gear 603, a first motor 604, and a bracket 605. The two rotating rollers 602 are symmetrically arranged inside the strip-shaped housing 500. One end of the roller shaft of the rotating roller 602 is rotatably connected to the inner wall of the strip-shaped housing 500, and the other end of the roller shaft of the rotating roller 602 extends to the outer side of the strip-shaped housing 500 and is coaxially connected to the first gear 603. The two first gears 603 are meshed with each other. The first motor 604 is used to drive one of the first gears 603 to rotate, and the first motor 604 is connected to the outer end of the processing cylinder 200 through the bracket 605.

[0028] It should be noted that when the first motor 604 starts, it drives the first gear 603 connected to it to rotate. Since the two first gears 603 mesh with each other, the power is transmitted to the other first gear 603, causing the two first gears 603 to rotate synchronously in opposite directions. This, in turn, drives the rotating rollers 602, which are coaxially connected to them, to rotate synchronously in opposite directions within the strip-shaped housing 500. When the cleaning component 400 rises under the buoyancy of the water in the treatment cylinder 200 and enters the strip-shaped housing 500 through the strip-shaped opening 501, the bristles 601 on the two rotating rollers 602 continuously contact the two sides of the cleaning component 400 during the opposite rotation. As the cleaning component 400 rises, the adsorbed sediment on it is brushed off and falls into the strip-shaped housing 500, completing the automatic cleaning.

[0029] like Figure 1 and Figure 8As shown, the drive assembly 700 includes an external gear ring 701, a second gear 702, a second motor 703, a connecting frame 704, and a fixing ring 705. The external gear ring 701 is located on the outside of the processing cylinder 200 and is coaxially arranged with it. One end of the rotating rod 301 is connected to the external gear ring 701 through the connecting frame 704, and the external gear ring 701 drives the rotating rod 301 to rotate coaxially through the connecting frame 704. The second motor 703 is installed on the outer wall of the processing cylinder 200. The second gear 702 is driven by the second motor 703, and the second gear 702 is meshed with the external gear ring 701. The fixing ring 705 is installed at the end of the processing cylinder 200, and the external gear ring 701 and the fixing ring 705 are rotatably sleeved.

[0030] It should be noted that after the second motor 703 starts, it drives the second gear 702 to rotate. Since the second gear 702 meshes with the outer gear ring 701, it drives the outer gear ring 701 to rotate around the axis of the treatment cylinder 200. This transmission method effectively reduces the rotation speed of the outer gear ring 701 and avoids the cleaning component 400 from rotating too fast, which would affect the adsorption effect of the sediment. The outer gear ring 701 is installed at the end of the treatment cylinder 200 through the fixing ring 705 and rotates and is sleeved with it to achieve stable support. The outer gear ring 701 is connected to the rotating rod 301 through the connecting frame 704, so that the rotational motion of the outer gear ring 701 is transmitted through the connecting frame 704, driving the rotating rod 301 to rotate coaxially inside the treatment cylinder 200, thereby driving the guide pin 302 and the cleaning component 400 installed on the rotating rod 301 to move circumferentially.

[0031] like Figure 1 and Figure 8 As shown, the connecting frame 704 includes an annular disk 7041, a pin 7042, and an L-shaped plate 7043. The pin 7042 passes through the end of the processing cylinder 200 and is coaxially connected to the rotating rod 301. The annular disk 7041 is coaxially connected to the pin 7042. Multiple L-shaped plates 7043 are distributed circumferentially along the annular disk 7041, and the other end of the L-shaped plate 7043 is connected to the side wall of the external gear ring 701.

[0032] It should be noted that when the external gear ring 701 rotates, its sidewall drives the annular disk 7041 to rotate synchronously through multiple L-shaped plates 7043 distributed circumferentially. The annular disk 7041 is coaxially and fixedly connected to the pin 7042 that passes through the end of the processing cylinder 200, thereby transmitting the rotational motion to the pin 7042. The pin 7042 is coaxially connected to the rotating rod 301 inside the processing cylinder 200. Therefore, the rotation of the pin 7042 directly drives the rotating rod 301 to rotate around its axis inside the processing cylinder 200. Ultimately, the torque of the external gear ring 701 is smoothly and coaxially transmitted to the rotating rod 301 through the connecting frame 704, driving the entire rotating component 300 to rotate.

[0033] like Figures 1-3As shown, the water circulation dosing mechanism 800 includes a drain pipe 802 with a drain valve 801, a circulation pump 803, a pumping pipe 804, a delivery pipe 805, and a dosing pipe 806. One end of the drain pipe 802 is connected to the top of the water tank 100, and the other end of the drain pipe 802 is connected to the side wall of the treatment cylinder 200. The circulation pump 803 is installed on the outer side wall of the water tank 100. The input end of the circulation pump 803 is connected to the inner cavity of the water tank 100 through the pumping pipe 804, and the output end of the circulation pump 803 is connected to the inner cavity of the treatment cylinder 200 through the delivery pipe 805. The dosing pipe 806 is vertically connected to the top of the delivery pipe 805.

[0034] It should be noted that opening the drain valve 801 on the drain pipe 802 allows some of the wastewater inside the treatment cylinder 200 to flow into the water tank 100, causing the water level in the treatment cylinder 200 to drop. This allows the cleaning component 400 to automatically slide back into the treatment cylinder 200 under gravity along the guide post 302. Simultaneously, the circulation pump 803 draws water from the water tank 100 through the pumping pipe 804 and pumps it back to the treatment cylinder 200 through the delivery pipe 805, thus achieving water circulation. During the circulation process, the water circulation dosing mechanism 800 precisely controls the dosing pipe 806 to replenish flocculant solution into the delivery pipe 805 based on the amount of sediment collected by the cleaning mechanism 600. The flocculant enters the treatment cylinder 200 with the water flow, mixing with the wastewater to promote subsequent flocculation.

[0035] like Figures 2-3 As shown, a one-way valve 807 is installed on the dosing pipe 806 near the water supply pipe 805. Above the one-way valve 807 is a metering valve 808 that controls the amount of flocculant added, and the metering valve 808 is installed on the dosing pipe 806.

[0036] It should be noted that when the circulation pump 803 starts, water is drawn out of the water tank 100 through the water pumping pipe 804 and pumped into the treatment cylinder 200 through the water delivery pipe 805 to achieve water circulation. The dosing pipe 806, which is vertically connected to the top of the water delivery pipe 805, is used to replenish the flocculant solution. The metering valve 808 installed on it is used to accurately control the amount of flocculant added according to the amount of sediment cleaned by the cleaning mechanism 600. The one-way valve 807 installed near the water delivery pipe 805 ensures that the flocculant solution can only flow from the dosing pipe 806 to the water delivery pipe 805 to prevent water from flowing back.

[0037] like Figure 3 and Figure 7 As shown, the cleaning mechanism 600 also includes a negative pressure tee 606 and an air inlet 607. The two ends of the negative pressure tee 606 are symmetrically connected and disposed at the end of the strip housing 500 away from the first motor 604. The air inlet 607 is symmetrically disposed on the side wall of the strip housing 500 away from the end of the negative pressure tee 606.

[0038] It should be noted that in this embodiment, the negative pressure tee 606 is used to connect to an external negative pressure device, which can suck out the sediment inside the strip-shaped housing 500. The extracted sediment is weighed by a pressure sensor or other device (not shown in the figure, as this is prior art and will not be described in detail) to determine its quantity. The weight information of the weighed sediment is fed back to the water circulation dosing mechanism 800 as a basis for controlling the precise addition of flocculant. In addition, in this embodiment, comb teeth (not shown in the figure) for cleaning bristles 601 can be installed on the inner sidewall of the strip-shaped housing 500 along its length direction to prevent the cleaned sediment from getting stuck in the bristles 601.

[0039] This invention provides a wastewater treatment method using a wastewater treatment device for environmental engineering, comprising the following steps: Step 1: Fill the treatment cylinder 200 with sewage, start the drive component 700 to drive the rotating component 300 to rotate, so that the cleaning component 400 moves circumferentially inside the treatment cylinder 200 to fully adsorb and capture the sediment in the water. Step 2: Adjust the cleaning component 400 to a vertically upward position. Under the buoyancy of the water in the treatment cylinder 200, the cleaning component 400 will automatically slide up along the rotating component 300 and pass through the strip-shaped shell 500. The cleaning mechanism 600 can clean and collect the sediment adsorbed and captured by the cleaning component 400. Step 3: After the sediment on the cleaning component 400 is cleaned, the water circulation dosing mechanism 800 is used to guide some of the sewage in the treatment cylinder 200 into the water tank 100, so that the cleaning component 400 automatically slides down into the treatment cylinder 200 under the action of gravity. Continue to control the circumferential movement of the cleaning component 400. At the same time, according to the amount of sediment collected, the water circulation dosing mechanism 800 accurately adds flocculant into the treatment cylinder 200 to improve the sedimentation and treatment effect of sewage.

[0040] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A wastewater treatment device for environmental engineering, comprising a water tank (100), characterized in that, A horizontally arranged treatment cylinder (200) is installed on the top of the water tank (100). A rotating component (300) is installed inside the treatment cylinder (200). A cleaning component (400) for adsorbing sewage sediment is installed on the rotating component (300). The cleaning component (400) can slide upward along the rotating component (300) under the buoyancy of the water. A strip-shaped shell (500) is installed on the top of the treatment cylinder (200). Both the strip-shaped shell (500) and the top of the treatment cylinder (200) are provided with openings for the cleaning component (400) to pass through. The strip-shaped inlet (501) is equipped with a cleaning mechanism (600) for cleaning the sediment adsorbed on the cleaning component (400). A drive assembly (700) for driving the rotating component (300) to rotate is installed on the outside of the treatment cylinder (200). A water circulation dosing mechanism (800) is installed between the treatment cylinder (200) and the water tank (100). The water circulation dosing mechanism (800) is used to control the amount of flocculant added according to the amount of sediment cleaned by the cleaning mechanism (600).

2. The wastewater treatment device for environmental engineering according to claim 1, characterized in that, The rotating component (300) includes a rotating rod (301) and guide pins (302). The end of the rotating rod (301) is rotatably connected to the center of the inner wall of the end of the processing cylinder (200). The two guide pins (302) are symmetrically and vertically installed on the rod wall near both ends of the rotating rod (301). The cleaning component (400) is slidably arranged along the guide pins (302).

3. The wastewater treatment device for environmental engineering according to claim 2, characterized in that, The cleaning component (400) includes a frame (402) with slots (401), a float (403), a pressure frame (404), and a filter cloth (405). Two slots (401) are symmetrically opened at the bottom of the frame (402) near both sides, and the frame (402) is slidably connected to the guide post (302) through the slots (401). Two pressure frames (404) are symmetrically arranged on both sides of the frame (402), and the pressure frames (404) are used to press the filter cloth (405) onto both sides of the frame (402). The float (403) is installed on the side wall of the frame (402) near the bottom.

4. The wastewater treatment device for environmental engineering according to claim 1, characterized in that, The cleaning mechanism (600) includes a rotating roller (602) with bristles (601), a first gear (603), a first motor (604), and a bracket (605). The two rotating rollers (602) are symmetrically arranged inside the strip-shaped housing (500). One end of the roller shaft of the rotating roller (602) is rotatably connected to the inner wall of the strip-shaped housing (500), and the other end of the roller shaft of the rotating roller (602) extends to the outer side of the strip-shaped housing (500) and is coaxially connected to the first gear (603). The two first gears (603) are meshed with each other. The first motor (604) is used to drive one of the first gears (603) to rotate, and the first motor (604) is connected to the outer end of the processing cylinder (200) through the bracket (605).

5. A wastewater treatment device for environmental engineering according to claim 2, characterized in that, The drive assembly (700) includes an external gear ring (701), a second gear (702), a second motor (703), a connecting frame (704), and a fixing ring (705). The external gear ring (701) is located outside the processing cylinder (200) and is coaxially arranged with it. One end of the rotating rod (301) is connected to the external gear ring (701) through the connecting frame (704), and the external gear ring (701) drives the rotating rod (301) to rotate coaxially through the connecting frame (704). The second motor (703) is installed on the outer wall of the processing cylinder (200). The second gear (702) is driven by the second motor (703), and the second gear (702) is meshed with the external gear ring (701). The fixing ring (705) is installed at the end of the processing cylinder (200), and the external gear ring (701) and the fixing ring (705) are rotatably sleeved.

6. A wastewater treatment device for environmental engineering according to claim 5, characterized in that, The connecting frame (704) includes an annular disk (7041), a pin (7042), and an L-shaped plate (7043). The pin (7042) passes through the end of the processing cylinder (200) and is coaxially connected to the rotating rod (301). The annular disk (7041) is coaxially connected to the pin (7042). A plurality of L-shaped plates (7043) are distributed circumferentially along the annular disk (7041), and the other end of the L-shaped plate (7043) is connected to the side wall of the external gear ring (701).

7. A wastewater treatment device for environmental engineering according to claim 1, characterized in that, The water circulation dosing mechanism (800) includes a drain pipe (802) with a drain valve (801), a circulation pump (803), a pumping pipe (804), a delivery pipe (805), and a dosing pipe (806). One end of the drain pipe (802) is connected to the top of the water tank (100), and the other end of the drain pipe (802) is connected to the side wall of the treatment cylinder (200). The circulation pump (803) is installed on the outer side wall of the water tank (100). The input end of the circulation pump (803) is connected to the inner cavity of the water tank (100) through the pumping pipe (804), and the output end of the circulation pump (803) is connected to the inner cavity of the treatment cylinder (200) through the delivery pipe (805). The dosing pipe (806) is vertically connected to the top of the delivery pipe (805).

8. A wastewater treatment device for environmental engineering according to claim 7, characterized in that, The dosing pipe (806) is equipped with a one-way valve (807) near the water supply pipe (805). Above the one-way valve (807) is a metering valve (808) that controls the amount of flocculant added, and the metering valve (808) is installed on the dosing pipe (806).

9. A wastewater treatment device for environmental engineering according to claim 4, characterized in that, The cleaning mechanism (600) also includes a negative pressure tee (606) and an air inlet (607). The two ends of the negative pressure tee (606) are symmetrically connected and disposed at one end of the strip housing (500) away from the first motor (604). The air inlet (607) is symmetrically disposed on the side wall of the strip housing (500) away from the negative pressure tee (606).

10. A wastewater treatment method for an environmental engineering wastewater treatment device according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Fill the treatment cylinder (200) with sewage, start the drive assembly (700) to drive the rotating part (300) to rotate, so that the cleaning part (400) moves circumferentially inside the treatment cylinder (200) to fully adsorb and capture the sediment in the water; Step 2: Adjust the cleaning component (400) to a vertically upward position. Under the buoyancy of the water in the treatment cylinder (200), the cleaning component (400) will automatically slide up along the rotating component (300) and pass through the strip-shaped shell (500). The cleaning mechanism (600) can clean and collect the sediment adsorbed and captured by the cleaning component (400). Step 3: After the sediment on the cleaning component (400) is cleaned, the water circulation dosing mechanism (800) is used to introduce some of the sewage in the treatment cylinder (200) into the water tank (100), so that the cleaning component (400) automatically slides down into the treatment cylinder (200) under the action of gravity. The circumferential movement of the cleaning component (400) is controlled. At the same time, according to the amount of sediment collected, the flocculant is precisely added into the treatment cylinder (200) in coordination with the water circulation dosing mechanism (800) to improve the sedimentation and treatment effect of sewage.

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