A sewage centralized treatment and recycling device

Abstract

The present application relates to sewage treatment device technical field, especially to a kind of cleaning sewage centralized treatment and reuse device.The technical scheme comprising cabinet, the water collecting pool, reaction pool and water collecting tank are equipped in the cabinet, conveying component for transporting sewage is installed on the cabinet, and it further includes desilting component installed at the bottom of water collecting pool, the desilting component includes horizontal drive mechanism, vertical drive mechanism installed on horizontal drive mechanism, isolation cover installed on vertical drive mechanism, rotating sealing component installed on one side of isolation cover, which seals the bottom of water collecting pool and pushes sludge into the interior of isolation cover.The present application solves the problem of pollutant resuspension and high sludge moisture content caused by traditional single-point suction, realizes high-concentration and low-disturbance extraction of sludge at the bottom of water collecting pool, significantly improves the pretreatment effect and reduces the subsequent sludge treatment load.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and in particular to a centralized treatment and reuse device for cleaning wastewater. Background Technology

[0002] In the field of industrial cleaning and wastewater reuse, centralized wastewater treatment and reuse systems have become key equipment for achieving water resource recycling and emission reduction. These systems typically include a collection tank for initial sedimentation and conditioning, a reaction tank for core biochemical degradation and sludge-water separation, and a collection tank for storing reused clean water. The collection tank, as a pretreatment unit, plays a crucial role in separating heavy solid particles from the wastewater through gravity sedimentation, thereby achieving load balancing and stable operation of subsequent treatment units.

[0003] Regarding the aforementioned technologies, the inventors believe that the existing sludge removal methods for collection tanks have significant drawbacks. The currently prevalent single-point suction method relies primarily on high-speed water flow generated by pumps to drive and extract sediment from the bottom of the tank. This method generates strong hydraulic disturbances in actual operation, easily causing settled solid pollutants to resuspend and diffuse into the water body, significantly reducing the pretreatment effect and exacerbating the treatment load on subsequent reaction tanks. More importantly, this "water-carrying-sludge" model necessitates the discharge of large amounts of wastewater to extract solids, resulting in extremely low sludge concentration in the discharged effluent. This not only greatly increases the overall volume and energy consumption of wastewater treatment but also reduces sludge removal efficiency, creating a vicious cycle of "secondary pollution" and "low efficiency." Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a centralized treatment and reuse device for cleaning wastewater that solves the problems of easy resuspension of pollutants and excessively high water content in sludge in the prior art.

[0005] The technical solution of the present invention: A centralized treatment and reuse device for cleaning wastewater, comprising a chassis, wherein the chassis is provided with a collection tank, a reaction tank and a collection container, and a conveying component for transferring wastewater is installed on the chassis, and further comprising:

[0006] The sludge removal component installed at the bottom of the collection tank includes a horizontal drive mechanism, a vertical drive mechanism installed on the horizontal drive mechanism, and an isolation cover installed on the vertical drive mechanism. The horizontal drive mechanism and the vertical drive mechanism respectively drive the isolation cover to move in the horizontal and vertical directions.

[0007] A rotary sealing component installed on one side of the isolation cover seals the isolation cover and the bottom of the collection tank and pushes the sludge into the interior of the isolation cover. The rotary sealing component includes a rotating shaft installed inside the isolation cover and a power component that drives the rotating shaft to rotate. Multiple elastically telescopic rods are fixedly installed in a circumferential array on the rotating shaft, and sealing strips are fixedly installed on the telescopic rods.

[0008] A bucket module is fixedly installed on an isolation cover. The bucket module includes a triangular hollow plate with a top plate fixedly installed on it. The top plate has multiple suction holes and a suction pump is connected to the plate.

[0009] By adopting the above technical solution, the dredging component forms a closed working area through the isolation cover. The rotating sealing component dynamically seals and pushes the sludge into the isolation cover during the movement, while the bucket module efficiently extracts the sludge, thereby achieving low-disturbance, high-concentration sludge extraction and avoiding the problems of pollutant resuspension and high water content in the discharged sludge.

[0010] Optionally, the telescopic rod includes a sleeve fixedly installed on a rotating shaft, a slider slidably installed inside the sleeve, an extension rod fixedly installed on the slider, an elastic element fixedly installed between the slider and the sleeve, and a sealing strip fixedly connected to the extension rod.

[0011] By adopting the above technical solution, the telescopic rod uses the elastic force of the elastic element to ensure that the sealing strip is always in close contact with the bottom of the water collection tank, adapting to the uneven surface of the tank bottom and ensuring the dynamic sealing effect of the rotating sealing component during the movement process.

[0012] Optionally, an arc-shaped plate is fixedly installed on the isolation cover, and the sealing strip abuts against the inner wall of the arc-shaped plate under the elastic force of the elastic element.

[0013] By adopting the above technical solution, the arc-shaped plate and the sealing strip work together to form multiple sealing barriers during rotation, further preventing the leakage of silt and water inside the isolation cover and improving the sealing reliability.

[0014] Optionally, the power assembly includes a first gear fixedly mounted on a rotating shaft and a second gear rotatably mounted inside an isolation cover and meshing with the first gear. A first motor is fixedly mounted inside the isolation cover, and the output shaft of the first motor is coaxially and fixedly connected to the second gear.

[0015] By adopting the above technical solution, the power component smoothly drives the rotating shaft to rotate through gear transmission, ensuring the continuous operation of the rotating sealing component. The structure is compact and the transmission efficiency is high.

[0016] Optionally, a connection hole is provided on one side of the plate, and the connection hole is connected to the input end of the adsorption pump through a delivery pipe. The output end of the adsorption pump is connected to a sludge thickening device.

[0017] By adopting the above technical solution, the connecting hole and the adsorption pump work together to directly transport the extracted sludge to the sludge thickening device, realizing the rapid removal and thickening of sludge, reducing intermediate steps and improving processing efficiency.

[0018] Optionally, a sealing plate assembly for controlling the sealing state of the adsorption holes is installed inside the plate. The sealing plate assembly includes multiple sealing plates that are slidably installed inside the plate, a synchronization plate that is fixedly installed on the multiple sealing plates, a first push rod motor that is rotatably installed inside the plate, the output shaft of the first push rod motor being rotatably connected to the synchronization plate, and a pressure sensor that is fixedly installed on the sealing plate located on the side away from the rotating sealing component.

[0019] By adopting the above technical solution, the sealing plate assembly detects the amount of sludge through a pressure sensor, controls the push rod motor to drive the sealing plate to move, realizes the intelligent opening and closing of the adsorption holes, thereby discharging sludge as needed and optimizing energy and water consumption.

[0020] Optionally, the isolation cover is provided with multiple drainage holes, and a guide pipe is fixedly installed on the drainage holes, with a filter screen fixedly installed on the top of the guide pipe.

[0021] By adopting the above technical solution, the guide pipe and filter screen constitute a mud-water separation unit, which allows water to pass through while retaining solids, thereby increasing the solids content of the discharged sludge and reducing water loss.

[0022] Optionally, a stirring mechanism is fixedly installed on both sides of the isolation cover. The stirring mechanism includes a second motor fixedly installed on the isolation cover and a stirring blade rotatably installed inside the isolation cover. The output shaft of the second motor is coaxially and fixedly connected to the stirring blade.

[0023] By adopting the above technical solution, the stirring mechanism stirs the sludge in the isolation cover, so that the mud and water are fully mixed, which makes it easier for the adsorption pump to extract the high-concentration mixture, while avoiding sludge caking.

[0024] Optionally, the horizontal drive mechanism includes a third motor fixedly installed outside the chassis, a lead screw rotatably installed inside the water collection tank and coaxially fixedly connected to the output shaft of the third motor, a guide rod fixedly installed inside the water collection tank, and a support frame slidably installed on the guide rod and threadedly connected to the lead screw. Both ends of the support frame are fixedly installed with first corrugated pipes, and the lead screw and guide rod are both located inside the first corrugated pipes. Both ends of the support frame are fixedly installed with telescopic rods, and the other end of the telescopic rods is fixedly connected to the isolation cover.

[0025] The vertical drive mechanism includes a second push rod motor that is fixedly mounted on the support frame via a mounting base. The output shaft of the second push rod motor is fixedly connected to the isolation cover, and a second corrugated pipe is fixedly mounted on the outside of the second push rod motor.

[0026] By adopting the above technical solution, the horizontal drive mechanism realizes the precise movement of the support frame through the lead screw and guide rod. The first bellows protects the internal mechanism from contamination and ensures the stability and reliability of the horizontal movement of the isolation cover. The vertical drive mechanism controls the lifting and lowering of the isolation cover through the push rod motor. The second bellows provides protection and ensures the precise positioning and sealing of the isolation cover in the vertical direction.

[0027] Optionally, the conveying component includes two first pump sets for conveying substances in the water collection tank and the reaction tank, and a second pump set for conveying clean water in the reaction tank to the water collection tank.

[0028] The first pump set includes a first pump body fixedly installed on the chassis, a first inlet pipe fixedly installed on the input end of the first pump body, and a first output pipe fixedly installed on the output end of the first pump body. The input ends on the two first pump bodies are in opposite directions.

[0029] The second pump set includes a second pump body fixedly installed on the chassis, a second water inlet pipe fixedly installed on the input end of the second pump body, and a second water outlet pipe fixedly installed on the output end of the second pump body. The reaction tank is provided with a chute, and a floating block is slidably installed in the chute. The second water inlet pipe passes through the floating block and is fixedly connected to the floating block.

[0030] By adopting the above technical solution, the conveying component realizes the material exchange between the water collection tank and the reaction tank through two first pump sets, and the second pump set extracts the supernatant through the floating block, reducing disturbance to the bottom of the reaction tank and ensuring the stability of water quality.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. By designing the sludge removal components and their isolation covers, the problems of pollutant resuspension and high sludge moisture content caused by traditional single-point suction are fundamentally solved. This enables high-concentration, low-disturbance extraction of sludge from the bottom of the collection tank, significantly improving the pretreatment effect and reducing the subsequent sludge treatment load.

[0033] 2. Through the collaboration of the rotary sealing component and the bucket module, continuous automated operation of dynamic sealing-guided collection-quantitative discharge is realized, which not only improves the dredging efficiency, but also realizes on-demand sludge discharge through the intelligent cooperation of the pressure sensor and the sealing plate assembly, greatly optimizing energy consumption and water resource consumption.

[0034] 3. The design of the guide pipe and filter screen forms a micro-circulation mud-water separation unit inside the isolation cover, allowing water to pass through while retaining solids, further improving the solids content of the discharged sludge. The entire sludge removal system completes operations that are prone to disturbance, such as stirring and extraction, within a completely enclosed isolation cover, strictly limiting the negative impact to a local space, ensuring the stability of the main water body in the collection tank, and thus improving the system operation stability and treatment efficiency of the entire reuse device. Attached Figure Description

[0035] Figure 1 Schematic diagram of a centralized wastewater treatment and reuse device. Figure 1 ;

[0036] Figure 2 Schematic diagram of a centralized wastewater treatment and reuse device. Figure 2 ;

[0037] Figure 3 This is a structural diagram of the dredging component;

[0038] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0039] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;

[0040] Figure 6 This is a schematic diagram of the horizontal drive mechanism;

[0041] Figure 7 This is a schematic diagram of the power assembly structure;

[0042] Figure 8 This is a structural diagram of the bucket module;

[0043] Figure 9 This is a structural schematic diagram of the sealing plate assembly;

[0044] Figure 10 This is a schematic diagram of the stirring mechanism.

[0045] Attached reference numerals: 1. Chassis; 11. Water collection tank; 12. Reaction tank; 121. Air plate; 13. Water collection container;

[0046] 2. Conveying components; 21. First pump set; 211. First pump body; 212. First inlet pipe; 213. First outlet pipe;

[0047] 22. Second pump unit; 221. Second pump body; 222. Second inlet pipe; 223. Second outlet pipe; 224. Float block; 225. Slide chute;

[0048] 3. Dredging components; 31. Horizontal drive mechanism; 311. Third motor; 312. Lead screw; 313. Guide rod; 314. First bellows; 315. Support frame; 316. Telescopic rod; 317. Isolation cover; 32. Vertical drive mechanism; 321. Mounting base; 322. Second push rod motor; 323. Second bellows; 33. Rotary sealing component; 331. Rotating shaft; 332. Sleeve; 333. Slider; 334. Extension rod; 335. Sealing strip; 336. Spring Components; 337, Arc plate; 34, Power assembly; 341, First gear; 342, Second gear; 343, First motor; 35, Bucket module; 351, Plate body; 352, Top plate; 353, Adsorption hole; 354, Connection hole; 36, Sealing plate assembly; 361, Sealing plate; 362, Synchronization plate; 363, First push rod motor; 37, Pressure sensor; 38, Stirring mechanism; 381, Second motor; 382, ​​Stirring blade; 39, Guide pipe; 391, Filter screen. Detailed Implementation

[0049] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0050] Example: Figure 1 and Figure 2 As shown, the present invention proposes a centralized treatment and reuse device for cleaning wastewater, including a casing 1. The casing 1 is equipped with a water collection tank 11, a reaction tank 12 and a water collection container 13. The water collection tank 11 is used to collect and balance cleaning wastewater from different time periods. It uses gravity sedimentation to achieve preliminary physical separation, so that heavy solid particles in the wastewater settle to the bottom of the tank. It can also effectively balance the fluctuations in water quality and quantity of subsequent treatment units, and receive and preliminarily digest the residual sludge returned from the reaction tank.

[0051] The reaction tank 12 periodically completes aeration within the tank, utilizes microorganisms to decompose organic matter, and achieves processes such as mud-water separation and drainage through sedimentation. It can efficiently remove organic pollutants from the water and achieve deep treatment such as nitrogen and phosphorus removal, ultimately producing a clear supernatant. Multiple air plates 121 are fixedly installed at the bottom of the reaction tank 12. The air plates 121 are hollow and have multiple air holes at the top. The air plates 121 are connected to an air pump system. By supplying air to the air plates 121 through the air pump, the reaction tank 12 can be aerated.

[0052] The water collection tank 13 is responsible for receiving and storing the supernatant discharged from the reaction tank.

[0053] The casing 1 is equipped with a sewage conveying component 2, which pumps water from the collection tank 11 into the reaction tank 12 and extracts the supernatant produced after aeration and sedimentation in the reaction tank 12 into the collection tank 13 for storage.

[0054] The conveying component 2 includes two first pump sets 21 for conveying substances in the water collection tank 11 and the reaction tank 12, and a second pump set 22 for conveying clean water in the reaction tank 12 to the water collection tank 13. The first pump set 21 exchanges substances between the water collection tank 11 and the reaction tank 12, and the second pump set 22 draws the supernatant in the reaction tank 12 into the water collection tank 13.

[0055] Furthermore, the first pump set 21 includes a first pump body 211 fixedly installed on the casing 1, a first water inlet pipe 212 fixedly installed on the input end of the first pump body 211, and a first output pipe 213 fixedly installed on the output end of the first pump body 211. The input ends of the two first pump bodies 211 are in opposite directions. Water inside the water collection tank 11 can be pumped into the reaction tank 12 for reaction through one of the first pump bodies 211, and some of the sediment in the reaction tank can be pumped into the water collection tank 11 through the other first pump body 211, which can prevent a large amount of sediment from continuously accumulating in the reaction tank 12.

[0056] Furthermore, the second pump unit 22 includes a second pump body 221 fixedly installed on the casing 1, a second inlet pipe 222 fixedly installed on the input end of the second pump body 221, and a second outlet pipe 223 fixedly installed on the output end of the second pump body 221. The supernatant inside the reaction tank 12 can be extracted through the second pump body 221 and transported to the water collection tank 13. The reaction tank 12 is provided with a chute 225, and a float block 224 is slidably installed in the chute 225. The second inlet pipe 222 passes through the float block 224 and is fixedly connected to the float block 224. Through the buoyancy of the float block 224, the end of the second inlet pipe 222 can always be located on the surface of the supernatant, so that the supernatant can be extracted from the top, reducing the disturbance to the water body and preventing the supernatant from mixing with the sediment again.

[0057] As one implementation method, such as Figures 3 to 6 As shown, the wastewater centralized treatment and reuse device of this embodiment also includes a sludge removal component 3 installed at the bottom of the collection tank 11. The sludge removal component 3 includes a horizontal drive mechanism 31, a vertical drive mechanism 32 installed on the horizontal drive mechanism, and an isolation cover 317 installed on the vertical drive mechanism 32. The horizontal drive mechanism 31 and the vertical drive mechanism 32 respectively drive the isolation cover 317 to move in the horizontal and vertical directions. The isolation cover 317 can block part of the space at the bottom of the collection tank 11. The stirring and extraction of the sediment inside the space will not disturb the water outside the isolation cover 317. It can effectively extract the sediment at the bottom of the water body, prevent large-scale water disturbance, and avoid the sediment from being suspended in the water body again.

[0058] Furthermore, the horizontal drive mechanism 31 includes a third motor 311 fixedly installed outside the housing 1, a lead screw 312 rotatably installed inside the water collection tank 11 and coaxially fixedly connected to the output shaft of the third motor 311, a guide rod 313 fixedly installed inside the water collection tank 11, and a support frame 315 slidably installed on the guide rod 313 and threadedly connected to the lead screw 312. The third motor 311 can drive the lead screw 312 to rotate, and the rotating lead screw 312 will drive the support frame 315 to move under the action of the threaded connection. Under the limiting action of the guide rod 313, the support frame 315 will move along the axial direction of the guide rod 313. The support frame 315 can move horizontally by moving the isolation cover 317 connected to it. Both ends of the support frame 315 are fixedly installed with first corrugated pipes 314. The lead screw 312 and guide rod 313 are located inside the first corrugated pipes 314. They can contract and deform as the support frame 315 moves, and can prevent water and sediment from contaminating the lead screw 312 and guide rod 313. Both ends of the support frame 315 are fixedly installed with telescopic rods 316. The other end of the telescopic rod 316 is fixedly connected to the isolation cover 317, so that the isolation cover 317 can move along the axis of the telescopic rod 316, that is, the isolation cover 317 can move vertically.

[0059] Furthermore, the vertical drive mechanism 32 includes a second push rod motor 322 fixedly mounted on the support frame 315 via a mounting base 321. The output shaft of the second push rod motor 322 is fixedly connected to the isolation cover 317. The second push rod motor 322 can drive the isolation cover 317 to move up and down. A second corrugated pipe 323 is fixedly mounted on the outside of the second push rod motor 322. The second corrugated pipe can protect the second push rod motor 322 and prevent water from affecting the second push rod motor 322.

[0060] like Figures 4 to 7 As shown, the isolation cover 317 needs to move at the bottom of the water collection tank 11 to completely extract the sediment at the bottom of the water collection tank 11. When the isolation cover 317 moves, it is necessary to keep the isolation cover 317 and the bottom of the water collection tank 11 sealed at all times to prevent the sediment inside the isolation cover 317 from being disturbed and flowing out. If only the vertical sealing element at the bottom of the isolation cover 317 is used, the complete sealing inside the isolation cover 317 can be guaranteed. However, as the isolation cover 317 moves, the sediment will be pushed to move under the action of the sealing element, preventing the sediment from entering the interior of the isolation cover 317. This creates a contradiction between the sealing of the isolation cover 317 and the need for unidirectional flow of sediment.

[0061] As one implementation, the centralized treatment and reuse device for cleaning wastewater also includes a rotating sealing component 33 installed on one side of the isolation cover 317 to seal the bottom of the isolation cover 317 and the collection tank 11 and push the sludge into the interior of the isolation cover 317. The rotating sealing component 33 solves the aforementioned contradiction, allowing the interior of the isolation cover 317 to remain sealed while pushing the sediment at the bottom of the collection tank 11 into the interior of the isolation cover 317. The rotating sealing component 33 includes a rotating shaft 331 rotatably installed inside the isolation cover 317 and a power assembly 34 driving the rotating shaft 331 to rotate. Multiple elastically extendable telescopic rods are fixedly installed in a circumferential array on the rotating shaft 331, and sealing strips 335 are fixedly installed on the telescopic rods. Component 34 can drive the rotating shaft 331 to rotate, and the rotating shaft 331 will drive multiple telescopic rods to rotate, causing multiple sealing strips 335 to rotate in a circle. The telescopic rods are elastic and extensible, which means that when the sealing strips 335 come into contact with the bottom of the water collection tank 11, the telescopic rods will retract and can return to their original position when there is no resistance. This allows multiple sealing strips 335 to contact the bottom of the water collection tank 11 at the same time. It is necessary to ensure that at least one sealing strip 335 can keep in contact with the bottom of the water collection tank 11 at the same time, so that the isolation cover 317 can always be kept sealed. The sealing strips rotate inward into the isolation cover 317, which can push the sediment into the interior of the isolation cover 317.

[0062] Furthermore, the telescopic rod includes a sleeve 332 fixedly installed on the rotating shaft 331. A slider 333 is slidably installed inside the sleeve 332. An extension rod 334 is fixedly installed on the slider 333. The extension rod 334 can slide on the sleeve 332, thereby changing the overall length of the telescopic rod. An elastic element 336, which is a spring, is fixedly installed between the slider 333 and the sleeve 332. Under the action of the spring force, the slider 333 tends to move outward. The sealing strip 335 is fixedly connected to the extension rod 334, so that the sealing strip 335 can move with the extension rod 334.

[0063] An arc-shaped plate 337 is fixedly installed on the isolation cover 317. The sealing strip 335 abuts against the inner wall of the arc-shaped plate 337 under the elastic force of the elastic member 336. Under the action of the arc-shaped plate 337, multiple sealing strips 335 can contact the arc-shaped plate 337 at the same time, so that the rotating sealing component 33 can simultaneously seal the gap at the bottom of the water collection pool 11 and the gap at the bottom of the isolation cover 317, effectively ensuring the sealing performance of the isolation cover 317.

[0064] Furthermore, the power assembly 34 includes a first gear 341 fixedly mounted on the rotating shaft 331 and a second gear 342 rotatably mounted inside the isolation cover 317 and meshing with the first gear 341. A first motor 343 is fixedly mounted inside the isolation cover 317. The output shaft of the first motor 343 is coaxially and fixedly connected to the second gear 342. The first motor 343 can drive the second gear 342 to rotate, and the meshing transmission of the gears can drive the first gear 341 to rotate. The rotating first gear 341 can drive the rotating shaft 331 to rotate, thereby causing the multiple sealing strips 335 to rotate in a circular motion.

[0065] As one implementation method, such as Figure 5 , Figure 8 , Figure 9 As shown, the centralized treatment and reuse device for cleaning wastewater also includes a bucket module 35 fixedly installed on the isolation cover 317. The bucket module 35 includes a triangular hollow plate 351, on which a top plate 352 is fixedly installed. The top plate 352 is provided with multiple adsorption holes 353. The triangular design of the hollow plate 351 allows the sediment pushed into the isolation cover 317 to move to the top of the hollow plate 351 and then to the top plate 352. At this time, under the action of water pressure and gravity, the sediment can easily pass through the top plate 352 into the interior of the hollow plate 351. This will facilitate the drainage of the sediment and reduce the amount of water required to extract the sediment. The plate 351 is connected to an adsorption pump, which can generate suction on the mixture of sediment and water, making it easier to discharge the sediment.

[0066] One side of the plate 351 is provided with a connection hole 354. The connection hole 354 is connected to the input end of the adsorption pump through a conveying pipe. The output end of the adsorption pump is connected to a sludge thickening device. The sediment that enters the hollow plate 351 through the adsorption hole 353 will be discharged through the connection hole. The sludge thickening device performs post-treatment on the sediment. The sludge thickening device is an existing device and will not be described in detail here.

[0067] like Figure 5As shown, in this embodiment, a sealing plate assembly 36 is installed inside the plate body 351 to control the blocking state of the adsorption holes 353. The sealing plate assembly 36 controls whether the adsorption holes 353 can flow, thereby controlling whether the sludge can pass through the adsorption holes 353, so that a sufficient mass of sludge can be pushed onto the top plate 352 and discharged in one go, and the amount of water required to discharge the sludge can be achieved. The sealing plate assembly 36 includes multiple sealing plates 361 slidably installed inside the plate body 351. When the sealing plates 361 are below the adsorption holes, they will block the adsorption holes 353. When the sealing plates 361 are misaligned with the adsorption holes 353, the adsorption holes 353 can be allowed to flow. A synchronization plate 362 is fixedly installed on the multiple sealing plates 361. The synchronization plate 362 causes the multiple sealing plates 361 to move synchronously, and the plate body 351 rotates. A first push rod motor 363 is installed, and the output shaft of the first push rod motor 363 is rotatably connected to the synchronous plate 362. The extension and retraction of the first push rod motor 363 can control the movement of the sealing plate 361, thereby controlling whether the sealing plate 361 blocks the adsorption hole 353. A pressure sensor 37 is fixedly installed on the sealing plate 361 located on the side away from the rotating sealing component 33. The pressure sensor 37 is located on the top of the top plate 352. When the sludge moves to the side of the pressure sensor 37, the pressure sensor 37 can detect a value. By judging this value, the amount of sludge inside the isolation cover 317 can be judged. When the set value is reached, the first push rod motor 363 can be controlled to drive the sealing plate 361 to move, so that the sealing plate 361 is misaligned with the adsorption hole 353, allowing the sludge to be discharged through the adsorption hole 353.

[0068] like Figure 3 As shown, in this embodiment, the isolation cover 317 is provided with multiple discharge holes, and a guide pipe 39 is fixedly installed on the discharge holes. A filter screen 391 is fixedly installed on the top of the guide pipe 39. Water continuously entering the isolation cover 317 will enter the guide pipe 39 and rise along the guide pipe 39. During the rising process, the sludge inside the water body can move downward, achieving the effect of mud-water separation. The sludge is filtered and blocked by the filter screen 391, which can prevent the sludge that has entered the isolation cover 317 from being discharged again. When the sludge inside the isolation cover 317 is discharged, water can be drawn from the top of the water collection tank 11 through the guide pipe 39, so that the water inside the isolation cover 317 can circulate.

[0069] like Figure 10As shown in this embodiment, stirring mechanisms 38 are fixedly installed on both sides of the isolation cover 317. The stirring mechanism 38 includes a second motor 381 fixedly installed on the isolation cover 317 and a stirring blade 382 rotatably installed inside the isolation cover 317. The output shaft of the second motor 381 is coaxially and fixedly connected to the stirring blade 382. By driving the stirring blade 382 to rotate through the second motor 381, the water can be stirred, so that the mud and water are fully mixed and discharged. Under the action of the isolation cover 317, it will not have any impact on the outside of the isolation cover 317, which facilitates the discharge of sludge and reduces the amount of water when discharging sludge, thus reducing the water content during subsequent sludge treatment.

[0070] Working principle: Wastewater first enters the collection tank 11 for preliminary sedimentation and water quality equalization. Then, the first pump set 21 in the conveying component 2 pumps the upper wastewater into the reaction tank 12. In the reaction tank 12, periodic aeration is carried out through the air plate 121, utilizing microorganisms to degrade organic matter. Subsequently, static sedimentation completes the sludge-water separation. The supernatant after sedimentation is pumped by the second pump set 22 through the second inlet pipe 222, which floats with the floating block 224, to the collection tank 13 for storage and reuse. This effectively prevents disturbance of the sludge at the bottom of the tank during extraction. The horizontal drive mechanism 31 and the vertical drive mechanism 32 work together to drive the isolation cover 317 to move above the sludge and lower it, forming a closed working area. The rotating sealing component 33 is then activated, and its rotating shaft 331 drives the component equipped with... The telescopic rod of the sealing strip 335 rotates, and under the action of the elastic element 336, the sealing strip 335 is always in close contact with the bottom of the water collection tank 11 and the arc plate 337, realizing dynamic sealing. At the same time, the sludge is pushed into the isolation cover 317 in one direction. The sludge entering the isolation cover is guided to the top plate 352 of the bucket module 35. When the pressure sensor 37 detects that the amount of sludge has reached the set value, the first push rod motor 363 of the sealing plate assembly 36 is activated, opening the adsorption hole 353. At the same time, the adsorption pump starts, and with the assistance of the stirring mechanism 38, the high-concentration mud-water mixture is sucked out and transported to the subsequent sludge thickening device through the connection hole 354. The whole process is carried out in the closed environment of the isolation cover 317, realizing efficient and low-disturbance sludge cleaning.

[0071] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sewage centralized treatment and reuse device, comprising a machine box (1), a water collecting pool (11), a reaction pool (12) and a water collecting tank (13) are arranged in the machine box (1), a conveying component (2) for transferring sewage is arranged on the machine box (1), characterized in that, Also include: The dredging component (3) is installed at the bottom of the water collecting pool (11), the dredging component (3) includes horizontal drive mechanism (31), vertical drive mechanism (32) installed on horizontal drive mechanism, isolation cover (317) installed on vertical drive mechanism (32), the horizontal drive mechanism (31) and vertical drive mechanism (32) drive isolation cover (317) to move in horizontal and vertical direction respectively; The rotary sealing component (33) is installed on one side of the isolation cover (317), which seals the isolation cover (317) and the bottom of the water collecting pool (11) and pushes the sludge into the inside of the isolation cover (317), the rotary sealing component (33) includes a rotating shaft (331) rotatably installed in the inside of the isolation cover (317) and a power assembly (34) driving the rotating shaft (331) to rotate, a plurality of elastic telescopic telescopic rod members are fixedly installed on the rotating shaft (331) in circumferential array, and a sealing strip (335) is fixedly installed on the telescopic rod member; The shovel module (35) is fixedly installed on the isolation cover (317), the shovel module (35) includes a triangular hollow plate body (351), a top plate (352) is fixedly installed on the plate body (351), a plurality of adsorption holes (353) are formed in the top plate (352), and the plate body (351) is connected with an adsorption pump.

2. The apparatus for centralized treatment and reuse of sewage according to claim 1, characterized in that, The telescopic rod member includes a sleeve (332) fixedly installed on the rotating shaft (331), a sliding block (333) is slidably installed in the sleeve (332), an extension rod (334) is fixedly installed on the sliding block (333), an elastic member (336) is fixedly installed between the sliding block (333) and the sleeve (332), and the sealing strip (335) is fixedly connected with the extension rod (334).

3. The apparatus according to claim 2, wherein the apparatus is characterized by: The isolation cover (317) is fixedly installed with an arc-shaped plate (337), and the sealing strip (335) abuts against the inner wall of the arc-shaped plate (337) under the elastic force of the elastic member (336).

4. The apparatus according to claim 3, wherein the apparatus is characterized by: The power assembly (34) includes a first gear (341) fixedly installed on the rotating shaft (331), a second gear (342) rotatably installed in the isolation cover (317) and engaged with the first gear (341), a first motor (343) is fixedly installed in the isolation cover (317), and the output shaft of the first motor (343) is fixedly connected with the second gear (342) coaxially.

5. The apparatus according to claim 4, wherein the apparatus is characterized by: One side of the plate body (351) is provided with a connecting hole (354), the connecting hole (354) is connected with the input end of the adsorption pump through a conveying pipe, and the output end of the adsorption pump is connected with a sludge concentration device.

6. The apparatus according to claim 5, wherein the apparatus is characterized by: A plurality of sealing plates (361) are slidably installed in the plate body (351), a synchronous plate (362) is fixedly installed on the plurality of sealing plates (361), a first push rod motor (363) is rotatably installed in the plate body (351), an output shaft of the first push rod motor (363) is rotatably connected with the synchronous plate (362), and a pressure sensor (37) is fixedly installed on the sealing plate (361) away from the rotary sealing component (33).

7. The apparatus according to claim 6, wherein the apparatus is characterized by: A plurality of exhaust holes are formed in the isolation cover (317), a flow guide pipe (39) is fixedly installed on the exhaust hole, and a filter screen (391) is fixedly installed on the top of the flow guide pipe (39).

8. The apparatus according to claim 7, wherein the apparatus is characterized by: Both sides of the isolation cover (317) are fixedly installed with a stirring mechanism (38), the stirring mechanism (38) comprises a second motor (381) fixedly installed on the isolation cover (317) and a stirring blade (382) rotatably installed in the isolation cover (317), and an output shaft of the second motor (381) is fixedly connected with the stirring blade (382) in a same axis.

9. The apparatus according to claim 8, wherein the apparatus is characterized by: The horizontal driving mechanism (31) comprises a third motor (311) fixedly installed outside the cabinet (1), a screw rod (312) rotatably installed in the water collecting pool (11) and fixedly connected with an output shaft of the third motor (311) in a same axis, a guide rod (313) fixedly installed in the water collecting pool (11), a support frame (315) slidably installed on the guide rod (313) and threadedly connected with the screw rod (312), first bellows (314) fixedly installed at both ends of the support frame (315), and the screw rod (312) and the guide rod (313) are located in the first bellows (314), and telescopic rods (316) are fixedly installed at both ends of the support frame (315) and fixedly connected with the isolation cover (317) at the other end. The vertical driving mechanism (32) comprises a second push rod motor (322) fixedly installed on the support frame (315) through a mounting seat (321), an output shaft of the second push rod motor (322) is fixedly connected with the isolation cover (317), and a second bellows (323) is fixedly installed outside the second push rod motor (322).

10. The apparatus according to claim 9, wherein the apparatus is characterized by: The conveying component (2) comprises two first pump groups (21) for conveying substances in the water collecting pool (11) and the reaction pool (12) and a second pump group (22) for conveying clean water in the reaction pool (12) to the water collecting tank (13). The first pump group (21) comprises first pump bodies (211) fixedly installed on the cabinet (1), first water inlet pipes (212) fixedly installed on input ends of the first pump bodies (211), and first output pipes (213) fixedly installed on output ends of the first pump bodies (211), and the input ends of the two first pump bodies (211) are opposite to each other. The second pump group (22) comprises a second pump body (221) fixedly installed on the cabinet (1), a second water inlet pipe (222) fixedly installed on an input end of the second pump body (221), and a second water outlet pipe (223) fixedly installed on an output end of the second pump body (221), wherein the reaction tank (12) is internally provided with a chute (225), the chute (225) is internally slidably provided with a floating block (224), and the second water inlet pipe (222) penetrates through the floating block (224) and is fixedly connected with the floating block (224).

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