Overflow sewage on-site treatment device

Abstract

The invention discloses an in-situ treatment device for overflow sewage. The in-situ treatment device comprises a regulation and storage tank, a flow guide impurity filtering mechanism, a self-floating overflow treatment mechanism and a sewage discharge mechanism, the flow guide and impurity filtering mechanism is fixedly assembled in the regulation and storage tank and used for conducting flow guide and self-cleaning filtering on inlet water of the regulation and storage tank, the flow guide and impurity filtering mechanism comprises a filtering grating, the filtering grating is fixedly assembled at a water inlet of the regulation and storage tank, and a pair of scrubbing rollers is rotationally assembled above the filtering grating; and an impurity removal roller is arranged on one side of the scrubbing roller. And the self-floating overflow treatment mechanism is assembled below the filter grating. By arranging the flow guide impurity filtering mechanism and the self-floating type overflow treatment mechanism, suspended impurities in overflow sewage can be guided out in an auxiliary mode, the smoothness of the overflow sewage is improved, meanwhile, floating type aeration treatment can be conducted on the storage pond, the effect of on-site treatment on the overflow sewage is improved, and the service life of the storage pond is prolonged. The high efficiency of filtering treatment on the overflow sewage is obviously improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of overflow sewage treatment, and particularly relates to an in-situ treatment device for overflow sewage. Background Art

[0002] Combined sewer overflow pollution is usually also referred to as CSO (Combined System Overflow). It refers to the pipe network basin system in the urban drainage system with a combined system. On sunny days, since the sewage flow in the drainage pipes is relatively small, it can be transported to the downstream sewage treatment plant through the intercepting pipe for relevant treatment. However, on rainy days, when the flow exceeds the design capacity of the pipe network system, an overflow phenomenon will occur, and the pollutants remaining and deposited in the pipe system on sunny days will be carried away and directly flow into the surrounding water bodies without any treatment, causing pollution to them. The pollutants discharged into the water bodies by combined sewer pipe overflow pollution have seriously threatened the water body ecological environment and had a great impact on the restoration of water body functions and the regulation of ecological balance. Since CSO includes urban sewage, industrial wastewater, rainwater, as well as the rotten sludge accumulated in the pipes on sunny days and the pollutants carried by the washing of the atmosphere and the ground on rainy days, the rain-sewage mixed water overflowed therefrom is very different from domestic sewage, and there are many factors affecting the pollutant concentration, with a relatively large fluctuation range.

[0003] Through investigation and research, it can be known that the main influencing factors of combined sewer pipe overflow pollution include the following aspects: rainfall characteristics, excessive hardening of the urban underlying surface, pipe sediments, and interception ratio. And the in-situ treatment device for overflow sewage is exactly a kind of equipment used to treat overflow sewage.

[0004] The common in-situ treatment devices for overflow sewage in the prior art mainly consist of grid filtration, sedimentation clarification, and biological adsorption and degradation. For example, the patent with the patent announcement number: CN220149425U discloses an in-situ treatment device for overflow sewage. When such equipment recovers and treats overflow sewage, it usually uses the method of grid or filter screen filtration to isolate and filter the ground garbage such as tree branches and leaves and domestic garbage contained in the overflow sewage. However, since there are many types of pollutants and complex components in the overflow sewage, it is easy to be affected by the pollutants at the initial stage of in-situ treatment of the overflow sewage, resulting in the risk of poor circulation or blockage, and the treatment effect of the in-situ treatment device for overflow sewage is poor.

[0005] The information disclosed in this background art section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] The object of the present invention is to provide an on-site overflow sewage treatment device, which can improve the sewage fluidity in the initial stage of on-site overflow sewage treatment, thereby improving the treatment effect of the on-site overflow sewage treatment device.

[0007] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0008] An on-site overflow sewage treatment device comprises: a regulating storage tank, a diversion and filtering mechanism, a self-floating overflow treatment mechanism and a sewage discharge mechanism.

[0009] The diversion and impurity filtering mechanism is fixedly installed in the regulating reservoir, and is used to divert and self-clean the incoming water of the regulating reservoir. The diversion and impurity filtering mechanism includes a filter grid, and the filter grid is fixedly installed at the water inlet of the regulating reservoir. A pair of brush rollers are rotatably installed above the filter grid, and a debris removal roller is arranged on one side of the brush roller.

[0010] The self-floating overflow treatment mechanism is installed below the filter grid. The self-floating overflow treatment mechanism is used to adsorb and remove pollutants floating on the surface of the sewage after filtering the filter grid. At the same time, the sewage can be aerated and purified. The self-floating overflow treatment mechanism includes multiple groups of debris removal floats, and the multiple groups of debris removal floats are arranged below the filter grid. A debris discharge pipe is fixedly connected above the debris removal floats, and a self-cleaning aeration filter unit is arranged on one side of the multiple groups of debris removal floats.

[0011] The sewage discharge mechanism is assembled below the multiple groups of debris removal floats, and is used to clean and discharge the sludge at the bottom of the storage tank.

[0012] In one or more embodiments of the present invention, a guide plate is fixedly installed within the regulating reservoir. The lower surface of the guide plate cooperates with the regulating reservoir to form a biological purification chamber. This facilitates biological purification of the sewage after sedimentation and filtration in the biological purification chamber. The bottom of the biological purification chamber is provided with biological purification filler. The biological purification filler is used to biologically purify the sewage.

[0013] In one or more embodiments of the present invention, the horizontal height of one side of the water inlet of the regulating and storage tank is lower than the horizontal height of the other side. By setting the water inlet of the regulating and storage tank at an angle, the smoothness of the overflow sewage entering the filter purification chamber is ensured. At the same time, the overflow sewage can flush the filter grille during the flow process, and can flush the impurities separated on the filter grille, thereby ensuring the smooth conduction of the filter grille. A pair of guide baffles are fixedly connected to the regulating and storage tank, and the pair of guide baffles are symmetrically arranged on both sides of the vertical edge of the guide plate. The guide plate and the pair of guide baffles cooperate to form an inverted U-shaped overflow channel.

[0014] In one or more embodiments of the present invention, an assembly frame is fixedly assembled on the storage tank. The assembly frame plays a role in assembling and limiting the driving rotating shaft. A driving rotating shaft is fixedly connected inside both the scrubbing roller and the impurity removing roller, and the driving rotating shaft is rotatably connected to the assembly frame. The driving rotating shaft plays a role in assembling and fixing and rotatingly driving the scrubbing roller and the impurity removing roller. One end of the driving rotating shaft located outside the assembly frame is fixedly connected with a transmission belt pulley, and a synchronous belt is sleeved between every two of the plurality of transmission belt pulleys. Through the cooperation of the transmission belt pulley and the synchronous belt, multiple groups of driving rotating shafts can be driven to rotate synchronously, so as to drive the scrubbing roller and the impurity removing roller to rotate. The other side of the driving rotating shaft is fixedly connected with a driving motor, and the output shaft of the driving motor is in transmission connection with the driving rotating shaft. The driving motor plays a role in providing power, and the driving rotating shaft is rotationally driven by controlling the operation of the driving motor.

[0015] In one or more embodiments of the present invention, a fixed partition is fixedly connected to the inner wall of the storage tank, and a filter impurity net is fixedly connected between the fixed partition and the flow guiding plate. A filtering and purifying cavity and a precipitation and purifying cavity are formed through the cooperation of the fixed partition and the filter impurity net. The storage tank, the fixed partition, the filter impurity net and the flow guiding plate cooperate to form a filtering and purifying cavity. An overflow sewage filtering space is provided through the filtering and purifying cavity. The fixed partition, the filter impurity net and the flow guiding plate cooperate to form a precipitation and purifying cavity, and the precipitation and purifying cavity is communicated with the biological purifying cavity through an inverted U-shaped overflow channel. The overflow sewage filtered by the filtering and purifying cavity is precipitated through the precipitation and purifying cavity.

[0016] In one or more embodiments of the present invention, a storage impurity box is slidably assembled on one side of the fixed partition, and the storage impurity box is arranged in the precipitation and purifying cavity. The impurities discharged by the impurity removing roller and the impurity discharging pipe are collected and stored through the storage impurity box. The inner bottom surface of the storage impurity box is inclined, and the horizontal height of the inner bottom surface of the storage impurity box close to one side of the fixed partition is lower than that of the other side. It is convenient to make the sewage deposited in the storage impurity box accumulate on one side of the storage impurity box under the action of gravity. A liquid discharging filter screen is fixedly connected to the bottom surface of the storage impurity box. The sewage accumulated at the bottom of the storage impurity box is filtered and discharged through the liquid discharging filter screen, so as to avoid the situation of sewage accumulation in the storage impurity box.

[0017] In one or more embodiments of the present invention, a pair of sewage suction pumps are fixedly assembled on the outside of the storage tank, and the liquid inlet of each of the pair of sewage suction pumps is communicated with the impurity discharging pipe. By controlling the operation of the sewage suction pumps, the impurity removing floating ball is used to extract and export the impurities suspended on the liquid surface of the sewage in the filtering and purifying cavity. A sewage discharging pipe is fixedly connected to the liquid outlet of each of the pair of sewage suction pumps, and the other end of the sewage discharging pipe is located in the storage impurity box. It is convenient to make the suspended impurities extracted during the operation of the sewage suction pumps be conveyed into the storage impurity box along the sewage discharging pipe.

[0018] In one or more embodiments of the present invention, the self-cleaning aeration filtration unit includes a shrinking air storage tank, and the shrinking air storage tank is fixedly connected to the side of the fixed partition plate facing away from the impurity storage tank. The shrinking air storage tank plays a role in assembling and guiding the sliding of the piston baffle. At the same time, the shrinking air storage tank can temporarily store air, providing a basis for the subsequent extrusion and transportation of air. A piston baffle is slidably assembled in the shrinking air storage tank. The piston baffle plays a role in supporting and limiting the fixed connecting plate. At the same time, the air in the shrinking air storage tank can be compressed and extruded out by the movement of the piston baffle. In addition, by the way that the piston baffle extends out of the shrinking air storage tank, the piston baffle can protect the filter mesh from dust, avoiding the situation of impurity blockage when the filter mesh is not in use. A number of limiting springs are fixedly connected to one end of the piston baffle located in the shrinking air storage tank. The limiting springs play a role in supporting and resetting the piston baffle through expansion and reset.

[0019] In one or more embodiments of the present invention, a fixed connecting plate is fixedly connected to the side of the piston baffle located outside the shrinking air storage tank. The fixed connecting plate plays a role in assembling and limiting the cleaning brush and the connecting rod. A cleaning brush is fixedly connected to the side of the fixed connecting plate close to the filter mesh. The filter mesh can be assisted in cleaning by the way that the cleaning brush rises and falls with the fixed connecting plate, ensuring the smoothness of the filter mesh. Floating rings are fixedly sleeved on the outer sides of multiple groups of impurity removal floating balls, and a connecting rod is hinged between the cleaning brush and the floating ring. The impurity removal floating balls are assembled and limited through the cooperation of the connecting rod and the floating ring.

[0020] In one or more embodiments of the present invention, a number of one-way intake valves are fixedly connected to the top of the shrinking air storage tank. Facilitating the entry of outside air into the shrinking air storage tank along the one-way intake valves. Pulse exhaust pipes are fixedly connected to both sides of the shrinking air storage tank. The pulse exhaust pipes play a role in connecting the air distribution pipe and the shrinking air storage tank, facilitating the transportation of the air in the shrinking air storage tank into the air distribution pipe along the pulse exhaust pipes. A number of air distribution pipes are fixedly connected to the end of the pulse exhaust pipe located in the biological purification chamber, and multiple groups of evenly distributed aerators are fixedly connected below a number of the air distribution pipes. Air can be transported into the biological purification chamber through the cooperation of the air distribution pipes and multiple groups of aerators, which can not only aerate the sewage in the biological purification chamber, but also ensure the biological activity of the biological purification filler by oxygenation, improving the biological treatment efficiency of the biological purification filler.

[0021] Compared with the prior art, by setting the diversion and impurity filtration mechanism, the present invention can automatically export the impurities filtered from the overflow sewage, avoiding the process that the overflow sewage cannot be processed subsequently due to impurity accumulation, and significantly improving the efficiency of filtering and processing the overflow sewage;

[0022] By setting up a self-floating overflow treatment mechanism, the suspended impurities in the overflow sewage can be assisted in being exported, improving the fluidity of the overflow sewage. At the same time, the storage tank can be subjected to floating aeration treatment, improving the effect of on-site treatment of the overflow sewage. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a front view cross-sectional view of the on-site treatment device for overflow sewage in an embodiment of the present invention;

[0025] Figure 2 It is Figure 1 a schematic structural diagram of the structure at A in

[0026] Figure 3 It is Figure 1 a schematic structural diagram of the structure at B in

[0027] Figure 4 It is a partial structure three-dimensional view of the on-site treatment device for overflow sewage in an embodiment of the present invention;

[0028] Figure 5 It is another angle three-dimensional view of the partial structure of the on-site treatment device for overflow sewage in an embodiment of the present invention;

[0029] Figure 6 It is a three-dimensional view of the on-site treatment device for overflow sewage in an embodiment of the present invention;

[0030] Figure 7 It is Figure 6 a schematic structural diagram of the structure at C in

[0031] Figure 8 It is another angle three-dimensional view of the on-site treatment device for overflow sewage in an embodiment of the present invention.

[0032] Main reference numeral description:

[0033] 1 - Storage tank, 101 - Deflector, 102 - Biological purification chamber, 103 - Biological purification filler, 104 - Deflection partition, 105 - Filtration purification chamber, 106 - Sedimentation purification chamber, 2 - Flow - guiding and impurity - filtering mechanism, 201 - Filter grille, 202 - Brushing roller, 203 - Impurity - removing roller, 204 - Assembly frame, 205 - Driving rotating shaft, 206 - Belt pulley, 207 - Synchronous belt, 208 - Driving motor, 3 - Self - floating overflow treatment mechanism, 301 - Impurity - removing floating ball, 302 - Impurity - discharging pipe, 303 - Fixed partition, 304 - Impurity - filtering net, 305 - Impurity storage tank, 306 - Liquid - discharging filter screen, 307 - Sewage suction pump, 308 - Sewage - discharging pipe, 309 - Shrinking air storage tank, 310 - Piston baffle, 311 - Limiting spring, 312 - Fixed connecting plate, 313 - Cleaning brush, 314 - Floating ring, 315 - Connecting rod, 316 - One - way air inlet valve, 317 - Pulse exhaust pipe, 318 - Air - distributing pipe, 319 - Aerator, 4 - Sewage - discharging mechanism, 401 - Sewage - discharging mesh belt, 402 - Sludge tank, 403 - Scraper, 404 - Guide roller. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0035] As Figures 1 to 8 shown, an in - situ treatment device for overflow sewage in an embodiment of the present invention includes: a storage tank 1, a flow - guiding and impurity - filtering mechanism 2, a self - floating overflow treatment mechanism 3, and a sewage - discharging mechanism 4.

[0036] As Figure 1 shown, a deflector 101 is fixedly assembled in the storage tank 1, and the lower surface of the deflector 101 cooperates with the storage tank 1 to form a biological purification chamber 102. This facilitates biological purification of the sediment - filtered sewage through the biological purification chamber 102.

[0037] Specifically, the deflector 101 is arranged in an L - shape. The L - shaped deflector 101 cooperates with the storage tank 1 to form an L - shaped biological purification chamber 102, so as to facilitate laying the biological purification filler 103 below the filtration purification chamber 105 and the sedimentation purification chamber 106. The heat generated by the biological purification filler 103 during the biological treatment process can assist in heat preservation or heating of the filtration purification chamber 105 and the sedimentation purification chamber 106. By raising the temperature, the fluidity of the overflow sewage can be improved, thereby ensuring the high efficiency of the filtration purification chamber 105 and the sedimentation purification chamber 106 in in - situ treatment of the overflow sewage.

[0038] As Figure 1 shown, a biological purification filler 103 is laid at the bottom of the biological purification chamber 102. The sewage is biologically purified by the biological purification filler 103.

[0039] It should be noted that the horizontal height on one side of the water inlet of the storage tank 1 is lower than that on the other side. By setting the water inlet of the storage tank 1 to be inclined, the smoothness of the overflow sewage entering the filtration and purification chamber 105 is ensured. At the same time, the overflow sewage can scour the filtration grille 201 during the flowing process, and can scour the impurities separated on the filtration grille 201, ensuring the smoothness of the conduction of the filtration grille 201.

[0040] As Figure 1 shown, a pair of guide baffles 104 are fixedly connected in the storage tank 1, and the pair of guide baffles 104 are symmetrically arranged on both sides of the vertical side of the guide plate 101. The guide plate 101 and the pair of guide baffles 104 cooperate to form an inverted U-shaped overflow channel.

[0041] As Figures 1 to 2 shown, the diversion and filtration mechanism 2 is fixedly assembled in the storage tank 1. The diversion and filtration mechanism 2 is used for guiding and self-cleaning filtration of the water inlet of the storage tank 1. Among them, the diversion and filtration mechanism 2 includes a filtration grille 201, and the filtration grille 201 is fixedly assembled at the water inlet of the storage tank 1. The impurities in the overflow sewage are filtered by the filtration grille 201.

[0042] As Figure 4 shown, a pair of scrubbing rollers 202 are rotatably assembled above the filtration grille 201. By rotating the pair of scrubbing rollers 202, not only can the impurities filtered out on the filtration grille 201 be exported, but also the overflow sewage to be filtered on the filtration grille 201 can be assisted to be exported, avoiding the situation that the scrubbing rollers 202 only filter the sewage at the low horizontal section, and improving the efficiency of the filtration grille 201 for filtering impurities in the overflow sewage.

[0043] As Figures 1 to 2 shown, a waste removing roller 203 is arranged on one side of the scrubbing roller 202. The waste removing roller 203 assists in exporting the impurities filtered out on the filtration grille 201, so as to facilitate the transportation of the impurities to the impurity storage box 305 under the diversion action of the waste removing roller 203.

[0044] As Figures 6 to 7 shown, an assembly frame 204 is fixedly assembled on the storage tank 1. The assembly frame 204 plays a role in assembling and limiting the driving rotating shaft 205.

[0045] As Figures 1 to 2As shown, a driving rotating shaft 205 is fixedly connected inside both the scrubbing roller 202 and the impurity removing roller 203. The driving rotating shaft 205 is rotatably connected to the assembly frame 204. The driving rotating shaft 205 plays a role in assembling and fixing the scrubbing roller 202 and the impurity removing roller 203 and driving them to rotate.

[0046] As Figures 6 to 7 shown, at one end of the driving rotating shaft 205 located outside the assembly frame 204, a transmission belt pulley 206 is fixedly connected. A synchronous belt 207 is sleeved between every two of the multiple transmission belt pulleys 206. Through the cooperation of the transmission belt pulley 206 and the synchronous belt 207, multiple groups of driving rotating shafts 205 can be driven to rotate synchronously, so as to drive the scrubbing roller 202 and the impurity removing roller 203 to rotate.

[0047] As Figures 6 to 7 shown, on the other side of the driving rotating shaft 205, a driving motor 208 is fixedly connected. The output shaft of the driving motor 208 is in transmission connection with the driving rotating shaft 205. The driving motor 208 plays a role in providing power, and the driving rotating shaft 205 is driven to rotate by controlling the operation of the driving motor 208.

[0048] As Figures 1 to 3 shown, the self-floating overflow treatment mechanism 3 is assembled below the filter grille 201. The self-floating overflow treatment mechanism 3 is used to adsorb and export the pollutants floating on the sewage liquid surface after being filtered by the filter grille 201. At the same time, the sewage can be subjected to aeration purification treatment.

[0049] As Figures 1 to 3 shown, the self-floating overflow treatment mechanism 3 includes multiple groups of impurity removing floating balls 301, and the multiple groups of impurity removing floating balls 301 are arranged below the filter grille 201. It is convenient to extract and divert the impurities suspended above the liquid surface by the way of floating the impurity removing floating balls 301 on the sewage liquid surface in the filtration and purification chamber 105, avoiding the poor fluidity of the sewage affected by the suspended matter.

[0050] As Figures 4 to 5 shown, a waste discharging pipe 302 is fixedly connected above the impurity removing floating ball 301. The waste discharging pipe 302 is used to extract and divert the suspended matter in the impurity removing floating ball 301.

[0051] As Figures 4 to 5 shown, a fixed partition plate 303 is fixedly connected to the inner wall of the storage tank 1, and a filter mesh 304 is fixedly connected between the fixed partition plate 303 and the diversion plate 101. The filtration and purification chamber 105 and the precipitation and purification chamber 106 are formed through the cooperation of the fixed partition plate 303 and the filter mesh 304.

[0052] As Figure 1 shown, the storage tank 1, the fixed partition plate 303, the filter mesh 304 and the diversion plate 101 cooperate to form the filtration and purification chamber 105. The filtration and purification chamber 105 provides a filtering space for the overflow sewage.

[0053] like Figure 1 As shown, the fixed partition 303, the filter net 304 and the guide plate 101 cooperate to form a sedimentation purification chamber 106, which is connected to the biological purification chamber 102 through an inverted U-shaped overflow channel. The sedimentation purification chamber 106 is used to precipitate the overflow sewage after filtering the purification chamber 105.

[0054] like Figure 1 As shown, a debris storage box 305 is slidably mounted on one side of the fixed partition 303. This box is located within the sedimentation and purification chamber 106. This box collects and stores impurities discharged from the impurity removal roller 203 and the impurity discharge pipe 302. The inner bottom of the box 305 is tilted, with the bottom level on the side closest to the fixed partition 303 lower than the other side. This allows the wastewater deposited in the box 305 to accumulate on one side under the action of gravity.

[0055] like Figure 1 As shown, a drainage filter 306 is fixedly connected to the bottom surface of the storage box 305. The drainage filter 306 filters and discharges the sewage accumulated at the bottom of the storage box 305, thereby avoiding the accumulation of sewage in the storage box 305.

[0056] like Figures 4 to 6 As shown, a pair of sewage suction pumps 307 are fixedly installed outside the regulating reservoir 1, and the liquid inlets of the sewage suction pumps 307 are both connected to the impurity discharge pipe 302. By controlling the operation of the sewage suction pumps 307, the impurity removal float 301 extracts and discharges impurities suspended on the sewage surface in the filter purification chamber 105.

[0057] like Figures 4 to 6 As shown, the liquid outlets of a pair of sewage suction pumps 307 are fixedly connected to a sewage pipe 308, and the other end of the sewage pipe 308 is located in the storage box 305. It is convenient for the suspended impurities extracted during the operation of the sewage suction pump 307 to be transported to the storage box 305 along the sewage pipe 308.

[0058] like Figures 1 to 3 As shown, a self-cleaning aeration and filtration unit is positioned on one side of the multiple groups of debris removal floats 301. This unit includes a collapsible air storage box 309, which is fixedly connected to the side of the fixed partition 303 facing away from the debris storage box 305. This box 309 serves as an assembly and sliding guide for the piston baffle 310. Furthermore, it temporarily stores air, providing a foundation for subsequent extrusion and delivery of air.

[0059] like Figures 1 to 3As shown, a piston baffle 310 is slidably assembled in the shrinkable gas storage tank 309. The piston baffle 310 plays a role in supporting and limiting the fixed connecting plate 312. At the same time, the movement of the piston baffle 310 can compress and extrude the air in the shrinkable gas storage tank 309 for derivation. In addition, by the way that the piston baffle 310 extends out of the shrinkable gas storage tank 309, the piston baffle 310 can protect the filter mesh 304 from dust, avoiding the situation of impurity blockage when the filter mesh 304 is not in use.

[0060] As Figures 1 to 3 shown, a plurality of limiting springs 311 are fixedly connected to one end of the piston baffle 310 located inside the shrinkable gas storage tank 309. The expansion and reset of the limiting springs 311 play a role in supporting and resetting the piston baffle 310.

[0061] As Figures 1 to 3 shown, a fixed connecting plate 312 is fixedly connected to one side of the piston baffle 310 located outside the shrinkable gas storage tank 309. The fixed connecting plate 312 plays a role in assembling and limiting the cleaning brush 313 and the connecting rod 315.

[0062] As Figures 1 to 3 shown, a cleaning brush 313 is fixedly connected to one side of the fixed connecting plate 312 close to the filter mesh 304. The filter mesh 304 can be assisted in cleaning by the way that the cleaning brush 313 rises and falls with the fixed connecting plate 312, ensuring the smoothness of the filter mesh 304.

[0063] As Figures 1 to 3 shown, floating rings 314 are fixedly sleeved on the outside of multiple impurity removal floating balls 301, and a connecting rod 315 is hinged between the cleaning brush 313 and the floating ring 314. The connecting rod 315 and the floating ring 314 cooperate to assemble and limit the impurity removal floating balls 301.

[0064] As Figures 1 to 3 shown, a plurality of one-way intake valves 316 are fixedly connected to the top of the shrinkable gas storage tank 309. It is convenient for the outside air to enter the shrinkable gas storage tank 309 along the one-way intake valves 316. Pulse exhaust pipes 317 are fixedly connected to both sides of the shrinkable gas storage tank 309. The pulse exhaust pipes 317 play a role in connecting the air distribution pipe 318 and the shrinkable gas storage tank 309, facilitating the transportation of the air in the shrinkable gas storage tank 309 to the air distribution pipe 318 along the pulse exhaust pipes 317.

[0065] As Figures 4 to 7As shown, one end of the pulse exhaust pipe 317 within the biological purification chamber 102 is fixedly connected to a plurality of air distribution pipes 318. Below each of the air distribution pipes 318, there are multiple sets of evenly distributed aerators 319. The air distribution pipes 318 and the multiple sets of aerators 319 cooperate to deliver air into the biological purification chamber 102. This not only aerates the wastewater within the biological purification chamber 102 but also ensures the biological activity of the biological purification filler 103 through oxygenation, thereby improving the biological treatment efficiency of the biological purification filler 103.

[0066] like Figure 1 As shown, the sewage discharge mechanism 4 is assembled below the multiple groups of debris removal floats 301 , and the sewage discharge mechanism 4 is used to clean and discharge the sludge at the bottom of the storage tank 1 .

[0067] like Figures 1 to 3 As shown, the sewage discharge mechanism 4 includes a sewage discharge mesh belt 401, which is arranged in the filter purification chamber 105 and penetrates the filter purification chamber 105. The movement of the sewage discharge mesh belt 401 can circulate and discharge the sludge, avoid the accumulation of sludge at the bottom of the filter purification chamber 105, and ensure the smooth treatment of overflow sewage.

[0068] like Figure 1 As shown, a sludge box 402 is fixedly mounted on one side of the storage tank 1, and the sludge box 402 is sleeved on one side of the sewage net belt 401 outside the filtration and purification chamber 105. The sludge is stored in the sludge box 402.

[0069] like Figures 1 to 3 As shown, multiple evenly distributed scrapers 403 are fixedly attached to the outside of the drainage mesh belt 401. These multiple scrapers 403 move with the movement of the drainage mesh belt 401 to scrape and clean the sludge accumulated at the bottom of the filtration and purification chamber 105. Multiple sets of guide rollers 404 are rotatably mounted within the filtration and purification chamber 105, guiding the drainage mesh belt 401 in a zigzag arrangement. Controlling the rotation of the guide rollers 404 allows the movement of the drainage mesh belt 401 to be controlled.

[0070] It is worth noting that the guide roller 404 can be connected to the driving shaft 205 through a sprocket and a chain, so that the guide roller 404 can rotate synchronously with the rotation of the driving shaft 205.

[0071] During specific use, the overflow sewage can flow along the water inlet of the storage tank 1 into the filtration and purification chamber 105. The large-volume impurities in the overflow sewage can be filtered by the filter grille 201. Since the filter grille 201 is inclined, when the overflow sewage enters the filtration and purification chamber 105, it can assist in flushing the filter grille 201. At the same time, the operation of the driving motor 208 can be controlled to drive the single driving rotating shaft 205 to rotate. Multiple driving rotating shafts 205 can rotate synchronously under the synchronous action of the transmission belt wheels 206 and the synchronous belt 207, so that the scrubbing roller 202 and the impurity removal roller 203 can scrub and remove impurities from the filter grille 201. The rotation of the scrubbing roller 202 can not only discharge the impurities filtered out on the upper surface of the filter grille 201, but also assist in guiding the overflow sewage conveyed on the surface of the filter grille 201. The impurities filtered out by the filter grille 201 can be conveyed into the impurity storage box 305 by the impurity removal roller 203 for storage.

[0072] The overflow sewage filtered by the filter grille 201 enters the filtration and purification chamber 105, and after being filtered by the impurity filter net 304, it is conveyed into the precipitation and purification chamber 106 for precipitation. The precipitated overflow sewage can be conveyed into the biological purification chamber 102 along the inverted U-shaped overflow channel for biological purification.

[0073] In addition, the sludge at the bottom of the filtration and purification chamber 105 can move synchronously with the movement of the sewage discharge mesh belt 401. By moving the sludge into the sludge box 402, the situation of sludge accumulation in the filtration and purification chamber 105 is avoided, and the flowability of the impurity filter net 304 for filtering the overflow sewage is improved.

[0074] When the overflow sewage is filtered by the impurity filtering net 304, multiple impurity removing floating balls 301 will float on the surface of the overflow sewage under the action of buoyancy. By controlling the operation of the sewage suction pump 307, the impurities suspended on the surface of the overflow sewage can be extracted. The extracted suspended impurities can be transported along the sewage discharge pipe 308 to the impurity storage tank 305 for collection. In addition, during the floating process of the multiple impurity removing floating balls 301 along with the liquid level change, under the action of the floating ring 314, the connecting rod 315 and the fixed connecting plate 312, the piston baffle 310 can be driven to compress the shrinkable air storage tank 309, so that the air in the shrinkable air storage tank 309 can be transported to the biological purification chamber 102 along the pulse exhaust pipe 317, the air distribution pipe 318 and the aerator 319. This can not only aerate the biological purification chamber 102, but also oxygenate the biological purification filler 103, thus ensuring the biological activity of the biological purification filler 103. When the biological purification filler 103 biologically treats the overflow sewage, heat can be generated. The heat generated by biological purification can assist in heat preservation and heating of the filtration purification chamber 105 and the precipitation purification chamber 106. By means of auxiliary heating, the fluidity of the overflow sewage is further improved, thereby improving the treatment efficiency of the overflow sewage. In addition, when the fixed connecting plate 312 floats synchronously with the liquid level of the overflow sewage in the filtration purification chamber 105, the impurity filtering net 304 can be assisted in scrubbing through the lifting of the cleaning brush 313, thus ensuring the filtering and guiding effect of the impurity filtering net 304.

[0075] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claim.

[0076] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An in-situ treatment device for overflow sewage, characterized in that, Including: A storage tank; A diversion and filtration mechanism, fixedly assembled in the storage tank, which is used for diverting and self-cleaning filtration of the influent water of the storage tank; Among them, the diversion and filtration mechanism includes a filter grille, which is fixedly assembled at the water inlet of the storage tank. A pair of brushing rollers are rotatably assembled above the filter grille, and a debris removal roller is arranged on one side of the brushing rollers; A self-floating overflow treatment mechanism, assembled below the filter grille, which is used for adsorbing and discharging the pollutants floating on the sewage liquid surface after filtration by the filter grille. At the same time, it can aerate and purify the sewage; Among them, the self-floating overflow treatment mechanism includes multiple groups of debris removal floating balls, which are arranged below the filter grille. A waste discharge pipe is fixedly connected above the debris removal floating balls, and a self-cleaning aeration filtration unit is arranged on one side of the multiple groups of debris removal floating balls; A sewage discharge mechanism, assembled below the multiple groups of debris removal floating balls, which is used for cleaning and discharging the sludge at the bottom of the storage tank.

2. The on-site treatment device for overflow sewage according to claim 1, characterized in that A diversion plate is fixedly assembled in the storage tank. The diversion plate is arranged in an L shape. The lower surface of the diversion plate and the storage tank cooperate to form a biological purification chamber, and biological purification fillers are laid at the bottom of the biological purification chamber.

3. The on-site treatment device for overflow sewage according to claim 2, wherein, The horizontal height of one side of the water inlet of the storage tank is lower than that of the other side. A pair of diversion partition plates are fixedly connected in the storage tank. The pair of diversion partition plates are symmetrically arranged on both sides of the vertical side of the diversion plate. The diversion plate and the pair of diversion partition plates cooperate to form an inverted U-shaped overflow channel.

4. The on-site treatment device for overflow sewage according to claim 3, characterized in that An assembly frame is fixedly assembled on the storage tank. Driving rotating shafts are fixedly connected in both the brushing rollers and the debris removal rollers. The driving rotating shafts are rotatably connected to the assembly frame. Transmission belt wheels are fixedly connected to the ends of the driving rotating shafts outside the assembly frame. Synchronous belts are sleeved between every two of the multiple transmission belt wheels. The other side of the driving rotating shaft is fixedly connected with a driving motor, and the output shaft of the driving motor is in transmission connection with a single driving rotating shaft.

5. The on-site treatment device for overflow sewage according to claim 4, wherein, A fixed partition plate is fixedly connected to the inner wall of the storage tank. A filter net is fixedly connected between the fixed partition plate and the diversion plate. The storage tank, the fixed partition plate, the filter net and the diversion plate cooperate to form a filtration and purification chamber. The fixed partition plate, the filter net and the diversion plate cooperate to form a precipitation and purification chamber. The precipitation and purification chamber is communicated with the biological purification chamber through the inverted U-shaped overflow channel.

6. The on-site treatment device for overflow sewage according to claim 5, wherein, A storage box for impurities is slidably assembled on one side of the fixed partition plate. The storage box for impurities is arranged in the precipitation and purification chamber. The inner bottom surface of the storage box for impurities is inclined, and the horizontal height of the inner bottom surface of the storage box for impurities close to the fixed partition plate is lower than that of the other side. A liquid discharge filter net is fixedly connected to the bottom surface of the storage box for impurities.

7. The on-site treatment device for overflow sewage according to claim 6, characterized in that, A pair of sewage suction pumps are fixedly assembled on the outside of the storage tank. The liquid inlet ports of the pair of sewage suction pumps are both communicated with the waste discharge pipe. Sewage discharge pipes are fixedly connected to the liquid outlet ports of the pair of sewage suction pumps. The other ends of the sewage discharge pipes are located in the storage box for impurities.

8. The on-site treatment device for overflow sewage according to claim 7, wherein, The self-cleaning aeration filtration unit includes a shrinkage gas storage tank, which is fixedly connected to the side of the fixed partition away from the impurity storage tank. A piston baffle is slidably assembled in the shrinkage gas storage tank, and a number of limiting springs are fixedly connected to one end of the piston baffle located in the shrinkage gas storage tank.

9. The on-site treatment device for overflow sewage according to claim 8, characterized in that One side of the piston baffle located outside the shrinkage gas storage tank is fixedly connected with a fixed connecting plate. A cleaning brush is fixedly connected to the side of the fixed connecting plate close to the filter impurity net. Floating rings are fixedly sleeved on the outer sides of multiple groups of impurity removal floating balls, and a connecting rod is hinged between the cleaning brush and the floating ring.

10. The on-site treatment device for overflow sewage according to claim 9, characterized in that, A number of one-way intake valves are fixedly connected to the top of the shrinkage gas storage tank. Pulse exhaust pipes are fixedly connected to both sides of the shrinkage gas storage tank. One end of the pulse exhaust pipe located in the biological purification chamber is fixedly connected with a number of air distribution pipes, and multiple groups of evenly distributed aerators are fixedly communicated below the number of air distribution pipes.

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