An automatic treatment device for reducing pollution and carbon emissions from overflow sewage in urban pipe networks

Abstract

The present invention discloses an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in an urban pipe network, which belongs to the technical field of sewage treatment, and includes a sedimentation tank, a treatment tank, a water storage tank and a filter material tank, wherein the sedimentation tank is located inside a riverbed. The present invention provides an overflow sewage treatment structure composed of a sedimentation tank, a treatment tank, a water storage tank and a filter material tank inside a river channel, and builds an overflow sewage treatment structure based on a river channel and a river bank without occupying urban land resources. The structure has a certain height difference between the multiple structures, and the appearance of the treatment structure after completion is equivalent to arranging multiple waterfalls in a river channel, and a water-emerging vegetation is arranged on the last filter material tank, which can beautify the urban river landscape. In addition, the structure can realize the storage and treatment of overflow sewage, reduce the pollution load of overflow sewage or direct-discharge sewage entering the river, effectively reduce the cost of large-scale pipe network transformation and installation of treatment equipment, and solve the problem of large land resource occupation by existing equipment and processes.

Description

Technical Field

[0001] The invention relates to an automatic sewage treatment device, in particular to an automatic sewage treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network, and belongs to the technical field of sewage treatment. Background Art

[0002] Urban surface water is not only an important part of urban life, culture and environment, but also the main source of water for cities. With the rapid development of society, the urbanization process has accelerated, resulting in a gradual reduction in the green area of ​​urban areas and a relative concentration of surface water. Another existing drainage and sewage system for urbanization relies on the urban pipe network system. However, due to the limitations of existing pipe network misconnections, combined system overflows, and pipeline water delivery capacity, a large amount of sewage will enter urban rivers, resulting in the gradual deterioration of the urban surface water environment and even black and smelly. Common measures to solve overflow sewage include sewage treatment equipment, artificial wetlands, etc.

[0003] In the prior art, for example, an invention patent application with publication number CN117247177A discloses a modular artificial wetland system for treating overflow sewage from a sewage outlet. In view of the fact that the overflow pollutes a large amount of domestic garbage and the particulate pollutants in the sewage are large, a filter screen interception area and an adsorption filter area are set to limit the drifting of garbage and clean it up in time, thereby reducing the entry of particulate pollutants into the surface water. At the same time, the sewage is further treated in the artificial wetland purification area to ensure the cleanliness and beauty of the water surface.

[0004] In the prior art, for example, a utility model with announcement number CN220149425U discloses an on-site overflow sewage treatment device, which solves the problem that existing microbial treatment technology or ecological purification technology is difficult to cope with the fluctuation of overflow pollution load, resulting in difficulty in achieving efficient treatment.

[0005] Similar to the above application, there are still some shortcomings:

[0006] Affected by the different amounts of overflow sewage and overflow periods, general treatment devices can quickly reduce the load of sewage entering the river, but the equipment operation and maintenance costs are high, and the location on the river bank is occupied, which is not aesthetically pleasing; artificial wetlands can better treat overflow sewage, but are limited by treatment capacity, require a large area, and require the occupation of land on the shore, and therefore are subject to restrictions.

[0007] Therefore, an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in urban pipe networks is designed to optimize the above problems. Summary of the invention

[0008] The main purpose of the present invention is to provide an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in urban pipe networks. An overflow sewage treatment structure consisting of a sedimentation tank, a treatment tank, a water storage tank and a filter material tank is arranged inside the river channel. Under the condition of not occupying urban land resources, an overflow sewage treatment structure is constructed based on the river channel or part of the river bank, and there is a certain height difference between the multiple structures, which is equivalent to setting up a multi-stage waterfall device in the river channel, and water-emerging vegetation is arranged, which can beautify the urban river landscape, and can also realize the storage and treatment of overflow sewage, reduce overflow sewage Or the pollution load of directly discharged sewage into the river can effectively reduce the cost of large-scale pipe network transformation and treatment equipment, solve the problem of large land occupation of existing equipment and process, and at the same time, realize the purpose of multiple outlets sharing treatment structure within a short distance. A first upper overflow port and a first lower overflow port are arranged between the sedimentation tank and the treatment tank, a second upper overflow port and a second lower overflow port are arranged between the treatment tank and the water storage tank, and a flow blocking mechanism composed of an L-shaped plate, a floating plate, a baffle and a blocking plate is arranged on the side of the first lower overflow port and the second lower overflow port. When the water in the pool is higher than the lower overflow port and continues to rise, When the water level drops, the blocking mechanism will automatically open to adapt to the treatment of different overflow sewage volumes. A garbage filtering mechanism composed of a V-shaped support rod, a roller, a vertical plate, a filter net, a net bag, and filter materials is arranged inside the sedimentation tank. Not only can the mud and impurities be filtered, but also when the sewage flows through, the impact force of the water flow can automatically control the garbage filtering mechanism to transport the impurities filtered on the top to the inside of the garbage sludge collection mechanism. No electric drive control is required, and energy-saving is used. Convenient, through the drug dispensing components composed of a box body, a drug mixing bin, a drug storage bin, a drug discharge port, a turntable, a quantitative tank, a partition, a stirring motor, a stirring shaft, a water adding pump, and a drug discharge pump, the flocculation precipitation mother liquor can be accurately and quickly configured during use, and it is more convenient to use. In addition, a stirring component composed of a rotating rod, a stirring rod, and an impeller is arranged at the bottom of the second upper overflow port and the second lower overflow port. The impact force generated by the overflow of water can drive the rotation of the stirring component to accelerate the mixing of the flocculation precipitation mother liquor. There is no electric drive, which greatly saves the later operation and maintenance costs.

[0009] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0010] An automatic treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network comprises a sedimentation tank, a treatment tank, a water storage tank and a filter material tank. The sedimentation tank is located inside a riverbed, and the width of the sedimentation tank is equal to that of the riverbed and connected to the opposite bank. A sewage outlet is provided at the end of the sedimentation tank, and a garbage filtering mechanism is provided inside the sedimentation tank below the sewage outlet. A treatment tank is provided on the side of the sedimentation tank and inside the riverbed, and the top of the treatment tank is lower than the horizontal plane where the top of the sedimentation tank is located. A garbage sludge collecting mechanism for collecting sludge impurities inside the sedimentation tank and the treatment tank is provided at the end of the sedimentation tank and on the river bank. A dosing mechanism is provided on the inner top of the treatment tank, and a first upper overflow is provided at the top between the sedimentation tank and the treatment tank and below the garbage filtering mechanism. A first lower overflow port is provided at the bottom between the sedimentation tank and the treatment tank, a water storage tank is provided on the side of the treatment tank away from the sedimentation tank, a second upper overflow port is provided at the top between the treatment tank and the water storage tank, a second lower overflow port is provided at the bottom between the treatment tank and the water storage tank, the second upper overflow port and the second lower overflow port are respectively lower than the horizontal planes of the first upper overflow port and the first lower overflow port, a flow blocking mechanism is provided below the first lower overflow port in the sedimentation tank and below the second lower overflow port in the treatment tank, a filter material pool communicated with the inside of the water storage tank is provided on the side of the water storage tank away from the treatment tank, emergent plants are planted on the top of the filter material pool, filtering fillers are provided inside the filter material pool, and a one-way conducting mechanism is provided between the water storage tank and the filter material pool.

[0011] Preferably: the garbage filtering mechanism includes a V-shaped support rod, a roller, a filter conveyor belt and a vertical plate, the V-shaped support rod is evenly fixed between the two sides of the sedimentation tank, the two ends and the middle position of the V-shaped support rod are rotatably installed with rollers, a filter conveyor belt is arranged between the rollers on the multiple groups of V-shaped support rods, and vertical plates are vertically installed on the surface of the filter conveyor belt.

[0012] Preferably: the filter conveyor belt includes a filter screen, a net bag and filter material, the filter screen is annular and is located on the outside of the roller, the vertical plate is fixed on the surface of the filter screen, the inner side of the filter screen is provided with a net bag that fits the surface of the roller, and the interior of the net bag is filled with filter material.

[0013] Preferably: the garbage sludge collection mechanism includes a sludge collection well, an impurity collection trough and an impurity inlet, the sludge collection well is vertically arranged on the shore, and the top of the sludge collection well is flush with the river bank, the depth of the bottom of the sludge collection well is at least 50 cm lower than the sedimentation tank, the bottom of the sludge collection well is respectively connected to the bottom of the sedimentation tank and the treatment tank, a mud pump for extracting mud is installed at the bottom of the sludge collection well, an impurity collection trough is arranged on the top of the side of the sludge collection well, an impurity inlet connected to the inside of the sedimentation tank is opened on the side of the impurity collection trough, the filter screen extends to the inside of the impurity inlet, a mesh frame is arranged at the inner bottom of the impurity collection trough, and brackets are arranged at both ends of the top of the impurity collection trough, a wire roller is rotatably installed on the bracket, and a suspension rope is wound around both ends of the wire roller, and the bottom end of the suspension rope is fixedly connected to both ends of the mesh frame.

[0014] Preferably: the dosing mechanism includes a sensor, a dosing tube and a dispensing component, the sensor is installed inside the first upper overflow port and the first lower overflow port, dosing tubes are evenly arranged between the two ends of the top of the treatment tank, and a dispensing component for transporting flocculation and precipitation mother liquor to the inside of the dosing tube is arranged outside the treatment tank.

[0015] Preferably: the drug dispensing component includes a box body, a drug mixing bin, a drug storage bin, a stirring motor, a stirring shaft, a water adding pump, a drug draining pump and a flocculant adding component. A drug mixing bin is provided at the inner bottom of the box body, a drug storage bin is provided at the inner top of the box body, a flocculant adding component is provided at the bottom of the drug storage bin, a stirring motor is installed at the inner bottom of the drug mixing bin, a stirring shaft is installed at the output end of the stirring motor, a water adding pump is installed at the top outside the box body, the input end of the water adding pump is connected to the interior of the water storage tank, the output end of the water adding pump is connected to the interior of the drug mixing bin, a drug draining pump is installed at the bottom outside the box body, the input end of the drug draining pump is connected to the interior of the drug mixing bin, and the output end of the drug draining pump is connected to the drug adding pipe.

[0016] Preferably: the flocculant addition component includes a drug discharge port, a turntable, a quantitative groove and a partition, the drug discharge port is opened on one side of the bottom of the drug storage bin, a partition is fixed horizontally below the drug discharge port, a turntable is rotatably installed between the top of the partition and the bottom of the drug storage bin, the top end of the stirring shaft is fixedly connected to the middle position of the bottom of the turntable, and a quantitative groove cooperating with the drug discharge port is opened on the turntable.

[0017] Preferably: a rotating rod is evenly installed on one side of the treatment tank close to the sedimentation tank, and the rotating rod is located below the first upper overflow port and the first lower overflow port. An impeller is installed on one end of the rotating rod close to the sedimentation tank, and stirring rods are evenly arranged on the outside of the rotating rod.

[0018] Preferably: the flow blocking mechanism includes an L-shaped plate, a floating plate, a block and a plugging plate, the L-shaped plates are symmetrically arranged on both sides of the first lower overflow port and the second lower overflow port, the bottom ends of the L-shaped plates are fixed with blocks, a plugging plate is slidably provided between the two groups of L-shaped plates, a floating plate is provided on the top of the plugging plate, and the plugging plate is in contact with the inner walls of the sedimentation tank and the treatment tank.

[0019] Preferably: the one-way conduction mechanism includes a porous water distribution pipe, a stainless steel protective net and a one-way valve. The porous water distribution pipe is horizontally fixed between the two sides of the filter material pool. The end of the porous water distribution pipe is connected to the interior of the water storage tank. The ends of the porous water distribution pipe are all installed with a one-way valve. A stainless steel protective net is provided on the outside of the porous water distribution pipe inside the filter material pool.

[0020] The beneficial effects of the present invention are:

[0021] The present invention provides an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in urban pipe networks. The overflow sewage treatment structure composed of a sedimentation tank, a treatment tank, a water storage tank and a filter material tank is arranged inside the river channel. Under the condition that the urban land resources are not occupied, the overflow sewage treatment structure is constructed relying on the river bank, and there is a certain height difference between the multiple structures, which is equivalent to arranging a multi-stage waterfall device in the river channel, and water-emerging vegetation is arranged, which can beautify the urban river landscape. In addition, the overflow sewage can be stored and treated, and the pollution load of overflow sewage or direct-discharged sewage entering the river can be reduced. The cost of large-scale pipe network transformation and treatment equipment can be effectively reduced, and the problem of large land occupation of existing equipment and processes can be solved. At the same time, the purpose of multiple outlets sharing the treatment structure within a short distance can be achieved;

[0022] A first upper overflow port and a first lower overflow port are provided between the sedimentation tank and the treatment tank, a second upper overflow port and a second lower overflow port are provided between the treatment tank and the water storage tank, and a flow blocking mechanism consisting of an L-shaped plate, a floating plate, a block, and a blocking plate is provided on the side of the first lower overflow port and the second lower overflow port. When the water in the tank body is higher than the lower overflow port and continues to rise, the flow blocking mechanism blocks the lower overflow port, and the water flows out from the upper overflow port. When the water level drops, the flow blocking mechanism will automatically open to adapt to the full treatment of different overflow sewage volumes;

[0023] By arranging a garbage filtering mechanism composed of a V-shaped support rod, a rotating roller, a vertical plate, a filter net, a net bag, and a filter material inside the sedimentation tank, not only can the mud and impurities be filtered, but also when the sewage flows through, the impact force of the water flow can automatically control the garbage filtering mechanism to transport the impurities filtered on the top toward the inside of the garbage sludge collection mechanism, without the need for electric drive control, and energy-saving and convenient to use;

[0024] The drug dispensing assembly consisting of a box body, a drug mixing bin, a drug storage bin, a drug discharge port, a turntable, a metering tank, a partition, a stirring motor, a stirring shaft, a water adding pump, and a drug discharge pump can accurately and quickly configure the flocculation precipitation mother liquor during use, making it more convenient to use. In addition, a stirring assembly consisting of a rotating rod, a stirring rod, and an impeller is arranged at the bottom of the second upper overflow port and the second lower overflow port. The impact force generated by the overflow of water can be used to drive the rotation of the stirring assembly, thereby accelerating the mixing of the flocculation precipitation mother liquor. It does not require electric drive, which greatly saves the subsequent operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network according to the present invention;

[0026] Figure 2 A diagram of a sedimentation tank of a preferred embodiment of an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network according to the present invention;

[0027] Figure 3 A diagram of a treatment tank of a preferred embodiment of an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network according to the present invention;

[0028] Figure 4 A filter pool diagram of a preferred embodiment of an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network according to the present invention;

[0029] Figure 5 It is a cross-sectional view of a filter assembly of a preferred embodiment of an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network according to the present invention;

[0030] Figure 6 It is a diagram of a flow blocking component of a preferred embodiment of an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network according to the present invention;

[0031] Figure 7 It is a diagram of a garbage sludge collection component of a preferred embodiment of an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network according to the present invention;

[0032] Figure 8 This is a diagram of the dispensing components of a preferred embodiment of the automatic treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network of the present invention.

[0033] In the figure: 1, sedimentation tank; 2, treatment tank; 3, water storage tank; 4, filter material tank; 5, sewage outlet; 6, garbage filtering mechanism; 7, garbage sludge collection mechanism; 8, first upper overflow port; 9, first lower overflow port; 10, second upper overflow port; 11, second lower overflow port; 12, flow blocking mechanism; 13, emergent plants; 14, filter filler; 15, sensor; 16, dosing pipe; 17, dispensing component; 18, porous water distribution pipe; 19, stainless steel protective net; 20, one-way valve; 21, V-shaped support rod; 22, roller; 23, filter conveyor belt; 24, vertical plate; 25. Filter screen; 26. Net bag; 27. Filter material; 28. Rotating rod; 29. ​​Stirring rod; 30. Impeller; 31. Sludge collection well; 32. Impurity collection tank; 33. Impurity inlet; 34. Net frame; 35. Lifting rope; 36. Bracket; 37. Wire roller; 38. Box body; 39. Drug mixing bin; 40. Drug storage bin; 41. Drug discharge port; 42. Turntable; 43. Dosing tank; 44. Partition; 45. Stirring motor; 46. Stirring shaft; 47. Adding water pump; 48. Drug discharge water pump; 49. L-shaped plate; 50. Floating plate; 51. Block; 52. Blocking plate. DETAILED DESCRIPTION

[0034] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0035] like Figure 1-Figure 8As shown, this embodiment provides an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network, comprising a sedimentation tank 1, a treatment tank 2, a water storage tank 3 and a filter material tank 4. The sedimentation tank 1 is located inside the riverbed, and the width of the sedimentation tank 1 is equal to that of the riverbed and connected to the opposite bank. The sedimentation tank 1 is constructed by relying on a cement pool or a pre-buried cement box of a riverbed or riverbank component. A sewage outlet 5 is provided at the end of the sedimentation tank 1. The highest point of the sedimentation tank 1 is 10-20 cm higher than the sewage outlet 5, and the highest point does not exceed half of the river depth to ensure that the drainage of the river channel is not affected. The interior of the sedimentation tank 1 is located at the drainage outlet. A garbage filtering mechanism 6 is provided below the sewage outlet 5, a treatment tank 2 is provided on the side of the sedimentation tank 1 and inside the riverbed, the top of the treatment tank 2 is lower than the horizontal plane of the top of the sedimentation tank 1, and the height difference between the top of the sedimentation tank 1 and the treatment tank 2 is 10-20cm, the treatment tank 2 is the same width as the sedimentation tank 1, and a garbage sludge collection mechanism 7 for collecting sludge impurities inside the sedimentation tank 1 and the treatment tank 2 is provided at the end of the sedimentation tank 1 and on the river bank, a dosing mechanism is provided on the inner top of the treatment tank 2, and dosing can be carried out in the form of pressurized drip irrigation or spraying, and the top between the sedimentation tank 1 and the treatment tank 2 A first upper overflow port 8 is provided below the garbage filtering mechanism 6, a first lower overflow port 9 is provided at the bottom between the sedimentation tank 1 and the treatment tank 2, the number of the first lower overflow ports 9 is less than the number of the first upper overflow ports 8, a water storage tank 3 is provided on the side of the treatment tank 2 away from the sedimentation tank 1, a second upper overflow port 10 is provided at the top between the treatment tank 2 and the water storage tank 3, a second lower overflow port 11 is provided at the bottom between the treatment tank 2 and the water storage tank 3, the second upper overflow port 10 and the second lower overflow port 11 are respectively lower than the horizontal planes of the first upper overflow port 8 and the first lower overflow port 9, and the sedimentation tank 1 and the lower part of the first overflow port 9 in the treatment tank 2 and the lower part of the second overflow port 11 in the treatment tank 2 are both provided with a flow blocking mechanism 12. A filter material pool 4 communicated with the inside of the water storage tank 3 is provided on the side of the water storage tank 3 away from the treatment tank 2. The filter material pool 4 and the top of the water storage tank 3 are located at the same horizontal plane, and the height of the filter material pool 4 is consistent with the normal water level of the river. The top of the filter material pool 4 is planted with emergent plants 13. The planting area of ​​the emergent plants 13 can be selected from canna, iris, lily, umbrella bamboo, etc. A filtering filler 14 is provided inside the filter material pool 4, and a one-way conduction mechanism is provided between the water storage tank 3 and the filter material pool 4.

[0036] The general working principle is as follows: the overflowing sewage enters the sedimentation tank 1 from the sewage outlet 5, and the sewage directly falls on the top of the garbage filter mechanism 6. The garbage in the sewage is trapped on the garbage filter mechanism 6, and the sewage falls into the sedimentation tank 1 for sedimentation. The supernatant after sedimentation flows into the treatment tank 2 through the first lower overflow port 9. If the sewage flow rate is large, the liquid level inside the sedimentation tank 1 is higher than the first lower overflow port 9. At this time, the flow blocking mechanism 12 will block the first lower overflow port 9, and the supernatant after sedimentation is discharged from the first upper overflow port 8 into the treatment tank 2. The dosing mechanism is then used to dose the flocculation and precipitation mother liquor to accelerate the flocculation and precipitation of the solution. If there is less solution in the treatment tank 2, the supernatant flows from the second lower overflow port 11 into the water storage tank 3 for storage. If there is more solution in the treatment tank 2, the flow blocking mechanism 12 will block the second lower overflow port 11, and the supernatant is discharged from the second upper overflow port 10. Then the water in the water storage tank 3 enters the filter material tank 4, and artificial wetland biological treatment is carried out. The device can realize sewage treatment under physical, chemical and biological systems to ensure the sewage treatment effect.

[0037] In this embodiment, the garbage filtering mechanism 6 includes a V-shaped support rod 21, a roller 22, a filter conveyor belt 23 and a vertical plate 24. The V-shaped support rod 21 is evenly fixed between the two sides of the sedimentation tank 1. Rollers 22 are rotatably installed at both ends and the middle position of the V-shaped support rod 21. Filter conveyor belts 23 are arranged between the rollers 22 on multiple groups of V-shaped support rods 21, and vertical plates 24 are vertically installed on the surface of the filter conveyor belt 23.

[0038] Local working principle: After entering the sedimentation tank 1, the sewage will impact on the vertical plate 24. Due to the existence of the roller 22, the filter conveyor belt 23 is movably connected. Under the impact of the water flow, the filter conveyor belt 23 will be driven to rotate, changing the landing point of the sewage, and transporting the impurities intercepted by the filter conveyor belt 23 to the interior of the garbage sludge collection mechanism 7.

[0039] In this embodiment, the filter conveyor belt 23 includes a filter mesh 25, a net bag 26 and a filter material 27. The filter mesh 25 is ring-shaped and is located on the outside of the roller 22. The vertical plate 24 is fixed on the surface of the filter mesh 25. The inner side of the filter mesh 25 is provided with a net bag 26 that is in contact with the surface of the roller 22. The interior of the net bag 26 is filled with filter material 27.

[0040] Partial working principle: impurities in sewage are first filtered through the filter net 25, and then filtered again through the filter material 27 in the net bag 26. The filter material is preferably volcanic rock, quartz sand, phosphate iron ore, etc., and the particle size is controlled at 1-3cm.

[0041] In this embodiment, the garbage sludge collection mechanism 7 includes a sludge collection well 31, an impurity collection trough 32 and an impurity inlet 33. The sludge collection well 31 is vertically arranged on the bank, and the top of the sludge collection well 31 is flush with the river bank. The depth of the bottom of the sludge collection well 31 is at least 50 cm lower than the sedimentation tank 1. The bottom of the sludge collection well 31 is respectively connected to the bottom of the sedimentation tank 1 and the treatment tank 2. A sludge pump for extracting sludge is installed at the bottom of the sludge collection well 31. An impurity collection trough 32 is provided at the top of the side of the sludge collection well 31. An impurity inlet 33 connected to the inside of the sedimentation tank 1 is opened on the side of the impurity collection trough 32. The filter screen 25 extends to the inside of the impurity inlet 33. A mesh frame 34 is provided at the inner bottom of the impurity collection trough 32. Brackets 36 are provided at both ends of the top of the impurity collection trough 32. A wire roller 37 is rotatably installed on the bracket 36. A suspension rope 35 is wound around both ends of the wire roller 37. The bottom end of the suspension rope 35 is fixedly connected to both ends of the mesh frame 34.

[0042] Local working principle: The garbage intercepted on the filter conveyor belt 23 will be transported toward the inside of the impurity inlet 33 and fall, and the garbage will fall into the mesh frame 34 at the bottom of the impurity collection tank 32. The mesh frame 34 can be lifted up by rotating the alignment roller 37 and winding the lifting rope 35 regularly to process the garbage. When processing the precipitated sludge, a mud pump is used to extract the sludge inside the sedimentation tank 1 and the treatment tank 2.

[0043] In this embodiment, the dosing mechanism includes a sensor 15, a dosing pipe 16 and a dispensing component 17. The sensor 15 is installed inside the first upper overflow port 8 and the first lower overflow port 9. The dosing pipes 16 are evenly arranged between the two ends of the top of the treatment tank 2. The outside of the treatment tank 2 is provided with a dispensing component 17 for transporting the flocculation precipitation mother liquid inside the dosing pipe 16.

[0044] Local working principle: When the sewage after preliminary sedimentation enters the treatment tank 2, it flows through the first upper overflow port 8 and the first lower overflow port 9. The sensor 15 senses the signal of water inflow and starts the dosing component 17 to prepare the flocculation precipitation mother liquor, and discharges it from the inside of the dosing pipe 16 into the treatment tank 2, and the dosing is carried out in the form of spraying.

[0045] In this embodiment, the dispensing component 17 includes a box body 38, a medicine mixing bin 39, a medicine storage bin 40, a stirring motor 45, a stirring shaft 46, a water adding pump 47, a medicine draining pump 48 and a flocculant adding component. A medicine mixing bin 39 is provided at the inner bottom of the box body 38, a medicine storage bin 40 is provided at the inner top of the box body 38, and a flocculant adding component is provided at the bottom of the medicine storage bin 40. A stirring motor 45 is installed at the inner bottom of the medicine mixing bin 39, and a stirring shaft 46 is installed at the output end of the stirring motor 45. A water adding pump 47 is installed at the top of the outer side of the box body 38, the input end of the water adding pump 47 is connected to the interior of the water storage tank 3, and the output end of the water adding pump 47 is connected to the interior of the medicine mixing bin 39. A medicine draining pump 48 is installed at the bottom of the outer side of the box body 38, the input end of the medicine draining pump 48 is connected to the interior of the medicine mixing bin 39, and the output end of the medicine draining pump 48 is connected to the dosing pipe 16.

[0046] Local working principle: Flocculants can be selected from polyacrylamide, polymer aluminum chloride, etc. The flocculants are placed in the medicine storage bin 40 in advance. When it is necessary to prepare the medicine, the water pump 47 is added to quantitatively extract the liquid in the water storage tank 3 and inject it into the medicine mixing bin 39. Then, the stirring motor 45 is started to drive the solution to stir, and the flocculant adding component puts the flocculant into the medicine mixing bin 39 to complete the configuration of the flocculation and precipitation mother liquor. Then, the medicine discharge water pump 48 is started to inject the flocculation and precipitation mother liquor into the inside of the dosing pipe 16 for discharge.

[0047] In this embodiment, the flocculant addition component includes a drug discharge port 41, a turntable 42, a quantitative groove 43 and a partition 44. The drug discharge port 41 is opened on one side of the bottom of the drug storage bin 40, and a partition 44 is fixed horizontally below the drug discharge port 41. A turntable 42 is rotatably installed between the top of the partition 44 and the bottom of the drug storage bin 40. The top end of the stirring shaft 46 is fixedly connected to the middle position of the bottom of the turntable 42, and a quantitative groove 43 cooperating with the drug discharge port 41 is opened on the turntable 42.

[0048] Partial working principle: During the rotation of the stirring shaft 46, the turntable 42 will be driven to rotate. After the quantitative groove 43 on the turntable 42 is aligned with the drug discharge port 41, the flocculant can be automatically and quantitatively taken out, and as the stirring shaft 46 rotates, the flocculant is put into the solution for configuration. In addition, the intermittent feeding method will not cause the flocculant to agglomerate, thereby ensuring the mixing effect and rate.

[0049] In this embodiment, a rotating rod 28 is evenly installed on one side of the treatment tank 2 close to the sedimentation tank 1, and the rotating rod 28 is located below the first upper overflow port 8 and the first lower overflow port 9. An impeller 30 is installed on one end of the rotating rod 28 close to the sedimentation tank 1, and stirring rods 29 are evenly arranged on the outside of the rotating rod 28.

[0050] Partial working principle: When the water source inside the treatment tank 2 flows into the water storage tank 3, the flocculation sedimentation mother liquor is automatically released, and the continuous inflow of water will impact the surface of the impeller 30, driving the rotating rod 28 and the stirring rod 29 to rotate, so that the flocculation sedimentation mother liquor and the sewage are evenly mixed. No electric drive is required, and it is more energy-saving and convenient to use.

[0051] In this embodiment, the flow blocking mechanism 12 includes an L-shaped plate 49, a floating plate 50, a block 51 and a blocking plate 52. The L-shaped plate 49 is symmetrically arranged on both sides of the first lower overflow port 9 and the second lower overflow port 11. The bottom end of the L-shaped plate 49 is fixed with a block 51. A blocking plate 52 is slidably provided between the two groups of L-shaped plates 49. A floating plate 50 is provided on the top of the blocking plate 52. The blocking plate 52 is in contact with the inner walls of the sedimentation tank 1 and the treatment tank 2.

[0052] Local working principle: when there is less solution inside the sedimentation tank 1 and the treatment tank 2, it is lower than the plane where the first lower overflow port 9 and the second lower overflow port 11 are located. At this time, the blocking plate 52 is located at the bottom end of the L-shaped plate 49 under the action of its own gravity and fits with the block 51. When the liquid level rises, the floating plate 50 will rise with the liquid level and lift the blocking plate 52 upward, so that the blocking plate 52 blocks the first lower overflow port 9 and the second lower overflow port 11.

[0053] In this embodiment, the one-way conduction mechanism includes a porous water distribution pipe 18, a stainless steel protective net 19 and a one-way valve 20. The porous water distribution pipe 18 is horizontally fixed between the two sides of the filter pool 4. The ends of the porous water distribution pipe 18 are connected to the interior of the water storage tank 3. The ends of the porous water distribution pipe 18 are all installed with a one-way valve 20. A stainless steel protective net 19 is provided on the outside of the porous water distribution pipe 18 inside the filter pool 4.

[0054] Local working principle: the water storage tank 3 enters the interior of the filter material tank 4 through the porous water distribution pipe 18, the stainless steel protective net 19 prevents the filter material from being squeezed and clogging the porous water distribution pipe 18, and the one-way valve 20 prevents the liquid inside the filter material tank 4 from flowing back into the water storage tank 3.

[0055] The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. An automatic treatment device for reducing pollution and carbon emissions from overflow sewage in a city pipe network, comprising a sedimentation tank (1), a treatment tank (2), a water storage tank (3) and a filter material tank (4), characterized in that: A sedimentation tank (1) is located inside a riverbed, and the width of the sedimentation tank (1) is equal to that of the riverbed and connected to the opposite bank. A sewage outlet (5) is provided at the end of the sedimentation tank (1). A garbage filtering mechanism (6) is provided inside the sedimentation tank (1) below the sewage outlet (5). A treatment tank (2) is provided on the side of the sedimentation tank (1) and inside the riverbed. The top of the treatment tank (2) is lower than the horizontal plane at the top of the sedimentation tank (1). A garbage sludge collecting mechanism (7) for collecting sludge impurities inside the sedimentation tank (1) and the treatment tank (2) is provided at the tail end of the sedimentation tank (1) and located on the riverbank. A dosing mechanism is provided at the inner top of the treatment tank (2). A first upper overflow port (8) is provided at the top between the sedimentation tank (1) and the treatment tank (2) and below the garbage filtering mechanism (6). A first lower overflow port (9) is provided at the bottom between the sedimentation tank (1) and the treatment tank (2). A water storage tank (3) is provided on a side away from the sedimentation tank (1); a second upper overflow port (10) is provided at the top between the treatment tank (2) and the water storage tank (3); a second lower overflow port (11) is provided at the bottom between the treatment tank (2) and the water storage tank (3); the second upper overflow port (10) and the second lower overflow port (11) are respectively lower than the horizontal planes of the first upper overflow port (8) and the first lower overflow port (9); a flow blocking mechanism (12) is provided below the first lower overflow port (9) in the sedimentation tank (1) and below the second lower overflow port (11) in the treatment tank (2); a filter material pool (4) connected to the inside of the water storage tank (3) is provided on a side away from the treatment tank (2); a water-emergent plant (13) is planted on the top of the filter material pool (4); a filter filler (14) is provided inside the filter material pool (4); and a one-way conduction mechanism is provided between the water storage tank (3) and the filter material pool (4); The garbage filtering mechanism (6) comprises a V-shaped support rod (21), a rotating roller (22), a filtering conveyor belt (23) and a vertical plate (24), wherein the V-shaped support rod (21) is evenly fixed between two sides of the sedimentation tank (1), and rotating rollers (22) are rotatably mounted at both ends and the middle of the V-shaped support rod (21), and filtering conveyor belts (23) are arranged between the rotating rollers (22) on the plurality of groups of V-shaped support rods (21), and vertical plates (24) are vertically mounted on the surface of the filtering conveyor belt (23); The dosing mechanism comprises a sensor (15), a dosing pipe (16) and a dispensing assembly (17); the sensor (15) is installed inside the first upper overflow port (8) and the first lower overflow port (9); the dosing pipes (16) are evenly arranged between the two ends of the top of the treatment tank (2); and the dispensing assembly (17) for conveying flocculation and precipitation mother liquid inside the dosing pipe (16) is arranged outside the treatment tank (2); The flow blocking mechanism (12) comprises an L-shaped plate (49), a floating plate (50), a stopper (51) and a blocking plate (52). The L-shaped plate (49) is symmetrically arranged on both sides of the first lower overflow outlet (9) and the second lower overflow outlet (11). The bottom end of each L-shaped plate (49) is fixed with a stopper (51). A blocking plate (52) is slidably arranged between the two groups of L-shaped plates (49). The top of the blocking plate (52) is provided with a floating plate (50). The blocking plate (52) is in contact with the inner walls of the sedimentation tank (1) and the treatment tank (2).

2. According to claim 1, an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in urban pipe networks is characterized by: The filter conveyor belt (23) comprises a filter screen (25), a net bag (26) and filter material (27); the filter screen (25) is annular and is located outside the rotating roller (22); the vertical plate (24) is fixed on the surface of the filter screen (25); the inner side of the filter screen (25) is provided with a net bag (26) that is in contact with the surface of the rotating roller (22); and the interior of the net bag (26) is filled with the filter material (27).

3. According to claim 2, an automatic treatment device for reducing pollution and carbon emissions from overflow sewage in urban pipe networks is characterized by: The garbage sludge collection mechanism (7) comprises a sludge collection well (31), an impurity collection tank (32) and an impurity inlet (33). The sludge collection well (31) is vertically arranged on the bank, and the top of the sludge collection well (31) is flush with the river bank. The depth of the bottom of the sludge collection well (31) is at least 50 cm lower than that of the sedimentation tank (1). The bottom of the sludge collection well (31) is connected to the bottom of the sedimentation tank (1) and the bottom of the treatment tank (2). A sludge pump for extracting sludge is installed at the bottom of the sludge collection well (31). An impurity collecting tank (32) is provided. An impurity inlet (33) communicating with the interior of the sedimentation tank (1) is provided on the side of the impurity collecting tank (32). A filter screen (25) extends into the interior of the impurity inlet (33). A screen frame (34) is provided at the inner bottom of the impurity collecting tank (32). Brackets (36) are provided at both ends of the top of the impurity collecting tank (32). A wire roller (37) is rotatably mounted on the bracket (36). A suspension rope (35) is wound around both ends of the wire roller (37). The bottom end of the suspension rope (35) is fixedly connected to both ends of the screen frame (34).

4. The automatic treatment device for reducing pollution and carbon emissions from overflow sewage in urban pipe networks according to claim 3 is characterized by: The medicine dispensing component (17) comprises a box body (38), a medicine mixing bin (39), a medicine storage bin (40), a stirring motor (45), a stirring shaft (46), a water adding pump (47), a medicine draining pump (48) and a flocculant adding component. The inner bottom of the box body (38) is provided with a medicine mixing bin (39), the inner top of the box body (38) is provided with a medicine storage bin (40), the bottom of the medicine storage bin (40) is provided with a flocculant adding component, the inner bottom of the medicine mixing bin (39) is provided with a stirring motor (45), and the stirring motor (45) is provided with a stirring shaft (46). The output end of the machine (45) is provided with a stirring shaft (46); a water adding pump (47) is provided at the top of the outer side of the box body (38); the input end of the water adding pump (47) is connected to the inside of the water storage tank (3); the output end of the water adding pump (47) is connected to the inside of the medicine mixing chamber (39); a medicine draining pump (48) is provided at the bottom of the outer side of the box body (38); the input end of the medicine draining pump (48) is connected to the inside of the medicine mixing chamber (39); and the output end of the medicine draining pump (48) is connected to the medicine adding pipe (16).

5. The automatic treatment device for reducing pollution and carbon emissions from overflow sewage in urban pipe networks according to claim 4 is characterized by: The flocculant addition component comprises a drug dispensing port (41), a rotating disk (42), a quantitative groove (43) and a partition (44). The drug dispensing port (41) is provided on one side of the bottom of the drug storage bin (40). A partition (44) is fixed horizontally below the drug dispensing port (41). A rotating disk (42) is rotatably installed between the top of the partition (44) and the bottom of the drug storage bin (40). The top end of the stirring shaft (46) is fixedly connected to the middle position of the bottom of the rotating disk (42). The rotating disk (42) is provided with a quantitative groove (43) that cooperates with the drug dispensing port (41).

6. The automatic treatment device for reducing pollution and carbon emissions from overflow sewage in urban pipe networks according to claim 5 is characterized by: A rotating rod (28) is evenly mounted on one side of the treatment tank (2) close to the sedimentation tank (1), and the rotating rod (28) is located below the first upper overflow port (8) and the first lower overflow port (9). An impeller (30) is mounted on one end of the rotating rod (28) close to the sedimentation tank (1), and stirring rods (29) are evenly mounted on the outside of the rotating rod (28).

7. The automatic treatment device for reducing pollution and carbon emissions from overflow sewage in urban pipe networks according to claim 6 is characterized by: The one-way conduction mechanism comprises a porous water distribution pipe (18), a stainless steel protective net (19) and a one-way valve (20). The porous water distribution pipe (18) is horizontally fixed between two sides of the filter material pool (4). The ends of the porous water distribution pipe (18) are connected to the inside of the water storage pool (3). The ends of the porous water distribution pipe (18) are both installed with a one-way valve (20). The stainless steel protective net (19) is provided on the outside of the porous water distribution pipe (18) inside the filter material pool (4).

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