Urban domestic sewage treatment device

Abstract

The invention discloses an urban domestic sewage treatment device, and belongs to the technical field of air pollution abatement, the urban domestic sewage treatment device comprises a shell, the top of the device shell is fixedly connected with a device top shell, and the device shell is internally provided with two sewage treatment mechanisms; a sewage conveying assembly is fixedly connected between the tops of the two sewage treatment mechanisms, a sludge conveying mechanism and an aeration mechanism are arranged on the front end face between the two sewage treatment mechanisms, and a waste gas chemical treatment mechanism is installed on the other side of the interior of the device shell; the top of the waste gas chemical treatment mechanism is fixedly connected with a waste gas biological treatment mechanism. By designing the waste gas chemical treatment mechanism and the waste gas biological treatment mechanism, water-soluble and reacted gases such as hydrogen sulfide in the waste gas are firstly removed, and then organic matters in the waste gas are adsorbed and degraded, so that the treatment of the waste gas is realized.

Description

Technical Field

[0001] The invention belongs to the field of air pollution control technology, and specifically relates to a device for treating urban domestic sewage. Background Art

[0002] Domestic sewage has many impacts on air pollution. First, domestic sewage contains a large amount of organic matter, such as protein and carbohydrates. After being discharged into the environment, these organic matters will decompose and ferment under the action of microorganisms to produce greenhouse gases such as methane. The greenhouse effect of methane is stronger than that of carbon dioxide. Large-scale emissions will aggravate global warming and cause serious damage to the atmospheric environment. Secondly, if nutrients such as nitrogen and phosphorus in domestic sewage are not effectively treated, it will lead to eutrophication of water bodies. In eutrophic water bodies, algae and other plankton will multiply in large numbers. After they die, they will be decomposed by microorganisms. This process will consume dissolved oxygen in the water and release gases with foul odors such as hydrogen sulfide, which will not only affect air quality, but also cause trouble to the lives of surrounding residents. In addition, some domestic sewage may contain volatile organic pollutants. These substances will evaporate into the atmosphere during sewage treatment or after being discharged into the environment, participate in photochemical reactions, and form secondary pollutants such as photochemical smog, further deteriorating the quality of the atmospheric environment.

[0003] Most of the existing domestic sewage treatment devices only purify the sewage, while the polluted gases generated in the sewage treatment process are directly discharged into the air, seriously affecting the air quality. At the same time, the existing devices are difficult to handle the precipitation generated by internal biological treatment steps, and the subsequent cleaning work is more troublesome. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a device for treating urban domestic sewage.

[0005] The technical solution adopted to solve the above technical problems is: to provide a municipal domestic sewage treatment device, comprising a device shell, the top of which is fixedly connected to a device top shell, and two sewage treatment mechanisms are respectively arranged inside the device shell; A sewage conveying assembly is fixedly connected between the tops of the two sewage treatment mechanisms, and a sludge conveying mechanism and an aeration mechanism are respectively provided on the front end surfaces between the two sewage treatment mechanisms; A waste gas chemical treatment mechanism is installed on the other side of the device shell, a waste gas biological treatment mechanism is fixedly connected to the top of the waste gas chemical treatment mechanism, a waste gas output pipeline is installed on the top of the waste gas biological treatment mechanism, and a control and debugging component is installed on one side of the device shell.

[0006] Furthermore, the sewage treatment mechanism includes a double-conical bottom shell, the top of the double-conical bottom shell is fixedly connected to an integrated shell, the bottom of the inner wall of the double-conical bottom shell is fixedly connected to a conical limiting shell, the top center of the integrated shell is rotatably connected to a connecting shaft rod, the top and bottom of the connecting shaft rod are respectively fixedly connected to a first pulley and a transmission square rod, a hydraulic cylinder is installed on the inner surface of the bottom of the device shell at the bottom of the conical limiting shell, a transmission rod is arranged between the top of the hydraulic cylinder and the transmission square rod, and a transmission spiral blade is fixedly connected to the center of the outer wall of the transmission rod. A multi-tooth chuck is provided at the bottom of the outer wall of the transmission rod, a supporting sleeve is fixedly connected to the inner wall of the integrated shell, a connecting circular sleeve is rotatably connected to the top of the conical limit shell, scrapers are fixedly connected to both sides of the bottom of the connecting circular sleeve, a first valve port assembly is fixedly connected to the bottom of the front end surface of the double frustum-shaped bottom shell, a driving motor is installed at the top of the top shell of the device, a second pulley is installed at the output end of the driving motor inside the top shell of the device, two transmission belts are installed between the second pulley and the first pulley, and a liquid level sensor is fixedly connected to the top of the inner wall of the integrated shell.

[0007] Through the above technical solution, after the sludge is transmitted to the sewage in the sewage treatment mechanism, the driving motor starts to drive the second pulley to rotate, and drives the first pulley to rotate through the transmission belt, and realizes driving the transmission rod to rotate by connecting the shaft rod and the transmission square rod. At this time, the sewage and sludge at the bottom are pumped to the top together through the transmission spiral blades and the support sleeve and then diffused to the four sides to achieve uniform mixing, and continue to stir during the subsequent aeration process to accelerate the degradation rate of microorganisms. After the degradation is completed, the sewage can be released by opening the first valve port assembly. After the release is completed, the hydraulic cylinder drives the entire transmission rod to rise, and slides on the outer wall of the transmission square rod. At the same time, the multi-tooth chuck is engaged with the inside of the connecting circular sleeve. At this time, the driving motor slowly drives the first pulley to rotate through the second pulley and the transmission belt, and then drives the meshing connecting circular sleeve through the rotation of the transmission rod and the multi-tooth chuck. The sludge on the conical limit shell and the sediment produced by microbial degradation are continuously scraped off through two scraper plates. As the sediment is continuously scraped off and moves downward on the outer wall of the conical limit shell, it is finally output through the first valve port assembly to achieve rapid cleaning of the sediment produced by the treatment. When the other sewage treatment mechanism is filled with domestic sewage, the cleaned sewage treatment mechanism can be put into use, so as to achieve continuous sewage treatment and waste gas purification.

[0008] Furthermore, a square groove corresponding to the transmission square rod is formed on the top of the transmission rod, and the transmission rod and the transmission square rod are slidably connected, and a groove corresponding to the multi-tooth chuck is formed on the top inner surface of the connecting circular sleeve.

[0009] The above technical solution ensures that when the transmission rod drives the multi-tooth chuck to rise and engage with the connecting circular sleeve, the transmission square rod can still provide power transmission to the transmission rod.

[0010] Furthermore, the sewage conveying assembly includes a sewage transmission pipeline installed between the top shell of the device and the two sewage treatment mechanisms, and a second valve port assembly is installed between the sewage transmission pipeline and the two sewage treatment mechanisms.

[0011] Through the above technical solution, different sewage treatment mechanisms are replaced by two second valve port assemblies to store sewage, so that the continuous operation of the entire device can be achieved.

[0012] Furthermore, the sludge conveying mechanism includes a sludge storage box, a transmission auger assembly is installed on the sludge storage box, a sludge transmission pipeline is fixedly connected to one side of the outer wall of the transmission auger assembly, two third valve port assemblies are installed on the outer wall of one end of the sludge transmission pipeline, and a two-way mud outlet pipe is installed on the other side of the two third valve port assemblies.

[0013] Through the above technical solution, the third valve port assembly corresponding to the sewage treatment mechanism is opened, and the mud-water mixture containing microorganisms in the sludge storage box is transmitted to the corresponding third valve port assembly and the two-way mud outlet pipe through the transmission auger assembly through the sludge transmission pipeline, and the sludge enters the sewage in the sewage treatment mechanism. The sludge can be released on both sides of the center of the sewage treatment mechanism through the two-way mud outlet pipe, which is convenient for subsequent stirring.

[0014] Furthermore, the aeration mechanism includes an air compressor, the output end of the air compressor is fixedly connected to an air transmission pipe, two air pipelines are installed on the outer wall of the air transmission pipe, a fourth valve port assembly is installed between the air transmission pipe and the two air pipelines, aeration rings are fixedly connected to the two air pipelines, a fixed bracket is installed between the two aeration rings and the corresponding sewage treatment mechanism, and multiple air outlets are installed at the bottom of the two aeration rings.

[0015] Through the above technical solution, the fourth valve port assembly at the corresponding position is opened, and the air is continuously transported through the air transmission pipeline and the corresponding gas pipeline by the drive of the air compressor, and the gas is transported from the bottom through the aeration ring and multiple air outlets to provide oxygen for the growth of microorganisms, so as to achieve sewage treatment by microbial degradation of organic matter in sewage.

[0016] Furthermore, the exhaust gas chemical treatment mechanism includes a reaction liquid storage box installed on the other side of the bottom inner surface of the device shell, the bottom of the reaction liquid storage box is fixedly connected to the exhaust gas transmission pipe, and a fifth valve port assembly is installed between the exhaust gas transmission pipe and the two sewage treatment mechanisms. A one-way valve is fixedly connected to the center of the bottom inner surface of the reaction liquid storage box, a double-conical guide shell is fixedly connected to the bottom inner surface of the reaction liquid storage box, a guide dispersion shell is fixedly connected to the top center of the reaction liquid storage box, a connecting pipe is fixedly connected to one side of the bottom of the reaction liquid storage box, a double-end connector is installed at the other end of the double-end connector, and a transparent liquid level tube is installed at the other end of the double-end connector.

[0017] Through the above technical solution, when aeration is performed, the fifth valve port assembly at the corresponding position is opened, and the gas passes through the sewage and carries the generated waste gas through the waste gas transmission pipeline and the one-way valve into the interior of the reaction liquid storage box. The gas is dispersed through the bottom of the double-conical guide shell, and at the same time, the inclined structure effectively prolongs the time of the gas in the reaction liquid, effectively removes water-soluble and reactive gases such as hydrogen sulfide in the waste gas, and the waste gas diffuses upward through the guide dispersion shell.

[0018] Furthermore, the waste gas biological treatment mechanism includes an adsorption shell fixedly connected to the top of the waste gas chemical treatment mechanism, and the inner wall of the adsorption shell is respectively provided with a uniformly distributed gravel layer, an activated carbon filter material layer, a volcanic rock filter material layer and a polyurethane foam filter material layer from bottom to top.

[0019] Through the above technical scheme, the exhaust gas is transmitted upward from the bottom of the evenly distributed gravel layer, and the exhaust gas can be effectively evenly distributed through the evenly distributed gravel layer so that the subsequent degradation is more sufficient. The high-concentration organic matter in the exhaust gas is first adsorbed by the activated carbon filter layer, and then the volcanic rock filter layer with a good pore structure can provide sufficient attachment space and good ventilation conditions for microorganisms, which can effectively promote biodegradation when the exhaust gas passes through. Finally, the polyurethane foam filter layer is used to further filter and adsorb the remaining organic matter, thereby realizing the treatment of the exhaust gas, and then it is discharged into the atmosphere through the exhaust gas output pipe.

[0020] Furthermore, the volume of the stone particles in the evenly distributed gravel layer gradually decreases from bottom to top.

[0021] Through the above technical solution, the gas is evenly distributed through the gradual change in the volume of the stone particles. The larger stones at the bottom take in air, and the smaller stones at the top produce more and dense gaps, thereby achieving uniform distribution of gas and facilitating subsequent biodegradation.

[0022] The beneficial effects of the present invention are as follows: (1) The present invention designs a waste gas chemical treatment mechanism and a waste gas biological treatment mechanism. Various waste gases generated in the process of domestic sewage treatment can be collected and transmitted, and first react with the reaction liquid to effectively remove water-soluble and reactive gases such as hydrogen sulfide in the waste gas. The double-conical guide shell structure prolongs the time the gas stays in the reaction liquid to make the reaction more complete. The waste gas is then evenly dispersed through the evenly distributed gravel layer in the waste gas biological treatment mechanism, and the high-concentration organic matter in the waste gas is adsorbed through the activated carbon filter layer. The organic matter in the waste gas can be degraded through the volcanic rock filter layer with microorganisms. Finally, the remaining organic matter is further filtered and adsorbed through the polyurethane foam filter layer to achieve the treatment of the waste gas. (2) The present invention designs the transmission square rod, multi-tooth chuck, connecting circular sleeve and scraper in the sewage treatment mechanism. When cleaning, the multi-tooth chuck and the connecting circular sleeve are engaged by the rising of the transmission rod, so that the transmission rod originally used for stirring can drive the two scrapers to rotate, and the sludge on the conical limit shell and the sediment produced by microbial degradation are scraped off. Finally, the sediment produced by the treatment is quickly cleaned up through the output from the first valve port assembly; (3) The present invention designs two sewage treatment mechanisms to cycle and treat alternately. When the other sewage treatment mechanism is filled with domestic sewage, the cleaned sewage treatment mechanism can be put into use, thereby realizing continuous sewage treatment and exhaust gas purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 yes Figure 3 A schematic diagram of the side structure of Figure 5 It is a schematic diagram of the structure of the sewage treatment mechanism of the present invention; Figure 6 It is a schematic diagram of the internal structure of the sewage treatment mechanism of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the sewage treatment mechanism of the present invention; Figure 8 It is a schematic diagram of a three-dimensional cross-sectional structure of a sewage treatment mechanism of the present invention; Fig. 9 It is a schematic diagram of the partial structure explosion of the sewage treatment mechanism of the present invention; Fig.10 It is a schematic diagram of the structure of the multi-tooth chuck of the present invention; Fig.11 It is a schematic diagram of the connecting sleeve structure of the present invention; Fig.12 yes Figure 2 A partial enlarged view of the middle A; Fig.13 It is a schematic diagram of the structure of the sludge conveying mechanism of the present invention; Fig.14 It is a schematic diagram of the structure of the aeration mechanism of the present invention; Fig.15 It is a schematic diagram of the gas outlet structure of the present invention; Fig.16 It is a schematic diagram of the bottom structure of the waste gas chemical treatment mechanism of the present invention; Fig.17 It is a schematic cross-sectional structure diagram of the waste gas chemical treatment mechanism of the present invention; Fig.18 It is a schematic diagram of the three-dimensional cross-sectional structure of the waste gas chemical treatment mechanism of the present invention.

[0024] Figure numerals: 1. device housing; 2. device top shell; 3. sewage treatment mechanism; 301. double truncated cone bottom shell; 302. integrated shell; 303. conical limit shell; 304. connecting shaft; 305. first pulley; 306. transmission square rod; 307. hydraulic cylinder; 308. transmission rod; 309. transmission spiral blade; 310. multi-tooth chuck; 311. support sleeve; 312. connecting round sleeve; 313. scraper; 314. first valve port assembly; 315. drive motor; 316. second pulley; 317. transmission belt; 318. liquid level sensor; 4. sewage conveying assembly; 41. sewage transmission pipeline; 42. second valve port assembly; 5. sludge conveying mechanism; 501. sludge storage box; 502. transmission auger assembly; 503. sludge transmission pipeline; 504. third valve 1. The exhaust gas chemical treatment mechanism is as follows: 1. The exhaust gas chemical treatment mechanism is as follows: 2. The exhaust gas chemical treatment mechanism is as follows: 3. The exhaust gas chemical treatment mechanism is as follows: 4. The exhaust gas chemical treatment mechanism is as follows: 5. The exhaust gas chemical treatment mechanism is as follows: 6. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 5. The exhaust gas chemical treatment mechanism is as follows: 5. The exhaust gas chemical treatment mechanism is as follows: 6. The exhaust gas chemical treatment mechanism is as follows: 6. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. The exhaust gas chemical treatment mechanism is as follows: 7. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] like Figure 1-Figure 12As shown, a kind of urban domestic sewage treatment device of this embodiment includes a device shell 1, the top of the device shell 1 is fixedly connected to the device top shell 2, two sewage treatment mechanisms 3 are respectively arranged inside the device shell 1, and the sewage treatment mechanism 3 includes a double frustoconical bottom shell 301, the top of the double frustoconical bottom shell 301 is fixedly connected to an integrated shell 302, the bottom of the inner wall of the double frustoconical bottom shell 301 is fixedly connected to a conical limiting shell 303, the top center of the integrated shell 302 is rotatably connected to a connecting shaft 304, the top and bottom of the connecting shaft 304 are respectively fixedly connected to a first pulley 305 and a transmission square rod 306, and a hydraulic cylinder 307 is installed on the inner surface of the bottom of the device shell 1 at the bottom of the conical limiting shell 303, and the hydraulic cylinder 307 A transmission rod 308 is arranged between the top and the transmission square rod 306, a transmission spiral blade 309 is fixedly connected to the center of the outer wall of the transmission rod 308, a multi-tooth chuck 310 is arranged at the bottom of the outer wall of the transmission rod 308, a support sleeve 311 is fixedly connected to the inner wall of the integrated shell 302, a connecting circular sleeve 312 is rotatably connected to the top of the conical limiting shell 303, and scrapers 313 are fixedly connected to both sides of the bottom of the connecting circular sleeve 312, a first valve port assembly 314 is fixedly connected to the bottom of the front end surface of the double frustum-shaped bottom shell 301, a driving motor 315 is installed at the top of the device top shell 2, a second pulley 316 is installed at the output end of the driving motor 315 inside the device top shell 2, and two transmission belts 316 are installed between the second pulley 316 and the first pulley 305 7. A liquid level sensor 318 is fixedly connected to the top of the inner wall of the integrated housing 302. After the sludge is transmitted to the sewage in the sewage treatment mechanism 3, the driving motor 315 starts to drive the second pulley 316 to rotate, and drives the first pulley 305 to rotate through the transmission belt 317, and drives the transmission rod 308 to rotate by connecting the shaft rod 304 and the transmission square rod 306. At this time, the sewage and sludge at the bottom are pumped to the top together through the transmission spiral blade 309 and the support sleeve 311 and then diffused to the four sides to achieve uniform mixing, and continue to stir in the subsequent aeration process to accelerate the degradation rate of microorganisms. After the degradation is completed, the sewage can be released by opening the first valve port assembly 314. After the release is completed, the hydraulic cylinder 307 drives The whole transmission rod 308 is driven to rise and slide on the outer wall of the transmission square rod 306. At this time, the multi-tooth chuck 310 is meshed in the connecting circular sleeve 312. At this time, the driving motor 315 slowly drives the first pulley 305 to rotate through the second pulley 316 and the transmission belt 317, and then drives the meshing connecting circular sleeve 312 through the rotation of the transmission rod 308 and the multi-tooth chuck 310. The sludge on the conical limiting shell 303 and the sediment produced by microbial degradation are continuously scraped off through two scraper plates 313. As the sediment is continuously scraped off and moves downward on the outer wall of the conical limiting shell 303, it is finally output through the first valve port assembly 314 to achieve rapid cleaning of the sediment produced by the treatment. When the other sewage treatment mechanism 3 is filled with domestic sewage,The cleaned sewage treatment mechanism 3 can be put into use to achieve continuous sewage treatment and waste gas purification. The top of the transmission rod 308 is provided with a square groove corresponding to the transmission square rod 306, and the transmission rod 308 and the transmission square rod 306 are slidably connected. The top inner surface of the connecting sleeve 312 is provided with a groove corresponding to the multi-tooth chuck 310, which ensures that when the transmission rod 308 drives the multi-tooth chuck 310 to rise and engage with the connecting sleeve 312, the transmission square rod 306 can still provide power transmission to the transmission rod 308.

[0027] like Figure 1-Figure 13 As shown, a sewage conveying assembly 4 is fixedly connected between the tops of the two sewage treatment mechanisms 3, and the sewage conveying assembly 4 includes a sewage transmission pipe 41 installed between the device top shell 2 and the two sewage treatment mechanisms 3, and a second valve port assembly 42 is installed between the sewage transmission pipe 41 and the two sewage treatment mechanisms 3. Different sewage treatment mechanisms 3 are replaced by the two second valve port assemblies 42 to store sewage so that the continuous operation of the entire device can be achieved. The front end surfaces between the two sewage treatment mechanisms 3 are respectively provided with a sludge conveying mechanism 5 and an aeration mechanism 6. The sludge conveying mechanism 5 includes a sludge storage box 501, and a transmission auger assembly 502 is installed on the sludge storage box 501. The transmission auger assembly A sludge transmission pipe 503 is fixedly connected to one side of the outer wall of 502, and two third valve port assemblies 504 are installed on the outer wall of one end of the sludge transmission pipe 503. A two-way mud outlet pipe 505 is installed on the other side of the two third valve port assemblies 504. The third valve port assembly 504 corresponding to the sewage treatment mechanism 3 is opened, and the mud-water mixture containing microorganisms in the sludge storage box 501 is transmitted to the corresponding third valve port assembly 504 and the two-way mud outlet pipe 505 through the transmission auger assembly 502. The sludge enters the sewage in the sewage treatment mechanism 3, and the sludge can be released on both sides of the inner center of the sewage treatment mechanism 3 through the two-way mud outlet pipe 505, which is convenient for subsequent stirring.

[0028] like Figure 1-Figure 15As shown, the aeration mechanism 6 includes an air compressor 601, the output end of the air compressor 601 is fixedly connected to an air transmission pipeline 602, two gas pipelines 603 are installed on the outer wall of the air transmission pipeline 602, a fourth valve port assembly 604 is installed between the air transmission pipeline 602 and the two gas pipelines 603, an aeration ring 605 is fixedly connected to the two gas pipelines 603, a fixed bracket 606 is installed between the two aeration rings 605 and the corresponding sewage treatment mechanism 3, and a plurality of air outlets 607 are installed at the bottom of the two aeration rings 605. The fourth valve port assembly 604 at the corresponding position is opened, and air is continuously transported through the air transmission pipeline 602 and the corresponding gas pipeline 603 through the drive of the air compressor 601, and gas is transported from the bottom through the aeration ring 605 and the plurality of air outlets 607 to provide oxygen for the growth of microorganisms, and to treat sewage by degrading organic matter in sewage through microorganisms.

[0029] like Figure 1-Figure 18 As shown, an exhaust gas chemical treatment mechanism 7 is installed on the other side of the device housing 1, and the exhaust gas chemical treatment mechanism 7 includes a reaction liquid storage box 701 installed on the other side of the bottom inner surface of the device housing 1, and an exhaust gas transmission pipeline 702 is fixedly connected to the bottom of the reaction liquid storage box 701, and a fifth valve port assembly 703 is installed between the exhaust gas transmission pipeline 702 and the two sewage treatment mechanisms 3. A one-way valve 704 is fixedly connected to the center of the bottom inner surface of the reaction liquid storage box 701, and a double-conical guide shell 705 is fixedly connected to the bottom inner surface of the reaction liquid storage box 701. A guide dispersion shell 706 is fixedly connected to the top center of the reaction liquid storage box 701. A connecting pipe 707 is fixedly connected to one side of the part, and a double-end connector 708 is installed at the other end of the connecting pipe 707. A transparent liquid level tube 709 is installed at the other end of the double-end connector 708. When aeration is performed, the fifth valve assembly 703 at the corresponding position is opened, and the gas passes through the sewage and carries the generated waste gas through the waste gas transmission pipe 702 and the one-way valve 704 to enter the interior of the reaction liquid storage box 701. The gas is dispersed through the bottom of the double-conical guide shell 705. At the same time, the inclined structure effectively prolongs the time the gas stays in the reaction liquid, and effectively removes water-soluble and reactive gases such as hydrogen sulfide in the waste gas. The waste gas diffuses upward through the guide dispersion shell 706.

[0030] like Figure 1-Figure 18As shown, the top of the waste gas chemical treatment mechanism 7 is fixedly connected to the waste gas biological treatment mechanism 8, and the waste gas biological treatment mechanism 8 includes an adsorption shell 801 fixedly connected to the top of the waste gas chemical treatment mechanism 7, and the inner wall of the adsorption shell 801 is respectively provided with a crushed stone uniform distribution layer 802, an activated carbon filter material layer 803, a volcanic rock filter material layer 804 and a polyurethane foam filter material layer 805 from bottom to top. The waste gas is transmitted upward from the bottom of the crushed stone uniform distribution layer 802. The crushed stone uniform distribution layer 802 can effectively distribute the waste gas evenly so that the subsequent degradation is more sufficient. The high-concentration organic matter in the waste gas is first adsorbed by the activated carbon filter material layer 803, and then passes through the volcanic rock filter material layer 804 with a good pore structure. It can provide sufficient attachment space and good ventilation conditions for microorganisms, and can effectively promote biodegradation when the waste gas passes through. Finally, the polyurethane foam filter layer 805 is used to further filter and adsorb the remaining organic matter to achieve waste gas treatment, and then the waste gas is discharged into the atmosphere through the waste gas output pipe 9. The volume of the gravel uniformly distributed layer 802 gradually decreases from bottom to top, and the gas is evenly distributed through the gradual change in the volume of the gravel particles. The larger stones at the bottom take in air, and the smaller stones at the top will produce more and dense gaps, so as to achieve uniform distribution of gas and facilitate subsequent biodegradation. The waste gas biological treatment mechanism 8 is equipped with a waste gas output pipe 9 on the top, and a control and debugging component 10 is installed on one side of the device housing 1.

[0031] The working principle of this embodiment is as follows: at the beginning of the operation, one of the second valve port components 42 is opened, and the domestic sewage is transmitted to the corresponding sewage treatment mechanism 3 through the sewage transmission pipe 41 and the second valve port component 42. At this time, the sewage is continuously accumulated, and the liquid level change is detected by the liquid level sensor 318 until it reaches the set value. At this time, the corresponding second valve port component 42 is closed by the control debugging component 10, and the other second valve port component 42 is opened to start conveying sewage to the other sewage treatment mechanism 3, and the sewage treatment mechanism 3 filled with sewage starts to process at the same time; First, the third valve assembly 504 corresponding to the sewage treatment mechanism 3 is opened, and the mud-water mixture with microorganisms in the sludge storage box 501 is transmitted to the corresponding third valve assembly 504 and the two-way mud outlet pipe 505 through the sludge transmission pipeline 503 through the transmission auger assembly 502, and the sludge enters the sewage in the sewage treatment mechanism 3. After the transmission is completed, the third valve assembly 504 is closed, and at this time, the driving motor 315 starts to drive the second pulley 316 to rotate, and drives the first pulley 305 to rotate through the transmission belt 317, and realizes the rotation of the transmission rod 308 by connecting the shaft rod 304 and the transmission square rod 306. At this time, the sewage and sludge at the bottom are pumped to the top together through the transmission spiral blade 309 and the support sleeve 311, and then diffused to the four sides to achieve uniform mixing; Subsequently, the fourth valve assembly 604 at the corresponding position is opened, and the air is continuously transported through the air transmission pipeline 602 and the corresponding gas transmission pipeline 603 driven by the air compressor 601, and the gas is transported from the bottom through the aeration ring 605 and multiple air outlets 607 to provide oxygen for the growth of microorganisms, and the sewage is treated by microorganisms degrading organic matter in the sewage. At the same time, the fifth valve assembly 703 at the corresponding position is opened, and the gas passes through the sewage and carries the generated waste gas through the waste gas transmission pipeline 702 and the one-way valve 704 into the interior of the reaction liquid storage box 701. The gas is dispersed through the bottom of the double-conical guide shell 705, and the inclined structure effectively prolongs the time the gas stays in the reaction liquid, effectively removing water-soluble and reactive gases such as hydrogen sulfide in the waste gas, and the waste gas diffuses upward through the guide dispersion shell 706; The waste gas is transmitted upward from the bottom of the evenly distributed gravel layer 802. The evenly distributed gravel layer 802 can effectively evenly distribute the waste gas so that subsequent degradation is more sufficient. The high-concentration organic matter in the waste gas is first adsorbed by the activated carbon filter layer 803, and then the volcanic rock filter layer 804 with a good pore structure can provide sufficient attachment space and good ventilation conditions for microorganisms, which can effectively promote biodegradation when the waste gas passes through. Finally, the polyurethane foam filter layer 805 is used to further filter and adsorb the remaining organic matter to achieve waste gas treatment, and then discharged into the atmosphere through the waste gas output pipeline 9; Finally, the degraded sewage can be released by opening the first valve port assembly 314. After the release is completed, the hydraulic cylinder 307 drives the overall transmission rod 308 to rise and slide on the outer wall of the transmission square rod 306. At this time, the multi-tooth chuck 310 is engaged with the inside of the connecting circular sleeve 312. At this time, the driving motor 315 slowly drives the first pulley 305 to rotate through the second pulley 316 and the transmission belt 317, and then drives the meshing connecting circular sleeve 312 through the rotation of the transmission rod 308 and the multi-tooth chuck 310. The sludge on the conical limit shell 303 and the sediment produced by microbial degradation are continuously scraped off by two scraper plates 313. As the sediment is continuously scraped off and moves downward on the outer wall of the conical limit shell 303, it is finally output through the first valve port assembly 314 to achieve rapid cleaning of the sediment produced by the treatment.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A device for treating urban domestic sewage, comprising a device housing (1), characterized in that: The top of the device housing (1) is fixedly connected to a device top housing (2), and two sewage treatment mechanisms (3) are respectively arranged inside the device housing (1); A sewage conveying assembly (4) is fixedly connected between the tops of the two sewage treatment mechanisms (3), and a sludge conveying mechanism (5) and an aeration mechanism (6) are respectively provided on the front end surface between the two sewage treatment mechanisms (3); A waste gas chemical treatment mechanism (7) is installed on the other side of the device housing (1), a waste gas biological treatment mechanism (8) is fixedly connected to the top of the waste gas chemical treatment mechanism (7), a waste gas output pipe (9) is installed on the top of the waste gas biological treatment mechanism (8), and a control and debugging component (10) is installed on one side of the device housing (1).

2. The urban domestic sewage treatment device according to claim 1, characterized in that: The sewage treatment mechanism (3) comprises a double truncated cone bottom shell (301), the top of the double truncated cone bottom shell (301) is fixedly connected to an integrated shell (302), the bottom of the inner wall of the double truncated cone bottom shell (301) is fixedly connected to a conical limiting shell (303), the top center of the integrated shell (302) is rotatably connected to a connecting shaft (304), the top and bottom of the connecting shaft (304) are respectively fixedly connected to a first pulley (305) and a transmission square rod (306), a hydraulic cylinder (307) is installed on the inner surface of the bottom of the device housing (1) at the bottom of the conical limiting shell (303), a transmission rod (308) is arranged between the top of the hydraulic cylinder (307) and the transmission square rod (306), the center of the outer wall of the transmission rod (308) is fixedly connected to a transmission spiral blade (309), and the transmission rod ( The multi-tooth chuck (310) is arranged at the bottom of the outer wall of the device (308), the inner wall of the integrated housing (302) is fixedly connected to a support sleeve (311), the top of the conical limiting housing (303) is rotatably connected to a connecting circular sleeve (312), both sides of the bottom of the connecting circular sleeve (312) are fixedly connected to scraper blades (313), the bottom of the front end surface of the double frustoconical bottom housing (301) is fixedly connected to a first valve port assembly (314), the top of the device top housing (2) is installed with a driving motor (315), the output end of the driving motor (315) is installed with a second pulley (316) inside the device top housing (2), two transmission belts (317) are installed between the second pulley (316) and the first pulley (305), and the top of the inner wall of the integrated housing (302) is fixedly connected to a liquid level sensor (318).

3. The urban domestic sewage treatment device according to claim 2, characterized in that: The top of the transmission rod (308) is provided with a square groove corresponding to the transmission square rod (306), and the transmission rod (308) and the transmission square rod (306) are slidably connected, and the top inner surface of the connecting circular sleeve (312) is provided with a groove corresponding to the multi-tooth chuck (310).

4. The urban domestic sewage treatment device according to claim 1, characterized in that: The sewage transport component (4) comprises a sewage transmission pipeline (41) installed between the device top shell (2) and two sewage treatment mechanisms (3), and a second valve port component (42) is installed between the sewage transmission pipeline (41) and the two sewage treatment mechanisms (3).

5. The urban domestic sewage treatment device according to claim 1, characterized in that: The sludge conveying mechanism (5) comprises a sludge storage box (501), a transmission auger assembly (502) being installed on the sludge storage box (501), a sludge transmission pipeline (503) being fixedly connected to one side of the outer wall of the transmission auger assembly (502), two third valve port assemblies (504) being installed on the outer wall of one end of the sludge transmission pipeline (503), and two-way mud outlet pipes (505) being installed on the other sides of the two third valve port assemblies (504).

6. The urban domestic sewage treatment device according to claim 1, characterized in that: The aeration mechanism (6) comprises an air compressor (601), the output end of the air compressor (601) is fixedly connected to an air transmission pipeline (602), two air delivery pipelines (603) are installed on the outer wall of the air transmission pipeline (602), a fourth valve port assembly (604) is installed between the air transmission pipeline (602) and the two air delivery pipelines (603), an aeration ring (605) is fixedly connected to the two air delivery pipelines (603), a fixed bracket (606) is installed between the two aeration rings (605) and the corresponding sewage treatment mechanism (3), and a plurality of air outlets (607) are installed at the bottom of the two aeration rings (605).

7. The urban domestic sewage treatment device according to claim 1, characterized in that: The waste gas chemical treatment mechanism (7) comprises a reaction liquid storage box (701) installed on the other side of the bottom inner surface of the device housing (1); the bottom of the reaction liquid storage box (701) is fixedly connected to a waste gas transmission pipeline (702); a fifth valve port assembly (703) is installed between the waste gas transmission pipeline (702) and the two sewage treatment mechanisms (3); a one-way valve (704) is fixedly connected to the center of the bottom inner surface of the reaction liquid storage box (701); a double-conical flow guide shell (705) is fixedly connected to the bottom inner surface of the reaction liquid storage box (701); a guide dispersion shell (706) is fixedly connected to the center of the top of the reaction liquid storage box (701); a connecting pipe (707) is fixedly connected to one side of the bottom of the reaction liquid storage box (701); a double-end connector (708) is installed at the other end of the connecting pipe (707); and a transparent liquid level tube (709) is installed at the other end of the double-end connector (708).

8. The urban domestic sewage treatment device according to claim 1, characterized in that: The waste gas biological treatment mechanism (8) comprises an adsorption shell (801) fixedly connected to the top of the waste gas chemical treatment mechanism (7), and the inner wall of the adsorption shell (801) is respectively provided with a crushed stone evenly distributed layer (802), an activated carbon filter material layer (803), a volcanic rock filter material layer (804) and a polyurethane foam filter material layer (805) from bottom to top.

9. The urban domestic sewage treatment device according to claim 8, characterized in that: The volume of the stone particles in the evenly distributed gravel layer (802) gradually decreases from bottom to top.

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