Integrated sewage treatment plant
By using centrifugal separation and graded treatment in integrated sewage treatment equipment, the problems of low sewage treatment efficiency and safety hazards in suburban public toilets have been solved, achieving efficient and safe sewage treatment results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2026-03-24
AI Technical Summary
Wastewater treatment in suburban public toilets is inefficient and poses safety hazards. Current technology involves periodically pumping wastewater from sedimentation tanks to treatment plants by transport vehicles, which is inefficient and poses a safety risk due to ammonia accumulation.
The integrated wastewater treatment equipment includes a treatment tank, a centrifuge chamber, a purification tank group, and a digestion tank group. It separates solid-liquid mixtures by centrifugation and uses solenoid valves and drive components to achieve efficient separation and treatment of wastewater. The purification tank group and the digestion tank group treat liquids and floating matter respectively, improving treatment efficiency and avoiding pipe blockage.
It achieves efficient wastewater treatment, improves separation efficiency, avoids pipe blockage, enhances safety, and meets water quality discharge standards.
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Figure CN118459024B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of wastewater purification equipment, and in particular to integrated wastewater treatment equipment. Background Technology
[0002] To meet people's basic travel needs, public toilets (hereinafter referred to as suburban public toilets) need to be built in urban suburbs or tourist areas. However, the construction and management of suburban public toilets face some challenges, such as remote location, unstable traffic flow, limited water and electricity resources, and difficulties in sanitation maintenance. Among these challenges, due to their remote location, sewage generated by suburban public toilets is difficult to connect to the municipal sewage network, making sewage treatment a major obstacle to the construction of suburban public toilets.
[0003] In existing technology, a sedimentation tank is excavated near a public toilet in the suburbs and a sealed structure is installed in the sedimentation tank. Sewage generated from the public toilet is discharged into the sedimentation tank through a sewage pipe for storage. The sealed structure ensures that odors do not escape from the sedimentation tank. At the same time, the sewage in the sedimentation tank is periodically pumped out by transport vehicles and transported to a treatment plant for treatment of the sewage from the public toilet in the suburbs.
[0004] Regarding the aforementioned technologies, the method of periodically extracting and transporting sewage from the sedimentation tanks of public toilets to treatment plants by transport vehicles is inefficient. Furthermore, the sewage stored inside the sedimentation tanks will accumulate a large amount of ammonia over time, posing certain safety hazards. Summary of the Invention
[0005] To reduce the storage time of sewage and increase the efficiency of sewage treatment, a more efficient way to treat sewage is needed. This application provides an integrated sewage treatment device.
[0006] The following technical solution is adopted:
[0007] Integrated wastewater treatment equipment includes a treatment tank and an equipment tank.
[0008] The processing box is equipped with:
[0009] A sewage pipe for transferring sewage, wherein a first solenoid valve is installed on the sewage pipe;
[0010] A centrifuge chamber is rotatably connected to the processing box. The processing box is equipped with a drive assembly that drives the centrifuge chamber to rotate. A first connecting pipe is provided on the top of the centrifuge chamber along the axis. The sewage pipe is fixedly connected to the processing box. The first connecting pipe is rotatably connected to the sewage pipe. A second connecting pipe is provided on the bottom of the centrifuge chamber along the axis. An adjusting pipe is fixedly connected to the processing box. The second connecting pipe is rotatably connected to the adjusting pipe. A second solenoid valve is provided on the adjusting pipe. The second solenoid valve is a three-way valve.
[0011] The purification chamber is used to purify the bottom liquid after centrifugation and is connected to the second solenoid valve through a drain pipe.
[0012] The digestion chamber assembly is used to decompose the floating matter in the upper layer after centrifugation, and is connected to the second solenoid valve through the discharge pipe;
[0013] The equipment box is equipped with a booster pump for pumping sewage into the sewage pipe.
[0014] By adopting the above technical solution, sewage discharged from public toilets is lifted to a centrifuge chamber via sewage pipes and a booster pump. A drive assembly rotates the centrifuge chamber, centrifuging the solid-liquid mixture within. Due to the different densities of the substances in the mixture, materials with a density less than the liquid, such as paper and plastic, float on top of the liquid. This separates the liquid from the paper and plastic materials that can easily clog pipes. Through a drain pipe and a second solenoid valve, the bottom liquid is first discharged into the purification tank assembly, while the paper and plastic materials are discharged into the digestion tank assembly through the discharge pipe. This separation process increases treatment efficiency and prevents pipe blockage.
[0015] Optionally, a first connecting ring is provided circumferentially at the end of the first connecting pipe away from the centrifuge chamber, and a first connecting groove is provided on the inner wall of the end of the sewage pipe near the first connecting pipe for the first connecting ring to rotate.
[0016] The second connecting pipe has a second connecting ring circumferentially arranged at the end away from the centrifuge chamber, and the drain pipe has a second connecting groove on the inner wall of the end near the second connecting pipe for the second connecting ring to rotate.
[0017] By adopting the above technical solution, the first connecting ring and the first connecting groove cooperate to enable the first connecting pipe to be stably rotatably connected to the sewage pipe, thereby enabling the first connecting pipe and the sewage pipe to be stably connected during the rotation of the centrifuge chamber; the second connecting ring and the second connecting groove cooperate in the same way to enable the second connecting pipe to be stably rotatably connected to the drain pipe.
[0018] Optionally, the processing box further includes at least one support ring, which includes a rotating ring, a fixed ring, and a plurality of rolling balls. The rotating ring is circumferentially connected to the centrifuge chamber, and the fixed ring is connected to the frame at a position corresponding to the rotating ring. The rotating ring and the fixed ring are circumferentially arrayed with a plurality of hemispherical grooves on their sides that are close to each other, and the plurality of rolling balls are correspondingly disposed in the grooves.
[0019] By adopting the above technical solution, the rotating ring is connected to the centrifuge chamber. The inner wall of the processing chamber supports the rotating ring and the centrifuge chamber through the fixed ring. Due to the arrangement of several rolling balls, the rotating ring and the fixed ring experience less resistance when they rotate relative to each other, that is, when the centrifuge chamber and the processing chamber rotate relative to each other, and the rotation is more stable and smooth.
[0020] Optionally, the drive assembly includes a drive ring and a first drive member. The drive ring is coaxially disposed at one end of the centrifuge chamber, and the outer wall of the drive ring is provided with teeth. The output end of the first drive member is provided with a drive gear, and the drive gear meshes with the drive ring.
[0021] By adopting the above technical solution, a method for driving the centrifuge chamber to rotate is provided. The output end of the first driving component rotates, thereby driving the drive gear to rotate. The drive gear meshes with the drive ring through its teeth, thereby driving the centrifuge chamber to rotate as a whole.
[0022] Optionally, the second solenoid valve includes a housing, a valve ball, and a second driving member. The housing contains an adjustment chamber for the valve ball to rotate. The adjustment pipe, the drain pipe, and the discharge pipe are all spaced apart and connected to the housing and communicate with the adjustment chamber. The outer wall of the valve ball is provided with three interconnected adjustment grooves spaced apart. When the valve ball rotates, it can first connect the adjustment pipe and the drain pipe and then connect the adjustment pipe and the discharge pipe. The second driving member drives the valve ball to rotate.
[0023] By adopting the above technical solution, after the wastewater is centrifuged, paper, plastic and other materials separate from the liquid. The valve ball rotates to connect the regulating pipe to the drain pipe. The bottom liquid flows through the regulating pipe and regulating tank into the drain pipe, and then enters the purification tank for liquid purification. After the liquid flows out to a suitable level in advance, the valve ball rotates to connect the regulating pipe to the discharge pipe. The floating matter on the upper layer, along with some water, flows through the regulating pipe and regulating tank into the discharge pipe, and then enters the digestion tank, thus treating the paper and plastic materials separately.
[0024] Optionally, the processing box is further provided with an air extraction assembly, which includes an air extraction cylinder, a piston, and a third driving component. One end of the air extraction cylinder is connected to the discharge pipe through an air extraction pipe, and the other end is slidably connected to the piston inside the cylinder. An air valve is provided on the air extraction pipe, and the third driving component drives the piston to move. A third solenoid valve is provided at the end of the discharge pipe away from the second solenoid valve.
[0025] By adopting the above technical solution, when the discharge pipe is not connected to the regulating pipe, one end of the discharge pipe is blocked by the valve ball, and the other end is blocked by the third solenoid valve, forming a sealed space inside the discharge pipe. The third driving component controls the piston to move, thereby causing the air pump to draw air from the discharge pipe through the air pump, creating a negative pressure space inside the discharge pipe. When the valve ball rotates to connect the regulating pipe with the discharge pipe, the mixture of paper, plastic and other materials under negative pressure is quickly sucked into the discharge pipe to prevent the paper, plastic and other materials from adhering to or clogging the regulating pipe, making the mixture fall more smoothly. After the valve ball rotates to connect the discharge pipe and the regulating pipe, the third solenoid valve opens, allowing the paper, plastic and other materials to enter the processing box.
[0026] Optionally, the purification tank assembly includes a bioflocculation tank, a sedimentation tank, and a disinfection tank connected in series. The bioflocculation tank contains a bioflocculating agent, the drain pipe is connected to the bioflocculation tank, the disinfection tank contains an oxidizing agent, and the disinfection tank is equipped with an outlet pipe.
[0027] By adopting the above technical solution, in the purification tank group, the bottom liquid is sequentially treated through a bio-flocculation tank, a sedimentation tank, and a disinfection tank to become water that meets the water quality discharge standards and is then discharged into the natural environment. Specifically, in the bio-flocculation tank, the liquid is treated with a bio-flocculating agent, where a large number of effective microorganisms decompose organic pollutants in the liquid and form flocculated solid matter. After reaching a suitable water quality, the upper layer of liquid is taken and sent to the subsequent sedimentation tank, where the treated water settles. The upper layer of water is then taken to the disinfection tank for detoxification treatment before being discharged.
[0028] Optionally, the bioflocculation box is provided with a stirring mechanism, which includes a first rotating shaft, several support rods and a stirring motor. Several support rods are circumferentially arrayed and connected to the first rotating shaft. The support rods extend in a direction away from the first rotating shaft. The stirring motor drives the first rotating shaft to rotate. The first rotating shaft is rotatably connected to the inside of the bioflocculation box.
[0029] Optionally, the digestion tank assembly includes a crushing tank, a dissolving tank, a neutralizing tank, and a regulating tank connected in series. The crushing tank is equipped with a crushing mechanism, the dissolving tank contains an acidic solvent, the neutralizing tank contains an alkaline neutralizing agent, and the regulating tank is connected to a discharge pipe at its end. A filter element is installed in the regulating tank at the discharge pipe.
[0030] By adopting the above technical solution, in the digestion tank group, the mixture of paper, plastic and other materials with liquid is sequentially processed through a crushing tank, a dissolving tank, a neutralizing tank and a regulating tank to produce water that meets the water quality discharge standards and is then discharged into the natural environment. Specifically, the paper and plastic materials are crushed in the crushing tank by a crushing mechanism, forming a suspension of fine particles floating in the liquid. This suspension then enters the dissolving tank to dissolve the paper particles, and passes through the neutralizing tank to neutralize the mixture in the dissolving tank, during which bacteria are eliminated. Finally, the upper layer of liquid is collected in the regulating tank, and once the water quality is suitable, it is filtered and discharged. The plastic remains in the regulating tank, to be removed along with the flocculent material during subsequent equipment maintenance.
[0031] Optionally, the stirring mechanism includes a second rotating shaft, a plurality of blades and a crushing motor, wherein the plurality of blades are circumferentially arrayed and connected to the second rotating shaft, the blades extend in a direction away from the second rotating shaft, the crushing motor drives the second rotating shaft to rotate, and the second rotating shaft is rotatably connected to the crushing chamber.
[0032] In summary, this application includes at least one of the following beneficial effects:
[0033] 1. Integrated wastewater treatment, transforming wastewater into water that meets discharge standards and improving wastewater purification efficiency;
[0034] 2. Wastewater is sequentially separated into liquid and solid-liquid mixture by centrifuge chamber. The liquid is treated by biological flocculation tank, sedimentation tank and disinfection tank to become water that meets the water quality discharge standards and is discharged into the natural environment. The solid-liquid mixture is treated and filtered by crushing tank, dissolving tank, neutralization tank and equalization tank. Water that meets the water quality discharge standards is discharged, and the remainder is intercepted in equalization tank. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the overall structure of this embodiment;
[0036] Figure 2 This is a cross-sectional structural diagram of this embodiment;
[0037] Figure 3 This is a schematic diagram of the cross-sectional structure of the centrifuge chamber.
[0038] Explanation of reference numerals in the attached drawings: 1. Public toilet; 2. Treatment box; 21. Sewage pipe; 211. First connecting groove; 212. First solenoid valve; 22. Adjusting pipe; 221. Second connecting groove; 23. Second solenoid valve; 231. Housing; 2311. Adjusting chamber; 232. Valve ball; 2321. Adjusting groove; 233. Second driving component; 24. Support ring; 241. Rotating ring body; 2411. Groove; 242. Fixed ring body; 243. Rolling ball; 25. Drain pipe; 26. Discharge pipe; 261. Third solenoid valve; 3. Centrifuge chamber; 31. Bottom shell; 32. Ring shell; 33. First connecting pipe; 331. First connecting ring; 34. Second connecting pipe; 341. Second connecting ring 4. Drive assembly; 41. Drive ring; 411. Tooth; 42. First drive component; 421. Drive gear; 5. Air extraction assembly; 51. Air extraction cylinder; 511. Air extraction pipe; 512. Air valve; 52. Piston; 53. Third drive component; 61. Bioflocculator; 62. Stirring device; 621. First rotating shaft; 622. Support rod; 623. Stirring motor; 63. Sedimentation tank; 64. Disinfection tank; 641. Water outlet pipe; 71. Crushing tank; 72. Crushing mechanism; 721. Second rotating shaft; 722. Blade; 723. Crushing motor; 73. Dissolving tank; 74. Neutralization tank; 75. Regulating tank; 751. Filter element; 752. Discharge pipe; 8. Equipment box. Detailed Implementation
[0039] The following is in conjunction with the appendix Figure 1 To be continued Figure 3 This application will be described in further detail.
[0040] Reference Figure 1 and Figure 2 This application discloses an integrated sewage treatment device, installed next to a public toilet 1 in the suburbs, and connected to the public toilet 1 via a sewage pipe 21. The treatment device includes a treatment tank 2 and an equipment box 8, with the equipment box 8 located above the treatment tank 2. The equipment box 8 is a hollow shell 231, and a lift pump and a dosing device are installed inside the equipment box 8. The lift pump is used to pump sewage into the sewage pipe 21. The dosing device is used to add chemicals into the purification tank group or the digestion tank group, and generally consists of a chemical tank, a pump body, and pipes, which is prior art and will not be described in detail here.
[0041] Reference Figure 2 and Figure 3 Specifically, the treatment tank 2 is equipped with a centrifuge chamber 3, a purification chamber assembly, and a digestion chamber assembly. The centrifuge chamber 3 is rotatably connected to the treatment tank 2 and is used to separate solids and liquids from wastewater. The purification chamber assembly is used to purify the bottom liquid after centrifugation. The digestion chamber assembly is used to decompose the floating matter on the upper layer after centrifugation. The treatment tank 2 is equipped with a drive assembly 4 that drives the centrifuge chamber 3 to rotate.
[0042] Reference Figure 2 and Figure 3 Furthermore, the centrifuge chamber 3 is a hollow shell 231. To ensure a better user experience, the centrifuge chamber 3 can be made of lightweight metal. The centrifuge chamber 3 includes two parts: a bottom shell 31 and an annular shell 32. The bottom shell 31 is a conical shell 231, which facilitates the outflow of internal materials by gravity. The annular shell 32 is connected to the upper part of the bottom shell 31, providing space for the floating matter after centrifugation. The upper end face of the centrifuge chamber 3 is connected to the internal space along the axis by a first connecting pipe 33. The sewage pipe 21 is fixedly connected to the treatment tank 2, and the first connecting pipe 33 is connected to the sewage pipe 21 and is rotatably connected. The lower end face of the centrifuge chamber 3 is connected to the internal space along the axis by a second connecting pipe 34. The treatment tank 2 is fixedly connected to a regulating pipe 22, and the second connecting pipe 34 is connected to the regulating pipe 22 and is rotatably connected. A first solenoid valve 212 is installed on the sewage pipe 21 to control the amount and flow rate of sewage entering the centrifuge chamber 3. A second solenoid valve 23 is installed on the regulating pipe 22. The second solenoid valve 23 is a three-way valve. The purification tank assembly is connected to the second solenoid valve 23 via drain pipe 25. The digestion tank assembly is connected to the second solenoid valve 23 via discharge pipe 26. Water from the bottom is sent to the purification tank assembly for treatment via drain pipe 25. After a suitable time (when the bottom water level is reached), the second solenoid valve 23 connects the regulating pipe 22 and the discharge pipe 26, and the upper solid-liquid mixture is sent to the digestion tank assembly for treatment via discharge pipe 26.
[0043] Reference Figure 2 and Figure 3 Furthermore, a first connecting ring 331 is circumferentially provided at the end of the first connecting pipe 33 furthest from the centrifuge chamber 3, and a first connecting groove 211 is provided on the inner wall of the end of the sewage pipe 21 closest to the first connecting pipe 33 for the first connecting ring 331 to rotate. Through the cooperation of the first connecting ring 331 and the first connecting groove 211, the first connecting pipe 33 can be stably rotatably connected to the sewage pipe 21, thereby ensuring a stable connection between the first connecting pipe 33 and the sewage pipe 21 during the rotation of the centrifuge chamber 3.
[0044] Reference Figure 2 and Figure 3 Furthermore, a second connecting ring 341 is circumferentially provided at the end of the second connecting pipe 34 away from the centrifuge chamber 3, and a second connecting groove 221 is provided on the inner wall of the end of the regulating pipe 22 near the second connecting pipe 34 for the second connecting ring 341 to rotate. Through the cooperation of the second connecting ring 341 and the second connecting groove 221, the second connecting pipe 34 can be stably rotatably connected to the regulating pipe 22, thereby ensuring a stable connection between the second connecting pipe 34 and the regulating pipe 22 during the rotation of the centrifuge chamber 3.
[0045] Reference Figure 2 and Figure 3Furthermore, the processing chamber 2 also includes at least one support ring 24, which comprises a rotating ring 241, a fixed ring 242, and a plurality of rolling balls 243. The rotating ring 241 is circumferentially connected to the centrifuge chamber 3, and the fixed ring 242 is connected to the processing chamber 2 at positions corresponding to the rotating ring 241. A plurality of hemispherical grooves 2411 are circumferentially arranged on the sides of the rotating ring 241 and the fixed ring 242 that are close to each other. Two corresponding grooves 2411 form a sphere for the rolling balls 243 to be placed in, and there is a gap between the rotating ring 241 and the fixed ring 242. The plurality of rolling balls 243 are correspondingly disposed in the grooves 2411. The rotating ring 241 is connected to the centrifuge chamber 3. The processing box 2 supports the rotating ring 241 and the centrifuge chamber 3 through the fixed ring 242. Due to the arrangement of several rolling balls 243, the rotating ring 241 and the fixed ring 242 experience less resistance when rotating relative to each other, that is, when the centrifuge chamber 3 rotates relative to the frame, resulting in more stable and smoother rotation.
[0046] Reference Figure 2 and Figure 3 Furthermore, the drive assembly 4 includes a drive ring 41 and a first drive member 42. The drive ring 41 is coaxially disposed at one end of the centrifuge chamber 3, and its outer wall is provided with teeth 411. The first drive member 42 is a motor, and its housing is fixed in the processing box 2. The output end of the first drive member 42 is provided with a drive gear 421. The drive gear 421 meshes with the drive ring 41. The rotation of the output end of the drive member drives the drive gear 421 to rotate. The drive gear 421 meshes with the drive ring 41 through the teeth 411, thereby driving the centrifuge chamber 3 to rotate as a whole.
[0047] Reference Figure 2 and Figure 3Furthermore, the second solenoid valve 23 includes a housing 231, a valve ball 232, and a second driving component 233. The housing 231 contains an adjusting chamber 2311 for rotating the valve ball 232. The adjusting pipe 22, drain pipe 25, and discharge pipe 26 are all spaced apart and connected to the housing 231, communicating with the adjusting chamber 2311. Three interconnected adjusting grooves 2321 are spaced apart on the outer wall of the valve ball 232. The adjusting grooves 2321 are all arranged along the radius of the valve ball 232 and converge at the center, and are arranged in a staggered manner. When the valve ball 232 rotates, it first connects the adjusting pipe 22 and the drain pipe 25, and then connects the adjusting pipe 22 and the discharge pipe 26. The second driving component 233 is a stepper motor, which drives the valve ball 232 to rotate. During the rotation of the valve ball 232, the drain pipe 25 and the discharge pipe 26 are not connected. After being centrifuged, wastewater separates paper, plastics, and other materials from the liquid. The valve ball 232 rotates, connecting the regulating pipe 22 to the drain pipe 25. The bottom layer of liquid flows sequentially through the regulating pipe 22 and the regulating tank 2321 into the drain pipe 25, thus entering the purification tank for further purification. Once the liquid reaches a suitable level after a period of time, the valve ball 232 rotates again, connecting the regulating pipe 22 to the discharge pipe 26. The upper layer of floating matter, along with some water, flows sequentially through the regulating pipe 22 and the regulating tank 2321 into the discharge pipe 26, thus entering the digestion tank for separate treatment of the paper and plastic materials.
[0048] Reference Figure 2 and Figure 3Furthermore, the processing box 2 is also equipped with a vacuum assembly 5. The vacuum assembly 5 includes a vacuum cylinder 51, a piston 52, and a third driving component 53. One end of the vacuum cylinder 51 is connected to the discharge pipe 26 through a vacuum pipe 511, and the other end is slidably connected to the piston 52 inside the cylinder. A gas valve 512 is provided on the vacuum pipe 511. The gas valve 512 is used to control the unidirectional passage of gas when the vacuum cylinder 51 is vacuuming, and to release gas after the vacuum cylinder 51 has finished working. In this embodiment, an electronic gas valve 512 is used, which is prior art and will not be described in detail. The third driving component 53 is a telescopic cylinder. The third driving component 53 drives the piston 52 to move. A third solenoid valve 261 is provided at the end of the discharge pipe 26 away from the second solenoid valve 23. When the discharge pipe 26 is not connected to the regulating pipe 22, one end of the discharge pipe 26 is blocked by the valve ball 232, and the other end is blocked by the third solenoid valve 261, forming a sealed space inside the discharge pipe 26. The third driving component 53 controls the piston 52 to move, thereby causing the air pump 51 to draw air from the discharge pipe 26 through the air pump pipe 511, so that a negative pressure space is formed inside the discharge pipe 26. When the valve ball 232 rotates to connect the regulating pipe 22 with the discharge pipe 26, the mixture of paper, plastic and other materials under negative pressure is quickly sucked into the discharge pipe 26 to prevent the paper, plastic and other materials from adhering to or blocking the regulating pipe 22, so that the mixture falls more smoothly. After the valve ball 232 rotates to connect the discharge pipe 26 and the regulating pipe 22, the third solenoid valve 261 opens, allowing the paper, plastic and other materials to enter the processing box 2.
[0049] Sewage pipe 21, regulating pipe 22, discharge pipe 26, and drain pipe 25 are all fixed to the inner wall of the treatment tank 2 by clamps. It is worth noting that, in this embodiment, except for the first connecting pipe 33 and the second connecting pipe 34, all other pipe fittings or tank connections can be equipped with one-way valves or pumps to facilitate water flow, thereby making the water flow smoother. This method is prior art known to those skilled in the art and will not be elaborated upon in this embodiment.
[0050] Reference Figure 2Furthermore, the purification tank assembly includes a bioflocculation tank 61, a sedimentation tank 63, and a disinfection tank 64 connected in series. The drain pipe 25 is connected to the bioflocculation tank 61 via a pump. The bioflocculation tank 61 contains a bioflocculating agent, which is an aerobic bacterial community. During the wastewater purification process, the aerobic bacteria exist in the form of activated sludge and biofilm. The equipment box 8 is equipped with an aeration device that supplies oxygen to the bioflocculation tank 61; this aeration device is existing technology and will not be described in detail. Under aerobic conditions, microorganisms adsorb organic matter from the environment and oxidize and decompose it into inorganic matter, thus purifying the wastewater. Simultaneously, they synthesize cellular material. Under conditions where free oxygen is present, aerobic microorganisms degrade organic matter, resulting in a faster reaction rate and shorter wastewater retention time. Therefore, this effectively reduces the volume of the structure, making the equipment smaller, and reducing the odor emitted during treatment. It also ensures complete decomposition of degradable organic matter. The aeration device provides oxygen and agitates the water through vibration during air supply, making the wastewater reaction more complete.
[0051] Reference Figure 2 The upper part of the sedimentation tank is connected to the upper part of the biological flocculation box 61. The supernatant from the biodegradation tank is taken to the sedimentation tank for sedimentation, thereby reducing the amount of pollutants and microorganisms entering the disinfection box 64.
[0052] Reference Figure 2 An oxidant is added to the disinfection tank 64 to treat the water body harmlessly through an oxidation-reduction reaction. The disinfection tank 64 is equipped with an outlet pipe 641. In the purification tank group, the bottom liquid is treated sequentially through the biological flocculation tank 61, the sedimentation tank 63, and the disinfection tank 64 to produce water that meets the water quality discharge standards before being discharged into the natural environment. In the biological flocculation tank 61, the liquid is treated with a biological flocculant, where a large number of effective microorganisms decompose organic pollutants in the liquid and form flocculated solid matter. After reaching a suitable water quality, the upper layer of liquid is taken and enters the subsequent sedimentation tank 63, where the treated water settles. The upper layer of water is then taken into the disinfection tank 64 for detoxification treatment before being discharged.
[0053] Reference Figure 2 Furthermore, the bioflocculation box 61 is equipped with a stirring mechanism, which includes a first rotating shaft 621, several support rods 622 and a stirring motor 623. The several support rods 622 are circumferentially arrayed and connected to the first rotating shaft 621. The support rods 622 extend in a direction away from the first rotating shaft 621. The stirring motor 623 drives the first rotating shaft 621 to rotate. The first rotating shaft 621 is rotatably connected to the bioflocculation box 61.
[0054] Reference Figure 2Furthermore, the digestion tank assembly includes a crushing tank 71, a dissolving tank 73, a neutralizing tank 74, and a regulating tank 75 connected in series. The crushing tank 71 is equipped with a crushing mechanism 72. An acidic solvent is added to the dissolving tank 73, and an alkaline neutralizing agent is added to the neutralizing tank 74. The regulating tank 75 is connected to a discharge pipe 752 at its end, and a filter element 751 is installed in the regulating tank 75 at the discharge pipe 752. In the digestion tank assembly, paper, plastic, and other materials mixed with liquid are sequentially processed through crushing tank 71, dissolving tank 73, neutralizing tank 74, and regulating tank 75 to produce water that meets the water quality discharge standards and is then discharged into the natural environment. Specifically, paper and plastic are crushed by crushing mechanism 72 in crushing tank 71, forming a suspension of fine particles floating in the liquid. This suspension then enters dissolving tank 73 to dissolve the paper particles, and then passes through neutralizing tank 74 to neutralize the mixture in dissolving tank 73, during which bacteria are eliminated. Finally, the upper layer of liquid is collected in regulating tank 75, and once the water quality is suitable, it is filtered and discharged. The plastic remains in regulating tank 75, to be removed along with flocculants during subsequent equipment maintenance.
[0055] Reference Figure 2 Furthermore, the crushing mechanism 72 includes a second rotating shaft 721, a plurality of blades 722 and a crushing motor 723. The plurality of blades 722 are circumferentially arrayed and connected to the second rotating shaft 721. The blades 722 extend in a direction away from the second rotating shaft 721. The crushing motor 723 drives the second rotating shaft 721 to rotate. The second rotating shaft 721 is rotatably connected to the crushing box 71.
[0056] The implementation principle of the integrated sewage treatment equipment in this application embodiment is as follows:
[0057] Wastewater discharged from public toilet 1 is pumped to centrifuge chamber 3 via sewage pipe 21 and a lift pump. Drive assembly 4 drives centrifuge chamber 3 to rotate. This rotation centrifuges the solid-liquid mixture within the chamber, causing substances with lower densities, such as paper and plastic, to float on top of the liquid. This separates the liquid from the potentially clogged paper and plastic substances. Through drain pipe 25 and a second solenoid valve 23, the bottom liquid is first discharged into the purification tank via drain pipe 25, while the paper and plastic substances are discharged into the digestion tank via discharge pipe 26. This separation increases processing efficiency and prevents pipe blockage.
[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An integrated wastewater treatment equipment, characterized in that: It includes a processing box (2) and an equipment box (8). The processing box (2) is equipped with: A sewage pipe (21) is used to transfer sewage, and a first solenoid valve (212) is provided on the sewage pipe (21). Centrifuge chamber (3) is rotatably connected to the treatment box (2). The treatment box (2) is provided with a drive assembly (4) for driving the centrifuge chamber (3) to rotate. A first connecting pipe (33) is provided on the top of the centrifuge chamber (3) along the axis. The sewage pipe (21) is fixedly connected to the treatment box (2). The first connecting pipe (33) is rotatably connected to the sewage pipe (21). A second connecting pipe (34) is provided on the bottom of the centrifuge chamber (3) along the axis. An regulating pipe (22) is fixedly connected to the treatment box (2). The second connecting pipe (34) is rotatably connected to the regulating pipe (22). A second solenoid valve (23) is provided on the regulating pipe (22). The second solenoid valve (23) is a three-way valve. The purification chamber is used to purify the bottom liquid after centrifugation and is connected to the second solenoid valve (23) through the drain pipe (25). The digestion chamber assembly is used to decompose the floating matter on the upper layer after centrifugation, and is connected to the second solenoid valve (23) through the discharge pipe (26). The equipment box (8) is equipped with a booster pump for pumping sewage into the sewage pipe (21); The second solenoid valve (23) includes a housing (231), a valve ball (232), and a second drive member (233). The housing (231) contains an adjustment chamber (2311) for the valve ball (232) to rotate. The adjustment pipe (22), the drain pipe (25), and the discharge pipe (26) are all connected to the housing (231) at intervals and communicate with the adjustment chamber (2311). The outer wall of the valve ball (232) is provided with three interconnected adjustment slots (2321) at intervals. When the valve ball (232) rotates, it can first connect the adjustment pipe (22) and the drain pipe (25) and then connect the adjustment pipe (22) and the discharge pipe (26). The second drive member (233) drives the valve ball (232) to rotate. The processing box (2) is also equipped with an air extraction assembly (5). The air extraction assembly (5) includes an air extraction cylinder (51), a piston (52) and a third driving member (53). One end of the air extraction cylinder (51) is connected to the discharge pipe (26) through an air extraction pipe (511), and the other end is slidably connected to the piston (52) inside the cylinder. An air valve (512) is provided on the air extraction pipe (511). The third driving member (53) drives the piston (52) to move. A third solenoid valve (261) is provided at the end of the discharge pipe (26) away from the second solenoid valve (23).
2. The integrated sewage treatment equipment according to claim 1, characterized in that: The first connecting pipe (33) is provided with a first connecting ring (331) circumferentially at one end away from the centrifuge chamber (3), and the sewage pipe (21) is provided with a first connecting groove (211) on the inner wall of one end close to the first connecting pipe (33) for the first connecting ring (331) to rotate. The second connecting pipe (34) is provided with a second connecting ring (341) circumferentially at one end away from the centrifuge chamber (3), and the drain pipe (25) is provided with a second connecting groove (221) on the inner wall of one end near the second connecting pipe (34) for the second connecting ring (341) to rotate.
3. The integrated sewage treatment equipment according to claim 1, characterized in that: The processing box (2) also includes at least one support ring (24). The support ring (24) includes a rotating ring (241), a fixed ring (242), and a number of rolling balls (243). The rotating ring (241) is circumferentially connected to the centrifuge chamber (3). The fixed ring (242) is connected to the frame at the position corresponding to the rotating ring (241). The rotating ring (241) and the fixed ring (242) are circumferentially arrayed with a number of hemispherical grooves (2411) on the side that are close to each other. A number of rolling balls (243) are correspondingly arranged in the grooves (2411).
4. The integrated sewage treatment equipment according to claim 1, characterized in that: The drive assembly (4) includes a drive ring (41) and a first drive member (42). The drive ring (41) is coaxially disposed at one end of the centrifuge chamber (3). The outer wall of the drive ring (41) is provided with teeth (411). The output end of the first drive member (42) is provided with a drive gear (421). The drive gear (421) meshes with the drive ring (41).
5. The integrated sewage treatment equipment according to claim 1, characterized in that: The purification tank group includes a bioflocculation tank (61), a sedimentation tank (63) and a disinfection tank (64) connected in series. The bioflocculation tank (61) contains a bioflocculating agent. The drain pipe (25) is connected to the bioflocculation tank (61). The disinfection tank (64) contains an oxidizing agent. The disinfection tank (64) is equipped with an outlet pipe (641).
6. The integrated sewage treatment equipment according to claim 5, characterized in that: The bioflocculation box (61) is equipped with a stirring mechanism, which includes a first rotating shaft (621), a plurality of support rods (622) and a stirring motor (623). The plurality of support rods (622) are circumferentially arrayed and connected to the first rotating shaft (621). The support rods (622) extend away from the first rotating shaft (621). The stirring motor (623) drives the first rotating shaft (621) to rotate. The first rotating shaft (621) is rotatably connected inside the bioflocculation box (61).
7. The integrated sewage treatment equipment according to claim 1, characterized in that: The digestion tank assembly includes a crushing tank (71), a dissolving tank (73), a neutralizing tank (74), and a regulating tank (75) connected in series. The crushing tank (71) is equipped with a crushing mechanism (72). An acidic solvent is placed in the dissolving tank (73). An alkaline neutralizing agent is placed in the neutralizing tank (74). The regulating tank (75) is connected to a discharge pipe (752) at its end. A filter element (751) is installed in the regulating tank (75) at the discharge pipe (752).
8. The integrated sewage treatment equipment according to claim 7, characterized in that: The crushing mechanism (72) includes a second rotating shaft (721), a plurality of blades (722) and a crushing motor (723). The plurality of blades (722) are circumferentially arrayed and connected to the second rotating shaft (721). The blades (722) extend away from the second rotating shaft (721). The crushing motor (723) drives the second rotating shaft (721) to rotate. The second rotating shaft (721) is rotatably connected to the crushing box (71).
Citation Information
Patent Citations
Multi-stage centrifugal sewage treatment device
CN117088462A
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