A washing tower type wastewater treatment device

Abstract

This invention discloses a washing tower-type wastewater treatment device, relating to the technical field of domestic sewage treatment. The invention includes a treatment tower mounted on a support base, and further includes: an inlet assembly on the treatment tower, with a crushing component on the inlet assembly for crushing suspended solids in the wastewater; a treatment unit disposed inside the treatment tower, including a sedimentation assembly, a decomposition assembly, a transmission assembly, and an aeration assembly; and a filter assembly mounted on the support base. The advantages are: through the coordinated operation of the inlet assembly, sedimentation assembly, decomposition and transmission assembly, and aeration anti-clogging mechanism, this invention can break up impurities and prevent entanglement during the inlet stage, efficiently discharge sedimented impurities from the bottom of the tower, avoid packing material accumulation and caking, improve treatment efficiency, and also clean the aeration heads in real time to prevent pore blockage, ensuring stable and long-term operation of the equipment.

Description

Technical Field

[0001] This invention relates to the technical field of domestic sewage treatment, and more particularly to a scrubbing tower type wastewater treatment device. Background Technology

[0002] Washing tower wastewater treatment devices are core equipment in the field of wastewater treatment. They are widely used in the purification and treatment of domestic sewage and small and medium-sized industrial wastewater. Relying on the integrated tower structure, wastewater can be sprayed, filtered and purified simultaneously. With its small footprint, high integration and strong adaptability, it has become one of the mainstream equipment for decentralized wastewater treatment.

[0003] For example, a washing tower type wastewater treatment device with publication number CN207142865U has a structure including an outlet pipe, a nozzle device, a conveying pipe, a water collection rack, a motor support, a rotating shaft, a motor, fan blades, a shell, an inlet pipe, a stuffing box, an air inlet pipe, a tower foot, and a water collection pan. The outlet pipe is embedded in the bottom of the stuffing box. The nozzle device is welded perpendicularly to the conveying pipe. The outer edge of the motor is welded to the motor support. The bottom end of the rotating shaft is nested with the center of the fan blades. The water collection rack is set inside the shell. The inlet pipe is embedded in the front surface of the shell. The air inlet pipe is attached to the inner surface of the shell.

[0004] Existing treatment devices mostly use atomized spraying combined with fixed packing for wastewater treatment. In actual operation, there is no pre-treatment crushing structure for the influent. Hair and fibrous suspended solids in the wastewater are easy to entangle the internal components of the tower and clog the equipment, increasing operation and maintenance costs. There is no dedicated sedimentation and slag discharge component at the bottom of the tower. Sludge and other impurities are easy to accumulate and caking. Slag discharge can easily disturb the internal operating conditions of the tower and affect the stability of subsequent treatment.

[0005] For example, in the aforementioned prior art, the device only uses a nozzle device to atomize and spray wastewater, and then uses a fixed packing box to complete the filtration process. Its inlet end has no impurity breaking structure, so it cannot prevent hair-like impurities from entangled and clogging at the source. It also lacks a dedicated sedimentation and slag discharge component, so it cannot achieve a closed and stable discharge of sedimented impurities from the bottom of the tower. Furthermore, the packing box is a fixed structure without a stirring or agitation mechanism, which easily leads to problems such as packing caking and pore blockage.

[0006] Therefore, there is an urgent need to design a washing tower-type wastewater treatment device to solve the above problems. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a washing tower-type wastewater treatment device, which solves the problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a washing tower type wastewater treatment device, comprising a treatment tower mounted on a support base, and further comprising: The treatment tower is equipped with an inlet water assembly, which is equipped with a crushing component for crushing suspended solids in the wastewater. The processing unit, located inside the processing tower, includes a sedimentation component, a decomposition component, a transmission component, and an aeration component; The sedimentation component is equipped with two spiral extrusion rods for conveying and extruding sedimented impurities; the decomposition component is equipped with several packing tanks for storing bacteria; and the aeration component is equipped with aeration heads for aeration. A filter assembly is provided on the support base, and an inclined filter plate for filtering suspended solids is provided on the filter assembly.

[0009] Preferably, a controller is fixedly installed on the support base, a PLC controller is fixedly connected to the controller, a control panel is fixedly connected to the PLC controller, and the control panel and the PLC controller are electrically connected. The control panel controls the start / stop and operation status of the water inlet assembly, treatment unit, and filtration assembly via a PLC controller.

[0010] Preferably, the water inlet assembly includes an air pump fixedly installed on a support base, an inlet pipe fixedly connected to the treatment tower, a crushing component rotatably connected inside the inlet pipe, a power chamber fixedly installed on the inlet pipe, a closed impeller rotatably connected inside the power chamber, the crushing component and the closed impeller being fixedly connected, and the air outlet of the air pump being fixedly connected to the power chamber.

[0011] Preferably, the precipitation assembly includes an extrusion chamber disposed at the bottom of the processing tower, a first sealing chamber fixedly installed on the extrusion chamber, two spiral extrusion rods rotatably connected to the first sealing chamber, and a first transmission rod rotatably connected inside the first sealing chamber; Both discharge ports of the extrusion chamber are slidably connected to sealing plugs, and several spring telescopic rods are fixedly installed between the two sealing plugs and the extrusion chamber. A power mechanism is installed at the bottom of the processing tower.

[0012] Preferably, the power mechanism includes a rotating motor fixedly installed at the bottom of the processing tower, and the driving end of the rotating motor is fixedly connected to the first transmission rod; A first one-way bearing is fixedly installed on the first transmission rod, and a first helical gear is fixedly installed on the first one-way bearing. A second helical gear that meshes with the first helical gear is fixedly installed on both of the spiral extrusion rods and inside the first sealing chamber.

[0013] Preferably, the decomposition component includes a spiral stirring rod rotatably connected inside each packing tank. Each spiral stirring rod is provided with a disturbance rod, which is used to disturb the water and biological packing inside the packing tank to prevent the packing from accumulating and compacting or the pores from becoming blocked. The packing tank is provided with a plurality of first filter holes, which are used to introduce wastewater into the packing tank and prevent impurities from entering the packing tank.

[0014] Preferably, the transmission assembly includes a second sealed chamber fixedly installed inside the processing tower, a second one-way bearing fixedly installed at one end of the first transmission rod passing through the first sealed chamber, a second transmission rod fixedly installed on the second one-way bearing, and a spiral scraper fixedly installed on the second transmission rod. A third helical gear is fixedly installed on the second transmission rod and inside the second sealing chamber. Several rotating frames are fixedly installed on the second sealing chamber. A third transmission rod is rotatably connected to each of the rotating frames. A fourth helical gear that meshes with the third helical gear is rotatably connected to one end of each of the third transmission rods. Several fourth transmission rods are rotatably connected to the second sealing chamber. A sixth helical gear is fixedly installed at one end of each fourth transmission rod, and a fifth helical gear that meshes with the sixth helical gear is fixedly installed at one end of each third transmission rod. One end of each fourth transmission rod is fixedly connected to the end of the spiral stirring rod.

[0015] Preferably, the aeration assembly includes an attachment plate disposed inside the treatment tower, an aeration pipe disposed inside the treatment tower, each aeration head being fixedly connected to the aeration pipe, and an air supply pipe being fixedly connected to the air outlet of the power chamber, the air supply pipe being fixedly connected to the aeration pipe. The aeration head is equipped with an anti-clogging mechanism.

[0016] Preferably, the anti-clogging mechanism includes a connecting frame fixedly installed on each aeration head, a blade impeller component rotatably connected to the connecting frame, and a scraper fixedly installed at the end of the blade impeller component. The scraper can rotate synchronously with the blade impeller component to scrape off the sludge, biofilm and impurities attached to the surface of the aeration head, and prevent the air holes on the aeration head from becoming clogged.

[0017] Preferably, the filtration assembly includes a filtration chamber fixedly installed on a support base, a return pipe is provided on the treatment tower, a water quality monitor for detecting the concentration of nitrified liquid in the wastewater is provided on the return pipe, a booster pump is provided on the return pipe, and a three-way solenoid valve is provided on the return pipe. The three-way solenoid valve is connected to the filtration chamber through a drain pipe. The inclined filter plate is fixedly installed in the filter chamber, and an activated carbon plate is fixedly installed inside the filter chamber.

[0018] This invention provides a washing tower-type wastewater treatment device. It has the following beneficial effects: 1. When treating wastewater, this treatment device can simultaneously break up suspended solids, hair and fibrous impurities in the wastewater during the water intake stage through the crushing components on the water intake assembly. This prevents flexible impurities such as long hair from entering the tower body and entangled in the stirring components, packing and transmission structure, thereby reducing the risk of equipment blockage from the source, reducing the frequency of maintenance and blockage clearing, and ensuring continuous and stable operation of the equipment.

[0019] 2. When treating wastewater, this treatment device uses the spiral extrusion rod of the sedimentation component to concentrate, transport, and dewater the sludge and high-density impurities settled at the bottom of the tower. Combined with the sealing structure of the discharge port, it achieves closed slag discharge, avoids the accumulation and caking of sediment impurities, and prevents fluctuations in the tower's operating conditions during slag discharge, ensuring a stable biochemical reaction environment and improving solid-liquid separation efficiency.

[0020] 3. When treating wastewater, this treatment device uses the transmission component to link the spiral stirring rod and the disturbance rod of the decomposition component to continuously and uniformly disturb the biological packing material in the packing tank, avoiding packing material accumulation and compaction and pore blockage. During the disturbance process, the wastewater can also make more sufficient contact with the biofilm, improve the efficiency of hydrolysis acidification, denitrification and phosphorus removal biochemical reactions, and stabilize the wastewater treatment effect.

[0021] 4. When treating wastewater, this treatment device uses the anti-clogging mechanism of the aeration head to drive the blade impeller to rotate synchronously with the aeration airflow, which cleans the surface of the aeration head and the air holes in real time, continuously scraping off the attached sludge, biofilm and suspended solids, avoiding the clogging of the air holes from the source and ensuring stable aeration and oxygenation efficiency.

[0022] In summary, this invention, through the coordinated operation of the inlet component, sedimentation component, decomposition and transmission component, and aeration anti-clogging mechanism, can break up impurities and prevent entanglement during the water inlet stage, efficiently discharge impurities settled at the bottom of the tower, avoid packing material accumulation and caking, improve treatment efficiency, and also clean the aeration heads in real time to prevent pore blockage, ensuring stable and long-term operation of the equipment.

[0023] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0024] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a washing tower type wastewater treatment device proposed in this invention; Figure 2 for Figure 1 A schematic diagram of the structure after rotation at a certain angle; Figure 3 for Figure 1 A schematic diagram of the structure with the support base removed; Figure 4 for Figure 3 Schematic diagram of the internal structure of the processing tower; Figure 5 for Figure 4 Schematic diagram of the central water inlet assembly; Figure 6 for Figure 5 Enlarged view of the node at point A in the middle; Figure 7 for Figure 4 Schematic diagram of the structure of the intermediate packing tank; Figure 8 for Figure 7 Schematic diagram of the internal structure of the second sealing chamber; Figure 9 for Figure 7 Schematic diagram of the internal structure of the filling tank; Figure 10 for Figure 4 Schematic diagram of the aeration pipe; Figure 11 for Figure 10 Schematic diagram of the structure of the intermediate aeration component; Figure 12 for Figure 11 Enlarged view of the nodes in section B; Figure 13 for Figure 10 A schematic diagram of the structure of the filter component.

[0025] In the diagram: 1. Support base; 2. Processing tower; 3. Inlet pipe; 4. Power chamber; 5. Air pump; 6. Enclosed impeller; 7. Crushing component; 8. Extrusion chamber; 9. Rotary motor; 10. First sealing chamber; 11. First transmission rod; 12. Spiral extrusion rod; 13. First one-way bearing; 14. First helical gear; 15. Second helical gear; 16. Sealing plug; 17. Spring telescopic rod; 18. Second one-way bearing; 19. Second transmission rod; 20. Spiral scraper; 21. Packing tank; 22. First filter hole; 23. Spiral stirring rod; 24. Second sealing chamber; 25. Third helical gear; 26. Third transmission rod; 27. Fourth helical gear; 28. Fifth helical gear; 29. ​​Fourth transmission rod; 30. Sixth helical gear; 31. Air supply pipe; 32. Aeration pipe; 33. Attachment plate; 34. Aeration head; 35. Connecting frame; 36. Blade impeller; 37. Scraper; 38. Return pipe; 39. Booster pump; 40. Water quality monitor; 41. Three-way solenoid valve; 42. Drain pipe; 43. Filter chamber; 44. Inclined filter plate; 45. Activated carbon plate; 46. Controller. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example 1: Refer to Figures 1-4 A washing tower type wastewater treatment device includes a treatment tower 2 installed on a support base 1; Treatment tower 2 is used to provide a closed and stable reaction space for the whole process of wastewater treatment. It can provide a closed reaction space for the whole process of wastewater from solid-liquid sedimentation and separation, biochemical denitrification and phosphorus removal to aeration and oxygenation, realize continuous integrated treatment of wastewater in a single tower, significantly reduce the equipment footprint, and adapt to the linkage operation of various functional components in the tower, thereby reducing the risk of failures such as blockage and caking from a structural perspective. This processing device also includes: The treatment tower 2 is equipped with a water inlet assembly, and the water inlet assembly is equipped with a crusher 7, which is used to crush suspended solids in the wastewater. The inlet assembly is used to stably introduce the wastewater to be treated into the treatment tower 2. The crushing component 7 installed on it simultaneously breaks up the suspended solids in the wastewater during the wastewater transportation process, preventing the suspended solids from entering the tower body and causing blockage or entanglement of internal components, thus providing a guarantee for the stable operation of subsequent treatment processes. The processing unit, located inside the processing tower 2, includes a sedimentation component, a decomposition component, a transmission component, and an aeration component; The sedimentation assembly is equipped with two spiral extrusion rods 12 for conveying and squeezing the sedimented impurities. The sedimentation assembly is used to centrally convey and squeeze the impurities settled at the bottom of the treatment tower 2, so as to achieve effective separation of sludge, high-density sedimented impurities and water in wastewater, avoid the accumulation and caking of sedimented impurities affecting the subsequent treatment effect, and at the same time complete the centralized discharge of sedimented impurities, ensuring the cleanliness of the treatment space inside the tower and the stability of the treatment conditions. The decomposition component is equipped with several packing tanks 21 for storing bacteria. The decomposition component can provide a stable attachment and growth space for the functional bacteria required for wastewater treatment. Through the biochemical action of the bacteria, the decomposition of pollutants in the wastewater, nitrogen removal and phosphorus removal are achieved. It is the core reaction unit of the whole device to achieve the degradation of organic pollutants and water purification, and provides core support for wastewater treatment to meet standards. The transmission assembly is used to stably transmit power to the decomposition assembly, drive the relevant functional components of the decomposition assembly to operate, ensure that the wastewater in the decomposition assembly is in full contact with the bacteria and packing in the packing tank 21, and avoid packing accumulation and compaction.

[0028] The aeration components are equipped with aeration heads 34 for aeration. The aeration components can introduce oxygen into the water in the treatment tower 2, providing sufficient dissolved oxygen for the growth and metabolism of aerobic functional bacteria, ensuring the smooth progress of core biochemical processes such as nitrification. At the same time, the aeration disturbance enhances the contact effect between the water and the bacteria, further improving the efficiency and effect of wastewater biochemical treatment. A filter assembly is installed on the support base 1. The filter assembly is equipped with an inclined filter plate 44 for filtering suspended solids. The filter assembly is used to intercept residual suspended solids and solid impurities in the water, further improving the quality of the effluent and ensuring that the treated wastewater meets the discharge standards.

[0029] A controller 46 is fixedly installed on the support base 1. A PLC controller is fixedly connected to the controller 46. A control panel is fixedly connected to the PLC controller. The control panel and the PLC controller are electrically connected. The control panel controls the start / stop and operating status of the water inlet assembly, treatment unit, and filtration assembly via a PLC controller.

[0030] Example 2: Refer to Figures 4-6 The technical difference between this embodiment and embodiment one is that: the water inlet component includes an air pump 5 fixedly installed on the support base 1, the air pump 5 is used to supply air to the aeration component, and a water inlet pipe 3 is fixedly connected to the treatment tower 2, the water inlet pipe 3 is used to send the wastewater to be treated into the treatment tower 2, and to provide installation space for the crushing component 7, the crushing component 7 is rotatably connected in the water inlet pipe 3, the crushing component 7 is used to simultaneously crush suspended solids, hair and fibrous impurities in the wastewater during the water inlet stage when the wastewater enters the treatment tower 2, from the source to prevent flexible impurities such as long hair from entering the tower body and wrapping around the stirring components, packing and transmission structure, greatly reducing the risk of equipment blockage, reducing the frequency of subsequent maintenance and blockage clearing, and ensuring continuous and stable operation of the equipment; A power chamber 4 is fixedly installed on the water inlet pipe 3. A closed impeller 6 is rotatably connected inside the power chamber 4. The crushing part 7 is fixedly connected to the closed impeller 6. The air outlet of the air pump 5 is fixedly connected to the power chamber 4. The power chamber 4 provides a sealed rotating installation environment for the enclosed impeller 6, receives the high-pressure airflow from the air pump 5, and forms a stable power chamber. The enclosed impeller 6 is driven to rotate by the high-pressure airflow delivered by the air pump 5, which in turn drives the crushing parts 7 to rotate synchronously, providing crushing power for the crushing parts 7.

[0031] In a further embodiment, the sedimentation assembly includes a squeezing chamber 8 disposed at the bottom of the treatment tower 2. The squeezing chamber 8 is used to collect sludge and high-density solid impurities precipitated in the wastewater after water inlet, and provides a closed space for squeezing and conveying the impurities. A first sealing chamber 10 is fixedly installed on the squeezing chamber 8. The first sealing chamber 10 is used to provide sealing protection for the internal transmission structure, isolate wastewater and sludge, prevent wastewater and sludge from entering the transmission chamber and causing parts to rust or jam, and extend the service life of the equipment. Both spiral extrusion rods 12 are rotatably connected to the first sealing chamber 10. The first transmission rod 11 is rotatably connected inside the first sealing chamber 10. The spiral extrusion rods 12 are used to transport the sludge and high-density impurities settled in the extrusion chamber 8 towards the discharge port by rotating themselves. At the same time, the sludge is extruded and dewatered during the transportation process to reduce the volume of the sludge, which facilitates the subsequent sludge disposal, avoids the accumulation and caking of settled impurities at the bottom of the tower, and ensures sufficient processing space in the tower. The first transmission rod 11 is used to transmit power to the slag discharge and the stirring in the decomposition component. Both discharge ports of the extrusion chamber 8 are slidably connected with sealing plugs 16. Several spring telescopic rods 17 are fixedly installed between the two sealing plugs 16 and the extrusion chamber 8. The sealing plugs 16 are used to block the discharge ports when not discharging slag, so as to achieve the airtight sealing of the extrusion chamber 8, prevent the wastewater in the tower from leaking out directly without treatment, and at the same time prevent outside air from entering the tower during the slag discharge process, causing fluctuations in the anaerobic and anoxic biochemical reaction environment, and ensuring the stability of biochemical treatment. The spring telescopic rod 17 is used to provide pre-tightening force to the sealing plug 16, so that when the pressure in the extrusion chamber 8 increases during the sludge conveying process of the screw extrusion rod 12, the sealing plug 16 is automatically stretched and opened to discharge sludge. After the sludge is discharged, the sealing plug is automatically reset and plugged. No additional control valves are required, which simplifies the structure and realizes fully automatic closed sludge discharge. In a further embodiment, a power mechanism is provided at the bottom of the processing tower 2. The power mechanism includes a rotating motor 9 fixedly installed at the bottom of the processing tower 2. The driving end of the rotating motor 9 is fixedly connected to the first transmission rod 11. The rotating motor 9 serves as the core power source of the entire device, providing driving force for the slag discharge and stirring structure. A first one-way bearing 13 is fixedly installed on the first transmission rod 11, and a first helical gear 14 is fixedly installed on the first one-way bearing 13. A second helical gear 15 that meshes with the first helical gear 14 is fixedly installed on both spiral extrusion rods 12 and inside the first sealing chamber 10. The unidirectional transmission of power is achieved through the cooperation between the first one-way bearing 13, the first helical gear 14 and the second helical gear 15. When the rotating motor 9 rotates forward, the first one-way bearing 13 is locked, driving the spiral extrusion rod 12 to rotate to achieve slag discharge. When the rotating motor 9 rotates in reverse, the first one-way bearing 13 rotates idly, and the spiral extrusion rod 12 remains stationary, thereby achieving the separation of power for slag discharge and stirring operations.

[0032] Example 3: Refer to Figures 7-13 The difference between this embodiment and embodiment two lies in the following technical solution: the decomposition component includes a spiral stirring rod 23 rotatably connected inside each packing tank 21. The packing tank 21 is used to store biological packing material, providing a stable attachment and growth space for wastewater treatment functional bacteria such as denitrifying bacteria, nitrifying bacteria, and polyphosphate-accumulating bacteria, forming a stable biofilm system. Each spiral stirring rod 23 is equipped with a disturbance rod. The disturbance rod is used to disturb the water and biological packing inside the packing tank 21 to prevent the packing from accumulating and compacting and the pores from being blocked. During the disturbance process, the convective contact between the wastewater and the biofilm is enhanced, which greatly improves the efficiency of the biochemical reaction of hydrolysis acidification, denitrification and phosphorus removal, and stabilizes the wastewater treatment effect. The packing tank 21 is provided with a number of first filter holes 22. The first filter holes 22 are used to introduce wastewater into the packing tank 21 and prevent impurities from entering the packing tank 21, thereby avoiding impurities from clogging the packing pores, protecting the packing and biofilm system, and extending the service life of the packing.

[0033] In a further embodiment, the transmission assembly includes a second sealed chamber 24 fixedly installed inside the processing tower 2. The second sealed chamber 24 is used to provide sealing protection for the internal gear transmission structure. One end of the first transmission rod 11 passes through the first sealed chamber 10 and is fixedly installed with a second one-way bearing 18. A second transmission rod 19 is fixedly installed on the second one-way bearing 18. A spiral scraper 20 is fixedly installed on the second transmission rod 19. The spiral scraper 20 is used to scrape off the sludge and impurities attached to the inner wall of the tower, so as to prevent impurities from accumulating on the tower wall and breeding anaerobic bacteria, and to ensure the stability of the processing environment inside the tower. The second one-way bearing 18 and the first one-way bearing 13 form a reverse power transmission. When the rotating motor 9 rotates in reverse, the second one-way bearing 18 locks and drives the second transmission rod 19 to rotate synchronously, providing driving force for the stirring structure. When the rotating motor 9 rotates in the forward direction, the second one-way bearing 18 rotates freely, and the second transmission rod 19 remains stationary. A third helical gear 25 is fixedly installed on the second transmission rod 19 and inside the second sealing chamber 24. Several rotating frames are fixedly installed on the second sealing chamber 24. A third transmission rod 26 is rotatably connected to each rotating frame. A fourth helical gear 27 that meshes with the third helical gear 25 is rotatably connected to one end of each third transmission rod 26. Several fourth transmission rods 29 are rotatably connected to the second sealing chamber 24. A sixth helical gear 30 is fixedly installed at one end of each fourth transmission rod 29. A fifth helical gear 28 that meshes with the sixth helical gear 30 is fixedly installed at one end of each third transmission rod 26. One end of each fourth transmission rod 29 is fixedly connected to the end of the spiral stirring rod 23.

[0034] The third helical gear 25, the third transmission rod 26 and the fourth helical gear 27 work together to transmit power. The third helical gear 25 rotates with the second transmission rod 19 and meshes with the fourth helical gear 27 to change direction, transmitting power to the third transmission rod 26, realizing the diversion and reversal of power transmission, and can synchronously drive multiple fourth transmission rods 29 to rotate smoothly. The sixth helical gear 30, the fourth transmission rod 29, and the fifth helical gear 28 work together to achieve power reversal transmission. The fifth helical gear 28 meshes with the sixth helical gear 30 to reverse the direction, smoothly transmitting the power of the third transmission rod 26 to the fourth transmission rod 29. The fourth transmission rod 29 then transmits the power to the spiral stirring rod 23, achieving precise power reversal and transmission. This ensures the stable operation of the spiral stirring rod 23, continuously agitating the packing in the packing tank 21, preventing packing compaction and blockage, and improving the biochemical treatment effect of wastewater.

[0035] In a further embodiment, the aeration assembly includes an attachment plate 33 disposed inside the treatment tower 2. The attachment plate 33 is used to provide a stable attachment and growth surface for aerobic microorganisms and nitrifying bacteria. In an aerobic environment, the bacteria decompose the remaining organic matter in the wastewater into carbon dioxide and water, and oxidize ammonia nitrogen into nitrate nitrogen. The treatment tower 2 is equipped with an aeration pipe 32 as a distribution channel for aeration airflow, which evenly distributes the high-pressure airflow to each aeration head 34. Each aeration head 34 is fixedly connected to the aeration pipe 32. The aeration head 34 is used to break the high-pressure airflow into microbubbles and release them evenly into the wastewater in the tower. The effect is to significantly increase the gas-liquid contact area, improve oxygen dissolution efficiency, and provide sufficient dissolved oxygen for aerobic nitrifying bacteria. The outlet of the power chamber 4 is fixedly connected to the gas supply pipe 31, which is fixedly connected to the aeration pipe 32. In a further embodiment, an anti-clogging mechanism is provided on the aeration head 34. The anti-clogging mechanism includes a connecting frame 35 fixedly installed on each aeration head 34. A blade impeller 36 is rotatably connected to the connecting frame 35. A scraper 37 is fixedly installed at the end of the blade impeller 36. The connecting frame 35 is used to provide stable rotation support for the blade impeller 36. The blade impeller 36 is driven to rotate by the high-pressure airflow sprayed from the aeration head 34. The effect is that no additional drive components are needed to achieve self-driven operation without additional energy consumption. The scraper 37 can rotate synchronously with the blade impeller 36 to scrape off the sludge, biofilm and impurities attached to the surface of the aeration head 34 and prevent the air holes of the aeration head 34 from being blocked.

[0036] In a further embodiment, the filtration assembly includes a filter chamber 43 fixedly installed on the support base 1, a return pipe 38 is provided on the treatment tower 2, the return pipe 38 is used to export the wastewater that has completed biochemical treatment in the tower, a water quality monitor 40 for detecting the concentration of nitrified liquid in the wastewater is provided on the return pipe 38, and a booster pump 39 is provided on the return pipe 38, the booster pump 39 is used to provide booster power for the delivery and return of the effluent, and ensure stable water flow delivery; A three-way solenoid valve 41 is installed on the return pipe 38. The three-way solenoid valve 41 is connected to the filter chamber 43 through the drain pipe 42. The three-way solenoid valve 41 switches the water flow path according to the detection data of the water quality monitor 40. When the effluent does not meet the standard, the wastewater is sent back to the bottom of the treatment tower 2. When the effluent meets the standard, the wastewater is sent into the filter chamber 43 for filtration. The water quality monitor 40 is used to detect the nitrate concentration in the reflux nitrification liquid in real time and accurately determine the degree of completion of the aerobic nitrification reaction in the tower. When the nitrate concentration is detected to reach the set threshold, a signal is sent to the controller 46 to control the three-way solenoid valve 41 to switch the flow path and return the qualified nitrification liquid to the treatment tower 2. Inclined filter plate 44 is fixedly installed inside filter chamber 43. The inclined filter plate 44 is arranged at an angle to intercept and filter solid impurities such as residual suspended solids and detached biofilm in wastewater. The inclined arrangement allows the intercepted impurities to slide down the plate surface to the bottom of filter chamber 43, avoiding clogging of the surface of the inclined filter plate 44, extending the filtration cycle and reducing the frequency of operation and maintenance. Activated carbon plate 45 is fixedly installed inside filter chamber 43. Activated carbon plate 45 is used to remove residual organic matter, color, odor and detergent residue in wastewater through physical adsorption.

[0037] The specific working principle of this processing device is as follows: When treating wastewater, the wastewater to be treated is transported through the inlet pipe 3. During the transportation process, the air pump 5 is started simultaneously. The air pump 5 outputs high-pressure airflow, which enters the power chamber 4 to drive the closed impeller 6 to rotate. This drives the crushing parts 7 in the inlet pipe 3 to rotate synchronously, thereby breaking up hair and fibrous suspended solids in the wastewater. This prevents flexible impurities from entering the treatment tower 2 and entangled in the internal components, causing equipment blockage. The pretreated wastewater enters the bottom of the treatment tower 2. After the wastewater enters the squeezing chamber 8, it undergoes initial gravity sedimentation. Sludge and high-density solid impurities settle to the bottom of the treatment tower 2, and the supernatant flows upward into the biochemical treatment zone. When the precipitated impurities accumulate to a set amount, the rotating motor 9 rotates forward, driving the first transmission rod 11 in the first sealing chamber 10 to rotate synchronously. The first one-way bearing 13 is locked. Through the meshing transmission of the first helical gear 14 and the second helical gear 15, the two spiral squeezing rods 12 are driven to rotate synchronously, conveying the precipitated sludge to the discharge port and squeezing and dewatering it. After the pressure in the squeezing chamber 8 increases, the sealing plug 16 is opened to complete the sealed slag discharge. After the slag discharge is completed, the spring telescopic rod 17 drives the sealing plug 16 to automatically reset and seal. When the rotating motor 9 reverses, the first one-way bearing 13 spins freely and the slag discharge structure stops operating. The first transmission rod 11 drives the second one-way bearing 18 to lock, and drives the second transmission rod 19 to rotate synchronously with the spiral scraper 20. The third helical gear 25 and the fourth helical gear 27 on the second transmission rod 19 mesh to transmit power to multiple third transmission rods 26. Then, through the reversing transmission of the fifth helical gear 28 and the sixth helical gear 30, the fourth transmission rod 29 drives all the spiral stirring rods 23 and disturbance rods in the filling tank 21 to rotate synchronously, continuously disturbing the biological packing in the tank to prevent the packing from accumulating and compacting and the pores from being blocked. Wastewater enters the tank through the first filter hole 22 of the packing tank 21, and comes into full contact with the denitrifying bacteria and polyphosphate-accumulating bacteria attached to the packing, completing the denitrification and biological phosphorus removal reaction to remove total nitrogen and organic pollutants from the wastewater. The high-pressure airflow output by the air pump 5 is delivered to the aeration pipe 32 through the air supply pipe 31. It is then broken into tiny bubbles by the aeration head 34 and released into the wastewater to fill the water with sufficient dissolved oxygen. The attachment plate 33 in the treatment tower 2 provides a stable attachment surface for aerobic nitrifying bacteria. In the oxygen-rich environment, the nitrifying bacteria oxidize the ammonia nitrogen in the wastewater into nitrate nitrogen, thus completing the aerobic nitrification reaction. During the aeration process, the airflow ejected from the aeration head 34 drives the blade impeller 36 to rotate synchronously with the scraper 37. The connecting frame 35 provides stable rotation support for the blade impeller 36. The scraper 37 cleans the surface and air holes of the aeration head 34 in real time, continuously scraping off the attached sludge and suspended matter, preventing air hole blockage from the source, and ensuring long-term stable aeration and oxygenation efficiency. The wastewater that has completed aerobic treatment enters the return pipe 38. The booster pump 39 provides stable boosting power for water transport. The water quality monitor 40 monitors the nitrate concentration in the water in real time. When the nitrate concentration reaches the set threshold, it sends a signal to the controller 46 to control the three-way solenoid valve 41 to switch the flow path and return the qualified nitrified liquid to the anoxic zone at the bottom of the treatment tower 2, providing sufficient nitrate nitrogen substrate for the denitrification reaction and forming a nitrification-denitrification denitrification cycle. Once the wastewater has completed the entire treatment process and all pollutant indicators meet the standards, the three-way solenoid valve 41 sends the wastewater into the filter chamber 43 through the drain pipe 42. After the inclined filter plate 44 intercepts residual suspended solids and the activated carbon plate 45 deeply adsorbs residual organic matter and color, the wastewater is discharged.

[0038] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A washing tower type wastewater treatment device, comprising a treatment tower (2) disposed on a support base (1), characterized in that, Also includes: The treatment tower (2) is equipped with an inlet assembly, and the inlet assembly is equipped with a crusher (7), which is used to crush suspended solids in the wastewater; The processing unit is located inside the processing tower (2) and includes a sedimentation component, a decomposition component, a transmission component and an aeration component; The sedimentation component is provided with two spiral extrusion rods (12) for conveying and extruding sedimented impurities, the decomposition component is provided with several packing tanks (21) for storing bacteria, and the aeration component is provided with aeration heads (34) for aeration. A filter assembly is provided on the support base (1), and an inclined filter plate (44) for filtering suspended solids is provided on the filter assembly.

2. The wastewater treatment device of a washing tower type according to claim 1, characterized in that, A controller (46) is fixedly installed on the support base (1), a PLC controller is fixedly connected to the controller (46), a control panel is fixedly connected to the PLC controller, and the control panel and the PLC controller are electrically connected. The control panel controls the start / stop and operation status of the water inlet assembly, treatment unit, and filtration assembly via a PLC controller.

3. The wastewater treatment device of a washing tower type according to claim 1, characterized in that, The water inlet assembly includes an air pump (5) fixedly installed on a support base (1), a water inlet pipe (3) fixedly connected to the treatment tower (2), a crushing component (7) rotatably connected inside the water inlet pipe (3), a power chamber (4) fixedly installed on the water inlet pipe (3), a closed impeller (6) rotatably connected inside the power chamber (4), a fixed connection between the crushing component (7) and the closed impeller (6), and a fixed connection between the air outlet of the air pump (5) and the power chamber (4).

4. The wastewater treatment device of a washing tower type according to claim 3, characterized in that, The precipitation assembly includes an extrusion chamber (8) disposed at the bottom of the processing tower (2), a first sealing chamber (10) is fixedly installed on the extrusion chamber (8), and two spiral extrusion rods (12) are rotatably connected to the first sealing chamber (10), and a first transmission rod (11) is rotatably connected inside the first sealing chamber (10). Both outlets of the extrusion chamber (8) are slidably connected with sealing plugs (16), and several spring telescopic rods (17) are fixedly installed between the two sealing plugs (16) and the extrusion chamber (8). The bottom of the processing tower (2) is equipped with a power mechanism.

5. A washing tower-type wastewater treatment device according to claim 4, characterized in that, The power mechanism includes a rotating motor (9) fixedly installed at the bottom of the processing tower (2), and the driving end of the rotating motor (9) is fixedly connected to the first transmission rod (11); A first one-way bearing (13) is fixedly installed on the first transmission rod (11), and a first helical gear (14) is fixedly installed on the first one-way bearing (13). A second helical gear (15) that meshes with the first helical gear (14) is fixedly installed on both of the spiral extrusion rods (12) and inside the first sealing chamber (10).

6. A washing tower-type wastewater treatment device according to claim 4, characterized in that, The decomposition component includes a spiral stirring rod (23) rotatably connected inside each packing tank (21). Each spiral stirring rod (23) is provided with a disturbance rod. The disturbance rod is used to disturb the water and biological packing inside the packing tank (21) to prevent the packing from accumulating and compacting and the pores from being blocked. The packing tank (21) is provided with a number of first filter holes (22). The first filter holes (22) are used to introduce wastewater into the packing tank (21) and prevent impurities from entering the packing tank (21).

7. A wastewater treatment device of a washing tower type according to claim 6, characterized in that, The transmission assembly includes a second sealed chamber (24) fixedly installed inside the processing tower (2), a second one-way bearing (18) fixedly installed at one end of the first transmission rod (11) through the first sealed chamber (10), a second transmission rod (19) fixedly installed on the second one-way bearing (18), and a spiral scraper (20) fixedly installed on the second transmission rod (19). A third helical gear (25) is fixedly installed on the second transmission rod (19) and inside the second sealing chamber (24). Several rotating frames are fixedly installed on the second sealing chamber (24). A third transmission rod (26) is rotatably connected to each of the rotating frames. A fourth helical gear (27) that meshes with the third helical gear (25) is rotatably connected to one end of each of the third transmission rods (26). The second sealing chamber (24) is rotatably connected to a number of fourth transmission rods (29). A sixth helical gear (30) is fixedly installed at one end of each fourth transmission rod (29). A fifth helical gear (28) that meshes with the sixth helical gear (30) is fixedly installed at one end of each third transmission rod (26). One end of each fourth transmission rod (29) is fixedly connected to the end of the spiral stirring rod (23).

8. A wastewater treatment device of a washing tower type according to claim 7, characterized in that, The aeration assembly includes an attachment plate (33) installed inside the treatment tower (2), an aeration pipe (32) installed inside the treatment tower (2), each aeration head (34) is fixedly connected to the aeration pipe (32), and the air outlet of the power chamber (4) is fixedly connected to an air supply pipe (31), which is fixedly connected to the aeration pipe (32). The aeration head (34) is equipped with an anti-clogging mechanism.

9. A wastewater treatment device of a washing tower type according to claim 8, characterized in that, The anti-clogging mechanism includes a connecting frame (35) fixedly installed on each aeration head (34), a blade impeller (36) is rotatably connected to the connecting frame (35), and a scraper (37) is fixedly installed at the end of the blade impeller (36). The scraper (37) can rotate synchronously with the blade impeller (36) to scrape off the sludge, biofilm and impurities attached to the surface of the aeration head (34) and prevent the air holes of the aeration head (34) from being blocked.

10. A wastewater treatment device of a washing tower type according to claim 8, characterized in that, The filter assembly includes a filter chamber (43) fixedly installed on a support base (1), a return pipe (38) is provided on the treatment tower (2), a water quality monitor (40) for detecting the concentration of nitrified liquid in wastewater is provided on the return pipe (38), a booster pump (39) is provided on the return pipe (38), and a three-way solenoid valve (41) is provided on the return pipe (38). The three-way solenoid valve (41) is connected to the filter chamber (43) through a drain pipe (42). The inclined filter plate (44) is fixedly installed inside the filter chamber (43), and an activated carbon plate (45) is fixedly installed inside the filter chamber (43).

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