Energy-saving baffle sewage treatment device with pusher

Abstract

The present application relates to sewage treatment technical field, especially to a kind of energy-saving type baffling sewage treatment device with pusher, including reaction tank, the inside of the reaction tank is equipped with for forming reciprocating baffling flow channel baffling treatment mechanism, baffling treatment mechanism includes the water inlet pipeline for sewage introduction for being installed in the one end of reaction tank.The hollow cavity is opened in each baffle, and aeration micro-pore is arranged on the side of meeting flow, and the small bubbles formed after compressed air is released through baffle surface will generate gas lift in the process of rising, directly acts on the water body flowing through the surface of baffle, forms additional upward driving force, can assist water flow to overcome gravity to cross baffle, make the water flow that originally completely rely on pusher to push obtains external energy supplement in crossing process, successfully improves water flow crossing efficiency under the premise of not increasing additional power equipment, and also can supplement dissolved oxygen required for microbial metabolism in reaction tank.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to an energy-saving baffled wastewater treatment device with a flow booster. Background Technology

[0002] Baffle-type wastewater treatment devices use alternating upper and lower suspended baffles in the reaction tank to create an S-shaped reciprocating flow path for the wastewater, thereby extending the water flow path and increasing the contact time between the wastewater and activated sludge. In practical applications, to ensure that the activated sludge in the tank remains suspended and is fully mixed with the wastewater, it is usually necessary to install a flow mixer in the reaction tank to provide the necessary hydraulic stirring and driving force.

[0003] However, in existing technologies, propellers are often evenly spaced along the length of the pool between adjacent baffles, without considering the different propulsion requirements of the upflow and downflow regions. This results in the propellers in the downflow region operating inefficiently, leading to a waste of equipment quantity and operating energy. In addition, the baffles are all fixed structures, and their flow channel cross-sectional area is determined during manufacturing. They cannot be adaptively adjusted according to changes in influent water quality, treatment load, and other operating conditions. When influent water quality fluctuates or the treatment load changes, the fixed cross-sectional area of ​​the flow channel may cause hydraulic mismatch in the pool, affecting the treatment effect. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an energy-saving baffled wastewater treatment device with a flow booster. This solves the technical problems of high energy consumption caused by unreasonable flow booster arrangement in existing baffled wastewater treatment devices, and the inability of fixed baffles to adapt to changes in operating conditions. It has the advantages of low overall energy consumption, dynamic adjustment of hydraulic conditions, and stable treatment effect.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an energy-saving baffled sewage treatment device with a flow booster, comprising a reaction tank, wherein the interior of the reaction tank is provided with a baffled treatment mechanism for forming a reciprocating baffled flow channel, the baffled treatment mechanism including an inlet pipe installed at one end of the reaction tank for introducing sewage, and an outlet pipe connected to the other end of the reaction tank for discharging treated sewage; the interior of the reaction tank is provided with alternating upper baffle plate one, lower baffle plate one, upper baffle plate two, and lower baffle plate two along the length direction; the upper ends of upper baffle plate one and upper baffle plate two are connected to the top wall of the reaction tank, and the lower ends of lower baffle plate one and lower baffle plate two form a bottom flow channel between them and the bottom wall of the reaction tank; the lower ends of lower baffle plate one and lower baffle plate two are connected to the bottom wall of the reaction tank, and the upper ends of lower baffle plate one and lower baffle plate two form a top flow channel between them and the top wall of the reaction tank. The flow channel, upper baffle, and lower baffle divide the reaction tank into multiple sequentially connected reaction chambers. Under the guidance of the baffles, the wastewater flows in an S-shaped flow path between the reaction chambers, alternating up and down, to prolong the water flow path and increase the contact time between the wastewater and the activated sludge. A first flow promoter and a second flow promoter are respectively installed on the opposite side walls of the reaction tank. The first flow promoter is located between the first upper baffle and the first lower baffle, and the second flow promoter is located between the second upper baffle and the second lower baffle. They are used to apply horizontal thrust to the water body to maintain the S-shaped flow path and keep the activated sludge in a suspended state. One side of the reaction tank is provided with an angle fine-tuning mechanism for adjusting the vertical tilt angle of each baffle. The interior of each baffle is provided with an aeration energy-saving mechanism for releasing air bubbles to assist the water flow in overcoming the baffle.

[0006] Preferably, a weir plate is vertically arranged between the lower baffle plate and the right side wall of the reaction tank to intercept the overflow of the treated wastewater in the reaction tank, uniformly distribute the effluent quality, and intercept suspended sludge in the tank to prevent sludge from being discharged with the effluent.

[0007] Preferably, the first impeller is fixedly installed on the front side wall of the reaction tank, and the second impeller is fixedly installed on the rear side wall of the reaction tank. The horizontal distance from the impeller center of the first impeller to the inner surface of the upper baffle plate is 1.0-1.5 times the diameter of the first impeller impeller, and the horizontal distance from the impeller center of the second impeller to the inner surface of the upper baffle plate is 1.0-1.5 times the diameter of the second impeller impeller. By arranging the impellers close to the upstream baffle plate, the impeller impellers can receive the high-speed water flow from the bottom flow channel of the upstream baffle plate to form a relay propulsion, reducing hydraulic energy loss.

[0008] Preferably, the angle fine-tuning mechanism includes an upper drive gear and a lower drive gear for driving the baffle plate to rotate and adjust. An electric telescopic rod is fixedly installed on the outside of the reaction tank. A drive gear frame is fixedly installed at the output end of the electric telescopic rod. The electric telescopic rod drives the drive gear frame to move back and forth through telescopic movement, and then converts the linear motion into the rotational motion of the baffle plate through gear and rack meshing, so as to achieve precise adjustment of the tilt angle of each baffle plate.

[0009] Preferably, the upper drive gear is fixedly mounted on the shaft end of the first and second upper deflector plates, and the lower drive gear is fixedly mounted on the shaft end of the first and second lower deflector plates. By driving the upper drive gear and the lower drive gear simultaneously through the same drive gear frame, the synchronous angle adjustment of all upper deflector plates and all lower deflector plates can be achieved, which can ensure the consistency of the tilt angle of each deflector plate.

[0010] Preferably, the drive gear frame is mounted on a mounting guide rail outside the reaction tank, and the mounting guide rail is parallel to the rotating shaft of the baffle plate. A first rack portion and a second rack portion are respectively provided on the upper and lower opposite inner sidewalls of the drive gear frame. The upper drive gear meshes with the first rack portion, and the lower drive gear meshes with the second rack portion. The upper and lower parts of the drive gear frame are respectively provided with clearance notches, the positions of which correspond to the installation positions of the baffle plate rotating shaft, to provide clearance space for the baffle plate rotating shaft when the drive gear frame moves. Vertical floating guide sleeves are respectively fitted onto the outer ends of the rotating shafts of the upper and lower drive gears. Vertical sliding grooves are provided inside the floating guide sleeves. Guide sliders that slide in cooperation with the vertical sliding grooves are provided at the upper and lower ends of the drive gear frame. When the baffle plate deflects, causing the gear center to generate… During vertical displacement, the guide slider slides relative to the vertical groove to compensate for the displacement difference, ensuring a constant center distance between the gear and the corresponding rack, avoiding rigid interference and jamming. The electric telescopic rod drives the drive gear frame to move back and forth along the mounting guide rail through telescopic movement. The upper drive gear and the shaft of the upper deflector are coaxially fixedly connected through a coupling, and the lower drive gear and the shaft of the lower deflector are coaxially fixedly connected through a coupling. The tooth direction of the first rack part and the tooth direction of the second rack part are mirror-symmetrically set. When the drive gear frame moves to the right, the first rack part drives the upper drive gear to rotate clockwise to tilt the upper deflector to the right, and the second rack part drives the lower drive gear to rotate counterclockwise to tilt the lower deflector to the right, realizing the same-direction deflection adjustment of the upper and lower deflectors. By driving the upper and lower drive gears simultaneously through the same drive gear frame, the synchronous angle adjustment of all deflectors can be achieved, ensuring the consistency of the tilt angle of each deflector.

[0011] Preferably, the aeration energy-saving mechanism includes a hollow cavity inside each baffle plate. Multiple aeration micropores communicating with the hollow cavity are opened on the flow-facing side of the baffle plate. The diameter of the aeration micropores ranges from 1.0 to 2.0 mm, preferably 1.5 mm. The aeration micropores are evenly arranged in a quincunx pattern with a spacing of 15-20 mm. The channels of the aeration micropores have a conical structure with a larger inner diameter and a smaller outer diameter, with an inner diameter of 2.0 mm and an outer diameter of 1.5 mm, used to prevent sludge backflow and adhesion. A backwashing pipeline is installed inside the hollow cavity, connected to the air supply pipeline. When the air supply pump stops running, clean water is injected through the backwashing pipeline to wash away the sludge adhering to the surface of the aeration micropores. A backflushing cleaning air manifold and an electromagnetic reversing valve are connected in parallel on the outlet pipeline of the air supply pump. The control module periodically controls the electromagnetic reversing valve to switch the airflow direction for reverse pulse cleaning, with a pulse cycle of 24. Once per hour, the baffle shaft adopts a double-channel hollow shaft structure, with a dynamic and static pressure combined mechanical seal assembly on the outer side. The shaft end is flexibly connected to the external air supply pipeline through a high-pressure rotary joint. The rotary joint uses a graphite sealing ring with a rated working pressure of 0.6MPa, allowing the baffle to rotate freely within a deflection range of ±30 degrees without affecting the air circuit seal, achieving continuous ventilation and zero leakage sealing of sewage under deflection conditions. An air filter is installed at the air inlet end of the hollow cavity to filter oil and impurities in the compressed air and prevent oil from adhering to the microporous surface. An air supply pump is fixedly installed on the outside of the reaction tank. The air outlet end of the air supply pump is connected to the hollow cavity through the air supply pipeline. The air supply pump delivers compressed air into the hollow cavity and releases it into the reaction tank through the aeration micropores to form microbubbles. The air lift generated by the rising bubbles can both propel the water flow over the baffle and replenish dissolved oxygen in the water.

[0012] Preferably, the air supply pump includes an upper air supply pump and a lower air supply pump. The air outlet of the upper air supply pump is connected to the hollow cavities of the upper baffle plate 1 and the upper baffle plate 2, and the air outlet of the lower air supply pump is connected to the hollow cavities of the lower baffle plate 1 and the lower baffle plate 2. The upper air supply pump and the lower air supply pump are independently controlled and operated, so as to independently adjust the aeration rate of the upper baffle plate and the lower baffle plate according to the differences in water quality conditions in each reaction chamber.

[0013] Preferably, each of the reaction chambers is equipped with a water flow velocity sensor for detecting water flow velocity, a first water quality sensor for detecting influent water quality is installed at the inlet end of the reaction tank, and a second water quality sensor for detecting effluent water quality is installed at the outlet end of the reaction tank. A PLC controller is installed outside the reaction tank. The water flow velocity sensor, the first water quality sensor, and the second water quality sensor are electrically connected to the signal input terminal of the PLC controller, and the signal output terminal of the PLC controller is electrically connected to the electric telescopic rod, the upper air supply pump, and the lower air supply pump, respectively. When the water flow velocity sensor detects that the water flow velocity in any reaction chamber exceeds a preset range, the PLC controller controls the electric telescopic rod to move and adjust the tilt angle of each baffle to change the cross-sectional area of ​​the flow channel. When the first water quality sensor detects that the influent water quality index exceeds a preset threshold, the PLC controller controls the upper air supply pump and / or the lower air supply pump to increase the air supply. When the second water quality sensor detects that the effluent water quality index is better than the preset standard, the PLC controller controls the upper air supply pump and / or the lower air supply pump to decrease the air supply.

[0014] By means of the above technical solution, the present invention provides an energy-saving baffled sewage treatment device with a flow booster, which has at least the following beneficial effects:

[0015] 1. In this invention, the first and second propellers are only set in the upward flow area where the sewage flows over the baffle plate. The downward flow area does not have propellers and relies on gravity for natural flow. This overcomes the equipment redundancy and energy waste caused by the uniform arrangement of propellers in each flow channel area in traditional devices, and achieves the maximum hydraulic propulsion efficiency with the minimum number of propellers.

[0016] 2. This invention, by setting an angle fine-tuning mechanism, transmits linear motion synchronously to all baffles when the toothed frame reciprocates. When the baffle changes from vertical to inclined, the cross-sectional area of ​​the flow channel between the free end of the baffle and the corresponding pool wall changes synchronously, thereby achieving stepless adjustment of the water flow velocity and turbulence intensity in the pool. This allows the device to maintain the optimal hydraulic state under different operating conditions, solving the problem that traditional fixed baffles cannot dynamically adapt to changes in operating conditions.

[0017] 3. This invention can simultaneously drive all upper and lower baffles to deflect synchronously in opposite directions using the same drive gear frame. This not only ensures the high consistency of the tilt angle of each baffle, avoiding the problem of uneven flow channels caused by angle deviation, but also simplifies the transmission structure and reduces equipment cost and failure rate.

[0018] 4. This invention features hollow cavities inside each baffle plate and aeration micropores on the flow-facing side. The tiny bubbles formed after compressed air is released through the baffle plate surface generate lift during their ascent, directly acting on the water flowing over the baffle plate surface to create additional upward driving force. This helps the water flow overcome gravity and tumble over the baffle plate, allowing the water flow, which originally relied entirely on the propeller, to receive external energy during the tumbling process. This successfully improves the tumbling efficiency of the water flow without adding additional power equipment, and also replenishes the dissolved oxygen required for microbial metabolism in the reaction tank.

[0019] 5. The upper air supply pump of this invention independently controls the aeration intensity of each upper baffle plate, and the lower air supply pump independently controls the aeration intensity of each lower baffle plate. Operators can independently adjust the air supply according to the water quality monitoring data of each reaction chamber, taking into account the differences in oxygen demand and flow requirements of the activated sludge in different reaction chambers. This fully considers the actual working conditions of gradual changes in water quality in each reaction chamber, and effectively avoids energy waste caused by over-aeration while ensuring treatment effect.

[0020] 6. This invention achieves automatic closed-loop adjustment of the cross-sectional area of ​​the flow channel and the aeration intensity through the coordinated operation of the water flow velocity sensor, water quality sensor and PLC controller. This enables the device to automatically maintain the optimal hydraulic state and aeration intensity under the conditions of fluctuating influent water quality and changes in treatment load, thus achieving energy-saving operation while ensuring treatment effect. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 The three-dimensional structure of the present invention Figure 1 ; Figure 2 The three-dimensional structure of the present invention Figure 2 ; Figure 3 This is a schematic diagram of the flow deflection processing mechanism in this invention; Figure 4 This is a schematic diagram of the angle fine-tuning mechanism in this invention; Figure 5 This is a schematic diagram showing the fit of some structures in this invention; Figure 6 This is a schematic diagram of the aeration energy-saving mechanism in this invention.

[0022] In the diagram: 1. Reaction tank; 2. Baffle treatment mechanism; 201. Inlet pipe; 202. Outlet pipe; 203. Upper baffle plate one; 204. Lower baffle plate one; 205. Upper baffle plate two; 206. Lower baffle plate two; 207. Outlet weir plate; 208. First flow promoter; 209. Second flow promoter; 3. Angle fine adjustment mechanism; 301. Upper drive gear; 302. Lower drive gear; 303. Drive gear frame; 304. Electric telescopic rod; 4. Aeration energy-saving mechanism; 401. Hollow cavity; 402. Aeration micropores; 403. Upper air supply pump; 404. Lower air supply pump. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1 While existing baffle-type wastewater treatment devices can form an S-shaped flow path by alternating upper and lower baffles to extend the water flow path, these baffles are all fixed structures and cannot be dynamically adjusted according to changes in influent water quality and flow rate. To address this technical deficiency in existing technologies, such as... Figures 1-5 As shown, this embodiment proposes an energy-saving baffled sewage treatment device with a flow booster, which can achieve full mixing of sewage and activated sludge without adding additional stirring equipment and reduce the overall energy consumption of the device. The device includes a reaction tank 1, and the interior of the reaction tank 1 is provided with a baffled treatment mechanism 2 for forming a reciprocating baffled flow channel.

[0025] Specifically, the baffle treatment mechanism 2 includes an inlet pipe 201 installed at one end of the reaction tank 1 for introducing sewage, and an outlet pipe 202 connected to the other end of the reaction tank 1 for discharging treated sewage. Inside the reaction tank 1, alternating upper baffle plate 203, lower baffle plate 204, upper baffle plate 205, and lower baffle plate 206 are arranged along the length direction. The upper ends of upper baffle plate 203 and upper baffle plate 205 are connected to the top wall of the reaction tank 1, and their lower ends form a bottom flow channel with the bottom wall of the reaction tank 1. The lower ends of lower baffle plate 204 and lower baffle plate 206 are connected to the bottom wall of the reaction tank 1, and their upper ends form a top flow channel with the top wall of the reaction tank 1. The upper and lower baffle plates divide the reaction tank 1 into multiple sequentially connected reaction chambers. Sewage passes through the baffles... Guided by the flow plates, the water flows in an S-shaped flow path that alternates between the upper and lower baffles between the reaction chambers, so as to extend the water flow path and increase the contact time between the wastewater and the activated sludge. A vertical effluent weir plate 207 is arranged between the lower baffle plate 206 and the right side wall of the reaction tank 1, which is used to intercept the overflow of the treated wastewater in the reaction tank 1, uniformly effluent quality, and intercept suspended sludge in the tank to prevent sludge from being discharged with the effluent. A first flow pusher 208 and a second flow pusher 209 are respectively arranged on the opposite side walls of the reaction tank 1. The first flow pusher 208 is arranged between the upper baffle plate 203 and the lower baffle plate 204, and the second flow pusher 209 is arranged between the upper baffle plate 205 and the lower baffle plate 206, which are used to apply horizontal thrust to the water body to maintain the S-shaped flow path and keep the activated sludge in a suspended state.

[0026] More specifically, the first impeller 208 is fixedly installed on the front side wall of the reaction tank 1, and the second impeller 209 is fixedly installed on the rear side wall of the reaction tank 1. The horizontal distance between the impeller center of the first impeller 208 and the inner surface of the upper baffle 203 is 1.0-1.5 times the impeller diameter of the first impeller 208, and the horizontal distance between the impeller center of the second impeller 209 and the inner surface of the upper baffle 205 is 1.0-1.5 times the impeller diameter of the second impeller 209. By arranging the impellers close to the upstream baffle, the impeller impellers can receive the high-speed water flow from the bottom flow channel of the upstream baffle to form a relay propulsion, reducing hydraulic energy loss.

[0027] More comprehensively, each reaction chamber is equipped with a water flow velocity sensor to detect the water flow velocity in each reaction chamber in real time. The inlet end of reaction tank 1 is equipped with a first water quality sensor to detect the influent water quality indicators (including but not limited to COD concentration, ammonia nitrogen concentration, SS concentration, etc.) in real time. The outlet end of reaction tank 1 is equipped with a second water quality sensor to detect the effluent water quality indicators in real time. A PLC controller is installed outside reaction tank 1. The water flow velocity sensor, the first water quality sensor and the second water quality sensor are electrically connected to the signal input terminal of the PLC controller, and the signal output terminal of the PLC controller is electrically connected to the electric telescopic rod 304, the upper air supply pump 403 and the lower air supply pump 404, respectively.

[0028] The aforementioned water flow velocity sensor can be an ultrasonic Doppler current meter, the first water quality sensor and the second water quality sensor can be a COD online monitor or an ammonia nitrogen online monitor, and the PLC controller can be a commercially available general-purpose programmable logic controller. The specific model can be selected by those skilled in the art according to the actual working conditions, and is not limited here.

[0029] As can be seen from the above, after the sewage enters the reaction tank 1 through the inlet pipe 201, it will flow through the bottom flow channel at the bottom of the upper baffle plate 203, the top flow channel at the top of the lower baffle plate 204, the bottom flow channel at the bottom of the upper baffle plate 205, and the top flow channel at the top of the lower baffle plate 206 in sequence, thereby forming a complete S-shaped reciprocating flow path in the reaction tank 1.

[0030] As the wastewater passes through the baffles, the cross-sectional area of ​​the flow channel changes periodically, and the water flow generates strong turbulence and shearing, which allows the wastewater to fully contact and mix with the activated sludge enriched in each reaction chamber. During the mixing process, the microorganisms in the activated sludge adsorb and degrade the organic pollutants in the wastewater.

[0031] Furthermore, during this process, the first thruster 208 generates a horizontal thrust in the upflow region between the upper baffle 203 and the lower baffle 204, accelerating the water flowing in from the bottom of the upper baffle 203 towards and overturning the lower baffle 204. The second thruster 209 acts on the water in the same way in the upflow region between the upper baffle 205 and the lower baffle 206.

[0032] The two propellers are only arranged in the upward flow area where the water flows upward, while the downward flow area relies on gravity for natural flow. Thus, while ensuring the overall circulation and sludge suspension effect in the pool, the maximum hydraulic propulsion efficiency can be achieved with the fewest propellers.

[0033] After being deflected, the purified water overflows over the top of the effluent weir 207 and enters the effluent area, and is finally discharged through the effluent pipe 202. The suspended sludge is intercepted by the effluent weir 207 in the reaction tank 1, maintaining the stability of the activated sludge concentration in the system.

[0034] Example 2 In order to enable wastewater treatment equipment to flexibly adjust its hydraulic characteristics to adapt to different treatment needs under conditions of fluctuating influent water quality or changes in treatment load, such as... Figure 1 , Figure 4 as well as Figure 5 As shown, in this embodiment, an angle fine-tuning mechanism 3 for adjusting the vertical tilt angle of each baffle is provided on one side of the reaction tank 1. Specifically, the angle fine-tuning mechanism 3 includes an upper drive gear 301 and a lower drive gear 302 for driving the baffle to rotate and adjust. An electric telescopic rod 304 is fixedly installed on the outside of the reaction tank 1. A drive gear frame 303 is fixedly installed at the output end of the electric telescopic rod 304. The drive gear frame 303 is set on the mounting guide rail on the outside of the reaction tank 1. The mounting guide rail is parallel to the rotation axis of the baffle. The upper and lower opposite inner sidewalls of the drive gear frame 303 are respectively provided with the first... The drive gear frame 303 comprises a first rack section and a second rack section. An upper drive gear 301 meshes with the first rack section, and a lower drive gear 302 meshes with the second rack section. The upper and lower parts of the drive gear frame 303 are respectively provided with clearance notches, the positions of which correspond to the installation positions of the baffle shaft, providing clearance space for the baffle shaft when the drive gear frame 303 moves. Vertical floating guide sleeves are respectively fitted onto the outer ends of the shafts of the upper drive gear 301 and the lower drive gear 302. Vertical sliding grooves are provided inside the floating guide sleeves, and the upper and lower ends of the drive gear frame 303 are correspondingly provided with guides that slide in cooperation with the vertical sliding grooves. The guide slider; when the deflection of the baffle plate causes a vertical displacement component at the center of the gear, the guide slider slides relative to the vertical groove to compensate for the displacement difference, ensuring that the center distance between the gear and the corresponding rack is constant, avoiding rigid interference and jamming; the electric telescopic rod 304 drives the drive gear frame 303 to move back and forth along the mounting guide rail through telescopic movement; the upper drive gear 301 is coaxially fixedly connected to the rotating shafts of the upper baffle plate 1 203 and the upper baffle plate 205 through a coupling, and the lower drive gear 302 is coaxially fixedly connected to the rotating shafts of the lower baffle plate 1 204 and the lower baffle plate 206 through a coupling; The tooth direction of the first rack section is mirror-symmetrically set with the tooth direction of the second rack section. When the drive gear frame 303 moves to the right, the first rack section drives the upper drive gear 301 to rotate clockwise to drive the upper deflector plate to tilt to the right, and the second rack section drives the lower drive gear 302 to rotate counterclockwise to drive the lower deflector plate to tilt to the right, so as to realize the same deflection adjustment of the upper and lower deflectors. By driving the upper drive gear 301 and the lower drive gear 302 simultaneously through the same drive gear frame 303, the synchronous angle adjustment of all deflectors can be realized, which can ensure the consistency of the tilt angle of each deflector plate.

[0035] As can be seen from the above, when it is necessary to adjust the cross-sectional area of ​​the flow channel of the baffle plate according to the change of the influent flow rate or the treatment load, the water flow velocity sensor in each reaction chamber first detects the water flow velocity in each reaction chamber in real time and feeds back the detected water flow velocity signal to the PLC controller. When the PLC controller determines that the water flow velocity in a certain reaction chamber exceeds the preset upper or lower limit value of the water flow velocity, the PLC controller calculates and judges according to the feedback signal and then sends a control command to the electric telescopic rod 304 to start the electric telescopic rod 304. When the electric telescopic rod 304 extends or retracts, it will drive the drive tooth frame 303 fixedly connected to it to move back and forth to the left or right in the horizontal direction.

[0036] When the drive gear frame 303 moves, the first rack portion and the second rack portion on its upper and lower inner sidewalls will drive the upper drive gear 301 and the lower drive gear 302 that mesh with it to generate rotational motion in opposite directions. Since the upper drive gear 301 is coaxially fixed with the rotating shaft of the upper deflector 1 203 and the upper deflector 205, and the lower drive gear 302 is coaxially fixed with the rotating shaft of the lower deflector 1 204 and the lower deflector 206, all the deflectors will deflect synchronously.

[0037] After the tilt angle of each baffle changes from vertical to tilted, the angle between the water-facing surface of the baffle and the horizontal plane will change, thereby causing the cross-sectional area of ​​the flow channel between the free end of the baffle and the corresponding pool wall to increase or decrease synchronously (when the water flow velocity exceeds the upper limit, the PLC controller controls the baffle to deflect in the direction of increasing the cross-sectional area of ​​the flow channel to reduce the water flow velocity; when the water flow velocity is lower than the lower limit, the PLC controller controls the baffle to deflect in the direction of decreasing the cross-sectional area of ​​the flow channel to increase the water flow velocity), until the water flow velocity in each reaction chamber returns to the preset range, the PLC controller sends a stop command to the electric telescopic rod 304, each baffle maintains the current tilt angle, and when the electric telescopic rod 304 moves in the opposite direction, each baffle returns to the initial angle.

[0038] Therefore, by real-time monitoring by the water flow velocity sensor and real-time judgment and control of the extension and retraction of the electric telescopic rod 304 by the PLC controller, the tilt angle of each baffle can be precisely adjusted, realizing stepless closed-loop adjustment of the cross-sectional area of ​​the bottom and top flow channels, thereby changing the water flow velocity and turbulence intensity in the pool, so that the device can always maintain the optimal hydraulic state under different influent flow rates and treatment loads.

[0039] Example 3 To further improve the flow efficiency of water over the baffles without adding additional power equipment, and to provide the necessary dissolved oxygen for the growth and metabolism of microorganisms in reaction tank 1, thereby achieving a synergistic effect of energy saving through flow propulsion and enhanced biological treatment, such as... Figure 1 , Figure 3 , Figure 4 as well as Figure 6 As shown, in this embodiment, an aeration energy-saving mechanism 4 is provided inside each baffle plate to release air bubbles to assist the water flow in overcoming the baffle plate. Specifically, the aeration energy-saving mechanism 4 includes a hollow cavity 401 opened inside the body of each baffle plate. Multiple aeration micro-holes 402 communicating with the hollow cavity 401 are opened on the flow-facing side of the baffle plate. The pore diameter of the aeration micro-holes 402 is in the range of 1.0-2.0 mm, preferably 1.5 mm. The aeration micro-holes 402 are evenly arranged in a plum blossom shape with a pore spacing of 15-20 mm. The channel of the aeration micro-holes 402 has a conical structure with a larger inner diameter and a smaller outer diameter, with an inner diameter of 2.0 mm and an outer diameter of 1 mm. 5mm thick, used to prevent sludge backflow and adhesion; a backwashing pipeline is installed inside the hollow cavity 401, which is connected to the air supply pipeline. When the air supply pump stops running, clean water is injected through the backwashing pipeline to wash away the sludge adhering to the surface of the aeration micropores 402; a backflushing cleaning air manifold and an electromagnetic reversing valve are connected in parallel on the outlet pipeline of the air supply pump. The control module periodically controls the electromagnetic reversing valve to switch the airflow direction for reverse pulse cleaning, with a pulse cycle of once every 24 hours; the baffle plate shaft adopts a double-channel hollow shaft structure, with a dynamic and static pressure combined mechanical seal assembly sleeved on the outside, and the shaft end is connected to the external air supply pipeline through a high-pressure rotary joint. The flexible connection and rotary joint using a graphite sealing ring, with a rated working pressure of 0.6MPa, allow the baffle to rotate freely within a ±30 degree deflection range without affecting the air circuit seal, achieving continuous ventilation and zero-leakage sealing during deflection. An air filter is installed at the air inlet of the hollow cavity 401 to filter oil and impurities in the compressed air, preventing oil from adhering to the microporous surface. An air supply pump is fixedly installed externally on the reaction tank 1, and its outlet is connected to the hollow cavity 401 via an air supply pipeline. The air supply pump delivers compressed air into the hollow cavity 401 and releases it into the reaction tank 1 through the aeration micropores 402. The formation of microbubbles not only utilizes the lift generated by the rising bubbles to propel the water flow over the baffles, but also replenishes dissolved oxygen to the water. The air supply pumps include an upper air supply pump 403 and a lower air supply pump 404. The air outlet of the upper air supply pump 403 is connected to the hollow cavity 401 of the upper baffle 1 203 and the upper baffle 2 205, and the air outlet of the lower air supply pump 404 is connected to the hollow cavity 401 of the lower baffle 1 204 and the lower baffle 2 206. The upper air supply pump 403 and the lower air supply pump 404 are independently controlled and operated, thereby independently adjusting the aeration rate of the upper and lower baffles according to the differences in water quality conditions in each reaction chamber.

[0040] As can be seen from the above, when the sewage treatment device needs to enhance the water flow overflow effect or replenish dissolved oxygen in the water in reaction tank 1 during operation, the air supply pump is started.

[0041] Subsequently, compressed air is delivered to the hollow cavity 401 inside each baffle plate through the air supply pipeline. After the gas pressure inside the hollow cavity 401 increases, it will escape from the densely distributed aeration micropores 402 on the flow-facing side of the baffle plate, thereby forming a large number of tiny and uniform bubbles in the water of the reaction tank 1.

[0042] As these bubbles rise, they can dissolve oxygen from the air into the water through mass transfer at the gas-liquid interface, providing necessary electron acceptors for aerobic microorganisms in each reaction chamber and promoting the aerobic degradation of organic pollutants. On the other hand, the lift generated by the continuous rise of a large number of bubbles from the baffle plate can directly act on the water flowing over the surface of the baffle plate, forming an additional upward driving force. This helps the water flow overcome gravity and smoothly cross the top flow channel of the baffle plate, allowing the water flow process, which originally relied entirely on the hydraulic power of the thruster, to obtain external energy supplementation.

[0043] Furthermore, the air supply is automatically controlled by the PLC controller based on feedback signals from the water quality sensors. Specifically, the first water quality sensor detects the influent water quality indicators in real time, and the second water quality sensor detects the effluent water quality indicators in real time. Both sensors feed back the detected water quality signals to the PLC controller. When the first water quality sensor detects that the influent COD or ammonia nitrogen concentration exceeds the preset threshold, the PLC controller sends a control command to the corresponding upper air supply pump 403 and / or lower air supply pump 404 based on the feedback signal to increase the air supply and enhance the metabolic activity of aerobic microorganisms in the corresponding reaction chamber to improve the pollutant removal rate. When the second water quality sensor detects that the effluent water quality indicators are better than the preset standard, the PLC controller sends a control command to the corresponding air supply pump to reduce the air supply to avoid over-aeration and energy waste.

[0044] The upper air supply pump 403 independently controls the aeration intensity of the upper baffle plate 1 203 and the upper baffle plate 2 205, and the lower air supply pump 404 independently controls the aeration intensity of the lower baffle plate 1 204 and the lower baffle plate 2 206. The operator or PLC controller can adjust the air supply of the upper air supply pump 403 and the lower air supply pump 404 according to the water quality monitoring data of each reaction chamber and the actual oxygen demand and flow pattern requirements of different reaction chambers. This can ensure the treatment effect while avoiding energy waste caused by over-aeration and achieve synergistic optimization of aeration energy supply and propulsion energy supply.

[0045] In addition, the adjustment of air supply and water flow rate can be carried out in tandem. When the PLC controller determines that the cross-sectional area of ​​the flow channel needs to be increased (i.e., the water flow rate needs to be reduced) based on the feedback signal from the water flow rate sensor, the air supply of the corresponding reaction chamber is increased simultaneously. The increased amount of bubbles enhances the air lift assist effect, which compensates for the reduction in water flow thrust caused by the increase in the cross-sectional area of ​​the flow channel, ensuring that the water flow can still smoothly pass over the baffle.

[0046] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving baffled wastewater treatment device with a flow booster, comprising a reaction tank (1), characterized in that: The reaction tank (1) is equipped with a baffle processing mechanism (2) for forming a reciprocating baffle flow channel. The baffle treatment mechanism (2) includes an inlet pipe (201) installed at one end of the reaction tank (1) for introducing sewage, and an outlet pipe (202) connected to the other end of the reaction tank (1) for discharging treated sewage. The interior of the reaction tank (1) is arranged alternately along the length direction with an upper baffle plate (203), a lower baffle plate (204), an upper baffle plate (205), and a lower baffle plate (206). The upper ends of the upper baffle plate (203) and the upper baffle plate (205) are connected to the top wall of the reaction tank (1), and the lower ends of the upper baffle plate (203) and the lower baffle plate (205) form a bottom flow channel between them and the bottom wall of the reaction tank (1). The lower ends of the lower baffle plate (204) and the lower baffle plate (206) are connected to the bottom wall of the reaction tank (1), and the upper ends of the lower baffle plate (204) and the lower baffle plate (206) form a top flow channel between them and the top wall of the reaction tank (1). The upper baffle plate and the lower baffle plate divide the interior of the reaction tank (1) into multiple reaction chambers connected in sequence. The reaction tank (1) is provided with a first flow promoter (208) and a second flow promoter (209) on its opposite side walls. The first flow promoter (208) is located between the first upper baffle plate (203) and the first lower baffle plate (204), and the second flow promoter (209) is located between the second upper baffle plate (205) and the second lower baffle plate (206). The reaction tank (1) is provided with an angle fine-tuning mechanism (3) on one side for adjusting the vertical tilt angle of each baffle plate, and an aeration energy-saving mechanism (4) for releasing air bubbles to assist the water flow in overcoming the baffle plate is provided inside each baffle plate.

2. The energy-saving baffled sewage treatment device with a flow promoter according to claim 1, characterized in that: A water outlet weir plate (207) is vertically arranged between the lower baffle plate (206) and the right side wall of the reaction tank (1).

3. The energy-saving baffled sewage treatment device with a flow promoter according to claim 1, characterized in that: The first impeller (208) is fixedly installed on the front side wall of the reaction tank (1), and the second impeller (209) is fixedly installed on the rear side wall of the reaction tank (1). The horizontal distance between the impeller center of the first impeller (208) and the inner surface of the upper baffle plate (203) is 1.0-1.5 times the impeller diameter of the first impeller (208), and the horizontal distance between the impeller center of the second impeller (209) and the inner surface of the upper baffle plate (205) is 1.0-1.5 times the impeller diameter of the second impeller (209).

4. The energy-saving baffled sewage treatment device with a flow promoter according to claim 1, characterized in that: The angle fine-tuning mechanism (3) includes an upper drive gear (301) and a lower drive gear (302) for driving the baffle plate to rotate and adjust. An electric telescopic rod (304) is fixedly installed on the outside of the reaction tank (1), and a drive gear frame (303) is fixedly installed at the output end of the electric telescopic rod (304).

5. An energy-saving baffled sewage treatment device with a flow promoter according to claim 4, characterized in that: The upper drive gear (301) is fixedly mounted on the shaft ends of the upper baffle plate one (203) and the upper baffle plate two (205), and the lower drive gear (302) is fixedly mounted on the shaft ends of the lower baffle plate one (204) and the lower baffle plate two (206).

6. The energy-saving baffled sewage treatment device with a flow promoter according to claim 4, characterized in that: The drive gear frame (303) is mounted on the mounting rail outside the reaction tank (1). The upper and lower inner sidewalls of the drive gear frame (303) are respectively provided with a first rack and a second rack. The upper drive gear (301) meshes with the first rack and the lower drive gear (302) meshes with the second rack. The upper and lower parts of the drive gear frame (303) are respectively provided with clearance notches to provide clearance space for the baffle shaft when the drive gear frame (303) moves. The outer ends of the shafts of the upper drive gear (301) and the lower drive gear (302) are respectively fitted with vertical floating guide sleeves. The floating guide sleeves are provided with vertical sliding grooves inside. The upper and lower ends of the drive gear frame (303) are respectively provided with guide sliders that slide with the vertical sliding grooves.

7. The energy-saving baffled sewage treatment device with a flow promoter according to claim 4, characterized in that: The aeration energy-saving mechanism (4) includes a hollow cavity (401) opened inside each baffle plate. Multiple aeration micropores (402) connected to the hollow cavity (401) are opened on the flow-facing side of the baffle plate. The diameter of the aeration micropores (402) is 1.0-2.0 mm. The channels of the aeration micropores (402) are tapered structures with larger inner diameters and smaller outer diameters. A backwashing pipeline is provided inside the hollow cavity (401). The backwashing pipeline is connected to the air supply pipeline. The rotating shaft of the baffle plate adopts a double-channel hollow shaft structure. The shaft end is flexibly connected to the air supply pipeline through a high-pressure rotary joint. The high-pressure rotary joint allows the baffle plate to rotate freely within the deflection range without affecting the air circuit seal. An air supply pump is fixedly installed outside the reaction tank (1). The air outlet of the air supply pump is connected to the hollow cavity (401) through the air supply pipeline.

8. An energy-saving baffled sewage treatment device with a flow promoter according to claim 7, characterized in that: The air supply pump includes an upper air supply pump (403) and a lower air supply pump (404). The outlet of the upper air supply pump (403) is connected to the hollow cavity (401) of the upper baffle plate (203) and the upper baffle plate (205). The outlet of the lower air supply pump (404) is connected to the hollow cavity (401) of the lower baffle plate (204) and the lower baffle plate (206).

9. An energy-saving baffled sewage treatment device with a flow promoter according to claim 8, characterized in that: Each of the reaction chambers is equipped with a water flow velocity sensor for detecting water flow velocity. The inlet end of the reaction tank (1) is equipped with a first water quality sensor for detecting the quality of the inlet water. The outlet end of the reaction tank (1) is equipped with a second water quality sensor for detecting the quality of the outlet water. A PLC controller is provided outside the reaction tank (1). The water flow velocity sensor, the first water quality sensor, and the second water quality sensor are electrically connected to the signal input terminal of the PLC controller. The signal output terminal of the PLC controller is electrically connected to the electric telescopic rod (304), the upper air supply pump (403), and the lower air supply pump (404).

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