A mixed aeration device for industrial wastewater treatment

Abstract

The application discloses an industrial sewage treatment mixed aeration device, belonging to the technical field of sewage treatment. The industrial sewage treatment mixed aeration device comprises a square frame, sliding rods are arranged on the two sides of the square frame, a rotary motor is arranged at the top of the square frame, a screw rod is fixedly connected to the output end of the rotary motor, a transmission plate is assembled to the upper side of the screw rod, a transmission square rod is fixedly installed at the bottom of the transmission plate, and a square box is fixedly installed at the bottom of the transmission square rod. The application is provided with a main shaft, two groups of telescopic components, a spring, a telescopic block, a rotating cylinder one and a rotating cylinder two provided with different limiting blocks, and independent driving control of the soft fan blade and the rotating fan blade in different rotating directions is realized by the same driving motor. The strong aeration or strong stirring mode can be switched according to the sewage treatment stage, and the equipment energy consumption and manufacturing cost are effectively reduced.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically relating to a mixed aeration device for industrial wastewater treatment. Background Technology

[0002] Wastewater treatment equipment is an industrial device that can effectively treat domestic sewage and industrial wastewater in urban areas, preventing sewage and pollutants from flowing directly into water bodies. It is of great significance for improving the ecological environment, enhancing the city's image, and promoting economic development. In wastewater treatment, aeration refers to the artificial introduction of air into the biological aeration tank through appropriate equipment to achieve the desired purpose. Aeration has the purpose of preventing suspended solids in the tank from settling and enhancing the contact between organic matter, microorganisms, and dissolved oxygen in the tank.

[0003] The announcement number CN224337392U describes a mixed aeration device for industrial wastewater treatment, comprising a square frame. Support members are fixedly installed on the outer surface of the square frame. A geared motor is fixedly installed on the upper surface of the square frame. A lead screw is fixedly connected to the output end of the geared motor. A screw plate is threadedly connected to the outer surface of the lead screw. Two sliding columns are fixedly connected to the inner wall of the square frame. A transmission plate is slidably connected to the outer surface of each sliding column, and the transmission plate is fixedly connected to the screw plate. A transmission square rod is fixedly connected to the bottom surface of each transmission plate. A connecting frame is fixedly connected to the bottom ends of the two transmission square rods.

[0004] In the aforementioned application documents, a speed reducer motor drives a lead screw to rotate, causing the screw plate, transmission plate, and other components to move in tandem, thereby achieving height adjustment of the square box, mixing components, and aeration components. This allows for precise adaptation to sewage tanks of different depths. However, in actual sewage treatment processes, the requirements for aeration and mixing vary at different operating stages. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a mixed aeration device for industrial wastewater treatment, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides a mixed aeration device for industrial wastewater treatment, comprising a square frame, sliding rods on both sides of the square frame, a rotary motor on the top of the square frame, a helical rod fixedly connected to the output end of the rotary motor, a transmission plate mounted on the upper side of the helical rod, a transmission square rod fixedly installed at the bottom of the transmission plate, a square box fixedly installed at the bottom of the transmission square rod, a partition fixedly installed inside the square box, an aerator fixedly installed on the top of the partition, an aerator fixedly connected to the output end of the aerator, and a drive mechanism on the bottom of the partition. The drive motor has a rotating device mounted on the bottom of the square box. The rotating device includes a rotating cylinder 1 rotatably mounted on the bottom of the square box and a main shaft fixedly mounted on the output end of the drive motor. A gentle fan blade is rotatably mounted on the outer side of the rotating cylinder 1. A limit block 1 is set inside the rotating cylinder 1. A rotating cylinder 2 is rotatably mounted on the bottom of the rotating cylinder 1. A fixing block is fixedly mounted on the outer side of the rotating cylinder 2. A transmission rod is rotatably mounted on the front of the fixing block. A rotating fan blade is mounted on the outer side of the transmission rod. A limit block 2 is set on the inner side of the rotating cylinder 2. A telescopic component is mounted on the outer side of the main shaft.

[0007] According to the above technical solution, the telescopic assembly includes a telescopic shell fixedly installed on the outside of the main shaft, a spring is fixedly installed inside the telescopic shell, and a telescopic block is fixedly installed at the end of the spring away from the telescopic shell.

[0008] According to the above technical solution, the number of telescopic components is two sets, and the two sets of telescopic components correspond to limit block one and limit block two.

[0009] According to the above technical solution, the inside of the square frame is provided with a sliding column, and the sliding column is connected to the transmission plate through and in a sliding manner.

[0010] According to the above technical solution, a stirring device for enhancing the stirring effect is installed on the side of the fixed block away from the transmission rod.

[0011] According to the above technical solution, the stirring device includes a driven rod fixedly installed on the side of the transmission rod away from the rotating fan blade, a transmission gear one disposed on the side of the fixed block away from the transmission rod, and a hollow circular rack fixedly installed on the side of the fixed block away from the transmission rod. A transmission gear two is assembled on the left side of the driven rod, a rotating rod is fixedly installed on the left side of the transmission gear one, and a stirring blade is assembled on the left side of the rotating rod.

[0012] According to the above technical solution, the second transmission gear meshes with the first transmission gear, and the first transmission gear meshes with the hollow circular rack.

[0013] According to the above technical solution, the rotating cylinder II is equipped with a striking device for striking the aeration pipe on the side away from the drive motor.

[0014] According to the above technical solution, the striking device includes a half-tooth gear fixedly installed on the side of the rotating cylinder two away from the drive motor, a circular platform rotatably installed on the right side of the rotating cylinder two, and a striking block fixedly installed on the front of the aeration pipe. An L-shaped mounting rod is fixedly installed on the front of the circular platform, a spring two is fixedly installed on the right side of the L-shaped mounting rod, and a striking rod is fixedly installed on the side of the spring two away from the L-shaped mounting rod.

[0015] According to the above technical solution, the bottom of the striking rod is provided with teeth, the striking rod meshes with the half-tooth gear, and the striking rod is slidably connected to the L-shaped mounting rod.

[0016] The advantages of this application are: (1) This application sets a main shaft, two sets of telescopic components, a spring, a telescopic block, and rotating cylinders 1 and 2 with different limit blocks, limit block 1 and limit block 2, to realize independent drive control of the gentle fan blades and rotating fan blades by the same drive motor in different rotation directions. The strong aeration or strong stirring mode can be switched as needed according to the sewage treatment stage, which effectively reduces the energy consumption and manufacturing cost of the equipment.

[0017] (2) This application sets up a planetary gear transmission structure consisting of a driven rod, a second transmission gear, a first transmission gear and a hollow circular rack, so that the stirring blade rotates at high speed while revolving with the fixed block, which greatly enhances the turbulence intensity and stirring effect of the sewage and effectively eliminates the stirring dead zone.

[0018] (3) This application sets up a half-tooth gear, a second spring and a striking rod. The intermittent meshing characteristic of the half-tooth gear drives the striking rod to periodically and repeatedly strike the striking block and aeration pipe, which can promptly remove the pollutants and crystalline scale attached to the pipe wall, effectively avoid the blockage of the aeration pipe, ensure the long-term stability of aeration efficiency and extend the equipment maintenance cycle. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the corrective device structure of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the corrective device structure of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the corrective device structure of the present invention. Figure 3 ; Figure 6 This is a schematic diagram of the corrective device structure of the present invention. Figure 4 ; Figure 7 This is a schematic diagram of the mitigation device structure of the present invention; Figure 8 This is a schematic diagram of the rotating device structure of the present invention. Figure 1 ; Figure 9 This is a schematic diagram of the rotating device structure of the present invention. Figure 2 .

[0020] Explanation of key figure labels: 100. Sliding rod; 200. Square frame; 300. Rotary motor; 400. Helical rod; 500. Transmission plate; 600. Transmission square rod; 700. Square box; 800. Partition plate; 900. Aerator; 1000. Aeration pipe; 1100. Drive motor; 1200. Rotating device; 1201. Rotating cylinder one; 1202. Gentle fan blade; 1203. Rotating cylinder two; 1204. Fixing block; 1205. Transmission rod; 1206. Rotating fan blade; 1207. Limiting block one; 1208. Limiting block two; 1209. Main shaft; 1210. Telescopic shell; 1211. Telescopic block; 1212. Spring one; 1300. Stirring device; 1301. Driven rod; 1302. Transmission gear two; 1303. Rotating rod; 1304. Transmission gear one; 1305. Stirring blade; 1306. Hollow circular rack; 1400, Striking device; 1401, Half-tooth gear; 1402, Circular platform; 1403, L-shaped mounting rod; 1404, Striking rod; 1405, Spring II; 1406, Striking block. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0022] Example 1, as Figures 1-6As shown, a mixing aeration device for industrial wastewater treatment includes a square frame 200, sliding rods 100 on both sides of the square frame 200, a rotary motor 300 on the top of the square frame 200, a screw rod 400 fixedly connected to the output end of the rotary motor 300, a transmission plate 500 mounted on the upper side of the screw rod 400, a sliding support column inside the square frame 200, the sliding support column and the transmission plate 500 being through and slidably connected, thereby accurately converting the rotational motion of the rotary motor 300 into the vertical lifting motion of the transmission plate 500, a transmission square rod 600 fixedly installed at the bottom of the transmission plate 500, and a square box 700 fixedly installed at the bottom of the transmission square rod 600. The square box 700 can be raised and lowered together with the transmission plate 500. A partition 800 is fixedly installed inside the square box 700. An aerator 900 is fixedly installed on the top of the partition 800. An aerator pipe 1000 is fixedly connected to the output end of the aerator 900 to evenly release the generated gas into the wastewater. A drive motor 1100 is installed at the bottom of the partition 800. A rotating device 1200 is assembled at the bottom of the square box 700. The rotating device 1200 includes a rotating cylinder 1201 rotatably installed at the bottom of the square box 700, a main shaft 1209 fixedly installed at the output end of the drive motor 1100, and flexible fan blades 120 rotatably installed on the outer side of the rotating cylinder 1201. 2. These fan blades are designed to generate a relatively gentle water flow, suitable for conditions requiring gentle mixing or supplemental aeration. A limiting block 1207 is installed inside the rotating cylinder 1201. A rotating cylinder 2 1203 is rotatably mounted at the bottom of the rotating cylinder 1201. A fixing block 1204 is fixedly mounted on the outside of the rotating cylinder 2 1203. A transmission rod 1205 is rotatably mounted on the front of the fixing block 1204. Rotating fan blades 1206 are mounted on the outside of the transmission rod 1205, thereby generating a strong shearing and mixing water flow, suitable for wastewater treatment requiring rapid mixing or strong agitation. A limiting block 2 1208 is installed inside the rotating cylinder 2 1203, and the main shaft 1209 is located on the outside... The device is equipped with two sets of telescopic components, which correspond to limit blocks 1207 and 1208. Each telescopic component includes a telescopic shell 1210 fixedly installed on the outside of the main shaft 1209. A spring 1212 is fixedly installed inside the telescopic shell 1210. A telescopic block 1211 is fixedly installed at the end of the spring 1212 away from the telescopic shell 1210. When the main shaft 1209 rotates to a specific angle, the telescopic block 1211 can pop out and engage with the corresponding limit block 1207 or limit block 1208, thereby transmitting the power of the drive motor 1100 to the corresponding rotating cylinder 1201 or rotating cylinder 1203 for rotation.By setting up a main shaft 1209, two sets of telescopic components 1210, spring 1212, telescopic block 1211, and rotating cylinder 1201 and rotating cylinder 2 1203 with different limit blocks 1207 and 1208, the same drive motor 1100 can independently drive and control the gentle fan blade 1202 and the rotating fan blade 1206 in different rotation directions. The strong aeration or strong stirring mode can be switched as needed according to the sewage treatment stage, which effectively reduces the energy consumption and manufacturing cost of the equipment.

[0023] In practical use, the operator first installs the mixing aeration device in the predetermined working position of the sewage treatment tank via the sliding rod 100, and starts the rotary motor 300. Its output end drives the screw rod 400 to rotate. The screw rod 400, through a threaded connection, drives the transmission plate 500 to smoothly rise and fall along the vertical direction of the support column. The transmission plate 500, through the transmission square rod 600, drives the square box 700 and all components below it to be immersed in the sewage to the preset depth. When the sewage treatment reaches a stage requiring enhanced aeration and oxygen supply, the operator starts the drive motor 1100 to rotate clockwise. The drive motor 1100 drives the main shaft 1209 to rotate clockwise. At this time, the upper telescopic component... The telescopic block 1211 extends outward under the elastic action of the spring 1212, engaging with the limiting block 1207 fixedly installed inside the rotating cylinder 1201. The main shaft 1209 transmits torque to the rotating cylinder 1201 through this engagement, driving the entire rotating cylinder 1201 to rotate clockwise. The gentle fan blade 1202 rotatably mounted on the outside of the rotating cylinder 1201 contacts the water, creating a gentle circulating water flow around it. This water flow helps to further disperse the tiny bubbles released by the aeration pipe 1000 and prolong their residence time in the water, significantly improving the oxygen mass transfer efficiency. It should be emphasized that in this rotation direction, the telescopic block 1211 in the lower telescopic assembly... 211 Because the rotation direction does not match the engagement surface of the limiting block 1208, the rotating cylinder 1203 cannot be driven to rotate, so the rotating fan blade 1206 remains stationary. At the same time, the clockwise rotation of the drive motor 1100 starts the aerator 900, causing the aerator 900 to automatically start and adjust to the high-efficiency output mode. Compressed air is continuously released into the sewage through the aeration pipe 1000, which is particularly suitable for the biochemical treatment stage during the peak activity period of aerobic microorganisms. The operator controls the drive motor 1100 to rotate counterclockwise, and the main shaft 1209 rotates counterclockwise. The telescopic block 1211 of the upper telescopic component cannot engage with the limiting block 1207, so the rotating cylinder 1201 does not rotate, and the gentle fan blade 120... 2. When the active movement stops, the telescopic block 1211 of the lower telescopic component engages with the limiting block 1208, causing the rotating cylinder 1203 to rotate counterclockwise. The fixed block 1204 rotates with the rotating cylinder 1203. The rotating fan blade 1206 rotates due to the resistance generated by the water body, and rotates on its own axis while revolving with the cylinder, thus forming a stirring water flow around it. This creates a strong circulation around the device, effectively preventing the sedimentation of suspended solids, but without excessive shearing of the bubbles. Along with the counterclockwise rotation of the drive motor 1100, the aerator 900 is closed simultaneously, and the air supply is stopped. This satisfies the mixing requirements of the anaerobic or sedimentation stage, while avoiding unnecessary energy consumption and interference of bubbles with the flocs.

[0024] Example 2, as Figure 7As shown, based on Embodiment 1, a stirring device 1300 for enhancing the stirring effect is assembled on the side of the fixed block 1204 away from the transmission rod 1205. The stirring device 1300 includes a driven rod 1301 fixedly installed on the side of the transmission rod 1205 away from the rotating fan blade 1206, a transmission gear 1304 disposed on the side of the fixed block 1204 away from the transmission rod 1205, and a hollow circular rack 1306 fixedly installed on the side of the fixed block 1204 away from the transmission rod 1205. The transmission gear 1301 and the hollow... The circular racks 1306 mesh with each other, effectively transmitting the rotational power received from the driven rod 1301 to the first transmission gear 1304. A second transmission gear 1302 is mounted on the left side of the driven rod 1301, meshing with the first transmission gear 1304. A rotating rod 1303 is fixedly mounted on the left side of the first transmission gear 1304, and a stirring blade 1305 is mounted on the left side of the rotating rod 1303. This allows the stirring blade 1305 to obtain efficient and stable drive, thereby achieving more intense and uniform mixing of the wastewater. By setting up a planetary gear transmission structure composed of the driven rod 1301, the second transmission gear 1302, the first transmission gear 1304, and the hollow circular racks 1306, the stirring blade 1305 rotates at high speed while revolving around the fixed block 1204, forming a composite motion trajectory. This significantly enhances the turbulence intensity and mixing uniformity of the wastewater, effectively eliminating the mixing dead zone.

[0025] In practical use, when enhanced stirring is required, the drive motor 1100 is controlled to rotate counterclockwise, causing the rotating cylinder 1203 to rotate. The fixed block 1204 is fixedly installed on the outside of the rotating cylinder 1203. As the rotating cylinder 1203 rotates, the rotating fan blade 1206 rotates due to the resistance of the water flow, causing the transmission rod 1205 to rotate. This rotation of the transmission rod 1205 drives the driven rod 1301 to rotate, which in turn drives the transmission gear 1302 to rotate. The transmission gear 1302 then drives the transmission gear 1304 to rotate. According to the planetary gear transmission principle, when the transmission gear 1304... While rotating, constrained by the hollow circular rack 1306, its rotation axis will revolve around the center of the main shaft 1209. This revolve motion is driven by the rotating rod 1303 to drive the stirring blade 1305 to achieve the revolve motion. Therefore, while the stirring blade 1305 revolves around the fixed block 1204, it is also rotating at high speed. This compound motion makes the trajectory of the stirring blade 1305 sweeping through the sewage present a complex inward and outward cycloidal shape. Compared with the single rotating fan blade 1206, the stirring blade 1305 can effectively destroy the stirring dead zone and strongly entrain the sediment at the bottom and corners of the pool, significantly improving the stirring effect of sewage with chemicals or residual activated sludge.

[0026] Example 3, as Figures 8-9As shown, based on Embodiment 1, a striking device 1400 for striking the aeration pipe 1000 is installed on the side of the rotating cylinder 1203 away from the drive motor 1100 to enhance its anti-clogging ability. The striking device 1400 includes a half-tooth gear 1401 fixedly installed on the side of the rotating cylinder 1203 away from the drive motor 1100, a circular platform 1402 rotatably installed on the right side of the rotating cylinder 1203, and a striking block 1406 fixedly installed on the front of the aeration pipe 1000 for receiving the vibration of the striking action. The circular platform 1402... An L-shaped mounting rod 1403 is fixedly installed on the front of component 2. A spring 1405 is fixedly installed on the right side of the L-shaped mounting rod 1403. A striking rod 1404 is fixedly installed on the side of the spring 1405 away from the L-shaped mounting rod 1403 for performing a striking action. The bottom of the striking rod 1404 has teeth. The striking rod 1404 meshes with the half-tooth gear 1401. The striking rod 1404 and the L-shaped mounting rod 1403 are slidably connected to ensure that the striking rod 1404 can only reciprocate in the horizontal direction under the constraint of the spring 1405. By setting up a half-tooth gear 1401, a second spring 1405, and a striking rod 1404, the intermittent meshing characteristic of the half-tooth gear 1401 drives the striking rod 1404 to periodically reciprocate and strike the striking block 1406 and the aeration pipe 1000, thereby promptly removing contaminants and crystalline scale adhering to the pipe wall, effectively preventing the aeration pipe 1000 from clogging, ensuring long-term stability of aeration efficiency, and extending the equipment maintenance cycle.

[0027] In practical use, the operator starts the drive motor 1100 and rotates it counterclockwise. The main shaft 1209 drives the rotating cylinder 1203 to rotate, which in turn drives the semi-gear 1401 to rotate. When the teeth of the semi-gear 1401 rotate to the position where they mesh with the bottom teeth of the striking rod 1404, the continuous rotation of the semi-gear 1401 pushes the striking rod 1404 along the L-shaped mounting rod 1403 away from the aeration pipe 1. The spring 1405 slides in a straight line in the direction of 000. During this process, the spring 1405 is gradually compressed, and its elastic potential energy accumulates. At the same time, the end of the striking rod 1404 gradually moves away from the striking block 1406 fixedly installed on the front of the aeration pipe 1000. As the half-tooth gear 1401 continues to rotate, when it enters the smooth arc segment without teeth, the meshing constraint between the teeth at the bottom of the striking rod 1404 and the half-tooth gear 1401 is suddenly released. At this moment, the spring 1405, which has been compressed to the extreme, is instantly released. The full elastic potential energy is released, driving the striking rod 1404 to move along the L-shaped mounting rod 1403 towards the aeration pipe 1000. The end of the striking rod 1404 strikes the striking block 1406, generating a crisp and high-intensity striking vibration. This vibration is directly transmitted to the pipe wall of the aeration pipe 1000 through the striking block 1406, causing the pipe wall to undergo instantaneous elastic deformation and high-frequency vibration waves. These vibration waves propagate rapidly along the pipe wall, effectively shaking off or loosening the material adhering to the aeration pipe 1000. Sticky contaminants on the inner and outer surfaces of the vent are removed. Subsequently, the half-tooth gear 1401 continues to rotate. When its tooth area approaches the striking rod 1404 again, the teeth will push the striking rod 1404 to overcome the elastic force of the second spring 1405 and retract, entering the next round of compression and energy storage stage. This cycle repeats. With the continuous rotation of the main shaft 1209, the striking rod 1404 periodically performs intermittent reciprocating motion, avoiding blockage of the aeration pipe 1000 and affecting the normal use of the device.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mixing aeration device for industrial wastewater treatment, comprising a square frame, sliding rods on both sides of the square frame, a rotary motor on the top of the square frame, a helical rod fixedly connected to the output end of the rotary motor, a transmission plate mounted on the upper side of the helical rod, a transmission square rod fixedly installed at the bottom of the transmission plate, a square box fixedly installed at the bottom of the transmission square rod, a partition fixedly installed inside the square box, an aerator fixedly installed on the top of the partition, an aerator fixedly connected to the output end of the aerator, a drive motor mounted at the bottom of the partition, and a rotating device mounted at the bottom of the square box, characterized in that… The rotating device includes a rotating cylinder 1 rotatably mounted at the bottom of a square box and a main shaft fixedly mounted at the output end of a drive motor. A gentle fan blade is rotatably mounted on the outer side of the rotating cylinder 1. A limit block 1 is provided inside the rotating cylinder 1. A rotating cylinder 2 is rotatably mounted at the bottom of the rotating cylinder 1. A fixing block is fixedly mounted on the outer side of the rotating cylinder 2. A transmission rod is rotatably mounted on the front of the fixing block. A rotating fan blade is assembled on the outer side of the transmission rod. A limit block 2 is provided on the inner side of the rotating cylinder 2. A telescopic component is assembled on the outer side of the main shaft.

2. The mixing aeration device for industrial wastewater treatment according to claim 1, characterized in that, The telescopic assembly includes a telescopic shell fixedly installed on the outside of the main shaft, a spring is fixedly installed inside the telescopic shell, and a telescopic block is fixedly installed at the end of the spring away from the telescopic shell.

3. The mixing aeration device for industrial wastewater treatment according to claim 2, characterized in that, The telescopic components are in two sets, and the two sets of telescopic components correspond to limit block one and limit block two.

4. The mixing aeration device for industrial wastewater treatment according to claim 3, characterized in that, The square frame is provided with a sliding support column inside, and the sliding support column is connected to the transmission plate through and in a sliding manner.

5. The mixing aeration device for industrial wastewater treatment according to claim 4, characterized in that, A stirring device for enhancing the stirring effect is installed on the side of the fixed block away from the transmission rod.

6. The mixing aeration device for industrial wastewater treatment according to claim 5, characterized in that, The stirring device includes a driven rod fixedly installed on the side of the transmission rod away from the rotating fan blade, a first transmission gear disposed on the side of the fixed block away from the transmission rod, and a hollow circular rack fixedly installed on the side of the fixed block away from the transmission rod. A second transmission gear is assembled on the left side of the driven rod, a rotating rod is fixedly installed on the left side of the first transmission gear, and a stirring blade is assembled on the left side of the rotating rod.

7. The mixing aeration device for industrial wastewater treatment according to claim 6, characterized in that, The second transmission gear meshes with the first transmission gear, and the first transmission gear meshes with the hollow circular rack.

8. The mixing aeration device for industrial wastewater treatment according to claim 7, characterized in that, The rotating cylinder 2 is equipped with a striking device for striking the aeration pipe on the side away from the drive motor.

9. The mixing aeration device for industrial wastewater treatment according to claim 8, characterized in that, The striking device includes a half-tooth gear fixedly installed on the side of the rotating cylinder two away from the drive motor, a circular platform rotatably installed on the right side of the rotating cylinder two, and a striking block fixedly installed on the front of the aeration pipe. An L-shaped mounting rod is fixedly installed on the front of the circular platform, a spring two is fixedly installed on the right side of the L-shaped mounting rod, and a striking rod is fixedly installed on the side of the spring two away from the L-shaped mounting rod.

10. The mixing aeration device for industrial wastewater treatment according to claim 9, characterized in that, The bottom of the striking rod has teeth, the striking rod meshes with a half-tooth gear, and the striking rod is slidably connected to the L-shaped mounting rod.

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