Submersible stirring device for sewage treatment

Abstract

The utility model relates to sewage treatment technical field, concretely relates to a sewage treatment is with submersible mixing device, and the output shaft of pneumatic cylinder is fixedly connected between the lateral wall of frame body and the one side of connecting plate, the bottom fixed connection of connecting plate has the bearing frame, and the inside rotation of bearing frame is connected with winding rod, and the pull rope is connected with winding on the winding rod, and the outer wall one side of bearing frame is fixedly connected with drive motor through bolt, and the one end of winding rod penetrates the lateral wall of bearing frame and drive motor output shaft drive connection, realized the automatic lift control of agitator rod, makes equipment can according to the different depth requirement of sewage treatment pond flexible dive to target position and carry out efficient stirring, avoided the problem of stirring dead angle that traditional equipment caused because of unable to go deep or need manual hoisting, obviously promoted the stirring uniformity and mixing efficiency, through the linkage structure between pneumatic cylinder and connecting plate, bearing frame, realized the lateral movement adjustment of stirring area.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a submersible mixing device for wastewater treatment. Background Technology

[0002] Wastewater treatment is a crucial link in modern urban environmental governance and water resource recycling, widely applied in industrial wastewater treatment, domestic sewage treatment, and aquatic ecological restoration. Its core objective is to remove harmful components such as suspended solids, organic pollutants, and nitrogen and phosphorus nutrients from wastewater through physical, chemical, or biological means, thereby achieving water purification and compliant discharge. In the wastewater treatment process, mixing is a vital step in improving reaction efficiency, primarily used to promote thorough mixing of wastewater and reagents, maintain sludge suspension, prevent sedimentation, and enhance microbial degradation efficiency. Especially in typical treatment processes such as activated sludge processes, oxidation ditches, and anaerobic digestion, the mixing effect directly affects the operational stability and treatment efficiency of the entire system.

[0003] For example, utility model patent CN219376321U discloses a high-efficiency stirring device for sewage treatment, belonging to the technical field of sewage treatment equipment. This stirring device includes a base platform, with an L-shaped mounting plate fixedly connected to the top of the base platform. A side receiving box is fixedly connected to one outer surface of the L-shaped mounting plate, and a protrusion is rotatably connected between the side receiving box and the L-shaped mounting plate. A transmission block slides through the L-shaped mounting plate. The device uses the rotating protrusion to drive the transmission block to move up and down, causing the filter box and stirring box to continuously shake up and down. This allows sewage to pass through the filter screen and enter the stirring box more quickly, while simultaneously causing the stirring components to agitate the sewage, thereby improving the mixing efficiency and uniformity of the sewage and chemicals, resulting in high overall stirring efficiency.

[0004] However, many shortcomings still exist in practical applications. Specifically, most existing sewage treatment mixing equipment adopts fixed or surface mixing methods, lacking an effective submersible adjustment structure. This prevents the equipment from flexibly submerging according to the actual depth of the sewage treatment tank and the mixing requirements, making it difficult to adapt to the mixing requirements of different depth areas. Furthermore, due to the lack of a reliable lifting control mechanism, operators often need to manually disassemble or use external hoisting equipment to adjust the mixing position, which not only increases labor intensity but also reduces work efficiency. Additionally, uneven mixing can easily create local dead zones, affecting the overall sewage treatment effect. Therefore, to address these shortcomings of existing technologies, there is an urgent need to provide an innovative submersible mixing device for sewage treatment. Utility Model Content

[0005] The purpose of this utility model is to provide a submersible mixing device for sewage treatment, which solves the problem that most existing sewage treatment mixing equipment adopts a fixed or surface mixing method and lacks an effective submersible adjustment structure, resulting in the equipment being unable to flexibly submerge according to the actual depth of the sewage treatment tank and the mixing requirements, and is difficult to adapt to the mixing requirements of different depth areas.

[0006] To achieve the above objectives, this utility model provides a submersible mixing device for sewage treatment, including a frame, a connecting plate slidably connected to the inner side of the frame, and a cylinder fixedly connected to one side of the outer wall of the frame by bolts.

[0007] The cylinder's output shaft is fixedly connected to one side of the connecting plate through the side wall of the frame. A bearing frame is fixedly connected to the bottom of the connecting plate, and a winding rod is rotatably connected to the inner side of the bearing frame. A pull rope is wound around the winding rod, and a drive motor is fixedly connected to one side of the outer wall of the bearing frame by bolts. One end of the winding rod passes through the side wall of the bearing frame and is connected to the output shaft of the drive motor. The bottom of the frame is provided with a bottom frame, and one end of the pull rope is fixedly connected to the bottom inner side of the bottom frame. A waterproof motor is fixedly connected to the inner side of the bottom frame by bolts, and an agitator is rotatably connected to the bottom of the bottom frame. The top end of the agitator passes through the bottom of the bottom frame and is connected to the output shaft of the waterproof motor.

[0008] The bottom of the connecting plate is fixedly connected to a slider, and the slider is slidably connected to the bottom of the inner side of the frame through a groove. The bottom of the slider is fixedly connected to the top of the support frame.

[0009] One end of the winding rod is rotatably connected to the inner wall of the bearing frame via a rotating shaft, and the other end of the winding rod passes through the side wall of the bearing frame via a bearing sleeve. The top end of the stirring rod passes through the bottom of the bottom frame via a bearing sleeve.

[0010] Each of the four corners at the bottom of the load-bearing frame is fixedly connected to a pulley, and each of the four pulleys is fixedly connected to an elastic band, with the bottom ends of the four elastic bands fixedly connected to the top of the bottom frame.

[0011] The frame has mounting plates fixedly connected to both sides of its bottom, and the two mounting plates are symmetrically distributed along the center of the frame.

[0012] The cylinder's output shaft is connected to the frame via a sliding connection. Slide rods are fixedly connected to both sides of the inner side of the frame, and a sliding sleeve is fitted on one end of each slide rod. One side of each sliding sleeve is fixedly connected to one side of the connecting plate.

[0013] This utility model discloses a submersible mixing device for wastewater treatment. Through the coordinated arrangement of a drive motor, a winding rod, a pull rope, and a base frame, it achieves automatic lifting control of the stirring rod. This allows the device to flexibly submerge to the target location according to different depth requirements of the wastewater treatment tank for efficient mixing, avoiding the mixing dead zones caused by traditional equipment that cannot reach deep areas or requires manual hoisting. This significantly improves mixing uniformity and efficiency. The linkage structure between the cylinder, connecting plate, and support frame enables lateral movement adjustment of the mixing area, further enhancing the device's applicability and flexibility under complex working conditions and meeting the process requirements of multi-point and zoned mixing. Furthermore, the modular design of the base frame, connected to the waterproof motor with bolts, facilitates daily maintenance and component replacement, improving the device's maintainability and service life. Simultaneously, the device uses the frame as an overall support structure, combined with the sliding connection of the connecting plate and support frame, improving the stability and guidance during operation and reducing the risk of displacement due to vibration. The combination of the waterproof motor and stirring rod allows for stable underwater operation, ensuring the continuity and reliability of the mixing process, effectively preventing sludge sedimentation, and improving wastewater treatment efficiency. It not only effectively solves the technical bottlenecks of traditional mixing equipment such as inconvenient mixing depth adjustment, poor adaptability, and complex operation, but also comprehensively optimizes multiple dimensions such as mixing uniformity, coverage, and automated control. It can better meet the development needs of modern sewage treatment systems for efficient, energy-saving, and intelligent operation, and has good prospects for promotion and application as well as social and economic benefits. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall main view structure of an embodiment of this utility model.

[0016] Figure 2 This is a top view of an embodiment of the present invention.

[0017] Figure 3 This is a bottom view of the structure of an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the support frame and its structure according to an embodiment of the present utility model.

[0019] Figure 5 This is a schematic diagram of the stirring rod structure according to an embodiment of the present invention.

[0020] 1. Frame; 2. Mounting plate; 3. Connecting plate; 4. Slider; 5. Slide groove; 6. Sliding sleeve; 7. Sliding rod; 8. Cylinder; 9. Bearing frame; 10. Winding rod; 11. Drive motor; 12. Pulley; 13. Elastic belt; 14. Base frame; 15. Pull rope; 16. Waterproof motor; 17. Agitator rod. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please see Figure 1-5 .

[0023] A submersible mixing device for sewage treatment includes a frame 1, a connecting plate 3 slidably connected to the inner side of the frame 1, and a cylinder 8 fixedly connected to one side of the outer wall of the frame 1 by bolts.

[0024] The output shaft of cylinder 8 is fixedly connected to one side of connecting plate 3 through the side wall of frame 1. A bearing frame 9 is fixedly connected to the bottom of connecting plate 3, and a winding rod 10 is rotatably connected to the inner side of bearing frame 9. A pull rope 15 is wound around the winding rod 10. A drive motor 11 is fixedly connected to one side of the outer wall of bearing frame 9 by bolts. One end of the winding rod 10 passes through the side wall of bearing frame 9 and is connected to the output shaft of drive motor 11. A bottom frame 14 is provided at the bottom of frame 1, and one end of pull rope 15 is fixedly connected to the bottom inner side of bottom frame 14. A waterproof motor 16 is fixedly connected to the inner side of bottom frame 14 by bolts. An agitator 17 is rotatably connected to the bottom of bottom frame 14, and the top end of agitator 17 passes through the bottom of bottom frame 14 and is connected to the output shaft of waterproof motor 16.

[0025] In the actual use of the submersible mixing device for sewage treatment, the operator first fixes the frame 1 of the overall structure to the top two sides of the sewage treatment tank to ensure that the equipment has a stable supporting foundation. Then, the drive motor 11 is started. The motor is connected to the winding rod 10 inside the support frame 9 through the output shaft. Under the drive of the motor, the winding rod 10 is rotated, and the pull rope 15 wound on it is released or wound up. One end of the pull rope 15 is fixedly connected to the bottom inside of the bottom frame 14. Therefore, when the pull rope 15 is released, the bottom frame 14 will move down, so that the waterproof motor 16 fixed by bolts in the bottom frame 14 and the stirring rod 17 connected to its output shaft will gradually sink into the sewage, realizing submersible mixing operation. At the same time, in order to achieve flexible adjustment of the mixing position, the device is also equipped with a cylinder 8, whose outer wall is fixedly connected to one side of the frame 1 by bolts. The output shaft passes through the side wall of the frame 1 and is fixedly connected to one side of the connecting plate 3. The connecting plate 3 is slidably connected to the inside of the frame 1, and its bottom is fixedly connected to the support frame 9. Therefore, under the action of the cylinder 8, the connecting plate 3 can slide horizontally along the frame 1, driving the support frame 9 and the bottom frame 14 to move laterally, thereby adjusting the specific stirring area of ​​the stirring rod 17 in the water tank and improving the stirring coverage and flexibility. Throughout the process, the operator can control the running time and speed of the drive motor 11 according to the actual processing needs to precisely control the lowering depth of the bottom frame 14, and combine it with the lateral adjustment function of the cylinder 8 to achieve precise stirring operations at different depths and in different areas.

[0026] Furthermore, a slider 4 is fixedly connected to the bottom of the connecting plate 3, and the slider 4 is slidably connected to the inner bottom of the frame 1 through a sliding groove 5. The bottom of the slider 4 is fixedly connected to the top of the support frame 9. This structure enables the connecting plate 3 to have good guidance and running stability when sliding along the frame 1 under the drive of the cylinder 8, preventing offset or jamming caused by uneven sliding, thereby improving the moving accuracy of the connecting plate 3 and the overall running stability of the equipment.

[0027] Furthermore, one end of the winding rod 10 is rotatably connected to the inner wall of the support frame 9 via a rotating shaft, and the other end of the winding rod 10 passes through the side wall of the support frame 9 via a bearing sleeve. The top end of the agitator rod 17 passes through the bottom of the bottom frame 14 via a bearing sleeve. This structure ensures that the winding rod 10 has good rotational freedom and sealing protection performance during high-speed rotation, while maintaining a stable output torque for the agitator rod 17 during underwater operation, reducing mechanical losses caused by vibration, thereby improving transmission efficiency and equipment operational reliability.

[0028] Furthermore, pulleys 12 are fixedly connected to the four corners of the bottom of the support frame 9, and elastic bands 13 are fixedly connected to each of the four pulleys 12. The bottom ends of the four elastic bands 13 are fixedly connected to the top of the bottom frame 14. In this structure, as the bottom frame 14 descends with the pull rope 15, the pulleys 12 reduce the frictional resistance between the bottom frame 14 and the support frame 9, improving the smoothness of lifting; the elastic bands 13 act as a buffer, preventing structural damage due to sudden stops or impacts, thereby enhancing the stability of the lifting system and extending its service life.

[0029] Furthermore, mounting plates 2 are fixedly connected to both sides of the bottom of the frame 1, and the two mounting plates 2 are symmetrically distributed along the center of the frame 1. This structure is used to firmly install the entire device onto the top edge of the sewage treatment tank, ensuring the overall stability and anti-overturning ability of the equipment during operation. At the same time, the symmetrical design improves the balance and uniformity of stress during installation, thereby enhancing the reliability of equipment installation and its ability to adapt to different tank structures.

[0030] Furthermore, the connection between the output shaft of cylinder 8 and frame 1 is a sliding connection. Slide rods 7 are fixedly connected to both inner sides of frame 1, and sliding sleeves 6 are fitted onto one end of each slide rod 7. One side of each sliding sleeve 6 is fixedly connected to one side of connecting plate 3. This structure further enhances the horizontal guiding and supporting capacity of connecting plate 3, allowing it to slide more smoothly back and forth under the push of cylinder 8, improving adjustment accuracy and operational smoothness, thereby optimizing lateral displacement control and improving operational convenience.

[0031] In summary:

[0032] In the complete technical solution of the submersible mixing device for sewage treatment, the entire equipment uses a frame 1 as the overall support structure. A connecting plate 3 is slidably connected to the inner side of the frame 1, and a sliding cooperation is achieved through a slider 4 and a sliding groove 5 to ensure smooth and stable movement of the connecting plate 3 in the horizontal direction. A bearing frame 9 is fixedly connected to the bottom of the connecting plate 3. The inner side of the bearing frame 9 is rotatably connected to a winding rod 10 via a rotating shaft, and a drive motor 11 is fixedly connected to one side of its outer wall via bolts. The output shaft of the drive motor 11 is connected to one end of the winding rod 10 through a bearing sleeve passing through the side wall of the bearing frame 9, thereby achieving rotational control of the winding rod 10. A pull rope 15 is wound around the winding rod 10. One end of the pull rope 15 is fixedly connected to the inner bottom of the base frame 14. The base frame 14 forms a flexible connection structure with the bearing frame 9 through pulleys 12 and elastic bands 13 located at four corners. The pulleys 12 reduce frictional resistance during lifting and improve smooth operation; the elastic bands 13 act as a buffer to prevent mechanical damage caused by sudden stops or impacts, improving the stability and service life of the lifting system. A waterproof motor 16 is bolted inside the base frame 14. Its output shaft is connected to the top of the stirring rod 17 via a bearing sleeve passing through the bottom of the base frame 14, ensuring stable underwater operation of the stirring rod 17 for efficient stirring. During operation, the drive motor 11 is started to rotate the winding rod 10, releasing or retracting the pull rope 15, thereby controlling the submersion depth of the base frame 14 and the stirring rod 17 to achieve precise stirring in different depth areas. To achieve flexible adjustment of the lateral position, a cylinder 8 is bolted to one side of the outer wall of the frame 1. Its output shaft is fixedly connected to one side of the connecting plate 3 and is slidably connected to the frame 1. At the same time, sliding rods 7 are fixedly connected to both sides of the inner side of the frame 1. Sliding sleeves 6 are fitted on the sliding rods 7, and one side of the sliding sleeves 6 is fixedly connected to the connecting plate 3, further enhancing the horizontal guiding ability and operational stability of the connecting plate 3. Therefore, driven by cylinder 8, connecting plate 3 can slide back and forth along frame 1, causing bearing frame 9 and bottom frame 14 to shift laterally, thereby adjusting the specific stirring position of stirring rod 17 and expanding the stirring coverage area. In addition, mounting plates 2 are fixedly connected to both sides of the bottom of frame 1. The two mounting plates 2 are symmetrically distributed along the center of frame 1, which facilitates the firm installation of the entire device on the top edge of the sewage treatment tank, ensuring the stability and anti-overturning ability of the overall structure during operation and improving the equipment's ability to adapt to different tank structures. Through the linkage design between drive motor 11, winding rod 10, pull rope 15 and bottom frame 14, automatic lifting control of stirring rod 17 is realized, enabling the equipment to flexibly dive into the target position for efficient stirring according to the different depth requirements of the sewage treatment tank. This avoids the stirring dead zone problem caused by traditional equipment that cannot reach deep enough or requires manual hoisting, significantly improving stirring uniformity and mixing efficiency.The cooperation between cylinder 8, slide rod 7, and sliding sleeve 6 enhances the horizontal guiding and supporting capacity of connecting plate 3, allowing it to slide more smoothly back and forth under the push of cylinder 8. This improves adjustment accuracy and operational smoothness, thereby optimizing lateral displacement control and ease of operation. The slider 4 and slide groove 5 further improve the sliding accuracy and operational stability of connecting plate 3, preventing deviation or jamming. The combined structure of pulley 12 and elastic belt 13 at the bottom of bearing frame 9 effectively reduces friction during the lifting and lowering of bottom frame 14 and provides buffer protection, extending the service life of the equipment. The connection methods between winding rod 10 and rotating shaft, bearing sleeve, and agitator rod 17 and bearing sleeve ensure the freedom of rotation and sealing performance of rotating components, improving transmission efficiency and underwater operational reliability.

[0033] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A submersible mixing device for wastewater treatment, comprising a frame, characterized in that, It also includes a connecting plate that slides on the inner side of the frame, and a cylinder that is fixedly connected to one side of the outer wall of the frame by bolts; The output shaft of the cylinder is fixedly connected to one side of the connecting plate through the side wall of the frame. A bearing frame is fixedly connected to the bottom of the connecting plate, and a winding rod is rotatably connected to the inner side of the bearing frame. A pull rope is wound around the winding rod, and a drive motor is fixedly connected to one side of the outer wall of the bearing frame by bolts. One end of the winding rod passes through the side wall of the bearing frame and is driven by the output shaft of the drive motor. The bottom of the frame is provided with a bottom frame, and one end of the pull rope is fixedly connected to the bottom inner side of the bottom frame. A waterproof motor is fixedly connected to the inner side of the bottom frame by bolts, and an agitator is rotatably connected to the bottom of the bottom frame. The top end of the agitator passes through the bottom of the bottom frame and is driven by the output shaft of the waterproof motor.

2. The submersible mixing device for wastewater treatment as described in claim 1, characterized in that, The bottom of the connecting plate is fixedly connected to a slider, and the slider is slidably connected to the bottom of the inner side of the frame through a sliding groove. The bottom of the slider is fixedly connected to the top of the supporting frame.

3. The submersible mixing device for wastewater treatment as described in claim 1, characterized in that, One end of the winding rod is rotatably connected to the inner wall of the support frame via a rotating shaft, and the other end of the winding rod passes through the side wall of the support frame via a bearing sleeve. The top end of the stirring rod passes through the bottom of the bottom frame via a bearing sleeve.

4. The submersible mixing device for wastewater treatment as described in claim 1, characterized in that, Each of the four corners at the bottom of the support frame is fixedly connected to a pulley, and each of the four pulleys is fixedly connected to an elastic band, with the bottom end of each of the four elastic bands fixedly connected to the top of the bottom frame.

5. The submersible mixing device for wastewater treatment as described in claim 1, characterized in that, Mounting plates are fixedly connected to both sides of the bottom of the frame, and the two mounting plates are symmetrically distributed along the center of the frame.

6. The submersible mixing device for wastewater treatment as described in claim 1, characterized in that, The connection between the output shaft of the cylinder and the frame is a sliding connection. Both sides of the inner side of the frame are fixedly connected to sliding rods, and one end of each sliding rod is fitted with a sliding sleeve. One side of each sliding sleeve is fixedly connected to one side of the connecting plate.

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