Ultrasonic sludge reduction device for sewage treatment

Abstract

The utility model discloses an ultrasonic sludge reduction device for sewage treatment, which comprises a rack as well as an auxiliary treatment pond and a main treatment pond which are mounted in the rack, an ultrasonic generator is arranged on one side of the main treatment pond, rectangular hollow grooves which are communicated with each other are formed in the outer walls of the opposite sides of the auxiliary treatment pond and the main treatment pond, and the rectangular hollow grooves are communicated with the ultrasonic generator. A screening net is slidably mounted at one end in the main treatment pond, one end of the screening net passes through the rectangular hollow groove and extends into the auxiliary treatment pond, and a machine shell is mounted on the outer wall of one side of the rack. According to the ultrasonic sludge reduction device disclosed by the utility model, the sludge is distributed more uniformly in the treatment tank through the interception of the screen and the linkage matching of the material turning paddle, so that ultrasonic waves can penetrate into a deep sludge part more smoothly, and the treatment effect of the ultrasonic sludge reduction device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an ultrasonic sludge reduction device for sewage treatment. Background Art

[0002] The ultrasonic sludge reduction device for sewage treatment achieves efficient treatment of sludge through ultrasonic technology. Its functions include breaking up sludge particles, promoting biodegradation, improving sludge concentration and reducing treatment costs. The structure of the device mainly includes an ultrasonic generator, a vibration probe, a control system and a reflector or a reflector. These components work together to achieve precise treatment of sludge. The structural principle is based on the vibration effect caused by ultrasonic waves when they propagate in the medium. Through the adjustment of the control system and the design of the reflector, it is ensured that ultrasonic waves produce the best effect in the sludge, that is, ultrasonic waves can generate high-frequency vibrations, which act on sludge particles, causing the formation and rupture of tiny cavities inside the particles. This helps to refine and crush sludge particles and improve the effectiveness of subsequent treatment. However, during the use of the current ultrasonic sludge reduction device, sewage and sludge enter the treatment tank together. As time goes by, the sludge gradually accumulates at the bottom of the tank to form a thicker sludge bottom layer, which limits the penetration depth of the ultrasonic wave. That is, the ultrasonic wave encounters resistance when propagating in the sludge medium. When the sludge bottom layer is thick, the ultrasonic wave energy may be absorbed or scattered, making it difficult to reach the deep layer of sludge, limiting its range of action. Utility Model Content

[0003] The purpose of the utility model is to provide an ultrasonic sludge reduction device for sewage treatment, which adds a sewage screening mechanism at the feed inlet of the treatment pool and links the sewage screening mechanism with the material turning structure at the bottom of the pool to avoid sludge accumulation at the bottom of the pool, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrasonic sludge reduction device for sewage treatment, comprising a frame and a secondary treatment tank and a main treatment tank installed inside the frame, an ultrasonic generator is arranged on one side of the main treatment tank, and rectangular hollow grooves that are interconnected are opened on the outer walls of the secondary treatment tank and the main treatment tank on the opposite side, a screen is slidably installed on one end of the main treatment tank, and one end of the screen passes through the rectangular hollow groove and extends to the inside of the secondary treatment tank, a casing is installed on the outer wall of one side of the frame, and a first transmission shaft, a second transmission shaft, and a stirring shaft distributed in a right-angled triangle structure are rotatably installed inside the casing, a gear reduction transmission structure is also arranged inside the casing, a reduction motor for driving the first transmission shaft to rotate is installed on the outer wall of one side of the casing, one end of the second transmission shaft extends to the inside of the main treatment tank and is provided with a cam vibration structure, and one end of the stirring shaft extends to the inside of the main treatment tank and is provided with a turning paddle for turning the sludge at the bottom of the tank.

[0005] Preferably, a drain valve is installed on the outer wall of the secondary treatment tank on the side away from the main treatment tank.

[0006] Preferably, the cam vibration structure consists of a cam unit, a vertical plate, and an arc-shaped long plate, the cam unit is fixed at the top end of the second transmission shaft, the vertical plate is fixed at the bottom end of the screen, the arc-shaped long plate is installed at the bottom end of the vertical plate, and the top end of the cam unit and the bottom end of the arc-shaped long plate are abutted against each other.

[0007] Preferably, a slide groove is provided on the inner wall of one side of the main treatment tank, and a U-shaped sliding block cooperating with the slide groove is installed on the outer wall of one side of the vertical plate.

[0008] Preferably, the stirring paddle comprises a central shaft fixed to the top end of the stirring shaft, and a plurality of protruding rods integrally formed on the outer surface of the central shaft, and an auxiliary paddle is fixed between two of the protruding rods on the same horizontal line.

[0009] Preferably, the gear reduction transmission structure includes an upper gear plate installed on one end of the surface of the first transmission shaft and the second transmission shaft, and a lower gear installed on one end of the surface of the stirring shaft, the two upper gear plates are meshed with each other, and the lower gear and one of the upper gear plates are meshed with each other.

[0010] Compared with the prior art, the beneficial effect of the utility model is that the ultrasonic sludge reduction device for sewage treatment forms a dynamic environment at the bottom of the pool through the turning paddle, which stirs and turns the sludge at the bottom of the pool to prevent the sludge from accumulating too much at the bottom of the pool, and the second transmission shaft makes the screen vibrate and screen back and forth in the vertical direction through the cam vibration structure, thereby intercepting larger solid particles, sludge and other impurities to prevent them from entering the treatment pool with the sewage, and through the interception of the screen and the linkage cooperation of the turning paddle, the sludge is more evenly distributed in the treatment pool, allowing the ultrasonic wave to penetrate more smoothly into the deep sludge part, thereby improving the treatment effect of the ultrasonic sludge reduction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the side cross-sectional structure of the casing of the utility model;

[0013] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0014] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0015] In the figure: 1. frame; 2. auxiliary treatment tank; 201. drain valve; 3. main treatment tank; 4. ultrasonic generator; 5. casing; 6. reduction motor; 601. first transmission shaft; 7. second transmission shaft; 701. cam unit; 702. vertical plate; 703. arc-shaped long plate; 8. stirring shaft; 9. gear reduction transmission structure; 10. screening screen; 11. turning paddle; 1101. middle shaft; 1102. convex rod; 1103. auxiliary paddle. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-4 The utility model provides an embodiment: an ultrasonic sludge reduction device for sewage treatment, comprising a frame 1 and a secondary treatment tank 2 and a main treatment tank 3 installed inside the frame 1, an ultrasonic generator 4 is arranged on one side of the main treatment tank 3, and rectangular hollow grooves communicating with each other are opened on the outer walls of the secondary treatment tank 2 and the main treatment tank 3 on the opposite side;

[0018] A screen 10 is slidably installed at one end of the main treatment tank 3. One end of the screen 10 passes through a rectangular hollow slot and extends to the inside of the auxiliary treatment tank 2. The sewage to be treated is injected into the main treatment tank 3, so that the sewage is continuously poured toward the screen 10. At this time, the screen 10 performs a preliminary screening of large particles of impurities in the sewage. Since the screen 10 itself has an inclined surface, large particles of sludge and impurities enter the auxiliary treatment tank 2 along the inclined surface;

[0019] A housing 5 is installed on the outer wall of one side of the frame 1, and a first transmission shaft 601, a second transmission shaft 7, and a stirring shaft 8 are rotatably installed inside the housing 5 and are distributed in a right-angled triangle structure. A gear reduction transmission structure 9 is also arranged inside the housing 5, and the gear reduction transmission structure 9 includes an upper gear plate installed at one end of the surface of the first transmission shaft 601 and the second transmission shaft 7, and a lower gear installed at one end of the surface of the stirring shaft 8, the two upper gear plates are meshed with each other, and the lower gear and one of the upper gear plates are meshed with each other;

[0020] A reduction motor 6 for driving the first transmission shaft 601 to rotate is installed on the outer wall of one side of the casing 5. The reduction motor 6 and the first transmission shaft 601 synchronously drive the second transmission shaft 7 and the stirring shaft 8 to rotate through the gear reduction transmission structure 9. One end of the second transmission shaft 7 extends to the interior of the main treatment tank 3 and is provided with a cam vibration structure. One end of the stirring shaft 8 extends to the interior of the main treatment tank 3 and is provided with a turning paddle 11 for turning the sludge at the bottom of the tank. The rotary power of the stirring shaft 8 is transmitted to the turning paddle 11, and the turning paddle 11 forms a dynamic environment at the bottom of the tank, which stirs and turns the sludge at the bottom of the tank.

[0021] A drain valve 201 is installed on the outer wall of the auxiliary treatment tank 2 away from the main treatment tank 3. The staff can actively discharge the sludge in the auxiliary treatment tank 2 through the drain valve 201.

[0022] The cam vibration structure is composed of a cam monomer 701, a vertical plate 702, and an arc-shaped long plate 703. The cam monomer 701 is fixed on the top of the second transmission shaft 7, the vertical plate 702 is fixed on the bottom of the screen 10, and the arc-shaped long plate 703 is installed on the bottom of the vertical plate 702. The top of the cam monomer 701 and the bottom of the arc-shaped long plate 703 abut against each other. The first transmission shaft 601 drives the second transmission shaft 7 to rotate through the gear reduction transmission structure 9. Then, the second transmission shaft 7 pushes the arc-shaped long plate 703, the vertical plate 702 and the screen 10 upward through the cam monomer 701, so that the impurities on the screen 10 enter the auxiliary treatment tank 2 along its own inclined surface. At this time, solid particles and large sludge particles are effectively intercepted before entering the treatment tank, reducing the formation of sludge at the bottom of the tank;

[0023] A slide groove is provided on the inner wall of one side of the main treatment pool 3, and a U-shaped slider that cooperates with the slide groove is installed on the outer wall of one side of the vertical plate 702, so that the lifting and sliding stability of the vertical plate 702 is improved by the slide groove and the U-shaped slider;

[0024] The stirring paddle 11 includes a central axis 1101 fixed to the top of the stirring shaft 8, and a plurality of protruding rods 1102 integrally formed on the outer surface of the central axis 1101, and an auxiliary paddle 1103 is fixed between two protruding rods 1102 on the same horizontal line. When the stirring shaft 8 rotates together with the first transmission shaft 601, the stirring shaft 8 drives the central axis 1101 to rotate together, so that the protruding rods 1102 and the auxiliary paddles 1103 continuously stir the sludge in the main treatment pool 3, and reduce the accumulation of sludge at the bottom of the pool and the stirring of sludge, thereby reducing the obstacles for ultrasonic waves to penetrate deep-seated sludge and improving the effect of ultrasonic waves.

[0025] When the embodiment of the present application is in use, the staff first injects the sewage to be treated into the main treatment tank 3, so that the sewage is continuously poured toward the screen 10. At this time, the screen 10 performs a preliminary screening of large particles of impurities in the sewage. Since the screen 10 itself has an inclined surface, large particles of sludge and impurities enter the secondary treatment tank 2 along the inclined surface. The staff turns on the ultrasonic generator 4 to work, and the ultrasonic generator 4 can generate high-frequency vibrations in the main treatment tank 3 through the vibration probe. The vibration probe is a medium for ultrasonic transmission, which guides ultrasonic vibrations into the sludge. This vibration acts on the sludge particles, resulting in the formation and rupture of tiny cavities inside the particles, which helps to refine and crush the sludge particles and improve the effect of subsequent treatment. At the same time, the staff turns on the reduction motor 6 to work, and the rotational power of the reduction motor 6 is transmitted to the first transmission shaft On 601, the first transmission shaft 601 synchronously drives the second transmission shaft 7 and the stirring shaft 8 to rotate through the gear reduction transmission structure 9, and then the rotational power of the stirring shaft 8 is transmitted to the turning paddle 11. The turning paddle 11 forms a dynamic environment at the bottom of the pool, which stirs and turns the sludge at the bottom of the pool to prevent the sludge from accumulating too much at the bottom of the pool. The second transmission shaft 7 makes the screen 10 vibrate and screen back and forth in the vertical direction through the cam vibration structure, so as to intercept larger solid particles, sludge and other impurities to prevent them from entering the treatment pool with the sewage. Through the interception of the screen 10 and the linkage cooperation of the turning paddle 11, the sludge is more evenly distributed in the treatment pool, allowing the ultrasonic wave to penetrate more smoothly into the deep sludge part, thereby improving the treatment effect of the ultrasonic sludge reduction device and ensuring that the sludge in the sewage is treated more comprehensively and evenly.

Claims

1. An ultrasonic sludge reduction device for sewage treatment, characterized in that: The invention comprises a frame (1) and a secondary treatment pool (2) and a main treatment pool (3) installed inside the frame (1); an ultrasonic generator (4) is arranged on one side of the main treatment pool (3); mutually connected rectangular hollow grooves are provided on the outer walls of the secondary treatment pool (2) and the main treatment pool (3) on the opposite sides; a sieve (10) is slidably installed on one end of the inside of the main treatment pool (3); one end of the sieve (10) passes through the rectangular hollow groove and extends to the inside of the secondary treatment pool (2); a housing (5) is installed on the outer wall of one side of the frame (1); the inside of the housing (5) A first transmission shaft (601), a second transmission shaft (7), and a stirring shaft (8) are rotatably mounted and arranged in a right-angled triangle structure. A gear reduction transmission structure (9) is also arranged inside the housing (5). A reduction motor (6) for driving the first transmission shaft (601) to rotate is mounted on the outer wall of one side of the housing (5). One end of the second transmission shaft (7) extends to the interior of the main treatment tank (3) and is provided with a cam vibration structure. One end of the stirring shaft (8) extends to the interior of the main treatment tank (3) and is provided with a turning paddle (11) for turning the sludge at the bottom of the tank.

2. The ultrasonic sludge reduction device for sewage treatment according to claim 1, characterized in that: A sewage valve (201) is installed on the outer wall of the secondary treatment tank (2) on a side away from the main treatment tank (3).

3. The ultrasonic sludge reduction device for sewage treatment according to claim 1, characterized in that: The cam vibration structure is composed of a cam unit (701), a vertical plate (702), and an arc-shaped long plate (703); the cam unit (701) is fixed to the top end of the second transmission shaft (7); the vertical plate (702) is fixed to the bottom end of the sieve (10); the arc-shaped long plate (703) is installed at the bottom end of the vertical plate (702); the top end of the cam unit (701) and the bottom end of the arc-shaped long plate (703) are in contact with each other.

4. The ultrasonic sludge reduction device for sewage treatment according to claim 3 is characterized in that: A slide groove is provided on the inner wall of one side of the main treatment pool (3), and a U-shaped sliding block cooperating with the slide groove is installed on the outer wall of one side of the vertical plate (702).

5. The ultrasonic sludge reduction device for sewage treatment according to claim 1, characterized in that: The stirring paddle (11) comprises a central shaft (1101) fixed to the top end of the stirring shaft (8), and a plurality of protruding rods (1102) integrally formed on the outer surface of the central shaft (1101), and an auxiliary paddle (1103) is fixed between two protruding rods (1102) on the same horizontal line.

6. The ultrasonic sludge reduction device for sewage treatment according to claim 1, characterized in that: The gear reduction transmission structure (9) comprises an upper gear plate mounted on one end of the surface of the first transmission shaft (601) and the second transmission shaft (7), and a lower gear mounted on one end of the surface of the stirring shaft (8), the two upper gear plates meshing with each other, and the lower gear and one of the upper gear plates meshing with each other.

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