Ultrasonic coupling sludge treatment apparatus

Abstract

The utility model relates to the technical field of sludge treatment, solves the problem of insufficient stability of sludge treatment equipment and poor separation treatment effect, and specifically discloses an ultrasonic coupling sludge treatment equipment, which comprises a sedimentation separation tank, a sludge ultrasonic treatment assembly and a flow guide structure, the flow guide structure is arranged inside the sedimentation separation tank, the sludge ultrasonic treatment assembly comprises an ultrasonic vibration plate and an ultrasonic generator, the ultrasonic vibration plate is uniformly arranged with multiple groups on the inner side wall of the sedimentation separation tank along the height direction of the sedimentation separation tank, each group of ultrasonic vibration plates is symmetrically installed on the inner side wall of the sedimentation separation tank, the ultrasonic generator is externally arranged on the outer side wall of the sedimentation separation tank and is connected with the ultrasonic vibration plate through a cable, and the flow guide structure comprises a spiral flow guide plate, the spiral flow guide plate is arranged at a sludge feeding port, and uniformly distributed flow guide holes are formed in the spiral flow guide plate. The utility model is used for the equipment for treating sludge by ultrasonic coupling, has good treatment effect and high stability.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, and in particular to an ultrasonic coupling sludge treatment device. Background Technology

[0002] In sludge treatment equipment, the solid-liquid separation process often employs sedimentation tanks, plate and frame filter presses, and centrifugal separators. Sedimentation tanks typically include a tank body, inlet pipe, outlet pipe, and bottom sludge discharge structure, and some are equipped with simple sludge scraping devices. Plate and frame filter presses mainly consist of filter plates, filter frames, a pressing mechanism, and a feeding system. Centrifugal separators consist of a rotating drum, a drive unit, a feed inlet, and a sludge discharge outlet, achieving separation through high-speed rotation.

[0003] The aforementioned equipment has significant limitations in practical applications. Sedimentation tanks rely on natural settling, which is slow and contains a large number of suspended particles in the liquid, resulting in poor separation. Plate and frame filter presses are costly and prone to frequent maintenance due to filter cloth clogging, affecting continuous operation. Centrifuges have high energy consumption, low separation efficiency for fine sludge particles, and generate significant vibration and noise during operation, making them difficult to connect stably with subsequent processing units and unable to meet the needs of automated continuous production. Utility Model Content

[0004] To address the problems of insufficient stability and poor separation and treatment effect of existing sludge treatment equipment, this utility model provides an ultrasonic coupling sludge treatment device.

[0005] The technical solution adopted in this utility model is:

[0006] An ultrasonic coupling sludge treatment device includes a sedimentation separation tank, a sludge ultrasonic treatment component, and a flow guiding structure, wherein the flow guiding structure is disposed inside the sedimentation separation tank;

[0007] The sludge ultrasonic treatment component includes an ultrasonic plate and an ultrasonic generator. Multiple sets of ultrasonic plates are evenly arranged on the inner wall of the sedimentation separation tank along the height direction of the sedimentation separation tank. Each set of ultrasonic plates is symmetrically installed on the inner wall of the sedimentation separation tank. The ultrasonic generator is placed on the outer wall of the sedimentation separation tank and connected to the ultrasonic plate via a cable.

[0008] The flow guiding structure includes a spiral flow guiding plate, which is located at the sludge inlet and has uniformly distributed flow guiding holes.

[0009] The sludge ultrasonic treatment component is used to transmit ultrasonic waves generated by an ultrasonic generator into the sludge through an ultrasonic transducer, and the flow guiding structure is used to guide the sludge to a sedimentation and separation tank.

[0010] Furthermore, the sedimentation separation tank is equipped with a separation hopper, which is a conical structure that is wider at the top and narrower at the bottom. The upper part of the sedimentation separation tank is provided with a sludge inlet, and the lower part of the sedimentation separation tank is provided with a conical sludge collection hopper that communicates with the separation hopper. The bottom of the conical sludge collection hopper is connected to a sludge discharge pipe. The separation hopper is used to collect solid waste separated by the ultrasonic sludge treatment component through the conical structure.

[0011] Furthermore, one end of the liquid output pipe is connected to the upper part of the sedimentation separation tank, and the other end of the liquid output pipe is equipped with a buffer tank. A buffer level switch is installed in the buffer tank, and a delivery pump is connected to the bottom of the buffer tank. The output end of the delivery pump is connected to the feed inlet of the stirring mechanism. The buffer level switch is used to monitor the liquid level in the buffer tank and send a liquid level signal to the sludge treatment equipment.

[0012] Furthermore, the stirring mechanism includes a housing and a stirring shaft. The stirring shaft is disposed inside the housing. A main stirring blade is disposed at the end of the stirring shaft. An auxiliary stirring blade is connected to the stirring shaft. The main stirring blade is disposed with multiple main stirring blades. The auxiliary stirring blade is disposed with multiple auxiliary stirring blades. The main stirring blades and auxiliary stirring blades are arranged in an alternating manner around the stirring shaft.

[0013] The device housing has a first ultrasonic transducer array on its inner wall and a second ultrasonic transducer array on its auxiliary stirring blade. The first ultrasonic transducer array is evenly distributed around the stirring shaft of the device. The first ultrasonic transducer array is used to generate ultrasonic waves that are transmitted in a fixed direction by setting them in a fixed position. The second ultrasonic transducer array is used to generate ultrasonic waves that are transmitted around the stirring shaft by following the movement of the auxiliary stirring blade.

[0014] Furthermore, the stirring shaft is connected to the output shaft of a drive motor via a coupling. The drive motor is a servo motor and is located on the top of the equipment housing. An elastic buffer seat is connected between the drive motor and the equipment housing to absorb the vibration transmitted from the drive motor to the equipment housing.

[0015] Furthermore, a guide tube is connected between the stirring shaft and the auxiliary stirring blade. The guide tube is sleeved on the stirring shaft and located at the central axis of the guide tube. The guide tube has a cylindrical structure, and multiple honeycomb-shaped through holes are opened on the tube wall. The honeycomb structure is used to allow sewage to enter and exit during the rotation of the guide tube, forming an internal and external circulation.

[0016] The beneficial effects of this utility model are:

[0017] This invention relates to an ultrasonic-coupled sludge treatment device that achieves a highly efficient and stable sludge treatment process through the combination of a flow-guiding structure and ultrasonic treatment components. During operation, the sludge enters through the inlet and first contacts the spiral guide plate. It is then diverted through evenly distributed guide holes on the plate and, guided by the spiral structure, diffuses evenly along a preset path into the sedimentation separation tank, avoiding uneven settling caused by concentrated sludge accumulation. At this point, the ultrasonic generator activates, and the generated ultrasonic waves are transmitted to the sludge through multiple sets of symmetrical ultrasonic vibrating plates evenly arranged along the height of the sedimentation separation tank. The ultrasonic waves generate high-frequency vibrations in the sludge medium, which on the one hand breaks the binding force between sludge particles, promoting the aggregation of fine particles into larger flocs and increasing the settling velocity; on the other hand, it disrupts the colloidal structure of the sludge, enhancing the solid-liquid separation effect and solving the problem of low separation efficiency of centrifuges for fine particles. Compared to existing technologies, this equipment does not rely on natural sedimentation or high-energy-consuming high-speed rotation, and it does not suffer from filter cloth clogging. It can achieve continuous and stable operation, meeting the needs of automated production, while simultaneously improving separation efficiency and treatment quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the sludge treatment equipment of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the sedimentation separation tank of this utility model;

[0020] Figure 3 This is a schematic diagram of the spiral guide plate structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the stirring mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the stirring shaft in the stirring mechanism of this utility model;

[0023] Figure 6 This is a schematic diagram of the distribution structure of the main stirring blades and the auxiliary stirring blades of this utility model.

[0024] Figure label:

[0025] 1-Equipment casing, 2-Agitator shaft, 3-Main agitator, 4-Main agitator blade, 5-Secondary agitator blade, 6-First ultrasonic transducer array, 7-Second ultrasonic transducer array, 8-Drive motor, 9-Elastic buffer seat, 10-Sedimentation separation tank, 11-Ultrasonic vibrating plate, 12-Guide cylinder, 13-Honeycomb through hole, 14-Ultrasonic generator, 15-Spiral guide plate, 16-Guide hole, 17-Separation hopper, 18-Sludge inlet, 19-Conical sludge collection hopper, 20-Sludge discharge pipe, 21-Buffer tank, 22-Buffer level switch, 23-Transfer pump. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] An ultrasonic-coupled sludge treatment device, such as Figures 1-3 As shown, the system includes a sedimentation separation tank 10, a sludge ultrasonic treatment component, and a flow guiding structure. The flow guiding structure is located inside the sedimentation separation tank 10. The sludge ultrasonic treatment component includes an ultrasonic transducer plate 11 and an ultrasonic generator 14. Multiple sets of ultrasonic transducer plates 11 are evenly arranged on the inner wall of the sedimentation separation tank 10 along the height direction of the sedimentation separation tank 10. Each set of ultrasonic transducer plates 11 is symmetrically installed on the inner wall of the sedimentation separation tank 10. The ultrasonic generator 14 is located on the outer wall of the sedimentation separation tank 10 and is connected to the ultrasonic transducer plate 11 via a cable. The flow guiding structure includes a spiral guide plate 15, which is located at the sludge inlet 18. The spiral guide plate 15 has evenly distributed flow guiding holes 16. The sludge ultrasonic treatment component is used to transmit ultrasonic waves generated by the ultrasonic generator 14 to the sludge through the ultrasonic transducer plate 11. The flow guiding structure is used to guide the sludge to the sedimentation separation tank 10.

[0029] In this embodiment, the ultrasonic-coupled sludge treatment equipment operates by introducing sludge into the sedimentation and separation tank 10 through the inlet. The sludge first passes through the spiral guide plate 15, whose uniformly spaced guide holes 16 divert and guide the sludge, ensuring its even distribution within the sedimentation and separation tank 10 along a pre-defined path and preventing localized accumulation. Simultaneously, the signal generated by the ultrasonic generator 14 is transmitted via cable to the ultrasonic transducers mounted on each set of ultrasonic vibrating plates 11, converting the electrical signal into mechanical vibrations to generate ultrasonic waves. Because the ultrasonic vibrating plates 11 are uniformly arranged along the height of the sedimentation and separation tank 10 and symmetrically installed on the sidewalls, ultrasonic waves can be transmitted to the sludge from different heights and directions. Utilizing the cavitation effect and mechanical vibration of the ultrasonic waves, the colloidal structure in the sludge is disrupted, promoting the dispersion of sludge particles and the breaking down of flocs, thereby improving subsequent separation efficiency. This structure, with its spiral guide plate 15, ensures sufficient contact between the sludge and the ultrasonic waves. The multiple symmetrically arranged ultrasonic vibrating plates 11 enhance the uniformity and intensity of the ultrasonic waves, improving the overall treatment effect. Furthermore, the equipment has a compact structure and is easy to maintain. During implementation, it is important to ensure that the installation angle of the ultrasonic transducer plate 11 is symmetrical and consistent to ensure uniform distribution of ultrasonic energy. The size and spacing of the guide holes 16 on the spiral guide plate 15 should be adapted according to the sludge flow rate and properties to avoid the guide effect being weakened due to excessively large holes or the blockage caused by excessively small holes. At the same time, the cable connection between the ultrasonic generator 14 and the ultrasonic transducer plate 11 should be firmly sealed to prevent the sludge environment from corroding the circuit or causing short circuits that affect the operation of the equipment.

[0030] Example 2

[0031] This embodiment is based on the foregoing embodiments. In this embodiment, as follows: Figure 1 , Figure 2 As shown, a separation hopper 17 is provided inside the sedimentation separation tank 10. The separation hopper 17 has a conical structure that is wider at the top and narrower at the bottom. A sludge inlet 18 is provided at the upper part of the sedimentation separation tank 10, and a conical sludge collection hopper 19 connected to the separation hopper 17 is provided at the lower part of the sedimentation separation tank 10. A sludge discharge pipe 20 is connected to the bottom of the conical sludge collection hopper 19. The separation hopper 17 is used to collect solid waste separated by the action of the sludge ultrasonic treatment component through the conical structure.

[0032] In this embodiment, during the operation of the sedimentation separation tank 10, the sludge treated by ultrasound enters the upper part of the tank, where solid waste settles downwards under the influence of gravity and water flow. Because the separation hopper 17 adopts a conical structure that is wider at the top and narrower at the bottom, when the sludge flows through the separation hopper 17, the conical sidewalls guide the flowing sludge, causing the solid waste to gather towards the center of the separation hopper 17 under the combined action of centrifugal force and gravity. It then settles into the conical sludge collection hopper 19, which is connected to the separation hopper 17, and is finally discharged through the sludge discharge pipe 20 at the bottom of the sludge collection hopper. This process utilizes fluid dynamics to reduce the settling path of solid waste, accelerate the aggregation speed, and improve separation efficiency. This structure, through the cooperation of the separation hopper 17 and the conical sludge collection hopper 19, significantly improves the collection effect of solid waste, reduces the residue of solid waste in the sedimentation separation tank 10, and lowers subsequent cleaning costs.

[0033] Example 3

[0034] This embodiment is based on the foregoing embodiments. In this embodiment, as follows: Figure 1 As shown, one end of the liquid output pipe is connected to the upper part of the sedimentation separation tank 10, and the other end of the liquid output pipe is equipped with a buffer tank 21. A buffer level switch 22 is installed inside the buffer tank 21. A transfer pump 23 is connected to the bottom of the buffer tank 21, and the output end of the transfer pump 23 is connected to the feed inlet of the stirring mechanism. The buffer level switch 22 is used to monitor the liquid level in the buffer tank 21 and send a liquid level signal to the sludge treatment equipment.

[0035] The liquid separated in the sedimentation and separation tank 10 enters the buffer tank 21 from the top through the liquid output pipe. The buffer tank 21 serves as a temporary storage and pressure stabilizer for the liquid. A buffer level switch 22 inside the buffer tank 21 monitors the liquid level in real time. When the liquid level reaches the preset upper limit, the switch sends a signal to start the transfer pump 23, which transports the liquid from the bottom of the buffer tank 21 to the inlet of the stirring mechanism. When the liquid level drops to the preset lower limit, the switch sends a signal to stop the transfer pump 23, preventing it from running dry. This structure controls the liquid transport through the signal feedback from the buffer level switch 22. Specifically, it uses changes in the liquid level signal to trigger the start and stop of the transfer pump 23, ensuring that the liquid level in the buffer tank 21 is maintained within a reasonable range. This mechanism achieves automated management of liquid transport, avoiding errors that may occur during manual operation. Simultaneously, the buffer tank 21 balances fluctuations in the liquid output flow, ensuring a stable amount of liquid entering the stirring mechanism, which is beneficial for the smooth operation of subsequent processing steps.

[0036] Example 4

[0037] This embodiment is based on the foregoing embodiments. In this embodiment, as follows: Figures 4-6 As shown, the stirring mechanism includes a housing 1 and a stirring shaft 2. The stirring shaft 2 is located inside the housing 1. A main stirring paddle 3 is provided at the end of the stirring shaft 2. An auxiliary stirring paddle is connected to the stirring shaft 2. Multiple main stirring blades 4 are provided on the main stirring paddle 3. Multiple auxiliary stirring blades 5 are provided on the auxiliary stirring paddle. The main stirring blades 4 and the auxiliary stirring blades 5 are arranged in an alternating manner around the stirring shaft 2.

[0038] The inner wall of the equipment housing 1 is provided with a first ultrasonic transducer array 6, and the auxiliary stirring blade 5 is provided with a second ultrasonic transducer array 7. The first ultrasonic transducer array 6 is evenly distributed around the stirring shaft 2 of the equipment. The first ultrasonic transducer array 6 is used to generate ultrasonic waves that are transmitted in a fixed direction by setting them in a fixed position. The second ultrasonic transducer array 7 is used to generate ultrasonic waves that are transmitted around the stirring shaft 2 by following the movement of the auxiliary stirring blade 5.

[0039] In a preferred embodiment, the stirring shaft 2 is connected to the output shaft of the drive motor 8 via a coupling. The drive motor 8 is a servo motor and is located on the top of the equipment housing 1. An elastic buffer seat 9 is connected between the drive motor 8 and the equipment housing 1. The elastic buffer seat 9 is used to absorb the vibration transmitted from the drive motor 8 to the equipment housing 1.

[0040] In a preferred embodiment, a guide tube 12 is also connected between the stirring shaft 2 and the auxiliary stirring blade. The guide tube 12 is sleeved on the stirring shaft 2 and located at the central axis of the guide tube 12. The guide tube 12 has a cylindrical structure, and multiple honeycomb-shaped through holes 13 are opened on the wall of the guide tube 12. The honeycomb structure is used to allow sewage to enter and exit during the rotation of the guide tube 12, forming an internal and external circulation.

[0041] In this embodiment, when the stirring mechanism is working, the drive motor 8 drives the stirring shaft 2 to rotate via a coupling. The main stirring blade 3 and the auxiliary stirring blade rotate accordingly. Because the main stirring blade 4 and the auxiliary stirring blade 5 are staggered around the stirring shaft 2, they can perform multi-directional shearing and mixing of the material inside the equipment shell 1 during rotation, improving the uniformity of stirring. At the same time, the first ultrasonic transducer array 6 on the inner wall of the equipment shell 1 generates ultrasonic waves in a fixed direction, and the second ultrasonic transducer array 7 on the auxiliary stirring blade 5 moves with the blades, generating ultrasonic waves around the stirring shaft 2. The two ultrasonic waves superimpose on each other in the material, and the cavitation effect and mechanical vibration are used to further enhance the processing of the material. The vibration generated by the drive motor 8 during operation is absorbed by the elastic buffer seat 9, reducing the transmission to the equipment shell 1. The guide cylinder 12 rotates with the stirring shaft 2, and the honeycomb-shaped through holes 13 on its cylinder wall cause the internal sewage to form an internal and external circulation flow under the action of pressure difference, promoting the overall circulation and mixing of the material in the equipment. The beneficial effects of this structure are that the staggered mixing blades and the dual ultrasonic transducer array work together to ensure sufficient mixing of materials, expand the range and intensity of ultrasonic waves, and improve processing efficiency; the elastic buffer seat 9 reduces vibration and noise during equipment operation and extends the service life of the equipment; the circulation effect of the guide tube 12 enhances the fluidity of materials, avoids local stagnation, and further improves the processing effect.

[0042] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An ultrasonic-coupled sludge treatment device, characterized in that, It includes a sedimentation separation tank, a sludge ultrasonic treatment component, and a flow guiding structure, wherein the flow guiding structure is disposed inside the sedimentation separation tank; The sludge ultrasonic treatment component includes an ultrasonic plate and an ultrasonic generator. Multiple sets of ultrasonic plates are evenly arranged on the inner wall of the sedimentation separation tank along the height direction of the sedimentation separation tank. Each set of ultrasonic plates is symmetrically installed on the inner wall of the sedimentation separation tank. The ultrasonic generator is placed on the outer wall of the sedimentation separation tank and connected to the ultrasonic plate via a cable. The flow guiding structure includes a spiral flow guiding plate, which is located at the sludge inlet and has uniformly distributed flow guiding holes. The sludge ultrasonic treatment component is used to transmit ultrasonic waves generated by an ultrasonic generator into the sludge through an ultrasonic transducer, and the flow guiding structure is used to guide the sludge to a sedimentation and separation tank.

2. The ultrasonic coupling sludge treatment device according to claim 1, characterized in that, The sedimentation separation tank is equipped with a separation hopper, which is a conical structure that is wider at the top and narrower at the bottom. The upper part of the sedimentation separation tank is equipped with a sludge inlet, and the lower part of the sedimentation separation tank is equipped with a conical sludge collection hopper that communicates with the separation hopper. The bottom of the conical sludge collection hopper is connected to a sludge discharge pipe. The separation hopper is used to collect solid waste separated by the ultrasonic sludge treatment component through the conical structure.

3. The ultrasonic coupling sludge treatment device according to claim 1, characterized in that, The sedimentation separation tank is connected to one end of a liquid output pipe at the top, and a buffer tank is provided at the other end of the liquid output pipe. A buffer level switch is installed in the buffer tank, and a delivery pump is connected to the bottom of the buffer tank. The output end of the delivery pump is connected to the feed inlet of the stirring mechanism. The buffer level switch is used to monitor the liquid level in the buffer tank and send a liquid level signal to the sludge treatment equipment.

4. The ultrasonic coupling sludge treatment device according to claim 3, characterized in that, The stirring mechanism includes a housing and a stirring shaft. The stirring shaft is disposed inside the housing. A main stirring blade is disposed at the end of the stirring shaft. An auxiliary stirring blade is connected to the stirring shaft. The main stirring blade is disposed with multiple main stirring blades. The auxiliary stirring blade is disposed with multiple auxiliary stirring blades. The main stirring blades and auxiliary stirring blades are arranged in an alternating manner around the stirring shaft. The device housing has a first ultrasonic transducer array on its inner wall and a second ultrasonic transducer array on its auxiliary stirring blade. The first ultrasonic transducer array is evenly distributed around the stirring shaft of the device. The first ultrasonic transducer array is used to generate ultrasonic waves that are transmitted in a fixed direction by setting them in a fixed position. The second ultrasonic transducer array is used to generate ultrasonic waves that are transmitted around the stirring shaft by following the movement of the auxiliary stirring blade.

5. The ultrasonic coupling sludge treatment device according to claim 4, characterized in that, The stirring shaft is connected to the output shaft of a drive motor via a coupling. The drive motor is a servo motor and is located on the top of the equipment housing. An elastic buffer seat is connected between the drive motor and the equipment housing to absorb the vibration transmitted from the drive motor to the equipment housing.

6. The ultrasonic coupling sludge treatment device according to claim 4, characterized in that, A guide tube is also connected between the stirring shaft and the auxiliary stirring blade. The guide tube is sleeved on the stirring shaft and located at the central axis of the guide tube. The guide tube has a cylindrical structure and multiple honeycomb-shaped through holes are opened on the tube wall. The honeycomb structure is used to allow sewage to enter and exit during the rotation of the guide tube, forming an internal and external circulation.

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