Wet wall breaking device based on ultrasonic cavitation technology

Abstract

The utility model relates to the technical field of material processing, and discloses a wet wall breaking device based on ultrasonic cavitation technology, which comprises a device shell and damping feet respectively positioned at four corners of the bottom end of the device shell, an electric cabinet is mounted outside the device shell, a primary grinding system is mounted on one side of the interior of the device shell in an embedded manner, and a secondary grinding system is mounted on the other side of the interior of the device shell. The ultrasonic cavitation system is installed at one end of the primary grinding system, the wall breaking grinding system is installed at one end of the ultrasonic cavitation system, and the screening system is installed at one end of the wall breaking grinding system. Materials entering the feeding hopper are crushed in advance through the pre-crushing cutter, and then are subjected to primary grinding and ultrasonic wall-breaking cavitation; then finely grinding, dispersing and screening; the device has high wall breaking ratio and cavitation strength, so that efficient, high-quality, large-batch and continuous fluid wall breaking of materials is achieved, and meanwhile, the problems of insufficient fineness, large loss and component loss of a traditional mechanical crushing mode are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of material processing, in particular to a wet wall breaking device based on ultrasonic cavitation technology. Background Art

[0002] In our life and work, we often need to crush materials, such as the processing of traditional Chinese medicine and food raw materials, in order to reduce the size of materials, change the shape of materials, improve material quality, increase specific surface area, promote uniform mixing, improve fluidity, and improve physical properties; this requires the use of material crushing equipment.

[0003] Traditional material crushing equipment usually adopts mechanical crushing method. For some hard or tough materials, this method has low crushing efficiency and is likely to cause thermal denaturation of the materials, affecting subsequent processes. For some high-value materials, such as Chinese herbal medicines and food raw materials, the crushing and wall breaking requirements are high, and traditional crushing equipment may not be able to meet the requirements of wall breaking rate, crushing fineness and efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a wet wall breaking device based on ultrasonic cavitation technology to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wet wall breaking device based on ultrasonic cavitation technology comprises a device shell and shock-absorbing feet respectively located at the four corners of the bottom end of the device shell, an electric control box is installed on the outside of the device shell, a primary grinding system is embedded and installed on one side of the inside of the device shell, an ultrasonic cavitation system is installed on one end of the primary grinding system, a wall breaking mill system is installed on one end of the ultrasonic cavitation system, and a screening system is installed on one end of the wall breaking mill system; the primary grinding system comprises a primary grinding system bracket fixed inside the device shell, a motor is fixedly installed at the lower end of the primary grinding system bracket, and a primary grinding crushing chamber is arranged at the upper end of the primary grinding system bracket, the upper end of the primary grinding crushing chamber is located at the upper end of the device shell and is fixedly connected to a feed hopper, and a primary grinding pipeline assembly is fixedly connected to the lower end of one side of the primary grinding crushing chamber, a primary grinding static grinding head and a primary grinding dynamic grinding head are arranged inside the primary grinding crushing chamber, and a pre-crushing knife is arranged between the feed hopper and the primary grinding crushing chamber.

[0007] As a further solution of the utility model: a plurality of self-cleaning nozzles are installed on the primary grinding system, the ultrasonic cavitation system and the wall-breaking grinding system, and the plurality of self-cleaning nozzles are connected to external high-pressure water through self-cleaning pipes.

[0008] As a further solution of the utility model: the primary grinding static grinding head is fixed inside the primary grinding crushing chamber, the primary grinding dynamic grinding head and the pre-crushing knife are fixedly connected to the output end of the motor through the rotating shaft at the same time, and the primary grinding dynamic grinding head is located on the inner side of the primary grinding static grinding head.

[0009] As a further solution of the utility model: the ultrasonic cavitation system includes a cavitation box connected to the primary grinding system, a cavitation pipe is arranged on the lower side of one end of the cavitation box, and an ultrasonic generator is embedded and installed at the upper end of the inner side of the cavitation box, a radiation surface is arranged at the lower end of the ultrasonic generator, and a reflection surface is arranged on the inner side of the cavitation box corresponding to the radiation surface, and a cavitation space is formed between the cavitation box, the ultrasonic generator, the radiation surface and the reflection surface.

[0010] As a further solution of the utility model: the wall-breaking mill system includes a storage hopper connected to the ultrasonic cavitation system, and a driving motor fixedly installed inside the device casing, the lower end of the storage hopper is provided with a wall-breaking mill crushing chamber, and the lower end of one side of the wall-breaking mill crushing chamber is fixedly connected with a wall-breaking mill discharge pipe, the interior of the wall-breaking mill crushing chamber is provided with a wall-breaking mill static grinding head and a wall-breaking mill dynamic grinding head, the output end of the driving motor is fixedly connected with a driving wheel, the outer side of the driving wheel is provided with a conveyor belt, and the inner side of the conveyor belt is provided with a driven wheel at the end away from the driving wheel.

[0011] As a further solution of the utility model: the middle part of the driven wheel is fixedly connected to the dynamic grinding head of the wall-breaking mill through a connecting shaft, and the connecting shaft is installed inside the crushing chamber of the wall-breaking mill through a bearing, the static grinding head of the wall-breaking mill is fixed inside the crushing chamber of the wall-breaking mill, and the dynamic grinding head of the wall-breaking mill is located on the inner side of the static grinding head of the wall-breaking mill.

[0012] As a further solution of the utility model: the screening system includes a screening box connected to the wall-breaking mill system, and a screening motor fixedly mounted on the screening box, the output end of the screening motor is fixedly connected with a screening blade, one end of the screening box is fixedly connected with a coarse pulp outlet, and a discharge port is fixedly connected to one side of the lower end of the screening box, a screen is installed inside the screening box, a coarse pulp outlet is fixedly connected with a coarse pulp return pipe, the discharge port, the coarse pulp outlet and the coarse pulp return pipe are all equipped with pipeline valves, and the screening blades are located above the inside of the screen.

[0013] The device can be widely used in the wall breaking and cavitation treatment of high-value materials such as traditional Chinese medicine and food raw materials, and can fully expose the nutrients in Chinese herbal medicine that are not easily absorbed by the human body, further improve the efficacy of the medicine, facilitate human absorption, and enhance the medicinal effect of Chinese herbal medicine on the human body, which has high practical value and application value. At the same time, the device of the present invention is easy to process, easy to assemble, and low in cost.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model firstly crushes the material entering the feed hopper by a pre-crushing knife, and then performs preliminary grinding and ultrasonic wall-breaking cavitation; and then obtains wet-wall-broken material slurry through fine grinding, dispersion and screening; the device has a high wall-breaking rate ratio and cavitation intensity, and can be used for the crushing and pulping of animal and plant tissues, cells, bacteria, and spore-forming bacteria in processing fluids, realizes comprehensive refinement and wall-breaking of hard, soft or tough materials, and achieves efficient, high-quality, large-volume and continuous fluid wall breaking, while avoiding the problems of insufficient fineness, large loss and component loss in traditional mechanical pulverization methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of a wet wall breaking device based on ultrasonic cavitation technology;

[0017] Figure 2 It is a cross-sectional schematic diagram of a wet wall breaking device based on ultrasonic cavitation technology;

[0018] Figure 3 It is a schematic diagram of the structure of a pre-breaking knife in a wet wall breaking device based on ultrasonic cavitation technology;

[0019] Figure 4 It is a structural schematic diagram of a static grinding head for initial grinding in a wet wall breaking device based on ultrasonic cavitation technology;

[0020] Figure 5 It is a structural schematic diagram of a dynamic grinding head for initial grinding in a wet wall breaking device based on ultrasonic cavitation technology;

[0021] Figure 6 It is a schematic diagram of the main view of an ultrasonic cavitation system in a wet wall breaking device based on ultrasonic cavitation technology;

[0022] Figure 7 It is a side view schematic diagram of an ultrasonic cavitation system in a wet wall breaking device based on ultrasonic cavitation technology;

[0023] Figure 8 It is a schematic diagram of the structure of a static grinding head of a wall-breaking mill in a wet wall-breaking device based on ultrasonic cavitation technology;

[0024] Fig. 9 It is a schematic diagram of the structure of a dynamic grinding head of a wall-breaking mill in a wet wall-breaking device based on ultrasonic cavitation technology;

[0025] Fig.10 It is a schematic diagram of the main view of the screening system in a wet wall breaking device based on ultrasonic cavitation technology.

[0026] In the figure: 1. Primary grinding system; 11. Feed hopper; 12. Pre-crushing knife; 13. Primary grinding system bracket; 14. Motor; 15. Primary grinding static grinding head; 16. Primary grinding dynamic grinding head; 17. Primary grinding pipeline assembly; 2. Ultrasonic cavitation system; 21. Ultrasonic generator; 22. Radiation surface; 23. Reflection surface; 24. Cavitation space; 25. Cavitation pipeline; 3. Wall-breaking grinding system; 31. Storage hopper; 32. Wall-breaking static grinding head; 33. Dynamic grinding head of wall-breaking mill; 34. Driving motor; 35. Driving wheel; 36. Driven wheel; 37. Conveyor belt; 38. Discharge pipe of wall-breaking mill; 4. Screening system; 41. Screen; 42. Screening motor; 43. Screening blades; 44. Discharge port; 45. Coarse pulp outlet; 46. Coarse pulp return pipe; 47. Pipeline valve; 5. Self-cleaning nozzle; 51. Self-cleaning pipeline; 6. Electric control box; 7. Shock-absorbing feet; 8. Device casing. DETAILED DESCRIPTION

[0027] See also Figures 1 to 10 In the embodiment of the utility model, a wet wall breaking device based on ultrasonic cavitation technology comprises a device housing 8, and shock-absorbing feet 7 respectively located at the four corners of the bottom end of the device housing 8, an electric control box 6 is installed on the outside of the device housing 8, and a primary grinding system 1 is embedded and installed on one side of the inside of the device housing 8, an ultrasonic cavitation system 2 is installed at one end of the primary grinding system 1, a wall-breaking mill system 3 is installed at one end of the ultrasonic cavitation system 2, and a screening system 4 is installed at one end of the wall-breaking mill system 3, and the electric control box 6 is connected with the primary grinding system 1, the ultrasonic cavitation system 2, the wall-breaking mill system 3 and the screening system 4 through a connecting line, and the opening and closing and operation of the primary grinding system 1, the ultrasonic cavitation system 2, the wall-breaking mill system 3 and the screening system 4 are controlled by the electric control box 6;

[0028] exist Figure 2 , Figure 6 , Figure 7 and Fig.10 In the process, a plurality of self-cleaning nozzles 5 are installed on the primary grinding system 1, the ultrasonic cavitation system 2 and the wall-breaking mill system 3. The plurality of self-cleaning nozzles 5 are connected to the external high-pressure water through the self-cleaning pipe 51. After the wet wall-breaking device completes the material crushing operation, the high-pressure water is turned on. After the high-pressure water enters the self-cleaning pipe 51, it is sprayed into the primary grinding system 1, the ultrasonic cavitation system 2 and the wall-breaking mill system 3 from the self-cleaning nozzles 5 respectively, and then flows out from the screening system 4, so as to clean the primary grinding system 1, the ultrasonic cavitation system 2, the wall-breaking mill system 3 and the screening system 4.

[0029] exist Figure 2 , Figure 3 , Figure 4 and Figure 5In the embodiment, the primary grinding system 1 includes a primary grinding system bracket 13 fixed inside the device housing 8, a motor 14 is fixedly installed at the lower end of the primary grinding system bracket 13, and a primary grinding chamber is arranged at the upper end of the primary grinding system bracket 13, the upper end of the primary grinding chamber is located at the upper end of the device housing 8 and is fixedly connected with a feed hopper 11, and a primary grinding pipeline assembly 17 is fixedly connected at the lower end of one side of the primary grinding chamber, a primary grinding static grinding head 15 and a primary grinding dynamic grinding head 16 are arranged inside the primary grinding chamber, a pre-crushing knife 12 is arranged between the feed hopper 11 and the primary grinding chamber, the primary grinding static grinding head 15 is fixed inside the primary grinding chamber, the primary grinding dynamic grinding head 16 and the pre-crushing knife 12 are fixedly connected to the output end of the motor 14 through a rotating shaft at the same time, and the primary grinding dynamic grinding head 16 is fixedly connected to the output end of the motor 14 through a rotating shaft. Located on the inner side of the primary static grinding head 15; the inner contour of the primary static grinding head 15 matches the outer contour of the primary dynamic grinding head 16, and a gap for material crushing is left between the contours, so that the material can enter between the primary dynamic grinding head 16 and the primary static grinding head 15; the motor 14 drives the primary dynamic grinding head 16 and the pre-crushing knife 12 to rotate at high speed at the same time, and the pre-crushing knife 12 first crushes and stirs the material put into the feed hopper 11, and then the primary static grinding head 15 and the primary dynamic grinding head 16 cooperate with each other to perform preliminary grinding on the material between the primary dynamic grinding head 16 and the primary static grinding head 15; the material after preliminary grinding enters the ultrasonic cavitation system 2 through the primary grinding pipeline assembly 17.

[0030] Preferably, the inner side of the initial grinding static grinding head 15 and the outer side of the initial grinding dynamic grinding head 16 are respectively engraved with three different depths of grooves from top to bottom, such as Figure 5 As shown in the middle A area, B area and C area, the knife grooves at the upper and lower ends are both trapezoidal notches, such as Figure 5 As shown in the middle A and C areas, this shape of the knife groove will not block the material in the knife groove during grinding; the middle knife groove is arranged crosswise, such as Figure 5 As shown in area B in the middle, this shape of tool groove has good grinding effect.

[0031] Preferably, the pre-crushing knife 12 is fixedly connected to the output shaft of the motor 14 by bolts.

[0032] Preferably, the pre-crushing knife 12 has 2 to 6 blades, and the number of blades is an even number.

[0033] exist Figure 2 , Figure 6 and Figure 7In the figure, the ultrasonic cavitation system 2 includes a cavitation box connected to the primary grinding system 1, a cavitation pipe 25 is provided on the lower side of one end of the cavitation box, and an ultrasonic generator 21 is embedded and installed at the upper end of the inner side of the cavitation box, a radiation surface 22 is provided at the lower end of the ultrasonic generator 21, and a reflection surface 23 is provided on the inner side of the cavitation box corresponding to the radiation surface 22, and a cavitation space 24 is formed between the cavitation box, the ultrasonic generator 21, the radiation surface 22 and the reflection surface 23; the cavitation box is connected to the primary grinding pipeline assembly 17, so that the material after preliminary grinding flows into the cavitation space 24 through the primary grinding pipeline assembly 17 and forms a slurry thin layer, and high-frequency ultrasonic waves are generated by the ultrasonic generator 21, and the high-frequency ultrasonic waves enter the cavitation space 24 and form a cavitation field in the slurry thin layer, and then the high-frequency ultrasonic waves are mutually reflected by the radiation surface 22 and the reflection surface 23, so that the high-frequency ultrasonic waves are reflected and superimposed multiple times in the cavitation space 24, so that the material cells in the slurry are broken and cavitated.

[0034] Preferably, the vertical distance between the radiation surface 22 and the reflection surface 23 is 8-15 mm.

[0035] Preferably, the frequency of the ultrasonic generator 21 is 28 kHz to 40 kHz.

[0036] Preferably, the radiation surface 22 and the reflection surface 23 can be straight plates or curved plates, as long as they are arranged relative to each other.

[0037] Preferably, the ultrasonic cavitation system 2 further comprises a fixing and adjusting assembly for fixing and adjusting the height of the ultrasonic generator 21, and adjusting the height of the ultrasonic generator 21 to adjust the vertical distance between the radiation surface 22 and the reflection surface 23 inside the cavitation space 24, thereby adjusting the thickness of the slurry thin layer.

[0038] Preferably, the ultrasonic cavitation system 2 further includes an anti-no-load component for automatically disconnecting the power supply of the ultrasonic generator 21 when the liquid in the cavitation space 24 is less than a preset liquid amount.

[0039] exist Figure 2 , Figure 8 and Fig. 9In the invention, the wall-breaking mill system 3 includes a storage hopper 31 connected to the ultrasonic cavitation system 2, and a driving motor 34 fixedly installed inside the device housing 8, a wall-breaking mill crushing chamber is arranged at the lower end of the storage hopper 31, and a wall-breaking mill discharge pipe 38 is fixedly connected to the lower end of one side of the wall-breaking mill crushing chamber, a wall-breaking mill static grinding head 32 and a wall-breaking mill dynamic grinding head 33 are arranged inside the wall-breaking mill crushing chamber, a driving wheel 35 is fixedly connected to the output end of the driving motor 34, a conveyor belt 37 is arranged on the outer side of the driving wheel 35, a driven wheel 36 is arranged on the inner side of the conveyor belt 37 away from the driving wheel 35, the middle part of the driven wheel 36 is fixedly connected to the wall-breaking mill dynamic grinding head 33 through a connecting shaft, and the connecting shaft is installed inside the wall-breaking mill crushing chamber through a bearing, and the connecting shaft and the wall-breaking mill dynamic grinding head 33 can rotate stably together through the bearing. ; The static grinding head 32 of the wall-breaking mill is fixed inside the wall-breaking mill crushing chamber, and the dynamic grinding head 33 of the wall-breaking mill is located on the inner side of the static grinding head 32 of the wall-breaking mill; the inner contour of the static grinding head 32 of the wall-breaking mill matches the outer contour of the dynamic grinding head 33 of the wall-breaking mill, and a gap for material crushing is left between the contours; the storage hopper 31 is connected to the cavitation pipe 25, so that the material after ultrasonic cavitation enters the storage hopper 31 and then enters the wall-breaking mill crushing chamber; the driving motor 34 drives the driving wheel 35, the conveyor belt 37 and the driven wheel 36 to rotate at high speed together, and the driven wheel 36 drives the dynamic grinding head 33 of the wall-breaking mill to rotate at high speed through the connecting shaft, and the material is wall-broken and ground through the mutual cooperation between the dynamic grinding head 33 of the wall-breaking mill and the static grinding head 32 of the wall-breaking mill, and the material after wall-breaking and grinding enters the screening system 4 through the wall-breaking mill discharge pipe 38.

[0040] Preferably, the inner side of the static grinding head 32 of the wall-breaking mill and the outer side of the dynamic grinding head 33 of the wall-breaking mill are respectively engraved with three different depths of knife grooves from top to bottom, such as Fig. 9 As shown in the middle D area, E area and F area, the knife grooves at the upper and lower ends are both trapezoidal notches, such as Fig. 9 As shown in the middle D and F areas, this shape of the knife groove will not block the material in the knife groove during grinding, and it is easier to clean the knife groove; the middle knife groove is arranged crosswise, such as Fig. 9 As shown in area E in the middle, this shape of tool groove has good grinding effect.

[0041] exist Figure 2 and Fig.10In the embodiment, the screening system 4 includes a screening box connected to the wall-breaking mill system 3, and a screening motor 42 fixedly installed on the screening box, the output end of the screening motor 42 is fixedly connected with a screening blade 43, one end of the screening box is fixedly connected with a coarse pulp outlet 45, and a discharge port 44 is fixedly connected to one side of the lower end of the screening box, a screen 41 is installed inside the screening box, a coarse pulp return pipe 46 is fixedly connected to the coarse pulp outlet 45, and pipeline valves 47 are installed on the discharge port 44, the coarse pulp outlet 45 and the coarse pulp return pipe 46, and the screening blade 43 is located inside the screen 41. Above the coarse pulp, one end of the coarse pulp return pipe 46 is connected to the storage hopper 31; the screening blades 43 are driven to rotate at high speed by the screening motor 42, and the screening blades 43 stir the slurry in the screening box; when the pipeline valve 47 on the discharge port 44 is opened, a part of the fine slurry is filtered by the screen 41 and flows out from the discharge port 44; when the coarse pulp return pipe 46 or the pipeline valve 47 on the coarse pulp outlet 45 is opened, the other part of the coarse pulp that cannot pass through the screen 41 flows back to the storage hopper 31 through the coarse pulp return pipe 46 to break the wall again, or is directly discharged through the coarse pulp outlet 45.

[0042] Preferably, the mesh density of the screen 41 is set according to the processing requirements, and the distance between the screen 41 and the lower part of the screening box is 5 to 10 centimeters according to the processing volume.

[0043] The working principle of the utility model is as follows: when it is necessary to crush the material, first, the motor 14 is turned on, and the motor 14 drives the primary grinding dynamic grinding head 16 and the pre-crushing knife 12 to rotate at high speed; then the material to be crushed is added to the feed hopper 11, and the pre-crushing knife 12 first crushes and stirs and disperses the material put into the feed hopper 11, and the material enters the primary grinding chamber after being crushed and dispersed, and then the primary grinding static grinding head 15 and the primary grinding dynamic grinding head 16 cooperate with each other to grind the material preliminarily; the material after the preliminary grinding enters the cavitation box through the primary grinding pipeline assembly 17; and a slurry thin layer is formed in the cavitation space 24 in the cavitation box;

[0044] Next, the ultrasonic generator 21 is turned on to generate high-frequency ultrasonic waves, which enter the cavitation space 24 and form a cavitation field in the slurry thin layer. The high-frequency ultrasonic waves are then mutually reflected by the radiation surface 22 and the reflection surface 23, so that the high-frequency ultrasonic waves are reflected and superimposed multiple times in the cavitation space 24, so that the material cells in the slurry are broken and cavitated; the material after the wall breaking and cavitation flows into the storage hopper 31 through the cavitation pipe 25, and then enters the wall breaking mill grinding chamber;

[0045] Next, the driving motor 34 is turned on, and the driving motor 34 drives the driving wheel 35, the conveyor belt 37 and the driven wheel 36 to rotate at high speed. The driven wheel 36 drives the dynamic grinding head 33 of the wall-breaking mill to rotate at high speed through the connecting shaft. The dynamic grinding head 33 of the wall-breaking mill cooperates with the static grinding head 32 of the wall-breaking mill to grind the material. The material after wall-breaking and grinding enters the screening box through the wall-breaking mill discharge pipe 38.

[0046] Next, the screening motor 42 is turned on, and the screening motor 42 drives the screening blades 43 to rotate at high speed, and the slurry in the screening box is stirred by the screening blades 43. When the pipeline valve 47 on the discharge port 44 is opened, a part of the fine slurry is filtered by the screen 41 and flows out from the discharge port 44; when the pipeline valve 46 or the pipeline valve 47 on the coarse slurry return pipe 46 or the coarse slurry outlet 45 is opened, the other part of the coarse slurry that cannot pass through the screen 41 flows back to the storage hopper 31 through the coarse slurry return pipe 46 to break the wall again, or is directly discharged through the coarse slurry outlet 45.

[0047] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wet wall breaking device based on ultrasonic cavitation technology, comprising a device housing (8), and shock-absorbing feet (7) respectively located at the four corners of the bottom end of the device housing (8), an electric control box (6) is installed outside the device housing (8), characterized in that: A primary grinding system (1) is embedded and installed on one side of the device housing (8); an ultrasonic cavitation system (2) is installed at one end of the primary grinding system (1); a wall-breaking grinding system (3) is installed at one end of the ultrasonic cavitation system (2); and a screening system (4) is installed at one end of the wall-breaking grinding system (3); The primary grinding system (1) comprises a primary grinding system bracket (13) fixed inside a device housing (8), a motor (14) being fixedly mounted at the lower end of the primary grinding system bracket (13), and a primary grinding chamber being arranged at the upper end of the primary grinding system bracket (13), the upper end of the primary grinding chamber being located at the upper end of the device housing (8) and being fixedly connected to a feed hopper (11), and a primary grinding pipeline assembly (17) being fixedly connected to the lower end of one side of the primary grinding chamber, a primary grinding static grinding head (15) and a primary grinding dynamic grinding head (16) being arranged inside the primary grinding chamber, and a pre-crushing knife (12) being arranged between the feed hopper (11) and the primary grinding chamber.

2. A wet wall breaking device based on ultrasonic cavitation technology according to claim 1, characterized in that: The primary grinding system (1), the ultrasonic cavitation system (2) and the wall-breaking grinding system (3) are all equipped with a plurality of self-cleaning nozzles (5), and the plurality of self-cleaning nozzles (5) are connected to external high-pressure water via self-cleaning pipes (51).

3. The wet wall breaking device based on ultrasonic cavitation technology according to claim 1, characterized in that: The primary grinding static grinding head (15) is fixed inside the primary grinding crushing chamber, and the primary grinding dynamic grinding head (16) and the pre-crushing knife (12) are fixedly connected to the output end of the motor (14) through a rotating shaft at the same time, and the primary grinding dynamic grinding head (16) is located on the inner side of the primary grinding static grinding head (15).

4. The wet wall breaking device based on ultrasonic cavitation technology according to claim 1, characterized in that: The ultrasonic cavitation system (2) comprises a cavitation box connected to the primary grinding system (1); a cavitation pipe (25) is arranged at the lower side of one end of the cavitation box, and an ultrasonic generator (21) is embedded and installed at the upper end of the inner side of the cavitation box; a radiation surface (22) is arranged at the lower end of the ultrasonic generator (21); a reflection surface (23) is arranged on the inner side of the cavitation box corresponding to the radiation surface (22); and a cavitation space (24) is formed between the cavitation box, the ultrasonic generator (21), the radiation surface (22) and the reflection surface (23).

5. The wet wall breaking device based on ultrasonic cavitation technology according to claim 1, characterized in that: The wall-breaking mill system (3) comprises a storage hopper (31) connected to the ultrasonic cavitation system (2), and a driving motor (34) fixedly installed inside the device housing (8); a wall-breaking mill crushing chamber is arranged at the lower end of the storage hopper (31), and a wall-breaking mill discharge pipe (38) is fixedly connected to the lower end of one side of the wall-breaking mill crushing chamber; a wall-breaking mill static grinding head (32) and a wall-breaking mill dynamic grinding head (33) are arranged inside the wall-breaking mill crushing chamber; a driving wheel (35) is fixedly connected to the output end of the driving motor (34); a conveyor belt (37) is arranged on the outer side of the driving wheel (35); and a driven wheel (36) is arranged on the inner side of the conveyor belt (37) at one end away from the driving wheel (35).

6. A wet wall breaking device based on ultrasonic cavitation technology according to claim 5, characterized in that: The middle part of the driven wheel (36) is fixedly connected to the dynamic grinding head (33) of the wall-breaking mill via a connecting shaft, and the connecting shaft is installed inside the wall-breaking mill grinding chamber via a bearing, the static grinding head (32) of the wall-breaking mill is fixed inside the wall-breaking mill grinding chamber, and the dynamic grinding head (33) of the wall-breaking mill is located on the inner side of the static grinding head (32) of the wall-breaking mill.

7. The wet wall breaking device based on ultrasonic cavitation technology according to claim 1, characterized in that: The screening system (4) comprises a screening box connected to the wall-breaking mill system (3), and a screening motor (42) fixedly mounted on the screening box, the output end of the screening motor (42) being fixedly connected to a screening blade (43), one end of the screening box being fixedly connected to a coarse pulp outlet (45), and a discharge port (44) being fixedly connected to one side of the lower end of the screening box, a screen (41) being mounted inside the screening box, a coarse pulp return pipe (46) being fixedly connected to the coarse pulp outlet (45), and pipeline valves (47) being mounted on the discharge port (44), the coarse pulp outlet (45) and the coarse pulp return pipe (46), and the screening blade (43) being located above the inside of the screen (41).

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