Vertical high solid anaerobic fermentation tank layer stirring device

Abstract

The invention relates to the technical field of fermentation tanks, and in particular to a layered stirring device for a vertical high-solid anaerobic fermentation tank, comprising a tank body, a driving device, a stirring device and a rake, wherein a plurality of feed pipelines are arranged on the top of the tank body, the stirring device comprises a stirring main shaft and a plurality of stirrers evenly distributed along the length direction of the stirring main shaft, the rake is arranged at the bottom of the tank body and connected to the stirring main shaft, a plurality of stirring racks are layered and cross-arranged, the stirring device also comprises a sleeve rod, a bearing sleeve, an active magnetic ring, a connecting pipe, a passive magnetic ring, a limiting ring, a mounting ring coaxially fixedly arranged on the passive magnetic ring and a contact piece arranged on the inner wall of the mounting ring, and a spring piece is formed on the limiting ring. The device can automatically adjust the stirring speed according to the viscosity of the material when stirring the material, ensure that the material is in a suitable disturbance range, improve the degree of material mixing, and ensure uniform fermentation.

Description

Technical Field

[0001] The invention relates to the technical field of fermentation tanks, in particular to a vertical high-solid anaerobic fermentation tank layer stirring device. Background Art

[0002] Organic waste is solid waste generated in human daily life and production. Due to its large discharge volume, complex and diverse composition, and its pollution, resource and social nature, it needs to be harmlessly, resourcefully, reduced and socially treated. If it is not properly handled, it will pollute the environment, affect environmental hygiene and waste resources.

[0003] At present, dry biogas fermentation is usually used to transform organic waste to produce methane, carbon dioxide and other organic compounds. These products can be collected and used as fuel, and the by-products produced can be used as fertilizers. Due to the high solid content in dry biogas fermentation, continuous stirring is required during the fermentation process to ensure uniform fermentation and accelerate the fermentation process. During the stirring process, the viscosity of the material is the key factor in determining the stirring speed. The viscosity of the material needs to match the rotation speed of the stirring shaft. The existing stirring device cannot automatically adjust the rotation speed of the stirring shaft according to the viscosity of the material in real time. Therefore, a new stirring device that can adaptively adjust the stirring speed is needed. Summary of the invention

[0004] Based on this, it is necessary to provide a vertical high-solid anaerobic fermentation tank layered stirring device to address the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical scheme adopted by the present invention is: a vertical high-solid anaerobic fermentation tank layered stirring device, including a tank body, a driving device, a stirring device and a rake, a feeding pipeline is provided on the top of the tank body, the stirring device includes a stirring main shaft and a plurality of stirring racks evenly distributed along the length direction of the stirring main shaft, the rake is arranged at the bottom of the tank body and connected to the stirring main shaft, and the plurality of stirring racks are layered and cross-arranged, the stirring device also includes a sleeve rod coaxially arranged on the stirring main shaft, a bearing sleeve coaxially fixedly arranged on the stirring main shaft, an active magnetic ring coaxially fixedly sleeved on the bearing sleeve, a connecting pipe rotatably arranged between the stirring main shaft and the sleeve rod, a passive magnetic ring coaxially fixedly arranged on the connecting pipe, a limiting ring coaxially fixedly arranged on the active magnetic ring, a mounting ring coaxially fixedly arranged on the passive magnetic ring and a contact piece arranged on the inner wall of the mounting ring, and a spring piece is formed on the limiting ring.

[0006] Furthermore, the stirring main shaft is a stepped shaft, and the major diameter of the stirring main shaft is the same as the outer diameter of the sleeve rod.

[0007] Furthermore, the sleeve rod is fixedly connected to the inner diameter of the stirring main shaft by bolts.

[0008] Furthermore, the active magnetic ring is a first permanent magnetic ring.

[0009] Furthermore, the passive magnetic ring is a second permanent magnetic ring

[0010] Furthermore, one end of the connecting pipe is rotatably connected to the large-diameter end of the stirring main shaft, and the other end is rotatably connected to the sleeve rod.

[0011] Furthermore, the limiting ring, the mounting ring and the contact piece are all made of conductive materials, the mounting ring is provided with a signal generator, and the limiting ring is provided with a power supply.

[0012] Furthermore, a plurality of retaining bars are provided in an annular shape on the outer wall of the connecting pipe.

[0013] Furthermore, the stirring device includes, from top to bottom, a first stirring frame and a second stirring frame coaxially fixed on the stirring main shaft, a carrying ring coaxially fixed on the sleeve rod, a plurality of disturbance shafts rotatably arranged on the carrying ring in a ring shape at equal intervals, a power ring coaxially fixed on the inner wall of the tank body, and a power wheel coaxially fixed on the end of the disturbance shaft away from the carrying ring. The power wheel is transmission-connected to the power ring, the stirring blades of the first stirring frame are in a horizontal state, the stirring blades of the second stirring frame are tilted downward, and at least two groups of toggling blades are evenly spaced on the disturbance shaft.

[0014] Furthermore, the stirring device also includes a disturbance tube coaxially keyed with the sleeve rod, a disturbance stirring frame coaxially fixed on the disturbance tube, a positioning support plate fixedly arranged at the bottom of the tank body, a contact plate elastically slidably connected to the center of the positioning support plate, supporting rods symmetrically fixedly arranged at both ends of the contact plate, supporting rings fixedly arranged at the ends of the two supporting rods, a reduction motor arranged beside the contact plate and fixedly connected to the bottom of the tank body, and a cam coaxially fixedly arranged on the output shaft of the reduction motor, the supporting ring is rotationally connected to the disturbance tube, and the bottom of the sleeve rod is rotationally connected to the positioning support plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] First: This device ensures that when the viscosity of the material changes, this information is detected in time through the cooperation of the first permanent magnetic ring and the second permanent magnetic ring, and the stirring speed is adjusted in time, so that the material is always in the optimal disturbance range, the material mixing degree is improved, and the fermentation process is accelerated.

[0017] Second: This device cleverly uses the hysteresis principle, so that when the viscosity of the material changes, the stirring speed can be adjusted in time, saving manpower, preventing the material from being stirred at an inappropriate stirring speed, improving production efficiency, and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the stirring main shaft of the present invention;

[0019] Figure 2 It is a three-dimensional structural cross-sectional view of the stirring main shaft of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure decomposition of the stirring main shaft of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the bearing sleeve of the present invention;

[0022] Figure 5 is a cross-sectional view of the bearing sleeve of the present invention;

[0023] Figure 6 This is a force principle diagram of the first permanent magnetic ring and the second permanent magnetic ring when the material of the present invention is relatively thin;

[0024] Figure 7 This is a force principle diagram of the first permanent magnetic ring and the second permanent magnetic ring when the material of the present invention is viscous;

[0025] Figure 8 It is a schematic diagram of the main structure of the entire device of the present invention;

[0026] Fig. 9 It is a three-dimensional structural schematic diagram of the entire device of the present invention;

[0027] Fig.10 is a sectional view of the three-dimensional structure of the present invention;

[0028] Fig.11 It is a schematic diagram of the three-dimensional structure of the stirring device of the present invention.

[0029] The numbers in the figure are: 1. stirring main shaft; 2. sleeve rod; 3. bearing sleeve; 4. first permanent magnetic ring; 5. limit ring; 6. spring piece; 7. connecting tube; 8. second permanent magnetic ring; 9. mounting ring; 10. contact piece; 11. baffle; 12. first stirring frame; 13. bearing ring; 14. disturbance shaft; 15. shifting blade; 16. power wheel; 17. power ring; 18. disturbance tube; 19. disturbance stirring frame; 20. positioning support plate; 21. supporting ring; 22. supporting rod; 23. contact plate; 24. cam; 25. reduction motor; 26. second stirring frame; 27. tank body. DETAILED DESCRIPTION

[0030] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] refer to Figures 1 to 11 :

[0032] A layered stirring device for a vertical high-solid anaerobic fermentation tank comprises a tank body 27, a driving device, a stirring device and a rake. A feed pipeline is provided on the top of the tank body 27. The stirring device comprises a stirring main shaft 1 and a plurality of stirring racks uniformly distributed along the length direction of the stirring main shaft 1. The rake is arranged at the bottom of the tank body 27 and connected to the stirring main shaft 1. The plurality of stirring racks are layered and cross-arranged. The stirring device also comprises a sleeve rod 2 coaxially arranged on the stirring main shaft 1, a bearing sleeve 3 coaxially fixedly arranged on the stirring main shaft 1, an active magnetic ring coaxially fixedly sleeved on the bearing sleeve 3, a connecting pipe 7 rotatably arranged between the stirring main shaft 1 and the sleeve rod 2, a passive magnetic ring coaxially fixedly arranged on the connecting pipe 7, a limiting ring 5 coaxially fixedly arranged on the active magnetic ring, a mounting ring 9 coaxially fixedly arranged on the passive magnetic ring and a contact piece 10 arranged on the inner wall of the mounting ring 9, and a spring piece 6 is formed on the limiting ring 5.

[0033] The stirring main shaft 1 is a stepped shaft, and the major diameter of the stirring main shaft 1 is the same as the outer diameter of the sleeve rod 2.

[0034] The outer diameter of the sleeve rod 2 is the same as the major diameter of the stirring main shaft 1, so that when the stirring main shaft 1 rotates, the sleeve rod 2 and the outer wall of the stirring main shaft 1 rotate at the same linear speed, so that the agitators connected to the stirring main shaft 1 and the sleeve rod 2 have the same rotation speed.

[0035] The sleeve rod 2 is fixedly connected to the stirring main shaft 1 through bolts.

[0036] The bolt connection method is adopted, so that the stirring main shaft 1 can drive the sleeve rod 2 to rotate more stably and is not easy to fall off.

[0037] The active magnetic ring is the first permanent magnetic ring 4 .

[0038] The passive magnetic ring is the second permanent magnetic ring 8 .

[0039] The first permanent magnet ring 4 is made of NdFeB permanent magnets, and the second permanent magnet ring 8 is made of FeCrCo permanent magnets. Both FeCrCo permanent magnets and NdFeB permanent magnets are strong magnetic materials with high magnetic energy product and coercive force, so they can generate strong hysteresis force when they are together. This is because they can quickly reach a higher magnetization state under the action of an external magnetic field, and can maintain a strong residual magnetism after the external magnetic field is removed.

[0040] One end of the connecting pipe 7 is rotatably connected to the large diameter end of the stirring main shaft 1 , and the other end is rotatably connected to the sleeve rod 2 .

[0041] During the stirring process, the connecting pipe 7 is in direct contact with the material. Since the two ends of the connecting pipe 7 are not fixed, when the material is viscous, the resistance given by the material increases, and the connecting pipe 7 will deflect relative to the stirring main shaft 1 and the sleeve rod 2.

[0042] The limiting ring 5 , the mounting ring 9 and the contact piece 10 are all made of conductive materials. The mounting ring 9 is provided with a signal generator, and the limiting ring 5 is provided with a power supply.

[0043] Combination Figure 6 as well as Figure 7 , F1 is the hysteresis force, and F2 is the resistance given by the material to the connecting pipe 7. When the material is thinner, F1>F2, at this time, the first permanent magnet ring 4 drives the second permanent magnet ring 8 to rotate. At this time, because F1>F2, the first permanent magnet ring 4 and the second permanent magnet ring 8 rotate almost synchronously under the action of the hysteresis force. The spring piece 6 will not come into contact with the contact piece 10, the signal generator on the mounting ring 9 will not receive current input, and the signal generator will not send a signal to the controller, so the motor of the driving device keeps rotating at a constant speed; when the material is viscous, F1<F2, and the hysteresis force F1 at this time can no longer drive the second permanent magnet ring 8 to maintain the same speed as the first permanent magnet ring 4. As the first permanent magnet ring 4 continues to rotate, the deflection between the first permanent magnet ring 4 and the second permanent magnet ring 8 will become larger and larger until the spring piece 6 contacts the contact piece 10, and then the signal generator is powered, and the signal generator sends a signal to the controller. After receiving the signal, the controller controls the pushing device to adjust the paddle position of the sliding rheostat, increase the current output by the sliding rheostat to the motor, and then increase the motor speed, so as to achieve a better stirring effect on the material. The above-mentioned limit ring 5 and the mounting ring 9 are equivalent to a switch structure in the circuit. When the material is thin, the spring piece 6 cannot contact the contact piece 10, and the circuit is disconnected. When the material is viscous, the spring piece 6 contacts the contact piece 10, and the circuit is connected.

[0044] A plurality of retaining strips 11 are provided in an annular shape on the outer wall of the connecting pipe 7 .

[0045] By providing the baffle 11, the material resistance can be more obviously applied to the connecting tube 7, so that when the material is viscous, the rotation of the connecting tube 7 can be blocked by the material in time, thereby making the relative rotation between the first permanent magnet ring 4 and the second permanent magnet ring 8 more obvious.

[0046] In order to specifically show how the entire device is stirred, the specific settings have the following features:

[0047] The stirring device comprises, from top to bottom, a first stirring frame 12 and a second stirring frame 26 coaxially fixed on the stirring main shaft 1, a bearing ring 13 coaxially fixed on the sleeve rod 2, a plurality of disturbance shafts 14 rotatably arranged on the bearing ring 13 in an annular shape and at equal intervals, a power ring 17 coaxially fixed on the inner wall of the tank body 27, and a power wheel 16 coaxially fixed on the end of the disturbance shaft 14 away from the bearing ring 13, the power wheel 16 is transmission-connected with the power ring 17, the stirring blades of the first stirring frame 12 are in a horizontal state, the stirring blades of the second stirring frame 26 are tilted downward, and at least two groups of shifting blades 15 are evenly spaced on the disturbance shaft 14. The upper side of the power ring 17 is provided with teeth, and the power wheel 16 is a gear meshing with the teeth on the power ring 17.

[0048] It should be noted that the power wheel 16 and the power ring 17 may be connected by gear meshing or by transmission through friction. When the device is running, the driving device drives the stirring main shaft 1 to rotate. The rotation of the stirring main shaft 1 causes the first stirring frame 12, the second stirring frame 26 and the carrying ring 13 to rotate. The first stirring frame 12 and the second stirring frame 26 rotate to stir the upper material. When the carrying ring 13 rotates, the disturbance shaft 14 is driven to rotate. The movement of the disturbance shaft 14 drives the power wheel 16 to move on the power ring 17, thereby causing the power wheel 16 to rotate. The rotation of the power wheel 16 drives the disturbance shaft 14 to rotate. The rotation of the disturbance shaft 14 causes the paddle blade 15 to rotate. In this way, the disturbance shaft 14 rotates while rotating alternately in a circular motion, thereby driving the paddle blade 15 to rotate, and vertically stirring the material, so that the upper material can be mixed with the middle material to ensure that the material can be fully mixed. The stirring blade of the second stirring frame 26 is tilted downward, so that the upper material can flow downward as quickly as possible during stirring to ensure uniform mixing.

[0049] In order to further improve the mixing capacity of the device, the following features are specifically set:

[0050] The stirring device also includes a disturbance tube 18 coaxially keyed with the sleeve rod 2, a disturbance stirring frame 19 coaxially fixedly arranged on the disturbance tube 18, a positioning support plate 20 fixedly arranged at the bottom of the tank body 27, a contact plate 23 elastically slidably connected to the center of the positioning support plate 20, a support rod 22 symmetrically fixedly arranged at both ends of the contact plate 23, a support ring 21 fixedly arranged at the ends of the two support rods 22, a reduction motor 25 arranged beside the contact plate 23 and fixedly connected to the bottom of the tank body 27, and a cam 24 coaxially fixedly arranged on the output shaft of the reduction motor 25, the support ring 21 is rotatably connected to the disturbance tube 18, and the bottom of the sleeve rod 2 is rotatably connected to the positioning support plate 20. The contact plate 23 is slidably supported on the upper side of the cam 24, and a compression spring is arranged between the contact plate 23 and the positioning support plate 20.

[0051] When the device is running, the sleeve rod 2 rotates to drive the disturbance tube 18 to rotate, and the rotation of the disturbance tube 18 drives the disturbance stirring frame 19 to rotate, thereby stirring the bottom material. When the viscosity of the material changes, the controller receives the signal of viscosity change to adjust the rotation speed of the driving device motor. At the same time, the controller also sends a control signal to the reduction motor 25. It should be noted that the start and stop of the reduction motor 25 are controlled by the controller, and the two are electrically connected. Then the controller controls the reduction motor 25 to start, and the reduction motor 25 starts to drive the cam 24 to rotate. The rotation of the cam 24 intermittently contacts the contact plate 23, causing the contact plate 23 to shake up and down. The up and down shaking of the contact plate 23 drives the disturbance tube 18 to shake up and down through the supporting rod 22 and the supporting frame. The up and down shaking of the disturbance tube 18 drives the disturbance stirring frame 19 to shake up and down. Through the above structure, the disturbance stirring frame 19 can also shake up and down reciprocatingly when rotating, thereby allowing the material to be fully mixed.

[0052] It should be noted that the driving device can be any motor used in stirring production, and a sliding rheostat is provided on the motor, the sliding rheostat is connected to the motor, a controller and a driving device are provided on the sliding rheostat, the controller is connected to the signal generator on the mounting ring 9, and the driving device is connected to the sliding rheostat paddle. The sliding rheostat can be used to adjust the current size, thereby adjusting the motor speed of the driving device. The working principle of this device is: first, the material is synchronously input into the tank from the feed pipeline at the top of the tank body 27, and then the driving device drives the stirring main shaft 1 to rotate. The rotation of the stirring main shaft 1 causes the first stirring frame 12, the second stirring frame 26 and the carrying ring 13 to rotate. The first stirring frame 12 and the second stirring frame 26 rotate to stir the upper material. When the carrying ring 13 rotates, it drives the disturbance shaft 14 to rotate. The movement of the disturbance shaft 14 drives the power wheel 16 to move on the power ring 17, thereby causing the power wheel 16 to rotate. The rotation of the power wheel 16 drives the disturbance shaft 1 4 rotates, the disturbance shaft 14 rotates to cause the stirring blades 15 to rotate, so that the disturbance shaft 14 rotates while performing circular motion alternately, and then drives the stirring blades 15 to rotate, and vertically stirs the materials, so that the upper layer materials can be mixed with the middle layer materials, ensuring that the materials can be fully mixed, and the stirring blades of the stirring frame of the second stirring frame 26 are tilted downward, so that the upper layer materials can flow downward as soon as possible during stirring, ensuring uniform mixing, and promoting the contact between methanogens and nutrients, increasing gas production, and ensuring smooth discharge of biogas.

[0053] When the stirring main shaft 1 rotates, the stirring main shaft 1 drives the sleeve rod 2 to rotate, the rotation of the sleeve rod 2 drives the disturbance tube 18 to rotate, and the rotation of the disturbance tube 18 drives the disturbance stirring frame 19 to rotate, thereby stirring the bottom material.

[0054] In the above process, the rotation of the stirring main shaft 1 drives the supporting sleeve 3 and the sleeve rod 2 to rotate counterclockwise, and the rotation of the supporting sleeve 3 drives the first permanent magnet ring 4 to rotate counterclockwise. When the first permanent magnet ring 4 rotates counterclockwise, due to the relative movement between the first permanent magnet ring 4 and the second permanent magnet ring 8, the second permanent magnet ring 8 is subjected to the hysteresis force F1 in the tangential direction of the rotation of the first permanent magnet ring 4, and then the second permanent magnet ring 8 will rotate counterclockwise with the first permanent magnet ring 4. In this process, the limit ring 5 rotates counterclockwise with the first permanent magnet ring 4, and the mounting ring 9 rotates with the second permanent magnet ring 8.

[0055] When the material is thin, the rotational resistance F2 given to the connecting tube 7 by the material under the action of the baffle 11 is F2, and at this time F2<F1, therefore, when the first permanent magnet ring 4 drives the second permanent magnet ring 8 to rotate counterclockwise under the action of the hysteresis force, the spring piece 6 on the limit ring 5 will not contact the contact piece 10 on the mounting ring 9, and the signal generator on the mounting ring 9 will not be triggered, and then the signal generator will not send a signal to the controller, so the motor of the driving device keeps rotating at a constant speed; when the material is viscous, the rotational resistance F2 given to the connecting tube 7 by the material is F2>F1, at this time, the first permanent magnet ring 4 drives the limit ring 5 to rotate counterclockwise, which will cause the spring piece 6 to gradually approach the contact piece 10, and when the spring piece 6 contacts the contact piece 10, the signal generator is powered, and then the signal generator sends a signal to the controller, and after receiving the signal, the controller controls the pushing device to adjust the slide The paddle position of the sliding rheostat increases the current output by the sliding rheostat to the motor, thereby increasing the motor speed, thereby achieving a better stirring effect on the material. At the same time, the controller also sends a control signal to the reduction motor 25. It should be noted that the start and stop of the reduction motor 25 is controlled by the controller, and the two are electrically connected. Then the controller controls the reduction motor 25 to start, and the reduction motor 25 starts to drive the cam 24 to rotate. The rotation of the cam 24 intermittently contacts the contact plate 23, causing the contact plate 23 to shake up and down. The up and down shaking of the contact plate 23 drives the disturbance tube 18 to shake up and down through the supporting rod 22 and the supporting frame. The up and down shaking of the disturbance tube 18 drives the disturbance stirring frame 19 to shake up and down. Through the above structure, the disturbance stirring frame 19 can also shake up and down reciprocatingly when rotating, thereby allowing the material to be fully mixed. So far, through the above structure, the stirring device can timely detect the change in the viscosity of the material when stirring the material, and timely adjust the speed of the stirring main shaft 1 to ensure that the material is in the best stirring state, so that the material is fermented evenly.

[0056] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A vertical high-solid anaerobic fermentation tank layered stirring device, comprising a tank body (27), a driving device, a stirring device and a rake, wherein a feed pipeline is provided on the top of the tank body (27), the stirring device comprises a stirring main shaft (1) and a plurality of stirring racks evenly distributed along the length direction of the stirring main shaft (1), the rake is arranged at the bottom of the tank body (27) and connected to the stirring main shaft (1), and the plurality of stirring racks are arranged in layers and crosswise, characterized in that: The stirring device further comprises a sleeve rod (2) coaxially arranged on the stirring main shaft (1), a bearing sleeve (3) coaxially fixedly arranged on the stirring main shaft (1), an active magnetic ring coaxially fixedly sleeved on the bearing sleeve (3), a connecting tube (7) rotatably arranged between the stirring main shaft (1) and the sleeve rod (2), a passive magnetic ring coaxially fixedly arranged on the connecting tube (7), a limiting ring (5) coaxially fixedly arranged on the active magnetic ring, a mounting ring (9) coaxially fixedly arranged on the passive magnetic ring, and a contact piece (10) arranged on the inner wall of the mounting ring (9), and a spring piece (6) is formed on the limiting ring (5); The stirring main shaft (1) is a stepped shaft, and the major diameter of the stirring main shaft (1) is the same as the outer diameter of the sleeve rod (2); The sleeve rod (2) is fixedly connected to the stirring main shaft (1) via bolts; The active magnetic ring is a first permanent magnetic ring (4), and the passive magnetic ring is a second permanent magnetic ring (8); One end of the connecting pipe (7) is rotatably connected to the large diameter end of the stirring main shaft (1), and the other end is rotatably connected to the sleeve rod (2); The limiting ring (5), the mounting ring (9) and the contact piece (10) are all made of conductive materials; the mounting ring (9) is provided with a signal generator, and the limiting ring (5) is provided with a power supply; A plurality of retaining strips (11) are provided in an annular shape on the outer wall of the connecting pipe (7).

2. The vertical high-solid anaerobic fermentation tank layer stirring device according to claim 1, characterized in that: The stirring device comprises, from top to bottom, a first stirring frame (12) and a second stirring frame (26) coaxially fixedly arranged on a stirring main shaft (1), a bearing ring (13) coaxially fixedly arranged on a sleeve rod (2), a plurality of disturbance shafts (14) rotatably arranged on the bearing ring (13) in an annular shape and at equal intervals, a power ring (17) coaxially fixedly arranged on the inner wall of a tank body (27), and a power wheel (16) coaxially fixedly arranged on an end of the disturbance shaft (14) away from the bearing ring (13), the power wheel (16) being transmission-connected to the power ring (17), the stirring blades of the first stirring frame (12) being in a horizontal state, the stirring blades of the second stirring frame (26) being tilted downward, and at least two groups of toggling blades (15) being evenly spaced on the disturbance shaft (14).

3. The vertical high-solid anaerobic fermentation tank layer stirring device according to claim 1, characterized in that: The stirring device further comprises a disturbance tube (18) coaxially keyed with the sleeve rod (2), a disturbance stirring frame (19) coaxially fixedly arranged on the disturbance tube (18), a positioning support plate (20) fixedly arranged at the bottom of the tank body (27), a contact plate (23) elastically slidably connected to the center of the positioning support plate (20), support rods (22) symmetrically fixedly arranged at both ends of the contact plate (23), a support ring (21) fixedly arranged at the ends of the two support rods (22), a reduction motor (25) arranged beside the resistance plate (23) and fixedly connected to the bottom of the tank body (27), and a cam (24) coaxially fixedly arranged on the output shaft of the reduction motor (25), the support ring (21) being rotationally connected to the disturbance tube (18), and the bottom of the sleeve rod (2) being rotationally connected to the positioning support plate (20).

Images