Dairy farm sewage harmless treatment device

Abstract

The invention discloses a dairy farm sewage harmless treatment device which comprises a fermentation box, a temperature adjusting mechanism is arranged outside the fermentation box, a first liquid inlet and a first liquid outlet are formed in the fermentation box, a first electromagnetic valve is installed on the first liquid inlet, a first valve is installed on the first liquid outlet, and an auxiliary material adding mechanism is arranged on the fermentation box; the stirring assembly comprises a moving frame, the moving frame is slidably arranged in the fermentation box, a plurality of electric telescopic rods are fixedly connected to the top end of the fermentation box, a first stirring mechanism and a second stirring mechanism are rotatably connected to the moving frame, and a first rotating shaft is rotatably connected to the outside of the moving frame; the first stirring mechanism and the second stirring mechanism are both in transmission connection with the first rotating shaft, a first motor and a second motor are fixedly connected outside the fermentation box, and a plurality of upper check blocks and a plurality of lower check blocks are fixedly connected inside the fermentation box. Anaerobic fermentation or aerobic fermentation can be carried out in the fermentation box according to requirements, equipment does not need to be replaced, and the device is more convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of fermentation devices, in particular to a harmless treatment device for dairy farm sewage. Background Art

[0002] Dairy farm wastewater mainly comes from urine discharged by dairy cows and wastewater from flushing cowsheds. In the process of intensive and large-scale dairy farming, the discharge of these wastewaters is huge and often cannot be naturally digested in the area near the farm. Dairy farm wastewater contains a large amount of organic matter, nitrogen, phosphorus and other pollutants. If it is not properly treated and discharged directly, it will cause multiple harms to the environment.

[0003] The harmless treatment of sewage is a complex but crucial process. Anaerobic treatment and aerobic treatment are the core links of harmless treatment of farm sewage. Most of the existing fermentation devices can only perform single aerobic or anaerobic fermentation. Different fermentation treatments require the replacement of different equipment, which causes inconvenience in the treatment work.

[0004] Therefore, a harmless treatment device for dairy farm sewage is proposed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a harmless treatment device for dairy farm sewage to solve the problems existing in the above-mentioned prior art, and anaerobic fermentation and aerobic fermentation can be completed in one device.

[0006] To achieve the above object, the present invention provides the following solution: The present invention provides a harmless treatment device for dairy farm sewage, comprising:

[0007] A fermentation box, wherein a temperature regulating mechanism is arranged outside the fermentation box, a first liquid inlet and a first liquid discharge port are provided on the fermentation box, a first solenoid valve is installed on the first liquid inlet, a first valve is installed on the first liquid discharge port, an auxiliary material adding mechanism is provided on the fermentation box, a plurality of aeration pipes are laid in the fermentation box, a plurality of aeration holes are provided on the aeration pipes, the aeration pipes extend out of the fermentation box and are connected to an air pump, an exhaust hole is provided on the fermentation box, and a second solenoid valve is installed on the exhaust hole;

[0008] A stirring assembly, wherein the stirring assembly includes a movable frame, the movable frame is slidably arranged in the fermentation box, a plurality of electric telescopic rods are fixedly connected to the top of the fermentation box, the electric telescopic rods are transmission connected to the movable frame, a first stirring mechanism and a second stirring mechanism are rotatably connected to the movable frame, a first rotating shaft is rotatably connected outside the movable frame, the first stirring mechanism and the second stirring mechanism are both transmission connected to the first rotating shaft, a first motor and a second motor are fixedly connected outside the fermentation box, the first motor is located above the second motor, a plurality of upper blocks and a plurality of lower blocks are fixedly connected in the fermentation box, the movable frame is located between the upper block and the lower block, and the first rotating shaft is transmission connected to one of the first motor and / or the second motor.

[0009] Preferably, the first stirring mechanism comprises a second rotating shaft, the second rotating shaft is rotatably connected to the movable frame, a plurality of first blades are fixedly connected to the second rotating shaft, and the second rotating shaft is drivingly connected to the first rotating shaft.

[0010] Preferably, a plurality of first bevel gears are fixedly connected to the first rotating shaft, a second bevel gear is fixedly connected to the second rotating shaft, and the second bevel gear is drivingly connected to the first bevel gear.

[0011] Preferably, the second stirring mechanism includes a plurality of partitions and a plurality of third rotating shafts, the third rotating shaft is located between two of the partitions, a plurality of first through holes are opened on the partitions, a fluctuating plate is rotatably connected in the first through holes, the fluctuating plate is elastically arranged on the partitions, a plurality of fixed plates are fixedly connected to the third rotating shaft, when the third rotating shaft rotates, the fixed plate contacts the fluctuating plate, and the third rotating shaft is transmission-connected to the first rotating shaft.

[0012] Preferably, a plurality of first connecting plates are fixedly connected to the partition, the first connecting plates are located at the upper and lower sides of the first through hole, a spring is fixedly connected between the first connecting plates and the fluctuating plate, and the fluctuating plate is rotatably connected in the first through hole via a connecting shaft.

[0013] Preferably, a third bevel gear is fixedly connected to the third rotating shaft, a plurality of fourth bevel gears are fixedly connected to the first rotating shaft, and the third bevel gear is transmission-connected to the fourth bevel gears.

[0014] Preferably, a first spur gear is fixedly connected to the first motor, a second spur gear is fixedly connected to the second motor, a third spur gear is fixedly connected to the first rotating shaft, and the third spur gear is transmission-connected to one of the first spur gear and / or the second spur gear.

[0015] Preferably, the temperature regulating mechanism includes an outer shell, which is fixedly connected to the outside of the fermentation box, and is provided with a second liquid inlet and a second liquid discharge port. The outer shell is filled with a heat-conducting medium, and the second liquid inlet and the second liquid discharge port are connected to a circulation mechanism, and the circulation mechanism has the function of regulating the temperature of the heat-conducting medium.

[0016] Preferably, the output end of the electric telescopic rod is fixedly connected to a top plate, a through hole is provided on the top plate, a connecting rod is fixedly connected to the mobile frame, the connecting rod extends out of the fermentation box, the top plate is fixedly connected to the connecting rod, a guide bar is fixedly connected inside the fermentation box, and an arc plate is fixedly connected to the mobile frame, and the arc plate is adapted to the guide bar.

[0017] Preferably, the first motor and the second motor are fixedly connected to the fermentation box via a mounting plate, the output shafts of the first motor and the second motor both extend into the fermentation box, the auxiliary material adding mechanism comprises a hopper, a feeding port is provided on the fermentation box, the feeding port is connected to the hopper via a material guide pipe, a second valve is installed on the material guide pipe, and a plurality of legs are fixedly connected to the fermentation box.

[0018] The present invention discloses the following technical effects: in the present device, the fermentation box is used to realize anaerobic fermentation and aerobic fermentation, sewage is added into the fermentation box through the first liquid inlet, the added sewage is sewage after solid-liquid separation and does not contain obvious solid impurities, the first solenoid valve is used to control the first liquid inlet, the first liquid discharge port is used to discharge the fermented liquid, the auxiliary material adding mechanism is convenient for adding auxiliary materials during the fermentation process to ensure the fermentation effect, the aeration pipe is used for aerobic fermentation, and the fermenting sewage is ventilated during aerobic fermentation, the aeration hole is convenient for gas discharge, the exhaust hole is mainly used to discharge the gas in the fermentation box, and the gas discharge fermentation tank is required in both anaerobic fermentation and aerobic fermentation, and the movable frame can be moved up and down under the drive of the electric telescopic rod. The mobile frame moves downward, and the mobile frame moves between the upper block and the lower block, and the upper block and the lower block have a limiting function. The electric telescopic rod drives the mobile frame to move upward. After the mobile frame abuts against the upper block, the first shaft will be connected to the first motor, and the first motor drives the first shaft to rotate. The first shaft drives the first stirring mechanism and the second stirring mechanism to move, and the fermented liquid is stirred. When the electric telescopic rod drives the mobile frame to move downward, after the mobile frame abuts against the lower block, the first shaft will be connected to the second motor, thereby also moving the first stirring mechanism and the second stirring mechanism. The main function of the mobile frame above and below is to stir the fermented liquid of different depths to prevent uneven stirring. The present invention can perform anaerobic fermentation or aerobic fermentation in the fermentation box according to demand, without the need to replace equipment, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the structure of the harmless treatment device for dairy farm sewage of the present invention;

[0021] Figure 2 A top view of the mobile frame of the present invention;

[0022] Figure 3 for Figure 1 The enlarged schematic diagram at a in the middle;

[0023] Among them, 1, fermentation box; 2, first liquid inlet; 3, first liquid outlet; 4, first solenoid valve; 5, aeration pipe; 6, moving frame; 7, electric telescopic rod; 8, first rotating shaft; 9, first motor; 10, second motor; 11, upper block; 12, lower block; 13, second rotating shaft; 14, first blade; 15, first bevel gear; 16, second bevel gear; 17, partition; 18, third rotating shaft; 19, first through hole; 20, wave plate ; 21. Fixed plate; 22. First connecting plate; 23. Spring; 24. Third bevel gear; 25. Fourth bevel gear; 26. First spur gear; 27. Second spur gear; 28. Third spur gear; 29. ​​Housing; 30. Second liquid inlet; 31. Second liquid outlet; 32. Top plate; 33. Connecting rod; 34. Guide strip; 35. Arc plate; 36. Mounting plate; 37. Hopper; 38. Material guide pipe; 39. Second valve; 40. Support leg. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figure 1-3 The present invention provides a harmless treatment device for dairy farm sewage, comprising:

[0027] A fermentation box 1, a temperature regulating mechanism is arranged outside the fermentation box 1, a first liquid inlet 2 and a first liquid discharge port 3 are provided on the fermentation box 1, a first solenoid valve 4 is installed on the first liquid inlet 2, a first valve is installed on the first liquid discharge port 3, an auxiliary material adding mechanism is arranged on the fermentation box 1, a plurality of aeration pipes 5 are laid in the fermentation box 1, a plurality of aeration holes are arranged on the aeration pipes 5, the aeration pipes 5 extend out of the fermentation box 1 and are connected to the air pump, an exhaust hole is provided on the fermentation box 1, and a second solenoid valve 41 is installed on the exhaust hole;

[0028] A stirring assembly, the stirring assembly includes a moving frame 6, the moving frame 6 is slidably arranged in the fermentation box 1, a plurality of electric telescopic rods 7 are fixedly connected to the top of the fermentation box 1, the electric telescopic rods 7 are transmission connected to the moving frame 6, a first stirring mechanism and a second stirring mechanism are rotatably connected to the moving frame 6, a first rotating shaft 8 is rotatably connected to the outside of the moving frame 6, the first stirring mechanism and the second stirring mechanism are both transmission connected to the first rotating shaft 8, a first motor 9 and a second motor 10 are fixedly connected to the outside of the fermentation box 1, the first motor 9 is located above the second motor 10, a plurality of upper blocks 11 and a plurality of lower blocks 12 are fixedly connected to the inside of the fermentation box 1, the moving frame 6 is located between the upper block 11 and the lower block 12, and the first rotating shaft 8 is transmission connected to one of the first motor 9 and / or the second motor 10.

[0029] In the present device, the fermentation box 1 is used to realize anaerobic fermentation and aerobic fermentation. Sewage is added into the fermentation box 1 through the first liquid inlet 2. The added sewage is sewage that has been separated from the solid and liquid and does not contain obvious solid impurities. The first solenoid valve 4 is used to control the first liquid inlet 2. The first liquid discharge port 3 is used to discharge the fermented liquid. The auxiliary material adding mechanism is convenient for adding auxiliary materials during the fermentation process to ensure the fermentation effect. The aeration pipe 5 is used for aerobic fermentation. During aerobic fermentation, the fermenting sewage is ventilated. The aeration hole facilitates gas discharge. The exhaust hole is mainly used to discharge the gas in the fermentation box 1. Both anaerobic fermentation and aerobic fermentation require gas to discharge the fermentation tank 1. The movable frame 6 can move up and down driven by the electric telescopic rod 7. The movable frame 6 is on the upper block 11 The electric telescopic rod 7 drives the mobile frame 6 to move upward. After the mobile frame 6 contacts the upper block 11, the first rotating shaft 8 is connected to the first motor 9. The first rotating shaft 8 is driven by the first motor 9 to rotate. The first rotating shaft 8 drives the first stirring mechanism and the second stirring mechanism to move, and the fermentation liquid is stirred. When the electric telescopic rod 7 drives the mobile frame 6 to move downward, after the mobile frame 6 contacts the lower block 12, the first rotating shaft 8 is connected to the second motor 10, thereby also causing the first stirring mechanism and the second stirring mechanism to move. The main function of the mobile frame 6 above and below is to stir the fermentation liquid at different depths to prevent uneven stirring. Whether it is anaerobic fermentation or aerobic fermentation, the fermentation liquid needs to be stirred, and auxiliary equipment required for the fermentation process, such as temperature sensors, pH sensors, etc., can also be installed as needed.

[0030] In this embodiment, a second connecting plate is fixedly connected to the movable frame 6, and the first rotating shaft 8 is rotatably connected to the second connecting plate.

[0031] According to a further optimized solution, the first stirring mechanism includes a second rotating shaft 13 , which is rotatably connected to the movable frame 6 , to which a plurality of first blades 14 are fixedly connected, and the second rotating shaft 13 is transmission-connected to the first rotating shaft 8 .

[0032] The first rotating shaft 8 drives the second rotating shaft 13 to rotate, and the second rotating shaft 13 drives the first blades 14 to rotate to stir the fermenting liquid.

[0033] According to a further optimized solution, a plurality of first bevel gears 15 are fixedly connected to the first rotating shaft 8 , a second bevel gear 16 is fixedly connected to the second rotating shaft 13 , and the second bevel gears 16 are drivingly connected to the first bevel gears 15 .

[0034] The first rotating shaft 8 drives the first bevel gear 15 to rotate, and the first bevel gear 15 drives the second bevel gear 16 to rotate, thereby causing the second rotating shaft 13 to rotate.

[0035] A further optimized solution is that the second stirring mechanism includes a plurality of partitions 17 and a plurality of third rotating shafts 18. The third rotating shaft 18 is located between two partitions 17. A plurality of first through holes 19 are opened on the partitions 17. A fluctuating plate 20 is rotatably connected in the first through holes 19. The fluctuating plate 20 is elastically arranged on the partitions 17. A plurality of fixed plates 21 are fixedly connected to the third rotating shaft 18. When the third rotating shaft 18 rotates, the fixed plate 21 contacts the fluctuating plate 20, and the third rotating shaft 18 is transmission-connected to the first rotating shaft 8.

[0036] The wave plate 20 elastically arranged on the partition 17 can maintain its initial position. The initial position of the wave plate 20 is a straight state. The first rotating shaft 8 drives the third rotating shaft 18 to rotate, and the third rotating shaft 18 drives the fixed plate 21 to rotate. When the fixed plate 21 rotates, it will contact the wave plate 20, causing the wave plate 20 to shake up and down, thereby causing the fermentation liquid to form waves, which can achieve the purpose of sufficient stirring.

[0037] A further optimized solution is that a plurality of first connecting plates 22 are fixedly connected to the partition 17, the first connecting plates 22 are located on the upper and lower sides of the first through hole 19, a spring 23 is fixedly connected between the first connecting plates 22 and the wave plate 20, and the wave plate 20 is rotatably connected to the first through hole 19 via a connecting shaft.

[0038] The first connecting plate 22 is used to install the spring 23. There are springs 23 on both the upper and lower sides of the wave plate 20. The springs 23 can keep the wave plate 20 straight and can return to its original position after being moved by the wave plate 20, so as to facilitate the formation of waves for the fermentation liquid.

[0039] According to a further optimized solution, a third bevel gear 24 is fixedly connected to the third rotating shaft 18 , a plurality of fourth bevel gears 25 are fixedly connected to the first rotating shaft 8 , and the third bevel gear 24 and the fourth bevel gear 25 are transmission-connected.

[0040] The first rotating shaft 8 drives the fourth bevel gear 25 to rotate, the fourth bevel gear 25 drives the third bevel gear 24 to rotate, and the third bevel gear 24 drives the third rotating shaft 18 to rotate.

[0041] A further optimized solution is that a first spur gear 26 is fixedly connected to the first motor 9, a second spur gear 27 is fixedly connected to the second motor 10, a third spur gear 28 is fixedly connected to the first rotating shaft 8, and the third spur gear 28 is transmission-connected to one of the first spur gear 26 and / or the second spur gear 27.

[0042] The first motor 9 drives the first spur gear 26 to rotate. When the first spur gear 26 is engaged with the third spur gear 28, the first spur gear 26 drives the third spur gear 28 to rotate, thereby rotating the first rotating shaft 8; when the second spur gear 27 is engaged with the third spur gear 28, the second motor 10 drives the second spur gear 27 to rotate, and the second spur gear 27 drives the third spur gear 28 to rotate, thereby rotating the first rotating shaft 8.

[0043] A further optimized solution is that the temperature regulating mechanism includes a shell 29, which is fixedly connected to the outside of the fermentation box 1, and is provided with a second liquid inlet 30 and a second liquid discharge port 31. The shell 29 is filled with a heat-conducting medium, and the second liquid inlet 30 and the second liquid discharge port 31 are connected to a circulation mechanism, which has the function of regulating the temperature of the heat-conducting medium.

[0044] The circulation mechanism can be a heat pump or other equipment that can adjust the temperature of the heat-conducting medium. Its purpose is to achieve temperature regulation of the heat-conducting medium. The heat-conducting medium enters the outer shell 29 from the second liquid inlet 30 and is discharged from the second liquid outlet 31. Such a cycle can increase the temperature of the fermentation liquid in the fermentation box 1 or reduce the temperature of the fermentation liquid in the fermentation box 1.

[0045] To further optimize the solution, the output end of the electric telescopic rod 7 is fixedly connected to a top plate 32, a through hole is provided on the top plate 32, a connecting rod 33 is fixedly connected to the movable frame 6, the connecting rod 33 extends out of the fermentation box 1, the top plate 32 is fixedly connected to the connecting rod 33, a guide bar 34 is fixedly connected in the fermentation box 1, and an arc plate 35 is fixedly connected to the movable frame 6, and the arc plate 35 is adapted to the guide bar 34.

[0046] The electric telescopic rod 7 drives the top plate 32 to move up and down, the top plate 32 drives the connecting rod 33 to move up and down, the connecting rod 33 drives the movable frame 6 to move up and down, the arc plate 35 cooperates with the guide bar 34, so that the movable frame 6 moves up and down more stably, and the purpose of the through hole is to facilitate the addition of liquid or auxiliary materials into the fermentation box 1.

[0047] A further optimized solution is that the first motor 9 and the second motor 10 are fixedly connected to the fermentation box 1 through a mounting plate 36, and the output shafts of the first motor 9 and the second motor 10 both extend into the fermentation box 1. The auxiliary material adding mechanism includes a hopper 37. A feeding port is provided on the fermentation box 1. The feeding port is connected to the hopper 37 through a feed guide pipe 38. A second valve 39 is installed on the feed guide pipe 38. A plurality of legs 40 are fixedly connected to the fermentation box 1.

[0048] When adding auxiliary materials, the auxiliary materials are added into the hopper 37 , and then the second valve 39 is opened to allow the auxiliary materials to enter the fermentation box 1 .

[0049] The method of using the device is as follows: sewage is added into the fermentation box 1 through the first liquid inlet 2. When adding auxiliary materials, the auxiliary materials are added into the hopper 37, and then the second valve 39 is opened to allow the auxiliary materials to enter the fermentation box 1. When the addition is completed, the second valve 39 is closed; during the fermentation process, the fermentation liquid needs to be stirred. When stirring the upper fermentation liquid, the electric telescopic rod 7 drives the moving frame 6 to move upward. After the moving frame 6 abuts against the upper block 11, the first spur gear 26 is meshed with the third spur gear 28, and the first motor 9 drives the first spur gear 26 to rotate, and the first spur gear 26 drives the third spur gear 28 to rotate, thereby rotating the first rotating shaft 8, the first rotating shaft 8 drives the second rotating shaft 13 and the third rotating shaft 18 to rotate, and the second rotating shaft 13 drives the first blade 14 to rotate, so as to stir the fermenting liquid. The third rotating shaft 18 drives the fixed plate 21 to rotate, and when the fixed plate 21 rotates, it will contact the fluctuating plate 20, so that the fluctuating plate 20 shakes up and down, so that the fermentation liquid forms waves, which can achieve the purpose of sufficient stirring. When stirring the lower layer of fermentation liquid, the electric telescopic rod 7 drives the moving frame 6 to move downward. After the moving frame 6 abuts against the lower stopper 12, the second spur gear 27 and the third spur gear 28, the second motor 10 drives the second spur gear 27 to rotate, and the second spur gear 27 drives the third spur gear 28 to rotate, thereby rotating the first rotating shaft 8, and the first rotating shaft 8 will cause the first stirring mechanism and the second stirring mechanism to move.

[0050] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A harmless treatment device for dairy farm sewage, characterized in that: include: A fermentation box (1), wherein a temperature regulating mechanism is arranged outside the fermentation box (1), a first liquid inlet (2) and a first liquid discharge port (3) are provided on the fermentation box (1), a first solenoid valve (4) is installed on the first liquid inlet (2), a first valve is installed on the first liquid discharge port (3), an auxiliary material adding mechanism is arranged on the fermentation box (1), a plurality of aeration pipes (5) are laid inside the fermentation box (1), a plurality of aeration holes are arranged on the aeration pipes (5), the aeration pipes (5) extend out of the fermentation box (1) and are connected to an air pump, an exhaust hole is provided on the fermentation box (1), and a second solenoid valve (41) is installed on the exhaust hole; A stirring assembly, the stirring assembly comprising a moving frame (6), the moving frame (6) being slidably arranged in the fermentation box (1), a plurality of electric telescopic rods (7) being fixedly connected to the top of the fermentation box (1), the electric telescopic rods (7) being transmission-connected to the moving frame (6), a first stirring mechanism and a second stirring mechanism being rotationally connected to the moving frame (6), a first rotating shaft (8) being rotationally connected to the outside of the moving frame (6), the first stirring mechanism and the second stirring mechanism being transmission-connected to the first rotating shaft (8), a first motor (9) and a second motor (10) being fixedly connected to the outside of the fermentation box (1), the first motor (9) being located above the second motor (10), a plurality of upper blocks (11) and a plurality of lower blocks (12) being fixedly connected to the inside of the fermentation box (1), the moving frame (6) being located between the upper block (11) and the lower block (12), the first rotating shaft (8) being transmission-connected to one of the first motor (9) and / or the second motor (10).

2. The harmless treatment device for dairy farm sewage according to claim 1 is characterized by: The first stirring mechanism comprises a second rotating shaft (13), the second rotating shaft (13) is rotatably connected to the movable frame (6), a plurality of first blades (14) are fixedly connected to the second rotating shaft (13), and the second rotating shaft (13) is transmission-connected to the first rotating shaft (8).

3. The harmless treatment device for dairy farm sewage according to claim 2 is characterized by: A plurality of first bevel gears (15) are fixedly connected to the first rotating shaft (8), a second bevel gear (16) is fixedly connected to the second rotating shaft (13), and the second bevel gear (16) is drivingly connected to the first bevel gear (15).

4. The harmless treatment device for dairy farm sewage according to claim 1 is characterized by: The second stirring mechanism comprises a plurality of partitions (17) and a plurality of third rotating shafts (18). The third rotating shaft (18) is located between two of the partitions (17). The partitions (17) are provided with a plurality of first through holes (19). A fluctuating plate (20) is rotatably connected in the first through holes (19). The fluctuating plate (20) is elastically arranged on the partitions (17). A plurality of fixed plates (21) are fixedly connected to the third rotating shaft (18). When the third rotating shaft (18) rotates, the fixed plates (21) contact the fluctuating plates (20), and the third rotating shaft (18) is transmission-connected to the first rotating shaft (8).

5. The harmless treatment device for dairy farm sewage according to claim 4 is characterized by: A plurality of first connecting plates (22) are fixedly connected to the partition plate (17), the first connecting plates (22) are located at the upper and lower sides of the first through hole (19), a spring (23) is fixedly connected between the first connecting plates (22) and the fluctuating plate (20), and the fluctuating plate (20) is rotatably connected to the first through hole (19) via a connecting shaft.

6. The harmless treatment device for dairy farm sewage according to claim 4 is characterized by: A third bevel gear (24) is fixedly connected to the third rotating shaft (18), a plurality of fourth bevel gears (25) are fixedly connected to the first rotating shaft (8), and the third bevel gear (24) and the fourth bevel gears (25) are in transmission connection.

7. The harmless treatment device for dairy farm wastewater according to claim 1 is characterized by: A first spur gear (26) is fixedly connected to the first motor (9), a second spur gear (27) is fixedly connected to the second motor (10), a third spur gear (28) is fixedly connected to the first rotating shaft (8), and the third spur gear (28) is transmission-connected to one of the first spur gear (26) and / or the second spur gear (27).

8. The harmless treatment device for dairy farm sewage according to claim 1 is characterized by: The temperature regulating mechanism comprises a shell (29), the shell (29) is fixedly connected to the outside of the fermentation box (1), a second liquid inlet (30) and a second liquid discharge port (31) are provided on the shell (29), the shell (29) is filled with a heat-conducting medium, the second liquid inlet (30) and the second liquid discharge port (31) are connected to a circulation mechanism, and the circulation mechanism has the function of regulating the temperature of the heat-conducting medium.

9. The harmless treatment device for dairy farm sewage according to claim 1 is characterized by: The output end of the electric telescopic rod (7) is fixedly connected to a top plate (32), a through hole is provided on the top plate (32), a connecting rod (33) is fixedly connected to the movable frame (6), the connecting rod (33) extends out of the fermentation box (1), the top plate (32) is fixedly connected to the connecting rod (33), a guide bar (34) is fixedly connected inside the fermentation box (1), and an arc plate (35) is fixedly connected to the movable frame (6), the arc plate (35) is adapted to the guide bar (34).

10. The harmless treatment device for dairy farm wastewater according to claim 1, characterized in that: The first motor (9) and the second motor (10) are fixedly connected to the fermentation box (1) via a mounting plate (36); the output shafts of the first motor (9) and the second motor (10) extend into the fermentation box (1); the auxiliary material adding mechanism comprises a hopper (37); a feeding port is provided on the fermentation box (1); the feeding port is connected to the hopper (37) via a material guide pipe (38); a second valve (39) is installed on the material guide pipe (38); and a plurality of legs (40) are fixedly connected to the fermentation box (1).

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