A bio-organic fertilizer biogas slurry fermentation device

Abstract

The present invention discloses a bio-organic fertilizer biogas slurry fermentation device, which relates to the technical field of biogas slurry fermentation equipment, and comprises a fermentation tank, wherein a fixed plug is fixedly installed on the top wall of the fermentation tank, and an interlayer plate is fixedly installed on the inner side wall of the fermentation tank, wherein a hole is opened in the center of the interlayer plate, and a sliding cylinder that can slide up and down is provided in the hole. The present invention samples the biogas slurry being fermented in a closed fermentation tank for multiple times, and performs conductivity detection on the samples, so that the fermentation degree, acid-base balance, etc. of the biogas slurry can be inferred through the change of conductivity, and the fermentation conditions in the fermentation tank can be adjusted in real time to ensure that the fermentation rate is at a high level, which not only avoids the damage to the sealing of the fermentation tank during conventional sampling, causing oxygen to enter the fermentation tank and reduce the activity of anaerobic bacteria in the tank, but also can prevent the fermentation tank from being invaded by pollutants, so as to achieve the purpose of avoiding external pollutants or bacterial flora from polluting the biogas slurry in the tank or destroying the microbial community.

Description

Technical Field

[0001] The invention relates to the technical field of biogas slurry fermentation equipment, in particular to a biogas slurry fermentation device for biological organic fertilizer. Background Art

[0002] Biogas fermentation is a biochemical process that occurs primarily in biogas digesters and involves a variety of microorganisms converting organic waste into biogas and biogas. Biogas is the liquid residue after biogas fermentation, which contains a wealth of nutrients, such as nitrogen, phosphorus, potassium and other macronutrients, as well as a variety of amino acids and active enzymes. Secondary fermentation of biogas can further increase its value, such as producing single-cell protein feed through fermentation, or further processing through dry anaerobic fermentation technology to convert biogas into high-quality functional fertilizers and recover biomass energy.

[0003] During the existing biogas slurry fermentation process, the pH value, water content, temperature, etc. of the biogas slurry will affect the microbial activity in the fermentation tank, reducing the fermentation efficiency of the biogas slurry. Therefore, it is necessary to monitor the biogas slurry in the fermentation tank in real time to ensure that the microbial activity remains at a high level. However, the existing sampling and testing requires destroying the sealing of the fermentation tube, which will not only allow oxygen in the air to enter the tank and reduce the activity of anaerobic bacteria, but may also cause pollution to the fermentation tank, further destroying the microbial activity in the tank, so that the products after biogas fermentation may cause soil, water and agricultural product pollution during subsequent use, posing a potential risk to human health. Summary of the invention

[0004] The object of the present invention is to provide a bio-organic fertilizer biogas slurry fermentation device to solve at least one technical problem existing in the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides the following technical solution: a bio-organic fertilizer biogas slurry fermentation device, comprising a fermentation tank, a fixed plug is fixedly installed on the top wall of the fermentation tank, a partition plate is fixedly installed on the inner side wall of the fermentation tank, a hole is opened in the center of the partition plate, and a sliding cylinder that can slide up and down is provided in the hole, a sampling assembly is provided in the sliding cylinder, and the sampling assembly includes two detection tubes that can be close to each other and form a closed space;

[0006] It also includes a detection component, which is used to perform electrical detection on the biogas slurry in the enclosed space.

[0007] Preferably, the detection tube includes a fixed tube, a through hole is formed in the side wall of the sliding tube, and the fixed tube is slidably installed in the through hole, and a sliding rod is slidably installed in the fixed tube, a hose is connected to the side wall of the fixed tube, the hose is an elastic tube, and has an elastic force to bend upward, the part of the hose passing through the side wall of the sliding tube is connected to a moving tube, a detection chamber is provided in the moving tube, an annular groove is formed in the through hole, a fixing ring slidably installed in the annular groove is fixed to the outer wall of the fixed tube, and a spring is provided between the side wall of the fixing ring and the side wall of the annular groove;

[0008] The sampling assembly also includes a driving assembly, which is used to drive the sliding rod to slide back and forth in the fixed tube.

[0009] Preferably, the driving assembly comprises a connecting block fixedly mounted on the end of the sliding rod, the connecting block is connected to a spring sheet via a pin, and one end of the spring sheet is connected to the side wall of the sliding cylinder;

[0010] The driving assembly also includes a rotating assembly for causing the elastic sheet to swing back and forth.

[0011] Preferably, the rotating assembly includes two fixing frames fixed on the top surface of the partition plate, and rotators are rotatably mounted on the two fixing frames, and the two rotators can rotate relative to each other. The outer diameter of the rotator is divided into three parts: large, medium and small. A connecting rod is rotatably mounted on the side wall of the rotator, and one end of the connecting rod is rotatably mounted on the outer wall of the sliding cylinder.

[0012] Preferably, the detection component includes a power-carrying sheet fixedly installed between the hose and the detection chamber, and the power-carrying sheet is electrically connected to the detection chamber. It also includes a metal sheet installed at the end of the sliding rod and capable of abutting against the power-carrying sheet. A circuit that electrically connects the metal sheet and the spring sheet is installed in the sliding rod. The side wall of the rotator with the largest outer diameter is provided with a metal strip that can carry electricity, and the metal strip is connected to an external power circuit.

[0013] Preferably, a bottom ring is fixedly installed on the inner wall of the fermentation tank near the bottom, a first motor is fixedly installed on the bottom surface of the bottom ring, a rotating rod is fixedly installed on the outer wall of the part where the power shaft of the first motor passes through the bottom ring, and a plurality of long fan blades are fixed on the outer wall of the rotating rod.

[0014] Preferably, a partition is fixedly installed on the inner wall of the fermentation tank near the bottom, a fixed block is fixedly installed on the top surface of the partition, side panels are fixedly installed on both sides of the fixed block, a square ring is rotatably installed between the two side plates, the inner wall of the square ring is rotatably connected to an inclined column via a connecting shaft, a second motor is fixedly installed on the bottom surface of the partition, a power shaft of the second motor passes through the end of the fixed block and is fixed with a curved plate, the inclined portion of the curved plate is rotatably connected to the bottom end of the inclined column, the inclined column is also coaxially fixed with a fixed rod, and a plurality of short fan blades are fixedly installed on the outer wall of the fixed rod.

[0015] Preferably, a filter screen is fixedly installed at the bottom end of the sliding cylinder.

[0016] Preferably, an annular protrusion is provided on the inner wall of the sliding cylinder, and the inner diameter of the annular protrusion is smaller than the inner diameter of the sliding cylinder near the upper part.

[0017] Preferably, the connected ends of the two moving tubes are respectively configured as a protrusion and a groove, and a sealing ring is provided in the groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention samples the fermenting biogas slurry in a closed fermentation tank for multiple times and performs conductivity detection on the samples. The fermentation degree, acid-base balance, etc. of the biogas slurry can be inferred from the changes in conductivity, thereby adjusting the fermentation conditions in the fermentation tank in real time to ensure that the fermentation rate is at a high level. This not only avoids the damage to the sealing of the fermentation tank during conventional sampling, causing oxygen to enter the fermentation tank and reduce the activity of anaerobic bacteria in the tank, but also prevents the fermentation tank from being invaded by pollutants, so as to achieve the purpose of preventing external pollutants or bacterial flora from contaminating the biogas slurry in the tank or destroying the microbial community.

[0020] Second, the present invention places the conductivity detection in a closed space filled with biogas slurry, and cooperates with the movement of the mobile pipe mouth, so that the conductivity detection can eliminate the interference of other media on the detection result (for example, certain conductive components in the gas may affect the conductivity detection in the space), so that the detection result can more accurately reflect the ion concentration or pH change in the biogas slurry, thereby achieving the purpose of real-time monitoring of the biogas slurry in the fermentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a cross-sectional view of the detection tubes of the present invention before they are close to each other;

[0023] Figure 3 It is a cross-sectional view of the detection tubes of the present invention after being close to each other;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the sampling assembly of the present invention;

[0025] Figure 5 For the present invention Figure 2 The enlarged view of point A in the middle;

[0026] Figure 6 For the present invention Figure 3 The enlarged view of point B in the middle;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention;

[0029] Fig. 9 is a cross-sectional view of the detection tube of the present invention;

[0030] Fig.10 For the present invention Figure 4 Enlarged view of point C in the figure.

[0031] In the figure: 1. fermentation tank; 2. fixed plug; 3. partition plate; 4. sliding cylinder; 5. connecting rod; 6. rotator; 7. spring; 8. filter screen; 9. first motor; 10. rotating rod; 11. long fan; 12. fixed frame; 13. connecting block; 14. pin shaft; 15. sliding rod; 16. fixed pipe; 17. spring; 18. fixed ring; 19. hose; 20. detection chamber; 21. power supply sheet; 22. fixed block; 23. side plate; 24. square ring; 25. fixing rod; 26. short fan; 27. moving pipe; 28. bottom ring; 29. ​​inclined column; 30. second motor; 31. curved plate; 32. partition; 33. metal strip. DETAILED DESCRIPTION

[0032] 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.

[0033] See also Figures 1 to 10The present invention provides a technical solution: a bio-organic fertilizer biogas slurry fermentation device, comprising a fermentation tank 1, a fixed plug 2 is fixedly installed on the top wall of the fermentation tank 1, a partition plate 3 is fixedly installed on the inner side wall of the fermentation tank 1, a hole is opened in the center of the partition plate 3, and a sliding cylinder 4 that can slide up and down is provided in the hole, a sampling assembly is provided in the sliding cylinder 4, and the sampling assembly includes two detection tubes that can be close to each other and form a closed space;

[0034] It also includes a detection component, which is used for conducting electrical detection on the biogas slurry in the enclosed space.

[0035] Conductivity is a physical quantity that describes the electrical conductivity of a substance. It can be used to measure the ion concentration and dissolved matter content in the fermentation liquid, and is of great significance for the control and monitoring of the fermentation process. During the fermentation process, conductivity can be used as an important monitoring indicator. By monitoring the changes in conductivity, the ion concentration, dissolved matter content and acid-base balance during the fermentation process can be determined, so as to adjust the fermentation conditions in real time and ensure the smooth progress of the fermentation process. Therefore, by monitoring the conductivity of the fermenting biogas slurry in a confined space, the device can monitor the fermentation status of the biogas slurry in real time while avoiding pollution in the confined space. The specific implementation method is as follows:

[0036] When the device is in use, the sliding cylinder 4 is first driven downward by the external structure. Since the space formed by the side wall of the sliding cylinder 4 and the bottom surface of the fixed plug 2 becomes larger, the air pressure in the space is reduced, and the biogas slurry below is sucked into the sliding cylinder 4 by the air pressure. Then, the two detection tubes are driven to approach each other through the external component. In the process of approaching each other, the tube mouths of the two detection tubes gradually move downward and are immersed in the biogas slurry until the two detection tubes fit together to form a closed space. Then, the sliding cylinder 4 moves upward to move the two detection tubes out of the biogas slurry, and then the detection component is started. The conductivity of the biogas slurry in the closed space of the detection component is detected. Since the conductivity is proportional to the ion concentration in the liquid, when the ion concentration increases, the conductivity will also increase. Therefore, the increase in conductivity means that the ion concentration in the fermentation liquid increases. The fermentation condition of the fermentation liquid can be judged by multiple conductivity tests. Then, the two detection tubes can be driven to move away from each other and open, so that the biogas slurry sample falls back to the fermentation place to continue fermentation.

[0037] In this way, by sampling the fermenting biogas slurry in the closed fermentation tank 1 for multiple times and testing the conductivity of the samples, the fermentation degree, acid-base balance, etc. of the biogas slurry can be inferred from the changes in conductivity, so as to adjust the fermentation conditions in the fermentation tank 1 in real time to ensure that the fermentation rate is at a high level. This not only avoids the damage to the sealing of the fermentation tank 1 during conventional sampling, causing oxygen to enter the fermentation tank 1 and reduce the activity of anaerobic bacteria in the tank, but also prevents the fermentation tank 1 from being invaded by pollutants, so as to achieve the purpose of preventing external pollutants or bacteria from contaminating the biogas slurry in the tank or destroying the microbial community.

[0038] Further, the detection tube includes a fixed tube 16, a through hole is opened in the side wall of the sliding tube 4, and the fixed tube 16 is slidably installed in the through hole, and a sliding rod 15 is slidably installed in the fixed tube 16, a hose 19 is connected to the side wall of the fixed tube 16, the hose 19 is an elastic tube, and has an elastic force to bend upward, and the part of the hose 19 passing through the side wall of the sliding tube 4 is connected to a mobile tube 27, and a detection chamber 20 is arranged in the mobile tube 27, and an annular groove is opened in the through hole, and a fixed ring 18 slidably installed in the annular groove is fixed to the outer wall of the fixed tube 16, and a spring 17 is arranged between the side wall of the fixed ring 18 and the side wall of the annular groove;

[0039] The sampling assembly further comprises a driving assembly, which is used to drive the sliding rod 15 to slide back and forth in the fixed tube 16 .

[0040] According to the above embodiment, when the driving assembly drives the sliding rod 15 to slide from the fixed tube 16 to the hose 19, the hose 19 gradually moves downward due to the limit of the sliding rod 15, driving the opening of the moving tube 27 to gradually move downward. Figure 3 , until the two groups of moving tubes 27 are on the same horizontal line. Since the tube mouths of the moving tubes 27 have been immersed in the biogas slurry before being in the horizontal state during the downward movement of the tube mouths, the gas in the detection chamber 20 can be discharged along the inclined inner wall of the moving tube 27, so that the detection chamber 20 is only filled with the biogas slurry to be detected. When the sliding rod 15 continues to slide until the side wall abuts against the side wall of the detection chamber 20, the sliding rods 15 on both sides push the two groups of moving tubes 27 on the same horizontal line to approach each other until the two moving tubes 27 fit together, so that the two detection chambers 20 together form a closed space. After the detection is completed, the two sliding rods 15 can be driven to slide away from each other, and the elasticity of the spring 17 and the hose 19 can be used to drive the two detection tubes to reset together.

[0041] In this way, by placing the conductivity detection in a closed space filled with biogas slurry, and coordinating the movement of the mouth of the movable tube 27, the conductivity detection can eliminate the interference of other media on the detection result (for example, certain conductive components in the gas may affect the conductivity detection in the space), so that the detection result can more accurately reflect the ion concentration or pH change in the biogas slurry, thereby achieving the purpose of real-time monitoring of the biogas slurry in the fermentation tank 1.

[0042] Furthermore, the driving assembly includes a connecting block 13 fixedly mounted on the end of the sliding rod 15, the connecting block 13 is connected to a spring piece 7 via a pin shaft 14, and one end of the spring piece 7 is connected to the side wall of the sliding cylinder 4;

[0043] The driving assembly also includes a rotating assembly for causing the elastic sheet 7 to swing back and forth.

[0044] According to the above embodiment, a specific embodiment of a driving component is provided. When the rotating component drives the spring piece 7 to swing back and forth, it will drive the connecting block 13 to move together through the pin shaft 14, so that when the spring piece 7 swings toward one side of the sliding cylinder 4, it will drive the connecting block 13 to drive the sliding rod 15 to slide toward the inside of the sliding cylinder 4, and eliminate the rotation difference through the pin shaft 14, so as to achieve the purpose of driving the two groups of moving tubes 27 to approach each other and form a closed space as mentioned above. When the spring piece 7 swings in the opposite direction, it will drive the sliding rod 15 to reset. At this time, with the elasticity of the spring 17 and the hose 19, the two detection tubes can be driven to reset together.

[0045] In this way, by driving the spring piece 7 to swing back and forth through the rotating assembly, the purpose of bringing the two groups of detection tubes closer to each other or opening them can be achieved, thereby providing power for the operation of the sampling device mentioned above.

[0046] Furthermore, the rotating assembly includes two fixed frames 12 fixed on the top surface of the partition plate 3, and rotators 6 are rotatably installed on the two fixed frames 12, and the two rotators 6 can rotate relative to each other. The outer diameter of the rotator 6 is divided into three parts: large, medium and small. A connecting rod 5 is rotatably installed on the side wall of the rotator 6, and one end of the connecting rod 5 is rotatably installed on the outer wall of the sliding cylinder 4.

[0047] According to the above embodiment, a specific embodiment of a rotating assembly is provided. Figure 4When the two rotators 6 are driven by an external structure (such as a motor) to rotate relative to each other, the small diameter portion of the rotator 6 rotates to the side of the spring sheet 7 and does not contact the spring sheet 7, and the connecting rod 5 rotates on the side of the rotator 6 to pull the sliding tube 4 to move downward. When the rotator 6 continues to rotate, the middle diameter portion of the rotator 6 abuts against the spring sheet 7 and pushes the spring sheet 7 to swing toward the sliding tube 4, driving the sliding rod 15 to slide in the fixed tube 16 while pulling the sliding tube 4 to slide further downward. When the rotator 6 rotates so that its large diameter portion contacts the spring sheet 7, the sliding rod 15 slides further at this time, causing the moving tubes 27 on both sides to fit together to form a closed space, see Figure 3 As shown, at this time, the sliding cylinder 4 moves to the bottom and is immersed in the biogas slurry. When the rotator 6 continues to rotate, the connecting rod 5 drives the sliding cylinder 4 to move upward. When the end of the large diameter part of the rotator 6 is about to break away from the spring piece 7, the sliding cylinder 4 and the internal detection tube are separated from the biogas slurry, and then the detection component is powered on for detection.

[0048] After the detection is completed, the rotator 6 continues to rotate to make the large diameter portion separate from the spring sheet 7, and then the spring sheet 7 swings in the opposite direction to reset under the action of its own elastic force, and pulls the sliding rod 15 to reset.

[0049] In this way, by rotating the arc surfaces of large, medium and small different outer diameters on the rotator 6 from the side of the spring piece 7 in turn, the spring piece 7 can be driven to swing back and forth with the connection between it and the sliding cylinder 4 as the center, and the sliding cylinder 4 can be pulled by the connecting rod 5 to slide up and down in the center of the interlayer plate 3, so as to achieve the purpose of swinging the spring piece 7 and sliding the sliding cylinder 4.

[0050] Furthermore, the detection component includes a power-carrying sheet 21 fixedly installed between the hose 19 and the detection chamber 20, and the power-carrying sheet 21 is electrically connected to the detection chamber 20. It also includes a metal sheet installed at the end of the sliding rod 15 and capable of abutting against the power-carrying sheet 21. A circuit that electrically connects the metal sheet and the spring sheet 7 is installed in the sliding rod 15. The side wall with the largest outer diameter of the rotator 6 is provided with a metal strip 33 that can be electrified, and the metal strip 33 is connected to an external power circuit.

[0051] It can be seen from the above content that when the end of the large diameter part of the rotator 6 is about to be separated from the spring 7, the sliding cylinder 4 and the internal detection tube are separated from the biogas slurry. Therefore, by installing a metal strip 33 at the end of the large diameter part of the rotator 6, the metal strip 33 is in contact with the spring 7. At this time, the external power circuit energizes the power-on sheet 21 through the spring 7, the circuit in the sliding rod 15 and the metal sheet. By detecting the voltage difference on both sides of the detection tube, the ion concentration and pH value in the biogas slurry at the current stage can be determined, and through multiple sampling tests, it can be judged whether the microbial activity in the fermentation tank 1 is good, and it is avoided that the power circuit is energized before the two detection tubes are closed to each other, so that the accuracy or stability of the test results is insufficient.

[0052] Embodiment 1: Provides a specific implementation method of biogas slurry stirring;

[0053] Furthermore, a bottom ring 28 is fixedly installed on the inner wall of the fermentation tank 1 near the bottom, a first motor 9 is fixedly installed on the bottom surface of the bottom ring 28, a rotating rod 10 is fixedly installed on the outer wall of the part where the power shaft of the first motor 9 passes through the bottom ring 28, and a plurality of long fan blades 11 are fixed on the outer wall of the rotating rod 10.

[0054] According to the above embodiment, the first motor 9 is driven to drive the rotating rod 10 to rotate together, and the plurality of long fan blades 11 are driven to rotate together in the fermentation tank 1 to stir the fermenting biogas slurry. Figure 7 By vertically setting the axis of rotation, a vortex is generated in the center of the biogas slurry under the action of the long fan blades 11, and the suspended matter on the surface of the biogas slurry is separated to the inner wall of the fermentation tank 1 by the action of centrifugal force, so that the suspended matter can be prevented from entering the sliding cylinder 4 when the sliding cylinder 4 slides downward.

[0055] In this way, the suspended matter on the surface of the biogas slurry is separated from the biogas slurry in the center by rotating and stirring the axis, so that the suspended matter can be prevented from entering the sliding cylinder 4 when the sliding cylinder 4 slides downward, so that only biogas slurry exists inside when the two moving tubes 27 are close to each other to form a sealed space, thereby preventing the suspended matter from affecting the power-on detection in the closed space and causing errors in the detection results.

[0056] Embodiment 2: provides a second specific method of stirring biogas slurry;

[0057] Furthermore, a partition 32 is fixedly installed on the inner wall near the bottom of the fermentation tank 1, a fixed block 22 is fixedly installed on the top surface of the partition 32, side panels 23 are fixedly installed on both sides of the fixed block 22, a square ring 24 is rotatably installed between the two side panels 23, the inner wall of the square ring 24 is rotatably connected to an inclined column 29 arranged obliquely through a connecting shaft, a second motor 30 is fixedly installed on the bottom surface of the partition 32, a power shaft of the second motor 30 passes through the end of the fixed block 22 and is fixed with a curved plate 31, the inclined portion of the curved plate 31 is rotatably connected to the bottom end of the inclined column 29, the inclined column 29 is also coaxially fixedly installed with a fixed rod 25, and a plurality of short fan blades 26 are fixedly installed on the outer wall of the fixed rod 25.

[0058] According to the above embodiment, when the second motor 30 rotates, the curved plate 31 is driven to rotate together through the driving shaft, and the inclined column 29 is driven by the curved plate 31 to stir in a conical manner in the fermentation tank 1. The inclined column 29 is restricted by the fixed block 22 and the square ring 24 to keep the center of gravity unchanged, so that the biogas slurry in the fermentation tank 1 continuously produces irregular water flow, and the microorganisms, nutrients, etc. in the biogas slurry are more evenly distributed, so that each part of the biogas slurry can fully participate in the reaction during the fermentation process, thereby improving the fermentation rate and maintaining the uniformity of the temperature of each part of the biogas slurry.

[0059] Furthermore, a filter screen 8 is fixedly mounted on the bottom end of the sliding cylinder 4 .

[0060] According to the above embodiment, when the sliding cylinder 4 moves downward, the biogas slurry entering the sliding cylinder 4 is filtered by the filter screen 8, and the biogas slurry entering the detection chamber 20 is further purified, thereby improving the accuracy of the detection result.

[0061] Furthermore, an annular protrusion is provided on the inner wall of the sliding cylinder 4 , and the inner diameter of the annular protrusion is smaller than the inner diameter of the sliding cylinder 4 near the upper part.

[0062] According to the above embodiment, the annular protrusion can raise the water level of the biogas slurry entering the sliding cylinder 4 to ensure that the water level exceeds the pipe opening of the moving pipe 27, thereby preventing the biogas slurry from entering the detection chamber 20 or causing the gas in the detection chamber 20 to be unable to be completely discharged, so that the power-on detection cannot be carried out normally.

[0063] Furthermore, the connected ends of the two moving tubes 27 are respectively configured as a protrusion and a groove, and a sealing ring is provided in the groove.

[0064] According to the above embodiment, when two horizontal moving tubes 27 approach each other, the protrusions and grooves can make the two moving tubes 27 fit more closely, and the sealing ring can ensure the sealing of the sealed space, so that the error of the detection result is further reduced.

[0065] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bio-organic fertilizer biogas slurry fermentation device, comprising a fermentation tank (1), characterized in that: A fixed plug (2) is fixedly mounted on the top wall of the fermentation tank (1), and a partition plate (3) is fixedly mounted on the inner side wall of the fermentation tank (1). A hole is formed in the center of the partition plate (3), and a sliding cylinder (4) capable of sliding up and down is provided in the hole. A sampling assembly is provided in the sliding cylinder (4), and the sampling assembly comprises two detection tubes that can be close to each other and form a closed space. It also includes a detection component, which is used to perform electrical detection on the biogas slurry in the confined space; The detection tube comprises a fixed tube (16), a through hole is formed in the side wall of the sliding tube (4), the fixed tube (16) is slidably installed in the through hole, a sliding rod (15) is slidably installed in the fixed tube (16), a hose (19) is connected to the side wall of the fixed tube (16), the hose (19) is an elastic tube and has an elastic force to bend upward, a portion of the hose (19) passing through the side wall of the sliding tube (4) is connected to a moving tube (27), a detection chamber (20) is provided in the moving tube (27), an annular groove is formed in the through hole, a fixed ring (18) is fixed to the outer wall of the fixed tube (16) and slidably installed in the annular groove, and a spring (17) is provided between the side wall of the fixed ring (18) and the side wall of the annular groove; The sampling assembly further comprises a driving assembly, wherein the driving assembly is used to drive the sliding rod (15) to slide back and forth in the fixed tube (16); The driving assembly comprises a connecting block (13) fixedly mounted on the end of a sliding rod (15); the connecting block (13) is connected to a spring sheet (7) via a pin shaft (14); one end of the spring sheet (7) is connected to a side wall of the sliding cylinder (4); The driving assembly further comprises a rotating assembly for causing the spring sheet (7) to swing back and forth; The rotating assembly comprises two fixing frames (12) fixed on the top surface of the partition plate (3), and a rotator (6) is rotatably mounted on each of the two fixing frames (12), and the two rotators (6) can rotate relative to each other, and the outer diameter of the rotator (6) is divided into three parts: large, medium and small. A connecting rod (5) is rotatably mounted on the side wall of the rotator (6), and one end of the connecting rod (5) is rotatably mounted on the outer wall of the sliding cylinder (4); The detection assembly comprises a power-carrying sheet (21) fixedly mounted between the hose (19) and the detection chamber (20), and the power-carrying sheet (21) is electrically connected to the detection chamber (20), and also comprises a metal sheet mounted at the end of the sliding rod (15) and capable of abutting against the power-carrying sheet (21), a circuit for electrically connecting the metal sheet and the spring sheet (7) is mounted in the sliding rod (15), and a metal strip (33) capable of carrying electricity is provided on the side wall with the largest outer diameter of the rotator (6), and the metal strip (33) is connected to an external power-carrying circuit.

2. The bio-organic fertilizer biogas slurry fermentation device according to claim 1, characterized in that: A bottom ring (28) is fixedly mounted on the inner wall of the fermentation tank (1) near the bottom, a first motor (9) is fixedly mounted on the bottom surface of the bottom ring (28), a rotating rod (10) is fixedly mounted on the outer wall of a portion of the bottom ring (28) where the power shaft of the first motor (9) passes through, and a plurality of long fan blades (11) are fixedly mounted on the outer wall of the rotating rod (10).

3. The bio-organic fertilizer biogas slurry fermentation device according to claim 1, characterized in that: A partition (32) is fixedly mounted on the inner wall of the fermentation tank (1) near the bottom, a fixed block (22) is fixedly mounted on the top surface of the partition (32), side plates (23) are fixedly mounted on both sides of the fixed block (22), a square ring (24) is rotatably mounted between the two side plates (23), the inner wall of the square ring (24) is rotatably connected to an inclined column (29) arranged obliquely via a connecting shaft, a second motor (30) is fixedly mounted on the bottom surface of the partition (32), a power shaft of the second motor (30) passes through the end of the fixed block (22) and is fixed with a curved plate (31), the inclined surface portion of the curved plate (31) is rotatably connected to the bottom end of the inclined column (29), the inclined column (29) is also coaxially fixedly mounted with a fixed rod (25), and a plurality of short fan blades (26) are fixedly mounted on the outer wall of the fixed rod (25).

4. The bio-organic fertilizer biogas slurry fermentation device according to any one of claims 1 to 3, characterized in that: A filter screen (8) is fixedly mounted on the bottom end of the sliding cylinder (4).

5. The bio-organic fertilizer biogas slurry fermentation device according to any one of claims 1 to 3, characterized in that: An annular protrusion is provided on the inner wall of the sliding cylinder (4), and the inner diameter of the annular protrusion is smaller than the inner diameter of the sliding cylinder (4) near the top.

6. The bio-organic fertilizer biogas slurry fermentation device according to claim 1, characterized in that: The connected ends of the two moving tubes (27) are respectively configured as a protrusion and a groove, and a sealing ring is provided in the groove.

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