A device for preparing bio-organic fertilizer based on straw-based biogas residue waste liquid

Abstract

The application discloses a kind of based on straw's biogas residue waste liquid preparation biological organic fertilizer device, belong to organic fertilizer preparation technical field, including jar body, the top wall of the jar body is fixedly installed with mounting plate, the top wall of the mounting plate is fixedly installed with mounting cylinder, the mounting cylinder is equipped with mixing component.This scheme is moved up by setting mixing rod under the action of pressure, and stretchable tube is stretched, and under the action of stretchable tube, linkage disc cannot rotate, then in the process that linkage disc moves up, slider is moved up along rotating groove, and in the process that slider is moved up along rotating groove, slider will drive vertical rod to rotate by rotating groove, then in the process that vertical rod rotates, mixing rod is rotated, and in the process that mixing rod rotates, raw materials in jar body can be stirred, so that raw materials are fully contacted with oxygen, to improve fermentation effect, to improve the role of fertilizer product quality.

Description

Technical Field

[0001] This invention relates to the field of organic fertilizer preparation technology, and more specifically, to an apparatus for preparing bio-organic fertilizer from straw-based biogas residue waste liquid. Background Technology

[0002] Straw, a large amount of waste generated in agricultural production, is not only wasted resources but also causes environmental pollution due to traditional treatment methods (such as burning and discarding). However, biogas projects using straw as raw material produce a large amount of biogas residue and biogas slurry (collectively referred to as "biogas residue wastewater"), which is rich in organic matter, nitrogen, phosphorus, potassium, and trace elements, making it a high-quality raw material for preparing bio-organic fertilizer. Utilizing biogas residue wastewater to prepare bio-organic fertilizer can achieve efficient resource utilization of straw, solve the problem of agricultural waste pollution, and provide high-quality organic fertilizer for the soil, aligning with the development direction of "circular agriculture" and "green agriculture."

[0003] When preparing bio-organic fertilizer using biogas residue waste liquid, the biogas residue first needs to be dehydrated using a screw press, belt filter press, or natural drainage. Then, the crushed dry straw (3-5cm in length) is mixed with the dehydrated biogas residue in a certain ratio (usually biogas residue: straw ratio of 3:1 to 5:1, adjusted according to actual humidity). The separated biogas liquid is used as a liquid to adjust moisture and supplement nutrients, and is sprayed back into the mixture to replace clean water, achieving "zero wastewater discharge". Finally, aerobic fermentation is carried out to form high-quality organic fertilizer.

[0004] In existing organic fertilizer aerobic fermentation, the prepared raw materials are mostly poured into a fermentation tank for fermentation, and then air is injected into the fermentation tank through an air pipe at the bottom. However, because the raw materials are piled up together, they cannot fully contact oxygen, which affects the fermentation effect. In addition, if the raw materials are piled up together for a long time, they are prone to clumping, which seriously affects the quality of the finished fertilizer. Summary of the Invention

[0005] To address the problems existing in the prior art, the purpose of this invention is to provide a device for preparing bio-organic fertilizer from biogas residue waste liquid based on straw, which can improve the quality of the finished fertilizer product.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] An apparatus for preparing bio-organic fertilizer from straw-based biogas residue waste liquid includes a tank, an mounting plate fixedly installed on the top wall of the tank, an mounting cylinder fixedly installed on the top wall of the mounting plate, and a mixing component provided on the mounting cylinder;

[0008] The mixing component includes a communication port on the mounting plate, which communicates with the mounting cylinder. A filter plate is fixedly installed inside the communication port. A linkage disc is slidably and sealed inside the mounting cylinder. A vertical rod is rotatably installed on the filter plate. Mixing rods are uniformly fixedly installed on the vertical rod. A rotating groove is provided on the vertical rod. A slider that slides with the rotating groove is fixedly installed on the linkage disc. An mounting plate is fixedly installed on the top wall of the filter plate. A telescopic tube is fixedly installed between the top wall of the mounting plate and the linkage disc. A pressure relief component is provided on the mounting plate.

[0009] Furthermore, the pressure relief assembly includes a purification cylinder fixedly installed on the top wall of the mounting plate. The mounting plate has a pressure relief groove communicating with the purification cylinder. The mounting plate has a horizontal groove. A sealing plate for sealing the pressure relief groove is slidably installed in the horizontal groove. The sealing plate has a connecting groove communicating with the pressure relief groove. A first spring is installed between the sealing plate and the pressure relief groove.

[0010] Furthermore, an arc-shaped plate is vertically slidably mounted on the side wall of the mounting cylinder, and a second spring is installed between the top wall of the arc-shaped plate and the mounting cylinder. A first air pipe communicating with the mounting cylinder is inserted into the horizontal groove, and a communication hole communicating with the first air pipe is opened on the arc-shaped plate. A reset component that cooperates with the sealing plate is provided on the mounting plate.

[0011] Furthermore, the reset assembly includes a vertical hole on the top wall of the horizontal groove, a linkage groove on the mounting plate, a first magnet plate horizontally and slidably installed in the linkage groove, a third spring installed between the first magnet plate and the linkage groove, an air hole communicating with the vertical hole on the first magnet plate, a second magnet plate that repels the first magnet plate embedded in the linkage disc, a one-way valve with its input end communicating with the outside installed on the mounting cylinder, and a reset spring between the top wall of the linkage disc and the mounting cylinder.

[0012] Furthermore, an air intake valve is inserted into the linkage plate, and a second air pipe communicating with the outside is fixedly installed on the input end of the air intake valve. A first air filling groove is opened on the vertical rod, and an exhaust valve with its input end communicating with the telescopic pipe is inserted into the first air filling groove. A second air filling groove communicating with the first air filling groove is opened on the mixing rod, and holes are evenly opened on the second air filling groove.

[0013] Furthermore, a disc is vertically slidably mounted on the mounting cylinder, a mounting rod is fixedly mounted on the disc, a ring is fixedly mounted on the mounting rod, and a return spring is installed between the ring and the linkage disc. A threaded rod that is threadedly engaged with the mounting cylinder is rotatably mounted on the ring.

[0014] Furthermore, a friction ring is fixedly installed on the mounting cylinder, a friction rod is horizontally slidably installed on the vertical rod, and a fourth spring is installed between the friction rod and the vertical rod.

[0015] Furthermore, the tank body is provided with a discharge trough, an auger is rotatably installed in the discharge trough, a motor with its output end fixedly connected to the auger is installed on the tank body, a discharge pipe communicating with the discharge trough is fixedly installed on the tank body, and a stopper plate is detachably installed on the discharge pipe.

[0016] Furthermore, a limiting rod that slides vertically with the arc-shaped plate is fixedly installed on the inner top wall of the mounting cylinder.

[0017] Furthermore, a filter screen is fixedly installed inside the pressure relief groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) This scheme sets up a mixing rod. Under the action of pressure, the linkage plate will move upward and stretch the telescopic tube. Under the action of the telescopic tube, the linkage plate cannot rotate. Then, during the upward movement of the linkage plate, the slider will move upward along the rotating groove. During the upward movement of the slider along the rotating groove, the slider will drive the vertical rod to rotate through the rotating groove. Then, during the rotation of the vertical rod, the mixing rod will rotate. During the rotation of the mixing rod, the raw materials in the tank can be stirred, so that the raw materials can fully contact oxygen, thereby improving the fermentation effect and improving the quality of the fertilizer product.

[0020] (2) By setting up a pressure relief component, the gas in the installation cylinder above the linkage plate is squeezed during the upward movement of the linkage plate. When the linkage plate connects with the first gas pipe through the arc plate, the gas in the installation cylinder above the linkage plate flows into the horizontal groove through the connecting hole and the first gas pipe. It also connects with the pressure relief groove through the sealing plate. At this time, the high pressure exhaust gas in the tank can flow to the purification cylinder through the pressure relief groove and the connecting groove. After being purified by the purification cylinder, it flows to the outside, thereby avoiding air pollution from exhaust gas. At the same time, it can also avoid excessive exhaust gas in the tank affecting the aerobic fermentation effect, which would lead to a decrease in the quality of the finished fertilizer product and further improve the quality of the finished fertilizer product.

[0021] (3) By opening holes, the telescopic tube draws air from the outside through the air inlet valve and the second air pipe during the upward movement of the linkage plate. Then, during the downward movement of the linkage plate, the telescopic tube contracts. At this time, the airflow in the telescopic tube flows to the first air filling tank through the exhaust valve and then to the second air filling tank through the first air filling tank. Then, during the rotation of the mixing rod driven by the vertical rod, the airflow flows evenly into the raw materials through the holes on the mixing rod, thereby ensuring that oxygen is fully in contact with the raw materials, effectively improving the fermentation effect and further improving the quality of the finished fertilizer. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 For the present invention Figure 3 Enlarged view at point B in the middle;

[0026] Figure 5 This is an assembly diagram of the linkage plate, vertical rod, return spring, telescopic tube, and mounting plate of the present invention;

[0027] Figure 6 This is a combined diagram of the vertical rod, slider, and rotating groove of the present invention;

[0028] Figure 7 This is a cross-sectional view of the mounting plate, telescopic tube, and first air filling tank of the present invention;

[0029] Figure 8 This is a top sectional view of the vertical rod, friction ring, and friction rod of the present invention;

[0030] Figure 9 This is a diagram showing the combination of the sealing plate and the connecting groove of the present invention.

[0031] Explanation of the labels in the diagram:

[0032] 1. Tank body; 2. Mounting plate; 3. Mounting cylinder;

[0033] 4. Mixing assembly; 401. Filter plate; 402. Linkage disc; 403. Vertical rod; 404. Mixing rod; 405. Rotary groove; 406. Slider; 407. Mounting disc; 408. Telescopic tube;

[0034] 5. Pressure relief assembly; 501. Purification cylinder; 502. Pressure relief groove; 503. Horizontal groove; 504. Sealing plate; 505. Connecting groove; 506. First spring;

[0035] 601. Arc-shaped plate; 602. Second spring; 603. First air pipe; 604. Connecting hole;

[0036] 7. Reset assembly; 701. Vertical hole; 702. First magnet plate; 703. Third spring; 704. Air hole; 705. Second magnet plate; 706. One-way valve; 707. Reset spring;

[0037] 801. Intake valve; 802. Second air pipe; 803. First air filling tank; 804. Exhaust valve; 805. Second air filling tank; 806. Hole;

[0038] 901, disc; 902, mounting rod; 903, ring; 904, threaded rod; 905, friction ring; 906, friction rod; 907, fourth spring;

[0039] 10. Screwdriver; 11. Motor; 12. Discharge pipe; 13. Stopper plate; 14. Limiting rod; 15. Filter screen. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] Please see Figures 1 to 9 An apparatus for preparing bio-organic fertilizer from straw-based biogas residue waste liquid includes a tank 1, an mounting plate 2 fixedly installed on the top wall of the tank 1, an mounting cylinder 3 fixedly installed on the top wall of the mounting plate 2, and a mixing component 4 provided on the mounting cylinder 3.

[0042] The mixing component 4 includes a communication port on the mounting plate 2, which communicates with the mounting cylinder 3. A filter plate 401 is fixedly installed in the communication port. A linkage disk 402 is slidably and sealed in the mounting cylinder 3. A vertical rod 403 is rotatably installed on the filter plate 401. A mixing rod 404 is uniformly fixedly installed on the vertical rod 403. A rotating groove 405 is provided on the vertical rod 403. A slider 406 that slides with the rotating groove 405 is fixedly installed on the linkage disk 402. An mounting disk 407 is fixedly installed on the top wall of the filter plate 401. A telescopic tube 408 is fixedly installed between the top wall of the mounting disk 407 and the linkage disk 402. A pressure relief component 5 is provided on the mounting plate 2.

[0043] During use, the prepared raw materials are placed into tank 1. During aerobic fermentation, the respiration of microorganisms consumes oxygen, producing carbon dioxide, water vapor, and heat. Simultaneously, gases such as ammonia released from the decomposition of organic matter also mix in, gradually increasing the pressure inside tank 1. Under this pressure, the linkage disc 402 moves upward, stretching the telescopic tube 408. The linkage disc 402 cannot rotate under the action of the telescopic tube 408. As the linkage disc 402 moves upward, it drives the slider 406 to move upward along the rotating groove 405. During this upward movement, the slider 406 drives the vertical rod 403 to rotate via the rotating groove 405. The rotation of the vertical rod 403 then drives the mixing rod 404 to rotate. The rotation of the mixing rod 404 stirs the raw materials inside tank 1, ensuring sufficient contact between the raw materials and oxygen, thus improving the fermentation effect and enhancing the quality of the finished fertilizer.

[0044] like Figure 2 , Figure 3 , Figure 4 As shown, the pressure relief assembly 5 includes a purification cylinder 501 fixedly installed on the top wall of the mounting plate 2. The mounting plate 2 has a pressure relief groove 502 communicating with the purification cylinder 501. The mounting plate 2 has a horizontal groove 503. A sealing plate 504 for sealing the pressure relief groove 502 is slidably installed in the horizontal groove 503. The sealing plate 504 has a connecting groove 505 communicating with the pressure relief groove 502. A first spring 506 is installed between the sealing plate 504 and the pressure relief groove 502.

[0045] An arc-shaped plate 601 is vertically slidably mounted on the side wall of the mounting cylinder 3. A second spring 602 is installed between the top wall of the arc-shaped plate 601 and the mounting cylinder 3. A first air pipe 603 communicating with the mounting cylinder 3 is inserted into the horizontal groove 503. A connecting hole 604 communicating with the first air pipe 603 is opened on the arc-shaped plate 601. A reset component 7 cooperating with the sealing plate 504 is provided on the mounting plate 2.

[0046] The reset assembly 7 includes a vertical hole 701 on the top wall of the horizontal groove 503. The mounting plate 2 has a linkage groove. A first magnet plate 702 is horizontally and slidably sealed in the linkage groove. A third spring 703 is installed between the first magnet plate 702 and the linkage groove. The first magnet plate 702 has an air hole 704 that communicates with the vertical hole 701. A second magnet plate 705 that repels the first magnet plate 702 is embedded in the linkage disc 402. A one-way valve 706 with its input end communicating with the outside is installed on the mounting cylinder 3. A reset spring 707 is provided between the top wall of the linkage disc 402 and the mounting cylinder 3.

[0047] By adopting the above technical solution, during the upward movement of the linkage plate 402, the gas above the linkage plate 402 in the mounting cylinder 3 is compressed. Then, as the linkage plate 402 moves upward, it gradually contacts the arc plate 601 and drives the arc plate 601 to move upward. At this time, the second spring 602 is compressed and has a tendency to return to its original position. During the upward movement of the arc plate 601, the connecting hole 604 is connected to the first air pipe 603. At this time, the gas above the linkage plate 402 in the mounting cylinder 3 flows to the horizontal groove through the connecting hole 604 and the first air pipe 603. Inside 503, the sealing plate 504 is pushed to slide along the horizontal groove 503. At this time, the first spring 506 is stretched and has a tendency to recover. During the movement of the sealing plate 504, the connecting groove 505 is connected to the pressure relief groove 502. At this time, the high-pressure exhaust gas in the tank 1 can flow to the purification cylinder 501 through the pressure relief groove 502 and the connecting groove 505. After being purified by the purification cylinder 501, it flows to the outside, thereby avoiding exhaust gas pollution of the air. At the same time, it can also avoid excessive exhaust gas in the tank 1 from affecting the aerobic fermentation effect and causing the quality of the finished fertilizer to decline, thus further improving the quality of the finished fertilizer.

[0048] As the linkage plate 402 moves upward, it causes the second magnet plate 705 to move away from the first magnet plate 702. Then, the third spring 703 contracts and causes the air hole 704 on the first magnet plate 702 to disengage from the vertical hole 701. During the upward movement of the linkage plate 402, the return spring 707 is compressed and tends to return to its original position. Then, as the airflow inside the tank 1 flows to the outside through the pressure relief groove 502, the connecting groove 505, and the purification cylinder 501, the pressure inside the tank 1 gradually decreases. At this time, the return spring 707 contracts and... The linkage plate 402 moves downward, gradually disengaging from the arc-shaped plate 601. At this point, the second spring 602 extends and moves the arc-shaped plate 601 downward. During this downward movement, the connecting hole 604 disengages from the first air pipe 603. Then, as the linkage plate 402 moves downward, the space above the mounting cylinder 3 draws in gas from the outside through the one-way valve 706. Simultaneously, the linkage plate 402 moves the second magnetic plate 705 downward... As the magnetic plate moves downward, the distance between the second magnet plate 705 and the first magnet plate 702 decreases. When the linkage plate 402 reaches its lowest point, the repulsive force between the first magnet plate 702 and the second magnet plate 705 reaches its maximum, and at this time, the repulsive force between the first magnet plate 702 and the second magnet plate 705 is equal to the elastic force of the third spring 703. Then, under the action of the repulsive force, the first magnet plate 702 drives the air hole 704 to move and stretches the third spring 703. During the process of the first magnet plate 702 driving the air hole 704 to move, the air hole 704 gradually... When connected to the vertical hole 701, the airflow in the horizontal groove 503 flows to the outside through the vertical hole 701 and the air hole 704. Then, the pressure in the horizontal groove 503 gradually returns to normal. At this time, the first spring 506 contracts and drives the sealing plate 504 to reset. During the resetting process of the sealing plate 504, the connecting groove 505 is disengaged from the pressure relief groove 502, and the pressure relief groove 502 is sealed. This effectively prevents the tank 1 from being connected to the outside for a long time, which would affect the fermentation effect and cause the quality of the fertilizer product to decline. This further improves the quality of the fertilizer product.

[0049] like Figure 7 As shown, an air intake valve 801 is inserted into the linkage disc 402, and a second air pipe 802 communicating with the outside is fixedly installed on the input end of the air intake valve 801. A first air filling groove 803 is opened on the vertical rod 403, and an exhaust valve 804 with its input end communicating with the telescopic pipe 408 is inserted into the first air filling groove 803. A second air filling groove 805 communicating with the first air filling groove 803 is opened on the mixing rod 404, and holes 806 are evenly opened on the second air filling groove 805.

[0050] By adopting the above technical solution, during the upward movement of the linkage plate 402, the telescopic tube 408 draws air from the outside through the air inlet valve 801 and the second air pipe 802. Then, during the downward movement of the linkage plate 402, the telescopic tube 408 contracts. At this time, the airflow in the telescopic tube 408 flows to the first aeration tank 803 through the exhaust valve 804, and then flows to the second aeration tank 805 through the first aeration tank 803. Then, during the rotation of the mixing rod 404 driven by the vertical rod 403, the airflow flows evenly into the raw materials through the holes 806 on the mixing rod 404, thereby ensuring that oxygen is in full contact with the raw materials, effectively improving the fermentation effect, and further improving the quality of the finished fertilizer.

[0051] like Figure 1 , Figure 3 , Figure 8 As shown, a disc 901 is vertically slidably mounted on the mounting cylinder 3, a mounting rod 902 is fixedly mounted on the disc 901, a ring 903 is fixedly mounted on the mounting rod 902, and a return spring 707 is installed between the ring 903 and the linkage disc 402. A threaded rod 904 that is threadedly engaged with the mounting cylinder 3 is rotatably mounted on the ring 903.

[0052] A friction ring 905 is fixedly installed on the mounting cylinder 3, and a friction rod 906 is horizontally slidably installed on the vertical rod 403. A fourth spring 907 is installed between the friction rod 906 and the vertical rod 403.

[0053] By adopting the above technical solution, the friction rod 906 rotates during the rotation of the vertical rod 403. Then, under the action of centrifugal force, the friction rod 906 moves and stretches the fourth spring 907. During the movement of the friction rod 906, it contacts the friction ring 905, thereby increasing the resistance to the rotation of the vertical rod 403. This slows down the descent speed of the linkage disc 402, thereby improving the exhaust effect of the waste gas in the tank 1 and further improving the quality of the finished fertilizer.

[0054] Because the required fermentation temperature may vary at different stages of fermentation, the pressure inside tank 1 during depressurization will differ. When the required fermentation temperature is higher, the corresponding pressure inside tank 1 during depressurization will be higher. In this case, the operator can rotate the threaded rod 904, which will cause the mounting rod 902 to move downwards via the disc 901. During the downward movement of the mounting rod 902, the ring 903 will move downwards, and the top of the fourth spring 907 will move downwards. This increases the compression of the fourth spring 907 when the linkage disc 402 moves upwards, thus increasing the resistance when the linkage disc 402 moves upwards. Therefore, when the linkage disc 402 moves the arc plate 601 upwards, greater pressure is required. By rotating the threaded rod 904 to adjust the height of the ring 903, the pressure inside tank 1 during exhaust gas discharge can be adjusted, effectively improving the fermentation effect and further improving the quality of the finished fertilizer.

[0055] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a discharge trough is provided on the tank body 1, and an auger 10 is rotatably installed in the discharge trough. A motor 11 with its output end fixedly connected to the auger 10 is installed on the tank body 1. A discharge pipe 12 communicating with the discharge trough is fixedly installed on the tank body 1, and a stopper plate 13 is detachably installed on the discharge pipe 12.

[0056] A limiting rod 14 that slides vertically with the arc plate 601 is fixedly installed on the inner top wall of the mounting cylinder 3.

[0057] A filter screen 15 is fixedly installed inside the pressure relief groove 502.

[0058] By adopting the above technical solution, after the raw material fermentation is completed, the user can first open the stopper plate 13, then start the motor 11 and drive the auger 10 to rotate. During the rotation of the auger 10, the raw material can be moved to the outside through the discharge pipe 12 of the discharge trough, which makes it easier to pick up the material.

[0059] During the movement of the arc plate 601, the arc plate 601 can be limited by the limiting rod 14 that slides vertically with the arc plate 601, thereby preventing the arc plate 601 from deviating. In addition, the airflow entering the pressure relief groove 502 can be filtered by the filter screen 15, thereby preventing impurities from entering the purification cylinder 501 through the pressure relief groove 502 and causing the purification cylinder 501 to become blocked, affecting the normal discharge of waste gas, thus improving the stability of the device operation.

[0060] Instructions for use: First, place the adjusted raw materials into tank 1. Then, the ammonia and other gases released from the decomposition of organic matter will also mix in, causing the pressure inside tank 1 to gradually increase. Under the action of the pressure, the linkage disc 402 will move upward and stretch the telescopic tube 408. Under the action of the telescopic tube 408, the linkage disc 402 cannot rotate. Then, as the linkage disc 402 moves upward, it drives the slider 406 to move upward along the rotating groove 405. As the slider 406 moves upward along the rotating groove 405, it will drive the vertical rod 403 to rotate through the rotating groove 405. Then, as the vertical rod 403 rotates, it drives the mixing rod 404 to rotate.

[0061] During depressurization, as the linkage plate 402 moves upward, the gas above the linkage plate 402 in the mounting cylinder 3 is compressed. Then, as the linkage plate 402 moves upward, it gradually contacts the arc-shaped plate 601, causing the arc-shaped plate 601 to move upward. At this time, the second spring 602 is compressed and has a tendency to return to its original position. As the arc-shaped plate 601 moves upward, it causes the connecting hole 604 to connect with the first air pipe 603. At this time, the gas above the linkage plate 402 in the mounting cylinder 3... The gas flows into the horizontal groove 503 through the connecting hole 604 and the first air pipe 603, and pushes the sealing plate 504 to slide along the horizontal groove 503. At this time, the first spring 506 is stretched and has a tendency to return to its original state. During the movement of the sealing plate 504, the connecting groove 505 is connected to the pressure relief groove 502. At this time, the high-pressure exhaust gas in the tank 1 can flow to the purification cylinder 501 through the pressure relief groove 502 and the connecting groove 505, and then flow to the outside after being purified by the purification cylinder 501, thereby avoiding exhaust gas pollution of the air.

[0062] During oxygenation, as the linkage disc 402 moves upward, the telescopic pipe 408 draws air from the outside through the air inlet valve 801 and the second air pipe 802. Then, as the linkage disc 402 moves downward, the telescopic pipe 408 contracts. At this time, the airflow in the telescopic pipe 408 flows through the exhaust valve 804 to the first air filling tank 803, and then through the first air filling tank 803 to the second air filling tank 805. Then, as the vertical rod 403 drives the mixing rod 404 to rotate, the airflow flows evenly into the raw material through the holes 806 on the mixing rod 404.

[0063] Then, as the vertical rod 403 rotates, it drives the friction rod 906 to rotate. Under the action of centrifugal force, the friction rod 906 moves and stretches the fourth spring 907. During the movement of the friction rod 906, it comes into contact with the friction ring 905, thereby increasing the resistance to the rotation of the vertical rod 403, which in turn slows down the descent speed of the linkage disc 402.

[0064] Furthermore, when the fermentation temperature is high, the pressure inside tank 1 during depressurization is also high. At this time, the operator can rotate the threaded rod 904, which in turn drives the mounting rod 902 downward through the disc 901. During the downward movement of the mounting rod 902, the ring 903 moves downward, which in turn drives the top of the fourth spring 907 downward. This increases the compression of the fourth spring 907 when the linkage disc 402 moves upward, thus increasing the resistance when the linkage disc 402 moves upward. Therefore, when the linkage disc 402 drives the arc plate 601 upward, a greater pressure is required to adjust the pressure during exhaust gas discharge.

[0065] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. An apparatus for preparing bio-organic fertilizer from straw-based biogas residue wastewater, comprising a tank (1), characterized in that: An installation plate (2) is fixedly installed on the top wall of the tank (1), and an installation cylinder (3) is fixedly installed on the top wall of the installation plate (2). A mixing component (4) is provided on the installation cylinder (3). The mixing component (4) includes a communication port on the mounting plate (2), which is connected to the mounting cylinder (3). A filter plate (401) is fixedly installed in the communication port. A linkage disc (402) is slidably and sealed in the mounting cylinder (3). A vertical rod (403) is rotatably installed on the filter plate (401). A mixing rod (404) is uniformly fixedly installed on the vertical rod (403). A rotating groove (405) is opened on the vertical rod (403). A slider (406) that slides with the rotating groove (405) is fixedly installed on the linkage disc (402). An mounting disc (407) is fixedly installed on the top wall of the filter plate (401). A telescopic pipe (408) is fixedly installed between the top wall of the mounting disc (407) and the linkage disc (402). A pressure relief component (5) is provided on the mounting plate (2).

2. The apparatus for preparing bio-organic fertilizer from straw-based biogas residue waste liquid according to claim 1, characterized in that: The pressure relief assembly (5) includes a purification cylinder (501) fixedly installed on the top wall of the mounting plate (2). The mounting plate (2) has a pressure relief groove (502) communicating with the purification cylinder (501). The mounting plate (2) has a horizontal groove (503). A sealing plate (504) for sealing the pressure relief groove (502) is slidably installed in the horizontal groove (503). The sealing plate (504) has a connecting groove (505) communicating with the pressure relief groove (502). A first spring (506) is installed between the sealing plate (504) and the pressure relief groove (502).

3. The apparatus for preparing bio-organic fertilizer from straw-based biogas residue wastewater according to claim 2, characterized in that: An arc-shaped plate (601) is vertically slidably mounted on the side wall of the mounting cylinder (3). A second spring (602) is installed between the top wall of the arc-shaped plate (601) and the mounting cylinder (3). A first air pipe (603) communicating with the mounting cylinder (3) is inserted into the horizontal groove (503). A connecting hole (604) communicating with the first air pipe (603) is opened on the arc-shaped plate (601). A reset component (7) cooperating with the sealing plate (504) is provided on the mounting plate (2).

4. The apparatus for preparing bio-organic fertilizer from straw-based biogas residue wastewater according to claim 3, characterized in that: The reset assembly (7) includes a vertical hole (701) on the top wall of the horizontal groove (503), a linkage groove is provided on the mounting plate (2), a first magnet plate (702) is horizontally slidably and sealed in the linkage groove, a third spring (703) is installed between the first magnet plate (702) and the linkage groove, an air hole (704) communicating with the vertical hole (701) is provided on the first magnet plate (702), a second magnet plate (705) that repels the first magnet plate (702) is embedded on the linkage disc (402), and a one-way valve (706) with its input end communicating with the outside is installed on the mounting cylinder (3), and a reset spring (707) is provided between the top wall of the linkage disc (402) and the mounting cylinder (3).

5. The apparatus for preparing bio-organic fertilizer from straw-based biogas residue waste liquid according to claim 4, characterized in that: An air intake valve (801) is inserted into the linkage plate (402). A second air pipe (802) communicating with the outside is fixedly installed on the input end of the air intake valve (801). A first air filling groove (803) is opened on the vertical rod (403). An exhaust valve (804) whose input end is connected to the telescopic pipe (408) is inserted into the first air filling groove (803). A second air filling groove (805) communicating with the first air filling groove (803) is opened on the mixing rod (404). Holes (806) are evenly opened on the second air filling groove (805).

6. The apparatus for preparing bio-organic fertilizer from straw-based biogas residue wastewater according to claim 1, characterized in that: A disc (901) is vertically slidably mounted on the mounting cylinder (3). A mounting rod (902) is fixedly mounted on the disc (901). A ring (903) is fixedly mounted on the mounting rod (902). A reset spring (707) is installed between the ring (903) and the linkage disc (402). A threaded rod (904) that is threadedly engaged with the mounting cylinder (3) is rotatably mounted on the ring (903).

7. The apparatus for preparing bio-organic fertilizer from straw-based biogas residue wastewater according to claim 1, characterized in that: A friction ring (905) is fixedly installed on the mounting cylinder (3), a friction rod (906) is horizontally slidably installed on the vertical rod (403), and a fourth spring (907) is installed between the friction rod (906) and the vertical rod (403).

8. The apparatus for preparing bio-organic fertilizer from straw-based biogas residue wastewater according to claim 1, characterized in that: The tank (1) is provided with a discharge trough, and an auger (10) is rotatably installed in the discharge trough. The tank (1) is provided with a motor (11) whose output end is fixedly connected to the auger (10). The tank (1) is provided with a discharge pipe (12) that communicates with the discharge trough. A stopper plate (13) is detachably installed on the discharge pipe (12).

9. The apparatus for preparing bio-organic fertilizer from straw-based biogas residue wastewater according to claim 3, characterized in that: A limiting rod (14) that slides vertically with the arc plate (601) is fixedly installed on the inner top wall of the mounting cylinder (3).

10. The apparatus for preparing bio-organic fertilizer from straw-based biogas residue wastewater according to claim 2, characterized in that: A filter screen (15) is fixedly installed inside the pressure relief groove (502).

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