A monitoring device for organic fertilizer fermentation process

Abstract

The utility model discloses a kind of monitoring devices for organic fertilizer fermentation process, belong to organic fertilizer fermentation technical field, comprising: fermentation tank, for the fermentation reaction of organic fertilizer;Stirring shaft, be placed in the inner chamber of fermentation tank and install symmetrical stirring rod on the periphery, for stirring organic fertilizer;Lifting frame assembly, longitudinally set in the outer wall of stirring shaft and with stirring shaft parallel, with stirring rod no contact, the lifting frame assembly follow stirring shaft operation;Monitoring module box, movably connected on lifting frame assembly and can be driven along lifting frame assembly longitudinal movement by power part, so that the different longitudinal depth of organic fertilizer in monitoring fermentation tank is monitored, while following the operation of stirring shaft and monitoring the different positions of horizontal direction.The utility model realizes the continuous, multi-point, all-around real-time monitoring function of organic fertilizer material in fermentation tank in three-dimensional space, significantly improves monitoring precision and efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of organic fertilizer fermentation technology, and in particular, it is a monitoring device for the organic fertilizer fermentation process. Background Technology

[0002] Organic fertilizer fermentation is a crucial step in realizing the resource utilization of agricultural waste. Typically, in a sealed fermentation tank, aerobic microorganisms transform organic materials such as livestock manure, straw, and kitchen waste into stable, harmless organic fertilizer. During this process, environmental parameters such as temperature and humidity have a decisive impact on fermentation efficiency, degree of decomposition, and the quality of the final product. Therefore, real-time and precise monitoring of the fermentation process has become an indispensable technical means in modern organic fertilizer production.

[0003] However, existing monitoring devices have many shortcomings. For example, fixed sensor installations result in single, static monitoring points, failing to reflect dynamic changes in the material's three-dimensional space. In actual fermentation, the temperature and humidity distribution within the tank is extremely uneven due to the rotation of the stirring shaft and the settling characteristics of the material. For instance, in a vertical fermenter with a diameter of 3 meters and a height of 6 meters, if only one temperature sensor is installed at the top, middle, and bottom, when stirring stops, the rising hot air may cause the temperature at the top to reach as high as 65°C, while the bottom material, due to rapid heat dissipation, may only reach 45°C, and the middle 55°C. While the data from these three fixed points can reflect the temperature gradient, once stirring begins, the material violently tumbles and mixes, causing rapid changes in parameters across different areas, which the fixed-point data cannot capture. More seriously, if localized material agglomerates to form "hot spots" (e.g., a temperature reaching 75°C, close to the critical value for killing beneficial bacteria), and no sensor is installed at that location, the central control system will not detect this anomaly. This could lead to over-fermentation of some material or even killing of the inoculum, severely impacting the overall fermentation quality. The existence of this monitoring blind spot makes it difficult for existing systems to achieve truly precise control, thus reducing monitoring accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a monitoring device for the fermentation process of organic fertilizer, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a monitoring device for the organic fertilizer fermentation process, comprising:

[0006] Fermentation tanks are used for the fermentation reaction of organic fertilizers.

[0007] A stirring shaft is placed inside the fermentation tank and stirring rods are symmetrically installed on its circumference for stirring organic fertilizer.

[0008] The lifting frame assembly is longitudinally arranged on the outer wall of the stirring shaft and parallel to the stirring shaft, without contacting the stirring rod, and the lifting frame assembly moves with the stirring shaft;

[0009] The monitoring module box is movably connected to the lifting frame assembly and can be driven by the power unit to move longitudinally along the lifting frame assembly, thereby monitoring different longitudinal depths of the organic fertilizer in the fermentation tank, and simultaneously monitoring different horizontal positions as the stirring shaft moves.

[0010] In a preferred embodiment of this scheme, the lifting frame assembly includes a horizontal U-shaped fixed frame rod and U-shaped clamp sleeves welded to the two free ends of the U-shaped fixed frame rod, with the two U-shaped clamp sleeves clamped around the periphery of the stirring shaft.

[0011] In this preferred embodiment, the two U-shaped clamp sleeves respectively avoid the stirring rod and are both fixedly connected to the stirring shaft by locking bolts and knobs.

[0012] In this preferred embodiment, a lifting connecting block is welded to the outer wall of the monitoring module box near the U-shaped fixed frame pole. The lifting connecting block is longitudinally slidably fitted onto the longitudinal bar of the U-shaped fixed frame pole. An electric lifting rod is longitudinally installed on the upper part of the U-shaped fixed frame pole, and the bottom lifting end of the electric lifting rod is connected to the lifting connecting block by bolts.

[0013] In this preferred embodiment, a positioning rod that penetrates the lifting connecting block is longitudinally welded between the two transverse inner walls of the U-shaped fixed frame rod and the end closest to the U-shaped clamp sleeve, so that the lifting connecting block can slide longitudinally along the longitudinal body of the U-shaped fixed frame rod and the positioning rod.

[0014] In this preferred embodiment, a junction box is installed on the upper inner wall of the U-shaped fixed frame pole, and the base of the electric lifting pole is bolted to the bottom surface of the junction box. The electric lifting pole is located between the longitudinal rod of the U-shaped fixed frame pole and the positioning upright.

[0015] In this preferred embodiment, the power storage in the junction box supplies power to the electric lifting mast, and the junction box also has a wireless control switch for controlling the raising and lowering of the electric lifting mast.

[0016] In this preferred embodiment, the bottom surface of the monitoring module box is bolted with a detachable base plate. The inner wall of the detachable base plate is equipped with multiple different sensors, and the sensor probes of the sensors extend longitudinally to the outside of the detachable base plate to reach into the organic fertilizer.

[0017] In a preferred embodiment of this design, the inner wall of the detachable base plate also has a battery, the sensor is connected to the battery via wires, and a circuit board is mounted on the top of the detachable base plate and inside the monitoring module box via screws, the inner wall of the circuit board having a wireless transmission module.

[0018] In a preferred embodiment, the top surface of the fermenter is bolted with a tank cover, a support frame is installed in the middle of the top surface of the tank cover, a servo motor is installed on the top surface of the support frame, the top end of the stirring shaft extends upward through the tank cover to the support frame and is connected to the output shaft of the servo motor, and a feed pipe is also connected through one side of the support frame and located on the top surface of the tank cover.

[0019] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0020] This monitoring device for the organic fertilizer fermentation process uses a design where the lifting frame assembly is directly fixed to the outer wall of the stirring shaft. This allows the entire monitoring system to rotate synchronously with the stirring shaft without the need for an additional horizontal motion drive mechanism. It achieves the function of horizontal monitoring coverage using the stirring power of the fermentation tank itself. Compared with the complex structure of existing technologies that require a separate rotating platform or multiple distributed sensors to achieve multi-point monitoring, this device simplifies the system construction, reduces equipment costs and failure rates, and achieves the beneficial effects of compact structure, high integration, and reliable operation.

[0021] By movably connecting the monitoring module box to the lifting frame assembly that moves synchronously with the stirring shaft, and combining it with the design of driving the longitudinal movement of the electric lifting rod, the monitoring device can dynamically adjust the vertical depth of the sensor in the material during the fermentation process. At the same time, it can achieve circumferential scanning monitoring in the horizontal direction by means of the rotation of the stirring shaft. This realizes the function of continuous, multi-point, and all-round real-time monitoring of organic fertilizer materials in the fermentation tank in three-dimensional space. Compared with the existing technology where the sensor is fixedly installed, the monitoring point is single and the position cannot be changed, it significantly improves the spatial representativeness of the monitoring data and the dynamic response capability of the process, and achieves the technical effect of mastering the fermentation status of the material in the tank and timely detecting local abnormal areas.

[0022] The design utilizes an electric lifting rod to drive the monitoring module box to move stably along a dual-guide structure consisting of a U-shaped fixed frame rod and a positioning upright rod. This allows the sensor probe to accurately stop at different heights in the upper, middle, and lower parts of the tank for layered measurement. This enables precise monitoring of key parameters such as temperature gradient and humidity distribution during fermentation. Compared with existing technologies that rely on multiple fixed sensors installed at different heights, this reduces the number of sensors and tank openings, lowers installation and maintenance difficulty and leakage risk, and achieves the technical effects of saving hardware costs and improving system sealing and safety. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the installation structure of the monitoring module box of this utility model;

[0026] Figure 3 This is a schematic diagram of the connection structure of the U-shaped fixing rod of this utility model;

[0027] Figure 4 This is a schematic diagram showing the disassembled state of the detachable base plate and monitoring module box of this utility model.

[0028] Figure 5 This is a schematic diagram of the installation structure of the protective cage of this utility model;

[0029] Figure 6 This is a flowchart illustrating the electrical connection control of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] In the diagram: 1. Fermentation tank; 2. Tank lid; 3. Support frame; 4. Servo motor; 5. Feed pipe; 6. Support leg; 7. Discharge pipe; 8. Stirring shaft; 9. Stirring rod; 10. U-shaped fixing rod; 11. Sealed bearing; 12. U-shaped clamp sleeve; 13. Monitoring module box; 14. Sensor probe; 15. Junction box; 16. Locking bolt knob; 17. Positioning pole; 18. Electric lifting rod; 19. Lifting connecting block; 20. Detachable base plate; 21. Sensor; 22. Battery; 23. Circuit board; 24. Wireless transmission module; 25. Protective cage. Detailed Implementation

[0032] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0033] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0034] This embodiment provides, for example Figures 1 to 6 The monitoring device shown includes:

[0035] Fermentation tank 1 is used for the fermentation reaction of organic fertilizer. Multiple support legs 6 are installed on the bottom surface of fermentation tank 1, and a discharge pipe 7 is connected through the bottom surface of fermentation tank 1.

[0036] A stirring shaft 8 is placed in the inner cavity of the fermentation tank 1 and stirring rods 9 are symmetrically installed on its circumference for stirring organic fertilizer.

[0037] The lifting frame assembly is longitudinally arranged on the outer wall of the stirring shaft 8 and parallel to the stirring shaft 8, without contacting the stirring rod 9. The lifting frame assembly moves with the stirring shaft 8.

[0038] The monitoring module box 13 is movably connected to the lifting frame assembly and can be driven by the power unit to move longitudinally along the lifting frame assembly, so as to monitor different longitudinal depths of the organic fertilizer in the fermentation tank 1, and at the same time monitor different positions in the horizontal direction as the stirring shaft 8 moves.

[0039] In this embodiment, the lifting frame assembly includes a horizontal U-shaped fixed frame rod 10 and U-shaped clamp sleeves 12 welded to the two free ends of the U-shaped fixed frame rod 10. The two U-shaped clamp sleeves 12 are clamped around the stirring shaft 8.

[0040] In this embodiment, the two U-shaped clamp sleeves 12 respectively avoid the stirring rod 9 and are both fixedly connected to the stirring shaft 8 by the locking bolt knob 16.

[0041] In this embodiment, a lifting connecting block 19 is welded to the outer wall of the monitoring module box 13 near the U-shaped fixed frame rod 10. The lifting connecting block 19 is longitudinally slidably sleeved on the longitudinal rod of the U-shaped fixed frame rod 10. An electric lifting rod 18 is longitudinally installed on the upper part of the U-shaped fixed frame rod 10. The bottom lifting end of the electric lifting rod 18 is connected to the lifting connecting block 19 by bolts.

[0042] In this embodiment, a positioning rod 17 that penetrates the lifting connecting block 19 is longitudinally welded between the two transverse inner walls of the U-shaped fixed frame rod 10 and the end near the U-shaped clamp sleeve 12, so that the lifting connecting block 19 can slide longitudinally along the longitudinal body of the U-shaped fixed frame rod 10 and the positioning rod 17.

[0043] In this embodiment, a junction box 15 is installed on the upper inner wall of the U-shaped fixed frame rod 10. The base of the electric lifting rod 18 is bolted to the bottom surface of the junction box 15. The electric lifting rod 18 is located between the longitudinal rod of the U-shaped fixed frame rod 10 and the positioning upright 17. By setting the positioning upright 17 and the U-shaped fixed frame rod 10 to form a double guide structure, and by simultaneously fitting the lifting connecting block 19 onto both, the monitoring module box 13 experiences uniform force and runs smoothly during the lifting process, ensuring the reliability of the electric lifting rod 18's transmission.

[0044] In this embodiment, the power supply in the junction box 15 powers the electric lifting pole 18. The junction box 15 also has a wireless control switch for controlling the raising and lowering of the electric lifting pole 18. A rechargeable DC battery (such as a lithium battery or lead-acid battery) is installed inside the junction box 15 or the monitoring module box 13 to directly provide DC power to the electric lifting pole 18. The wireless control switch refers to the wireless signal receiving and relay control module integrated inside the junction box 15. The wireless receiving unit uses a low-power wireless communication chip, such as a wireless receiving module based on the LoRa, ZigBee, or 2.4GSM frequency band. This unit is responsible for receiving wireless control commands from the external control terminal (i.e., the PLC in the power distribution cabinet). For example, the command can be "rise", "fall", "stop", or "run to the preset height H1". The signal processing unit is usually a microcontroller (MCU), such as an STM32 or ATmega series microcontroller. This unit decodes and performs logical judgments on the received wireless commands, confirms the validity of the commands (such as verifying the address and command format), and generates corresponding control signals. The power drive unit consists of an H-bridge drive circuit or a relay module. This unit receives control signals from the signal processing unit and converts the low-power control signals into high-power electrical signals that can drive the electric lifting rod 18 motor to rotate forward (ascend), reverse (descend), or stop. When the PLC in the distribution cabinet needs to control the lifting of the monitoring module box 13, the PLC sends a control command to the wireless transmitter module through its communication interface (such as RS485 or Ethernet). This command is transmitted wirelessly to the wireless receiver unit in the junction box 15. The wireless receiver unit transmits the signal to the signal processing unit (MCU). After decoding, the MCU sends a command to the power drive unit, which then turns on the power supply to the electric lifting rod 18 motor and controls it to rotate forward or reverse, thereby realizing the lifting movement of the monitoring module box 13. When the target position is reached or a "stop" command is received, the power drive unit cuts off the power, and the lifting action stops.

[0045] In this embodiment, a detachable base plate 20 is bolted to the bottom surface of the monitoring module box 13. Multiple different sensors 21 are installed on the inner wall of the detachable base plate 20. The sensor probes 14 of the sensors 21 extend longitudinally to the outer side of the detachable base plate 20 to reach into the organic fertilizer. By integrating the sensors 21 into the detachable base plate 20 and installing them as a whole at the bottom of the monitoring module box 13, various sensors can be centrally arranged, uniformly powered, and have data transmitted. This achieves modularization and quick installation / removal of the monitoring unit. Compared with the existing technology where sensors are independently wired and distributed, this significantly simplifies the internal wiring layout, facilitates on-site replacement and subsequent maintenance, and achieves the practical effect of improving equipment maintainability and reducing downtime. The design of the electric lifting rod 18 periodically driving the monitoring module box 13 to reciprocate up and down enables the sensor probe 14 to generate a mechanical scraping action during the insertion and extraction of materials. This not only realizes the function of multi-depth data acquisition, but also simultaneously plays a self-cleaning role on the surface of the sensor, effectively reducing the adhesion and blockage of organic materials on the probe surface, extending the service life of the sensor 21 and improving the measurement accuracy. Each sensor probe 14 is covered with a non-contact protective cage 25 on its outer side. The top of each protective cage 25 is fixed to the bottom surface of the detachable base plate 20 with screws. The protective cage 25 can reduce the impact damage of organic fertilizer to the sensor probe 14. The lifting frame assembly is directly fixed to the outer wall of the stirring shaft 8 and rotates synchronously with it. This design allows the monitoring module box 13 to naturally obtain circumferential displacement while performing longitudinal lifting and lowering movements. This not only realizes the dynamic scanning and monitoring function in the horizontal direction, but also allows the sensor probe 14 to generate slight disturbance to the surrounding materials through the external protective cage 25 during the movement. This plays a role in assisting in breaking the arch and promoting local ventilation. Especially in the fermentation stage where the material is viscous and prone to caking, it helps to maintain an aerobic environment and prevent local anaerobic fermentation from producing odors. This achieves the effect of passively improving the fermentation microenvironment while completing the monitoring task.

[0046] In this embodiment, the inner wall of the detachable base plate 20 also has a battery 22, and the sensor 21 is connected to the battery 22 through wires. Above the detachable base plate 20 and located in the inner cavity of the monitoring module box 13, a circuit board 23 is also installed by screws. The inner wall of the circuit board 23 has a wireless transmission module 24.

[0047] In this embodiment, a tank cover 2 is bolted to the top surface of the fermentation tank 1. A support frame 3 is installed in the middle of the top surface of the tank cover 2. A servo motor 4 is installed on the top surface of the support frame 3. The top end of the stirring shaft 8 extends upward through the tank cover 2 into the support frame 3 and is connected to the output shaft of the servo motor 4. A feed pipe 5 is also connected through the support frame 3 on one side of the top surface of the tank cover 2. A power distribution cabinet is located on one side of the fermentation tank 1 in the workshop. The power distribution cabinet contains a wireless receiver that matches the wireless transmission module 24. The PLC in the power distribution cabinet controls and displays the signal on the screen. Wireless receiver: refers to the wireless communication receiving module installed in the power distribution cabinet. Its communication protocol is fully compatible with the wireless transmission module 24 in the monitoring module box 13. For example, if the wireless transmission module 24 uses LoRa communication, the receiver is a LoRa gateway or concentrator; if it uses 4G / NB-IoT, the receiver is a 4G industrial router or IoT gateway. The receiver is responsible for receiving wireless data packets sent from the monitoring module box 13 inside the fermenter 1, and transmitting the data to the PLC system through standard interfaces (such as RS232, RS485, RJ45 Ethernet port).

[0048] In this embodiment, the PLC is the core control unit in the power distribution cabinet, such as the Siemens S7-1200 series. The PLC receives data from the wireless receiver through its communication port, and performs data parsing, storage, and logical operations. For example, the PLC can determine whether the current temperature exceeds 65°C. If it does, it automatically outputs a control signal. The screen, or "Human Machine Interface (HMI)," is a touch screen display, such as Weintek. The HMI is connected to the PLC via communication cables (such as RS485 or Ethernet), and displays real-time sensor data such as temperature, humidity, and pH from the wireless receiver in digital form. The power distribution cabinet is equipped with an AC / DC power supply module to provide a stable operating power (such as 24V DC) for all electronic devices, including the PLC, HMI, and wireless receiver. Sensors 21 in the monitoring module box 13 collect data. After the data is processed by the circuit board 23, it is transmitted by the wireless transmission module 24. The wireless signal is captured by the wireless receiver in the power distribution cabinet, which transmits the data to the PLC via a wired connection. The PLC parses and stores the data and displays it on the HMI screen.

[0049] Working principle

[0050] This monitoring device for the organic fertilizer fermentation process has a feed pipe 5 that penetrates the side wall of the tank cover 2 for feeding organic fertilizer raw materials into the fermentation tank 1. The U-shaped fixing rod 10 is horizontal, with its two ends connected by welded U-shaped clamp sleeves 12, which are secured to the periphery of the stirring shaft 8. The U-shaped clamp sleeves 12 are firmly fixed to the stirring shaft 8 using locking bolt knobs 16, ensuring that the lifting frame assembly can rotate synchronously with the stirring shaft 8. The installation position of the U-shaped clamp sleeves 12 avoids the stirring rod 9, ensuring that the lifting frame assembly has no contact with the stirring rod 9 and preventing operational interference. Positioning uprights 17 are welded between the inner walls of both sides of the U-shaped fixing rod 10, parallel to the longitudinal section of the U-shaped fixing rod 10, together forming a stable longitudinal sliding track.

[0051] The monitoring module box 13 is longitudinally slidably mounted on the longitudinal rod and positioning pole 17 of the U-shaped fixed frame rod 10 via a lifting connecting block 19 on its side wall, achieving smooth longitudinal movement. The base of the electric lifting pole 18 is fixed to the bottom surface of the junction box 15 by bolts, and the junction box 15 is bolted to the upper inner wall of the U-shaped fixed frame rod 10. The bottom lifting end of the electric lifting pole 18 is connected to the lifting connecting block 19 by bolts, thereby driving the monitoring module box 13 to move up and down along the U-shaped fixed frame rod 10 and the positioning pole 17. A rechargeable battery in the junction box 15 provides a safe DC drive power for the electric lifting pole 18. The junction box 15 also has a wireless control switch for receiving external commands.

[0052] When it is necessary to monitor the material status at different depths, the PLC system in the power distribution cabinet sends a command via wireless signal. This signal is received by the wireless control switch in the junction box 15, activating the electric lifting rod 18. The electric lifting rod 18 extends and retracts, causing the lifting connecting block 19 and the monitoring module box 13 to move longitudinally along the U-shaped fixed frame rod 10 and the positioning upright rod 17. By precisely controlling the stroke of the electric lifting rod 18, the monitoring module box 13 can be positioned at any preset height at the top, middle, or bottom of the fermentation tank 1, thereby monitoring materials at different longitudinal depths.

[0053] After the longitudinal movement is completed, the servo motor 4 starts, driving the stirring shaft 8 to rotate. Since the lifting frame assembly (U-shaped fixing rod 10, U-shaped clamp sleeve 12) is fixedly connected to the stirring shaft 8 via locking bolt knob 16, the entire lifting frame assembly rotates together with the stirring shaft 8. Therefore, the monitoring module box 13 moves longitudinally with the lifting frame assembly and also rotates synchronously in the horizontal plane with the stirring shaft 8. This allows the sensor probe 14 to perform scanning monitoring of materials at different horizontal positions along the circumference within the fermenter 1 at the same longitudinal depth, greatly improving the comprehensiveness and representativeness of the monitoring.

[0054] Multiple different types of sensors 21, such as temperature, humidity, and pH sensors, are installed on the detachable base plate 20 at the bottom of the monitoring module box 13. The sensor probes 14 of the sensors 21 extend longitudinally and directly contact the material, allowing the sensors 21 to collect material parameter data in real time.

[0055] Furthermore, in some preferred embodiments, this device can simultaneously monitor the materials in the fermenter 1 at multiple locations in both the longitudinal and horizontal directions while the servo motor 4 drives the stirring shaft 8 to operate continuously. Specifically, while the stirring shaft 8 rotates, the electric lifting rod 18 can drive the monitoring module box 13 to dynamically rise and fall longitudinally along the guide structure formed by the U-shaped fixed frame rod 10 and the positioning upright rod 17 according to a preset program or real-time control command. During this process, since the lifting frame assembly is firmly fixed to the outer wall of the stirring shaft 8 through the U-shaped clamp sleeve 12 and the locking bolt knob 16, the monitoring module box 13 also rotates synchronously with the stirring shaft 8 while rising and falling, thereby realizing a continuous monitoring mode of stirring, rising and falling, and monitoring simultaneously. This working mode allows the sensor probe 14 to scan the material state at different depths and circumferential positions in real time during the stirring process, effectively capturing the dynamic changes in parameters such as temperature and humidity caused by stirring, significantly improving the real-time performance and representativeness of the data. Especially when the material is unevenly mixed or local temperature anomalies occur in the early stage of fermentation, this dynamic monitoring method can quickly locate the problem area and provide accurate basis for process control. Meanwhile, since the monitoring process is carried out simultaneously with the mixing operation, full-space monitoring can be completed without stopping the machine, which greatly improves production efficiency and automation level.

[0056] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A monitoring device for the fermentation process of organic fertilizer, characterized in that, include: Fermentation tank (1), used for the fermentation reaction of organic fertilizer; A stirring shaft (8) is placed in the inner cavity of the fermentation tank (1) and stirring rods (9) are symmetrically installed on its periphery for stirring organic fertilizer; The lifting frame assembly is longitudinally arranged on the outer wall of the stirring shaft (8) and parallel to the stirring shaft (8), and has no contact with the stirring rod (9). The lifting frame assembly moves with the stirring shaft (8). The monitoring module box (13) is movably connected to the lifting frame assembly and can be driven by the power unit to move longitudinally along the lifting frame assembly, so as to monitor different longitudinal depths of organic fertilizer in the fermentation tank (1) and monitor different positions in the horizontal direction as the stirring shaft (8) moves.

2. The monitoring device for the organic fertilizer fermentation process according to claim 1, characterized in that: The lifting frame assembly includes a horizontal U-shaped fixed frame rod (10) and U-shaped clamp sleeves (12) welded to the two free ends of the U-shaped fixed frame rod (10). The two U-shaped clamp sleeves (12) are clamped on the periphery of the stirring shaft (8).

3. The monitoring device for the organic fertilizer fermentation process according to claim 2, characterized in that: The two U-shaped clamp sleeves (12) are respectively bypassed by the stirring rod (9) and are fixedly connected to the stirring shaft (8) by the locking bolt knob (16).

4. A monitoring device for the organic fertilizer fermentation process according to claim 3, characterized in that: The monitoring module box (13) has a lifting connecting block (19) welded to the outer wall of the side near the U-shaped fixed frame rod (10). The lifting connecting block (19) is longitudinally slidably sleeved on the longitudinal rod of the U-shaped fixed frame rod (10). An electric lifting rod (18) is longitudinally installed on the upper part of the U-shaped fixed frame rod (10). The bottom lifting end of the electric lifting rod (18) is connected to the lifting connecting block (19) by bolts.

5. A monitoring device for the organic fertilizer fermentation process according to claim 4, characterized in that: A positioning rod (17) that penetrates the lifting connecting block (19) is longitudinally welded between the two transverse inner walls of the U-shaped fixed frame rod (10) and the end near the U-shaped clamp sleeve (12), so that the lifting connecting block (19) can slide longitudinally along the longitudinal body of the U-shaped fixed frame rod (10) and the positioning rod (17).

6. A monitoring device for the organic fertilizer fermentation process according to claim 5, characterized in that: A junction box (15) is installed on the upper inner wall of the U-shaped fixed frame rod (10). The base of the electric lifting rod (18) is installed on the bottom surface of the junction box (15) by bolts. The electric lifting rod (18) is located between the longitudinal rod body and the positioning upright (17) of the U-shaped fixed frame rod (10).

7. A monitoring device for the organic fertilizer fermentation process according to claim 6, characterized in that: The power storage in the junction box (15) supplies power to the electric lifting pole (18), and the junction box (15) also has a wireless control switch for controlling the lifting of the electric lifting pole (18).

8. A monitoring device for the organic fertilizer fermentation process according to claim 7, characterized in that: The bottom surface of the chamber of the monitoring module box (13) is bolted with a detachable base plate (20). The inner wall of the detachable base plate (20) is equipped with multiple different sensors (21). The sensor probe (14) of the sensor (21) extends longitudinally to the outside of the detachable base plate (20) to reach into the organic fertilizer.

9. A monitoring device for the organic fertilizer fermentation process according to claim 8, characterized in that: The inner wall of the detachable base plate (20) also has a battery (22), and the sensor (21) is connected to the battery (22) via a wire. Above the detachable base plate (20) and in the inner cavity of the monitoring module box (13), a circuit board (23) is also installed by screws. The inner wall of the circuit board (23) has a wireless transmission module (24).

10. A monitoring device for the organic fertilizer fermentation process according to claim 9, characterized in that: The fermenter (1) has a lid (2) bolted to its top surface. A support frame (3) is installed in the middle of the top surface of the lid (2). A servo motor (4) is installed on the top surface of the support frame (3). The top end of the stirring shaft (8) extends upward through the lid (2) into the support frame (3) and is connected to the output shaft of the servo motor (4). A feed pipe (5) is also connected through the support frame (3) on one side and on the top surface of the lid (2).

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