Automatic PH value regulation and control equipment and method based on seedling substrate fermentation

Abstract

The invention relates to the technical field of seedling substrate fermentation, in particular to an automatic PH value regulation and control device and method based on seedling substrate fermention.The automatic PH value regulation and control device comprises a high platform and a ground plane, the high platform is piled on one side of the ground plane through concrete bricks, an auger conveyor and a cover plate are installed on the inner side of the middle of the high platform, and bottom nylon cloth is placed at the upper end of the cover plate; the lower ends of the four corners of the bottom nylon cloth are fixedly connected with the top ends of the moving ends of the hydraulic push rods, the lower end of the part, exposed outside the high platform, of the auger conveyor is fixedly connected through a portal frame, a pesticide spraying adjusting unit is installed at the discharging end of the portal frame, and an electrode PH sensor is installed on one side of the auger conveyor. In the invention, when a time period in which a result can be obtained by about 30 seconds exists in the measurement of an existing electrode PH sensor, a seedling culture substrate is in a conveying stage, and when a detection result is obtained and is in a discharging stage, the adjustment of the PH value is completed by matching with a pesticide spraying rod arranged at a discharging port, and the conflict of time intervals existing in the measurement and adjustment of the PH value is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of seedling culture medium fermentation, in particular to a device and method for automatically controlling pH value based on seedling culture medium fermentation. Background Art

[0002] During the fermentation process of the seedling substrate, the pH value needs to be adjusted according to the pH value of the substrate at each position, thereby improving the quality of the fermentation of the seedling substrate; The existing seedling substrate adopts stacking for natural fermentation. During the fermentation process, a low-oxygen "dead zone" will be formed inside the pile. Turning the pile can turn the oxygen-deficient material in the lower layer to the upper layer, ensuring that the entire pile is fully exposed to air, providing sufficient oxygen for aerobic microorganisms, making the fermentation more thorough and the temperature distribution more uniform. However, when the material pile is large, turning the material is more difficult, and it is impossible to turn the material again. In the process of adjusting the pH value of the seedling substrate according to the actual pH value of each position, the pH value of the seedling substrate is adjusted. Therefore, in order to solve the above problems, an automatic pH control device and method based on the fermentation of the seedling substrate are proposed. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic pH control device and method based on the fermentation of seedling culture substrates, so as to solve the problem that in the existing seedling culture substrates that are piled for natural fermentation, a low-oxygen "dead zone" will be formed inside the pile during the fermentation process. Turning the pile can turn the oxygen-deficient materials in the lower layer to the upper layer, ensuring that the entire pile is fully exposed to the air, providing sufficient oxygen for aerobic microorganisms, making the fermentation more thorough and the temperature distribution more uniform. However, when the material pile is large, turning the material is more difficult, and it is impossible to adjust the pH value of the seedling culture substrate according to the actual pH value of each position during the turning process.

[0004] To achieve the above object, the present invention provides the following technical solutions: The automatic pH control equipment and method based on seedling matrix fermentation include a platform and a ground plane, a platform is built on one side of the ground plane by stacking concrete bricks, an auger conveyor and a cover plate are installed on the inner side of the middle of the platform, a bottom nylon cloth is placed on the upper end of the cover plate, the lower ends of the four corners of the bottom nylon cloth are fixedly connected to the top of the movable end of the hydraulic push rod, the lower end of the auger conveyor exposed to the outside of the platform is fixedly connected through a gantry, a spraying adjustment unit is installed at the discharging end of the gantry, and an electrode pH sensor is installed on one side of the auger conveyor; the spraying adjustment unit, the electrode pH sensor and the PLC are electrically connected, and the PLC is used to control the acid and alkali liquid pump and the visual detection unit; the spraying adjustment unit includes a fixed ring plate, the four corners of the fixed ring plate are fixedly connected to the spray rod, and the middle of the upper end of the fixed ring plate is spirally connected to a locking bolt, a fixed seat is installed on the spray rod, and the fixed seat is connected to the connecting unit through a rotating rod, and a drug delivery interface is provided on one side of the fixed ring plate.

[0005] As a further optimized content of the present invention, the cover plate includes a plate body, a middle hole is opened in the middle of the plate body, the upper end of the plate body is fixedly connected to the middle of the bottom nylon cloth through the middle hole, and a feed hole is opened in the middle of the bottom nylon cloth.

[0006] As a further optimization of the present invention, there are four hydraulic push rods, the bottoms of the fixed ends of the hydraulic push rods are arranged inside the platform, and the hydraulic push rods are parallel to each other.

[0007] As a further optimized content of the present invention, wherein: the connecting unit includes a fixing frame, the lower end of the fixing frame is fixedly connected to a movable ring plate, and the movable ring plate is fixedly connected to connecting seats at equal intervals around it.

[0008] As a further optimized content of the present invention, the spray rod includes a fixed rod, a movable rod is slidably connected to the inside of the fixed rod, and spray holes arranged equidistantly are formed at the bottom ends of the fixed rod and the movable rod.

[0009] As a further optimization of the present invention, the middle of the upper end of the connecting unit is fixedly connected to the movable end of the electric push rod, the bottom of the fixed end of the electric push rod is fixedly connected to the partition plate, and the partition plate is installed on the upper end of the auger conveyor housing by screws.

[0010] As a further optimization of the present invention, the movable ring plate and the fixed ring plate arranged inside the connecting unit are parallel, the fixed ring plate is fixedly connected to the outside of the auger conveyor discharge pipe by a locking bolt, the top of the locking bolt is tightly attached to the outside of the auger conveyor discharge pipe, and the movable ring plate is slidably connected to the outside of the auger conveyor discharge pipe.

[0011] As a further optimization of the present invention, the rotating rod is arranged in an "I" shape, one end of the rotating rod is rotatably connected to the connecting seat, the other end of the rotating rod is connected to the fixed seat, and the fixed seat is fixedly connected to the outside of the moving rod.

[0012] As a further optimized content of the present invention, the visual detection unit is installed at the bottom of the auger conveyor, and the visual detection unit is used to detect the vertical projection size of the material pile at the bottom of the auger conveyor. The discharge end of the acid and alkali liquid pump is connected to the drug delivery interface through a hose. The visual detection unit includes a controller inside, and the visual detection unit and the electric push rod are electrically connected.

[0013] As a further optimized content of the present invention, the following steps are included: S1: The seedling substrate is placed on the top of the nylon cloth at the top of the platform for fermentation for a period of time. When the substrate needs to be turned over to prevent the formation of a low-oxygen "dead zone" inside the pile, the auger conveyor driven by industrial power is turned on; S2: After the auger conveyor is running, the material on the upper end of the platform is transferred to the upper end of the ground plane. The material is turned over by the transfer of the material. When the material passes through the electrode pH sensor, its pH is tested. The test data is transmitted to the PLC within 30 seconds. During this process, the tested material is moved to the discharge port of the auger conveyor and discharged; During this process, the PLC receives pH value data and analyzes the data. Based on the analysis results, it controls the acid and alkali liquid pumps to transport the drugs and spray them through the spraying rods. The PLC also receives the vertical projection size information of the material pile detected by the visual inspection unit in real time, and adjusts the position of the moving rod based on the received data, and sprays the drugs according to the size of the material pile. The position of the moving rod is adjusted by controlling the height of the moving ring plate through the electric push rod; S3: When there is less material in the middle of the pile above the nylon cloth at the bottom, multiple hydraulic push rods are controlled to work synchronously to shake the material on the pile to the middle position, which is used to prevent the problem that a small amount of material on the high platform cannot be fully transported by the auger conveyor; S4: Subsequently, when all materials are transferred from the platform to the upper end of the ground, all equipment will be maintained and cleaned.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the auger conveyor is provided, and during the fermentation process of the seedling substrate, the seedling substrate at a high place is transferred to a lower place through the auger conveyor. During the transfer process, the material can be turned over, thereby solving the problem of a low-oxygen "dead zone" formed inside the pile. At the same time, during the transportation of the seedling substrate, the pH value is measured at the starting end of the transportation. When the seedling substrate moves to the end of the transportation after the measurement is completed, the pH value measurement result is output. In the existing electrode pH sensor measurement, it takes about 30 seconds to produce the result. The seedling substrate is in the transportation stage, and when the test result comes out, it is in the unloading stage. The spray rod installed at the unloading port is used to complete the pH value adjustment, thereby optimizing the conflict between the time interval between pH value measurement and adjustment. 2. In the present invention, by providing a spraying adjustment unit and a visual detection unit, the spraying range can be adjusted according to the size of the pile during the production process, which can further improve the accuracy of the pH value adjustment process of the seedling substrate; 3. In the present invention, by setting up multiple hydraulic push rods and bottom nylon cloth, it can ensure that the material pile at a high position can stably enter the interior of the auger conveyor for transportation, and at the same time it can ensure that the seedling matrix placed on the upper end of the bottom nylon cloth can completely enter the interior of the auger conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cover structure of the present invention; Figure 3 This is a schematic diagram of the structure of the spraying adjustment unit of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in the middle; Figure 5 This is a schematic diagram of the connecting unit structure of the present invention; Figure 6 This is a schematic diagram of the spray rod structure of the present invention; Figure 7 It is a system block diagram of the PLC control system of the present invention.

[0016] In the figure: 1. Platform; 2. Ground plane; 3. Nylon cloth at the bottom; 4. Hydraulic push rod; 5. Cover plate; 51. Plate body; 52. Middle hole; 6. Auger conveyor; 7. Electrode pH sensor; 8. Spray adjustment unit; 81. Fixed ring plate; 82. Drug delivery interface; 83. Locking bolt; 84. Connecting unit; 841. Fixed frame; 842. Moving ring plate; 843. Connecting seat; 85. Rotating rod; 86, spray rod; 861, fixed rod; 862, movable rod; 863, spray hole; 87. Fixed seat; 9. Electric push rod; 10. Gantry; 11. Visual inspection unit; 12. Acid and alkali liquid pump; 13. PLC; 14. Partition board. DETAILED DESCRIPTION

[0017] See also Figure 1-Figure 7 , the present invention provides a technical solution: The pH value automatic control device and method based on the fermentation of the seedling medium include a platform 1 and a ground plane 2. The platform 1 is built on one side of the ground plane 2 by stacking concrete bricks. An auger conveyor 6 and a cover plate 5 are installed on the inner side of the middle of the platform 1. The bottom nylon cloth 3 is placed on the upper end of the cover plate 5. The lower ends of the four corners of the bottom nylon cloth 3 are fixedly connected to the top of the moving end of the hydraulic push rod 4. The lower end of the part of the auger conveyor 6 exposed on the outside of the platform 1 is fixedly connected through a gantry 10. The discharge end of the gantry 10 is installed with a spraying adjustment unit 8. One side of the auger conveyor 6 is installed. Electrode pH sensor 7; the spray adjustment unit 8, the electrode pH sensor 7 and the PLC13 are electrically connected, and the PLC13 is used to control the acid and alkali liquid pump 12 and the visual detection unit 11; the spray adjustment unit 8 includes a fixed ring plate 81, and the four corners of the fixed ring plate 81 are fixedly connected to the spray rod 86, and the middle of the upper end of the fixed ring plate 81 is spirally connected with a locking bolt 83. A fixed seat 87 is installed on the spray rod 86, and the fixed seat 87 is connected to the connecting unit 84 through a rotating rod 85. A drug delivery interface 82 is provided on one side of the fixed ring plate 81.

[0018] As a further technical solution for implementing this solution, the cover plate 5 includes a plate body 51, a middle hole 52 is opened in the middle of the plate body 51, the upper end of the plate body 51 is fixedly connected to the middle of the bottom nylon cloth 3 through the middle hole 52, and a feed hole is opened in the middle of the bottom nylon cloth 3. Through the above arrangement, the middle position of the bottom nylon cloth 3 can be stably fixed, and the feed port of the auger conveyor 6 can be accurately positioned through the middle hole 52 opened inside the cover plate 5; As a technical solution for further implementation of this scheme, four hydraulic push rods 4 are provided, and the bottom of the fixed end of the hydraulic push rod 4 is set inside the high platform 1. The hydraulic push rods 4 are parallel to each other. Through the above arrangement, the raw materials on the upper end of the bottom nylon cloth 3 can be accurately introduced into the interior of the auger conveyor 6; As a further technical solution for implementing this solution, the connecting unit 84 includes a fixed frame 841, a movable ring plate 842 is fixedly connected to the lower end of the fixed frame 841, and connecting seats 843 are fixedly connected to the movable ring plate 842 at equal intervals around it. Through the above arrangement, the movable ring plate 842 can be moved by raising and lowering the electric push rod 9; As a further technical solution for implementing this scheme, the spray rod 86 includes a fixed rod 861, and a movable rod 862 is slidably connected to the fixed rod 861. The bottom ends of the fixed rod 861 and the movable rod 862 are both provided with spray holes 863 arranged at equal intervals. Through this arrangement, the spraying range can be adjusted by the extension distance of the movable rod 862. As a technical solution further implemented in this scheme, the middle of the upper end of the connecting unit 84 is fixedly connected to the movable end of the electric push rod 9, and the bottom of the fixed end of the electric push rod 9 is fixedly connected to the partition plate 14. The partition plate 14 is mounted on the upper end of the housing of the auger conveyor 6 by screws. Through the above arrangement, the bottom of the electric push rod 9 can be stably limited; As a further technical solution for implementing this solution, the movable ring plate 842 provided inside the connecting unit 84 is parallel to the fixed ring plate 81, the fixed ring plate 81 is fixedly connected to the outside of the discharge pipe of the auger conveyor 6 by a locking bolt 83, the top of the locking bolt 83 is in close contact with the outside of the discharge pipe of the auger conveyor 6, and the movable ring plate 842 is slidably connected to the outside of the discharge pipe of the auger conveyor 6. Through the above arrangement, the stability of the installation of the fixed ring plate 81 can be further improved, and the stability of the movement of the movable ring plate 842 can be ensured; As a further technical solution for implementing this solution, the rotating rod 85 is arranged in an "I" shape. One end of the rotating rod 85 is rotatably connected to the connecting seat 843, and the other end of the rotating rod 85 is connected to the fixed seat 87. The fixed seat 87 is fixedly connected to the outside of the moving rod 862. Through the above arrangement, the position of the moving rod 862 can be adjusted by moving the moving ring plate 842. As a further technical solution for implementing this solution, a visual detection unit 11 is installed at the bottom of the auger conveyor 6. The visual detection unit 11 is used to detect the vertical projection size of the material pile at the bottom of the auger conveyor 6. The discharge end of the acid and alkali liquid pump 12 is connected to the drug delivery interface 82 through a hose. The visual detection unit 11 includes a controller, and the visual detection unit 11 is electrically connected to the electric push rod 9. Through the above arrangement, the position of the moving rod 862 can be accurately adjusted according to the size of the material pile. As a technical solution for further implementation of this plan, the following steps are included: S1: The seedling substrate is placed on the top of the bottom nylon cloth 3 placed on the top of the platform 1 for fermentation for a period of time. When the substrate needs to be turned to prevent the formation of a low-oxygen "dead zone" inside the pile, the auger conveyor 6 driven by an industrial power supply is turned on; S2: After the auger conveyor 6 is running, the material on the upper end of the platform 1 is transferred to the upper end of the ground plane 2. The material is turned over by the transfer of the material. When the material passes through the electrode pH sensor 7, its pH is tested. The test data is transmitted to the PLC 13 within 30 seconds. During this process, the tested material is moved to the discharge port of the auger conveyor 6 and discharged; During this process, the PLC 13 receives the pH value data and analyzes the data. Based on the analysis results, it controls the acid and alkali liquid pump 12 to transport the medicine and spray it through the spraying rod 86. The PLC 13 also receives the vertical projection size information of the material pile detected by the visual detection unit 11 in real time, and adjusts the position of the moving rod 862 according to the received data, and sprays the medicine according to the size of the material pile. The position of the moving rod 862 is adjusted by controlling the height of the moving ring plate 842 through the electric push rod 9; S3: When there is less material in the middle of the pile on the top of the nylon cloth 3, multiple hydraulic push rods 4 are controlled to work synchronously to shake the material on the pile to the middle position, so as to prevent the problem that a small amount of material on the platform 1 cannot be fully transported by the auger conveyor 6; S4: Subsequently, when all materials are transferred from the platform 1 to the upper end of the ground level 2, all equipment is maintained and cleaned.

[0019] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method of the present invention and its core ideas. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. An automatic pH control device based on fermentation of a seedling culture medium, comprising a platform (1) and a ground plane (2), characterized in that: A platform (1) is built on one side of the ground plane (2) by stacking concrete bricks. An auger conveyor (6) and a cover plate (5) are installed on the inner side of the middle of the platform (1). A bottom nylon cloth (3) is placed on the upper end of the cover plate (5). The lower ends of the four corners of the bottom nylon cloth (3) are fixedly connected to the top of the moving end of the hydraulic push rod (4). The lower end of the part of the auger conveyor (6) exposed outside the platform (1) is fixedly connected through a gantry (10). A spray regulating unit (8) is installed at the discharge end of the gantry (10). An electrode pH sensor (7) is installed on one side of the auger conveyor (6); The spray regulating unit (8), the electrode pH sensor (7) and the PLC (13) are electrically connected, and the PLC (13) is used to control the acid and alkali liquid pump (12) and the visual detection unit (11); The spray regulating unit (8) includes a fixed ring plate (81), and the four corners of the fixed ring plate (81) are fixedly connected to the spray rod (86). The middle of the upper end of the fixed ring plate (81) is spirally connected to a locking bolt (83). A fixed seat (87) is installed on the spray rod (86), and the fixed seat (87) is connected to the connecting unit (84) through a rotating rod (85). A drug delivery interface (82) is opened on one side of the fixed ring plate (81).

2. The pH automatic control device based on seedling culture medium fermentation according to claim 1, characterized in that: The cover plate (5) comprises a plate body (51), a middle hole (52) is provided in the middle of the plate body (51), the upper end of the plate body (51) is fixedly connected to the middle of the bottom nylon cloth (3) through the middle hole (52), and a feed hole is provided in the middle of the bottom nylon cloth (3).

3. The pH automatic control device based on seedling culture medium fermentation according to claim 1, characterized in that: Four hydraulic push rods (4) are provided, and the bottoms of the fixed ends of the hydraulic push rods (4) are arranged inside the platform (1), and the hydraulic push rods (4) are parallel to each other.

4. The pH automatic control device based on seedling culture medium fermentation according to claim 1, characterized in that: The connecting unit (84) comprises a fixing frame (841), the lower end of the fixing frame (841) is fixedly connected to a movable ring plate (842), and the movable ring plate (842) is fixedly connected to connecting seats (843) at equal intervals around the periphery.

5. The pH automatic control device based on seedling culture medium fermentation according to claim 1, characterized in that: The spray rod (86) comprises a fixed rod (861), a movable rod (862) is slidably connected to the interior of the fixed rod (861), and spray holes (863) arranged at equal intervals are provided at the bottom ends of both the fixed rod (861) and the movable rod (862).

6. The pH automatic control device based on seedling culture medium fermentation according to claim 1, characterized in that: The middle of the upper end of the connecting unit (84) is fixedly connected to the movable end of the electric push rod (9), and the bottom of the fixed end of the electric push rod (9) is fixedly connected to the partition plate (14). The partition plate (14) is mounted on the upper end of the housing of the auger conveyor (6) by screws.

7. The pH automatic control device based on seedling culture medium fermentation according to claim 1, characterized in that: The movable ring plate (842) provided inside the connection unit (84) is parallel to the fixed ring plate (81), the fixed ring plate (81) is fixedly connected to the outside of the discharge pipe of the auger conveyor (6) through a locking bolt (83), the top end of the locking bolt (83) is in close contact with the outside of the discharge pipe of the auger conveyor (6), and the movable ring plate (842) is slidably connected to the outside of the discharge pipe of the auger conveyor (6).

8. The pH automatic control device based on seedling culture medium fermentation according to claim 1, characterized in that: The rotating rod (85) is arranged in an "I" shape, one end of the rotating rod (85) is rotatably connected to the connecting seat (843), and the other end of the rotating rod (85) is connected to the fixed seat (87), and the fixed seat (87) is fixedly connected to the outside of the moving rod (862).

9. The pH automatic control device based on seedling culture medium fermentation according to claim 1, characterized in that: The visual detection unit (11) is installed at the bottom of the auger conveyor (6). The visual detection unit (11) is used to detect the vertical projection size of the material pile at the bottom of the auger conveyor (6). The discharge end of the acid and alkali liquid pump (12) is connected to the drug delivery interface (82) through a hose. The visual detection unit (11) includes a controller inside. The visual detection unit (11) is electrically connected to the electric push rod (9).

10. The method for automatically controlling pH value based on fermentation of a seedling culture medium according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The seedling substrate is placed on the upper end of the bottom nylon cloth (3) placed on the upper end of the platform (1) for fermentation for a period of time. When the substrate needs to be turned over to prevent the formation of a low-oxygen "dead zone" inside the pile, the auger conveyor (6) driven by an industrial power supply is turned on; S2: After the auger conveyor (6) is in operation, the material on the upper end of the platform (1) is transferred to the upper end of the ground plane (2). The material is turned over by the transfer of the material. When the material passes through the electrode pH sensor (7), its pH is tested. The data after the test is transmitted to the PLC (13) within 30 seconds. During this process, the tested material is moved to the discharge port of the auger conveyor (6) and discharged; During this process, the PLC (13) receives the pH value data and analyzes the data. Based on the analysis results, the PLC (13) controls the acid and alkali liquid pump (12) to transport the medicine and spray it through the spraying rod (86). The PLC (13) receives the vertical projection size information of the material pile detected by the visual detection unit (11) in real time, and adjusts the position of the moving rod (862) based on the received data to spray the medicine according to the size of the material pile. The position of the moving rod (862) is adjusted by controlling the height of the moving ring plate (842) through the electric push rod (9); S3: When there is less material in the middle of the pile at the top of the bottom nylon cloth (3), multiple hydraulic push rods (4) are controlled to work synchronously to shake the material on the pile toward the middle position, so as to prevent the problem that a small amount of material on the platform (1) cannot be fully transported by the auger conveyor (6); S4: Subsequently, when all materials are transferred from the platform (1) to the upper end of the ground level (2), all equipment is maintained and cleaned.

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