A soybean cycle planting system and method based on pig farm

Abstract

The present invention relates to a soybean recycling planting system based on a pig farm and a method thereof. The planting system comprises: a pig manure recovery subsystem, a biogas tank subsystem, and a soybean planting subsystem. The pig manure recovery subsystem collects and concentrates pig manure from the pig farm and introduces it into the biogas tank subsystem. The biogas tank subsystem processes the pig manure to produce biogas and fertilizer, which is transferred to the soybean planting subsystem for use as fertilizer for soybean growth. The biogas tank subsystem comprises a biogas tank. The present invention stores and ferments pig manure accumulated daily or over several days by providing multiple independent spaces in the biogas tank that are capable of mutual material exchange. This makes the input and output of the biogas tank independent of each other, and allows fermented pig manure to be discharged separately without affecting fresh fermentation raw materials, thereby improving the utilization efficiency of the biogas tank.

Description

Technical Field

[0001] The present invention belongs to the technical field of circular agriculture, and in particular relates to a soybean circular planting system and method based on a pig farm. Background Art

[0002] Circular agriculture refers to the activities that promote the multi-level and efficient flow of various agricultural resources in the farming system, so as to achieve the goals of energy conservation, emission reduction and income increase, and promote the sustainable development of modern agriculture and rural areas.

[0003] A typical example of circular agriculture is the ecological farming model of "pig (chicken) - biogas - fruit", which uses pig manure to produce biogas and fertilizer. The biogas is used for self-use, while the fertilizer provides nutrients needed for the growth of fruit trees or crops. Biogas is produced by biogas digesters.

[0004] However, pig manure enters the biogas digester every day, causing unfermented pig manure and fermented pig manure to mix together. When discharging, the unfermented pig manure is easily discharged, while the fermented pig manure remains in the digester, which not only easily leads to a decrease in the utilization efficiency of pig manure, but also affects the growth of plants. Summary of the Invention

[0005] The purpose of the present invention is to provide a soybean cycle planting system and method based on a pig farm in order to solve the problems raised in the above background technology.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] A soybean recycling planting system based on a pig farm includes: a pig manure recovery subsystem, a biogas digester subsystem, and a soybean planting subsystem. The pig manure recovery subsystem collects and concentrates pig manure from the pig farm and feeds it into the biogas digester subsystem. The biogas digester subsystem processes the pig manure to produce biogas and fertilizer, which is then transferred to the soybean planting subsystem for use as fertilizer for soybean growth.

[0008] Among them, the biogas tank subsystem includes a biogas tank, a rotating shaft with a cavity is provided in the center of the biogas tank, an annular box with an opening is concentrically provided on the rotating shaft, a plurality of partitions are provided in the annular box along its circumference, the partitions divide the annular box into a plurality of separate storage spaces, and the annular box is provided with a discharge port at each storage space, the cavity of the rotating shaft is provided with a plurality of unidirectionally rotating flywheels, the inner ring of the flywheel is provided with a sleeve, the inner ring of the sleeve is provided with a screw shaft threadedly connected thereto, a return spring is provided between the screw shaft and the sleeve for driving the screw shaft to move along its axial direction, a storage tank is provided at one end of the screw shaft located outside the biogas tank, a feed pipe leading to the biogas tank is provided on the storage tank, a No. 1 solenoid valve for controlling the passage of feces is provided in the feed pipe, a sewage outlet corresponding to the discharge port is provided on the biogas tank, a No. 2 solenoid valve is provided at the sewage outlet, and the feed pipe and the sewage outlet are respectively located in different storage spaces;

[0009] The gravity of the pig manure is used to indirectly drive the annular box to rotate to switch different storage spaces to store the fresh pig manure produced daily and to discharge the fermented pig manure in time.

[0010] Preferably, there are 14-18 storage spaces.

[0011] Preferably, the rotation direction of the annular box is that the storage space is first emptied of pig manure through the sewage outlet and then reaches the bottom of the feed pipe, and the two storage spaces where the sewage outlet and the feed pipe are located are adjacent.

[0012] Preferably, the upper portion of the partition is provided with a through hole for liquid to pass through.

[0013] Preferably, a baffle is provided on the partition, a plurality of magnetic plates extending into the interior of the biogas tank are provided on the storage tank, and an iron connecting plate is provided between two baffles located in the same storage space, and the baffle is used to block the through hole.

[0014] Preferably, a plurality of pressing blocks for squeezing and stirring feces are provided on the baffle.

[0015] Preferably, the side of the pressure plate away from the magnetic plate is serrated.

[0016] A method for planting soybeans using the above-mentioned pig farm-based soybean recycling planting system comprises the following steps:

[0017] S1: The pig manure recycling subsystem collects the manure produced by the pig farm on the same day;

[0018] S2: The manure in S1 is passed into the storage tank of the biogas digester subsystem. Under the action of the gravity of the pig manure, the screw shaft moves downward, the screw shaft drives the sleeve to rotate, the sleeve drives the rotating shaft to rotate through the flywheel, and the rotating shaft drives the annular box to rotate, so that the separate storage space directly below the feed pipe is switched to a storage space without pig manure. The No. 1 solenoid valve is opened, allowing the pig manure in the storage tank to fall from the feed pipe into the corresponding storage space in the annular box;

[0019] S3: The fermented pig manure in the biogas tank is discharged through the sewage outlet. The soybean planting subsystem sends the discharged pig manure to the soybean planting area and uses the pig manure as soybean fertilizer.

[0020] The beneficial effects of the present invention are:

[0021] The present invention stores and ferments pig manure accumulated daily or over several days by setting up multiple independent spaces in the biogas tank that are capable of exchanging substances with each other, so that the input and output of the biogas tank are independent of each other, and the fermented pig manure can be discharged separately without affecting fresh fermentation raw materials, thereby improving the utilization efficiency of the biogas tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a system block diagram of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the planting system of the present invention;

[0024] Figure 3 yes Figure 2 Schematic cross-sectional view at AA in the middle;

[0025] Figure 4 yes Figure 3 Enlarged schematic diagram of point C in the middle;

[0026] Figure 5 yes Figure 2 Schematic cross-sectional view at the middle BB.

[0027] In the figure: 1. Biogas tank; 2. Rotating shaft; 3. Annular box; 4. Partition; 5. Storage space; 6. Discharge port; 7. Flywheel; 8. Sleeve; 9. Screw shaft; 10. Return spring; 11. Storage tank; 12. Feed pipe; 13. Discharge port; 14. Through hole; 15. Baffle; 16. Magnetic plate; 17. Connecting plate; 18. Press block. DETAILED DESCRIPTION

[0028] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0029] Example 1

[0030] like Figure 1-5 As shown, a soybean recycling planting system based on a pig farm includes: a pig manure recovery subsystem, a biogas tank 1 subsystem, and a soybean planting subsystem. The pig manure recovery subsystem includes a collection pipe and a discharge pipe. The soybean planting subsystem includes a transport vehicle and a sludge pump, which is used to spray fertilizer onto the soil surface at the roots of the plants. The pig manure recovery subsystem collects and concentrates the pig manure from the pig farm and passes it into the biogas tank 1 subsystem. The biogas tank 1 subsystem processes the pig manure to produce biogas and fertilizer, which is transferred to the soybean planting subsystem for use as fertilizer for soybean growth.

[0031] The biogas tank 1 subsystem includes a biogas tank 1, a rotating shaft 2 with a cavity is provided in the center of the biogas tank 1, an annular box 3 with an opening is provided concentrically on the rotating shaft 2, a plurality of partitions 4 are provided along the circumference of the annular box 3, the partitions 4 divide the annular box 3 into a plurality of separate storage spaces 5, and the annular box 3 is provided with a discharge port 6 at each storage space 5. The cavity of the rotating shaft 2 is provided with a plurality of unidirectional rotating flywheels 7, the inner ring of the flywheel 7 is provided with a sleeve 8, and the inner ring of the sleeve 8 is provided with a threaded connection with the flywheel 7. A screw shaft 9 is provided, and a return spring 10 is provided between the screw shaft 9 and the sleeve 8 to drive the screw shaft 9 to move along its axial direction. A storage tank 11 is provided at one end of the screw shaft 9 outside the biogas tank 1. A feed pipe 12 leading to the biogas tank 1 is provided on the storage tank 11. A solenoid valve No. 1 for controlling the passage of feces is provided in the feed pipe 12. A sewage outlet 13 corresponding to the excretion outlet 6 is provided on the biogas tank 1. A No. 2 solenoid valve is provided at the sewage outlet 13. The feed pipe 12 and the sewage outlet 13 are respectively located in different storage spaces 5;

[0032] The gravity of the pig manure is used to indirectly drive the annular box 3 to rotate to switch different storage spaces 5 to store fresh pig manure produced daily and to discharge the fermented pig manure in time.

[0033] It should be noted that, under the action of the gravity of the pig manure, the storage tank 11 moves downward and approaches the biogas tank 1. The storage tank 11 drives the screw shaft 9 downward, causing the screw shaft 9 to drive the sleeve 8 to rotate. The sleeve 8 drives the rotating shaft 2 to rotate through the flywheel 7. The rotating shaft 2 drives the annular box 3 to rotate, so that the separate storage space 5 directly below the feed pipe 12 is switched to a storage space 5 without pig manure. Then, the No. 1 solenoid valve is opened, allowing the pig manure in the storage tank 11 to fall from the feed pipe 12 into the corresponding storage space 5 in the annular box 3. After the pig manure is emptied, the total weight of the storage tank 11 is reduced. Under the action of the reset spring 10, the storage tank 11 moves upward, and at the same time drives the screw shaft 9 upward. Under the action of the flywheel 7, the flywheel 7 will not drive the annular box 3 to rotate during the upward process of the screw shaft 9, that is, the storage space 5 no longer changes. When discharge is needed, the second solenoid valve at outlet 13 is opened. The fermented pig manure in storage space 5 corresponding to outlet 13 flows through drain port 6 and out of biogas tank 1. The second solenoid valve is then closed. The manure discharged from biogas tank 1 can be loaded onto a transport and transported to a soybean plantation, where it is extracted using a sludge pump and sprayed onto the soil surface near the plant roots.

[0034] The rotation direction of the annular box body 3 is that the storage space 5 is first emptied of pig manure through the sewage outlet 13 and then reaches the bottom of the feeding pipe 12, and the two storage spaces 5 where the sewage outlet 13 and the feeding pipe 12 are located are adjacent to each other. The sewage outlet 13 first discharges the pig manure in the storage space 5 corresponding to it, so that the storage space 5 is vacant, and then the vacant storage space 5 is moved to the bottom of the feeding pipe 12 during the rotation of the annular box body 3, so that the inlet and outlet of the biogas tank 1 are in order, and the normal working efficiency of the biogas tank 1 is maximized.

[0035] Example 2

[0036] The number of storage spaces 5 is 14-18, preferably 16. The replacement volume of the biogas tank 1 each time accounts for 6%-7% of the total liquid in the tank.

[0037] A through hole 14 is provided on the upper part of the partition 4 for liquid to pass through. The through hole 14 allows the fermentation liquid inside the annular box 3 to circulate with each other, and the bacteria in the fermentation liquid can quickly spread to the inside of the new feed, so that the new feed can quickly start fermentation, reducing the fermentation startup time and avoiding fermentation failure.

[0038] Baffles 15 are installed on the partition 4. Several magnetic plates 16 are installed on the storage tank 11, extending into the interior of the biogas tank 1. An iron connecting plate 17 is installed between two baffles 15 within the same storage space 5. Baffles 15 block through-holes 14. The provision of through-holes 14 allows the liquid within the biogas tank 1 to circulate freely, allowing a significant amount of liquid to be removed during discharge, which reduces the total amount of liquid within the biogas tank 1. The baffles 15 cause the magnetic plates 16 to move downward as the storage tank 11 moves downward, bringing them into contact with the connecting plates 17. The magnetic attraction generated by the magnetic plates 16 attracts the connecting plates 17. As the storage tank 11 moves upward, the magnetic plates 16 and the connecting plates 17 move upward, pulling the baffles 15 upward. The baffles 15 block the through-holes 14 on the partition 4, ensuring that the storage space 5 at the sewage outlet 13 does not affect the amount of liquid in other storage spaces 5 when discharging. When the annular box body 3 rotates, the magnetic plate 16 is disengaged from the connecting plate 17 , and the baffle 15 moves downward under the action of gravity, exposing the through hole 14 again.

[0039] The baffle 15 is provided with a plurality of pressing blocks 18 for squeezing and stirring the feces. The pressing blocks 18 move up and down with the baffle 15. The pressing blocks 18 on the baffle 15 squeeze and stir the pig feces in the storage space 5 during the up and down movement, so that the biogas bacteria can fully contact with the fermentation raw materials, break the upper scum crust in the pool, and improve the gas production rate.

[0040] The side of the pressing plate away from the magnetic plate 16 is serrated. When the serrated pressing plate moves downward, it can crush the pig manure in the storage space 5, making the pig manure more finely divided and further improving the gas production rate.

[0041] Example 3

[0042] A method for planting soybeans using the above-mentioned pig farm-based soybean recycling planting system comprises the following steps:

[0043] S1: The pig manure recycling subsystem collects the manure produced by the pig farm on the same day;

[0044] S2: The feces in S1 are passed into the storage tank 11 of the biogas tank 1 subsystem. Under the action of the gravity of the pig feces, the screw shaft 9 moves downward, the screw shaft 9 drives the sleeve 8 to rotate, the sleeve 8 drives the rotating shaft 2 to rotate through the flywheel 7, and the rotating shaft 2 drives the annular box 3 to rotate, so that the separate storage space 5 directly below the feeding pipe 12 is switched to the storage space 5 without pig feces. The No. 1 solenoid valve is opened, so that the pig feces in the storage tank 11 falls from the feeding pipe 12 into the corresponding storage space 5 in the annular box 3;

[0045] S3: The fermented pig manure in the biogas tank 1 is discharged through the sewage outlet 13. The soybean planting subsystem sends the discharged pig manure to the soybean planting area and uses the pig manure as soybean fertilizer.

[0046] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A soybean recycling planting system based on a pig farm, characterized in that: include: The pig manure recycling subsystem, the biogas tank (1) subsystem and the soybean planting subsystem are provided. The pig manure recycling subsystem collects and concentrates the pig manure from the pig farm and introduces it into the biogas tank (1) subsystem. The biogas tank (1) subsystem processes the pig manure to produce biogas and fertilizer. The fertilizer is transferred to the soybean planting subsystem and used as fertilizer for soybean growth. The biogas tank (1) subsystem includes a biogas tank (1), a rotating shaft (2) with a cavity is provided at the center of the biogas tank (1), an annular box (3) with an opening is concentrically provided on the rotating shaft (2), a plurality of partitions (4) are provided in the annular box (3) along its circumference, the partitions (4) divide the annular box (3) into a plurality of separate storage spaces (5), the annular box (3) is provided with a discharge port (6) at each storage space (5), the cavity of the rotating shaft (2) is provided with a plurality of unidirectionally rotating flywheels (7), the inner ring of the flywheel (7) is provided with a sleeve (8), and the inner ring of the sleeve (8) is provided with a threaded connection with the flywheel (7). A screw shaft (9) is provided, and a return spring (10) is provided between the screw shaft (9) and the sleeve (8) to drive the screw shaft (9) to move along its axial direction. A storage tank (11) is provided at one end of the screw shaft (9) located outside the biogas tank (1). A feed pipe (12) leading to the biogas tank (1) is provided on the storage tank (11). A first electromagnetic valve for controlling the passage of feces is provided in the feed pipe (12). A sewage outlet (13) corresponding to the excretion outlet (6) is provided on the biogas tank (1). A second electromagnetic valve is provided at the sewage outlet (13). The feed pipe (12) and the sewage outlet (13) are respectively located in different storage spaces (5). The gravity of the pig manure is used to indirectly drive the annular box (3) to rotate to switch between different storage spaces (5) to store the fresh pig manure produced daily and to discharge the fermented pig manure in a timely manner; A baffle (15) is provided on the partition (4), a plurality of magnetic plates (16) extending into the interior of the biogas tank (1) are provided on the storage tank (11), an iron connecting plate (17) is provided between two baffles (15) located in the same storage space (5), and the baffle (15) is used to block the through hole (14); and a plurality of pressing blocks (18) for squeezing and stirring feces are provided on the baffle (15).

2. The soybean cycle planting system based on a pig farm according to claim 1, characterized in that: The storage space (5) is 14-18.

3. The soybean cycle planting system based on a pig farm according to claim 1, characterized in that: The rotation direction of the annular box (3) is such that the storage space (5) first empties the pig feces through the sewage outlet (13) and then reaches the bottom of the feed pipe (12), and the two storage spaces (5) where the sewage outlet (13) and the feed pipe (12) are located are adjacent.

4. The soybean cycle planting system based on a pig farm according to claim 1, characterized in that: The upper portion of the partition (4) is provided with a through hole (14) for liquid to pass through.

5. The soybean cycle planting system based on a pig farm according to claim 1, characterized in that: The side of the pressure plate away from the magnetic plate (16) is serrated.

6. A method for planting soybeans using the pig farm-based soybean recycling planting system according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: The pig manure recycling subsystem collects the manure produced by the pig farm on the same day; S2: The feces in S1 are passed into the storage tank (11) of the biogas tank (1) subsystem. Under the gravity of the pig feces, the screw shaft (9) moves downward, the screw shaft (9) drives the sleeve (8) to rotate, the sleeve (8) drives the rotating shaft (2) to rotate through the flywheel (7), and the rotating shaft (2) drives the annular box (3) to rotate so that the separate storage space (5) directly below the feed pipe (12) is switched to the storage space (5) without pig feces. The No. 1 solenoid valve is opened so that the pig feces in the storage tank (11) falls from the feed pipe (12) into the corresponding storage space (5) in the annular box (3); S3: The fermented pig manure in the biogas tank (1) is discharged through the sewage outlet (13). The soybean planting subsystem sends the discharged pig manure to the soybean planting area and uses the pig manure as soybean fertilizer.

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