Combined composting and fermentation system

Abstract

The present application relates to the technical field of compost barrels, and discloses a combined composting and fermentation system, comprising at least one fermentation barrel. The fermentation barrel comprises a combined barrel body and a barrel lid detachably arranged at an upper opening of the barrel body, and further comprises an electric auxiliary heating system and an oxygen supply system arranged on the barrel body; the electric auxiliary heating system is used for raising the temperature in a fermentation cavity; the oxygen supply system comprises an oxygen supply pipe installed on an inner wall of the barrel body and at least one gas inlet valve installed on a side wall of the barrel body, wherein the gas inlet valve is in communication with the oxygen supply pipe, and the gas intake rate of the gas inlet valve is adjustable; and the inner wall of the barrel body is provided with a plurality of water guide grooves extending in a vertical direction, and corresponding vent holes located on a lower plane of the oxygen supply pipe correspond to the positions of the corresponding water guide grooves. The present application features an adjustable gas intake rate, and achieves high composting efficiency by using the electric auxiliary heating system.

Description

A combined composting fermentation system Technical Field

[0001] This application relates to the field of compost bin technology, specifically to a combined composting fermentation system. Background Technology

[0002] Compost is an organic fertilizer rich in nutrients. It is made by using various plant residues such as crop straw, weeds, leaves, peat, garbage, kitchen waste and other waste as the main raw materials, mixed with biological excrement, and composting them. To make composting more convenient, compost bins have emerged.

[0003] To accelerate and improve the conversion of materials into fertilizer, some compost bins are equipped with heating and / or insulation devices, such as CN219409580U and CN218089379U. To increase oxygen supply, some compost bins are equipped with ventilation structures, such as CN219409580U and CN207243763U. To address the difficulty in transporting compost bins, modular compost bins have also emerged, such as CN207243763U. However, existing compost bins suffer from drawbacks such as complex heating processes, unadjustable ventilation, difficulty in stirring during composting, and inconvenience for direct use of the fertilizer solution. Technical issues

[0004] In view of this, this application provides a combined composting fermentation system to solve the technical problems of existing systems, such as complex heating processes, unadjustable ventilation, difficulty in stirring during composting, and inconvenience in directly using the fertilizer solution. Technical solutions

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A combined composting fermentation system includes at least one fermentation tank. The fermentation tank includes a combined tank body, a detachable tank lid disposed at the upper opening of the tank body, an electric auxiliary heating system, and an oxygen supply system disposed on the tank body. The electric auxiliary heating system is used to raise the temperature inside the fermentation chamber. The oxygen supply system includes an oxygen supply pipe installed on the inner wall of the tank body and at least one air inlet valve installed on the side wall of the tank body. The air inlet valve is connected to the oxygen supply pipe, and the air intake of the air inlet valve is adjustable. The inner wall of the tank body is provided with multiple water inlet channels extending vertically. The corresponding vent holes located on the lower plane of the oxygen supply pipe correspond to the positions of the corresponding water inlet channels.

[0007] Furthermore, the electric auxiliary heating system is installed on the bucket lid, wherein the electric auxiliary heating system includes a heating plate, a storage battery and a solar panel, and the heating plate and the solar panel are both electrically connected to the storage battery.

[0008] Furthermore, the base of the barrel is equipped with a removable liquid fertilizer collection box, which can also be used as a sprayer.

[0009] Furthermore, the liquid fertilizer collection box has a liquid fertilizer collection port and a drain port. The drain port is equipped with a water inlet, a water flow regulator, and a mixing switch for controlling whether the liquid fertilizer and water can be mixed. The water flow regulator is used to adjust the spraying volume.

[0010] Furthermore, an activated carbon box is provided at the vent on the lid, and a thermometer is provided on the side wall of the barrel.

[0011] Furthermore, the barrel body includes a separable barrel body and a base. The barrel body is assembled from at least two side wall splices. The top surface of the base has a cavity that is inserted and fitted into the barrel body. A filter bottom plate is placed inside the barrel body. A liquid storage cavity is formed between the filter bottom plate and the cavity. Liquid in the liquid storage cavity can flow into the liquid fertilizer collection box.

[0012] Furthermore, the center of the filter base plate is low-lying, and the upper surface of the filter base plate is provided with multiple guide grooves that are higher on the outside and lower on the inside.

[0013] Furthermore, the air intake valve includes an inner air intake nozzle connected to the barrel body and an outer air intake nozzle that is rotatably sleeved on the inner air intake nozzle.

[0014] Furthermore, the bucket lid is provided with a sealing ring, the outer circumferential surface of the sealing ring has a sealing slope, and the upper opening of the bucket body is provided with a conical hole section that cooperates with the sealing slope.

[0015] Furthermore, it also includes a mixer capable of agitating the compost placed inside the barrel.

[0016] Furthermore, the stirrer includes a rod and at least one set of stirring blades mounted on the rod, and the rod is provided with a handle.

[0017] Furthermore, the rod body is provided with a radially penetrating mounting hole, and the stirring blade assembly is pivotally mounted in the mounting hole. The stirring blade assembly includes two symmetrical and coaxial oscillating blades.

[0018] Furthermore, when the two swing blades abut against each other, they are prevented from getting close to each other, and the swing blades are provided with a lower limit stop protrusion that can abut against the rod.

[0019] Furthermore, the opposing sides of the two oscillating blades are provided with toothed surfaces. Beneficial effects

[0020] As can be seen from the above technical solution, the advantages of this application are:

[0021] 1. In this application, the air intake volume is adjusted by setting an air intake valve that can adjust the air intake volume. The air intake volume is adjusted according to different fermentation stages and / or different raw materials to adjust the oxygen supply, so that the composting efficiency can be as high as possible at different stages.

[0022] 2. This application includes an electric auxiliary heating system, which is more convenient to use than hot water heating. This application uses solar power, which is more energy-efficient.

[0023] 3. This application includes a removable liquid fertilizer collection box, which facilitates direct transfer and use of the liquid fertilizer after collection, making the use of liquid fertilizer more convenient. The liquid fertilizer collection box has a water flow regulator and a water inlet, enabling it to be used as a sprayer. Furthermore, the liquid fertilizer can be diluted during use, making it convenient for direct use.

[0024] 4. The exhaust port in this application is equipped with an activated carbon box, which can adsorb bacteria in the exhaust gas, avoid exhaust gas pollution of the environment, and make the operation environmentally friendly and clean.

[0025] 5. This application includes a mixer, which can agitate and loosen the raw materials during composting, allowing oxygen to come into better contact with the raw materials and further improving composting efficiency. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0027] Figure 1 is a three-dimensional structural schematic diagram of this application.

[0028] Figure 2 is another three-dimensional structural schematic diagram of this application.

[0029] Figure 3 is a cross-sectional structural diagram of this application.

[0030] Figure 4 is a schematic diagram of the internal structure of this application.

[0031] Figure 5 is a structural schematic diagram of the base of this application.

[0032] Figure 6 is a schematic diagram of the liquid fertilizer collection box of this application.

[0033] Figure 7 is a schematic diagram of the oxygen supply system of this application.

[0034] Figure 8 is a schematic diagram of the oxygen supply system of this application.

[0035] Figure 9 is a schematic diagram of the structure of the bucket lid of this application.

[0036] Figure 10 is an enlarged schematic diagram of the structure at point A in Figure 3 of this application.

[0037] Figure 11 is another three-dimensional structural schematic diagram of this application.

[0038] Figure 12 is a schematic diagram of the agitator of this application.

[0039] Figure 13 is a schematic diagram of the structure of the stirring blade assembly of this application.

[0040] Figure 14 is a schematic diagram of the structure of the stirring blade assembly of this application.

[0041] Figure labeling: 1-Barrel body; 11-Discharge door; 12-Side wall splice; 13-Water inlet trough; 14-Handle; 15-Viewing window; 2-Base; 21-Cavity; 3-Barrel lid; 31-Support rod; 32-Magnetic suction device; 33-Sealing ring; 331-Sealing slope; 4-Oxygen supply system; 41-Oxygen supply pipe; 411-Ventilation hole; 42-Air inlet valve; 421-Inner air inlet; 422-Outer air inlet; 43-Fixing buckle; 5-Liquid fertilizer collection box; 51-Liquid fertilizer collection port; 52-Water flow adjustment 53-Mixer switch; 54-Water inlet; 6-Electric auxiliary heating system; 61-Heating plate; 62-Storage battery; 63-Solar panel; 64-Thermostat; 7-Filter base plate; 71-Guide trough; 72-Filtration hole; 8-Activated carbon box; 9-Thermometer; 10-Lock; 100-Agitator; 110-Rod; 1101-Mounting hole; 120-Handle; 130-Agitator blade assembly; 1301-Oscillating blade; 13011-Toothed surface; 13012-Lower limit stop protrusion. The best embodiment of the present invention

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and their descriptions are used to explain this application, but are not intended to limit it.

[0043] [Corrected according to Rule 91, 25.10.2024] Referring to Figures 1 to 14, as shown in Figures 1, 2, 3, 4, 7, 8, and 11, this embodiment provides a combined composting fermentation system, including at least one fermentation tank. The fermentation tank includes a combined tank body, a detachable tank cover 3 disposed at the upper opening of the tank body, an electric auxiliary heating system 6, and an oxygen supply system 4 disposed on the tank body. The electric auxiliary heating system 6 is used to heat and raise the temperature inside the fermentation chamber. The oxygen supply system 4 includes components installed on the fermentation tank body. The container has an oxygen supply pipe 41 located in the middle of the inner wall and at least one air inlet valve 42 installed on the side wall of the container. The air inlet valve 42 is connected to the oxygen supply pipe 41 and the air intake of the air inlet valve 42 is adjustable. The inner wall of the container is provided with multiple water inlet grooves 13 that are distributed in a ring and extend vertically. The corresponding air vents 411 located on the lower plane of the oxygen supply pipe 41 correspond to the positions of the corresponding water inlet grooves 13, so that air can flow from the water inlet grooves 13 into different positions in the container.

[0044] Specifically, when this application has multiple fermentation tanks, they are fixed together in a row for use. The oxygen supply pipe 41 is ring-shaped and coaxially arranged with the tank body. Gas entering the oxygen supply pipe 41 through the air inlet valve 42 may flow around the oxygen supply pipe 41, allowing gas to enter the raw material from multiple directions through each vent hole 411, thus improving the oxygen supply effect. As shown in Figure 9, one installation method of the tank cover 3 is as follows: the tank cover 3 is hinged to the tank body via a hinge, and the tank cover 3 can... The lid 3 can be closed and locked by connecting it to the bucket body through at least one latch 10. The inner wall of the lid 3 is provided with a support rod 31, one end of which is hinged and rotated with the lid 3. The other end of the support rod 31 can be attracted to a magnetic suction device 32 provided on the lid 3, so that the support rod 31 is reliably stored in the corresponding storage slot of the lid 3. When the lid 3 is opened, the support rod 31 can be manually pulled open and the other end of the support rod can be inserted into the corresponding insertion hole on the bucket body to keep the lid 3 in an open state. Its structure resembles the opening and locking mechanism of an outward or inward-pushing window in the prior art. Preferably, there are two insertion holes, with the insertion opening facing inwards into the composting chamber. The hinge of the support rod 31 has a certain amount of room for movement, allowing the hook at the other end of the support rod 31 to connect or separate from the insertion hole. Another installation method for the bucket lid 3 is that the bucket lid 3 is not hinged to the body, and the bucket lid 3 can also be closed and locked by multiple latches 10. A discharge port is provided on the side of the bucket body. The container is equipped with an openable discharge door 11, which can be closed and locked by a door lock; an activated carbon box 8 is provided at the exhaust hole on the lid 3, which can adsorb bacteria in the exhaust gas, reduce exhaust gas pollution, and reduce the odor of the exhaust gas, making the composting process environmentally friendly and clean; a recessed handle 14 is provided on the outer wall of the container for easy handling; the oxygen supply pipe 41 is an aluminum pipe, which is fixedly installed on the inner wall of the container by multiple fixing buckles 43.

[0045] In an embodiment of this application, as shown in FIG10, a sealing ring 33 is provided on the circumferential surface of the bucket lid 3. The outer circumferential surface of the sealing ring 33 has a sealing slope 331. The upper opening of the bucket body is provided with a conical hole section that cooperates with the sealing slope 331. Under the gravity of the bucket lid 3, the sealing ring 33 automatically presses down. The cooperation between the sealing slope 331 and the conical hole section makes the joint between the bucket lid 3 and the bucket body highly sealed, minimizing the emission of gas that has not been treated by the activated carbon box 8.

[0046] In an embodiment of this application, as shown in FIG3, the air intake valve 42 includes an inner air intake nozzle 421 connected to the barrel body and an outer air intake nozzle 422 rotatably sleeved on the inner air intake nozzle 421.

[0047] Specifically, both the inner air inlet 421 and the outer air inlet 422 are provided with multiple annularly distributed air inlets. The size of the air inlet is adjusted by the overlap of the inner and outer air inlets, thereby regulating the air intake. When all the inner and outer air inlets are completely overlapped, the air intake is at its maximum. The air intake valve 42 may also include an inner air inlet 421 with an air inlet and a radial push-pull plate disposed on the inner air inlet 421. The size of the air inlet is adjusted by adjusting the coverage area of ​​the air inlet using the push-pull plate, thereby regulating the air intake.

[0048] The air inlet valve 42 can also be an existing angle valve or needle valve. The air flow can be adjusted by adjusting the valve stem. The air inlet valve 42 can be connected to the existing air supply system to supply oxygen to the raw materials by allowing air with a certain pressure to enter the barrel.

[0049] In an embodiment of this application, when the application has a fermentation tank, the tank body includes a separable tank body 1 and a base 2. The tank body 1 is assembled from at least two side wall splicing bodies 12. The top surface of the base 2 has a cavity 21 that is inserted and matched with the tank body 1. A water filter bottom plate 7 is placed inside the tank body 1, and a liquid storage cavity is formed between the water filter bottom plate 7 and the cavity 21.

[0050] Specifically, the barrel body 1 in this application is composed of four side wall splicing bodies 12. The splicing points of adjacent side wall splicing bodies 12 are achieved by interlocking multiple protrusions on the sides with multiple slots on the corresponding outer surfaces, and then pressing and tightening the adjacent side wall splicing bodies 12 with screws for a fixed connection. This provides better heat insulation. The barrel body 1 is connected to the base 2 by screws, and the top surface of the barrel body 1 abuts against the top surface of the base 2. Since the lower part of the barrel body 1 is located within the recessed cavity 21, the liquid fertilizer flowing out through the water inlet trough 13 directly enters the cavity. The recessed cavity 21 prevents liquid fertilizer from flowing out from the joint between the barrel body 1 and the base 2. The discharge door 11 is located on the side wall splice 12. The recessed cavity 21 is a low-lying shape with a high periphery and a low center. The lowest point of the recessed cavity 21 is provided with a liquid outlet. When the liquid outlet is open, the liquid fertilizer can be discharged through the liquid outlet and then stored in a container or directly seeped into the soil for use. The liquid outlet is also sealed with a plug to temporarily store the liquid fertilizer in the storage cavity. The side wall of the barrel body 1 and the barrel cover 3 are both hollow, and the hollow cavity is filled with heat insulation material, which can more effectively prevent heat loss.

[0051] When this application has multiple fermentation tanks connected in a row, one structure is: formed by splicing multiple independent fermentation tanks; another structure is: the base 2 of multiple fermentation tanks is spliced ​​into one piece using a staggered structure, the tank body 1 of multiple fermentation tanks is spliced ​​into a large cavity by splicing several side wall splicing bodies 12, and multiple partitions are set in the cavity to form multiple independent fermentation chambers, so that two adjacent fermentation chambers share the same partition. The partitions are limited by sliding grooves or fixed by screws, making the structure compact.

[0052] In the embodiments of this application, the barrel body 1 is provided with a viewing window 15, which allows for convenient observation of the fermentation process inside the fermentation chamber.

[0053] In the embodiments of this application, the electric auxiliary heating system 6 may be disposed on the lid 3 or on the side wall of the body 1.

[0054] Preferably, in the embodiments of this application, the electric auxiliary heating system 6 is disposed on the bucket lid 3.

[0055] In the embodiments of this application, the electric auxiliary heating system 6 includes a heating plate 61, a storage battery 62, and a solar panel 63. The heating plate 61 and the solar panel 63 are both electrically connected to the storage battery 62. The heating plate 61 is disposed on the inner side of the bucket lid 3. The storage battery 62 may also be provided with a charging port for connecting a charging cable, so that the storage battery 62 can be connected to the mains power or a mobile power source for charging. The heating plate 61 is formed by winding heating wire or by using a metal plate.

[0056] In an embodiment of this application, a temperature measuring instrument 9 is provided on the side wall of the barrel.

[0057] Specifically, the thermometer 9 can be set up independently, such as a wireless electronic thermometer. The thermometer 9 is existing technology, and its specific structure and principle are not within the scope of this application. The electric auxiliary heating system 6 can be equipped with a control switch, which can be manually operated using the temperature display on the thermometer 9 to control whether the electric auxiliary heating system 6 is working. The thermometer 9 can also be linked to the electric auxiliary heating system 6 via a temperature controller 64. The thermometer 9, heating plate 61, temperature controller 64, and battery 62 are all interconnected. The thermostat 64 uses the temperature measurement data from the thermometer 9 to determine whether the electric auxiliary heating system 6 needs to work. Preferably, when the temperature inside the barrel is below 60°C, the thermostat 64 controls the heating plate 61 to work, and when the temperature inside the barrel is above 70°C, the thermostat 64 controls the heating plate 61 to stop working. The selection of the type of thermostat 64 and the thermometer 9, as well as the control programming program of the thermostat 64, are not within the protection scope of this application and are the same as the working principle of existing temperature control devices.

[0058] In the embodiments of this application, as shown in Figures 1, 3, 5 and 6, the base 2 of the barrel is provided with a removable liquid fertilizer collection box 5, the liquid in the storage chamber can flow into the liquid fertilizer collection box 5, and the liquid fertilizer collection box 5 can also be used as a sprayer.

[0059] Specifically, the liquid fertilizer collection tank 5 has a drain outlet and a liquid fertilizer collection port 51 that can communicate with the outlet of the cavity 21. The liquid fertilizer collected in the cavity 21 can enter the liquid fertilizer collection tank 5 for storage. The drain outlet is equipped with a water inlet 54, a water flow regulator 52, and a mixing switch 53 for controlling whether the liquid fertilizer and water can be mixed. The water flow regulator 52 is used to adjust the spraying volume. The water inlet 54, the water flow regulator 52, the mixing switch 53, and the drain outlet are arranged in a four-corner cross pattern. The mixing switch 53 is arranged opposite to the drain outlet. The mixing switch 53 can be a valve stem / The valve ball controls the opening of the drain port by moving the valve stem / valve ball cap, which separates the valve stem / valve ball from the drain port, thus connecting it to the inlet 54 and the water flow regulator 52. Alternatively, the valve stem / valve ball can be pressed against the drain port to close it. The water flow regulator 52 can be the same as the existing water flow regulation principle of a sprinkler spout, a faucet spout, or a shower head. When the liquid fertilizer collection tank 5 needs to be used alone, a plug is installed at the liquid fertilizer collection port 51. When the liquid fertilizer collection tank 5 needs to be cleaned, water can be poured into the liquid fertilizer collection port 51 to flush the liquid fertilizer collection tank 5.

[0060] In the embodiments of this application, as shown in Figure 4, the center of the filter base plate 7 is low-lying, and the edge of the upper surface of the filter base plate 7 is provided with multiple guide grooves 71 with a higher outer surface and a lower inner surface. The slope of the filter base plate 7 is used to smoothly guide the liquid fertilizer to the outlet of the cavity 21 for easy and complete discharge, avoiding waste. The guide grooves 71 not only play a guiding role, but also increase the liquid storage capacity of the cavity 21, preventing the liquid fertilizer from accumulating in large quantities at the connection between the filter base plate 7 and the barrel body 1. The inner wall of the barrel body 1 has a shoulder for supporting and lifting the filter base plate 7, so that the filter base plate 7 is installed stably. The filter holes 72 of the filter base plate 7 are evenly distributed, and each guide groove 71 is provided with at least one filter hole 72 near the lower part of the slope.

[0061] In embodiments of this application, the combined composting fermentation system further includes a stirrer 100 capable of stirring the compost placed inside the barrel.

[0062] Specifically, the agitator 100 is a stirring rod independent of the compost bin or a rotatable stirring component installed inside the compost bin. When the agitator 100 is a stirring rod, the bin lid 3 is opened during use, and the stirring rod is used to stir and fluff the raw materials. When the agitator 100 is a rotatable stirring component installed inside the compost bin, the bin lid 3 is opened during use, and the stirring component is manually driven. Alternatively, the drive shaft of the stirring component can pass through the bin lid 3 (this can be achieved when the bin lid 3 is not hinged), and the stirring component can also be manually driven without opening the bin lid 3.

[0063] Preferably, as shown in FIG11, in the embodiments of this application, the stirrer 100 is a stirring rod, the stirrer 100 includes a rod body 110 and at least one set of stirring blade assemblies 130 mounted on the rod body 110, and the rod body 110 is provided with a handle portion 120. The handle portion 120 makes the stirrer 100 easy to hold and use.

[0064] As shown in Figures 12, 13, and 14, the rod body 110 has a radially penetrating mounting hole 1101. The stirring blade assembly 130 is pivotally mounted within the mounting hole 1101. The stirring blade assembly 130 includes two symmetrical and coaxial oscillating blades 1301. The mounting hole 1101 can be used to limit the oscillation angle of the oscillating blades 1301. When the stirrer 100 is inserted and rotated, the oscillating blades 1301 are used to agitate and fluff the raw materials.

[0065] In the embodiments of this application, the two sides of the two oscillating blades 1301 are flush. The two oscillating blades 1301 can abut against each other by the side protrusions of the oscillating blades 1301. When the oscillating blades 1301 abut against each other, they prevent the two oscillating blades 1301 from getting closer to each other. The oscillating blades 1301 are provided with a lower limit abutting protrusion 13012 that can abut against the rod 110. When the lower limit abutting protrusion 13012 abuts against the rod 110, it prevents the two oscillating blades 1301 from moving further away from each other, thereby limiting the oscillation angle range of the oscillating blades 1301. The oscillation of the oscillating blades 1301 can be achieved by pulling the stirrer 100 up and down, and the oscillation of the oscillating blades 1301 when the stirrer 100 rotates, which makes the raw material loosening better.

[0066] In the embodiments of this application, the opposing sides of the two oscillating blades 1301 are provided with toothed surfaces 13011, which improves the mixing effect of the raw materials.

[0067] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to the embodiments of this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A combined composting fermentation system, characterized in that, The fermentation tank includes at least one fermentation tank, which includes a combined tank body, a detachable tank cover (3) located at the upper opening of the tank body, an electric auxiliary heating system (6), and an oxygen supply system (4) located on the tank body. The electric auxiliary heating system (6) is used to raise the temperature inside the fermentation chamber. The oxygen supply system (4) includes an oxygen supply pipe (41) installed on the inner wall of the tank body and at least one air inlet valve (42) installed on the side wall of the tank body. The air inlet valve (42) is connected to the oxygen supply pipe (41), and the air intake of the air inlet valve (42) is adjustable. The inner wall of the tank body is provided with multiple water inlet grooves (13) extending in the vertical direction. The corresponding air vent (411) located on the lower plane of the oxygen supply pipe (41) corresponds to the position of the corresponding water inlet groove (13).

2. The combined composting fermentation system according to claim 1, characterized in that, The electric auxiliary heating system (6) is installed on the bucket lid (3). The electric auxiliary heating system (6) includes a heating plate (61), a storage battery (62) and a solar panel (63). The heating plate (61) and the solar panel (63) are both electrically connected to the storage battery (62).

3. The combined composting fermentation system according to claim 1, characterized in that, The base (2) of the barrel is equipped with a removable liquid fertilizer collection box (5), and the liquid fertilizer collection box (5) can also be used as a sprayer.

4. The combined composting fermentation system according to claim 3, characterized in that, The liquid fertilizer collection box (5) has a liquid fertilizer collection port (51) and a drain port. The drain port is equipped with a water inlet (54), a water flow regulator (52), and a mixing switch (53) for controlling whether the liquid fertilizer and water can be mixed. The water flow regulator (52) is used to adjust the spraying amount.

5. The combined composting fermentation system according to claim 1, characterized in that, An activated carbon box (8) is provided at the vent on the barrel lid (3), and a thermometer (9) is provided on the side wall of the barrel.

6. The combined composting fermentation system according to claim 5, characterized in that, The barrel includes a separable barrel body (1) and a base (2). The barrel body (1) is assembled from at least two side wall splicing bodies (12). The top surface of the base (2) has a cavity (21) that is inserted into the barrel body (1). A filter bottom plate (7) is placed inside the barrel body (1). A liquid storage cavity is formed between the filter bottom plate (7) and the cavity (21). Liquid in the liquid storage cavity can flow into the liquid fertilizer collection box (5).

7. The combined composting fermentation system according to claim 7, characterized in that, The center of the filter base plate (7) is low-lying, and the upper surface of the filter base plate (7) is provided with multiple guide grooves (71) with the outer higher and inner lower.

8. The combined composting fermentation system according to claim 1, characterized in that, The air intake valve (42) includes an inner air intake nozzle (421) connected to the barrel body and an outer air intake nozzle (422) that is rotatably sleeved on the inner air intake nozzle (421).

9. The combined composting fermentation system according to claim 1, characterized in that, The lid (3) of the bucket is provided with a sealing ring (33), the outer circumferential surface of the sealing ring (33) has a sealing slope (331), and the upper opening of the bucket body is provided with a conical hole section that cooperates with the sealing slope (331).

10. The combined composting fermentation system according to claim 1, characterized in that, It also includes a mixer (100) capable of agitating the compost placed inside the barrel.

11. The combined composting fermentation system according to claim 10, characterized in that, The stirrer (100) includes a rod (110) and at least one set of stirring blade assemblies (130) mounted on the rod (110), and the rod (110) is provided with a handle portion (120).

12. The combined composting fermentation system according to claim 11, characterized in that, The rod body (110) is provided with a radially penetrating mounting hole (1101), and the stirring blade assembly (130) is pivotally installed in the mounting hole (1101). The stirring blade assembly (130) includes two symmetrical and coaxial oscillating blades (1301).

13. The combined composting fermentation system according to claim 12, characterized in that, When the two swing blades (1301) abut against each other, they prevent the two swing blades (1301) from getting close to each other. The swing blades (1301) are provided with a lower limit stop protrusion (13012) that can abut against the rod (110).

14. The combined composting fermentation system according to claim 13, characterized in that, The two oscillating blades (1301) are provided with toothed surfaces (13011) on their opposite sides.

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