Liquid fertilizer production device

Abstract

The invention discloses a liquid fertilizer production device, and belongs to the technical field of fertilizer production equipment.The liquid fertilizer production device comprises a production box, the upper end of the production box is provided with the production box, the lower end of the production box is fixedly connected with a lower box cover, and one side of the production box is fixedly provided with an air outlet hole; a fermentation barrel is rotationally connected into the production box, a fixing groove is formed in the lower end of the fermentation barrel, and a filter plate is mounted at the lower end in the fermentation barrel; and a driving assembly is installed on one side of the production box, a stirring assembly is installed in the upper box cover, and an automatic defoaming assembly is installed at the lower end in the production box. By designing the automatic defoaming assembly 4, an additional driving source is not needed to provide power for the automatic defoaming assembly, fermented liquid bubbles in the fermentation barrel can float upwards to the liquid level to be broken under the action of buoyancy and hydrodynamic force through shaking, and the filtering flux of the fertilizer is greatly improved.

Description

Technical Field

[0001] This invention belongs to the technical field of fertilizer production equipment, specifically relating to a liquid fertilizer production device. Background Technology

[0002] Liquid fertilizers, due to their rapid nutrient absorption, convenient application, and effective improvement of soil physical and chemical properties, have become an important fertilizer category in modern agricultural production. The core production step is the mixing and fermentation of raw materials. During fermentation, stirring is necessary to ensure uniform mixing and thorough fermentation. However, stirring and microbial metabolism generate a large number of bubbles. If these bubbles are not effectively defoamed in time, they will seriously affect the subsequent filtration, bottling, and storage quality of the liquid fertilizer. Furthermore, the large surface area of ​​the bubbles generated during liquid fertilizer fermentation makes them a natural attachment point and culture medium for mold, yeast, harmful bacteria, and other microorganisms in the air. These microorganisms multiply rapidly on the bubble surface and invade the fertilizer solution. If defoaming is not performed, these microorganisms will continue to proliferate during the fertilizer's storage period, leading to secondary pollution, mold growth, spoilage, and off-odors. This also damages the beneficial bacteria and nutrient structure in the fertilizer, reducing its effectiveness. Furthermore, spoiled fertilizers may exhibit stratification and turbidity, severely affecting the product's appearance and efficacy, and may even cause root burn and seedling death in crops. While existing equipment uses defoamers for chemical defoaming, this increases raw material costs. Excessive addition of defoamers can also alter the composition of liquid fertilizers, affecting their effectiveness. Furthermore, the residue left after chemical defoaming can cause secondary pollution, failing to meet the requirements of green production. Some equipment uses externally driven vibration to achieve defoaming, requiring a separate power source and control system. This not only complicates the overall structure and increases manufacturing costs but also raises energy consumption and maintenance complexity. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a liquid fertilizer production device.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows: a liquid fertilizer production device, including a production box, an upper box cover installed at the upper end of the production box, a lower box cover fixedly connected to the lower end of the production box, support legs evenly fixedly installed at the lower end of the lower box cover, an air vent fixedly installed on one side of the production box, a fermentation tank rotatably connected inside the production box, a fixing groove opened at the lower end of the fermentation tank, and a filter plate installed at the lower end inside the fermentation tank; a drive component installed on one side of the production box, a stirring component installed inside the upper box cover, and an automatic defoaming component installed at the lower end inside the production box; the automatic defoaming component includes a defoaming seat fixedly installed between it and the production box, and a placement seat fixedly installed inside the defoaming seat.

[0005] Through the above technical solution, the automatic defoaming component and the drive component are designed to ensure that when the automatic defoaming component is started, there is no obstruction from the stirring component in the fermentation tank, the shaking process is not disturbed, and the stirring component is avoided from shearing the bubbles again.

[0006] Furthermore, the drive assembly includes a drive base fixedly connected to one side of the production box, a first motor fixedly installed inside the drive base, the output end of the first motor being fixedly connected to a first threaded rod, guide rods symmetrically installed on the drive base, the guide rods being fixedly connected to the drive base, and a connecting seat provided on the first threaded rod, the connecting seat being threadedly connected to the first threaded rod.

[0007] With the above technical solution, when adding raw materials, the first motor is started, and the output end of the first motor drives the first threaded rod to rotate. The first threaded rod drives the connecting seat to rise through the threaded connection between the first threaded rod and the connecting seat, and the connecting seat drives the upper box cover to rise at the same time, which makes it convenient for the staff to add liquid waste processing raw materials into the production box.

[0008] Furthermore, the connecting seat and the guide rod are slidably connected, the guide rod and the end of the first threaded rod away from the drive seat are fixedly connected to the limiting plate, one end of the connecting seat is fixedly connected to the upper end of the upper box cover, and the connecting seat and the upper box cover are integrally formed.

[0009] Furthermore, the stirring assembly includes a mounting base fixedly installed between itself and the connecting seat. The mounting base is fixed to the connecting seat by a plurality of fixing bolts. A screw cylinder is rotatably connected to the upper end of the upper box cover. A mounting gear ring is fixedly installed on the outside of the screw cylinder. A fixed gear is meshed and driven on one side of the mounting gear ring. A second motor is fixedly installed at the lower end of the mounting base. The output end of the second motor is fixedly connected to the fixed gear.

[0010] With the above technical solution, when the liquid in the fermentation tank needs to be stirred, the power supply of the second motor is turned on, and the output end of the second motor drives the fixed gear to rotate. The meshing between the fixed gear and the mounting gear ring drives the screw cylinder to rotate.

[0011] Furthermore, a second threaded rod is provided inside the screw cylinder, and the screw cylinder and the second threaded rod are threadedly connected. A motor box is fixedly connected to the lower end of the second threaded rod, and a third motor is fixedly installed inside the motor box. A stirring seat is fixedly installed at the output end of the third motor. Multiple sets of stirring rods are evenly arranged on the circumference of the stirring seat, and the multiple sets of stirring rods are fixedly connected to the stirring seat.

[0012] Through the above technical solution, since the screw cylinder and the second screw rod are connected by a thread, the second screw rod drives the stirring rod at the lower end of the motor box to move downward into the liquid surface to mix and ferment the liquid waste raw materials. After the processing is completed, in order to avoid the stirring rod from contacting the liquid surface and damaging the subsequent automatic defoaming component, the second screw rod can be raised again.

[0013] Furthermore, the automatic defoaming assembly includes a defoaming base fixedly connected to the production box, a connecting shaft rotatably connected inside the defoaming base, a drive rod fixedly connected to the lower end of the connecting shaft, a fixed handle fixedly installed at the lower end of the drive rod, anti-slip texture on the outer side of the fixed handle, the drive rod and the fixed handle being integrated, an installation shaft fixedly connected to the upper end of the connecting shaft, a connecting sleeve fixedly installed on the outer side of the installation shaft, an installation plate fixedly installed on the outer side of the connecting sleeve, a fixing block fixedly connected to the installation plate, the fixing block being installed and inserted into a fixing groove, and a hairspring being installed and sleeved on the outer side of the connecting sleeve.

[0014] With the above technical solution, when the fermentation process in the fermentation tank is completed and the liquid needs to be defoamed, the fixed handle is turned to provide initial power to the spiral spring in the automatic defoaming component. The fixed handle drives the drive rod to rotate, and the drive rod transmits power to the connecting sleeve on the outside of the mounting shaft. The connecting sleeve rotates, thereby driving the spiral spring to rotate and wind up. The spiral spring itself has high elasticity and high recovery performance. When the fixed handle is released, the spiral spring is subjected to torque and repeatedly performs the opening and winding action, which can drive the fixed block on the mounting plate to shake continuously from side to side. Furthermore, the fixed block drives the fermentation tank to shake by inserting into the fixed groove on the fermentation tank. Through shaking, the bubbles generated in the fermentation tank due to stirring and fermentation are caused to rise to the liquid surface and burst due to buoyancy and hydrodynamic force.

[0015] Furthermore, a placement seat is fixedly connected inside the defoaming seat, and the placement seat is rotatably connected to the connecting shaft. A first movable pin is fixedly installed on the placement seat, and the first movable pin is fixedly installed to the end of the hairspring away from the connecting sleeve. A second movable pin is slidably connected to the placement seat, and the second movable pin is slidably connected to the hairspring. An extension seat is fixedly connected to one side of the second movable pin, and a first connecting part is rotatably connected inside the extension seat. The first connecting part is fixedly installed to the telescopic rod, and one end of the telescopic rod is slidably connected to the cylinder. A second connecting part is fixedly connected to the end of the cylinder away from the telescopic rod, and the second connecting part is rotatably connected to the fixed bracket. The fixed bracket is fixedly installed to the placement seat.

[0016] Through the above technical solution, the telescopic rod at the output end of the cylinder pushes the first connecting part to move, and through the extension seat, it drives the second moving pin to slide on the placement seat. Then, by moving the position of the second moving pin on the hairspring, the operator can adjust the elastic restoring force of the hairspring according to the adjustment of the effective length of the hairspring, and thus control the swing speed of the entire fermentation tank driven by the hairspring.

[0017] Furthermore, the fermentation tank has a liquid outlet at the lower end, and a flow pipe is fixedly installed at the lower end of the defoaming seat. The flow pipe and the liquid outlet are interconnected. Multiple sets of liquid outlet pipes are fixedly installed at the lower end of the lower box cover, and a flow valve is fixedly installed on the flow pipe.

[0018] With the above technical solution, after the liquid fertilizer is processed, the flow valve on the flow pipeline is opened, and the processed liquid, after being filtered, flows out from the inside to the bottom, and is then collected from the tank or distributed into containers.

[0019] The beneficial effects of the present invention are as follows: (1) By designing a matching automatic defoaming component and a driving component, the present invention ensures that when the automatic defoaming component is started, there is no obstruction from the stirring component in the fermentation tank, the shaking process is not disturbed, and the stirring component avoids the further shearing of bubbles. The overall automation level of the device is high, which improves product quality and production flexibility; (2) By designing an automatic defoaming component, the present invention, due to the high elasticity and high recovery performance of the hairspring itself, only requires the operator to provide initial power to the automatic defoaming component, so that the hairspring can continuously drive the hairspring on the connecting sleeve. The repeated shaking of the fermentation tank eliminates the need for an external power source to power the automatic defoaming component. The shaking causes the bubbles in the fermented liquid to rise to the surface and burst due to buoyancy and hydrodynamic forces. This prevents the large surface area of ​​the foam from becoming an attachment point and culture medium for mold, yeast, and other microorganisms in the air, which could lead to secondary contamination, mold growth, and spoilage of the product during storage. At the same time, the defoamed liquid has good fluidity, resulting in faster filtration and reduced replacement frequency of consumables such as filter cloths and membranes. The bubbles will not clog the micropores of the filter membrane in the filter plate, thus avoiding air resistance and significantly improving the filtration throughput of the fertilizer. Attached Figure Description

[0020] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention; Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a diagram of the internal structure of the fermentation tank of the present invention; Figure 5 This is a three-dimensional structural diagram of the hairspring of the present invention; Figure 6This is a cross-sectional view of the automatic defoaming component of the present invention; Figure 7 This is a three-dimensional structural diagram of the automatic defoaming component of the present invention; Figure 8 This is an internal structural diagram of the automatic defoaming component of the present invention; Figure 9 This is the present invention. Figure 8 A magnified view of a section at point A in the middle; Figure 10 This is a first-view perspective three-dimensional structural diagram of the stirring assembly of the present invention; Figure 11 This is a second-view perspective three-dimensional structural diagram of the stirring assembly of the present invention.

[0021] Attached reference numerals: 1. Production box; 11. Upper box cover; 12. Lower box cover; 13. Support legs; 14. Liquid outlet pipe; 15. Fermentation tank; 16. Liquid outlet hole; 17. Filter plate; 18. Air outlet hole; 19. Fixing groove; 2. Drive assembly; 20. Drive base; 21. First motor; 22. First threaded rod; 23. Guide rod; 24. Limiting plate; 25. Connecting seat; 3. Stirring assembly; 30. Mounting seat; 31. Fixing bolt; 32. Second motor; 33. Fixing gear; 34. Second threaded rod; 35. Thread cylinder; 36. Mounting gear ring; 37. Motor housing; 38. Third motor; 39. Stirring base; 310. Stirring rod; 4. Automatic defoaming assembly; 40. Defoaming base; 41. Flow pipe; 42. Drive rod; 43. Fixed handle; 44. Connecting shaft; 45. Mounting shaft; 46. Connecting sleeve; 47. Mounting plate; 48. Fixing block; 49. Hairspring; 410. First moving pin; 411. Placement seat; 412. Second moving pin; 413. Extension seat; 414. First connecting part; 415. Telescopic rod; 416. Cylinder; 417. Second connecting part; 418. Fixed bracket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] like Figures 1-4As shown, a liquid fertilizer production device in this embodiment includes a production tank 1. An upper cover 11 is installed on the upper end of the production tank 1, and a lower cover 12 is fixedly connected to the lower end of the production tank 1. Support legs 13 are evenly fixedly installed on the lower circumference of the lower cover 12. An air vent 18 is fixedly installed on one side of the production tank 1. A fermentation tank 15 is rotatably connected inside the production tank 1. A fixing groove 19 is opened at the lower end of the fermentation tank 15. A filter plate 17 is installed at the lower end of the fermentation tank 15. A drive assembly 2 is installed on one side of the production tank 1. A stirring assembly 3 is installed inside the upper cover 11. An automatic defoaming assembly 4 is installed at the lower end of the inside of the production tank 1. The automatic defoaming assembly 4 includes a defoaming seat 40 fixedly installed between it and the production tank 1. A placement seat 411 is fixedly installed inside the defoaming seat 40. The automatic defoaming assembly 4 and the drive assembly 2 ensure that when the automatic defoaming assembly 4 is started, there is no obstruction from the stirring assembly 3 in the fermentation tank 15, the shaking process is not disturbed, and the stirring assembly 3 is avoided from shearing the air bubbles again.

[0024] like Figures 1-2 As shown, the drive assembly 2 includes a drive base 20 fixedly connected to one side of the production box 1. A first motor 21 is fixedly installed inside the drive base 20. The output end of the first motor 21 is fixedly connected to a first threaded rod 22. Guide rods 23 are symmetrically installed on the drive base 20 and are fixedly connected to the drive base 20. A connecting seat 25 is provided on the first threaded rod 22, and the connecting seat 25 is threadedly connected to the first threaded rod 22. When adding raw materials, the first motor 21 is started, causing the output end of the first motor 21 to drive the first threaded rod 22. When rod 22 rotates, the first threaded rod 22 drives the connecting seat 25 to rise through the threaded connection between the first threaded rod 22 and the connecting seat 25. At the same time, the connecting seat 25 drives the upper box cover 11 to rise, which facilitates the staff to add liquid waste processing raw materials into the production box 1. The connecting seat 25 is slidably connected to the guide rod 23. The guide rod 23 and the end of the first threaded rod 22 away from the drive seat 20 are fixedly connected to the limiting plate 24. One end of the connecting seat 25 is fixedly connected to the upper end of the upper box cover 11. The connecting seat 25 and the upper box cover 11 are integrated.

[0025] like Figures 1-11As shown, the stirring assembly 3 includes a mounting base 30 fixedly installed between the connecting seat 25 and the mounting base 30. The mounting base 30 is fixed to the connecting seat 25 by multiple fixing bolts 31. A screw cylinder 35 is rotatably connected to the upper end of the upper box cover 11. A mounting gear ring 36 is fixedly installed on the outside of the screw cylinder 35. A fixed gear 33 is meshed and driven on one side of the mounting gear ring 36. A second motor 32 is fixedly installed at the lower end of the mounting base 30. The output end of the second motor 32 is fixedly connected to the fixed gear 33. When the liquid in the fermentation tank 15 needs to be stirred, the power to the second motor 32 is turned on. The output end of the second motor 32 drives the fixed gear 33 to rotate. The screw cylinder 35 is rotated through the meshing between the fixed gear 33 and the mounting gear ring 36. A second threaded rod is provided inside the screw cylinder 35. 34. The screw cylinder 35 is threadedly connected to the second threaded rod 34. The lower end of the second threaded rod 34 is fixedly connected to the motor housing 37. The motor housing 37 is fixedly installed with a third motor 38. The output end of the third motor 38 is fixedly installed with a stirring seat 39. Multiple sets of stirring rods 310 are evenly arranged on the circumference of the stirring seat 39. The multiple sets of stirring rods 310 are fixedly connected to the stirring seat 39. Since the screw cylinder 35 is threadedly connected to the second threaded rod 34, the second threaded rod 34 drives the stirring rods 310 at the lower end of the motor housing 37 to move downward into the liquid surface to mix and ferment the liquid waste raw materials. After the processing is completed, in order to avoid the stirring rods 310 contacting the liquid surface and damaging the subsequent operation of the automatic defoaming component 4, the second threaded rod 34 can be raised again.

[0026] like Figures 1-8As shown, the automatic defoaming component 4 includes a defoaming base 40 fixedly connected to the production tank 1. A connecting shaft 44 is rotatably connected inside the defoaming base 40. A drive rod 42 is fixedly connected to the lower end of the connecting shaft 44. A fixed handle 43 is fixedly installed at the lower end of the drive rod 42. The fixed handle 43 has anti-slip texture on its outer side. The drive rod 42 and the fixed handle 43 are integrated. An installation shaft 45 is fixedly connected to the upper end of the connecting shaft 44. A connecting sleeve 46 is fixedly installed on the outer side of the installation shaft 45. An installation plate 47 is fixedly installed on the outer side of the connecting sleeve 46. A fixing block 48 is fixedly connected to the installation plate 47. The fixing block 48 is installed and inserted into the fixing groove 19. A spiral spring 49 is installed on the outer side of the connecting sleeve 46. After the fermentation process in the fermentation tank 15 is completed, the liquid needs to be defoamed for the final stage. During operation, rotating the fixed handle 43 provides initial power to the hairspring 49 in the automatic defoaming assembly 4. The fixed handle 43 drives the drive rod 42 to rotate, and the drive rod 42 transmits power to the connecting sleeve 46 on the outside of the mounting shaft 45. The connecting sleeve 46 rotates, thereby driving the hairspring 49 to rotate and wind up. The hairspring 49 itself has high elasticity and high recovery performance. When the fixed handle 43 is released, the hairspring 49 is subjected to torque and repeatedly performs the opening and winding action, which can drive the fixed block 48 on the mounting plate 47 to shake continuously from side to side. Furthermore, the fixed block 48 drives the fermentation tank 15 to shake by inserting into the fixed groove 19 on the fermentation tank 15. Through shaking, the bubbles generated in the fermentation tank 15 due to stirring and fermentation are caused to rise to the liquid surface and burst due to buoyancy and hydrodynamic force.

[0027] like Figures 1-9 As shown, a placement seat 411 is fixedly connected inside the defoaming seat 40. The placement seat 411 is rotatably connected to the connecting shaft 44. A first movable pin 410 is fixedly installed on the placement seat 411. The first movable pin 410 is fixedly installed on the end of the hairspring 49 away from the connecting sleeve 46. A second movable pin 412 is slidably connected to the placement seat 411. The second movable pin 412 is slidably connected to the hairspring 49. An extension seat 413 is fixedly connected to one side of the second movable pin 412. A first connecting part 414 is rotatably connected inside the extension seat 413. The first connecting part 414 is fixedly installed to the telescopic rod 415. One end of the telescopic rod 415 is slidably connected to the cylinder 416. Next, a second connecting part 417 is fixedly connected to the end of cylinder 416 away from telescopic rod 415. The second connecting part 417 is rotatably connected to fixed bracket 418. Fixed bracket 418 is fixedly installed to placement seat 411. The telescopic rod 415 at the output end of cylinder 416 pushes the first connecting part 414 to move. Through extension seat 413, the second moving pin 412 slides on placement seat 411. By moving the position of the second moving pin 412 on the hairspring 49, the operator can adjust the elastic restoring force of the hairspring 49 according to the adjustment of the effective length of the hairspring 49, thereby controlling the swing speed of the entire fermentation tank 15 driven by the hairspring 49.

[0028] like Figures 1-6As shown, the fermentation tank 15 has a liquid outlet hole 16 at the lower end, and the defoaming seat 40 has a flow pipe 41 fixedly installed at the lower end. The flow pipe 41 and the liquid outlet hole 16 are interconnected. Multiple sets of liquid outlet pipes 14 are fixedly installed at the lower end of the lower tank cover 12. A flow valve is fixedly installed on the flow pipe 41. After the liquid fertilizer is processed, the flow valve on the flow pipe 41 is opened. The processed liquid is filtered through 17 and flows out from 16 to 12 at the lower end. Then, it is collected from the tank or distributed into containers through 14 at the lower end of 12.

[0029] The working principle of this embodiment is as follows: When the fermentation process in the fermentation tank 15 is completed and the liquid needs to be defoamed, the fixed handle 43 is rotated to provide initial power to the spiral spring 49 in the automatic defoaming component 4. The fixed handle 43 drives the drive rod 42 to rotate, and the drive rod 42 transmits the power to the connecting sleeve 46 on the outside of the mounting shaft 45. The connecting sleeve 46 rotates, thereby driving the spiral spring 49 to rotate and wind up. When the fixed handle 43 is released, the spiral spring 49 is subjected to torque and repeats the opening and winding action. The high elasticity and high recovery performance of the spiral spring 49 itself can drive the fixed block 48 on the mounting plate 47 to shake continuously from side to side. Furthermore, the fixed block 48 drives the fermentation tank 15 to shake by inserting into the fixed groove 19 on the fermentation tank 15. The shaking causes the bubbles generated in the fermentation tank 15 due to stirring and fermentation to rise to the liquid surface and burst due to buoyancy and hydrodynamic force. When the cylinder 416 is activated, the telescopic rod 415 at the output end of the cylinder 416 pushes the first connecting part 414 to move. Through the extension seat 413, the second moving pin 412 slides on the placement seat 411. By moving the position of the second moving pin 412 on the hairspring 49, the operator can adjust the elastic restoring force of the hairspring 49 according to the effective length adjustment, thereby controlling the overall swing speed of the hairspring 49 driving the fermentation tank 15. By adjusting the effective length of the hairspring 49, the swing speed of the liquid in the fermentation tank 15 is controlled at the critical bubble breaking speed, so as to eliminate the bubbles in the fermentation tank 15 without introducing new bubbles.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A liquid fertilizer production apparatus, comprising a production tank (1), characterized in that, The production box (1) is equipped with an upper cover (11) at the top and a lower cover (12) is fixedly connected to the bottom of the production box (1). Support legs (13) are evenly fixedly installed around the bottom of the lower cover (12). An air vent (18) is fixedly installed on one side of the production box (1). A fermentation tank (15) is rotatably connected inside the production box (1). A fixing groove (19) is opened at the bottom of the fermentation tank (15). A filter plate (17) is installed at the bottom of the fermentation tank (15). A drive assembly (2) is installed on one side of the production box (1), a stirring assembly (3) is installed inside the upper box cover (11), and an automatic defoaming assembly (4) is installed at the lower end of the inside of the production box (1). The automatic defoaming component (4) includes a defoaming seat (40) fixedly installed between the defoaming box (1) and the production box (1), and a placement seat (411) is fixedly installed inside the defoaming seat (40).

2. The liquid fertilizer production apparatus according to claim 1, characterized in that, The drive assembly (2) includes a drive seat (20) fixedly connected to one side of the production box (1). A first motor (21) is fixedly installed inside the drive seat (20). The output end of the first motor (21) is fixedly connected to a first threaded rod (22). Guide rods (23) are symmetrically installed on the drive seat (20). The guide rods (23) are fixedly connected to the drive seat (20). A connecting seat (25) is provided on the first threaded rod (22). The connecting seat (25) is threadedly connected to the first threaded rod (22).

3. The liquid fertilizer production apparatus according to claim 2, characterized in that, The connecting seat (25) is slidably connected to the guide rod (23). The guide rod (23) and the first threaded rod (22) are fixedly connected to the limiting plate (24) at the end away from the drive seat (20). One end of the connecting seat (25) is fixedly connected to the upper end of the upper box cover (11). The connecting seat (25) and the upper box cover (11) are integrated.

4. The liquid fertilizer production apparatus according to claim 2, characterized in that, The stirring assembly (3) includes a mounting base (30) fixedly installed between the mounting base (25) and the connecting base (25). The mounting base (30) is fixed to the connecting base (25) by multiple fixing bolts (31). The upper end of the upper box cover (11) is rotatably connected to a screw cylinder (35). A mounting gear ring (36) is fixedly installed on the outside of the screw cylinder (35). A fixed gear (33) is meshed and driven on one side of the mounting gear ring (36). A second motor (32) is fixedly installed at the lower end of the mounting base (30). The output end of the second motor (32) is fixedly connected to the fixed gear (33).

5. The liquid fertilizer production apparatus according to claim 4, characterized in that, The screw cylinder (35) is provided with a second threaded rod (34), and the screw cylinder (35) and the second threaded rod (34) are threadedly connected. The lower end of the second threaded rod (34) is fixedly connected to a motor box (37), and a third motor (38) is fixedly installed in the motor box (37). A stirring seat (39) is fixedly installed at the output end of the third motor (38). Multiple sets of stirring rods (310) are evenly arranged on the circumference of the stirring seat (39), and the multiple sets of stirring rods (310) are fixedly connected to the stirring seat (39).

6. The liquid fertilizer production apparatus according to claim 1, characterized in that, The automatic defoaming assembly (4) includes a defoaming seat (40) fixedly connected to the production box (1). A connecting shaft (44) is rotatably connected inside the defoaming seat (40). A drive rod (42) is fixedly connected to the lower end of the connecting shaft (44). A fixed handle (43) is fixedly installed at the lower end of the drive rod (42). Anti-slip texture is provided on the outer side of the fixed handle (43). The drive rod (42) and the fixed handle (43) are integrated. An installation shaft (45) is fixedly connected to the upper end of the connecting shaft (44). A connecting sleeve (46) is fixedly installed on the outer side of the installation shaft (45). An installation plate (47) is fixedly installed on the outer side of the connecting sleeve (46). A fixing block (48) is fixedly connected to the installation plate (47). The fixing block (48) is installed and inserted into the fixing groove (19). A hairspring (49) is installed on the outer side of the connecting sleeve (46).

7. The liquid fertilizer production apparatus according to claim 6, characterized in that, A placement seat (411) is fixedly connected inside the defoaming seat (40). The placement seat (411) is rotatably connected to the connecting shaft (44). A first movable pin (410) is fixedly installed on the placement seat (411). The first movable pin (410) is fixedly installed at the end of the hairspring (49) away from the connecting sleeve (46). A second movable pin (412) is slidably connected to the placement seat (411). The second movable pin (412) is slidably connected to the hairspring (49). A fixed part of the second movable pin (412) is fixedly connected to one side. An extension seat (413) is rotatably connected to a first connecting part (414), which is fixedly installed with a telescopic rod (415). One end of the telescopic rod (415) is slidably connected to a cylinder (416). A second connecting part (417) is fixedly connected to the end of the cylinder (416) away from the telescopic rod (415). The second connecting part (417) is rotatably connected to a fixed bracket (418), which is fixedly installed with a placement seat (411).

8. The liquid fertilizer production apparatus according to claim 6, characterized in that, The fermentation tank (15) has a liquid outlet hole (16) at the lower end. The defoaming seat (40) has a flow pipe (41) fixedly installed at the lower end. The flow pipe (41) and the liquid outlet hole (16) are interconnected. The lower end of the lower box cover (12) has multiple sets of liquid outlet pipes (14) fixedly installed. The flow pipe (41) has a flow valve fixedly installed on it.

Images