Agricultural waste treatment device for organic fertilizer preparation and treatment method thereof

Abstract

The invention relates to the technical field of organic fertilizer production, and particularly discloses an agricultural waste treatment device for organic fertilizer preparation and a treatment method thereof.The agricultural waste treatment device comprises a device base, a grinding cylinder, a smashing cylinder and a discharging hopper are arranged at the top of the device base, a smashing assembly is arranged in the smashing cylinder, and a grinding assembly is arranged in the smashing cylinder; a stirring assembly is arranged in the device base, and the crushing assembly comprises a filter cylinder fixedly connected to the interior of the crushing cylinder; when agricultural wastes enter the crushing cylinder, long straws are cut into sections by virtue of a plurality of driving shafts and fall to the bottom after being crushed, the cut straws and excrement are deeply crushed and mixed by virtue of a blade I and a blade II, and the mixed wastes enter the grinding cylinder through the filter cylinder and are ground in the grinding cylinder; and the waste which does not conform to the specification is discharged through the communicating pipe, so that the waste is promoted to be in full contact, the decomposition of microorganisms is ensured, and the preparation efficiency and quality of the organic fertilizer are improved.

Description

Technical Field

[0001] The invention relates to the technical field of organic fertilizer production, and in particular to an agricultural waste treatment device and a treatment method thereof for preparing organic fertilizer. Background Art

[0002] In the process of preparing organic fertilizer, various agricultural wastes are often used as raw materials, such as straw, feces, green manure, etc. The processing device needs to mix straw and livestock and poultry feces in a specific ratio to ensure that microorganisms can obtain a balanced supply of carbon and nitrogen sources during the decomposition process, achieve a uniform distribution of nutrients in each raw material, and effectively ensure the stability of the fermentation process and the quality level of organic fertilizer.

[0003] The current processing flow of waste such as straw by treatment devices often starts with a crushing process. In order to achieve similar particle sizes after mixing straw and feces, a long crushing operation is often required. Due to the characteristics of feces, its particles continue to be refined during crushing, which can easily lead to obvious differences in the particle sizes of the two, which is not conducive to the subsequent uniform mixing process and microbial decomposition. In addition, long-term crushing will cause the temperature to rise. Excessive temperature will damage the decomposition microorganisms, restricting the subsequent decomposition quality and efficiency.

[0004] Therefore, it is necessary to provide an agricultural waste treatment device and a treatment method for preparing organic fertilizer, aiming to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide an agricultural waste treatment device and a treatment method for preparing organic fertilizer, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] An agricultural waste treatment device for preparing organic fertilizer and a treatment method thereof, comprising a device base, a grinding cylinder, a crushing cylinder and a lower hopper are arranged on the top of the device base, a crushing assembly is arranged inside the crushing cylinder, a grinding assembly is arranged inside the crushing cylinder, a stirring assembly is arranged inside the device base, the crushing assembly comprises a filter cylinder fixedly connected to the crushing cylinder, a bottom plate is fixedly connected to the bottom of the filter cylinder, a guide cylinder is fixedly connected between the grinding cylinder and the crushing cylinder, a crushing mechanism 1 and a crushing mechanism 2 are arranged inside the filter cylinder, the grinding cylinder is fixedly connected to the top of the device base, and the lower hopper is fixedly connected to the top of the crushing cylinder;

[0008] The crushing mechanism 1 includes a driving shaft rotatably connected to the inside of the bottom plate, a crushing knife is evenly fixedly connected to the top of the driving shaft, a blade 1 is rotatably connected to the upper surface of the bottom plate, a blade 2 is rotatably connected to the upper surface of the blade 1, the blade 2 is fixedly connected to the driving shaft, a gear ring is fixedly connected to the inside of the bottom plate, one end of the driving shaft located in the gear ring is fixedly connected to a driving wheel, a planetary gear is meshed and connected between the driving wheel and the gear ring, and the planetary gear is fixedly connected to the blade 1;

[0009] The grinding assembly includes grinding disc one and grinding disc two fixedly connected to the bottom of the driving shaft, grinding disc two fixedly connected to the bottom of grinding disc one, the bottom of grinding disc two is evenly fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with the same guide seat, and a filter is fixedly connected between the inner wall of the grinding cylinder and the guide seat.

[0010] As a further improvement of the above scheme, the stirring assembly includes a motor and a stirring mechanism, the lower surface of the device base is fixedly connected to a mounting seat, the motor is fixedly installed on the lower surface of the mounting seat, the internal rotation of the device base is connected to a connecting pipe, the bottom of the connecting pipe is fixedly connected to a gear 2, the internal rotation of the mounting seat is connected to a gear 1, the gear 1 is fixedly connected to the motor output shaft through a coupling, the gear 1 and the gear 2 are meshed with each other, and the connecting pipe is fixedly connected to the inside of the guide seat.

[0011] As a further improvement of the above scheme, the second crushing mechanism includes a connecting sleeve fixedly installed symmetrically on the top of the driving shaft, the two outer sides of the connecting sleeves are fixedly connected to each other, a fixed shaft is fixedly connected between the two connecting sleeves, and the outer side of the fixed shaft is rotatably connected to a crushing knife through a mounting sleeve.

[0012] As a further improvement of the above solution, the mounting sleeve is rotatably connected to the outer side of the fixed shaft, the crushing knife is fixedly connected to the outer side of the mounting sleeve, and a torsion spring is fixedly connected between the mounting sleeve and the fixed shaft.

[0013] As a further improvement of the above scheme, the stirring mechanism includes a movable plate rotatably connected to the bottom of the device base, the movable plate is fixedly connected to the connecting pipe, the interior of the movable plate is symmetrically rotatably connected to a stirring rod, the top of the stirring rod is fixedly connected to a stirring blade, the bottom of the stirring rod is fixedly connected to a movable wheel, and the bottom of the device base is provided with an annular groove that meshes with the movable wheel.

[0014] As a further improvement of the above solution, an impeller is fixedly connected to the outer side of the driving shaft, and the impeller is located between the bottom plate and the grinding disc.

[0015] The method for treating agricultural waste for preparing organic fertilizer comprises the following steps:

[0016] Step 1: Collect agricultural waste and dry it in the sun to remove the internal moisture;

[0017] Step 2: The agricultural waste after drying is transported to the lower hopper through the conveying equipment, and then enters the crushing cylinder through the lower hopper;

[0018] Step 3: Start the motor to rotate the connecting pipe and the driving shaft, and the driving shaft rotates to crush the waste in the crushing cylinder;

[0019] Step 4: The waste enters the grinding cylinder and rotates through the connecting pipe to grind and screen the waste;

[0020] Step 5: The waste enters the mixing station, and the stirring blades driven by the connecting pipe will achieve uniform mixing of the waste, ensuring sufficient contact between the wastes.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. When agricultural waste enters the crushing cylinder, the long straw is cut into segments with the help of multiple driving shafts. After being crushed, it falls to the bottom. The cut straw and feces are deeply crushed and mixed by blades one and two. The mixed waste passes through the filter cylinder and enters the grinding cylinder. It is ground in the grinding cylinder to ensure the consistency of the particle size of the two. The waste that does not meet the specifications is discharged from the connecting pipe, which promotes full contact between the wastes, ensures the decomposition of microorganisms, and improves the efficiency and quality of organic fertilizer preparation.

[0023] 2. The starting motor can drive the connecting pipe through the meshing transmission of gear 1 and gear 2, and then the connecting pipe drives the driving shaft to rotate by means of the internal structure of the grinding component, so as to achieve the synchronous operation of the crushing, grinding and mixing processes, and the stirring mechanism can evenly mix the waste falling from the grinding cylinder in the base of the device, effectively preventing the occurrence of adverse effects on the overall mixing efficiency due to local accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the present invention as a whole;

[0027] Figure 3 It is a schematic diagram of the internal structure of the grinding cylinder and the crushing cylinder of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the pulverizing mechanism 1 and the pulverizing mechanism 2 of the present invention;

[0029] Figure 5 It is a schematic diagram of the internal structure of the crushing knife of the present invention;

[0030] Figure 6 It is a schematic diagram of the internal structure of the grinding cylinder of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the stirring mechanism of the present invention;

[0032] Figure 8 It is a schematic diagram of the internal structure of the base of the device of the present invention;

[0033] Fig. 9 It is a schematic diagram of the internal structure of the bottom plate of the present invention.

[0034] In the figure: 1, device base; 2, grinding cylinder; 3, crushing cylinder; 4, lower hopper; 5, crushing assembly; 51, filter cylinder; 52, bottom plate; 53, crushing mechanism 1; 531, driving shaft; 532, impeller; 533, blade 1; 534, blade 2; 535, crushing knife; 536, driving wheel; 537, planetary gear; 538, gear ring; 54, crushing mechanism 2; 541, connecting rod; 542, connecting sleeve; 543, fixed shaft; 544. Crushing knife; 545. Mounting sleeve; 546. Torsion spring; 55. Guide tube; 6. Grinding assembly; 61. Grinding disc one; 62. Grinding disc two; 63. Guide seat; 64. Connecting rod; 65. Filter screen; 7. Stirring assembly; 71. Motor; 72. Stirring mechanism; 721. Movable plate; 722. Stirring rod; 723. Stirring blade; 724. Movable wheel; 73. Connecting pipe; 74. Mounting seat; 75. Gear one; 76. Gear two. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 9As shown, the present invention provides an embodiment: an agricultural waste treatment device for preparing organic fertilizer and a treatment method thereof, comprising a device base 1, a grinding cylinder 2, a crushing cylinder 3 and a lower hopper 4 are arranged on the top of the device base 1, a crushing assembly 5 is arranged inside the crushing cylinder 3, a grinding assembly 6 is arranged inside the crushing cylinder 3, a stirring assembly 7 is arranged inside the device base 1, the crushing assembly 5 includes a filter cylinder 51 fixedly connected to the crushing cylinder 3, a bottom plate 52 is fixedly connected to the bottom of the filter cylinder 51, a guide cylinder 55 is fixedly connected between the grinding cylinder 2 and the crushing cylinder 3, a crushing mechanism 1 53 and a crushing mechanism 2 54 are arranged inside the filter cylinder 51, the grinding cylinder 2 is fixedly connected to the top of the device base 1, and the lower hopper 4 is fixedly connected to the top of the crushing cylinder 3;

[0037] The crushing mechanism 1 53 includes a driving shaft 531 rotatably connected to the inside of the bottom plate 52, a crushing knife 535 is evenly fixedly connected to the top of the driving shaft 531, a blade 1 533 is rotatably connected to the upper surface of the bottom plate 52, a blade 2 534 is rotatably connected to the upper surface of the blade 1 533, and the blade 2 534 is fixedly connected to the driving shaft 531, a gear ring 538 is fixedly connected to the inside of the bottom plate 52, and one end of the driving shaft 531 located in the gear ring 538 is fixedly connected to a driving wheel 536, a planetary gear 537 is meshed and connected between the driving wheel 536 and the gear ring 538, and the planetary gear 537 is fixedly connected to the blade 1 533;

[0038] The grinding assembly 6 includes a grinding disc 1 61 and a grinding disc 2 62 fixedly connected to the bottom of the driving shaft 531, the grinding disc 2 62 is fixedly connected to the bottom of the grinding disc 1 61, the bottom of the grinding disc 2 62 is evenly fixedly connected with a connecting rod 64, the bottom of the connecting rod 64 is fixedly connected with the same guide seat 63, the connecting pipe 73 is fixedly connected to the inside of the guide seat 63, and a filter screen 65 is fixedly connected between the inner wall of the grinding cylinder 2 and the guide seat 63.

[0039] In practical application, the embodiment of the present invention is as follows: Figure 2 , Figure 3 , Figure 4 and Fig. 9 The agricultural waste enters the crushing cylinder 3 through the lower hopper 4. In the crushing cylinder 3, the crushing mechanism 53 starts to operate, and the driving shaft 531 rotates under the drive of the stirring assembly 7. The crushing knife 535 on the top thereof performs preliminary chopping of the long straw and other wastes entering. At the same time, the driving shaft 531 drives the blade 1 533 and the blade 2 534 to rotate through the meshing transmission relationship of the driving wheel 536, the planetary gear 537 and the ring gear 538, so as to further crush the preliminarily chopped waste and fully mix the crushed straw with the feces and other wastes that may enter together. In this process, the filter cylinder 51 plays a preliminary screening role. The mixed waste that meets the certain particle size requirements passes through the filter cylinder 51 and enters the grinding cylinder 2 through the guide cylinder 55.

[0040] like Figure 2 , Figure 3 and Figure 6 After entering the grinding cylinder 2, the grinding disc 1 61 and the grinding disc 2 62 connected to the driving shaft 531 grind the waste under the continuous rotation of the driving shaft 531 to ensure that the particle size of the waste is more uniform and fine. The connecting rod 64 and the guide seat 63 at the bottom of the grinding disc 2 62 play an auxiliary supporting role in the grinding process. In addition, the waste that does not meet the specifications can be guided and discharged.

[0041] The waste ground in the grinding cylinder 2 is further evenly mixed in the device base 1 under the action of the stirring assembly 7, which effectively prevents the waste from being partially accumulated in the device base 1, ensures the overall mixing efficiency, promotes full contact between the wastes, ensures the decomposition of microorganisms, and improves the efficiency and quality of organic fertilizer preparation.

[0042] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, the stirring assembly 7 includes a motor 71 and a stirring mechanism 72. The lower surface of the device base 1 is fixedly connected to a mounting seat 74. The motor 71 is fixedly installed on the lower surface of the mounting seat 74. The internal rotation of the device base 1 is connected to a connecting pipe 73. The bottom of the connecting pipe 73 is fixedly connected to a gear 2 76. The internal rotation of the mounting seat 74 is connected to a gear 1 75. The gear 1 75 is fixedly connected to the output shaft of the motor 71 through a coupling, and the gear 1 75 and the gear 2 76 are meshed with each other.

[0043] In actual application of the embodiment of the present invention, after the motor 71 is started, its output shaft rotates and drives the gear 1 75 to rotate through the coupling. Since the gear 1 75 and the gear 2 76 are meshed with each other, the rotation of the gear 1 75 drives the gear 2 76 to rotate, thereby driving the connecting pipe 73 to rotate inside the device base 1. During the rotation of the connecting pipe 73, the drive shaft 531 is driven to rotate by means of the structure associated with it in the grinding assembly 6, so that the rotation of the drive shaft 531 realizes the crushing and mixing operation of the crushing mechanism 1 53 in the crushing cylinder 3 on the agricultural waste, and the grinding operation of the grinding assembly 6 in the grinding cylinder 2 on the waste, thereby achieving synchronization of crushing, grinding and mixing; at the same time, the stirring mechanism 72 stirs the waste falling from the grinding cylinder 2 in the device base 1, so that the waste is evenly mixed in the device base 1, effectively avoiding the problem of partial accumulation caused by uneven distribution of the waste, thereby improving the overall mixing efficiency, ensuring the efficiency and stability of the agricultural waste treatment process in the organic fertilizer preparation process, and laying a solid foundation for the subsequent preparation of high-quality organic fertilizer.

[0044] like Figure 4 and Figure 5As shown, the crushing mechanism 54 includes 541 symmetrically fixedly installed on the top of the driving shaft 531, the outer sides of the two 541 are fixedly connected with a connecting sleeve 542, a fixed shaft 543 is fixedly connected between the two connecting sleeves 542, the outer side of the fixed shaft 543 is rotatably connected with a crushing knife 544 through a mounting sleeve 545, the mounting sleeve 545 is rotatably connected to the outer side of the fixed shaft 543, the crushing knife 544 is fixedly connected to the outer side of the mounting sleeve 545, and a torsion spring 546 is fixedly connected between the mounting sleeve 545 and the fixed shaft 543.

[0045] When the embodiment of the present invention is used in practice, as the driving shaft 531 rotates, 541 fixedly mounted on the top of the driving shaft 531 rotates synchronously with the shaft, thereby driving the connecting sleeve 542 and the fixed shaft 543 to rotate. During the rotation, the mounting sleeve 545 has a certain relative rotation flexibility due to the elastic action of the torsion spring 546. When encountering agricultural waste with a harder texture or irregular shape, the crushing knife 544 can rotate around the fixed shaft 543 at a certain angle through the mounting sleeve 545 under the action of contact resistance. At the same time, the torsion spring 546 deforms to accumulate elastic potential energy. When the resistance disappears or decreases, the torsion spring 546 releases the elastic potential energy, prompting the crushing knife 544 to return to its initial position or continue the cutting action, so that the crushing knife 544 can adaptively and effectively crush wastes with different characteristics, thereby enhancing the crushing ability of the crushing mechanism 2 54 on various types of agricultural wastes, and improving the working efficiency and adaptability of the entire crushing assembly 5.

[0046] like Figure 7 and Figure 8 As shown, the stirring mechanism 72 includes a movable plate 721 rotatably connected to the bottom of the device base 1, the movable plate 721 is fixedly connected to the connecting pipe 73, the interior of the movable plate 721 is symmetrically rotatably connected to a stirring rod 722, the top of the stirring rod 722 is fixedly connected to a stirring blade 723, the bottom of the stirring rod 722 is fixedly connected to a movable wheel 724, and the bottom of the device base 1 is provided with an annular groove that meshes with the movable wheel 724.

[0047] When the embodiment of the present invention is actually applied, when the connecting pipe 73 rotates under the action of gear transmission, the movable plate 721 fixedly connected thereto rotates synchronously, and the rotation of the movable plate 721 drives the stirring rod 722 rotatably connected thereto to perform circular motion around the bottom center of the device base 1. Since the movable wheel 724 at the bottom of the stirring rod 722 is meshed with the annular groove provided at the bottom of the device base 1, during the rotation of the movable plate 721, the movable wheel 724 rolls along the annular groove, causing the stirring rod 722 to rotate itself. Under the coordinated action of the revolution and rotation of the stirring rod 722, the stirring blade 723 at the top of the stirring rod 722 performs all-round and multi-angle stirring operations on the waste falling from the grinding cylinder 2 into the device base 1, effectively breaking the possible agglomeration state of the waste, so that the waste is evenly mixed in the device base 1, greatly improving the mixing efficiency, and effectively preventing the local accumulation of waste in the device base 1.

[0048] like Figure 2 and Figure 4 As shown, the outer side of the driving shaft 531 is also fixedly connected with an impeller 532, and the impeller 532 is located between the bottom plate 52 and the grinding disc 61;

[0049] In actual application of the embodiment of the present invention, when the driving shaft 531 rotates, the impeller 532 fixed to the outside thereof rotates synchronously. During the rotation process, the impeller 532 located between the bottom plate 52 and the grinding disc 61 can not only mix the waste, but also press the waste downward so that it can enter the grinding cylinder 2 for grinding better.

[0050] The present invention provides another embodiment:

[0051] A method for treating agricultural waste for preparing organic fertilizer is now proposed, comprising the following steps:

[0052] Step 1: Collect agricultural waste and dry it in the sun to remove the internal moisture;

[0053] Step 2: The agricultural waste after drying is transported to the lower hopper 4 by means of a transport device, and enters the crushing cylinder 3 through the lower hopper 4;

[0054] Step 3: Start the motor 71 to rotate the connecting pipe 73 and the driving shaft 531, and the driving shaft 531 rotates to crush the waste in the crushing cylinder 3;

[0055] Step 4: The waste enters the grinding cylinder 2, and then the connecting pipe 73 rotates to grind and screen the waste;

[0056] Step 5: The waste enters 1, and the stirring blade 723 driven by the connecting pipe 73 will achieve uniform mixing of the waste, ensuring that the waste is fully contacted.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An agricultural waste treatment device for preparing organic fertilizer, comprising a device base (1), characterized in that: The top of the device base (1) is provided with a grinding cylinder (2), a crushing cylinder (3) and a lower hopper (4); the crushing cylinder (3) is provided with a crushing assembly (5), and the crushing cylinder (3) is provided with a grinding assembly (6); the base (1) is provided with a stirring assembly (7); the crushing assembly (5) includes a filter cylinder (51) fixedly connected to the crushing cylinder (3); the bottom of the filter cylinder (51) is fixedly connected to a bottom plate (52); a guide cylinder (55) is fixedly connected between the grinding cylinder (2) and the crushing cylinder (3); a crushing mechanism 1 (53) and a crushing mechanism 2 (54) are provided inside the filter cylinder (51); the grinding cylinder (2) is fixedly connected to the top of the device base (1); and the lower hopper (4) is fixedly connected to the top of the crushing cylinder (3); The crushing mechanism (53) comprises a driving shaft (531) rotatably connected to the inside of the bottom plate (52); a crushing knife (535) is evenly and fixedly connected to the top of the driving shaft (531); a blade (533) is rotatably connected to the upper surface of the bottom plate (52); a blade (534) is rotatably connected to the upper surface of the blade (533); the blade (534) is fixedly connected to the driving shaft (531); a gear ring (538) is fixedly connected to the inside of the bottom plate (52); one end of the driving shaft (531) located in the gear ring (538) is fixedly connected to a driving wheel (536); a planetary wheel (537) is meshedly connected between the driving wheel (536) and the gear ring (538); and the planetary wheel (537) is fixedly connected to the blade (533); The grinding assembly (6) includes a grinding disc 1 (61) and a grinding disc 2 (62) fixedly connected to the bottom of a driving shaft (531); the grinding disc 2 (62) is fixedly connected to the bottom of the grinding disc 1 (61); the bottom of the grinding disc 2 (62) is evenly fixedly connected to a connecting rod (64); the bottom of the connecting rod (64) is evenly fixedly connected to the same guide seat (63); and a filter screen (65) is fixedly connected between the inner wall of the grinding cylinder (2) and the guide seat (63).

2. The agricultural waste treatment device for preparing organic fertilizer according to claim 1, characterized in that: The stirring assembly (7) comprises a motor (71) and a stirring mechanism (72); the lower surface of the device base (1) is fixedly connected to a mounting seat (74); the motor (71) is fixedly mounted on the lower surface of the mounting seat (74); a connecting pipe (73) is rotatably connected inside the device base (1); a gear 2 (76) is fixedly connected to the bottom of the connecting pipe (73); a gear 1 (75) is rotatably connected inside the mounting seat (74); the gear 1 (75) is fixedly connected to the output shaft of the motor (71) via a coupling; the gear 1 (75) and the gear 2 (76) are meshed with each other; and the connecting pipe (73) is fixedly connected to the inside of the guide seat (63).

3. The agricultural waste treatment device for preparing organic fertilizer according to claim 2, characterized in that: The second crushing mechanism (54) includes (541) symmetrically fixedly installed on the top of the driving shaft (531), the outer sides of the two (541) are fixedly connected with a connecting sleeve (542), a fixed shaft (543) is fixedly connected between the two connecting sleeves (542), and the outer side of the fixed shaft (543) is rotatably connected with a crushing knife (544) through a mounting sleeve (545).

4. The agricultural waste treatment device for preparing organic fertilizer according to claim 3, characterized in that: The mounting sleeve (545) is rotatably connected to the outside of the fixed shaft (543), the crushing knife (544) is fixedly connected to the outside of the mounting sleeve (545), and a torsion spring (546) is fixedly connected between the mounting sleeve (545) and the fixed shaft (543).

5. The agricultural waste treatment device for preparing organic fertilizer according to claim 2, characterized in that: The stirring mechanism (72) comprises a movable plate (721) rotatably connected to the bottom of the device base (1); the movable plate (721) is fixedly connected to the connecting pipe (73); a stirring rod (722) is symmetrically rotatably connected inside the movable plate (721); a stirring blade (723) is fixedly connected to the top of the stirring rod (722); a movable wheel (724) is fixedly connected to the bottom of the stirring rod (722); and an annular groove that meshes with the movable wheel (724) is provided at the bottom of the device base (1).

6. The agricultural waste treatment device for preparing organic fertilizer according to claim 2, characterized in that: The outer side of the driving shaft (531) is also fixedly connected with an impeller (532), and the impeller (532) is located between the bottom plate (52) and the grinding disc 1 (61).

7. A method for treating agricultural waste for preparing organic fertilizer, the method being based on any one of claims 1 to 6 of the agricultural waste treatment device for preparing organic fertilizer, characterized in that: The following steps are involved: Step 1: Collect agricultural waste and dry it in the sun to remove the internal moisture; Step 2: The agricultural waste after drying is transported to the lower hopper (4) by means of a transport device, and enters the crushing cylinder (3) through the lower hopper (4); Step 3: Start the motor (71) to rotate the connecting pipe (73) and the drive shaft (531), and the drive shaft (531) rotates to grind the waste in the grinding cylinder (3); Step 4: The waste enters the grinding cylinder (2), and then the connecting pipe (73) rotates to grind and screen the waste; Step 5: When the waste enters (1), the stirring blade (723) driven by the connecting pipe (73) will achieve uniform mixing of the waste, ensuring sufficient contact between the wastes.

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