A composting device for preparing organic fertilizer by using traditional Chinese medicine residues

Abstract

The application provides a humification device for preparing organic fertilizer from traditional Chinese medicine residues, and belongs to the field of traditional Chinese medicine residue treatment, and is used for solving the problem that the existing technology is difficult to effectively release the heat accumulated in the core of the pile by turning the pile; a first ventilation channel is arranged in the stirring shaft, a second ventilation channel in communication with the first ventilation channel is arranged in the stirring blade, and an air outlet hole is formed in the stirring blade; the air supply assembly is communicated with the rotating stirring shaft through the rotary joint, so that the traditional Chinese medicine residues are turned and mixed by the stirring mechanism, and at the same time, air flow is injected into the traditional Chinese medicine residues in the turning state; the air flow is directly injected into the core area, can quickly take away the locally accumulated heat, realizes uniform cooling, and effectively avoids the inactivation of microorganisms caused by local overheating (more than 70 DEG C); the oxygen in the air flow is directly supplemented to the deep layer of the traditional Chinese medicine residues, provides sufficient oxygen source for aerobic microorganisms, and avoids the uneven oxygen supply and short circuit problems existing in the traditional bottom aeration mode.

Description

Technical Field

[0001] This invention belongs to the field of traditional Chinese medicine residue treatment, and in particular relates to a composting device for preparing organic fertilizer from traditional Chinese medicine residue. Background Technology

[0002] Traditional Chinese medicine (TCM) residue is solid waste generated during the extraction and processing of medicinal herbs. With the rapid development of the TCM industry, the output of TCM residue is increasing daily. Traditional landfill or stockpiling methods not only occupy land resources but also easily lead to rotting, mosquito and fly breeding, and leachate production, causing environmental pollution due to the high organic matter content of the residue. Since TCM residue typically contains abundant cellulose, hemicellulose, lignin, and residual active ingredients, and its carbon-to-nitrogen ratio (C / N) is suitable, it is an excellent raw material for preparing organic fertilizer. Therefore, utilizing microbial aerobic fermentation technology to decompose TCM residue and convert it into stable organic fertilizer is an important way to achieve the reduction and resource utilization of TCM residue.

[0003] During the aerobic composting process of traditional Chinese medicine residue, the pile is usually turned over periodically to dissipate heat and lower the temperature, thus preventing excessively high temperatures (usually exceeding 70°C) from inhibiting microbial activity or causing their death. However, simply turning the pile over often fails to achieve uniform temperature distribution within the pile. During turning, the surface layer of residue dissipates heat quickly, while the heat accumulated in the core is difficult to release effectively through brief mechanical stirring. After turning, the core temperature often rises rapidly, resulting in persistent localized overheating. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a composting device for preparing organic fertilizer from Chinese herbal medicine residue, which solves the problem in the prior art that it is difficult to effectively release the heat accumulated in the core of the compost pile by turning over the pile.

[0005] To achieve the above and other related objectives, the present invention provides a composting device for preparing organic fertilizer from Chinese medicinal herb residue, comprising: a composting chamber having an opening at the top; a stirring mechanism including a stirring shaft and several stirring blades mounted on the stirring shaft, wherein a first ventilation channel is provided inside the stirring shaft along its axial direction, a second ventilation channel communicating with the first ventilation channel is provided inside the stirring blades, and multiple air outlets communicating with the second ventilation channel are provided on the stirring blades; a rotary drive mechanism for driving the stirring shaft to rotate around its own axis; and a ventilation mechanism including an air supply component and a rotary joint, wherein one end of the rotary joint is connected to the air supply component, and the other end is rotatably and sealingly connected to the end of the stirring shaft, and the airflow generated by the air supply component flows sequentially through the first ventilation channel and the second ventilation channel and is discharged through the air outlets.

[0006] Optionally, it also includes a translation drive mechanism for driving the stirring shaft to reciprocate within the composting chamber.

[0007] Optionally, the stirring shaft includes a first drive shaft, a second drive shaft, and a limiting assembly; the first drive shaft and the second drive shaft are respectively provided with a first ventilation channel; the first drive shaft is connected to a rotary drive mechanism and a rotary joint; the second drive shaft is slidably connected to the first drive shaft, the stirring blade is disposed on the second drive shaft, the translation drive mechanism is connected to the second drive shaft, and it is used to drive the second drive shaft to reciprocate within the composting chamber; the limiting assembly is used to restrict relative rotation between the first drive shaft and the second drive shaft.

[0008] Optionally, the limiting assembly includes a first limiting member disposed on the outer side wall of the first drive shaft and a second limiting member disposed on the inner side wall of the second drive shaft. The first limiting member is used to cooperate with the second limiting member to limit relative rotation between the first drive shaft and the second drive shaft.

[0009] Optionally, the translation drive mechanism includes a first drive member, a connecting assembly, and a shielding member; the shielding member is located inside the composting chamber and directly above the stirring blades; the connecting assembly is connected to the second drive shaft and the shielding member, and the first drive member is used to drive the connecting assembly to move, so as to drive the second drive shaft and the shielding member to reciprocate within the composting chamber.

[0010] Optionally, the top of the composting chamber is also provided with a cover plate, on which multiple heat dissipation holes are spaced apart.

[0011] Optionally, the cover plate is hinged to the outer wall of the fermentation chamber; the shielding member is slidably connected to the cover plate, one end of the cover plate extends out of the fermentation chamber and is hinged to the connecting assembly, and the hinge axis a of the shielding member and the connecting assembly is coincident with the hinge axis b of the cover plate and the outer wall of the fermentation chamber.

[0012] Optionally, the connecting assembly includes a first connector, a second connector, and a third connector; the first end of the first connector is connected to the first drive member, and the second end is provided with a first clearance hole and a limiting hole for the second drive shaft to pass through. The first clearance hole and the limiting hole are connected, and the connection between the two forms a limiting step; the second connector is provided with a second clearance hole for the second drive shaft to pass through; a limiting part is provided on the outer wall of the second drive shaft, the limiting part is located in the limiting hole, one end of which abuts against the second connector, and the other end abuts against the limiting step, and the second connector is connected to the first connector; the first end of the third connector is connected to the first connector, and the second end is hinged to the shielding member.

[0013] Optionally, the rotary drive mechanism includes a second drive member, a first pulley, a second pulley, a belt, and a support member; the first drive shaft is rotatably connected to the support member; the first pulley is connected to the second drive member, the second pulley is connected to the first drive shaft, and the belt is sleeved on the first pulley and the second pulley; a rotary joint is disposed on the support member.

[0014] Optionally, the air supply assembly includes a fan and an air supply duct, with one end of the air supply duct connected to the fan and the other end connected to a rotary joint.

[0015] As described above, the composting device for preparing organic fertilizer from Chinese medicinal herb residue according to the present invention has at least the following beneficial effects: 1. By setting a first ventilation channel inside the stirring shaft and a second ventilation channel connected to the first ventilation channel inside the stirring blades, and opening air outlets on the stirring blades, and connecting the air supply component to the rotating stirring shaft with a rotary joint, airflow is simultaneously injected into the tumbling dregs of traditional Chinese medicine while the stirring mechanism is tumbling and mixing them. This "stirring and ventilating simultaneously" working mode has the following outstanding advantages: First, the airflow is directly injected into the core area, which can quickly remove locally accumulated heat, achieve uniform cooling, and effectively avoid microbial inactivation due to local overheating (above 70°C); Second, the oxygen in the airflow directly replenishes the deep layer of the dregs of traditional Chinese medicine, providing sufficient oxygen source for aerobic microorganisms and avoiding the uneven oxygen supply and short-circuit problems of traditional bottom aeration methods; Third, the tumbling of the dregs of traditional Chinese medicine by the stirring blades and the airflow ejected from the air outlets form convective contact, which can loosen the dregs of traditional Chinese medicine, prevent caking, and significantly improve oxygen utilization, thereby significantly shortening the composting cycle and improving the uniformity and stability of the composting products.

[0016] 2. By setting up a translation drive mechanism, the stirring shaft is driven to move axially back and forth within the composting chamber, allowing the working range of the stirring blades to cover the entire length of the composting chamber. Compared to a fixed stirring structure, this solution can achieve all-round uniform stirring of Chinese herbal medicine residue in a larger capacity composting chamber without increasing the number of stirring blades, effectively increasing the single batch processing capacity and reducing the equipment investment cost and floor space per unit of Chinese herbal medicine residue.

[0017] 3. Link the shielding component with the translation drive mechanism so that it moves synchronously with the stirring shaft and is always positioned directly above the stirring blades. The shielding component effectively blocks splashed medicinal residue and leachate during stirring and tumbling, preventing them from clogging the heat dissipation holes on the cover plate and ensuring unobstructed air exchange between the composting chamber and the external environment. At the same time, the shielding component also prevents medicinal residue from adhering to the cover plate, facilitating equipment cleaning and maintenance. Attached Figure Description

[0018] Figure 1The diagram shown is an overall structural schematic of a composting device for preparing organic fertilizer from Chinese medicinal herb residue according to the present invention.

[0019] Figure 2 The diagram shown is a schematic representation of the structure of a composting device for preparing organic fertilizer from Chinese medicinal herb residue according to the present invention, with the composting chamber omitted.

[0020] Figure 3 The diagram shown is a cross-sectional view of the second drive shaft, used to show the connection relationship between the second drive shaft, the first connecting member, and the second connecting member; Figure 4 The diagram shows the connection between the cover plate and the shield.

[0021] Component designation explanation: 100. Base; 200. Composting chamber; 210. Bottom plate; 220. Side plate; 230. Cover plate; 231. Heat dissipation hole; 232. First slide groove; 233. Second slide groove; 300. Stirring mechanism; 310. Stirring shaft; 311. First drive shaft; 312. Second drive shaft; 3121. Limiting part; 313. First limiting member; 314. Second limiting member; 320. Stirring blade; 321. Air outlet; 400. Rotary drive mechanism; 410. Second drive member; 420. First pulley. 430, Second pulley; 440, Belt; 450, Support component; 500, Ventilation mechanism; 510, Air supply assembly; 511, Air supply duct; 520, Rotary joint; 600, Translation drive mechanism; 610, First drive component; 620, Transmission component; 630, First guide component; 640, Connecting assembly; 641, First connecting component; 6411, Limiting step; 642, Second connecting component; 643, Third connecting component; 644, Second guide component; 650, Blocking component; 651, Third limiting component. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0023] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0024] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0025] Please see Figure 1-2 The present invention provides a composting device for preparing organic fertilizer from Chinese herbal medicine residue, which includes a base 100 and a composting chamber 200, a stirring mechanism 300, a rotary drive mechanism 400 and a ventilation mechanism 500 disposed on the base 100.

[0026] The composting chamber 200 is formed by a bottom plate 210 and multiple side plates 220. The upper side of the composting chamber 200 has an opening, which serves as a hopper for adding or removing composted medicinal herb residue from the chamber. This opening also facilitates air exchange between the interior of the composting chamber 200 and the external environment, ensuring sufficient gas exchange conditions for aerobic microorganisms during the composting process. In one implementation, the bottom plate 210 is designed with an arc shape to effectively prevent the accumulation of medicinal herb residue in the corners of the chamber, thereby improving the flow path of the residue during stirring and allowing the stirring blades 320 to more evenly agitate the residue throughout the chamber, thus enhancing the uniformity of the composting effect.

[0027] The stirring mechanism 300 includes a stirring shaft 310 and several stirring blades 320 mounted on the stirring shaft 310. A clearance hole is provided on one side plate 220 of the composting chamber 200. One end of the stirring shaft 310 is located outside the composting chamber 200, and the other end passes through the clearance hole and is located inside the composting chamber 200, connected to the stirring blades 320. The stirring shaft 310 is rotatably connected to the wall of the clearance hole. The end of the stirring shaft 310 located outside the composting chamber 200 is connected to a rotary drive mechanism 400. The rotary drive mechanism 400 drives the stirring shaft 310 to rotate around its own axis, thereby driving the stirring blades 320 to rotate, thus achieving continuous stirring and agitation of the medicinal residue within the composting chamber 200.

[0028] The stirring shaft 310 has a first ventilation channel along its axial direction inside, and each stirring blade 320 has a second ventilation channel communicating with the first ventilation channel inside. Each stirring blade 320 has an air outlet 321 communicating with the second ventilation channel. The air outlet 321 can be located on the side of the stirring blade 320 opposite to the direction of rotation, thereby preventing the dregs of Chinese herbal medicine from clogging the air outlet 321 during the stirring process.

[0029] The ventilation mechanism 500 includes an air supply assembly 510 and a rotary joint 520 located outside the composting chamber 200. One end of the rotary joint 520 is connected to the air supply assembly 510, and the other end is rotatably and sealingly connected to the end of the stirring shaft 310. It should be noted that the rotary joint 520 is a common transition structure in the field of pipeline connection used to realize the fluid or gas transportation between rotating and stationary components. Its specific internal structure and working principle are well known to those skilled in the art, and will not be described in detail in this embodiment. The airflow generated by the air supply assembly 510 enters the interior of the stirring shaft 310 through the rotary joint 520, and flows sequentially through the first ventilation channel and the second ventilation channel, and finally exits from the air outlet 321 on the stirring blade 320.

[0030] This embodiment combines the stirring mechanism 300 with the ventilation mechanism 500. A first ventilation channel is provided inside the stirring shaft 310, and a second ventilation channel and air outlet 321 are provided inside the stirring blades 320. This allows for the simultaneous injection of airflow into the tumbled medicinal residue while the stirring mechanism 300 is agitating it. Firstly, the airflow directly injects into the core area, quickly removing locally accumulated heat and achieving uniform cooling, effectively preventing microbial inactivation due to localized overheating (above 70°C). Secondly, the oxygen in the airflow directly replenishes the deep layers of the medicinal residue, providing ample oxygen for aerobic microorganisms and avoiding the uneven oxygen supply and short-circuit problems inherent in traditional bottom aeration methods. Thirdly, the tumbled medicinal residue agitated by the stirring blades 320 and the airflow ejected from the air outlet 321 form convective contact, loosening the residue and preventing caking. This loosening also significantly improves oxygen utilization, thereby significantly shortening the composting cycle and improving the uniformity and stability of the composted products.

[0031] The length of the composting chamber 200 extending along the axis of the stirring shaft 310 is greater than the length of the stirring blades 320 extending along the axis of the stirring shaft 310, thereby increasing the capacity of the composting chamber 200 and improving the single-batch processing capacity. To ensure that the stirring blades 320 can thoroughly stir the medicinal residue within the composting chamber 200, a translational drive mechanism 600 is also included to drive the stirring shaft 310 to reciprocate within the composting chamber 200. The translational drive mechanism 600 can drive the rotary drive mechanism 400 and the stirring mechanism 300 as a whole to reciprocate along the axial direction of the stirring shaft 310, or it can drive the stirring mechanism 300 to reciprocate along the axial direction of the stirring shaft 310 independently.

[0032] In this embodiment, the translation drive mechanism 600 drives the stirring mechanism 300 to reciprocate along the axial direction of the stirring shaft 310. Specifically, the stirring shaft 310 may include a first drive shaft 311, a second drive shaft 312, and a limiting assembly. The first drive shaft 311 and the second drive shaft 312 are respectively provided with first ventilation channels. The first drive shaft 311 is connected to the rotary drive mechanism 400 and the rotary joint 520. The second drive shaft 312 is slidably connected to the first drive shaft 311, and the stirring blade 320 is disposed on the second drive shaft 312. The translation drive mechanism 600 is connected to the second drive shaft 312 and is used to drive the second drive shaft 312 to reciprocate within the composting chamber 200. The limiting assembly is used to restrict relative rotation between the first drive shaft 311 and the second drive shaft 312, ensuring that the rotary drive mechanism 400 can drive the first drive shaft 311 and the second drive shaft 312 to rotate simultaneously.

[0033] The limiting assembly may include a first limiting member 313 and a second limiting member 314. The first limiting member 313 is disposed on the outer side wall of the first drive shaft 311. The second limiting member 314 is disposed on the inner side wall of the second drive shaft 312. The first limiting member 313 cooperates with the second limiting member 314 to limit relative rotation between the first drive shaft 311 and the second drive shaft 312. The first limiting member 313 may be a protruding structure extending along the axis of the first drive shaft 311, and the second limiting member 314 may be a groove structure extending along the axis of the second drive shaft 312. The number of first limiting members 313 and second limiting members 314 may be multiple to improve the smoothness of torque transmission. Multiple first limiting members 313 are spaced apart circumferentially along the first drive shaft 311. Second limiting members 314 are spaced apart circumferentially along the second drive shaft 312, and the first limiting members 313 and second limiting members 314 are arranged in a one-to-one correspondence.

[0034] To prevent airflow leakage, a seal (not shown in the figure) may be provided between the outer wall of the first drive shaft 311 and the inner wall of the second drive shaft 312. The seal may be made of elastic materials such as rubber to maintain the airtightness of the first ventilation channel.

[0035] Please see Figure 1-2 4. The translation drive mechanism 600 includes a first drive component 610, a transmission component 620, a first guide component 630, a connecting assembly 640, and a blocking component 650. The first drive component 610, transmission component 620, and first guide component 630 can be mounted on the base 100. The first drive component 610 can be a motor, the transmission component 620 can be a lead screw, and the first guide component 630 can be a guide rail. The connecting assembly 640 is slidably connected to the first guide component 630 via a slider, and is also connected to the transmission component 620 via a lead screw nut. A second transmission shaft 312 is connected to the connecting assembly 640 and is rotatable relative to the connecting assembly 640. The connecting assembly 640 is also connected to the blocking component 650. The blocking component 650 is located within the fermentation chamber 200 and is positioned directly above the stirring blade 320. The first driving component 610 drives the connecting assembly 640 to slide on the first guide component 630 via the transmission component 620. This, in turn, drives the second transmission shaft 312 and the shielding component 650 to reciprocate synchronously within the composting chamber 200. Thus, while the stirring blades 320 agitate the medicinal residue, the shielding component 650 shields the agitated residue, effectively preventing the residue or leachate generated during composting from splashing out of the composting chamber 200.

[0036] A cover plate 230 is also provided on the top of the composting chamber 200. The cover plate 230 is used to close the opening of the composting chamber 200. Multiple heat dissipation holes 231 are provided on the cover plate 230 at intervals to allow air exchange between the composting chamber 200 and the outside. The shielding component 650 is provided to prevent the medicinal residue from splashing and clogging the heat dissipation holes 231 when the medicinal residue is turned over, ensuring smooth air exchange between the composting chamber 200 and the external environment. In addition, the shielding component 650 also prevents the medicinal residue from sticking to the cover plate 230, facilitating subsequent cleaning.

[0037] The cover plate 230 and the outer wall of the composting chamber 200 can be hinged via a structure such as a hinge to facilitate opening the composting chamber 200 when transferring medicinal residue. The shielding member 650 is slidably connected to the cover plate 230, with one end extending outside the composting chamber 200 and hinged to the connecting assembly 640. Specifically, a first sliding groove 232, which is a through groove, can be provided on the rear side wall of the cover plate 230. A second sliding groove 233 is provided on the inner side of the front side wall of the cover plate 230. The shielding member 650 can be a plate-shaped structure made of plastic or similar materials, and it is slidably connected to the first sliding groove 232 and the second sliding groove 233. The first end of the cover plate 230 abuts against the bottom of the second slide groove 233, and the second end passes through the first slide groove 232 and is hinged to the connecting assembly 640. The hinge axis a of the blocking member 650 and the connecting assembly 640 coincides with the hinge axis b of the outer wall of the cover plate 230 and the fermentation chamber 200. Thus, when the cover plate 230 is opened around the hinge axis b, the hinge point between the blocking member 650 and the connecting assembly 640 moves with the cover plate 230. Because the two axes coincide, the blocking member 650 will not interfere with the opening of the cover plate 230, ensuring that the cover plate 230 can be opened normally.

[0038] To prevent the shielding member 650 from sliding out of the composting chamber 200, a third limiting member 651 may be provided on the shielding member 650. The third limiting member 651 can be a limiting block, which can be set on the lower side of the shielding member 650 by means of screws or other structures and located inside the composting chamber 200. The third limiting member 651 is used to abut against the inner side of the rear sidewall of the composting chamber 200.

[0039] Please see Figure 1-23. The connecting assembly 640 may include a first connecting member 641, a second connecting member 642, a third connecting member 643, and a second guide member 644. One end of the first connecting member 641 is connected to the first guide member 630 via a slider and to the transmission member 620 via a lead screw and nut. The second end of the first connecting member 641 is provided with a first clearance hole and a limiting hole for the second transmission shaft 312 to pass through. The first clearance hole and the limiting hole are connected, and a limiting step 6411 is formed at the connection between the first clearance hole and the limiting hole. The second connecting member 642 is provided with a second clearance hole for the second transmission shaft 312 to pass through. The second transmission shaft 312 is provided with a limiting part 3121, which may be a flange structure. The limiting part 3121 is located inside the limiting hole. One end of the limiting part 3121 abuts against the first connecting member 641, and the other end abuts against the limiting step. The first connecting member 641 and the second connecting member 642 can be connected together by bolts or other structures to limit the flange between the first connecting member 641 and the second connecting member 642. The connection between the first connecting member 641, the second connecting member 642 and the limiting part 3121 can also be coated with lubricating grease to reduce the friction between the three, thereby ensuring that the second drive shaft 312 can rotate. The second guide member 644 can be a guide rail, which is set on the outer side of the rear sidewall of the corrosion chamber 200. One end of the third connecting member 643 is connected to the first connecting member 641 by welding or other means, and the other end is hinged to the shield 650. The third connecting member 643 and the second guide member 644 are slidably connected by a slider to improve the stability of the reciprocating movement of the third connecting member 643.

[0040] The rotary drive mechanism 400 may include a second drive member 410, a first pulley 420, a second pulley 430, a belt 440, and a support member 450. The support member 450 is mounted on the base 100, and the first drive shaft 311 and the support member 450 are rotatably connected via bearings or other structures. The second drive member 410 may be a motor. The first pulley 420 is coaxially mounted with the output shaft of the second drive member 410, the second pulley 430 is connected to the first drive shaft 311, and the belt 440 is fitted onto the first pulley 420 and the second pulley 430. The diameter of the first pulley 420 is smaller than the diameter of the second pulley 430, thereby achieving speed reduction and torque increase, allowing the stirring shaft 310 to obtain greater torque to adapt to the stirring resistance of the medicinal residue. The fixed end of the rotary joint 520 is mounted on the support member 450 to ensure the coaxiality of the rotary joint 520 and the first drive shaft 311, reducing uneven wear during operation.

[0041] The air supply assembly 510 may include a fan (not shown) and an air supply duct 511, one end of which is connected to the fan and the other end is connected to a rotary joint 520, so as to use the fan to generate airflow and deliver it to the first ventilation channel via the air supply duct 511.

[0042] The air supply assembly 510 may also include a cooling chamber, which contains a cooling structure (not shown in the figure). The cooling structure may specifically employ a compressor-type cooling unit or a semiconductor cooling chip, or other devices capable of active cooling. When the air supply assembly 510 is in operation, the cooling structure first cools the air inside the chamber to create cold air. Then, a fan sends the cooled air into the rotary joint 520, and after passing through the first ventilation channel and the second ventilation channel, it is ejected from the air outlet 321 on the stirring blades 320. By introducing an active cooling structure, the temperature of the airflow entering the Chinese herbal medicine residue pile can be lower than the ambient temperature. This allows for rapid cooling of the pile core while simultaneously supplying oxygen to the Chinese herbal medicine residue, further enhancing temperature control capabilities and effectively preventing localized overheating. This is particularly suitable for composting operations during high-temperature seasons or in large-scale continuous production scenarios.

[0043] In summary, this invention provides a traditional Chinese medicine residue composting device that integrates stirring, translation, ventilation, and cooling. It can effectively solve the problems of disconnection between oxygen supply and heat dissipation, easy overheating of the core, and low oxygen utilization rate in the prior art, and has significant practicality and progress.

[0044] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A composting device for preparing organic fertilizer from Chinese medicinal herb residue, characterized in that, include: A composting chamber (200) having an opening at its top; A stirring mechanism (300) includes a stirring shaft (310) and a plurality of stirring blades (320) mounted on the stirring shaft (310). The stirring shaft (310) has a first ventilation channel along its axial direction inside. The stirring blades (320) have a second ventilation channel communicating with the first ventilation channel inside. The stirring blades (320) have a plurality of air outlets (321) communicating with the second ventilation channel. A rotary drive mechanism (400) is used to drive the stirring shaft (310) to rotate about its own axis; The ventilation mechanism (500) includes an air supply assembly (510) and a rotary joint (520). One end of the rotary joint (520) is connected to the air supply assembly (510), and the other end is rotatably and sealingly connected to the end of the stirring shaft (310). The airflow generated by the air supply assembly (510) flows sequentially through the first ventilation channel and the second ventilation channel and is discharged through the air outlet (321).

2. The composting device for preparing organic fertilizer from Chinese medicinal herb residue according to claim 1, characterized in that: It also includes a translation drive mechanism (600) for driving the stirring shaft (310) to reciprocate within the composting chamber (200).

3. The composting device for preparing organic fertilizer from Chinese medicinal herb residue according to claim 2, characterized in that: The stirring shaft (310) includes a first drive shaft (311), a second drive shaft (312), and a limiting component; the first drive shaft (311) and the second drive shaft (312) are respectively provided with a first ventilation channel; the first drive shaft (311) is connected to the rotary drive mechanism (400) and the rotary joint (520); the second drive shaft (312) is slidably connected to the first drive shaft (311), the stirring blade (320) is disposed on the second drive shaft (312), the translation drive mechanism (600) is connected to the second drive shaft (312), and it is used to drive the second drive shaft (312) to reciprocate within the composting chamber (200); the limiting component is used to restrict relative rotation between the first drive shaft (311) and the second drive shaft (312).

4. The composting device for preparing organic fertilizer from Chinese medicinal herb residue according to claim 3, characterized in that: The limiting assembly includes a first limiting member (313) disposed on the outer side wall of the first drive shaft (311) and a second limiting member (314) disposed on the inner side wall of the second drive shaft (312). The first limiting member (313) is used to cooperate with the second limiting member (314) to limit relative rotation between the first drive shaft (311) and the second drive shaft (312).

5. The composting device for preparing organic fertilizer from Chinese medicinal herb residue according to claim 3, characterized in that: The translation drive mechanism (600) includes a first drive member (610), a connecting assembly (640), and a shielding member (650); the shielding member (650) is located inside the fermentation chamber (200) and directly above the stirring blade (320); the connecting assembly (640) is connected to the second drive shaft (312) and the shielding member (650), and the first drive member (610) is used to drive the connecting assembly (640) to move, so as to drive the second drive shaft (312) and the shielding member (650) to reciprocate within the fermentation chamber (200).

6. The composting device for preparing organic fertilizer from Chinese medicinal herb residue according to claim 5, characterized in that: The top of the composting chamber (200) is also provided with a cover plate (230), and the cover plate (230) is provided with a plurality of heat dissipation holes (231) at intervals.

7. The composting device for preparing organic fertilizer from Chinese medicinal herb residue according to claim 6, characterized in that: The cover plate (230) is hinged to the outer wall of the fermentation chamber (200); The shielding member (650) is slidably connected to the cover plate (230). One end of the cover plate (230) extends out of the fermentation chamber (200) and is hinged to the connecting assembly (640). The hinge axis a of the shielding member (650) and the connecting assembly (640) coincides with the hinge axis b of the outer wall of the cover plate (230) and the fermentation chamber (200).

8. The composting device for preparing organic fertilizer from Chinese medicinal herb residue according to claim 7, characterized in that: The connecting assembly (640) includes a first connector (641), a second connector (642), and a third connector (643); The first end of the first connector (641) is connected to the first drive member (610), and the second end is provided with a first clearance hole and a limiting hole for the second drive shaft (312) to pass through. The first clearance hole and the limiting hole are connected, and the connection between the two forms a limiting step (6411). The second connector (642) is provided with a second clearance hole for the second drive shaft (312) to pass through. A limiting part (3121) is provided on the outer side wall of the second drive shaft (312). The limiting part (3121) is located in the limiting hole. One end of the limiting part (3121) abuts against the second connector (642), and the other end abuts against the limiting step (6411). The second connector (642) is connected to the first connector (641). The first end of the third connector (643) is connected to the first connector (641), and the second end is hinged to the shield (650).

9. The composting apparatus for preparing organic fertilizer from Chinese medicinal herb residue according to any one of claims 3-8, characterized in that: The rotary drive mechanism (400) includes a second drive member (410), a first pulley (420), a second pulley (430), a belt (440), and a support member (450); The first drive shaft (311) is rotatably connected to the support member (450); The first pulley (420) is connected to the second drive member (410), the second pulley (430) is connected to the first drive shaft (311), and the belt (440) is sleeved on the first pulley (420) and the second pulley (430); The rotary joint (520) is disposed on the support (450).

10. The composting device for preparing organic fertilizer from Chinese medicinal herb residue according to claim 9, characterized in that: The air supply assembly (510) includes a fan and an air supply pipe (511), one end of which is connected to the fan and the other end is connected to the rotary joint (520).

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