Fermentation device for feed additive

Abstract

The invention discloses a fermentation device for feed additives in the technical field of fermentation equipment.The fermentation device comprises a fermentation tank, a stirring mechanism, a ventilation assembly and a rotating machine, the fermentation tank comprises a tank body, an upper end cover and a lower end cover, the upper end cover and the lower end cover are detachably connected with the tank body, and two sets of fermentation cavities which are symmetrical up and down are formed in the tank body; a crushing cavity with a contracted section is communicated between the upper fermentation cavity and the lower fermentation cavity, the stirring mechanism comprises a first driving part fixedly mounted on the upper end cover, and stirring assemblies are mounted on the surfaces, extending into the two fermentation cavities, of the first driving part; the problems that in the fermentation stirring process of an existing fermentation device for feed additives, material caking is difficult to avoid, uneven mass transfer of fermentation materials, difficult heat dissipation and the like are easily caused, and gas, liquid and the like supplemented in the fermentation process are difficult to efficiently and uniformly convey into the materials, so that the fermentation efficiency is improved are solved. And improvement of fermentation efficiency and product consistency is not facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of fermentation equipment, in particular to a fermentation device for feed additives. Background Art

[0002] Feed additives refer to small or trace substances added during the production, processing and use of feed. The amount used in feed is very small but the effect is significant. Feed additives are raw materials that must be used in the modern feed industry. They have obvious effects on enhancing the nutritional value of basic feed, improving animal production performance, ensuring animal health, saving feed costs, and improving the quality of livestock products. Fermentation is an indispensable step in the processing of feed additives.

[0003] In the production of feed additives, yeast and lactic acid bacteria are the two most commonly used functional microorganisms. They can be fermented individually or in combination to significantly enhance the nutritional value (such as small peptides, organic acids, and vitamins) and functionality (such as probiotics and antibacterial properties) of raw materials. Yeast and lactic acid bacteria can be used to ferment soybean meal + glucose, a common raw material in feed. The specific process is: yeast fermentation for 30 hours (aerobic, degrading soybean antigen proteins). Lactobacillus inoculation is then fermented for 60 hours (anaerobic, producing lactic acid to improve palatability). After processing, the content of small peptides can be effectively increased and the content of anti-nutritional factors can be reduced.

[0004] Existing fermentation devices for feed additives often use a single chamber for fermentation. However, during the actual fermentation process of materials such as soybean meal, their viscosity usually increases gradually. The stirring structure in the fermentation device is difficult to avoid the precipitation and agglomeration of solid materials, which makes it easy for problems such as uneven mass transfer and heat dissipation to occur during the fermentation process. In addition, the corresponding gas and liquid often need to be supplemented during the combined fermentation of aerobic and anaerobic methods. The supplemented gas and liquid are difficult to be delivered to the interior of the material efficiently and evenly, which is not conducive to improving the fermentation efficiency and product consistency. Therefore, those skilled in the art provide a fermentation device for feed additives to solve the problems raised in the above background technology. Summary of the Invention

[0005] The purpose of the present invention is to provide a fermentation device for feed additives to solve the problems in existing fermentation devices for feed additives that it is difficult to avoid material agglomeration during the fermentation and stirring process, which easily causes uneven mass transfer of the fermented materials and difficulty in heat dissipation. In addition, the gas and liquid added during the fermentation process are difficult to be efficiently and evenly delivered to the interior of the material, which is not conducive to improving the fermentation efficiency and product consistency.

[0006] To achieve the above object, the present invention provides the following technical solution: a fermentation device for feed additives, comprising:

[0007] A fermentation tank comprising a tank body and an upper end cover and a lower end cover detachably connected to the tank body, wherein the interior of the tank body is provided with two groups of fermentation cavities symmetrical in upper and lower directions, and a crushing chamber with a contracted cross-section is connected between the two groups of fermentation cavities;

[0008] A stirring mechanism, the stirring mechanism comprising a first driving member fixedly mounted on the upper end cover, the first driving member extending to the interior of the two sets of fermentation cavities and each having a stirring assembly mounted thereon, the stirring assembly being rotatable in contact with the inner wall of the fermentation cavity and used to mix the material in the fermentation cavity and push the material toward the crushing cavity located therebelow, the first driving member having a crushing assembly mounted thereon on the surface located within the crushing cavity;

[0009] A ventilation assembly is fixedly mounted on the outer ring of the crushing chamber of the tank body, and is used to transport gas or liquid into the crushing chamber;

[0010] The rotating mechanism includes a rotating bracket fixedly mounted on both sides of the tank body and a second driving member for controlling the rotation of the rotating bracket. The rotating bracket is rotatably connected to an equipment bracket that provides support for it and the second driving member.

[0011] Preferably: the first driving member includes a frame fixedly mounted on the top of the upper end cover, a reducer fixedly mounted on the top of the frame, a first motor fixedly mounted on the top of the reducer, and a rotating rod extending into the interior of the two groups of fermentation cavities fixedly connected to the bottom of the reducer.

[0012] Preferably, the stirring assembly includes an I-shaped bracket fixedly mounted on the rotating rod, and stirring members that rotate in contact with the inner wall of the fermentation cavity are detachably mounted on both sides of the I-shaped bracket, and a spiral blade that feeds material toward the crushing cavity is fixedly mounted on the surface of the rotating rod close to the crushing cavity.

[0013] Preferably, the stirring member comprises a trapezoidal scraping frame fixedly connected to the I-shaped bracket by bolts, the outer ring of the trapezoidal scraping frame fits the inner wall of the fermentation cavity, and two sets of upper and lower parallel stirring blades are fixedly installed inside the trapezoidal scraping frame.

[0014] Preferably, the crushing assembly comprises a plurality of groups of crushing blades fixedly mounted on a rotating rod, wherein the plurality of groups of crushing blades are equidistantly arranged around the central axis of the rotating rod, and an end of the crushing blades away from the rotating rod is close to the inner wall of the crushing chamber.

[0015] Preferably, the ventilation assembly includes two circles of ventilation pipes coiled around the outside of the tank body, and the upper and lower groups of ventilation pipes are connected to the crushing chamber by multiple groups of ventilation holes, and the upper and lower groups of ventilation holes are respectively located above and below the crushing blades, and the upper and lower groups of ventilation pipes are connected by multiple groups of connecting pipes with solenoid valves.

[0016] Preferably: the outer ring of the tank body is fixedly installed with a vertical plate supporting multiple groups of connecting pipes, and two groups of upper and lower fixed wire clamps are fixedly installed on the vertical plate. The fixed wire clamps are used to fix the connecting lines of the upper components of the fermentation device, and a clamping assembly is installed on the rotating bracket close to the vertical plate. The clamping assembly is used to position and guide the connecting lines and pipelines on the fermentation device.

[0017] Preferably: the rotating bracket includes multiple groups of racks welded to the outside of the tank body, and an annular frame is fixedly installed on the end of the rack on the same side away from the tank body. The annular frame is rotatably connected to the equipment bracket through a bearing, and the outer ring of the annular frame is fixedly installed with a gear ring connected to the second driving member, and a support clamping assembly fixing plate is welded on one group of the annular frames.

[0018] Preferably: the clamping assembly includes a sleeve connected to a fixed plate, a notch for placing lines and pipes is opened on one side of the sleeve, a splint is installed inside the sleeve for sliding up and down, the top of the splint is rotatably connected to an adjusting screw, the adjusting screw is threadedly connected to the sleeve, and two groups of auxiliary rods slidably connected to the sleeve are fixedly installed on the top of the splint.

[0019] Preferably: the second driving member includes a second motor fixedly mounted on the equipment bracket, the output end of the second motor is fixedly mounted with a round rod rotatably connected to the equipment bracket, two groups of driving gears meshing with the ring gear are fixedly mounted on the round rod, and multiple groups of auxiliary gears meshing with the outer ring of the ring gear are rotatably mounted on the equipment bracket.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The device includes a fermentation tank with a built-in stirring mechanism that can be turned upside down along with a rotating mechanism. The stirring mechanism is used to stir and mix the materials inside the fermentation tank. The stirring mechanism drives the materials to flow between the upper and lower chambers, and combined with the turning action of the tank body, three-dimensional mixing is achieved. Compared with single-chamber static fermentation, the uniformity of the materials can be effectively improved. It is particularly suitable for high-viscosity or solid-liquid mixed systems. The fermentation tank is provided with two sets of fermentation cavities that are symmetrical in upper and lower directions. The two sets of fermentation cavities are connected by a reduced crushing chamber. At the same time, a crushing assembly is provided inside the crushing chamber. The crushing assembly generates high-intensity shear force in the crushing chamber, which can effectively prevent material agglomeration or fermentation dead corners. The upward-turned materials are crushed by the crushing assembly in the crushing chamber and then fall, which can effectively dissipate heat from the materials or maintain uniform humidity throughout the materials, and can also prevent solid-liquid stratification. Furthermore, the crushing chamber is connected to a ventilation assembly, which can evenly and efficiently transport externally added gas and liquid into the materials, thereby improving the efficiency of material fermentation and product consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a side view of the overall structure of the present invention;

[0024] Figure 3 A cross-sectional view of the rotating bracket and the equipment bracket structure of the present invention;

[0025] Figure 4 is a cross-sectional view of the second driving member, fermentation tank and equipment support structure of the present invention;

[0026] Figure 5 A cross-sectional view of the integral fermentation tank and the rotating support structure of the present invention;

[0027] Figure 6 A schematic diagram of the upper end cover and its connection stirring mechanism structure of the present invention;

[0028] Figure 7 A schematic diagram of the tank body and its connecting rod structure of the present invention;

[0029] Figure 8 For the present invention Figure 2 A magnified view of center.

[0030] Legend:

[0031] 10. Fermentation tank; 101. Tank body; 102. Upper end cap; 103. Lower end cap; 11. Fermentation cavity; 12. Crushing chamber; 13. Equipment support; 14. Vent; 15. Vertical plate; 16. Fixed wire clamp; 17. Fixed plate;

[0032] 20. Stirring mechanism; 201. First driving member; 2011. Frame; 2012. Reducer; 2013. First motor; 2014. Rotating rod; 202. Stirring assembly; 2021. I-shaped bracket; 2022. Stirring element; 20221. Trapezoidal scraper frame; 20222. Stirring blade; 2023. Spiral blade; 203. Crushing assembly; 2031. Crushing blade;

[0033] 30. Ventilation assembly; 301. Ventilation pipe; 302. Solenoid valve; 303. Connecting pipe;

[0034] 40. Rotating mechanism; 401. Rotating bracket; 4011. Frame rod; 4012. Ring frame; 4013. Ring gear; 402. Second driving member; 4021. Second motor; 4022. Round rod; 4023. Driving gear; 4024. Auxiliary gear;

[0035] 50. Clamping assembly; 501. Sleeve; 502. Clamping plate; 503. Adjusting screw; 504. Auxiliary rod. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0037] See also Figures 1 to 8 In an embodiment of the present invention, a fermentation device for feed additives includes a fermentation tank 10, a stirring mechanism 20, a ventilation component 30 and a rotating mechanism 40. The fermentation tank 10 includes a tank body 101 and an upper end cover 102 and a lower end cover 103 detachably connected to the tank body 101. Two groups of fermentation cavities 11 are provided symmetrically in the interior of the tank body 101. A crushing chamber 12 with a significantly smaller cross-section is connected between the upper and lower groups of fermentation cavities 11. The stirring mechanism 20 includes a first driving member 201 fixedly mounted on the upper end cover 102. The surfaces of the first driving member 201 extending to the interior of the two groups of fermentation cavities 11 are both equipped with stirring components 202. The stirring components 202 that can rotate in contact with the inner wall of the fermentation cavity 11 are used to mix the materials in the fermentation cavity 11 and push the materials to the crushing cavity 12 located below it. The surface of the first driving member 201 located inside the crushing cavity 12 is equipped with a crushing component 203.

[0038] The upper end cover 102 can be installed with sealable feed ports, hose exhaust pipes and other components commonly used in the prior art, the tank body 101 can be installed with temperature control components, temperature and humidity sensors, etc., and the lower end cover 103 can be installed with a discharge port that is easy to seal, etc. The upper components are all common structures in the prior art and are not major innovative components, so they are not described in detail here. A flange structure can be used to achieve a detachable connection between the upper end cover 102, the lower end cover 103 and the tank body 101. The components are easy to disassemble, which is beneficial for cleaning and maintenance inside the equipment. The ventilation assembly 30 on the equipment is fixedly mounted on the outer ring of the crushing chamber 12 of the tank body 101. The ventilation assembly 30 is used to transport gas or liquid to the inside of the crushing chamber 12. The rotating mechanism 40 includes a rotating bracket 401 fixedly mounted on both sides of the tank body 101 and a second drive member 402 for controlling the rotation of the rotating bracket 401. The rotating bracket 401 is rotatably connected to an equipment bracket 13 that provides support for it and the second drive member 402.

[0039] When the fermentation device for feed additives is actually used, the material to be fermented is delivered from the feed port of the upper end cover 102 to the fermentation cavity 11 of the tank body 101. After all the materials are delivered, the upper openings of the device are sealed and closed, and the first driving member 201 is started to drive the stirring component 202 and the crushing component 203 to rotate synchronously. The rotating stirring component 202 can mix the fermentation material evenly in the fermentation cavity 11 below. During the fermentation process, the second driving member 402 can be controlled to open within a certain time interval. The second driving member 402 can drive the rotating bracket 401 to rotate on the equipment bracket 13, and the rotating bracket 401 drives the fermentation tank 10 to flip up and down 180 degrees.

[0040] The material originally in the fermentation cavity 11 at the bottom is transferred to the top. The material can fall from the crushing cavity 12 to the fermentation cavity 11 located below after rotation by its own weight. The stirring mechanism 20 always keeps running. The stirring component 202 can assist the material to move downward from the crushing cavity 12. The crushing component 203 running at the same time can fully stir and crush the agglomerated material passing through the crushing cavity 12, effectively avoiding the aggregation of the material affecting the fermentation efficiency. In addition, the material is assisted in the rotation and stirring process by a 180-degree up and down flip, which can achieve efficient heat dissipation and mixing of the material. In order to avoid entanglement of the connection line of the fermentation tank 10 during operation of the equipment, the second driving member 402 can drive the fermentation tank 10 to reverse 180 degrees after a 180-degree forward rotation.

[0041] The fermentation materials of feed additives are usually accompanied by aerobic bacteria and anaerobic bacteria. The fermentation of materials accompanied by aerobic bacteria often requires the materials in the tank to be supplemented with sterile air or oxygen, etc. The fermentation of materials accompanied by anaerobic bacteria often requires the materials in the tank to be supplemented with carbon dioxide, etc. When replenishing gas to the fermentation tank 10 or replenishing liquid to maintain the humidity of the material, the second driving member 402 can be started to drive the fermentation tank 10 to perform a 180-degree flip. When the flipped material gradually falls from the shrinking crushing chamber 12, the crushing component 203 breaks the material while the ventilation component 30 evenly transports the gas to be supplemented into the material, which can make the supplemented gas and liquid evenly mixed in the material, and can effectively avoid uneven fermentation. In addition, the fermentation materials of some feed additives will generate heat during the fermentation process. During the stirring process, the intermittent upper and lower material flipping can efficiently dissipate heat for the fermented material, thereby ensuring the quality of the final product after the material is fermented.

[0042] In one embodiment, see Figures 1 to 6Specifically, the first driving member 201 includes a frame 2011 fixedly mounted on the top of the upper end cover 102, a reducer 2012 fixedly mounted on the top of the frame 2011, a first motor 2013 fixedly mounted on the top of the reducer 2012, and a rotating rod 2014 extending into the two groups of fermentation cavities 11 is fixedly connected to the bottom of the reducer 2012. The output end of the first motor 2013 is connected to the input end of the reducer 2012, and the output end of the reducer 2012 is fixedly connected to the end of the rotating rod 2014 through a coupling. When the first motor 2013 is started, the first motor 2013 drives the rotating rod 2014 to rotate after the speed is changed by the reducer 2012, and the rotating rod 2014 drives the stirring component 202 and the crushing component 203 to rotate.

[0043] Correspondingly, the stirring assembly 202 includes an I-shaped bracket 2021 fixedly mounted on the rotating rod 2014, and stirring members 2022 that rotate in contact with the inner wall of the fermentation cavity 11 are detachably mounted on both sides of the I-shaped bracket 2021. A spiral blade 2023 that feeds material toward the crushing cavity 12 is fixedly mounted on the surface of the rotating rod 2014 close to the crushing cavity 12, wherein the stirring member 2022 includes a trapezoidal scraping frame 20221 fixedly connected to the I-shaped bracket 2021 by bolts, the outer ring of the trapezoidal scraping frame 20221 fits the inner wall of the fermentation cavity 11, and two sets of stirring blades 20222 parallel to each other are fixedly mounted inside the trapezoidal scraping frame 20221.

[0044] The rotating rod 2014 can drive the two sets of spiral blades 2023 and the I-shaped bracket 2021 fixed on its surface to rotate inside the corresponding fermentation cavity 11. The two sets of spiral blades 2023 are symmetrically installed up and down along the crushing cavity 12, so that the two sets of spiral blades 2023 can stir and transport the surrounding materials into the crushing cavity 12 below them when they rotate, avoiding blockage of the materials. The rotating trapezoidal scraping frame 20221 and the stirring blades 20222 can stir and mix the materials inside the fermentation cavity 11, which is beneficial to improving the fermentation efficiency of the materials. The trapezoidal scraping frame 20221 also facilitates preventing the materials from adhering to the inner wall of the tank body 101, thereby avoiding the occurrence of stirring dead corners, etc. The spiral blades 2023 and the I-shaped bracket 2021 can easily pass through the crushing cavity 12, and the I-shaped bracket 2021 can also be detached from the trapezoidal scraping frame 20221, which can facilitate the assembly, disassembly and replacement of the stirring mechanism 20 inside the fermentation tank 10.

[0045] Correspondingly, the crushing assembly 203 includes multiple groups of crushing blades 2031 fixedly mounted on the rotating rod 2014. The multiple groups of crushing blades 2031 are arranged equidistantly around the central axis member of the rotating rod 2014. The end of the crushing blades 2031 away from the rotating rod 2014 is close to the inner wall of the crushing chamber 12. When the fermentation material falls from the upper fermentation cavity 11 to the lower fermentation cavity 11, it passes through the crushing chamber 12. The rotating crushing blades 2031 can crush the agglomerated material, facilitating efficient heat dissipation and mass transfer of the material.

[0046] Based on the above embodiments, see Figures 2 to 8 Specifically, the ventilation assembly 30 includes two upper and lower circles of ventilation pipes 301 coiled around the outside of the tank body 101. The upper and lower groups of ventilation pipes 301 are connected to the crushing chamber 12 with multiple groups of ventilation holes 14, and the upper and lower groups of ventilation holes 14 are respectively located above and below the crushing blades 2031. The upper and lower groups of ventilation pipes 301 are connected with multiple groups of connecting pipes 303 with solenoid valves 302. The ends of the connecting pipes 303 can be connected to corresponding external air or liquid supply equipment through metal hoses and high-pressure rubber hoses. The external equipment can evenly transport gas or liquid into the material passing through the crushing chamber 12 through the ventilation pipes 301 and the connecting pipes 303. Multiple groups of connecting pipes 303 are connected to different air or liquid supply equipment. When the corresponding substance needs to be transported to the inside of the fermentation tank 10, the solenoid valve 302 can be opened. The adjustment method is simple and easy to control.

[0047] Furthermore, a vertical plate 15 supporting multiple groups of connecting pipes 303 is fixedly installed on the outer ring of the tank body 101, and two groups of upper and lower fixed wire clamps 16 are fixedly installed on the vertical plate 15. The fixed wire clamps 16 are used to fix the connecting lines of the upper components of the fermentation device. A clamping assembly 50 is installed on the rotating bracket 401 near the vertical plate 15. The clamping assembly 50 is used to position and guide the connecting lines and pipelines on the fermentation device. The power-on equipment or connecting hoses installed on the fermentation tank 10 can be fixed by the fixed wire clamp 16 and then pass through the clamping assembly 50, and finally connected to the external power supply or control equipment. The fixed wire clamp 16 can be an elastic clip or a screw-fixed clip in the prior art. A certain bendable length is left in the line between the fixed wire clamp 16 and the clamping assembly 50 and between the clamping assembly 50 and the external power supply or control equipment, so as to facilitate the normal flipping operation of the line driven by the fermentation tank 10.

[0048] The clamping assembly 50 includes a sleeve 501 connected to the fixed plate 17. A notch is provided on one side of the sleeve 501 for placing lines and pipelines. A clamping plate 502 is installed inside the sleeve 501 so as to slide up and down. An adjusting screw 503 is rotatably connected to the top of the clamping plate 502. The adjusting screw 503 is threadedly connected to the sleeve 501. Two sets of auxiliary rods 504 are fixedly installed on the top of the clamping plate 502 and are slidably connected to the sleeve 501. All pipelines connected to the fermentation tank 10 are connected through the sleeve 50 1 and then connect the external equipment. The staff rotates the adjusting screw 503, and the adjusting screw 503 drives the clamping plate 502 and the auxiliary rod 504 to move up and down. The downward-pressed clamping plate 502 can fix the pipelines to the inside of the casing 501, which is also convenient for the subsequent installation and removal of the pipelines inside the casing 501. The casing 501 can drive the pipelines inside it to rotate at the outer circle of the support point of the rotating bracket 401 when the equipment is turned up and down, which can reduce the bending length of the line and is also conducive to the neat arrangement of the line.

[0049] See Figures 1 to 6 Specifically, the rotating bracket 401 includes multiple groups of racks 4011 welded to the outside of the tank body 101, and an annular frame 4012 is fixedly installed on the end of the rack 4011 on the same side away from the tank body 101. The annular frame 4012 is rotatably connected to the equipment bracket 13 through a bearing, and the outer ring of the annular frame 4012 is fixedly installed with a gear ring 4013 connected to the second driving member 402, and a supporting clamping assembly 50 fixing plate 17 is welded on one group of the annular frames 4012, wherein the second driving member 402 includes a second motor 4021 fixedly installed on the equipment bracket 13, and a round rod 4022 rotatably connected to the equipment bracket 13 is fixedly installed on the output end of the second motor 4021, and two groups of driving gears 4023 meshing with the gear ring 4013 are fixedly installed on the round rod 4022, and multiple groups of auxiliary gears 4024 meshing with the outer ring of the gear ring 4013 are rotatably installed on the equipment bracket 13.

[0050] The second motor 4021 and the first motor 2013 can both use corresponding models in the existing technology according to the actual use requirements of the equipment. When the second motor 4021 is started, the second motor 4021 can drive the round rod 4022 and the driving gear 4023 to rotate. The driving gear 4023 can drive the ring gear 4013 and the annular frame 4012 to rotate. The annular frame 4012 can drive the fermentation tank 10 to flip up and down through the frame rod 4011 welded thereto. After the second motor 4021 controls the fermentation tank 10 to flip over, the fermentation tank 10 can rotate along the original path for the next flip. An auxiliary gear 4024 is further provided. The ring gear 4013 can drive the auxiliary gear 4024. The auxiliary gear 4024 provides it with a stable auxiliary support to improve the stability of the overall operation of the device. The control box and other components of the equipment can be installed on the side of the equipment bracket 13 close to the clamping assembly 50 to facilitate the connection of the line.

[0051] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0052] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fermentation device for feed additives, characterized in that: include: A fermentation tank (10) comprising a tank body (101) and an upper end cover (102) and a lower end cover (103) detachably connected to the tank body (101); two groups of fermentation cavities (11) are provided in the tank body (101) in an upper and lower symmetrical manner; a crushing chamber (12) with a contracted cross section is connected between the upper and lower groups of fermentation cavities (11); a stirring mechanism (20), the stirring mechanism (20) comprising a first driving member (201) fixedly mounted on the upper end cover (102), the first driving member (201) extending to the inside of the two groups of fermentation cavities (11) and having stirring components (202) mounted thereon, the stirring components (202) being adapted to rotate in contact with the inner wall of the fermentation cavity (11) and used to mix materials in the fermentation cavity (11) and push materials toward the crushing cavity (12) located therebelow, the first driving member (201) being provided with a crushing component (203) mounted on its surface located inside the crushing cavity (12); a ventilation assembly (30) fixedly mounted on the outer ring of the crushing chamber (12) of the tank body (101), the ventilation assembly (30) being used to transport gas or liquid into the interior of the crushing chamber (12); The rotating mechanism (40) comprises rotating brackets (401) fixedly mounted on both sides of the tank body (101) and second driving members (402) for controlling the rotation of the rotating brackets (401); the rotating brackets (401) are rotatably connected to a device bracket (13) for providing support for the rotating brackets and the second driving members (402).

2. A fermentation device for feed additives according to claim 1, characterized in that: The first driving member (201) includes a frame (2011) fixedly mounted on the top of the upper end cover (102), a reducer (2012) fixedly mounted on the top of the frame (2011), a first motor (2013) fixedly mounted on the top of the reducer (2012), and a rotating rod (2014) extending into the interior of the two groups of fermentation cavities (11) fixedly connected to the bottom of the reducer (2012).

3. A fermentation device for feed additives according to claim 2, characterized in that: The stirring assembly (202) includes an I-shaped bracket (2021) fixedly mounted on a rotating rod (2014), and stirring members (2022) that rotate in contact with the inner wall of the fermentation cavity (11) are detachably mounted on both sides of the I-shaped bracket (2021), and spiral blades (2023) that feed materials toward the crushing cavity (12) are fixedly mounted on the surface of the rotating rod (2014) close to the crushing cavity (12).

4. A fermentation device for feed additives according to claim 3, characterized in that: The stirring member (2022) includes a trapezoidal scraping frame (20221) fixedly connected to the I-shaped bracket (2021) by bolts, the outer ring of the trapezoidal scraping frame (20221) fits the inner wall of the fermentation cavity (11), and two sets of stirring blades (20222) parallel to each other are fixedly installed inside the trapezoidal scraping frame (20221).

5. A fermentation device for feed additives according to claim 3, characterized in that: The crushing assembly (203) comprises a plurality of groups of crushing blades (2031) fixedly mounted on a rotating rod (2014), wherein the plurality of groups of crushing blades (2031) are arranged equidistantly around the central axis of the rotating rod (2014), and an end of the crushing blades (2031) away from the rotating rod (2014) is close to the inner wall of the crushing chamber (12).

6. A fermentation device for feed additives according to claim 5, characterized in that: The ventilation assembly (30) comprises two upper and lower circles of ventilation pipes (301) wound around the outside of the tank body (101); a plurality of ventilation holes (14) are connected between the upper and lower groups of ventilation pipes (301) and the crushing chamber (12); the upper and lower groups of ventilation holes (14) are respectively located above and below the crushing blades (2031); and a plurality of connecting pipes (303) with electromagnetic valves (302) are connected between the upper and lower groups of ventilation pipes (301).

7. A fermentation device for feed additives according to claim 6, characterized in that: A vertical plate (15) supporting multiple groups of connecting pipes (303) is fixedly installed on the outer ring of the tank body (101), and two groups of upper and lower fixed clamps (16) are fixedly installed on the vertical plate (15). The fixed clamps (16) are used to fix the connecting lines of the components on the fermentation device. A clamping assembly (50) is installed on the rotating bracket (401) close to the vertical plate (15), and the clamping assembly (50) is used to position and guide the connecting lines and pipelines on the fermentation device.

8. A fermentation device for feed additives according to claim 7, characterized in that: The rotating bracket (401) includes multiple groups of racks (4011) welded to the outside of the tank body (101), and an annular frame (4012) is fixedly installed at one end of the racks (4011) on the same side away from the tank body (101). The annular frame (4012) is rotatably connected to the equipment bracket (13) through a bearing, and a gear ring (4013) connected to the second driving member (402) is fixedly installed on the outer ring of the annular frame (4012), and a supporting clamping assembly (50) fixing plate (17) is welded to one group of the annular frames (4012).

9. A fermentation device for feed additives according to any one of claim 8, characterized in that: The clamping assembly (50) includes a sleeve (501) connected to a fixed plate (17), one side of the sleeve (501) is provided with a notch for placing lines and pipelines, a clamping plate (502) is installed inside the sleeve (501) for sliding up and down, the top of the clamping plate (502) is rotatably connected to an adjusting screw (503), the adjusting screw (503) is threadedly connected to the sleeve (501), and two groups of auxiliary rods (504) slidably connected to the sleeve (501) are fixedly installed on the top of the clamping plate (502).

10. The fermentation device for feed additives according to claim 8, characterized in that: The second driving member (402) comprises a second motor (4021) fixedly mounted on the equipment bracket (13); a round rod (4022) rotatably connected to the equipment bracket (13) is fixedly mounted on the output end of the second motor (4021); two groups of driving gears (4023) meshing with the ring gear (4013) are fixedly mounted on the round rod (4022); and multiple groups of auxiliary gears (4024) meshing with the outer ring of the ring gear (4013) are rotatably mounted on the equipment bracket (13).

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