Multi-strain fermentation apparatus and fermentation method thereof

Abstract

The present application relates to fermentation equipment technical field, disclose a kind of multi-strain fermentation equipment and its fermentation method, including fermenter and tank cover, the inner wall of the fermenter is fixedly installed with fermentation bed near its bottom, further comprising: feed pipe, the feed pipe is rotated and installed in the center position of tank cover, the bottom end of the feed pipe is installed with material distribution pipe, hose is fixedly installed between the feed pipe and material distribution pipe;Rotary mechanism, the rotary mechanism is used to drive feed pipe and material distribution pipe whole rotation.The present application drives feed pipe and material distribution pipe whole rotation by stepper motor, and reciprocating screw rod is rotated using the cooperation of transmission gear and end face gear ring, so that material distribution pipe moves horizontally along axial direction while rotating, to realize the composite motion of raw material's circumferential spreading and linear reciprocating spreading on fermentation bed, effectively avoid raw material local accumulation by stereoscopic distribution mode, greatly improve inoculation consistency and subsequent fermentation homogeneity.

Description

Technical Field

[0001] This invention relates to the field of fermentation equipment technology, and in particular to a multi-strain fermentation equipment and its fermentation method. Background Technology

[0002] In the fields of food, bioengineering, and pharmaceuticals, multi-strain fermentation technology is widely used in the production of various fermented products, such as alcoholic beverages, vinegar, yogurt, and antibiotics. Traditional multi-strain fermentation processes typically require cultivating different strains of microorganisms separately, and then mixing the strains with the raw materials before fermentation.

[0003] An existing multi-strain fermentation device and its fermentation process (publication number: CN120818424B) has at least the following drawbacks: The above-mentioned patent automatically distributes the cleaned and crushed raw materials equally to different fermentation tanks by setting up a material distribution mechanism and a dual-chamber addition box; since the fermentation raw materials are directly put into the fermentation tank from a fixed feed pipe, it is easy for the fermentation raw materials to accumulate on the fermentation bed, thereby affecting the consistency of multi-strain inoculation and the homogeneity of subsequent fermentation. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-strain fermentation device and its fermentation method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A multi-strain fermentation device includes a fermenter and a lid, wherein a fermentation bed is fixedly installed on the inner wall of the fermenter near its bottom, and further includes: The feed pipe is rotatably installed through the center of the can lid, and a sprinkling pipe is installed at the bottom end of the feed pipe. A flexible hose is fixedly installed between the feed pipe and the sprinkling pipe. A rotating mechanism is used to drive the feed pipe and the dispensing pipe to rotate as a whole. The oscillating mechanism, which is connected to the rotating mechanism, is used to drive the spreading pipe to move back and forth in the radial direction of the fermentation tank, so as to spread the fermentation raw materials evenly onto the fermentation bed. A compaction mechanism, installed on the feed pipe, is used to flatten and compact the fermentation raw materials on the fermentation bed.

[0006] As a further embodiment of the present invention, the rotating mechanism includes a mounting plate fixedly installed on the top of the can lid, a stepper motor fixedly installed on the top of the mounting plate, and a transmission pulley fixedly installed on both the output end of the stepper motor and the outer surface of the feed pipe, and a transmission belt is sleeved between the outer surfaces of the two transmission pulleys.

[0007] As a further embodiment of the present invention, the swing mechanism includes a crossbeam fixedly installed on the outer surface of the feed pipe, a slide table slidably installed on the inner wall of the crossbeam, tension spring rods fixedly installed on the lower surfaces of both ends of the slide table, a portal frame fixedly installed on the telescopic end of the tension spring rods, a rotating shaft fixedly installed on the outer surface of the dispensing pipe, the rotating shaft being rotatably installed on the outer surface of the portal frame, and a transmission assembly installed between the slide table and the can lid.

[0008] As a further embodiment of the present invention, the transmission assembly includes a reciprocating lead screw that is rotatably mounted between the two ends of the crossbeam. The reciprocating lead screw passes through the outer surface of the slide and is threadedly connected to it. A transmission gear is fixedly mounted on one end of the reciprocating lead screw. An end face gear ring is fixedly mounted on the top wall of the can lid. The transmission gear meshes with the end face gear ring.

[0009] As a further embodiment of the present invention, the compaction mechanism includes a sliding sleeve that is vertically fixedly installed on the outer surface of the feed pipe. The sliding sleeve has a "C" shaped cross-section. A lifting plate is slidably installed on the inner wall of the sliding sleeve. A floating block is fixedly installed at the bottom end of the lifting plate. An extrusion assembly is installed between the outer surface of the sliding sleeve and the lifting plate.

[0010] As a further embodiment of the present invention, the extrusion assembly includes two thrust spring rods symmetrically fixedly installed on the outer surface of the sliding sleeve. The telescopic ends of the two thrust spring rods are fixedly installed with limit sleeves. A vertical plate is slidably installed on the inner wall of the limit sleeve. A pawl facing the sliding sleeve is fixedly installed at the bottom end of the vertical plate. A plurality of slots matching the pawls are evenly opened on the outer surface of the lifting plate near the vertical plate.

[0011] As a further embodiment of the present invention, a triggering assembly is installed between the vertical plate and the slide table. The triggering assembly includes an L-shaped push rod fixedly installed at the top of the vertical plate, and the end of the L-shaped push rod intermittently abuts against the outer surface of the slide table.

[0012] As a further embodiment of the present invention, a guide assembly is installed between the sliding sleeve and the vertical plate. The guide assembly includes a V-shaped guide frame fixedly installed on the outer surface of the sliding sleeve, and a guide post fixedly installed on the outer surface of the vertical plate. The guide post is slidably installed on the inner wall of the V-shaped guide frame, and the internal through groove of the V-shaped guide frame is composed of a translation section groove and a descent section groove that are interconnected.

[0013] As a further embodiment of the present invention, a ramp is fixedly installed at the bottom end of the cross frame, a top rod is fixedly installed at the top end of the portal frame, the top end of the top rod abuts against the inclined surface of the ramp, and a plurality of protruding columns are uniformly fixedly installed on the inclined surface of the ramp.

[0014] A multi-strain fermentation method includes the following steps: S1: The multi-strain fermentation raw materials to be fermented are fed into the fermentation tank through the feed pipe. At the same time as the raw materials are fed, the transmission pulley is driven to rotate by the stepper motor. The transmission pulley, together with the transmission belt, drives the feed pipe and the spreading pipe to rotate in the fermentation tank, so that the spreading pipe spreads the raw materials in a circumferential direction on the fermentation bed. S2: While the feed pipe is rotating, it will drive the entire cross frame to rotate, causing the transmission gear to roll on the end face gear ring that meshes with it. The transmission gear will drive the reciprocating screw to rotate, and the reciprocating screw will drive the slide table connected to it to move back and forth along the axial direction. This allows the slide table to drive the spreading pipe to move horizontally while rotating through the tension spring rod, the gantry frame and the rotating shaft, so that the raw materials can be evenly spread on the fermentation bed. S3: While the feed pipe is rotating, it will also drive the sliding sleeve to rotate, so that the sliding sleeve drives the floating block to move through the lifting plate, so that the floating block can smooth the fermentation raw materials on the surface of the fermentation bed.

[0015] The beneficial effects of this invention are as follows: 1. The feed pipe and the spreading pipe are rotated as a whole by a stepper motor, and the reciprocating screw is rotated by the cooperation of the transmission gear and the end face gear ring. The spreading pipe moves horizontally along the axis while rotating, thereby realizing the compound motion of circular spreading and linear reciprocating spreading of raw materials on the fermentation bed. The three-dimensional material spreading method can effectively avoid local accumulation of raw materials and greatly improve the inoculation consistency and the homogeneity of subsequent fermentation. 2. When the feed pipe rotates, it drives the sliding sleeve and lifting plate to move, so that the floating block continuously smooths the raw material on the surface of the fermentation bed. At the same time, when the slide moves to the end and touches the L-shaped push rod, the pawl engages in the slot, and when the guide column enters the groove of the descending section, the lifting plate is pushed down, so that the floating block actively presses the raw material layer, which can effectively expel the air in the gaps between the raw materials, improve the compactness of the material, thereby enhancing the anaerobic or aerobic fermentation effect, and further improving the fermentation efficiency and product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a multi-strain fermentation device proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of a multi-strain fermentation device proposed in this invention; Figure 3 This is a schematic diagram of the tank lid structure of a multi-strain fermentation device proposed in this invention; Figure 4 This is a schematic diagram of the feed pipe structure of a multi-strain fermentation device proposed in this invention; Figure 5 This is a schematic diagram of the installation structure of the feed pipe and the spreading pipe of a multi-strain fermentation device proposed in this invention; Figure 6This is a schematic diagram of the floating block structure of a multi-strain fermentation device proposed in this invention; Figure 7 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 8 for Figure 6 Enlarged view of the structure at point B in the middle.

[0017] In the diagram: 1. Fermentation tank; 2. Tank lid; 3. Fermentation bed; 4. Feed pipe; 5. Hose; 6. Spreading pipe; 7. Horizontal frame; 8. Reciprocating screw; 9. Slide table; 10. Transmission gear; 11. Tension spring rod; 12. Portal frame; 13. Rotating shaft; 14. Inclined platform; 15. Protruding column; 16. Top rod; 17. Sliding sleeve; 18. Lifting plate; 19. Floating block; 20. Slot; 21. Thrust spring rod; 22. Limit sleeve; 23. Vertical plate; 24. L-shaped push rod; 25. Claw; 26. V-shaped guide frame; 261. Translation section groove; 262. Descending section groove; 27. Guide column; 28. End face gear ring; 29. ​​Mounting plate; 30. Stepper motor; 31. Transmission pulley; 32. Transmission belt. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] See attached document Figure 1 -Appendix Figure 8 A multi-strain fermentation device includes a fermenter 1 and a lid 2. A fermentation bed 3 is fixedly installed on the inner wall of the fermenter 1 near its bottom. The device also includes: Feed pipe 4 is rotatably installed through the center of the can cover 2. A sprinkling pipe 6 is installed at the bottom of the feed pipe 4. A flexible hose 5 is fixedly installed between the feed pipe 4 and the sprinkling pipe 6. The rotating mechanism is used to drive the feed pipe 4 and the dispensing pipe 6 to rotate as a whole; The oscillating mechanism and the rotating mechanism form a transmission cooperation, which is used to drive the spreading pipe 6 to move back and forth in the radial direction of the fermentation tank 1, so as to spread the fermentation raw materials evenly on the fermentation bed 3. The compaction mechanism is installed on the feed pipe 4 and is used to flatten and compact the fermentation raw materials on the fermentation bed 3.

[0021] In this embodiment, the rotating mechanism includes a mounting plate 29 fixedly installed on the top of the can lid 2. A stepper motor 30 is fixedly installed on the top of the mounting plate 29. A transmission pulley 31 is fixedly installed on both the output end of the stepper motor 30 and the outer surface of the feed pipe 4. A transmission belt 32 is sleeved between the outer surfaces of the two transmission pulleys 31.

[0022] During use, the multi-strain fermentation raw materials to be fermented are fed into the fermentation tank 1 through the feed pipe 4. At the same time as the raw materials are fed, the stepper motor 30 drives the transmission pulley 31 to rotate, so that the transmission pulley 31, together with the transmission belt 32, drives the feed pipe 4 and the spreading pipe 6 to rotate as a whole in the fermentation tank 1. This allows the spreading pipe 6 to spread the raw materials in a circumferential direction on the fermentation bed 3, avoiding the accumulation of raw materials in the same position, which would affect the fermentation effect. In this embodiment, the swing mechanism includes a crossbeam 7 fixedly installed on the outer surface of the feed pipe 4. A slide table 9 is slidably installed on the inner wall of the crossbeam 7. Tension spring rods 11 are fixedly installed on the lower surfaces of both ends of the slide table 9. A portal frame 12 is fixedly installed on the telescopic end of the tension spring rod 11. A rotating shaft 13 is fixedly installed on the outer surface of the sprinkling pipe 6. The rotating shaft 13 is rotatably installed on the outer surface of the portal frame 12. A transmission assembly is installed between the slide table 9 and the can lid 2. The transmission assembly includes a reciprocating screw 8 that is rotatably installed between the two ends of the crossbeam 7. The reciprocating screw 8 passes through the outer surface of the slide table 9 and is threadedly connected to it. A transmission gear 10 is fixedly installed on one end of the reciprocating screw 8. An end face gear ring 28 is fixedly installed on the top wall of the can lid 2. The transmission gear 10 meshes with the end face gear ring 28.

[0023] As the feed pipe 4 rotates, it drives the cross frame 7 to rotate as a whole, causing the transmission gear 10 to roll on the end face gear ring 28 that meshes with it. The transmission gear 10 drives the reciprocating screw 8 to rotate, and the reciprocating screw 8 drives the slide table 9, which is threadedly connected to it, to move back and forth along the axial direction. This allows the slide table 9 to drive the spreading pipe 6 to move horizontally while rotating, through the tension spring rod 11, the gantry frame 12 and the rotating shaft 13, so as to spread the raw materials evenly on the fermentation bed 3, thereby improving the inoculation consistency and the homogeneity of subsequent fermentation. In this embodiment, the compaction mechanism includes a sliding sleeve 17 vertically fixedly installed on the outer surface of the feed pipe 4. The sliding sleeve 17 has a "C"-shaped cross-section. A lifting plate 18 is slidably installed on the inner wall of the sliding sleeve 17. A floating block 19 is fixedly installed at the bottom end of the lifting plate 18. A pressing assembly is installed between the outer surface of the sliding sleeve 17 and the lifting plate 18. The pressing assembly includes two thrust spring rods 21 symmetrically fixedly installed on the outer surface of the sliding sleeve 17. A limiting sleeve 22 is fixedly installed at the telescopic end of the two thrust spring rods 21. A vertical plate 23 is slidably installed on the inner wall of the limiting sleeve 22. A directional... The sliding sleeve 17 is equipped with a pawl 25. The outer surface of the lifting plate 18 near the vertical plate 23 is evenly provided with multiple slots 20 that match the pawl 25. A trigger assembly is installed between the vertical plate 23 and the slide table 9. The trigger assembly includes an L-shaped push rod 24 fixedly installed at the top of the vertical plate 23. The end of the L-shaped push rod 24 intermittently abuts against the outer surface of the slide table 9. A guide assembly is installed between the sliding sleeve 17 and the vertical plate 23. The guide assembly includes a V-shaped guide frame 26 fixedly installed on the outer surface of the sliding sleeve 17. A guide post 27 is fixedly installed on the outer surface of the vertical plate 23. The guide post 27 is slidably installed on the inner wall of the V-shaped guide frame 26.

[0024] While the feed pipe 4 is rotating, it will also drive the sliding sleeve 17 to rotate, so that the sliding sleeve 17 drives the floating block 19 to move through the lifting plate 18, so that the floating block 19 can smooth the fermentation raw materials on the surface of the fermentation bed 3. When the end of the slide table 9 abuts against the L-shaped push rod 24, the slide table 9 will push the vertical plate 23 and the claw 25 towards the sliding sleeve 17 through the L-shaped push rod 24, so that the claw 25 is engaged in the slot 20. When the guide column 27 moves into the descending section slot 262, the guide column 27 will push the claw 25 downward through the vertical plate 23, so that the claw 25 pushes the lifting plate 18 downward through the slot 20, so that the floating block 19 can squeeze and compact the fermentation raw materials on the fermentation bed 3, expel the air in the gaps between the raw materials, and improve the fermentation effect.

[0025] During use, the floating block 19 always remains on the surface of the fermentation raw material. As the thickness of the raw material increases, the floating block 19 will drive the lifting plate 18 to move upward. By opening several slots 20 on the lifting plate 18, the claw 25 can be inserted into the slot 20 when the lifting plate 18 rises to any position.

[0026] In this embodiment, the internal through slot of the V-shaped guide 26 is composed of a translational section slot 261 and a descending section slot 262 that are interconnected.

[0027] In use, the guide post 27 can move horizontally within the translational section groove 261 so that the pawl 25 can be inserted into the slot 20. When the guide post 27 moves into the descending section groove 262, the inclined descending section groove 262 will drive the vertical plate 23 and the pawl 25 to move downward through the guide post 27.

[0028] In this embodiment, a ramp 14 is fixedly installed at the bottom of the cross frame 7, and a top rod 16 is fixedly installed at the top of the portal frame 12. The top of the top rod 16 abuts against the inclined surface of the ramp 14, and multiple protruding columns 15 are evenly fixedly installed on the inclined surface of the ramp 14.

[0029] As the portal frame 12 moves towards the feed pipe 4 via the self-drive gear 10, the distance between the discharge pipe 6 and the feed pipe 4 will decrease, making it easy for the hose 5 between them to bend excessively, affecting the discharge effect. To avoid this adverse effect, the inclined platform 14 and the push rod 16 are designed so that the push rod 16 will apply a downward thrust to the portal frame 12 as it moves on the inclined surface of the inclined platform 14, causing the discharge pipe 6 to gradually move away from the feed pipe 4, thus ensuring the unobstructed flow of the hose 5. Conversely, the discharge pipe 6 will move closer to the feed pipe 4 under the pulling force of the tension spring rod 11, preventing damage to the hose 5. As can be seen from the above description, the above embodiments of the present invention achieve the following technical effects: In use, the multi-strain fermentation raw materials to be fermented are put into the fermentation tank 1 through the feed pipe 4. At the same time as the raw materials are put in, the transmission pulley 31 is driven to rotate by the stepper motor 30, so that the transmission pulley 31 and the transmission belt 32 drive the feed pipe 4 and the spreading pipe 6 to rotate as a whole in the fermentation tank 1, so that the spreading pipe 6 can spread the raw materials in the circumferential direction on the fermentation bed 3, avoiding the accumulation of raw materials in the same position and affecting the fermentation effect; While the feed pipe 4 rotates, it will drive the cross frame 7 to rotate as a whole, causing the transmission gear 10 to roll on the end face gear ring 28 that meshes with it. The transmission gear 10 drives the reciprocating screw 8 to rotate, and the reciprocating screw 8 drives the slide table 9 that is threaded to it to move back and forth along the axial direction. Thus, the slide table 9 drives the spreading pipe 6 to move horizontally while rotating through the tension spring rod 11, the gantry frame 12 and the rotating shaft 13, so as to spread the raw materials evenly on the fermentation bed 3, improve the inoculation consistency and the homogeneity of subsequent fermentation. As the portal frame 12 moves towards the feed pipe 4 via the drive gear 10, the distance between the discharge pipe 6 and the feed pipe 4 will decrease, which may cause the hose 5 between them to bend excessively, affecting the discharge effect. To avoid this adverse effect, the inclined platform 14 and the push rod 16 are set up so that the push rod 16 will apply a downward pushing force to the portal frame 12 as it moves on the inclined surface of the inclined platform 14, causing the discharge pipe 6 to gradually move away from the feed pipe 4, thereby ensuring the unobstructed flow of the hose 5. Conversely, the discharge pipe 6 will move closer to the feed pipe 4 under the pulling force of the tension spring rod 11, preventing damage to the hose 5. While the feed pipe 4 is rotating, it will also drive the sliding sleeve 17 to rotate, so that the sliding sleeve 17 drives the floating block 19 to move through the lifting plate 18, so that the floating block 19 can smooth the fermentation raw materials on the surface of the fermentation bed 3. When the end of the slide table 9 abuts against the L-shaped push rod 24, the slide table 9 will push the vertical plate 23 and the claw 25 towards the sliding sleeve 17 through the L-shaped push rod 24, so that the claw 25 is engaged in the slot 20. When the guide column 27 moves into the descending section slot 262, the guide column 27 will push the claw 25 downward through the vertical plate 23, so that the claw 25 pushes the lifting plate 18 downward through the slot 20, so that the floating block 19 can squeeze and compact the fermentation raw materials on the fermentation bed 3, expel the air in the gaps between the raw materials, and improve the fermentation effect.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-strain fermentation device, comprising a fermenter (1) and a lid (2), wherein a fermentation bed (3) is fixedly installed on the inner wall of the fermenter (1) near its bottom, characterized in that, Also includes: Feed pipe (4), the feed pipe (4) is rotatably installed through the center of the can cover (2), the bottom end of the feed pipe (4) is equipped with a sprinkling pipe (6), and a hose (5) is fixedly installed between the feed pipe (4) and the sprinkling pipe (6). A rotating mechanism is used to drive the feed pipe (4) and the spreading pipe (6) to rotate as a whole; The swing mechanism and the rotation mechanism form a transmission cooperation to drive the spreading pipe (6) to move back and forth in the radial direction of the fermentation tank (1) and spread the fermentation raw materials evenly on the fermentation bed (3); The compaction mechanism is installed on the feed pipe (4) and is used to flatten and compact the fermentation raw materials on the fermentation bed (3).

2. The multi-strain fermentation equipment according to claim 1, characterized in that, The rotating mechanism includes a mounting plate (29) fixedly installed on the top of the can lid (2). A stepper motor (30) is fixedly installed on the top of the mounting plate (29). A transmission pulley (31) is fixedly installed on both the output end of the stepper motor (30) and the outer surface of the feed pipe (4). A transmission belt (32) is sleeved between the outer surfaces of the two transmission pulleys (31).

3. The multi-strain fermentation equipment according to claim 2, characterized in that, The swing mechanism includes a crossbeam (7) fixedly installed on the outer surface of the feed pipe (4), a slide table (9) slidably installed on the inner wall of the crossbeam (7), tension spring rods (11) fixedly installed on the lower surfaces of both ends of the slide table (9), a portal frame (12) fixedly installed on the telescopic end of the tension spring rod (11), a rotating shaft (13) fixedly installed on the outer surface of the sprinkling pipe (6), the rotating shaft (13) rotatably installed on the outer surface of the portal frame (12), and a transmission assembly installed between the slide table (9) and the can cover (2).

4. The multi-strain fermentation equipment according to claim 3, characterized in that, The transmission assembly includes a reciprocating screw (8) that is rotatably mounted between the two ends of the crossbar (7). The reciprocating screw (8) passes through the outer surface of the slide (9) and is threadedly connected to it. A transmission gear (10) is fixedly mounted on one end of the reciprocating screw (8). An end face gear ring (28) is fixedly mounted on the top wall of the can cover (2). The transmission gear (10) meshes with the end face gear ring (28).

5. The multi-strain fermentation equipment according to claim 4, characterized in that, The compaction mechanism includes a sliding sleeve (17) that is vertically fixed on the outer surface of the feed pipe (4). The cross-section of the sliding sleeve (17) is "C" shaped. A lifting plate (18) is slidably installed on the inner wall of the sliding sleeve (17). A floating block (19) is fixedly installed at the bottom end of the lifting plate (18). An extrusion assembly is installed between the outer surface of the sliding sleeve (17) and the lifting plate (18).

6. The multi-strain fermentation equipment according to claim 5, characterized in that, The extrusion assembly includes two thrust spring rods (21) symmetrically fixedly installed on the outer surface of the sliding sleeve (17). The telescopic ends of the two thrust spring rods (21) are fixedly installed with limit sleeves (22). A vertical plate (23) is slidably installed on the inner wall of the limit sleeve (22). A claw (25) facing the sliding sleeve (17) is fixedly installed at the bottom end of the vertical plate (23). The outer surface of the lifting plate (18) near the vertical plate (23) is evenly provided with multiple slots (20) that match the claws (25).

7. The multi-strain fermentation equipment according to claim 6, characterized in that, A triggering assembly is installed between the vertical plate (23) and the slide (9). The triggering assembly includes an L-shaped push rod (24) fixedly installed at the top of the vertical plate (23). The end of the L-shaped push rod (24) intermittently abuts against the outer surface of the slide (9).

8. The multi-strain fermentation equipment according to claim 7, characterized in that, A guide assembly is installed between the sliding sleeve (17) and the vertical plate (23). The guide assembly includes a V-shaped guide frame (26) fixedly installed on the outer surface of the sliding sleeve (17). A guide post (27) is fixedly installed on the outer surface of the vertical plate (23). The guide post (27) is slidably installed on the inner wall of the V-shaped guide frame (26). The internal through groove of the V-shaped guide frame (26) is composed of a translation section groove (261) and a descent section groove (262) that are interconnected.

9. The multi-strain fermentation equipment according to claim 3, characterized in that, The bottom end of the cross frame (7) is fixedly installed with a ramp (14), and the top end of the portal frame (12) is fixedly installed with a top rod (16). The top end of the top rod (16) abuts against the inclined surface of the ramp (14), and multiple protruding columns (15) are evenly fixedly installed on the inclined surface of the ramp (14).

10. A multi-strain fermentation method, characterized in that, The multi-strain fermentation equipment according to any one of claims 1-9 includes the following steps: S1: The multi-strain fermentation raw materials to be fermented are fed into the fermentation tank (1) through the feed pipe (4). At the same time as the raw materials are fed, the transmission pulley (31) is driven to rotate by the stepper motor (30). The transmission pulley (31) and the transmission belt (32) drive the feed pipe (4) and the spreading pipe (6) to rotate as a whole in the fermentation tank (1), so that the spreading pipe (6) spreads the raw materials in the circumferential direction on the fermentation bed (3). S2: While the feed pipe (4) rotates, it will drive the cross frame (7) to rotate as a whole, so that the transmission gear (10) rolls on the end face gear ring (28) that meshes with it, so that the transmission gear (10) drives the reciprocating screw (8) to rotate, so that the reciprocating screw (8) drives the slide (9) connected to it to move back and forth along the axial direction, so that the slide (9) drives the spreading pipe (6) to move horizontally while rotating through the tension spring rod (11), the portal frame (12) and the rotating shaft (13), so that the raw materials are evenly spread on the fermentation bed (3); S3: While the feed pipe (4) is rotating, it will also drive the sliding sleeve (17) to rotate, so that the sliding sleeve (17) drives the floating block (19) to move through the lifting plate (18), so that the floating block (19) can smooth the fermentation raw materials on the surface of the fermentation bed (3).

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