A multi-layer fermentation bed for solid-state stratified fermentation

Abstract

This invention relates to the field of fermentation bed technology and discloses a multi-layer fermentation bed for solid-state stratified fermentation. It solves the problem that in traditional multi-layer fermentation beds with a flap mechanism, the lower layers (excluding the top layer) cannot quickly and evenly spread the fermentation material after receiving it. The invention includes an outer shell, with a control switch fixedly installed in the center of the outer side. Four fermentation beds are evenly arranged inside the shell, and connecting seats are fixedly installed at the center of both ends of the four fermentation beds. The end of the connecting seat away from the fermentation bed is fixedly connected to the inner wall of the outer shell. An adjusting and leveling component is provided inside the shell. This invention enables the lower layers (excluding the top layer) to quickly and evenly spread the fermentation material after receiving it, ensuring normal fermentation operation.

Description

Technical Field

[0001] This invention belongs to the field of fermentation bed technology, specifically a multi-layer fermentation bed for solid-state stratified fermentation. Background Technology

[0002] Fermentation beds are an ecological farming method based on modern microbial fermentation technology. Their core lies in utilizing a highly active and beneficial microbial community to continuously and stably convert animal waste (such as pigs, cattle, and chickens) into useful substances and energy, thereby achieving pollution-free and zero-emission farming. This technology comprehensively applies the principles of microbiology, ecology, and fermentation engineering, constructing a "bed" composed of specific bedding materials and specialized microbial strains (such as EM bacteria) to provide a suitable environment for microbial decomposition activities. Fermentation beds come in various types, with multi-layer fermentation beds being one example. Multi-layer fermentation beds are required in the process of solid-state layered fermentation.

[0003] Multi-layer fermentation beds are modern biological treatment systems that combine traditional fermentation bed technology with a three-dimensional, multi-layered structural design. Through a vertical spatial layout, multiple fermentation units are stacked to efficiently treat agricultural or livestock organic waste, while simultaneously achieving the goals of saving land, improving treatment efficiency, and promoting resource recycling. Its core lies in utilizing the aerobic fermentation principle of microorganisms to rapidly decompose, transform, and render harmless organic matter in an artificially controlled multi-layered environment. These systems include tilting-plate and conveyor belt types. Tilting-plate multi-layer fermentation beds have multiple 360° rotating tilting doors at the bottom of each layer. After fermentation in one layer, a computer-controlled cylinder drives the tilting doors to open, allowing the material to fall to the next layer under gravity. Conveyor belt multi-layer fermentation beds have independent conveyors for each layer, with adjacent layers conveying in opposite directions and staggered positions, allowing material from the upper layer to naturally fall to the lower layer at the end of the conveyor.

[0004] In the process of using a flip-type multi-layer fermentation bed for solid-state stratified fermentation, the lower layers of the fermentation bed, except for the top layer, cannot quickly and evenly spread the fermentation material after receiving it, which affects the normal fermentation operation and reduces the working efficiency of the multi-layer fermentation bed. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, this invention provides a multi-layer fermentation bed for solid-state stratified fermentation. It effectively solves the problem that in the process of using a flip-type multi-layer fermentation bed for solid-state stratified fermentation, the lower layers of the fermentation bed (excluding the top layer) cannot quickly and evenly spread the fermentation material after receiving the material, which affects the normal fermentation operation and reduces the working efficiency of the multi-layer fermentation bed.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer fermentation bed for solid-state stratified fermentation, comprising an outer shell, a control switch fixedly installed in the middle of the outer side of the outer shell, an open structure at the bottom of the outer shell, a feed inlet penetrating through the middle of the top of the outer shell, four fermentation beds evenly arranged inside the outer shell, connecting seats fixedly installed in the middle of the front and rear ends of the four fermentation beds, and the end of the connecting seat away from the fermentation bed is fixedly connected to the inner wall of the outer shell, a control drive component fixedly installed on one side of the outer shell, and the flaps at the bottom of the four fermentation beds are all connected to the control drive component, and an adjustment and leveling component is provided inside the outer shell.

[0007] Preferably, the adjusting and leveling component includes three evenly arranged strip frames, which are respectively located between the four fermentation beds. The top of the strip frame has an arc-shaped surface structure, and the bottom of the strip frame has an open structure. Connecting blocks are symmetrically fixedly installed on the front and rear sides of the strip frame. An electric telescopic rod is fixedly installed on the top of the connecting block. A fixed seat is fixedly installed on the outer side of the electric telescopic rod, and the fixed seat is fixedly installed on the inner wall of the outer shell. A reciprocating screw is rotatably installed inside the strip frame. A movable threaded sleeve is threaded on the outer side of the reciprocating screw. A connecting shaft seat is fixedly installed in the middle of the bottom end of the movable threaded sleeve. A rotating shaft is rotatably installed inside the bottom end of the connecting shaft seat, and the bottom end of the rotating shaft extends to the bottom of the strip frame. A strip plate is fixedly installed at the bottom of the rotating shaft, and movable rods are evenly fixedly installed at the bottom of the strip plate.

[0008] Preferably, a positioning frame is fixedly installed at the bottom of the movable screw sleeve, and the positioning frame has a conical structure, with the rotating shaft rotatably installed inside the positioning frame.

[0009] Preferably, a movable gear is fixedly installed on the outer side of the top end of the rotating shaft, and the movable gear is located inside the positioning frame. A positioning rack is meshed on the outer side of the movable gear, and both ends of the positioning rack are fixedly connected to the inner wall of the strip frame.

[0010] Preferably, a first positioning slider is fixedly installed on the top of the movable screw sleeve, a first positioning groove is provided at the top of the inner side of the strip frame, and the first positioning slider is slidably installed inside the first positioning groove.

[0011] Preferably, a transmission housing is provided on the outer side of one end of the strip frame, and one end of the reciprocating screw movably passes through and extends into the interior of the transmission housing. The end of the reciprocating screw extending outside the strip frame is rotatably connected to the interior of the transmission housing wall. A transmission bevel gear is fixedly installed inside the transmission housing at the end of the reciprocating screw. A drive bevel gear is meshed with the outer side of the transmission bevel gear. A rotating sleeve is fixedly installed inside the drive bevel gear and rotatably installed inside the transmission housing. The top end of the rotating sleeve extends to the top of the transmission housing, and the bottom end of the rotating sleeve extends to the bottom of the transmission housing.

[0012] Preferably, an adjusting motor is fixedly installed on the top of the outer casing, and an adjusting shaft is rotatably installed on the inner top of the outer casing. The output shaft of the adjusting motor movably passes through the top of the outer casing and is fixedly connected to the top of the adjusting shaft. A support shaft seat is rotatably installed on the outer side of the bottom end of the adjusting shaft, and the support shaft seat is fixedly installed on the inner wall of the outer casing. Three positioning seats are rotatably installed on the outer side of the adjusting shaft, and all three positioning seats are fixedly installed on the inner wall of the outer casing. A rotating sleeve is installed on the outer side of the adjusting shaft, and sliding blocks are symmetrically fixedly installed on the inner wall of the rotating sleeve. Sliding grooves are symmetrically opened on the outer side of the adjusting shaft, and the sliding blocks are slidably installed inside the sliding grooves.

[0013] Preferably, a second positioning slider is fixedly installed on the side of the transmission housing away from the strip frame, and three second positioning grooves are provided on the inner wall of the housing, with the second positioning slider slidably installed inside the second positioning grooves.

[0014] Preferably, support frames are fixedly installed on both sides of the bottom end of the outer shell, and both support frames are L-shaped structures, with mounting holes symmetrically opened through the bottom end of both support frames.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1) During operation, through the interaction of the outer shell, control switch, four fermentation beds, connecting seat, control drive component and adjustment and leveling component, the flip-plate type multi-layer fermentation bed used for solid-state layered fermentation can quickly and evenly spread the fermentation material after receiving the material, except for the top layer, ensuring normal fermentation operation and thus improving the working efficiency of the multi-layer fermentation bed.

[0017] 2) During operation, the positioning frame ensures better stability of the rotating shaft during rotation, thus facilitating stable transmission operation;

[0018] 3) During operation, the interaction between the second positioning slider and the second positioning groove enables the transmission housing to achieve better stability during movement, thereby ensuring that it can stably perform adjustment and transmission operations.

[0019] 4) During operation, the interaction between the set support frame and the mounting holes facilitates the fixed installation of the outer shell, ensuring better stability of the outer shell and thus ensuring that the entire fermentation bed can work stably. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of a multi-layer fermentation bed for solid-state stratified fermentation according to the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the outer shell of the present invention;

[0024] Figure 3 This is a schematic diagram of the adjusting and leveling component structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the bar frame of the present invention;

[0026] Figure 5 This is a schematic diagram of the internal structure of the transmission housing of the present invention;

[0027] Figure 6 This is a schematic diagram of the internal structure of the rotating sleeve of the present invention.

[0028] In the diagram: 1. Outer shell; 2. Control switch; 3. Feed inlet; 4. Fermentation bed; 5. Connecting seat; 6. Control drive assembly; 7. Adjustment and leveling assembly; 8. Strip frame; 9. Connecting block; 10. Electric telescopic rod; 11. Fixed seat; 12. Reciprocating screw; 13. Movable threaded sleeve; 14. Connecting shaft seat; 15. Rotating shaft; 16. Strip plate; 17. Movable rod; 18. Positioning frame; 19. Movable gear; 20. Positioning rack; 21. First positioning slider; 22. First positioning groove; 23. Transmission shell; 24. Transmission bevel gear; 25. Drive bevel gear; 26. Rotating sleeve; 27. Adjusting motor; 28. Adjusting shaft; 29. ​​Support shaft seat; 30. Positioning seat; 31. Sliding block; 32. Sliding groove; 33. Second positioning slider; 34. Second positioning groove; 35. Support frame; 36. Mounting hole. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] Example 1, by Figure 1 and Figure 2The present invention includes an outer shell 1. Support frames 35 are fixedly installed on both sides of the bottom end of the outer shell 1. Both support frames 35 are L-shaped structures. The bottom end of both support frames 35 is symmetrically provided with mounting holes 36. During use, the interaction between the support frames 35 and the mounting holes 36 facilitates the fixed installation of the outer shell 1, ensuring that the outer shell 1 can achieve better stability, thereby ensuring that the entire fermentation bed can work stably. A control switch 2 is fixedly installed in the middle of the outer side of the outer shell 1 for easy operation during use. The bottom end of the outer shell 1 is an open structure for easy material discharge during use. The top end of the outer shell 1 is provided with a feed inlet 3 for easy material feeding during use.

[0031] The shell 1 contains four fermentation beds 4 evenly arranged inside. Connecting seats 5 are fixedly installed at the middle of both ends of the four fermentation beds 4, with the end of the connecting seat 5 furthest from the fermentation bed 4 fixedly connected to the inner wall of the shell 1. A control drive assembly 6 is fixedly installed on one side of the shell 1, and the flaps at the bottom of the four fermentation beds 4 are connected to the control drive assembly 6. An adjusting and leveling assembly 7 is installed inside the shell 1. During use, the interaction of the shell 1, control switch 2, four fermentation beds 4, connecting seats 5, control drive assembly 6, and adjusting and leveling assembly 7 ensures that, during solid-state layered fermentation, the lower layers of the fermentation bed (excluding the top layer) can quickly and evenly spread the fermentation material after receiving it, ensuring normal fermentation operation and thus improving the working efficiency of the multi-layer fermentation bed.

[0032] Example 2, based on Example 1, is... Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The adjusting and leveling component 7 includes three evenly arranged strip frames 8, which are located between four fermentation beds 4. The top of each strip frame 8 has an arc-shaped surface and the bottom of each strip frame 8 has an open structure. Connecting blocks 9 are symmetrically fixedly installed on both the front and rear sides of each strip frame 8. An electric telescopic rod 10 is fixedly installed on the top of each connecting block 9. A fixing seat 11 is fixedly installed on the outside of the electric telescopic rod 10 and is fixedly installed on the inner wall of the outer shell 1. During use, the interaction between the fixing seat 11, the electric telescopic rod 10 and the connecting blocks 9 can drive the strip frame 8 to move stably, thereby ensuring that the structure can work stably.

[0033] A reciprocating screw 12 is rotatably mounted inside the strip frame 8. A transmission housing 23 is provided on the outer side of one end of the strip frame 8, and one end of the reciprocating screw 12 movably passes through and extends into the interior of the transmission housing 23. A second positioning slider 33 is fixedly mounted on the side of the transmission housing 23 away from the strip frame 8. Three second positioning grooves 34 are provided on the inner wall of the outer housing 1, and the second positioning sliders 33 are slidably mounted inside the second positioning grooves 34. During use, the interaction between the second positioning sliders 33 and the second positioning grooves 34 makes it easier for the transmission housing 23 to achieve better stability when moving. To ensure stable adjustment and transmission operation, the reciprocating screw 12 extends to the outside of the strip frame 8 and is rotatably connected to the inside of the transmission housing 23. A transmission bevel gear 24 is fixedly installed inside the transmission housing 23 and at the end of the reciprocating screw 12. A drive bevel gear 25 is meshed with the outside of the transmission bevel gear 24. A rotating sleeve 26 is fixedly installed inside the drive bevel gear 25 and rotatably installed inside the transmission housing 23. The top end of the rotating sleeve 26 extends to the top of the transmission housing 23 and the bottom end of the rotating sleeve 26 extends to the bottom of the transmission housing 23.

[0034] An adjusting motor 27 is fixedly installed on the top of the outer casing 1. An adjusting shaft 28 is rotatably installed on the top of the inner part of the outer casing 1. The output shaft of the adjusting motor 27 passes through the top of the outer casing 1 and is fixedly connected to the top of the adjusting shaft 28. A support shaft seat 29 is rotatably installed on the outer side of the bottom end of the adjusting shaft 28, and the support shaft seat 29 is fixedly installed on the inner wall of the outer casing 1. Three positioning seats 30 are rotatably installed on the outer side of the adjusting shaft 28, and all three positioning seats 30 are fixedly installed on the inner wall of the outer casing 1. During use, the interaction of the support shaft seat 29 and the three positioning seats 30 allows the adjusting shaft 28 to adjust its position. The adjusting shaft 28 achieves better stability, thus facilitating stable adjustment and transmission operations. The rotating sleeve 26 is installed on the outside of the adjusting shaft 28, and sliding blocks 31 are symmetrically fixed on the inner wall of the rotating sleeve 26. The outer side of the adjusting shaft 28 is symmetrically provided with sliding grooves 32, and the sliding blocks 31 are slidably installed inside the sliding grooves 32. During use, the sliding blocks 31 and sliding grooves 32 ensure that the rotating sleeve 26 and the adjusting shaft 28 maintain a sliding connection while also ensuring a stable transmission effect between them, thereby ensuring that the structure can work stably.

[0035] A movable threaded sleeve 13 is installed on the outer thread of the reciprocating screw 12. A first positioning slider 21 is fixedly installed on the top of the movable threaded sleeve 13. A first positioning groove 22 is opened at the top of the inner part of the strip frame 8, and the first positioning slider 21 is slidably installed inside the first positioning groove 22. During use, the interaction between the first positioning slider 21 and the first positioning groove 22 makes it easier for the movable threaded sleeve 13 to achieve better stability when moving, thereby facilitating stable adjustment and transmission operations. A connecting shaft seat 14 is fixedly installed in the middle of the bottom end of the movable threaded sleeve 13. A rotating shaft 15 is rotatably installed inside the bottom end of the connecting shaft seat 14, and the bottom end of the rotating shaft 15 extends to the bottom of the strip frame 8. A positioning frame 18 is fixedly installed at the bottom of the movable screw sleeve 13. The positioning frame 18 has a conical structure. The rotating shaft 15 is rotatably installed inside the positioning frame 18. During use, the positioning frame 18 ensures that the rotating shaft 15 can achieve better stability when rotating, thus facilitating stable transmission operation. A movable gear 19 is fixedly installed on the outer side of the top of the rotating shaft 15. The movable gear 19 is located inside the positioning frame 18. A positioning rack 20 is meshed on the outer side of the movable gear 19. Both ends of the positioning rack 20 are fixedly connected to the inner wall of the strip frame 8. A strip plate 16 is fixedly installed at the bottom of the rotating shaft 15. Movable rods 17 are evenly fixedly installed at the bottom of the strip plate 16.

[0036] Working principle: During operation, the support frame 35 is first fixedly installed using mounting bolts that match the diameter of the mounting holes 36, thereby achieving the fixed installation of the entire fermentation bed. Then, during the fermentation process, when the fermentation material inside the three fermentation bed bodies 4 at the lower level is evenly spread out, the electric telescopic rod 10 is activated to push the strip frame 8 downward. The strip frame 8 drives the reciprocating screw 12 inside it to move downward. The reciprocating screw 12 drives the transmission housing 23 to move downward. The transmission housing 23 drives the second positioning slider 33 to slide inside the second positioning groove 34. The movement ensures better stability of the transmission housing 23 during movement. At the same time, the transmission housing 23 drives the rotating sleeve 26 to slide downward on the outside of the adjusting shaft 28. Meanwhile, the reciprocating screw 12 drives the movable screw sleeve 13 to move downward. The movable screw sleeve 13 drives the rotating shaft 15 to move downward through the connecting shaft seat 14 and the positioning frame 18. The rotating shaft 15 drives the strip plate 16 to move downward. The strip plate 16 drives the movable rod 17 to move downward, so that the movable rod 17 moves into the interior of the fermentation bed 4. Then, the electric telescopic rod 10 is stopped and the adjusting motor 27 is started.

[0037] The adjusting motor 27 drives the adjusting shaft 28 to rotate. The adjusting shaft 28, through the interaction of the sliding groove 32 and the sliding block 31, drives the rotating sleeve 26 to rotate. The rotating sleeve 26 drives the driving bevel gear 25 to rotate, which in turn drives the transmission bevel gear 24 to rotate. The transmission bevel gear 24 drives the reciprocating screw 12 to rotate, which in turn moves the movable threaded sleeve 13. The movable threaded sleeve 13 causes the first positioning slider 21 to slide inside the first positioning groove 22, ensuring better stability during movement. Simultaneously, the movable threaded sleeve 13, through the interaction of the connecting shaft seat 14 and the positioning frame 18, drives the rotating shaft 15 to move. The rotating shaft 15 then moves the strip plate 16, which in turn moves the movable rod 17 laterally. Simultaneously, the rotating shaft 15 drives the movable gear 19 to move outside the positioning rack 20, causing the movable gear 19 to rotate during movement. The movable gear 19 drives the rotating shaft 15 to rotate, which in turn drives the strip plate 16 to rotate. The strip plate 16 then drives the movable rod 17 to rotate. Through the rotational motion of the strip plate 16 and the movable rod 17, the fermentation material inside the three fermentation beds 4 below is raked back and forth, ensuring that the fermentation material is evenly spread inside the fermentation bed 4. This allows the flip-plate type multi-layer fermentation bed, except for the top layer, to quickly and evenly spread the fermentation material after receiving it during use, ensuring normal fermentation operation and thus improving the working efficiency of the multi-layer fermentation bed.

Claims

1. A multi-layer fermentation bed for solid-state stratified fermentation, comprising a shell (1), characterized in that: A control switch (2) is fixedly installed on the middle of the outer side of the outer shell (1). The bottom of the outer shell (1) is an open structure. A feed inlet (3) is opened through the middle of the top of the outer shell (1). Four fermentation beds (4) are evenly arranged inside the outer shell (1). A connecting seat (5) is fixedly installed at the middle of the front and rear ends of the four fermentation beds (4). The end of the connecting seat (5) away from the fermentation bed (4) is fixedly connected to the inner wall of the outer shell (1). A control drive assembly (6) is fixedly installed on one side of the outer shell (1). The flaps at the bottom of the four fermentation beds (4) are connected to the control drive assembly (6). An adjustment and leveling assembly (7) is provided inside the outer shell (1).

2. A multi-layer fermentation bed for solid-state stratified fermentation according to claim 1, characterized in that: The adjusting and leveling component (7) includes three evenly arranged strip frames (8), which are located between the four fermentation beds (4). The top of each strip frame (8) is an arc-shaped structure, and the bottom of each strip frame (8) is an open structure. Connecting blocks (9) are symmetrically fixedly installed on both the front and rear sides of each strip frame (8). An electric telescopic rod (10) is fixedly installed on the top of each connecting block (9). A fixing seat (11) is fixedly installed on the outside of the electric telescopic rod (10), and the fixing seat (11) is fixedly installed inside the outer shell (1). On the wall, a reciprocating screw (12) is rotatably installed inside the strip frame (8). A movable threaded sleeve (13) is installed on the outer thread of the reciprocating screw (12). A connecting shaft seat (14) is fixedly installed at the middle of the bottom end of the movable threaded sleeve (13). A rotating shaft (15) is rotatably installed inside the bottom end of the connecting shaft seat (14). The bottom end of the rotating shaft (15) extends to the bottom of the strip frame (8). A strip plate (16) is fixedly installed at the bottom of the rotating shaft (15). Movable rods (17) are evenly fixedly installed at the bottom of the strip plate (16).

3. A multi-layer fermentation bed for solid-state stratified fermentation according to claim 2, characterized in that: The bottom of the movable screw sleeve (13) is fixedly installed with a positioning frame (18), and the positioning frame (18) is a conical structure. The rotating shaft (15) is rotatably installed inside the positioning frame (18).

4. A multi-layer fermentation bed for solid-state stratified fermentation according to claim 3, characterized in that: A movable gear (19) is fixedly installed on the outer side of the top of the rotating shaft (15), and the movable gear (19) is located inside the positioning frame (18). A positioning rack (20) is meshed on the outer side of the movable gear (19), and both ends of the positioning rack (20) are fixedly connected to the inner wall of the strip frame (8).

5. A multi-layer fermentation bed for solid-state stratified fermentation according to claim 2, characterized in that: The top of the movable screw sleeve (13) is fixedly installed with a first positioning slider (21), and the top of the inner end of the strip frame (8) is provided with a first positioning groove (22), and the first positioning slider (21) is slidably installed inside the first positioning groove (22).

6. A multi-layer fermentation bed for solid-state stratified fermentation according to claim 2, characterized in that: A transmission housing (23) is provided on the outer side of one end of the strip frame (8), and one end of the reciprocating screw (12) extends movably through and into the interior of the transmission housing (23). The end of the reciprocating screw (12) extending outside the strip frame (8) is rotatably connected to the interior of the housing wall of the transmission housing (23). A transmission bevel gear (24) is fixedly installed inside the transmission housing (23) and at the end of the reciprocating screw (12). A drive bevel gear (25) is meshed on the outer side of the transmission bevel gear (24). A rotating sleeve (26) is fixedly installed through the interior of the drive bevel gear (25), and the rotating sleeve (26) is rotatably installed inside the transmission housing (23). The top end of the rotating sleeve (26) extends to the top of the transmission housing (23), and the bottom end of the rotating sleeve (26) extends to the bottom of the transmission housing (23).

7. A multi-layer fermentation bed for solid-state stratified fermentation according to claim 6, characterized in that: An adjusting motor (27) is fixedly installed on the top of the outer shell (1). An adjusting shaft (28) is rotatably installed on the top of the inner part of the outer shell (1). The output shaft of the adjusting motor (27) passes through the top of the outer shell (1) and is fixedly connected to the top of the adjusting shaft (28). A support shaft seat (29) is rotatably installed on the outer side of the bottom end of the adjusting shaft (28). The support shaft seat (29) is fixedly installed on the inner wall of the outer shell (1). Three positioning seats (30) are rotatably installed on the outer side of the adjusting shaft (28). All three positioning seats (30) are fixedly installed on the inner wall of the outer shell (1). A rotating sleeve (26) is installed on the outer side of the adjusting shaft (28). Sliding blocks (31) are symmetrically fixedly installed on the inner wall of the rotating sleeve (26). Sliding grooves (32) are symmetrically opened on the outer side of the adjusting shaft (28). The sliding blocks (31) are slidably installed inside the sliding grooves (32).

8. A multi-layer fermentation bed for solid-state stratified fermentation according to claim 6, characterized in that: The transmission housing (23) is fixedly installed on the side away from the strip frame (8) with a second positioning slider (33). Three second positioning grooves (34) are opened on the inner wall of the housing (1), and the second positioning slider (33) is slidably installed inside the second positioning grooves (34).

9. A multi-layer fermentation bed for solid-state stratified fermentation according to claim 1, characterized in that: Both sides of the bottom end of the outer shell (1) are fixedly installed with support frames (35), and both support frames (35) are L-shaped structures. The bottom ends of both support frames (35) are symmetrically provided with mounting holes (36).

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