A microbial fermentation method and device for improving the bioavailability of meal

Abstract

The invention discloses a microbial fermentation method and device for improving the bioavailability of meal. The device comprises a fermentation tank shell, a discharging shaft is rotatably arranged in the fermentation tank shell, a spiral blade for discharging and conveying is arranged on the discharging shaft, and a mixing unit is also included. The mixing unit comprises a mixing cylinder and a feeding pipe body. The feeding pipe body is arranged at the top of the fermentation tank shell, and a mixing cylinder is rotatably arranged on one side of the feeding pipe body in the fermentation tank shell. The end of the discharging shaft is connected with the mixing cylinder to drive the mixing cylinder to mix the fermentation raw materials and bacterial liquid; the raw materials are conveyed into the mixing cylinder through the feeding pipe body, the discharging shaft is driven to discharge the materials from the fermentation tank shell through the spiral blade, and the discharging shaft drives the mixing cylinder to rotate, so that the materials in the mixing cylinder are mixed more evenly, thereby improving the fermentation efficiency of the materials.

Description

Technical Field

[0001] The invention relates to the technical field of fermentation, in particular to a microbial fermentation method and device for improving the bioavailability of meal. Background Art

[0002] As is known, microbial fermented feed refers to the process of using plant-based agricultural and sideline products as the main raw materials under artificial control, and decomposing or converting feed materials rich in macromolecular substances into high-quality feed rich in organic acids, probiotics, good palatability and rich nutrition through the metabolism and colony reproduction of microorganisms. The main raw materials for meal fermentation are soybean meal, cotton meal, rapeseed meal, apple pomace, potato pomace, crop straw, etc., and the commonly used microorganisms are beneficial bacteria such as lactic acid bacteria, yeast, bacillus, Clostridium butyricum, etc. When the meal materials are fermented by microorganisms, it is necessary to inoculate the bacterial solution, and then mix the fermentation raw materials with the bacterial solution. The more uniform the mixing of the fermentation raw materials and the bacterial solution, the higher the utilization rate of the fermentation raw materials and the bacterial solution.

[0003] For example, a method for continuous batch fermentation and feeding of cake and meal feed and a fermentation and feeding device thereof, which is disclosed with announcement number CN112273542A and announcement date January 29, 2021, comprises the following steps: (1) mixing cake and meal feed raw materials evenly and adding water for standby; (2) dividing a fermentation tank into several layers, the number of layers of which is not less than the number of days for fermentation of cake and meal feed; (3) then loading the mixed fermentation raw materials into the fermentation tank, and the added amount at least fills the bottom layer of the fermentation tank; (4) adding fermentation raw materials of one layer of the fermentation tank every day; (5) when the fermentation raw materials are added to the top layer of the fermentation tank, the cake and meal feed of the bottom layer is fermented to maturity; (6) discharging the materials through the discharging device under the fermentation tank for feeding, and adding new fermentation raw materials into the fermentation tank through the feeding device after the feeding is finished or while feeding; (7) repeating step (6) to achieve continuous batch fermentation and maturation of cake and meal feed and continuous feeding. The invention can effectively reduce the loss of beneficial bacteria and nutrients and effectively improve the utilization rate of soybean meal.

[0004] The disadvantage of the prior art is that after the materials (i.e., fermentation raw materials and bacterial liquid) are transported to the fermentation tank, the fermentation efficiency of the materials is slow due to uneven mixing of the materials, and some of the materials are not completely fermented, thereby causing waste of the raw materials. Summary of the invention

[0005] The purpose of the present invention is to provide a microbial fermentation method and device for improving the bioavailability of meal, so as to solve the technical problems in the related art.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a microbial fermentation device for improving the bioavailability of meal, comprising a fermentation tank shell, a discharging shaft rotatably arranged in the fermentation tank shell, and a spiral blade for discharging and conveying is arranged on the discharging shaft, and further comprising:

[0007] The mixing unit comprises a mixing cylinder and a feeding tube body. The feeding tube body is arranged at the top of the fermentation tank shell. A mixing cylinder is rotatably arranged on one side of the feeding tube body in the fermentation tank shell. The end of the discharge shaft is connected to the mixing cylinder to drive the mixing cylinder to mix the fermentation raw materials and the bacterial liquid.

[0008] As mentioned above, a feed port is provided on the mixing cylinder, and an arc surface groove is provided on the mixing cylinder at the feed slot position, an arc panel is slidably installed in the arc surface groove, and the arc panel and the feed port position cooperate with each other to realize the opening and closing of the feed port by the arc panel.

[0009] As mentioned above, the end of the discharging shaft close to the mixing cylinder is connected to an inner ring gear, a driven gear is installed on the side of the mixing cylinder, a positioning plate is installed on the top of the fermentation tank shell, a transmission gear is rotatably installed on the positioning plate, and the inner ring gear and the driven gear are meshed with the transmission gear.

[0010] As mentioned above, a groove is provided at the top of the fermentation tank shell, and the groove is located on the side of the mixing cylinder close to the inner ring gear. A locking rod is slidably installed in the groove, and the top of the locking rod and the inner wall of the groove are connected by a first elastic member, and the bottom end of the locking rod is a pointed structure.

[0011] As mentioned above, a driving member is installed on the side wall of the fermentation tank shell.

[0012] As mentioned above, the arc plate is connected with a driven rod, which is slidably installed in the arc groove and passes through the side wall of the mixing cylinder close to one end of the inner ring gear. The arc plate and the inner wall of the arc groove are connected by a plurality of uniformly arranged second elastic members.

[0013] As mentioned above, the portion of the driven rod that passes through the mixing cylinder abuts against the locking rod.

[0014] As mentioned above, a stirring shaft is installed at the end of the discharge shaft and the inner ring gear. The stirring shaft passes through the mixing cylinder and the driven gear and is rotatably connected to the side wall of the mixing cylinder away from the inner ring gear. A plurality of stirring blades are evenly arranged on the outer wall of the stirring shaft along its axial direction.

[0015] As mentioned above, an intermittent feeding unit is arranged in the feeding tube body, and the intermittent feeding unit is used for intermittent feeding to the mixing cylinder.

[0016] The present invention also provides a microbial fermentation method for improving the bioavailability of meal, which is based on the above-mentioned microbial fermentation device for improving the bioavailability of meal. The microbial fermentation method for improving the bioavailability of meal comprises the following steps:

[0017] 1. Put the preserved bacteria into the culture medium for cultivation, expand the culture step by step to obtain the culture, make the bacteria gradually adapt to the culture environment, activate the bacteria, and obtain the bacterial solution;

[0018] 2. The bacterial liquid and the fermentation raw materials are transported to the mixing cylinder and the fermentation tank shell through the feed pipe body, so that the bacterial liquid and the fermentation raw materials are mixed and inoculated, and the bacterial liquid and the fermentation raw materials are automatically distributed and fermented in the fermentation tank shell to obtain fermented raw materials;

[0019] 3. Collect and package the fermented raw materials to obtain finished fermented feed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the cross-sectional structure of the discharge shaft and the axial direction of the feed pipe body;

[0023] Figure 3 For the present invention Figure 2 A schematic diagram of a partially enlarged cross-sectional structure at M;

[0024] Figure 4 It is a cross-sectional structural schematic diagram of the motion state of the feed pipe body of the present invention when being blocked by the blocking plate;

[0025] Figure 5 It is a cross-sectional structural schematic diagram of the motion state of the blocking plate of the present invention when opening the feed pipe body;

[0026] Figure 6 A schematic diagram of a partial three-dimensional structure of another embodiment provided by the present invention;

[0027] Figure 7 It is a partial three-dimensional structural schematic diagram of the positions of the inner ring gear, the driven gear and the transmission gear of the present invention;

[0028] Figure 8 It is a partial cross-sectional structural schematic diagram of the groove and the position of the locking rod of the present invention;

[0029] Fig. 9 For the present invention Figure 7 A schematic cross-sectional structure diagram of ;

[0030] Fig.10 For the present invention Figure 1 A schematic cross-sectional structure diagram of the feed pipe body position;

[0031] Fig.11 It is a partial three-dimensional structural schematic diagram of the inner arc surface groove, arc plate and driven rod position of the mixing cylinder of the present invention;

[0032] Fig.12 A schematic cross-sectional structure diagram of a motion state when the oblique lines of the driven plate and the cam are parallel to each other in another embodiment provided by the present invention;

[0033] Fig.13 A cross-sectional structural schematic diagram of a motion state in which a cam and a follower plate drive a sealing plate to gradually open a feed pipe body in another embodiment provided by the present invention.

[0034] Description of reference numerals:

[0035] 1. Fermentation tank shell; 2. Discharge shaft; 3. Spiral blade; 4. Mixing cylinder; 5. Feed pipe; 6. Feed inlet; 7. Arc groove; 8. Arc plate; 9. Inner ring gear; 10. Driven gear; 11. Positioning plate; 12. Transmission gear; 13. Groove; 14. Locking rod; 15. First elastic member; 16. Driven rod; 17. Second elastic member; 18. Through groove; 19. Sealing plate; 20. Third elastic member; 21. Stirring shaft ; 22. stirring blade; 23. first bevel gear; 24. second bevel gear; 25. connecting shaft; 26. square plate; 27. transmission shaft; 28. through groove; 29. ​​blocking plate; 30. driven plate; 31. third bevel gear; 32. reset plate; 33. fourth elastic member; 34. fifth elastic member; 35. cam; 36. auxiliary ring; 37. auxiliary gear; 38. driving gear; 39. straight rod; 40. auxiliary shaft; 41. stirring blade. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1 To Attachment Fig.13 The present invention is further described in detail.

[0037] An embodiment provided by the present invention relates to a microbial fermentation device for improving the bioavailability of meal, comprising a fermentation tank shell 1, a discharging shaft 2 is rotatably arranged in the fermentation tank shell 1, and a spiral blade 3 for discharging and conveying is arranged on the discharging shaft 2, and further comprising:

[0038] The mixing unit includes a mixing cylinder 4 and a feeding tube 5. The feeding tube 5 is arranged at the top of the fermentation tank shell 1. The mixing cylinder 4 is rotatably arranged on one side of the feeding tube 5 in the fermentation tank shell 1. The end of the discharge shaft 2 is connected to the mixing cylinder 4 to drive the mixing cylinder 4 to mix the fermentation raw materials and the bacterial liquid.

[0039] Specifically, meal microbial fermentation is under artificial control conditions, with plant-based agricultural and sideline products as the main raw materials. Through the metabolism of microorganisms and colony reproduction, the feed raw materials rich in macromolecules are decomposed or converted into high-quality feed rich in organic acids, probiotics, good palatability and rich nutrition. Meal microbial fermentation can degrade macromolecules in the fermentation raw materials and improve the utilization rate of feed nutrients. The fermentation tank shell 1 is a tank body for microbial fermentation. The end of the fermentation tank shell 1 away from the mixing cylinder 4 is provided with a discharge pipe. The discharge pipe is used to discharge the fermented raw materials out of the fermentation tank shell 1. A discharge switch is provided in the discharge pipe. When the discharge switch is turned on, The fermented raw materials can be discharged from the fermentation tank shell 1 through the discharge pipe. When the discharge switch is closed, the raw materials cannot be discharged from the fermentation tank shell 1 through the discharge pipe. This is common knowledge in the art and will not be described in detail. The mixing cylinder 4 is a cylindrical structure. A rotating seal is arranged between the outer wall of the mixing cylinder 4 and the inner wall of the fermentation tank shell 1. A feed port 6 is arranged at the top of the mixing cylinder 4. When the feed pipe body 5 transports the raw materials (that is, the fermentation raw materials and the bacterial liquid), the raw materials fall from the feed pipe body 5 into the mixing cylinder 4, so that the mixing cylinder 4 stores and processes the raw materials. A driving member (the driving member is the driving end feeding) that provides rotational power for the discharge shaft 2 is arranged at the end of the fermentation tank shell 1. The discharging shaft 2 is driven by a driving member to rotate, and the driving member can drive the discharging shaft 2 to rotate clockwise and counterclockwise, and the discharging shaft 2 drives the spiral blade 3 to rotate, so that the spiral blade 3 mixes and conveys the raw materials, and the rotation of the spiral blade 3 can convey the fermented raw materials to the discharging pipe position, so that the raw materials can be discharged from the fermentation tank shell 1 through the discharging pipe. At the same time, the discharging shaft 2 drives the mixing cylinder 4 to rotate, so that the mixing cylinder 4 mixes the raw materials stored therein, so that the mixing cylinder 4 mixes the raw materials evenly, so that the raw materials in the mixing cylinder 4 are mixed more evenly, thereby improving the material The disadvantage of the prior art is that after the materials (i.e., fermentation raw materials and bacterial liquid) are transported to the fermentation tank, the fermentation efficiency of the materials is slow due to uneven mixing of the materials, and some of the materials are not completely fermented, thereby wasting the raw materials. In the present embodiment, the raw materials are transported to the mixing cylinder 4 through the feeding pipe body 5, and the discharging shaft 2 is driven to drive the spiral blade 3 to rotate, so that the spiral blade 3 discharges the materials from the fermentation tank shell 1, and at the same time, the discharging shaft 2 drives the mixing cylinder 4 to rotate, so that the materials in the mixing cylinder 4 are rotated and mixed, so that the materials in the mixing cylinder 4 are mixed more evenly, thereby improving the fermentation efficiency of the materials.

[0040] Furthermore, a feed port 6 is provided on the mixing cylinder 4, and an arc groove 7 is provided on the mixing cylinder 4 at the position of the feed port 6, and an arc panel 8 is slidably installed in the arc groove 7. The arc panel 8 and the feed port 6 cooperate with each other to realize the opening and closing of the feed port 6 by the arc panel 8. Specifically, the centers of the arc groove 7 and the arc panel 8 coincide with the center of the mixing cylinder 4, and the arc panel 8 and the arc groove 7 are slidably sealed with each other. (1) When the raw material is transported from the feed pipe body 5 to the mixing cylinder 4 (that is, when the feed port 6 on the mixing cylinder 4 is rotated to coincide with the feed position of the feed pipe body 5), the arc panel 8 is driven to move toward the inside of the arc groove 7. The arc panel 8 slides at one end to open the feed port 6 on the mixing cylinder 4, so that the raw materials are transported from the feed pipe body 5 to the mixing cylinder 4; (2) when the discharge shaft 2 drives the mixing cylinder 4 to rotate to the point where the feed port 6 and the feed pipe body 5 are staggered (that is, when the feed ports 6 on the mixing cylinder 4 are more separated from the feed pipe body 5), the arc panel 8 is driven to slide toward one end outside the arc groove 7, so that the arc panel 8 closes the feed port 6 on the mixing cylinder 4, so that the raw materials are no longer transported from the feed pipe body 5 to the mixing cylinder 4, and the raw materials are rotated and mixed in the mixing cylinder 4, so that the raw materials can be mixed more evenly, thereby improving the fermentation efficiency and effect of the raw materials.

[0041] Furthermore, a cover-like structure is formed at one end of the discharge shaft 2 close to the mixing cylinder 4, and the cover-like structure includes a disc and an annular protrusion arranged on the edge of the disc, and an inner ring gear 9 is formed on the inner side of the annular protrusion. A driven gear 10 is installed on the side of the mixing cylinder 4, and a positioning plate 11 is installed on the top of the fermentation tank shell 1. A transmission gear 12 is rotatably installed on the positioning plate 11. The inner ring gear 9 and the driven gear 10 are meshed with the transmission gear 12. Specifically, (1) when the driving member drives the discharge shaft 2 to rotate clockwise, the discharge shaft 2 drives the inner ring gear 9 to rotate clockwise, the inner ring gear 9 drives the transmission gear 12 to rotate clockwise, the transmission gear 12 drives the driven gear 10 to rotate counterclockwise, and the driven gear 10 drives the mixing cylinder 4 to rotate counterclockwise; (2) when the driving member drives the discharging shaft 2 to rotate counterclockwise, the discharging shaft 2 drives the inner ring gear 9 to rotate counterclockwise, the inner ring gear 9 drives the transmission gear 12 to rotate counterclockwise, the transmission gear 12 drives the driven gear 10 to rotate clockwise, and the driven gear 10 drives the mixing cylinder 4 to rotate counterclockwise; so that the raw materials in the mixing cylinder 4 can rotate counterclockwise or clockwise Mixing, that is, the rotation direction of the discharge shaft 2 and the inner ring gear 9 is opposite to the rotation direction of the mixing cylinder 4, and because the size of the inner ring gear 9 is larger than the transmission gear 12 and the driven gear 10, the transmission ratio of the inner ring gear 9 to the transmission gear 12 and the driven gear 10 is greater than one, that is, when the inner ring gear 9 rotates one circle, the transmission gear 12 and the driven gear 10 rotate multiple circles, and the transmission ratio of the inner ring gear 9 and the driven gear 10 is determined by the size of the inner ring gear 9 and the transmission gear 12 and the driven gear 10. The transmission ratio of the inner ring gear 9 and the driven gear 10 is set according to actual needs. The sizes of the inner ring gear 9 and the driven gear 10 are fixed, and when the speed of the inner ring gear 9 driven by the driving member is relatively stable, the transmission gear 12 and the driven gear 10 are accelerated with the inner ring gear 9, so that the speed of the driven gear 10 and the mixing cylinder 4 is increased, so that the raw materials in the mixing cylinder 4 can be mixed more evenly, thereby improving the fermentation efficiency and effect of the raw materials. In addition, the spiral blade 3 does not have to transport the material all the time in the fermentation tank shell 1, but can be intermittent or forward and reverse to extend the fermentation time of the material in the fermentation tank shell 1.

[0042] In another embodiment provided by the present invention, a groove 13 is provided at the top of the fermentation tank shell 1, and the groove 13 is located on the side of the mixing cylinder 4 close to the inner ring gear 9. A locking rod 14 is slidably installed in the groove 13, and the top of the locking rod 14 is connected to the inner wall of the groove 13 by a first elastic member 15, and the bottom end of the locking rod 14 is a tip structure; a driven rod 16 is connected to the arc panel 8, and the driven rod 16 is slidably installed in the arc surface groove 7 and penetrates the side wall of the mixing cylinder 4 close to one end of the inner ring gear 9, and the arc panel 8 and the inner wall of the arc surface groove 7 are connected by a plurality of uniformly arranged second elastic members 17; a through groove 18 is provided at the bottom of the mixing cylinder 4 close to the inner ring gear 9, and a sealing plate 19 is slidably installed in the through groove 18, and the sealing plate 19 and the inner wall of the through groove 18 are connected by a third elastic member 20; the part of the driven rod 16 that penetrates from the mixing cylinder 4 abuts against the locking rod 14.

[0043] Specifically, (1) when the driving member drives the discharge shaft 2 to rotate clockwise, the discharge shaft 2 drives the driven gear 10 and the mixing cylinder 4 to rotate counterclockwise through the inner ring gear 9 and the transmission gear 12. At this time, the groove 13, the locking rod 14, the driven rod 16, the arc groove 7, the second elastic member 17 and the arc panel 8 are all arranged in the counterclockwise rotation direction of the mixing cylinder 4. That is, when the mixing cylinder 4 rotates counterclockwise, the arc panel 8 and the driven rod 16 rotate counterclockwise with the mixing cylinder 4. When the feed port 6 on the mixing cylinder 4 just contacts the feed position of the feed tube body 5, the driven rod 16 and the locking rod 14 abut against each other. The two can be wedge-shaped or other inclined surface or arc surface cooperation. Since the first elastic member 15 ( The first elastic member 15 is a component capable of telescopic reset, preferably a spring, which provides a certain elastic force to the locking rod 14, so that the locking rod 14 provides a certain force to the driven rod 16 to block the driven rod 16 from rotating counterclockwise with the mixing cylinder 4. When the mixing cylinder 4 continues to rotate counterclockwise, due to the blocking of the driven rod 16 by the locking rod 14, the driven rod 16 is in a position close to the locking rod 14, and the driven rod 16 no longer rotates. The driven rod 16 and the arc panel 8 are in a stationary state relative to the fermentation tank shell 1, while the mixing cylinder 4 continues to rotate, so that the arc panel 8 gradually opens the feed port 6 of the mixing cylinder 4. In the process of the arc panel 8 gradually opening the feed port 6, the raw materials fall from the feed pipe body 5 into the mixing cylinder. 4, at the same time, the mixing cylinder 4 drives the second elastic member 17 (the second elastic member 17 is a member capable of telescopic reset, preferably a spring) to squeeze the arc plate 8, so that the second elastic member 17 is in a compressed state, until the mixing cylinder 4 rotates to the feeding position where its feeding port 6 and the feeding tube body 5 coincide with each other, the squeezing force of the second elastic member 17 on the arc plate 8 and the driven rod 16 reaches the maximum, and because the bottom end of the locking rod 14 is a tip structure, the driven rod 16 pushes the tip structure of the locking rod 14, so that the locking rod 14 slides toward one end inside the groove 13. In the process of the locking rod 14 sliding toward one end inside the groove 13, the locking rod 14 squeezes the first elastic member 15 to a certain extent until the driven rod 16 is pushed away. The rod 16 slides over the bottom end of the locking rod 14 (that is, the driven rod 16 and the locking rod 14 are separated from each other). Under the rebound action of the first elastic member 15, the locking rod 14 slides to the initial abutment position with the driven rod 16. Under the rebound action of the second elastic member 17, the arc plate 8 re-closes the feed port 6 of the mixing cylinder 4, so that the raw materials in the mixing cylinder 4 will not flow out from the feed port 6 of the mixing cylinder 4. Since the third elastic member 20 (the third elastic member 20 is a component that can be retracted and reset, preferably a spring) keeps pulling the sealing plate 19, the sealing plate 19 keeps opening the through groove 18 of the mixing cylinder 4, so that a small amount of evenly mixed raw materials can flow from the mixing cylinder 4 into the fermentation tank shell 1;(2) When the driving member drives the discharge shaft 2 to rotate counterclockwise, the discharge shaft 2 drives the driven gear 10 and the mixing cylinder 4 to rotate clockwise through the inner ring gear 9 and the transmission gear 12, at this time, the groove 13, the locking rod 14, the driven rod 16, the arc groove 7, the second elastic member 17 and the arc plate 8 are all arranged in the clockwise rotation direction of the mixing cylinder 4 (such as; Figure 5 , Fig. 9As shown), that is, when the mixing cylinder 4 rotates clockwise, the arc plate 8 and the driven rod 16 rotate clockwise with the mixing cylinder 4. When the feed port 6 on the mixing cylinder 4 just contacts the feed position of the feed tube body 5, the driven rod 16 and the locking rod 14 abut against each other. Since the first elastic member 15 (the first elastic member 15 is an original member capable of telescopic reset, preferably a spring) provides a certain elastic force to the locking rod 14, the locking rod 14 provides a certain force to the driven rod 16 to block the driven rod 16 from rotating clockwise with the mixing cylinder 4. When the mixing cylinder 4 continues to rotate clockwise, the driven rod 16 is blocked by the locking rod 14. 16 is in a position close to the locking rod 14, the driven rod 16 no longer rotates, the driven rod 16 and the arc plate 8 are in a stationary state relative to the fermentation tank shell 1, and the mixing cylinder 4 continues to rotate, so that the arc plate 8 gradually opens the feed port 6 of the mixing cylinder 4. In the process of the arc plate 8 gradually opening the feed port 6, the raw material falls from the feed pipe body 5 into the mixing cylinder 4. At the same time, the mixing cylinder 4 drives the second elastic member 17 (the second elastic member 17 is a component that can be retracted and reset, preferably a spring) to squeeze the arc plate 8, so that the second elastic member 17 is in a compressed state (because the second elastic member 17 is arranged on the mixing cylinder 4 to rotate clockwise). In the direction, when the mixing cylinder 4 rotates, the arc plate 8 can squeeze the second elastic member 17), until the mixing cylinder 4 rotates to the point where the feeding port 6 and the feeding position of the feeding tube body 5 coincide with each other, the squeezing force of the second elastic member 17 on the arc plate 8 and the driven rod 16 reaches the maximum, and because the bottom end of the locking rod 14 is a tip structure, the driven rod 16 pushes the tip structure of the locking rod 14, so that the locking rod 14 slides toward one end inside the groove 13. In the process of the locking rod 14 sliding toward one end inside the groove 13, the locking rod 14 squeezes the first elastic member 15 to a certain extent until the driven rod 16 slides from the bottom end of the locking rod 14 (that is, the driven rod 16 is pushed away from the bottom end of the locking rod 14). The locking rod 16 and the locking rod 14 are separated from each other), under the rebound action of the first elastic member 15, the locking rod 14 slides to the initial abutment position with the driven rod 16, and under the rebound action of the second elastic member 17, the arc plate 8 re-closes the feed port 6 of the mixing cylinder 4, so that the raw materials in the mixing cylinder 4 will not flow out from the feed port 6 of the mixing cylinder 4. At this time, due to the pulling of the third elastic member 20 (the third elastic member 20 is an original member that can be retracted and reset, preferably a spring) on ​​the sealing plate 19, the sealing plate 19 opens the through groove 18 of the mixing cylinder 4, so that a small amount of evenly mixed raw materials can flow from the mixing cylinder 4 into the fermentation tank shell 1;In the above two rotation modes, since the installation positions of the groove 13, the locking rod 14, the driven rod 16, the arc surface groove 7 and the arc plate 8 are relatively fixed, there can only be one of the two rotation modes (i.e., clockwise and counterclockwise rotation modes) in this embodiment, and one of the two rotation modes is determined according to the installation positions of the groove 13, the locking rod 14, the driven rod 16, the arc surface groove 7 and the arc plate 8, that is, when the groove 13, the locking rod 14, the driven rod 16, the arc surface groove 7 and the arc plate 8 are all arranged in the counterclockwise direction of the mixing cylinder 4, the mixing cylinder 4 is rotated in a clockwise direction. When the groove 13, the locking rod 14, the driven rod 16, the arc groove 7 and the arc plate 8 are all arranged in the clockwise direction of the mixing cylinder 4, the driving member can only drive the discharging shaft 2 to rotate counterclockwise, and the discharging shaft 2 drives the driven gear 10 and the mixing cylinder 4 to rotate counterclockwise through the inner ring gear 9 and the transmission gear 12. ;

[0044] In another embodiment provided by the present invention, a stirring shaft 21 is installed on the side wall of the end of the inner ring gear 9 away from the discharge shaft 2, the end of the stirring shaft 21 away from the inner ring gear 9 passes through the mixing cylinder 4 and the driven gear 10, and the end of the stirring shaft 21 away from the inner ring gear 9 is rotatably connected to the side wall of the mixing cylinder 4 away from the inner ring gear 9, and a plurality of groups of stirring blades 22 are evenly arranged on the outer wall of the part of the stirring shaft 21 located inside the mixing cylinder 4 along its axial direction.

[0045] Specifically, when the discharging shaft 2 drives the mixing cylinder 4 to rotate through the inner ring gear 9, the driven gear 10 and the transmission gear 12, the discharging shaft 2 drives the stirring shaft 21 to rotate. Since the rotation speeds of the mixing cylinder 4, the discharging shaft 2 and the stirring shaft 21 are different, the rotation speeds and rotation directions of the multiple groups of stirring blades 22 on the mixing cylinder 4 and the stirring shaft 21 are different, and each group of stirring blades 22 are evenly arranged along the circumferential direction of the stirring shaft 21, so that the stirring blades 22 and the mixing cylinder 4 rotate in opposite directions (that is, when the stirring blades 22 rotate clockwise, the mixing cylinder 4 rotates counterclockwise; when the stirring blades 22 rotate counterclockwise, the mixing cylinder 4 rotates clockwise), so that the stirring blades 22 and the mixing cylinder 4 can mix the raw materials more evenly, thereby improving the fermentation efficiency of the raw materials.

[0046] In another embodiment provided by the present invention, an intermittent feeding unit is arranged in the feeding tube body 5, and the intermittent feeding unit is used for intermittent feeding of the mixing cylinder 4, and the intermittent feeding unit includes a first bevel gear 23, a second bevel gear 24 and a third bevel gear 31. A connecting shaft 25 is connected to the end of the mixing cylinder 4, and the connecting shaft 25 is rotatably mounted on the side wall of the fermentation tank shell 1. The connecting shaft 25 penetrates the fermentation tank shell 1 and is connected to the first bevel gear 23 on the outside of the fermentation tank shell 1. A square plate 26 is installed on the side wall of the feeding tube body 5, and a transmission shaft 27 is rotatably mounted on the square plate 26. A second bevel gear 24 is installed at the bottom end of the transmission shaft 27. A third bevel gear 31 is rotatably mounted on the outer wall of the fermentation tank shell 1 above the first bevel gear 23. The wheel 23, the second bevel gear 24 and the third bevel gear 31 are of the same model. The third bevel gear 31 is meshed with the first bevel gear 23 and the second bevel gear 24 respectively. A through groove 28 is provided on the side of the feed tube body 5 close to the first bevel gear 23. A blocking plate 29 is slidably installed in the through groove 28. A driven plate 30 is rotatably installed at the end of the blocking plate 29 away from the feed tube body 5. A reset plate 32 is installed at the top of the blocking plate 29 located between the driven plate 30 and the feed tube body 5. The reset plate 32 and the driven plate 30 are connected by a fourth elastic member 33. The reset plate 32 and the outer wall of the feed tube body 5 are connected by a fifth elastic member 34. A cam 35 is installed at the bottom end of the second bevel gear 24, and the cam 35 and the driven plate 30 are abutted against each other.

[0047] Specifically, when the discharging shaft 2 drives the mixing cylinder 4 to rotate through the inner ring gear 9, the driven gear 10 and the transmission gear 12, the mixing cylinder 4 drives the connecting shaft 25 to rotate, and the connecting shaft 25 drives the first bevel gear 23 to rotate, and the third bevel gear 31 is respectively meshed with the first bevel gear 23 and the second bevel gear 24, so that the first bevel gear 23 drives the third bevel gear 31 to rotate, and the third bevel gear 31 drives the second bevel gear 24 to rotate. Since the first bevel gear 23, the second bevel gear 24 and the third bevel gear 31 are of the same model, when the mixing cylinder 4 and the third bevel gear 31 are rotated, the mixing cylinder 4 and the third bevel gear 31 are rotated. When the first bevel gear 23 rotates one circle, the second bevel gear 24 also rotates one circle, and the second bevel gear 24 drives the cam 35 to rotate. During the process of the second bevel gear 24 driving the cam to rotate one circle: (1) when the feed port 6 on the mixing cylinder 4 just contacts the feed position of the feed tube body 5, and at the same time, the driven rod 16 and the locking rod 14 abut against each other, the two can be wedge-shaped or other inclined or arc-shaped surfaces. At this time, the cam 35 and the driven plate 30 abut against each other, and the oblique lines of the driven plate 30 and the cam 35 (that is, the connecting line between the two base circles of the cam 35) are parallel to each other (such as Fig.12As shown in the figure, since the first elastic member 15 (the first elastic member 15 is a component capable of telescopic reset, preferably a spring) provides a certain elastic force to the locking rod 14, the locking rod 14 provides a certain force to the driven rod 16 to prevent the driven rod 16 from following the rotation of the mixing cylinder 4; (2) when the mixing cylinder 4 continues to rotate, due to the blocking of the driven rod 16 by the locking rod 14, the driven rod 16 is in a position close to the locking rod 14, and the driven rod 16 no longer rotates. The driven rod 16 and the arc plate 8 are in a stationary state relative to the fermentation tank shell 1, while the mixing cylinder 4 continues to rotate, so that the arc plate 8 gradually opens the feed port 6 of the mixing cylinder 4. In the process of the arc plate 8 gradually opening the feed port 6, the cam 35 rotates to its base circle with a smaller radius to push the driven plate 30 to slide toward the end close to the first bevel gear 23. The driven plate 30 moves along the cam 3 5, the blocking plate 29 is driven to slide toward one end close to the first bevel gear 23 until the blocking plate 29 opens the feed tube 5, allowing the raw material to fall from the feed tube 5 into the mixing cylinder 4. At the same time, the blocking plate 29 drives the reset plate 32 to slide toward one end close to the first bevel gear 23, so that the reset plate 32 performs a certain stretching operation on the fifth elastic member 34 (the fifth elastic member 34 is an original member capable of telescopic reset, preferably a spring). When the mixing cylinder 4 rotates to the point where the feed port 6 and the feed position of the feed tube 5 coincide with each other, at this time, the fifth elastic member 34 is in a maximum stretching state, and the fourth elastic member 33 (the fourth elastic member 33 is an original member capable of telescopic reset, preferably a spring) between the driven plate 30 and the reset plate 32 is stretched by the pulling force of the fifth elastic member 34, thereby causing the driven plate 30 to rotate (such as Figure 5 As shown in FIG. 1 , the driven plate 30 rotates a certain angle and is aligned with the bottom of the cam 35, so that the reset plate 32 and the blocking plate 29 slide toward the end away from the first bevel gear 23 by the pullback force of the fifth elastic member 34, so that the blocking plate 29 blocks the feed pipe 5 again (as shown in FIG. 1 ). Figure 3 and Figure 4(as shown), at the same time, the mixing cylinder 4 drives the second elastic member 17 (the second elastic member 17 is a component that can be retracted and reset, preferably a spring) to squeeze the arc plate 8, so that the second elastic member 17 is in a compressed state; (3) when the mixing cylinder 4 rotates to the point where its feed port 6 and the feed position of the feed tube body 5 coincide with each other, the mixing cylinder 4 continues to rotate until the squeezing force of the second elastic member 17 on the arc plate 8 and the driven rod 16 reaches a maximum, and since the bottom end of the locking rod 14 is a tip structure, the driven rod 16 pushes the tip structure of the locking rod 14, so that the locking rod 14 slides toward one end inside the groove 13. During the sliding process of the locking rod 14 toward one end inside the groove 13, the locking rod 14 squeezes the first elastic member 15 to a certain extent until the driven rod 16 slides past the bottom end of the locking rod 14 (that is, the driven rod 16 and the locking rod 14 are mutually Separation), under the rebound action of the first elastic member 15, the locking rod 14 slides to the initial abutment position with the driven rod 16, and under the rebound action of the second elastic member 17, the arc panel 8 re-closes the feed port 6 of the mixing cylinder 4, so that the raw materials in the mixing cylinder 4 will not flow out from the feed port 6 of the mixing cylinder 4; because the third elastic member 20 (the third elastic member 20 is an original member that can be telescopically reset, preferably a spring) has been pulling the sealing plate 19, so that the sealing plate 19 has been opening the through groove 18 of the mixing cylinder 4, so that a small amount of evenly mixed raw materials can flow from the mixing cylinder 4 into the fermentation tank shell 1, thereby improving the mixing effect of the raw materials in the mixing cylinder 4, that is, when the arc panel 8 gradually opens the feed port 6 of the mixing cylinder 4, the cam 35 and the driven plate 30 drive the blocking plate 29 to move and gradually open the feed pipe body 5 (such as Fig.13 As shown in the figure, since the pushing force between the cam 35 and the driven plate 30 is slightly buffered by the elastic force of the fourth elastic member 33, the pushing force between the cam 35 and the driven plate 30 is slightly later than the rotation pushing of the arc plate 8 on the mixing cylinder 4, so that the arc plate 8 first opens the feed port 6 of the mixing cylinder 4, and then the cam 35 and the driven plate 30 will open the feed pipe body 5. When the mixing cylinder 4 rotates to the point where the feed port 6 and the feed pipe body 5 overlap, the material is transported from the feed pipe body 5 and the feed port 6 to the mixing cylinder 4. At this time, the blocking plate 29 is in the fifth elastic member 34. Under the pulling action, the sealing plate 29 first seals the feed pipe body 5, so that the material no longer enters the mixing cylinder 4 from the feed pipe body 5 and the feed port 6. After the mixing cylinder 4 continues to rotate for a certain angle, the second elastic member 17 is subjected to the maximum extrusion force and, under the action of its rebound force, the arc panel 8 re-seals the feed port 6 of the mixing cylinder 4. The sealing plate 29 first seals the feed pipe body 5 under the pullback force of the fifth elastic member 34, and then the arc panel 8 will close the feed port 6 of the mixing cylinder 4, so that no material will remain on the arc panel 8.

[0048] In another embodiment provided by the present invention, the top position of the feed tube body 5 at the square plate 26 is in a disconnected state, that is, the top position of the feed tube body 5 at the square plate 26 is set as two opposite annular surfaces, and the two annular surfaces are rotatably connected by an auxiliary ring 36, and the disconnected position of the feed tube body 5 is rotatably sealed and connected by the auxiliary ring 36, and the auxiliary ring 36 is rotatably connected to the top and bottom of the disconnected position of the feed tube body 5 respectively, and an auxiliary gear 37 is provided on the outer wall of the auxiliary ring 36, and a driving gear 38 is installed at the top of the transmission shaft 27, and the driving gear 38 and the auxiliary gear 37 are meshed with each other, and a straight rod 39 is provided on the inner wall of the auxiliary ring 36, and an auxiliary shaft 40 is installed on the straight rod 39, and a plurality of stirring blades 41 are evenly installed on the outer wall of the auxiliary shaft 40 along its circumferential direction.

[0049] Specifically, when the first bevel gear 23 drives the third bevel gear 31 to rotate, the third bevel gear 31 drives the second bevel gear 24 to rotate, the second bevel gear 24 drives the transmission shaft 27 to rotate, the transmission shaft 27 drives the driving gear 38 to rotate, the driving gear 38 drives the auxiliary gear 37 to rotate, the auxiliary gear 37 drives the auxiliary ring 36 to rotate, the auxiliary ring 36 drives the straight rod 39 to rotate, the straight rod 39 drives the auxiliary shaft 40 to rotate, and the auxiliary shaft 40 drives the stirring blade 41 to rotate, so that the stirring blade 41 stirs the raw material between the auxiliary ring 36 and the sealing plate 29 in the feed pipe body 5, so that the raw material can be stirred once before entering the mixing cylinder 4, further improving the mixing efficiency and quality of the raw material, even if the raw material just enters the mixing cylinder 4 and flows into the fermentation tank shell 1 from the through groove 18 thereof, it can also effectively provide the mixing quality of the raw material, thereby improving the fermentation efficiency and quality of the raw material.

[0050] The present invention also provides a microbial fermentation method for improving the bioavailability of meal, which is based on the above-mentioned microbial fermentation device for improving the bioavailability of meal. The microbial fermentation method for improving the bioavailability of meal comprises the following steps:

[0051] 1. Put the preserved bacteria into the culture medium for cultivation, expand the culture step by step to obtain the culture, make the bacteria gradually adapt to the culture environment, activate the bacteria, and obtain the bacterial solution;

[0052] Second, the bacterial liquid and the fermentation raw materials are transported to the mixing cylinder 4 and the fermentation tank shell 1 through the feed pipe body 5, so that the bacterial liquid and the fermentation raw materials are mixed and inoculated, and the bacterial liquid and the fermentation raw materials are automatically distributed and fermented in the fermentation tank shell 1 to obtain fermented raw materials;

[0053] 3. Collect and package the fermented raw materials to obtain finished fermented feed.

[0054] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A microbial fermentation device for improving the bioavailability of meal, comprising a fermentation tank shell, a discharging shaft rotatably arranged in the fermentation tank shell, and a spiral blade for discharging and conveying is arranged on the discharging shaft, characterized in that: Also includes: A mixing unit, the mixing unit comprising a mixing cylinder and a feeding tube body, the feeding tube body being arranged at the top of the fermentation tank shell, a mixing cylinder being rotatably arranged at one side of the feeding tube body in the fermentation tank shell, and the end of the discharge shaft being connected to the mixing cylinder to drive the mixing cylinder to mix the fermentation raw materials and the bacterial liquid; The mixing cylinder is provided with a feed port, and the mixing cylinder is provided with an arc surface groove at the feed slot position, and an arc panel is slidably installed in the arc surface groove, and the arc panel and the feed port position cooperate with each other to realize the opening and closing of the feed port by the arc panel; An inner ring gear is connected to one end of the discharging shaft close to the mixing cylinder, a driven gear is installed on the side of the mixing cylinder, a positioning plate is installed on the top of the fermentation tank shell, a transmission gear is rotatably installed on the positioning plate, and the inner ring gear and the driven gear are meshed with the transmission gear; A groove is provided at the top of the fermentation tank shell, and the groove is located on the side of the mixing cylinder close to the inner ring gear. A locking rod is slidably installed in the groove, and the top of the locking rod and the inner wall of the groove are connected by a first elastic member, and the bottom end of the locking rod is a tip structure; The arc plate is connected with a driven rod, which is slidably mounted in the arc groove and penetrates the side wall of the mixing cylinder close to one end of the inner ring gear, and the arc plate and the inner wall of the arc groove are connected by a plurality of uniformly arranged second elastic members; A through groove is provided at the bottom of one side of the mixing cylinder close to the inner ring gear, a sealing plate is slidably installed in the through groove, and the sealing plate and the inner wall of the through groove are connected by a third elastic member; The portion of the driven rod that passes through the mixing cylinder abuts against the locking rod; A stirring shaft is installed at the end of the discharge shaft and the inner ring gear. The stirring shaft passes through the mixing cylinder and the driven gear and is rotatably connected to the side wall of the mixing cylinder away from the inner ring gear. A plurality of stirring blades are evenly arranged on the outer wall of the stirring shaft along its axial direction.

2. A microbial fermentation device for improving the bioavailability of meal according to claim 1, characterized in that: A driving member is installed on the side wall of the fermentation tank shell.

3. The microbial fermentation device for improving the bioavailability of meal according to claim 1, characterized in that: An intermittent feeding unit is arranged in the feeding tube body, and the intermittent feeding unit is used for intermittent feeding to the mixing cylinder.

4. A microbial fermentation method for improving the bioavailability of meal, which is based on the microbial fermentation device for improving the bioavailability of meal according to any one of claims 1 to 3, characterized in that: The microbial fermentation method for improving the bioavailability of meals comprises the following steps:

1. Put the preserved bacteria into the culture medium for cultivation, expand the culture step by step to obtain the culture, make the bacteria gradually adapt to the culture environment, activate the bacteria, and obtain the bacterial solution; 2. The bacterial liquid and the fermentation raw materials are transported to the mixing cylinder and the fermentation tank shell through the feed pipe body, so that the bacterial liquid and the fermentation raw materials are mixed and inoculated, and the bacterial liquid and the fermentation raw materials are automatically distributed and fermented in the fermentation tank shell to obtain fermented raw materials; 3. Collect and package the fermented raw materials to obtain finished fermented feed.

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