Continuous strain activation solid-state fermentation device and method for infant oat freeze-dried complementary food

Abstract

The invention relates to the technical field of food processing, in particular to a continuous strain activation solid-state fermentation device and method for infant oat freeze-dried complementary food. A base frame; the first activation module is vertically and fixedly arranged on the base frame; the first activation module is provided with a lifting unit capable of bidirectionally lifting strains and a first liquid guide pipe capable of guiding out the strains in the first activation module; the second activation module is rotationally arranged in the middle of the first activation module, and the second activation module is provided with a stirring unit capable of continuously stirring the strains and a second liquid guide pipe capable of guiding out the strains; when the second liquid guide pipe is rotationally adjusted to be coaxial with the first liquid guide pipe, the first liquid guide pipe is communicated with the second liquid guide pipe; according to the invention, strains can be activated by stages, the activation effect is good, and the efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of food processing, and in particular to a continuous strain activation solid-state fermentation device and method for freeze-dried oat complementary food for infants and young children. Background Art

[0002] In the production process of infant food supplement, the activation quality of probiotics directly affects the fermentation effect and the nutritional value and digestion and absorption capacity of the final product. However, the existing technology mainly relies on static fermentation or a single activation container, which has obvious limitations in strain recovery, proliferation and activation uniformity. First of all, the traditional static fermentation method has a long activation time, the strain wakes up slowly from the dormant state, and the overall proliferation efficiency is low, which is difficult to meet the needs of industrial continuous production.

[0003] Secondly, due to the lack of effective fluid guidance and uniform stirring structure, the strains are prone to sedimentation during the activation process, resulting in insufficient local activation, uneven distribution of bacterial activity, and affecting the stability of subsequent solid-state fermentation; it is difficult to adapt to the needs of large-scale continuous production. These limitations of traditional processes not only reduce the stability of strain activation, but also increase production costs and operational complexity, which is not conducive to achieving an efficient, accurate and controllable probiotic fermentation process. Summary of the invention

[0004] In view of the above problems, a continuous solid-state fermentation device for activating bacteria of freeze-dried oatmeal complementary food for infants and young children is provided. By proposing a double-chamber activation device that can differentiate and activate bacteria, the technical problems that the existing activation equipment has a single fermentation mode and is prone to cause sedimentation of bacteria during the activation process and insufficient activation are solved.

[0005] In order to solve the problems of the prior art, the present invention provides a continuous bacteria activation solid-state fermentation device for freeze-dried oat complementary food for infants and young children, comprising: a base frame; a first activation module, the first activation module is vertically fixed on the base frame; the first activation module is provided with a lifting unit capable of lifting the bacteria in both directions and a first liquid guide tube capable of exporting the bacteria in the first activation module; when the lifting unit is lifted in the forward direction, the bacteria is in a partially lifted state, and when the lifting unit is lifted in the reverse direction, the bacteria is in a fully lifted state; a second activation module, the second activation module is rotatably arranged in the middle of the first activation module, the second activation module is provided with a stirring unit capable of continuously stirring the bacteria and a second liquid guide tube capable of exporting the bacteria; when the second liquid guide tube is rotated and adjusted to a coaxial state with the first liquid guide tube, the first liquid guide tube is connected to the second liquid guide tube.

[0006] Preferably, the first activation module also includes a first storage bin for storing bacterial strains; the first storage bin is arranged in a circular ring shape, and the side wall of the first storage bin is radially provided with a liquid inlet pipe for introducing the bacterial strains into the interior thereof; the lifting unit is coaxially rotatably arranged in the first storage bin, and when the lifting unit is lifted in the forward direction, the bacterial strains are in a partially lifted state, and when the lifting unit is lifted in the reverse direction, the bacterial strains are in a fully lifted state.

[0007] Preferably, the lifting unit includes a lifting ring that can rotate coaxially along the axis of the first storage bin, and the lifting ring is arranged in multiple groups circumferentially along the axis of the first storage bin; a pushing cavity is formed between every two adjacent lifting rings, the lifting ring is arranged in a conical shape, and the tip of the lifting ring is arranged to face the clockwise side.

[0008] Preferably, the lifting unit also includes a guide ring, a limiting roller, a connecting frame and a driving ring; the guide ring is coaxially rotatably arranged in the first storage bin via the limiting roller, and a plurality of limiting rollers are circumferentially arranged along the axis of the guide ring; the lifting ring is centrally sleeved on the outside of the guide ring and circumferentially arranged along the axis of the guide ring; the driving ring is coaxially fixed on the guide ring via the connecting frame and is arranged close to the outside of the guide ring.

[0009] Preferably, the outer diameter of the lifting ring is the same as the inner diameter of the first storage bin and a through hole is formed through the lifting ring for the bacteria to pass through.

[0010] Preferably, the through hole is also provided with a film which can be reversely rotated to open in one direction.

[0011] Preferably, the second activation module also includes a second storage bin capable of storing bacterial strains and a driving unit capable of driving the second storage bin to rotate circumferentially along the axis of the first storage bin; the second storage bin is coaxially fixed to the middle of the first storage bin by the driving unit; the stirring unit is coaxially arranged in the second storage bin; and the second liquid guide tube is vertically arranged at the front end of the second storage bin.

[0012] Preferably, a solenoid valve capable of controlling the opening and closing of the tube opening of the second liquid guiding tube is further provided outside the second liquid guiding tube.

[0013] Preferably, the stirring unit includes an external threaded frame that can assist in guiding the spiral movement of the bacteria, an internal spiral frame that can actively guide the movement of the bacteria, and a driving part that can drive the internal threaded frame to rotate; the external threaded frame is coaxially fixed in the second storage bin; the internal threaded frame is coaxially rotatably arranged in the second storage bin and is located in the external threaded frame; the driving part is fixedly arranged at one end of the second storage bin away from the second liquid guide tube, and the driving end of the driving part passes through the second storage bin and is fixedly connected to the internal threaded frame.

[0014] The method for continuous bacterial strain activation solid-state fermentation of freeze-dried oat complementary food for infants and young children is applied to a continuous bacterial strain activation solid-state fermentation device for freeze-dried oat complementary food for infants and young children, comprising the following steps: S1: First, the bacterial liquid to be activated is introduced into the first storage bin through a liquid inlet pipe provided on the side wall of the first storage bin; the first storage bin is arranged in a circular shape, and the bacterial liquid automatically converges toward the bottom under the action of gravity; S2: Then the lifting unit is started, and the bacterial liquid at the bottom of the first storage bin is continuously lifted by the lifting unit; during the lifting process, the bacterial liquid continuously passes through the lifting unit and converges toward the bottom of the bin, forming a circulating flow, ensuring that the bacterial strains are fully lifted and mixed, and achieving preliminary bacterial strain recovery and activation; S3: After the bacteria in the first storage bin are initially revived, the lifting unit is driven to lift in reverse, and the bacteria are transported to the second activation module through the connected first liquid conduit and the second liquid conduit; S4: In the second activation module, the stirring unit is driven to perform mechanical stirring to generate a dynamic fluid environment, so that the bacteria are evenly distributed in the liquid, ensuring that each strain of bacteria can fully contact nutrients, thereby improving its activity until the activation is completed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes how to stir the bacteria in a relatively flexible state through the cooperation of the first storage bin and the lifting unit arranged in a circular shape; the continuous action of the lifting unit promotes the bacteria to form a uniform circulation in the first storage bin, ensures that the bacteria are fully mixed, and avoids damage to the bacteria caused by excessive stirring, which helps the bacteria to wake up quickly in a mild environment; 2. The present invention realizes how to freely adjust to the corresponding mechanical stirring mode according to the activation requirements through the cooperation of the second storage bin, the stirring unit and the driving unit, so as to achieve a stronger stirring effect by using mechanical stirring, so that the bacteria and nutrients are fully in contact, thereby further improving the activity of the bacteria and ensuring the final activation effect; thus, a double-cavity cascade activation design is adopted, and activation is carried out in stages through two independent first storage bins and second storage bins, and the initial activation is combined with further activation, which can not only effectively accelerate the recovery process of the bacteria, but also ensure that the bacteria are evenly distributed in a dynamic environment, improve activity, and significantly improve activation efficiency; 3. The present invention realizes how to drive the bacteria to circulate through a lifting unit that can be freely lifted according to the activation needs, ensuring the full mixing and uniform lifting of the bacteria and the bacteria. Compared with the traditional stirring method, it can significantly improve the activation uniformity and activity of the bacteria, and avoid the problem of uneven activity caused by insufficient stirring or incomplete local activation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of a continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children; Figure 2 It is a side view of a continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children; Figure 3 yes Figure 2 Cross-sectional view at AA of FIG. Figure 4 yes Figure 3 A partial enlarged view of point B; Figure 5 yes Figure 3 A partial enlarged view of point C; Figure 6 This is a front view of a continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children; Figure 7 yes Figure 6 Cross-sectional view at DD of FIG. Figure 8 yes Figure 7 A local enlarged view of point E; Fig. 9 It is an exploded stereogram of a continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children; Fig.10 yes Fig. 9 A partial enlarged view of point F.

[0017] The numbers in the figure are: 1. base frame; 2. first activation module; 21. lifting unit; 211. lifting ring; 2111. through hole; 2112. film; 212. guide ring; 213. limiting roller seat; 214. connecting frame; 215. driving ring; 22. first liquid guide tube; 221. solenoid valve; 23. first storage bin; 24. liquid inlet pipe; 3. second activation module; 31. stirring unit; 311. external thread frame; 312. internal thread frame; 313. driving unit; 32. second liquid guide tube; 33. second storage bin; 34. driving unit; 341. fixed guide ring; 342. rotating connecting frame. DETAILED DESCRIPTION

[0018] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] See also Figures 1 to 10 As shown: a continuous bacteria activation solid-state fermentation device for freeze-dried oat complementary food for infants and young children, comprising: a base frame 1; a first activation module 2, wherein the first activation module 2 is vertically fixedly arranged on the base frame 1; the first activation module 2 is provided with a lifting unit 21 capable of lifting bacteria in both directions and a first liquid guide tube 22 capable of leading out the bacteria in the first activation module 2; when the lifting unit 21 is lifted in the forward direction, the bacteria is in a partially lifted state, and when the lifting unit 21 is lifted in the reverse direction, the bacteria is in a fully lifted state; a second activation module 3, wherein the second activation module 3 is rotatably arranged in the middle of the first activation module 2, the second activation module 3 is provided with a stirring unit 31 capable of continuously stirring the bacteria and a second liquid guide tube 32 capable of leading out the bacteria; when the second liquid guide tube 32 is rotated and adjusted to a coaxial state with the first liquid guide tube 22, the first liquid guide tube 22 is connected to the second liquid guide tube 32.

[0020] When the strains need to be activated, the strains are first introduced into the first activation module 2, and the lifting unit 21 is started. The lifting unit 21 continuously guides the strains forward to evenly lift and circulate in the first activation module 2, thereby achieving preliminary activation and recovery of the strains, and gradually recovering their activity from a dormant state. The driving mode of the lifting unit 21 can be automatically adjusted according to the activation requirements of the bacteria to achieve a fast or slow awakening process, thereby ensuring that the bacteria are restored to the optimal growth state under appropriate activation conditions.

[0021] After the bacteria are successfully revived in the first activation module 2, if the bacterial activity needs to be further enhanced, the second activation module 3 is started. The second liquid conduit 32 in the second activation module 3 is rotated to communicate with the first liquid conduit 22 of the first activation module 2 to ensure that the bacteria can flow smoothly into the second activation module 3. Subsequently, the lifting unit 21 is driven to move in reverse, so that the bacteria in the bacteria are transferred to the intersection of the first liquid conduit 22 and the second liquid conduit 32 through the lifting unit 21, and finally enter the second activation module 3.

[0022] After the bacteria enter the second activation module 3, the stirring unit 31 is started to enhance the activity of the bacteria through mechanical stirring, ensuring that each strain of bacteria is evenly in full contact with the nutrient solution, thereby effectively activating the bacteria. The design of the stirring unit 31 not only avoids damage to the bacterial structure caused by excessive stirring, but also ensures the uniform distribution of the bacteria in the liquid environment, thereby improving the activation effect until the activation process is completed.

[0023] See also Figure 4 and Figure 7 As shown: the first activation module 2 also includes a first storage bin 23 capable of storing bacterial strains; the first storage bin 23 is arranged in a circular ring shape, and the side wall of the first storage bin 23 is also radially provided with a liquid inlet pipe 24 capable of introducing bacterial strains into the interior thereof; the lifting unit 21 is coaxially rotatably arranged in the first storage bin 23, when the lifting unit 21 is lifted in the forward direction, the bacterial strains are in a partially lifted state, and when the lifting unit 21 is lifted in the reverse direction, the bacterial strains are in a fully lifted state.

[0024] When the strains need to be initially activated, the strains to be activated are first introduced into the first storage bin 23 through the liquid inlet pipe 24 on the side wall of the first storage bin 23. Since the first storage bin 23 adopts a circular ring structure, the introduced strains will automatically converge to the bottom under the action of gravity. During the activation process, the lifting unit 21 is driven to continuously lift the strains at the bottom of the first storage bin 23 to a certain height. During this process, the strains continuously pass through the lifting unit 21 and converge to the bottom, forming a circulating flow.

[0025] This circulating flow ensures the full mixing and uniform promotion of the strains and bacteria. Compared with the traditional stirring method, it can significantly improve the activation uniformity and activity of the strains, and avoid the problem of uneven activity caused by insufficient stirring or incomplete local activation.

[0026] See also Figure 8 and Fig.10 As shown: the lifting unit 21 includes a lifting ring 211 that can coaxially rotate along the axial direction of the first storage bin 23, and the lifting ring 211 is arranged in multiple groups along the circumferential direction of the axis of the first storage bin 23; a pushing cavity is formed between every two adjacent lifting rings 211.

[0027] When the bacterial strains in the first storage bin 23 are lifted by the lifting unit 21, the multiple sets of lifting rings 211 continuously rotate in a circumferential direction along the axis of the first storage bin 23, thereby realizing the continuous lifting effect of the bacterial strains in the first storage bin 23 by using the multiple sets of lifting rings 211. Specifically, a sealing arrangement is formed between the side walls of each set of lifting rings 211 and the inner wall of the first storage bin 23 to ensure that the bacterial liquid and bacterial bodies will not leak or flow. Since multiple pushing cavities are formed between adjacent lifting rings 211, each pushing cavity can effectively push the bacterial strains during the lifting process, thereby ensuring the uniform and continuous lifting of the bacterial strains. Through the action of the pushing cavity, the lifting ring 211 can gradually lift a certain amount of bacterial strains to a higher position, so that the bacterial strains are always kept in an appropriate lifting state, thereby avoiding affecting the activation efficiency due to stagnation or uneven flow.

[0028] The fluidity and mixing properties of the strains are effectively enhanced, the contact between the bacterial liquid and the bacterial body is optimized, and the activity uniformity of the strains is improved. Through the synergistic effect of multiple groups of lifting rings 211, the common problem of insufficient local activation in traditional lifting methods is avoided, thereby significantly improving the activation efficiency and uniformity of the strains, and providing high-quality strains for the subsequent fermentation process.

[0029] See also Fig.10 As shown: the lifting unit 21 also includes a guide ring 212, a limiting roller 213, a connecting frame 214 and a driving ring 215; the guide ring 212 is coaxially rotatably arranged in the first storage bin 23 through the limiting roller 213, and the limiting roller 213 is circumferentially arranged in multiple groups along the axis of the guide ring 212; the lifting ring 211 is centrally sleeved on the outside of the guide ring 212 and circumferentially arranged along the axis of the guide ring 212; the driving ring 215 is coaxially fixed on the guide ring 212 through the connecting frame 214 and is arranged close to the outside of the guide ring 212.

[0030] When it is necessary to drive the lifting unit 21 to rotate continuously in the first storage bin 23 to realize the circulation lifting of the bacterial strains, the driving ring 215 is first driven to rotate by an external driving device such as a friction wheel or a gear, thereby driving the guide ring 212 to rotate continuously in the first storage bin 23. In this process, the multiple sets of lifting rings 211 cooperate with the guide ring 212 to realize the continuous lifting of the bacterial strains in the first storage bin 23. The continuous rotation of the lifting ring 211 not only ensures the circulation lifting of the bacterial strains, but also realizes the effective activation of the bacterial strains by constantly changing the position of the bacterial strains in the storage bin. In addition, the multiple sets of limiting rollers 213 are composed of a fixed seat and a ball embedded in the front end of the fixed seat. The cooperation between the limiting roller 213 and the guide ring 212 can ensure the continuous central rotation of the guide ring 212 in the first storage bin 23, avoiding uneven or deviation of the bacterial strain lifting due to asymmetric rotation.

[0031] See also Fig.10 As shown: the lifting ring 211 is arranged in a cone shape, and the tip of the lifting ring 211 is arranged toward one side in the clockwise direction.

[0032] The lifting ring 211 may also be designed in a circular plate shape to achieve the purpose of lifting the bacteria.

[0033] By adopting the design of a conical lifting ring 211, when rotating in the reverse direction, the geometric characteristics of its conical surface can be used to achieve the maximum lifting effect on the bacteria. Specifically, the conical structure can effectively increase the contact area between the lifting ring 211 and the bacterial liquid during the lifting process, optimize the flow and lifting path of the bacteria, make the bacteria evenly distributed during the lifting process, and avoid aggregation or sedimentation, thereby ensuring the continuous activation of the bacteria. The design of the conical lifting ring 211 effectively improves the lifting efficiency of the bacteria through the angle change of the lifting ring 211, avoiding the problems of lifting dead zones or uneven lifting that may occur in the lifting process of the traditional flat lifting ring 211.

[0034] The lifting ring 211 may also be provided as a circular plate to achieve the purpose of lifting the bacteria. By providing the lifting ring 211 in a conical shape, it is possible to achieve a maximum lifting effect on the bacteria by utilizing the conical lifting ring 211 when the bacteria are lifted by reverse rotation.

[0035] See also Fig.10 As shown, the outer diameter of the lifting ring 211 is the same as the inner diameter of the first storage bin 23 and a through hole 2111 is formed through the lifting ring 211 for the bacteria to pass through.

[0036] By providing a through-hole 2111 on the outer wall of the lifting ring 211, not only can the continuous lifting of the strains be achieved, but also, through the design of the through hole 2111, a part of the lifted strains can continue to pass through the through hole 2111. This design allows the strains to not only move upward in the vertical direction in the lifting ring 211 during the lifting process, but also to intermittently flow horizontally or laterally through the through hole 2111, thereby promoting continuous mutual mixing between the strains in the lifting ring 211. The fluidity of the strains during the lifting process is effectively enhanced, and the strains in different areas are evenly distributed, thereby improving the overall mixing effect. In this way, the strains can maintain a uniform mixing state throughout the entire lifting and activation process, avoiding the local accumulation or uneven distribution of the strains that may exist in the traditional lifting device.

[0037] See also Fig.10 As shown: the through hole 2111 is also provided with a film 2112 which can be reversely rotated and opened in one direction.

[0038] By providing a film 2112 that can be opened one-way when rotating in the reverse direction at the through hole 2111 of the lifting ring 211, the through hole 2111 can be effectively fully blocked when the lifting ring 211 rotates in the reverse direction. When the lifting ring 211 rotates in the forward direction, the film 2112 can be opened freely, allowing the bacteria to flow out of the through hole 2111 smoothly, ensuring the normal overflow of the bacteria and the smooth lifting process; and when the lifting ring 211 rotates in the reverse direction, the film 2112 automatically closes the through hole 2111 through the one-way opening structure, thereby preventing the bacteria from flowing through the through hole 2111, ensuring that the lifting ring 211 completely lifts the bacteria during the reverse rotation process, and preventing the bacteria from being lost or unevenly lifted due to the opening of the through hole 2111.

[0039] The beneficial effect of this design is that it not only ensures the smoothness of the bacterial strain flow and the lifting process when the lifting ring 211 rotates in the forward direction, but also effectively prevents the loss of bacterial strains during the reverse rotation, ensuring the complete reflux and uniform mixing of the bacterial strains during the lifting process. In this way, the efficiency and effect of the bacterial strain activation process can be greatly improved, while reducing the activity loss caused by incomplete lifting or loss of bacterial strains, thereby optimizing the fermentation conditions and improving the quality of the final product.

[0040] See also Figure 4 , Figure 6 and Fig. 9 As shown: the second activation module 3 also includes a second storage bin 33 capable of storing bacterial strains and a driving unit 34 capable of driving the second storage bin 33 to rotate circumferentially along the axis of the first storage bin 23; the second storage bin 33 is coaxially fixed to the middle of the first storage bin 23 by the driving unit 34; the stirring unit 31 is coaxially arranged in the second storage bin 33; the second liquid guide tube 32 is vertically arranged at the front end of the second storage bin 33.

[0041] The driving unit 34 is composed of a fixed guide ring 341, a rotating connecting frame 342 and a driving device; the fixed guide ring 341 is coaxially fixed in the middle of the first storage bin 23; the second storage bin 33 is coaxially rotatably arranged in the fixed guide ring 341 through the rotating connecting frame 342; it is used to drive the second storage bin 33 to rotate circumferentially along the axis of the first storage bin 23; the driving device is a prior art and is not described here in detail, and its purpose is to drive the rotating frame to rotate circumferentially along the axis of the fixed guide ring 341, thereby realizing axial adjustment of the second storage bin 33.

[0042] When it is necessary to introduce the initially activated bacteria in the first storage bin 23 into the second storage bin 33, it is only necessary to drive the driving unit 34 to operate, and use the driving unit 34 to drive the second storage bin 33 to be vertically set, and make the second liquid guide tube 32 fixed on one side of the second storage bin 33 coaxial with the first liquid guide tube 22, and then drive the lifting unit 21 to rotate in the forward direction, so as to achieve the effect of continuously introducing the bacteria in the first storage bin 23 into the second storage bin 33; after the bacteria are all transmitted to the outer wall, the driving unit 34 is driven to operate, so as to achieve the effect of further activating the bacteria by machinery.

[0043] See also Figure 4 As shown, the second liquid guiding tube 32 is also provided with a solenoid valve 221 capable of controlling the opening and closing of the tube opening of the second liquid guiding tube 32 .

[0044] The first liquid guiding tube 22 is also provided with a solenoid valve 221 capable of controlling the opening and closing of the tube opening.

[0045] By setting the solenoid valve 221 outside the second liquid conduit 32, the automatic export or import control of the bacterial strain can be realized. When the system needs to export or import the bacterial liquid through the second liquid conduit 32, the solenoid valve 221 will automatically open to ensure that the bacterial strain can flow smoothly to the required position; when it is not necessary to open, the solenoid valve 221 will automatically close to prevent liquid flow or bacterial strain leakage, and maintain the sealing and stability of the system. The control of the solenoid valve 221 can be adjusted through precise signal transmission to ensure that the flow of the bacterial liquid is only carried out at the set time and under the set conditions.

[0046] See also Figure 7 and Figure 8 As shown: the stirring unit 31 includes an external threaded frame 311 that can assist in guiding the spiral movement of the bacteria, an internal spiral frame that can actively guide the movement of the bacteria, and a driving part 313 that can drive the internal threaded frame 312 to rotate; the external threaded frame 311 is coaxially fixed in the second storage bin 33; the internal threaded frame 312 is coaxially rotatably arranged in the second storage bin 33 and is located in the external threaded frame 311; the driving part 313 is fixedly arranged at one end of the second storage bin 33 away from the second liquid guide tube 32, and the driving end of the driving part 313 passes through the second storage bin 33 and is fixedly connected to the internal threaded frame 312.

[0047] When it is necessary to further activate the bacteria in the second storage bin 33, firstly connect an external power source to drive the driving unit 313 to operate, and the driving unit 313 drives the driving shaft to rotate, thereby synchronously driving the internal threaded frame 312 to rotate. At this time, the internal threaded frame 312 continuously pushes up the bacteria through the spiral action, so that it is fully stirred and activated in the second storage bin 33, thereby achieving further activation of the bacteria. When it is necessary to efficiently activate the bacteria, the external driving device will be activated to drive the second storage bin 33 to flip up and down under the limit of the rotating connecting frame 342, with the help of the guiding action of the fixed guide ring 341. At the same time, under the action of the external threaded frame 311, the bacteria are efficiently guided and mixed during the flipping process, ensuring that each part of the bacteria can fully contact the nutrients, and finally achieve the effect of complete mixing and activation.

[0048] The method for continuous bacterial strain activation solid-state fermentation of freeze-dried oat complementary food for infants uses a continuous bacterial strain activation solid-state fermentation device for freeze-dried oat complementary food for infants, comprising the following steps: S1: First, the bacterial liquid to be activated is introduced into the first storage bin 23 through the liquid inlet pipe 24 provided on the side wall of the first storage bin 23; the first storage bin 23 is arranged in a circular ring shape, and the bacterial liquid automatically converges toward the bottom under the action of gravity; S2: Then the lifting unit 21 is started, and the bacterial liquid at the bottom of the first storage bin 23 is continuously lifted by the lifting unit 21; during the lifting process, the bacterial liquid continuously passes through the lifting unit 21 and converges toward the bottom of the bin, forming a circulating flow, ensuring that the bacterial strains are fully lifted and mixed, and achieving preliminary bacterial strain recovery and activation; S3: After the bacteria in the first storage bin 23 are initially revived, the lifting unit 21 is driven to lift in reverse, and the bacteria are transported to the second activation module 3 through the connected first liquid conduit 22 and second liquid conduit 32; S4: In the second activation module 3, the stirring unit 31 is driven to perform mechanical stirring to generate a dynamic fluid environment, so that the bacteria are evenly distributed in the liquid, ensuring that each strain of bacteria can fully contact nutrients, thereby improving its activity until the activation is completed.

[0049] The invention can not only activate the bacteria in stages but also has good activation effect and high efficiency.

[0050] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal supplementary food for infants and young children, characterized in that: include: A base frame (1); a first activation module (2), the first activation module (2) being vertically fixedly arranged on the base frame (1); the first activation module (2) being provided with a lifting unit (21) capable of lifting bacteria in both directions and a first liquid guide tube (22) capable of guiding bacteria out of the first activation module (2); when the lifting unit (21) is lifted in the forward direction, the bacteria are in a partially lifted state, and when the lifting unit (21) is lifted in the reverse direction, the bacteria are in a fully lifted state; a second activation module (3), the second activation module (3) being rotatably arranged in the middle of the first activation module (2), the second activation module (3) being provided with a stirring unit (31) capable of continuously stirring the bacteria and a second liquid guide tube (32) capable of guiding bacteria out; when the second liquid guide tube (32) is rotatably adjusted to be coaxial with the first liquid guide tube (22), the first liquid guide tube (22) is connected to the second liquid guide tube (32).

2. The continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children according to claim 1, characterized in that: The first activation module (2) further comprises a first storage bin (23) capable of storing bacterial strains; the first storage bin (23) is arranged in a circular ring shape, and a liquid inlet pipe (24) capable of introducing bacterial strains into the first storage bin (23) is radially provided on a side wall thereof; the lifting unit (21) is coaxially rotatably arranged in the first storage bin (23); when the lifting unit (21) is lifted in a forward direction, the bacterial strains are in a partially lifted state, and when the lifting unit (21) is lifted in a reverse direction, the bacterial strains are in a fully lifted state.

3. The continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children according to claim 2, characterized in that: The lifting unit (21) comprises a lifting ring (211) capable of coaxially rotating along the axial direction of the first storage bin (23), and a plurality of groups of the lifting rings (211) are arranged circumferentially along the axis of the first storage bin (23); a pushing cavity is formed between every two adjacent lifting rings (211), and the lifting ring (211) is arranged in a conical shape, and the tip of the lifting ring (211) is arranged to face the clockwise side.

4. The continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children according to claim 3, characterized in that: The lifting unit (21) also includes a guide ring (212), a limiting roller (213), a connecting frame (214) and a driving ring (215); the guide ring (212) is coaxially rotatably arranged in the first storage bin (23) via the limiting roller (213), and a plurality of limiting rollers (213) are circumferentially arranged along the axis of the guide ring (212); the lifting ring (211) is centrally sleeved outside the guide ring (212) and circumferentially arranged along the axis of the guide ring (212); the driving ring (215) is coaxially fixedly arranged on the guide ring (212) via the connecting frame (214) and is arranged close to the outside of the guide ring (212).

5. The continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children according to claim 3, characterized in that: The outer diameter of the lifting ring (211) is the same as the inner diameter of the first storage bin (23), and a through hole (2111) is formed through the lifting ring (211) for the bacteria to pass through.

6. The continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children according to claim 5, characterized in that: The through hole (2111) is also provided with a film (2112) that can be reversely rotated and opened in one direction.

7. The continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children according to claim 2, characterized in that: The second activation module (3) further comprises a second storage bin (33) capable of storing bacterial strains and a driving unit (34) capable of driving the second storage bin (33) to rotate circumferentially along the axis of the first storage bin (23); the second storage bin (33) is coaxially fixedly arranged in the middle of the first storage bin (23) via the driving unit (34); the stirring unit (31) is coaxially arranged in the second storage bin (33); and the second liquid guide tube (32) is vertically arranged at the front end of the second storage bin (33).

8. The continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal supplementary food for infants and young children according to claim 7, characterized in that: A solenoid valve (221) capable of controlling the opening and closing of the tube opening of the second liquid guiding tube (32) is also provided outside the second liquid guiding tube (32).

9. The continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children according to claim 7, characterized in that: The stirring unit (31) comprises an externally threaded frame (311) capable of assisting in guiding the spiral movement of the bacterial strain, an internally threaded frame capable of actively guiding the movement of the bacterial strain, and a driving unit (313) capable of driving the internally threaded frame (312) to rotate; the externally threaded frame (311) is coaxially fixedly arranged in the second storage bin (33); the internally threaded frame (312) is coaxially rotatably arranged in the second storage bin (33) and is located in the externally threaded frame (311); the driving unit (313) is fixedly arranged at an end of the second storage bin (33) away from the second liquid guide tube (32), and the driving end of the driving unit (313) passes through the second storage bin (33) and is fixedly connected to the internally threaded frame (312).

10. A method for continuous bacterial activation solid-state fermentation of freeze-dried oatmeal complementary food for infants and young children, applied to the continuous bacterial activation solid-state fermentation device for freeze-dried oatmeal complementary food for infants and young children as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: First, the bacterial liquid to be activated is introduced into the first storage bin (23) through a liquid inlet pipe (24) provided on the side wall of the first storage bin (23); the first storage bin (23) is arranged in a circular ring shape, and the bacterial liquid automatically converges toward the bottom under the action of gravity; S2: then starting the lifting unit (21) to continuously lift the bacterial liquid at the bottom of the first storage bin (23) using the lifting unit (21); During the lifting process, the bacterial liquid continuously passes through the lifting unit (21) and converges toward the bottom of the bin, forming a circulating flow, ensuring that the bacterial strains are fully lifted and mixed, thereby achieving preliminary bacterial strain recovery and activation; S3: After the bacterial strains in the first storage bin (23) are initially revived, the lifting unit (21) is driven to lift in the reverse direction, and the bacterial strains are transported to the second activation module (3) through the connected first liquid guide tube (22) and the second liquid guide tube (32); S4: In the second activation module (3), the stirring unit (31) is driven to perform mechanical stirring to generate a dynamic fluid environment, so that the bacterial strains are evenly distributed in the liquid, ensuring that each bacterial strain can fully contact nutrients, thereby improving its activity until the activation is completed.

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