Continuous strain activation solid-state fermentation device and method for freeze-dried oat supplementary food for infants and young children

Abstract

The present invention relates to the technical field of food processing, and particularly to a continuous strain activation solid-state fermentation device and method for freeze-dried complementary foods for infants and young children made from oats; a base frame; a first activation module, which is vertically and fixedly arranged on the base frame; the first activation module is provided with a lifting unit capable of lifting the strain bidirectionally and a first liquid guide pipe capable of guiding out the strain in the first activation module; a second activation module, which 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 strain and a second liquid guide pipe capable of guiding out the strain; when the second liquid guide pipe is rotated and adjusted to be coaxial with the first liquid guide pipe, the first liquid guide pipe is communicated with the second liquid guide pipe; the present invention can not only activate the strain in stages, but also has good activation effect and high efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of food processing, and particularly to a continuous strain activation solid-state fermentation device and method for freeze-dried infant oatmeal supplementary food. Background Art

[0002] In the production process of infant supplementary food, the activation quality of probiotics directly affects their fermentation effect and the nutritional value and digestibility of the final product. However, the existing technology mainly relies on static fermentation or a single activation container, which has obvious limitations in terms of strain resuscitation, proliferation, and activation uniformity. First of all, the traditional static fermentation method has a long activation time, the strains wake up slowly from the dormant state, and the overall proliferation efficiency is low, making it difficult to meet the requirements 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 cell activity, and affecting the stability of subsequent solid-state fermentation; it is difficult to meet the requirements of large-scale continuous production. These limitations of the traditional process not only reduce the stability of strain activation but also increase production costs and operation complexity, which is not conducive to achieving an efficient, precise, and controllable probiotic fermentation process. Summary of the Invention

[0004] In view of the above problems, a continuous strain activation solid-state fermentation device for freeze-dried infant oatmeal supplementary food is provided. By proposing a double-chamber activation device capable of differentiating and activating strains, the technical problems of the existing activation device having a single fermentation method, being prone to strain sedimentation during activation, and being prone to insufficient activation are solved.

[0005] To solve the problems of the existing technology, the present invention provides a continuous strain activation solid-state fermentation device for freeze-dried infant oatmeal supplementary food, comprising: a base frame; a first activation module vertically and fixedly arranged on the base frame; the first activation module is provided with a lifting unit capable of lifting the strains bidirectionally and a first liquid guide pipe capable of guiding out the strains in the first activation module; when the lifting unit lifts in the forward direction, the strains are in a partially lifted state, and when the lifting unit lifts in the reverse direction, the strains are in a fully lifted state; a second activation module 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 strains and a second liquid guide pipe capable of guiding out the strains; when the second liquid guide pipe is rotated and adjusted to be coaxial with the first liquid guide pipe, the first liquid guide pipe is communicated with the second liquid guide pipe.

[0006] Preferably, the first activation module further includes a first storage bin capable of storing strains; the first storage bin is arranged in a circular ring shape, and a liquid inlet pipe capable of introducing the strains into its interior is radially opened on the side wall of the first storage bin; the lifting unit is coaxially rotatably arranged in the first storage bin. When the lifting unit is lifted forward, the strains are in a partially lifted state, and when the lifting unit is lifted backward, the strains are in a fully lifted state.

[0007] Preferably, the lifting unit includes a lifting ring capable of coaxially rotating along the axial direction of the first storage bin, and a plurality of groups of the lifting rings are arranged 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 towards the side in the clockwise direction.

[0008] Preferably, the lifting unit further includes a guide ring, a limit roller seat, a connecting frame and a driving ring; the guide ring is coaxially rotatably arranged in the first storage bin through the limit roller seat, and a plurality of groups of the limit roller seats are arranged circumferentially along the axis of the guide ring; the lifting ring is sleeved outside the guide ring in the middle and is arranged circumferentially along the axis of the guide ring; the driving ring is coaxially and fixedly arranged on the guide ring through 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 through holes for the strains to pass through are formed through the lifting ring.

[0010] Preferably, a film that can be unidirectionally opened when rotating backward is further arranged at the through hole.

[0011] Preferably, the second activation module further includes a second storage bin capable of storing 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 and fixedly arranged in the middle of the first storage bin through the driving unit; the stirring unit is coaxially arranged in the second storage bin; the second liquid guide pipe is vertically arranged at the front end of the second storage bin.

[0012] Preferably, an electromagnetic valve capable of controlling the opening and closing of the pipe orifice of the second liquid guide pipe is further arranged outside the second liquid guide pipe.

[0013] Preferably, the stirring unit includes an external thread frame capable of assisting in guiding the spiral movement of the bacterial strain, an internal spiral frame capable of actively guiding the movement of the bacterial strain, and a driving part capable of driving the rotation of the external thread frame; the external thread frame is coaxially and fixedly arranged in the second storage bin; the internal spiral frame is coaxially and rotatably arranged in the second storage bin and is located inside the external thread frame; the driving part is fixedly arranged at one end of the second storage bin away from the second liquid guide pipe, and the driving end of the driving part passes through the second storage bin and is fixedly connected to the internal spiral frame.

[0014] The continuous bacterial strain activation solid-state fermentation method for infant oatmeal freeze-dried supplementary food is applied to the continuous bacterial strain activation solid-state fermentation device for infant oatmeal freeze-dried supplementary food, and includes the following steps:

[0015] S1: First, introduce the bacterial liquid to be activated into the first storage bin through the liquid inlet pipe opened on the side wall of the first storage bin; the first storage bin is circularly arranged, and the bacterial liquid automatically converges towards the bottom under the action of gravity;

[0016] S2: Then start the lifting unit, and use the lifting unit to continuously lift the bacterial liquid at the bottom of the first storage bin; during the lifting process, the bacterial liquid continuously passes through the lifting unit and converges towards the bottom of the bin, forming a circulating flow, ensuring that the bacterial strains are fully lifted and mixed, and realizing the initial resuscitation and activation of the bacterial strains;

[0017] S3: When the bacterial strains in the first storage bin are initially resuscitated, drive the lifting unit to lift reversely, and transport the bacterial strains to the second activation module through the connected first liquid guide pipe and second liquid guide pipe;

[0018] S4: In the second activation module, drive the stirring unit 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 cell can fully contact the nutrients, thereby improving its activity until the activation is completed.

[0019] The beneficial effects of the present invention compared with the prior art are:

[0020] 1. Through the cooperation of the circularly arranged first storage bin and the lifting unit, the present invention realizes how to stir the bacterial strains in a relatively flexible state; through the continuous action of the lifting unit, it promotes the formation of a uniform circulation of the bacteria in the first storage bin, ensures full mixing among the bacterial strains, and can also avoid damage to the bacterial cells caused by excessive agitation, which helps the bacterial strains to quickly wake up in a mild environment;

[0021] 2. Through the cooperation of the second storage bin, the stirring unit and the driving unit, the present invention realizes how to freely adjust to the corresponding mechanical stirring mode according to the activation requirements, so as to achieve a stronger stirring effect by mechanical stirring, enabling full contact between the bacterial strains and nutrients, thereby further enhancing the activity of the bacterial cells and ensuring the final activation effect. Therefore, with the dual-chamber cascade activation design, staged activation is carried out through two independent first storage bins and second storage bins, combining preliminary activation and further activation, which can not only effectively accelerate the resuscitation process of the bacterial strains, but also ensure the uniform distribution of the bacterial cells in the dynamic environment, enhance the activity, and significantly improve the activation efficiency.

[0022] 3. The present invention realizes how to drive the bacterial strains to circulate through the lifting unit that can freely lift according to the activation requirements, ensuring the full mixing and uniform lifting of the bacterial strains and the bacterial cells. Compared with the traditional stirring method, it can significantly improve the activation uniformity and activity of the bacterial strains, avoiding the problem of uneven activity caused by insufficient stirring or incomplete local activation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a perspective view of the continuous bacterial strain activation solid-state fermentation device for freeze-dried infant oatmeal supplementary food;

[0024] Figure 2 is a side view of the continuous bacterial strain activation solid-state fermentation device for freeze-dried infant oatmeal supplementary food;

[0025] Figure 3 is Figure 2 a cross-sectional view taken along the line A-A of

[0026] Figure 4 is Figure 3 a partial enlarged view at B of

[0027] Figure 5 is Figure 3 a partial enlarged view at C of

[0028] Figure 6 is a front view of the continuous bacterial strain activation solid-state fermentation device for freeze-dried infant oatmeal supplementary food;

[0029] Figure 7 is Figure 6 a cross-sectional view taken along the line D-D of

[0030] Figure 8 is Figure 7 a partial enlarged view at E of

[0031] Figure 9 is an exploded perspective view of the continuous bacterial strain activation solid-state fermentation device for freeze-dried infant oatmeal supplementary food;

[0032] Figure 10 is Figure 9Partial enlarged view at F.

[0033] The reference numerals 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, limit roller seat; 214, connecting frame; 215, driving ring; 22, first liquid guide pipe; 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 part; 32, second liquid guide pipe; 33, second storage bin; 34, driving unit; 341, fixed guide ring; 342, rotating connecting frame. Detailed implementation manners

[0034] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0035] See Figures 1 to 10 As shown: The continuous strain activation solid-state fermentation device for infant oatmeal freeze-dried supplementary food includes: a base frame 1; a first activation module 2, the first activation module 2 is vertically and fixedly arranged on the base frame 1; the first activation module 2 is provided with a lifting unit 21 capable of lifting the strain bidirectionally and a first liquid guide pipe 22 capable of guiding out the strain in the first activation module 2; when the lifting unit 21 lifts forward, the strain is in a partial lifting state, and when the lifting unit 21 lifts backward, the strain is in a full lifting state; a second activation module 3, 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 strain and a second liquid guide pipe 32 capable of guiding out the strain; when the second liquid guide pipe 32 is rotated and adjusted to be coaxial with the first liquid guide pipe 22, the first liquid guide pipe 22 is communicated with the second liquid guide pipe 32.

[0036] When it is necessary to activate the strain, first introduce the strain into the first activation module 2 and start the lifting unit 21. The lifting unit 21 continuously guides the strain forward in the first activation module 2 for uniform lifting and circulation, so as to realize the preliminary activation and recovery of the strain, and gradually restore its activity from the dormant state. The driving mode of the lifting unit 21 can be automatically adjusted according to the activation requirements of the bacterial cells to realize a fast or slow awakening process, so as to ensure that the bacterial cells recover to the best growth state under appropriate activation conditions.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] See also Figure 8 and Figure 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.

[0043] When the bacteria strains in the first storage bin 23 are lifted by the lifting unit 21, multiple groups of lifting rings 211 continuously rotate circumferentially along the axis of the first storage bin 23, achieving the continuous lifting effect of the bacteria strains in the first storage bin 23 by using multiple groups of lifting rings 211. Specifically, a sealing arrangement is formed between the side wall of each group of lifting rings 211 and the inner wall of the first storage bin 23 to ensure that the bacterial liquid and bacteria do not leak or flow away. Since multiple pushing cavities are formed between adjacent lifting rings 211, each pushing cavity can effectively push the bacteria strains during the lifting process, thus ensuring the uniform and continuous lifting of the bacteria strains. Through the action of the pushing cavities, the lifting rings 211 can gradually lift a certain amount of bacteria strains to a higher position, keeping the bacteria strains in an appropriate lifting state all the time, so as to avoid affecting the activation efficiency due to stagnation or uneven flow.

[0044] It effectively enhances the fluidity and mixing property of the bacteria strains, optimizes the contact between the bacterial liquid and the bacteria, and further improves the uniformity of the activity of the bacteria strains. Through the synergistic effect of multiple groups of lifting rings 211, the problem of insufficient local activation commonly seen in traditional lifting methods is avoided, thus significantly improving the activation efficiency and uniformity of the bacteria strains and providing high-quality bacteria strains for the subsequent fermentation process.

[0045] See Figure 10 As shown in the figure: The lifting unit 21 further includes a guide ring 212, a limit roller seat 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 limit roller seat 213, and multiple groups of the limit roller seats 213 are circumferentially arranged along the axis of the guide ring 212; the lifting rings 211 are centrally sleeved outside the guide ring 212 and circumferentially arranged along the axis of the guide ring 212; the driving ring 215 is coaxially and fixedly arranged on the guide ring 212 through the connecting frame 214 and is arranged close to the outside of the guide ring 212.

[0046] When it is necessary to drive the lifting unit 21 to continuously rotate in the first storage bin 23 to achieve the cyclic lifting of the bacteria strains, first, an external driving device such as a friction wheel or a gear is used to drive the driving ring 215 to rotate, and then drive the guide ring 212 to continuously rotate in the first storage bin 23. During this process, multiple groups of lifting rings 211 realize the continuous lifting of the bacteria strains in the first storage bin 23 through the cooperation with the guide ring 212. The continuous rotation of the lifting rings 211 not only ensures the cyclic lifting of the bacteria strains, but also effectively activates the bacteria strains by continuously changing the position of the bacteria strains in the storage bin. In addition, the multiple groups of limit roller seats 213 are composed of a fixed seat and balls embedded at the front end of the fixed seat. The cooperation between the limit roller seats 213 and the guide ring 212 can ensure the continuous centering rotation of the guide ring 212 in the first storage bin 23, avoiding uneven or deviated lifting of the bacteria strains caused by asymmetric rotation.

[0047] SeeFigure 10 As shown: The lifting ring 211 is arranged in a conical shape, and the tip of the lifting ring 211 is arranged towards the side in the clockwise direction.

[0048] The lifting ring 211 can also adopt a circular plate design for the purpose of lifting the bacterial strain.

[0049] By adopting the design of the conical lifting ring 211, during reverse rotation, the geometric characteristics of its conical surface can be utilized to achieve the maximum lifting effect on the bacterial strain. 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 bacterial strain, make the bacterial strain evenly distributed during the lifting process, and avoid aggregation or deposition, thereby ensuring the continuous activation of the bacterial strain. The design of the conical lifting ring 211 effectively improves the lifting efficiency of the bacterial strain through the angle change of the lifting ring 211, and avoids the problems of lifting dead zones or uneven lifting that may occur in the traditional flat lifting ring 211 during the lifting process.

[0050] The lifting ring 211 can also be arranged as a circular plate for the purpose of lifting the bacterial strain; by arranging the lifting ring 211 in a conical shape, when lifting the bacterial strain during reverse rotation, the maximum lifting effect on the bacterial strain can be achieved by using the conical lifting ring 211.

[0051] See Figure 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 through holes 2111 for the bacterial strain to pass through are formed through the lifting ring 211.

[0052] By providing through holes 2111 on the outer wall of the lifting ring 211, not only can the continuous lifting of the bacterial strain be achieved, but also through the design of the through holes 2111, a part of the lifted bacterial strain can continuously pass through the through holes 2111. This design enables the bacterial strain to not only perform vertical upward movement within the lifting ring 211 during the lifting process, but also intermittently perform horizontal or lateral flow through the through holes 2111, promoting continuous mutual mixing between the bacterial strains within the lifting ring 211. It effectively enhances the fluidity of the bacterial strain during the lifting process and makes the bacterial strains in different regions evenly distributed, thereby improving the overall mixing effect. In this way, the bacterial strain can maintain a uniform mixing state throughout the lifting and activation process, avoiding the phenomenon of local accumulation or uneven distribution of the bacterial strain that may exist in traditional lifting devices.

[0053] See Figure 10 As shown: A film 2112 that can be unidirectionally opened during reverse rotation is also provided at the through hole 2111.

[0054] By arranging a film 2112 that can rotate reversely and open unidirectionally at the through-hole 2111 of the lifting ring 211, it can effectively achieve a full blockage of the through-hole 2111 when the lifting ring 211 rotates reversely. When the lifting ring 211 rotates forward, the film 2112 can open freely, allowing the bacterial strain to flow out of the through-hole 2111 smoothly, ensuring the normal overflow of the bacterial strain and the smoothness of the lifting process; when the lifting ring 211 rotates reversely, the film 2112 automatically closes the through-hole 2111 through the unidirectional opening structure, thereby preventing the bacterial strain from flowing through the through-hole 2111, ensuring the complete lifting of the bacterial strain by the lifting ring 211 during the reverse rotation process, and avoiding the loss or uneven lifting of the bacterial strain due to the opening of the through-hole 2111.

[0055] The beneficial effect of this design is that it not only ensures the flow of the bacterial strain and the smoothness of the lifting process when the lifting ring 211 rotates forward, but also effectively prevents the loss of the bacterial strain when rotating reversely, ensuring the complete reflux and uniform mixing of the bacterial strain during the lifting process. In this way, the efficiency and effect of the bacterial strain activation process can be greatly improved, while reducing the loss of activity of the bacterial strain caused by incomplete lifting or loss, thereby optimizing the fermentation conditions and improving the quality of the final product.

[0056] See Figure 4 、 Figure 6 and Figure 9 As shown: The second activation module 3 further includes a second storage bin 33 capable of storing the bacterial strain 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 and fixedly arranged in the middle of the first storage bin 23 through the driving unit 34; the stirring unit 31 is coaxially arranged in the second storage bin 33; the second liquid guide pipe 32 is vertically arranged at the front end of the second storage bin 33.

[0057] The driving unit 34 is composed of a fixed guiding ring 341, a rotating connecting frame 342 and a driving device; the fixed guiding ring 341 is coaxially and fixedly arranged in the middle of the first storage bin 23; the second storage bin 33 is coaxially and rotatably arranged in the fixed guiding ring 341 through the rotating connecting frame 342; used to realize driving the second storage bin 33 to be able to rotate circumferentially along the axis of the first storage bin 23; the driving device is prior art and will not be elaborated here. For the purpose of driving the rotating frame to rotate circumferentially along the axis of the fixed guiding ring 341, the axial adjustment of the second storage bin 33 can be realized.

[0058] When it is necessary to introduce the preliminarily activated bacteria in the first storage bin 23 into the second storage bin 33, only need to drive the driving unit 34 to act, use the driving unit 34 to drive the second storage bin 33 to be vertically arranged, and make the second liquid guide pipe 32 fixedly arranged on one side of the second storage bin 33 coaxial with the first liquid guide pipe 22. Then drive the lifting unit 21 to rotate in the forward direction, and the effect of continuously introducing the bacteria in the first storage bin 23 into the second storage bin 33 can be achieved; after all the bacteria are transferred to the outer wall, drive the driving unit 34 to act, and the effect of further activating the bacteria by machinery can be achieved.

[0059] See Figure 4 As shown: An electromagnetic valve 221 capable of controlling the opening and closing of the pipe orifice of the second liquid guide pipe 32 is further arranged outside the second liquid guide pipe 32.

[0060] An electromagnetic valve 221 capable of controlling the opening and closing of the pipe orifice is also arranged at the first liquid guide pipe 22.

[0061] By arranging the electromagnetic valve 221 outside the second liquid guide pipe 32, automatic export or import control of the bacteria can be achieved. When the system needs to export or import the bacterial liquid through the second liquid guide pipe 32, the electromagnetic valve 221 will automatically open to ensure that the bacteria can flow smoothly to the required position; when it does not need to be opened, the electromagnetic valve 221 will automatically close to prevent liquid flow or bacteria leakage and maintain the tightness and stability of the system. The control of the electromagnetic valve 221 can be adjusted through precise signal transmission to ensure that the flow of the bacterial liquid only occurs under set time and conditions.

[0062] See Figure 7 and Figure 8 As shown: The stirring unit 31 includes an external thread frame 311 capable of assisting in guiding the spiral movement of the bacteria, an internal spiral frame capable of actively guiding the movement of the bacteria, and a driving part 313 capable of driving the internal thread frame 312 to rotate; the external thread frame 311 is coaxially and fixedly arranged in the second storage bin 33; the internal thread frame 312 is coaxially and rotatably arranged in the second storage bin 33 and is located inside the external thread frame 311; the driving part 313 is fixedly arranged at one end of the second storage bin 33 away from the second liquid guide pipe 32, and the driving end of the driving part 313 passes through the second storage bin 33 and is fixedly connected to the internal thread frame 312.

[0063] When it is necessary to drive the further activation of the strains located in the second storage bin 33, first connect to an external power supply to drive the operation of the driving part 313. The driving part 313 drives the driving shaft to rotate, thereby synchronously driving the rotation of the internally threaded frame 312. At this time, the internally threaded frame 312 continuously pushes up the strains through the spiral action, enabling them to be fully stirred and activated in the second storage bin 33, thereby realizing the further activation of the strains. When it is necessary to efficiently activate the strains, the external driving device will operate, driving the second storage bin 33 to turn up and down under the limit of the rotating connection frame 342, with the guiding effect in the fixed guiding ring 341. Meanwhile, under the action of the externally threaded frame 311, the strains are efficiently guided and mixed during the turning process, ensuring that every part of the strains can fully contact the nutrients, and finally achieving the effect of complete mixing and activation.

[0064] A continuous strain activation solid-state fermentation method for infant oatmeal freeze-dried supplementary food, applying an infant oatmeal freeze-dried supplementary food continuous strain activation solid-state fermentation device, includes the following steps:

[0065] S1: First, introduce the strain liquid to be activated into the first storage bin 23 through the liquid inlet pipe 24 opened on the side wall of the first storage bin 23; the first storage bin 23 is arranged in a circular ring shape, and the strain liquid automatically converges towards the bottom under the action of gravity;

[0066] S2: Then start the lifting unit 21, and use the lifting unit 21 to continuously lift the strain liquid at the bottom of the first storage bin 23; the strain liquid continuously passes through the lifting unit 21 and converges towards the bottom of the bin during the lifting process, forming a circulating flow, ensuring that the strains are fully lifted and mixed, and realizing the preliminary strain recovery and activation;

[0067] S3: When the strains in the first storage bin 23 are initially recovered, drive the lifting unit 21 to lift reversely, and transport the strains to the second activation module 3 through the connected first liquid guide pipe 22 and second liquid guide pipe 32;

[0068] S4: In the second activation module 3, drive the stirring unit 31 to perform mechanical stirring to generate a dynamic fluid environment, enabling the strains to be evenly distributed in the liquid, ensuring that each strain can fully contact the nutrients, thereby improving its activity until the activation is completed.

[0069] The present invention can not only activate the strains in stages, but also has good activation effect and high efficiency.

[0070] The above embodiments merely represent one or several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, 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 appended 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: Scaffolding; A first activation module, wherein 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 leading the bacteria in the first activation module; the first activation module also includes a first storage bin capable of storing the bacteria, and the first storage bin is arranged in a circular ring shape; a liquid inlet tube capable of leading the bacteria into the inside is radially opened on the side wall of the first storage bin; the lifting unit is coaxially rotatably arranged in the first storage bin, and 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, wherein the second activation module is rotatably 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 bacteria and a second liquid guide tube capable of leading 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 The tube is connected with the second liquid guide tube; the lifting unit includes a lifting ring that can coaxially rotate along the axial direction of the first storage bin, and the lifting ring is arranged in multiple groups along the circumferential direction of 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 cone shape, and the tip of the lifting ring is arranged to the side in the clockwise direction; 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 through the limiting roller, and the limiting roller is arranged in multiple groups along the circumferential direction of the axis of the guide ring; the lifting ring is centrally sleeved on the outside of the guide ring and arranged circumferentially along the axis of the guide ring; the driving ring is coaxially fixed on the guide ring through the connecting frame and is arranged close to the outside of the guide ring; the outer diameter of the lifting ring is the same as the inner diameter of the first storage bin and a through hole is penetrated on the lifting ring for the bacteria to pass through; a film that can be reversely rotated and opened one way is also arranged at the through hole.

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 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 through 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.

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: An electromagnetic valve capable of controlling the opening and closing of the tube opening of the second liquid guiding tube is also arranged outside the second liquid guiding tube.

4. 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 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.

5. 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 4, characterized in that: The following steps are involved: 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 start the lifting unit to continuously lift the bacterial liquid at the bottom of the first storage bin; 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.

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