Turning and throwing device for biological bacterium fermentation

Abstract

The invention is applicable to the field of biological bacterium fermentation, and provides a turning and throwing device for biological bacterium fermentation, which comprises a fermentation tank, a stirring device is arranged at the bottom of the fermentation tank, and two sliding chutes are formed in the side wall of the fermentation tank. The outer portions of the two sliding grooves vertically slide and are connected with two sealing plates in a sealed mode, a turning and throwing mechanism is connected between the two sealing plates, an electric telescopic rod is connected between one sealing plate and the fermentation tank, the fermentation tank is connected with a conveying mechanism, and the fermentation efficiency optimizing system comprises a fermentation material storage state module and a fermentation tank environment state module. A fermentation material mixing state module, a fermentation material fermentation state module and an aperture adjustment module. Through a composite mechanical structure and an intelligent control system, the fermentation efficiency is obviously optimized. The third motor drives the sliding pore plate and the rotating pore plate to move relatively, and the filtering pore diameter is adjusted in real time to adapt to the granularity and the fermentation state.

Description

Technical Field

[0001] The invention belongs to the field of biological bacteria fermentation, and in particular relates to a turning device used for biological bacteria fermentation. Background Art

[0002] In the field of biological fermentation, the turning device is the core equipment to improve fermentation efficiency. The traditional device has significant defects:

[0003] Static turning structure: The turning mechanism is usually fixed in the fermentation tank, and the height and position cannot be adjusted, resulting in a limited turning range of the fermentation material and easy accumulation of materials at the bottom; Non-adjustable aperture: The turning plate adopts a fixed aperture and cannot adapt to materials of different particle sizes or fermentation states, resulting in uneven filtration, poor air permeability or blockage.

[0004] Isolated parameter control: Existing technologies rely on manual experience to adjust parameters such as stirring and conveying, and fail to establish a dynamic relationship between the fermentation material state (humidity, thickness), environment (temperature, airflow) and mechanical movement (stirring, conveying, and turning speed), resulting in low fermentation efficiency. Summary of the Invention

[0005] The purpose of the embodiment of the present invention is to provide a turning device for biological bacterial fermentation, aiming to solve the problem that the existing technology relies on manual experience to adjust parameters such as stirring and conveying, and fails to establish a dynamic relationship between the state of the fermentation material, the environment and the mechanical movement, resulting in low fermentation efficiency.

[0006] The invention is achieved in this way. A turning and throwing device for biological bacteria fermentation includes a fermentation tank, a stirring device is provided at the bottom center position of the fermentation tank, and the stirring device is used to stir and mix the fermented material, and the side wall of the fermentation tank is provided with two slide grooves, the outside of the two slide grooves are vertically slidable and sealed with two sealing plates, a turning and throwing mechanism is connected between the two sealing plates, and an electric telescopic rod is connected between one of the sealing plates and the fermentation tank, the turning and throwing mechanism is located at the upper side of the stirring device, and the turning and throwing mechanism can increase the contact area between the fermentation material and air by continuously turning the fermentation material upward, and the turning and throwing mechanism can also filter and disperse the fermentation material, the fermentation tank is connected to a conveying mechanism, and the conveying mechanism can continuously convey the fermentation material at the bottom of the fermentation tank to the upper side of the turning and throwing mechanism, an air compressor is provided near the top of the fermentation tank, and an air outlet is provided on the fermentation tank facing the air compressor;

[0007] A fermentation efficiency optimization system comprising:

[0008] The fermentation material storage state module can construct a fermentation material storage state model based on the fermentation material humidity and fermentation material accumulation thickness in the fermentation tank and output the fermentation material storage state coefficient;

[0009] A fermentation tank environment state module, which can construct a fermentation tank environment state model based on the temperature in the fermentation tank and the air flow rate in the fermentation tank and output the fermentation tank environment state coefficient;

[0010] The fermentation material mixing state module can construct a fermentation material mixing state model based on the stirring speed of the stirring device, the conveying speed of the conveying mechanism, and the flipping speed of the flipping mechanism, and output the fermentation material mixing state coefficient;

[0011] Fermentation material fermentation state module: constructs a fermentation material fermentation state model based on the fermentation material storage state coefficient, the fermentation tank environment state coefficient and the fermentation material mixing state coefficient, and outputs the fermentation material fermentation state coefficient;

[0012] The aperture adjustment module constructs an aperture adjustment model based on the standard aperture of the turning device, the particle size of the fermentation material, and the fermentation state coefficient of the fermentation material, and outputs the target aperture to control the turning mechanism to adjust its own aperture to the target aperture.

[0013] According to a further technical solution, the flipping mechanism includes a No. 2 motor, a rotating orifice plate, a sliding orifice plate and a No. 3 motor;

[0014] The No. 2 motor is fixedly connected to one of the sealing plates, and the output shaft of the No. 2 motor is rotatably connected to the other sealing plate. The output shaft of the No. 2 motor is fixedly connected to multiple rotating orifice plates, and the rotating orifice plates are all slidably connected to the sliding orifice plates. The rotating orifice plates are fixedly connected to the No. 3 motor, and the output shaft of the No. 3 motor is threadedly connected to the sliding orifice plate. Both the rotating orifice plate and the sliding orifice plate are provided with filter holes. The aperture of the flipping mechanism refers to the maximum diameter for the fermentation material to pass through between the filter holes on the rotating orifice plate and the filter holes on the sliding orifice plate.

[0015] According to a further technical solution, the stirring device includes a No. 1 motor and a stirring rod. The No. 1 motor is fixedly connected to the center of the bottom of the fermentation tank, and the output shaft of the No. 1 motor is fixedly connected to multiple stirring rods.

[0016] According to a further technical solution, the conveying mechanism includes a conveying cylinder, a fourth motor, a rotating shaft and a push plate;

[0017] A feed port is connected between the bottom of the conveying cylinder and the fermentation tank, a discharge pipe is connected to the top of the conveying cylinder, a No. 4 motor is fixedly connected to the bottom of the conveying cylinder, an output shaft of the No. 4 motor is fixedly connected to a rotating shaft, and a push plate is arranged along the vertical spiral of the rotating shaft.

[0018] A further technical solution is that a humidity sensor and a visual monitor are provided in the fermentation tank. The humidity sensor can monitor the humidity information of the fermented material, and the visual monitor can monitor the thickness information of the fermented material in the fermentation tank. The fermented material state model is:

[0019] S f =α1H-α2T;

[0020] Among them, α1 represents the humidity weight coefficient, α1>0; α2 represents the thickness weight coefficient, α2>0; H represents the humidity of the fermentation material, α1 is dimensionless and ranges from [0,1]; T represents the fermentation material stacking index, which is the difference between the actual stacking thickness of the fermentation material and the basic stacking thickness of the fermentation material divided by the basic stacking thickness of the fermentation material.

[0021] A further technical solution is that a temperature sensor and an air flow rate sensor are provided in the fermenter, and the temperature information and air flow rate information in the fermenter are calculated by the temperature sensor and the air flow rate sensor. The temperature information and the air flow rate information are normalized by the maximum and minimum normalization formulas, and the temperature index and the air flow rate index are obtained. The fermenter environmental state model is:

[0022] S e =β1Temp+β2A f ;

[0023] Among them, β1 represents the temperature weight coefficient, β2 represents the air flow rate weight coefficient, β1>0, β2>0, and β1+β2=1. In actual application, the values ​​of weight coefficients β1 and β2 can be determined through experimental data or production experience; Temp represents the temperature index, A f Indicates the air velocity index.

[0024] A further technical solution is that the stirring device, conveying mechanism and flipping mechanism are all electrically connected to the PLC controller and the data processor, and the stirring speed information of the stirring device, the conveying speed information of the conveying mechanism and the flipping speed information of the flipping mechanism are obtained through the data processor. The real-time stirring speed of the stirring device, the real-time conveying speed of the conveying mechanism and the real-time flipping speed of the flipping mechanism are divided by the corresponding maximum safe operating speed, and the stirring speed index, the conveying speed index and the flipping speed index are obtained; the fermentation material mixing state model is:

[0025] S m =γ1S S +γ2C s +γ3T s ;

[0026] Wherein, γ1 represents the weight coefficient of stirring speed, γ1>0; γ2 represents the weight coefficient of conveying speed, γ2>0;

[0027] γ3 represents the flipping speed weight coefficient, γ3>0, and γ1+γ2+γ3=1; S S Indicates the stirring speed index, C sIndicates the conveying speed index, T s Indicates the flipping speed index.

[0028] A further technical solution is that the fermentation state model of the fermentation material is:

[0029] S0=δ1S f +δ2S e +δ3S m ;

[0030] Among them, δ1 represents the fermentation state weight coefficient, and δ1>0; δ2 represents the environmental state weight coefficient, and δ2>0; δ3 represents the mixing state weight coefficient, and δ3>0, δ1+δ2+δ3=1; S0 represents the fermentation state coefficient of the fermentation material.

[0031] Further technical solution, the aperture adjustment model is:

[0032] A t =φ1A s +φ2D-φ3S0;

[0033] Among them, φ1 represents the standard pore size weight coefficient, φ1>0; φ2 represents the particle size weight coefficient, φ2>0; φ3 represents the fermentation state weight coefficient, φ3>0; φ1, φ2 and φ3 can all be determined based on production experience.

[0034] A s Indicates the standard aperture, specifically the standard aperture of the turning mechanism for the fermentation material to pass through, unit: mm; D indicates the particle size of the fermentation material, unit: mm; A t Indicates the target aperture, A t >D.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] This invention significantly optimizes fermentation efficiency through a composite mechanical structure and intelligent control system. A third motor drives the relative displacement of the sliding and rotating orifice plates, adjusting the filter aperture in real time to suit particle size and fermentation conditions, preventing clogging and increasing oxygen contact area.

[0037] Motor No. 2 drives all rotating orifice plates to rotate, and all rotating orifice plates flip the fermentation material. During the flipping process, the fermentation material continuously leaks out from between the rotating orifice plates and the sliding orifice plates, thereby improving the dispersion effect of the fermentation material and improving the contact degree between the fermentation material and oxygen.

[0038] This mathematical model transforms fermentation process experience into controllable variables, adapting to different materials through coefficient adjustment. It is the core algorithmic framework for intelligent fermentation. All models utilize linear combinations because they are simple, interpretable, and easy to fit parameters. In some modules, the weight coefficients sum to 1, which helps standardize the output coefficients. Input variables should be normalized or standardized to avoid dimensionality effects. The entire system optimizes fermentation efficiency by adjusting the aperture of the flipping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of the present invention;

[0040] Figure 2 Schematic diagram of the structure of the stirring device in the present invention;

[0041] Figure 3 Schematic diagram of the structure of the flipping mechanism in the present invention;

[0042] Figure 4 It is a structural schematic diagram of the conveying mechanism in the present invention;

[0043] Figure 5 Schematic diagram of the principle of the fermentation efficiency optimization system of the present invention.

[0044] In the attached figure: 1. Fermentation tank 1; 2. Stirring device; 21. Motor No. 1; 22. Stirring rod; 3. Sealing plate; 4. Electric telescopic rod; 5. Flipping mechanism; 51. Motor No. 2; 52. Rotating orifice plate; 53. Sliding orifice plate; 54. Motor No. 3; 6. Conveying mechanism; 61. Conveying cylinder; 62. Motor No. 4; 63. Rotating shaft; 64. Pushing plate; 7. Air compressor; 8. Air outlet; 9. Chute; 10. Feed port; 11. Discharge pipe. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0047] like Figures 1-5The figure shows a turning device for biological fermentation provided by an embodiment of the present invention, including a fermentation tank 1, a stirring device 2 is provided at the bottom center of the fermentation tank 1, and the stirring device 2 is used to stir and mix the fermented material. The side wall of the fermentation tank 1 is provided with two chutes 9, and the outside of the two chutes 9 are vertically slidable and sealed with two sealing plates 3, a turning mechanism 5 is connected between the two sealing plates 3, and an electric telescopic rod 4 is connected between one of the sealing plates 3 and the fermentation tank 1, the turning mechanism 5 is located on the upper side of the stirring device 2, and the turning mechanism 5 can increase the contact area between the fermentation material and the air by continuously turning the fermentation material upward, and the turning mechanism 5 can also filter and disperse the fermentation material, the fermentation tank 1 is connected to a conveying mechanism 6, and the conveying mechanism 6 can continuously convey the fermentation material at the bottom of the fermentation tank 1 to the upper side of the turning mechanism 5, an air compressor 7 is provided near the top of the fermentation tank 1, and an air outlet 8 is provided on the fermentation tank 1 opposite to the air compressor 7;

[0048] A fermentation efficiency optimization system comprising:

[0049] A fermentation material storage state module, which can construct a fermentation material storage state model according to the fermentation material humidity and fermentation material accumulation thickness in the fermentation tank 1 and output a fermentation material storage state coefficient;

[0050] The fermenter 1 environmental state module is capable of constructing an environmental state model of the fermenter 1 according to the temperature in the fermenter 1 and the air flow rate in the fermenter 1 and outputting an environmental state coefficient of the fermenter 1;

[0051] The fermentation material mixing state module can construct a fermentation material mixing state model based on the stirring speed of the stirring device 2, the conveying speed of the conveying mechanism 6, and the flipping speed of the flipping mechanism 5, and output the fermentation material mixing state coefficient;

[0052] Fermentation material fermentation state module: constructs a fermentation material fermentation state model based on the fermentation material storage state coefficient, the fermentation tank 1 environmental state coefficient and the fermentation material mixing state coefficient, and outputs the fermentation material fermentation state coefficient;

[0053] The aperture adjustment module constructs an aperture adjustment model based on the standard aperture of the turning device, the particle size of the fermentation material and the fermentation state coefficient of the fermentation material, outputs the target aperture, and controls the turning mechanism 5 to adjust its own aperture to the target aperture.

[0054] In this embodiment, the fermentation material is poured into the fermentation tank 1, and the electric telescopic rod 4 is started. The electric telescopic rod 4 pushes the sealing plate 3 to slide vertically on the surface of the fermentation tank 1. At this time, driven by the sealing plate 3, the flipping mechanism 5 is adjusted to the upper layer of the fermentation material. The stirring device 2 is started to mix and stir the fermentation material, thereby increasing the mixing uniformity of the fermentation material. At the same time, the conveying mechanism 6 is started. The conveying mechanism 6 can continuously convey the fermentation material at the bottom of the fermentation tank 1 to the upper side of the flipping mechanism 5, and the flipping mechanism 5 can increase the contact area between the fermentation material and the air by continuously flipping the fermentation material upward.

[0055] In the above process, in the fermentation efficiency optimization system, the aperture adjustment module constructs an aperture adjustment model based on the standard aperture of the turning device, the particle size of the fermentation material and the fermentation state coefficient of the fermentation material, and outputs the target aperture, and controls the turning mechanism 5 to adjust its own aperture to the target aperture.

[0056] like Figure 3 As shown, as a preferred embodiment of the present invention, the flipping mechanism 5 includes a second motor 51, a rotating hole plate 52, a sliding hole plate 53 and a third motor 54;

[0057] The No. 2 motor 51 is fixedly connected to one of the sealing plates 3, and the output shaft of the No. 2 motor 51 is rotatably connected to the other sealing plate 3. The output shaft of the No. 2 motor 51 is fixedly connected to multiple rotating orifice plates 52, and the rotating orifice plates 52 are all slidably connected to the sliding orifice plates 53. The rotating orifice plates 52 are fixedly connected to the No. 3 motor 54, and the output shaft of the No. 3 motor 54 is threadedly connected to the sliding orifice plate 53. Filter holes are provided on the rotating orifice plate 52 and the sliding orifice plate 53. The aperture of the flipping mechanism 5 refers to the maximum diameter for the fermentation material to pass through between the filter holes on the rotating orifice plate 52 and the filter holes on the sliding orifice plate 53.

[0058] In this embodiment, when in use, the electric telescopic rod 4 is activated, pushing the sealing plate 3 to slide vertically across the surface of the fermentation tank 1. Driven by the sealing plate 3, the output shaft of the second motor 51 is parallel to the topmost layer of fermentation material. The second motor 51 is activated, driving all the rotating orifice plates 52 to rotate, causing them to flip the fermentation material. During this flipping process, the fermentation material continuously leaks from between the rotating orifice plates 52 and the sliding orifice plates 53, thereby improving the dispersion of the fermentation material and increasing its exposure to oxygen.

[0059] like Figure 2 As shown, as a preferred embodiment of the present invention, the stirring device 2 includes a No. 1 motor 21 and a stirring rod 22, the No. 1 motor 21 is fixedly connected to the center position of the bottom of the fermentation tank 1, and the output shaft of the No. 1 motor 21 is fixedly connected to multiple stirring rods 22.

[0060] In this embodiment, the No. 1 motor 21 is started, and the No. 1 motor 21 drives all the stirring rods 22 to rotate, and all the stirring rods 22 mix and stir the fermentation material at the bottom of the fermentation tank 1, thereby improving the mixing uniformity of the fermentation material.

[0061] like Figure 3 As shown, as a preferred embodiment of the present invention, the conveying mechanism 6 includes a conveying cylinder 61, a fourth motor 62, a rotating shaft 63 and a push plate 64;

[0062] A feed port 10 is connected between the bottom of the conveying cylinder 61 and the fermentation tank 1, a discharge pipe 11 is connected to the top of the conveying cylinder 61, a No. 4 motor 62 is fixedly connected to the bottom of the conveying cylinder 61, and the output shaft of the No. 4 motor 62 is fixedly connected to a rotating shaft 63, and a push plate 64 is provided along the vertical spiral of the rotating shaft 63.

[0063] In this embodiment, the No. 4 motor 62 is started, the No. 4 motor 62 drives the rotating shaft 63 to rotate, and the rotating shaft 63 drives the pushing plate 64 to push the fermentation material upward, so that the fermentation material accumulated at the bottom can be continuously transported upward, and under the action of the turning mechanism 5, it is fully turned over and comes into contact with oxygen.

[0064] like Figure 5 As shown in FIG. 1 , as a preferred embodiment of the present invention, a humidity sensor and a visual monitor are provided in the fermentation tank 1. The humidity sensor can monitor the humidity information of the fermented material, and the visual monitor can monitor the accumulation thickness information of the fermented material in the fermentation tank 1. The fermented material state model is:

[0065] S f =α1H-α2T;

[0066] Among them, α1 represents the humidity weight coefficient, α1>0; α2 represents the thickness weight coefficient, α2>0; H represents the humidity of the fermentation material, α1 is dimensionless and ranges from [0,1]; T represents the fermentation material stacking index, which is the difference between the actual stacking thickness of the fermentation material and the basic stacking thickness of the fermentation material divided by the basic stacking thickness of the fermentation material.

[0067] Formula Description: Microbial fermentation efficiency is positively correlated with humidity H (appropriate humidity promotes microbial metabolism, see "Aerobic Fermentation Kinetics"). The fermentation material accumulation index T affects the oxygen diffusion rate (excessive thickness leads to an increase in anaerobic zones, reducing fermentation efficiency, see Fermentation Tank 1 Design Specifications). The linear model of α1H-α2T simplifies the interaction between humidity and thickness, facilitating parameter fitting. The weight coefficients α1 and α2 are calibrated through fermentation experiments.

[0068] S f Indicates the fermentation material state coefficient, S f Quantify the physical fermentability of the fermentation material, Sf The increase indicates that the material is in a highly active state, S f A decrease indicates that the fermentation efficiency of the fermentation material needs to be adjusted.

[0069] As a preferred embodiment of the present invention, a temperature sensor and an air flow rate sensor are installed near the top of the inner wall of the fermenter 1. The temperature information and air flow rate information in the fermenter 1 are calculated by the temperature sensor and the air flow rate sensor, and the temperature information and the air flow rate information are normalized by the maximum and minimum normalization formula to obtain the temperature index and the air flow rate index. The environmental state model of the fermenter 1 is:

[0070] S e =β1Temp+β2A f ;

[0071] Among them, β1 represents the temperature weight coefficient, β2 represents the air flow rate weight coefficient, β1>0, β2>0, and β1+β2=1. In actual application, the values ​​of weight coefficients β1 and β2 can be determined through experimental data or production experience; Temp represents the temperature index, A f Indicates the air velocity index.

[0072] The formula shows that the temperature index Temp directly affects the enzyme reaction rate, and the air flow rate index A f Determine the oxygen supply rate by normalizing the temperature information and air flow rate information to avoid dimension interference, S e Indicates the environmental state coefficient of fermentation tank 1, S e Used to evaluate environmental suitability, S e The increase indicates that high temperature or high oxygen environment accelerates fermentation, S e Decrease means that low temperature or low oxygen environment reduces the fermentation rate.

[0073] As a preferred embodiment of the present invention, the stirring device 2, the conveying mechanism 6 and the flipping mechanism 5 are all electrically connected to the PLC controller and the data processor. The stirring speed information of the stirring device 2, the conveying speed information of the conveying mechanism 6 and the flipping speed information of the flipping mechanism 5 are obtained through the data processor. The real-time stirring speed of the stirring device 2, the real-time conveying speed of the conveying mechanism 6 and the real-time flipping speed of the flipping mechanism 5 are divided by the corresponding maximum safe operating speed, and the stirring speed index, the conveying speed index and the flipping speed index are obtained; the fermentation material mixing state model is:

[0074] S m =γ1S S +γ2C s +γ3T s ;

[0075] Wherein, γ1 represents the weight coefficient of stirring speed, γ1>0; γ2 represents the weight coefficient of conveying speed, γ2>0;

[0076] γ3 represents the flipping speed weight coefficient, γ3>0, and γ1+γ2+γ3=1; S S Indicates the stirring speed index, C s Indicates the conveying speed index, T s Indicates the flipping speed index.

[0077] Formula description, γ1S S +γ2C s +γ3T s The stirring speed index S is converted into S , conveying speed index C s and flip speed index T s During fitting, in actual application, the weight coefficients γ1, γ2 and γ3 can be determined through experimental data or production experience.

[0078] As a preferred embodiment of the present invention, the fermentation state model of the fermentation material is:

[0079] S0=δ1S f +δ2S e +δ3S m ;

[0080] Among them, δ1 represents the fermentation state weight coefficient, and δ1>0; δ2 represents the environmental state weight coefficient, and δ2>0; δ3 represents the mixing state weight coefficient, and δ3>0, δ1+δ2+δ3=1; S0 represents the fermentation state coefficient of the fermentation material.

[0081] The formula shows that the fermentation efficiency is determined by the fermentation material state coefficient (S f ), fermentation tank 1 environmental state coefficient (S e ), fermentation material mixing state coefficient (S m ) jointly determine (multi-factor coupling effect); the linear superposition form is derived from the independence of each module, and the values ​​of δ1, δ2, and δ3 can be adjusted through production experience.

[0082] The fermentation state weight coefficient δ1 represents the contribution of the fermentation material state to the oxidative fermentation, the environmental state weight coefficient δ2 represents the contribution of the environmental state to the oxidative fermentation, and the mixing state weight coefficient δ3 represents the contribution of the mixing state to the oxidative fermentation. When the fermentation material fermentation state coefficient S0 increases, it means that the fermentation material is efficiently fermented. When the fermentation material fermentation state coefficient S0 decreases, the fermentation rate of the fermentation material decreases.

[0083] As a preferred embodiment of the present invention, the aperture adjustment model is:

[0084] At =φ1A s +φ2D-φ3S0;

[0085] Among them, φ1 represents the standard pore size weight coefficient, φ1>0; φ2 represents the particle size weight coefficient, φ2>0; φ3 represents the fermentation state weight coefficient, φ3>0; φ1, φ2 and φ3 can all be determined based on production experience.

[0086] A s Indicates the standard aperture, specifically the standard aperture of the turning mechanism 5 for the fermentation material to pass through, unit: mm; D indicates the particle size (diameter) of the fermentation material, unit: mm; A t Indicates the target aperture, A t >D.

[0087] Formula description, standard aperture A s Provides benchmark design value, particle size D determines the minimum diameter (A t >D to avoid clogging); fermentation state S0 regulates dynamic demand; when S0 decreases, it means that the fermentation rate of the fermentation material decreases, and at this time, A is increased t It can increase the dispersion efficiency of the turning mechanism 5 on the fermentation material; when D increases, it can make A t Increase, further improve the contact efficiency between fermentation material and oxygen.

[0088] This mathematical model converts fermentation process experience into controllable variables and adapts to different materials through coefficient adjustment. It is the core algorithm framework for realizing intelligent fermentation.

[0089] All models adopt the form of linear combination because linear models are simple, highly interpretable, and easy to fit parameters. In practical applications, weight parameters can be determined by experimental data (such as regression analysis) or production experience. In some modules, the sum of weight coefficients is 1, which helps to standardize the output coefficients. The input variables should be normalized or standardized to avoid dimensional effects. The entire system optimizes fermentation efficiency by adjusting the aperture of the flipping mechanism 5.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A turning device for biological bacterial fermentation, comprising a fermentation tank, characterized in that: The bottom center of the fermentation tank is provided with a stirring device for stirring and mixing the fermented material, the side wall of the fermentation tank is provided with two chutes, the outsides of the two chutes are vertically slidable and sealed with two sealing plates, a flipping mechanism is connected between the two sealing plates, and an electric telescopic rod is connected between one of the sealing plates and the fermentation tank, the flipping mechanism can increase the contact area between the fermented material and the air by continuously flipping the fermented material upward, the flipping mechanism can also filter and disperse the fermented material, and the fermentation tank is connected to a conveying mechanism, which can continuously convey the fermented material at the bottom of the fermentation tank to the upper side of the flipping mechanism; A fermentation efficiency optimization system comprising: The fermentation material storage state module can construct a fermentation material storage state model based on the fermentation material humidity and fermentation material accumulation thickness in the fermentation tank and output the fermentation material storage state coefficient; A fermentation tank environment state module, which can construct a fermentation tank environment state model based on the temperature in the fermentation tank and the air flow rate in the fermentation tank and output the fermentation tank environment state coefficient; The fermentation material mixing state module can construct a fermentation material mixing state model based on the stirring speed of the stirring device, the conveying speed of the conveying mechanism, and the flipping speed of the flipping mechanism, and output the fermentation material mixing state coefficient; Fermentation material fermentation state module: constructs a fermentation material fermentation state model based on the fermentation material storage state coefficient, the fermentation tank environment state coefficient and the fermentation material mixing state coefficient, and outputs the fermentation material fermentation state coefficient; The aperture adjustment module constructs an aperture adjustment model based on the standard aperture of the turning device, the particle size of the fermentation material, and the fermentation state coefficient of the fermentation material, and outputs the target aperture to control the turning mechanism to adjust its own aperture to the target aperture.

2. The turning device for biological bacteria fermentation according to claim 1, characterized in that: The flipping mechanism includes a No. 2 motor, a rotating orifice plate, a sliding orifice plate and a No. 3 motor; The No. 2 motor is fixedly connected to one of the sealing plates, the output shaft of the No. 2 motor is rotatably connected to the other sealing plate, the output shaft of the No. 2 motor is fixedly connected to multiple rotating orifice plates, the rotating orifice plates are all slidably connected to the sliding orifice plates, the rotating orifice plates are fixedly connected to the No. 3 motor, the output shaft of the No. 3 motor is threadedly connected to the sliding orifice plate, and the rotating orifice plate and the sliding orifice plate are both provided with filter holes.

3. The turning device for biological bacteria fermentation according to claim 1, characterized in that: The stirring device includes a No. 1 motor and a stirring rod. The No. 1 motor is fixedly connected to the center position of the bottom of the fermentation tank, and the output shaft of the No. 1 motor is fixedly connected to multiple stirring rods.

4. The turning device for biological bacteria fermentation according to claim 1, characterized in that: The conveying mechanism includes a conveying cylinder, a No. 4 motor, a rotating shaft and a push plate; A feed port is connected between the bottom of the conveying cylinder and the fermentation tank, a discharge pipe is connected to the top of the conveying cylinder, a No. 4 motor is fixedly connected to the bottom of the conveying cylinder, an output shaft of the No. 4 motor is fixedly connected to a rotating shaft, and a push plate is arranged along the vertical spiral of the rotating shaft.

5. The turning device for biological bacteria fermentation according to claim 1, characterized in that: The fermentation material state model is: S f =α1H-α2T; Among them, α1 represents the humidity weight coefficient, α1>0; α2 represents the thickness weight coefficient, α2>0; H represents the humidity of the fermentation material, α1 is dimensionless and ranges from [0,1]; T represents the fermentation material stacking index, which is the difference between the actual stacking thickness of the fermentation material and the basic stacking thickness of the fermentation material divided by the basic stacking thickness of the fermentation material.

6. The turning device for biological bacteria fermentation according to claim 5, characterized in that: The temperature information and air flow rate information in the fermentation tank are normalized by the maximum and minimum normalization formulas, and the temperature index and air flow rate index are obtained. The fermentation tank environmental state model is: S e =β1Temp+β2A f ; Among them, β1 represents the temperature weight coefficient, β2 represents the air flow rate weight coefficient, β1>0, β2>0, and β1+β2=1. In actual application, the values ​​of weight coefficients β1 and β2 can be determined through experimental data or production experience; Temp represents the temperature index, A f Indicates the air velocity index.

7. The turning device for biological bacteria fermentation according to claim 6, characterized in that: The real-time stirring speed of the stirring device, the real-time conveying speed of the conveying mechanism, and the real-time flipping speed of the flipping mechanism are divided by the corresponding maximum safe operating speed, and the stirring speed index, the conveying speed index, and the flipping speed index are obtained; the fermentation material mixing state model is: S m =γ1S S +γ2C s +γ3T s ; Wherein, γ1 represents the weight coefficient of stirring speed, γ1>0; γ2 represents the weight coefficient of conveying speed, γ2>0; γ3 represents the flipping speed weight coefficient, γ3>0, and γ1+γ2+γ3=1; S S Indicates the stirring speed index, C s Indicates the conveying speed index, T s Indicates the flipping speed index.

8. The turning device for biological bacteria fermentation according to claim 7, characterized in that: The fermentation state model of the fermentation material is: S0=δ1S f +δ2S e +δ3S m ; Among them, δ1 represents the fermentation state weight coefficient, and δ1>0; δ2 represents the environmental state weight coefficient, and δ2>0; δ3 represents the mixing state weight coefficient, and δ3>0, δ1+δ2+δ3=1; S0 represents the fermentation state coefficient of the fermentation material.

9. The turning device for biological bacteria fermentation according to claim 8, characterized in that: The aperture adjustment model is: A t =φ1A s +φ2D-φ3S0; Among them, φ1 represents the standard pore size weight coefficient, φ1>0; φ2 represents the particle size weight coefficient, φ2>0; φ3 represents the fermentation state weight coefficient, φ3>0; φ1, φ2 and φ3 can all be determined based on production experience. A s represents the standard pore size; D represents the particle size of the fermentation product; A t Indicates the target aperture, A t >D.

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