Full-automatic stainless steel fermentation tank

Abstract

The invention relates to the field of fermentation, and discloses a full-automatic stainless steel fermentation tank which comprises a tank body, an outer cavity, an inner cavity, a stirring structure, an inner pushing centering structure and a magnetomotive reset structure, the outer cavity is formed by connecting a first cavity pipe section and a second cavity pipe section, and a peripheral cavity is formed between the outer wall of the outer cavity and the inner wall of the tank body; a standing cavity is formed between the outer wall of the inner cavity and the inner wall of the first cavity pipe section, and a material fermentation cavity is formed inside the second cavity pipe section and the inner cavity; the inner presumption centering structure forms at least three supporting points on the periphery of the inner cavity and synchronously applies thrust to the inner cavity at the supporting points, and the magnetomotive reset structure drives the inner cavity to move in the direction close to the inner wall of the first cavity pipe section under the action of magnetic force when the thrust of the inner presumption centering structure to the inner cavity is relieved. Through the partitioned structural design of the inner cavity and the outer cavity, the independent standing cavity and the independent material fermentation cavity are constructed, parallel operation of the standing process and the stirring fermentation process is achieved, the fermentation continuity is guaranteed, and the overall fermentation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fermentation, in particular to a full-automatic stainless steel fermentation tank. BACKGROUND

[0002] As a key equipment in the fields of biological fermentation, food processing, pharmaceutical production, and organic fertilizer preparation, the performance of the fermentation tank directly determines the quality stability of the fermentation product, the production efficiency, and the comprehensive production cost. Currently, most of the stainless steel fermentation tanks on the market are equipped with a single stirring chamber, and the stirring structure needs to be continuously or intermittently operated to ensure the smooth progress of the material fermentation reaction.

[0003] During different fermentation stages of the actual fermentation process, stirring actions cannot be continuously carried out throughout the process, for example: For some solid-state fermentation or high-viscosity material fermentation scenarios, when the viscosity of the fermentation material is extremely high, a large resistance will be generated during stirring. If continuous stirring is performed, not only will the energy consumption of the equipment increase sharply, but the material may also be damaged due to excessive shearing, affecting the quality of the final fermentation product. For the inoculation and mixing stage of the material in the early fermentation stage, if stirring is continuously performed, the activity and survival rate of the bacteria will be reduced. Therefore, due to the limitations of material properties and fermentation stage requirements, the existing fermentation process generally adopts an intermittent stirring mode. However, pausing the stirring action will directly cause the interruption of the fermentation process, the stagnation of the material reaction, and a reduction in the overall fermentation efficiency. At the same time, under the structure of a single chamber, the stirring structure needs to drive all the materials in the chamber to move, which results in a large stirring load. This not only further increases the energy consumption, but also accelerates the wear of the stirring assembly, shortening the service life of the equipment.

[0004] In summary, the fermentation tank of the prior art has the technical problems of being unable to balance the fermentation efficiency and the requirements of different fermentation stages, reducing the efficiency due to intermittent stirring, and having a large stirring load. SUMMARY

[0005] Therefore, the present application provides a full-automatic stainless steel fermentation tank, which effectively solves the technical problems of the prior art, such as being unable to balance the fermentation efficiency and the requirements of different fermentation stages, reducing the efficiency due to intermittent stirring, and having a large stirring load.

[0006] To solve the above technical problems, the present application specifically provides the following technical solution: a full-automatic stainless steel fermentation tank, comprising: a tank body, which is provided with a feed inlet at the top and a discharge outlet at the bottom; an outer cavity, which is fixedly installed in the tank body, the outer cavity is connected by a first cavity tube segment at the middle position and second cavity tube segments at both ends, and an outer peripheral cavity is formed between the outer wall of the outer cavity and the inner wall of the tank body; An inner cavity body movably arranged in the first cavity tube segment, an inner wall of the inner cavity body and an inner wall of the first cavity tube segment form a static cavity, the second cavity tube segment and the inner cavity body are opposite and communicate with each other, and form a material fermentation cavity; A stirring structure is arranged in the tank body and in the material fermentation cavity, and the stirring structure stirs the material in the material fermentation cavity; An inner centering structure is arranged between the peripheral cavity and the static cavity, the inner centering structure forms at least three support points on the outer periphery of the inner cavity body, and synchronously applies a pushing force to the inner cavity body at the support points to push the inner cavity body to move to align the axis of the inner cavity body with the axis of the outer cavity body; A magnetic dynamic resetting structure is arranged between the peripheral cavity and the static cavity, and the magnetic dynamic resetting structure drives the inner cavity body to move towards the inner wall of the first cavity tube segment by magnetic force when the inner centering structure removes the pushing force to the inner cavity body; When the axis of the inner cavity body is aligned with the axis of the outer cavity body, the static cavity and the material fermentation cavity do not communicate with each other; When the inner cavity body approaches the inner wall of the first cavity tube segment, the static cavity and the material fermentation cavity communicate with each other, and the material enters the static cavity under the stirring action of the stirring structure.

[0007] Further, a sealing ring plate is arranged at each end of the inner cavity body, and the sealing ring plate is in sliding contact with the inner wall of the first cavity tube segment in the horizontal direction; The inner diameter of the first cavity tube segment is greater than the inner diameter of the second cavity tube segment, the outer diameter of the sealing ring plate is greater than the inner diameter of the second cavity tube segment and less than the inner diameter of the first cavity tube segment; When the axis of the inner cavity body is aligned with the axis of the outer cavity body, the sealing ring plate completely covers the gap between the inner cavity body and the first cavity tube segment, and when the inner cavity body approaches the inner wall of the first cavity tube segment, the sealing ring plate does not completely cover the gap between the inner cavity body and the first cavity tube segment, so that a material passing gap is formed between the inner cavity body and the first cavity tube segment.

[0008] Further, the inner centering structure includes a pushing bolt arranged through the first cavity tube segment in the horizontal direction and a sealing sleeve seat fixedly arranged on the outer wall of the first cavity tube segment; The pushing bolt and the sealing sleeve seat are in sliding fit, and the end of the pushing bolt supports the outer wall of the inner cavity body to form the support point; The peripheral cavity inner activity is provided with a rotating ring seat capable of rotating around the outer cavity axis, the inner wall of the tank body is provided with a limiting groove seat, the outer edge of the rotating ring seat is in sliding fit with the limiting groove seat, a curved long hole is arranged on the rotating ring seat, a sliding buckle is arranged in the curved long hole in a sliding mode, and the end of the sliding buckle is fixed to the end of the thrust bolt. Wherein, the distance from one end of the curved long hole to the outer cavity axis is greater than the distance from the other end of the curved long hole to the outer cavity axis.

[0009] Further, a driving cabin is mounted outside the tank body, a window is formed in the outer wall of the tank body, a sealing partition plate is mounted on the inner wall of the tank body opposite to the position of the window, and a through hole is formed in the sealing partition plate for the outer edge of the rotating ring seat to pass through. The outer edge of the rotating ring seat is provided with an annular rack, a driving motor is arranged in the driving cabin, a driving gear is arranged at the driving end of the driving motor, the driving gear is in mesh with the annular rack, and the driving gear rotates under the driving of the driving motor and drives the rotating ring seat to rotate through the annular rack. Wherein, a plurality of heat dissipation holes are formed in the bottom of the driving cabin.

[0010] Further, the magnetic dynamic reset structure comprises a first mounting ring seat mounted on the outer wall of the inner cavity and a second mounting ring seat mounted in the peripheral cavity; A plurality of first magnets are embedded in the outer periphery of the first mounting ring seat, and a plurality of second magnets are embedded in the inner periphery of the second mounting ring seat. The magnetic poles of all the first magnets at one end towards the second magnets are the same; Wherein, half of the second magnets are mounted on one side of the second mounting ring seat, and the magnetic poles of the end close to the first magnets are opposite to the corresponding magnetic poles of the first magnets; The other half of the second magnets are mounted on the other side of the second mounting ring seat, and the magnetic poles of the end close to the first magnets are the same as the corresponding magnetic poles of the first magnets.

[0011] Further, a fixed groove seat is mounted on the inner wall of the tank body, a sliding ring is mounted at the bottom of the second mounting ring seat, and the sliding ring is in sliding fit with the fixed groove seat; The top of the second mounting ring seat is provided with a plurality of direction grooves in a circumferential array, the grooves of adjacent direction grooves are connected, the groove bottom wall of the direction groove is inclined to one side, and forms an inclined groove wall connected with the groove of the direction groove on one side; The bottom of the rotating ring seat is provided with a bearing seat, a clamping bolt is rotatably installed on the bearing seat, the clamping bolt is rotatably installed on the bearing seat through a rotating shaft, and a torsional spring is arranged between the rotating shaft and the bearing seat. When the rotating ring seat rotates counterclockwise, the clamping bolt can slide out of the current limiting groove and slide into the next limiting groove along the inclined groove wall, so that the rotating ring seat and the second mounting ring seat are in a relative movement state. When the rotating ring seat rotates clockwise, the clamping bolt is clamped in the limiting groove away from the inclined groove wall, and the second mounting ring seat and the rotating ring seat are driven to move synchronously through the clamping effect.

[0012] Further, the bottom of the tank is provided with an air inlet pipe which communicates with the inside of the material fermentation cavity.

[0013] Further, the stirring structure comprises a stirring shaft and stirring blades arranged on the stirring shaft.

[0014] Compared with the prior art, the present application has the following advantages: By the partition structure design of the inner cavity and the outer cavity, an independent standing cavity and a material fermentation cavity are constructed, parallel operation of the standing process and the stirring and fermentation process is realized, part of the material completes the standing process in the standing cavity, and another part of the material can continue to be stirred and fermented in the fermentation cavity, the problem of interruption of the fermentation process and stagnation of the material reaction caused by traditional intermittent stirring is solved, the continuity of fermentation is ensured, and the overall fermentation efficiency is improved. By the material partition bearing design, the stirring structure only needs to drive part of the material in the material fermentation cavity, the running load of the stirring structure per unit time is reduced, the motor energy consumption is reduced, the wear of the stirring structure is reduced, and the protection of the equipment structure is realized. The partition structure of the inner cavity and the outer cavity and the flow design between the standing cavity and the material fermentation cavity realize personalized adaptation of each fermentation stage: in the early stage of fermentation, the standing cavity can provide a stable adaptation environment for the strain, and improve the survival rate and activity of the strain; for solid state fermentation or high viscosity material fermentation scene, the material can be dynamically allocated between the standing cavity and the fermentation cavity, the over-shearing damage of traditional continuous stirring to high viscosity material is avoided, and the quality stability of the final fermentation product is improved. The cooperation of the inner estimated heart structure and the magnetic dynamic reset structure realizes automatic adjustment of the communication state of the standing cavity and the material fermentation cavity, the regulation and control of periodic material exchange between the standing cavity and the material fermentation cavity can be completed without manual intervention, the function interference caused by the communication state out of control of the standing cavity and the material fermentation cavity is avoided, the stability of the fermentation process is improved, and the consistency of the fermentation effect of each stage is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description are only exemplary, and for those skilled in the field, other drawings can be obtained from the provided drawings without creative labor.

[0016] Figure 1 A perspective structural schematic view of a full-automatic stainless steel fermentation tank provided by the embodiment of the present application; Figure 2 A top view structural schematic view of a full-automatic stainless steel fermentation tank provided by the embodiment of the present application; Figure 3 A Figure 2 A plane sectional view in direction A-A; Figure 4 A Figure 2 A perspective sectional view in direction A-A; Figure 5 A Figure 4 A structural schematic view of a tank body part in the embodiment of the present application; Figure 6 A Figure 5 An enlarged structural schematic view of A; Figure 7 A structural schematic view of an outer cavity and an inner presumptive heart structure in the embodiment of the present application; Figure 8 A Figure 7 A top view structural schematic view of B; Figure 9 A Figure 8 A perspective sectional view in direction B-B; Figure 10 A Figure 9 An enlarged structural schematic view of B; Figure 11 A structural schematic view of an inner presumptive heart structure and a magnetic dynamic reset structure in the embodiment of the present application; Figure 12 A partial structural schematic view of the inner presumptive heart structure in the embodiment of the present application; Figure 13 A partial structural schematic view of the magnetic dynamic reset structure in the embodiment of the present application; Figure 14 A structural schematic view of a material passing gap formed between an inner cavity and an outer cavity in the embodiment of the present application.

[0017] The reference signs in the drawings represent the following respectively: 1. Tank body; 2. Inlet; 3. Outlet; 4. Outer cavity; 5. Inner cavity; 6. Stirring structure; 7. Internal centering structure; 8. Magnetic reset structure; 9. Outer cavity; 10. Settling cavity; 11. Material fermentation cavity; 12. Sealing ring plate; 13. Material passage gap; 14. Air inlet pipe; 41. First lumen segment; 42. Second lumen segment; 61. Stirring shaft; 62. Stirring blades; 71. Thrust bolt; 72. Sealing sleeve; 73. Rotating ring seat; 74. Limiting groove seat; 75. Curved elongated hole; 76. Sliding buckle; 77. Embedded groove; 78. Drive compartment; 79. Window; 710. Sealing partition; 711. Through-hole; 712. Drive motor; 713. Drive gear; 714. Heat dissipation hole; 81. First mounting ring seat; 82. Second mounting ring seat; 83. First magnet; 84. Second magnet; 85. Fixed slot seat; 86. Sliding ring; 87. Directional groove; 88. Inclined groove wall; 89. Bearing seat; 810. Clamp; 811. Rotating shaft. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1-5 As shown, the present invention provides a fully automatic stainless steel fermentation tank, including a tank body 1, an outer cavity 4, an inner cavity 5, a stirring structure 6, an inner pushing centering structure 7, and a magnetic reset structure 8. The outer cavity 4, the inner cavity 5, the stirring structure 6, the inner pushing centering structure 7, and the magnetic reset structure 8 are all disposed inside the tank body 1.

[0020] The tank body 1, outer cavity 4 and inner cavity 5 are all made of stainless steel, which has excellent corrosion resistance and high temperature resistance, and can be adapted to various fermentation material systems such as acid and alkaline, while ensuring the hygiene and safety of fermentation products.

[0021] The tank body 1 is provided with a feeding port 2 at the top and a discharging port 3 at the bottom, wherein the feeding port 2 is equipped with an automatic feeding valve with flow metering function, which can realize quantitative and uniform feeding of the fermentation material according to the preset parameters of the fermentation process, avoiding problems such as uneven mixing of the material, mutation of the survival environment of the strain, etc. caused by too fast or excessive feeding; the discharging port 3 adopts an anti-blocking structure design and is matched with a pneumatic diaphragm valve, which can not only realize centralized and rapid discharge of the material after fermentation, but also can be automatically opened after discharging is completed, facilitating subsequent cleaning operation. The feeding and discharging processes are automatically controlled by a PLC control system without manual intervention, ensuring stable feeding amount and no residual discharge.

[0022] As shown in Figure 3 The tank body 1 is provided with a feeding port 2 at the top and a discharging port 3 at the bottom, wherein the feeding port 2 is equipped with an automatic feeding valve with flow metering function, which can realize quantitative and uniform feeding of the fermentation material according to the preset parameters of the fermentation process, avoiding problems such as uneven mixing of the material, mutation of the survival environment of the strain, etc. caused by too fast or excessive feeding; the discharging port 3 adopts an anti-blocking structure design and is matched with a pneumatic diaphragm valve, which can not only realize centralized and rapid discharge of the material after fermentation, but also can be automatically opened after discharging is completed, facilitating subsequent cleaning operation. The feeding and discharging processes are automatically controlled by a PLC control system without manual intervention, ensuring stable feeding amount and no residual discharge.

[0023] The outer cavity 4 is fixedly installed in the tank body 1, and the coaxial requirement of the outer cavity 4 and the tank body 1 needs to be ensured. The outer cavity 4 is connected and composed of the first cavity tube segment 41 in the middle segment and the second cavity tube segments 42 at both ends. The outer wall of the outer cavity 4 and the inner wall of the tank body 1 form a closed peripheral cavity 9. The peripheral cavity 9 is filled with a heat insulation layer or is provided with heat exchange pipes, which can reduce the temperature exchange between the inside and outside of the tank body 1, and can also meet the temperature conditions required by the fermentation process in the inner cavity 4, thereby ensuring the temperature stability of the fermentation process.

[0024] The inner cavity 5 is movably installed in the first cavity tube segment 41. The outer wall of the inner cavity 5 and the inner wall of the first cavity tube segment 41 form an annular standing cavity 10. The second cavity tube segment 42 is opposite to and communicates with the inside of the inner cavity 5, and together form the material fermentation cavity 11.

[0025] The specific function division of the standing cavity 10 and the material fermentation cavity 11 is as follows: The standing cavity 10 provides a temporary standing environment for part of the material, which can make the material complete the processes such as strain domestication and product precipitation in a state without stirring disturbance; the material fermentation cavity 11 provides a stirring fermentation reaction space for the material, ensuring sufficient contact between the material and the strain; When the static chamber 10 and the material fermentation chamber 11 are in communication, the material in the static chamber 10 flows into the material fermentation chamber 11 under the action of stirring power, and part of the material in the material fermentation chamber 11 that has not been completely reacted can enter the static chamber 10, realizing bidirectional material exchange and ensuring the uniformity of material reaction; when the static chamber 10 and the material fermentation chamber 11 are not in communication, the static chamber 10 plays a static function, and the material fermentation chamber 11 independently completes the fermentation reaction process, avoiding mutual interference.

[0026] The stirring structure 6 is installed in the material fermentation chamber 11 and stirs the material in the material fermentation chamber 11. The stirring structure 6 includes a stirring shaft 61 and stirring blades 62 arranged on the stirring shaft 61. The stirring shaft 61 is driven to rotate by an externally connected rotating drive structure, and the stirring blades 62 are driven to rotate to stir the material.

[0027] The function of the stirring structure 6 is as follows: on the one hand, the rotation of the stirring structure 6 promotes the full contact between the material and the bacteria, accelerates the full fermentation reaction, and ensures the uniformity of the fermentation system temperature and concentration; on the other hand, when the static chamber 10 and the material fermentation chamber 11 are in communication, the fluid power generated by the stirring forms a circulating material flow field, which drives the material to flow rapidly in the circumferential direction and the axial direction, provides sufficient power support for the material exchange between the static chamber 10 and the material fermentation chamber 11, ensures the exchange efficiency and the uniformity of material mixing, and avoids the occurrence of material stagnation dead angles.

[0028] The inner centering structure 7 is arranged between the peripheral chamber 9 and the static chamber 10. The inner centering structure 7 forms at least three support points (in the form of a ring array) on the outer periphery of the inner cavity 5 and synchronously applies a pushing force to the inner cavity 5 at the support points, ensuring that the inner cavity 5 is uniformly stressed and then driven to move to align the axis of the inner cavity 5 with the axis of the outer cavity 4, thereby realizing centering and positioning.

[0029] The inner centering structure 7 can cause the axis of the inner cavity 5 to correspond to the axis of the outer cavity 4, avoiding the problem that when the axis of the inner cavity 5 deviates from the axis of the outer cavity 4, the static chamber 10 and the material fermentation chamber 11 are in communication, causing mutual influence between the materials.

[0030] The magnetic dynamic resetting structure 8 is arranged between the peripheral chamber 9 and the static chamber 10. When the inner centering structure 7 removes the pushing force applied to the inner cavity 5, the magnetic dynamic resetting structure 8 drives the inner cavity 5 to move towards the inner wall of the first chamber tube segment 41 by magnetic force.

[0031] The cooperative linkage process of the above-mentioned inner centering structure 7 and the magnetic dynamic resetting structure 8 is as follows: Under the preset program control of the PLC control system, the state switching of the static chamber 10 and the material fermentation chamber 11 is triggered periodically during the fermentation process; When it is needed to enter the static-fermentation partition working mode, the PLC control system sends a centering instruction, the inner push center structure 7 pushes the inner cavity 5 to move to the state that the own axis center is aligned with the outer cavity 4 axis center, at this time, the static cavity 10 and the material fermentation cavity 11 are in the non-communication state, the static cavity 10 and the material fermentation cavity 11 respectively perform the static and fermentation functions; When it is needed to carry out material exchange, the PLC control system sends a reset instruction, the inner push center structure 7 promotes the static cavity 10 and the material fermentation cavity 11 to communicate through the magnetic force, at the same time, the stirring structure 6 starts and adjusts to the preset material exchange rotating speed, under the flow field effect generated by the stirring, the material can smoothly flow between the static cavity 10 and the material fermentation cavity 11, and the material exchange is completed.

[0032] The application cooperates the inner push center structure 7 and the magnetic dynamic reset structure 8, controls the communication / non-communication state of the static cavity 10 and the material fermentation cavity 11, and finally achieves the periodic material exchange between the static cavity 10 and the material fermentation cavity 11 according to the fermentation process requirement, the whole process does not need manual operation, and the stability and reliability are very high.

[0033] In the actual fermentation process, the stirring action does not continuously carry out all the time, needs to be dynamically adjusted according to the material characteristics and the fermentation stage, and the specific application scene includes: The solid state fermentation or high viscosity material fermentation scene: when the material viscosity is high and causes the stirring resistance to be too large, the intermittent stirring mode (stirring is stopped after the preset time, and is restarted after the material fully reacts) is adopted, the high energy consumption can be effectively avoided, and the material damage caused by excessive shearing can be prevented; The material mixing stage in the initial fermentation stage: after the stirring, the material is uniformly mixed, and the stirring is stopped for a short time, the stable adaptation environment is provided for the strain, and the strain activity is improved.

[0034] Based on the above process requirement, the stirring action needs to be regularly stopped in the whole fermentation process, if the stirring is simply stopped, the material reaction will be stagnant, and then the fermentation efficiency is reduced, for this, the application realizes the independent partition and dynamic flow of the static cavity 10 and the material fermentation cavity 11 through the partition structure design of the inner cavity 5 and the outer cavity 4: part of the material completes the strain adaptation, product precipitation and other static processes in the static cavity 10, and the other part of the material still carries out the full stirring fermentation in the material fermentation cavity 11, the two work in parallel, the efficiency reduction problem in the traditional intermittent stirring mode is solved, on the one hand, the partition and dynamic flow design guarantees the fermentation continuity, does not affect the normal performance of the material fermentation stage, improves the overall fermentation efficiency, on the other hand, through the material partition bearing, the load of the stirring structure 6 in unit time is effectively reduced, the motor energy consumption is reduced, the wear is reduced, the equipment structure is protected, and the service life is prolonged; In addition, the partition and dynamic flow design can match the individualized requirement of the fermentation stage: In the initial stage of fermentation, part of the material provides a stable adaptation environment for the strain in the static chamber 10, improving the survival rate and activity of the strain.

[0035] The present application realizes the automatic adjustment of the communication state between the static chamber 10 and the material fermentation chamber 11 through the synergistic effect of the inner centering structure 7 and the magnetic dynamic resetting structure 8, without manual intervention, reducing the operation difficulty and human error, ensuring the orderly and efficient exchange of materials between the static chamber 10 and the material fermentation chamber 11, effectively avoiding the functional interference between the static chamber 10 and the material fermentation chamber 11, and improving the stability and flexibility of the fermentation process.

[0036] At the same time, the fermentation tank can adapt to different material types such as solid-state fermentation, liquid-state fermentation, high-viscosity material fermentation, and different industry fermentation needs such as food fermentation, pharmaceutical fermentation, and biological fertilizer fermentation by adjusting the static time, stirring speed, material exchange period and other parameters in the PLC control program, with wide applicability and personalized adaptation ability.

[0037] The movement of the inner cavity 5 on the horizontal plane can realize the adjustment of the communication state between the static chamber 10 and the material fermentation chamber 11, and the specific structure of the inner cavity 5 is as follows: As shown in Figure 3 , the inner cavity 5 is a tubular structure, and the two ends of the inner cavity 5 are provided with sealing ring plates 12, and the sealing ring plates 12 are in sliding contact with the inner wall of the first cavity tube section 41 in the horizontal direction. Among them, the inner diameter of the first cavity tube section 41 is greater than the inner diameter of the second cavity tube section 42, the outer diameter of the sealing ring plate 12 is greater than the inner diameter of the second cavity tube section 42, and less than the inner diameter of the first cavity tube section 41. When the axis of the inner cavity 5 is aligned with the axis of the outer cavity 4, the sealing ring plate 12 completely covers the gap between the inner cavity 5 and the first cavity tube section 41, and when the inner cavity 5 approaches the inner wall of the first cavity tube section 41, the sealing ring plate 12 does not completely cover the gap between the inner cavity 5 and the first cavity tube section 41, so that the inner cavity 5 and the first cavity tube section 41 form a material passing gap 13, and the material in the static chamber 10 can pass through the material passing gap 13 into the material fermentation chamber 11, and the material in the material fermentation chamber 11 can pass through the material passing gap 13 into the static chamber 10.

[0038] The inner centering structure 7 can form at least three support points on the outer periphery of the inner cavity 5, and simultaneously apply a pushing force to the inner cavity 5 at the support points, ensuring that the inner cavity 5 is uniformly stressed, and then driving the inner cavity 5 to move to its own axis aligned with the axis of the outer cavity 4, realizing centering and positioning, and the specific structure of the inner centering structure 7 is as follows: As shown in Figure 5 , Figure 6 , Figure 7 , Figure 8 , and Figure 12As shown, the inner estimated heart structure 7 includes a thrust bolt 71 arranged through the first cavity section 41 in the horizontal direction and a sealing sleeve 72 fixedly installed on the outer wall of the first cavity section 41; The thrust bolt 71 is in sliding fit with the sealing sleeve 72 (both smooth movement of the thrust bolt 71 and sealing protection are ensured, and material leakage is avoided), and the end of the thrust bolt 71 supports the outer wall of the inner cavity 5 to form a support point; A rotating ring seat 73 is movably arranged in the peripheral cavity 9, the rotating ring seat 73 can rotate around the axis of the outer cavity 4, a limiting groove seat 74 is installed on the inner wall of the tank body 1, the outer edge of the rotating ring seat 73 is in sliding fit with the limiting groove seat 74, the rotating track of the rotating ring seat 73 is accurately limited by the limiting groove seat 74 to ensure the rotating stability, a curved long hole 75 is arranged on the rotating ring seat 73, a sliding buckle 76 is slidably arranged in the curved long hole 75, the sliding buckle 76 is fixed on the end of the thrust bolt 71, an embedding groove 77 is arranged on the end of the thrust bolt 71 for the inner edge of the rotating ring seat 73 to embed, the inner edge of the rotating ring seat 73 is embedded in the embedding groove 77, and the rotating ring seat 73 and the thrust bolt 71 are adaptively connected; The distance from one end of the curved long hole 75 to the axis of the outer cavity 4 is greater than the distance from the other end of the curved long hole 75 to the axis of the outer cavity 4.

[0039] Based on the position and direction of the curved long hole 75, when the sliding buckle 76 is at different positions in the curved long hole 75, the distance from the sliding buckle 76 to the outer wall of the outer cavity 4 is different: when the sliding buckle 76 is at the end of the curved long hole 75 farther from the axis of the outer cavity 4, the distance from the sliding buckle 76 to the outer wall of the outer cavity 4 is farther; when the sliding buckle 76 is at the end of the curved long hole 75 closer to the axis of the outer cavity 4, the distance from the sliding buckle 76 to the outer wall of the outer cavity 4 is closer.

[0040] The working process is as follows: in the initial state, the sliding buckle 76 is at the end of the curved long hole 75 farther from the axis of the outer cavity 4, at this time the thrust bolt 71 is away from the outer wall of the inner cavity 5; when centering and positioning is needed, the rotating ring seat 73 is driven to rotate around the axis of the outer cavity 4, in the rotating process, the curved long hole 75 moves synchronously with the rotating ring seat 73, driving the sliding buckle 76 to relatively slide along the curved long hole 75, gradually moving from the end farther from the axis of the outer cavity 4 to the end closer to the axis of the outer cavity 4, in this process, the sliding buckle 76 drives the thrust bolt 71 to gradually move towards the inner cavity 5, the ends of the thrust bolts 71 synchronously apply thrust to the outer wall of the inner cavity 5, pushing the inner cavity 5 to move towards the axis of the outer cavity 4, and finally the axis of the inner cavity 5 coincides with the axis of the outer cavity 4, completing the centering and positioning; The rotating ring seat 73 reversely rotates, and in the rotating process, the curved long hole 75 moves synchronously with the rotating ring seat 73, drives the sliding buckle 76 to relatively slide along the curved long hole 75, gradually moves from one end closer to the axis of the outer cavity 4 to the other end farther away from the axis, and in the process, the sliding buckle 76 drives the thrust pin 71 to gradually move away from the inner cavity 5, and the thrust pins 71 gradually move away from the inner cavity 5 and release the thrust applied to the outer wall of the inner cavity 5.

[0041] The rotation of the rotating ring seat 73 can promote the movement of the inner cavity 5, and in order to further realize the rotation of the rotating ring seat 73, the application is designed as follows: As shown in Figure 1 , Figure 3 and Figure 5 , a driving cabin 78 is fixedly installed on the outer wall of the tank body 1, and a window 79 is formed in the outer wall of the tank body 1 corresponding to the position of the driving cabin 78; a sealing partition plate 710 is installed on the inner wall of the tank body 1 opposite to the window 79, and a through hole 711 adapted to the outer edge of the rotating ring seat 73 is formed in the sealing partition plate 710, the outer edge of the rotating ring seat 73 extends to one side of the driving cabin 78 through the through hole 711, which not only ensures the normal rotation of the rotating ring seat 73, but also realizes the isolation and sealing of the inner cavity of the tank body 1 and the driving cabin 78 through the sealing partition plate 710, so as to avoid the heat in the peripheral cavity 9 from entering the driving cabin 78.

[0042] An annular rack is arranged at the outer edge of the rotating ring seat 73 extending into the driving cabin 78, a driving motor 712 is fixedly installed in the driving cabin 78, a driving gear 713 is arranged on the output end of the driving motor 712, the driving gear 713 is engaged with the annular rack, and a gear transmission mechanism is formed.

[0043] In work, the driving motor 712 drives the driving gear 713 to rotate after starting, drives the rotating ring seat 73 to stably rotate around the axis of the outer cavity 4 through the engagement transmission of the gear and the rack, and provides stable power for the thrust driving of the inner thrusting core structure 7.

[0044] In addition, in order to ensure the stable operation of the driving motor 712, a plurality of evenly distributed heat dissipation holes 714 are formed in the bottom of the driving cabin 78. The heat generated in the working process of the driving motor 712 can be discharged in time through the heat dissipation holes 714, so as to avoid the damage of the motor due to overheating caused by the high temperature in the driving cabin 78, and prolong the service life of the driving assembly.

[0045] When the inner thrusting core structure 7 releases the thrust on the inner cavity 5, the magnetic dynamic resetting structure 8 drives the inner cavity 5 to move towards the inner wall of the first cavity tube segment 41 by magnetic force, and the specific structure of the magnetic dynamic resetting structure 8 is as follows: As shown in Figure 6 , Figure 7 , Figure 9 , Figure 10 andFigure 11 As shown in the drawings, the magnetic restoring structure 8 comprises a first mounting ring seat 81 mounted on the outer wall of the inner cavity 5 and a second mounting ring seat 82 mounted in the peripheral cavity 9; The first mounting ring seat 81 is embedded with a plurality of first magnets 83 on the outer periphery, and the second mounting ring seat 82 is embedded with a plurality of second magnets 84 on the inner periphery; The magnetic poles of all the first magnets 83 at one end towards the second magnets 84 are the same; Half of the second magnets 84 are mounted on one side of the second mounting ring seat 82, and the magnetic poles of the end close to the first magnets 83 are opposite to the corresponding magnetic poles of the first magnets 83; The other half of the second magnets 84 are mounted on the other side of the second mounting ring seat 82, and the magnetic poles of the end close to the first magnets 83 are the same as the corresponding magnetic poles of the first magnets 83.

[0046] In the above embodiment, the side of the second mounting ring seat 82 embedded with half of the second magnets 84 with the same magnetic poles is the repulsion side, and the other side embedded with half of the second magnets 84 with opposite magnetic poles is the attraction side.

[0047] In the absence of external force (i.e. the inner presumptive heart structure 7 is free of thrust), the magnetic force driving process is as follows: On the attraction side of the second mounting ring seat 82, the second magnets 84 generate magnetic attraction force on the first magnets 83; on the repulsion side of the second mounting ring seat 82, the second magnets 84 generate magnetic repulsion force on the first magnets 83; For the first mounting ring seat 81, one side is subjected to magnetic attraction force and the other side is subjected to magnetic repulsion force, and under the synergistic action of the magnetic forces in two different directions, the first mounting ring seat 81 drives the inner cavity 5 to move in a horizontal direction to a designated side, and finally makes the inner cavity 5 gradually close to the inner wall of the first cavity tube segment 41, completing the restoring action.

[0048] The relative positions of the attraction side and the repulsion side directly determine the direction of the resultant magnetic force acting on the first mounting ring seat 81, thereby controlling the movement direction of the inner cavity 5.

[0049] The end of the inner cavity 5 and the end of the second cavity tube segment 42 are both circular structures, as shown in the drawings, Figure 14 When the axis of the inner cavity 5 is offset from the axis of the second cavity tube segment 42, a crescent-shaped material passing gap 13 is formed at the bottom or the top, and if the material passing gap 13 is always fixed in the same direction, more material will be retained in the stationary cavity 10, resulting in that part of the material cannot flow smoothly into the material fermentation cavity 11. To solve this problem, the present application is designed as follows: As shown in the drawings, Figure 10 , Figure 12 and Figure 13As shown, the inner wall of the tank body 1 is provided with a fixed groove seat 85, and the bottom of the second mounting ring seat 82 is provided with a sliding ring 86 which is in sliding cooperation with the fixed groove seat 85; The top of the second mounting ring seat 82 is provided with a circumferential array of limiting grooves 87, the openings of adjacent limiting grooves 87 are connected, and the groove bottom wall of the limiting groove 87 is inclined to one side and forms an inclined groove wall 88 connected with the opening of the limiting groove 87 on one side. Meanwhile, the bottom of the rotating ring seat 73 is fixedly provided with a bearing seat 89, the clamping bolt 810 is rotatably installed on the bearing seat 89 through a rotating shaft 811, and a torsional spring is assembled between the rotating shaft 811 and the bearing seat 89, which provides the clamping bolt 810 with a reset elastic force to ensure that it is stably clamped in the limiting groove 87.

[0050] The linkage process of the above structure is as follows: when the rotating ring seat 73 rotates counterclockwise, the clamping bolt 810 can smoothly slide out of the current limiting groove 87 along the inclined groove wall 88 of the limiting groove 87 under the cooperation of the torsional spring, and slide into the adjacent next limiting groove 87, at this time, the rotating ring seat 73 and the second mounting ring seat 82 are in a relative motion state; when the rotating ring seat 73 rotates clockwise, the clamping bolt 810 will be clamped in the limiting groove 87 away from the inclined groove wall 88, and will drive the second mounting ring seat 82 and the rotating ring seat 73 to rotate synchronously through the clamping limiting action.

[0051] The forward rotation of the rotating ring seat 73 is defined as counterclockwise rotation (the rotation direction for centering and positioning), and the reverse rotation is defined as clockwise rotation (the rotation direction for releasing the centering), and the working process is as follows: Forward rotation stage: the rotating ring seat 73 rotates counterclockwise around the axis of the outer cavity 4, in this process, the sliding buckle 76 drives each thrust bolt 71 to move synchronously towards the inner cavity 5, the thrust bolt 71 applies a thrust force to the outer wall of the inner cavity 5, and pushes the inner cavity 5 to move towards the axis of the outer cavity 4 to complete the centering; at the same time, the clamping bolt 810 slides out of the current groove and slides into the next limiting groove 87 along the inclined groove wall 88 of the limiting groove 87, and the rotating ring seat 73 and the second mounting ring seat 82 keep relative motion, and the second mounting ring seat 82 keeps stationary under the constraint of the friction force of the fixed groove seat 85.

[0052] Reverse rotation stage: the rotating ring seat 73 rotates clockwise around the axis of the outer cavity 4, in this process, the sliding buckle 76 drives each thrust bolt 71 to gradually move away from the inner cavity 5, and releases the thrust force constraint on the inner cavity 5; at the same time, the clamping bolt 810 is clamped in the limiting groove 87 away from the inclined groove wall 88, and drives the second mounting ring seat 82 and the rotating ring seat 73 to rotate synchronously clockwise through the clamping action.

[0053] From the above process, the second mounting ring seat 82 only follows the synchronous rotation when the rotating ring seat 73 rotates counterclockwise, and remains stationary when the rotating ring seat 73 rotates clockwise. During each rotation of the rotating ring seat 73, the repulsion side and the suction side of the second mounting ring seat 82 will change positions with the rotation thereof. Since the relative positions of the repulsion side and the suction side determine the movement direction of the inner cavity 5, the rotation of the second mounting ring seat 82 can change the movement direction of the inner cavity 5 each time it is reset by the magnetic force, thereby achieving periodic adjustment of the formation position of the material passing gap 13, effectively eliminating the material stagnation dead angle in the static cavity 10, and ensuring sufficient and uniform exchange of materials between the static cavity 10 and the material fermentation cavity 11.

[0054] The above examples are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements shall also be considered to fall within the protection scope of the present application.

Claims

1. A fully automatic stainless steel fermentation tank, characterized in that, include: The tank (1) has a feed inlet (2) at the top and a discharge outlet (3) at the bottom. The outer cavity (4) is fixedly installed inside the tank (1). The outer cavity (4) is formed by connecting the first cavity tube section (41) in the middle position and the second cavity tube sections (42) at both ends. The outer wall of the outer cavity (4) and the inner wall of the tank (1) form an outer cavity (9). The inner cavity (5) is movably disposed within the first cavity section (41). A static cavity (10) is formed between the outer wall of the inner cavity (5) and the inner wall of the first cavity section (41). The second cavity section (42) and the inner cavity (5) are directly opposite and connected to each other, forming a material fermentation cavity (11). A stirring structure (6) is installed inside the tank (1) and located inside the material fermentation chamber (11). The stirring structure (6) stirs the material inside the material fermentation chamber (11). An inward centering structure (7) is provided between the outer cavity (9) and the stationary cavity (10). The inward centering structure (7) forms at least three support points on the outer periphery of the inner cavity (5) and applies a thrust to the inner cavity (5) at the support points to push the inner cavity (5) to move until its own axis is aligned with the axis of the outer cavity (4). A magnetic reset structure (8) is disposed between the peripheral cavity (9) and the stationary cavity (10). When the inner push centering structure (7) releases the push on the inner cavity (5), the magnetic reset structure (8) drives the inner cavity (5) to move towards the inner wall of the first cavity tube segment (41) by magnetic force. When the axis of the inner cavity (5) is aligned with the axis of the outer cavity (4), the static cavity (10) and the material fermentation cavity (11) are not connected. When the inner cavity (5) approaches the inner wall of the first cavity section (41), the static cavity (10) and the material fermentation cavity (11) circulate, and the material enters the static cavity (10) under the stirring action of the stirring structure (6).

2. The fully automatic stainless steel fermentation tank according to claim 1, characterized in that, The inner cavity (5) is provided with sealing ring plates (12) at both ends, and the sealing ring plates (12) slide in contact with the inner wall of the first cavity section (41) in the horizontal direction; Wherein, the inner diameter of the first cavity section (41) is greater than the inner diameter of the second cavity section (42), and the outer diameter of the sealing ring plate (12) is greater than the inner diameter of the second cavity section (42) and smaller than the inner diameter of the first cavity section (41); When the axis of the inner cavity (5) is aligned with the axis of the outer cavity (4), the sealing ring plate (12) completely covers the gap between the inner cavity (5) and the first cavity tube segment (41). When the inner cavity (5) approaches the inner wall of the first cavity tube segment (41), the sealing ring plate (12) does not completely cover the gap between the inner cavity (5) and the first cavity tube segment (41), so that a material passage gap (13) is formed between the inner cavity (5) and the first cavity tube segment (41).

3. The fully automatic stainless steel fermentation tank according to claim 2, characterized in that, The internal centering structure (7) includes a thrust bolt (71) that is horizontally disposed on the first cavity section (41) and a sealing sleeve (72) that is fixedly installed on the outer wall of the first cavity section (41). The thrust bolt (71) is slidably engaged with the sealing sleeve (72), and the end of the thrust bolt (71) supports the outer wall of the inner cavity (5) to form the support point; A rotating ring seat (73) is movably disposed in the outer cavity (9). The rotating ring seat (73) can rotate around the axis of the outer cavity (4). A limiting groove seat (74) is installed on the inner wall of the tank (1). The outer edge of the rotating ring seat (73) is slidably engaged with the limiting groove seat (74). A curved elongated hole (75) is provided on the rotating ring seat (73). A sliding buckle (76) is slidably disposed in the curved elongated hole (75). The sliding buckle (76) is fixed to the end of the thrust bolt (71). The end of the thrust bolt (71) is provided with a groove (77) for the inner edge of the rotating ring seat (73) to be inserted. The distance from one end of the curved elongated hole (75) to the axis of the outer cavity (4) is greater than the distance from the other end to the axis of the outer cavity (4).

4. The fully automatic stainless steel fermentation tank according to claim 3, characterized in that, A drive compartment (78) is installed outside the tank (1). A window (79) is opened on the outer wall of the tank (1). A sealing partition (710) is installed on the inner wall of the tank (1) opposite to the window (79). The sealing partition (710) has a through hole (711) for the outer edge of the rotating ring seat (73) to pass through. The outer edge of the rotating ring seat (73) is provided with an annular rack, and the drive chamber (78) is provided with a drive motor (712). The drive end of the drive motor (712) is provided with a drive gear (713). The drive gear (713) meshes with the annular rack. The drive gear (713) rotates under the drive of the drive motor (712) and drives the rotating ring seat (73) to rotate through the annular rack. The drive compartment (78) has several heat dissipation holes (714) at its bottom.

5. The fully automatic stainless steel fermentation tank according to claim 4, characterized in that, The magnetic reset structure (8) includes a first mounting ring seat (81) installed on the outer wall of the inner cavity (5) and a second mounting ring seat (82) installed in the outer cavity (9). The first mounting ring seat (81) has a plurality of first magnets (83) embedded on its outer periphery, and the second mounting ring seat (82) has a plurality of second magnets (84) embedded on its inner periphery. All the first magnets (83) have the same magnetic pole at one end facing the second magnet (84); Half of the second magnets (84) are mounted on one side of the second mounting ring (82), and the magnetic pole of the end of the second magnet (83) closest to the first magnet (83) is opposite to the magnetic pole of the corresponding end of the first magnet (83). The other half of the second magnets (84) are mounted on the other side of the second mounting ring (82), and the magnetic pole of the end of the second magnet (83) that is closer to the first magnet (83) is the same as the corresponding magnetic pole of the first magnet (83).

6. The fully automatic stainless steel fermentation tank according to claim 5, characterized in that, The inner wall of the tank (1) is equipped with a fixed groove seat (85), and the bottom of the second mounting ring seat (82) is equipped with a sliding ring (86), which slides in cooperation with the fixed groove seat (85). The second mounting ring seat (82) has a circumferential array of directional grooves (87) on its top. The groove openings of adjacent directional grooves (87) are connected. The bottom wall of the directional groove (87) is inclined to one side and forms an inclined groove wall (88) that is connected to the groove opening on one side of the directional groove (87). The bottom of the rotating ring seat (73) is provided with a bearing seat (89), and a bolt (810) is rotatably installed on the bearing seat (89). The bolt (810) is rotatably installed on the bearing seat (89) via a rotating shaft (811). A torsion spring is provided between the rotating shaft (811) and the bearing seat (89). When the rotating ring seat (73) rotates counterclockwise, the latch (810) can slide out of the current limiting groove (87) along the inclined groove wall (88) and slide into the next limiting groove (87), so that the rotating ring seat (73) and the second mounting ring seat (82) are in a state of relative movement; When the rotating ring seat (73) rotates clockwise, the latch (810) is locked in the limiting groove (87) on the side away from the inclined groove wall (88), and drives the second mounting ring seat (82) to move synchronously with the rotating ring seat (73) through the locking action.

7. The fully automatic stainless steel fermentation tank according to claim 1, characterized in that, The bottom of the tank (1) is provided with an air inlet pipe (14), which is connected to the inside of the material fermentation chamber (11).

8. The fully automatic stainless steel fermentation tank according to claim 1, characterized in that, The stirring structure (6) includes a stirring shaft (61) and stirring blades (62) disposed on the stirring shaft (61).

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