Horizontal rotary fermentation equipment and fermentation method for food processing

Abstract

The present invention discloses a horizontal rotary fermentation device and fermentation method for food processing, which relates to the field of food processing and fermentation technology, including a tank body, a feed hopper, a discharge pipe, a barometer, an exhaust pipe and a pressure relief valve, wherein the circumferential outer wall of the tank body is fixedly connected to a fixing frame, a support frame is provided below the tank body, the fixing frame is fixedly connected to the support frame, and a first stirring component and a second stirring component for fully fermenting the material are provided inside the tank body. In the present invention, by providing the first stirring component and the second stirring component, under the synergistic effect of the driving force provided by the power component and the changing of the stirring direction by the reversing component, efficient stirring of the material is achieved, creating good conditions for fermentation, and the provision of the defoaming component effectively solves the problem of excessive bubbles affecting the fermentation quality during stirring in traditional horizontal fermentation equipment, thereby ensuring the stability and efficiency of the food processing and fermentation process as a whole.

Description

Technical Field

[0001] The present invention relates to the technical field of food processing and fermentation, and in particular to a horizontal rotary fermentation device and a fermentation method for food processing. Background Art

[0002] In the food processing industry, horizontal rotary fermentation equipment is particularly suitable for large-scale production due to its more efficient space utilization. It allows for the placement of more equipment within limited plant space, increasing overall production capacity. It also achieves relatively uniform mixing of materials, providing a relatively stable and suitable fermentation environment for microorganisms. Consequently, it has found widespread application in numerous food and beverage production processes. From bread fermentation and wine brewing to the production of various fermented beverages, horizontal rotary fermentation equipment plays a key role.

[0003] However, the existing horizontal fermentation equipment has exposed a more prominent problem during actual operation. When the equipment is stirring, a large amount of air will inevitably be drawn into the material system, thereby generating a large number of bubbles. The presence of these bubbles has a multi-faceted negative impact on the fermentation quality of food and beverages. On the one hand, the generation of bubbles will interfere with the uniformity of the material, resulting in uneven distribution of microorganisms in the material, causing some areas of microorganisms to grow and reproduce too fast, while other areas are relatively lagging behind, ultimately affecting the consistency and stability of the fermentation. On the other hand, bubbles will change the mass transfer and heat transfer processes inside the material, such as hindering the effective transmission of nutrients to microorganisms, affecting the smooth progress of the fermentation reaction, and reducing fermentation efficiency. For some foods and beverages that have strict requirements on fermentation conditions, such as high-end wines and high-quality yogurts, the presence of bubbles may even interfere with the generation of flavor substances, seriously damaging the original taste and flavor of the product, and reducing the quality and market competitiveness of the product. Therefore, there is an urgent need for a horizontal rotary fermentation equipment and fermentation method for food processing to solve the above problems. Summary of the Invention

[0004] In response to the problems in the related art, the present invention proposes a horizontal rotary fermentation device and a fermentation method for food processing to overcome the above-mentioned technical problems existing in the existing related art.

[0005] The technical solution of the present invention is achieved as follows:

[0006] A horizontal rotary fermentation device for food processing, comprising a tank body, a feed hopper, a discharge pipe, a pressure gauge, an exhaust pipe, and a pressure relief valve; a fixing frame is fixedly connected to the circumferential outer wall of the tank body; a support frame is provided below the tank body, the fixing frame is fixedly connected to the support frame; a first stirring assembly and a second stirring assembly are provided inside the tank body for fully fermenting the material;

[0007] One end of the tank body is provided with a reversing assembly which makes the stirring directions of the first stirring assembly and the second stirring assembly opposite to each other;

[0008] The support frame is provided with a power assembly for driving the first stirring assembly, the second stirring assembly and the reversing assembly to work;

[0009] The power assembly includes a motor fixedly connected to the bottom of the support frame, the output end of the motor is fixedly connected to a first transmission wheel, the first transmission wheel is connected to a transmission belt, and the first transmission wheel is connected to a second transmission wheel through the transmission belt;

[0010] The interior of the tank is provided with a defoaming component for preventing a large number of bubbles from being generated during stirring, and the defoaming component is arranged on one side of the second stirring component.

[0011] Through the above technical solution: a system integrating multiple functions such as material stirring, fermentation environment optimization and bubble elimination is constructed, in which the tank body serves as the core bearing component, and the first stirring component and the second stirring component arranged inside it, with the driving force provided by the power component and the synergistic effect of changing the stirring direction by the reversing component, realize efficient stirring of the material and create good conditions for fermentation. The setting of the defoaming component effectively solves the problem of excessive bubbles affecting the fermentation quality during stirring in traditional horizontal fermentation equipment, thereby ensuring the stability and efficiency of the food processing and fermentation process as a whole.

[0012] Furthermore, the reversing assembly includes a rotating column fixedly connected to the inner circumferential wall of the second transmission wheel, the outer circumferential wall of the rotating column is fixedly connected to the second helical gear, the second helical gear is meshed with the first helical gear, the inner circumferential wall of the first helical gear is fixedly connected to the rotating shaft, the outer circumferential wall of the rotating shaft is fixedly connected to the third helical gear, the third helical gear is meshed with the fourth helical gear, the diameter of the fourth helical gear is smaller than the diameter of the second helical gear, the outer wall of one end of the tank body is fixedly connected to a protective shell, the inner circumferential wall of the protective shell is fixedly connected to a horizontal plate, and the rotating shaft is rotatably connected to the horizontal plate.

[0013] Through the above technical solution: through the multi-gear transmission reversing design, not only the structure is compact, but also the speed ratio can be flexibly adjusted according to the diameter difference between the fourth bevel gear and the second bevel gear to meet the diverse requirements of different food fermentation processes for stirring speed and direction.

[0014] Furthermore, the first stirring component includes spiral blades fixedly connected to the circumferential outer wall of the rotating cylinder, and the spiral blades are distributed at equal distances on the circumferential outer wall of the rotating cylinder.

[0015] Through the above technical solution: since the spiral blades are evenly distributed on the outer wall of the rotating cylinder, the material can be continuously transported along the axial direction of the tank body during its rotation. This axial transportation method allows the material to be continuously turned and mixed in the tank body, avoiding the sedimentation and agglomeration of the material at the bottom of the tank body, and effectively improving the macroscopic distribution uniformity of the material in the tank body.

[0016] Furthermore, the second stirring assembly includes a rotating tube fixedly connected to the inner circumferential wall of the fourth bevel gear, the outer circumferential wall of the rotating tube located inside the tank body is fixedly connected to a fixed tube, the outer circumferential wall of the fixed tube is fixedly connected to second connecting columns distributed in a circular pattern at equal distances, and the second connecting column is fixedly connected to the end away from the fixed tube with a second agitator, and the angle between the second agitator and the horizontal direction is 35°-45°.

[0017] Through the above technical solution: when the second agitator rotates, the material will not only be stirred in the circumferential direction, but also flow in the oblique direction. This oblique flow expands the stirring coverage, promotes the exchange between the upper and lower materials in the tank, and effectively reduces the stirring dead angle. At the same time, the oblique stirring force can produce a more complex force on the material and enhance the mixing effect of the material. In addition, during the flow of the material, the second agitator can exert an oblique impact force on the rising bubbles, which helps to break the bubbles and reduce the interference of the bubbles on the fermentation process.

[0018] Furthermore, the cross section of the second agitator is conical, and the inner circumferential wall of the second agitator is provided with dispersion grooves which are equidistantly distributed in a circular pattern, and the dispersion grooves pass through one end of the second agitator.

[0019] Through the above technical solution: when the second agitator rotates, local eddies and turbulences will be formed in the material in the tank. These complex flow field structures not only further enhance the dispersion effect of the material, but also have a strong tearing and crushing effect on the bubbles generated during the stirring process. When the material passes through the dispersion tank, the bubbles are subjected to high-speed impact and shearing by the surrounding materials, and the bubble walls are torn, thereby achieving the purpose of defoaming, ensuring the stability of the material system during the fermentation process, and helping to improve the fermentation quality.

[0020] Furthermore, the circumferential outer wall of the second agitator is fixedly connected to the first agitator, the first agitator and the second agitator are vertically arranged, the first agitator and the second agitator are connected, and the inlet end of the first agitator has the same spiral direction as the spiral blade.

[0021] Through the above technical solution, the material is subjected to various forms of stirring when passing through agitators of different structures, which further enhances the mixing efficiency of the material. At the same time, the first agitator and the second agitator work together to have a stronger processing ability for the material and bubbles, effectively improving the overall effect of the fermentation process.

[0022] Furthermore, the first agitator includes an expansion portion, a contraction portion, and a narrow tube portion, the narrow tube portion is fixedly connected to the second agitator, and a port diameter of the expansion portion is larger than a port diameter of the narrow tube portion.

[0023] Through the above technical solution: the efficiency and effect of material mixing are improved, providing a better material mixing basis for subsequent fermentation reactions.

[0024] Furthermore, a bearing seat is fixedly connected to the circumferential outer wall of the rotating tube, and the bearing seat is fastened to the inner wall of the tank body through a reinforcing rod, and one end of the rotating column passes through the interior of the rotating tube.

[0025] Through the above technical solution: it is ensured that the first stirring component and the second stirring component do not interfere with each other during the relative movement, each plays its stirring function, and cooperates to complete the efficient stirring of the material, thereby improving the reliability and stability of the equipment operation.

[0026] Furthermore, the defoaming component includes a first connecting column fixedly connected to the circumferential outer wall of the rotating tube, the first connecting column is fixedly connected to a fixed frame at one end away from the rotating tube, and the inner walls on both sides of the fixed frame are provided with a sliding groove, the inner part of the sliding groove is slidably connected to a slider, and one side outer wall of the slider is fixedly connected to a connecting plate, and one side outer wall of the connecting plate is rotatably connected to a counterweight roller, the circumferential outer wall of the counterweight roller is fixedly connected to an inclined rod, and the end of the inclined rod away from the counterweight roller is fixedly connected to a floating plate, and the bottom outer wall of the floating plate is provided with teeth distributed at equal distances.

[0027] Through the above technical solution: it can cooperate with the defoaming function of the second agitator during the stirring process, eliminate the bubbles generated during the fermentation process from different positions and angles, and avoid the negative impact of bubbles on microbial distribution, material mass transfer and heat transfer, and flavor substance generation in multiple aspects, thereby effectively ensuring the quality of the fermented products.

[0028] A fermentation method for food processing, applied to the horizontal rotary fermentation equipment for food processing described in the above embodiment, comprises the following steps:

[0029] S1: First, the material is added into the tank through the feed hopper, and the fermentation bacteria are added into the tank to start fermentation;

[0030] S2: Start the motor, the power assembly starts working, and drives the second transmission wheel to rotate through the transmission belt, thereby driving the rotating column and the rotating tube to rotate in the designed direction respectively. At the same time, the first stirring assembly and the second stirring assembly start stirring the material to ensure that the fermentation process is fully carried out;

[0031] S3: When the material fermentation is completed, the motor is stopped, the stirring component stops working, the discharge pipe is opened, and the fermented material is discharged from the tank for subsequent processing.

[0032] Beneficial effects of the present invention:

[0033] The present invention provides a horizontal rotary fermentation equipment and fermentation method for food processing. Under the drive of a motor, a first stirring component and a second stirring component are operated in opposite directions through a series of transmission components. This unique design allows the material to form complex and strong convection in the tank body, which not only achieves uniform mixing at the macro level, but also promotes more complete mixing of materials at the micro level. At the same time, the entire stirring process accelerates the mass transfer rate between materials, thereby optimizing the environment for the fermentation reaction inside the tank body. For example, the axial conveying of the material by the spiral blades, combined with the multi-angle stirring of the material by the second stirring component, effectively prevents the material from settling and agglomerating, provides a stable and uniform material basis for fermentation, and significantly improves the consistency and stability of the fermentation.

[0034] The present invention provides a horizontal rotary fermentation equipment and fermentation method for food processing. By setting a special expansion tube part, contraction part and narrow tube part structure of the first agitator, the flow of materials can be accelerated, so that the materials can enter the second agitator more efficiently, the material mixing efficiency is enhanced, and the fermentation reaction is strongly promoted. The second agitator is conical and forms an angle of 35°-45° with the horizontal direction. During rotation, the material flows obliquely, which expands the stirring coverage range and reduces the stirring dead angle. The dispersion tank inside the second agitator forms local eddies and turbulence, which can not only enhance the dispersion of the materials, but also have a strong tearing and crushing effect on the foam. While improving the material mixing effect, it effectively solves the problem of bubbles interfering with fermentation and ensures the fermentation quality.

[0035] The present invention provides a horizontal rotary fermentation equipment and fermentation method for food processing. During the operation of the rotating tube, the fixed frame is driven to rotate. When the fixed frame rotates to above the material liquid surface, the counterweight roller descends by its own gravity until the float plate contacts the material liquid surface. At this time, the impact force generated by the descending float plate acts on the material liquid surface through the bottom tooth groove, which can quickly puncture the foam accumulated on the liquid surface, and cooperate with the defoaming function of the second agitator to eliminate bubbles generated in the fermentation process from different angles and directions, avoiding the negative impact of bubbles on microbial distribution, mass transfer and heat transfer, and flavor substance generation, thereby improving the quality of the produced products. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 It is a schematic diagram of the overall front structure of the present invention.

[0038] Figure 2 This is a schematic diagram of the overall front structure of the protective shell after it is disassembled in the present invention.

[0039] Figure 3 This is a schematic diagram of the overall structure of the protective shell after being disassembled in the present invention when viewed from above.

[0040] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0041] Figure 5 It is a schematic diagram of the internal structure of the tank body of the present invention.

[0042] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0043] Figure 7 It is an enlarged structural schematic diagram of the first stirring component, the second stirring component and the defoaming component of the present invention.

[0044] Figure 8 This is a schematic diagram of the disassembled structure of the first stirring component, the second stirring component and the defoaming component of the present invention.

[0045] Figure 9 For the present invention Figure 8 Schematic diagram of the enlarged structure at point C in the middle.

[0046] In the picture:

[0047] 1. Tank; 2. Feed hopper; 3. Support frame; 4. Fixed frame; 5. Protective shell; 6. Drive belt; 7. First drive wheel; 8. Motor; 9. Second drive wheel; 10. Rotating column; 11. First helical gear; 12. Second helical gear; 13. Third helical gear; 14. Rotating shaft; 15. Horizontal plate; 16. Fourth helical gear; 17. Rotating pipe; 18. Discharge pipe; 19. Spiral blade; 20. First agitator; 2001, expansion section; 2002, contraction section; 2003, narrow tube section; 21, second agitator; 22, dispersion tank; 23, first connecting column; 24, fixing frame; 25, floating plate; 26, tooth groove; 27, counterweight roller; 28, connecting plate; 29, slide; 30, bearing seat; 31, reinforcement rod; 32, fixing pipe; 33, second connecting column; 34, pressure gauge; 35, exhaust pipe; 36, pressure relief valve. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention are within the scope of protection of the present invention.

[0049] See also Figures 1-9 A horizontal rotary fermentation device for food processing includes a tank body 1, a feed hopper 2, a discharge pipe 18, a pressure gauge 34, an exhaust pipe 35, and a pressure relief valve 36. A fixing frame 4 is fixedly connected to the circumferential outer wall of the tank body 1. A support frame 3 is provided below the tank body 1 and is fixedly connected to the fixing frame 4. A first stirring assembly and a second stirring assembly for fully fermenting the material are provided inside the tank body 1.

[0050] A reversing assembly is provided at one end of the tank body 1 to make the stirring directions of the first stirring assembly and the second stirring assembly opposite to each other;

[0051] The support frame 3 is provided with a power assembly for driving the first stirring assembly, the second stirring assembly and the reversing assembly to work;

[0052] The power assembly includes a motor 8 fixedly connected to the bottom of the support frame 3, the output end of the motor 8 is fixedly connected to the first transmission wheel 7, the first transmission wheel 7 is connected to the transmission belt 6, and the first transmission wheel 7 is connected to the second transmission wheel 9 through the transmission belt 6;

[0053] The interior of the tank body 1 is provided with a defoaming component for preventing a large amount of bubbles from being generated during stirring. The defoaming component is arranged on one side of the second stirring component.

[0054] Preferably, the reversing assembly includes a rotating column 10 fixedly connected to the inner circumferential wall of the second transmission wheel 9, the outer circumferential wall of the rotating column 10 is fixedly connected to the second bevel gear 12, the second bevel gear 12 is meshed with the first bevel gear 11, the inner circumferential wall of the first bevel gear 11 is fixedly connected to the rotating shaft 14, the outer circumferential wall of the rotating shaft 14 is fixedly connected to the third bevel gear 13, the third bevel gear 13 is meshed with the fourth bevel gear 16, the diameter of the fourth bevel gear 16 is smaller than the diameter of the second bevel gear 12, the outer wall of one end of the tank body 1 is fixedly connected to the protective shell 5, the inner circumferential wall of the protective shell 5 is fixedly connected to the transverse plate 15, the rotating shaft 14 is rotatably connected to the transverse plate 15, the first transmission wheel 7 is driven to rotate by the motor 8, and the second transmission wheel 9 is operated by the transmission belt 6, and the second transmission wheel 9 drives the rotating column 10 and the fixed The second bevel gear 12 on its outer wall rotates, and the second bevel gear 12 meshes with the first bevel gear 11 to realize the first steering of power. The first bevel gear 11 drives the third bevel gear 13 to rotate through the rotating shaft 14, and the third bevel gear 13 meshes with the fourth bevel gear 16, so that the fourth bevel gear 16 finally drives the rotating tube 17 to rotate, and the rotation direction is opposite to the rotating column 10. This multi-gear transmission reversing design is not only compact in structure, but also can flexibly adjust the speed ratio according to the diameter difference between the fourth bevel gear 16 and the second bevel gear 12 to meet the diverse requirements of different food fermentation processes for stirring speed and direction. At the same time, the protective shell 5 and the horizontal plate 15 provide stable support and protection for the gear transmission to prevent dust, debris and the like from interfering with the transmission process, thereby ensuring the stability and reliability of the equipment operation.

[0055] Preferably, the first stirring component includes a spiral blade 19 fixedly connected to the circumferential outer wall of the rotating column 10, and the spiral blades 19 are distributed at equal distances on the circumferential outer wall of the rotating column 10. When the rotating column 10 rotates under the drive of the power component, the spiral blades 19 rotate accordingly. Since the spiral blades 19 are distributed at equal distances on the circumferential outer wall of the rotating column 10, the material can be continuously transported axially along the tank body 1 during its rotation. This axial conveying method allows the material to be continuously turned and mixed in the tank body 1, avoiding the sedimentation and agglomeration of the material at the bottom of the tank body 1, and effectively improving the macroscopic distribution uniformity of the material in the tank body 1.

[0056] Preferably, the second stirring assembly includes a rotating tube 17 fixedly connected to the inner wall of the circumference of the fourth bevel gear 16, and the outer wall of the circumference of the rotating tube 17 inside the tank body 1 is fixedly connected to the fixed tube 32, and the outer wall of the circumference of the fixed tube 32 is fixedly connected to the second connecting column 33 distributed in a circular shape with equal distances, and the end of the second connecting column 33 away from the fixed tube 32 is fixedly connected to the second agitator 21, and the angle between the second agitator 21 and the horizontal direction is 35°-45°. Under the action of the reversing assembly, the rotating tube 17 and the rotating column 10 rotate in opposite directions, and the fixed tube 32, the second connecting column 33 and the second agitator 21 rotate with the rotating tube 17. They rotate together, and the second agitator 21 forms an angle of 35°-45° with the horizontal direction, so that when the second agitator 21 rotates, the material will not only be stirred in the circumferential direction, but also flow in the oblique direction. This oblique flow expands the stirring coverage, promotes the exchange between the upper and lower materials of the tank body 1, and effectively reduces the stirring dead angle. At the same time, the oblique stirring force can produce a more complex force on the material and enhance the mixing effect of the material. In addition, during the flow of the material, the second agitator 21 can exert an oblique impact force on the rising bubbles, which helps to break the bubbles and reduce the interference of the bubbles on the fermentation process.

[0057] Preferably, the cross-section of the second agitator 21 is conical, and the inner circumferential wall of the second agitator 21 is provided with dispersion grooves 22 distributed in a circular pattern at equal distances. The dispersion grooves 22 pass through one end of the second agitator 21. The conical cross-section of the second agitator 21 makes the linear speeds at different radial positions different during its rotation, thereby generating uneven shear force in the material. This uneven shear force can effectively break up the agglomerated material and improve the dispersion degree of the material. When the dispersion grooves 22 rotate in the second agitator 21, the material will form local eddies and turbulence in the groove. These complex flow field structures not only further enhance the dispersion effect of the material, but also have a strong tearing and crushing effect on the bubbles generated during the stirring process. When the material passes through the dispersion grooves 22, the bubbles are subjected to high-speed impact and shearing of the surrounding materials, and the bubble walls are torn, thereby achieving the purpose of defoaming, ensuring the stability of the material system during the fermentation process, and helping to improve the fermentation quality.

[0058] Preferably, the circumferential outer wall of the second agitator 21 is fixedly connected to the first agitator 20, the first agitator 20 and the second agitator 21 are vertically arranged, the first agitator 20 and the second agitator 21 are communicated, the inlet end of the first agitator 20 has the same spiral direction as the spiral blade 19, and the vertical communication between the first agitator 20 and the second agitator 21 provides a richer path for the mixing of materials. When the spiral blade 19 transports the material axially, since the inlet end of the first agitator 20 has the same spiral direction as the spiral blade 19, the material can smoothly enter the first agitator 20, and the special structure of the first agitator 20 accelerates and preliminarily mixes the material entering therein, and then the material enters the second agitator 21 connected thereto. This design enables the material to be subjected to various forms of stirring when passing through agitators with different structures, further enhancing the mixing efficiency of the material.

[0059] Preferably, the first agitator 20 includes an expansion portion 2001, a contraction portion 2002 and a narrow tube portion 2003, the narrow tube portion 2003 is fixedly connected to the second agitator 21, the port diameter of the expansion portion 2001 is larger than the port diameter of the narrow tube portion 2003, the unique expansion portion 2001, contraction portion 2002 and narrow tube portion 2003 structure of the first agitator 20 utilizes the principle of fluid mechanics to accelerate and mix the material, when the material enters from the expansion portion 2001, due to the larger diameter of the tube, the material can enter the first agitator 20 more smoothly, and in the expansion portion The material flow rate in the tube portion 2001 is relatively slow, which is conducive to the initial aggregation and distribution of the material. As the material enters the contraction portion 2002, the tube diameter gradually becomes smaller. According to the principle of fluid continuity, the material flow rate gradually accelerates. When it reaches the narrow tube portion 2003, the tube diameter is further reduced, and the material flow rate reaches the maximum, thereby realizing the acceleration of the material. The accelerated material enters the second agitator 21 at a high speed, and produces strong collision and mixing with the material in the second agitator 21, thereby improving the efficiency and effect of material mixing, and providing a better material mixing basis for subsequent fermentation reactions.

[0060] Preferably, the circumferential outer wall of the rotating tube 17 is fixedly connected to a bearing seat 30, and the bearing seat 30 is fastened to the inner wall of the tank body 1 through a reinforcing rod 31. One end of the rotating column 10 passes through the inside of the rotating tube 17. The bearing seat 30 provides stable support for the rotating tube 17, so that it can maintain good coaxiality and stability during rotation.

[0061] Preferably, the defoaming component includes a first connecting column 23 fixedly connected to the outer wall of the circumference of the rotating tube 17, the first connecting column 23 is fixedly connected to the fixed frame 24 at one end away from the rotating tube 17, and the inner walls of both sides of the fixed frame 24 are provided with a slide groove 29, and the inner wall of the slide groove 29 is slidably connected to a slider, and a connecting plate 28 is fixedly connected to the outer wall of one side of the slider, and a counterweight roller 27 is rotatably connected to the outer wall of one side of the connecting plate 28, and the outer wall of the circumference of the counterweight roller 27 is fixedly connected to an inclined rod, and the end of the inclined rod away from the counterweight roller 27 is fixedly connected to a floating plate 25, and the outer wall of the bottom of the floating plate 25 is provided with tooth grooves 26 distributed at equal distances. When the rotating tube 17 rotates, it drives the first connecting column 23 to rotate. A connecting column 23 and a fixed frame 24 rotate together. When the fixed frame 24 rotates to above the material liquid surface, the counterweight roller 27 will slide down along the slide groove 29 because its own gravity is greater than the centrifugal force generated by the rotation of the fixed frame 24. As the counterweight roller 27 slides down, the floating plate 25 is driven down by the inclined rod until the floating plate 25 contacts the material liquid surface. At this time, the tooth grooves 26 evenly distributed at the bottom of the floating plate 25 can quickly and effectively puncture the foam accumulated on the liquid surface under the action of the downward impact force. This defoaming method cooperates with the defoaming function of the second agitator 21 during the stirring process to eliminate bubbles generated during the fermentation process from different positions and angles.

[0062] A fermentation method for food processing, applied to the horizontal rotary fermentation equipment for food processing of the above embodiment, comprises the following steps:

[0063] Step 1: First, the material is added into the tank body 1 through the feed hopper 2, and the fermentation bacteria are added into the tank body 1 to perform fermentation;

[0064] Step 2: Start the motor 8, the power assembly starts working, and drives the second transmission wheel 9 to rotate through the transmission belt 6, thereby driving the rotating column 10 and the rotating tube 17 to rotate according to the designed direction. At the same time, the first stirring assembly and the second stirring assembly start stirring the material to ensure that the fermentation process is fully carried out;

[0065] Step 3: When the fermentation of the material is completed, the motor 8 is stopped, the stirring assembly stops working, the discharge pipe 18 is opened, and the fermented material is discharged from the tank body 1 for subsequent processing.

[0066] In summary, with the help of the above technical solution of the present invention, when in use, the staff adds the fermentation material into the tank body 1 through the feed hopper 2 and starts the motor 8. The motor 8 can drive the first transmission wheel 7 to rotate, and the first transmission wheel 7 can drive the second transmission wheel 9 to rotate through the transmission belt 6. At the same time, the second transmission wheel 9 is fixedly connected to the rotating column 10, and can thereby drive the rotating column 10 and the second bevel gear 12 on its outer wall to rotate. The circumferential outer wall of the second bevel gear 12 is meshed with the first bevel gear 11. Through a series of gear transmissions, the rotating column 10 can rotate at the same time. When the fourth bevel gear 16 drives the rotating tube 17 to rotate, wherein the rotation direction of the fourth bevel gear 16 is opposite to the rotation direction of the rotating column 10, so that the subsequent first stirring component and the second stirring component stir the material inside the tank body 1 in opposite directions, thereby significantly enhancing the mixing effect of the material inside the tank body 1, forming strong convection of the material in the complex flow path, achieving macro-uniform mixing, and the generated shear force and eddy current promote more uniform mixing at the micro level, while also accelerating the mass transfer rate, optimizing the fermentation reaction environment, preventing material precipitation and agglomeration, and maintaining material uniformity and stability;

[0067] When the first stirring component and the second stirring component inside the tank body 1 stir the materials at the same time, the spiral blade 19 in the first stirring component can transport and mix the materials along the axis of the tank body 1, and the second stirring component is located on one side of the spiral blade 19, so that the materials transported forward by the spiral blade 19 can fully enter the interior of the first stirrer 20, and the first stirrer 20 includes an expansion part 2001, a contraction part 2002 and a narrow tube part 2003, which can accelerate the processing of the materials entering the interior thereof, so that the materials can enter the interior of the second stirrer 21 at a faster speed to mix with other materials, further improving the mixing effect between the materials, which is beneficial to the subsequent fermentation reaction, and the second stirrer in the second stirring component The angle between 21 and the horizontal direction is 35°-45°, so that when the conical agitator rotates, the material flows obliquely, which not only expands the mixing coverage, promotes the exchange of materials between the upper and lower layers, and reduces the dead angle of mixing, but also effectively breaks the rising foam with oblique impact force. When its conical structure rotates, the linear speed at different radii is different, and the shear force generated can break up the agglomerated materials. The local eddies and turbulence formed by the circularly distributed dispersion grooves 22 at equal distances inside not only strengthen the dispersion of the materials, but also have a strong tearing and crushing effect on the foam. These complex stirring actions form a complex flow field in the tank, and the materials and foam are fully mixed and interact with each other, which accelerates the rupture and dissipation of the foam, improves the defoaming efficiency, and ensures the fermentation quality of the subsequent materials.

[0068] At the same time, during the rotation of the rotating tube 17, it can drive the first connecting column 23 and the fixed frame 24 to rotate together. When the fixed frame 24 rotates to above the material liquid level inside the tank body 1, the counterweight roller 27 in the fixed frame 24 will drop rapidly due to its own weight (it should be noted that the gravity of the counterweight roller 27 is greater than the centrifugal force generated when the fixed frame 24 rotates) until the float plate 25 below it contacts the material liquid surface. At this time, the impact force of the float plate 25 when it descends is fully exerted on the material liquid surface through the tooth groove 26, and can quickly puncture the foam accumulated on the material liquid surface, thereby achieving a good defoaming effect.

[0069] 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, improvements, etc. 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 horizontal rotary fermentation device for food processing, comprising a tank body (1), a feed hopper (2), a discharge pipe (18), a pressure gauge (34), an exhaust pipe (35) and a pressure relief valve (36), characterized in that: The outer circumferential wall of the tank body (1) is fixedly connected to a fixing frame (4), a support frame (3) is provided below the tank body (1), the fixing frame (4) is fixedly connected to the support frame (3), and a first stirring assembly and a second stirring assembly for fully fermenting the material are provided inside the tank body (1); One end of the tank body (1) is provided with a reversing assembly for making the stirring directions of the first stirring assembly and the second stirring assembly opposite to each other; The support frame (3) is provided with a power assembly for driving the first stirring assembly, the second stirring assembly and the reversing assembly to work; The power assembly comprises a motor (8) fixedly connected to the bottom of the support frame (3); an output end of the motor (8) is fixedly connected to a first transmission wheel (7); the first transmission wheel (7) is transmission-connected to a transmission belt (6); and the first transmission wheel (7) is transmission-connected to a second transmission wheel (9) via the transmission belt (6); The tank body (1) is provided with a defoaming assembly for preventing a large number of bubbles from being generated during stirring. The defoaming assembly is provided on one side of the second stirring assembly. The reversing assembly comprises a rotating column (10) fixedly connected to the inner circumferential wall of the second transmission wheel (9). The outer circumferential wall of the rotating column (10) is fixedly connected to a second helical gear (12). The second helical gear (12) is meshed with a first helical gear (11). The inner circumferential wall of the first helical gear (11) is fixedly connected to a rotating shaft (14). The outer circumferential wall of the rotating shaft (14) is fixedly connected to a third helical gear (13). The wheel (13) is meshed with a fourth helical gear (16), the diameter of the fourth helical gear (16) is smaller than the diameter of the second helical gear (12), the outer wall of one end of the tank body (1) is fixedly connected to a protective shell (5), the inner circumferential wall of the protective shell (5) is fixedly connected to a transverse plate (15), the rotating shaft (14) is rotatably connected to the transverse plate (15), the first stirring component includes a spiral blade (19) fixedly connected to the outer circumferential wall of the rotating column (10), the spiral blade (19) is distributed at equal distances on the outer circumferential wall of the rotating column (10), and the second stirring component The invention comprises a rotating tube (17) fixedly connected to the inner circumferential wall of the fourth bevel gear (16); the outer circumferential wall of the rotating tube (17) located inside the tank body (1) is fixedly connected to a fixed tube (32); the outer circumferential wall of the fixed tube (32) is fixedly connected to second connecting columns (33) distributed in a circular shape with equal distances; the end of the second connecting column (33) away from the fixed tube (32) is fixedly connected to a second agitator (21); the angle between the second agitator (21) and the horizontal direction is 35°-45°; the outer circumferential wall of the second agitator (21) is fixedly connected to the first agitator (20), the first agitator (20) and the second agitator (21) are arranged vertically, the first agitator (20) and the second agitator (21) are connected, the inlet end of the first agitator (20) is in the same spiral direction as the spiral blade (19), the first agitator (20) includes an expansion portion (2001), a contraction portion (2002) and a narrow tube portion (2003), the narrow tube portion (2003) is fixedly connected to the second agitator (21), and the port diameter of the expansion portion (2001) is larger than the port diameter of the narrow tube portion (2003).

2. A horizontal rotary fermentation equipment for food processing according to claim 1, characterized in that: The defoaming component includes a first connecting column (23) fixedly connected to the circumferential outer wall of the rotating tube (17), the first connecting column (23) is fixedly connected to a fixed frame (24) at one end away from the rotating tube (17), the inner walls of both sides of the fixed frame (24) are provided with a sliding groove (29), the interior of the sliding groove (29) is slidably connected to a slider, the outer wall of one side of the slider is fixedly connected to a connecting plate (28), the outer wall of one side of the connecting plate (28) is rotatably connected to a counterweight roller (27), the circumferential outer wall of the counterweight roller (27) is fixedly connected to an inclined rod, the end of the inclined rod away from the counterweight roller (27) is fixedly connected to a floating plate (25), and the bottom outer wall of the floating plate (25) is provided with tooth grooves (26) distributed at equal distances.

3. A horizontal rotary fermentation equipment for food processing according to claim 2, characterized in that: The cross section of the second agitator (21) is conical, and the inner circumferential wall of the second agitator (21) is provided with dispersion grooves (22) distributed in a circular pattern at equal distances, and the dispersion grooves (22) pass through one end of the second agitator (21).

4. The horizontal rotary fermentation equipment for food processing according to claim 3, characterized in that: A bearing seat (30) is fixedly connected to the circumferential outer wall of a rotating tube (17), and the bearing seat (30) is fastened to the inner wall of the tank body (1) through a reinforcing rod (31). One end of the rotating column (10) passes through the interior of the rotating tube (17).

5. A fermentation method for food processing, characterized in that: The fermentation equipment according to claim 4 comprises the following steps: S1: The staff first pre-processes the food materials to be fermented to ensure that the materials meet the fermentation requirements, and then adds the materials into the tank body (1) through the feed hopper (2). At the same time, according to the specific fermentation process, the staff accurately adds the appropriate amount of fermentation bacteria and other necessary additives. After the materials are added, the staff carefully checks whether the connections of the various parts of the equipment are firm, whether the seals are good, whether the motor (8) and the transmission device can operate normally, and whether the instruments are working properly. S2: Start the motor (8), the power assembly starts working, drives the second transmission wheel (9) to rotate through the transmission belt (6), and then drives the rotating column (10) and the rotating tube (17) to rotate according to the designed direction, and the first stirring assembly and the second stirring assembly start to stir the material. During the stirring process, the temperature, pressure and pH value parameters inside the tank body (1) are monitored in real time, and the operation of the defoaming assembly is observed at the same time to ensure that it can effectively eliminate the bubbles generated by the stirring, so as to ensure the stable fermentation process; S3: When the fermentation reaches the predetermined time and index, the motor (8) is stopped, the stirring assembly stops working, the discharge pipe (18) is opened, and the fermented material is discharged from the tank body (1).

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