Compound enzyme fermentation device for prefabricated vegetables

Abstract

The invention belongs to the technical field of food processing equipment, and particularly relates to a compound enzyme fermentation device for prefabricated vegetables, the compound enzyme fermentation device comprises a tank body, a servo motor, a rotary drum, a material guide pipe, an annular spraying pipe, a first rotating shaft, a second rotating shaft and a telescopic rod group, the rotary drum penetrates through the top of the tank body, the rotary drum is in transmission connection with an output shaft of the servo motor, one end of the material guide pipe penetrates into the rotary drum, and the other end of the material guide pipe is in transmission connection with the annular spraying pipe. The top end of the first rotating shaft is fixedly connected with the outer wall of the annular spraying pipe, the first rotating shaft is provided with a spiral stirring rotary blade, the second rotating shaft penetrates through the bottom of the tank body, mounting frames are fixed to the left side and the right side of the second rotating shaft correspondingly, and rollers are rotationally connected to the lower portions of the mounting frames; the upper and lower ends of the telescopic rod group are respectively in transmission connection with the drum and the second rotating shaft. The stirring mode can be adjusted, and the stirring requirements of different stages of the fermentation process are met; moreover, full contact between the compound enzyme and the culture solution can be promoted, and the fermentation quality is improved.

Description

Technical Field

[0001] This invention belongs to the field of food processing equipment technology, and specifically relates to a compound enzyme fermentation device for pre-prepared dishes. Background Technology

[0002] With technological advancements, the fermentation process for pre-prepared dishes has seen significant development. Pre-prepared dish compound enzyme fermentation technology refers to the technology that utilizes the fermentation action of microorganisms and employs various technical means to control the fermentation process, thereby enabling the large-scale production of fermented food products.

[0003] During fermentation, stirring is generally used to improve the efficiency of enzymatic reactions and the overall effect of fermentation. The stirring method of enzymes at different fermentation stages usually needs to be adjusted to optimize enzyme yield and activity and adapt to the physiological needs of microorganisms at different growth stages. The fermentation process is generally divided into early, middle and late stages, and the requirements for stirring are different at each stage: (1) Early stage of fermentation: At this stage, microorganisms are in the adaptation and rapid reproduction period, and need sufficient oxygen and even distribution of nutrients. The stirring intensity should be moderate to promote full contact between the cells and the culture medium and accelerate growth. (2) Middle stage of fermentation: Microbial metabolism is vigorous and enzyme synthesis reaches its peak. At this stage, the demand for oxygen and nutrients is the greatest, and metabolic heat production is significant. The stirring intensity needs to be appropriately increased to improve the dissolved oxygen rate, dissipate heat and prevent local nutrient depletion or metabolite accumulation. (3) Late stage of fermentation: Microbial growth slows down and enzyme synthesis tends to stabilize or begin to degrade. At this time, the stirring intensity should be reduced to reduce the damage of shear force to synthesized enzymes and avoid enzyme inactivation or product degradation due to vigorous stirring. Most existing fermentation devices can only adjust the stirring speed, and cannot flexibly adjust the stirring method according to the fermentation process of the enzyme. Especially in the early stage of fermentation, most nutrients are deposited at the bottom of the tank. Traditional stirring methods are not conducive to stirring up the nutrients at the bottom, which is not conducive to the full contact between the bacteria and the culture medium, thus affecting the fermentation quality.

[0004] Therefore, there is an urgent need for a compound enzyme fermentation device for pre-cooked dishes to solve the above problems. Summary of the Invention

[0005] To address the aforementioned deficiencies in existing technologies, this invention provides a compound enzyme fermentation device for pre-prepared vegetables, comprising a tank, a servo motor, a rotating drum, a feed pipe, an annular spray pipe, a first rotating shaft, a second rotating shaft, and a telescopic rod assembly. The tank has a feed inlet at its top and a discharge outlet at its bottom. The servo motor is positioned above and outside the tank. The rotating drum penetrates the top of the tank and is sealed and rotatably connected to the top wall of the tank. The top of the rotating drum is connected to the output shaft of the servo motor via a bevel gear transmission pair. One end of the feed pipe extends into the rotating drum, and its outer wall is sealed and rotatably connected to the inner wall of the rotating drum. The annular spray pipe is located below the rotating drum. The spray pipe is connected to the bottom of the rotating drum via a connecting pipe. Multiple spray heads are installed at the bottom of the annular spray pipe. The first rotating shaft is located below the annular spray pipe. The top of the first rotating shaft is fixedly connected to the outer wall of the annular spray pipe via a connecting rod. A spiral stirring blade is installed on the first rotating shaft. The second rotating shaft passes through the bottom of the tank and is sealed and rotatably connected to the bottom wall of the tank. Mounting frames are fixedly connected to the left and right sides of the top of the second rotating shaft, and several rollers are rotatably connected to the bottom of the mounting frames. The bottom of the rollers rests against the bottom wall of the tank. A telescopic rod assembly is installed on one side outside the tank. The upper and lower ends of the telescopic rod assembly are connected to the rotating drum and the second rotating shaft respectively.

[0006] Preferably, the bevel gear transmission pair includes a meshing horizontal bevel gear and a vertical bevel gear, with the horizontal bevel gear fixed to the outside of the rotating drum and the vertical bevel gear mounted on the output shaft of the servo motor.

[0007] Preferably, cleaning plates are provided on both the left and right sides of the first rotating shaft. The cleaning plates are fixedly connected to the first rotating shaft by fixing rods, and a cleaning brush is provided on the side of the cleaning plate near the side wall of the tank.

[0008] Specifically, the cleaning brush is used to remove residues adhering to the inner sidewall of the tank.

[0009] Preferably, the telescopic rod assembly includes a first telescopic rod and a second telescopic rod arranged vertically opposite each other. Both the first and second telescopic rods include an inner rod and an outer rod that are inner and outer sleeves. The outer rod is provided with a fixing bolt for fixing the telescopic length of the inner rod. The outer rod of the first telescopic rod is connected to the rotating drum via a first transmission device. The bottom end of the inner rod of the first telescopic rod is provided with a first connector, and the bottom of the first connector is provided with multiple grooves. The outer rod of the second telescopic rod is connected to the second rotating shaft via a second transmission device. The top end of the inner rod of the second telescopic rod is provided with a second connector, and the top of the second connector is provided with multiple protruding teeth that are the same number as and match the number of grooves.

[0010] Preferably, both the first transmission device and the second transmission device are belt pulley transmission structures.

[0011] Preferably, two fixed supports are fixedly installed at the upper and lower ends of the tank body, and the two fixed supports are rotatably connected to the outer rods of the first telescopic rod and the second telescopic rod, respectively.

[0012] Specifically, the fixed bracket is used to improve the stability of the outer rod of the first telescopic rod and the second telescopic rod during rotation.

[0013] Preferably, a discharge valve is provided at the discharge port at the bottom of the tank, and a feed pump and a solenoid valve are provided on the feed pipe.

[0014] Preferably, an air inlet is provided on the side of the tank, and an air outlet and an ultrasonic humidifier are provided on the top of the tank.

[0015] Preferably, a heating jacket is provided on the outer wall of the tank, and a temperature and humidity sensor is provided on the shell of the tank to detect the temperature and humidity inside the tank.

[0016] This invention also includes other components that enable the compound enzyme fermentation device for a pre-prepared dish to function properly, all of which are conventional techniques in the art. Furthermore, any devices or components not specified in this invention employ conventional techniques in the art.

[0017] The working principle of this invention is:

[0018] Before use, stretch the first telescopic rod and the second telescopic rod, and insert the protruding teeth of the second connector into the groove of the first connector to connect the two connectors together.

[0019] In use, the compound enzyme is added to the tank, and the culture medium is simultaneously introduced into the rotating drum through the feed pipe. The servo motor is started, driving the drum to rotate, which in turn drives the annular spray pipe to rotate. The culture medium is sprayed out through the spray nozzles, achieving uniform distribution. During the rotation of the annular spray pipe, the first rotating shaft rotates, which in turn stirs the compound enzyme and culture medium through the spiral stirring blades, achieving vertical mixing. Simultaneously, the rotating drum drives the second rotating shaft to rotate via a telescopic rod assembly, which in turn drives the drum to rotate, stirring up the nutrients deposited at the bottom of the tank. This greatly promotes fermentation in the early stages. To ensure sufficient contact between the compound enzyme and the culture medium, fresh and clean air is introduced through the air inlet. The tank is heated and kept warm by a heating jacket, and the humidity in the tank is increased by an ultrasonic humidifier, all working together to create a suitable fermentation environment for the compound enzyme. In the middle stage of fermentation, the stirring speed can be appropriately increased to promote microbial metabolism. When the fermentation reaches the later stage, the servo motor can be paused, the first and second telescopic rods can be retracted, the two connectors can be disconnected, and then the servo motor can be restarted to drive the first shaft to rotate. The speed can be appropriately reduced to decrease the stirring intensity and avoid enzyme inactivation or product degradation due to vigorous stirring.

[0020] After use, the cleaning plate can be rotated by a servo motor to sweep away the residue adhering to the inner wall of the tank, reducing the difficulty of manual cleaning and lowering the risk of cross-contamination.

[0021] The beneficial effects of this invention are: (1) The present invention can flexibly adjust the stirring mode through the tank, servo motor, rotating drum, material guide pipe, annular spray pipe, first rotating shaft, second rotating shaft and telescopic rod assembly to meet the stirring needs of different stages of fermentation.

[0022] (2) The present invention can stir up the nutrients deposited at the bottom of the tank by means of the second rotating shaft, the mounting frame and the roller, and with the stirring of the spiral stirring blade, promote the full contact between the compound enzyme and the culture medium and improve the fermentation quality.

[0023] (3) The present invention uses a cleaning plate and a cleaning brush to facilitate the cleaning of residues adhering to the inner side wall of the tank, reducing the difficulty of manual cleaning and reducing the risk of cross-contamination. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a partial structural diagram of the first connector and the second connector of the present invention.

[0027] In the diagram: 1. Tank body, 2. Servo motor, 3. Rotary drum, 4. Feed guide pipe, 5. Annular spray pipe, 6. First rotating shaft, 7. Second rotating shaft, 8. Feed inlet, 9. Discharge outlet, 10. Bevel gear transmission pair, 11. Feed pump, 12. Solenoid valve, 13. Connecting pipe, 14. Spray head, 15. Connecting rod, 16. Spiral stirring blade, 17. Cleaning plate, 18. Cleaning brush, 19. Mounting frame, 20. Roller, 21. First telescopic rod, 22. Second telescopic rod, 23. First connector, 24. Second connector, 25. Groove, 26. Protruding tooth, 27. Fixed bracket, 28. Air inlet, 29. Air outlet, 30. Ultrasonic humidifier, 31. Temperature and humidity sensor. Detailed Implementation

[0028] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely illustrative and is not intended to limit the scope of the invention. Any modifications, equivalent substitutions, or improvements made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the scope of protection of the present invention.

[0029] Example like Figure 1-2 As shown, this embodiment of the invention provides a compound enzyme fermentation device for pre-cooked vegetables, including a tank 1, a servo motor 2, a rotating drum 3, a feed pipe 4, an annular spray pipe 5, a first rotating shaft 6, a second rotating shaft 7, and a telescopic rod assembly. The top of the tank 1 is provided with a feed inlet 8, and the bottom of the tank 1 is provided with a discharge outlet 9, and a discharge valve is provided at the discharge outlet 9. The servo motor 2 is located above the outside of the tank 1. The rotating drum 3 penetrates through the top of the tank 1, and the rotating drum 3 is sealed and rotatably connected to the top wall of the tank 1. The top of the rotating drum 3 is connected to the output shaft of the servo motor 2 through a bevel gear transmission pair 10. The bevel gear transmission pair 10 includes a meshing horizontal bevel gear and a vertical bevel gear. The horizontal bevel gear is fixed to the outside of the rotating drum 3, and the vertical bevel gear is installed on the output shaft of the servo motor 2.

[0030] One end of the feed pipe 4 is inserted into the rotating drum 3, and the outer wall of the feed pipe 4 is sealed and rotatably connected to the inner wall of the rotating drum 3. The feed pipe 4 is equipped with a feed pump 11 and a solenoid valve 12. The annular spray pipe 5 is located below the rotating drum 3. The annular spray pipe 5 is connected to the bottom end of the rotating drum 3 through a connecting pipe 13. Multiple spray heads 14 are provided at the bottom of the annular spray pipe 5. The first rotating shaft 6 is located below the annular spray pipe 5. The top end of the first rotating shaft 6 is fixedly connected to the outer wall of the annular spray pipe 5 through a connecting rod 15. The first rotating shaft 6 is equipped with a spiral stirring blade 16. Cleaning plates 17 are provided on both the left and right sides of the first rotating shaft 6. The cleaning plates 17 are fixedly connected to the first rotating shaft 6 through a fixing rod. A cleaning brush 18 is provided on the side of the cleaning plate 17 near the side wall of the tank 1. It should be noted that the cleaning brush 18 is used to clean the residues adhering to the inner side wall of the tank 1.

[0031] The second rotating shaft 7 passes through the bottom of the tank body 1, and the second rotating shaft 7 is sealed and rotatably connected to the bottom wall of the tank body 1. The left and right sides of the top of the second rotating shaft 7 are respectively fixedly connected to the mounting frame 19, and several rollers 20 are rotatably connected to the bottom of the mounting frame 19. The bottom of the rollers 20 abuts against the bottom wall of the tank body 1.

[0032] The telescopic rod assembly is located on one side outside the tank body 1. The telescopic rod assembly includes a first telescopic rod 21 and a second telescopic rod 22 arranged vertically opposite each other. Both the first telescopic rod 21 and the second telescopic rod 22 include an inner rod and an outer rod that are inner and outer respectively. The outer rod is provided with a fixing bolt for fixing the telescopic length of the inner rod. The outer rod of the first telescopic rod 21 is connected to the rotating drum 3 through a first belt pulley transmission structure. The bottom end of the inner rod of the first telescopic rod 21 is provided with a first connector 23, and the bottom of the first connector 23 is provided with multiple grooves 25. The outer rod of the second telescopic rod 22 is connected to the second rotating shaft 7 through a second belt pulley transmission structure. The top end of the inner rod of the second telescopic rod 22 is provided with a second connector 24, and the top of the second connector 24 is provided with multiple protruding teeth 26 that are the same number as and match the grooves 25.

[0033] In addition, two fixed brackets 27 are fixedly installed at the upper and lower ends of the tank body 1, and the two fixed brackets 27 are rotatably connected to the outer rod of the first telescopic rod 21 and the outer rod of the second telescopic rod 22, respectively. It should be noted that the fixed brackets 27 are used to improve the stability of the outer rod of the first telescopic rod 21 and the second telescopic rod 22 during rotation.

[0034] In addition, an air inlet 28 is provided on the side of the tank 1, and an air outlet 29 and an ultrasonic humidifier 30 are provided on the top of the tank 1. A heating jacket is provided on the outer wall of the tank 1, and a temperature and humidity sensor 31 is provided on the shell of the tank 1 to detect the temperature and humidity inside the tank 1.

[0035] The working principle of this invention is: Before use, stretch the first telescopic rod 21 and the second telescopic rod 22, and insert the protruding tooth 26 of the second connector 24 into the groove 25 of the first connector 23 to connect the two connectors together.

[0036] In use, the compound enzyme is added to tank 1, and the culture medium is simultaneously introduced into the rotating drum 3 through the feed pipe 4. The servo motor 2 is started, driving the rotating drum 3 to rotate, which in turn drives the annular spray pipe 5 to rotate. The culture medium is sprayed out through the spray head 14, achieving uniform distribution. During the rotation of the annular spray pipe 5, the first rotating shaft 6 rotates, which in turn stirs the compound enzyme and culture medium through the spiral stirring blades 16, achieving vertical and horizontal mixing. Simultaneously, the rotating drum 3 drives the second rotating shaft 7 to rotate through the telescopic rod assembly, which in turn drives the drum 20 to rotate, stirring up the nutrients deposited at the bottom of tank 1. This greatly improves the efficiency of fermentation in the early stages. This promotes full contact between the compound enzyme and the culture medium. Fresh and clean air is introduced through the air inlet 28, and the tank 1 is heated and kept warm by the heating jacket. The humidity in the tank 1 is increased by the ultrasonic humidifier 30, which together create a suitable fermentation environment for the compound enzyme. In the middle stage of fermentation, the stirring speed can be appropriately increased to promote microbial metabolism. When the fermentation reaches the later stage, the servo motor 2 can be paused, the first telescopic rod 21 and the second telescopic rod 22 can be retracted, the two connectors can be disconnected, and then the servo motor 2 can be restarted to drive the first rotating shaft 6 to rotate. The speed can be appropriately reduced to reduce the stirring intensity and avoid enzyme inactivation or product degradation due to violent stirring.

[0037] After use, the cleaning plate 17 can be rotated by the servo motor 2 to sweep away the residues adhering to the inner wall of the tank 1, reducing the difficulty of manual cleaning and reducing the risk of cross-contamination.

[0038] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A compound enzyme fermentation device for pre-prepared vegetables, comprising a tank, a servo motor, a rotating drum, a feed pipe, an annular spray pipe, a first rotating shaft, a second rotating shaft, and a telescopic rod assembly, characterized in that: The tank has a feed inlet at the top and a discharge outlet at the bottom. A servo motor is located above the outside of the tank. A rotating drum passes through the top of the tank, and the top of the drum is connected to the output shaft of the servo motor via a bevel gear transmission pair. One end of a guide pipe is inserted into the rotating drum, and the outer wall of the guide pipe is sealed and rotatably connected to the inner wall of the rotating drum. An annular spray pipe is located below the rotating drum and is connected to the bottom of the rotating drum via a connecting pipe. Multiple spray heads are located at the bottom of the annular spray pipe. A first rotating shaft is located below the annular spray pipe, and the top of the first rotating shaft is fixedly connected to the outer wall of the annular spray pipe via a connecting rod. A spiral stirring blade is installed on the first rotating shaft. A second rotating shaft passes through the bottom of the tank, and mounting frames are fixedly connected to the left and right sides of the top of the second rotating shaft. Several rollers are rotatably connected to the bottom of the mounting frames. A telescopic rod assembly is located on one side of the outside of the tank, and the upper and lower ends of the telescopic rod assembly are connected to the rotating drum and the second rotating shaft, respectively.

2. The compound enzyme fermentation device for pre-prepared vegetables according to claim 1, characterized in that: The bevel gear transmission pair includes a meshing horizontal bevel gear and a vertical bevel gear. The horizontal bevel gear is fixed to the outside of the rotating drum, and the vertical bevel gear is mounted on the output shaft of the servo motor.

3. The compound enzyme fermentation device for pre-prepared vegetables according to claim 1, characterized in that: Cleaning plates are provided on both the left and right sides of the first rotating shaft. The cleaning plates are fixedly connected to the first rotating shaft by fixing rods. A cleaning brush is provided on the side of the cleaning plate near the side wall of the tank.

4. The compound enzyme fermentation device for pre-prepared vegetables according to claim 1, characterized in that: The telescopic rod assembly includes a first telescopic rod and a second telescopic rod arranged vertically opposite each other. Both the first and second telescopic rods include an inner rod and an outer rod that are inner and outer respectively. The outer rod of the first telescopic rod is connected to the rotating drum via a first transmission device. The bottom end of the inner rod of the first telescopic rod is provided with a first connector, and the bottom of the first connector is provided with multiple grooves. The outer rod of the second telescopic rod is connected to the second rotating shaft via a second transmission device. The top end of the inner rod of the second telescopic rod is provided with a second connector, and the top of the second connector is provided with multiple protruding teeth that are the same number as and match the number of grooves.

5. The compound enzyme fermentation device for pre-prepared vegetables according to claim 4, characterized in that: Both the first and second transmission devices are belt pulley transmission structures.

6. The compound enzyme fermentation device for pre-prepared vegetables according to claim 5, characterized in that: Two fixed supports are fixedly installed at the upper and lower ends of the tank body, and the two fixed supports are rotatably connected to the outer rods of the first telescopic rod and the outer rods of the second telescopic rod, respectively.

7. The compound enzyme fermentation device for pre-prepared dishes according to claim 1, characterized in that: A discharge valve is installed at the discharge port at the bottom of the tank, and a feed pump and a solenoid valve are installed on the feed pipe.

8. The compound enzyme fermentation device for pre-prepared dishes according to claim 1, characterized in that: The tank has an air inlet on its side and an air outlet and an ultrasonic humidifier on its top.

9. The compound enzyme fermentation device for pre-prepared dishes according to claim 8, characterized in that: A heating jacket is installed on the outer wall of the tank, and a temperature and humidity sensor is installed on the shell of the tank to detect the temperature and humidity inside the tank.

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