Fresh-locked rice noodle production system and method based on precise bacterium control and intelligent processing
By combining a medium-pressure ultraviolet sterilizer and a pasteurizer, the problem of starch molecule chain breakage caused by microbial growth in rice noodle production is solved, achieving efficient sterilization and texture preservation of rice noodles, and improving the taste and quality of the product.
Patent Information
- Application Number
- CN202511465216.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2025-11-14
AI Technical Summary
In the current rice noodle production process, prolonged soaking in warm water leads to the proliferation of microorganisms, which causes high-temperature and high-pressure sterilization, resulting in the breakage of starch molecular chains in the rice noodles, making them soft, mushy, and inelastic, seriously affecting product quality.
The medium-pressure ultraviolet sterilizer in the aseptic immersion device is used to achieve short-term and delayed ultraviolet sterilization through the cooperation of ultraviolet transmission components, adjustment components and drive components. Combined with pasteurization autoclave, it can achieve precise bacterial control and avoid the increase of colonies caused by long-term immersion.
It effectively inhibits the growth of microorganisms, maintains the elasticity of rice noodles, avoids the breakage of starch molecular chains caused by high-temperature and high-pressure sterilization, and improves the taste and quality of the product.
Smart Images
Figure CN120938129A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rice noodle production technology, and in particular to a fresh-locking rice noodle production system and method based on precise bacterial control and intelligent processing. Background Technology
[0002] Fresh wet rice noodles are pre-packaged foods made from rice as the main ingredient (≥90%) through processes such as washing, soaking, grinding, mixing, cooking, shaping, and cooling.
[0003] The existing rice noodle production process is as follows: rice is washed and then soaked in warm water at 35-40℃ for 2-4 hours. After soaking, the rice is ground into a paste and dehydrated to obtain wet rice noodle dough. The rice noodle dough is extruded and cooked using a twin-screw extruder. The rice noodles are cut and then allowed to age naturally. The aged rice noodles are loosened. The loosened rice noodles are then vacuum-packed (vacuum degree above -0.09 MPa). The packaged products are sent to a high-pressure sterilizer for high-temperature and high-pressure sterilization (121℃, 20-30 minutes). After sterilization, the product is cooled to obtain the finished product.
[0004] Existing rice noodle production methods involve prolonged soaking in warm water, followed by prolonged stillness or slow flow, which leads to the proliferation of microorganisms. This results in a very high initial total bacterial count in the rice noodle raw materials, necessitating the use of highly toxic high-temperature and high-pressure sterilization. However, the intense heat and negative pressure effect of vacuum packaging during sterilization work together to break down the starch molecular chains in the rice noodles and cause excessive gelation. This results in a product with a soft, mushy texture, lack of elasticity, and severe clumping and sticking together, severely compromising the quality of the food.
[0005] Therefore, it is necessary to propose a fresh-locking rice noodle production system and method based on precise bacterial control and intelligent processing to solve the above problems. Summary of the Invention
[0006] The purpose of this invention is to provide a fresh-locking rice noodle production system and method based on precise bacterial control and intelligent processing, so as to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a fresh-locking rice noodle production system based on precise bacterial control and intelligent processing, comprising an aseptic soaking device, wherein the aseptic soaking device includes a medium-pressure ultraviolet sterilizer, wherein the medium-pressure ultraviolet sterilizer includes at least two rings of irradiation components, each ring of irradiation components includes multiple ultraviolet transmission components arranged in a circumferential array, wherein the ultraviolet transmission components include a medium-pressure ultraviolet lamp, a first light-transmitting tube and a second light-transmitting tube arranged sequentially from the inside to the outside, wherein two limiting plates are symmetrically threaded to the end of the second light-transmitting tube, and two adjusting components are symmetrically provided at both ends of each second light-transmitting tube; The adjustment component includes multiple operating modes, which include: The first operating mode enables the liquid in the second chamber to be directly directed to the third chamber; The second working mode allows liquid in the second chamber to enter the second light-transmitting tube; The third operating mode can keep the regulating component in the off state, preventing liquid from entering the regulating component.
[0008] Preferably, the ultraviolet transmission component further includes two sets of first through holes, symmetrically arranged on the peripheral sidewalls at both ends of the second light-transmitting tube; Two sets of second through holes are symmetrically arranged on the peripheral sidewalls at both ends of the second light-transmitting tube; The cylinder is fitted outside the irradiation assembly and located between the limiting plates at both ends. It is divided into a first chamber, a second chamber, a third chamber and a fourth chamber from left to right by multiple partition plates. The second chamber has a water inlet on the left side wall and the fourth chamber has a water outlet on the side wall. Two sets of first through holes are located in the second chamber and the third chamber respectively, and two sets of second through holes are located in the first chamber and the fourth chamber respectively. The cleaning plate is located in the second chamber and is slidably sleeved with the second light-transmitting tube. It is driven by the drive component to move back and forth, and it can adjust the working mode of the adjustment component.
[0009] Preferably, the adjustment component includes an annular fixing body threadedly connected to the partition plate, with a plurality of water passage holes arranged in a circular array at one end near the middle of the second light-transmitting tube, and a receiving groove on its inner wall to allow the water passage holes to communicate with each other. The receiving groove has a sliding groove with a diameter larger than the receiving groove on the side opposite to the water passage holes. An annular sliding body, used to block the first or second through hole, is placed in a sliding groove. Its outer wall is in a sealed sliding connection with the inner wall of the sliding groove, and its inner wall is in a sealed sliding connection with the second light-transmitting tube. Multiple through slots are arranged in a circular array on its surface. No through slots are opened on the annular sliding body inside the adjustment component at the right end of the inner ring irradiation component. An annular filter plate is sealed and slidably fitted in a storage groove. It is connected to the inner wall of the storage groove by a second elastic element. There are no filter holes at the corresponding part of the through groove. Its inner wall is provided with a sealing part that is sealed and slidably connected to the second light-transmitting tube and can block the first through hole. The pressure plate is threaded onto the outer wall of the annular fixed body at the end away from the water passage hole, and a first elastic element is provided between it and the annular sliding body. The pusher, which corresponds to the through groove, is rotatably connected to the side of the annular filter plate near the water passage and extends to the annular fixed body. Multiple limiting grooves are provided on the circumferential side wall of the end away from the water passage. The limiting component, which is placed in the annular fixed body and cooperates with the multi-segment limiting groove, is used to limit the pushing part.
[0010] Preferably, the drive assembly includes a drive motor, which is located on the left side of the cylinder; The lead screw passes through the cleaning plate and the cylinder shaft and is rotatably connected to the partition plate. It is threadedly connected to the cleaning plate and is drive-connected to the output shaft of the drive motor. The guide rod passes through the cleaning plate and is fixedly connected to the partition plates at both ends of the second chamber.
[0011] Preferably, the sliding groove sidewall is provided with a plurality of drain holes in a circumferential array; The inner wall of the third chamber is connected to an inlet pipe and an outlet pipe.
[0012] Preferably, it also includes a soaking tank body, which has a conveyor chain plate inside and a water pump at the bottom. The water pump is connected to the inlet of a medium-pressure ultraviolet sterilizer through a filter box and a pipe. The outlet of the medium-pressure ultraviolet sterilizer is connected to the top of the soaking tank body.
[0013] Preferably, the end of the second light-transmitting tube is connected to the end of the first light-transmitting tube by a cover plate; A sealing rubber plug is provided between the end of the medium-pressure ultraviolet lamp and the end of the first light-transmitting tube.
[0014] Preferably, the limiting component includes a countersunk hole opened on the side wall of the annular fixed body and corresponding to the pushing member, a limiting post is provided inside the hole, a sealing member is provided at the end of the hole, and an elastic component is provided between the limiting post and the sealing member.
[0015] Preferably, the multi-segment limiting groove includes a first straight groove, a second straight groove, and a third straight groove, all with inclined bottoms and connected in series. The third straight groove has a spiral groove at the end away from the water passage hole. The tail end of the spiral groove is connected to the starting point of the first straight groove through a connecting groove. The depth of the starting point of the connecting groove is greater than the depth of the tail end of the spiral groove, and the depth of the tail end of the connecting groove is less than the depth of the starting point of the first straight groove.
[0016] This invention also provides a method for producing fresh-locking rice noodles based on precise bacterial control and intelligent processing, comprising the following steps: Step 1: Raw material cleaning. The rice grains are cleaned using the raw material processing unit. Step 2: Aseptic soaking. The washed rice grains are soaked in an aseptic soaking device, and the soaking liquid is continuously circulated for sterilization. Step 3: Grind the soaked rice grains into powder. Step 4: Weighing and blending. Weigh the crushed rice grains and blend them. Step 5: Extrusion molding, where the mixed raw materials are extruded into strips through an extrusion curing molding unit; Step Six: Loosening. The rice noodles are aged and loosened using the aging and loosening unit. Step 7: Packaging. Divide the loose rice noodles into portions and then semi-vacuum pack the portioned rice noodles. Step 8: Sterilization. Place the packaged products into baskets and immerse them in a hot water immersion pasteurizer. The pasteurizer uses a steam heating and hot water circulation system to maintain a uniform and stable water temperature between 75℃ and 95℃ for 20-60 minutes. Step 9: Foreign object detection. Use a metal detector to detect metal foreign objects in the disinfected rice noodles and remove any unqualified rice noodles.
[0017] The technical effects and advantages of this invention are as follows: 1. This invention enables the medium-pressure ultraviolet sterilizer to achieve short-term irradiation disinfection and sterilization in the early stage of soaking by cooperating with the ultraviolet transmission component, the adjustment component, the cleaning plate and the drive component, thereby enabling the soaking water to be quickly circulated and sterilized.
[0018] 2. This invention, through the cooperation of the ultraviolet transmission component, the adjustment component, the cleaning plate, and the drive component, enables the medium-pressure ultraviolet sterilizer to achieve delayed irradiation in the later stage of soaking, so as to completely kill the colonies; it avoids the situation where the number of colonies increases with the increase of soaking time, and the fixed irradiation time is insufficient to completely kill the colonies, which would affect the subsequent disinfection and sterilization of finished products.
[0019] 3. This invention, through the cooperation of the ultraviolet transmission component, the adjustment component, the cleaning plate and the drive component, can clean the ultraviolet transmission component, avoiding the situation where pollutants easily adhere to the surface of the ultraviolet germicidal lamp after long-term use, resulting in poor penetration and affecting the sterilization effect.
[0020] 4. This invention, through the cooperation of the ultraviolet transmission component, the adjustment component, the cleaning plate and the drive component, can clean the impurities filtered out of the annular filter plate into the third chamber without stopping the machine. Subsequently, only the water inlet pipe and the water outlet pipe are needed to clean the third chamber, thereby achieving cleaning without stopping the machine and improving production efficiency. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall production system of the present invention.
[0022] Figure 2 This is a three-dimensional schematic diagram of the medium-pressure ultraviolet sterilizer of the present invention.
[0023] Figure 3 This is a schematic diagram of the internal structure of the medium-pressure ultraviolet sterilizer in this invention.
[0024] Figure 4This is a schematic diagram of the disassembly of the ultraviolet transmission component in this invention.
[0025] Figure 5 This is a schematic diagram showing the connection between the ultraviolet transmission component and the adjustment component in this invention.
[0026] Figure 6 This is a cross-sectional view of the connection between the adjustment component and the ultraviolet transmission component in this invention.
[0027] Figure 7 In this invention Figure 6 Enlarged schematic diagram of part A in the middle.
[0028] Figure 8 This is a schematic diagram of the first working mode of the adjustment component in this invention.
[0029] Figure 9 This is a schematic diagram of the third working mode of the adjustment component in this invention.
[0030] Figure 10 This is a schematic diagram of the second working mode of the adjustment component in this invention.
[0031] Figure 11 This is a schematic diagram of the cleaning operation mode of the adjustment component in this invention.
[0032] Figure 12 This is a schematic diagram of the internal cavity distribution of the cylinder in this invention.
[0033] Figure 13 This is an unfolded view of the multi-segment limiting groove in this invention.
[0034] Figure 14 This is a schematic diagram showing the positions of the first through hole and the second through hole in this invention.
[0035] Figure 15 This is a schematic diagram showing the internal liquid flow direction of the medium-pressure ultraviolet sterilizer during the initial soaking stage of the present invention.
[0036] Figure 16 This is a schematic diagram showing the internal liquid flow direction of the medium-pressure ultraviolet sterilizer during the later stage of immersion in this invention.
[0037] In the diagram: 1. Aseptic soaking device; 2. Medium-pressure ultraviolet sterilizer; 3. Ultraviolet transmission component; 31. Medium-pressure ultraviolet lamp; 32. First light-transmitting tube; 33. Second light-transmitting tube; 34. Limiting plate; 35. First through hole; 36. Second through hole; 37. Cylinder; 371. First partition plate; 372. Second partition plate; 38. First chamber; 39. Second chamber; 310. Third chamber; 311. Fourth chamber; 312. Water inlet pipe; 313. Drain pipe; 4. Adjustment component; 41. Annular fixing body; 42. Water passage hole; 43. Collection groove; 44. Sliding groove; 441. Sewage discharge hole; 45. Annular sliding body; 46. Through groove; 47. Annular filter plate; 48. Sealing part; 49. Pressure plate; 41 0. First elastic element; 411. Pushing element; 4111. First straight groove; 4112. Second straight groove; 4113. Third straight groove; 4114. Spiral groove; 4115. Connecting groove; 412. Limiting component; 4121. Countersunk hole; 4122. Limiting post; 4123. Sealing component; 4124. Elastic component; 413. Second elastic element; 5. Cleaning plate; 6. Drive component; 61. Drive motor; 62. Lead screw; 63. Guide rod; 7. Protective cover; 8. Immersion tank body; 9. Raw material processing unit; 10. Crushing device; 11. Weighing and mixing unit; 12. Extrusion curing and molding unit; 13. Aging and loosening unit; 14. Semi-vacuum packaging device; 15. Pasteurizing autoclave; 16. Metal detector. Detailed Implementation
[0038] 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.
[0039] This invention provides, for example Figures 1 to 16 The system shown is a fresh-locking rice noodle production system based on precise bacterial control and intelligent processing, including a raw material processing unit 9, which is used to clean the raw materials.
[0040] The aseptic soaking device 1 is used to soak and soften rice, and to continuously circulate and sterilize the soaking water.
[0041] The pulverizing device 10 is used to pulverize the softened rice.
[0042] The weighing and mixing unit 11 is used to mix the crushed rice with the raw materials in a certain proportion.
[0043] The extrusion curing and molding unit 12 is used to extrude and cure the prepared materials.
[0044] The aging and loosening unit 13 is used to age and loosen the cooked rice noodles.
[0045] Semi-vacuum packaging device 14 is used to semi-vacuum package loose rice noodles.
[0046] Pasteurizing autoclave 15 is used to sterilize packaged rice flour.
[0047] Metal detector 16 is used to remove rice noodles containing metal foreign objects.
[0048] Specifically, the aseptic soaking device 1 includes a medium-pressure ultraviolet sterilizer 2, which is used to continuously circulate and sterilize the soaking pool water, creating a dynamic aseptic soaking environment and inhibiting microorganisms from the source.
[0049] The aseptic soaking device 1 also includes a soaking tank body 8, which has a conveyor chain plate inside and a water pump at its bottom. The water pump is connected to the inlet of the medium-pressure ultraviolet sterilizer 2 through a filter box and pipes. The outlet of the medium-pressure ultraviolet sterilizer 2 is connected to the top of the soaking tank body 8. Through the cooperation of the water pump, pipes, and medium-pressure ultraviolet sterilizer 2, the circulating water pump continuously draws water from the tank into the ultraviolet sterilizer, killing more than 99.9% of microorganisms. The sterile water then flows back into the tank, forming a continuous sterile water circulation, thereby achieving circulating sterilization of the liquid within the soaking tank body 8.
[0050] Furthermore, the medium-pressure ultraviolet sterilizer 2 includes at least two rings of irradiation components, each ring of irradiation components including multiple ultraviolet transmission components 3 arranged in a circumferential array.
[0051] The ultraviolet transmission component 3 includes, from the inside out, a medium-pressure ultraviolet lamp 31, a first light-transmitting tube 32, and a second light-transmitting tube 33. Two limiting plates 34 are symmetrically threaded to the ends of the second light-transmitting tube 33. Each second light-transmitting tube 33 has two symmetrically arranged adjusting components 4 at both ends. Specifically, as shown... Figure 6 As shown, the end of the second light-transmitting tube 33 is connected to the end of the first light-transmitting tube 32 by a cover plate. One end of the cover plate is threaded to the outer wall of the second light-transmitting tube 33, and the other end is sealed to the outer wall of the first light-transmitting tube 32. A sealing rubber plug is provided between the end of the medium-pressure ultraviolet lamp 31 and the end of the first light-transmitting tube 32.
[0052] Two sets of first through holes 35 are symmetrically arranged on the sidewalls at both ends of the second light-transmitting tube 33.
[0053] Two sets of second through holes 36 are symmetrically arranged on the sidewalls at both ends of the second light-transmitting tube 33.
[0054] The cylindrical body 37 is fitted around the irradiation assembly and located between the limiting plates 34 at both ends. Internally, it is divided from left to right into a first chamber 38, a second chamber 39, a third chamber 310, and a fourth chamber 311 by multiple partitions. The second chamber 39 has a water inlet on its left side wall, and the fourth chamber 311 has a water outlet on its side wall. Two sets of first through holes 35 are located in the second chamber 39 and the third chamber 310, respectively, and two sets of second through holes 36 are located in the first chamber 38 and the fourth chamber 311, respectively. The water inlet and outlet are as follows: Figure 2 As shown, specifically, the cylinder 37 includes a main body and end plates disposed at both ends of the main body and slidably connected to the irradiation assembly. Two first partition plates 371 are symmetrically arranged inside the cylinder 37 and located between the first through hole 35 and the second through hole 36. A second partition plate 372 is provided inside the cylinder 37, located between the two sets of first through holes 35 and close to the right first through hole 35. The partition plates and the cylinder 37 are both detachably and slidably connected.
[0055] The cleaning plate 5 is located in the second chamber 39 and is slidably sleeved with the second light-transmitting tube 33. It is driven by the driving component 6 to perform left and right reciprocating movements. It can adjust the working mode of the adjustment component 4. Its initial position is located at the center line of the second light-transmitting tube 33. By setting the cleaning plate 5, the present invention firstly cleans the second light-transmitting tube 33 by driving the cleaning plate 5 through the driving component 6, and secondly, adjusts the working mode of the adjustment component 4 by driving the cleaning plate 5 through the driving component 6.
[0056] Specifically, the drive assembly 6 includes a drive motor 61, which is located on the left side of the cylinder 37; a lead screw 62, which passes through the cleaning plate 5 and the axis of the cylinder 37 and is rotatably connected to the partition plate, is threadedly connected to the cleaning plate 5, and is drively connected to the output shaft of the drive motor 61; and a guide rod 63, which passes through the cleaning plate 5 and is fixedly connected to the partition plates at both ends of the second chamber 39. This invention controls the rotation of the drive motor 61, thereby driving the lead screw 62 to rotate. Under the action of the thread, the rotation of the lead screw 62 causes the cleaning plate 5 to slide left and right, and the left and right sliding of the cleaning plate 5 cleans the second light-transmitting tube 33.
[0057] The present invention also includes a protective cover 7, which is located on the left side of the cylinder 37 and is detachably connected to the cylinder 37; by setting the protective cover 7, the present invention can protect the drive component 6 and extend the service life of the equipment.
[0058] Adjustment component 4 includes multiple operating modes, which include: In the first operating mode, the liquid in the second chamber 39 can be directly guided to the third chamber 310; for example... Figure 8 As shown.
[0059] The second operating mode allows the liquid in the second chamber 39 to enter the second light-transmitting tube 33 through the first through-hole 35; such as Figure 10 As shown.
[0060] The third operating mode allows the regulating component to be shut off, preventing liquid from entering the regulating component. For example... Figure 9 As shown, the annular filter plate 47 is attached to the annular sliding body 45. The annular filter plate 47 blocks the through groove 46, and at the same time, the annular sliding body 45 blocks the first through hole 35, preventing liquid from entering the regulating component 4.
[0061] The adjustment component 4 includes an annular fixing body 41 that is threadedly connected to the partition plate. One end of the annular fixing body 41, near the middle of the second light-transmitting tube 33, has a plurality of water passage holes 42 arranged in a circumferential array. The inner wall of the annular fixing body 41 has a receiving groove 43 that allows the water passage holes 42 to communicate with each other. The receiving groove 43 has a sliding groove 44 with a diameter larger than the receiving groove 43 on the side opposite to the water passage holes 42. By setting the receiving groove 43, the present invention facilitates the placement of the annular filter plate 47 in the annular fixing body 41 and facilitates the subsequent cleaning and maintenance of the annular filter plate 47.
[0062] An annular sliding body 45, used to block the first through hole 35 or the second through hole 36, is placed in a sliding groove 44. Its outer wall is slidably connected to the inner wall of the sliding groove 44, and its inner wall is slidably connected to the second light-transmitting tube 33. Multiple through slots 46 are arranged in a circumferential array on its surface. The annular sliding body 45 inside the right end of the inner ring irradiation component 4 does not have through slots 46. By setting the annular sliding body 45, the present invention can, firstly, directly guide the liquid in the second chamber 39 to the third chamber 310, enabling the adjustment component 4 to achieve a first working mode; secondly, the sliding of the annular sliding body 45 can connect the first through hole 35 with the second chamber 39, thereby enabling the adjustment component 4 to achieve a second working mode.
[0063] An annular filter plate 47 is slidably fitted inside a receiving groove 43 and connected to the inner wall of the receiving groove 43 by a second elastic member 413. It has no filter holes corresponding to the through groove 46, and its inner wall is provided with a sealing part 48 that is slidably connected to the second light-transmitting tube 33 and can block the first through hole 35. It should be noted that the second elastic member 413 is a tension spring, which initially pulls the filter plate 47 towards the side closer to the water passage hole 42, preventing the filter plate 47 from contacting the annular sliding body 45 initially. By setting the annular filter plate 47, when the annular filter plate 47 contacts the annular sliding body 45, the through groove 46 is blocked, and simultaneously, the annular sliding body 45 blocks the first through hole 35.
[0064] A pressure plate 49 is threaded onto the outer wall of the annular fixing body 41 at the end away from the water passage 42, and a first elastic element 410 is provided between the pressure plate 49 and the annular sliding body 45. By setting the pressure plate 49 and the first elastic element 410, the annular sliding body 45 is pressed tightly against the inner wall of the sliding groove 44 under the elastic force of the first elastic element 410. The first elastic element 410 is a compression spring.
[0065] The pusher 411 corresponds to the through groove 46 and is rotatably connected to the side of the annular filter plate 47 near the water hole 42, and extends to the outside of the annular fixing body 41. Multiple limiting grooves are provided on the peripheral side wall of the end away from the water hole 42.
[0066] The limiting component 412 is placed inside the annular fixing body 41 and cooperates with the multi-segment limiting groove to limit the pusher 411.
[0067] Specifically, the multi-segment limiting groove includes a first straight groove 4111, a second straight groove 4112, and a third straight groove 4113, all with inclined bottoms and connected in series. The third straight groove 4113 has a spiral groove 4114 at the end away from the water passage hole 42. The tail end of the spiral groove 4114 is connected to the starting point of the first straight groove 4111 through a connecting groove 4115. The depth of the starting point of the connecting groove 4115 is greater than the depth of the tail end of the spiral groove 4114, and the depth of the tail end of the connecting groove 4115 is less than the depth of the starting point of the first straight groove 4111.
[0068] Specifically, the limiting component 412 includes a countersunk hole 4121 opened on the side wall of the annular fixing body 41 and corresponding to the pusher 411, a limiting post 4122 is provided inside, a sealing member 4123 is provided at its end, and an elastic member 4124 is provided between the limiting post 4122 and the sealing member 4123.
[0069] It is important to note that in this invention, the initial state of the adjusting component 4 is the first working state, at which time the limiting post 4122 is located at the starting point of the first straight groove 4111. The initial position of the cleaning plate 5 is located at the center line of the second light-transmitting tube 33.
[0070] During installation, the cleaning plate 5, lead screw 62, and guide rod 63 are placed inside the cylinder 37. Then, the partition plate is passed through the lead screw 62 and guide rod 63 and fixedly connected to the inner wall of the cylinder 37. Then, the annular fixing body 41 of the assembled adjustment component 4 is connected to the partition plate. It should be noted that the annular filter plate 47 and the pusher 411 are not installed inside the adjustment component 4 at the right end of the inner ring irradiation component, and the annular sliding body 45 inside the adjustment component 4 at the right end of the inner ring irradiation component does not have a through groove 46. Then, the end plates at both ends of the cylinder 37 are fixedly connected to the cylinder 37. Then, the assembled ultraviolet transmission component 3 is inserted into the cylinder 37. Then, the upper limit plate 34 is screwed on both ends of the second light-transmitting tube 33 of the ultraviolet transmission component 3 and the upper limit plate 34 is made to abut against the end plate, thereby limiting the second light-transmitting tube 33. Then, the drive motor 61 and the protective cover 7 are installed.
[0071] After installation, by controlling the drive assembly 6, the cleaning plate 5 slides to the left by a first preset distance. The cleaning plate 5 sliding to the left will contact the pusher 411 of the left-end adjustment assembly 4. As it continues to move, after overcoming the elastic force of the second elastic member 413, it pushes the pusher 411 and the annular filter plate 47 to slide to the left. The annular filter plate 47 sliding to the left will contact the annular sliding body 45 and block the through groove 46 on the annular sliding body 45. At this time, the limiting post 4122 slides out from the first straight groove 4111 and into the second straight groove 4112. As it continues to move, after overcoming the elastic force of the first elastic member 410, it will push the pusher 411, the annular filter plate 47, and the annular sliding body. 45 slides synchronously to the left. The sliding of the annular sliding body 45 to the left will release the blockage of the first through hole 35 at the left end, and at the same time block the second through hole 36 in the first chamber 38. At this time, the limiting post 4122 slides from the second straight groove 4112 into the third straight groove 4113, thereby achieving the limiting again. At this time, the left end adjustment component 4 is in the second working mode. At this time, part of the water in the second chamber 39 reaches the inner cavity of the second light-transmitting tube 33 through the water passage 42, the annular filter plate 47, the collection groove 43 and the first through hole 35 in the left end adjustment component 4, thereby enabling the liquid in the second chamber 39 to enter the second light-transmitting tube 33 through the first through hole 35, thus completing the initial state setting.
[0072] It should be emphasized that in the initial state of the present invention, the adjustment component 4 on the left is in the second working mode, which enables the liquid in the second chamber 39 to be directly guided to the third chamber 310; the adjustment component 4 at the right end of the outer ring irradiation component is in the first working mode, which enables the liquid in the second chamber 39 to enter the second light-transmitting tube 33 through the first through hole 35, which is the initial state.
[0073] like Figure 15As shown, in the initial soaking stage, since the number of bacterial colonies inside is low at the beginning of soaking, short-term irradiation disinfection and sterilization can be used, thereby enabling rapid circulation and sterilization of the soaking water. At this time, since the adjustment component 4 on the left is in the second working mode, the liquid in the second chamber 39 can be directly guided to the third chamber 310; the adjustment component 4 on the right end of the outer ring irradiation component is in the first working mode, which allows the liquid in the second chamber 39 to enter the second light-transmitting tube 33 through the first through hole 35. At this time, the liquid enters the second chamber through the inlet of the medium-pressure ultraviolet sterilizer 2. 39. Part of the water flows through the water passage 42, annular filter plate 47, collection groove 43, first through hole 35 and second light-transmitting tube 33 in the regulating component 4 at the left end of the second chamber 39 to the fourth chamber 311. The other part flows directly into the fourth chamber 311 through the water passage 42, annular filter plate 47, collection groove 43, through groove 46 and sliding groove 44 in the regulating component 4 at the right end of the second chamber 39. Finally, the water is discharged from the fourth chamber 311 and the outlet of the medium-pressure ultraviolet sterilizer 2 and re-enters the soaking tank body 8, thereby achieving rapid circulation disinfection.
[0074] like Figure 16As shown, in the later stage of soaking, due to the increased soaking time, the number of colonies inside increases. Short-term irradiation disinfection is insufficient to completely kill the colonies. In the later stage of soaking, the cleaning plate 5 is first driven to slide to the left by the control drive component 6 by a second preset distance. The second preset distance is less than the first preset distance. The cleaning plate 5 will contact the pusher 411 of the left end adjustment component 4 as it slides to the left. As it continues to move, after overcoming the elastic force of the second elastic element 413, it pushes the pusher 411 and the annular filter plate 47 to slide to the left. The annular filter plate 47 will contact the annular sliding body 45 as it slides to the left and block the through groove 46 on the annular sliding body 45. At this time, the limiting post 4122 slides out from the first straight groove 4111 and slides into the second straight groove 411. Within 2, the limiting is re-established. At this time, the liquid cannot enter the second light-transmitting tube 33 through the water passage 42 in the left end of the adjustment component 4 in the second chamber 39, nor can it enter the first chamber 38 through the water passage 42 in the left end of the adjustment component 4 in the second chamber 39. Finally, the left adjustment component 4 is switched from the second working mode to the third working mode. Then, the cleaning plate 5 is driven to slide to the right by the control drive component 6 by a first preset distance. The first preset distance is the distance that allows the adjustment component 4 to switch from the first working mode to the second working mode. The cleaning plate 5 slides to the right and will contact the pusher 411 of the right end adjustment component 4 of the outer ring irradiation component. As it continues to move, it pushes the pusher 411 after overcoming the elastic force of the second elastic member 413. As the annular filter plate 47 slides to the right, it will come into contact with the annular sliding body 45 and block the through groove 46 on the annular sliding body 45. At this time, the limiting post 4122 slides out from the first straight groove 4111 and into the second straight groove 4112. As it continues to move, after overcoming the elastic force of the first elastic member 410, it will push the pusher 411, the annular filter plate 47 and the annular sliding body 45 to slide to the right simultaneously. The sliding of the annular sliding body 45 to the right will release the blockage of the first through hole 35 at the right end and at the same time block the second through hole 36 in the fourth chamber 311. At this time, the limiting post 4122 slides from the second straight groove 4112 into the third straight groove 4113, thereby achieving limiting again. At this time, the outer ring irradiation assembly When the right-end adjustment component 4 is in the second working mode, the liquid entering the second chamber 39 is finally drawn into the first chamber 38 through the water passage 42, the annular filter plate 47, the collection tank 43, the first through hole 35, and the inner cavity of the second light-transmitting tube 33 of the outer ring irradiation component right-end adjustment component 4. The liquid flowing into the first chamber 38 then passes through the second through hole 36 at the left end of the second light-transmitting tube 33 of the inner ring irradiation component, the inner cavity of the second light-transmitting tube 33 of the inner ring irradiation component, and the fourth chamber 311. Finally, the liquid in the second light-transmitting tube 33 of the inner ring irradiation component is drawn into the fourth chamber 311 and flows back into the soaking tank body 8 from the outlet of the fourth chamber 311, thus extending the sterilization path and achieving delayed irradiation to completely kill the colonies.To avoid an increase in bacterial count due to prolonged soaking, maintaining a fixed irradiation time may not be sufficient to completely kill the bacteria, thus affecting subsequent sterilization of the finished product.
[0075] In both of the above-mentioned cyclic sterilization processes, the drive component 6 drives the cleaning plate 5 to reciprocate left and right. The reciprocating left and right movement of the cleaning plate 5 can clean the second light-transmitting tube 33, avoiding the situation where contaminants easily adhere to the surface of the external germicidal lamp after long-term use, resulting in poor penetration effect and affecting the sterilization effect.
[0076] The impurities cleaned from the second light-transmitting tube 33 are eventually filtered into the storage tank 43 by the annular filter plate 47 in the regulating component 4.
[0077] Furthermore, the sliding groove 44 of the present invention has a plurality of drain holes 441 arranged in a circumferential array on its sidewall.
[0078] The inner wall of the third chamber 310 is connected to an inlet pipe 312 and an outlet pipe 313.
[0079] When it is necessary to clean the impurities filtered out on the annular filter plate 47, the cleaning plate 5 is driven to slide to the right by the control drive component 6 by a third preset distance. The third preset distance is greater than the first preset distance. The cleaning plate 5 will slide to the right and come into contact with the pusher 411 of the right end adjustment component 4 of the outer ring irradiation component. As it continues to move, after overcoming the elastic force of the second elastic element 413, it pushes the pusher 411 and the annular filter plate 47 to slide to the right. The annular filter plate 47 will come into contact with the annular sliding body 45 and block the through groove 46 on the annular sliding body 45. At this time, the limiting post 4122 slides out from the first straight groove 4111 and slides into the second straight groove 4112. As it continues to move, after overcoming the elastic force of the first elastic element 410, it will push the pusher 411, the annular filter plate 47 and the annular sliding body 45 to slide to the right simultaneously. The sliding of the annular sliding body 45 to the right will release the blockage of the first through hole 35 at the right end, and at the same time open the fourth chamber 3. The second through hole 36 in chamber 11 is blocked; at this time, the limiting post 4122 slides from the second straight groove 4112 into the third straight groove 4113. As it continues to move to the right, the annular sliding body 45 continues to block the second through hole 36. At the same time, the blocking part 48 of the annular filter plate 47 will block the first through hole 35 in the third chamber 310. Meanwhile, the annular sliding body 45 releases the blockage of the drain hole 441. At this time, the liquid entering the second chamber 39 passes through the second chamber. 39. The water passage 42, annular filter plate 47, collection groove 43, sliding groove 44 and drain hole 441 in the right end of the adjustment component 4 in the second chamber 39 enter the third chamber 310, thereby flushing the impurities on the annular filter plate 47 into the third chamber 310. This allows the impurities filtered by the annular filter plate 47 to be cleaned into the third chamber 310 without stopping the machine. Afterwards, only the water inlet pipe 312 and the drain pipe 313 are needed to clean the third chamber 310.
[0080] When it is necessary to control the adjustment component 4 to reset to the first working state, i.e., the initial position, taking the adjustment component 4 as an example, the drive component 6 drives the cleaning plate 5 to slide to the right by a fourth preset distance. The fourth preset distance is greater than the third preset distance. The cleaning plate 5 will slide to the right and come into contact with the pusher 411 of the right end adjustment component 4 of the outer ring irradiation component. As it continues to move, after overcoming the elastic force of the second elastic member 413, it pushes the pusher 411 and the annular filter plate 47 to slide to the right. As it continues to move, the limiting post 4122 will move from the limit post 4122 to the limit post 4122. The first straight groove 4111 slides into the second straight groove 4112, the third straight groove 4113, and the spiral groove 4114 in sequence. After entering the right spiral groove 4114, under the guidance of the spiral groove 4114, the pusher 411 will be pushed further, causing the limiting post 4122 to enter the connecting groove 4115 from the spiral groove 4114. Then, the drive assembly 6 is reset. Then, under the elastic force of the second elastic member 413, the pusher 411 slides to the left, thereby resetting the pusher 411 to its initial position.
[0081] This invention also provides a method for producing fresh-locking rice noodles based on precise bacterial control and intelligent processing, comprising the following steps: Step 1: Raw material cleaning. The rice grains are cleaned using the raw material processing unit 9. Step 2: Aseptic soaking. The washed rice grains are soaked in an aseptic soaking device 1, and the soaking liquid is continuously circulated for sterilization. Step 3: Grind the soaked rice grains into powder. Step 4: Weighing and blending. Weigh the crushed rice grains and blend them. Step 5: Extrusion molding. The mixed raw materials are extruded into strips through the extrusion curing molding unit 12. Step 6: Loosening. The rice noodles are aged and loosened using the aging and loosening unit 13. Step 7: Packaging. Divide the loose rice noodles into portions and then semi-vacuum pack the portioned rice noodles. Step 8: Sterilization. Place the packaged products into baskets and immerse them in a hot water immersion pasteurizer. The pasteurizer uses a steam heating and hot water circulation system to maintain a uniform and stable water temperature between 75°C and 95°C for 20-60 minutes. Operators can select preset sterilization programs from the HMI (Human Machine Interface) according to the diameter of the rice noodles being produced, such as: 82°C / 30min for a diameter of 0.8mm; 85°C / 40min for a diameter of 1.2mm; and 88°C / 50min for a diameter of 1.5mm, to achieve precise sterilization.
[0082] Step 9: Foreign object detection. Use a metal detector 16 to detect metal foreign objects in the disinfected rice noodles and remove any unqualified rice noodles.
[0083] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A fresh-locking rice noodle production system based on precise bacterial control and intelligent processing, comprising an aseptic soaking device, characterized in that, The sterile soaking device includes a medium-pressure ultraviolet sterilizer, which includes at least two rings of irradiation components. Each ring of irradiation components includes multiple ultraviolet transmission components arranged in a circumferential array. Each ultraviolet transmission component includes a medium-pressure ultraviolet lamp, a first light-transmitting tube, and a second light-transmitting tube arranged sequentially from the inside to the outside. The end of the second light-transmitting tube is symmetrically threaded with two limiting plates, and each second light-transmitting tube has two symmetrical adjustment components at both ends. The adjustment component includes multiple operating modes, which include: The first operating mode enables the liquid in the second chamber to be directly directed to the third chamber; The second working mode allows liquid in the second chamber to enter the second light-transmitting tube; The third operating mode can keep the regulating component in the off state, preventing liquid from entering the regulating component.
2. The fresh-locking rice noodle production system based on precise bacterial control and intelligent processing according to claim 1, characterized in that, The ultraviolet transmission component also includes two sets of first through holes, symmetrically arranged on the peripheral sidewalls at both ends of the second light-transmitting tube; Two sets of second through holes are symmetrically arranged on the peripheral sidewalls at both ends of the second light-transmitting tube; The cylinder is fitted outside the irradiation assembly and located between the limiting plates at both ends. It is divided into a first chamber, a second chamber, a third chamber and a fourth chamber from left to right by multiple partition plates. The second chamber has a water inlet on the left side wall and the fourth chamber has a water outlet on the side wall. Two sets of first through holes are located in the second chamber and the third chamber respectively, and two sets of second through holes are located in the first chamber and the fourth chamber respectively. The cleaning plate is located in the second chamber and is slidably sleeved with the second light-transmitting tube. It is driven by the drive component to move back and forth, and it can adjust the working mode of the adjustment component.
3. The fresh-locking rice noodle production system based on precise bacterial control and intelligent processing according to claim 2, characterized in that, The adjustment component includes an annular fixing body that is threadedly connected to the partition plate. One end of the annular fixing body near the middle of the second light-transmitting tube has a plurality of water holes arranged in a circular array. The inner wall of the annular fixing body has a storage groove that allows the water holes to communicate with each other. The storage groove has a sliding groove with a diameter larger than the storage groove on the side away from the water holes. An annular sliding body, used to block the first or second through hole, is placed in a sliding groove. Its outer wall is in a sealed sliding connection with the inner wall of the sliding groove, and its inner wall is in a sealed sliding connection with the second light-transmitting tube. Multiple through slots are arranged in a circular array on its surface. No through slots are opened on the annular sliding body inside the adjustment component at the right end of the inner ring irradiation component. An annular filter plate is sealed and slidably fitted in a storage groove. It is connected to the inner wall of the storage groove by a second elastic element. There are no filter holes at the corresponding part of the through groove. Its inner wall is provided with a sealing part that is sealed and slidably connected to the second light-transmitting tube and can block the first through hole. The pressure plate is threaded onto the outer wall of the annular fixed body at the end away from the water passage hole, and a first elastic element is provided between it and the annular sliding body. The pusher, which corresponds to the through groove, is rotatably connected to the side of the annular filter plate near the water passage and extends to the annular fixed body. Multiple limiting grooves are provided on the circumferential side wall of the end away from the water passage. The limiting component, which is placed in the annular fixed body and cooperates with the multi-segment limiting groove, is used to limit the pushing part.
4. The fresh-locking rice noodle production system based on precise bacterial control and intelligent processing according to claim 2, characterized in that, The drive assembly includes a drive motor, which is located on the left side of the cylinder; The lead screw passes through the cleaning plate and the cylinder shaft and is rotatably connected to the partition plate. It is threadedly connected to the cleaning plate and is drive-connected to the output shaft of the drive motor. The guide rod passes through the cleaning plate and is fixedly connected to the partition plates at both ends of the second chamber.
5. The fresh-locking rice noodle production system based on precise bacterial control and intelligent processing according to claim 3, characterized in that, The sliding groove sidewall is provided with multiple drain holes arranged in a circumferential array; The inner wall of the third chamber is connected to an inlet pipe and an outlet pipe.
6. The fresh-locking rice noodle production system based on precise bacterial control and intelligent processing according to claim 1, characterized in that, It also includes a soaking tank body, which has a conveyor chain plate inside and a water pump at the bottom. The water pump is connected to the inlet of a medium-pressure ultraviolet sterilizer through a filter box and a pipe. The outlet of the medium-pressure ultraviolet sterilizer is connected to the top of the soaking tank body.
7. The fresh-locking rice noodle production system based on precise bacterial control and intelligent processing according to claim 3, characterized in that, The end of the second light-transmitting tube is connected to the end of the first light-transmitting tube by a cover plate; A sealing rubber plug is provided between the end of the medium-pressure ultraviolet lamp and the end of the first light-transmitting tube.
8. The fresh-locking rice noodle production system based on precise bacterial control and intelligent processing according to claim 3, characterized in that, The limiting component includes a countersunk hole opened on the side wall of the annular fixed body and corresponding to the pushing component, a limiting post is provided inside the hole, a sealing component is provided at the end of the hole, and an elastic component is provided between the limiting post and the sealing component.
9. A fresh-locking rice noodle production system based on precise bacterial control and intelligent processing according to claim 3, characterized in that, The multi-segment limiting groove includes a first straight groove, a second straight groove, and a third straight groove, all with inclined bottoms and connected in series. The third straight groove has a spiral groove at the end away from the water passage hole. The tail end of the spiral groove is connected to the starting point of the first straight groove through a connecting groove. The depth of the starting point of the connecting groove is greater than the depth of the tail end of the spiral groove, and the depth of the tail end of the connecting groove is less than the depth of the starting point of the first straight groove.
10. A method for producing fresh-locking rice noodles based on precise bacterial control and intelligent processing, wherein the method utilizes the production system described in any one of claims 1-9 to prepare the rice noodles, characterized in that... Includes the following steps: Step 1: Raw material cleaning. The rice grains are cleaned using the raw material processing unit. Step 2: Aseptic soaking. The washed rice grains are soaked in an aseptic soaking device, and the soaking liquid is continuously circulated for sterilization. Step 3: Grind the soaked rice grains into powder. Step 4: Weighing and blending. Weigh the crushed rice grains and blend them. Step 5: Extrusion molding, where the mixed raw materials are extruded into strips through an extrusion curing molding unit; Step Six: Loosening. The rice noodles are aged and loosened using the aging and loosening unit. Step 7: Packaging. Divide the loose rice noodles into portions and then semi-vacuum pack the portioned rice noodles. Step 8: Sterilization. Place the packaged products into baskets and immerse them in a hot water immersion sterilizer. The sterilizer uses a steam heating and hot water circulation system to keep the water temperature uniform and stable at the set 75℃-95℃. The sterilization time is 20-60 minutes. Step 9: Foreign object detection. Use a metal detector to detect metal foreign objects in the disinfected rice noodles and remove any unqualified rice noodles.