A raw material crushing device and method for producing soak-free potato vermicelli

Abstract

The present invention is applicable to the field of potato preparation technology and provides a raw material crushing device and method for producing non-foaming potato vermicelli, including a main body with a built-in coarse crushing chamber and a foam-suppressing grinding chamber; the coarse crushing chamber is provided with a staggered comb hob and a spiral feeder for initially crushing the potato raw materials; the foam-suppressing grinding chamber is a sealed chamber, which is provided with a resonant grinding head for micro-grinding slurry, a negative pressure interface for connecting to a vacuum pump is provided at the top of the chamber, and a slurry state sensor for measuring the electrical properties of the slurry is provided at the outlet; the device also includes a power and transmission system for providing power to each component, and a controller for electrically connecting sensors and actuators to achieve intelligent control. The present invention suppresses the generation of foam at the source of crushing through a combination of physical structure and flexible regulation, and can dynamically adjust operating parameters based on real-time feedback, can adapt to changes in raw materials and seek optimal energy efficiency, thereby significantly improving the quality of potato slurry and the stability of the production process.

Description

Technical Field

[0001] The invention belongs to the technical field of potato preparation, and in particular relates to equipment and a method for crushing raw materials for producing soak-free potato vermicelli. Background Art

[0002] In the production process of potato vermicelli, a key link is to crush fresh potato tubers to prepare a uniform slurry. The crushing equipment commonly used in the existing technology mostly relies on high-speed rotating blades to shear and impact potatoes. This violent mechanical action will inevitably draw a large amount of air into the slurry while crushing the material, and may cause the protein in the potato to denature due to local high temperature and high shear force. The mixing of air and the denaturation of protein work together to easily form a large amount of stable and difficult-to-eliminate foam in the slurry. If these foams cannot be effectively removed, they will directly continue to the subsequent maturation and molding processes, and ultimately seriously affect the quality of the vermicelli, resulting in holes inside, rough taste, uneven appearance and even easy breakage, thereby reducing the product yield and market competitiveness. Therefore, how to suppress the generation of foam from the source during the raw material crushing stage is a technical problem that needs to be urgently solved in the current field of potato vermicelli production. Summary of the Invention

[0003] The invention provides a raw material crushing device for producing foam-free potato vermicelli and a method thereof, aiming to solve the problem of suppressing the generation of foam from the source during the raw material crushing stage.

[0004] The present invention is achieved by a method for crushing raw materials for producing soak-free potato vermicelli, comprising the following steps:

[0005] Obtaining benchmark parameters, obtaining the initial ideal slurry benchmark value of the ideal bubble-free slurry, and further obtaining material flux parameters, grinding system energy consumption parameters, and slurry electrical characteristic parameters under different grinding powers;

[0006] Establishing a characteristic model, based on material flux parameters, grinding system energy consumption parameters and slurry electrical characteristic parameters, establishing a grinding-electrical characteristic model for characterizing the intrinsic relationship between grinding energy consumption and slurry electrical characteristics, and an energy consumption-flux characteristic model for characterizing the intrinsic relationship between material flux and grinding energy consumption;

[0007] Perform closed-loop control to obtain the electrical characteristic parameters of the slurry in real time and compare them with the initial ideal slurry benchmark value to generate a foaming tendency index. According to the size of the foaming tendency index, the operating parameters are coordinated to suppress foam generation.

[0008] Preferably, performing closed-loop control further includes: setting a first-level warning threshold and a second-level critical threshold;

[0009] When the foaming tendency index exceeds the first-level warning threshold, the vacuum degree in the grinding chamber is increased and the grinding power is reduced;

[0010] When the foaming tendency index exceeds the secondary critical threshold, or the rate of change of the index exceeds the preset upper limit of the runaway rate, the feed rate is further reduced to reduce the feed amount on the basis of executing the above operations.

[0011] Preferably, the method further includes model inspection and optimization steps:

[0012] During equipment operation, based on the energy consumption-flux characteristic model, the unit material processing energy consumption calculated by the real-time flux and real-time energy consumption is continuously compared to see if it deviates from the model; if a continuous deviation occurs, the model is judged to be invalid and online recalibration is triggered; if no deviation occurs, the grinding power is increased in small steps within the safety boundary of ensuring that the foaming tendency index is lower than the first-level warning threshold, until the foaming tendency index shows a trend close to the first-level warning threshold, and the working parameters are rolled back to the previous stable state to achieve energy efficiency optimization.

[0013] Preferably, the step of obtaining the reference parameters begins by injecting an artificially prepared ideal bubble-free slurry into the grinding chamber to calibrate an initial ideal slurry reference value.

[0014] A raw material crushing device for producing foam-free potato vermicelli comprises: a main body, the interior of which is divided into a coarse crushing chamber and a foam-suppressing grinding chamber; the coarse crushing chamber is provided with an offset comb tooth hob for crushing potato raw materials into slurry, and a spiral feeder for pushing the potato raw materials into the coarse crushing chamber; the foam-suppressing grinding chamber is a sealed cavity, in which a resonant grinding head for micro-grinding the slurry is provided, a negative pressure interface for connecting to a vacuum pump is provided at the top of the foam-suppressing grinding chamber, and a slurry state sensor for measuring the electrical properties of the slurry is provided on the inner wall of its outlet pipe; a power and transmission system comprises a first variable frequency motor connected to and driving the spiral feeder and the offset comb tooth hob, and a second variable frequency motor driving the resonant grinding head and an excitation source; and a controller, which is electrically connected to the slurry state sensor, the first variable frequency motor, the second variable frequency motor, the excitation source and the vacuum pump.

[0015] Preferably, the resonant grinding head is one or more metal probes driven by a second variable frequency motor and an excitation source to reciprocate at ultrasonic or infrasonic frequencies.

[0016] Preferably, the slurry state sensor is composed of a pair of coaxial cylindrical electrodes for measuring the capacitive reactance or dielectric constant of the slurry flowing through in real time.

[0017] Preferably, the staggered comb-tooth cutters are two or more groups of counter-rotating cutters, the teeth of which are comb-shaped and staggered with each other, and are used to crush potatoes by squeezing and tearing.

[0018] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0019] The present invention physically avoids the air mixing caused by traditional high-speed shearing by combining the low-speed tearing of the staggered comb tooth hob with the micro-vibration grinding of the resonant grinding head, thereby reducing the possibility of foam generation from the source; the electrical properties of the slurry are monitored in real time by the slurry state sensor, and the initial ideal slurry reference value is compared by the controller to generate a foaming tendency index, and then according to the size of the index, the power of the vacuum pump, the resonant grinding head and the feeding speed of the screw feeder are coordinated and controlled by the first-level warning threshold and the second-level critical threshold, thereby achieving active, closed-loop suppression of foam generation; and, through model inspection and energy efficiency adaptive optimization steps, it is possible to judge whether the system model has failed based on the energy consumption-flux characteristic model and trigger online recalibration. At the same time, on the premise of ensuring that the foaming tendency index is lower than the safety limit, high-efficiency operating parameters are sought and maintained, thereby taking into account the stability of the production process, adaptability to raw material changes and economic benefits of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional split structure of the present invention Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the three-dimensional split structure of the present invention Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0025] Figure 6 This is a schematic diagram of the local three-dimensional structure of the present invention Figure 3 ;

[0026] Figure 7 This is a schematic diagram of the local three-dimensional structure of the present invention Figure 4 ;

[0027] Figure 8 It is a schematic flow chart of the pulverization method of the present invention.

[0028] In the figure: 100, coarse crushing chamber; 110, screw feeder; 120, offset comb hob; 200, anti-foam grinding chamber; 210, resonant grinding head; 220, negative pressure interface; 230, slurry state sensor; 300, power and transmission system; 310, first variable frequency motor; 320, second variable frequency motor and excitation source; 4, main body. DETAILED DESCRIPTION

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0030] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] like Figure 1-7 As shown, an embodiment of the present invention provides a raw material pulverizing device for producing non-foaming potato vermicelli, comprising: a main body 4, the interior of which is divided into a coarse crushing chamber 100 and a foam-suppressing grinding chamber 200; the coarse crushing chamber 100 is provided with a staggered comb tooth hob 120 for crushing the potato raw material into slurry, and a screw feeder 110 for pushing the potato raw material into the coarse crushing chamber 100; the foam-suppressing grinding chamber 200 is a sealed chamber, which is provided with a resonant grinding head 210 for micro-grinding the slurry; a negative pressure interface 220 for connecting to a vacuum pump is provided at the top of the foam-suppressing grinding chamber 200, and a slurry state sensor 230 for measuring the electrical properties of the slurry is provided on the inner wall of the outlet pipe;

[0032] The power and transmission system 300 includes a first variable frequency motor 310 that connects and drives the screw feeder 110 and the offset comb hob 120, and a second variable frequency motor and excitation source 320 that drives the resonant grinding head 210; and a controller that electrically connects the slurry state sensor 230, the first variable frequency motor 310, the second variable frequency motor and excitation source 320 and the vacuum pump.

[0033] In this embodiment, a systematic solution is provided to the problem in the prior art that a large amount of foam is easily generated during the potato crushing process, which affects the quality of subsequent vermicelli. The main body 4 of the device integrates coarse crushing and fine grinding functions. By decomposing the crushing process into two stages and supplemented by precise process control, the generation of foam is suppressed from the source. The staggered comb tooth hob 120 in the coarse crushing chamber 100 performs low-speed tearing crushing on the potatoes, preliminarily destroying the tissue structure, and avoiding the introduction of air due to high-speed shear. The slurry enters the sealed anti-foam grinding chamber 200, and the resonant grinding head 210 therein performs micro-grinding. At the same time, the vacuum pump connected to the negative pressure interface 220 creates and maintains a micro-negative pressure environment in the chamber, and the slurry state sensor 230 monitors the slurry state in real time. The controller coordinates and controls the power and transmission system 300 and the vacuum pump based on the data from the slurry state sensor 230. Through the combination of mechanical structure and intelligent control, the equipment can effectively suppress foam formation when crushing potato raw materials, thereby improving the quality and production stability of the final vermicelli product.

[0034] Furthermore, the resonant grinding head 210 is one or more metal probes driven by the second variable frequency motor and the excitation source 320 to reciprocate at ultrasonic or infrasonic frequencies.

[0035] In this embodiment, the specific structure of the resonant grinding head 210 is one or more metal probes, which are driven by the second variable frequency motor and the excitation source 320 and perform reciprocating vibrations with a small amplitude at a high frequency of ultrasonic or infrasonic waves. The working mode of the resonant grinding head 210 is not traditional rotary cutting, but rather uses the cavitation effect and high-frequency mechanical impact force generated by vibration to destroy the potato cell walls, thereby releasing starch granules without generating violent eddies, reducing the chance of air being drawn into the slurry, and avoiding the foaming problem caused by protein denaturation due to high-speed shearing.

[0036] Furthermore, the slurry state sensor 230 is composed of a pair of coaxial cylindrical electrodes for measuring the capacitive reactance or dielectric constant of the slurry flowing through in real time.

[0037] In this embodiment, the slurry state sensor 230 is a pair of coaxial cylindrical electrodes, which are installed on the inner wall of the outlet pipe of the anti-foam grinding chamber 200. When the potato slurry flows between the pair of electrodes, the controller measures the capacitive reactance or dielectric constant of the slurry in real time through the slurry state sensor 230. Since the dielectric constant of air is much lower than that of potato slurry, the mixing of tiny bubbles in the slurry will cause measurable changes in the overall electrical properties. In this way, the slurry state sensor 230 provides the controller with an accurate and continuous quantitative indicator to judge the foam content and generation trend in the slurry.

[0038] Furthermore, the staggered comb tooth cutters 120 are two or more groups of counter-rotating cutters, with the teeth being comb-shaped and staggered relative to each other, and are used to crush potatoes by squeezing and tearing.

[0039] In this embodiment, the staggered comb tooth cutter 120 is constructed as two or more groups of counter-rotating cutters, whose upper teeth are designed in a comb shape and staggered with each other. When the whole potato tuber is pushed in by the screw feeder 110, the pair of cutters rotates at a relatively low speed, and the potatoes are broken into irregular large particles by the squeezing and tearing action between the teeth. This working mode of the staggered comb tooth cutter 120 is to minimize the high-speed impact and cutting of the material while ensuring the destruction of potato tissue to release starch. This low shear force processing method reduces the risk of air mixing and protein denaturation from the source of feed, which is favorable for subsequent fine grinding and foam control.

[0040] A method for pulverizing raw materials for producing non-foaming potato vermicelli comprises the following steps: obtaining a reference parameter, wherein a controller is used to obtain an initial ideal slurry reference value of an ideal non-foaming slurry measured by a slurry state sensor 230, and further obtaining a material flux parameter determined by the working parameters of a first variable frequency motor 310 under different grinding powers, a grinding system energy consumption parameter represented by the real-time working current of the second variable frequency motor in the second variable frequency motor and the excitation source 320, and a slurry electrical characteristic parameter measured by the slurry state sensor 230; establishing a characteristic model, wherein the controller is used to obtain a reference value of an ideal non-foaming slurry measured by a slurry state sensor 230, and further obtain a material flux parameter determined by the working parameters of a first variable frequency motor 310 under different grinding powers, a grinding system energy consumption parameter represented by the real-time working current of the second variable frequency motor in the second variable frequency motor and the excitation source 320, and a slurry electrical characteristic parameter measured by the slurry state sensor 230; and establishing a characteristic model, wherein the controller is used to obtain a reference value of an ideal non-foaming slurry measured by a slurry state sensor 230, and further obtain a material flux parameter determined by the working parameters of a first variable frequency motor 310 under different grinding powers, and further obtain a grinding system energy consumption parameter represented by the real-time working current of the second variable frequency motor in the second variable frequency motor and the excitation source 320, and a slurry electrical characteristic parameter measured by the slurry state sensor 230. The controller is used to establish a grinding-electrical characteristic model for characterizing the intrinsic correlation between grinding energy consumption and slurry electrical characteristics, and an energy consumption-flux characteristic model for characterizing the intrinsic correlation between material flux and grinding energy consumption, based on material flux parameters, grinding system energy consumption parameters, and slurry electrical characteristic parameters; perform closed-loop control, and the controller is used to obtain the slurry electrical characteristic parameters in real time and compare them with the initial ideal slurry reference value to generate a foaming tendency index; specifically, if the dielectric constant or capacitive reactance of the slurry is used as the electrical characteristic parameter E, the foaming tendency index (F) can be defined as a real-time measurement value ( ) relative to the ideal non-foaming slurry benchmark value ( ), the calculation formula is, for example: ; This index is a dimensionless value, and the larger its value, the higher the foam content in the slurry; the controller coordinates and controls the operating parameters of the vacuum pump, the second variable frequency motor and the excitation source 320 and the first variable frequency motor 310 according to the size of the foaming tendency index to suppress foam generation.

[0041] In this embodiment, the controller learns and records the electrical characteristics of the slurry under ideal conditions as the initial ideal slurry baseline value. By systematically changing the operating parameters, multiple sets of flux-energy consumption-electrical characteristic data are collected. Furthermore, in the characteristic model establishment step, the controller uses the collected data for internal calculations to establish two interrelated models. The grinding-electrical characteristic model describes the relationship between the applied grinding energy and the change in the slurry electrical characteristics; the energy consumption-flux characteristic model reveals the energy standard required to process a specific batch of raw materials. During the production process, the controller compares the real-time reading of the slurry state sensor 230 with the baseline value to generate a foaming tendency index. Once the index shows a trend of increasing foam, the controller will adjust the vacuum level, grinding power, and feed rate in a coordinated manner according to the preset logic, thereby intervening before large-scale foam formation, ensuring a smooth production process and consistent product quality.

[0042] The main process of data acquisition in the establishment of the grinding-electrical characteristic model is that during the calibration process, the controller sets multiple discrete grinding power points (represented by the output power or working current of the second variable frequency motor and the excitation source 320, denoted as ) and operate the resonant grinding head 210. At each power point After the system is stable, the slurry state sensor 230 measures and records the corresponding slurry electrical characteristic parameters, such as dielectric constant or capacitive reactance, which are recorded as , thus obtaining a set of data pairs , the controller executes a preset regression algorithm based on the collected data pairs, for example, using a second-order polynomial for fitting, and establishes the following mathematical relationship as the grinding-electrical characteristic model: ;

[0043] in, is the predicted electrical characteristic parameter of the slurry, is the grinding power, and It is the fitting coefficient calculated and stored by the controller through standard algorithms such as the least squares method.

[0044] The main process of data collection in establishing the energy consumption-flux characteristic model is that during the calibration process, the controller sets multiple discrete material flux points (determined by the operating frequency or speed of the first variable frequency motor 310 driving the screw feeder 110, denoted as ) at each flux point After the system is stable, record the energy consumption parameters of the grinding system represented by the real-time working current of the second variable frequency motor and the second variable frequency motor in the excitation source 320 (recorded as ), thereby obtaining a set of data pairs Similarly, the controller performs regression analysis on this set of data pairs. For example, it also uses second-order polynomial fitting to establish the following mathematical relationship as the energy consumption-flux characteristic model: ,in, is the predicted grinding system energy consumption, is the material flux, and is another set of fitting coefficients calculated and stored by the controller.

[0045] When performing regulation, the controller can use the grinding-electrical characteristic model , according to the current resonant grinding head 210 power , predict a theoretical electrical characteristic value, and combine this value with the ideal benchmark value to more accurately calculate the foaming tendency index. During model inspection and optimization, the controller calculates the foaming tendency index based on the real-time material flux. , using the energy consumption-flux characteristic model Calculate theoretical energy consumption , then Real-time measurement of energy consumption A comparison is performed. If the deviation between the two continues to exceed the preset range (for example, greater than 5%), the model is deemed invalid.

[0046] Furthermore, performing closed-loop control further includes:

[0047] Set a first-level warning threshold and a second-level critical threshold;

[0048] When the foaming tendency index exceeds the first-level warning threshold, the controller is used to increase the vacuum degree in the anti-foam grinding chamber 200 and reduce the power of the resonant grinding head 210;

[0049] When the foaming tendency index exceeds the secondary critical threshold, or the rate of change of the index exceeds the preset upper limit of the out-of-control rate, the controller is further used to reduce the speed of the screw feeder 110 to reduce the feed amount on the basis of performing the aforementioned operations; here, the upper limit of the out-of-control rate refers to a critical value of the rate of change of the foaming tendency index over time, which can be calibrated experimentally or pre-set based on empirical data to characterize a situation where the amount of foam is increasing rapidly and there is a risk of getting out of control.

[0050] Two key thresholds are preset inside the controller: a first-level warning threshold and a second-level critical threshold. When the foaming tendency index just exceeds the first-level warning threshold, the system judges it as an early sign of foam, and the controller will start a first-level response. On the one hand, it instructs the vacuum pump to moderately increase the vacuum degree in the anti-foam grinding chamber 200, and actively remove tiny bubbles by using pressure changes; on the other hand, it instructs the second variable-frequency motor and the excitation source 320 to appropriately reduce the power of the resonant grinding head 210 to reduce foam generation from an energy perspective. If the foaming tendency index continues to rise and exceeds the second-level critical threshold, or its growth rate is too fast, indicating that the foam is at risk of getting out of control, the controller will start a second-level response. While executing all first-level response actions, it will add instructions to the first variable-frequency motor 310 to significantly reduce the speed of the screw feeder 110. This will directly reduce the system load by reducing the feed amount, and buy time and space for the anti-foam measures to take effect, thereby effectively avoiding downtime caused by foam problems.

[0051] Furthermore, the method also includes a model inspection and optimization step: the controller is used to continuously compare the unit material processing energy consumption calculated by the real-time flux and the real-time energy consumption to see whether it deviates from the model based on the energy consumption-flux characteristic model during equipment operation; if a continuous deviation occurs, the model is judged to be invalid and online recalibration is triggered; if no deviation occurs, the power of the resonant grinding head 210 is increased in small steps within a safety boundary to ensure that the foaming tendency index is lower than the first-level warning threshold, until the foaming tendency index shows a trend close to the first-level warning threshold, and the working parameters are returned to the previous stable state to achieve energy efficiency optimization.

[0052] During the stable operation of the equipment, the controller will use the established energy consumption-flux characteristic model to continuously perform self-calibration; the specific process is: the controller will measure the material flux in real time As input, the established energy consumption-flux characteristic model is substituted, namely , calculate the theoretical grinding system energy consumption under the current flux ; Then, the theoretical energy consumption The actual energy consumption measured by the real-time working current of the second variable frequency motor in the second variable frequency motor and the excitation source 320 Compare; if there is a continuous deviation between the two (for example If the frequency is continuously greater than a preset threshold value, such as 5%), the model is determined to be invalid due to changes in raw material characteristics, and the online recalibration program is automatically triggered to update the model to ensure the accuracy of control. On the premise of confirming that the model is valid, the controller will perform dynamic energy efficiency optimization. It takes not touching the first-level warning threshold as the safety bottom line and tries to gradually increase the power of the resonant grinding head 210 in small steps. After each increase, it will closely monitor the foaming tendency index. If the index remains stable, it is confirmed that the frequency increase is successful and maintained at a new, more efficient working point. If the index shows a trend of approaching the warning threshold, it indicates that the efficiency limit of the current working condition has been reached. The controller will immediately cancel the frequency increase and return to the last stable and efficient working point. This ensures that the equipment can not only operate stably in a foam-free state, but also adaptively seek and maintain the highest production efficiency while ensuring quality.

[0053] Furthermore, the step of obtaining the reference parameters begins by injecting the artificially prepared ideal non-foaming slurry into the anti-foam grinding chamber 200 to calibrate the initial ideal slurry reference value.

[0054] After formal production or replacement of batches of raw materials, the operator needs to perform a calibration operation first. This operation is initiated by injecting a small amount of ideal potato slurry that is artificially prepared and confirmed to be completely foam-free into the anti-foam grinding chamber 200. The controller drives the slurry to flow through the slurry state sensor 230 and records the electrical reading measured by the slurry state sensor 230 at this moment. This reading is stored by the controller as the initial ideal slurry reference value. The purpose of this step is to provide an accurate and reliable zero point reference for the entire intelligent control system, and to provide a solid and reliable initial basis for the calculation and judgment of the foaming tendency index in the subsequent production process.

[0055] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0056] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0057] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope of protection of the present invention.

Claims

1. A method for crushing raw materials for producing soak-free potato vermicelli, characterized in that: The following steps are involved: Obtaining benchmark parameters, obtaining the initial ideal slurry benchmark value of the ideal bubble-free slurry, and further obtaining material flux parameters, grinding system energy consumption parameters, and slurry electrical characteristic parameters under different grinding powers; Establishing a characteristic model, based on material flux parameters, grinding system energy consumption parameters and slurry electrical characteristic parameters, establishing a grinding-electrical characteristic model for characterizing the intrinsic relationship between grinding energy consumption and slurry electrical characteristics, and an energy consumption-flux characteristic model for characterizing the intrinsic relationship between material flux and grinding energy consumption; Perform closed-loop control to obtain slurry electrical characteristic parameters in real time and compare them with the initial ideal slurry baseline value to generate a foaming tendency index. Based on the size of the foaming tendency index, the operating parameters are coordinated to suppress foam generation; Executing closed-loop control further includes: setting a first-level warning threshold and a second-level critical threshold; When the foaming tendency index exceeds the first-level warning threshold, the vacuum degree in the grinding chamber is increased and the grinding power is reduced; When the foaming tendency index exceeds the secondary critical threshold, or the rate of change of the index exceeds the preset upper limit of the runaway rate, the feed rate is further reduced to reduce the feed amount on the basis of executing the above operations; When executing regulation, the controller can use the grinding-electrical characteristic model to predict a theoretical electrical characteristic value based on the current grinding power, and combine this value with the ideal benchmark value to more accurately calculate the foaming tendency index. When inspecting and optimizing the model, the controller calculates the theoretical energy consumption based on the real-time material flux using the energy consumption-flux characteristic model, and then compares the theoretical energy consumption with the real-time measured energy consumption. If the deviation between the two continues to exceed the preset range, the model is judged to be invalid.

2. The method for crushing raw materials for producing soak-free potato vermicelli according to claim 1, wherein: The method also includes model inspection and optimization steps: During equipment operation, based on the energy consumption-flux characteristic model, the unit material processing energy consumption calculated by the real-time flux and real-time energy consumption is continuously compared to see if it deviates from the model; if a continuous deviation occurs, the model is judged to be invalid and online recalibration is triggered; if no deviation occurs, the grinding power is increased in small steps within the safety boundary of ensuring that the foaming tendency index is lower than the first-level warning threshold, until the foaming tendency index shows a trend close to the first-level warning threshold, and the working parameters are rolled back to the previous stable state to achieve energy efficiency optimization.

3. The method for crushing raw materials for producing soak-free potato vermicelli according to claim 1, wherein: The step of obtaining the benchmark parameters begins by injecting an artificially prepared ideal bubble-free slurry into the grinding chamber to calibrate the initial ideal slurry benchmark value.

4. A raw material crushing device for producing non-soaking potato vermicelli, which is suitable for the raw material crushing method for producing non-soaking potato vermicelli according to any one of claims 1 to 3, characterized in that: include: The main body is divided into a coarse crushing chamber and a foam suppression grinding chamber; The coarse crushing chamber is provided with a staggered comb tooth hob for crushing the potato raw materials into pulp, and a screw feeder for pushing the potato raw materials into the coarse crushing chamber; The anti-foam grinding chamber is a sealed chamber that houses a resonant grinding head for micro-grinding the slurry. A negative pressure interface for connecting to a vacuum pump is located at the top of the anti-foam grinding chamber, and a slurry state sensor for measuring the electrical properties of the slurry is located on the inner wall of the outlet pipe. The power and transmission system includes a first variable frequency motor connected to and driving the screw feeder and the offset comb hob, and a second variable frequency motor and an excitation source driving the resonant grinding head; and a controller electrically connected to the slurry state sensor, the first variable frequency motor, the second variable frequency motor, the excitation source and the vacuum pump.

5. The raw material crushing equipment for producing soak-free potato vermicelli according to claim 4 is characterized in that: The resonant grinding head is one or more metal probes driven by a second variable frequency motor and an excitation source to vibrate back and forth at an ultrasonic or infrasonic frequency.

6. The raw material crushing equipment for producing soak-free potato vermicelli according to claim 4, characterized in that: The slurry state sensor consists of a pair of coaxial cylindrical electrodes and is used to measure the capacitive reactance or dielectric constant of the slurry flowing through it in real time.

7. The raw material crushing equipment for producing soak-free potato vermicelli according to claim 4, characterized in that: The staggered comb tooth cutter consists of two or more sets of counter-rotating cutters with comb-shaped teeth that are staggered with each other. They are used to crush potatoes by squeezing and tearing.

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