Electromagnetic heating pea starch gelatinizing machine

Abstract

The utility model relates to vermicelli equipment, in particular to an electromagnetic heating pea starch gelatinization machine, which comprises a feeding pump, a boiling device, a vacuum separation chamber and an extrusion forming device, and is different from the prior art that the boiling device comprises a magnetic conduction cylinder, an electromagnetic coil is wound outside the magnetic conduction cylinder and is connected with a power line, and the vacuum separation chamber is connected with the power line. The power line is connected with a controller, and the controller comprises a power adjusting module and a frequency generating module. Compared with the prior art, the device has the advantages of accurate temperature control, good heating response speed, efficient energy utilization and stable product quality guarantee.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bean vermicelli equipment, specifically an electromagnetic heating's pea starch pasting machine. BACKGROUND

[0002] In bean vermicelli production, starch pasting is the most important. First, the degree of pasting directly determines the taste of bean vermicelli. Moderate pasting can make bean vermicelli smooth and tough, while insufficient pasting makes it hard to chew, and excessive pasting makes it soft and lose elasticity. In terms of appearance, good pasting can maintain the shape and color of bean vermicelli and ensure the appearance of the product. In terms of performance, appropriate pasting helps to shape the gel properties of bean vermicelli, making it stable during cooking.

[0003] Different starches have different pasting characteristics. For example, corn starch starts to paste at 62-72℃ and completely pastes at 75-85℃; potato starch starts to paste at 59-67℃ and completely pastes at 68-78℃; pea starch also has its specific range. In large-scale production, efficient pasting can shorten the production cycle, improve overall output efficiency, reduce equipment idle and energy consumption, reduce costs, and enhance enterprise competitiveness. Therefore, precise control of starch pasting is a key link to ensure the quality and production efficiency of bean vermicelli and is crucial to the development of the entire bean vermicelli industry.

[0004] The pasting temperature of pea starch may be more conducive to improving quality by following a certain curve. In the initial pasting stage, a relatively low temperature, such as 65-70℃, is used to allow starch particles to slowly absorb water and swell, which helps to maintain the integrity of starch molecular structure and reduces the breakage of molecular chains or uneven aggregation caused by rapid heating. As the pasting process progresses, the temperature is gradually increased to 75-80℃ to promote the complete pasting of starch and form a uniform colloid system. In the later pasting stage, the temperature is appropriately reduced, for example, to 70-75℃, which can make the starch gel structure more stable and avoid texture deterioration or accelerated aging caused by excessive pasting. This temperature curve change can better control the pasting process of starch and optimize the physical and chemical properties of starch, thereby improving the quality indicators such as taste, toughness, and transparency of bean vermicelli.

[0005] Chinese utility model patent CN217202571U discloses a starch pasting system, which uses an inner cylinder and an outer cylinder structure for the cooking pot. The heating cavity between the inner cylinder and the outer cylinder uses steam as a heat source, and heat transfer is achieved through steam inlets and outlets to control the temperature of the inner cylinder cooking cavity and provide heat for starch pasting. The feeding and discharging assemblies are located at both ends of the inner cylinder to ensure smooth material entry and exit. The inner cylinder and the outer cylinder act as pressure vessels to ensure overall sealing through a sealing ring. However, there are still some defects: the steam heating system has large thermal inertia and slow response speed, making it almost impossible to heat pea starch according to a specific and precise temperature curve. Even if an electric heating method is used, the heat response speed is not ideal due to the need for heat conduction in the inner cylinder. Practical new type content

[0006] In view of the above defects or one of the defects in the prior art, the utility model discloses an electromagnetic heating's pea starch pasting machine, and the technical scheme adopted is:

[0007] An electromagnetic heating's pea starch pasting machine, including feed pump, cooking device, vacuum separation chamber and extrusion forming device, and the cooking device includes the magnetic cylinder, and the magnetic cylinder is wound with the electromagnetic coil, and the electromagnetic coil is connected with the power line, and the power line is connected with the controller, and the controller includes the power regulation module and the frequency generating module.

[0008] Further, the electromagnetic coil is covered by the non-magnetic heat insulation sleeve, and the non-magnetic heat insulation sleeve is fixedly connected with the magnetic cylinder.

[0009] Further, the non-magnetic heat insulation sleeve is made of ceramic fiber material, and the outer surface is provided with heat dissipation fins.

[0010] Further, the two ends of the magnetic cylinder are closed by the front end cover and the rear end cover, the front end cover and the rear end cover are rotatably arranged on the bearing, the auger is fixedly arranged on the rotating shaft between the front end cover and the rear end cover, the feed inlet is arranged close to the rear end of the magnetic cylinder, the discharge outlet is arranged close to the front end of the magnetic cylinder, the feed inlet is connected with the feed pump, and the discharge outlet is connected with the vacuum separation chamber.

[0011] Further, the annular scraper that is tightly matched with the magnetic cylinder is installed in the magnetic cylinder, the inner diameter of the annular scraper is greater than or equal to the outer diameter of the auger, the rear end of the annular scraper is fixedly connected with two or more pull rods, and the pull rods pass through the rear end cover and are connected with the pull ring.

[0012] Further, the edge of the annular scraper is provided with a flexible scraper strip, the flexible scraper strip is made of silica gel material, and is tightly attached to the inner wall of the magnetic cylinder.

[0013] Further, the surface of the helical blade of the auger is coated with a Teflon coating.

[0014] Further, one or more sealing rings are arranged between the rotating shaft and the front end cover and / or the rear end cover.

[0015] Further, the sealing ring is a fluorine rubber O-shaped ring and has at least two sealing lips.

[0016] Further, the controller comprises a storage module which stores a temperature curve for the properties of the pea starch; and the storage module is electrically connected to a main control chip of the controller, during the start-up or operation of the device, the main control chip reads the temperature curve data in the storage module, and controls the power adjustment module and the frequency generation module in real time according to the data, so as to control the alternating magnetic field generated by the electromagnetic coil.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] Precise temperature control: through the power adjustment module and the frequency generation module in the controller, the alternating magnetic field generated by the electromagnetic coil can be flexibly and accurately regulated, thereby realizing precise control of the heating temperature of the pea starch in the magnetic cylinder. According to the specific temperature curve required for the gelatinization of the pea starch, the temperature rise and fall can be accurately adjusted at different stages such as the initial, middle and late stages of gelatinization, thereby avoiding the problem of poor starch gelatinization effect caused by inaccurate temperature control, effectively ensuring that the change of the starch molecular structure meets the ideal state, and improving the quality indexes such as the final taste, toughness and transparency of the vermicelli.

[0019] Good heating response speed: compared with the traditional steam heating system which has large thermal inertia and slow response speed, and the situation that the heat response of part of the electric heating method is not ideal in continuous and rapid production, the utility model adopts electromagnetic heating method, which can quickly realize temperature adjustment. When the heating power needs to be changed or the temperature needs to be adjusted, the controller can instantly change the parameters such as current and frequency output to the electromagnetic coil, so that the magnetic cylinder can quickly generate corresponding heat change, meet the temperature adjustment requirements such as rapid heating and cooling at different stages in efficient production, greatly shorten the entire production cycle, and improve the overall output efficiency.

[0020] Efficient energy utilization: electromagnetic heating is direct induction heating of the magnetic cylinder, and the heat is concentrated in the magnetic cylinder where the pea starch to be gelatinized is located, thereby reducing the energy waste caused by pipeline transmission and heat loss in the steam heating process. Moreover, the precise temperature control also avoids the problems of repeated heating and additional energy consumption caused by excessively high or low temperature, and can significantly reduce energy costs and improve enterprise economic benefits in the long-term large-scale vermicelli production process.

[0021] Stable product quality guarantee: since the heating can be accurately carried out according to the preset temperature curve conducive to the gelatinization of the pea starch, the quality of each gelatinization process can be maintained at a stable and high level, thereby guaranteeing the consistency of the quality of the vermicelli products produced in the subsequent production. The uneven quality of the vermicelli in terms of taste and appearance caused by unstable gelatinization is avoided, which helps to improve the competitiveness of the products in the market, enhance the brand image of the enterprise, and positively promote the high-quality development of the entire vermicelli industry. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the utility model.

[0023] Figure 2 It is a structure schematic view of the utility model hidden magnetic cylinder 11, electromagnetic coil 12 and non-magnetic heat insulation sleeve behind.

[0024] Figure 3 It is a sectional view of the utility model.

[0025] Figure 4 It is Figure 3 It is the local enlarged view of A in the middle.

[0026] Figure 5 It is Figure 3 It is the local enlarged view of B in the middle. DETAILED DESCRIPTION

[0027] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation of the utility model.

[0028] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "communication" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0029] The embodiments of the utility model are described below by specific concrete examples, and the other advantages and effects of the utility model can be easily understood by the skilled person in the art from the content disclosed in the specification, obviously, the described examples are part of the examples of the utility model, rather than all the examples. Based on the examples in the utility model, all other examples obtained by the ordinary skilled person in the art without making creative labor belong to the scope of protection of the utility model.

[0030] As Figures 1-5As shown, an electromagnetically heated pea starch gelatinizing machine includes a feed pump, a cooking device 1, a vacuum separation chamber, and an extrusion molding device. The cooking device 1 includes a magnetic cylinder 11, around which an electromagnetic coil 12 is wound. The electromagnetic coil 12 is connected to a power supply line, which is connected to a controller. The controller includes a power adjustment module and a frequency generation module. The controller includes a storage module that stores temperature curves specific to the characteristics of pea starch. This storage module is electrically connected to the controller's main control chip. During equipment startup or operation, the main control chip reads the temperature curve data from the storage module and, based on this data, adjusts the power adjustment module and the frequency generation module in real time to control the alternating magnetic field generated by the electromagnetic coil.

[0031] The magnetic cylinder 11 is closed at both ends by a front cover 14 and a rear cover 15. The front cover 14 and the rear cover 15 are connected by a rotating shaft 20 via a bearing 16. An auger 17 is fixed on the rotating shaft 20 between the front cover 14 and the rear cover 15. A feed inlet 18 is provided near the rear end of the magnetic cylinder 11, and a discharge outlet 19 is provided near the front end of the magnetic cylinder 11. The feed inlet 18 is connected to a feed pump, and the discharge outlet 19 is connected to a vacuum separation chamber.

[0032] The following is a summary of the working process of this electromagnetically heated pea starch gelatinizer:

[0033] Preparation stage

[0034] When the equipment is started, the main control chip in the controller will read the temperature curve data that has been pre-saved in the storage module for the characteristics of pea starch. This data will serve as the basis for temperature control in the entire gelatinization process.

[0035] Feeding stage

[0036] Pea starch raw material (usually mixed with an appropriate amount of water in a certain proportion) is conveyed through feed inlet 18 to the magnetic cylinder 11 of cooking device 1 by feed pump. Feed inlet 18 is located at the rear end of magnetic cylinder 11, providing the material basis for subsequent gelatinization process.

[0037] gelatinization stage

[0038] * Heating start: After the power is turned on, the power line supplies power to the electromagnetic coil 12, and the controller controls the electromagnetic coil 12 to generate an alternating magnetic field according to the read temperature curve data, using the power regulation module and the frequency generation module. The alternating magnetic field acts on the magnetic cylinder 11 (because it has magnetic conductivity), causing the magnetic cylinder 11 to generate heat by induction, and then heating the pea starch material in the cylinder. During the gelatinization process, the main control chip will continuously adjust the power regulation module and the frequency generation module according to the stored temperature curve data in real time, accurately control the magnetic field generated by the electromagnetic coil, and make the temperature in the magnetic cylinder change according to the preset curve that is beneficial to the gelatinization of pea starch, such as maintaining a relatively low temperature (such as 65-70°C) at the beginning of gelatinization to make the starch particles slowly absorb water and swell; as the gelatinization progresses, the temperature is raised to 75-80°C to promote the gelatinization of the starch; and in the later stage, the temperature is appropriately lowered to 70-75°C to stabilize the gel structure of the starch.

[0039] * Stirring assistance: At the same time, the rotating shaft 20 can rotate under the support of the front end cover 14 and the rear end cover 15 through the bearing 16, and the auger 17 fixed on the rotating shaft 20 rotates with the rotating shaft 20 to stir the pea starch material being heated and gelatinized in the magnetic cylinder 11, so that the material is heated more uniformly, avoiding local overheating or uneven gelatinization, and further ensuring the gelatinization effect.

[0040] Discharging stage

[0041] After being fully gelatinized, the pea starch material is pushed out of the discharge port 19 located at the front end of the magnetic cylinder 11 by the auger 17, and the discharge port 19 is connected to the vacuum separation chamber. The gelatinized material enters the vacuum separation chamber for subsequent processing procedures (such as removing bubbles), providing the subsequent extrusion molding device with materials that meet the requirements for further processing to make vermicelli products.

[0042] The electromagnetic heating pea starch gelatinization machine of the present embodiment has many beneficial effects due to its structure:

[0043] Precise temperature control optimizes gelatinization effect: The electromagnetic coil is wound around the magnetic cylinder of the cooking device, connected to a controller with a power regulation module and a frequency generation module, and the controller storage module has a temperature curve for pea starch. The main control chip can adjust in real time according to this. This allows the temperature in the magnetic cylinder to be accurately controlled according to the ideal curve during gelatinization. For example, low temperature (65-70°C) at the beginning to maintain the integrity of the starch molecular structure, medium temperature (75-80°C) to promote complete gelatinization, and low temperature (70-75°C) at the end to stabilize the gel structure, ultimately improving the taste, toughness and transparency of the vermicelli.

[0044] High-efficiency heating improves production efficiency: Compared with traditional steam heating, electromagnetic heating has small thermal inertia and fast response speed. Once the temperature needs to be adjusted, the controller quickly changes the power supply parameters of the electromagnetic coil, and the magnetic cylinder instantly changes the heating, meeting the frequent temperature rising and falling requirements in continuous and rapid production, greatly shortening the production cycle and improving the overall output efficiency.

[0045] Uniform stirring ensures product uniformity: The magnetic cylinder is closed at both ends by the front and rear end covers, the shaft is installed on the end cover through the bearing, and the auger is fixed on the shaft and located inside the magnetic cylinder. During gelatinization, the auger rotates with the shaft, continuously stirring the material, ensuring uniform heating of pea starch and avoiding local overheating or uneven gelatinization, ensuring stable and consistent product quality in each batch.

[0046] Reasonable layout facilitates material handling: The inlet is connected to the feeding pump near the rear end of the magnetic cylinder, and the outlet is connected to the vacuum separation chamber near the front end. This layout meets the processing flow before and after the material is gelatinized. The material smoothly enters from the rear end, is pushed to the next process after gelatinization from the front end, realizes continuous and efficient production operation, and reduces material residue and processing difficulty.

[0047] Energy saving, consumption reduction and production cost reduction: The electromagnetic coil directly induces heat to the magnetic cylinder, and the heat is concentrated on the material, reducing energy waste caused by pipeline transmission and heat dissipation in steam heating. Precise temperature control also avoids excessive or insufficient heating, which leads to additional energy consumption. In long-term large-scale production, energy costs are significantly reduced, and economic benefits of enterprises are improved.

[0048] In another preferred embodiment, the electromagnetic coil 12 is covered by a non-magnetic heat insulation sleeve 13, and the non-magnetic heat insulation sleeve 13 is fixedly connected with the magnetic cylinder 11. The non-magnetic heat insulation sleeve 13 provides a physical protection barrier for the electromagnetic coil 12, avoiding mechanical damage such as collision and friction during work, ensuring the structural integrity of the electromagnetic coil, maintaining stable electromagnetic induction performance, and ensuring reliable operation of the heating link of the whole gelatinization machine. On the one hand, its heat insulation property effectively prevents the heat generated by the electromagnetic coil 12 from being dissipated to the surrounding environment, so that more heat can be concentrated on the magnetic cylinder 11, improving energy utilization efficiency and avoiding energy waste on unnecessary environmental heat dissipation. On the other hand, it prevents external environmental heat from entering the electromagnetic coil area, prevents external temperature fluctuations from interfering with the electrical performance of the electromagnetic coil, ensures stable work according to the preset parameters, and precisely controls the heating process of the magnetic cylinder. The design of fixed connection with the magnetic cylinder 11 makes the sleeve an organic part of the equipment structure, enhances the compactness of the overall structure, reduces the risk of part loosening and displacement, and improves the safety of equipment operation. At the same time, this close connection facilitates more efficient heat transfer between the sleeve and the magnetic cylinder, and cooperatively improves the work efficiency of the gelatinization machine.

[0049] In another preferred embodiment, the non-magnetic conductive sleeve 13 is made of ceramic fiber material, and the outer surface is provided with heat dissipation fins. The ceramic fiber material has excellent heat insulation performance, which can effectively block the heat in the magnetic conductive cylinder from dissipating outward, ensuring that the heat is concentrated for the pasting of pea starch, improving energy utilization efficiency, and reducing unnecessary energy loss. The heat dissipation fins on the outer surface can dissipate the small amount of heat absorbed by the sleeve itself in time, prevent the sleeve from overheating and affecting its performance or service life, ensure the stable operation of the equipment for a long time, and reduce the risk of equipment failure caused by overheating.

[0050] In another preferred embodiment, an annular scraper 22 is installed in the magnetic conductive cylinder 11 and tightly fits with it, the inner diameter of the annular scraper 22 is greater than or equal to the outer diameter of the auger 17; the rear end of the annular scraper 22 is fixedly connected with two or more pull rods 23, and the pull rods 23 pass through the rear end cover 15 and are connected with a pull ring 24. The annular scraper tightly fits with the magnetic conductive cylinder, and the inner diameter is greater than or equal to the outer diameter of the auger. During the operation of the equipment, the residual starch adhered to the inner wall of the magnetic conductive cylinder can be scraped off. This avoids the repeated heating and pasting of residual starch, which affects the quality of subsequent products, ensures the purity of each batch of pea starch pasting, and improves the stability of product quality.

[0051] In another preferred embodiment, the edge of the annular scraper 22 is provided with a flexible scraping strip made of silica gel material and tightly fitted with the inner wall of the magnetic conductive cylinder 11. The flexible scraping strip made of silica gel material is soft in texture, which can tightly fit with the inner wall of the magnetic conductive cylinder to ensure the effect of scraping off residual starch, and will not scratch the inner wall of the magnetic conductive cylinder, protecting the structural integrity of the equipment and prolonging the service life of the magnetic conductive cylinder. The tightly fitted scraping strip can further improve the cleaning effect of residual starch, minimize material residue, ensure that the subsequent pasting process is not disturbed by impurities, and maintain the stability of product quality.

[0052] In another preferred embodiment, the surface of the spiral blade of the auger 17 is coated with a Teflon coating. The Teflon coating has extremely low friction coefficient and excellent non-stick property, which can effectively prevent pea starch from sticking to the auger blade during stirring. This ensures smooth flow of materials in the magnetic conductive cylinder, improves stirring efficiency, avoids uneven stirring caused by material sticking, and improves pasting uniformity. The non-stick property makes it easier to clean the equipment, reduces downtime for cleaning, improves equipment utilization, and reduces labor maintenance costs.

[0053] In another preferred embodiment, one or more sealing rings 21 are provided between the rotating shaft 20 and the front end cover 14 and / or the rear end cover 15. The sealing rings can effectively prevent material leakage, prevent pea starch paste from leaking out of the gap between the rotating shaft and the end cover, ensure the sealing of the equipment, maintain the cleanliness of the production environment, and avoid material waste. The sealing rings can also prevent foreign matter from entering the magnetic cylinder through the gap, thereby preventing the foreign matter from contaminating the pea starch material being gelatinized and ensuring the safety and quality of the product.

[0054] In another preferred embodiment, the sealing ring 21 is a fluororubber O-ring with at least two sealing lips. Fluororubber has excellent properties such as high temperature resistance and chemical corrosion resistance, and can adapt to the harsh environment around the magnetic cylinder, such as high temperature and possible contact with chemicals, to ensure the long-term reliable operation of the sealing ring. The multi-lip structure further enhances the sealing effect, provides multiple protection, minimizes the risk of leakage, ensures the stable operation of the equipment, and reduces the number of equipment failure repairs caused by sealing problems.

[0055] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An electromagnetic heating machine for pasting of pea starch, comprising a feed pump, a cooking device (1), a vacuum separation chamber and an extrusion molding device, characterized in that, The decocting device (1) comprises a magnetic conducting cylinder (11), an electromagnetic coil (12) is arranged outside the magnetic conducting cylinder (11), the electromagnetic coil (12) is connected with a power line, the power line is connected with a controller, the controller comprises a power adjusting module and a frequency generating module.

2. An electromagnetic heated pea starch gelatinization machine according to claim 1, characterized in that, The electromagnetic coil (12) is covered by a non-magnetic conducting heat insulation sleeve (13), and the non-magnetic conducting heat insulation sleeve (13) is fixedly connected with the magnetic conducting cylinder (11).

3. An electromagnetic heated pea starch gelatinization machine according to claim 2, characterized in that, The non-magnetic conducting heat insulation sleeve (13) is made of ceramic fiber material, and a heat dissipation fin is arranged on the outer surface of the non-magnetic conducting heat insulation sleeve (13).

4. The electromagnetic heating pea starch gelatinization machine according to claim 1, characterized in that, The two ends of the magnetic conducting cylinder (11) are closed by a front end cover (14) and a rear end cover (15), the front end cover (14) and the rear end cover (15) are rotatably arranged on the rotating shaft (20) through bearings (16), the rotating shaft (20) between the front end cover (14) and the rear end cover (15) is fixedly arranged with an auger (17), a feeding port (18) is arranged close to the rear end of the magnetic conducting cylinder (11), a discharging port (19) is arranged close to the front end of the magnetic conducting cylinder (11), the feeding port (18) is connected with a feeding pump, and the discharging port (19) is connected with a vacuum separation chamber.

5. An electromagnetic heated pea starch gelatinization machine according to claim 4, characterized in that, An annular scraper (22) is arranged in the magnetic conducting cylinder (11) and tightly matches the magnetic conducting cylinder (11), the inner diameter of the annular scraper (22) is greater than or equal to the outer diameter of the auger (17), the rear end of the annular scraper (22) is fixedly connected with two or more pull rods (23), and the pull rods (23) pass through the rear end cover (15) and are connected with a pull ring (24).

6. An electromagnetic heated pea starch gelatinization machine according to claim 5, characterized in that, Flexible scraping strips are arranged on the edge of the annular scraper (22), the flexible scraping strips are made of silica gel material and tightly match the inner wall of the magnetic conducting cylinder (11).

7. An electromagnetic heated pea starch gelatinization machine according to claim 4, characterized in that, The surface of the helical blade of the auger (17) is coated with a Teflon coating.

8. An electromagnetic heated pea starch gelatinization machine according to claim 4, characterized in that, One or more sealing rings (21) are arranged between the rotating shaft (20) and the front end cover (14) and / or the rear end cover (15).

9. An electromagnetic heated pea starch gelatinization machine according to claim 8, characterized in that, The sealing ring (21) is a fluorine rubber O-shaped ring and has at least two sealing lips.

10. The electromagnetic heating pea starch gelatinization machine according to claim 1, characterized in that, The controller comprises a storage module, the storage module stores temperature curves for characteristics of pea starch, the storage module is electrically connected with a main control chip of the controller, during starting or running of the device, the main control chip reads temperature curve data in the storage module, and the power adjusting module and the frequency generating module are controlled in real time according to the data to control the electromagnetic coil to generate an alternating magnetic field.

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