Gelatinization reaction system for rice starch

Abstract

The utility model provides a gelatinization reaction system for rice starch. The gelatinization reaction system comprises a stirring reaction tank, a hot water system and a temperature control system, a hot water jacket is arranged outside the stirring reaction tank, and a uniform mixing stirrer is arranged inside the stirring reaction tank; the hot water system comprises a hot water storage tank and a hot water constant temperature system connected with the hot water storage tank; the temperature control system is arranged between the stirring reaction tank and the hot water system, is connected with the water outlet end of the hot water storage tank and the water inlet end of the hot water jacket through a water pipe, and introduces hot water in the hot water storage tank into the hot water jacket outside the stirring reaction tank; the water outlet end of the hot water jacket is connected with the water inlet end of the hot water storage tank, so that water circulation is formed between the hot water storage tank and the hot water jacket. The utility model relates to a gelatinization reaction system for rice starch, which can realize accurate temperature rise and temperature control of materials, and can realize full and uniform mixing of viscous materials at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of food processing equipment, in particular to a gelatinization reaction system for rice starch. Background Art

[0002] Compared with other cereal starch particles, rice starch particles are very small and more uniform in size, so the texture is extremely delicate; rice starch is whiter in color and has no odor or peculiar smell of the grain itself, so rice starch is often used as a raw material in the processing of various foods.

[0003] Gelatinized rice starch absorbs water quickly, has a creamy, smoother texture, and a fatty mouthfeel. It's also easily spreadable, offering improved processability and potentially improving the quality of food products. Therefore, starch is often gelatinized during or after production. Rice starch prepared by methods like water immersion and enzymatic hydrolysis is typically gelatinized, while rice starch prepared by methods like alkali immersion and solvent washing is considered raw rice starch.

[0004] The production process of rice starch may involve gelatinization reactions, as may the gelatinization process of raw rice starch. The essence of rice starch gelatinization is the process by which water enters the starch molecules, causing them to change from ordered to disordered. A higher degree of starch gelatinization often results in a better texture and is easier to digest and absorb. Due to the unique granular properties of rice starch, the gelatinized rice starch has a very high viscosity. Uneven stirring can easily lead to incomplete gelatinization, affecting the gelatinization process and the product quality of the gelatinized rice starch. Furthermore, controlling the gelatinization temperature directly affects the gelatinization degree of rice starch. Low gelatinization temperatures will directly affect the gelatinization reaction efficiency, while excessively high gelatinization temperatures will cause irreversible denaturation of the rice starch, reducing the degree of gelatinization. Therefore, precisely controlling the gelatinization temperature at a specific value or within a small fluctuation range will help improve the gelatinization efficiency and gelatinization degree of rice starch. Utility Model Content

[0005] The utility model aims to provide a rice starch gelatinization reaction system which can realize accurate heating and temperature control of materials and can also realize sufficient mixing of viscous materials.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A rice starch gelatinization reaction system comprises a stirring reaction tank, a hot water system and a temperature control system;

[0008] The stirred reaction tank is provided with a hot water jacket on the outside and a homogenizing stirrer on the inside;

[0009] The hot water system includes a hot water storage tank and a hot water constant temperature system connected to the hot water storage tank;

[0010] The temperature control system is arranged between the stirred reactor and the hot water system, and is connected to the water outlet of the hot water storage tank and the water inlet of the hot water jacket via a water pipe, so as to introduce the hot water in the hot water storage tank into the hot water jacket outside the stirred reactor; the temperature control system includes a hot water inlet solenoid valve and a hot water pump arranged on the water pipe, and also includes a tank temperature probe arranged in the hot water storage tank, and the tank temperature probe is connected to the hot water inlet solenoid valve via a second PLC and controls the opening of the hot water inlet solenoid valve;

[0011] The water outlet end of the hot water jacket is connected to the water inlet end of the hot water storage tank, so that water circulation is formed between the hot water storage tank and the hot water jacket.

[0012] Furthermore, the hot water jacket is arranged around the outside of the stirred reactor, and the lower part of the hot water jacket is provided with a jacket water inlet end, and the upper part of the hot water jacket is provided with a jacket water outlet end.

[0013] Furthermore, the homogenizing mixer is a fishbone-type multi-layer mixer, which consists of a middle vertical rod and multi-layer stirring rods symmetrically arranged on both sides of the vertical rod, and the ends of the stirring rods are provided with guide plates.

[0014] Furthermore, the guide plate provided at the end of the stirring rod located at the upper part of the fishbone type multi-layer stirrer is provided to be tilted downward, and the guide plate provided at the end of the stirring rod located at the lower part of the fishbone type multi-layer stirrer is provided to be tilted upward.

[0015] Furthermore, a motor for driving the homogenizer to rotate is provided on the upper portion of the stirred reaction tank, and an output end of the motor is connected to a vertical rod of the homogenizer.

[0016] Furthermore, the hot water constant temperature system includes a heating rod, a hot water temperature probe and a first PLC. The heating rod is arranged inside the hot water storage tank, and the hot water temperature probe is arranged in the water outlet pipe of the hot water storage tank and is linked with the first PLC and the heating rod.

[0017] Furthermore, the temperature probe in the tank is arranged at the center position in the stirred reaction tank.

[0018] Furthermore, the hot water jacket is provided with a jacket water inlet at the lower part and a jacket water outlet at the upper part, the hot water storage tank is provided with a tank water outlet at the lower part and a tank water inlet at the upper part, the water outlet of the hot water storage tank is connected to the water inlet of the hot water jacket through a temperature control system, and the jacket water outlet is connected to the tank water inlet through a water pipe to form a water circulation, that is, a circulation of hot water storage tank-tank water outlet-temperature control system-jacket water inlet-hot water jacket-jacket water outlet-water pipe-tank water inlet-hot water storage tank is formed.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] The present invention provides a rice starch gelatinization reaction system that helps achieve precise heating and efficient gelatinization reaction control of rice starch materials within a single reactor. The system primarily consists of a stirred reactor, a hot water system, and a temperature control system. The stirred reactor is equipped with a homogenizer that stirs the viscous rice starch material more evenly. A temperature probe, linked to the hot water inlet solenoid valve in the reactor jacket, is located at the center of the reactor. After setting the gelatinization temperature, the opening of the hot water inlet solenoid valve is controlled by a programmable logic controller (PLC). This allows for precise control of the temperature rise of the material within the tank and accurate temperature maintenance after heating, preventing large temperature fluctuations during the rice starch gelatinization process that could affect the gelatinization reaction efficiency and gelatinization quality of the rice starch. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the rice starch gelatinization reaction system of the present invention;

[0022] Figure 2 Schematic diagram of the structure of the homogenizer.

[0023] In the figure, 1-homogeneous mixer, 2-tank temperature probe, 3-hot water pump, 4-hot water inlet solenoid valve, 5-hot water temperature probe, 6-first PLC, 7-heating rod, 8-second PLC, 9-hot water jacket, 10-tank water inlet end, 11-tank water outlet end, 12-water pipe, 13-jacket water inlet end, 14-jacket water outlet end, 15 motor, 16 vertical rod, 17-guide plate, 18-stirring rod, 19-jacket temperature probe. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 As shown, a rice starch gelatinization reaction system includes a stirring reaction tank, a hot water system and a temperature control system;

[0026] The stirred reaction tank is provided with a hot water jacket 9 on the outside and a homogenizing stirrer 1 on the inside;

[0027] The hot water system includes a hot water storage tank and a hot water constant temperature system connected to the hot water storage tank;

[0028] The temperature control system is arranged between the stirred reactor and the hot water system, and connects the water outlet end 11 of the hot water storage tank and the water inlet end of the hot water jacket 9 through a water pipe 12, so as to introduce the hot water in the hot water storage tank into the hot water jacket 9 outside the stirred reactor; the temperature control system includes a hot water inlet solenoid valve 4 and a hot water pump 3 arranged on the water pipe 12, and also includes a tank temperature probe 2 arranged in the hot water storage tank and a jacket temperature probe 19 arranged in the hot water jacket 9. The tank temperature probe 2 is connected to the hot water inlet solenoid valve 4 through a second PLC 8 and controls the opening of the hot water inlet solenoid valve 4;

[0029] The water outlet end of the hot water jacket 9 is connected to the water inlet end of the hot water storage tank, so that water circulation is formed between the hot water storage tank and the hot water jacket 9.

[0030] Furthermore, the hot water jacket 9 is arranged around the outside of the stirred reactor, and a jacket water inlet end 13 is provided at the lower part of the hot water jacket 9 and a jacket water outlet end 14 is provided at the upper part.

[0031] Furthermore, if Figure 2 As shown, the homogenizing mixer 1 is a fishbone type multi-layer mixer, which consists of a middle vertical rod 16 and a plurality of layers of stirring rods 18 symmetrically arranged on both sides of the vertical rod 16. The ends of the stirring rods 18 are provided with guide plates 17. The fishbone type multi-layer mixer is provided with multiple layers of symmetrically arranged stirring rods 18 on both sides of the vertical rod 16. The stirring rods 18 symmetrically arranged on both sides of the vertical rod 16 at the same height are one layer, and the stirring rods 18 are preferably arranged as an even number of layers.

[0032] Furthermore, the guide plate 17 provided at the end of the stirring rod 18 at the upper part of the fishbone type multilayer agitator is arranged to be tilted downward, and the guide plate 17 provided at the end of the stirring rod 18 at the lower part of the fishbone type multilayer agitator is arranged to be tilted upward; such an arrangement can make the upper layer material in the stirring reaction tank flow downward, while making the lower layer material in the stirring reaction tank flow upward, greatly improving the degree of uniform mixing between the viscous materials, and helping to improve the gelatinization uniformity and gelatinization efficiency of rice starch; the stirring rod 18 at the upper part of the fishbone type multilayer agitator is all the stirring rods 18 from the middle upper part of the vertical rod 16, or all the stirring rods 18 located at the middle upper part of the liquid surface; similarly, the arrangement of the stirring rod 18 at the lower part of the fishbone type multilayer agitator is known. In addition, in this embodiment, the guide plate 17 provided at the end of the stirring rod 18 is tilted downward or tilted upward, which is the tilt of the guide plate 17 after rotating along the central axis of the stirring rod 18. In other embodiments, the guide plate 17 can also be rotated and tilted in a direction perpendicular to the central axis of the stirring rod 18, so that the material in the stirring reaction tank flows inward (i.e., toward the center of the stirring reaction tank) or outward (i.e., toward the tank body of the stirring reaction tank) to improve the uniform mixing of the material and liquid.

[0033] Furthermore, a motor 15 for driving the homogenizer 1 to rotate is provided on the upper portion of the stirred reaction tank, and an output end of the motor 15 is connected to a vertical rod 16 of the homogenizer 1 .

[0034] Furthermore, the hot water constant temperature system includes a heating rod 7, a hot water temperature probe 5 and a first PLC6, the heating rod 7 is arranged inside the hot water storage tank, and the hot water temperature probe 5 is arranged in the hot water storage tank outlet pipe 12, and is linked with the first PLC6 and the heating rod 7; during the circulation process, when the temperature in the hot water storage tank collected by the hot water temperature probe 5 at the hot water outlet drops to the lower limit of the set value, the hot water temperature probe 5 at the hot water outlet is linked with the heating rod 7 through the first PLC6 to heat the water in the hot water storage tank until the temperature in the hot water storage tank collected by the hot water temperature probe 5 at the hot water outlet rises to the upper limit of the set value, thereby ensuring that the temperature of the hot water flowing through the hot water inlet solenoid valve 4 is constant within the set range, preferably 84.5-85.5°C.

[0035] Furthermore, the temperature probe 2 in the tank is arranged at the center position in the stirred reaction tank, preferably at the center position of the liquid, that is, close to the vertical rod 16 of the fishbone multi-layer agitator, and the height setting in the stirred reaction tank does not affect the stirring of the stirring rod 18. The temperature probe 2 in the tank is away from the hot water jacket 9 and avoids the agitator, and can more accurately represent the temperature of the material in the stirred reaction tank.

[0036] Furthermore, the lower part of the hot water jacket 9 is provided with a jacket water inlet end 13, and the upper part is provided with a jacket water outlet end 14, the lower part of the hot water storage tank is provided with a tank water outlet end 11, and the upper part is provided with a tank water inlet end 10, the water outlet end of the hot water storage tank is connected to the water inlet end of the hot water jacket 9 through the temperature control system, and the jacket water outlet end 14 is connected to the tank water inlet end 10 through the water pipe 12, forming a water circulation, that is, forming a circulation of hot water storage tank-tank water outlet end 11-temperature control system-jacket water inlet end 13-hot water jacket 9-jacket water outlet end 14-water pipe 12-tank water inlet end 10-hot water storage tank.

[0037] The temperature control system consists of a hot water inlet solenoid valve 4, a hot water pump 3, a tank temperature probe 2 and a second PLC 8. It can control the opening ratio of the hot water inlet solenoid valve 44 according to the set temperature value of the material and the temperature difference of the tank temperature probe 2.

[0038] The preferred control principle of the present application is: when the rice starch in the stirred reactor is gelatinized and heated, the gelatinization temperature is set to T1, the temperature probe 2 in the tank displays the measured temperature as T, and the jacket temperature probe 19 displays the measured temperature as T2; when T1>T, the first PLC6 will control the hot water inlet solenoid valve 4 to be fully opened to quickly heat the jacket water; until T+5=T1, the first PLC6 will control the opening ratio of the hot water inlet solenoid valve 4 to make the measured temperature T2=T1 of the jacket temperature probe 19, thereby ensuring that the jacket water temperature is consistent with the gelatinization temperature, avoiding a large temperature difference that affects the efficiency and gelatinization quality of the subsequent gelatinization reaction.

[0039] It should be noted that the above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent transformations made by any technician in this field within the technical scope disclosed in the present invention shall fall within the protection scope of the present invention.

Claims

1. A rice starch gelatinization reaction system, characterized in that: Including stirred reactor, hot water system and temperature control system; The stirred reaction tank is provided with a hot water jacket on the outside and a homogenizing stirrer on the inside; The hot water system includes a hot water storage tank and a hot water constant temperature system connected to the hot water storage tank; The temperature control system is arranged between the stirred reactor and the hot water system, and is connected to the water outlet of the hot water storage tank and the water inlet of the hot water jacket via a water pipe, so as to introduce the hot water in the hot water storage tank into the hot water jacket outside the stirred reactor; the temperature control system includes a hot water inlet solenoid valve and a hot water pump arranged on the water pipe, and also includes a tank temperature probe arranged in the hot water storage tank, and the tank temperature probe is connected to the hot water inlet solenoid valve via a second PLC and controls the opening of the hot water inlet solenoid valve; The water outlet end of the hot water jacket is connected to the water inlet end of the hot water storage tank, so that water circulation is formed between the hot water storage tank and the hot water jacket.

2. The rice starch gelatinization reaction system according to claim 1, wherein: The hot water jacket is arranged around the outside of the stirring reaction tank, and the lower part of the hot water jacket is provided with a jacket water inlet end, and the upper part is provided with a jacket water outlet end.

3. The rice starch gelatinization reaction system according to claim 1, wherein: The homogenizing mixer is a fishbone-type multi-layer mixer, which consists of a vertical rod in the middle and multi-layer stirring rods symmetrically arranged on both sides of the vertical rod. The ends of the stirring rods are provided with guide plates.

4. The rice starch gelatinization reaction system according to claim 3, wherein: The guide plate provided at the end of the stirring rod at the upper part of the fishbone type multi-layer stirrer is tilted downward, and the guide plate provided at the end of the stirring rod at the lower part of the fishbone type multi-layer stirrer is tilted upward.

5. The rice starch gelatinization reaction system according to claim 4, wherein: The upper part of the stirring reaction tank is provided with a motor for driving the homogenizing stirrer to rotate.

6. The rice starch gelatinization reaction system according to claim 1, wherein: The hot water constant temperature system includes a heating rod, a hot water temperature probe and a first PLC. The heating rod is arranged inside the hot water storage tank. The hot water temperature probe is arranged in the water outlet pipe of the hot water storage tank and is linked with the first PLC and the heating rod.

7. The rice starch gelatinization reaction system according to claim 1, wherein: The temperature probe in the tank is arranged at the center position in the stirring reaction tank.

8. The rice starch gelatinization reaction system according to claim 1, wherein: The lower part of the hot water jacket is provided with a jacket water inlet end, and the upper part is provided with a jacket water outlet end. The lower part of the hot water storage tank is provided with a tank water outlet end, and the upper part is provided with a tank water inlet end. The water outlet end of the hot water storage tank is connected to the water inlet end of the hot water jacket through a temperature control system, and the jacket water outlet end is connected to the tank water inlet end through a water pipe to form a water circulation.

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