Intelligent enzymatic deacidification system for rice bran oil

Abstract

The invention discloses an intelligent rice bran oil enzymatic deacidification system which comprises a reaction bin, a circulating belt assembly is fixedly arranged in the reaction bin, a plurality of dense screen frames used for containing catalytic enzymes are fixedly arranged on the circulating belt assembly, and at least two dense screen frames are immersed in rice bran oil in the reaction bin; the device further comprises a concentration monitoring device, a temperature monitoring device and a controller, the concentration monitoring device and the temperature monitoring device are both electrically connected with the controller, and the controller controls movement of the circulating belt assembly based on the content of fatty acid monitored by the concentration monitoring device so as to control movement of the dense screen frame. The circulating belt assembly is arranged to drive the dense screen frames filled with the catalytic enzyme particles to be sequentially immersed into the rice bran oil, so that the average activity of all the catalytic enzyme particles immersed into the rice bran oil is always kept within a certain range.

Description

Technical Field

[0001] The present application relates to the technical field of rice bran oil processing, and in particular to an intelligent rice bran oil enzymatic deacidification system. Background Art

[0002] Deacidification of rice bran oil is a key step in the refining process, aiming to reduce the free fatty acid (FFA) content and improve the quality and stability of the oil.

[0003] In the prior art, conventional rice bran oil deacidification method has the chemical alkali refining method by neutralizing alkali lye and free fatty acids, and the physical refining method of removing FFA by steam distillation under high temperature and high vacuum condition, but chemical alkali refining method can produce a large amount of waste water, physical refining method can destroy nutrients such as oryzanol, therefore people have optimized biotechnology deacidification method (enzymatic deacidification), utilize lipase catalysis FFA and glycerine / monoglyceride reaction, generate glyceride, and then reduce free fatty acid content, the additional product of this method is few, and extremely low to the degree of destruction of nutrients, is therefore applicable to the production and processing of high-quality rice bran oil.But when adopting enzymatic deacidification, catalyzed enzyme can reduce activity along with the increase of service time, and in order to reduce production cost, catalyzed enzyme all can reuse usually, therefore the catalyzed enzyme of recycling can slow down the speed of catalyzed fatty acids along with the increase of service number, and then make the deacidification time of the rice bran oil of different batches different, be difficult to the rice bran oil deacidification process control of different batches within the same time range, management difficulty when this has increased rice bran oil deacidification.

[0004] Therefore, the inventor is necessary to design a new intelligent rice bran oil enzymatic deacidification system to overcome the above problems. Summary of the Invention

[0005] The main purpose of the present application is to provide an intelligent rice bran oil enzymatic deacidification system to solve the problem in the related art that it is difficult to control the deacidification processing time of different batches of rice bran oil.

[0006] In order to achieve the above objectives, the present application provides an intelligent rice bran oil enzymatic deacidification system, comprising: A reaction chamber, wherein a circulating belt assembly is fixedly provided in the reaction chamber, a plurality of dense mesh frames for placing catalytic enzymes are fixedly provided on the circulating belt assembly, and at least two of the dense mesh frames are immersed in the rice bran oil in the reaction chamber; A loading and unloading assembly, used for installing or removing the dense mesh frame onto the circulating belt assembly; A stirring component, used for stirring the rice bran oil in the reaction chamber; A heating component, used for heating the rice bran oil in the reaction chamber; The system further comprises a concentration monitoring device, a temperature monitoring device and a controller, wherein the concentration monitoring device and the temperature monitoring device are both immersed in the rice bran oil in the reaction chamber, and the concentration monitoring device and the temperature monitoring device are both electrically connected to the controller, and the controller controls the movement of the endless belt assembly based on the content of fatty acids monitored by the concentration monitoring device, thereby driving the dense mesh frame to be immersed in or exposed to the rice bran oil liquid surface; The controller also controls the power of the heating component based on the temperature of the rice bran oil measured by the temperature monitoring device.

[0007] Optionally, the circulating belt assembly includes a circulating belt body, a driving wheel, and a driven wheel. The driving wheel is fixedly connected to the rotating shaft of an external rotation output device, the driven wheel is rotatably connected to the inside of the reaction chamber, and the circulating belt body is transmission-connected between the driving wheel and the driven wheel.

[0008] Optionally, the loading and unloading assembly includes an external robotic arm, an operating window, and a magnetic assembly. The magnetic assembly is fixedly arranged between the circulating belt body and the dense mesh frame. The operating window is opened on the side wall of the reaction chamber. The external robotic arm installs and disassembles the dense mesh frame through the operating window.

[0009] Optionally, the controller controls the movement of the circulating belt assembly based on the fatty acid content monitored by the concentration monitoring device to drive the dense mesh frame to immerse in or expose the rice bran oil liquid surface, including: The controller stores a standard concentration curve of fatty acids in rice bran oil under the action of a normally active catalytic enzyme. The concentration monitoring device monitors the real-time concentration of fatty acids in a reaction chamber and transmits the data to the controller. The controller presets a maximum threshold concentration curve of fatty acids under the action of a low-activity catalytic enzyme. The controller is used to determine whether the real-time concentration curve obtained based on the real-time concentration of fatty acids in the reaction chamber is between the maximum threshold concentration curve and the standard concentration curve. If the curve deviates from the maximum threshold concentration curve, the circulating belt assembly is controlled to deliver the dense mesh frame containing the uncatalyzed catalytic enzyme into the rice bran oil and to deliver the dense mesh frame containing the catalytic enzyme with the longest catalysis time out of the rice bran oil.

[0010] Optionally, the controller further controls the power of the heating component based on the temperature of the rice bran oil measured by the temperature monitoring device, comprising: The controller stores a standard temperature range for the operation of the catalytic enzyme, and the temperature monitoring component monitors the real-time temperature of the rice bran oil in the reaction chamber and uploads the temperature to the controller. The controller determines the size relationship between the real-time temperature and the standard temperature range. If the real-time temperature is higher than the standard temperature range, the power of the heating component is controlled to be reduced. If the real-time temperature is within the standard temperature range, the power of the heating component is controlled to be increased.

[0011] Optionally, a plurality of magnetic points are fixedly provided on the circulating belt body, and a magnetic portion magnetically connected to the magnetic points is fixedly provided on the dense mesh frame.

[0012] Optionally, the stirring assembly includes a motor and a stirring shaft, the motor is fixedly arranged on the top of the reaction chamber, the stirring shaft is rotatably arranged in the reaction chamber, the stirring shaft is fixedly connected to the output end of the motor, and a plurality of blades are fixedly arranged on the stirring shaft.

[0013] Optionally, the heating component includes a heating plate, which is fixedly arranged on the outer wall of the reaction chamber, and the material of the reaction chamber is stainless steel.

[0014] Optionally, the concentration monitoring device includes a plurality of concentration probes, which are fixedly arranged at different depths in the reaction chamber.

[0015] Optionally, the temperature monitoring device includes a plurality of temperature probes, which are fixedly arranged at different depths in the reaction chamber.

[0016] The intelligent rice bran oil enzymatic deacidification system provided by the present invention has the following beneficial effects compared with the prior art: a circulating belt component is provided to drive a dense mesh frame loaded with catalytic enzyme particles to be immersed in rice bran oil in sequence, so that the average activity of all catalytic enzyme particles immersed in the rice bran oil is always maintained within a certain range, thereby ensuring that the processing time of each batch of rice bran oil in the deacidification process is relatively close; at the same time, intelligent control is performed through a controller, a temperature monitoring device, and a concentration monitoring device, thereby greatly improving the control accuracy, and being able to better control the deacidification processing time of the rice bran oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings that constitute part of this application are used to provide a further understanding of this application and make other features, objects and advantages of this application more apparent. The illustrative embodiment drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings: Figure 1 It is the overall structural diagram of the present invention; Figure 2 This is a diagram of the internal structure of the reaction chamber of the present invention; Figure 3 This is a structural diagram of the circulating belt assembly of the present invention; Figure 4 This is a structural diagram of the connection between the dense mesh frame and the circulating belt body of the present invention (a dense mesh frame is exploded and shown in the upper left part of the figure); Figure 5 Graph showing the fatty acid concentration of the present invention.

[0018] Among them: 1. Reaction chamber; 2. Circulating belt assembly; 201. Circulating belt body; 202. Driving wheel; 203. Driven wheel; 3. Dense mesh frame; 4. Rotating shaft; 5. Operation window; 6. Magnetic point; 7. Magnetic part; 8. Motor; 9. Stirring shaft; 10. Paddle; 11. Heating plate; 12. Concentration probe; 13. Temperature probe. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0020] It should be noted that the terms "first", "second", etc. in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0022] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0023] Additionally, the term "plurality" shall mean two or more.

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] like Figures 1 to 5 As shown, an intelligent rice bran oil enzymatic deacidification system includes: a reaction chamber 1, wherein a circulating belt assembly 2 is fixedly provided in the reaction chamber 1, and a plurality of dense mesh frames 3 for placing catalytic enzymes are fixedly provided on the circulating belt assembly 2, and at least two of the dense mesh frames 3 are immersed in the rice bran oil in the reaction chamber 1; a loading and unloading assembly, used for installing or removing the dense mesh frames 3 on the circulating belt assembly 2; a stirring assembly, used for stirring the rice bran oil in the reaction chamber 1; a heating assembly, used for heating the rice bran oil in the reaction chamber 1; and further comprising a concentration monitoring device, a temperature monitoring device and a controller, wherein the concentration monitoring device and the temperature monitoring device are both immersed in the rice bran oil in the reaction chamber 1, and the concentration monitoring device and the temperature monitoring device are both electrically connected to the controller, and the controller controls the movement of the circulating belt assembly 2 based on the content of fatty acids monitored by the concentration monitoring device, thereby driving the dense mesh frames 3 to be immersed in or exposed from the rice bran oil liquid surface; and the controller further controls the power of the heating assembly based on the temperature of the rice bran oil measured by the temperature monitoring device.

[0026] Concrete, by being set a plurality of dense mesh frames 3 on endless belt assembly 2, all place the catalytic enzyme particle of decomposing fatty acid in each dense mesh frame 3, endless belt assembly 2 is when running, immerse in the rice bran oil successively with these dense mesh frames 3, then immerse dense mesh frame 3 in the rice bran oil and carry out activity decline after long catalysis, after along with the operation of endless belt assembly 2, expose the liquid level of rice bran oil, then by loading and unloading assembly, these catalytic enzymes of activity decline are taken off from endless belt assembly 2, then install new unused catalytic enzyme, wait for endless belt assembly 2 to immerse in the rice bran oil when reoperating, immerse in the rice bran oil when a new dense mesh frame 3 that immerses catalytic enzyme is housed all has a dense mesh frame 3 that the catalytic enzyme of activity decline is housed and exposes from rice bran oil at every turn, such rotation mode has improved the mean value of the catalytic enzyme activity that is housed in all dense mesh frames 3, and then can accelerate the deacidification speed of this batch of rice bran oil to a certain extent, reduce the deacidification time.Stirring assembly is used to stir rice bran oil and makes rice bran oil can evenly pass dense mesh frame 3 and contact with the catalytic enzyme particle in dense mesh frame 3. The heating component is used to maintain the temperature of the rice bran oil in the high activity temperature range of the catalytic enzyme, thereby improving the catalytic efficiency.

[0027] The endless belt assembly 2 includes an endless belt body 201, a driving pulley 202, and a driven pulley 203. The driving pulley 202 is fixedly connected to the rotating shaft 4 of the external rotation output device. The driven pulley 203 is rotatably connected to the interior of the reaction chamber 1. The endless belt body 201 is in transmission connection between the driving pulley 202 and the driven pulley 203. Specifically, the external motor 8 drives the driving pulley 202 to rotate, which in turn drives the endless belt body 201 to rotate, and the driven pulley 203 follows. Here, the driven pulley 203 and the endless belt body 201 can be made of corrosion-resistant materials such as stainless steel and replaced regularly to reduce the contamination of rice bran oil caused by corrosion of the endless belt body 201 and the driven pulley 203. It should be noted that the endless belt assembly 2 in the figure is for illustration only. The actual shape and size of the specific endless belt body 201, driving pulley 202, and driven pulley 203 can be selected according to actual conditions, as long as the rotation of the driving pulley 202 can drive the endless belt body 201 to perform transmission operation.

[0028] The loading and unloading assembly includes an external robotic arm, an operating window 5, and a magnetic attraction assembly. The magnetic attraction assembly is fixedly arranged between the circulating belt body 201 and the dense mesh frame 3. The operating window 5 is opened on the side wall of the reaction chamber 1. The external robotic arm installs and removes the dense mesh frame 3 through the operating window 5. Specifically, when the dense mesh frame 3 containing the catalytic enzyme particles with reduced activity is exposed to the rice bran oil liquid level, the dense mesh frame 3 is grabbed by the external robotic arm and pulled out with force to disconnect the magnetic attraction assembly. At this time, the dense mesh frame 3 can be removed, and then the robotic arm grabs the dense mesh frame 3 containing new and unused catalytic enzyme particles and re-docking it with the circulating belt body 201, so that the magnetic attraction assembly between the two is reconnected, thereby realizing the replacement of the dense mesh frame 3.

[0029] The controller controls the movement of the circulating belt assembly 2 based on the content of fatty acids monitored by the concentration monitoring device, thereby driving the dense mesh frame 3 to be immersed in or exposed from the rice bran oil liquid surface: the standard concentration curve of fatty acids in rice bran oil under the action of normally active catalytic enzyme is stored in the controller, the concentration monitoring device monitors the real-time concentration of fatty acids in the reaction chamber 1 and transmits the data to the controller, and the maximum threshold concentration curve of fatty acids under the action of low-activity catalytic enzyme is preset in the controller. The controller is used to determine whether the real-time concentration curve obtained according to the real-time concentration of fatty acids in the reaction chamber 1 is between the maximum threshold concentration curve and the standard concentration curve. If deviated, the circulating belt assembly 2 is controlled to send the dense mesh frame 3 equipped with uncatalyzed catalytic enzyme into the rice bran oil, and to transport the dense mesh frame 3 equipped with the catalytic enzyme with the longest catalysis time out of the rice bran oil.

[0030] Specifically, the average value of the activities of all catalyzed enzymes at 70% of the maximum activity value can be used as a basis for plotting a standard concentration curve. That is, under this average activity value, the relationship between the concentration and time during the period when the fatty acids in the rice bran oil drop to a concentration that meets the output standard can be plotted as a standard concentration curve. Subsequently, the average value of the activities of all catalyzed enzymes at 60% of the maximum activity value can be used as a basis for plotting a maximum threshold concentration curve. That is, under this average activity value, the relationship between the concentration of the fatty acids in the rice bran oil and time can be plotted as a maximum threshold concentration curve. The activities of the catalytic enzyme particles contained in all the different dense mesh frames 3 immersed in the rice bran oil are all different. The activity value of the catalytic enzyme particles that enter the rice bran oil the latest is 100% of the maximum value, while the activity value of the catalytic enzyme particles that enter the rice bran oil the earliest is the lowest, which may be 30% of the activity value maximum. At this moment, the average activity of all catalytic enzymes may be 65% of the maximum value, between 60% and 70%, and catalytic reaction can be normally carried out. The real-time concentration curve is located between the maximum threshold concentration curve and the described standard concentration curve. There is no need to introduce new catalytic enzymes. As time goes by, the activity average value of this batch of catalytic enzymes may drop to 55%. At this moment, catalytic speed obviously slows down. Under the same reaction time, its fatty acid concentration is obviously higher than the concentration of fatty acids in the rice bran oil catalyzed by the 60% activity value. At this moment, the reaction on the concentration curve is that the real-time concentration curve deviates from the maximum threshold concentration curve. At this moment, it is necessary to introduce new catalytic enzymes and remove the catalytic enzyme with the lowest activity to improve the mean value of all catalytic enzyme activity values, so that the mean value re-enters between 60% and 70% of the maximum value. At this moment, the real-time concentration curve is again moved between the maximum threshold concentration curve and the described standard concentration curve. During this process, each batch of rice bran oil is catalyzed by a catalytic enzyme with an average activity between 60% and 70%, which makes the reaction time of each batch relatively close. If the most conservative longest reaction time is used as the time standard for switching rice bran oil batches, the effect of timed switching of rice bran oil batches can be achieved, and the fatty acid concentration of each batch of rice bran oil can be guaranteed to be reduced to within the target range.

[0031] The controller also controls the power of the heating component based on the temperature of the rice bran oil measured by the temperature monitoring device. This includes storing a standard operating temperature range for the catalytic enzyme in the controller, monitoring the real-time temperature of the rice bran oil in the reaction chamber 1 and uploading it to the controller, and determining the relative magnitude of the real-time temperature to the standard temperature range. If the real-time temperature exceeds the standard temperature range, the power of the heating component is reduced; if the real-time temperature falls within the standard temperature range, the power of the heating component is increased. Specifically, numerous studies have shown that immobilized lipase improves its thermal stability, raising its optimal temperature to 50–60°C. To protect the oryzanol in rice bran oil, a mild temperature range of 50–55°C is recommended to avoid damaging the nutrient. Therefore, a standard temperature range of 50–55°C can be preset. When the temperature monitoring device detects that the real-time temperature of the rice bran oil is below 50°C, the heating component is controlled to increase heating power to bring the temperature within this range. Conversely, if the real-time temperature exceeds 55°C, the heating power is reduced to return the temperature to the standard temperature range.

[0032] A plurality of magnetic points 6 are fixedly provided on the endless belt body 201, and a magnetic portion 7 magnetically connected to the magnetic points 6 is fixedly provided on the dense mesh frame 3. Specifically, in this embodiment, the dense mesh frame 3 is fixedly installed by magnetic attraction. In addition, the dense mesh frame 3 can also be installed by snap connection, bolt connection, etc. However, the magnetic connection method is simple to install, convenient for the operation of the external robot arm, and has a simple connection structure. If a complex structure is used for connection, rust and metal ions may be precipitated at the connection part, thereby contaminating the rice bran oil. The simple and stable magnetic connection can reduce such pollution.

[0033] The stirring assembly includes a motor 8 and a stirring shaft 9. The motor 8 is fixedly mounted on the top of the reaction chamber 1. The stirring shaft 9 is rotatably mounted in the reaction chamber 1. The stirring shaft 9 is fixedly connected to the output end of the motor 8. A plurality of paddles 10 are fixedly mounted on the stirring shaft 9. Specifically, in order to ensure that the rice bran oil in the reaction chamber 1 can react uniformly with the catalytic enzyme particles in the dense mesh frame 3, the rice bran oil needs to be stirred. During operation, the motor 8 is mounted on an external bracket. The output shaft of the motor 8 drives the stirring shaft 9 to rotate, which in turn drives the paddles 10 to rotate, thereby stirring the rice bran oil in the reaction chamber 1 so that it can react uniformly with the catalytic enzyme particles in the dense mesh frame 3.

[0034] The heating assembly includes a heating plate 11, which is fixedly mounted on the outer wall of the reaction chamber 1. The reaction chamber 1 is made of stainless steel. Specifically, the outer wall of the reaction chamber 1 is heated by the heating plate 11, and the heat is then transferred to the rice bran oil in the reaction chamber 1. The reaction chamber 1 is made of stainless steel because of its good thermal conductivity and corrosion resistance. To prevent metal ion precipitation and contamination of the rice bran oil, the surface of the stainless steel reaction chamber 1 can be surface treated, as can the surfaces of the stainless steel circulating belt body 201, the driven pulley 203, and other structures. A food-grade PTFE (polytetrafluoroethylene) coating is provided on the surface to prevent the precipitation of spacers and reduce friction loss.

[0035] The concentration monitoring device includes a plurality of concentration probes 12, which are fixedly arranged at different depths in the reaction chamber 1. Specifically, the concentration probes 12 at different depths are used to detect the real-time concentration of fatty acids in rice bran oil at different locations, and the average value is taken as the standard value and output to the controller, which can reduce the concentration error.

[0036] The temperature monitoring device includes a plurality of temperature probes 13, which are fixedly arranged at different depths in the reaction chamber 1. Specifically, the temperature probes 13 at different depths are used to detect the real-time temperature of the fatty acids in the rice bran oil at different locations, and the average value is taken as the standard value and output to the controller, which can reduce the temperature error.

[0037] In this embodiment, a circulating belt assembly 2 is provided to drive a dense mesh frame 3 containing catalytic enzyme particles to be immersed in rice bran oil in sequence, so that the average activity of all catalytic enzyme particles immersed in the rice bran oil is always maintained within a certain range, thereby making the processing time of each batch of rice bran oil in the deacidification process relatively close. At the same time, intelligent control is performed by a controller, a temperature monitoring device, and a concentration monitoring device, thereby greatly improving the control accuracy, and can better control the time of the rice bran oil deacidification process.

[0038] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An intelligent rice bran oil enzymatic deacidification system, characterized in that: include: A reaction chamber (1), wherein a circulating belt assembly (2) is fixedly arranged in the reaction chamber (1), a plurality of dense mesh frames (3) for placing catalytic enzymes are fixedly arranged on the circulating belt assembly (2), and at least two of the dense mesh frames (3) are immersed in rice bran oil in the reaction chamber (1); A loading and unloading assembly, used for installing or removing the dense mesh frame (3) onto the circulating belt assembly (2); A stirring component, used for stirring the rice bran oil in the reaction chamber (1); A heating component, used for heating the rice bran oil in the reaction chamber (1); The apparatus further comprises a concentration monitoring device, a temperature monitoring device and a controller, wherein the concentration monitoring device and the temperature monitoring device are both immersed in the rice bran oil in the reaction chamber (1), and the concentration monitoring device and the temperature monitoring device are both electrically connected to the controller, and the controller controls the movement of the circulating belt assembly (2) based on the content of fatty acids monitored by the concentration monitoring device, thereby driving the dense mesh frame (3) to be immersed in or exposed to the rice bran oil liquid surface; The controller also controls the power of the heating component based on the temperature of the rice bran oil measured by the temperature monitoring device.

2. A kind of intelligent rice bran oil enzymatic deacidification system as claimed in claim 1, it is characterized in that: The circulating belt assembly (2) comprises a circulating belt body (201), a driving wheel (202), and a driven wheel (203); the driving wheel (202) is fixedly connected to a rotating shaft (4) of an external rotation output device; the driven wheel (203) is rotationally connected to the interior of the reaction chamber (1); and the circulating belt body (201) is transmission-connected between the driving wheel (202) and the driven wheel (203).

3. A kind of intelligent rice bran oil enzymatic deacidification system as claimed in claim 2, it is characterized in that: The loading and unloading assembly comprises an external robotic arm, an operating window (5) and a magnetic attraction assembly, wherein the magnetic attraction assembly is fixedly arranged between the circulating belt body (201) and the dense mesh frame (3), and the operating window (5) is opened on the side wall of the reaction chamber (1). The external robotic arm installs and removes the dense mesh frame (3) through the operating window (5).

4. A kind of intelligent rice bran oil enzymatic deacidification system as claimed in claim 1, it is characterized in that: The controller controls the movement of the circulating belt assembly (2) based on the content of fatty acids monitored by the concentration monitoring device, thereby driving the dense mesh frame (3) to be immersed in or exposed to the rice bran oil liquid surface, including: The controller stores a standard concentration curve of fatty acids in rice bran oil under the action of a normally active catalytic enzyme. The concentration monitoring device monitors the real-time concentration of fatty acids in the reaction chamber (1) and transmits the data to the controller. The controller presets a maximum threshold concentration curve of fatty acids under the action of a low-activity catalytic enzyme. The controller is used to determine whether the real-time concentration curve obtained based on the real-time concentration of fatty acids in the reaction chamber (1) is between the maximum threshold concentration curve and the standard concentration curve. If the curve deviates, the circulating belt component (2) is controlled to send the dense mesh frame (3) containing the uncatalyzed catalytic enzyme into the rice bran oil, and to send the dense mesh frame (3) containing the catalytic enzyme with the longest catalytic time out of the rice bran oil.

5. An intelligent rice bran oil enzymatic deacidification system as claimed in claim 1, characterized in that: The controller further controls the power of the heating component based on the temperature of the rice bran oil measured by the temperature monitoring device, including: The controller stores a standard temperature range for the catalytic enzyme to work, the temperature monitoring component monitors the real-time temperature of the rice bran oil in the reaction chamber (1) and uploads the temperature to the controller, the controller determines the size relationship between the real-time temperature and the standard temperature range, and if the real-time temperature is higher than the standard temperature range, controls the power of the heating component to decrease; if the real-time temperature is within the standard temperature range, controls the power of the heating component to increase.

6. An intelligent rice bran oil enzymatic deacidification system as claimed in claim 3, characterized in that: A plurality of magnetic attraction points (6) are fixedly provided on the circulating belt body (201), and a magnetic attraction portion (7) magnetically connected to the magnetic attraction points (6) is fixedly provided on the dense mesh frame (3).

7. An intelligent rice bran oil enzymatic deacidification system as claimed in claim 1, characterized in that: The stirring assembly comprises a motor (8) and a stirring shaft (9); the motor (8) is fixedly arranged on the top of the reaction chamber (1); the stirring shaft (9) is rotatably arranged in the reaction chamber (1); the stirring shaft (9) is fixedly connected to the output end of the motor (8); and a plurality of paddles (10) are fixedly arranged on the stirring shaft (9).

8. An intelligent rice bran oil enzymatic deacidification system as claimed in claim 1, characterized in that: The heating component comprises a heating plate (11), the heating plate (11) is fixedly arranged on the outer wall of the reaction chamber (1), and the material of the reaction chamber (1) is stainless steel.

9. An intelligent rice bran oil enzymatic deacidification system as claimed in claim 1, characterized in that: The concentration monitoring device comprises a plurality of concentration probes (12), and the concentration probes (12) are fixedly arranged at different depths in the reaction chamber (1).

10. The intelligent rice bran oil enzymatic deacidification system according to claim 1, wherein: The temperature monitoring device comprises a plurality of temperature probes (13), and the temperature probes (13) are fixedly arranged at different depths in the reaction chamber (1).

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