Reconstituted tobacco leaf device and control system for improving low-concentration refining flow stability

Abstract

The present invention discloses a reconstituted tobacco leaf device and a control system for improving the stability of low-concentration refining flow rate. A flow detector is used to detect the flow rate of low-concentration refining outputted through an outlet valve, and the result is outputted as low-concentration refining flow rate data. A data acquisition module is used to collect the low-concentration refining flow rate data, the valve opening of the outlet valve, and the motor operating frequency of the inlet motor as feedback information. A controller establishes a stable loop control model by utilizing the relationship between the valve opening and the motor operating frequency, obtains feedback information, inputs real-time low-concentration refining flow rate data and a low-concentration refining flow rate set value into the loop control model, obtains a control value scheme, controls the valve opening of the outlet valve and the motor operating frequency of the inlet motor through the control scheme, forms an inner loop control by establishing a stable loop control model, and can stably control various parameters of the inner loop. Through outer loop control combined with inner loop control, a double closed-loop control of the slurry flow rate is formed, thereby achieving stable operation of the low-concentration refining.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco manufacturing, and in particular to a reconstituted tobacco leaf device and a control system for improving the flow stability of low-concentration refining. Background Art

[0002] Reconstituted tobacco is a method of tobacco production. Reconstituted tobacco, also known as tobacco reconstituted tobacco flakes, is made by processing discarded tobacco stems, tobacco dust, and low-quality tobacco leaves generated during cigarette production. The result is reconstituted tobacco with a quality close to or even better than natural tobacco. Reconstituted tobacco has the characteristics of good combustion performance, high filling density, and low tar content. It also improves the overall utilization efficiency of tobacco leaves and reduces production costs.

[0003] Reconstituted tobacco is the primary tobacco material used in heat-not-burn (HNB) cigarettes and is also the core raw material for these products. The main production processes for reconstituted tobacco include roller pressing, thick pulping, papermaking, and dry processing.

[0004] Papermaking-based reconstituted tobacco is a highly efficient method for producing reconstituted tobacco. Tobacco raw materials are extracted with water and then subjected to solid-liquid separation, separating the water-soluble and insoluble materials in the tobacco. The insoluble materials are pulped and then processed into a fiber sheet on a paper machine. The water-soluble materials are concentrated and then converted into a coating liquid, which is then applied to the sheet after soaking. Finally, after drying, the papermaking-based reconstituted tobacco leaves are produced. Pulping, a key step in the production of papermaking-based reconstituted tobacco leaves, utilizes the friction and kneading action of the grinding discs to treat the extracted and squeezed solid material, creating a filamentous, finely fiberized pulp that meets the quality requirements of papermaking and product quality. The design of process parameters during the beating process has a significant impact on the physical properties of the papermaking-based reconstituted tobacco leaves, including tensile strength, bulk, absorbency, and coating rate. The quality of low-consistency beating also directly affects subsequent production processes, including machine speed, wet-end dewatering performance, and yield.

[0005] The stability of pulp flow during the beating process is one of the factors affecting the pulp quality. Unstable pulp flow will lead to fluctuations in the low-concentration grinding power, seriously affecting the effect and quality of the pulping.

[0006] Among them, there are many factors that affect the slurry flow rate during the operation of the low-concentration mill, such as the valve opening of the feed and discharge ports, the operating frequency of the feed pump, the low-concentration mill inlet pressure, the slurry concentration, etc. The fluctuations and changes of these factors will cause a series of changes, causing the slurry flow rate of the low-concentration mill to fluctuate, and thus affect the refining quality of the low-concentration mill.

[0007] Therefore, how to control the slurry flow fluctuation of low-concentration grinding is one of the focuses of work for those skilled in the art. Summary of the Invention

[0008] The purpose of the present invention is to provide a reconstituted tobacco device and a control system for improving the stability of low-concentration grinding flow, forming a double closed-loop control of the slurry flow, achieving stable operation of low-concentration grinding, and improving the manufacturing efficiency of reconstituted tobacco.

[0009] To solve the above technical problems, an embodiment of the present invention provides a control system for improving the stability of low-consistency refining flow, comprising:

[0010] A first slurry tank, used for storing and outputting slurry to be processed;

[0011] An imported motor is used to output the slurry to be processed to the low-concentration mill by controlling the operating state of the feed pump after receiving a control instruction;

[0012] A low-concentration grinding mill is used to receive the pulp to be processed outputted by the feed pump, perform beating treatment on the pulp, and output low-concentration refined pulp;

[0013] an outlet valve connected to the output end of the low-concentration mill and used for outputting the low-concentration refined pulp to a second pulp tank for storage;

[0014] a flow detector for detecting the flow of the low-consistency refined pulp output through the outlet valve and outputting the flow as low-consistency refined pulp flow data;

[0015] A data acquisition module, configured to acquire the low-consistency refining flow rate data, the valve opening of the outlet valve, and the motor operating frequency of the inlet motor as feedback information;

[0016] The controller is used to establish a stable loop control model by utilizing the relationship between the valve opening and the motor operating frequency, obtain the feedback information, input the real-time low-concentration refining flow data and the low-concentration refining flow set value into the loop control model, obtain a control value scheme, and control the valve opening of the outlet valve and the motor operating frequency of the inlet motor through the control scheme.

[0017] Among them, it also includes a transfer function establishment module connected to the controller, which is used to establish the outlet valve opening transfer function, the feed pump transfer function, the low-concentration refining flow transfer function, the motor frequency feedback transfer function, and the pulp flow feedback transfer function based on historical data, and then establish the loop control model based on the outlet valve opening transfer function, the feed pump transfer function, the low-concentration refining flow transfer function, the motor frequency feedback transfer function, and the pulp flow feedback transfer function.

[0018] Among them, it also includes a parameter display module connected to the controller, which is used to display the low-concentration refining flow data, the valve opening, the motor operating frequency, the low-concentration refining flow set value, and the frequency change rate of the feed pump, the motor operating frequency change rate, the outlet valve opening change rate, and the low-concentration refining inlet pressure.

[0019] Among them, it also includes a first control module set in the ring control model and a second control module set in the inlet motor and the controller. The first control module is used to output a first control instruction after obtaining the valve opening and the motor operating frequency. The second control module is used to control the operating state of the inlet motor according to the real-time low-concentration refining flow data and the low-concentration refining flow set value.

[0020] The first control module and the second control module are PID data processors, fuzzy data processors or adaptive data processors.

[0021] Among them, it also includes a parameter input module connected to the controller, which is used to input the processor type selected by the controller to establish the loop control model, the low-concentration refining flow set value, the normal operating range of the frequency of the inlet motor, and the normal operating range of the valve opening of the outlet valve.

[0022] Among them, it also includes an alarm module connected to the controller, which is used to issue an alarm message after detecting that the electrode frequency of the inlet motor exceeds the normal operating range of the frequency, the valve opening of the outlet valve exceeds the normal operating range of the valve opening, or the real-time low-concentration refining flow data after adjustment is outside the low-concentration refining flow data after the last adjustment and the low-concentration refining flow set value.

[0023] Among them, it also includes a communication module connected to the controller, which is used to adjust the valve opening of the outlet valve and the motor operating frequency of the inlet motor after obtaining external instructions, or output real-time low-concentration refining flow data and real-time operating data of the valve opening of the outlet valve and the motor operating frequency of the inlet motor.

[0024] The communication module includes a wired communication unit and a wireless communication unit, and the wireless communication unit includes at least one of a 4G communication subunit, a 5G communication subunit or a wifi communication subunit.

[0025] In addition, an embodiment of the present application further provides a reconstituted tobacco leaf device, including a control system for improving the stability of low-concentration refining flow as described above.

[0026] The reconstituted tobacco leaf device and the control system for improving the low-concentration refining flow stability provided by the embodiments of the present invention have the following advantages over the prior art:

[0027] The embodiments of the present invention provide a reconstituted tobacco leaf device and a control system for improving the stability of low-concentration refining flow. A flow detector is used to detect the flow of low-concentration refining output through an outlet valve, and output the flow as low-concentration refining flow data. The data acquisition module collects low-concentration refining flow data and the valve opening of the outlet valve and the motor operating frequency of the inlet motor as feedback information. The controller establishes a stable loop control model by utilizing the relationship between the valve opening and the motor operating frequency, obtains feedback information, inputs real-time low-concentration refining flow data and the low-concentration refining flow set value into the loop control model, and obtains a control value scheme. The valve opening of the outlet valve and the motor operating frequency of the inlet motor are controlled by the control scheme. By establishing a stable loop control model, an inner loop control is formed, and various parameters of the inner loop can be stably controlled. Through outer loop control and combined with inner loop control, a double closed-loop control of the slurry flow is formed to achieve stable operation of the low-concentration refining. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 A schematic structural diagram of an embodiment of a control system for improving low-consistency refining flow stability provided by the present invention;

[0030] Among them, 10 is the first slurry tank, 20 is the inlet motor, 30 is the low-concentration mill, 40 is the outlet valve, 50 is the flow detector, 60 is the data acquisition module, and 70 is the controller. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Please refer to Figure 1 , Figure 1 This is a schematic structural diagram of an embodiment of a control system for improving the stability of low-consistency refining flow provided by the present invention.

[0033] In a specific embodiment, the control system for improving the low-consistency refining flow stability includes:

[0034] The first slurry tank 10 is used to store and output the slurry to be processed;

[0035] The inlet motor 20 is used to output the slurry to be processed to the low-concentration mill by controlling the operating state of the feed pump after receiving the control instruction;

[0036] The low-concentration mill 30 is used to receive the pulp to be processed outputted by the feed pump, perform beating treatment on the pulp, and output low-concentration refined pulp;

[0037] An outlet valve 40 is connected to the output end of the low-concentration mill and is used to output the low-concentration refined pulp to a second pulp tank for storage;

[0038] a flow detector 50 for detecting the flow of the low-consistency refined pulp output through the outlet valve and outputting the flow data as low-consistency refined pulp flow data;

[0039] A data acquisition module 60 is used to collect the low-consistency refining flow data, the valve opening of the outlet valve, and the motor operating frequency of the inlet motor as feedback information;

[0040] The controller 70 is used to establish a stable loop control model by utilizing the relationship between the valve opening and the motor operating frequency, obtain the feedback information, input the real-time low-concentration refining flow data and the low-concentration refining flow set value into the loop control model, obtain a control value scheme, and control the valve opening of the outlet valve and the motor operating frequency of the inlet motor through the control scheme.

[0041] A flow detector 50 is used to detect the flow of low-concentration refining output through the outlet valve 40, and output it as low-concentration refining flow data; the low-concentration refining flow data and the valve opening of the outlet valve 40 and the motor operating frequency of the inlet motor 20 are collected through the data acquisition module 60 as feedback information; the controller establishes a stable loop control model by utilizing the relationship between the valve opening and the motor operating frequency, obtains feedback information, inputs the real-time low-concentration refining flow data and the low-concentration refining flow set value into the loop control model, and obtains a control value scheme, controls the valve opening of the outlet valve and the motor operating frequency of the inlet motor through the control scheme, and forms an inner loop control by establishing a stable loop control model, which can stably control various parameters of the inner loop. Through outer loop control combined with inner loop control, a double closed-loop control of the slurry flow is formed to achieve stable operation of the low-concentration refining.

[0042] In this application, when establishing the ring control model and the subsequent flow correction process, it is necessary to utilize the functional relationship of each different component. There is no limitation on the specific functional relationship. It can be set by yourself, or obtained by the system through fitting historical data, or selected according to pre-stored functions, etc.

[0043] In order to improve the flexibility of the system, in one embodiment, the control system for improving the stability of low-concentration refining flow also includes a transfer function establishment module connected to the controller 70, which is used to establish the outlet valve opening transfer function, the feed pump transfer function, the low-concentration refining flow transfer function, the motor frequency feedback transfer function, and the pulp flow feedback transfer function based on historical data, and then establish the loop control model based on the outlet valve opening transfer function, the feed pump transfer function, the low-concentration refining flow transfer function, the motor frequency feedback transfer function, and the pulp flow feedback transfer function.

[0044] By establishing different transfer functions through historical data, subsequent rapid use is achieved, making the established model very accurate. It should be pointed out that the subsequent loop control model can continue to use new data to iterate and deduce using neural network algorithms, so as to obtain a more accurate model and improve control efficiency. This application does not limit the update of the control model.

[0045] In order to further improve management efficiency, in one embodiment, the control system for improving the stability of low-concentration refining flow also includes a parameter display module connected to the controller, which is used to display the low-concentration refining flow data, the valve opening, the motor operating frequency, the low-concentration refining flow set value, and the frequency change rate of the feed pump, the motor operating frequency change rate, the outlet valve opening change rate, and the low-concentration refining inlet pressure.

[0046] The display module is used to display various operating parameters and control parameters, thereby improving display efficiency. This application does not limit the type and setting location of the display module. It can also be displayed centrally, or individually on each operating component, or other display methods can be used.

[0047] In order to improve the control accuracy in the present application, in one embodiment, the control system for improving the stability of low-concentration refining flow also includes a first control module arranged in the ring control model and a second control module arranged in the inlet motor 20 and the controller 70. The first control module is used to output a first control instruction after obtaining the valve opening and the motor operating frequency, and the second control module is used to control the operating state of the inlet motor 20 according to the real-time low-concentration refining flow data and the low-concentration refining flow set value.

[0048] The first control module is used to output a first control instruction after obtaining the valve opening and the motor operating frequency, and the second control module is used to control the operating state of the inlet motor 20 according to the real-time low-concentration refining flow data and the low-concentration refining flow set value, that is, the inner loop and the outer loop use different control modules, which improves the control efficiency.

[0049] The present application does not limit the types of the first control module and the second control module.

[0050] The first control module and the second control module are PID data processors, fuzzy data processors or adaptive data processors, or other data processors, and the two can be the same or different.

[0051] In order to further improve the control accuracy, in one embodiment, the control system for improving the stability of low-concentration refining flow also includes a parameter input module connected to the controller, which is used to input the processor type selected in the loop control model established by the controller 70, the low-concentration refining flow set value, and the normal operating range of the frequency of the inlet motor 20 and the normal operating range of the valve opening of the outlet valve.

[0052] Through the parameter input module, the setting of the operating parameters of the entire equipment can be realized, which improves the flexibility of operation. This application does not limit the data input method of the parameter input module. It can be automatically input according to the properties of the component itself, such as the frequency of the imported motor 20, which may have a normal operating range itself. It can also be manual input of the operating parameters of other components, or it can be the selection of a data processor, etc., and the parameter setting can also be on-site setting, remote setting, or other settings.

[0053] In order to improve the operational reliability of the equipment, in one embodiment, the control system for improving the stability of the low-concentration refining flow rate also includes an alarm module connected to the controller 70, which is used to issue an alarm message after detecting that the electrode frequency of the inlet motor exceeds the normal operating range of the frequency, the valve opening of the outlet valve 40 exceeds the normal operating range of the valve opening, or the real-time low-concentration refining flow rate data after adjustment is outside the low-concentration refining flow rate data after the last adjustment and the low-concentration refining flow rate set value.

[0054] Through the alarm module, when the equipment parameters are abnormal, an alarm will be directly issued, which improves the reliability of operation and avoids system crashes.

[0055] In order to further improve management efficiency, in one embodiment, the control system for improving the stability of low-concentration refining flow also includes a communication module connected to the controller 70, and the communication module is used to obtain external instructions to adjust the valve opening of the outlet valve and the motor operating frequency of the inlet motor, or output real-time low-concentration refining flow data and real-time operating data of the valve opening of the outlet valve and the motor operating frequency of the inlet motor.

[0056] Through the communication module, real-time remote acquisition of data or input of control instructions can be achieved, and automatic control and remote control can be switched as needed, thereby improving the accuracy of control.

[0057] This application does not limit the type of communication module. The communication module includes a wired communication unit and a wireless communication unit. The wireless communication unit includes at least one of a 4G communication subunit, a 5G communication subunit or a wifi communication subunit, or other communication units.

[0058] In one embodiment, the control system for improving the stability of low-concentration refining flow is constructed by mathematical modeling and designing PID inner and outer loop controllers to construct a low-concentration refining flow stability control system, with the slurry flow as the outer loop main control and the feed pump frequency and outlet valve opening as the inner loop auxiliary control. The slurry flow is adjusted by adjusting the feed pump frequency and the outlet valve opening to achieve stable closed-loop control of the low-concentration refining slurry flow.

[0059] Among them, the motor frequency feedback transfer function collects the signals of the motor's operating frequency and slurry flow and feeds them back to the inner loop controller to adjust the motor frequency to stabilize the flow of the inlet slurry.

[0060] The feedback signal is compared with the signal output by the outer loop and then calibrated by the PID controller to correct the motor frequency value of the inner loop.

[0061] By collecting the outlet valve opening signal, the slurry flow rate is adjusted while the feed pump frequency is stable.

[0062] By fine-tuning each other through the correlation of the transfer function relationship between the valve opening and the motor frequency, the numerical stability of the inner loop frequency and the valve opening is achieved.

[0063] The slurry flow feedback transfer function compares the actual slurry flow value collected with the set slurry flow value, and adjusts it through the outer loop PID controller, ultimately achieving slurry flow stability at the set value, ensuring the efficiency and quality of low-concentration grinding.

[0064] In one embodiment, the flow rate range is 30-50m 3 / min, outlet valve opening 20-100%, feed pump frequency 50-95%, low concentration mill inlet pressure 120-200Kpa,

[0065] Example 1: Set the flow rate to 40 m 3 / min, low-concentration mill inlet pressure 160 KPa, during the production process, the flow rate suddenly increased to 42 m due to slurry changes 3 / min, at this time, the outlet valve opening slowly decreases from 39% to 34%, the feed pump frequency slowly decreases from 70% to 66%, and the final recovery flow rate is 40 m 3 / min, low-concentration mill inlet pressure 160 Kpa.

[0066] Example 2: Set the flow rate to 35 m 3 / min, low-concentration mill inlet pressure 160 KPa, during the production process, due to the decrease in slurry concentration, the low-concentration mill inlet pressure becomes 180 KPa, at this time the feed pump frequency 65% ​​slowly decreases to 60%, the outlet valve opening slowly increases from 35% to 41%, and the final recovery flow rate is 35 m 3 / min, low-concentration mill inlet pressure 160 Kpa.

[0067] By using the PID controller, an inner loop control system of valve opening-motor operating frequency is designed. Firstly, the motor operation is maintained stable and the frequent fluctuation of valve opening is reduced. Secondly, the inner loop PID controller adjusts the stability of slurry flow by controlling the feed pump motor operating frequency and valve opening.

[0068] The slurry flow outer loop control system designed using the PID controller compares and corrects the actual slurry flow value with the set slurry flow value to adjust the slurry flow value.

[0069] The designed dual closed-loop controller with frequency and valve opening inner loop and slurry flow outer loop forms an effective dual closed-loop control to achieve stable operation of slurry flow.

[0070] In addition, an embodiment of the present application further provides a reconstituted tobacco leaf device, including a control system for improving the stability of low-concentration refining flow as described above.

[0071] Since the reconstituted tobacco leaf device includes the control system for improving the stability of the low-concentration refining flow as described above, it has the same beneficial effects and will not be described in detail in this application.

[0072] In summary, the reconstituted tobacco leaf device and the control system for improving the stability of low-concentration refining flow provided by the embodiments of the present invention use a flow detector to detect the flow of low-concentration refining output through the outlet valve, and output it as low-concentration refining flow data; the low-concentration refining flow data and the valve opening of the outlet valve and the motor operating frequency of the inlet motor are collected through the data acquisition module as feedback information; the controller establishes a stable loop control model by utilizing the relationship between the valve opening and the motor operating frequency, obtains feedback information, inputs the real-time low-concentration refining flow data and the low-concentration refining flow set value into the loop control model, obtains a control value scheme, controls the valve opening of the outlet valve and the motor operating frequency of the inlet motor through the control scheme, and forms an inner loop control by establishing a stable loop control model, which can stably control the various parameters of the inner loop. Through the outer loop control and the inner loop control, a double closed-loop control of the slurry flow is formed to achieve stable operation of the low-concentration refining.

[0073] The above is a detailed introduction to the reconstituted tobacco leaf device and the control system for improving the flow stability of low-concentration refining provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A control system for improving the stability of low-consistency refining flow, characterized in that: include: A first slurry tank, used for storing and outputting slurry to be processed; An imported motor is used to output the slurry to be processed to the low-concentration mill by controlling the operating state of the feed pump after receiving a control instruction; A low-concentration grinding mill is used to receive the pulp to be processed outputted by the feed pump, perform beating treatment on the pulp, and output low-concentration refined pulp; an outlet valve connected to the output end of the low-concentration mill and used for outputting the low-concentration refined pulp to a second pulp tank for storage; a flow detector for detecting the flow of the low-consistency refined pulp output through the outlet valve and outputting the flow as low-consistency refined pulp flow data; A data acquisition module, configured to acquire the low-consistency refining flow rate data, the valve opening of the outlet valve, and the motor operating frequency of the inlet motor as feedback information; The controller is used to establish a stable loop control model by utilizing the relationship between the valve opening and the motor operating frequency, obtain the feedback information, input the real-time low-concentration refining flow data and the low-concentration refining flow setting value into the loop control model, obtain a control scheme, and control the valve opening of the outlet valve and the motor operating frequency of the inlet motor through the control scheme. It also includes a first control module arranged in the loop control model and a second control module arranged in the inlet motor and the controller. The first control module is used to output a first control instruction after obtaining the valve opening and the motor operating frequency, and adjust the stability of the slurry flow through the first control instruction. The second control module is used to control the operating state of the inlet motor according to the real-time low-concentration refining flow data and the low-concentration refining flow setting value.

2. The control system for improving the stability of low-consistency refining flow rate according to claim 1, characterized in that: It also includes a transfer function establishment module connected to the controller, which is used to establish the outlet valve opening transfer function, the feed pump transfer function, the low-concentration refining flow transfer function, the motor frequency feedback transfer function, and the pulp flow feedback transfer function based on historical data, and then establish the loop control model based on the outlet valve opening transfer function, the feed pump transfer function, the low-concentration refining flow transfer function, the motor frequency feedback transfer function, and the pulp flow feedback transfer function.

3. The control system for improving the stability of low-consistency refining flow rate according to claim 2, characterized in that: It also includes a parameter display module connected to the controller, which is used to display the low-concentration refining flow data, the valve opening, the motor operating frequency, the low-concentration refining flow set value, and the frequency change rate of the feed pump, the motor operating frequency change rate, the outlet valve opening change rate, and the low-concentration refining inlet pressure.

4. The control system for improving the flow stability of low-consistency refining according to claim 1, characterized in that: The first control module and the second control module are PID data processors, fuzzy data processors or adaptive data processors.

5. The control system for improving the flow stability of low-consistency refining according to claim 4, characterized in that: It also includes a parameter input module connected to the controller, which is used to input the processor type selected by the controller to establish the loop control model, the low-concentration refining flow set value, the normal operating range of the frequency of the inlet motor, and the normal operating range of the valve opening of the outlet valve.

6. The control system for improving the stability of low-consistency refining flow rate according to claim 1, characterized in that: It also includes an alarm module connected to the controller, which is used to issue an alarm message after detecting that the electrode frequency of the inlet motor exceeds the normal operating range of the frequency, the valve opening of the outlet valve exceeds the normal operating range of the valve opening, or the real-time low-concentration refining flow data after adjustment is outside the low-concentration refining flow data after the last adjustment and the low-concentration refining flow set value.

7. The control system for improving the flow stability of low-consistency refining according to claim 1, characterized in that: It also includes a communication module connected to the controller, which is used to adjust the valve opening of the outlet valve and the motor operating frequency of the inlet motor after obtaining external instructions, or output real-time low-concentration refining flow data and real-time operating data of the valve opening of the outlet valve and the motor operating frequency of the inlet motor.

8. The control system for improving the flow stability of low-consistency refining according to claim 7, characterized in that: The communication module includes a wired communication unit and a wireless communication unit, and the wireless communication unit includes at least one of a 4G communication subunit, a 5G communication subunit or a wifi communication subunit.

9. A reconstituted tobacco device, characterized in that: A control system for improving the stability of low-concentration refining flow rate comprising the control system described in any one of claims 1-8.

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