Basalt fiber multi-bushing wire drawing control method, system, equipment and medium

Abstract

The invention discloses a basalt fiber multi-bushing wire drawing control method, system and equipment and a medium. The basalt fiber multi-bushing wire drawing control method comprises the following steps that the real-time temperature, the real-time viscosity and the melt flow of a target bushing and the target fiber diameter of the target bushing are obtained; inputting the real-time temperature, the real-time viscosity, the melt flow and the target fiber diameter into a preset dynamic equilibrium equation to obtain a dynamic equilibrium index; whether the dynamic balance index is larger than a preset index threshold value or not is judged, and if yes, the melt flow is input into a preset flow compensation equation to obtain a flow compensation value; after the wire drawing control process is guided to reach preset time based on the flow compensation value, whether the dynamic balance index is larger than a preset index threshold value or not is judged again; if yes, the real-time temperature is input into a preset temperature compensation equation to obtain a temperature compensation value, and the wire drawing control process is guided based on the temperature compensation value, and the wire drawing control method and device have the advantages that the priority sequence of regulation and control indexes can be reasonably planned, and the wire drawing regulation and control efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of basalt fiber preparation control, and in particular to a basalt fiber multi-leakage plate drawing control method, system, equipment and medium. Background Art

[0002] Continuous basalt fiber drawing involves drawing high-temperature basalt melt through a trough-shaped container, a bushing, and nozzles located at the bottom of the bushing, where it is then drawn into continuous fibers using a variable-frequency drawing machine. Currently, bushings used to produce continuous basalt fiber typically have 200, 400, or 800 holes. As the number of holes and the number of bushings increase, higher requirements are placed on the temperature distribution and structural dimensional stability of the basalt fiber drawing bushings at high temperatures.

[0003] At present, for basalt fiber drawing and forming furnaces with multiple leaky plates, it is necessary to control the consistency and stability of the fiber drawing diameter at each leaky plate during the drawing and forming process to improve product production capacity and yield. However, the existing basalt fiber drawing control method has a single monitoring indicator, low monitoring accuracy, and a single adjustment method, making it difficult to quickly control the fiber drawing to the ideal state, and the control efficiency is low. Summary of the Invention

[0004] The main purpose of this application is to provide a basalt fiber multi-leakage plate drawing control method, system, equipment and medium, aiming to solve the technical problem of low control efficiency of existing basalt fiber drawing control methods.

[0005] To achieve the above objectives, the present application provides a basalt fiber multi-leakage plate drawing control method, comprising the following steps: Obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; Inputting real-time temperature, real-time viscosity, melt flow rate, and target fiber diameter into a preset dynamic balance equation to obtain a dynamic balance index; Determine whether the dynamic balance index is greater than a preset index threshold. If not, return to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; If so, the melt flow rate is input into a preset flow compensation equation to obtain a flow compensation value, and after the drawing control process reaches a preset time based on the flow compensation value, the process returns to obtain the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; Determine again whether the dynamic balance index is greater than a preset index threshold. If not, return to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; If so, the real-time temperature is input into a preset temperature compensation equation to obtain a temperature compensation value, and the wire drawing control process is guided based on the temperature compensation value.

[0006] Alternatively, the dynamic equilibrium equation is expressed as: BI=|1-[∑(T i *Q i ) / (η i *d i 2 )] / K|; Where BI is the dynamic balance index, T i is the real-time temperature of the i-th target leak plate, Q i is the melt flow rate of the i-th target bushing, η i is the real-time viscosity of the i-th target bushing, d i is the target fiber diameter at the i-th target bushing, K is the standard balance index, i=1, 2, 3, ..., n, and n is the number of target bushings.

[0007] Optionally, the real-time viscosity η i The expression is: η i =A*exp(E / (R*T i )) + B*ln(Q i / Q0); Where A is the first compensation factor, B is the second compensation factor, E is the viscous flow activation energy, R is the gas constant, and Q0 is the reference flow rate.

[0008] Optionally, the flow compensation equation is expressed as: ΔQ=ε(Q i / Q max ) 2 *sgn(d i -d); Where ΔQ is the flow compensation value, ε is the flow gain coefficient, Q max is the maximum flow rate of a single leak plate, d is the standard diameter of the fiber, sgn(d i -d) is the sign function, d i >d, sgn(d i -d)=-1,d i When sgn(d i -d)=1.

[0009] Optionally, the temperature compensation equation is expressed as: ΔT=0.15 / (∂η / ∂T)*(d i -d)+d(ΔQ) / dt*γ; Where ΔT is the temperature compensation value, ∂η / ∂T is the viscosity-temperature gradient, which represents the instantaneous rate of change of viscosity for every 1°C change in temperature, and γ is the suppression coefficient.

[0010] Optionally, before obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing, the following steps are further included: Analyze the raw material composition of basalt fiber to obtain the aluminum oxide content and iron oxide content; Determine whether an abnormal trigger condition is met based on the aluminum oxide content and the iron oxide content; wherein the abnormal trigger condition is that the aluminum oxide content is greater than a preset first content threshold or the iron oxide content is greater than a preset second content threshold; If so, the aluminum oxide content and the iron oxide content are input into a preset viscosity feedforward compensation model to obtain a viscosity feedforward compensation value Δη; According to the viscosity feedforward compensation value Δη, the wire drawing pre-adjustment parameters are obtained; wherein, the wire drawing pre-adjustment parameters include the wire drawing adjustment speed V' and the wire drawing compensation temperature T', V'=V0*(1-0.05Δη), V0 is the initial wire drawing speed, T'=δ*Δη, δ is the proportional coefficient.

[0011] Alternatively, the viscosity feedforward compensation model can be expressed as: Δη=0.02(C1-15%)+0.005(C2-12%); Wherein, C1 is the aluminum oxide content, and C is the iron oxide content.

[0012] To achieve the above objectives, the present application also provides a basalt fiber multi-leakage plate drawing control system, comprising: A parameter acquisition module is used to obtain the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; An index acquisition module, for inputting real-time temperature, real-time viscosity, melt flow rate and target fiber diameter into a preset dynamic balance equation to obtain a dynamic balance index; The first data processing module is used to determine whether the dynamic balance index is greater than a preset index threshold. If not, it returns to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; A flow compensation module is used to input the melt flow into a preset flow compensation equation to obtain a flow compensation value, and guide the drawing control process based on the flow compensation value to reach a preset time, and then return to obtain the real-time temperature, real-time viscosity, melt flow of the target bushing and the target fiber diameter at the target bushing; The second data processing module is used to determine again whether the dynamic balance index is greater than the preset index threshold. If not, it returns to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; The temperature compensation module is used to input the real-time temperature into a preset temperature compensation equation to obtain a temperature compensation value, and guide the wire drawing control process based on the temperature compensation value.

[0013] To achieve the above objectives, the present application also provides a computer device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the above method.

[0014] To achieve the above objectives, the present application also provides a computer-readable storage medium, on which a computer program is stored. A processor executes the computer program to implement the above method.

[0015] The beneficial effects that can be achieved by this application are as follows: Since the monitoring object of this application is a multi-leak plate fiber drawing production line, it is difficult to ensure monitoring accuracy if only a single indicator is monitored. Therefore, the monitoring indicators of this application include the real-time temperature, real-time viscosity, melt flow rate of the target leak plate and the target fiber diameter at the target leak plate. The above multiple parameter indicators are input into the preset dynamic balance equation, and the dynamic balance index can be quantitatively calculated to obtain the dynamic balance index, so as to comprehensively evaluate whether the status of the multi-leak plate fiber drawing production line is abnormal through multi-source monitoring parameter indicators, thereby ensuring monitoring accuracy. However, due to the need to combine multi-source monitoring indicators, the calculation efficiency is reduced and the subsequent control efficiency is low. Therefore, in order to take into account the control efficiency while ensuring monitoring accuracy, when it is judged that the dynamic balance index is greater than the preset index threshold, the compensation adjustment mechanism is triggered. Here, the melt flow rate is first input into the preset flow compensation equation. The process is carried out to obtain the flow compensation value, so as to guide the drawing control process based on the flow compensation value. Since flow regulation can quickly adjust the fiber drawing diameter, flow regulation is first performed to achieve the purpose of transient response. When the flow regulation continues for a preset time, the above-mentioned multiple parameter indicators are collected again to calculate whether the dynamic balance index meets the standard. If it does not meet the standard, the real-time temperature is input into the preset temperature compensation equation to obtain the temperature compensation value, so as to guide the drawing control process based on the temperature compensation value. Since the temperature regulation response is slow, but it can effectively adjust the viscosity to adjust the drawing diameter, the temperature regulation is used as a lag compensation when the flow regulation effect is not ideal. Therefore, by reasonably planning the priority of the control indicators, the control efficiency is improved on the basis of ensuring the control effect, so as to achieve the purpose of production line balance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a flow chart of a basalt fiber multi-leakage plate drawing control method in an embodiment of the present application; Figure 2 This is a schematic diagram of the framework of a basalt fiber multi-leakage plate drawing control system in an embodiment of the present application.

[0018] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0021] In this application, unless otherwise specified or limited, the terms "connection" and "fixed" should be understood in a broad sense. For example, "connection" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0023] Example 1 Reference Figure 1 This embodiment provides a basalt fiber multi-leakage plate drawing control method, comprising the following steps: Obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; Inputting real-time temperature, real-time viscosity, melt flow rate, and target fiber diameter into a preset dynamic balance equation to obtain a dynamic balance index; Determine whether the dynamic balance index is greater than a preset index threshold. If not, return to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; If so, the melt flow rate is input into the preset flow compensation equation to obtain the flow compensation value; After the drawing control process reaches the preset time based on the flow compensation value, it returns to obtain the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; Determine again whether the dynamic balance index is greater than a preset index threshold. If not, return to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; If so, the real-time temperature is input into a preset temperature compensation equation to obtain a temperature compensation value, and the wire drawing control process is guided based on the temperature compensation value.

[0024] In the present embodiment, since the monitoring object of the present embodiment is a multi-leakage plate fiber drawing production line, it is difficult to ensure the monitoring accuracy if only a single indicator is monitored. Therefore, the monitoring indicators of the present application include the real-time temperature, real-time viscosity, melt flow rate and target fiber diameter of the target leakage plate. The above multiple parameter indicators are input into the preset dynamic balance equation, and the dynamic balance index can be quantitatively calculated to obtain the dynamic balance index, so as to comprehensively evaluate whether the state of the multi-leakage plate fiber drawing production line is abnormal through multi-source monitoring parameter indicators, thereby ensuring the monitoring accuracy. However, due to the need to combine multi-source monitoring indicators, the calculation efficiency is reduced, and the subsequent control efficiency is low. Therefore, in order to take into account the control efficiency while ensuring the monitoring accuracy, when it is judged that the dynamic balance index is greater than the preset index threshold, the compensation adjustment mechanism is triggered. Here, the melt flow rate is first input into the preset flow A flow compensation equation is used to obtain a flow compensation value, thereby guiding the drawing control process based on the flow compensation value. Since flow regulation can quickly adjust the fiber drawing diameter, flow regulation is first performed to achieve the purpose of transient response. When the flow regulation continues for a preset time, the above-mentioned multiple parameter indicators are collected again to calculate whether the dynamic balance index meets the standard. If it does not meet the standard, the real-time temperature is input into the preset temperature compensation equation to obtain the temperature compensation value, thereby guiding the drawing control process based on the temperature compensation value. Since temperature regulation responds slowly, but can effectively adjust the viscosity to adjust the drawing diameter, temperature regulation is used as a lag compensation when the flow regulation effect is not ideal, thereby reasonably planning the priority of the control indicators, improving the control efficiency on the basis of ensuring the control effect, so as to achieve the purpose of production line balance.

[0025] As an optional implementation, the dynamic equilibrium equation is expressed as: BI=|1-[∑(T i *Q i ) / (η i *d i 2 )] / K|; Where BI is the dynamic balance index, T i is the real-time temperature of the i-th target leak plate, Q i is the melt flow rate of the i-th target bushing, η i is the real-time viscosity of the i-th target bushing, d i is the target fiber diameter at the i-th target bushing, K is the standard balance index, i=1, 2, 3, ..., n, and n is the number of target bushings.

[0026] In this embodiment, the dynamic balance index BI can be quantitatively calculated by inputting the collected multiple monitoring parameters into the above dynamic balance equation, where T i *Q i (the product of temperature and flow rate) is used to characterize the thermal energy input to reflect the heat carried by the melt, ηi *d i 2 Used to characterize the relationship between flow resistance (viscosity) and forming energy (diameter squared and related to surface tension), (T i *Q i ) / (η i *d i 2 ) is the measured balance index corresponding to a single target leak plate, and the sum of the measured balance indices corresponding to n target leak plates can reflect the balance state of the multi-leak plate fiber drawing production line, and set a standard balance index K (which can be set according to the empirical range value). Here, K is determined by the thermodynamic characteristics of the furnace and reflects the energy conservation level of the system's steady state. According to the above formula, if the sum of the measured balance indices is too large or too small, the final dynamic balance index BI will be too large, thereby indicating that the sum of the measured balance indices should be within the range of the standard balance index K to meet the standard. Based on the dynamic balance equation, a cross-leak plate dynamic balance relationship of temperature, flow, viscosity, and diameter is established, so that multi-source parameters can be effectively linked, reflecting and quantitatively evaluating the dynamic balance index of the multi-leak plate fiber drawing production line as a whole, and automatically triggering the compensation adjustment mechanism when the dynamic balance index is abnormal, which has far-reaching guiding significance and reference significance.

[0027] It should be noted that an infrared thermometer can be used to collect the real-time temperature of the leak plate, and the error of environmental thermal radiation needs to be compensated; the melt flow rate can be collected based on a Coriolis mass flowmeter, and the pressure loss correction caused by viscosity needs to be considered; the target fiber diameter here is the average value of the diameters of multiple fibers at a single target leak plate, and the diameter data can be detected by a laser diameter gauge or by machine vision recognition technology; the real-time viscosity can be detected by an online rotational viscometer or calculated by a viscosity prediction model.

[0028] As an optional embodiment, the real-time viscosity η i The expression is: η i =A*exp(E / (R*T i )) + B*ln(Q i / Q0); Where A is the first compensation factor, B is the second compensation factor, E is the viscous flow activation energy, R is the gas constant, and Q0 is the reference flow rate.

[0029] In this embodiment, the real-time viscosity η i The expression is the calculation formula of the viscosity prediction model. By taking the collected real-time temperature T i and melt flow Q iInput the above formula, and the first compensation factor A, the second compensation factor B, the viscous flow activation energy E, the gas constant R and the reference flow rate Q0 are all calibrated values, so that the predicted real-time viscosity η can be quickly calculated. i , the setting of viscosity measuring instrument can be cancelled, which reduces the cost and further improves the calculation efficiency. In the above formula, A*exp(E / (R*T i )) is used to describe the exponential effect of temperature on viscosity, B*ln(Q i / Q0) is used to describe the shear thinning effect caused by flow changes. Superimposing the two values ​​can integrate the thermodynamic and rheological responses to achieve dynamic coupled viscosity prediction.

[0030] It should be noted that the first compensation factor A can be obtained through melt composition analysis and is generally taken as 1.8~2.2; the second compensation factor B is equivalent to the shear thinning coefficient, and its value can be obtained by measuring the viscosity at different flow rates and taking the slope of the fitting curve; the viscous flow activation energy E is related to the composition of basalt (for example, when the SiO2 content is greater than 50%, E≈180 kJ / mol); the reference flow rate Q0 can be taken as 60% of the designed maximum flow rate.

[0031] As an optional implementation, the flow compensation equation is expressed as: ΔQ=ε(Q i / Q max ) 2 *sgn(d i -d); Where ΔQ is the flow compensation value, ε is the flow gain coefficient, Q max is the maximum flow rate of a single leak plate, d is the standard diameter of the fiber, sgn(d i -d) is the sign function, d i >d, sgn(d i -d)=-1,d i When sgn(d i -d)=1.

[0032] In this embodiment, the flow gain coefficient ε is negatively correlated with the aperture of the leak plate. The smaller the aperture, the larger the ε value (indicating a higher compensation sensitivity), and is generally set at 0.03~0.05. The maximum flow rate Q of the single leak plate design is max It is related to the number of holes in the bushing, for example, 800 holes of the bushing is 120 g / min; through the quadratic term (Q i / Q max ) 2 Strengthen the adjustment weight of the large flow plate to avoid over-compensation of the small flow plate, ε(Q i / Q max ) 2 That is, it characterizes the flow that needs to be compensated, and combines the sign function. When di When d > d, it means the diameter is too large, then -1 is output, which indicates that the flow rate needs to be reduced to make the fiber thinner. i When ΔQ is less than d, the output is 1, which represents the value of ΔQ, indicating that the flow rate needs to be increased to make the fiber thicker, and the flow compensation value is finally accurately calculated.

[0033] As an optional implementation, the temperature compensation equation is expressed as: ΔT=0.15 / (∂η / ∂T)*(d i -d)+d(ΔQ) / dt*γ; Where ΔT is the temperature compensation value, ∂η / ∂T is the viscosity-temperature gradient, which represents the instantaneous rate of change of viscosity for every 1°C change in temperature, and γ is the suppression coefficient.

[0034] In this embodiment, 0.15 / (∂η / ∂T)*(d i -d) is the main compensation item, and its mechanism is: diameter deviation (d i -d) is converted into a temperature compensation value through the viscosity-temperature gradient, where 0.15 is the empirical coefficient, corresponding to the viscosity change that needs to be compensated for a 1% diameter deviation, and ∂η / ∂T represents the instantaneous rate of change of viscosity for every 1°C temperature change. Since the viscosity of basalt melt decreases with increasing temperature, its gradient is always negative, indicating that the smaller the absolute value of the gradient, the larger the temperature compensation value required for the same diameter deviation (low viscosity melt requires a larger temperature rise correction diameter); (d i -d) represents the deviation of the single-leakage plate fiber diameter from the standard diameter. d(ΔQ) / dt*γ is a dynamic correction term, whose purpose is to suppress secondary fluctuations caused by sudden flow changes. d(ΔQ) / dt represents the flow rate change rate, that is, the changing trend of the flow regulation amount per unit time (positive values ​​indicate acceleration, negative values ​​indicate deceleration). The suppression coefficient γ is used to suppress temperature overshoot caused by rapid flow adjustment and is generally set between 0.02 and 0.03. By substituting the parameters into the above formula, the temperature compensation value ΔT can be accurately calculated.

[0035] As an optional embodiment, before obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing, the following steps are also included: Analyze the raw material composition of basalt fiber to obtain the aluminum oxide content and iron oxide content; Determine whether an abnormal trigger condition is met based on the aluminum oxide content and the iron oxide content; wherein the abnormal trigger condition is that the aluminum oxide content is greater than a preset first content threshold or the iron oxide content is greater than a preset second content threshold; If so, the aluminum oxide content and the iron oxide content are input into a preset viscosity feedforward compensation model to obtain a viscosity feedforward compensation value Δη; According to the viscosity feedforward compensation value Δη, the wire drawing pre-adjustment parameters are obtained; wherein, the wire drawing pre-adjustment parameters include the wire drawing adjustment speed V' and the wire drawing compensation temperature T', V'=V0*(1-0.05Δη), V0 is the initial wire drawing speed, T'=δ*Δη, δ is the proportional coefficient (δ can be 6~8).

[0036] In this embodiment, component analysis (XRF testing) is completed within a certain period of time after raw material crushing, primarily including aluminum oxide (Al2O3) and iron oxide (Fe2O3) content testing. If either of the abnormal trigger conditions (aluminum oxide content exceeding a preset first threshold or iron oxide content exceeding a preset second threshold) is met, viscosity prediction and parameter pre-adjustment are immediately initiated. The aluminum oxide and iron oxide contents are input into a preset viscosity feedforward compensation model to obtain a viscosity feedforward compensation value Δη. Viscosity offset is thus predicted in real time based on the raw material composition, allowing advance adjustment of wire drawing process parameters, including the wire drawing adjustment speed V' and the wire drawing compensation temperature T'. As Δη increases, the wire drawing adjustment speed V' correspondingly decreases. By adjusting the wire drawing speed in advance, diameter deviation caused by composition fluctuations is offset to prevent wire breakage. Simultaneously, the wire drawing compensation temperature T' is correspondingly increased for temperature compensation. This prevents measurable interference sources (such as ore composition fluctuations) from entering the melting system, further improving the wire drawing diameter qualification rate and reducing the risk of wire breakage.

[0037] As an optional implementation, the viscosity feedforward compensation model is expressed as: Δη=0.02(C1-15%)+0.005(C2-12%); Wherein, C1 is the aluminum oxide content, and C is the iron oxide content.

[0038] In this embodiment, after the aluminum oxide content and the iron oxide content are detected, they are substituted into the above formula to calculate the viscosity feedforward compensation value Δη, where 15% is the component threshold corresponding to the optimal fiberizing viscosity of basalt, and 12% is the critical iron content for maintaining melt fluidity. The fluctuation of the raw material composition is then linked to determine whether the viscosity feedforward compensation is triggered, thereby further improving the wire drawing quality.

[0039] Example 2 Reference Figure 1-Figure 2 Based on the same inventive concept as the above embodiment, this embodiment further provides a basalt fiber multi-leakage plate drawing control system, comprising: A parameter acquisition module is used to obtain the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; An index acquisition module, for inputting real-time temperature, real-time viscosity, melt flow rate and target fiber diameter into a preset dynamic balance equation to obtain a dynamic balance index; The first data processing module is used to determine whether the dynamic balance index is greater than a preset index threshold. If not, it returns to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; A flow compensation module is used to input the melt flow into a preset flow compensation equation to obtain a flow compensation value, and guide the drawing control process based on the flow compensation value to reach a preset time, and then return to obtain the real-time temperature, real-time viscosity, melt flow of the target bushing and the target fiber diameter at the target bushing; The second data processing module is used to determine again whether the dynamic balance index is greater than the preset index threshold. If not, it returns to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; The temperature compensation module is used to input the real-time temperature into a preset temperature compensation equation to obtain a temperature compensation value, and guide the wire drawing control process based on the temperature compensation value.

[0040] The relevant explanations and examples of each module in the system of this embodiment can refer to the methods of the aforementioned embodiments and will not be repeated here.

[0041] Example 3 Based on the same inventive concept as the above embodiment, this embodiment provides a computer device, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the above method.

[0042] Example 4 Based on the same inventive concept as the above embodiment, this embodiment provides a computer-readable storage medium, on which a computer program is stored. A processor executes the computer program to implement the above method.

[0043] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A basalt fiber multi-leakage plate drawing control method, characterized in that: The following steps are involved: Obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; Inputting real-time temperature, real-time viscosity, melt flow rate, and target fiber diameter into a preset dynamic balance equation to obtain a dynamic balance index; Determine whether the dynamic balance index is greater than a preset index threshold. If not, return to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; If so, the melt flow rate is input into a preset flow compensation equation to obtain a flow compensation value, and after the drawing control process reaches a preset time based on the flow compensation value, the process returns to obtain the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; Determine again whether the dynamic balance index is greater than a preset index threshold. If not, return to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; If so, the real-time temperature is input into a preset temperature compensation equation to obtain a temperature compensation value, and the wire drawing control process is guided based on the temperature compensation value.

2. A basalt fiber multi-leakage plate drawing control method according to claim 1, characterized in that: The expression of the dynamic equilibrium equation is: BI=|1-[∑(T i *Q i ) / (η i *d i 2 )] / K|; Where BI is the dynamic balance index, T i is the real-time temperature of the i-th target leak plate, Q i is the melt flow rate of the i-th target bushing, η i is the real-time viscosity of the i-th target bushing, d i is the target fiber diameter at the i-th target bushing, K is the standard balance index, i=1, 2, 3, ..., n, and n is the number of target bushings.

3. A basalt fiber multi-leakage plate drawing control method according to claim 2, characterized in that: Real-time viscosity η i The expression is: η i =A*exp(E / (R*T i )) + B*ln(Q i / Q0); Where A is the first compensation factor, B is the second compensation factor, E is the viscous flow activation energy, R is the gas constant, and Q0 is the reference flow rate.

4. A basalt fiber multi-leakage plate drawing control method according to claim 2 or 3, characterized in that: The expression of the flow compensation equation is: ΔQ=ε(Q i / Q max ) 2 *sgn(d i -d); Where ΔQ is the flow compensation value, ε is the flow gain coefficient, Q max is the maximum flow rate of a single leak plate, d is the standard diameter of the fiber, sgn(d i -d) is the sign function, d i >d, sgn(d i -d)=-1,d i When sgn(d i -d)=1.

5. The basalt fiber multi-leakage plate drawing control method according to claim 4, characterized in that: The expression of the temperature compensation equation is: ΔT=0.15 / (∂η / ∂T)*(d i -d)+d(ΔQ) / dt*γ; Where ΔT is the temperature compensation value, ∂η / ∂T is the viscosity-temperature gradient, which represents the instantaneous rate of change of viscosity for every 1°C change in temperature, and γ is the suppression coefficient.

6. The basalt fiber multi-leakage plate drawing control method according to claim 1, characterized in that: Before obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing, the following steps are also included: Analyze the raw material composition of basalt fiber to obtain the aluminum oxide content and iron oxide content; Determine whether an abnormal trigger condition is met based on the aluminum oxide content and the iron oxide content; wherein the abnormal trigger condition is that the aluminum oxide content is greater than a preset first content threshold or the iron oxide content is greater than a preset second content threshold; If so, the aluminum oxide content and the iron oxide content are input into a preset viscosity feedforward compensation model to obtain a viscosity feedforward compensation value Δη; According to the viscosity feedforward compensation value Δη, the wire drawing pre-adjustment parameters are obtained; wherein, the wire drawing pre-adjustment parameters include the wire drawing adjustment speed V' and the wire drawing compensation temperature T', V'=V0*(1-0.05Δη), V0 is the initial wire drawing speed, T'=δ*Δη, δ is the proportional coefficient.

7. A basalt fiber multi-leakage plate drawing control method according to claim 6, characterized in that: The expression of the viscosity feedforward compensation model is: Δη=0.02(C1-15%)+0.005(C2-12%); Wherein, C1 is the aluminum oxide content, and C is the iron oxide content.

8. A basalt fiber multi-leakage plate drawing control system, characterized in that: include: A parameter acquisition module is used to obtain the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; An index acquisition module, for inputting real-time temperature, real-time viscosity, melt flow rate and target fiber diameter into a preset dynamic balance equation to obtain a dynamic balance index; The first data processing module is used to determine whether the dynamic balance index is greater than a preset index threshold. If not, it returns to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; A flow compensation module is used to input the melt flow into a preset flow compensation equation to obtain a flow compensation value, and guide the drawing control process based on the flow compensation value to reach a preset time, and then return to obtain the real-time temperature, real-time viscosity, melt flow of the target bushing and the target fiber diameter at the target bushing; The second data processing module is used to determine again whether the dynamic balance index is greater than the preset index threshold. If not, it returns to obtaining the real-time temperature, real-time viscosity, melt flow rate of the target bushing and the target fiber diameter at the target bushing; The temperature compensation module is used to input the real-time temperature into a preset temperature compensation equation to obtain a temperature compensation value, and guide the wire drawing control process based on the temperature compensation value.

9. A computer device, characterized in that: The computer device includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and the processor executes the computer program to implement the method according to any one of claims 1 to 7.

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