Method, system and equipment for automatically controlling liquid level of glass kiln

Abstract

The invention discloses a glass kiln liquid level automatic control method, system and equipment. The method comprises the following steps: calculating a reference frequency Fj of feeding on the basis of an obtained calculation parameter and a production line lead-out quantity Qy; calculating an error frequency Fc based on the measured glass liquid level height and a set production line lead-out quantity Qy; and based on the error frequency Fc and the reference frequency Fj, calculating to obtain a feeding frequency F, and based on the feeding frequency F, controlling a feeding machine to feed. According to the method, through intelligent calculation and control logic, accurate management of the liquid level of the glass kiln is achieved, the production efficiency is improved, the problems of resource waste and product quality caused by unstable liquid level are solved, and the production cost is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of liquid crystal substrate glass production, and in particular to a glass furnace liquid level automatic control method, system and equipment. Background Art

[0002] Glass manufacturing is an important industrial production activity, and glass kilns are indispensable equipment. In the control of glass kilns, liquid level control has always been one of the most important and critical factors. Stable control of liquid level has an important impact on the operation of glass kilns and product quality. The fluctuation of liquid level directly affects the amount of lead-out, the weight and thickness of the finished product.

[0003] Although the fixed-frequency feeding method widely used at present has achieved the continuity and stability of feeding to a certain extent, this single control strategy seems to be unable to cope with the complex and changeable operating environment inside the glass furnace. The environmental parameters inside the glass furnace, such as furnace pressure, ambient temperature, platinum channel temperature and molding temperature, will fluctuate with the changes of various factors such as production cycle, raw material quality, external climate conditions, etc. Slight changes in these parameters may have a significant impact on the fluidity, surface tension and even the overall composition of the glass liquid, and then cause the instability of the liquid level. The instability of the liquid level will not only cause the fluctuation of the amount of glass liquid drawn out, affecting the continuity of the production rhythm, but more importantly, it will directly affect the weight, thickness and overall uniformity of the final product. For high-precision liquid crystal substrate glass, any slight dimensional deviation or uneven quality may become a product defect, reduce the yield rate and increase production costs. Summary of the invention

[0004] In order to solve the problem that the existing glass furnace liquid level control by quantitative feeding of a feeder has poor effect and is easily affected by a complex and changeable operating environment, resulting in reduced yield and increased production costs, the present invention provides a glass furnace liquid level automatic control method, system and equipment.

[0005] To achieve the above object, the present invention provides the following technical solutions: The present invention proposes a glass furnace liquid level automatic control method, comprising the steps of: The reference frequency Fj of feeding is calculated based on the obtained calculation parameters and the production line lead-out quantity Qy; The error frequency Fc is calculated based on the measured glass liquid level height and the set production line lead-out amount Qy; The feeding frequency F is calculated based on the error frequency Fc and the reference frequency Fj; Based on the feeding frequency F, the feeding machine is controlled to feed.

[0006] Preferably, the calculation process of obtaining the feeding frequency F based on the error frequency Fc and the reference frequency Fj is: F = Fj + Fc; Among them, Fj is the reference frequency and Fc is the error frequency.

[0007] Preferably, the method of calculating the reference frequency Fj of feeding based on the obtained calculation parameters and the production line lead-out amount Qy includes: Based on the mechanical parameters of the feeder, the rated feed amount Qe of the feeder is calculated; The production line lead-out amount Qy is set, and the reference feed amount Qj is calculated based on the production line lead-out amount Qy; The reference frequency Fj is calculated based on the number Nt of the feeders, the rated feed amount Qe and the reference feed amount Qj.

[0008] Preferably, the calculation process of the reference frequency Fj is: Fj=Qj / Nt / Qe*50; Among them, Fj is the reference frequency, Qj is the reference feed amount, Nt is the number of feeders; Qe is the rated feed amount.

[0009] Preferably, the mechanical parameters include the spiral blade diameter D, the spiral pitch S, the motor rated speed and the transmission ratio.

[0010] Preferably, the error frequency Fc is calculated based on the measured glass liquid level height and the set production line lead-out amount Qy, including: The reference feed amount Q1 is calculated based on the acquired size information of the glass furnace; The liquid level height difference H is calculated based on the set reference liquid level height He and the obtained glass liquid level height Hi; The response time T is calculated based on the production line lead-out amount Qy, the size information and the glass liquid density ρ; The error frequency Fc is calculated based on the liquid level height difference H, the number of the feeders Nt, the response time T, the feed amount Q1 per unit height of the liquid level, and the rated feed amount Qe.

[0011] Preferably, the calculation process of the error frequency Fc is: Fc= H*Q1 / (T*Qe*Nt)*50; Among them, Fc is the error frequency, Nt is the number of feeders; T is the response time, Q1 is the feed amount per unit height of the liquid level, Qe is the rated feed amount, and H is the height difference.

[0012] Preferably, the response time T is calculated from the production line lead-out amount Qy, the size information and the glass liquid density ρ, including: Calculating the flow rate V of the molten glass based on the production line lead-out amount Qy, the size information and the density ρ of the molten glass; Measure the distance from the feeding port to the liquid level in the glass furnace to obtain the measured distance M; Based on the flow velocity V and the measured distance M, the response time T is calculated.

[0013] The present invention proposes a glass furnace liquid level automatic control system, which is used to implement the steps of a glass furnace liquid level automatic control method as described in the claims, including: A first processor is used to calculate a reference frequency Fj of feeding based on the obtained calculation parameters and the production line lead-out amount Qy; A second processor is used to calculate the error frequency Fc based on the measured glass liquid level height and the set production line lead-out amount Qy; A third processor is used for calculating the feeding frequency F based on the error frequency Fc and the reference frequency Fj; The controller is used to control the feeding of the feeder based on the feeding frequency F.

[0014] The present invention proposes a computer device, including a processor and a memory, wherein the memory is used to store a computer program, and the computer program includes program instructions. When the processor executes the computer program, the steps of the above-mentioned glass furnace liquid level automatic control method are implemented.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention proposes a method for automatic control of liquid level in a glass kiln. The method determines a reference frequency Fj of feeding by calculating parameters and a production line lead-out amount Qy, thereby ensuring the initial accuracy of the feeding amount. The error frequency Fc is calculated by comparing the actual measured glass liquid level height with the preset production line lead-out amount Qy. The method can instantly capture liquid level deviations, reflecting the system's keen response capability to real-time changes. The error frequency Fc is combined with the reference frequency Fj to calculate a final feeding frequency F, correcting the current liquid level deviation. The method also effectively prevents possible future liquid level fluctuations by dynamically adjusting the feeding rate, thereby ensuring the continuous stability of the glass liquid surface. The method realizes precise management of the liquid level in the glass kiln through intelligent calculation and control logic, thereby improving production efficiency, reducing resource waste and product quality problems caused by unstable liquid level, and reducing production costs.

[0016] Furthermore, this method ensures that the working efficiency of each feeder is maximized by accurately calculating the rated feed amount Qe of the feeder, determines the reference feed amount Qj according to the set production line lead-out amount Qy, ensures the continuity and stability of the production process, and calculates the reference frequency Fj by combining the number of feeders Nt, the rated feed amount Qe and the reference feed amount Qj, thereby improving the accuracy of feeding and realizing dynamic regulation of the production process, significantly improving the control accuracy of the glass kiln liquid level and production efficiency.

[0017] Furthermore, this method determines the liquid level height difference H by comparing the kiln size information with the reference liquid level height, which intuitively reflects the gap between the current liquid level and the target liquid level. Combined with the production line lead-out volume, kiln size and glass liquid density, the response time T is scientifically calculated, and key parameters such as the liquid level height difference H, the number of feeders Nt, the response time T, the feed amount Q1 per unit height of the liquid level and the rated feed amount Qe are incorporated into the calculation of the error frequency Fc. This not only ensures the accuracy and comprehensiveness of the error assessment, but also realizes the dynamic adjustment of the feed frequency, effectively shortens the time for the liquid level to return to the target state, and significantly improves the control accuracy and response speed of the glass kiln liquid level.

[0018] Furthermore, this method accurately calculates the flow rate V of the molten glass through the production line lead-out volume, kiln size and molten glass density, and obtains the distance M from the feed port to the liquid level surface through actual measurement, which directly reflects the physical space requirement for liquid level adjustment. The flow rate V is combined with the measured distance M to calculate the response time T, thereby achieving accurate estimation of the liquid level adjustment time, effectively shortening the liquid level adjustment cycle, and improving the flexibility and response speed of the production line.

[0019] The present invention proposes a glass kiln liquid level automatic control system. The system realizes the comprehensive execution and optimization of the glass kiln liquid level automatic control method by integrating a first, a second and a third processor. The first processor accurately calculates the reference frequency Fj, providing scientific initial guidance for feeding; the second processor analyzes the difference between the liquid level height and the production line lead-out amount in real time, and quickly calculates the error frequency Fc, ensuring the timeliness and accuracy of the control; the third processor integrates the information of the first two and intelligently adjusts the feeding frequency F, thereby realizing the dynamic balance and efficient management of the liquid level, improving the automation level of liquid level control, and significantly enhancing the stability and flexibility of the production line, reducing the need for human intervention, and improving the efficiency and quality of glass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic flow chart of a glass furnace liquid level automatic control method proposed by the present invention; Figure 2 A schematic diagram of a computer device provided by an embodiment of the present invention; DETAILED DESCRIPTION In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying 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 one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] See also Figure 1 The present invention discloses a glass furnace liquid level automatic control method, comprising the following steps: The reference frequency Fj of feeding is calculated based on the obtained calculation parameters and the production line lead-out quantity Qy; Based on the mechanical parameters of the feeder, the rated feed amount Qe of the feeder is calculated; Among them, the mechanical parameters include the spiral blade diameter D, spiral pitch S, motor rated speed and transmission ratio; in the process of obtaining the mechanical parameters, the spiral blade diameter D and spiral pitch S can be obtained by measuring with a caliper; the motor rated speed and transmission ratio can be obtained by consulting the manual of the feeder; The specific process is as follows: measure the spiral blade and spiral pitch of the feeder to obtain the spiral blade diameter D and spiral pitch S respectively; Check the manual of the material machine to get the rated speed and transmission ratio of the motor; The screw shaft speed n is calculated based on the rated speed of the motor and the transmission ratio; The calculation formula of the screw shaft speed n is: n=rated motor speed*transmission ratio.

[0027] The rated feed rate Qe is calculated based on the spiral blade diameter D, spiral pitch S and spiral shaft speed n; Among them, the calculation process of the rated feed amount Qe is: Qe=47D 2 Snψ; Among them, Qe is the conveying capacity, unit is t / h; D is the diameter of the spiral blade, unit is mm; S represents the pitch, unit is mm; n represents the speed of the screw shaft, unit is γ / min; ψ is the filling factor, its value depends on the friction and adhesion of the conveyed material, the pitch and the inclination angle of the center line of the screw conveyor, and the filling factor is usually 0.33.

[0028] Set the production line lead-out quantity Qy, and calculate the reference feed quantity Qj based on the production line lead-out quantity Qy; The calculation process of the reference feed amount Qj is: Qj=Qy / ŋ; Wherein, ŋ is the conversion rate; different powder ratios have different conversion rates. In this embodiment, according to the ratio of 25% of broken glass to 75% of powder, the conversion rate ŋ is 0.89.

[0029] The reference frequency Fj is calculated based on the number Nt of feeders, the rated feed amount Qe and the reference feed amount Qj; The calculation process of the reference frequency Fj is: Fj=Qj / Nt / Qe*50; Among them, Fj is the reference frequency, unit HZ; Qj is the reference feed amount, unit t / h; Nt is the number of feeders; Qe is the rated feed amount, unit t / h.

[0030] The error frequency Fc is calculated based on the measured glass liquid level height and the production line lead-out amount Qy; The reference feed amount Q1 is calculated based on the acquired size information of the glass furnace; Specifically, by measuring the actual size of the glass furnace or obtaining the design drawing information of the glass furnace, the length L and width W of the melting pool in the glass furnace are obtained; Obtain the density ρ and conversion rate ŋ of the glass liquid. The density ρ of the glass liquid adopts a constant, specifically ρ=2.5×10-9t / mm³; The feed amount Q1 per unit height of the liquid level is calculated based on the length L of the melting pool, the width W of the melting pool, the density ρ of the glass liquid and the conversion rate ŋ; The calculation process of the feeding amount Q1 per unit height of liquid level is: Q1=L*W*ρ*ŋ; Among them, Q1 represents the feeding amount per unit height of liquid level, in t / mm; L is the length of the glass furnace, in m‌m; W is the width of the furnace, in m‌m; ρ is the density of the glass liquid, in t / mm 3 ; ŋ is the conversion rate. The same powder ratio has different conversion rates.

[0031] Measure the liquid level in the glass furnace to obtain the glass liquid level Hi; The liquid level height difference H is calculated based on the set reference liquid level height He and glass liquid level height Hi, wherein H is positive, indicating that the glass liquid level height Hi is lower than the reference liquid level height He, and H is negative, indicating that the glass liquid level height Hi is higher than the reference liquid level height He; The calculation process of the liquid level height difference H is: H = He-Hi; Among them, Hi is the glass liquid level height, and He is the reference liquid level height.

[0032] The flow rate V of the molten glass is calculated based on the production line lead-out amount Qy, the length L of the molten pool, the width W of the molten pool, and the density ρ of the molten glass; The calculation process of flow velocity V is: V = Qy / WLρ; Among them, Qy is the output of the production line; L is the length of the glass furnace, in m‌m; W is the width of the furnace, in m‌m; ρ is the density of the glass liquid, in t / mm 3 .

[0033] Measure the distance from the feeding port to the liquid level in the glass furnace to obtain the measured distance M; The response time T is calculated based on the flow velocity V and the measured distance M, where the standard range of T is 0.15-1.0h; The calculation process of response time T is: T = M / V; Among them, M is the measured distance and V is the flow velocity.

[0034] The error frequency Fc is calculated based on the liquid level height difference H, the number of feeders Nt, the response time T, the feed amount Q1 per unit height of the liquid level and the rated feed amount Qe; The calculation process of error frequency Fc is: Fc= H*Q1 / (T*Qe*Nt)*50; Among them, Fc is the error frequency, unit HZ; Nt is the number of feeders; T is the response time, unit h; Q1 is the feed amount per unit height of liquid level, Qe is the rated feed amount, unit t / h; H is the height difference.

[0035] The feeding frequency F is calculated based on the error frequency Fc and the reference frequency Fj; The calculation process of feeding frequency F is: F=Fj+Fc, that is, F= Qj / Nt / Qe*50+ H*Q1 / (T*Qe*Nt)*50; Where Fj is the reference frequency and Fc is the error frequency The calculated feeding frequency F is used to control the feeding machine to feed the glass furnace.

[0036] In another embodiment of the present invention, a glass furnace liquid level automatic control system is provided, which can be used to implement the above-mentioned glass furnace liquid level automatic control method. Specifically, the glass furnace liquid level automatic control system includes a first processor, a second processor, a third processor and a controller.

[0037] The first processor is used to calculate the reference frequency Fj of feeding based on the obtained calculation parameters and the production line lead-out amount Qy; A second processor is used to calculate the error frequency Fc based on the measured glass liquid level height and the set production line lead-out amount Qy; A third processor is used for calculating the feeding frequency F based on the error frequency Fc and the reference frequency Fj; The controller is used to control the feeding of the feeder based on the feeding frequency F.

[0038] In another embodiment of the present invention, a terminal device is provided, which includes a processor and a memory, wherein the memory is used to store a computer program, the computer program includes program instructions, and the processor is used to execute the program instructions stored in the computer storage medium. The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, which is suitable for implementing one or more instructions, and is specifically suitable for loading and executing one or more instructions to implement the corresponding method flow or corresponding function; the processor described in the embodiment of the present invention can be used for the operation of a glass furnace liquid level automatic control method, including: The reference frequency Fj of feeding is calculated based on the obtained calculation parameters and the production line lead-out amount Qy; the error frequency Fc is calculated based on the measured glass liquid level and the set production line lead-out amount Qy; the feeding frequency F is calculated based on the error frequency Fc and the reference frequency Fj, and the feeding of the feeder is controlled based on the feeding frequency F.

[0039] In another embodiment of the present invention, the present invention also provides a storage medium, specifically a computer-readable storage medium (Memory), which is a memory device in a terminal device for storing programs and data. It can be understood that the computer-readable storage medium here can include both the built-in storage medium in the terminal device and the extended storage medium supported by the terminal device. The computer-readable storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space, and these instructions can be one or more computer programs (including program codes). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory (Non-Volatile Memory), such as at least one disk memory.

[0040] The processor may load and execute one or more instructions stored in the computer-readable storage medium to implement the corresponding steps of the glass furnace liquid level automatic control method in the above embodiment; the processor may load and execute the following steps of one or more instructions in the computer-readable storage medium: The reference frequency Fj of feeding is calculated based on the obtained calculation parameters and the production line lead-out amount Qy; the error frequency Fc is calculated based on the measured glass liquid level and the set production line lead-out amount Qy; the feeding frequency is calculated based on the error frequency Fc and the reference frequency Fj, and the feeding F of the feeder is controlled based on the feeding frequency F.

[0041] See also Figure 2 The terminal device is a computer device. The computer device 60 of this embodiment includes: a processor 61, a memory 62, and a computer program 63 stored in the memory 62 and executable on the processor 61. When the computer program 63 is executed by the processor 61, the method for calculating the composition of fluid in the reservoir transformation wellbore in the embodiment is implemented. To avoid repetition, it is not described one by one here. Alternatively, when the computer program 63 is executed by the processor 61, the functions of each model / unit in the calculation system for the composition of fluid in the reservoir transformation wellbore in the embodiment are implemented. To avoid repetition, it is not described one by one here.

[0042] The computer device 60 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The computer device 60 may include, but is not limited to, a processor 61 and a memory 62. Those skilled in the art will appreciate that Figure 2 It is only an example of the computer device 60 and does not constitute a limitation of the computer device 60. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the computer device may also include input and output devices, network access devices, buses, etc.

[0043] The processor 61 may be a central processing unit (CPU), or other general-purpose processors, central processing units, graphics processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, data processing logic based on quantum computing, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0044] The memory 62 may be an internal storage unit of the computer device 60, such as a hard disk or memory of the computer device 60. The memory 62 may also be an external storage device of the computer device 60, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., equipped on the computer device 60.

[0045] Furthermore, the memory 62 may include both an internal storage unit of the computer device 60 and an external storage device. The memory 62 is used to store computer programs and other programs and data required by the computer device. The memory 62 may also be used to temporarily store data that has been output or is to be output.

[0046] Any reference to a memory, database or other medium used in the embodiments provided in the present application may include at least one of a non-volatile and a volatile memory. Non-volatile memory may include a read-only memory (ROM), a magnetic tape, a floppy disk, a flash memory, an optical memory, a high-density embedded non-volatile memory, a resistive random access memory (ReRAM), a magnetic random access memory (MRAM), a ferroelectric random access memory (FRAM), a phase change memory (PCM), a graphene memory, etc. Volatile memory may include a random access memory (RAM) or an external cache memory, etc. As an illustration and not limitation, RAM may be in various forms, such as a static random access memory (SRAM) or a dynamic random access memory (DRAM), etc.

[0047] The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a distributed database based on blockchain, etc., but is not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but is not limited thereto.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0049] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A glass furnace liquid level automatic control method, characterized in that: The steps include: The reference frequency Fj of feeding is calculated based on the obtained calculation parameters and the production line lead-out quantity Qy; The error frequency Fc is calculated based on the measured glass liquid level height and the set production line lead-out amount Qy; The feeding frequency F is calculated based on the error frequency Fc and the reference frequency Fj; Based on the feeding frequency F, the feeding machine is controlled to feed.

2. The automatic control method of liquid level in a glass furnace according to claim 1, characterized in that: The calculation process of obtaining the feeding frequency F based on the error frequency Fc and the reference frequency Fj is as follows: F = Fj + Fc; Among them, Fj is the reference frequency and Fc is the error frequency.

3. The automatic control method of liquid level in a glass furnace according to claim 1, characterized in that: The method of calculating the reference frequency Fj of feeding based on the obtained calculation parameters and the production line lead-out amount Qy includes: Based on the mechanical parameters of the feeder, the rated feed amount Qe of the feeder is calculated; The production line lead-out amount Qy is set, and the reference feed amount Qj is calculated based on the production line lead-out amount Qy; The reference frequency Fj is calculated based on the number Nt of the feeders, the rated feed amount Qe and the reference feed amount Qj.

4. A glass furnace liquid level automatic control method according to claim 3, characterized in that: The calculation process of the reference frequency Fj is: Fj=Qj / Nt / Qe*50; Among them, Fj is the reference frequency, Qj is the reference feed amount, Nt is the number of feeders; Qe is the rated feed amount.

5. The automatic control method of liquid level in a glass furnace according to claim 3, characterized in that: The mechanical parameters include the spiral blade diameter D, the spiral pitch S, the motor rated speed and the transmission ratio.

6. The automatic control method of liquid level in a glass furnace according to claim 1, characterized in that: The error frequency Fc is calculated based on the measured glass liquid level height and the set production line lead-out amount Qy, including: The reference feed amount Q1 is calculated based on the acquired size information of the glass furnace; The liquid level height difference H is calculated based on the set reference liquid level height He and the obtained glass liquid level height Hi; The response time T is calculated based on the production line lead-out amount Qy, the size information and the glass liquid density ρ; The error frequency Fc is calculated based on the liquid level height difference H, the number of the feeders Nt, the response time T, the feed amount Q1 per unit height of the liquid level, and the rated feed amount Qe.

7. The automatic control method of liquid level in a glass furnace according to claim 6, characterized in that: The calculation process of the error frequency Fc is: Fc= H*Q1 / (T*Qe*Nt)*50; Among them, Fc is the error frequency, Nt is the number of feeders; T is the response time, Q1 is the feed amount per unit height of the liquid level, Qe is the rated feed amount, and H is the height difference.

8. The glass furnace liquid level automatic control method according to claim 6 is characterized in that: The response time T is calculated based on the production line lead-out amount Qy, the size information and the glass liquid density ρ, including: Calculating the flow rate V of the molten glass based on the production line lead-out amount Qy, the size information and the density ρ of the molten glass; Measure the distance from the feeding port to the liquid level in the glass furnace to obtain the measured distance M; Based on the flow velocity V and the measured distance M, the response time T is calculated.

9. A glass furnace liquid level automatic control system, used to implement the steps of a glass furnace liquid level automatic control method as claimed in any one of claims 1 to 8, characterized in that: include: A first processor is used to calculate a reference frequency Fj of feeding based on the obtained calculation parameters and the production line lead-out amount Qy; A second processor is used to calculate the error frequency Fc based on the measured glass liquid level height and the set production line lead-out amount Qy; A third processor is used for calculating the feeding frequency F based on the error frequency Fc and the reference frequency Fj; The controller is used to control the feeding of the feeder based on the feeding frequency F.

10. A computer device comprising a processor and a memory, wherein the memory is used to store a computer program, wherein the computer program comprises program instructions, wherein: When the processor executes the computer program, the steps of the glass furnace liquid level automatic control method as described in any one of claims 1 to 8 are implemented.

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