Calcium carbonate grinding control method, calcium carbonate grinding machine, product and medium

Abstract

A calcium carbonate grinding control method, a calcium carbonate grinder, a product and a medium. The method comprises the following steps: after the calcium carbonate grinding machine starts to operate, monitoring internal and external pressure values of a filtering device in real time through a pressure sensor to obtain an internal pressure value, an external pressure value and an internal and external pressure difference; when the internal and external pressure difference reaches a preset pressure difference early warning threshold value, the air speed in the filtering device is increased by adjusting the opening degree of the air valve; when the internal and external pressure difference does not reach a preset pressure difference early warning threshold value, monitoring particle size distribution at an inlet of the filtering device to obtain a real-time small particle size finished product rate; according to the real-time pressure difference, the preset optimal pressure difference, the preset optimal small-particle-size finished product rate and the real-time small-particle-size finished product rate, the air valve opening degree adjusting amount is calculated; and the air valve opening degree is adjusted to be the latest air valve opening degree in real time according to the air valve opening degree adjustment amount. By implementing the technical scheme provided by the invention, the loss rate of the small-particle-size finished product of the calcium carbonate finished product is reduced.

Description

Technical Field

[0001] The present application relates to the field of industrial automation control technology, and in particular to a calcium carbonate grinding control method, a calcium carbonate grinder, a product and a medium. Background Art

[0002] With the development of industrial technology, calcium carbonate grinder is a key equipment in many industries. It can finely grind calcium carbonate, which is used to produce high-quality materials in the building materials industry, improve product performance in the plastic and rubber industry, and improve paper quality in the papermaking industry, meeting the requirements of different industries for calcium carbonate particle size and quality.

[0003] At present, the overall working process of the calcium carbonate grinder is that the raw materials enter the main machine from the feeder, the grinding medium in the main machine collides and rubs the calcium carbonate particles, and the qualified powder after grinding is attracted to the filter device by negative pressure. During the whole process, the wind speed is adjusted by the air valve control system to achieve fine grinding of calcium carbonate.

[0004] However, during the operation of the grinder, if the pipeline is blocked or the filter device is blocked, resulting in too low negative pressure, the air valve will be adjusted to increase the wind speed and thus increase the negative pressure. In this process, increasing the wind speed may cause the loss of fine powder; if the ventilation duct is blocked or the air outlet is blocked, resulting in too high negative pressure, the air valve will be adjusted to reduce the wind speed and thus reduce the negative pressure. In this process, reducing the wind speed may cause the fine powder to be unable to be transported to the collection area of ​​the filter device, thereby increasing the loss rate of small particle size finished calcium carbonate products. Summary of the invention

[0005] The present application provides a calcium carbonate grinding control method, a calcium carbonate grinder, a product and a medium, which are used to reduce the small particle size finished product loss rate of the calcium carbonate finished product.

[0006] In a first aspect, the present application provides a calcium carbonate grinding control method, comprising: After the calcium carbonate grinder starts running, the internal and external pressure values ​​of the filter device are monitored in real time through the pressure sensor to obtain the internal pressure value, the external pressure value and the internal and external pressure difference; when the internal and external pressure difference reaches the preset pressure difference warning threshold, the wind speed in the filter device is increased by adjusting the opening of the air valve; when the internal and external pressure difference does not reach the preset pressure difference warning threshold, the particle size distribution at the inlet of the filter device is monitored to obtain the real-time small particle size yield; based on the real-time pressure difference, the preset optimal pressure difference, the preset optimal small particle size yield and the real-time small particle size The air valve opening adjustment amount is calculated according to the real-time pressure difference and the preset optimal pressure difference, the small particle rate air valve opening adjustment amount is calculated according to the preset optimal small particle rate and the real-time small particle rate, and then the difference between the product of the pressure difference air valve opening adjustment amount and the preset first coefficient and the product of the small particle rate air valve opening adjustment amount and the preset second weighted coefficient is calculated to obtain the air valve opening adjustment amount; the air valve opening is adjusted to the latest air valve opening in real time according to the air valve opening adjustment amount.

[0007] In the above embodiment, by real-time monitoring of the pressure difference of the filter device and adjusting the air valve opening accordingly, the system can respond to abnormal pressure in a timely manner to ensure the stability of the air pressure in the filter device and the normal transportation of materials; when the pressure difference does not reach the warning threshold, the particle size distribution is monitored, and the air valve opening adjustment amount is calculated in combination with multiple parameters, so that the air valve can be accurately controlled, which not only ensures that the pressure difference is maintained within a reasonable range to stabilize the operation of the system, but also optimizes and adjusts according to the small particle size yield rate, thereby reducing the small particle size finished product loss rate of the calcium carbonate product.

[0008] In combination with some embodiments of the first aspect, in some embodiments, after the calcium carbonate grinder starts to run, the internal and external pressure values ​​of the filter device are monitored in real time by a pressure sensor, and after the internal pressure value, the external pressure value and the internal and external pressure difference are obtained, the method further includes: At preset time intervals, the internal pressure value is recorded at the end of each preset time interval; after recording the latest internal pressure value, the latest internal pressure value change rate is calculated; when the latest internal pressure value change rate exceeds the preset internal pressure value change rate range threshold, the amplitude of the vibration motor of the raw material bin is adjusted according to the latest amplitude adjustment rate.

[0009] In the above embodiment, by real-time monitoring of the internal pressure and calculating its rate of change, the system can keenly capture the dynamic change trend of the pressure. When the rate of change of the internal pressure value exceeds the preset range, the amplitude adjustment rate is determined based on the rate of change and the preset coefficient, and the amplitude of the vibration motor is adjusted, so as to accurately control the speed at which the raw materials enter the main machine, thereby ensuring the continuity and coordination of the work of each link of the calcium carbonate grinder and the smooth and efficient operation of the entire grinding process.

[0010] In combination with some embodiments of the first aspect, in some embodiments, when the latest internal pressure value change rate exceeds the preset internal pressure value change rate range threshold, after adjusting the amplitude of the vibration motor of the raw material bin according to the latest amplitude adjustment rate, the method further includes: The raw material discharge flow value of the raw material bin and the real-time powder flow at the inlet of the filter device are monitored in real time, and the raw material yield rate is calculated through the real-time powder flow value and the raw material discharge flow value; when the raw material yield rate is lower than the preset minimum raw material yield rate threshold, the calcium carbonate grinder is controlled to extend the grinding time.

[0011] In the above embodiment, the raw material yield rate is calculated by real-time monitoring of the raw material feed flow rate value and the real-time powder flow rate value at the outlet of the filter device, so that the production efficiency of the grinder can be accurately grasped. When the raw material yield rate is lower than the preset threshold, the grinder is controlled to extend the grinding time to ensure that more raw materials are fully ground into qualified products, thereby effectively improving the utilization rate of calcium carbonate raw materials, reducing raw material waste, and improving the economy of the entire grinding process and the quality of finished product output.

[0012] In combination with some embodiments of the first aspect, in some embodiments, when the internal and external pressure difference reaches a preset pressure difference warning threshold, the wind speed in the filter device is increased by adjusting the opening of the air valve, specifically including: When the internal and external pressure difference reaches the preset pressure difference warning threshold, determine whether the internal pressure value is greater than the external pressure value; when the internal pressure value is greater than the external pressure value, increase the opening of the air valve to increase the wind speed of the filter device; when the internal pressure value is not greater than the external pressure value, reduce the opening of the air valve to reduce the wind speed of the filter device.

[0013] In the above embodiment, the air valve opening is adjusted by judging the pressure difference between the inside and outside of the filter device and the relationship between the internal pressure and the external pressure, so that the system can accurately control the wind speed of the filter device according to the specific pressure conditions. When the internal pressure is too high, increasing the wind speed can quickly balance the pressure difference and prevent equipment damage or material abnormalities caused by excessive pressure; when the internal pressure is not high, reducing the wind speed can avoid excessive suction, ensure the stable sedimentation and normal collection of the material in the filter device, and maintain the stable operation of the entire grinder system.

[0014] In combination with some embodiments of the first aspect, in some embodiments, according to the real-time pressure difference, the preset optimal pressure difference, the preset optimal small particle yield rate and the real-time small particle yield rate, the air valve opening adjustment amount is calculated, specifically including: according to the real-time pressure difference, the preset optimal pressure difference, the preset proportional coefficient, the preset integral coefficient, the preset differential coefficient, the pressure deviation value, the real-time small particle yield rate, the preset optimal small particle yield rate, the first weighting coefficient, the second weighting coefficient and the first formula, the air valve opening adjustment amount is calculated; wherein the first formula is: Among them, u(t) is the air valve opening adjustment, w1 is the first weighting coefficient, w2 is the second weighting coefficient, and the pressure difference air valve opening adjustment K p is the preset proportionality factor, K i is the preset integral coefficient, K d is the preset differential coefficient, the pressure deviation value e(t)=F1-F2|, F1 is the preset optimal pressure difference, F2 is the real-time pressure difference, the small particle size rate air valve opening adjustment amount u2(t)=R-R1, R is the real-time small particle size yield rate, and R1 is the preset optimal small particle size yield rate.

[0015] In the above embodiment, by comprehensively considering the real-time pressure difference and the preset optimal pressure difference, the real-time small particle size yield rate and the preset optimal small particle size yield rate, the air valve opening adjustment amount is accurately calculated, so that the air valve adjustment can take into account both pressure control and finished product particle size quality control, and the influence of different factors is weighted and integrated according to the preset coefficient, so that the air valve opening adjustment is more scientific and reasonable, effectively maintaining the system pressure stability while reducing the small particle size finished calcium carbonate product loss rate.

[0016] In combination with some embodiments of the first aspect, in some embodiments, after the air valve opening is adjusted in real time to the latest air valve opening according to the air valve opening adjustment amount, the method further includes: The internal humidity of the calcium carbonate grinder is detected in real time to obtain a real-time humidity value; when the real-time humidity value is greater than a preset maximum humidity value threshold, the latest air valve opening is adjusted according to the high humidity air valve opening adjustment amount; the high humidity air valve opening adjustment amount is the difference between the real-time humidity value and the preset maximum humidity value threshold.

[0017] In the above embodiment, by real-time monitoring of the internal humidity of the calcium carbonate grinder and comparing it with a preset threshold, when the humidity exceeds the limit, the high humidity air valve opening adjustment amount is determined according to the humidity difference to adjust the air valve opening, so that the system can be regulated in time according to the humidity conditions. This can effectively prevent problems such as material adhesion caused by excessive humidity and ensure the smooth progress of the calcium carbonate grinding process.

[0018] In combination with some embodiments of the first aspect, in some embodiments, after the air valve opening is adjusted in real time according to the air valve opening adjustment amount to the latest air valve opening, the method further includes: After detecting that the user issues a stop operation instruction to the calcium carbonate grinder, the vibration motor of the raw material bin is controlled to stop vibrating; after detecting that the discharge port stops discharging, the speed of the calcium carbonate grinder is reduced until it stops, and the opening of the air valve is reduced until it is closed.

[0019] In the above embodiment, after the stop operation is detected, the vibration motor of the raw material bin is first controlled to stop vibrating to prevent the raw materials from continuing to enter the grinder and causing waste or blockage; after the discharge of the material at the discharge port stops, the speed of the calcium carbonate grinder and the opening of the air valve are gradually reduced until they are completely stopped and closed, so that the grinder can stop running smoothly and orderly, reducing the wear and impact caused by the emergency stop of the equipment, extending the service life of the equipment, and ensuring that the material processing in the system is completed.

[0020] In a second aspect, an embodiment of the present application provides a calcium carbonate grinder, which includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to make the calcium carbonate grinder perform the method described in the first aspect and any possible implementation method of the first aspect.

[0021] In a third aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when the computer program product is run on a calcium carbonate grinder, enables the calcium carbonate grinder to perform the method described in the first aspect and any possible implementation of the first aspect.

[0022] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, comprising instructions. When the instructions are executed on a calcium carbonate grinder, the calcium carbonate grinder executes the method described in the first aspect and any possible implementation of the first aspect.

[0023] It is understandable that the calcium carbonate grinding machine provided in the second aspect, the computer program product provided in the third aspect, and the computer storage medium provided in the fourth aspect are all used to execute the calcium carbonate grinding control method provided in the embodiment of the present application. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be repeated here.

[0024] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. The present application monitors the pressure difference of the filter device in real time and adjusts the air valve opening accordingly, so that the system can respond to abnormal pressure in time to ensure the stability of the air pressure in the filter device and the normal transportation of materials; when the pressure difference does not reach the warning threshold, the particle size distribution is monitored, and the air valve opening adjustment amount is calculated based on multiple parameters, so that the air valve can be accurately controlled, which not only ensures that the pressure difference is maintained within a reasonable range to stabilize the operation of the system, but also optimizes and adjusts according to the small particle size finished product rate, thereby reducing the small particle size finished product loss rate of the calcium carbonate finished product.

[0025] 2. This application comprehensively considers the real-time pressure difference and the preset optimal pressure difference, the real-time small particle size yield rate and the preset optimal small particle size yield rate, and accurately calculates the air valve opening adjustment amount, so that the air valve adjustment can take into account both pressure control and finished product particle size quality control. The influence of different factors is weighted and integrated according to the preset coefficient, making the air valve opening adjustment more scientific and reasonable, effectively maintaining the system pressure stability while reducing the small particle size finished product loss rate of calcium carbonate products.

[0026] 3. This application controls the vibration motor of the raw material bin to stop vibrating after detecting the stop operation instruction issued by the user, so as to prevent the raw materials from continuing to enter the grinder and causing waste or blockage; after the discharge of materials stops at the discharge port, the speed of the calcium carbonate grinder and the opening of the air valve are gradually reduced until they are completely stopped and closed, so that the grinder can stop running smoothly and orderly, reducing the wear and impact caused by the emergency stop of the equipment, extending the service life of the equipment, and ensuring that the materials in the system are processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of an exemplary application scenario of the calcium carbonate grinding control method in the embodiment of the present application; Figure 2 This is a flow chart of the calcium carbonate grinding control method in the embodiment of the present application; Figure 3 is another flow chart of the calcium carbonate grinding control method in the embodiment of the present application; Figure 4 It is a schematic diagram of an exemplary hardware structure of a calcium carbonate grinder in an embodiment of the present application. DETAILED DESCRIPTION

[0028] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context. It should also be understood that the term "and / or" used in the present application refers to and includes any or all possible combinations of one or more listed items.

[0029] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0030] Figure 1It is a schematic diagram of an exemplary application scenario of the calcium carbonate grinding control method in the embodiment of the present application.

[0031] See also Figure 1 The application scenario includes a raw material warehouse 110 , a main machine 120 , a filter 130 and a ventilator 140 .

[0032] The raw material bin 110 is the part for storing calcium carbonate raw materials, and is responsible for providing calcium carbonate raw materials after the calcium carbonate grinder starts to operate. Among them, the feeder 111 is used to store and control the output of raw materials; the vibration motor 112 generates vibration to make the raw materials enter the main machine at a predetermined flow rate, providing the material basis for the subsequent grinding process.

[0033] The main machine 120 is the core part of calcium carbonate grinding, which grinds the calcium carbonate raw materials and distinguishes qualified finished products. Among them, the grinding chamber 121 is used to grind the calcium carbonate raw materials entering from the raw material warehouse and crush them into fine particles; the classifier 122 can screen the ground raw materials according to the particle size, and separate qualified and unqualified finished products by means of centrifugal force, airflow and other working principles. The qualified finished products enter the filter, and the unqualified large-particle calcium carbonate raw materials remain in the main machine for further grinding.

[0034] The filter 130 is mainly used to filter and collect the ground calcium carbonate product. The bag structure 131 plays the role of separating solid particles and gas, which can block the calcium carbonate product and allow air to pass through. Under the continuous action of the airflow, the calcium carbonate product settles and is discharged through the discharger 132, thereby obtaining a pure calcium carbonate product.

[0035] Among them, the structure that plays the role of separating solid particles and gas can be but is not limited to a bag structure, filter paper, filter screen, etc. This structure can effectively block the calcium carbonate finished particles and allow air to pass through.

[0036] The ventilator 140 mainly provides airflow power for the entire system, the fan 142 generates airflow, and the air valve 141 is used to control the amount of air intake, thereby adjusting the wind speed in the system to ensure normal filtering work.

[0037] The following is a description of a calcium carbonate grinding control method in one embodiment of the present application: See also Figure 2 , is a flow chart of a calcium carbonate grinding control method provided in an embodiment of the present application, which can be applied to Figure 1 In the application scenario shown, the following steps are included: S201, after the calcium carbonate grinder starts to operate, the internal and external pressure values ​​of the filter device are monitored in real time by a pressure sensor to obtain the internal pressure value, the external pressure value and the internal and external pressure difference; It can be understood that the internal-external pressure difference is the difference between the external pressure value and the internal pressure value.

[0038] Pressure sensors are installed at corresponding positions inside and outside the filter device. During the operation of the calcium carbonate grinder, the sensors generate corresponding electrical signal changes according to the pressure, and these signals are transmitted to the calcium carbonate grinder control system. The control system processes and converts the signals through a specific algorithm to accurately obtain the internal and external pressure values ​​of the filter device, and further calculates the difference between the two, that is, the internal and external pressure difference.

[0039] By real-time monitoring of the internal and external pressure values ​​and pressure difference of the filter device, the system can timely and accurately grasp the airflow and material status in the filter device, which helps to detect abnormal pressure in advance, provide a basis for adjusting the air valve opening and other operations, ensure the stability and efficiency of the filtration process, and prevent problems such as material flying loss, increased equipment wear and poor filtration effect caused by pressure imbalance, thereby improving the overall operation reliability and product quality of the calcium carbonate grinder.

[0040] S202, detecting whether the real-time pressure difference reaches a preset pressure difference threshold; If the real-time internal and external pressure difference reaches the preset pressure difference warning threshold, the following step S203 is executed; If the real-time internal and external pressure difference does not reach the preset pressure difference warning threshold, the following step S204 is executed; It can be understood that the preset pressure difference warning threshold is the maximum internal and external pressure difference that the filtering device can reach when the calcium carbonate grinder is in normal operation. If the internal and external pressure values ​​of the calcium carbonate grinder reach the preset pressure difference warning threshold, it is judged that the operating state of the calcium carbonate grinder is abnormal, and the internal and external pressure difference needs to be adjusted in time to be less than the preset pressure difference warning threshold.

[0041] The internal and external pressure difference data continuously obtained by the pressure sensor is compared with the preset threshold value. When the pressure difference reaches the warning threshold value, the following step S203 is executed, and the control system increases the air valve opening according to the set strategy to increase the air intake to increase the wind speed; if the pressure difference does not reach the warning threshold value, the following step S204 is executed, and the air valve opening is adjusted again through subsequent steps.

[0042] By intelligently controlling the air valve according to the pressure difference, the equipment can automatically adjust the filtration wind speed when the pressure difference is too large, thus avoiding damage to the equipment due to abnormal pressure and ensuring stable operation of the system.

[0043] S203, increasing the wind speed in the filter device by adjusting the opening of the air valve; When the system determines that the wind speed in the filter device needs to be increased, it will send a control signal to the air valve. The air valve is usually driven by a motor or a pneumatic device. After receiving the signal, the motor rotates or the pneumatic device operates to increase the opening of the air valve, thereby reducing the resistance of the air valve to the airflow. When the airflow generated by the fan passes through the air valve, the flow rate increases, thereby increasing the wind speed entering the filter device.

[0044] By adjusting the air valve opening to increase the wind speed in the filter device, the air pressure distribution in the filter device is changed, which is conducive to more efficiently shaking off the calcium carbonate products adsorbed on the filter bags, preventing bag clogging and extending the service life of the bags. At the same time, it can also speed up the separation of air and finished products, improve the working efficiency of the filter device, and ensure the smooth operation of the overall production process of the calcium carbonate grinder.

[0045] S204, monitoring the particle size distribution at the inlet of the filtration device to obtain the real-time small particle size yield; It can be understood that the small particle size yield rate is the ratio of the number of small particle size calcium carbonate products whose particle size is smaller than a preset small particle size threshold to the total number of calcium carbonate products in the filtration device.

[0046] A particle size detection instrument is installed at the entrance of the filtration device. When the finished calcium carbonate product flows through here, the instrument emits laser to irradiate the particles. By detecting the intensity, angle and other information of the scattered light, the particles of different particle sizes are identified and counted according to specific algorithms and an established database. The ratio of small-particle calcium carbonate products with a particle size less than the preset small-particle size threshold to the total number of finished products is then calculated, i.e. the real-time small-particle size finished product rate.

[0047] In some embodiments of the present application, the particle size detection instrument can be a laser particle size analyzer. Based on the principle of light scattering, when a laser beam is irradiated to a particle group, a scattering phenomenon will occur. The size of the particles is different, and the intensity and angular distribution of the scattered light are also different. By measuring these characteristics of the scattered light, using an optical model, and after complex mathematical calculations and algorithm processing, the particle size distribution information of the particles can be obtained; in other embodiments of the present application, the particle size detection instrument can also be a screening method particle size detector, etc., using a series of sieves with different apertures, placing the particle sample on the top sieve, and moving the particles on the sieve by vibration or other mechanical means. Smaller particles will fall through the sieve holes, while larger particles will remain on the sieve. By analyzing the weight or number of the remaining particles on each sieve, the particle size distribution of the particles can be determined, which is not limited here.

[0048] By monitoring the particle size distribution at the inlet of the filter device, the real-time small particle size yield rate can be obtained, so that the proportion of small particle size products in the calcium carbonate products can be timely understood. When adjusting the wind speed inside the calcium carbonate grinder, the small particle size yield rate can be adjusted together to reduce the small particle size loss rate of the calcium carbonate products.

[0049] S205, calculating the air valve opening adjustment amount according to the real-time pressure difference, the preset optimal pressure difference, the preset optimal small-particle yield rate and the real-time small-particle yield rate; Specifically, the air valve opening adjustment amount is calculated by calculating the pressure difference air valve opening adjustment amount based on the real-time pressure difference and the preset optimal pressure difference, calculating the small particle size rate air valve opening adjustment amount based on the preset optimal small particle size yield rate and the real-time small particle size yield rate, and then using the product of the pressure difference air valve opening adjustment amount and the preset first coefficient and the product of the small particle size rate air valve opening adjustment amount and the preset second weighted coefficient as the difference to obtain the air valve opening adjustment amount.

[0050] By comprehensively calculating the air valve opening adjustment amount through multiple parameters, the air valve adjustment can take into account both system pressure stability and product quality optimization, avoid the one-sidedness caused by pressure factor adjustment alone, avoid the loss or inability to collect small particle size finished products during the wind speed adjustment process, accurately control the wind speed, improve the operating stability of the calcium carbonate grinder, improve product quality and production efficiency, and adapt to different working conditions.

[0051] S206. Adjust the air valve opening to the latest air valve opening in real time according to the air valve opening adjustment amount.

[0052] The control system receives the calculated air valve opening adjustment data and converts it into an electrical signal command. If it is an electric air valve, the command drives the motor to rotate forward or reverse, and accurately changes the rotation angle of the air valve blades through the transmission device to adjust the opening; if it is a pneumatic air valve, the pneumatic actuator is controlled to adjust the air pressure to drive the air valve components to move, thereby setting the air valve opening to the latest calculated value.

[0053] By adjusting the air valve opening in real time according to the calculation results, the air flow velocity in the filter device can be quickly adapted to the production process requirements. It effectively ensures that the pressure is stable within a reasonable range, prevents the grinding and filtering effects from being affected by pressure fluctuations, and at the same time can reduce material waste according to the small particle size yield rate, and improve the accuracy, efficiency and stability of the overall operation of the calcium carbonate grinder.

[0054] In the above embodiment, by real-time monitoring of the pressure difference of the filter device and adjusting the air valve opening accordingly, the system can respond to pressure abnormalities in a timely manner to ensure the stability of the air pressure in the filter device and the normal transportation of materials; when the pressure difference does not reach the warning threshold, the particle size distribution is monitored, and the air valve opening adjustment amount is calculated in combination with multiple parameters, so that the air valve can be accurately controlled, which not only ensures that the pressure difference is maintained within a reasonable range to stabilize the operation of the system, but also optimizes and adjusts according to the small particle size yield rate, thereby reducing the small particle size finished product loss rate of the calcium carbonate product.

[0055] In some embodiments, some special situations may be encountered during the calcium carbonate grinding control process. For example, when the humidity inside the calcium carbonate grinder is high, the finished calcium carbonate inside may clump and easily block the air outlet holes inside the filter device. In this case, the calcium carbonate grinding control method can adjust the air valve opening to adjust the wind speed according to the humidity inside the calcium carbonate grinder, thereby reducing the humidity. Figure 3 FIG. 1 is another flow chart of the sensor abnormality detection method provided in an embodiment of the present application, which can be used to Figure 1 In the application scenario shown, the following steps are included: S301, after the calcium carbonate grinder starts to operate, the internal and external pressure values ​​of the filter device are monitored in real time by a pressure sensor to obtain the internal pressure value, the external pressure value and the internal and external pressure difference; S302, recording the internal pressure value at the end of each preset time interval; A fixed time interval is pre-set, for example, every 5 minutes is an interval. When the calcium carbonate grinder is running, the timing device starts working. Every time a preset time interval ends, the data acquisition module connected to the pressure sensor will obtain the internal pressure value of the filter device measured by the pressure sensor at this time, and record it in a specific data storage area for subsequent call and analysis.

[0056] By recording the internal pressure value at preset time intervals, the pressure changes inside the filter device can be regularly monitored and data retained. This helps to analyze the pressure change trend over time, promptly detect abnormal pressure fluctuations, and provide early warning of possible equipment failures or process problems, thereby ensuring the stable operation of the calcium carbonate grinder.

[0057] S303, after recording the latest internal pressure value, calculating the latest internal pressure value change rate; It is understandable that after obtaining the latest internal pressure value, the internal pressure value recorded in the previous time interval is retrieved from the data storage area, the two are subtracted to obtain the pressure difference; then the difference is divided by the preset time interval to obtain the latest internal pressure value change rate.

[0058] By calculating the rate of change of the latest internal pressure value, the dynamic change characteristics of the pressure can be accurately quantified.

[0059] S304, when the latest internal pressure value change rate exceeds the preset internal pressure value change rate range threshold, adjusting the amplitude of the vibration motor of the raw material bin according to the latest amplitude adjustment rate; It can be understood that the latest amplitude adjustment rate is a multiple of the latest internal pressure value change rate and the preset amplitude adjustment proportional coefficient.

[0060] When the latest internal pressure value change rate exceeds the threshold, the system calculates the latest amplitude adjustment rate based on the preset amplitude adjustment proportional coefficient and the change rate, and then sends a command to the controller of the raw material warehouse vibration motor. The controller changes the output current or voltage according to this adjustment rate, thereby accurately adjusting the amplitude of the vibration motor and changing the raw material feeding speed.

[0061] By adjusting the amplitude of the vibration motor according to the pressure change rate, the amount of material discharged from the raw material bin can change dynamically according to the internal pressure of the grinder, which can avoid pressure imbalance caused by too much or too little material discharge, maintain stable operation of the system, prevent material blockage or equipment idling, improve the efficiency and quality of calcium carbonate grinding, extend the service life of the equipment, and reduce energy consumption and material loss.

[0062] S305, real-time monitoring of the raw material discharge flow value of the raw material warehouse, and calculating the raw material yield rate through the real-time powder flow value and the raw material discharge flow value; It can be understood that the raw material yield is the ratio of the real-time powder flow value to the raw material feed flow value.

[0063] Flow monitoring devices are respectively set at the discharge port of the raw material warehouse and the subsequent finished product collection point to obtain the real-time raw material discharge flow value and the real-time powder flow value formed after grinding. Through division operation, that is, the real-time powder flow value is divided by the raw material discharge flow value, the ratio of the two is obtained, and this ratio is the raw material finished product rate.

[0064] By calculating the raw material yield rate, the efficiency of converting raw materials into qualified finished products during the grinding process of calcium carbonate can be intuitively grasped, and it is convenient to timely discover possible problems in the grinding process, such as insufficient grinding or waste of raw materials, so as to optimize the grinding process in a targeted manner, improve the utilization rate of raw materials, reduce production costs, and ensure stable product quality. S306. When the raw material yield rate is lower than the preset minimum raw material yield rate threshold, control the calcium carbonate grinder to extend the grinding time; When the monitored raw material yield is lower than the preset threshold, the control system sends a command to the main unit of the calcium carbonate grinder to extend the operating time of the grinding components in the main unit based on the original settings. By changing the main unit's operating program or the parameter settings of control elements such as time relays, the grinding time can be extended, allowing the raw materials to receive more sufficient grinding action in the grinding chamber.

[0065] By extending the grinding time, the raw materials that are not fully ground have more opportunities to be refined, increasing the proportion of raw materials converted into qualified finished products, which helps to improve product quality, reduce raw material waste caused by low yield, and reduce production costs to a certain extent.

[0066] S307, detecting whether the real-time pressure difference reaches a preset pressure difference threshold; If the real-time internal and external pressure difference reaches the preset pressure difference warning threshold, the following step S308 is executed; If the real-time internal and external pressure difference does not reach the preset pressure difference warning threshold, the following step S311 is executed; S308, determining whether the internal pressure value is greater than the external pressure value; If the internal pressure value is greater than the external pressure value, the following step S309 is executed; If the internal pressure value is not greater than the external pressure value, the following step S310 is executed; The system obtains the internal and external pressure values ​​of the filter device through the pressure sensor and compares them. If the internal pressure is high, the following step S309 is executed to send a signal to the air valve actuator to increase the opening, so that more air can enter and the wind speed can be increased; if the internal pressure is not greater than the external pressure, the following step S310 is executed to send a signal to the air valve actuator to reduce the opening, reduce the air intake and thus reduce the wind speed, thereby achieving wind speed regulation.

[0067] By adjusting the air valve opening to change the wind speed according to the pressure difference, the air pressure balance in the filter device can be effectively controlled. This can prevent problems such as reduced filtration efficiency, material leakage or equipment damage caused by air pressure differences, ensure stable operation of the calcium carbonate grinder filtration process, improve the quality of finished products and production safety, and reduce equipment maintenance costs and failure risks.

[0068] S309, increasing the opening of the air valve to increase the wind speed of the filter device; When it is determined that the wind speed of the filter device needs to be increased, a command is sent to the air valve, and the electric or pneumatic drive device of the air valve is activated after receiving the command, so that the air valve opening is increased. When the air valve opening is increased, the resistance to the air flow generated by the ventilator is reduced, and more air can quickly pass through the air valve into the filter device, thereby increasing the wind speed in the filter device.

[0069] S310, reducing the opening of the air valve to reduce the wind speed of the filter device; When it is determined that the internal pressure value is not greater than the external pressure value and the wind speed of the filter device needs to be reduced, the control system will issue a command. This command is transmitted to the driving mechanism of the air valve. If it is an electric air valve, the motor reverses to drive the blades of the air valve to rotate, reducing the opening between the blades; if it is a pneumatic air valve, the air pressure is changed to make the regulating component of the air valve move, reducing the channel area, and the flow of air passing through the air valve will be reduced, thereby achieving the purpose of reducing the wind speed of the filter device.

[0070] S311, monitoring the particle size distribution at the inlet of the filtration device to obtain the real-time small particle size yield; S312, calculating the air valve opening adjustment amount according to the real-time pressure difference, the preset optimal pressure difference, the preset optimal small particle size yield rate, the real-time small particle size yield rate and the first formula; Specifically, the first formula is: Among them, u(t) is the air valve opening adjustment, w1 is the first weighting coefficient, w2 is the second weighting coefficient, and the pressure difference air valve opening adjustment K p is the preset proportionality factor, K i is the preset integral coefficient, K d is the preset differential coefficient, the pressure deviation value e(t) = |F1-F2|, F1 is the preset optimal pressure difference, F2 is the real-time pressure difference, the small particle rate air valve opening adjustment amount u2(t) = R-R1, R is the real-time small particle rate, and R1 is the preset optimal small particle rate.

[0071] In the first formula, the air valve opening adjustment amount is calculated Based on the calculation method of PID (Proportional-Integral-Differential) control strategy, the PID controller calculates the control amount according to the pressure difference deviation, the integral of the deviation and the differential of the deviation. Assume that the pressure difference setting value is F1, and the actual pressure difference (the difference between the internal pressure value and the external pressure value) is F2, then the pressure difference deviation e(t) = |F1-F2|. The proportional term directly calculates the adjustment amount according to the current deviation. The larger the deviation, the larger the adjustment amount; the integral term accumulates past deviations to eliminate the steady-state error of the system. Even if the deviation is very small, it can generate sufficient adjustment amount as time accumulates; the differential term considers the deviation change rate. When the pressure difference changes drastically, it responds quickly to make adjustments. Combined with the preset coefficient, these three terms are added to obtain the air valve opening adjustment amount.

[0072] By using the PID control strategy, the adjustment of the air valve opening is more accurate, timely and stable. The accuracy lies in the ability to dynamically adjust according to the pressure difference and changes to reduce overshoot. The timeliness is because the differential term can quickly respond to pressure mutations, and the stability is because the integral term eliminates steady-state errors. This can effectively maintain the pressure stability of the filter device, improve the working efficiency of the calcium carbonate grinder and the quality of the finished product, and reduce energy consumption and equipment wear.

[0073] Based on the above steps, the small particle rate air valve opening adjustment is calculated. The real-time small particle rate is R, and the preset optimal small particle rate is R1. The difference is used as the small particle rate air valve opening adjustment u2(t)=R-R1. The pressure difference air valve opening adjustment is multiplied by the preset first weighting coefficient w1, and the small particle rate air valve opening adjustment is multiplied by the preset second weighting coefficient w2. Finally, these two products are subtracted to comprehensively consider the pressure and small particle rate factors to obtain the final air valve opening adjustment.

[0074] By calculating the air valve opening adjustment amount in this way, the adjustment of the air valve can take into account both pressure balance and small particle size yield rate, taking into account both the pressure conditions in the system and the quality requirements of the product. In this way, the wind speed can be accurately controlled, effectively avoiding the situation where a large amount of small particle size finished products are lost when the wind speed needs to be increased and the situation where some small particle size finished products cannot be collected when the wind speed needs to be reduced, thereby reducing the small particle size finished product loss rate of the calcium carbonate finished product.

[0075] S313, adjusting the air valve opening to the latest air valve opening in real time according to the air valve opening adjustment amount.

[0076] S314, real-time detection of the internal humidity of the calcium carbonate grinder to obtain a real-time humidity value; When the grinder is running, the humidity sensor inside the calcium carbonate grinder comes into contact with the internal environment, and its internal sensitive elements will produce corresponding physical changes according to the changes in ambient humidity, such as capacitance changes or resistance changes. This physical change is then converted into an electrical signal through a matching circuit, and then processed through analog-to-digital conversion and other processing to finally obtain a real-time humidity value that can be read.

[0077] By detecting humidity in real time, the humidity inside the grinder can be understood in time. During the calcium carbonate grinding process, humidity may affect product quality, equipment operation and material performance. Timely grasping of humidity information can prevent problems such as material agglomeration and equipment rusting caused by abnormal humidity. If the humidity exceeds the normal range, corresponding measures can be taken, such as turning on dehumidification equipment or adjusting the ventilation system to ensure the stability of the internal environment of the grinder, thereby improving product quality and equipment life.

[0078] S315, when the real-time humidity value is greater than the preset maximum humidity value threshold, adjusting the latest air valve opening according to the high humidity air valve opening adjustment amount; It can be understood that the high humidity air valve opening adjustment amount is the difference between the real-time humidity value and the preset maximum humidity value threshold.

[0079] When it is detected that the real-time humidity value exceeds the preset maximum humidity value threshold, the system calculates the difference between the two as the high humidity air valve opening adjustment amount, and then based on this adjustment amount, controls the air valve drive device (such as a motor or pneumatic component) to change the air valve opening according to the adjustment amount, such as increasing the opening to speed up air circulation and reduce humidity.

[0080] By adjusting the air valve opening according to the humidity, the humidity inside the grinder can be effectively controlled, which can prevent problems such as calcium carbonate agglomeration and equipment corrosion caused by excessive humidity, ensure the smooth progress of the grinding process, improve product quality stability, extend equipment service life, and reduce production interruptions and material losses caused by humidity factors.

[0081] S316, after detecting that the user issues an instruction to stop the operation, controlling the vibration motor of the raw material bin to stop vibrating; When receiving a stop command from the user, a stop command is immediately sent to the control circuit of the vibration motor in the raw material bin. The control circuit cuts off the power supply of the vibration motor. The motor stops running due to loss of power and no longer generates vibration, thereby stopping the transportation of raw materials.

[0082] In some embodiments of the present application, the user may issue a stop command by clicking a stop button on the operation panel; in other embodiments of the present application, the user may issue a stop command by turning off the operating switch of the calcium carbonate grinder, etc., which is not limited here.

[0083] By stopping the vibration of the vibration motor when the machine is stopped, the raw material bin stops unloading, thus preventing raw materials from entering during the grinding machine's shutdown period.

[0084] S317. After detecting that the discharge port stops discharging material, the rotation speed of the calcium carbonate grinder is reduced until it stops, and at the same time, the opening of the air valve is reduced until it is closed.

[0085] When the sensor detects that the discharge port stops discharging, the control system sends signals to the motor and air valve of the calcium carbonate grinder. After receiving the signal, the motor gradually reduces the driving current or voltage, so that the speed of the grinder gradually decreases until it stops completely; the air valve gradually reduces the opening under the control signal until it is completely closed, cutting off the air flow channel.

[0086] The calcium carbonate grinder can be shut down smoothly after stopping discharging, avoiding problems such as material residue, equipment impact and air flow disturbance in the pipeline caused by sudden shutdown, reducing material waste, equipment wear and failure risks, and helping to extend the service life of the equipment, ensuring that the equipment can operate normally at the next startup, and improving the safety and stability of the production process.

[0087] Steps S301, S307, S311, S313 and Figure 2 Steps S201, S202, S204, and S206 in the illustrated embodiment are similar, and the descriptions of steps S201, S202, S204, and S206 may be referred to, and will not be repeated here.

[0088] In the above embodiment, the internal pressure value is recorded at preset time intervals and the rate of change is calculated. When the threshold value is exceeded, the amplitude of the vibration motor of the raw material bin is adjusted to maintain system stability; the raw material discharge flow value and the real-time powder flow value are monitored to calculate the raw material yield rate. When the yield rate is low, the grinding time is extended to improve product quality; the internal humidity is detected and the air valve opening is adjusted according to the humidity to avoid the influence of abnormal humidity; when the operation is stopped, the vibration motor, grinder and air valve are shut down reasonably to reduce material residue and equipment loss. The overall operation stability, product quality and equipment service life of the calcium carbonate grinder are improved. When the calcium carbonate grinder adjusts the wind speed, the air valve opening adjustment amount is calculated by taking into account multiple parameters such as the small particle size yield rate. In this process, the small particle size loss rate of the calcium carbonate product is reduced.

[0089] The following introduces an exemplary calcium carbonate grinder 400 provided in an embodiment of the present application. Figure 4 Schematic diagram of an exemplary hardware structure of the calcium carbonate grinder 400 provided in an embodiment of the present application.

[0090] In some embodiments, the calcium carbonate grinding machine 400 includes a computer device. The computer device includes a processor, a memory and a network interface connected by a system bus. Wherein, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store data. The network interface of the computer device is used to communicate with other external terminals or servers through a network connection. In some embodiments, the network interface can be a wired network interface, and in some embodiments, the network interface can also be a wireless network interface. When the computer program is executed by the processor, the method in the embodiment of the present application is implemented.

[0091] Those skilled in the art will understand that Figure 4 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0092] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0093] As used in the above embodiments, the term "when..." may be interpreted to mean "if..." or "after..." or "in response to determining..." or "in response to detecting...", depending on the context. Similarly, the phrases "upon determining..." or "if (the stated condition or event) is detected" may be interpreted to mean "if determining..." or "in response to determining..." or "upon detecting (the stated condition or event)" or "in response to detecting (the stated condition or event)", depending on the context.

[0094] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media integration. The available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk), etc.

[0095] Those skilled in the art can understand that to implement all or part of the processes in the above-mentioned embodiments, the processes can be completed by computer programs to instruct related hardware, and the programs can be stored in computer-readable storage media. When the programs are executed, they can include the processes of the above-mentioned method embodiments. The aforementioned storage media include: ROM or random access memory RAM, magnetic disk or optical disk and other media that can store program codes.

Claims

1. A calcium carbonate grinding control method, characterized in that, include: After the calcium carbonate grinder starts to operate, the internal and external pressure values ​​of the filter device are monitored in real time by the pressure sensor to obtain the internal pressure value, the external pressure value and the internal and external pressure difference; The internal-external pressure difference is the difference between the external pressure value and the internal pressure value; When the internal and external pressure difference reaches a preset pressure difference warning threshold, the wind speed in the filter device is increased by adjusting the opening of the air valve; When the internal and external pressure difference does not reach the preset pressure difference warning threshold, the particle size distribution at the inlet of the filter device is monitored to obtain a real-time small particle size yield rate; the small particle size yield rate is the ratio of the number of small particle size calcium carbonate products with a particle size smaller than the preset small particle size threshold in the filter device to the total number of calcium carbonate products in the filter device; The air valve opening adjustment amount is calculated according to the real-time pressure difference, the preset optimal pressure difference, the preset optimal small particle size yield rate and the real-time small particle size yield rate; the air valve opening adjustment amount is calculated by calculating the pressure difference air valve opening adjustment amount according to the real-time pressure difference and the preset optimal pressure difference, calculating the small particle size rate air valve opening adjustment amount according to the preset optimal small particle size yield rate and the real-time small particle size yield rate, and then calculating the difference between the product of the pressure difference air valve opening adjustment amount and the preset first coefficient and the product of the small particle size rate air valve opening adjustment amount and the preset second weighted coefficient to obtain the air valve opening adjustment amount; The air valve opening is adjusted in real time to the latest air valve opening according to the air valve opening adjustment amount.

2. The method according to claim 1, characterized in that After the calcium carbonate grinder starts to run, the pressure sensor is used to monitor the internal and external pressure values ​​of the filter device in real time, and after obtaining the internal pressure value, the external pressure value and the internal and external pressure difference, it also includes: At predetermined time intervals, recording the internal pressure value at the end of each predetermined time interval; After recording the latest internal pressure value, calculating the latest internal pressure value change rate; the latest internal pressure value change rate is the ratio of the difference between the previous internal pressure value and the latest internal pressure value for a preset time interval between the latest internal pressure value and the preset time interval; When the latest internal pressure value change rate exceeds the preset internal pressure value change rate range threshold, the amplitude of the vibration motor of the raw material bin is adjusted according to the latest amplitude adjustment rate; the latest amplitude adjustment rate is a multiple of the latest internal pressure value change rate and the preset amplitude adjustment proportional coefficient.

3. The method according to claim 2, characterized in that When the latest internal pressure value change rate exceeds the preset internal pressure value change rate range threshold, after adjusting the amplitude of the vibration motor of the raw material bin according to the latest amplitude adjustment rate, the method further includes: Real-time monitoring of the raw material discharge flow value of the raw material bin and the real-time powder flow rate at the inlet of the filtering device, and calculating the raw material yield rate through the real-time powder flow rate value and the raw material discharge flow rate value; the raw material yield rate is the ratio of the real-time powder flow rate value to the raw material discharge flow rate value; When the raw material yield rate is lower than a preset minimum raw material yield rate threshold, the calcium carbonate grinder is controlled to extend the grinding time.

4. The method according to claim 1, characterized in that: When the internal and external pressure difference reaches a preset pressure difference warning threshold, the wind speed in the filter device is increased by adjusting the opening of the air valve, which specifically includes: When the internal and external pressure difference reaches a preset pressure difference warning threshold, determining whether the internal pressure value is greater than the external pressure value; When the internal pressure value is greater than the external pressure value, the wind speed of the filter device is increased by increasing the opening of the air valve; When the internal pressure value is not greater than the external pressure value, the wind speed of the filter device is reduced by reducing the opening of the air valve.

5. The method according to claim 1, characterized in that The calculating of the air valve opening adjustment amount according to the real-time pressure difference, the preset optimal pressure difference, the preset optimal small particle size yield rate and the real-time small particle size yield rate specifically includes: Calculate the air valve opening adjustment amount according to the real-time pressure difference, the preset optimal pressure difference, the preset proportional coefficient, the preset integral coefficient, the preset differential coefficient, the pressure deviation value, the real-time small particle yield rate, the preset optimal small particle yield rate, the first weighting coefficient, the second weighting coefficient and the first formula; Among them, the first formula is: Among them, u(t) is the air valve opening adjustment amount, w1 is the first weighting coefficient, w2 is the second weighting coefficient, and the pressure difference air valve opening adjustment amount K p is the preset proportionality coefficient, K i is the preset integral coefficient, K d is the preset differential coefficient, the pressure deviation value e(t)=F1-F 2| , F1 is the preset optimal pressure difference, F2 is the real-time pressure difference, the small particle size rate air valve opening adjustment amount u2(t)=R-R1, R is the real-time small particle size yield rate, and R1 is the preset optimal small particle size yield rate.

6. The method according to claim 1, characterized in that After the air valve opening is adjusted in real time to the latest air valve opening according to the air valve opening adjustment amount, the method further includes: Real-time detection of the internal humidity of the calcium carbonate grinder to obtain a real-time humidity value; When the real-time humidity value is greater than the preset maximum humidity value threshold, the latest air valve opening is adjusted according to the high humidity air valve opening adjustment amount; the high humidity air valve opening adjustment amount is the difference between the real-time humidity value and the preset maximum humidity value threshold.

7. The method according to claim 1, characterized in that After the air valve opening is adjusted in real time to the latest air valve opening according to the air valve opening adjustment amount, the method further includes: After detecting that the user issues an instruction to stop the operation of the calcium carbonate grinder, controlling the vibration motor of the raw material bin to stop vibrating; After it is detected that the discharge port stops discharging material, the rotation speed of the calcium carbonate grinder is reduced until it stops, and the opening of the air valve is reduced until it is closed.

8. A calcium carbonate grinding machine, characterized in that: The calcium carbonate grinder comprises: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code comprises computer instructions, and the one or more processors call the computer instructions so that the calcium carbonate grinder control system executes the method as described in any one of claims 1-7.

9. A computer program product comprising instructions, characterized in that When the computer program product is run on a calcium carbonate grinder control system, the calcium carbonate grinder control system is caused to perform the method according to any one of claims 1 to 7.

10. A computer-readable storage medium comprising instructions, characterized in that: When the instruction is executed on a calcium carbonate grinder control system, the calcium carbonate grinder control system is caused to execute the method according to any one of claims 1 to 7.

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