In-mill precise air using device based on multi-dimensional parameter feedback

By introducing a multi-dimensional parameter feedback and closed-loop control system into the cement mill, the air volume inside the mill is collected in real time and dynamically adjusted, solving the problems of uncertainty and inefficiency of traditional manual control, and realizing precise adjustment of air volume and improvement of production efficiency.

CN224366345UActive Publication Date: 2026-06-16HUAIBEI MINING XIANGSHAN CEMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAIBEI MINING XIANGSHAN CEMENT CO LTD
Filing Date
2025-06-26
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

During the production process of cement mills, insufficient monitoring data of operating parameters, especially changes in air volume, leads to reduced production output and energy waste. The existing system relies on manual control for air adjustment, which is uncertain and inefficient.

Method used

The mill uses a precision air supply device based on multi-dimensional parameter feedback, which includes a sensor module, a control unit, an actuator, and a feedback loop. It collects multi-dimensional parameters inside the mill in real time, generates air volume adjustment commands through a preset algorithm, dynamically adjusts the air volume inside the mill, and forms a closed-loop control.

🎯Benefits of technology

It enables precise control of the internal airflow of the mill, improves production efficiency, reduces energy waste, and optimizes product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides an in-mill precise air supply device based on multi-dimensional parameter feedback, and relates to the field of cement processing.The device comprises a sensor module, a control unit, an actuator and a feedback loop, wherein the sensor module, the actuator and the feedback loop are electrically connected with the control unit.The device realizes precise adjustment of the air volume in the mill by collecting multi-dimensional parameters in real time and combining intelligent algorithms and automatic actuators, thereby solving the problems of inaccurate air volume control and imperfect feedback mechanism in the prior art, and having the advantages of real-time and precise adjustment of the air volume in the mill, improved production efficiency, reduced energy consumption and optimized product quality.
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Description

Technical Field

[0001] This application relates to the field of cement processing, and more specifically, to a mill-based precision air supply device based on multi-dimensional parameter feedback. Background Technology

[0002] During the production and operation of cement mills, the lack of operational monitoring parameters, especially changes in air volume, can easily lead to a decrease in production output, affecting the increase in hourly output and the reduction of process power consumption, resulting in energy waste. Currently, in terms of production technology, the system air supply adjustment is basically controlled by manual louvered valves. There is a lot of uncertainty in the system air supply and the opening degree of each damper. Most of the time, the opening degree is judged by visual inspection, making it difficult to determine whether the production fluctuation is caused by air supply, which restricts production judgment and analysis. Summary of the Invention

[0003] The purpose of this application is to provide a mill-based precision air supply device based on multi-dimensional parameter feedback, which can solve the above-mentioned technical problems.

[0004] This application provides a mill-based precision airflow device based on multi-dimensional parameter feedback, comprising a sensor module, a control unit, an actuator, and a feedback loop. The sensor module is used to collect multi-dimensional parameters inside the mill in real time, including temperature, pressure, material humidity, airflow velocity, and particle size parameters. The control unit is communicatively connected to the sensor module and is used to receive and process the multi-dimensional parameter data, generating airflow adjustment commands through a preset algorithm. The actuator, connected to the control unit, includes a variable frequency fan and an air duct regulating valve, and is used to dynamically adjust the airflow inside the mill according to the airflow adjustment commands. The feedback loop feeds back the parameters adjusted by the actuator to the control unit, forming a closed-loop control. The sensor module, the actuator, and the feedback loop are all electrically connected to the control unit.

[0005] Preferably, the sensor module includes a pressure sensor, a humidity sensor, a laser particle size analyzer, and multiple temperature sensors.

[0006] Preferably, the control unit includes a data preprocessing module, a weight allocation module, and a decision module.

[0007] Preferably, the actuator includes an adjustable guide vane, adjustable louvers, and a variable frequency fan.

[0008] Preferably, the adjustable guide vane adopts a multi-segment airfoil structure, with each segment independently equipped with a drive motor.

[0009] Preferably, the decision-making module is a PLC module or a microcontroller module.

[0010] The beneficial effects of this utility model are:

[0011] This utility model provides a mill-based precision airflow device based on multi-dimensional parameter feedback, comprising a sensor module, a control unit, an actuator, and a feedback loop. The sensor module is used to collect multi-dimensional parameters inside the mill in real time, including temperature, pressure, material humidity, airflow velocity, and particle size parameters. The control unit, communicatively connected to the sensor module, receives and processes the multi-dimensional parameter data, generating airflow adjustment commands through a preset algorithm. The actuator, connected to the control unit, includes a variable frequency fan and an air duct regulating valve, used to dynamically adjust the airflow inside the mill according to the airflow adjustment commands. The feedback loop feeds back the adjusted parameters from the actuator to the control unit, forming a closed-loop control. The sensor module, the actuator, and the feedback loop are all electrically connected to the control unit. This device, by collecting multi-dimensional parameters in real time, combined with intelligent algorithms and automated actuators, achieves precise adjustment of the airflow inside the mill, thus solving problems such as inaccurate airflow control and imperfect feedback mechanisms in existing technologies. It has the advantages of real-time precise adjustment of mill airflow, improved production efficiency, reduced energy consumption, and optimized product quality. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a structural framework diagram of the present invention.

[0014] The reference numerals in the attached figures are as follows:

[0015] 1. Sensor module; 2. Control unit; 3. Actuator; 4. Feedback loop; 5. Pressure sensor; 6. Humidity sensor; 7. Laser particle size analyzer; 8. Temperature sensor; 9. Data preprocessing module; 10. Weight allocation module; 11. Decision module; 12. Adjustable guide vane; 13. Adjustable louvers; 14. Variable frequency fan. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] like Figure 1As shown, this invention proposes a mill-based precision airflow control device based on multi-dimensional parameter feedback, aiming to solve the problem of inaccurate airflow control inside the mill. The device includes a sensor module, a control unit, an actuator, and a feedback loop. The sensor module is used to collect multi-dimensional parameters inside the mill in real time, including temperature, pressure, material humidity, airflow velocity, and particle size parameters. The control unit is communicatively connected to the sensor module and is used to receive and process the multi-dimensional parameter data, generating airflow adjustment commands through a preset algorithm. The actuator, connected to the control unit, includes a variable frequency fan and an air duct regulating valve, and is used to dynamically adjust the airflow inside the mill according to the airflow adjustment commands. The feedback loop feeds back the parameters adjusted by the actuator to the control unit, forming a closed-loop control. The sensor module, actuator, and feedback loop are all electrically connected to the control unit.

[0023] This device collects multi-dimensional parameters inside the mill in real time via sensor modules, including temperature, pressure, material humidity, airflow velocity, and particle size. This data is transmitted to the control unit. The control unit processes this data using a preset algorithm and generates airflow adjustment commands. The actuators dynamically adjust the airflow inside the mill according to these commands, specifically adjusting the variable frequency fan and the air duct regulating valves. The feedback loop feeds the adjusted parameters back to the control unit, forming a closed-loop control system. In this way, precise control of the airflow inside the mill can be achieved, improving production efficiency, reducing energy waste, and overcoming the uncertainty and inefficiency of traditional manual airflow adjustment.

[0024] In the production process of cement mills, insufficient monitoring data, especially regarding airflow changes, often leads to reduced production efficiency and energy waste. To overcome these problems, this invention proposes a precision airflow control device for the mill based on multi-dimensional parameter feedback. Multi-dimensional parameter data is collected in real time by a sensor module and transmitted to the control unit. The control unit generates airflow adjustment commands using a preset algorithm, and the actuator dynamically adjusts the airflow according to these commands. The feedback loop feeds the adjusted parameters back to the control unit, forming a closed-loop control system. This achieves precise control of the airflow inside the mill, improving production efficiency and reducing energy waste.

[0025] The sensor module is used to collect multi-dimensional parameters inside the mill in real time, including temperature, pressure, material humidity, airflow velocity, and particle size. The control unit receives and processes this data, generating airflow adjustment commands through a preset algorithm. The actuators, including a variable frequency fan and an air duct regulating valve, are used to dynamically adjust the airflow inside the mill according to the airflow adjustment commands. The feedback loop feeds the adjusted parameters from the actuators back to the control unit, forming a closed-loop control system.

[0026] For example, the sensor module may include multiple temperature sensors, pressure sensors, humidity sensors, laser particle size analyzers, etc., for comprehensive monitoring of the mill's internal operating status. The control unit may include a data preprocessing module, a weight allocation module, and a decision module, used for data preprocessing, weight allocation of different parameters, and final decision generation, respectively. The actuator may include a variable frequency fan, duct regulating valve, etc., to dynamically adjust the airflow. The feedback loop is used to feed the adjusted parameters back to the control unit, forming a closed-loop control.

[0027] Compared with existing technologies, this invention achieves precise control of the internal air volume of the mill by introducing a multi-dimensional parameter feedback and closed-loop control system, overcoming the uncertainty and inefficiency of traditional manual air volume adjustment, improving production efficiency and reducing energy waste.

[0028] like Figure 1 As shown, multi-dimensional parameter data inside the mill is collected in real time through sensor modules, including temperature sensors, pressure sensors, humidity sensors, and a laser particle size analyzer. The control unit receives this data and processes it using a preset algorithm to generate airflow adjustment commands. The actuators dynamically adjust the airflow inside the mill according to these commands, specifically by adjusting the variable frequency fan and the air duct regulating valves. The feedback loop feeds the adjusted parameters back to the control unit, forming a closed-loop control system. In this way, precise control of the airflow inside the mill is achieved, improving production efficiency and reducing energy waste.

[0029] like Figure 1 As shown, this application also proposes that the sensor module includes a pressure sensor, a humidity sensor, a laser particle size analyzer, and multiple temperature sensors.

[0030] The sensor module, comprising a pressure sensor, humidity sensor, laser particle size analyzer, and multiple temperature sensors, enables real-time acquisition of multi-dimensional parameters within the mill. Each sensor collects different parameters: the pressure sensor detects the internal pressure of the mill, the humidity sensor detects the humidity of the material, the laser particle size analyzer detects particle size, and the multiple temperature sensors detect temperature at different locations. These sensors work together to ensure comprehensive and accurate acquisition of multi-dimensional parameters, providing a reliable data foundation for the control unit and solving the problem of real-time acquisition of multi-dimensional parameters in the mill's precision airflow system.

[0031] Specifically, the pressure sensor can be a high-precision MEMS sensor, the humidity sensor can be a capacitive humidity sensor, the laser particle size analyzer can use laser diffraction for particle size analysis, and the temperature sensor can be a thermocouple or a resistance temperature detector (RTD). In this embodiment, these sensors can transmit data to the control unit via a wireless transmission module, improving system flexibility and ease of installation. The sensor installation locations should be optimized based on the mill's structure and key parameter acquisition points to ensure data accuracy and representativeness.

[0032] By employing the aforementioned sensor modules, this application enables real-time acquisition and monitoring of multi-dimensional parameters such as temperature, pressure, humidity, and particle size within the mill. This allows for timely reflection of the mill's internal operating status, providing comprehensive and accurate data support to the control unit. Furthermore, the control unit's algorithm processing enables precise adjustment of the mill's internal airflow. Compared to existing technologies, this application significantly improves the mill's production efficiency and energy utilization, reducing production fluctuations and energy waste caused by insufficient parameter monitoring.

[0033] like Figure 1 As shown in this embodiment, the control unit includes a data preprocessing module, a weight allocation module, and a decision module.

[0034] The control unit performs preliminary processing on the collected multidimensional parameter data through a data preprocessing module. This module filters out noise and outliers, ensuring data accuracy. A weight allocation module assigns weights based on the importance of different parameters, ensuring the rationality of the decision-making process. The decision-making module then makes airflow adjustment decisions based on the preprocessed data and the assigned weights, thereby achieving precise control of the airflow within the mill.

[0035] The data preprocessing module can be implemented in various ways, such as using filtering algorithms to remove noisy data or using statistical methods to identify and remove outliers. The weight allocation module can dynamically adjust the weights of each parameter based on preset rules or through machine learning models. The decision-making module can use a PLC module or a microcontroller module to generate airflow adjustment commands through preset algorithms or control logic.

[0036] The control unit of this application, by introducing a data preprocessing module, a weight allocation module, and a decision-making module, can effectively improve the accuracy of data processing and the rationality of decision-making. Compared with the prior art, this application can more accurately control the air volume inside the mill, reduce production fluctuations caused by air volume changes, improve production efficiency, and reduce energy consumption. Therefore, this application has significant technical advantages in mill multi-dimensional parameter data processing and decision-making.

[0037] like Figure 1 As shown in this embodiment, the actuator includes an adjustable guide vane, adjustable louvers, and a variable frequency fan.

[0038] The technical solution presented in this application plays a crucial role in addressing the issue of precise airflow regulation within the mill. Adjustable guide vanes and adjustable louvers precisely control the direction and volume of airflow by adjusting their position and angle, thereby achieving precise airflow regulation within the mill. The variable frequency fan controls the airflow by adjusting its rotational speed. These technical features work together to enable the system to dynamically adjust the airflow based on multi-dimensional parameters within the mill, ensuring optimal mill operation, improving production efficiency, and reducing energy waste.

[0039] Adjustable deflectors can employ a multi-segment airfoil structure, with each segment independently equipped with a drive motor, thereby achieving precise airflow control. Adjustable louvers can be adjusted via electric or pneumatic drives for more flexible control of airflow direction and volume. Variable frequency fans can control the fan speed through a frequency converter, providing more precise airflow regulation. These technologies can be used individually or in combination to meet the airflow regulation needs under different operating conditions.

[0040] This application achieves precise adjustment of airflow within the mill by employing adjustable guide vanes, adjustable louvers, and a variable frequency fan. Compared to existing technologies, this application can automatically and accurately adjust the airflow, avoiding production fluctuations caused by inaccurate manual adjustments and improving production stability and efficiency. Therefore, this application not only improves the automation level of the mill production process but also effectively reduces energy waste, resulting in significant economic and environmental benefits.

[0041] like Figure 1 As shown in this embodiment, the adjustable guide vane adopts a multi-segment airfoil structure, with each segment independently equipped with a drive motor.

[0042] The multi-segment airfoil structure of the adjustable air deflector can be precisely controlled by multiple independent drive motors, ensuring that the angle and position of each air deflector segment can be adjusted individually. This design makes airflow regulation more precise, allowing adjustments to be made according to the needs of different locations within the mill, thereby improving the accuracy and response speed of airflow control.

[0043] This technical solution solves the problem of precise airflow control caused by traditional single airflow deflectors by employing a multi-segment airfoil structure with each segment independently equipped with a drive motor. The independent adjustment function of each airflow deflector segment allows the entire system to respond more flexibly to the airflow requirements of different areas within the mill, achieving higher control precision and efficiency, improving overall production performance, and reducing energy waste.

[0044] The multi-segment airfoil adjustable deflector can be implemented in various ways. For example, each segment of the deflector can be driven by a servo motor, thereby achieving precise angle control. Each servo motor can receive commands from a control unit and independently adjust the angle of the deflector. Additionally, the deflector can be made of lightweight, high-strength materials to reduce the load on the drive motor and improve response speed and control accuracy. As a preferred embodiment, the airfoil structure of the deflector can be optimized according to airflow characteristics to ensure optimal airflow guidance under different airflow conditions.

[0045] Through this design, the adjustable guide vane with a multi-segment airfoil structure in this application can significantly improve the accuracy and flexibility of airflow regulation within the mill. Compared with existing technologies, the technical solution of this application can more precisely control the airflow, meet the needs of different areas within the mill, thereby improving production efficiency, reducing energy consumption, and minimizing the impact of production fluctuations, demonstrating significant technical advantages and application value.

[0046] like Figure 1 As shown in this embodiment, the decision-making module is a PLC module or a microcontroller module. The decision-making module plays a core role in the control unit, receiving and processing multi-dimensional parameter data from the sensor module and generating airflow adjustment commands according to a preset algorithm. The application of a PLC module or microcontroller module in the decision-making module ensures that the module has sufficient computing power and response speed, thereby achieving precise control of the airflow inside the mill.

[0047] The application of PLC modules and microcontroller modules can be realized in various ways. For example, PLC modules can be programmed to implement complex control logic and algorithm processing, making them suitable for industrial environments requiring high reliability and stability. Microcontroller modules, on the other hand, can provide efficient real-time data processing capabilities through embedded system design, making them suitable for applications requiring flexibility and cost control. In this embodiment, PLC modules and microcontroller modules can be used in conjunction with other hardware modules (such as communication modules, storage modules, etc.) to enhance the overall performance and functionality of the system.

[0048] Compared with existing technologies, the decision-making module of this application, by employing a PLC module or a microcontroller module, significantly improves the computing power and response speed of the control unit, ensuring precise control of the air volume inside the mill. This solves the problems of inaccurate air volume adjustment and slow response speed existing in traditional manual control methods, thereby improving production efficiency and energy utilization. Therefore, this application has significant technical advantages and economic benefits in practical applications.

[0049] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mill-based precision air supply device based on multi-dimensional parameter feedback, characterized in that: The system includes a sensor module, a control unit, an actuator, and a feedback loop. The sensor module is used to collect multi-dimensional parameters inside the mill in real time, including temperature, pressure, material humidity, airflow velocity, and particle size parameters. The control unit is communicatively connected to the sensor module and is used to receive and process the multi-dimensional parameter data, generating airflow adjustment commands through a preset algorithm. The actuator, connected to the control unit, includes a variable frequency fan and an air duct regulating valve, and is used to dynamically adjust the airflow inside the mill according to the airflow adjustment commands. The feedback loop feeds back the parameters adjusted by the actuator to the control unit, forming a closed-loop control. The sensor module, the actuator, and the feedback loop are all electrically connected to the control unit.

2. The mill-based precision air supply device based on multi-dimensional parameter feedback according to claim 1, characterized in that: The sensor module includes a pressure sensor, a humidity sensor, a laser particle size analyzer, and multiple temperature sensors.

3. The mill precision air supply device based on multi-dimensional parameter feedback according to claim 1, characterized in that: The control unit includes a data preprocessing module, a weight allocation module, and a decision module.

4. The mill precision air supply device based on multi-dimensional parameter feedback according to claim 1, characterized in that: The actuator includes an adjustable guide vane, adjustable louvers, and a variable frequency fan.

5. A mill-based precision air supply device based on multi-dimensional parameter feedback as described in claim 4, characterized in that: The adjustable guide vane adopts a multi-segment airfoil structure, with each segment independently equipped with a drive motor.

6. The mill precision air supply device based on multi-dimensional parameter feedback according to claim 3, characterized in that: The decision-making module is a PLC module or a microcontroller module.