Mine underground intelligent ventilation regulation system and method

Abstract

The application discloses a kind of mine underground intelligent ventilation regulation and control system and method, it is related to ventilation regulation and control technical field, comprising the following steps: the air quality information of the environment where personnel is located and the position information of personnel are collected;Air quality information of important well roadway engineering and key operating site is collected;Whether the air quality of underground ventilation meets the safety needs of underground personnel is determined by three-dimensional dynamic simulation calculation, when meeting, no adjustment is made;When not meeting, fan damper and air window state that meet the needs of underground personnel to ventilation and air quality are calculated by continuously automatically simulating adjusting fan damper and air window, and fan damper and air window are remotely controlled to change underground air quality and air flow state;When the calculation result of automatically simulating adjusting fan damper and air window cannot meet the needs of underground personnel to ventilation and air quality, alarm is carried out to prompt underground personnel or equipment to evacuate.

Description

Technical Field

[0001] This invention relates to the field of ventilation control technology, specifically to an intelligent ventilation control system and method for underground mines. Background Technology

[0002] Currently, underground mines in my country generally face the challenges of long and complex ventilation routes, leading to frequent personnel injuries due to ventilation difficulties. While some mines have begun to prioritize ventilation, the frequent movement of personnel and equipment underground, along with the constant changes in personnel, equipment, and the overall underground environment, makes traditional manual ventilation control inadequate to respond promptly and meet the demands of the ever-changing underground environment. Many underground mines are now adopting intelligent ventilation systems to regulate airflow and air quality. However, most existing intelligent ventilation systems rely on signal transmission and feedback to achieve overall control of airflow and air quality, neglecting the localized airflow and air quality. Ultimately, the goal of ventilation is personnel safety. Both manual and intelligent ventilation systems neglect the ventilation and air quality in the areas where personnel are present, resulting in significant ineffective ventilation, reduced efficiency, and an inability to truly guarantee the safety of underground workers. Summary of the Invention

[0003] To address the shortcomings mentioned in the background section, the present invention aims to provide an intelligent ventilation control system and method for underground mines.

[0004] The objective of this invention can be achieved through the following technical solution: an intelligent ventilation control system for underground mines, comprising: Mobile sensing module: used to detect and collect air quality information of the environment where personnel are located, and send it to the base station; Positioning module: Used to locate a person's position and send the person's location information to the base station; Fixed sensor module: used to detect and collect air quality information in important tunnel projects and key work sites, and send it to the base station; The underground ventilation 3D visualization control platform is used to receive air quality information of the environment where personnel are located, personnel location information, and air quality information of important mine tunnel projects and key work sites sent by the base station. It then uses simulation calculations to determine whether the underground ventilation and air quality meet the safety needs of underground personnel. If they meet the needs, no adjustments are made. If they do not meet the needs, the platform continuously and automatically simulates and adjusts the fan dampers and air windows to calculate the fan damper and air window status that meets the ventilation and air quality needs of underground personnel. It then sends signals to remotely control the fan dampers and air windows to change the underground air quality and airflow status. When the calculation results of the automatic simulation adjustment of the fan damper and air window cannot meet the ventilation and air quality needs of the underground personnel, an alarm signal is sent to the alarm module. Alarm module: Used to trigger an alarm upon receiving an alarm signal from the downhole ventilation 3D visualization control platform, alerting relevant personnel to evacuate personnel or equipment.

[0005] Preferably, the mobile sensing module includes an O2 sensor, a CO2 sensor, a wind speed sensor, a temperature sensor, and a humidity sensor, and can be further equipped with a methane concentration sensor, an SO2 concentration sensor, and a radon and progeny concentration sensor according to the characteristics of the mine.

[0006] Preferably, the positioning module includes a personnel identification card, which realizes real-time positioning of the person's location by continuously transmitting and exchanging signals with the base station.

[0007] Preferably, the alarm module includes multiple alarm modes such as sound, light, and vibration, and sends alarm information to the display screen of the portable integrated device via brief text, thereby prompting, warning, or prohibiting human behavior.

[0008] Preferably, the base station uses wireless signal transmission, and the distance between the base stations is within the effective transmission distance of the base station, which is 100~200m. The base stations are distributed throughout the well and are connected to the surface well ventilation three-dimensional visualization control platform through optical cables or optical fibers.

[0009] Preferably, the underground ventilation three-dimensional visualization control platform uses three-dimensional ventilation visualization software as the main carrier, and has a human-computer interactive visualization interface. It can observe personnel, equipment, airflow, and air quality information at various locations underground in real time. The three-dimensional ventilation simulation of the underground three-dimensional ventilation visualization control platform is based on the total underground air volume requirement and the three-dimensional solid model of the underground project. The total underground air volume requirement is the maximum value among the air volume required by underground personnel, the air volume required by underground equipment, and the air volume required by underground mining.

[0010] Preferably, the required air volume for underground mining is the sum of the required air volumes for each cutting, mining, preparation mining area, roadway excavation, and chamber.

[0011] Preferably, the fan is equipped with a signal receiving device and a frequency converter. After receiving the control signal transmitted from the surface-based three-dimensional visualization control platform for underground ventilation, the fan can be frequency-converted, thereby changing the fan speed and adjusting the air volume. The underground air doors and windows are equipped with signal receiving devices and automatic control devices. After receiving the control signal transmitted from the surface-based three-dimensional visualization control platform for underground ventilation, they can be remotely controlled and adjusted to change the wind resistance, thereby changing the overall or local wind speed and air quality.

[0012] A method for intelligent ventilation control in underground mines, comprising the following steps: Collect air quality information of the environment in which the personnel are located and the personnel's location information; Collect air quality information for important mine shaft projects and key work sites; The system uses three-dimensional dynamic simulation to determine whether the ventilation and air quality in the mine meet the safety needs of the personnel. If they do, no adjustments are made. If they do not meet the needs, the system continuously and automatically simulates and adjusts the fan dampers and air windows to calculate the fan damper and air window status that meets the ventilation and air quality needs of the personnel in the mine. The system also remotely controls the fan dampers and air windows to change the air quality and airflow status in the mine. When the calculation results of the automatic simulation adjustment of the fan damper and air window cannot meet the ventilation and air quality needs of the underground personnel, an alarm will be triggered to prompt the underground personnel or equipment to evacuate.

[0013] The beneficial effects of this invention are: The present invention utilizes a portable integrated device carried by underground personnel, which integrates a mobile sensing module, a positioning module, and an alarm module. This device is the core module of the invention, and it has functions for collecting and transmitting ventilation and air quality information, personnel positioning, and hazard warning alarms. It closely follows the movement of personnel, fundamentally realizing an intelligent ventilation control method for underground operations. This avoids inefficient or even ineffective control of airflow and air quality, and effectively ensures the needs of underground personnel for fresh airflow and air. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the system framework of the present invention; Figure 2 This is a flowchart of the method of the present invention.

[0015] In the picture: 1—Portable integrated device, 2—Base station, 3—Ventilation three-dimensional visualization control platform, 4—Fan, 5—Air damper and window, 11—Mobile sensing module, 12—Positioning module, 13—Alarm module. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figure 1 As shown, an intelligent ventilation control system for underground mines includes: Underground workers carry a portable integrated device 1, which integrates a mobile sensing module 11, a positioning module 12, and an alarm module 13. The mobile sensing module 11 detects and collects information on the ambient air quality of the personnel's surroundings, while the positioning device locates the personnel's position. Simultaneously, fixed sensing devices are installed in important tunnels and key work areas to detect and collect air quality information for these areas. This air quality information and personnel location information are transmitted via base stations 2 distributed throughout the mine to a three-dimensional visualization control platform 3 for underground ventilation located on the surface. The underground ventilation three-dimensional visualization control platform 3 uses simulation calculations to determine whether the underground ventilation and air quality meet the safety needs of the underground personnel. When they do, no adjustments are made; when they do not, it continuously and automatically simulates and adjusts the fans 4, dampers, and windows 5 to calculate the states of the fans 4, dampers, and windows 5 to meet the ventilation and air quality needs of the underground personnel, and sends signals to remotely control the fans 4, dampers, and windows 5 to change the underground air quality and airflow. When the calculation results of the automatic simulation adjustment of the fan 4, damper and window 5 cannot meet the ventilation and air quality needs of the underground personnel, the alarm will be remotely transmitted to the alarm module 13 on the portable integrated device 1 through the underground base station 2 to warn relevant personnel to evacuate personnel or equipment, so as to ensure the ventilation and air safety of personnel working underground.

[0018] The portable integrated device 1 carried by underground workers integrates a mobile sensing module 11, a positioning module 12, and an alarm module 13. The mobile sensing module 11 integrates various sensors, including an O2 sensor, a CO2 sensor, a wind speed sensor, a temperature sensor, and a humidity sensor. It can also be expanded to include methane concentration sensors, SO2 concentration sensors, and radon and progeny concentration sensors according to the characteristics of the mine (such as high-gas mines, high-sulfur mines, and uranium mines). The positioning module 12 mainly includes a personnel identification card, which realizes real-time positioning of the person's location by continuously transmitting and exchanging signals with the base station 2. The alarm module 13 includes multiple alarm modes such as sound, light, and vibration, and sends alarm information to the display screen of the portable integrated device 1 through short text messages to realize prompts, warnings, or prohibitions on human behavior.

[0019] The underground ventilation 3D visualization control platform 3 uses 3D ventilation visualization software as its main carrier and has a human-computer interactive visualization interface. It can monitor personnel, equipment, airflow, and air quality information at various locations underground in real time. The 3D ventilation simulation of the underground 3D ventilation visualization control platform 3 is based on the total underground air volume requirement and the 3D solid model of the underground project. The total underground air volume requirement is the maximum value among the air volume required by underground personnel, the air volume required by underground equipment, and the air volume required for underground mining (the air volume required for underground mining is the sum of the air volume required for each cutting, mining, pre-mining area, roadway excavation, and chamber). The underground ventilation 3D visualization control platform 3 receives airflow and air information, as well as personnel location information, transmitted in real time from the portable integrated device 1 carried by underground personnel through the underground base station 2. Based on this information, it performs real-time dynamic calculations and adjusts the fans 4 and the underground air doors and windows 5 in real time or provides alerts and alarms to personnel based on the calculation results.

[0020] The underground base station 2 uses wireless signal transmission. The distance between base stations 2 is within the effective transmission range of base station 2, generally 100~200m. Base stations 2 are distributed throughout the mine and are connected to the surface underground ventilation three-dimensional visualization control platform 3 via optical cable or optical fiber.

[0021] The underground ventilation fan 4 is equipped with a signal receiving device and a frequency converter. After receiving the control signal transmitted from the underground ventilation three-dimensional visualization control platform 3 on the surface, the fan 4 can be frequency-controlled, thereby changing the fan speed and adjusting the air volume. The underground ventilation door and air window 5 are equipped with signal receiving devices and automatic control devices. After receiving the control signal transmitted from the underground ventilation three-dimensional visualization control platform 3 on the surface, they can be remotely controlled and adjusted to change the wind resistance, thereby changing the overall or local wind speed and air quality.

[0022] This invention addresses the shortcomings of existing manual ventilation systems in underground mines, which are unable to respond promptly to changes in personnel, equipment, and engineering conditions. Furthermore, most existing intelligent ventilation systems rely on signal transmission and feedback to control overall airflow and air quality, neglecting the specific airflow and air quality in occupied areas, resulting in low ventilation efficiency and significant ineffective ventilation. This invention provides an intelligent ventilation control method that focuses on the ventilation and air quality safety of the local environment where underground workers are located. This method utilizes real-time monitoring of airflow and air quality information for underground personnel and key areas. A surface-based 3D visualization control platform simulates and calculates the underground environment in real time, subsequently adjusting fans, dampers, and other ventilation components to achieve real-time improvement of ventilation and air quality in occupied areas, meeting the safety ventilation and air quality requirements of underground workers.

[0023] This invention addresses the shortcomings of traditional underground ventilation methods, which are unable to respond promptly to changes in personnel and equipment, and general intelligent underground ventilation methods that only regulate the overall airflow and resistance while neglecting ventilation and air quality safety in specific manned working environments. By integrating a portable device with sensing, positioning, and alarm modules for real-time control of airflow and air information, and utilizing a wireless base station for information transmission, this invention enables real-time simulation and remote control of fans, dampers, and windows within the underground environment through a three-dimensional visualization control platform. This allows for real-time adjustments to the overall airflow and resistance, as well as the local airflow and air quality in manned working environments, effectively ensuring adequate ventilation and air quality for underground workers, improving ventilation efficiency, and reducing ineffective ventilation.

[0024] like Figure 2 As shown, it should be further explained that, in specific implementation, the present invention also provides an intelligent ventilation control method for underground mines, the method comprising the following steps: Collect air quality information of the environment in which the personnel are located and the personnel's location information; Collect air quality information for important mine shaft projects and key work sites; The system uses three-dimensional dynamic simulation to determine whether the ventilation and air quality in the mine meet the safety needs of the personnel. If they do, no adjustments are made. If they do not meet the needs, the system continuously and automatically simulates and adjusts the fan dampers and air windows to calculate the fan damper and air window status that meets the ventilation and air quality needs of the personnel in the mine. The system also remotely controls the fan dampers and air windows to change the air quality and airflow status in the mine. When the calculation results of the automatic simulation adjustment of the fan damper and air window cannot meet the ventilation and air quality needs of the underground personnel, an alarm will be triggered to prompt the underground personnel or equipment to evacuate.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this disclosure. Those skilled in the art should understand that this disclosure is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this disclosure. Various changes and modifications can be made to this disclosure without departing from its spirit and scope, and all such changes and modifications fall within the scope of this disclosure as claimed.

Claims

1. A smart ventilation control system for underground mines, characterized in that, include: Mobile sensing module: used to detect and collect air quality information of the environment where personnel are located, and send it to the base station; Positioning module: Used to locate a person's position and send the person's location information to the base station; Fixed sensor module: used to detect and collect air quality information in important tunnel projects and key work sites, and send it to the base station; The underground ventilation 3D visualization control platform is used to receive air quality information of the environment where personnel are located, personnel location information, and air quality information of important mine tunnel projects and key work sites sent by the base station. It then uses simulation calculations to determine whether the underground ventilation and air quality meet the safety needs of underground personnel. If they meet the needs, no adjustments are made. If they do not meet the needs, the platform continuously and automatically simulates and adjusts the fan dampers and air windows to calculate the fan damper and air window status that meets the ventilation and air quality needs of underground personnel. It then sends signals to remotely control the fan dampers and air windows to change the underground air quality and airflow status. The underground ventilation 3D visualization control platform uses 3D ventilation visualization software as its main carrier and has a human-computer interactive visualization interface. It can observe personnel, equipment, airflow, and air quality information at various locations underground in real time. The 3D ventilation simulation of the underground 3D ventilation visualization control platform is based on the total underground air volume requirement and the 3D solid model of the underground project. The total underground air volume requirement is the maximum value among the air volume required by underground personnel, the air volume required by underground equipment, and the air volume required by underground mining. The required air volume for underground mining is the sum of the required air volume for each cutting, mining, preparation mining area, roadway excavation, and chamber. The fan is equipped with a signal receiving device and a frequency converter. After receiving the control signal transmitted from the surface-based three-dimensional visualization control platform for underground ventilation, it can realize the frequency conversion of the fan, thereby changing the fan speed and adjusting the air volume. The underground air door and air window are equipped with signal receiving devices and automatic control devices. After receiving the control signal transmitted from the surface-based three-dimensional visualization control platform for underground ventilation, they can realize remote control and adjustment, change the wind resistance, and thus change the overall or local wind speed and air quality. When the calculation results of the automatic simulation adjustment of the fan damper and air window cannot meet the ventilation and air quality needs of the underground personnel, an alarm signal is sent to the alarm module. Alarm module: Used to trigger an alarm upon receiving an alarm signal from the downhole ventilation 3D visualization control platform, alerting relevant personnel to evacuate personnel or equipment.

2. The intelligent ventilation control system for underground mines according to claim 1, characterized in that, The mobile sensing module includes an O2 sensor, a CO2 sensor, a wind speed sensor, a temperature sensor, and a humidity sensor, and can be further expanded to include a methane concentration sensor, an SO2 concentration sensor, and a radon and progeny concentration sensor according to the characteristics of the mine.

3. The intelligent ventilation control system for underground mines according to claim 1, characterized in that, The positioning module includes a personnel identification card, which realizes real-time positioning of a person's location by continuously transmitting and exchanging signals with the base station.

4. The intelligent ventilation control system for underground mines according to claim 1, characterized in that, The alarm module includes multiple alarm modes such as sound, light, and vibration, and sends alarm information to the display screen of the portable integrated device via brief text messages, thereby prompting, warning, or prohibiting human behavior.

5. The intelligent ventilation control system for underground mines according to claim 1, characterized in that, The base stations use wireless signal transmission. The distance between the base stations is within the effective transmission distance of the base stations, which is 100~200m. The base stations are distributed throughout the well and are connected to the surface well ventilation three-dimensional visualization control platform through optical cables or optical fibers.

6. A method for intelligent ventilation control in underground mines, employing the intelligent ventilation control system for underground mines as described in any one of claims 1-5, characterized in that, The method includes the following steps: Collect air quality information of the environment in which the personnel are located and the personnel's location information; Collect air quality information for important mine shaft projects and key work sites; The system uses three-dimensional dynamic simulation to determine whether the ventilation and air quality in the mine meet the safety needs of the personnel. If they do, no adjustments are made. If they do not meet the needs, the system continuously and automatically simulates and adjusts the fan dampers and air windows to calculate the fan damper and air window status that meets the ventilation and air quality needs of the personnel in the mine. The system also remotely controls the fan dampers and air windows to change the air quality and airflow status in the mine. When the calculation results of the automatic simulation adjustment of the fan damper and air window cannot meet the ventilation and air quality needs of the underground personnel, an alarm will be triggered to prompt the underground personnel or equipment to evacuate.

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