Mine ventilation system

Abstract

The utility model relates to the technical field of mine ventilation, in particular to a mine ventilation system. Comprising an air inlet inclined shaft, an air return vertical shaft, an air inlet roadway and an air return roadway, at least two connection roadways are arranged between the air inlet roadway and the air return roadway, and each connection roadway is correspondingly provided with a ventilation air path; hydraulic air doors are oppositely arranged at the two ends of the ventilation air path; the hydraulic air door is provided with a monitoring module, and the output end of the monitoring module is connected with the first input end of the control module and used for obtaining control requirement data of the corresponding hydraulic air door. The output end of the control module is connected with the input end of the driving module, and the output end of the driving module is connected with the control end of the hydraulic air door, so that the control module regulates and controls the opening and closing degree of the hydraulic air door through the control demand data; the hydraulic air door is further provided with a feedback module, and the first output end of the feedback module is connected with the second input end of the control module. The method and the device can achieve the beneficial effect of dynamically adapting to the current exhaust demand.

Description

Technical Field

[0001] This application relates to the technical field of mine ventilation, and more particularly to a mine ventilation system. Background Technology

[0002] Mine ventilation systems are core infrastructure for ensuring safety and production efficiency in underground operations. Especially in deep mining and multi-area collaborative operations, their stability and the rationality of airflow distribution directly affect the continuous operation of the mine. In current mine construction, ventilation systems need to be planned in sync with mining engineering. However, due to the lagging progress of roadway construction and insufficient facility configuration, airflow paths have not been fully formed, resulting in structural defects in the ventilation system.

[0003] Specifically, the existing ventilation systems exhibit a contradiction between passive damper control mechanisms and dynamic production needs: traditional dampers are unable to respond to changes in transport flow in real time, the coordination of mining projects is insufficient, and construction delays further amplify the risks of wasted air volume and insufficient air supply to the working face, resulting in low ventilation efficiency and directly restricting the effective utilization of the mine's total air volume. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this application provides a mine ventilation system that achieves the beneficial effect of dynamically adapting to the current ventilation demand by constructing a hydraulic air door that is adaptively opened and closed by a control module in the connecting roadway between the intake airway and the return airway.

[0005] The technical solution adopted by this application to solve its technical problem is:

[0006] A mine ventilation system includes: an intake inclined shaft, a return vertical shaft, an intake roadway, and a return roadway. At least two connecting roadways are provided between the intake roadway and the return roadway, and each connecting roadway is provided with a ventilation passage. Hydraulic air doors are provided at opposite ends of the ventilation passage.

[0007] The hydraulic damper is equipped with a monitoring module. The output of the monitoring module is connected to the first input of the control module to obtain the control requirement data of the corresponding hydraulic damper.

[0008] The output of the control module is connected to the input of the drive module, and the output of the drive module is connected to the control terminal of the hydraulic damper. The control module adjusts the opening and closing degree of the hydraulic damper based on the control demand data.

[0009] The hydraulic damper is also equipped with a feedback module, and the first output terminal of the feedback module is connected to the second input terminal of the control module.

[0010] Optionally, each of the hydraulic dampers includes a door frame and two door panels, and one of the door panels is provided with a passage door;

[0011] In a hydraulic damper, the door leaf and the passage door are connected to the same hydraulic system, and the door leaf and the passage door are switched and controlled by a reversing valve in the hydraulic system.

[0012] Optionally, the total width of the two door panels of each hydraulic damper exceeds the total width of the door frame, forming an overlapping sealing interface in conjunction with the structure where the upper edge of the door panel covers the door frame.

[0013] Optionally, the passage door is provided with at least one adjustable air vent;

[0014] The control module is connected to the control terminal of the adjustable window through the drive module, and is used to dynamically adjust the opening degree of the corresponding adjustable window based on the control demand data, so as to adjust the ventilation volume.

[0015] Optionally, the adjustable window is a sliding window, including a window frame, window slats and window slat handle; the window frame, window slats and window slat handle are all made of non-combustible materials;

[0016] The window slat is slidably disposed inside the windshield frame, and the window slat handle is fixedly connected to the outer surface of the window slat for driving the window slat to move along the sliding trajectory of the windshield frame.

[0017] Optionally, the monitoring module includes an external sensor and an internal sensor; the external sensor and the internal sensor are respectively disposed on the inner and outer sides of the hydraulic damper.

[0018] The output terminals of both the external sensor and the internal sensor are connected to the first input terminal of the control module, and are used to detect the movement state of the trigger target through the sensors installed in the hydraulic damper and the opposing damper, and send the corresponding data to the control module.

[0019] Optionally, the monitoring module further includes an anti-pinch sensor disposed at the edge of the closed trajectory of each of the hydraulic dampers;

[0020] The output of the anti-pinch sensor is connected to the first input of the control module, and is used to detect whether there is a triggering target in the closed area of ​​the hydraulic damper, and send the corresponding detection signal to the control module.

[0021] Optionally, it also includes an opening / closing prompt module; the opening / closing prompt module is equipped with an audible and visual alarm.

[0022] The second output terminal of the feedback module is connected to the input terminal of the on / off prompt module, and is used to control the working state of the audible and visual alarm through the status data obtained by the feedback module.

[0023] Optionally, the air intake inclined shaft is equipped with a dust removal spray module;

[0024] The dust suppression spray module is electrically connected to the control module. In response to a dust concentration exceeding the standard, the control module controls the dust suppression spray module to suppress dust as needed.

[0025] Optionally, the return air shaft is equipped with a ventilation device.

[0026] The beneficial effects of this application are as follows: Hydraulic air doors are installed at both ends of each ventilation duct and at relative positions in each connecting roadway. Each hydraulic air door is equipped with a monitoring module to detect the control demand data of the connecting roadway. By transmitting the data to the control module, the operating status of the air door is dynamically adjusted to optimize airflow distribution. The control module calculates the appropriate opening and closing degree based on the received data and sends a control signal to the hydraulic air door through the drive module, enabling the air door to open and close precisely. In addition, the feedback module is responsible for feeding back the actual action status to the control module so that the control strategy can be adjusted in a timely manner. Through the synergistic effect of the above components, intelligent adjustment of the mine ventilation system is realized, effectively improving the airflow utilization efficiency, solving the problem that traditional air door control mechanisms cannot respond to changes in transport flow in real time, and enhancing the reliability and flexibility of the mine ventilation system. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a mine ventilation system provided in an embodiment of this application;

[0028] Figure 2 This is a system block diagram of the mine ventilation system provided in the embodiments of this application;

[0029] Figure 3 This is a schematic diagram of the hydraulic air door structure of the mine ventilation system provided in the embodiments of this application;

[0030] Figure 4 This is a schematic diagram of the plan design of the hydraulic air door of the mine ventilation system provided in the embodiments of this application.

[0031] Figure label:

[0032] 1. Intake inclined shaft; 2. Return air vertical shaft; 3. Intake airway; 4. Return airway; 5. Connecting airway; 6. Hydraulic damper; 7. Dust removal spray module; 8. Ventilation device; 100. Monitoring module; 200. Control module; 300. Drive module; 400. Feedback module; 61. Door frame; 62. Door leaf; 63. Passage door; 64. Adjustable air window; 601. Hydraulic system; 602. External sensor; 603. Internal sensor; 604. Opposing damper; 605. Anti-pinch sensor; 606. Audible and visual alarm. Detailed Implementation

[0033] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0034] The following will clearly and completely describe the concept, specific structure, and resulting technical effects of this application in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this application. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the scope of protection of this application. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this application can be combined interactively without contradicting each other.

[0035] Reference Figure 1 , Figure 1 This is a schematic diagram of a mine ventilation system provided in an embodiment of this application. Figure 1 The mine ventilation system provided in this application is shown, including an intake inclined shaft 1, a return vertical shaft 2, an intake roadway 3, and a return roadway 4. At least two connecting roadways 5 are provided between the intake roadway 3 and the return roadway 4, and each connecting roadway 5 is provided with a corresponding ventilation path. Further reference... Figure 2 , Figure 2 This is a system block diagram of a mine ventilation system provided in an embodiment of this application, wherein hydraulic dampers 6 are provided at both ends of the ventilation duct, which will be described in detail below:

[0036] The hydraulic damper 6 is equipped with a monitoring module 100. The output end of the monitoring module 100 is connected to the first input end of the control module 200 to obtain the control requirement data of the corresponding hydraulic damper 6.

[0037] Specifically, the monitoring module 100 includes infrared sensors 602 located inside and outside the hydraulic damper 6 and at multiple surrounding positions. The infrared sensors 602 can monitor the state of the hydraulic damper 6 (including open / closed / blocked), and can also monitor the presence of entities and their movement, including objects and pedestrians.

[0038] More specifically, the hydraulic air door 6 integrates a monitoring module 100, whose output signal is connected to a designated input terminal of the control module 200 via a physical interface, forming the core link for air door status perception and command generation. The monitoring module 100 collects air door operating parameters and surrounding environmental information (such as door displacement, roadway wind speed, and trigger target proximity signals) in real time using built-in sensors, and converts the raw data into standardized control requirement data packets. The control module 200 analyzes the dynamic requirements of the current ventilation system based on the received data packets, including the air door opening and closing timing, opening and closing angle, and action priority, to form execution commands that match the overall mine ventilation strategy.

[0039] Furthermore, the output terminal of the control module 200 is connected to the input terminal of the drive module 300, and the output terminal of the drive module 300 is connected to the control terminal of the hydraulic damper 6, so that the control module 200 can adjust the opening and closing degree of the hydraulic damper 6 through the control demand data.

[0040] Specifically, the output of the control module 200 and the input of the drive module 300 are connected by electrical signals to form a data transmission link. Based on real-time acquired control requirement data (such as vehicle traffic status, wind pressure parameters, or environmental monitoring results), the control module 200 generates corresponding control commands and sends them to the drive module 300. Upon receiving the commands, the drive module 300 converts the electrical signals into mechanical actions via an electro-hydraulic conversion device (such as a hydraulic station or cylinder), driving the actuator of the hydraulic damper 6 (such as opening and closing the door leaf 62 or extending and retracting the cylinder), thereby dynamically adjusting the opening angle or closing degree of the damper.

[0041] More specifically, the control terminal of the hydraulic air door 6 is directly linked to the output terminal of the drive module 300. By adjusting the opening and closing range of the air door, the air volume passing through the connecting roadway 5 can be precisely controlled. For example, when a transport vehicle passes through, the control module 200 reduces the air door closure degree based on the infrared sensor signal to ensure passage; when there is no vehicle, the closure degree is increased to reduce air leakage. This dynamic adjustment mechanism ensures that the ventilation system maintains a stable airflow path while taking into account the efficiency of vehicle and personnel passage by responding in real time to the transportation needs and airflow status within the mine, thereby solving the airflow short-circuit problem caused by the fixed opening and closing of traditional air doors.

[0042] Furthermore, the hydraulic damper 6 is also provided with a feedback module 400, the first output terminal of which is connected to the second input terminal of the control module 200.

[0043] Specifically, the feedback module 400 of the hydraulic damper 6 establishes a data connection with the second input terminal of the control module 200 through its first output terminal, forming a closed-loop control circuit. The feedback module 400 collects the damper's execution status in real time (such as the opening and closing position of the door leaf 62, the cylinder pressure value, and the sealing skin fit), and transmits the data to the control module 200 for it to verify the deviation between the current damper action and the preset target. For example, when the hydraulic station drives the cylinder to push the door leaf 62 to close, the feedback module 400 monitors whether the door leaf 62 completely covers the door frame 61 and the air leakage rate is ≤3%. If an abnormality is detected (such as the air leakage rate exceeding the standard due to seal damage), a correction signal is immediately sent to the control module 200.

[0044] More specifically, the control module 200 combines feedback data with external inputs (such as infrared sensor signals acquired by the monitoring module 100 and vehicle passage requirements) to dynamically adjust the hydraulic output parameters of the drive module 300 (such as oil pressure and cylinder extension / retraction speed) to ensure that the opening and closing actions of the airlock are precisely adapted to the real-time transportation and ventilation needs of the mine. This mechanism effectively solves the problem of incomplete closure or delayed response caused by the lack of status monitoring in traditional airlocks, ensuring the stability of the airflow path in the key connecting roadway 5 and the passage efficiency of the transportation channel.

[0045] Furthermore, the ventilation system also includes an opening / closing indication module; the opening / closing indication module is equipped with an audible and visual alarm 606;

[0046] The second output terminal of the feedback module 400 is connected to the input terminal of the on / off prompt module, and is used to control the working state of the audible and visual alarm 606 through the status data obtained by the feedback module 400.

[0047] Specifically, the opening / closing prompt module integrates an audible and visual alarm 606, whose input is connected to the second output of the feedback module 400 via a signal line, forming a status prompt link. The feedback module 400 collects real-time action status data of the hydraulic damper 6 (such as the opening and closing position of the door leaf 62, the cylinder pressure value, and the sealing status), and transmits the data to the opening / closing prompt module through the second output. Based on the received status data, the opening / closing prompt module drives the audible and visual alarm 606 to execute preset prompt logic. For example, when the damper begins to close, the audible and visual alarm 606 triggers a flashing red light and plays a voice prompt saying "The damper on the other side is open, please wait"; after the damper is fully opened, the light switches to a solid green and prompts "Damper is open, please be careful."

[0048] More specifically, by providing real-time feedback on the operation status of the dampers, surrounding personnel and vehicles are simultaneously alerted to avoid traffic conflicts or safety accidents caused by the opening and closing of the dampers. At the same time, standardized audio-visual coding (such as red light stop, green light go) strengthens the standardization of operation and ensures the coordination between the dynamic adjustment of the ventilation system and the safety management of the transportation channel.

[0049] Furthermore, the air intake inclined shaft 1 is equipped with a dust removal spray module 7;

[0050] The dust suppression spray module 7 is electrically connected to the control module 200. In response to the dust concentration exceeding the standard, the control module 200 controls the dust suppression spray module 7 to suppress dust as needed.

[0051] The air intake inclined shaft 1 may include multiple inclined shafts, including a main inclined shaft and a secondary inclined shaft in this embodiment.

[0052] Specifically, the intake shaft 1 integrates a dust suppression spray module 7, which is connected to the control module 200 via an electrical signal line, forming a dynamic dust concentration control link. The dust suppression spray module 7 has a built-in dust concentration sensor that monitors the concentration of suspended particulate matter (such as phosphate rock dust) in the intake shaft 1 in real time and transmits the data synchronously to the control module 200. When the dust concentration is detected to exceed a preset safety threshold, the control module 200 sends a start command to the dust suppression spray module 7, driving the high-pressure water pump and atomizing nozzles to perform spray dust suppression action. The water mist adsorbs and settles suspended particulate matter, reducing dust pollution in the working environment.

[0053] More specifically, the spray intensity and frequency of the dust suppression spray module 7 are dynamically adjusted based on the real-time dust concentration. For example, during peak ore transportation periods, when the dust concentration increases to a certain level, the control module 200 will increase the spray frequency to a continuous spraying mode, covering the entire section of the intake shaft 1; during periods of low concentration, it will switch to intermittent spraying to save water resources. This closed-loop control achieves on-demand dust suppression, ensuring that the air quality of the mine ventilation system meets standards while avoiding the water waste of traditional fixed spraying modes, thus meeting the environmental protection and efficiency requirements of high-capacity mine transportation scenarios.

[0054] Furthermore, the return air shaft 2 is equipped with a ventilation device 8.

[0055] Specifically, the return air shaft 2 integrates a ventilation device 8, whose core function is to guide the polluted airflow generated at the mine working face to the surface through negative pressure, maintaining air circulation and cleanliness underground. The ventilation device 8 consists of a multi-stage centrifugal exhaust fan, guide vanes, and an airflow regulating valve. The exhaust fan is driven by a variable frequency motor, which can dynamically adjust its speed according to the total airflow demand of the mine, adapting to the ventilation load of different production stages. The guide vanes are arranged on the inner wall of the shaft to optimize the airflow path and reduce eddy current losses; the airflow regulating valve is linked to the control system through an electric actuator to balance the return air distribution in each mining area in real time.

[0056] More specifically, the control module 200 of the ventilation device 8 collects real-time data on air pressure, flow rate, and dust concentration in the shaft through sensors, and adjusts the exhaust fan power and the opening of the air valve based on a preset algorithm. For example, when insufficient return air volume is detected in the second mining area, the control module 200 increases the opening of the corresponding air valve and increases the speed of the exhaust fan to ensure efficient discharge of polluted air.

[0057] Furthermore, this application also provides a schematic diagram of the hydraulic damper 6 structure, with reference to... Figure 3 , Figure 3 This is a schematic diagram of the hydraulic air door 6 of the mine ventilation system provided in this application embodiment, as shown below. Figure 3 As shown, each hydraulic damper 6 is equipped with a door frame 61, a door leaf 62, a passage door 63, and an adjustable air window 64. The following describes the details... Figure 3 Please provide a detailed explanation:

[0058] Each of the hydraulic dampers 6 includes a door frame 61 and two door panels 62, and a passage door 63 is provided on one of the door panels 62;

[0059] In a hydraulic damper 6, the door leaf 62 and the passage door 63 are connected to the same hydraulic system 601, and the door leaf 62 and the passage door 63 are switched and controlled by the reversing valve in the hydraulic system 601.

[0060] Specifically, the hydraulic damper 6 includes a door frame 61 and two independent door panels 62, one of which integrates a passage door 63 (for pedestrians or small vehicles). The door panel 62 and the passage door 63 are linked and controlled by a cylinder drive device in the same hydraulic system 601. A reversing valve in the hydraulic system 601 switches the oil circuit direction, thereby synchronously adjusting the opening and closing actions of the door panel 62 and the passage door 63. For example, when a transport vehicle needs to pass through the connecting lane 5, the reversing valve switches the oil circuit to fully open the door panel 62, and the passage door 63 unlocks simultaneously. After the vehicle passes, the reversing valve reverses the oil circuit, driving the door panel 62 to close to a preset sealed state, while simultaneously locking the passage door 63 to block air leakage.

[0061] More specifically, the coordinated operation of the door 62 and the passage door 63 is centrally controlled by a single hydraulic system 601, which satisfies the passage requirements of the transportation channel while ensuring the effective closure of the ventilation path. For example, when no vehicles are passing through, the door 62 and the passage door 63 maintain a high degree of closure to prevent airflow short-circuiting; when the infrared sensor detects a vehicle approaching, the hydraulic system 601 responds quickly, and the door 62 and the passage door 63 open synchronously, ensuring both transportation efficiency and ventilation stability.

[0062] Furthermore, the total width of the two door leaves 62 of each hydraulic damper 6 exceeds the total width of the door frame 61, and the upper edge of the door leaf 62 covers the door frame 61 to form an overlapping sealing interface.

[0063] Specifically, the total width of the two door panels 62 of the hydraulic damper 6 exceeds the total width of the door frame 61, causing the side edges of the door panels 62 to extend beyond the frame structure when closed, forming a horizontally overlapping area. The upper edge of the door panel 62 covers the top of the door frame 61, forming a vertically overlapping structure in the closed state through the extension design of the metal sheet. The horizontal and vertical overlapping areas, combined with the elastic deformation of the sealing skin (such as rubber or polyurethane material), form multiple physical barriers, blocking airflow through the gap between the door panel 62 and the door frame 61.

[0064] For example, when the door leaf 62 is fully closed, the extra-wide portion overlaps and presses against the edge of the door frame 61, and the sealing skin is tightly fitted to the contact surface under the thrust of the hydraulic cylinder, controlling the air leakage rate within the technical requirement of ≤3%. This overlapping sealing interface design effectively solves the air leakage problem caused by insufficient matching between the door leaf 62 and the frame size in traditional air doors, ensuring the stability of the airflow path and the ability to maintain negative pressure at key nodes in the mine ventilation system (such as the intersection of connecting roadway 5).

[0065] Furthermore, the passage door 63 is provided with at least one adjustable air window 64;

[0066] The control module 200 is connected to the control terminal of the adjustable window 64 through the drive module 300, and is used to dynamically adjust the opening degree of the corresponding adjustable window 64 according to the control demand data, so as to adjust the ventilation volume.

[0067] Specifically, the passage door 63 integrates at least one adjustable ventilation window 64, whose control terminal is connected to the control module 200 via the drive module 300, forming a closed-loop control link. Based on real-time acquired control demand data (such as wind pressure monitoring values, vehicle passage status, or preset airflow thresholds), the control module 200 generates adjustment commands and sends them to the drive module 300. The drive module 300 adjusts the opening angle of the ventilation window via hydraulic or electric actuators (such as push rods or slide rails), thereby dynamically controlling the airflow through the ventilation window. For example, when the transportation flow in the mine increases, the control module 200 increases the opening angle of the ventilation window based on infrared sensing signals to increase ventilation; during off-peak transportation periods, it decreases the opening angle to reduce air leakage.

[0068] Furthermore, the adjustable window 64 is a sliding window, including a window frame, window slats and window slat handle; the window frame, window slats and window slat handle are all made of non-combustible materials;

[0069] The window slat is slidably disposed inside the windshield frame, and the window slat handle is fixedly connected to the outer surface of the window slat for driving the window slat to move along the sliding trajectory of the windshield frame.

[0070] Specifically, the adjustable window 64 adopts a push-pull structure design, and its core components include the window frame, window leaf and window leaf handle. All components are made of non-combustible materials (such as metal alloys or fireproof composite materials, which are iron in this embodiment) to meet the mine fire safety standards.

[0071] In addition, the outer frame of the ventilation window is fixed to the reserved opening of the passage door 63 or door leaf 62, and the window slats are embedded inside the outer frame through a sliding rail mechanism, allowing them to slide horizontally. The window slat handle is fixed to the outer surface of the window slats, and can be manually operated or linked with the drive module 300 to push the window slats along the sliding rail of the outer frame, thereby adjusting the opening area of ​​the ventilation window and realizing dynamic control of the airflow.

[0072] Furthermore, referring to Figure 4 , Figure 4 This is a schematic diagram of the plan design of the hydraulic air door 6 of the mine ventilation system provided in this application embodiment. The following is in conjunction with... Figure 4 Please provide a detailed explanation:

[0073] The monitoring module 100 includes an external sensor 602 and an internal sensor 603; the external sensor 602 and the internal sensor 603 are respectively disposed on the inner and outer sides of the hydraulic damper 6.

[0074] The output terminals of the external sensor 602 and the internal sensor 603 are both connected to the first input terminal of the control module 200, and are used to detect the movement state of the trigger target through the sensors set in the hydraulic damper 6 and the opposing damper 604, and send the corresponding data to the control module 200.

[0075] Specifically, the monitoring module 100 consists of an external sensor 602 and an internal sensor 603, which are integrated on the outer and inner surfaces of the hydraulic damper 6, respectively. The external sensor 602 monitors the movement of trigger targets (such as transport vehicles or pedestrians) outside the hydraulic damper 6 in real time, while the internal sensor 603 synchronously collects airflow parameters (such as air pressure and flow velocity) and sealing status inside the damper. The outputs of both sensors are connected to the first input of the control module 200 via signal lines, transmitting the detection data (such as vehicle approach signals and door closure degree) to the control module 200 in real time.

[0076] More specifically, the control module 200 analyzes the dynamic behavior of the trigger target and the door status based on the coordinated data from the internal and external sensors 602. For example, when the external sensor 602 detects a vehicle approaching, the internal sensor 603 simultaneously verifies that there are no obstructions inside the door and that the sealing status is normal. The control module 200 then sends a command to the drive module 300 to drive the hydraulic system 601 to switch the reversing valve and execute the door opening action. This mechanism, through the complementary data from the internal and external sensors 602, ensures precise matching between the door action and transportation needs and airflow status, solving the problem of false triggering or response delay caused by unidirectional monitoring in traditional doors, and ensuring the stable operation of the mine ventilation system in dynamic transportation environments.

[0077] Furthermore, the monitoring module 100 also includes an anti-pinch sensor 605 disposed at the edge of the closed trajectory of each of the hydraulic dampers 6;

[0078] The output terminal of the anti-pinch sensor 605 is connected to the first input terminal of the control module 200, and is used to detect whether there is a triggering target within the closed area of ​​the hydraulic damper 6, and send the corresponding detection signal to the control module 200.

[0079] Specifically, the monitoring module 100 includes an anti-pinch sensor 605, which is installed in the edge area of ​​the closing trajectory of the hydraulic damper 6 (such as the upper and lower sides and sides where the door leaf 62 contacts the door frame 61). It uses infrared or pressure sensing technology to detect in real time whether a triggering target (such as a person, vehicle, or obstacle) exists within the closed area. The output terminal of the anti-pinch sensor 605 is connected to the first input terminal of the control module 200 via a signal line, converting the detected obstacle presence status into an electrical signal and transmitting it to the control module 200.

[0080] More specifically, when the hydraulic damper 6 performs the closing action, the anti-pinch sensor 605 continuously scans the closing path. If a triggering target is detected entering the closing area (such as a pedestrian being stuck or equipment getting stuck), the sensor immediately sends an interrupt signal to the control module 200. The control module 200 then sends a stop or reverse action command to the drive module 300 to stop the closing of the door 62 and return it to a safe position to avoid pinching or equipment damage.

[0081] The above is a detailed description of the preferred embodiments of this application. However, the invention of this application is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A mine ventilation system, characterized in that, include: The system includes an intake inclined shaft, a return vertical shaft, an intake airway, and a return airway. At least two connecting airways are provided between the intake airway and the return airway, and each connecting airway is provided with a corresponding ventilation airway. Hydraulic dampers are provided at both ends of the ventilation airway. The hydraulic damper is equipped with a monitoring module. The output of the monitoring module is connected to the first input of the control module to obtain the control requirement data of the corresponding hydraulic damper. The output of the control module is connected to the input of the drive module, and the output of the drive module is connected to the control terminal of the hydraulic damper. The control module adjusts the opening and closing degree of the hydraulic damper based on the control demand data. The hydraulic damper is also equipped with a feedback module, and the first output terminal of the feedback module is connected to the second input terminal of the control module.

2. The mine ventilation system according to claim 1, characterized in that, Each of the hydraulic dampers includes a door frame and two door panels, and one of the door panels is provided with a passage door; In a hydraulic damper, the door leaf and the passage door are connected to the same hydraulic system, and the door leaf and the passage door are switched and controlled by a reversing valve in the hydraulic system.

3. The mine ventilation system according to claim 2, characterized in that, The total width of the two door panels of each hydraulic damper exceeds the total width of the door frame, and the upper edge of the door panel covers the door frame to form an overlapping sealing interface.

4. The mine ventilation system according to claim 2, characterized in that, The passage door is equipped with at least one adjustable air vent. The control module is connected to the control terminal of the adjustable window through the drive module, and is used to dynamically adjust the opening degree of the corresponding adjustable window based on the control demand data, so as to adjust the ventilation volume.

5. The mine ventilation system according to claim 4, characterized in that, The adjustable window is a sliding window, including a window frame, window slats and window slat handle; the window frame, window slats and window slat handle are all made of non-combustible materials; The window slat is slidably disposed inside the windshield frame, and the window slat handle is fixedly connected to the outer surface of the window slat for driving the window slat to move along the sliding trajectory of the windshield frame.

6. The mine ventilation system according to claim 2, characterized in that, The monitoring module includes an external sensor and an internal sensor; the external sensor and the internal sensor are respectively disposed on the inner and outer sides of the hydraulic damper. The output terminals of both the external sensor and the internal sensor are connected to the first input terminal of the control module, and are used to detect the movement state of the trigger target through the sensors installed in the hydraulic damper and the opposing damper, and send the corresponding data to the control module.

7. The mine ventilation system according to claim 6, characterized in that, The monitoring module also includes an anti-pinch sensor disposed at the edge of the closed trajectory of each hydraulic damper; The output of the anti-pinch sensor is connected to the first input of the control module, and is used to detect whether there is a triggering target in the closed area of ​​the hydraulic damper, and send the corresponding detection signal to the control module.

8. The mine ventilation system according to claim 1, characterized in that, It also includes an opening / closing prompt module; the opening / closing prompt module is equipped with an audible and visual alarm. The second output terminal of the feedback module is connected to the input terminal of the on / off prompt module, and is used to control the working state of the audible and visual alarm through the status data obtained by the feedback module.

9. The mine ventilation system according to claim 1, characterized in that, The air intake inclined shaft is equipped with a dust removal spray module; The dust suppression spray module is electrically connected to the control module. In response to a dust concentration exceeding the standard, the control module controls the dust suppression spray module to suppress dust as needed.

10. The mine ventilation system according to claim 1, characterized in that, The return air shaft is equipped with a ventilation device.

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