Mine ventilation system

Abstract

The utility model relates to the technical field of mine ventilation, in particular to a mine ventilation system which comprises a mine area ground and a remote control room used for monitoring. A main ventilation assembly and a control cabinet are arranged on the ground of the mining area, the anti-explosion contra-rotating axial flow fan is started and controls the rotating speed through a variable-frequency starter, the PLC information collection module is used for collecting running state data of a driving motor of the anti-explosion contra-rotating axial flow fan, equipment parameters are read through a serial port server in a remote control room, and the remote control room is used for controlling the running state data of the driving motor of the anti-explosion contra-rotating axial flow fan. According to the mine ventilation monitoring system, data are acquired and uploaded all the time through a network, so that monitoring personnel can observe the data conveniently and control ventilation equipment to adjust the ventilation condition in a mine according to the data, the wind speed, wind pressure and hazardous gas in a roadway are monitored through a sensor arranged in the mine roadway, and then the mine ventilation monitoring effect is achieved. In addition, real-time adjustment and control can be performed according to detection data, and use is more reliable compared with a traditional mine ventilation system.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mine ventilation, specifically is a mine ventilation system. BACKGROUND

[0002] The chute is a roadway that uses self-weight to slide ore from top to bottom, and the minefield is divided into several strips along the whole length of the strike at different elevations along the inclination direction of the ore body, and each strip is called a section. In the mine, the oxygen is thin, and fresh air is transported into the mine through the ventilation system. As the air flows in the mine, harmful gases and dust in the mine can be discharged.

[0003] Currently, the main ventilation mode for mines with small coal seam inclination and shallow coal seam burial is central partitioning. Ventilation is mainly through mechanical extraction. Main and auxiliary inclined shafts and air return vertical shafts return air. The mining working face uses U-shaped ventilation, and the excavation working area uses a local fan for air circulation. The ventilation mode is pressure-in.

[0004] However, the existing mine ventilation system cannot monitor the air flow in the mine, and the main ventilation system has slow information transmission efficiency and slow equipment control response speed, resulting in low reliability of the ventilation system. Therefore, a mine ventilation system is proposed to solve the above problems. INVENTION CONTENTS

[0005] In order to make up for the shortcomings of the prior art, the mine ventilation system is proposed to solve the problems in the prior art.

[0006] The technical scheme adopted by the utility model to solve its technical problems is: the mine ventilation system comprises a mine area ground and a remote control room for monitoring; a main ventilation assembly and a control cabinet are arranged on the mine area ground; a frequency converter starter, a PLC information acquisition module, an information data switch, an information storage module, and a signal transmission and reception module are arranged in the control cabinet;

[0007] The main ventilation assembly comprises a ventilation mounting seat, two air ducts are formed in the ventilation mounting seat, air pipes are mounted at the openings of the two air ducts, and two explosion-proof counter-rotating axial flow fans are arranged in the air pipes;

[0008] The explosion-proof counter-rotating axial flow fan is started and controlled by the frequency converter starter, and the PLC information acquisition module is used to acquire the running state data of the driving motor of the explosion-proof counter-rotating axial flow fan;

[0009] Sensors for monitoring wind speed and dangerous gases are installed in each roadway in the mine, and the sensors are connected to the information data switch through signal lines;

[0010] The remote control room is provided with a serial port server for reading device parameters, and the mine ventilation monitoring function is achieved, and real-time adjustment control can be performed according to detection data, and the mine ventilation system is more reliable compared with a traditional mine ventilation system.

[0011] Preferably, the two explosion-proof counter-rotating axial flow fans arranged in the air pipe are arranged oppositely, and the two air pipe other end openings are respectively provided with air guide ports, and the two air pipes and the two air guide ports are installed on the mine area ground through support pieces, and the supporting and installing function is achieved, and the normal use of the ventilation system is ensured.

[0012] Preferably, a camera for monitoring the running state of the main ventilation assembly is installed on the mine area ground, and the camera is connected to the information storage module through a signal line, and the ventilation system monitoring function is achieved, so that the ventilation state can be adjusted.

[0013] Preferably, two sets of closing assemblies for respectively closing two air ducts are symmetrically installed on the ventilation mounting seat, the closing assembly comprises a fitting groove and a fixed frame, the fitting groove is opened in the inside of the ventilation mounting seat, and the fixed frame is installed on the ventilation mounting seat and located on the opening of the fitting groove, and the air duct closing and opening function is achieved, and the reliability of the ventilation system is ensured.

[0014] Preferably, a closing plate is slidably arranged in the fitting groove, and the closing plate can be lifted upwards into the fixed frame, and a threaded hole is formed in the upper side of the closing plate, and the closing plate lifting and lowering function is achieved, so that the air duct can be closed and opened.

[0015] Preferably, a lifting motor is installed on the fixed frame through a fixing piece, an output shaft of the lifting motor is provided with a screw rod penetrating through the fixed frame, and the screw rod is vertically arranged in the threaded hole formed in the upper side of the closing plate, and the system control function is achieved.

[0016] Preferably, an air outlet pipeline communicating with the two air ducts is arranged below the ventilation mounting seat, and the normal ventilation use function of the ventilation system is achieved.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. The utility model discloses a serial port server is used for reading device parameters in the remote control room, and data is uploaded through network at all times, so that monitoring personnel can observe data, and adjust mine ventilation according to data control ventilation equipment, the sensor arranged in the mine roadway is used for monitoring the wind speed, air pressure and dangerous gas in the roadway, and the mine ventilation monitoring function is achieved, and real-time adjustment control can be performed according to detection data, and the mine ventilation system is more reliable compared with a traditional mine ventilation system. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is a first stereoscopic structure schematic diagram;

[0021] Figure 2 It is a main ventilation system main structure cut enlarged schematic diagram;

[0022] Figure 3 It is a control cabinet main structure enlarged schematic diagram;

[0023] Figure 4 It is a ventilation mounting seat main structure cut enlarged schematic diagram.

[0024] In the drawings: 1, mine area ground; 2, control cabinet; 3, frequency converter starter; 4, PLC information acquisition module; 5, information data switch; 6, information storage module; 7, signal transmission receiving module; 8, ventilation mounting seat; 9, air pipe; 10, anti-explosion counter-rotating axial flow fan; 11, air outlet; 12, air duct; 13, embedded groove; 14, fixed frame; 15, closure plate; 16, lifting motor; 17, screw rod; 18, air outlet pipe; 19, camera. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] Please refer to Figures 1-4 The mine ventilation system shown in the drawings comprises a mine area ground 1 and a remote control room for monitoring; the mine area ground 1 is provided with a main ventilation assembly and a control cabinet 2; the control cabinet 2 is provided with a frequency converter starter 3, a PLC information acquisition module 4, an information data switch 5, an information storage module 6 and a signal transmission receiving module 7 inside;

[0027] The main ventilation assembly comprises a ventilation mounting seat 8, two air ducts 12 are formed in the ventilation mounting seat 8, air pipes 9 are respectively installed at the openings of the two air ducts 12, and two anti-explosion counter-rotating axial flow fans 10 are arranged in the two air pipes 9;

[0028] The anti-explosion counter-rotating axial flow fan 10 is started and the rotating speed is controlled through the frequency conversion starter 3, and the PLC information acquisition module 4 is used to acquire the running state data of the driving motor of the anti-explosion counter-rotating axial flow fan 10.

[0029] The sensors for monitoring the wind speed and the dangerous gas are installed in each roadway in the mine, and the sensors are connected to the information data switch 5 through signal lines.

[0030] The serial port server for reading the equipment parameters is arranged in the remote control room.

[0031] The two anti-explosion counter-rotating axial flow fans 10 arranged oppositely are arranged in the air pipe 9, the air guide openings 11 are arranged at the other ends of the two air pipes 9 respectively, and the two air pipes 9 and the two air guide openings 11 are installed on the mine area ground 1 through the supporting members.

[0032] The camera 19 for monitoring the running state of the main ventilation assembly is installed on the mine area ground 1, and the camera 19 is connected to the information storage module 6 through a signal line.

[0033] In the working process, since the existing mine ventilation system cannot monitor the air flow in each part of the mine, the information transmission efficiency of the main ventilation system is slow, the equipment control reaction speed is slow, and the reliability of the ventilation system is low. In the scheme, the driving motor of the anti-explosion counter-rotating axial flow fan 10 is controlled through the frequency conversion starter 3, the power of the anti-explosion counter-rotating axial flow fan 10 can be adjusted through the frequency conversion starter 3 so as to control the wind speed and the air volume, the gigabit Ethernet is arranged in the mine area, the equipment parameters are read through the serial port server in the remote control room, the data is uploaded through the network at any time, the monitoring personnel can observe the data, and the ventilation equipment can be controlled according to the data to adjust the ventilation condition in the mine. The running state of the driving motor of the anti-explosion counter-rotating axial flow fan 10 is acquired and read through the PLC information acquisition module 4, the data acquired by the PLC information acquisition module 4 is uploaded to the network so as to be monitored and read by the monitoring personnel, the frequency conversion starter 3 and the PLC information acquisition module 4 are connected to the information data switch 5 to transmit the data, the information data switch 5 is connected to the information storage module 6 to store and backup the data, the information data switch 5 is further connected to the signal transmission and reception module 7 to transmit the data, the signal transmission and reception module 7 is connected to the frequency conversion starter 3 so as to control the anti-explosion counter-rotating axial flow fan 10 through the frequency conversion starter 3, the sensors arranged in the mine roadway are used to monitor the wind speed, the wind pressure and the dangerous gas such as methane and carbon monoxide in the roadway, and the data transmission and monitoring are realized through the information data switch 5 and the signal transmission and reception module 7, so that the mine ventilation monitoring function is realized, and the real-time adjustment and control can be realized according to the detection data. Compared with the traditional mine ventilation system, the use is more reliable.

[0034] Please refer to Figure 4 As shown, two sets of closing assemblies for closing two air ducts 12 respectively are symmetrically installed on the ventilation mounting base 8, and the closing assemblies include a fitting groove 13 and a fixed frame 14, the fitting groove 13 is opened inside the ventilation mounting base 8, and the fixed frame 14 is installed on the ventilation mounting base 8 and located on the opening of the fitting groove 13.

[0035] A closing plate 15 is slidably arranged in the fitting groove 13, and the closing plate 15 can be lifted upwards into the fixed frame 14, and a threaded hole is opened on the upper side of the closing plate 15.

[0036] A lifting motor 16 is installed on the fixed frame 14 through a fixing member, an output shaft of the lifting motor 16 is provided with a screw rod 17 penetrating through the fixed frame 14, and the screw rod 17 is vertically arranged in the threaded hole opened on the upper side of the closing plate 15.

[0037] An air outlet duct 18 is arranged below the ventilation mounting base 8 and communicated with the two air ducts 12.

[0038] In operation, in order to ensure the normal use of the main ventilation system in the scheme, one use and one standby can be implemented to ensure the ventilation reliability, in the scheme, the screw rod 17 is rotated when the lifting motor 16 is operated, the closing plate 15 is lifted and lowered in the fitting groove 13 when the screw rod 17 is rotated, and the air duct 12 is closed and opened in the sliding process, the air duct 12 can pass through the installed air pipe 9 when the air duct 12 is opened, the lifting motor 16 is connected with the frequency converter starter 3, and the opening state of the air duct 12 is uploaded through the information data exchange 5 and the signal transmission and receiving module 7 to monitor and control, another set of air pipe 9 can be adjusted to operate for ventilation protection when one set of air pipe 9 is damaged and stops operating, and the main ventilation system control function is achieved, and the use reliability of the main ventilation system is ensured.

[0039] The working principle is that the driving motor of the explosion-proof counter-rotating axial flow fan 10 is controlled by the frequency conversion of the frequency converter 3, and the power of the explosion-proof counter-rotating axial flow fan 10 can be adjusted by the frequency converter 3 to control the wind speed and the air volume, and a gigabit Ethernet is arranged in the mine area, the device parameters are read by using a serial port server in a remote control room, and the data is uploaded in real time through the network, so that the monitoring personnel can observe the data, and the ventilation equipment in the mine is adjusted according to the data to adjust the ventilation condition in the mine, and the running state of the driving motor of the explosion-proof counter-rotating axial flow fan 10 is collected and read by the PLC information collection module 4, the data collected by the PLC information collection module 4 is uploaded to the network for monitoring and reading by the monitoring personnel, the frequency converter 3 and the PLC information collection module 4 are connected with the information data switch 5 for data transmission, the information data switch 5 is connected with the information storage module 6 for data storage and backup, and the information data switch 5 is further connected with the signal transmission and receiving module 7 for data transmission, and the signal transmission and receiving module 7 is connected with the frequency converter 3 to control the explosion-proof counter-rotating axial flow fan 10 through the frequency converter 3, and the sensors arranged in the mine roadway monitor the wind speed, the wind pressure and the dangerous gases such as methane and carbon monoxide in the roadway, and the data transmission and monitoring are realized through the information data switch 5 and the signal transmission and receiving module 7, so that the mine ventilation monitoring function is realized, and the real-time adjustment and control can be realized according to the detection data, and the mine ventilation system is more reliable compared with the traditional mine ventilation system.

[0040] The lifting motor 16 drives the screw rod 17 to rotate when the lifting motor 16 operates, and the screw rod 17 drives the closing plate 15 to slide up and down in the embedded groove 13 when the screw rod 17 rotates, and the air duct 12 is closed and opened in the sliding process, the installed air pipe 9 can pass through the air duct 12 when the air duct 12 is opened, the lifting motor 16 is connected with the frequency converter 3, and the opening state of the air duct 12 is uploaded to the monitoring control through the information data switch 5 and the signal transmission and receiving module 7, so that the ventilation of another group of air pipes 9 can be adjusted in time when one group of air pipes 9 stops operating due to damage, and the main ventilation system control function is realized, and the use reliability of the main ventilation system is ensured.

[0041] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A mine ventilation system, characterised in that: Including the mine ground (1) and the remote control room for monitoring, the main ventilation assembly and the control cabinet (2) are arranged on the mine ground (1), the control cabinet (2) is provided with frequency converter starter (3), PLC information acquisition module (4), information data switch (5), information storage module (6) and signal transmission receiving module (7); The main ventilation assembly includes a ventilation mounting seat (8), two air ducts (12) are formed in the ventilation mounting seat (8), two air pipes (9) are installed at the openings of the two air ducts (12), and two anti-explosion counter-rotating axial flow fans (10) are arranged in the two air pipes (9); The anti-explosion counter-rotating axial flow fan (10) is started and controlled by the frequency converter starter (3), and the PLC information acquisition module (4) is used for collecting the running state data of the driving motor of the anti-explosion counter-rotating axial flow fan (10); Sensors for monitoring wind speed and dangerous gas are installed in each roadway in the mine, and the sensors are connected to the information data switch (5) through signal lines; The remote control room is provided with a serial server for reading device parameters.

2. A mine ventilation system according to claim 1 wherein: The two anti-explosion counter-rotating axial flow fans (10) arranged in the air pipe (9) are oppositely arranged, the other ends of the two air pipes (9) are provided with air guide openings (11), and the two air pipes (9) and the two air guide openings (11) are installed on the mine ground (1) through supporting pieces.

3. A mine ventilation system according to claim 1 wherein: A camera (19) for monitoring the running state of the main ventilation assembly is installed on the mine ground (1), and the camera (19) is connected to the information storage module (6) through a signal line.

4. A mine ventilation system according to claim 1 wherein: Two sets of closing assemblies for closing the two air ducts (12) respectively are symmetrically installed on the ventilation mounting seat (8), the closing assembly includes a fitting groove (13) and a fixed frame (14), the fitting groove (13) is formed in the ventilation mounting seat (8), and the fixed frame (14) is installed on the ventilation mounting seat (8) and located at the opening of the fitting groove (13).

5. A mine ventilation system according to claim 4 wherein: A closing plate (15) is slidably arranged in the fitting groove (13), and the closing plate (15) can be lifted upward into the fixed frame (14), and a threaded hole is formed in the upper side of the closing plate (15).

6. A mine ventilation system according to claim 4 wherein: A lifting motor (16) is installed on the fixed frame (14) through a fixing piece, a screw rod (17) is installed on the output shaft of the lifting motor (16) and penetrates the fixed frame (14), and the screw rod (17) is vertically arranged in the threaded hole formed in the upper side of the closing plate (15).

7. A mine ventilation system according to claim 1 wherein: An air outlet pipeline (18) is arranged below the ventilation mounting seat (8) and communicates with the two air ducts (12).

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