Automatic fire extinguishing and monitoring system for coal mine

Abstract

The invention discloses a coal mine automatic fire extinguishing and monitoring system which comprises an optical fiber and a first fire extinguishing mechanism which are installed along a conveyor belt, one end of the optical fiber is provided with an optical fiber temperature measuring host, and the first fire extinguishing mechanism is installed at the upper end of the conveyor belt. The first fire extinguishing mechanism comprises a plurality of first spray heads matched with the conveying belt, media sprayed out of the first spray heads can cover the conveying belt, the first fire extinguishing mechanism further comprises a water pipe, a plurality of flow dividing pipes are installed on the water pipe, the first spray heads are installed on the flow dividing pipes, and electric ball valves are installed between the water pipe and the flow dividing pipes. And the electric ball valve is used for detecting conditions in a coal mine and controlling a passage of the water pipe and the shunt pipe. Compared with the prior art, the automatic fire extinguishing and monitoring system for the coal mine can extinguish fire without manual intervention when a fire disaster occurs in the coal mine, the situation of potential safety hazards caused by manual intervention of fire extinguishing is reduced, and meanwhile the fire extinguishing efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mining equipment, and in particular relates to an automatic fire extinguishing and monitoring system for coal mines. Background Art

[0002] As the main energy source for industrial production, coal mines have an unparalleled status with other energy sources. The safe production of coal mines has always been placed at the top of coal mine production. With the continuous mining and extension of mines, goafs have become one of the important sources of danger in coal mines. In particular, once a fire breaks out in the goaf, it is difficult to detect and locate the ignition point because it is a closed and unmanned area, which makes rescue difficult and even causes gas and coal dust explosions. Therefore, doing a good job of safety monitoring in goafs is of great significance to reducing the loss of life and property.

[0003] Fires in goafs are generally caused by conveyor belts used to transport coal running off track, bearings lacking oil or damaged, rollers breaking, wiring aging, etc. After a conveyor belt catches fire, it is generally extinguished using sandboxes, sandbags, handheld fire extinguishers, etc. The efficiency of fire extinguishing is low, and people need to enter the goaf to perform fire extinguishing operations, which poses certain safety hazards.

[0004] In order to further reduce the occurrence of conveyor belt fires in goafs, conveyor belts are generally inspected manually and monitored by dedicated personnel. When a fire occurs, underground personnel are required to go to the scene for manual operation. Whether they can enter the fire extinguishing scene as soon as possible, whether the fire extinguishing equipment at the fire extinguishing scene is easy to use, and whether the workers can use the fire extinguishing equipment all depend on whether the daily management and training of the coal mine are in place. In addition, manual inspections are inefficient, with a large risk of missed inspections and great safety hazards.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The object of the present invention is to provide an automatic fire extinguishing and monitoring system for coal mines, which can solve the technical problems raised in the above-mentioned background technology.

[0007] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0008] An automatic fire extinguishing system for coal mines, comprising an optical fiber installed along a conveyor belt and a first fire extinguishing mechanism, an optical fiber temperature measuring host being installed at one end of the optical fiber, the first fire extinguishing mechanism being installed at the upper end of the conveyor belt, the first fire extinguishing mechanism comprising a plurality of first nozzles matching the conveyor belt, and the medium sprayed by the plurality of first nozzles being able to cover the conveyor belt.

[0009] In one or more embodiments of the present invention, the first fire extinguishing mechanism also includes a water pipe, a plurality of diversion pipes are installed on the water pipe, a plurality of the first nozzles are installed on the diversion pipes, an electric ball valve is installed between the water pipe and the diversion pipe, and the electric ball valve is used to detect the situation in the coal mine and control the passage of the water pipe and the diversion pipe.

[0010] In one or more embodiments of the present invention, a monitoring system matched with the optical fiber is included, and the monitoring system uses the properties of the optical fiber temperature measurement cable to monitor the temperature of the conveyor belt and realize the temperature prediction of the conveyor belt. The first fire extinguishing mechanism operates according to the temperature prediction result of the conveyor belt.

[0011] In one or more embodiments of the present invention, a bundled pipe is included, wherein the bundled pipe includes a first pipe, a second pipe, a third pipe and a fourth pipe are installed inside the first pipe, the second pipe is used to transport a fire extinguishing medium, the third pipe is used to transport concrete materials, and the fourth pipe is used to transport oxygen.

[0012] In one or more embodiments of the present invention, a plurality of connecting pipes are installed on the bundle pipe, a connecting plate is installed on one end of the connecting pipe away from the bundle pipe, a slide groove is provided on the connecting plate, a second fire extinguishing mechanism matching the slide groove is rotatably connected to the connecting plate, and the second fire extinguishing mechanism rotates along the slide groove to spray concrete material and form a temporary shelter.

[0013] In one or more embodiments of the present invention, a spring tube matching the fourth pipe is installed in the connecting plate, the spring tube and the fourth pipe are connected, a mask is installed at one end of the spring tube away from the fourth pipe, and a one-way valve is installed on the mask.

[0014] In one or more embodiments of the present invention, the second fire extinguishing mechanism includes a liquid exchange structure and a second nozzle, the upper end of the second nozzle is fixedly connected to a universal connector, the end of the universal connector away from the second nozzle is fixedly connected to an electric slider, the electric slider matches the slide groove, the liquid exchange structure includes a first shell and a second shell, the first shell and the second shell are rotatably connected, a second cavity is formed between the first shell and the second shell, a feed pipe is installed between the second cavity and the second nozzle, and the second cavity and the second pipeline are connected.

[0015] In one or more embodiments of the present invention, a plurality of third nozzles are fixedly connected along the outside of the connecting plate, a retaining ring is rotatably connected in the slide groove, the retaining ring separates the second cavity and forms a first cavity, the first cavity is connected to the third pipe, the second cavity is connected to the first pipe, and the third nozzle is used to spray the fire extinguishing medium in the second cavity.

[0016] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0017] A monitoring system for coal mines includes an automatic fire extinguishing system for coal mines, and also includes a vehicle body, an Internet of Things module, and a visualization module. A camera and a detector are installed on the vehicle body. The camera is used to detect the air quality in the coal mine, and the detector is used to photograph the situation in the coal mine. The Internet of Things module is used to upload data collected by the camera and the detector to the cloud. The visualization module downloads the data from the cloud and converts it into a visualized chart for display. The vehicle body is also provided with a card slot matching the bundle tube.

[0018] In one or more embodiments of the present invention, the vehicle body includes two chassis, pillars are slidably connected up and down in the two chassis, a cross bar is installed between the two pillars, the slot is opened in the middle of the cross bar, a plurality of extension racks are fixedly connected to the cross bar, the camera and the detector are installed on the extension rack, a storage tank is installed between the two chassis, and a plurality of fourth nozzles are installed on the storage tank.

[0019] Compared with the prior art, the automatic fire extinguishing and monitoring system for coal mines of the present invention can extinguish fires without manual intervention when fires occur in coal mines, thereby reducing safety hazards caused by manual intervention in fire extinguishing and improving fire extinguishing efficiency.

[0020] It can detect the situation under the coal mine in real time and can detect it during patrol. Compared with manual work, it does not require additional training, can improve the inspection efficiency, avoid missed inspections, and thus avoid safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of an automatic fire extinguishing system for a coal mine in one embodiment of the present invention Figure 1 ;

[0023] Figure 2 The structure of an automatic fire extinguishing system and monitoring system for coal mines in one embodiment of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 3 A schematic diagram of the structure of an automatic fire extinguishing system for a coal mine in one embodiment of the present invention Figure 2 ;

[0025] Figure 4 A partial cross-sectional view of an automatic fire extinguishing system for coal mines in one embodiment of the present invention Figure 1 ;

[0026] Figure 5 for Figure 4 Schematic diagram of the structure at A in the middle;

[0027] Figure 6 for Figure 4 Schematic diagram of the structure at B in the middle;

[0028] Figure 7 A schematic diagram of the structure of an automatic fire extinguishing system for a coal mine in one embodiment of the present invention Figure 3 ;

[0029] Figure 8 for Figure 7 Schematic diagram of the structure at C in the middle;

[0030] Fig. 9 It is a schematic structural diagram of a protective body in one embodiment of the present invention;

[0031] Fig.10 This is a schematic diagram of the structure of a coal mine monitoring system in one embodiment of the present invention;

[0032] Fig.11 The present invention is a usage status diagram of an automatic fire extinguishing system and a monitoring system for a coal mine in one embodiment of the present invention.

[0033] Description of main reference numerals:

[0034] 1. Water pipe; 2. Diverter pipe; 3. First nozzle; 4. Electric ball valve; 5. Conveyor belt; 6. Optical fiber; 7. Optical fiber temperature measurement host; 8. Bundle pipe; 801. First pipeline; 802. Second pipeline; 803. Third pipeline; 804. Fourth pipeline; 9. Connecting pipe; 10. Connecting plate; 1001. Slide; 11. Liquid exchange structure; 1101. First shell; 1102. Second shell; 1103. Retaining ring; 12. First cavity; 13. The second cavity; 14. Electric slider; 15. Universal connector; 16. Second nozzle; 1601. First nozzle; 1602. Second nozzle; 17. Feed pipe; 18. Third nozzle; 19. Spring tube; 20. Mask; 21. One-way valve; 22. Chassis; 23. Drive mechanism; 24. Support; 25. Crossbar; 2501. Card slot; 26. Extension rack; 27. Camera; 28. Detector; 29. ​​Storage tank; 2901. Fourth nozzle. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0036] An automatic fire extinguishing and monitoring system for coal mines in one embodiment of the present invention comprises an automatic fire extinguishing system for coal mines and a monitoring system for coal mines.

[0037] like Figures 1 to 9 As shown, the automatic fire extinguishing system for coal mines includes an optical fiber 6 arranged on a conveyor belt 5, and an optical fiber temperature measuring host 7 is arranged at one end of the optical fiber 6. The optical fiber 6 and the optical fiber temperature measuring host 7 cooperate to monitor the temperature of the entire conveyor belt 5 and realize real-time monitoring. The specific principle is: the temperature of a certain point of the conveyor belt 5 is obtained from the ratio of the anti-Stokes light signal and the anti-Stokes light signal intensity at any point in the optical fiber 6.

[0038] like Figure 1 As shown, a first fire extinguishing mechanism is installed at the upper end of the conveyor belt 5, and the first fire extinguishing mechanism can realize the fire extinguishing operation after the conveyor belt 5 catches fire, and can realize the cooling of the conveyor belt 5. The first fire extinguishing mechanism includes a water pipe 1, and a plurality of shunt pipes 2 are arranged on the water pipe 1. The shunt pipes 2 cover the upper end surface of the conveyor belt 5, and a plurality of first nozzles 3 are fixedly connected to the shunt pipes 2. An electric ball valve 4 is installed between the water pipe 1 and the shunt pipe 2, and the electric ball valve 4 is used to control the passage between the water pipe 1 and the shunt pipe 2. When the water pipe 1 detects that the temperature of the conveyor belt 5 is too high and the conveyor belt 5 needs to be cooled or extinguished, the medium transported in the water pipe 1 is output from the first nozzle 3, and the cooling or fire extinguishing operation of the conveyor belt 5 is realized.

[0039] Since the optical fiber 6 is plastic, the optical fiber 6 can completely cover the conveyor belt 5, and there is no detection blind area. Multiple shunt pipes 2 can completely cover the conveyor belt 5. The shunt pipes 2 and the optical fiber 6 cooperate to perform comprehensive monitoring, fire extinguishing and cooling operations on the conveyor belt 5. This avoids the situation where a fire in a monitoring blind area or a fire extinguishing blind area of ​​the conveyor belt 5 affects the progress of coal mining.

[0040] Specifically, Figure 1As shown, the optical fiber temperature measurement host 7 is specifically a flameproof and intrinsically safe distributed optical fiber temperature measurement host for mining. It uses a large-sized operable screen to facilitate on-site data display, operation and alarm, and can operate independently without connecting to a host computer. It also supports a variety of fire alarm modes such as early warning, temperature difference, positioning, and trend alarm lights. The alarm partition and alarm mode can be set arbitrarily, and it has the functions of self-diagnosis and self-repair. It can automatically identify the location and time of the break of the optical fiber 6, and the break of the optical fiber 6 does not affect the data demodulation of the device. The optical fiber 6 connected to the optical fiber temperature measurement host 7 is both a temperature sensor and a signal transmission channel. No other measurement or transmission devices are required, and the system configuration is simple.

[0041] Specifically, Figure 1 As shown, the electric ball valve 4 is specifically a mine intrinsically safe electric ball valve, which can complete the opening and closing of the ball valve within 5 seconds. The electric ball valve 4 is an execution unit to realize the normal operation of various functions of the device. The electric ball valve 4 is used in coal mines as a control device for water pipes 1 and shunt pipes 2. It has a two-piece high platform, an integrated circuit, and is composed of a control panel and an interface board light, and can be equipped with different types of sensors.

[0042] Furthermore, the electric ball valve 4 is equipped with a smoke sensor. When the sensor detects that the smoke value exceeds the standard, it outputs a high-level signal to control the electric ball valve to open and spray water to extinguish the fire through the nozzle. The automatic fire extinguishing device is connected to the switch after the 485 bus is connected and the signal is converted. The upper computer monitoring software is the monitoring software for the alarm fire extinguishing control device for the wellbore. Through this monitoring software, the number, open / close status and other information of each ball valve can be viewed in real time. At the same time, the ball valve action can be directly controlled through the monitoring software, and the parameters can be modified.

[0043] In this embodiment, the temperature of the conveyor belt 5 can be detected in real time through the cooperation of the optical fiber 6 and the optical fiber temperature measuring host 7, and the signal is transmitted through the optical fiber 6, and the signal is received by the optical fiber temperature measuring host 7. If the optical fiber 6 detects that the temperature of a certain place of the conveyor belt 5 is too high and a fire is about to start, the optical fiber temperature measuring host 7 controls the electric ball valve 4 matching the high-temperature position, and the medium in the water pipe 1 passes through the diverter pipe 2 and is sprayed out by the first nozzle 3, so as to achieve fire extinguishing or temperature reduction treatment at the high-temperature part of the conveyor belt 5.

[0044] The electric ball valve 4 also has the function of individual detection. When the electric ball valve 4 detects that the temperature in the current area is too high, or the smoke concentration, gas concentration and other parameters are abnormal, the electric ball valve 4 can also open the passage between the water pipe 1 and the diversion pipe 2 separately, so that the first nozzle 3 can spray the corresponding medium to prevent fire in the current detection area, thereby greatly improving the safety of the coal mine.

[0045] In another embodiment, when equipment in a coal mine fails, it is still necessary to manually enter the coal mine to inspect and repair the faulty equipment. If a fire occurs in the coal mine during the inspection and repair process, it is difficult for maintenance personnel to escape from the coal mine in the first place, which poses a certain safety hazard. Figure 2 to Figure 9 As shown, the automatic fire extinguishing system for coal mines also includes a bundle pipe 8, on which a plurality of second fire extinguishing mechanisms are installed. The second fire extinguishing mechanisms can not only realize fire extinguishing and cooling operations under the coal mine, but also build a temporary shelter to form a relatively safe space under the coal mine, which is convenient for the workers under the coal mine to run out or take a temporary rest or shelter. At the same time, a temporary sealing wall can be built under the coal mine to block and seal the fire source in the area with a larger fire, so as to avoid fire accidents caused by fire under the coal mine as much as possible.

[0046] Specifically, the bundle pipe 8 includes a first pipe 801, and a second pipe 802, a third pipe 803 and a fourth pipe 804 are arranged inside the first pipe 801, wherein the second pipe 802 is used to transport fire extinguishing medium, the third pipe 803 is used to transport concrete materials, and the fourth pipe 804 is used to transport oxygen.

[0047] like Figure 2 to Figure 9 As shown, the second fire extinguishing mechanism includes a connecting plate 10, and a connecting pipe 9 is installed between the connecting plate 10 and the bundle pipe 8, and the connecting pipe 9 is used to fix the connecting plate 10 and the bundle pipe 8 together. The connecting plate 10 is rotatably connected to a second nozzle 16, and a plurality of first nozzles 1601 are installed on the second nozzle 16. The medium in the second pipe 802 or the third pipe 803 can be sprayed out through the cooperation of the first nozzle 1601 and the second nozzle 16, so as to realize the fire extinguishing operation or the construction of the shelter.

[0048] Specifically, a liquid exchange structure 11 is fixedly connected to the connection plate 10, and the liquid exchange structure 11 includes a first shell 1101 and a second shell 1102, and the first shell 1101 and the second shell 1102 are rotatably connected, and the connection is sealed. The first shell 1101 and the second shell 1102 form a second cavity 13, and the interior of the second cavity 13 is rotatably connected with a retaining ring 1103 matching the second shell 1102, and the retaining ring 1103 separates the second cavity 13 and forms the first cavity 12. The first cavity 12 is connected to the third pipe 803, and the second cavity 13 is connected to the second pipe 802, that is, connecting pipes are installed between the first cavity 12 and the third pipe 803, and between the second cavity 13 and the second pipe 802.

[0049] like Figure 2 to Figure 9As shown, the upper end of the second nozzle 16 is fixedly connected with a universal connector 15, through which the angle of the second nozzle 16 can be adjusted arbitrarily, and the end of the universal connector 15 away from the second nozzle 16 is fixedly connected with an electric slider 14. A slide groove 1001 matching the electric slider 14 is provided on the connection plate 10, and the electric slider 14 slides in the slide groove 1001 and performs a circular motion. A feed pipe 17 is installed between the second nozzle 16 and the second shell 1102, one end of the feed pipe 17 is connected to the second nozzle 16, and the other end is connected to the first cavity 12 and the second cavity 13, and the passage between the optical fiber temperature measurement host 7 and the first cavity 12 or the second cavity 13 is controlled by a valve. That is, the second nozzle 16 can spray out both fire extinguishing medium and concrete material.

[0050] Specifically, the feed pipe 17 is a pipe with a certain hardness. When the second nozzle 16 slides along the slide groove 1001, it can rotate with the feed pipe 17, and the feed pipe 17 rotates with the second shell 1102 on the retaining ring 1103. In this way, no matter how the second nozzle 16 rotates, it will not cause the pipeline to be entangled.

[0051] Furthermore, Figure 2 to Figure 9 As shown, the second nozzle 16 is also fixedly connected to the second nozzle 16, and the second nozzle 1602 is located between the two first nozzles 1601. The second nozzle 1602 can simultaneously spray different media from the first nozzle 1601. That is, the first nozzle 1601 can spray concrete material, and the second nozzle 1602 sprays fire extinguishing medium. The concrete material sprayed by the first nozzle 1601 can form a temporary shelter, which is specifically composed of two layers of protective bodies, and a filling cavity is formed between the two layers of protective bodies. The fire extinguishing agent sprayed by the second nozzle 1602 can be located in the filling cavity, so as to improve the protection effect of the shelter.

[0052] Generally, the shelter is in the shape of a tube with a cover, and a person can stand or squat inside the shelter.

[0053] like Figure 2 to Figure 9As shown, a spring tube 19 matching the fourth pipeline 804 is installed in the connection plate 10, the spring tube 19 and the fourth pipeline 804 are connected, the spring tube 19 can be stretched, and a mask 20 is installed at one end of the spring tube 19 away from the fourth pipeline 804. The oxygen in the fourth pipeline 804 can be inhaled through the mask 20, and a one-way valve 21 is provided on the mask 20, and the gas exhaled by the person can be discharged through the one-way valve 21. Through the coordination of the spring tube 19, the mask 20 and the one-way valve 21, people can continue to breathe in an oxygen-deficient environment or an environment that is not suitable for breathing. For example, in an environment where firefighting continues, a shelter is built through the second nozzle 16, and the mask 20 is provided to the person in the shelter, so that the person can continue to breathe in the shelter, and the outside of the shelter is all fire-extinguishing medium. It can not only ensure the safety of people working in coal mines when extinguishing fires, but also ensure that the efficiency of fire extinguishing will not be affected by the workers in coal mines, thereby avoiding the situation where fire extinguishing is delayed due to the failure of people working in coal mines to evacuate, or avoiding the situation where fire extinguishing cannot be carried out with all efforts in the first time, thus leading to increased losses.

[0054] When the shelter is built, the shelter is printed out by 3D printing technology, and the concrete material is sprayed out through the second nozzle 16. The construction of the shelter can be completed in 1 to 2 minutes. When the shelter is built, it is generally started by a person pulling the spring tube 19. When the spring tube 19 is pulled to a certain extent, the second nozzle 16 detects the position of the person and rotates along the slide 1001. In this process, concrete materials are sprayed on the outer edge of the person, and the high temperature environment of the fire under the coal mine is used to achieve rapid drying of the concrete materials, so as to quickly build the shelter.

[0055] like Figures 4 to 6 As shown, a plurality of third nozzles 18 are fixedly connected to the outer wall of the second shell 1102. The third nozzles 18 are communicated with the second cavity 13. The fire extinguishing medium can be sprayed outward through the third nozzles 18. The fire extinguishing medium finally contacts the outer surface of the shelter. The fire extinguishing medium protects the shelter while extinguishing the fire.

[0056] In this embodiment, the working principle of the automatic fire extinguishing system for coal mines is as follows: if a fire occurs in a coal mine and direct fire extinguishing is required, the optical fiber 6 is first used to determine the location of the fire source, and the second nozzle 16 at the corresponding position is activated according to the location of the fire source. The second nozzle 16 rotates and faces the fire source. The fire extinguishing medium in the second pipeline 802 passes through the connecting pipeline, the second cavity 13, the feed pipe 17, and the second nozzle 16 in sequence, and is finally sprayed onto the fire source from the first nozzle 1601 or the second nozzle 1602 to achieve the fire extinguishing operation.

[0057] like Fig.11As shown, if the location of the fire is located in the goaf, and at this time, there are maintenance personnel in the goaf to maintain the equipment, the maintenance personnel cannot escape from the fire scene in the first time. If the fire is not extinguished urgently, it is very likely to cause greater losses. The maintenance personnel can pull the spring tube 19 and wear the mask 20 on the face. Oxygen can be inhaled in the mask 20, and the gas exhaled by the maintenance personnel is discharged by the one-way valve 21. In the process of pulling the spring tube 19, the second nozzle 16 detects the location of the maintenance personnel, and transports the concrete material from the third pipeline 803 to the connecting pipeline, the first cavity 12, the feed pipe 17, and the second nozzle 16 in sequence, and finally sprays it out through the two first nozzles 1601 to form a shelter outside the maintenance personnel. The shelter can isolate a certain temperature and provide shelter for the maintenance personnel to avoid the impact of other fire extinguishing media such as nitrogen and water released during fire extinguishing operations.

[0058] In another embodiment, if Figure 2 , Fig.10 As shown, the coal mine monitoring system includes a vehicle body, on which a camera 27 and a detector 28 are installed. The vehicle body can move back and forth in the coal mine, and can realize mobile monitoring under the coal mine in cooperation with the camera 27 and the detector 28. The coal mine monitoring system also includes an Internet of Things module and a visualization module. The Internet of Things module uploads the data collected by the camera 27 and the detector 28 to the cloud, and the visualization module calls the data in the cloud and converts it into a visualized chart for display on the display screen. The visualization module can also predict dangers based on the called data.

[0059] like Figure 2 , Fig.10 As shown, a slot 2501 is provided on the vehicle body, and the slot 2501 matches the bundle tube 8. When the bundle tube 8 is not installed in the coal mine, one end of the bundle tube 8 is placed on the slot 2501. The vehicle body pulls one end of the bundle tube 8, which greatly saves the manpower consumed in installing the bundle tube 8. When the second fire extinguishing mechanism is installed on the bundle tube 8, the installation position is also fixed. After the second fire extinguishing mechanism is installed, the vehicle body continues to move.

[0060] like Fig.10As shown, the vehicle body includes a chassis 22, and a driving mechanism 23 is fixedly connected to the lower end of the chassis 22, and the chassis 22 can be driven to move by the driving mechanism 23. The number of chassis 22 is generally two, and a support 24 is slidably connected to the chassis 22, and the support 24 slides up and down. The height of the vehicle body can be adjusted by the support 24 that slides up and down. A crossbar 25 is detachably installed between the two supports 24, and a slot 2501 is provided on the crossbar 25. In actual use, crossbars 25 of different lengths can be installed according to the width of the coal mine, so that the vehicle body can enter the coal mine. Several expansion racks 26 are also fixedly connected to the crossbar 25, and other detection equipment can also be installed on the expansion rack 26. The expansion rack 26 is an expansion structure that integrates a fixed bracket and a data connection bracket. Other detection equipment is installed on the expansion rack 26, and then the data of the vehicle body and the detection equipment are interconnected through a data line, which can save the time required for data docking.

[0061] like Fig.10 As shown, a storage tank 29 is installed between the two chassis 22, and the storage tank 29 contains a fire extinguishing medium. A plurality of fourth nozzles 2901 are provided on the storage tank 29. During the patrol process, if the vehicle body finds a high temperature, the fire extinguishing medium in the storage tank 29 can be sprayed out through the fourth nozzle 2901 to extinguish the fire or cool down the coal mine. By carrying the storage tank 29 on the vehicle body and cooperating with the detection equipment, the vehicle body can be moved to a position where the detection equipment is not installed to detect the current area. For some positions where it is unnecessary to install the detection equipment, the coal mine monitoring system can also be used to detect, which is conducive to improving the safety of the coal mine and avoiding the situation where a certain position is missed and causes a disaster.

[0062] In this embodiment, the working principle of the coal mine monitoring system is: the chassis 22 is driven to move by the driving mechanism 23, and the vehicle body can move in the coal mine. During the movement, the detection equipment on the vehicle body realizes the detection under the coal mine, and can control the high temperature or other conditions under the coal mine, thereby improving the safety of the workers and work equipment in the coal mine.

[0063] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic fire extinguishing system for coal mines, characterized in that: include: An optical fiber installed along the conveyor belt, one end of which is equipped with an optical fiber temperature measurement host; a first fire extinguishing mechanism, wherein the first fire extinguishing mechanism is installed at an upper end of the conveyor belt; The first fire extinguishing mechanism includes a plurality of first nozzles matched with the conveyor belt, and the medium sprayed by the plurality of first nozzles can cover the conveyor belt.

2. The automatic fire extinguishing system for coal mines according to claim 1, characterized in that: The first fire extinguishing mechanism further comprises a water pipe, a plurality of diversion pipes are installed on the water pipe, and a plurality of the first nozzles are installed on the diversion pipes; An electric ball valve is installed between the water pipe and the shunt pipe, and the electric ball valve is used to detect the situation in the coal mine and control the passage of the water pipe and the shunt pipe.

3. An automatic fire extinguishing system for coal mines according to claim 1 or 2, characterized in that: It includes a monitoring system matched with the optical fiber, which uses the properties of the optical fiber temperature measurement cable to monitor the temperature of the conveyor belt and realize the temperature prediction of the conveyor belt. The first fire extinguishing mechanism operates according to the temperature prediction result of the conveyor belt.

4. The automatic fire extinguishing system for coal mine according to claim 1, characterized in that: The bundled pipe comprises a first pipe, a second pipe, a third pipe and a fourth pipe are installed inside the first pipe, the second pipe is used to transport fire extinguishing medium, the third pipe is used to transport concrete materials, and the fourth pipe is used to transport oxygen.

5. The automatic fire extinguishing system for coal mines according to claim 4, characterized in that: A plurality of connecting tubes are installed on the bundle tube, and a connecting plate is installed at one end of the connecting tube away from the bundle tube; A slide groove is provided on the connection plate, and a second fire extinguishing mechanism matching the slide groove is rotatably connected to the connection plate. The second fire extinguishing mechanism rotates along the slide groove to spray concrete materials and form a temporary shelter.

6. The automatic fire extinguishing system for coal mines according to claim 5, characterized in that: A spring tube matching the fourth pipeline is installed in the connection disk, the spring tube is communicated with the fourth pipeline, a mask is installed at one end of the spring tube away from the fourth pipeline, and a one-way valve is installed on the mask.

7. The automatic fire extinguishing system for coal mines according to claim 5, characterized in that: The second fire extinguishing mechanism comprises a liquid exchange structure and a second nozzle, the upper end of the second nozzle is fixedly connected to a universal connector, an end of the universal connector away from the second nozzle is fixedly connected to an electric slider, and the electric slider matches the slide groove; The liquid exchange structure includes a first shell and a second shell, the first shell and the second shell are rotatably connected, a second cavity is formed between the first shell and the second shell, a feed pipe is installed between the second cavity and the second nozzle, and the second cavity is connected to the second pipeline.

8. The automatic fire extinguishing system for coal mines according to claim 7, characterized in that: A plurality of third nozzles are fixedly connected along the outside of the connecting plate, and a retaining ring is rotatably connected in the slide groove. The retaining ring separates the second cavity and forms a first cavity. The first cavity is connected to the third pipe, and the second cavity is connected to the first pipe. The third nozzle is used to spray out the fire extinguishing medium in the second cavity.

9. A monitoring system for coal mines, characterized in that: The automatic fire extinguishing system for coal mines according to any one of claims 1 to 8 further comprises: A vehicle body, wherein a camera and a detector are installed on the vehicle body, wherein the camera is used to detect the air quality in the coal mine, and the detector is used to photograph the situation in the coal mine; An Internet of Things module, which is used to upload data collected by the camera and the detector to the cloud; A visualization module, which downloads data from the cloud and converts it into a visual chart for display; The vehicle body is also provided with a clamping slot matching the bundle tube.

10. A coal mine monitoring system according to claim 9, characterized in that: The vehicle body comprises two chassis, pillars are slidably connected in the two chassis, a cross bar is installed between the two pillars, and the card slot is provided in the middle of the cross bar; A plurality of extension racks are fixedly connected to the crossbar, and the cameras and detectors are both installed on the extension racks; A storage tank is installed between the two chassis, and a plurality of fourth nozzles are installed on the storage tank.

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