Mining fire prevention and extinguishing optical fiber monitoring system

Abstract

The invention discloses a mining fire prevention and extinguishing optical fiber monitoring system, which comprises an industrial control end, and further comprises four groups of execution ends, a temperature measurement host, a transmission belt dynamic monitoring assembly and a carrier roller end dynamic fire extinguishing assembly, and is characterized in that the four groups of execution ends are used for dividing a belt conveyor monitoring surface area into four groups of subareas; an industrial control end sends execution signals to a conveyor belt dynamic monitoring assembly and a carrier roller end dynamic fire extinguishing assembly which are arranged corresponding to a first subarea, a second subarea, a third subarea and a fourth subarea, so that the conveyor belt dynamic monitoring assembly quickly and accurately approves an abnormality generation position approved by an execution end; according to the approved state of the conveying belt dynamic monitoring assembly, the carrier roller end dynamic fire extinguishing assembly is driven by the industrial control end to move to the abnormal position of the belt conveyor carrier roller of the conveying belt dynamic monitoring assembly, and the abnormal position of the belt conveyor carrier roller is subjected to accurate single-point fire extinguishing treatment through the carrier roller end dynamic fire extinguishing assembly. And fire increase caused by monitoring errors is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of fire monitoring, and in particular relates to a mine fire prevention and extinguishing optical fiber monitoring system. Background Art

[0002] During long-term transportation, belt conveyors are prone to roller failure or belt deviation when the carrying pressure is high. When this happens, the friction between the rollers and the belts increases, and local heating is more likely to occur. Local fires are prone to occur when unsupervised, causing the surrounding environment of the belt conveyor to burn and produce toxic gases such as carbon monoxide. Once this gas flows into the underground work site, it will directly threaten the life safety of underground operators. Although the existing monitoring system can timely reflect the occurrence of this phenomenon by setting up a smoke alarm, it is impossible to quickly obtain the combustion point, especially when multiple abnormal friction points of the belt conveyor cause fire. Due to its singleness, traditional monitoring methods cannot quickly verify and eliminate the fire, and are prone to monitoring errors. Therefore, its monitoring effect cannot meet expectations. To this end, we propose a mine fire prevention and extinguishing optical fiber monitoring system. Summary of the invention

[0003] The present invention provides a mine fire prevention and extinguishing optical fiber monitoring system to solve the problems raised in the background technology.

[0004] The present invention provides the following technical solutions: a mine fire prevention and extinguishing optical fiber monitoring system, including an industrial control end, an execution end, a temperature measuring host, a conveyor belt dynamic monitoring component, and a roller end dynamic fire extinguishing component, the number of the execution ends is four groups, and the four groups of the execution ends are used to divide the belt conveyor monitoring surface area into four groups of partitions, including a first partition, a second partition, a third partition, and a fourth partition, the first partition, the second partition, the third partition, and the fourth partition are all provided with independent conveyor belt dynamic monitoring components and roller end dynamic fire extinguishing components, and the temperature measuring host is used for continuous distributed measurement of temperature changes of different positions of the optical fiber around the belt conveyor;

[0005] The execution end is composed of a programmable control box, a monitoring sensor unit and an electric ball valve. The programmable control box is used to obtain the data acquisition signal of the monitoring sensor unit, and convert the acquired data into an Ethernet signal through an information transmission interface and upload it to the industrial control end. The industrial control end activates the electric ball valve to output water to the abnormal end measured by the monitoring sensor unit according to the monitoring data;

[0006] When the monitoring data fed back by the execution end received by the industrial control end exceeds the preset value, the industrial control end sends an execution signal to the conveyor belt dynamic monitoring component and the roller end dynamic fire extinguishing component arranged in the corresponding first partition, second partition, third partition and fourth partition, and the conveyor belt dynamic monitoring component is used to accurately verify the abnormality generating position confirmed by the execution end, and drive the roller end dynamic fire extinguishing component to move to the belt conveyor roller position that is still abnormal after the conveyor belt dynamic monitoring component verifies, and the abnormal part of the belt conveyor roller is extinguished by the roller end dynamic fire extinguishing component.

[0007] A further improvement of the present invention is that the dynamic monitoring component of the conveyor belt is arranged on the rollers along the motor in the belt conveyor, and the dynamic monitoring component of the conveyor belt includes a flame sensor, a smoke sensor and a CO sensor. The flame sensor, the smoke sensor and the CO sensor are respectively used to monitor whether open flames are generated by the rollers along the motor in the belt conveyor, whether smoke is generated around the rollers along the motor in the belt conveyor, and whether carbon monoxide exceeds the standard around the rollers along the motor in the belt conveyor.

[0008] A further improvement of the present invention is that the dynamic fire extinguishing assembly at the roller end includes a dynamic displacement drive motor, a contact-pressure dry powder fire extinguishing mechanism and a spraying action actuator, the contact-pressure dry powder fire extinguishing mechanism is fixedly connected to the dynamic displacement drive motor, the output end of the spraying action actuator is connected to the starting end of the contact-pressure dry powder fire extinguishing mechanism, the first partition, the second partition, the third partition and the fourth partition are all provided with tracks for the dynamic displacement drive motor to move and limit, and the dynamic displacement drive motor is used to drive the contact-pressure dry powder fire extinguishing mechanism along the track to reach the abnormal point monitored by the dynamic monitoring assembly of the conveyor belt.

[0009] A further improvement of the present invention is that the dynamic fire extinguishing component at the roller end also includes a belt-end thermal imaging detector, which is connected to the industrial control end signal. After the spraying action actuator triggers the activation signal of the contact-pressure dry powder fire extinguishing mechanism, the belt-end thermal imaging detector obtains the activation signal of the contact-pressure dry powder fire extinguishing mechanism and synchronously turns on the electrical path, and feeds back the on-site thermal imaging image through the belt-end thermal imaging detector, thereby re-confirming the location of the fire point.

[0010] A further improvement of the present invention is that the industrial control end includes an industrial computer, a display, and a core switch. The core switch is connected to the temperature measuring host and the programmable control box in the execution end through a signal transmission interface. The core switch obtains information parameters output by the temperature measuring host and the programmable control box in the execution end, and uploads the information parameters to the industrial computer. The industrial computer outputs water to the abnormal measurement end based on the abnormal parameters monitored by the execution end and the temperature measuring host.

[0011] Compared with the prior art, the beneficial effect of the present invention is as follows: by setting four groups of execution ends, the belt conveyor monitoring surface is divided into four groups of partitions. After the setting, after the monitoring data fed back by the execution end exceeds the preset value, the industrial control end sends an execution signal to the conveyor belt dynamic monitoring component and the roller end dynamic fire extinguishing component set in the corresponding first partition, the second partition, the third partition and the fourth partition, so that the conveyor belt dynamic monitoring component can quickly and accurately verify the abnormal location confirmed by the execution end, confirm whether the rollers along the motor generate open flames, whether smoke is generated around the rollers along the motor in the belt conveyor, and whether the carbon monoxide around the rollers along the motor in the belt conveyor exceeds the standard, and according to the approval status of the conveyor belt dynamic monitoring component, the industrial control end drives the roller end dynamic fire extinguishing component to move to the belt conveyor roller position where the conveyor belt dynamic monitoring component is abnormal, and the roller end dynamic fire extinguishing component is used to perform accurate single-point fire extinguishing treatment on the abnormal part of the belt conveyor roller, so as to avoid the increase of fire due to monitoring errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a system composition diagram of the present invention;

[0013] Figure 2 This is a composition diagram of the temperature measuring host, the conveyor belt dynamic monitoring component and the roller end dynamic fire extinguishing component in the present invention.

[0014] In the figure: 1. Industrial control end; 2. Execution end; 3. Temperature measurement host; 4. Conveyor belt dynamic monitoring component; 41. Flame sensor; 42. Smoke sensor; 43. CO sensor; 5. Roller end dynamic fire extinguishing component; 51. Dynamic displacement drive motor; 52. Contact pressure dry powder fire extinguishing mechanism; 53. Spraying action actuator; 54. Belt end thermal imaging detector. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with specific embodiments, wherein the accompanying drawings are only used for exemplary descriptions, and are only schematic diagrams rather than physical drawings, and cannot be understood as limiting the present patent. In order to better illustrate the specific embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0016] Example

[0017] See also Figure 1-Figure 2A mine fire prevention and extinguishing optical fiber monitoring system includes an industrial control terminal 1, an execution terminal 2, a temperature measuring host 3, a conveyor belt dynamic monitoring component 4, and a roller end dynamic fire extinguishing component 5. The number of the execution terminals 2 is four groups, and the four groups of execution terminals 2 are used to divide the belt conveyor monitoring surface into four groups of partitions, including a first partition, a second partition, a third partition, and a fourth partition. The first partition, the second partition, the third partition, and the fourth partition are all provided with independent conveyor belt dynamic monitoring components 4 and roller end dynamic fire extinguishing components 5. The temperature measuring host 3 is used for continuous distributed measurement of temperature changes at different positions of the optical fiber around the belt conveyor;

[0018] In an optional implementation of this embodiment, the execution end 2 is composed of a programmable control box, a monitoring sensor unit and an electric ball valve. The programmable control box is used to obtain the data acquisition signal of the monitoring sensor unit, and convert the acquired data into an Ethernet signal through the information transmission interface and upload it to the industrial control end 1. The industrial control end 1 activates the electric ball valve to output water to the abnormal end measured by the monitoring sensor unit according to the monitoring data;

[0019] In an optional implementation of the present embodiment, after the monitoring data fed back by the execution end 2 received by the industrial control end 1 exceeds the preset value, an execution signal is sent to the conveyor belt dynamic monitoring component 4 and the roller end dynamic fire extinguishing component 5 arranged in the corresponding first partition, second partition, third partition and fourth partition, and the conveyor belt dynamic monitoring component 4 is used to accurately verify the abnormal position confirmed by the execution end 2, and drive the roller end dynamic fire extinguishing component 5 to move to the belt conveyor roller position that is still abnormal after the conveyor belt dynamic monitoring component 4 verifies, and the roller end dynamic fire extinguishing component 5 is used to extinguish the abnormal part of the belt conveyor roller.

[0020] In this embodiment, in order to solve the problem that the existing monitoring system can timely reflect the state of the phenomenon by setting the monitoring means of the smoke alarm, but cannot quickly obtain the combustion point, especially when the fire occurs at multiple abnormal friction points of the belt conveyor, the traditional monitoring means cannot quickly verify and eliminate the fire due to its singleness, and is prone to monitoring errors. The present invention proposes a mine fire prevention and extinguishing optical fiber monitoring system, which divides the belt conveyor monitoring surface into four groups of partitions by setting four groups of execution terminals 2. After the monitoring data fed back by the execution terminal 2 exceeds the preset value, the industrial control terminal 1 sends a signal to the corresponding first partition, second partition, and second partition. The conveyor belt dynamic monitoring component 4 and the roller end dynamic fire extinguishing component 5 set in the first zone, the third zone and the fourth zone send an execution signal, so that the conveyor belt dynamic monitoring component 4 can quickly and accurately verify the abnormal location confirmed by the execution end 2, and according to the verification status of the conveyor belt dynamic monitoring component 4, the roller end dynamic fire extinguishing component 5 is driven by the industrial control end 1 to move to the belt conveyor roller position where the conveyor belt dynamic monitoring component 4 is abnormal, and the roller end dynamic fire extinguishing component 5 is used to perform accurate single-point fire extinguishing treatment on the abnormal part of the belt conveyor roller, thereby solving the technical defects caused by monitoring errors.

[0021] In this embodiment, the temperature measuring host 3 uses a distributed optical fiber temperature measuring host. After the detection optical fiber is arranged to the measuring point of the belt conveyor, continuous distributed measurement is realized according to the temperature changes at different positions of the belt conveyor. That is, after the temperature change at a certain operating point of the belt conveyor exceeds the pre-recorded abnormal trigger threshold, it is converted into an Ethernet signal through the information transmission interface and uploaded to the industrial control terminal 1. At this time, the industrial control terminal 1 sends a read signal to the programmable control box in the execution terminal 2, and the programmable control box in the execution terminal 2 uploads the smoke generation signal obtained by the monitoring sensor unit (using a smoke signal sensor) to the industrial control terminal 1. When the industrial control terminal 1 obtains abnormal data on both the temperature measuring host 3 and the monitoring sensor unit in the execution terminal 2, it sends a conduction signal to the electric ball valve in the execution terminal 2, and opens the pipeline spray port through the electric ball valve to realize large-scale fire extinguishing.

[0022] In an optional implementation of the present embodiment, a conveyor belt dynamic monitoring component 4 is arranged on the rollers along the motor in the belt conveyor, and the conveyor belt dynamic monitoring component 4 includes a flame sensor 41, a smoke sensor 42 and a CO sensor 43. The flame sensor 41, the smoke sensor 42 and the CO sensor 43 are respectively used to monitor whether open flames are generated on the rollers along the motor in the belt conveyor, whether smoke is generated around the rollers along the motor in the belt conveyor, and whether carbon monoxide exceeds the standard around the rollers along the motor in the belt conveyor.

[0023] In this embodiment, in order to ensure the rapid finding of fire points in each section of the belt conveyor, the present invention sets a conveyor belt dynamic monitoring component 4, which includes a flame sensor 41, a smoke sensor 42 and a CO sensor 43. The flame sensor 41, the smoke sensor 42 and the CO sensor 43, wherein the flame sensor 41 is respectively arranged on the head and tail equipment of the belt conveyor and the rollers along the motor, and the smoke sensor 42 and the CO sensor 43 are arranged at the connection between the rollers along the motor and the belt. The above-mentioned sensor structure is used to monitor whether the rollers along the motor in the belt conveyor generate open flames, whether smoke is generated around the rollers along the motor in the belt conveyor, and whether the carbon monoxide around the rollers along the motor in the belt conveyor exceeds the standard, thereby realizing distributed monitoring and avoiding monitoring errors caused by fires at multiple points that affect subsequent fire extinguishing.

[0024] In an optional implementation of the present embodiment, the dynamic fire extinguishing assembly 5 at the roller end includes a dynamic displacement drive motor 51, a contact-pressure dry powder fire extinguishing mechanism 52 and a spraying action actuator 53. The contact-pressure dry powder fire extinguishing mechanism 52 is fixedly connected to the dynamic displacement drive motor 51, and the output end of the spraying action actuator 53 is connected to the starting end of the contact-pressure dry powder fire extinguishing mechanism 52. The first partition, the second partition, the third partition and the fourth partition are all provided with tracks for the dynamic displacement drive motor 51 to move and limit. The dynamic displacement drive motor 51 is used to drive the contact-pressure dry powder fire extinguishing mechanism 52 along the track to reach the abnormal point monitored by the dynamic monitoring assembly 4 of the conveyor belt.

[0025] In this embodiment, the dynamic displacement drive motor 51 is used to drive the contact-pressure dry powder fire extinguishing mechanism 52 and the spraying action actuator 53 to move along the tracks set in the first partition, the second partition, the third partition and the fourth partition separated by the belt conveyor, that is, after the dynamic displacement drive motor 51 obtains the abnormal signals fed back by the flame sensors 41, the smoke sensors 42 and the CO sensors 43 at each monitoring point, it drives the contact-pressure dry powder fire extinguishing mechanism 52 and the spraying action actuator 53 to move to the corresponding abnormal point, and then the spraying action actuator 53 applies pressure to the spraying end of the contact-pressure dry powder fire extinguishing mechanism 52, so that the contact-pressure dry powder fire extinguishing mechanism 52 sprays dry powder to clean the abnormal points monitored by the corresponding flame sensors 41, the smoke sensors 42 and the CO sensors 43.

[0026] In an optional implementation of the present embodiment, the roller-end dynamic fire extinguishing assembly 5 also includes a belt-end thermal imaging detector 54, which is connected to the industrial control end 1 by signal. After the spraying action actuator 53 triggers the activation signal of the contact-pressure dry powder fire extinguishing mechanism 52, the belt-end thermal imaging detector 54 obtains the activation signal of the contact-pressure dry powder fire extinguishing mechanism 52 and synchronously turns on the electrical path, and feeds back the on-site thermal imaging image through the belt-end thermal imaging detector 54, thereby re-confirming the location of the fire point.

[0027] In this embodiment, the belt end thermal imaging detector 54 uses a KBA12 mining intrinsically safe thermal imaging camera to detect the location of the fire point.

[0028] In an optional implementation of this embodiment, the industrial control end 1 includes an industrial computer, a display, and a core switch. The core switch is connected to the temperature measuring host 3 and the programmable control box in the execution end 2 through a signal transmission interface. The core switch obtains the information parameters output by the temperature measuring host 3 and the programmable control box in the execution end 2, and uploads the information parameters to the industrial computer. The industrial computer outputs the water source to the abnormal measurement end according to the abnormal parameters monitored by the execution end 2 and the temperature measuring host 3. After the programmable control box in the execution end 2 obtains the monitoring data of the monitoring sensor unit, it is uploaded to the core switch through the signal transmission interface. The core switch is used to convert the signal transmission interface RS485 signal into an Ethernet signal, and output it to the industrial computer through the Ethernet or optical port, and it is displayed through the display after being encoded by the industrial computer.

[0029] The working principle and use method of the present invention are as follows: by setting four groups of execution terminals 2, the belt conveyor monitoring surface area is divided into four groups of partitions. After the setting, when the monitoring data fed back by the execution terminal 2 exceeds the preset value, the industrial control terminal 1 sends an execution signal to the conveyor belt dynamic monitoring component 4 and the roller end dynamic fire extinguishing component 5 set in the corresponding first partition, second partition, third partition and fourth partition, so that the flame sensor 41, the smoke sensor 42 and the CO sensor 43 can quickly and accurately verify the abnormality generation position verified by the execution terminal 2, and confirm whether the rollers along the motor generate open flames and whether smoke is generated around the rollers along the motor in the belt conveyor. , whether the carbon monoxide on the side of the roller along the motor in the belt conveyor exceeds the standard. If it exceeds the standard, the dynamic displacement drive motor 51 obtains the abnormal signals fed back by the flame sensors 41, smoke sensors 42 and CO sensors 43 at each monitoring point, and drives the contact-pressure dry powder fire extinguishing mechanism 52 and the spraying action actuator 53 to move to the corresponding abnormal point. Then the spraying action actuator 53 applies pressure to the spraying end of the contact-pressure dry powder fire extinguishing mechanism 52, so that the contact-pressure dry powder fire extinguishing mechanism 52 sprays dry powder to clean the corresponding abnormal points monitored by the flame sensors 41, smoke sensors 42 and CO sensors 43, so as to avoid the increase of fire due to monitoring errors.

[0030] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A mine fire prevention and extinguishing optical fiber monitoring system, comprising an industrial control terminal (1), characterized in that: It also includes an execution end (2), a temperature measuring host (3), a conveyor belt dynamic monitoring component (4) and a roller end dynamic fire extinguishing component (5), wherein the execution end (2) is in four groups, and the four groups of the execution end (2) are used to divide the belt conveyor monitoring surface into four groups of partitions, including a first partition, a second partition, a third partition and a fourth partition, wherein the first partition, the second partition, the third partition and the fourth partition are each provided with an independent conveyor belt dynamic monitoring component (4) and a roller end dynamic fire extinguishing component (5), and the temperature measuring host (3) is used to continuously and distributedly measure the temperature changes of different positions of the optical fiber around the belt conveyor; The execution end (2) is composed of a programmable control box, a monitoring sensor unit and an electric ball valve. The programmable control box is used to obtain a data acquisition signal from the monitoring sensor unit, and convert the acquired data into an Ethernet signal through an information transmission interface and upload it to the industrial control end (1). The industrial control end (1) activates the electric ball valve to output water to the abnormal end measured by the monitoring sensor unit according to the monitoring data. When the monitoring data fed back by the execution end (2) received by the industrial control end (1) exceeds a preset value, the industrial control end (1) sends an execution signal to the conveyor belt dynamic monitoring component (4) and the roller end dynamic fire extinguishing component (5) arranged in the corresponding first partition, second partition, third partition and fourth partition, and the conveyor belt dynamic monitoring component (4) is used to accurately verify the abnormal position confirmed by the execution end (2), and drive the roller end dynamic fire extinguishing component (5) to move to the belt conveyor roller position that is still abnormal after the conveyor belt dynamic monitoring component (4) verifies, and extinguishes the abnormal part of the belt conveyor roller through the roller end dynamic fire extinguishing component (5).

2. A mine fire prevention and extinguishing optical fiber monitoring system according to claim 1, characterized in that: The conveyor belt dynamic monitoring component (4) is arranged on the rollers along the motor in the belt conveyor, and the conveyor belt dynamic monitoring component (4) comprises a flame sensor (41), a smoke sensor (42) and a CO sensor (43), wherein the flame sensor (41), the smoke sensor (42) and the CO sensor (43) are respectively used to monitor whether the rollers along the motor in the belt conveyor generate open flames, whether smoke is generated around the rollers along the motor in the belt conveyor, and whether the carbon monoxide around the rollers along the motor in the belt conveyor exceeds the standard.

3. A mine fire prevention and extinguishing optical fiber monitoring system according to claim 1, characterized in that: The roller end dynamic fire extinguishing component (5) comprises a dynamic displacement drive motor (51), a contact pressure dry powder fire extinguishing mechanism (52) and a spraying action actuator (53); the contact pressure dry powder fire extinguishing mechanism (52) is fixedly connected to the dynamic displacement drive motor (51); the output end of the spraying action actuator (53) is connected to the starting end of the contact pressure dry powder fire extinguishing mechanism (52); the first partition, the second partition, the third partition and the fourth partition are all provided with tracks for the dynamic displacement drive motor (51) to move and limit; the dynamic displacement drive motor (51) is used to drive the contact pressure dry powder fire extinguishing mechanism (52) along the track to reach the abnormal point monitored by the conveyor belt dynamic monitoring component (4).

4. A mine fire prevention and extinguishing optical fiber monitoring system according to claim 1, characterized in that: The roller-end dynamic fire extinguishing assembly (5) further comprises a belt-end thermal imaging detector (54), wherein the belt-end thermal imaging detector (54) is connected to the industrial control end (1) by signal. After the spraying action actuator (53) triggers the activation signal of the contact-pressure dry powder fire extinguishing mechanism (52), the belt-end thermal imaging detector (54) obtains the activation signal of the contact-pressure dry powder fire extinguishing mechanism (52) and simultaneously turns on the electrical path, and feeds back the on-site thermal imaging image through the belt-end thermal imaging detector (54), thereby re-verifying the location of the fire point.

5. A mine fire prevention and extinguishing optical fiber monitoring system according to claim 1, characterized in that: The industrial control end (1) comprises an industrial computer, a display, and a core switch. The core switch is connected to the temperature measuring host (3) and the programmable control box in the execution end (2) by signal transmission interface. The core switch obtains information parameters output by the temperature measuring host (3) and the programmable control box in the execution end (2), and uploads the information parameters to the industrial computer. The industrial computer outputs water source to the abnormal measurement end according to the abnormal parameters monitored and obtained by the execution end (2) and the temperature measuring host (3).

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