An open pit coal mine fire detection device and method of use thereof

Abstract

The present application relates to the technical field of open coal mine fire detection, in particular to an open coal mine fire detection device and its working principle, comprising a support seat, an alarm control mechanism, a detection mechanism; the support seat, as the carrier of the device, is arranged on the outer surface of the coal seam; the detection mechanism moves axially in the support seat and comprises an outer sleeve, a channel is formed between the outer sleeve and the coal seam, a drill rod is movably connected to the inner part of the outer sleeve in an axial direction, the bottom end of the drill rod is fixedly connected to a drill bit through the outer sleeve, the drill rod is hollow and has a detector arranged inside, and a through hole is formed in the outer surface of the end part of the drill rod close to the drill bit, in the present application, the fire detection device is arranged to facilitate the detection of the coal seam, the drill rod is used to protect the detector, a firing device is arranged to push the drill rod out, the through hole is pushed out, the air inside the drill rod flows, and the detection efficiency of the detector is improved.

Description

Technical Field

[0001] This invention relates to the field of open-pit coal mine fire detection technology, specifically to an open-pit coal mine fire detection device and its usage method. Background Technology

[0002] Open-pit coal mines exist in Inner Mongolia, Shanxi, and Xinjiang, among other places in my country. Most coal seams in these mines are located at the surface, allowing for easy mining and transportation with minimal cost, yet still yielding substantial profits. However, due to the long cross-sectional spans and uneven reserves within each seam, deeper seams or those with limited surface coal reserves are often abandoned during mining for greater profit. Because the coal seams are exposed on the ground, spontaneous combustion occurs, raising ambient temperatures and releasing large amounts of carbon monoxide into the air, severely harming the environment and potentially triggering fires in neighboring seams, causing even greater damage. The large cross-sectional area of ​​the coal seams makes effective monitoring difficult, leading to significant waste of coal resources. Existing technologies include wireless signal transmission monitoring terminals that can be placed in the middle of coal piles to monitor internal temperatures. However, these terminals are ineffective for deep coal seams. Therefore, this application provides an open-pit coal mine fire detection device to detect the temperature of deep coal seams. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides the following technical solution:

[0004] An open-pit coal mine fire detection device includes a support base, an alarm control mechanism, and a detection mechanism;

[0005] The support base, which serves as the carrier of the device, is set on the outer surface of the coal seam.

[0006] The detection mechanism, which moves axially within a support, includes an outer sleeve forming a channel between the outer sleeve and the coal seam. A drill rod is axially movably connected inside the outer sleeve. The bottom end of the drill rod passes through the outer sleeve and is fixedly connected to the drill bit. The drill rod is hollow and contains a detector. A through hole is formed on the outer surface of the end of the drill rod near the drill bit. The through hole communicates with the hollow part of the drill rod. At least one set of firing devices is provided on the outside of the drill rod, which is used to push the drill rod out.

[0007] The alarm control mechanism is detachably mounted on the upper end of the outer sleeve and includes a control housing. The control housing contains a control module, which is electrically connected to the detector. The control module is also connected to the monitoring backend via a signal transmission module for monitoring the coal seam.

[0008] Preferably, the firing device includes a push-pull electromagnet, the telescopic end of which is fixedly connected to a push plate, and the other end of which is fixedly connected to an outer sleeve, and the push plate is fixedly connected to a drill rod.

[0009] Preferably, the outer sleeve has multiple sets of through holes evenly distributed on its surface. A support rod is slidably connected inside the through holes. A push block is fixedly connected to the inner end of the support rod. The push block is hemispherical and a roller is movably connected to the outside of the push block. The outside of the roller is rotatably connected to the drill rod.

[0010] Preferably, the top of the outer sleeve is open, and a data terminal hole is provided at the opening; a connecting block is provided at the bottom of the control housing, and a data terminal is provided at the bottom of the connecting block.

[0011] The connecting block is spirally connected to the top of the outer sleeve, and the data terminal is connected to the data terminal hole, which is connected to the detector circuit, and the data terminal is connected to the control module circuit.

[0012] Preferably, the outer surface of the control housing is provided with a display screen, and the display screen is electrically connected to the control module.

[0013] Preferably, the support base includes a support plate with a central hole in the center and legs at the four corners of the bottom of the support plate. The outer surface of the legs is provided with barbs, and the bottom of the legs is provided with spikes.

[0014] Preferably, the outer surface of the outer sleeve is provided with a handle, and the outside of the handle is provided with a start button, which is connected in parallel with the push-pull electromagnet.

[0015] Preferably, the present invention also discloses the working principle of an open-pit coal mine fire detection device:

[0016] S1: The support base is installed on the outer surface of the coal seam. In order to ensure that the coal slag is discharged normally when the detection mechanism enters the coal seam, there is a gap between the support plate of the support base and the outer surface of the coal seam.

[0017] S2: Install the detection mechanism on the support base through the central hole, rotate the detection mechanism, and under the action of the drill bit, the detection mechanism enters the coal seam and forms a channel;

[0018] S3: After the detection mechanism reaches a reasonable depth, pull the detection mechanism out slightly to create a gap between the drill bit and the bottom of the channel. Then, turn off the push-pull electromagnet by pressing the start button. At this time, the drill rod will be pushed out by force, pushing out the drill bit and the through hole.

[0019] S4: Simultaneously, the support rod extends to support the channel, preventing the channel from loosening and coal slag from blocking the through hole;

[0020] S5: After installation, the detector can detect temperature, humidity and other factors deep in the coal seam. The control module receives the information detected by the detector and transmits it to the monitoring backend through the information transmission module to realize the backend monitoring function.

[0021] S6: The data detected by the detector can be displayed in real time on the screen, which is convenient for the inspection staff to observe.

[0022] This invention provides an open-pit coal mine fire detection device and its usage method, which has the following beneficial effects:

[0023] In this invention, the fire detection device facilitates the detection of coal seam protrusion, while the drill rod protects the detector. The firing device pushes the drill rod out, thereby pushing out the through hole and allowing air circulation inside the drill rod, thus improving the detection efficiency of the detector. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the fire detection device in this invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the detection mechanism in this invention;

[0026] Figure 3 In this invention Figure 2 Schematic diagram of the structure at point A in the diagram;

[0027] Figure 4 This is a schematic diagram of the alarm control mechanism in this invention;

[0028] Figure 5 This is a flowchart illustrating the operation of the device in this invention;

[0029] Figure 6 This is a schematic diagram of the overall operation of the device in this invention.

[0030] In the diagram: 10-Support base, 20-Alarm control mechanism, 21-Control box, 22-Display screen, 23-Connecting block, 24-Data terminal, 30-Detection mechanism, 31-Holding rod, 32-Data terminal hole, 33-Start button, 34-Push plate, 35-Push-pull electromagnet, 36-Outer sleeve, 37-Detector, 38-Drill bit, 39-Drill rod, 310-Roller, 311-Support rod, 312-Spring, 313-Push block, 40-Channel. Detailed Implementation

[0031] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Please see Figure 1-5 In this invention, a technical solution is provided:

[0035] An open-pit coal mine fire detection device includes a support base 10, an alarm control mechanism 20, and a detection mechanism 30;

[0036] The support base 10, which serves as the carrier of the device, is set on the outer surface of the coal seam and plays the role of supporting and fixing the coal seam.

[0037] The detection mechanism 30 moves axially within the support base 10 and includes an outer sleeve 36. A channel 40 is formed between the outer sleeve 36 and the coal seam. A drill rod 39 is axially connected inside the outer sleeve 36. The bottom end of the drill rod 39 passes through the outer sleeve 36 and is fixedly connected to the drill bit 38. The drill rod 39 is hollow and has a detector 37 installed inside. A through hole is opened on the outer surface of the end of the drill rod 39 near the drill bit 38. The through hole communicates with the hollow part of the drill rod 39. At least one set of firing devices is installed outside the drill rod 39. The firing devices are used to push out the drill rod 39 and then push out the through hole, so as to realize the air circulation inside the drill rod 39 and thus improve the detection efficiency of the detector 36.

[0038] The alarm control mechanism 20 is detachably mounted on the upper end of the outer sleeve 36. It includes a control housing 21, which houses a control module. The control module is electrically connected to the detector 37 and communicates with the monitoring backend through a signal transmission module. It is used to transmit the temperature, humidity, and other information of the coal seam to the monitoring backend to realize the monitoring function.

[0039] Specifically, such as Figure 2 As shown: The firing device includes a push-pull electromagnet 35. The telescopic end of the push-pull electromagnet 35 is fixedly connected to a push plate 34, and the other end of the push-pull electromagnet 35 is fixedly connected to an outer sleeve 36. The push plate 34 is fixedly connected to a drill rod 39. Thus, the push-pull electromagnet 35... Figure 2 As shown in the installation, when the push-pull electromagnet 35 is energized, the telescopic end automatically retracts, thereby driving the drill rod 39 to retract. When the push-pull electromagnet 35 is de-energized, the push-pull electromagnet 35, under the action of the spring, drives the push plate 34 to move in the opposite direction, thereby driving the drill rod 39 out and pushing out the through hole, thus avoiding the through hole being blocked by coal slag during the pushing process, which would affect the detection efficiency.

[0040] Specifically, such as Figure 3 As shown: Multiple sets of through holes are evenly opened on the surface of the outer sleeve 36. A support rod 311 is slidably connected in the through holes. A push block 313 is fixedly connected to the inner end of the support rod 311. The push block 313 is hemispherical and a roller 310 is movably connected to the outside of the push block 313. The outside of the roller 310 is rotatably connected to the drill rod 39. Thus, when the drill rod 39 is pushed out, it drives the roller 310 to rotate, thereby pushing the push block 313 to move. The support rod 311 is pushed out and inserted into the inner wall of the channel 40 to support the channel 40. This prevents the channel 40 from loosening during use, blocking the through hole, and affecting the efficiency of the inspection.

[0041] Specifically, such as Figure 4 As shown: the top of the outer sleeve 36 is open, and a data terminal hole 32 is provided at the opening; a connecting block 23 is provided at the bottom of the control housing 21, and a data terminal 24 is provided at the bottom of the connecting block 23.

[0042] The connecting block 23 is spirally connected to the top of the outer sleeve 36, and the data terminal 24 is connected to the data terminal hole 32. The data terminal hole 32 is connected to the detector 37 circuit, and the data terminal 24 is connected to the control module circuit.

[0043] Thus, the cooperation between the connecting block 23 and the outer sleeve 36 facilitates the installation and connection of the outer sleeve 36 and the control housing 21, thereby facilitating the overall disassembly of the device and improving the efficiency of the device.

[0044] Specifically, such as Figure 4As shown: A display screen 22 is provided on the outer surface of the control housing 21. The display screen 22 is electrically connected to the control module. The data detected by the detector 37 can be displayed in real time through the display screen 22, which is convenient for the inspection staff to observe.

[0045] Specifically, such as Figure 1 As shown: The support base 10 includes a support plate with a central hole in the center and legs at the four corners of the bottom of the support plate. The outer surface of the legs is provided with barbs, and the bottom of the legs is provided with spikes. This increases the grip of the legs and facilitates the legs entering the coal seam.

[0046] Specifically, such as Figure 2 As shown: a handle 31 is provided on the outer surface of the outer sleeve 36, and a start button 33 is provided on the outside of the handle 31. The start button 33 is connected in parallel with the push-pull electromagnet 35, so that the operator can push the outer sleeve 36 to rotate and control the power supply of the push-pull electromagnet 35.

[0047] like Figure 6 As shown, the working principle of this embodiment is as follows:

[0048] S1: The support base 10 is installed on the outer surface of the coal seam. In order to ensure that the coal slag is discharged normally when the detection mechanism 30 enters the coal seam, there is a gap between the support plate of the support base 10 and the outer surface of the coal seam.

[0049] S2: Install the detection mechanism 30 on the support base 10 through the central hole, rotate the detection mechanism 30, and under the action of the drill bit 38, the detection mechanism 30 enters the coal seam and forms a channel 40;

[0050] S3: After the detection mechanism 30 reaches a reasonable depth, pull out the detection mechanism 30 slightly to create a gap between the drill bit 38 and the bottom of the channel 40. Then, by pressing the start button 33, the push-pull electromagnet 35 is de-energized. At this time, the drill rod 39 is pushed out by force, pushing out the drill bit 38 and the through hole.

[0051] S4: At the same time, the support rod 311 is extended to support the channel 40 and prevent the channel 40 from becoming loose and the coal slag from blocking the through hole;

[0052] S5: After installation, the detector 37 is used to detect the temperature, humidity and other parameters deep in the coal seam. The control module receives the information detected by the detector 37 and transmits it to the monitoring backend through the information transmission module to realize the backend monitoring function.

[0053] S6: The data detected by the detector 37 can be displayed in real time on the display screen 22, which is convenient for the inspection staff to observe.

[0054] S7: After use, simply disassemble the device.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fire detection device for open-pit coal mines, characterized in that: Includes a support base (10), an alarm control mechanism (20), and a detection mechanism (30); The support base (10), which serves as the carrier of the device, is set on the outer surface of the coal seam; The detection mechanism (30) moves axially within the support base (10) and includes an outer sleeve (36). A channel (40) is formed between the outer sleeve (36) and the coal seam. A drill rod (39) is axially connected inside the outer sleeve (36). The bottom end of the drill rod (39) passes through the outer sleeve (36) and is fixedly connected to the drill bit (38). The drill rod (39) is hollow and has a detector (37) inside. A through hole is opened on the outer surface of the end of the drill rod (39) near the drill bit (38). The through hole communicates with the hollow part of the drill rod (39). At least one set of firing devices is provided on the outside of the drill rod (39). The firing devices are used to push the drill rod (39) out. The alarm control mechanism (20) is detachably installed at the upper end of the outer sleeve (36), including a control housing (21). The control housing (21) is equipped with a control module. The control module is electrically connected to the detector (37), and the control module is connected to the monitoring backend through a signal transmission module for monitoring the coal seam. The firing device includes a push-pull electromagnet (35), the telescopic end of which is fixedly connected to a push plate (34), and the other end of which is fixedly connected to an outer sleeve (36). The push plate (34) is fixedly connected to a drill rod (39). When the push-pull electromagnet (35) is energized, the telescopic end automatically retracts, thereby driving the drill rod (39) to retract. When the push-pull electromagnet (35) is de-energized, the push-pull electromagnet (35) drives the push plate (34) to move in the opposite direction under the action of the spring, thereby driving the drill rod (39) to be pushed out. Multiple sets of through holes are evenly opened on the surface of the outer sleeve (36). A support rod (311) is slidably connected in the through hole. A push block (313) is fixedly connected to the inner end of the support rod (311). The push block (313) is hemispherical and a roller (310) is movably connected to the outside of the push block (313). The outside of the roller (310) is rotatably connected to the drill rod (39).

2. The open-pit coal mine fire detection device as described in claim 1, characterized in that: The top of the outer sleeve (36) is open, and a data terminal hole (32) is provided at the opening. The bottom of the control housing (21) is provided with a connecting block (23), and the bottom of the connecting block (23) is provided with a data terminal (24). The connecting block (23) is spirally connected to the top end of the outer sleeve (36), and the data terminal (24) is connected to the data terminal hole (32). The data terminal hole (32) is connected to the detector (37) and the data terminal (24) is connected to the control module.

3. The open-pit coal mine fire detection device as described in claim 2, characterized in that: The outer surface of the control housing (21) is provided with a display screen (22), which is electrically connected to the control module.

4. The open-pit coal mine fire detection device as described in claim 1, characterized in that: The support base (10) includes a support plate with a central hole in the center and legs at the four corners of the bottom of the support plate. The outer surface of the legs is provided with barbs, and the bottom of the legs is provided with spikes.

5. The open-pit coal mine fire detection device as described in claim 1, characterized in that: The outer surface of the outer sleeve (36) is provided with a handle (31), and the outside of the handle (31) is provided with a start button (33), which is connected in parallel with the push-pull electromagnet (35).

6. The method of using the open-pit coal mine fire detection device according to any one of claims 1 to 5, characterized in that: Includes the following steps: S1: The support base (10) is installed on the outer surface of the coal seam. In order to ensure that the coal slag is discharged normally when the detection mechanism (30) enters the coal seam, there is a gap between the support plate of the support base (10) and the outer surface of the coal seam. S2: Install the detection mechanism (30) on the support base (10) through the center hole, rotate the detection mechanism (30), and under the action of the drill bit (38), the detection mechanism (30) enters the coal seam and forms a channel (40); S3: After the depth of the detection mechanism (30) reaches the reasonable depth, pull out the detection mechanism (30) so that there is a gap between the drill bit (38) and the bottom of the channel (40). By using the start button (33), the push-pull electromagnet (35) is de-energized. At this time, the drill rod (39) is pushed out by force, pushing out the drill bit (38) and the through hole. S4: At the same time, the support rod (311) is pushed out to support the channel (40) and prevent the channel (40) from loosening and the slag from blocking the through hole; S5: After installation, the temperature and humidity deep in the coal seam are detected by the detector (37), and the information detected by the detector (37) is received by the control module and transmitted to the monitoring backend through the information transmission module to realize the backend monitoring function. S6: At the same time, the data detected by the detector (37) can be displayed in real time through the display screen (22), which is convenient for the inspection staff to observe.

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