A coal mine underground blasting CO product elimination system and method

Abstract

The application provides a coal mine underground blasting CO product elimination system and method, and the system comprises a control module, an in-situ elimination module and a spraying elimination module; the control module is used for sending a first spraying opening instruction, first spraying amount information and a first spraying closing instruction to the in-situ elimination module; the in-situ elimination module is used for spraying a CO elimination agent around the hole wall and the bottom of each blast hole of a coal mine underground blasting section; the control module is further used for sending spraying parameter information, a second spraying opening instruction and a second spraying closing instruction to the spraying elimination module; the spraying elimination module is used for spraying the CO elimination agent in the coal mine underground roadway; and the control module is further used for controlling the in-situ elimination module and the spraying elimination module to stop working. The technical scheme provided by the application covers the whole process of CO generation and diffusion, can more comprehensively and efficiently eliminate CO, and guarantees the life safety of the coal mine underground staff.

Description

Technical Field

[0001] This application relates to the field of CO product removal, and more particularly to a system and method for removing CO products from underground blasting in coal mines. Background Technology

[0002] While blasting is the most common method for developing tunnels, it generates large amounts of toxic carbon monoxide (CO), a persistent and significant hazard to workers' lives. CO has an affinity for hemoglobin 200-300 times greater than oxygen, readily combining with hemoglobin to form carboxyhemoglobin, which impairs hemoglobin's oxygen-carrying capacity, leading to asphyxiation and death. Underground ventilation systems, including mechanical and natural ventilation, are the most basic measures to reduce carbon monoxide production during blasting operations. However, due to the complex tunnel layout, the poor stability of ventilation equipment, and the rapid diffusion of gases, ventilation alone is insufficient to effectively eliminate the toxic carbon monoxide produced during blasting.

[0003] Currently, researchers mostly use spraying devices to apply scavenging agents to eliminate CO. However, existing spraying devices are largely designed for in-situ CO elimination, i.e., spraying CO scavenging agents into the borehole before the blasting charge to eliminate the CO generated in the borehole at the moment of blasting. But due to the limitations of the application scenario, this type of spraying device requires manual hand-held operation, has low efficiency, and a small spraying range. It is more suitable for local spraying before blasting, and cannot quickly and efficiently eliminate CO that rapidly diffuses in the roadway after blasting, posing a threat to the safety of underground workers. Summary of the Invention

[0004] This application provides a system and method for eliminating CO products from underground blasting in coal mines, in order to at least solve the technical problem of insufficient efficiency and thoroughness in eliminating CO products in underground mines.

[0005] The first aspect of this application provides a CO product removal system for underground blasting in coal mines, comprising: a control module, an in-situ removal module, and a spraying removal module;

[0006] The control module is used to send a first spraying start command, a first spraying volume information, and a first spraying stop command to the in-situ elimination module after the blasting and drilling work in the coal mine is completed.

[0007] The in-situ elimination module is used to spray CO eliminator around the borehole walls and bottom of each blast hole in the underground blasting section of the coal mine based on the first spraying start command and the first spraying volume information and using a spraying device.

[0008] The control module is also used to send spraying parameter information, a second spraying start command, and a second spraying stop command to the spraying elimination module based on the CO concentration diffused in the underground roadway after the blasting in the coal mine.

[0009] The spraying elimination module is used to spray CO eliminator into the underground roadway of the coal mine based on the spraying parameter information and the second spraying start command, using a movable spraying device.

[0010] The control module is further configured to receive borehole spraying completion information sent by the in-situ elimination module and information indicating that the CO concentration at the current location does not exceed the standard sent by the spraying elimination module, and based on the borehole spraying completion information and the information indicating that the CO concentration at the current location does not exceed the standard, send a first spraying shutdown command and a second spraying shutdown command to the in-situ elimination module and the spraying elimination module respectively, thereby controlling the in-situ elimination module and the spraying elimination module to stop working.

[0011] Preferably, the spraying parameter information includes: second spraying volume information, first moving speed information, and first spraying range information;

[0012] The spray elimination module includes: a first CO concentration sensor;

[0013] The first CO concentration sensor is used to collect the CO concentration diffused in the roadway after the blasting in the coal mine;

[0014] The spraying elimination module is also used to generate information that the CO concentration at the current location does not exceed the standard when the CO concentration diffused in the roadway is less than the preset CO concentration threshold, and to send the information that the CO concentration at the current location does not exceed the standard to the control module.

[0015] The control module is also used to send a second spray shut-off command to the spray elimination module when it receives information that the CO concentration at the current location does not exceed the standard.

[0016] Furthermore, the system also includes: a truncation elimination module;

[0017] The control module is also used to send cutoff parameters, cutoff start instructions, and cutoff stop instructions to the cutoff elimination module based on the CO concentration at the cutoff location where the cutoff elimination module is located;

[0018] The truncation elimination module is used to perform truncation operations based on the truncation parameters, truncation start instructions, and truncation stop instructions.

[0019] Furthermore, the cutoff elimination module includes: a movable and retractable wall and a second CO concentration sensor;

[0020] The movable and retractable wall is used to isolate the CO diffusion area from the safe area in the tunnel;

[0021] The second CO concentration sensor is installed on the wall and is used to collect the CO concentration at the cut-off location;

[0022] The cutoff parameters include: the wall's position information, the wall's moving speed, and the wall's lifting and lowering commands.

[0023] Furthermore, the system also includes: a CO eliminator recovery module;

[0024] The control module is also used to send a recovery start command and a recovery stop command to the CO eliminator recovery module at the same time as starting and stopping the spraying elimination module;

[0025] The control module is further configured to determine the moving speed and recovery range corresponding to the CO eliminator recovery module based on the first moving speed information, the first spraying range information, the moving speed of the wall and the position information of the wall, and send the moving speed and recovery range corresponding to the CO eliminator recovery module to the CO eliminator recovery module;

[0026] The CO eliminator recovery module is used to perform synchronous recovery of the CO eliminator sprayed by the spraying elimination module based on the moving speed and recovery range of the CO eliminator recovery module.

[0027] The CO eliminator recovery module includes: a flat plate device;

[0028] The flat plate device is used to receive scattered CO eliminator;

[0029] The flat plate device has the functions of moving, extending and retracting, and adsorption.

[0030] Furthermore, the spraying elimination module is also used to send the location information of the spraying elimination module to the control module;

[0031] The control module is also used to determine the spraying parameters of the spraying elimination module based on the position information of the wall, the moving speed of the wall, the CO concentration diffused in the underground roadway after the blasting in the coal mine, and the position information of the spraying elimination module.

[0032] Furthermore, the control module is also used to send a command to the cutoff elimination module to start the cutoff elimination module before or after underground blasting in the coal mine.

[0033] Furthermore, the spraying elimination module is also used to collect the CO concentration at each point in the CO diffusion area of ​​the roadway and send the CO concentration at each point to the control module;

[0034] The control module is also used to determine whether the CO concentration at each point exceeds a preset CO concentration threshold based on the CO concentration at each point. If not, it sends a corresponding shutdown command to the in-situ elimination module, the spraying elimination module, the cut-off elimination module and the CO eliminator recovery module to end the operation. If yes, it continues to operate.

[0035] A second aspect of this application provides a method for eliminating CO products from underground blasting in coal mines, the method comprising:

[0036] After the blasting and drilling work in the coal mine is completed, CO eliminator is sprayed quantitatively around the hole walls and bottom of each blast hole in the underground blasting section using an in-situ elimination module.

[0037] After the blasting is completed, the CO concentration at the current location in the underground roadway of the coal mine is collected in real time using the spray elimination module, and it is determined whether the CO concentration is less than the preset CO concentration threshold.

[0038] If the CO concentration is greater than the preset threshold, the spraying parameters of the spraying elimination module are determined in real time based on the real-time collected CO concentration.

[0039] Based on the spraying parameter information determined in real time, the CO eliminator is sprayed at the current location in the roadway using the spraying elimination module until the CO concentration at the current location is less than the preset CO concentration threshold.

[0040] The spraying parameter information includes: second spraying volume information, first moving speed information, and first spraying range information.

[0041] Preferably, the method further includes:

[0042] The CO concentration at the cutoff location where the cutoff elimination module is located is obtained using the cutoff elimination module, and it is determined whether the CO concentration at the cutoff location is less than a preset CO concentration threshold.

[0043] If the CO concentration is less than the preset CO concentration threshold, the cutoff parameters of the cutoff elimination module are determined based on the CO concentration at the cutoff location.

[0044] Based on the cutoff parameters, the CO diffusion zone and the safe zone in the roadway are divided;

[0045] The method further includes:

[0046] Obtain the spraying parameter information of the spray elimination module and the cutoff parameters of the cutoff elimination module;

[0047] The moving speed and recovery range of the CO eliminator recovery module are determined based on the spraying parameter information and the cutoff parameter.

[0048] Based on the moving speed and recovery range, a synchronous recovery operation is performed on the CO eliminator sprayed by the spray elimination module.

[0049] The technical solutions provided by the embodiments of this application bring at least the following beneficial effects:

[0050] This application proposes a system and method for eliminating CO products from underground coal mine blasting. The system includes a control module, an in-situ elimination module, and a spray elimination module. The control module sends a first spray start command, a first spray volume information, and a first spray stop command to the in-situ elimination module after the underground blasting drilling operation is completed. The in-situ elimination module sprays CO eliminator around the borehole walls and bottom of each borehole in the underground blasting section of the coal mine, based on the first spray start command and the first spray volume information, using a spraying device. The control module also sends spraying parameter information to the spray elimination module after the underground blasting operation, based on the CO concentration diffused in the underground roadway. The system includes a first spraying command, a second spraying start command, and a second spraying stop command. The spraying elimination module is used to spray CO eliminator into the underground coal mine roadway using a movable spraying device, based on the spraying parameter information and the second spraying start command. The control module is also used to receive information from the in-situ elimination module indicating completion of borehole spraying and information from the spraying elimination module indicating that the current CO concentration is within acceptable limits. Based on these information, the control module sends a first spraying stop command and a second spraying stop command to the in-situ elimination module and the spraying elimination module, respectively, to control the in-situ elimination module and the spraying elimination module to stop operating. The technical solution proposed in this application covers the entire process of CO generation and diffusion, from pre- to post-generation, enabling more comprehensive and efficient CO elimination and ensuring the safety of underground coal mine workers.

[0051] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0052] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0053] Figure 1 This is a first structural diagram of a coal mine underground blasting CO product removal system according to an embodiment of this application;

[0054] Figure 2 This is a structural diagram of a spray elimination module according to an embodiment of this application;

[0055] Figure 3 This is a second structural diagram of a CO product removal system for underground blasting in a coal mine, according to an embodiment of this application.

[0056] Figure 4 This is a structural diagram of a truncation elimination module according to an embodiment of this application;

[0057] Figure 5 This is a third structural diagram of a CO product removal system for underground blasting in a coal mine, according to an embodiment of this application.

[0058] Figure 6 This is a structural diagram of a CO eliminator recovery module according to an embodiment of this application;

[0059] Figure 7 This is a flowchart of a method for eliminating CO products from underground blasting in a coal mine, according to an embodiment of this application.

[0060] Figure Labels

[0061] Control module 1, in-situ elimination module 2, spray elimination module 3, first CO concentration sensor 3-1, cut-off elimination module 4, movable and retractable wall 4-1, second CO concentration sensor 4-2, CO eliminator recovery module 5, flat plate device 5-1. Detailed Implementation

[0062] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0063] This application discloses a system and method for eliminating CO products from underground blasting in coal mines. The system includes a control module, an in-situ elimination module, and a spray elimination module. The control module sends a first spray start command, a first spray volume information, and a first spray stop command to the in-situ elimination module after the underground blasting drilling operation is completed. The in-situ elimination module sprays CO eliminator around the borehole walls and bottom of each borehole in the underground blasting section of the coal mine, based on the first spray start command and the first spray volume information, using a spraying device. The control module also sends spraying parameter information to the spray elimination module after the underground blasting operation, based on the CO concentration diffused in the underground roadway. The system includes a first spraying command, a second spraying start command, and a second spraying stop command. The spraying elimination module is used to spray CO eliminator into the underground coal mine roadway using a movable spraying device, based on the spraying parameter information and the second spraying start command. The control module is also used to receive information from the in-situ elimination module indicating completion of borehole spraying and information from the spraying elimination module indicating that the current CO concentration is within acceptable limits. Based on these information, the control module sends a first spraying stop command and a second spraying stop command to the in-situ elimination module and the spraying elimination module, respectively, to control the in-situ elimination module and the spraying elimination module to stop operating. The technical solution proposed in this application covers the entire process of CO generation and diffusion, from pre- to post-generation, enabling more comprehensive and efficient CO elimination and ensuring the safety of underground coal mine workers.

[0064] The following description, with reference to the accompanying drawings, illustrates an embodiment of a CO product removal system and method for underground blasting in coal mines.

[0065] Example 1

[0066] Figure 1 This is a structural diagram of a CO product removal system for underground blasting in a coal mine, according to an embodiment of this application. Figure 1 As shown, the system includes: a control module 1, an in-situ elimination module 2, and a spray elimination module 3;

[0067] The control module 1 is used to send a first spraying start command, a first spraying volume information and a first spraying stop command to the in-situ elimination module 2 after the blasting and drilling work in the coal mine is completed.

[0068] The in-situ elimination module 2 is used to spray CO eliminator around the borehole walls and bottom of each blast hole in the underground blasting section of the coal mine based on the first spraying start command and the first spraying amount information and using a spraying device.

[0069] It should be noted that when the in-situ elimination module 2 is activated, a CO eliminator is sprayed into each borehole using a spraying device, ensuring that it adheres evenly to the borehole walls and bottom, forming an oxidation zone inside the borehole. After all boreholes have been sprayed, a signal indicating that the spraying is complete is transmitted back to the control module 1. The control module 1 then sends a first spraying shutdown command to the in-situ elimination module 2. Upon receiving the command, the in-situ elimination module 2 terminates its operation, thus enabling the simultaneous elimination of CO generated inside the boreholes during blasting.

[0070] The control module 1 is also used to send spraying parameter information, a second spraying start command, and a second spraying stop command to the spraying elimination module 3 based on the CO concentration diffused in the underground roadway after the blasting in the coal mine.

[0071] The spraying elimination module 3 is used to spray CO eliminator into the underground roadway of the coal mine based on the spraying parameter information and the second spraying start command, using a movable spraying device.

[0072] The control module 1 is further configured to receive the borehole spraying completion information sent by the in-situ elimination module 2 and the information that the CO concentration at the current location does not exceed the standard sent by the spraying elimination module 3, and based on the borehole spraying completion information and the information that the CO concentration at the current location does not exceed the standard, send a first spraying shutdown command and a second spraying shutdown command to the in-situ elimination module 2 and the spraying elimination module 3 respectively, and control the in-situ elimination module 2 and the spraying elimination module 3 to stop working.

[0073] It should be noted that, Figure 1 This is merely an illustration of a mine blasting CO product removal system according to an embodiment of this disclosure, and does not limit the structure of the mine blasting CO product removal system of this invention.

[0074] It should be noted that the spraying parameter information includes: second spraying volume information, first moving speed information, and first spraying range information;

[0075] The spray elimination module 3 includes: a first CO concentration sensor 3-1, such as... Figure 2 As shown;

[0076] The first CO concentration sensor 3-1 is used to collect the CO concentration diffused in the roadway after the blasting in the coal mine;

[0077] The spraying elimination module 3 is also used to generate information that the CO concentration at the current location does not exceed the standard when the CO concentration diffused in the roadway is less than the preset CO concentration threshold, and send the information that the CO concentration at the current location does not exceed the standard to the control module 1.

[0078] The control module 1 is also used to send a second spray shut-off command to the spray elimination module 3 when it receives information that the CO concentration at the current location does not exceed the standard.

[0079] It should be noted that after the blasting operation is completed, the spraying elimination module 3 is activated. The first CO concentration sensor in the spraying elimination module 3 collects the CO concentration diffused in the roadway, and controls the moving speed and spraying range of the spraying device moving on the fixed slide rail at the top of the roadway based on the CO concentration, so as to achieve rapid elimination of CO that has diffused into the roadway after the blasting operation.

[0080] In the embodiments disclosed herein, such as Figure 3 As shown, the system also includes: a cutoff elimination module 4;

[0081] The control module 1 is also used to send cutoff parameters, cutoff start instructions, and cutoff stop instructions to the cutoff elimination module 4 based on the CO concentration at the cutoff location where the cutoff elimination module is located.

[0082] The truncation elimination module 4 is used to perform truncation operations based on the truncation parameters, truncation start instructions, and truncation stop instructions.

[0083] It should be noted that, as Figure 4 As shown, the cutoff elimination module 4 includes: a movable and retractable wall 4-1 and a second CO concentration sensor 4-2;

[0084] The movable and retractable wall 4-1 is used to isolate the CO diffusion area from the safe area in the tunnel; wherein, the movable and retractable wall 4-1 moves based on a slide rail fixed to the top of the tunnel.

[0085] The second CO concentration sensor 4-2 is installed on the wall 4-1, and the second CO concentration sensor 4-2 is used to collect the CO concentration at the cut-off position;

[0086] The cutoff parameters include: the wall's position information, the wall's moving speed, and the wall's lifting and lowering commands.

[0087] It should be noted that the function of the cut-off and elimination module 4 is to isolate the CO diffusion area after blasting from the safe area and control the CO within a certain roadway space.

[0088] Furthermore, the control module 1 is also used to send a command to the cutoff elimination module 4 to start the cutoff elimination module before or after underground blasting in the coal mine.

[0089] It should be noted that after all preparations are completed before detonation and personnel have evacuated, the cut-off and elimination module 4 can be activated to move the wall 4-1 to a preset position and lower it, and it will not be moved again afterward.

[0090] Alternatively, the interception and elimination module 4 can be activated after the blasting is completed. The wall 4-1 and the spraying device of the spraying elimination module 3 are positioned at the same initial location, a certain distance from the blasting face. After the blasting, both the wall 4-1 and the spraying device are activated and quickly moved to a preset position, for example, 50m from the blasting section. The wall 4-1 is then lowered to intercept the blasting, while the spraying device of the spraying elimination module 3 continuously moves between the wall 4-1 and the blasting section, spraying. Simultaneously, a second CO concentration sensor 4-2 is installed on the wall 4-1. Based on the CO concentration, the position of the wall 4-1 is controlled. If the CO concentration does not exceed a threshold, the wall 4-1 continues to move towards the section, thus reducing the isolated CO diffusion area. A minimum area is set, for example, 10m. After reaching this minimum area, the wall 4-1 stops moving.

[0091] It should be noted that the wall 4-1 is provided with ventilation openings for mine ventilation.

[0092] In the embodiments disclosed herein, such as Figure 5 As shown, the system also includes: a CO eliminator recovery module 5;

[0093] The control module 1 is also used to send a recovery start command and a recovery stop command to the CO eliminator recovery module 5 while starting and stopping the spraying elimination module 3;

[0094] The control module 1 is further configured to determine the moving speed and recovery range corresponding to the CO eliminator recovery module 5 based on the first moving speed information, the first spraying range information, the moving speed of the wall and the position information of the wall, and send the moving speed and recovery range corresponding to the CO eliminator recovery module 5 to the CO eliminator recovery module 5;

[0095] The CO eliminator recovery module 5 is used to perform synchronous recovery operations on the CO eliminator sprayed by the spraying elimination module 3 based on the moving speed and recovery range corresponding to the CO eliminator recovery module 5.

[0096] It should be noted that, among them, such as Figure 6 As shown, the CO eliminator recovery module 5 includes: a flat plate device 5-1, which is used to receive scattered CO eliminator;

[0097] The flat plate device 5-1 has the functions of moving, extending and adsorbing.

[0098] It should be noted that the initial positions of the flat plate device 5-1, the wall 4-1, and the spraying device of the spraying elimination module 3 are the same, and the moving speed is the same as that of the spraying elimination module 3. Furthermore, the first spraying range information corresponds to the area of ​​the flat plate device 5-1.

[0099] Furthermore, the spraying elimination module 3 is also used to send the position information of the spraying elimination module 3 to the control module 1;

[0100] Specifically, the control module 1 needs to determine the first moving speed information of the spraying elimination module 3 based on the moving speed of the wall of the cut-off elimination module 4, the position information of the wall, and the position information of the spraying elimination module 3, so as to avoid the wall 4-1 colliding with the spraying device of the spraying elimination module 3.

[0101] The control module 1 is also used to determine the spraying parameter information of the spraying elimination module 3 based on the position information of the wall, the moving speed of the wall, the CO concentration diffused in the underground roadway after the blasting in the coal mine, and the position information of the spraying elimination module.

[0102] Furthermore, the spraying elimination module 3 is also used to collect the CO concentration at each point in the CO diffusion area of ​​the roadway and send the CO concentration at each point to the control module 1;

[0103] The control module 1 is also used to determine whether the CO concentration at each point exceeds a preset CO concentration threshold based on the CO concentration at each point. If not, it sends a corresponding shutdown command to the in-situ elimination module 2, the spraying elimination module 3, the cut-off elimination module 4 and the CO eliminator recovery module 5 to end the operation. If yes, it continues to operate.

[0104] In summary, the CO product elimination system proposed in this embodiment covers the entire process of CO generation and diffusion, and can eliminate CO more comprehensively and efficiently, thus ensuring the safety of underground coal mine workers.

[0105] Example 2

[0106] Figure 7 This is a flowchart of a method for eliminating CO products from underground blasting in a coal mine, according to an embodiment of this application. Figure 7 As shown, the method includes:

[0107] Step 1: After the blasting and drilling work is completed in the coal mine, CO eliminator is sprayed quantitatively around the hole walls and bottom of each blast hole in the underground blasting section using the in-situ elimination module.

[0108] Step 2: After the blasting is completed, the CO concentration at the current location in the underground roadway of the coal mine is collected in real time using the spray elimination module, and it is determined whether the CO concentration is less than the preset CO concentration threshold.

[0109] Step 3: If the CO concentration is greater than the preset threshold, the spraying parameters of the spraying elimination module are determined in real time based on the real-time collected CO concentration.

[0110] Step 4: Based on the real-time determined spraying parameter information, use the spraying elimination module to spray CO eliminator at the current location in the roadway until the CO concentration at the current location is less than the preset CO concentration threshold.

[0111] The spraying parameter information includes: second spraying volume information, first moving speed information, and first spraying range information.

[0112] In this embodiment of the disclosure, the method further includes:

[0113] The CO concentration at the cutoff location where the cutoff elimination module is located is obtained using the cutoff elimination module, and it is determined whether the CO concentration at the cutoff location is less than a preset CO concentration threshold.

[0114] If the CO concentration is less than the preset CO concentration threshold, the cutoff parameters of the cutoff elimination module are determined based on the CO concentration at the cutoff location.

[0115] Based on the cutoff parameters, the CO diffusion zone and the safe zone in the roadway are divided;

[0116] In this embodiment of the disclosure, the method further includes:

[0117] Obtain the spraying parameter information of the spray elimination module and the cutoff parameters of the cutoff elimination module;

[0118] The moving speed and recovery range of the CO eliminator recovery module are determined based on the spraying parameter information and the cutoff parameter.

[0119] Based on the moving speed and recovery range, a synchronous recovery operation is performed on the CO eliminator sprayed by the spray elimination module.

[0120] It should be noted that when the information that the CO concentration at the current location does not exceed the standard is received, a second spray shut-off command is sent to the spray elimination module.

[0121] For example, after the blasting and drilling work in the coal mine is completed, the control module sends the first spraying start command, the first spraying volume information, and the first spraying stop command to the in-situ elimination module;

[0122] The in-situ elimination module sprays CO eliminator around the borehole walls and bottom of each blast hole in the coal mine based on the first spraying start command and the first spraying volume information and using the spraying device.

[0123] After the blasting is completed in the underground coal mine, the control module sends spraying parameter information, a second spraying start command, and a second spraying stop command to the spraying elimination module based on the CO concentration diffused in the underground coal mine roadway.

[0124] The spraying elimination module sprays CO eliminator into the underground roadway of the coal mine based on the spraying parameter information and the second spraying start command, using a movable spraying device.

[0125] When the control module receives the borehole spraying completion information sent by the in-situ elimination module and the current location CO concentration not exceeding the standard information sent by the spray elimination module, it sends a first spraying shutdown command and a second spraying shutdown command to the in-situ elimination module and the spray elimination module respectively, based on the borehole spraying completion information and the current location CO concentration not exceeding the standard information, thereby controlling the in-situ elimination module and the spray elimination module to stop working.

[0126] In this embodiment of the disclosure, the control module sends a cutoff parameter, a cutoff start command, and a cutoff stop command to the cutoff elimination module based on the CO concentration at the cutoff location where the cutoff elimination module is located;

[0127] The truncation elimination module performs truncation operations based on the truncation parameters, truncation start instructions, and truncation stop instructions.

[0128] It should be noted that the cutoff elimination module includes: a movable and retractable wall and a second CO concentration sensor;

[0129] The movable and retractable wall is used to isolate the CO diffusion area from the safe area in the tunnel;

[0130] The second CO concentration sensor is installed on the wall and is used to collect the CO concentration at the cut-off location;

[0131] The cutoff parameters include: the wall's position information, the wall's moving speed, and the wall's lifting and lowering commands.

[0132] It should be noted that the control module can send a command to the cutoff elimination module to start the cutoff elimination module before or after underground blasting in the coal mine.

[0133] In this embodiment of the disclosure, the control module determines the moving speed and recovery range corresponding to the CO eliminator recovery module based on the first moving speed information, the first spraying range information, the moving speed of the wall and the position information of the wall, and sends the moving speed and recovery range corresponding to the CO eliminator recovery module to the CO eliminator recovery module;

[0134] The CO eliminator recovery module performs synchronous recovery operations on the CO eliminator sprayed by the spraying elimination module based on the moving speed and recovery range of the CO eliminator recovery module.

[0135] The CO eliminator recovery module includes a flat plate device for receiving scattered CO eliminator, which has the functions of movement, extension and retraction, and adsorption.

[0136] In this embodiment of the disclosure, the spraying elimination module sends the location information of the spraying elimination module to the control module;

[0137] The control module determines the spraying parameters of the spraying elimination module based on the wall's location information, the wall's moving speed, the CO concentration diffused in the underground roadway after the coal mine blasting, and the location information of the spraying elimination module.

[0138] It should be noted that the spraying parameters of the spraying elimination module are updated in real time based on the CO concentration diffused in the underground roadway of the coal mine.

[0139] In this embodiment of the disclosure, the CO concentration at each point in the CO diffusion area of ​​the tunnel is collected, and the CO concentration at each point is sent to the control module;

[0140] Determine whether the CO concentration at each point exceeds the preset CO concentration threshold. If not, send the corresponding shutdown command to the in-situ elimination module, the spraying elimination module, the cut-off elimination module, and the CO eliminator recovery module to end the operation. If yes, continue the operation.

[0141] In summary, the CO product elimination method proposed in this embodiment covers the entire process of CO generation and diffusion, and can eliminate CO more comprehensively and efficiently, thus ensuring the safety of underground coal mine workers.

[0142] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0143] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0144] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A system for eliminating CO products from underground blasting in coal mines, characterized in that, include: Control module, in-situ elimination module, and spray elimination module; The control module is used to send a first spraying start command, a first spraying volume information, and a first spraying stop command to the in-situ elimination module after the blasting and drilling work in the coal mine is completed. The in-situ elimination module is used to spray CO eliminator around the borehole walls and bottom of each blast hole in the underground blasting section of the coal mine based on the first spraying start command and the first spraying volume information and using a spraying device. The control module is also used to send spraying parameter information, a second spraying start command, and a second spraying stop command to the spraying elimination module based on the CO concentration diffused in the underground roadway after the blasting in the coal mine. The spraying elimination module is used to spray CO eliminator into the underground roadway of the coal mine based on the spraying parameter information and the second spraying start command, using a movable spraying device. The control module is also used to receive the borehole spraying completion information sent by the in-situ elimination module and the information that the CO concentration at the current location does not exceed the standard sent by the spraying elimination module, and based on the borehole spraying completion information and the information that the CO concentration at the current location does not exceed the standard, send a first spraying shutdown command and a second spraying shutdown command to the in-situ elimination module and the spraying elimination module respectively, and control the in-situ elimination module and the spraying elimination module to stop working; The spraying parameter information includes: second spraying volume information, first moving speed information, and first spraying range information; The spray elimination module includes: a first CO concentration sensor; The first CO concentration sensor is used to collect the CO concentration diffused in the roadway after the blasting in the coal mine; The spraying elimination module is also used to generate information that the CO concentration at the current location does not exceed the standard when the CO concentration diffused in the roadway is less than the preset CO concentration threshold, and to send the information that the CO concentration at the current location does not exceed the standard to the control module. The control module is also used to send a second spray shut-off command to the spray elimination module when it receives information that the CO concentration at the current location does not exceed the standard. The system also includes: a truncation elimination module; The control module is also used to send cutoff parameters, cutoff start instructions, and cutoff stop instructions to the cutoff elimination module based on the CO concentration at the cutoff location where the cutoff elimination module is located; The truncation elimination module is used to perform truncation operations based on the truncation parameters, truncation start instructions, and truncation stop instructions.

2. The coal mine underground blasting CO product removal system as described in claim 1, characterized in that, The cutoff elimination module includes: a movable and retractable wall and a second CO concentration sensor; The movable and retractable wall is used to isolate the CO diffusion area from the safe area in the tunnel; The second CO concentration sensor is installed on the wall and is used to collect the CO concentration at the cut-off location; The cutoff parameters include: the wall's position information, the wall's moving speed, and the wall's lifting and lowering commands.

3. The coal mine underground blasting CO product removal system as described in claim 2, characterized in that, The system also includes: a CO eliminator recovery module; The control module is also used to send a recovery start command and a recovery stop command to the CO eliminator recovery module at the same time as starting and stopping the spraying elimination module; The control module is further configured to determine the moving speed and recovery range corresponding to the CO eliminator recovery module based on the first moving speed information, the first spraying range information, the moving speed of the wall and the position information of the wall, and send the moving speed and recovery range corresponding to the CO eliminator recovery module to the CO eliminator recovery module; The CO eliminator recovery module is used to perform synchronous recovery of the CO eliminator sprayed by the spraying elimination module based on the moving speed and recovery range of the CO eliminator recovery module. The CO eliminator recovery module includes: a flat plate device; The flat plate device is used to receive scattered CO eliminator; The flat plate device has the functions of moving, extending and retracting, and adsorption.

4. The coal mine underground blasting CO product removal system as described in claim 3, characterized in that, The spraying elimination module is also used to send the location information of the spraying elimination module to the control module; The control module is also used to determine the spraying parameters of the spraying elimination module based on the position information of the wall, the moving speed of the wall, the CO concentration diffused in the underground roadway after the blasting in the coal mine, and the position information of the spraying elimination module.

5. The coal mine underground blasting CO product removal system as described in claim 4, characterized in that, The control module is also used to send a command to the cutoff elimination module to start the cutoff elimination module before or after underground blasting in the coal mine.

6. The coal mine underground blasting CO product removal system as described in claim 5, characterized in that, The spraying elimination module is also used to collect the CO concentration at each point in the CO diffusion area of ​​the roadway and send the CO concentration at each point to the control module; The control module is also used to determine whether the CO concentration at each point exceeds a preset CO concentration threshold based on the CO concentration at each point. If not, it sends a corresponding shutdown command to the in-situ elimination module, the spraying elimination module, the cut-off elimination module and the CO eliminator recovery module to end the operation. If yes, it continues to operate.

7. A method for eliminating CO products from underground blasting in coal mines based on the CO product elimination system described in any one of claims 1-6, characterized in that, The method includes: After the blasting and drilling work in the coal mine is completed, CO eliminator is sprayed quantitatively around the hole walls and bottom of each blast hole in the underground blasting section using an in-situ elimination module. After the blasting is completed, the CO concentration at the current location in the underground roadway of the coal mine is collected in real time using the spray elimination module, and it is determined whether the CO concentration is less than the preset CO concentration threshold. If the CO concentration is greater than the preset threshold, the spraying parameters of the spraying elimination module are determined in real time based on the real-time collected CO concentration. Based on the spraying parameter information determined in real time, the CO eliminator is sprayed at the current location in the roadway using the spraying elimination module until the CO concentration at the current location is less than the preset CO concentration threshold. The spraying parameter information includes: second spraying volume information, first moving speed information, and first spraying range information.

8. The method as described in claim 7, characterized in that, The method further includes: The CO concentration at the cutoff location where the cutoff elimination module is located is obtained using the cutoff elimination module, and it is determined whether the CO concentration at the cutoff location is less than a preset CO concentration threshold. If the CO concentration is less than the preset CO concentration threshold, the cutoff parameters of the cutoff elimination module are determined based on the CO concentration at the cutoff location. Based on the cutoff parameters, the CO diffusion zone and the safe zone in the roadway are divided; The method further includes: Obtain the spraying parameter information of the spray elimination module and the cutoff parameters of the cutoff elimination module; The moving speed and recovery range of the CO eliminator recovery module are determined based on the spraying parameter information and the cutoff parameter. Based on the moving speed and recovery range, a synchronous recovery operation is performed on the CO eliminator sprayed by the spray elimination module.

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