CN116950712A - Automatic spraying control system and method for eliminating CO gas on blasting working face - Google Patents
Automatic spraying control system and method for eliminating CO gas on blasting working face Download PDFInfo
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- 238000005507 spraying Methods 0.000 title claims abstract description 142
- 238000005422 blasting Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000003426 co-catalyst Substances 0.000 claims abstract description 107
- 239000003814 drug Substances 0.000 claims description 67
- 239000007921 spray Substances 0.000 claims description 41
- 238000003756 stirring Methods 0.000 claims description 36
- 238000007664 blowing Methods 0.000 claims description 24
- 230000000007 visual effect Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 41
- 239000000843 powder Substances 0.000 description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 208000001408 Carbon monoxide poisoning Diseases 0.000 description 1
- 102000001554 Hemoglobins Human genes 0.000 description 1
- 108010054147 Hemoglobins Proteins 0.000 description 1
- 208000006083 Hypokinesia Diseases 0.000 description 1
- 208000003443 Unconsciousness Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/864—Removing carbon monoxide or hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8696—Controlling the catalytic process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
- B01D53/885—Devices in general for catalytic purification of waste gases
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/502—Carbon monoxide
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- Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
The application provides an automatic spraying control system and method for eliminating CO gas on a blasting and digging working face, wherein the system comprises the following components: the system comprises a CO acquisition module, a control module and a spraying module; the CO acquisition module is used for acquiring the concentration of CO in the area to be eliminated in the roadway; the control module is used for determining a spraying scheme of the CO catalyst according to the CO concentration and generating a control instruction based on the spraying scheme of the CO catalyst; the spraying module is used for executing the control instruction and spraying the CO catalyst; the spraying module is arranged at a position which is away from the roadway blasting working face by a first distance threshold value, and is hung on a track in the roadway. According to the technical scheme provided by the application, the CO gas in the roadway can be actively eliminated according to the concentration of the CO gas, the life safety of operators is effectively ensured, and the operation efficiency is improved.
Description
Technical Field
The application relates to the field of eliminating CO gas in a roadway, in particular to an automatic spraying control system and method for eliminating CO gas on a blasting and digging working face.
Background
The blasting flue gas contains harmful substances such as carbon monoxide in addition to oxygen and nitrogen. The incomplete combustion of the carbon-based material during the blasting operation can generate a large amount of carbon monoxide gas, which is extremely easy to combine with hemoglobin in human body, damage central nerve of human body, and cause the first-line operator to be poisoned and unconscious or even dead. In coal mine underground explosion accidents, more than 70% of victims are caused by carbon monoxide poisoning. At present, the existing blasting working face is basically provided with a mode of increasing fresh air flow to enable the air flow to take away CO gas so as to reduce the concentration of the CO gas, but the technology of eliminating the CO is slower in the toxic gas elimination speed and lower in efficiency, and is not beneficial to blasting first-line personnel operation in a roadway.
Disclosure of Invention
The application provides an automatic spraying control system and method for eliminating CO gas on a blasting and digging working face, which at least solve the technical problems of low speed and low efficiency of eliminating CO in the existing roadway.
An embodiment of a first aspect of the present application provides an automatic spraying control system for eliminating CO gas on a blasting and digging working face, including: the system comprises a CO acquisition module, a control module and a spraying module;
the CO acquisition module is used for acquiring the concentration of CO in the area to be eliminated in the roadway;
the control module is used for determining a spraying scheme of the CO catalyst according to the CO concentration and generating a control instruction based on the spraying scheme of the CO catalyst;
the spraying module is used for executing the control instruction and spraying the CO catalyst;
the spraying module is arranged at a position which is away from the roadway blasting working face by a first distance threshold value, and is hung on a track in the roadway.
Preferably, the system further comprises: a network information exchange module;
the network information exchange module is used for monitoring the concentration of CO in the CO area to be eliminated;
the network information exchange module is also used for receiving control information input by the staff and sending the control information input by the staff to the control module;
the control module is also used for generating a control instruction based on the control information input by the staff and sending the control instruction to the spraying module;
wherein, the network information exchange module includes: a network switch and an operation terminal;
the network switch 4-1 is configured to implement information exchange between the control module 2 and the operation terminal 4-2;
the operation terminal 4-2 is configured to receive control information input by a worker, and is further configured to display CO concentration information in a CO region to be eliminated.
Further, the system further comprises: an alarm module;
the alarm module is used for alarming when the concentration of CO in the CO to-be-eliminated area is larger than a preset first threshold value of the concentration of CO;
the alarm module is also used for carrying out audible and visual alarm when the weight of the CO catalyst in the spraying module is smaller than a preset weight threshold value;
the alarm module is also used for carrying out audible and visual alarm when the CO catalyst in the spraying module is solidified to cause the stirring fan or the fan in the spraying module not to rotate;
the CO acquisition module is also used for alarming when the concentration of CO in the CO area to be eliminated is larger than a preset first threshold value of the concentration of CO.
Further, the spraying module includes: the device comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a medicine box, a rotary spray head, a fan, a stirring fan and a blowing device;
the first electromagnetic valve is used for controlling the wind speed entering the rotary spray head;
the second electromagnetic valve is used for controlling the wind speed for driving the stirring fan to rotate;
the third electromagnetic valve is used for controlling the opening area of the medicine outlet of the medicine box;
the medicine chest is used for placing a CO catalyst;
the rotary spray head is used for spraying the CO catalyst;
the fan is used for driving the stirring fan to rotate;
the stirring fan is used for stirring the CO catalyst to prevent the CO catalyst from solidifying;
the blowing device is used for providing a wind source.
Further, the control module is further configured to select a first spraying scheme of the CO catalyst when the CO concentration in the CO region to be eliminated is greater than a first CO concentration threshold and less than or equal to a second CO concentration threshold, and generate a control instruction based on the first spraying scheme;
and the control module is also used for selecting a second spraying scheme of the CO catalyst when the concentration of CO in the CO region to be eliminated is greater than a second threshold value of the concentration of CO, and generating a control instruction based on the second spraying scheme.
Further, the first spraying scheme includes:
when CO catalyst spraying is carried out, a blowing device, a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve are sequentially opened, the opening gear of the first electromagnetic valve is set to be 1 gear, the opening gear of the second electromagnetic valve is set to be 1 gear, and the opening gear of the third electromagnetic valve is set to be 1 gear;
the second spraying scheme comprises:
when CO catalyst spraying is carried out, the blowing device, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are sequentially opened, the opening gear of the first electromagnetic valve is set to be 2 gear, the opening gear of the second electromagnetic valve is set to be 2 gear, and the opening gear of the third electromagnetic valve is set to be 2 gear;
the wind speed when the first electromagnetic valve and the second electromagnetic valve are opened for 1 gear is smaller than the wind speed when the first electromagnetic valve and the second electromagnetic valve are opened for 2 gears correspondingly;
the opening area of the medicine outlet is one half of the medicine outlet of the medicine box when the third electromagnetic valve is opened for 1 gear, and the opening area of the medicine outlet is the full opening of the medicine outlet of the medicine box when the third electromagnetic valve is opened for 2 gears;
the opening gear of the first electromagnetic valve is determined based on the area of the area to be eliminated with CO;
the opening gear of the second electromagnetic valve and the opening gear of the third electromagnetic valve are determined based on the concentration of CO in the region to be eliminated.
Further, the control module is further configured to generate a control instruction for sequentially closing the second electromagnetic valve, the third electromagnetic valve and the first electromagnetic valve when the CO concentration in the CO region to be eliminated is less than or equal to the first threshold value of the CO concentration after spraying the CO catalyst;
and after the third electromagnetic valve is closed for a first preset time, the first electromagnetic valve and the blowing device are closed.
An embodiment of the second aspect of the present application provides an automatic spraying control method for eliminating CO gas on a blasting working face, the method comprising:
collecting the concentration of CO in a region to be eliminated in a roadway;
determining a spraying scheme of the CO catalyst according to the CO concentration;
spraying of the CO catalyst is performed based on the CO catalyst spraying scheme.
Preferably, the determining a spraying scheme of the CO catalyst according to the CO concentration includes:
when the concentration of CO in the CO area to be eliminated is larger than a first threshold value of the concentration of CO and smaller than or equal to a second threshold value of the concentration of CO, selecting a first spraying scheme of the CO catalyst as a spraying scheme of the CO catalyst;
and when the concentration of CO in the area to be eliminated is larger than a second threshold value of the concentration of CO, selecting a second spraying scheme of the CO catalyst as a spraying scheme of the CO catalyst.
Further, the first spraying scheme includes:
when CO catalyst spraying is carried out, a blowing device, a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve are sequentially opened, the opening gear of the first electromagnetic valve is set to be 1 gear, the opening gear of the second electromagnetic valve is set to be 1 gear, and the opening gear of the third electromagnetic valve is set to be 1 gear;
the second spraying scheme comprises:
when CO catalyst spraying is carried out, the blowing device, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are sequentially opened, the opening gear of the first electromagnetic valve is set to be 2 gear, the opening gear of the second electromagnetic valve is set to be 2 gear, and the opening gear of the third electromagnetic valve is set to be 2 gear;
the wind speed when the first electromagnetic valve and the second electromagnetic valve are opened for 1 gear is smaller than the wind speed when the first electromagnetic valve and the second electromagnetic valve are opened for 2 gears correspondingly;
the opening area of the medicine outlet is one half of the medicine outlet of the medicine box when the third electromagnetic valve is opened for 1 gear, and the opening area of the medicine outlet is the full opening of the medicine outlet of the medicine box when the third electromagnetic valve is opened for 2 gears;
the opening gear of the first electromagnetic valve is determined based on the area of the area to be eliminated with CO;
the opening gear of the second electromagnetic valve and the opening gear of the third electromagnetic valve are determined based on the concentration of CO in the region to be eliminated.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects:
the application provides an automatic spraying control system and method for eliminating CO gas on a blasting working face, wherein the system comprises the following steps: the system comprises a CO acquisition module, a control module and a spraying module; the CO acquisition module is used for acquiring the concentration of CO in the area to be eliminated in the roadway; the control module is used for determining a spraying scheme of the CO catalyst according to the CO concentration and generating a control instruction based on the spraying scheme of the CO catalyst; the spraying module is used for executing the control instruction and spraying the CO catalyst; the spraying module is arranged at a position which is away from the roadway blasting working face by a first distance threshold value, and is hung on a track in the roadway. According to the technical scheme provided by the application, the CO gas in the roadway can be actively eliminated according to the concentration of the CO gas, the life safety of operators is effectively ensured, and the operation efficiency is improved.
Additional aspects and advantages of the 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 the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a first block diagram of an automatic spray control system for eliminating CO gas for a blasting face according to one embodiment of the present application;
FIG. 2 is a second block diagram of an automatic spray control system for eliminating CO gas for a blasting face according to one embodiment of the present application;
FIG. 3 is a third block diagram of an automatic spray control system for eliminating CO gas for a blasting face according to one embodiment of the present application;
FIG. 4 is a flow chart of an automatic spray control method for eliminating CO gas for a blasting face according to an embodiment of the present application;
reference numerals
The system comprises a CO acquisition module 1, a control module 2, a spraying module 3, a network information exchange module 4, a network switch 4-1, an operation terminal 4-2, an alarm module 5, a first electromagnetic valve 3-1, a second electromagnetic valve 3-2, a third electromagnetic valve 3-3, a medicine chest 3-4, a rotary spray head 3-5, a fan 3-6, a stirring fan 3-7 and a blowing device 3-8.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
The application provides an automatic spraying control system and method for eliminating CO gas on a blasting working face, wherein the system comprises the following steps: the system comprises a CO acquisition module, a control module and a spraying module; the CO acquisition module is used for acquiring the concentration of CO in the area to be eliminated in the roadway; the control module is used for determining a spraying scheme of the CO catalyst according to the CO concentration and generating a control instruction based on the spraying scheme of the CO catalyst; the spraying module is used for executing the control instruction and spraying the CO catalyst; the spraying module is arranged at a position which is away from the roadway blasting working face by a first distance threshold value, and is hung on a track in the roadway. According to the technical scheme provided by the application, the CO gas in the roadway can be actively eliminated according to the concentration of the CO gas, the life safety of operators is effectively ensured, and the operation efficiency is improved.
An automatic spraying control system and method for eliminating CO gas for a blasting and digging working face according to the embodiment of the application are described below with reference to the accompanying drawings.
Example 1
Fig. 1 is a block diagram of an automatic spraying control system for eliminating CO gas on a blasting face according to an embodiment of the present application, as shown in fig. 1, the system includes: the system comprises a CO acquisition module 1, a control module 2 and a spraying module 3;
the CO acquisition module 1 is used for acquiring the concentration of CO in a CO region to be eliminated in a roadway; wherein, the CO acquisition module 1 can be composed of a CO sensor;
the control module 2 is used for determining a spraying scheme of the CO catalyst according to the CO concentration and generating a control instruction based on the spraying scheme of the CO catalyst;
the spraying module 3 is used for executing the control instruction and spraying the CO catalyst;
the spraying module 3 is arranged at a position which is away from a roadway blasting working surface by a first distance threshold value, the spraying module 3 is hung on a track in the roadway, and the first distance threshold value can be 20M.
It should be noted that fig. 1 is only a schematic illustration of an automatic spraying control system for spraying CO catalyst, and is not meant to limit the system of the present application.
In an embodiment of the present disclosure, as shown in fig. 2, the system further includes: a network information exchange module 4;
the network information exchange module 4 is used for monitoring the concentration of CO in the CO area to be eliminated;
the network information exchange module 4 is further configured to receive control information input by a worker, and send the control information input by the worker to the control module 2;
the control module 2 is further configured to generate a control instruction based on control information input by the staff, and send the control instruction to the spraying module 3;
wherein, the network information exchange module 4 includes: a network switch 4-1 and an operation terminal 4-2 as shown in fig. 3;
the network switch 4-1 is configured to implement information exchange between the control module 2 and the operation terminal 4-2.
The operation terminal 4-2 is used for receiving control information input by a worker and displaying CO concentration information in a CO region to be eliminated;
in an embodiment of the present disclosure, as shown in fig. 2, the system further includes: an alarm module 5;
the alarm module 5 is used for alarming when the concentration of CO in the area to be eliminated is greater than a preset first threshold value of the concentration of CO; wherein the preset first threshold value of the CO concentration can be 24ppm;
the alarm module 5 is further used for performing audible and visual alarm when the weight of the CO catalyst in the spraying module is smaller than a preset weight threshold; the preset weight threshold may be 300g;
the alarm module 5 is further used for performing audible and visual alarm when the CO catalyst in the spraying module is solidified to cause the stirring fan or the fan in the spraying module not to rotate;
the CO acquisition module 1 is further configured to alarm when the CO concentration in the CO to be eliminated area is greater than a preset first threshold value of CO concentration.
In the disclosed embodiment, as shown in fig. 3, the spray module 3 includes: the device comprises a first electromagnetic valve 3-1, a second electromagnetic valve 3-2, a third electromagnetic valve 3-3, a medicine box 3-4, a rotary spray head 3-5, a fan 3-6, a stirring fan 3-7 and a blowing device 3-8;
the first electromagnetic valve 3-1 is used for controlling the wind speed entering the rotary spray head 3-5;
the second electromagnetic valve 3-2 is used for controlling the wind speed for driving the stirring fan 3-7 to rotate;
the third electromagnetic valve 3-3 is used for controlling the opening area of the medicine outlet of the medicine box 3-4;
the medicine chest 3-4 is used for placing a CO catalyst;
the rotary spray head 3-5 is used for spraying CO catalyst;
the fan 3-6 is used for driving the stirring fan 3-7 to rotate;
the stirring fan 3-7 is used for stirring the CO catalyst to prevent the CO catalyst from solidifying;
the blowing device 3-8 is used for providing a wind source. In the embodiment of the present disclosure, the control module 2 is further configured to select a first spraying scheme of the CO catalyst when the CO concentration in the CO region to be eliminated is greater than a first CO concentration threshold and less than or equal to a second CO concentration threshold, and generate a control instruction based on the first spraying scheme; wherein the second threshold CO concentration may be 100ppm;
wherein the first spray regimen comprises:
when CO catalyst spraying is performed, the blowing device 3-8, the first electromagnetic valve 3-1, the second electromagnetic valve 3-2 and the third electromagnetic valve 3-3 are sequentially opened, the opening gear of the first electromagnetic valve 3-1 is set to be 1 gear, the opening gear of the second electromagnetic valve 3-2 is set to be 1 gear, and the opening gear of the third electromagnetic valve 3-3 is set to be 1 gear;
the control module 2 is further configured to select a second spraying scheme of the CO catalyst when the CO concentration in the CO region to be eliminated is greater than a second threshold of the CO concentration, and generate a control instruction based on the second spraying scheme.
Wherein the second spray regimen comprises:
when CO catalyst spraying is performed, the blowing device 3-8, the first electromagnetic valve 3-1, the second electromagnetic valve 3-2 and the third electromagnetic valve 3-3 are sequentially opened, the opening gear of the first electromagnetic valve 3-1 is set to be 2 gear, the opening gear of the second electromagnetic valve 3-2 is set to be 2 gear, and the opening gear of the third electromagnetic valve 3-3 is set to be 2 gear;
it should be noted that, the wind speed when the first electromagnetic valve 3-1 and the second electromagnetic valve 3-2 are opened for 1 gear is smaller than the wind speed when the corresponding electromagnetic valve is opened for 2 gears;
the opening area of the medicine outlet is one half of the medicine outlet of the medicine box when the third electromagnetic valve 3-3 is opened for 1 gear, and the opening area of the medicine outlet is the full opening of the medicine outlet of the medicine box when the third electromagnetic valve 3-3 is opened for 2 gears;
the opening gear of the first electromagnetic valve 3-1 is determined based on the area of the area to be eliminated with CO;
the opening gear of the second electromagnetic valve 3-2 and the opening gear of the third electromagnetic valve 3-3 are determined based on the concentration of CO in the region to be eliminated.
It is to be noted that, considering that CO gas is filled in the air after the tunnel blasting working face is blasted, the space volume filled with CO is assumed to be V C The real-time concentration of CO gas is c, and the initial concentration of toxic gas is c 0 . We can according to the concentration c of CO gas and the release amount of CO catalyst in the tunnelRelation of +.>The release amount required by the CO catalyst is determined, wherein eta is the purification efficiency, and when the real-time concentration of CO gas is calculated to be c, namely the target concentration of CO is calculated, namely the CO is reduced to the concentration, so that the CO does not harm human bodies.
In this embodiment of the disclosure, the control module 2 is further configured to generate a control instruction to sequentially close the second electromagnetic valve 3-2, the third electromagnetic valve 3-3, and the first electromagnetic valve 3-1 when the CO concentration in the CO region to be eliminated is less than or equal to the first threshold value of the CO concentration after spraying the CO catalyst, where the first electromagnetic valve 3-1 and the blower 3-8 are closed after the third electromagnetic valve 3-3 is closed for a first preset time, and the first preset time may be 1 minute.
Further, the control module 2 is formed by the PLC controller, and a first threshold value of CO concentration, a second threshold value of CO concentration, a weight threshold value, a solenoid valve control instruction corresponding to the first spraying scheme, a solenoid valve control instruction corresponding to the second spraying scheme, and the like are provided in the PLC controller.
Note that, the present application is not limited to the above-described embodiments. Because a large amount of CO gas flows into the tunnel after the underground blasting working face of the coal mine is blasted and tunneled, when the concentration of the CO gas in the tunnel exceeds 24ppm, alarms can be generated in the tunnel and a coal mine dispatching room, the frequent alarms can influence the working progress of workers, and secondly, a large amount of CO gas can influence operators, when the concentration of CO in the environment exceeds 100ppm, discomfort such as dizziness, hypodynamia and the like can be generated on a human body; when the carbon monoxide concentration exceeds 600ppm, choking death is caused in a short period of time.
Based on the above-mentioned problems, the automatic spraying control system for eliminating CO gas on the blasting and digging working face provided by the embodiment of the disclosure is described in detail as follows:
1) The spraying module 3 is arranged at a position which is far away from the roadway blasting working surface 20M, and a first threshold value of CO concentration, a second threshold value of CO concentration, a weight threshold value, an electromagnetic valve control instruction corresponding to a first spraying scheme, an electromagnetic valve control instruction corresponding to a second spraying scheme and the like are arranged in the control module 2.
2) The CO concentration in the area to be eliminated is acquired by utilizing the CO acquisition module 1;
and when the concentration of CO in the CO area to be eliminated is more than 24ppm, the CO acquisition module 1 alarms.
3) Determining a spraying scheme of the CO catalyst according to the CO concentration, generating a control instruction based on the spraying scheme of the CO catalyst, and then executing the control instruction to spray the CO catalyst;
wherein, 1, when the concentration of CO in the CO area to be eliminated is more than 24ppm and less than or equal to 100 ppm:
the control module 2 firstly controls the blowing device 3-8 and the first electromagnetic valve 3-1 to be opened, and sets the opening gear of the first electromagnetic valve 3-1 to be 1 gear, and air flow enters the rotary spray head 3-5 from the medicine outlet of the medicine box 3-4, so that the cleaning effect of the rotary spray head 3-5 can be achieved when no CO catalyst enters; when CO catalyst powder enters, the powder can be driven to enter the rotary spray head 3-5, so that the CO catalyst powder is uniformly sprayed in a roadway;
then the second electromagnetic valve 3-2 is controlled to be opened, the opening gear of the second electromagnetic valve 3-2 is set to be 1 gear, wind flow enters the medicine box 3-4 from the air inlet, the wind flow impacts the fan 3-6 to drive the fan 3-6 to rotate, and the rotation of the fan 3-6 can drive the stirring fan 3-7 to rotate through the connecting gear. The stirring fans 3-7 are divided into two, one stirring fan is arranged in the middle of the medicine box 3-4, the other stirring fan is arranged at the position of 2cm above the outlet of the medicine box 3-4, the stirring fan is arranged in the middle of the medicine box 3-4 and is used for stirring CO catalyst powder so that the CO catalyst powder is not solidified, the stirring fan at the outlet of the medicine box 3-4 is used for stirring the CO catalyst powder for the second time, and the CO catalyst powder can be discharged to the medicine outlet.
Finally, the third electromagnetic valve 3-3 is controlled to be opened, the opening gear of the third electromagnetic valve 3-3 is set to be 1 gear, CO catalyst powder is driven by wind flow from a medicine outlet to enter the rotary spray head 3-5 so as to be uniformly sprayed into a roadway, and CO gas in the roadway is catalyzed and eliminated;
when the concentration of CO in the area to be eliminated is detected to be more than 24ppm and less than or equal to 100ppm, an alarm module 5 is utilized to alarm, and concentration information in the roadway is sent to the operation terminal 4-2 for display;
2. when the CO concentration in the CO zone to be eliminated is greater than 100 ppm:
the control module 2 firstly controls the blowing device 3-8 and the first electromagnetic valve 3-1 to be opened, and sets the opening gear of the first electromagnetic valve 3-1 to be 2 gear, and air flow enters the rotary spray head 3-5 from the medicine outlet of the medicine box 3-4, so that the cleaning effect of the rotary spray head 3-5 can be achieved when no CO catalyst enters; when CO catalyst powder enters, the powder can be driven to enter the rotary spray head 3-5, so that the CO catalyst powder is uniformly sprayed in a roadway;
then the second electromagnetic valve 3-2 is controlled to be opened, the opening gear of the second electromagnetic valve 3-2 is set to be 2 gear, wind flow enters the medicine box 3-4 from the air inlet, the wind flow impacts the fan 3-6 to drive the fan 3-6 to rotate, and the rotation of the fan 3-6 can drive the stirring fan 3-7 to rotate through the connecting gear. The stirring fans 3-7 are divided into two, one stirring fan is arranged in the middle of the medicine box 3-4, the other stirring fan is arranged at the position of 2cm above the outlet of the medicine box 3-4, the stirring fan is arranged in the middle of the medicine box 3-4 and is used for stirring CO catalyst powder so that the CO catalyst powder is not solidified, the stirring fan at the outlet of the medicine box 3-4 is used for stirring the CO catalyst powder for the second time, and the CO catalyst powder can be discharged to the medicine outlet.
Finally, the third electromagnetic valve 3-3 is controlled to be opened, the opening gear of the third electromagnetic valve 3-3 is set to be 2 gear, CO catalyst powder is driven by wind flow from a medicine outlet to enter the rotary spray head 3-5 so as to be uniformly sprayed into a roadway, and CO gas in the roadway is catalyzed and eliminated;
and simultaneously, when the concentration of CO in the area to be eliminated is detected to be more than 100ppm, an alarm module 5 is utilized for alarming, and the concentration information in the roadway is sent to the operation terminal 4-2 for display.
3. Monitoring the concentration of CO in a roadway in real time after spraying the CO catalyst, and when the concentration of CO in the CO area to be eliminated is smaller than or equal to the first threshold value of the concentration of CO;
sequentially closing the second electromagnetic valve 3-2, the third electromagnetic valve 3-3 and the first electromagnetic valve 3-1 by using a control module 2; the first electromagnetic valve 3-1 and the blowing device 3-8 are closed after the third electromagnetic valve 3-3 is closed for 1 minute, so that the rotary spray head is flushed, the blockage of the spray head caused by residual powder in the rotary spray head is prevented, and meanwhile, the concentration information in the roadway is sent to the operation terminal 4-2 for display.
It should be noted that, when the weights of the CO catalysts in the spraying modules 3 are smaller than the preset weight threshold and/or the CO catalysts solidify during spraying, the stirring fan or the fan in the spraying module 3 is not rotated, the alarm module 5 is used for performing audible and visual alarm.
In summary, the automatic spraying control system for eliminating the CO gas on the blasting and digging working face provided by the embodiment can realize the following effects: (1) CO gas generated in tunnel blasting engineering is quickly reduced to engineering requirements, so that the traditional waiting time is reduced, and the working efficiency is improved; (2) The system can be actively started according to the concentration of CO gas in a roadway, and is monitored by operators at a terminal, so that excessive CO gas is prevented from being inhaled in early stage; (3) The whole set of device sprays powdery CO catalyst on the roadway area, can regulate and control according to the concentration of CO gas in the roadway, and realizes the active and rapid CO elimination function of the mine roadway; (4) The PLC is the core of the whole system, can execute commands at an operation terminal, can set a threshold value and an opening sequence of an electromagnetic valve in the PLC, actively reduces the concentration of CO gas, and provides technical support for modern intelligent mines.
Example two
Fig. 4 is a flowchart of an automatic spraying control method for eliminating CO gas on a blasting face according to an embodiment of the present application, as shown in fig. 4, the method includes:
step 1: collecting the concentration of CO in a region to be eliminated in a roadway;
step 2: determining a spraying scheme of the CO catalyst according to the CO concentration;
step 3: spraying of the CO catalyst is performed based on the CO catalyst spraying scheme.
In an embodiment of the disclosure, the determining a spraying scheme of the CO catalyst according to the CO concentration includes:
when the concentration of CO in the CO area to be eliminated is larger than a first threshold value of the concentration of CO and smaller than or equal to a second threshold value of the concentration of CO, selecting a first spraying scheme of the CO catalyst as a spraying scheme of the CO catalyst;
and when the concentration of CO in the area to be eliminated is larger than a second threshold value of the concentration of CO, selecting a second spraying scheme of the CO catalyst as a spraying scheme of the CO catalyst.
Further, the first spraying scheme includes:
when CO catalyst spraying is carried out, a blowing device, a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve are sequentially opened, the opening gear of the first electromagnetic valve is set to be 1 gear, the opening gear of the second electromagnetic valve is set to be 1 gear, and the opening gear of the third electromagnetic valve is set to be 1 gear;
the second spraying scheme comprises:
when CO catalyst spraying is carried out, the blowing device, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are sequentially opened, the opening gear of the first electromagnetic valve is set to be 2 gear, the opening gear of the second electromagnetic valve is set to be 2 gear, and the opening gear of the third electromagnetic valve is set to be 2 gear;
the wind speed when the first electromagnetic valve and the second electromagnetic valve are opened for 1 gear is smaller than the wind speed when the first electromagnetic valve and the second electromagnetic valve are opened for 2 gears correspondingly;
the opening area of the medicine outlet is one half of the medicine outlet of the medicine box when the third electromagnetic valve is opened for 1 gear, and the opening area of the medicine outlet is the full opening of the medicine outlet of the medicine box when the third electromagnetic valve is opened for 2 gears;
the opening gear of the first electromagnetic valve is determined based on the area of the area to be eliminated with CO;
the opening gear of the second electromagnetic valve and the opening gear of the third electromagnetic valve are determined based on the concentration of CO in the region to be eliminated.
In summary, the automatic spraying control method for eliminating the CO gas on the blasting and digging working face provided by the embodiment can actively eliminate the CO gas according to the concentration of the CO gas in the roadway, so that the life safety of operators is effectively ensured, and the working efficiency is improved.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (10)
1. An automatic spray control system for eliminating CO gas on a blasting working face, which is characterized by comprising: the system comprises a CO acquisition module, a control module and a spraying module;
the CO acquisition module is used for acquiring the concentration of CO in the area to be eliminated in the roadway;
the control module is used for determining a spraying scheme of the CO catalyst according to the CO concentration and generating a control instruction based on the spraying scheme of the CO catalyst;
the spraying module is used for executing the control instruction and spraying the CO catalyst;
the spraying module is arranged at a position which is away from the roadway blasting working face by a first distance threshold value, and is hung on a track in the roadway.
2. The automatic spray control system of claim 1, wherein the system further comprises: a network information exchange module;
the network information exchange module is used for monitoring the concentration of CO in the CO area to be eliminated;
the network information exchange module is also used for receiving control information input by the staff and sending the control information input by the staff to the control module;
the control module is also used for generating a control instruction based on the control information input by the staff and sending the control instruction to the spraying module;
wherein, the network information exchange module includes: a network switch and an operation terminal;
the network switch 4-1 is configured to implement information exchange between the control module 2 and the operation terminal 4-2;
the operation terminal 4-2 is configured to receive control information input by a worker, and is further configured to display CO concentration information in a CO region to be eliminated.
3. The automatic spray control system of claim 2, wherein the system further comprises: an alarm module;
the alarm module is used for alarming when the concentration of CO in the CO to-be-eliminated area is larger than a preset first threshold value of the concentration of CO;
the alarm module is also used for carrying out audible and visual alarm when the weight of the CO catalyst in the spraying module is smaller than a preset weight threshold value;
the alarm module is also used for carrying out audible and visual alarm when the CO catalyst in the spraying module is solidified to cause the stirring fan or the fan in the spraying module not to rotate;
the CO acquisition module is also used for alarming when the concentration of CO in the CO area to be eliminated is larger than a preset first threshold value of the concentration of CO.
4. The automatic spray control system of claim 3 in which the spray module comprises: the device comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a medicine box, a rotary spray head, a fan, a stirring fan and a blowing device;
the first electromagnetic valve is used for controlling the wind speed entering the rotary spray head;
the second electromagnetic valve is used for controlling the wind speed for driving the stirring fan to rotate;
the third electromagnetic valve is used for controlling the opening area of the medicine outlet of the medicine box;
the medicine chest is used for placing a CO catalyst;
the rotary spray head is used for spraying the CO catalyst;
the fan is used for driving the stirring fan to rotate;
the stirring fan is used for stirring the CO catalyst to prevent the CO catalyst from solidifying;
the blowing device is used for providing a wind source.
5. The automatic spray control system of claim 4 wherein the control module is further configured to select a first spray schedule of the CO catalyst and generate a control instruction based on the first spray schedule when the CO concentration in the CO zone to be eliminated is greater than a first CO concentration threshold and less than or equal to a second CO concentration threshold;
and the control module is also used for selecting a second spraying scheme of the CO catalyst when the concentration of CO in the CO region to be eliminated is greater than a second threshold value of the concentration of CO, and generating a control instruction based on the second spraying scheme.
6. The automatic spray control system of claim 5 in which the first spray schedule comprises:
when CO catalyst spraying is carried out, a blowing device, a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve are sequentially opened, the opening gear of the first electromagnetic valve is set to be 1 gear, the opening gear of the second electromagnetic valve is set to be 1 gear, and the opening gear of the third electromagnetic valve is set to be 1 gear;
the second spraying scheme comprises:
when CO catalyst spraying is carried out, the blowing device, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are sequentially opened, the opening gear of the first electromagnetic valve is set to be 2 gear, the opening gear of the second electromagnetic valve is set to be 2 gear, and the opening gear of the third electromagnetic valve is set to be 2 gear;
the wind speed when the first electromagnetic valve and the second electromagnetic valve are opened for 1 gear is smaller than the wind speed when the first electromagnetic valve and the second electromagnetic valve are opened for 2 gears correspondingly;
the opening area of the medicine outlet is one half of the medicine outlet of the medicine box when the third electromagnetic valve is opened for 1 gear, and the opening area of the medicine outlet is the full opening of the medicine outlet of the medicine box when the third electromagnetic valve is opened for 2 gears;
the opening gear of the first electromagnetic valve is determined based on the area of the area to be eliminated with CO;
the opening gear of the second electromagnetic valve and the opening gear of the third electromagnetic valve are determined based on the concentration of CO in the region to be eliminated.
7. The automatic spray control system of claim 5, wherein the control module is further configured to generate a control command to sequentially close the second solenoid valve, the third solenoid valve, and the first solenoid valve when the CO concentration in the CO region to be eliminated is less than or equal to the first CO concentration threshold after spraying the CO catalyst;
and after the third electromagnetic valve is closed for a first preset time, the first electromagnetic valve and the blowing device are closed.
8. An automatic spraying control method for eliminating CO gas of a blasting face based on the automatic spraying control system for eliminating CO gas of a blasting face according to any one of claims 1 to 7, the method comprising:
collecting the concentration of CO in a region to be eliminated in a roadway;
determining a spraying scheme of the CO catalyst according to the CO concentration;
spraying of the CO catalyst is performed based on the CO catalyst spraying scheme.
9. The method of claim 8, wherein said determining a spraying schedule of CO catalyst based on said CO concentration comprises:
when the concentration of CO in the CO area to be eliminated is larger than a first threshold value of the concentration of CO and smaller than or equal to a second threshold value of the concentration of CO, selecting a first spraying scheme of the CO catalyst as a spraying scheme of the CO catalyst;
and when the concentration of CO in the area to be eliminated is larger than a second threshold value of the concentration of CO, selecting a second spraying scheme of the CO catalyst as a spraying scheme of the CO catalyst.
10. The method of claim 9, wherein the first spraying scheme comprises:
when CO catalyst spraying is carried out, a blowing device, a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve are sequentially opened, the opening gear of the first electromagnetic valve is set to be 1 gear, the opening gear of the second electromagnetic valve is set to be 1 gear, and the opening gear of the third electromagnetic valve is set to be 1 gear;
the second spraying scheme comprises:
when CO catalyst spraying is carried out, the blowing device, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are sequentially opened, the opening gear of the first electromagnetic valve is set to be 2 gear, the opening gear of the second electromagnetic valve is set to be 2 gear, and the opening gear of the third electromagnetic valve is set to be 2 gear;
the wind speed when the first electromagnetic valve and the second electromagnetic valve are opened for 1 gear is smaller than the wind speed when the first electromagnetic valve and the second electromagnetic valve are opened for 2 gears correspondingly;
the opening area of the medicine outlet is one half of the medicine outlet of the medicine box when the third electromagnetic valve is opened for 1 gear, and the opening area of the medicine outlet is the full opening of the medicine outlet of the medicine box when the third electromagnetic valve is opened for 2 gears;
the opening gear of the first electromagnetic valve is determined based on the area of the area to be eliminated with CO;
the opening gear of the second electromagnetic valve and the opening gear of the third electromagnetic valve are determined based on the concentration of CO in the region to be eliminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310786085.XA CN116950712A (en) | 2023-06-29 | 2023-06-29 | Automatic spraying control system and method for eliminating CO gas on blasting working face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310786085.XA CN116950712A (en) | 2023-06-29 | 2023-06-29 | Automatic spraying control system and method for eliminating CO gas on blasting working face |
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| CN116950712A true CN116950712A (en) | 2023-10-27 |
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| CN202310786085.XA Pending CN116950712A (en) | 2023-06-29 | 2023-06-29 | Automatic spraying control system and method for eliminating CO gas on blasting working face |
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| Country | Link |
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| CN (1) | CN116950712A (en) |
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