CN113030391A - Full-section monitoring method for toxic and harmful gas in blasting smoke of underground space - Google Patents
Full-section monitoring method for toxic and harmful gas in blasting smoke of underground space Download PDFInfo
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- CN113030391A CN113030391A CN202110288129.7A CN202110288129A CN113030391A CN 113030391 A CN113030391 A CN 113030391A CN 202110288129 A CN202110288129 A CN 202110288129A CN 113030391 A CN113030391 A CN 113030391A
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- 238000005422 blasting Methods 0.000 title claims abstract description 92
- 239000000779 smoke Substances 0.000 title claims abstract description 68
- 238000012544 monitoring process Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 22
- 231100000331 toxic Toxicity 0.000 title claims abstract description 22
- 230000002588 toxic effect Effects 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 231100000572 poisoning Toxicity 0.000 claims abstract description 8
- 230000000607 poisoning effect Effects 0.000 claims abstract description 8
- 238000012806 monitoring device Methods 0.000 claims abstract description 7
- 239000003517 fume Substances 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 23
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 239000011435 rock Substances 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 5
- 239000002360 explosive Substances 0.000 claims description 5
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 4
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 abstract description 7
- 206010003497 Asphyxia Diseases 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 description 5
- 230000005641 tunneling Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0042—SO2 or SO3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0044—Sulphides, e.g. H2S
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0054—Ammonia
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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Abstract
The invention discloses a full-section monitoring method for toxic and harmful gas in blasting smoke in underground space, wherein a chassis (1) is of a triangular or quadrilateral planar arrangement structure, walking wheels (3) are arranged below the chassis (1), and the walking wheels (3) are controlled by a walking driver (4) and are remotely controlled by an operator in a wireless or wired mode; the support frame (5) is of a square frame structure, a blasting working face (17) is vertically arranged in the center of the chassis (1), and the blasting smoke monitor (10) is arranged in a protection box (9) on the movable rod (7); the walking driver (4) is controlled through the controller, the special blasting smoke monitoring device is walked to a safe distance position which is more than 5m away from a blasting working surface, and the moving rod driver (6) is remotely controlled to enable the moving rod (7) to move left and right on the support frame (5). The invention can prevent the smoke poisoning and suffocation accident of the blasting gun, improve the production operation safety and simultaneously reduce the blasting ventilation time and the power consumption of the underground space.
Description
Technical Field
The invention belongs to the technical field of toxic and harmful gas monitoring in blasting engineering, and particularly relates to a full-section monitoring method for toxic and harmful gas in blast fume generated in blasting operation of underground space, which can be widely applied to the field of blast fume monitoring of underground space blasting in underground mines, highway tunnels, railway tunnels and the like.
Background
Explosive blasting is the most economic and efficient rock breaking means which is currently acknowledged, but meanwhile, explosive blasting also causes the problem of blasting smoke hazard control; the blasting smoke contains a large amount of toxic and harmful gases such as carbon monoxide, nitrogen oxide and the like, so that the blasting smoke not only pollutes the production operation environment, but also seriously threatens the health and life safety of field operation personnel, and simultaneously pollutes the air environment when being discharged into the atmosphere. When underground spaces such as underground mines and tunnels are blasted, the production working face is narrow, the field ventilation condition is poor, blasting smoke is slowly diluted and diffused, blasting smoke poisoning accidents are easily caused, once the blasting smoke poisoning accidents happen, accidents are more casualties, and the economic and property losses are serious.
Currently, mechanical ventilation is usually used to remove the blast fumes from the working surface. In order to effectively master the smoke concentration of blasting on a field working face, a toxic and harmful gas monitor is usually adopted for field monitoring, however, the toxic and harmful gas monitor is usually fixed on a roadway wall, the monitoring position cannot move freely, only the gas concentration at the roadway wall can be mastered, the distribution state of toxic and harmful gas at different positions of the full section cannot be determined, and meanwhile, the concentration of the toxic and harmful gas at different distances from the blasting position cannot be measured.
Due to the different ventilation modes of the tunneling working face, the concentrations of toxic and harmful gases at different positions of the same section are different. Therefore, how to automatically and efficiently monitor the concentrations of poisonous and harmful gases in different positions is crucial to comprehensively master the distribution rule of blasting smoke, and has important significance for determining reliable ventilation time and saving energy and reducing consumption.
Disclosure of Invention
The invention provides a full-section monitoring method for toxic and harmful gas in blasting underground space, which aims to master the concentration distribution state and evolution rule of the blasting smoke of the full-section blasting underground space and provide a guidance basis for production operation safety.
In order to realize the aim, the invention discloses a full-section monitoring method for toxic and harmful gas in underground space blasting smoke, which adopts the following technical scheme:
1) the special fume monitoring device comprises a fume monitor and a fume monitor installation device; the device for installing the gun smoke monitor comprises a chassis, an ellipsoid balancer, a traveling wheel, a traveling driver, a support frame, a movable rod driver, a movable rod, an infrared distance detector and an image acquisition instrument; the chassis is of a triangular or quadrangular plane arrangement structure and has a certain thickness so as to improve the overall stability of the device; an ellipsoid balancer; the self-balancing device is positioned in the center of the chassis, so that the self-balancing stability of the device in a complex environment can be ensured, and the self-balancing device is suitable for the uneven terrain condition; the walking wheels are arranged below the chassis, the walking driver is controlled to be arranged on the outer side of the chassis, and the walking wheels are controlled by the walking driver and are remotely controlled by an operator in a wireless or wired mode; the support frame is of a square frame structure, the blasting working face is vertically arranged in the center of the chassis, the support frame is made of high-strength hard materials and used for fixedly supporting the moving rod, and the size of the support frame can be flexibly controlled according to the size of the tunneling working face; the movable rod is vertically arranged on the upper frame and the lower frame of the support frame through the sliding clamp, the movable rod is connected with the movable rod driver, and the movable rod can be remotely controlled to flexibly move on the support frame through the movable rod driver so as to adjust a proper monitoring position and realize the monitoring of the blast smoke at different positions of the tunneling section; the blasting smoke monitor is arranged in a protective box on the movable rod, so that the blasting scattered rock blocks can be prevented from damaging the blasting smoke monitor, and the blasting smoke monitor is not influenced; a fixing frame is vertically arranged on one side of the chassis close to the blasting working surface, and the infrared distance detector and the image acquisition instrument are arranged on the fixing frame; the moving rod is formed by reversely buckling two U-shaped components and fixing the U-shaped components through fixing pins, and the cable of the monitor is positioned in a closed space in the moving rod, so that the cable can be prevented from being damaged by blasting scattered rocks; the movable rod is made of a high-strength hard material, and the size of the movable rod can be flexibly adjusted according to the width and height parameters of the tunneling working face so as to adapt to the change of the conditions of the field working face.
The infrared distance detector is provided with a positioner and used for accurately mastering the distance between the device and a working surface; the image acquisition instrument is close to the infrared distance detector and is used for detecting image data in front of the walking of the device and providing an operation decision basis for operators.
2) The monitoring implementation steps are as follows:
drilling a blast hole at a designed position of a blasting working surface of a rock mass, and completing field charging, blocking and network connection according to blasting design charging quantity and a detonator section;
secondly, the remote operator is positioned at a safe place at the upwind side, and the designed smoke monitor is arranged in a protection box on a moving rod of the device; a monitor cable of the smoke monitor is led out from a closed space in the movable rod in a penetrating way;
thirdly, controlling a walking driver through a controller, walking the special blasting smoke monitoring device to a safe distance position which is more than 5m away from a blasting working surface, detecting the safe distance by an infrared distance detector, and respectively returning distance and video image data to a remote operator by the infrared distance detector and an image acquisition instrument so as to provide decision basis for the operator;
fourthly, remotely controlling a driver of the movable rod to enable the movable rod to move left and right on the support frame according to different monitoring positions, and adjusting the movable rod to a proper blasting smoke monitoring position so as to meet the monitoring requirements of different positions of the same section;
detonating the detonator and the explosive in the blast hole by using a blasting detonator to finish the blasting operation process; starting a ventilator to ventilate and smoke exhaust on a working surface;
sixthly, remotely controlling and opening a working button of the cigarette blasting monitor to start on-site monitoring work;
seventhly, remotely and online reading blasting smoke concentration data and a change curve measured by a blasting smoke monitor by an operator on a notebook computer; after the monitoring time requirement is met, closing a working button of the fume monitor, and stopping monitoring;
and (8) arranging instruments and equipment to complete field monitoring work.
The field monitoring time is controlled within the range of 30-60 minutes, the national specified safe production operation condition needs to be met, and the operator blasting gun smoke poisoning accident is avoided.
The protection box is in a mesh-shaped square structure, and the size of a mesh is 1-5 mm; explosion-proof glass and a flexible buffer cushion layer are arranged on the outer sides of the infrared distance detector and the image acquisition instrument.
The number of the smoke monitor is 1, 2 or more, and the number of the protection boxes is the same as that of the smoke monitors; harmful gases detected by the smoke monitor comprise carbon monoxide, nitric oxide, nitrogen dioxide, sulfur dioxide, ammonia gas, hydrogen sulfide and the like; according to the arrangement requirement of the on-site flue gas monitoring instrument, 1, 2 or more movable rods can be arranged on the movable rods, so that the requirement that a plurality of monitoring points are arranged at different positions at the same time is met; each of the fume monitoring instruments is dedicated to monitoring one of carbon monoxide, nitric oxide, nitrogen dioxide, sulfur dioxide, ammonia gas and hydrogen sulfide.
The walking wheel be multidirectional wheel, arrange 3, 4 or 5 according to on-the-spot needs, the nimble rotation that can be free improves walking convenience and flexibility.
The mobile walking of the device is controlled by adopting a battery driving or line power supply driving mode, and a rubber wheel or crawler type walking mode can be determined according to the field operation condition so as to adapt to the complex terrain condition.
The full-section monitoring method for the toxic and harmful gas in the blasting smoke of the underground space has the following positive effects after adopting the technical scheme:
(1) the concentration distribution and the evolution rule of the smoke of the full-section blasting gun in the roadway can be accurately mastered, the poisoning and suffocation accidents of the blasting gun smoke are prevented, the guarantee is provided for the life safety of production operators, and the subsequent production operation efficiency is improved.
(2) The optimal ventilation time for discharging the blast smoke on the working face can be determined, the blasting ventilation and smoke discharge cost is reduced, energy conservation and consumption reduction are realized, the production cost is reduced, and remarkable economic benefits are created.
(3) The device walking mobility and flexibility are strong, have stronger climbing and obstacle-crossing ability, satisfy unevenness's complex environment walking requirement, and possess the remote control function, intelligent high, safe and reliable of level can ensure on-the-spot monitoring personnel's safety, alleviate monitoring personnel intensity of labour, improve monitoring operation efficiency.
Drawings
FIG. 1 is a schematic front view of an installation device for an underground space blasting smoke monitor used in the present invention;
FIG. 2 is a schematic side view of an underground space blasting smoke monitor installation apparatus employed in the present invention in a heading face;
FIG. 3 is a schematic top view of a chassis arrangement when the installation apparatus for an underground space blasting smoke monitor employed in the present invention employs 3 traveling wheels;
FIG. 4 is a schematic top view of a chassis arrangement when the installation apparatus for an underground space blasting smoke monitor employed in the present invention employs 4 traveling wheels;
fig. 5 is a cross-sectional view of the travel bar (7) of fig. 1.
The reference signs are: 1-a chassis; 2-an ellipsoid balancer; 3-walking wheels; 4-a walking driver; 5-a support frame; 6-a travel bar drive; 7-moving the rod; 8-a slide card; 9-a protection box; 10-a flue gas monitor; 11-infrared range finder; 12-an image acquisition instrument; a 13-U shaped member; 14-monitor cable; 15-a fixed pin; 16-rock mass; 17-blasting working face; 18-blast hole; 19-fixing frame.
Detailed Description
In order to better describe the invention, the following describes the whole section monitoring method of toxic and harmful gas of blasting smoke in underground space in detail with reference to the attached drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention is shown in figure 1, and is seen from the front view schematic diagram of the device for installing the underground space blasting smoke monitor and the combination of figures 2, 3, 4 and 5, the invention discloses a full-section monitoring method for toxic and harmful gas of underground space blasting smoke, which adopts the following technical scheme:
1) the special fume monitoring device comprises a fume monitor 10 and a fume monitor installation device; the device for installing the fume monitoring instrument comprises a chassis 1, an ellipsoid balancer 2, a traveling wheel 3, a traveling driver 4, a support frame 5, a movable rod driver 6, a movable rod 7, an infrared distance detector 11 and an image acquisition instrument 12; the chassis 1 is a triangular or quadrangular plane arrangement structure, the ellipsoid balancer 2 is positioned at the center of the chassis 1, the walking wheels 3 are arranged below the chassis 1, the walking driver control 4 is arranged on the outer side of the chassis 1, the walking wheels 3 are multidirectional wheels, 3, 4 or 5 walking wheels are arranged according to the field requirement, and the walking wheels 3 are controlled by the walking driver 4 and are remotely controlled by an operator in a wireless or wired mode; the mobile walking of the device is controlled by adopting a battery driving or line power supply driving mode, and a rubber wheel or crawler type walking mode can be determined according to the field operation condition so as to adapt to the complex terrain condition. The support frame 5 is of a square frame structure, and a blasting facing working surface 17 is vertically arranged in the center of the chassis 1; the moving rod 7 is vertically arranged on the upper frame and the lower frame of the support frame 5 through a sliding card 8, and the moving rod 7 is connected with a moving rod driver 6; the flue gas monitoring instrument 10 is arranged in a protection box 9 on the movable rod 7, the protection box 9 is in a mesh-shaped square structure, and the size of a mesh is 1-5 mm; a fixing frame 19 is vertically arranged on one side of the chassis 1 close to the blasting working surface 17, the infrared distance detector 11 and the image acquisition instrument 12 are arranged on the fixing frame 19, and explosion-proof glass and a flexible buffer cushion layer are arranged on the outer sides of the infrared distance detector 11 and the image acquisition instrument 12; the moving rod 7 is formed by reversely buckling two U-shaped components 13 and fixing the U-shaped components through a fixing pin 15, and the monitor cable 14 is positioned in a closed space in the moving rod 7; the movement of the movable rod 7 on the support frame 5 is remotely controlled through the movable rod driver 6, and the proper monitoring position is adjusted, so that the blast smoke monitoring of different positions of the tunneling section is realized. Accurately grasping the safe distance between the device and the blasting working surface 17 by an infrared distance detector 11; the image data in front of the device walking is remotely transmitted to the operator through the image acquisition instrument 12 so as to make an accurate decision.
The blast fume monitor 10 be a plurality of, carriage release lever 7 be 1 ~ 3, every blast fume monitor 10 is exclusively used in one of monitoring carbon monoxide, nitric oxide, nitrogen dioxide, sulfur dioxide, ammonia and hydrogen sulfide.
2) The monitoring implementation steps are as follows:
firstly, drilling a blast hole 18 at the designed position of a blasting working surface 17 of a rock mass 16, and completing field charging, blocking and network connection work according to blasting design charge and a detonator section;
secondly, a remote operator is positioned at a safe place at the upwind side, and a designed fume monitor 10 is arranged in a protection box 9 on the device moving rod 7; the monitor cable 14 of the smoke monitor 10 is led out from the closed space in the movable rod 7 through penetration;
thirdly, the walking driver 4 is controlled by the controller, the special blasting smoke monitoring device is walked to a position away from the blasting working surface 17 by a certain safety distance, generally a safety distance position of more than 5m, and field flexible control can be performed according to requirements; the safe distance is detected by an infrared distance detector 11, and distance and video image data are respectively transmitted back to a remote control personnel by the infrared distance detector 11 and an image acquisition instrument 12, so that a decision basis is provided for the control personnel;
fourthly, remotely controlling the movable rod driver 6 to enable the movable rod 7 to move left and right on the support frame 5 according to different monitoring positions, and adjusting to the proper blasting smoke monitoring position to meet the monitoring requirements of different positions of the same section;
detonating the detonator and the explosive in the blast hole 18 by using a blasting detonator to finish the blasting operation process; starting a ventilator to ventilate and smoke exhaust on a working surface;
sixthly, remotely controlling and starting a working button of the cigarette blasting monitor 10 to start on-site monitoring work; the field monitoring time is controlled within the range of 30-60 minutes, the national specified safe production operation condition needs to be met, and the operator blasting gun smoke poisoning accident is avoided.
Seventhly, remotely and online reading the blasting smoke concentration data and the change curve measured by the blasting smoke monitor 10 by an operator on a notebook computer; after the requirement of monitoring time is met, a working button of the fume monitor 10 is closed, and the monitoring work is stopped;
and (8) arranging instruments and equipment to complete field monitoring work.
Experimental research shows that the method can accurately master the concentration distribution and the evolution rule of the blasting smoke of the full-section blasting of the underground space roadway, prevent the poisoning and suffocation accident of the blasting smoke, improve the production operation safety, reduce the blasting ventilation time and the power consumption of the underground space, save energy, reduce consumption, reduce the production cost and obtain remarkable economic benefit.
Claims (6)
1. A full-section monitoring method for toxic and harmful gases in blasting smoke of underground space is characterized by comprising the following steps:
1) the special fume monitoring device comprises a fume monitor (10) and a fume monitor installation device; the device for installing the monitor for the blast smoke comprises a chassis (1), an ellipsoid balancer (2), a traveling wheel (3), a traveling driver (4), a support frame (5), a movable rod driver (6), a movable rod (7), an infrared distance detector (11) and an image acquisition instrument (12); the chassis (1) is of a triangular or quadrilateral plane arrangement structure, the ellipsoid balancer (2) is located at the center of the chassis (1), the walking wheels (3) are installed below the chassis (1), the walking driver control (4) is installed on the outer side of the chassis (1), and the walking wheels (3) are controlled by the walking driver (4) and are remotely controlled by an operator in a wireless or wired mode; the support frame (5) is of a square frame structure, and a blasting working face (17) is vertically arranged in the center of the chassis (1); the movable rod (7) is vertically arranged on the upper and lower frames of the support frame (5) through a sliding card (8), and the movable rod (7) is connected with a movable rod driver (6); the blast smoke monitor (10) is arranged in a protection box (9) on the movable rod (7); a fixing frame (19) is vertically arranged on one side, close to the blasting working surface (17), of the chassis (1), and the infrared distance detector (11) and the image acquisition instrument (12) are installed on the fixing frame (19); the moving rod (7) is formed by reversely buckling two U-shaped components (13) and fixing the U-shaped components through fixing pins (15), and a monitor cable (14) is positioned in a closed space in the moving rod (7);
2) the monitoring implementation steps are as follows:
firstly, drilling a blast hole (18) at a designed position of a blasting working surface (17) of a rock mass (16), and completing field charging, blocking and network connection work according to blasting design charge and a detonator section;
secondly, a remote operator is positioned at a safe place at the upwind side, and a designed fume monitor (10) is arranged in a protection box (9) on a device moving rod (7); a monitor cable (14) of the flue gas monitor (10) is led out from a closed space in the movable rod (7) through penetration;
thirdly, a walking driver (4) is controlled through a controller, the special blasting smoke monitoring device is walked to a safe distance position which is more than 5m away from a blasting working surface (17), the safe distance is detected by an infrared distance detector (11), and distance and video image data are respectively returned to a remote control personnel by the infrared distance detector (11) and an image acquisition instrument (12), so that a decision basis is provided for the control personnel;
fourthly, remotely controlling a movable rod driver (6) to enable a movable rod (7) to move left and right on a support frame (5) according to different monitoring positions, and adjusting to a proper shot smoke monitoring position to meet the monitoring requirements of different positions of the same section;
detonating the detonator and the explosive in the blast hole (18) by using a blasting detonator to finish the blasting operation process; starting a ventilator to ventilate and smoke exhaust on a working surface;
sixthly, remotely controlling and starting a working button of the cigarette blasting monitor (10) to start on-site monitoring work;
seventhly, remotely and online reading blasting gun smoke concentration data and a change curve measured by a gun smoke monitor (10) by an operator on a notebook computer; after the requirement of monitoring time is met, a working button of the fume monitor (10) is closed, and the monitoring work is stopped;
and (8) arranging instruments and equipment to complete field monitoring work.
2. The full-section monitoring method for toxic and harmful gases in blasting smoke of underground space as claimed in claim 1, wherein the full-section monitoring method comprises the following steps: the field monitoring time is controlled within the range of 30-60 minutes, the national specified safe production operation condition needs to be met, and the operator blasting gun smoke poisoning accident is avoided.
3. The full-section monitoring method for toxic and harmful gases in blasting smoke of underground space as claimed in claim 1 or 2, wherein: the protection box (9) is of a mesh-shaped square structure, and the size of a mesh is 1-5 mm; explosion-proof glass and a flexible cushion layer are arranged on the outer sides of the infrared distance detector (11) and the image acquisition instrument (12).
4. The full-section monitoring method for toxic and harmful gases in blasting smoke of underground space as claimed in claim 3, wherein: the blast fume monitoring instrument is characterized in that the plurality of blast fume monitoring instruments (10) are provided, the number of the moving rods (7) is 1-3, and each blast fume monitoring instrument (10) is specially used for monitoring one of carbon monoxide, nitric oxide, nitrogen dioxide, sulfur dioxide, ammonia gas and hydrogen sulfide.
5. The full-section monitoring method for toxic and harmful gases in blasting smoke of underground space as claimed in claim 4, wherein the full-section monitoring method comprises the following steps: the walking wheels (3) are multidirectional wheels, and 3, 4 or 5 walking wheels are arranged according to field requirements.
6. The full-section monitoring method for toxic and harmful gases in blasting smoke of underground space as claimed in claim 4, wherein the full-section monitoring method comprises the following steps: the walking wheels (3) adopt a rubber wheel or crawler-type walking mode.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110288129.7A CN113030391A (en) | 2021-03-18 | 2021-03-18 | Full-section monitoring method for toxic and harmful gas in blasting smoke of underground space |
| PCT/CN2021/116004 WO2022193565A1 (en) | 2021-03-18 | 2021-09-01 | Full-section monitoring method for poisonous and harmful gas in blasting fume in underground space blasting |
| ZA2022/04724A ZA202204724B (en) | 2021-03-18 | 2022-04-28 | Full-section monitoring method for toxic and harmful gases in blast fumes during blasting in underground space |
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| CN114217027A (en) * | 2021-12-24 | 2022-03-22 | 广东爆破工程有限公司 | Method and system for monitoring air quality of blasting site on line |
| WO2022193565A1 (en) * | 2021-03-18 | 2022-09-22 | 中钢集团马鞍山矿山研究总院股份有限公司 | Full-section monitoring method for poisonous and harmful gas in blasting fume in underground space blasting |
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| ZA202204724B (en) | 2022-06-29 |
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