CN109184776B - Tunnel full-automatic curtain dust removal device and method based on construction trolley - Google Patents
Tunnel full-automatic curtain dust removal device and method based on construction trolley Download PDFInfo
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- CN109184776B CN109184776B CN201811004689.XA CN201811004689A CN109184776B CN 109184776 B CN109184776 B CN 109184776B CN 201811004689 A CN201811004689 A CN 201811004689A CN 109184776 B CN109184776 B CN 109184776B
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- 239000000428 dust Substances 0.000 title claims abstract description 103
- 238000010276 construction Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 82
- 230000006698 induction Effects 0.000 claims abstract description 34
- 239000011435 rock Substances 0.000 claims abstract description 16
- 238000004880 explosion Methods 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 239000002360 explosive Substances 0.000 claims abstract description 7
- 238000002955 isolation Methods 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims abstract description 4
- 239000013013 elastic material Substances 0.000 claims abstract description 3
- 239000000779 smoke Substances 0.000 claims description 38
- 238000005422 blasting Methods 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 6
- 239000003086 colorant Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 20
- 230000008569 process Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007600 charging Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
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- 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
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
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- 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
-
- 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
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Prevention Of Fouling (AREA)
Abstract
The invention discloses a full-automatic tunnel curtain dust removal device and method based on a construction trolley, which comprises a hydraulic induction stay bar, a fixed fog gun machine and an active carbon dust-proof curtain; the hydraulic induction stay bar is controlled by the control circuit and is connected with the activated carbon dust-proof curtain, and the curtain is supported under the action of the stay bar until the curtain is propped against the rock wall to form a closed isolation area between the hydraulic induction stay bar and the tunnel face; the top of the hydraulic induction stay bar is provided with a pressure-sensitive sensor which can detect the pressure between the stay bar and the rock wall and then react to the control circuit, so that each connecting sleeve hole of the curtain is firmly propped against the rock wall, and the curtain is firmly fixed; the edge of the activated carbon dust-proof curtain is made of elastic material, and is provided with a connecting sleeve hole which can be sleeved with the stay bar; the middle part of the activated carbon dust-proof curtain is formed by splicing and assembling activated carbon blocks, and the surface of the activated carbon dust-proof curtain is covered with a protective net layer, so that the curtain is prevented from being damaged by gravels generated after explosive explosion.
Description
Technical Field
The invention relates to the technical field of dust removal of civil engineering tunnel construction, in particular to a dust removal technology applied to tunnel drilling and blasting construction, and specifically relates to a full-automatic curtain dust removal device and method for a tunnel based on a construction trolley.
Background
China becomes a country with the most number of seats and the most total mileage of tunnels, a lot of tunnels are still built and not built, and the construction of high-speed rails, high-speed roads, common roads and the like is not separated from tunnel construction. The drilling and blasting method is a main application technology for building tunnels and is a construction mode for excavating rocks by methods of drilling, charging and blasting. In the drilling and blasting construction process, a large amount of free silica dust is generated due to continuous blasting on rocks, and the dust is greatly damaged to the health of constructors even caused by long-term suction, and even pneumoconiosis is caused. Therefore, in order to ensure the health of workers in the tunnel and the requirement of visibility, ventilation and dust removal in the tunnel are required in the construction process of the medium-length tunnel.
At present, for the treatment of air dust, the control measures can be roughly classified into reduction, discharge, removal and inhibition 5 according to the control mechanism. (1) Dust reduction: namely spraying water, wet drilling, wet spraying and water seal blasting on the tunnel face; (2) and (4) dust fall: spraying or sprinkling water at a loading point and a transferring point of the transportation equipment, purifying air by a spray water curtain, spraying foam for dust fall, and adding a wetting agent into water; (3) dust removal: ventilating by adopting a fan, selecting the optimal wind speed and arranging a dust-proof curtain, a mechanical sealing cover, a return airway air door and the like; (4) dust removal: comprises a filter type dust remover, a dry type dust catcher, a wet type dust remover and the like; (5) dust prevention: namely wearing a dust cap, a dust mask and the like. In actual work, the prevention and control means of tunnel construction dust mainly comprises tunnel ventilation and dust discharge, occasionally, fog gun vehicles can remove dust, but the cost is high.
The traditional construction technology mainly utilizes a fan to supply oxygen and blow away harmful gas to air outside a conveying tunnel in the tunnel, so that the supply demand of constructors is ensured to a certain extent, but dust is not treated more effectively, and the dust pollution of the tunnel environment is large; occasionally, a fog gun vehicle is adopted for tunnel construction to spray water for dust reduction, but the time, labor and resource costs are high, the efficiency is low, and the application is not wide. Therefore, it is especially important to seek a more effective tunnel dust fall mode to improve construction environment and improve construction safety.
Disclosure of Invention
The invention provides a full-automatic tunnel curtain dust removal device and method based on a construction trolley, which start from the source of dust and adopt the idea of comprehensive dust removal by arranging a dust-isolating curtain combined spray water curtain. The invention aims to overcome the defects of the prior art and provide a full-automatic curtain dust removal device and method for a tunnel based on a construction trolley.
The invention adopts the following technical scheme:
a full-automatic tunnel curtain dust removal device based on a construction trolley comprises the construction trolley, a fog gun dust removal mechanism and a control device,
the construction trolley is provided with a plurality of hydraulic induction rods, and the hydraulic induction rods are connected with the dust-proof curtain and used for driving the dust-proof curtain to be propped up to a rock wall to form a dust removal isolation area or withdrawing the dust-proof curtain after dust removal is finished;
the fog gun dust removal mechanism is arranged on the construction trolley and used for removing dust in the isolation area;
the control device controls the fog gun dust removal mechanism and the hydraulic induction rod.
Further, hydraulic pressure response vaulting pole top be provided with pressure sensitive sensor, pressure sensitive sensor can detect the pressure between hydraulic pressure response pole and the cliff and pass to controlling means with the pressure that detects, controlling means control hydraulic pressure response vaulting pole all firmly support the curtain on the cliff, firmly fixed curtain.
Furthermore, the fog gun dust removal mechanism comprises two fog gun machines, nozzles of the two fog gun machines are symmetrically fixed on the construction trolley, smoke detectors are additionally arranged at proper positions of the nozzles of the fog gun machines, the smoke detectors detect smoke after explosive explosion, and the fog gun machines are controlled to automatically remove dust through a control device.
Furthermore, the front part of the fog gun machine nozzle is provided with a protective net which can prevent broken stones generated by explosion from damaging the nozzle, and the rear part of the fog gun machine nozzle is provided with a water inlet pipe which is connected with the fog gun machine bracket through a universal rotating shaft and can rotate left and right and up and down under the control of the control device.
Furthermore, the hydraulic pressure response vaulting pole is fixed in construction trolley and keeps away from face one side, fixed fog gun machine is fixed in construction trolley and is close to face one side, like this under the controlling means effect the vaulting pole prop up the curtain with form closed area between the face, the fog gun machine can be in this closed area automatic dust removal work that carries on.
Furthermore, the edge of the activated carbon dust-proof curtain is made of elastic materials, and a connecting sleeve hole is arranged on the activated carbon dust-proof curtain and is used for being sleeved with the support rod; the middle part of the activated carbon dust-proof curtain is formed by splicing and assembling activated carbon splicing blocks, and one surface facing to a tunnel face is covered with a protective net layer, so that the curtain is prevented from being damaged by broken stones generated after explosive explosion.
Furthermore, the size of the activated carbon dust-proof curtain is larger than the size of the section of the tunnel, and a weight is arranged at the lower part of the activated carbon dust-proof curtain, so that the curtain can be hung in the tunnel, and the smoke dust is prevented from escaping from the lower part of the curtain.
Furthermore, the active carbon assembling blocks adopt a unified mode, and when a certain block is damaged, the active carbon assembling blocks are convenient to disassemble and replace, so that the active carbon assembling blocks do not need to be integrally replaced, and the cost is reduced.
Furthermore, the upper part, two sides and the bottom of the activated carbon dust-proof curtain are set to be different colors, so that the curtain can be conveniently installed on the stay bar manually.
Furthermore, the fog gun dust removal mechanism can rotate left and right according to a set frequency under the control action of the control device, when the smoke detector detects that the smoke content in a period from left to right or from right to left is below a safety range, the fog gun nozzle can be controlled by the control device to rotate downwards by a fixed angle, and thus, after the nozzle reaches the lowest angle, the smoke detector detects that the smoke content in the period from left to right or from right to left is below the safety range, the fog gun dust removal mechanism stops working, and dust removal work is completed.
The application method of the invention is as follows:
A. hydraulic induction support rods are distributed on two sides of each layer of the trolley and the top of the trolley according to the shape of the trolley, and a fog gun machine is installed at a proper position;
B. connecting the activated carbon dust-proof curtain with the hydraulic induction stay bar through the connecting sleeve hole;
C. starting the control device to control the movement of the supporting rod to enable the curtain to be abutted against the rock wall to form a closed area between the curtain and the tunnel face;
D. blasting the tunnel face after people leave a safe area, controlling the fog gun machine to automatically work when the smoke detector detects smoke at the moment, and stopping working until the smoke is below the safe range;
E. starting the control device, retracting the stay bar and taking down the curtain;
F. and (3) only mechanically repeating the steps B-E when blasting and dedusting the subsequent tunnel face.
The invention has the beneficial effects that:
(1) the invention relates to a full-automatic device for removing dust in real time after blasting the tunnel face of an underground cavern, which forms a closed area between the dust-proof curtain of active carbon and the tunnel face, thereby effectively avoiding the diffusion of dust after blasting the tunnel face, and considering the ventilation of the curtain, so that the curtain is impacted by smaller air wave and the service life is prolonged.
(2) The dust removal device is comprehensively used after reasonable combination by means of common fog gun equipment and cleanliness detection equipment, the dust removal process is fully automatically carried out after installation is completed, consumption of a large amount of manpower is saved, and due to the fact that dust removal and the detection process are automatically carried out, constructors are not needed to participate, and the dust removal device is safer.
(3) The dust separation, dust removal and detection are integrally carried out, automatic dust removal is started within a few seconds after blasting, the working efficiency is greatly improved, the cost is saved, and the popularization and the operation are convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Figure 1 is a schematic view of a construction trolley utilized by the apparatus of the present invention in a tunnel section.
FIG. 2 is a schematic diagram of the device of the invention after a hydraulic induction stay bar and a fixed fog gun machine are additionally arranged on a construction trolley.
FIG. 3 is a schematic view of the activated carbon dust barrier of the apparatus of the present invention.
FIG. 4 is a schematic view of the activated carbon dust-proof curtain of the present invention blocking a section of a tunnel.
FIG. 5 is a schematic view of the enclosed area formed between the activated carbon dust barrier curtain of the present invention and the tunnel face.
Fig. 6 is a schematic view of the fixed fog gun of the present invention.
Wherein: the tunnel comprises a tunnel rock wall 1, a construction trolley 2, a hydraulic induction support rod 3, a fixed fog gun machine 4, an elastic edge sealing 5, an active carbon assembling block 6, a connecting sleeve hole 7, an active carbon dust-proof curtain 8, a tunnel face 9, a smoke detector 10, a protective mesh enclosure 11, a fog gun nozzle 12, a universal rotating shaft 13, a water inlet pipe 14 and a fixed support 15.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As introduced by the background art, the defects of large dust diffusion, slow dust removal and laggard dust removal mode existing after the face blasting in the prior art are overcome, and in order to solve the technical problems, the application provides a full-automatic device for removing dust immediately after the face blasting of an underground cavern, in particular to a tunnel full-automatic curtain dust removal device and method based on a construction trolley.
As shown in fig. 1 and 2, the fully automatic tunnel curtain dust removing device based on the construction trolley 2 comprises a hydraulic induction stay bar 3, a fixed fog gun machine 4, an active carbon dust-proof curtain 8 and the like.
Eight hydraulic induction support rods 3 are symmetrically fixed on the construction trolley 2 and are controlled to extend or retract by a control device; the hydraulic induction stay bar 3 is connected with an active carbon dust-proof curtain 8, and the active carbon dust-proof curtain 8 is supported under the action of the hydraulic induction stay bar 3 until the active carbon dust-proof curtain is propped against the tunnel rock wall 1 to form a closed isolation area between the active carbon dust-proof curtain and the tunnel face 9; after the dust removal is finished, the hydraulic induction stay bar 3 retracts, and the active carbon dust-proof curtain 8 descends; in the whole process, the fixed fog gun machine 4 removes dust in an isolated environment.
The top of the hydraulic pressure induction stay bar 3 is provided with a pressure sensitive sensor which can detect the pressure between the hydraulic pressure induction stay bar 3 and the tunnel rock wall 1, then the pressure sensitive sensor feeds back to the control device, and then the control device controls the pressure of the hydraulic pressure induction stay bar, thereby firmly supporting each connecting sleeve hole 7 of the activated carbon dust-proof curtain 8 on the tunnel rock wall 1 and firmly fixing the curtain.
The edge of the activated carbon dust-proof curtain 8 is composed of an elastic sealed edge 5, and a connecting sleeve hole 7 is arranged on the activated carbon dust-proof curtain and can be sleeved with the hydraulic induction stay bar 3. The middle part of the active carbon dust-proof curtain 8 is formed by splicing and assembling active carbon splicing blocks 6, and a protective net layer is additionally arranged on one surface facing to a tunnel face, so that the curtain is prevented from being damaged by gravels generated after explosive explosion.
The size of the activated carbon dust-proof curtain is larger than the size of the section of the tunnel, and the weight is arranged at the lower part of the activated carbon dust-proof curtain, so that the curtain can be hung in the tunnel, and the smoke dust is prevented from escaping from the lower part of the curtain. The active carbon assembling blocks adopt a unified mode, and when a certain block is damaged, the active carbon assembling blocks are convenient to disassemble and replace, so that the active carbon assembling blocks do not need to be integrally replaced, and the cost is reduced.
The activated carbon dust-proof curtain is set in various colors, such as: the upper part is set to red, both sides are set to blue, and the bottom is set to black, so that the curtain can be conveniently installed on the hydraulic induction support rod 3 manually.
Fixed fog gun machine 4 is totally two, symmetrically is fixed in on the construction trolley 2, and fixed fog gun machine 4 includes fog gun machine shower nozzle 12, and smoke and dust detector 10 is installed additional to the suitable position of fog gun machine shower nozzle 12, and the smoke and dust detector detects the smoke and dust after the explosive explosion, removes dust through the automatic of controller control fog gun machine.
The front part of the fog gun machine nozzle 12 is provided with a protective screen 11 which can prevent broken stones generated by explosion from damaging the nozzle, and the rear part of the fog gun machine nozzle is provided with a water inlet pipe 14 which is connected with a fog gun machine bracket 15 through a universal rotating shaft 13 and can rotate left and right and up and down under the control of a control device.
The fixed fog gun machine can rotate left and right according to set frequency under the circuit control effect, after the smoke detector detects that the smoke content is below the safety range from left to right or in a period from right to left, the fog gun nozzle can be controlled to rotate downwards by a fixed angle through the control circuit, so that after the nozzle reaches the lowest angle, the smoke detector detects that the smoke content is below the safety range from left to right or in a period from right to left, the fixed fog gun machine stops working, and dust removal work is completed.
The application method of the invention is as follows:
A. hydraulic induction support rods 3 are distributed on two sides and the top of each layer of the construction trolley 2 according to the shape of the construction trolley 2, and a fixed fog gun machine 4 is installed at a proper position;
B. the active carbon dust-proof curtain 8 is connected with the hydraulic induction stay bar 3 through the connecting sleeve hole 7;
C. starting a control device to control the movement of the hydraulic induction stay bar 3 to enable the activated carbon dust-proof curtain 8 to be pressed against the tunnel rock wall 1 to form a closed area between the closed area and the tunnel face 9;
D. when people leave a safe area, blasting the tunnel face 9, controlling the fixed fog gun machine 4 to automatically work until the smoke is below the safe range by the smoke detector 10 when the smoke detector detects the smoke;
E. starting the control device, withdrawing the hydraulic induction stay bar 3, and taking down the activated carbon dust-proof curtain 8;
F. the subsequent blasting dust removal of the tunnel face 9 only needs to mechanically repeat the B-E procedures
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
(1) the invention relates to a full-automatic device for removing dust immediately after blasting the tunnel face of an underground cavern, which forms a closed area between the dust-proof curtain and the tunnel face through an active carbon dust-proof curtain, thereby effectively avoiding the diffusion of dust after blasting the tunnel face, and considering the ventilation of the curtain, so that the curtain is impacted by smaller air waves, and the service life is prolonged.
(2) The dust removal device is comprehensively used after reasonable combination by means of common construction trolleys, fog gun equipment, smoke dust detection equipment and hydraulic equipment, the dust removal process is fully automatically carried out after installation is finished, consumption of a large amount of manpower is saved, and due to the fact that dust removal and the smoke dust detection process are automatically carried out, constructors are not needed to participate, and the dust removal device is safer.
(3) The dust separation, dust removal and detection are integrally carried out, automatic dust removal can be started after blasting, the working efficiency is greatly improved, the cost is saved, and the popularization and the field operation are convenient.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (9)
1. A full-automatic tunnel curtain dust removal device based on a construction trolley is characterized by comprising the construction trolley, a fog gun dust removal mechanism and a control device,
the construction trolley is provided with a plurality of hydraulic induction support rods, and the hydraulic induction support rods are connected with the dust-proof curtain and used for driving the dust-proof curtain to be supported to a rock wall to form a dust removal isolation area or withdrawing the dust-proof curtain after dust removal is finished;
the fog gun dust removal mechanism is arranged on the construction trolley and used for removing dust in the isolation area;
the control device controls the fog gun dust removal mechanism and the hydraulic induction support rod;
the fog gun dust removal mechanism can rotate left and right according to set frequency under the control action of the control device, when the smoke detector detects that the smoke content is below a safety range in a cycle from left to right or from right to left, the fog gun nozzle can be controlled by the control device to rotate downwards by a fixed angle, and therefore, when the nozzle reaches the lowest angle, the smoke detector detects that the smoke content is below the safety range in a cycle from left to right or from right to left, the fog gun dust removal mechanism stops working, and dust removal work is completed.
2. The fully automatic curtain dust removing device for the tunnel based on the construction trolley as claimed in claim 1, wherein a pressure sensitive sensor is provided on a top of the hydraulic sensing support rod, the pressure sensitive sensor can detect a pressure between the hydraulic sensing support rod and the rock wall and transmit the detected pressure to the control device, and the control device controls the hydraulic sensing support rod to firmly support the curtain against the rock wall, thereby firmly fixing the curtain.
3. The full-automatic tunnel curtain dust removal device based on the construction trolley as claimed in claim 1, wherein the fog gun dust removal mechanism comprises two fog gun machines, nozzles of the two fog gun machines are symmetrically fixed on the construction trolley, a smoke detector is additionally mounted at a proper position of the nozzle of the fog gun machine, the smoke detector detects smoke after explosive explosion, and the fog gun machines are controlled to automatically remove dust through a control device.
4. The full-automatic curtain dust removal device for the tunnel based on the construction trolley as claimed in claim 3, wherein a protective net is arranged at the front part of the spray head of the fog gun machine to prevent broken stones generated by explosion from damaging the spray head; the rear part is provided with a water inlet pipe which is connected with a fog gun machine bracket through a universal rotating shaft, and a spray head of the fog gun machine rotates left and right and up and down under the control of a control device.
5. The full-automatic curtain dust removal device for the tunnel based on the construction trolley is characterized in that the hydraulic induction supporting rod is fixed on the side, far away from the tunnel face, of the construction trolley, and the fog gun dust removal mechanism is fixed on the side, close to the tunnel face, of the construction trolley.
6. The fully automatic curtain dust removal device for the tunnel based on the construction trolley as claimed in claim 1, wherein the dust-proof curtain is an activated carbon dust-proof curtain, the edge of the activated carbon dust-proof curtain is made of elastic material, and a connecting sleeve hole is arranged on the curtain and is used for being sleeved with the hydraulic induction stay bar; the middle part of the activated carbon dust-proof curtain is formed by splicing and assembling activated carbon splicing blocks, and one surface facing to a tunnel face is covered with a protective net layer, so that the curtain is prevented from being damaged by broken stones generated after explosive explosion.
7. The fully automatic curtain dust removing device for the tunnel based on the construction trolley as claimed in claim 6, wherein the activated carbon dust-proof curtain has a size larger than the sectional size of the tunnel, and a weight is provided at the lower part thereof to hang the curtain in the tunnel, thereby preventing the smoke from escaping from the lower part of the curtain.
8. The fully automatic curtain dust removing device for the tunnel based on the construction trolley as claimed in claim 6, wherein the upper part, both sides and bottom of the activated carbon dust-proof curtain are set to different colors.
9. The use method of the full-automatic curtain dust removal device for the tunnel based on the construction trolley as claimed in any one of claims 1 to 8,
A. hydraulic induction support rods are distributed on two sides of each layer of the trolley and the top of the trolley according to the shape of the trolley, and a fog gun machine is installed at a proper position;
B. connecting the activated carbon dust-proof curtain with the hydraulic induction stay bar through the connecting sleeve hole;
C. starting a control device to control the movement of the hydraulic induction support rod to enable the curtain to be abutted against the rock wall to form a closed area between the curtain and the tunnel face;
D. blasting the tunnel face after people leave a safe area, controlling the fog gun machine to automatically work until the smoke concentration is below the safe range by the smoke detector when the smoke detector detects smoke;
E. starting the control device, withdrawing the hydraulic induction stay bar and taking down the curtain;
F. and (3) only mechanically repeating the steps B-E when blasting and dedusting the subsequent tunnel face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811004689.XA CN109184776B (en) | 2018-08-30 | 2018-08-30 | Tunnel full-automatic curtain dust removal device and method based on construction trolley |
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| CN201811004689.XA CN109184776B (en) | 2018-08-30 | 2018-08-30 | Tunnel full-automatic curtain dust removal device and method based on construction trolley |
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| CN109184776A CN109184776A (en) | 2019-01-11 |
| CN109184776B true CN109184776B (en) | 2019-12-24 |
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| CN116146271A (en) * | 2023-03-15 | 2023-05-23 | 中铁一局集团(广州)建设工程有限公司 | Dust settling device and construction dust settling method for cantilever heading machine of narrow tunnel |
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