CN108678800B - Tunnel health preserving dust removing device and dust removing method - Google Patents

Tunnel health preserving dust removing device and dust removing method Download PDF

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CN108678800B
CN108678800B CN201810762041.2A CN201810762041A CN108678800B CN 108678800 B CN108678800 B CN 108678800B CN 201810762041 A CN201810762041 A CN 201810762041A CN 108678800 B CN108678800 B CN 108678800B
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tunnel
microcontroller
water
supply pipe
dust
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CN108678800A (en
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焦卫宁
潘建勤
薛成
李晓华
王亚琼
雍国武才
王雪霁
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CCCC Second Highway Engineering Co Ltd
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CCCC Second Highway Engineering Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E21F5/02Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
    • E21F5/04Spraying barriers
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18Special adaptations of signalling or alarm devices

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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)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

The invention provides a tunnel health preserving dust removing device, which comprises a door-shaped frame and an arched mist supply pipe, wherein the door-shaped frame and the arched mist supply pipe are arranged inside and outside, the arched mist supply pipe is connected with the door-shaped frame through a supporting rod, a plurality of evenly-spaced spray heads are arranged on the arched mist supply pipe, the arched mist supply pipe is concave in a wind barrel section opposite to the arch waist of a tunnel, the space between the spray heads of the concave section is smaller than the space between the spray heads of other sections of the arched mist supply pipe, the arched mist supply pipe is provided with two ends, one end of the arched mist supply pipe is closed, the other end of the arched mist supply pipe is connected with a fine water mist pump through a mist guide pipe, the fine water mist pump is communicated with a water supply pipe, and the water supply pipe is paved in the tunnel along the length direction of the tunnel; the portal frame is a portal structure formed by connecting a horizontal rod and two supporting legs, and the bottom end of each supporting leg is provided with a travelling mechanism and a lifting mechanism. The invention has simple structure, can carry out health maintenance on tunnel lining concrete, can reduce dust on tunnels, has low labor intensity and saves water resources.

Description

Tunnel health preserving dust removing device and dust removing method
Technical Field
The invention belongs to the technical field of tunnel health preserving and dust removing, and particularly relates to a tunnel health preserving and dust removing device and a dust removing method.
Background
The tunnel lining concrete curing is increasingly paid attention to, and common tunnel curing means comprise a high-pressure water gun and a fog gun. The high-pressure water gun is adopted for curing, a worker holds the water gun to spray water, the water is absorbed on the surface of the concrete, a large amount of water is sprayed back, water can flow on the inverted arch, water resources are wasted, inconvenience is brought to site construction, and labor intensity is high. The fog gun is adopted for health maintenance, and because the height of a vehicle body carried by the fog gun is low and the vehicle body cannot be close to the vault in a short distance, the fog gun is required to work for a long time, and thus resource expense can be caused. Along with tunnel health care demand improves, the health care trolley has appeared, but health care trolley still has some problems:
firstly, the existing health maintenance trolley generally needs to be provided with a water tank, water needs to be filled in the water tank before health maintenance, manual water supplement is frequent in the health maintenance process, and the operation is complicated;
secondly, in order to avoid wind cylinders and cables at the arch waist of a tunnel, the current health maintenance trolley is provided with spray heads only at the arch crown part, so that the arch crown part is not sprayed enough, water is generated by water spraying of the arch crown along the overflow of an arch wall, the appearance of concrete is influenced, and the current health maintenance trolley cannot be effectively applied to the tunnel construction process, so that the health maintenance effect is poor;
thirdly, at present the health preserving platform truck does not consider tunnel cross slope to its gradient influence, and shower nozzle water spray condition and design spraying direction can take place not to accord with, cause the atomising head can not radially spray towards the tunnel vault effectively, have reduced health preserving effect, and have increased the water resource.
Disclosure of Invention
The invention aims at enabling the door-shaped rack to be lifted or lowered, and ensuring that the horizontal rod of the door-shaped rack is always in a horizontal state; secondly, taking water from a water pipe in the tunnel as a water source for health maintenance and water spraying, and solving the problem of low efficiency caused by manual water supplementing at present; and thirdly, automatic health maintenance is realized, and labor intensity is reduced.
The invention provides a tunnel health preserving dust removing device, which comprises a door-shaped frame and an arched mist supply pipe, wherein the door-shaped frame and the arched mist supply pipe are arranged inside and outside, the arched mist supply pipe is connected with the door-shaped frame through a supporting rod, a plurality of uniformly-spaced spray heads are arranged on the arched mist supply pipe, the arched mist supply pipe is concave in a wind cylinder section opposite to the arch waist of a tunnel, the space between the spray heads of the concave section is smaller than the space between the spray heads of other sections of the arched mist supply pipe, the arched mist supply pipe is provided with two ends, one end is closed, the other end is connected with a water mist pump through a mist guide pipe, the water mist pump is communicated with a water supply pipe through a water guide pipe, and the water supply pipe is paved in the tunnel along the length direction of the tunnel;
the portal frame is a portal structure formed by connecting a horizontal rod and two supporting legs, and a travelling mechanism and a lifting mechanism are arranged at the bottom end of each supporting leg.
Further, the lifting mechanism sequentially comprises a lifting plate, a loop bar and a jack from top to bottom, the upper surface of the lifting plate is connected with the bottom end surface of the supporting leg, the lower surface of the lifting plate is connected with the loop bar, and the loop bar is sleeved on the jack.
Further, running gear includes the bottom plate, and the bottom plate upper surface is arranged in to the jack, and the gear box is connected to the bottom plate lower surface, is motor and motor driver in the gear box, and motor driver connects the motor, and the motor passes through the shaft connection walking wheel, and the walking wheel walks along the track of laying in the tunnel.
Further, a pipe winding device for winding the water conduit is arranged on the supporting rod.
Further, the intelligent walking device further comprises a microcontroller, wherein the input end of the microcontroller is connected with a displacement sensor for detecting displacement of the walking mechanism, a humidity sensor for detecting humidity in the tunnel, a dust concentration sensor for detecting dust concentration in the tunnel, an inclination sensor for detecting inclination angle of the horizontal rod and a speed sensor for detecting walking speed of the walking mechanism, and the displacement sensor and the speed sensor are both arranged on the walking wheel;
the output end of the microcontroller is connected with a motor driver, a first relay connected in series in a power supply loop of the pipe coiling device and a second relay connected in series in a power supply loop of the water mist pump.
Further, the input end of the microcontroller is also connected with a key input module, and the output end of the microcontroller is also connected with a liquid crystal display screen and an alarm.
Further, the water supply pipe is distributed with a plurality of sections along the length direction of the tunnel, two adjacent sections of water supply pipes are communicated through flanges, a three-way joint is arranged on each section of water supply pipe, the three-way joint is connected with the water conduit through a water outlet pipe, and a valve is arranged on each three-way joint.
Further, the concave section is in an arc shape which is bent towards the direction of the central point of the arc-shaped mist supply pipe, the air duct is opposite to the middle part of the arc shape, and the spraying heads are distributed at two end parts of the arc shape.
Further, a dust removing method of the tunnel health preserving dust removing device comprises the following steps:
the method comprises the steps that a motor and a motor driver are started, a microcontroller drives a tunnel health preserving dust removing device to walk to a tunnel lining concrete position to be subjected to health preserving through a travelling mechanism, a fine water mist pump is started, a spray head on an arch mist supply pipe sprays fine water mist radially towards a tunnel vault and a arch, the fine water mist contacts with tunnel dust particles, the fine water mist is attached to the dust particles, the fine water mist and the dust particles are fused into a whole and fall to the ground, and health preserving dust removal of the tunnel lining concrete is completed.
Further, before health preserving and dust removing, a traveling displacement value of the traveling mechanism, a humidity value in the tunnel, a dust concentration value in the tunnel, an inclination angle of the horizontal rod and a traveling speed of the traveling mechanism are preset in the microcontroller through the key input module;
starting a motor and a motor driver, driving a tunnel curing dust removing device to walk to a tunnel lining concrete position to be cured by a microcontroller through a travelling mechanism, detecting the inclination angle of a horizontal rod by an inclination angle sensor and sending the inclination angle to the microcontroller, comparing the received inclination angle with a preset inclination angle set value by the microcontroller, and operating a jack to enable a supporting leg to rise or fall when the received inclination angle is inconsistent with the preset inclination angle set value until the inclination angle detected by the inclination angle sensor is identical with the inclination angle set value; simultaneously, the humidity sensor detects the humidity of the tunnel lining concrete in real time and sends the detected humidity to the microcontroller, the microcontroller compares the received humidity with a preset humidity set value, when the humidity detected by the humidity sensor is smaller than the humidity set value, the microcontroller controls the alarm to alarm and remind, meanwhile, the microcontroller controls the second relay to be closed, the water mist pump works, the water mist generated by the water mist pump is sprayed to the tunnel lining concrete through the spraying head, meanwhile, the displacement sensor detects the walking displacement of the walking mechanism and compares the walking displacement with the displacement set value, when the two are identical, the microcontroller controls the motor to reversely rotate through the motor driver, the reciprocating movement of the walking mechanism is realized, until the humidity detected by the humidity sensor is identical with the humidity set value, the microcontroller controls the second relay to be disconnected, the water mist pump stops working, and meanwhile, the microcontroller controls the motor to stop rotating;
when the tunnel lining concrete is subjected to curing and dust removal, a worker selects an acceleration or deceleration key through a key input module according to different concrete ages, different tunnel humidity and different spray strength requirements, and a microcontroller controls a motor to accelerate or decelerate to rotate through a motor driver so as to increase or reduce the moving speed of a running mechanism until the running speed of the running mechanism detected by a speed sensor meets a preset speed set value;
when dust is required to be removed, the dust concentration sensor detects the dust concentration in the tunnel and sends the dust concentration to the microcontroller, when the dust concentration detected by the dust concentration sensor is greater than a preset dust concentration set value, the microcontroller controls the alarm to alarm and remind, meanwhile, the microcontroller controls the second relay to be closed, the water mist pump works, and the water mist generated by the water mist pump is sprayed to the tunnel lining concrete through the spray head until the dust concentration detected by the dust concentration sensor is equal to or less than the dust concentration set value, so that the health-preserving dust removal of the tunnel lining concrete is completed.
The invention has the beneficial effects that:
1. according to the invention, the travelling mechanism reciprocates to drive the tunnel curing dust collector to reciprocate, so that less manual intervention is required, the labor intensity is low, and the curing of tunnel lining concrete is realized.
2. The lifting mechanism is arranged to adjust the horizontal rod of the gantry to be horizontal, so that the outlets of the spray heads are ensured to spray towards the vault and the arch of the tunnel radially, the spray heads are prevented from deviating from the inner side surface of the tunnel due to the inclination of the gantry, the health-preserving effect is improved, and the energy consumption of water resources is increased.
3. The invention sets the water mist pump, thus provide the water mist for the spray pipe to carry on the spray health preserving, because the water mist diameter produced by the water mist pump is smaller, so the spray head sprays the water mist with smaller diameter, the back drop will not produce the phenomenon of inverted arch water flowing; in addition, the fine water mist particles are contacted with tunnel dust particles, and then are adhered to the dust particles, so that the dust particles are quickly fused into a whole, weight is increased, and the dust particles fall on the ground, thereby achieving dust fall and air purification.
4. The invention sets the water supply pipe to supply water for the whole tunnel health preserving dust removing device, effectively utilizes the space occupied by the air duct, and takes water from the longitudinal water pipe of the tunnel, thereby thoroughly solving the problem of manual water supplementing of the water tank at present.
5. The invention is provided with the speed sensor, so that the travelling mechanism can travel at different working conditions according to the set speed, and the requirements of different concrete ages and different tunnel humidity and different requirements on spray intensity are met.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a tunnel health preserving dust removing device.
Fig. 2 is a schematic view of a water supply pipe.
Fig. 3 is an electrical connection diagram of the tunnel health preserving dust removing device.
Reference numerals illustrate:
1. a door-shaped frame; 2. a support rod; 3. an arched mist supply pipe; 4. a tunnel; 5. an air duct; 6. a spray head; 7. a concave section; 8. a mist guiding pipe; 9. a fine water mist pump; 10. a water conduit; 11. a water supply pipe; 12. a lifting plate; 13. a loop bar; 14. a jack; 15. a bottom plate; 16. a gear box; 17. a wheel axle; 18. a walking wheel; 19. a track; 20. a tube rolling device; 21. a microcontroller; 22. a displacement sensor; 23. a humidity sensor; 24. a dust concentration sensor; 25. an inclination sensor; 26. a speed sensor; 27. a first relay; 28. a second relay; 29. a key input module; 30. a liquid crystal display; 31. an alarm;
101. a horizontal bar; 102. a support leg;
1101. a three-way interface; 1102. a water outlet pipe; 1103. a valve;
1601. a motor; 1602. a motor driver.
Detailed Description
Example 1:
the embodiment provides a tunnel health preserving dust collector, as shown in figure 1, which comprises a door-shaped frame 1 and an arch-shaped mist supply pipe 3 which are arranged inside and outside, wherein the arch-shaped mist supply pipe 3 is connected with the door-shaped frame 1 through a supporting rod 2, a plurality of evenly-spaced spray heads 6 are arranged on the arch-shaped mist supply pipe 3, the arch-shaped mist supply pipe 3 is concaved inwards at a section of a wind drum 5 which is opposite to the arch waist of a tunnel 4, the space between the spray heads 6 of the concave section 7 is smaller than the space between the spray heads 6 of other sections of the arch-shaped mist supply pipe 3, the arch-shaped mist supply pipe 3 is provided with two ends, one end is closed, the other end is connected with a fine water mist pump 9 through a mist guide pipe 8, the fine water mist pump 9 is communicated with a water supply pipe 11 through a water guide pipe 10, and the water supply pipe 11 is paved in the tunnel 4 along the length direction of the tunnel 4 as shown in figure 2; the portal frame 1 is a portal structure formed by connecting a horizontal rod 101 and two supporting legs 102, and a travelling mechanism and a lifting mechanism are arranged at the bottom end of each supporting leg 102.
The working principle of the tunnel health preserving dust removing device is as follows:
the water source enters the water conduit 10 through the water supply pipe 11, the water in the water conduit 10 is pumped into the mist guiding pipe 8 through the fine water mist pump 9, and then enters the arch mist supplying pipe 3 through the mist guiding pipe 8, and the outlets of the spray heads 6 on the arch mist supplying pipe 3 are all radially sprayed towards the arch crown and the arch waist of the tunnel, so that the curing and dust removal are carried out on the tunnel lining concrete.
What needs to be specifically stated is:
the fine water mist pump 9 selected in the embodiment provides fine water mist for the arched mist supply pipe 3 for spray health maintenance, and because the diameter of the fine water mist generated by the fine water mist pump is smaller, the diameter of the fine water mist sprayed by the spray head 6 is smaller, and the phenomenon of inverted arch water dripping can not be generated after the fine water mist falls back; in addition, the fine water mist particles are contacted with tunnel dust particles, and then are adhered to the dust particles, so that the dust particles are quickly fused into a whole, weight is increased, and the dust particles fall on the ground, thereby achieving dust fall and air purification.
The lifting mechanism is used for adjusting the horizontal rod 101 of the gantry 1 to be horizontal, ensures that the outlets of the spray heads 6 are all radially sprayed towards the vault and the arch of the tunnel, avoids the spray heads from deviating from the inner side surface of the tunnel due to the inclination of the gantry 1, improves the health-preserving effect, and increases the energy consumption of water-saving resources.
The water supply pipe 11 of this embodiment is laid in the tunnel 4 along the length direction of the tunnel 4, effectively utilizes the space occupied by the wind barrel, and takes water from the longitudinal water pipe of the tunnel, thereby thoroughly solving the problem of manual water replenishing of the current water tank.
Example 2:
on the basis of embodiment 1, as shown in fig. 1, the lifting mechanism sequentially comprises a lifting plate 12, a loop bar 13 and a jack 14 from top to bottom, the upper surface of the lifting plate 12 is connected with the bottom end surface of the supporting leg 102, the lower surface is connected with the loop bar 13, and the loop bar 13 is sleeved on the jack 14.
When the horizontal rod 101 of the gantry 1 is inclined, a worker can operate the jack 14 to rise or fall, so that the horizontal rod 101 of the gantry 1 is kept in a horizontal state, the outlets of the spray heads 6 are ensured to spray towards the arch crown and the arch waist of the tunnel, the spray heads are prevented from deviating from the inner side surface of the tunnel due to the inclination of the gantry 1, the health-preserving effect is improved, and the energy consumption of water-saving resources is increased.
Example 3:
on the basis of embodiment 2, as shown in fig. 1, the travelling mechanism comprises a bottom plate 15, a jack 14 is arranged on the upper surface of the bottom plate 15, the lower surface of the bottom plate 15 is connected with a gear box 16, a motor 1601 and a motor driver 1602 are arranged in the gear box 16, the motor driver 1602 is connected with the motor 1601, the motor 1601 is connected with a travelling wheel 18 through a wheel shaft 17, and the travelling wheel 18 travels along a track 19 paved in the tunnel 4.
When the tunnel health preserving and dedusting device needs to be moved, the motor driver 1602 drives the motor 1601 to rotate, and the motor 1601 rotates to drive the travelling wheel 18 to travel to a designated position along the track 19, and can also reciprocate until the health preserving and dedusting of the tunnel lining concrete is completed.
Example 4:
on the basis of embodiment 1 or embodiment 3, the support rod 2 is provided with a pipe winder 20 for winding the water conduit 10. The pipe winding device 20 can automatically wind the water conduit 10, so that manual intervention is avoided, and the labor intensity is low.
Example 5:
on the basis of embodiment 1, as shown in fig. 2, the water supply pipes 11 are distributed along the length direction of the tunnel 4 in multiple sections, two adjacent sections of water supply pipes 11 are communicated through flanges, each section of water supply pipe 11 is provided with a three-way joint 1101, the three-way joint 1101 is connected with the water conduit 10 through a water outlet pipe 1102, and each three-way joint 1101 is provided with a valve 1103.
When the tunnel health preserving dust removing device works, the water outlet pipe 1102 is required to be connected with the three-way connector 1101, and if water in the water supply pipe 11 is required to be discharged, the valve 1103 can be opened.
Example 6:
on the basis of the embodiment 1, as shown in fig. 1, the concave section 7 is in an arc shape which is bent towards the center point direction of the arc-shaped mist supply pipe 3, the wind barrel 5 is opposite to the middle part of the arc shape, and the spraying heads 6 are distributed at two end parts of the arc shape.
The embodiment effectively utilizes the space occupied by the air duct, and the spray heads are arranged at the arch crown and the arch waist of the tunnel, so that the problem of insufficient spraying at the arch waist in the prior art is solved, water is taken from the longitudinal water pipe of the tunnel, and the problem of manual water replenishing of the existing water tank is thoroughly solved.
Example 7:
a dust removal method of a tunnel health preserving dust removal device comprises the following steps:
starting a motor 1601 and a motor driver 1602, driving a tunnel health preserving and dedusting device to walk to the tunnel lining concrete to be cured by a microcontroller 21 through a travelling mechanism, starting a fine water mist pump 9, spraying a fine water mist radially towards a tunnel vault and a arch waist by a spray head 6 on an arch mist supply pipe 3, enabling the fine water mist to contact with tunnel dust particles, enabling the fine water mist to be attached to the dust particles, and enabling the fine water mist to fall to the ground integrally to finish the health preserving and dedusting of the tunnel lining concrete.
Specifically, lay two parallel tracks 19 in tunnel 4 earlier, then install tunnel health preserving dust collector on track 19, tunnel health preserving dust collector walks on track 19, and reciprocating motion in-process sprays, and the spraying has health preserving and dust fall two effects, and the direct effect of spraying is the health preserving, because of the certain dust fall function of water smoke, compromise the dust fall. When the health maintenance is not needed, only the spraying is started, at the moment, the spraying has the dust fall effect, and the tunnel health maintenance dust removal device does not need to walk.
Example 8:
as shown in fig. 3, the tunnel health preserving dust removing device further comprises a microcontroller 21, wherein the input end of the microcontroller 21 is connected with a displacement sensor 22 for detecting displacement of the travelling mechanism, a humidity sensor 23 for detecting humidity in the tunnel 4, a dust concentration sensor 24 for detecting dust concentration in the tunnel 4, an inclination sensor 25 for detecting inclination angle of the horizontal rod 101 and a speed sensor 26 for detecting travelling speed of the travelling mechanism, and the displacement sensor 22 and the speed sensor 26 are both arranged on the travelling wheel 18; the output end of the microcontroller 21 is connected with a motor driver 1602, a first relay 27 connected in series in the power supply loop of the pipe coiling device 20 and a second relay 28 connected in series in the power supply loop of the water mist pump 9. The input end of the microcontroller 21 is also connected with a key input module 29, and the output end of the microcontroller 21 is also connected with a liquid crystal display screen 30 and an alarm 31.
Specifically, before the health preserving and dedusting, the running displacement value of the running mechanism, the humidity value in the tunnel 4, the dust concentration value in the tunnel 4, the inclination angle of the horizontal rod 101 and the running speed of the running mechanism are set in the microcontroller 21 through the key input module 29 in advance;
starting a motor 1601 and a motor driver 1602, driving a tunnel curing dust removing device by a microcontroller 21 to walk to a tunnel lining concrete to be cured through a traveling mechanism, detecting the inclination angle of a horizontal rod 101 by an inclination sensor 25 and sending the inclination angle to the microcontroller 21, comparing the received inclination angle with a preset inclination angle set value by the microcontroller 21, and operating a jack 14 to enable a supporting leg 102 to rise or fall until the inclination angle detected by the inclination sensor 25 is the same as the inclination angle set value when the inclination angle is inconsistent with the preset inclination angle set value; simultaneously, the humidity sensor 23 detects the humidity of the tunnel lining concrete in real time and sends the detected humidity to the microcontroller 21, the microcontroller 21 compares the received humidity with a preset humidity set value, when the humidity detected by the humidity sensor 23 is smaller than the humidity set value, the microcontroller 21 controls the alarm 31 to alarm and remind, meanwhile, the microcontroller 21 controls the second relay 28 to be closed, the water mist pump 9 works, the water mist generated by the water mist pump 9 is sprayed to the tunnel lining concrete through the spray head 6, meanwhile, the displacement sensor 22 detects the walking displacement of the walking mechanism and compares the walking displacement with the displacement set value, when the two are identical, the microcontroller 21 controls the motor 1601 to reversely rotate through the motor driver 1602, the reciprocating movement of the walking mechanism is realized, until the humidity detected by the humidity sensor 23 is identical with the humidity set value, the microcontroller 21 controls the second relay 28 to be disconnected, the water mist pump 9 stops working, and meanwhile, the microcontroller 21 controls the motor 1601 to stop rotating;
when the tunnel lining concrete is subjected to curing and dedusting, a worker selects an acceleration or deceleration key through a key input module 29 according to different concrete ages, different tunnel humidity and different spray intensity requirements, and the microcontroller 21 controls the motor 1601 to accelerate or decelerate and rotate through a motor driver 1602 so as to increase or reduce the moving speed of the running mechanism until the running speed of the running mechanism detected by the speed sensor 26 meets a preset speed set value;
when dust removal is needed, the dust concentration sensor 24 detects the dust concentration in the tunnel and sends the dust concentration to the microcontroller 21, when the dust concentration detected by the dust concentration sensor 24 is larger than a preset dust concentration set value, the microcontroller 21 controls the alarm 31 to alarm and remind, meanwhile, the microcontroller 21 controls the second relay 28 to be closed, the water mist pump 9 works, and the water mist generated by the water mist pump 9 is sprayed to the tunnel lining concrete through the spraying head 6 until the dust concentration detected by the dust concentration sensor 24 is equal to or smaller than the dust concentration set value, so that the health-preserving dust removal of the tunnel lining concrete is completed.
It is pointed out that health preserving is primary function, because the spraying has the dust fall function, compromise the dust fall during health preserving, because the health preserving is the interval and goes on, humidity has met the requirement, and tunnel health preserving dust collector just stops operating, if the dust exceeds standard, only need when removing dust, tunnel health preserving dust collector need not walk, only need start the spraying function can.
The displacement sensor 38 is a KL712 5K0/M-SE displacement sensor; the humidity sensor 39 is a HIH-3605 humidity sensor; the tilt sensor 41 is an AT202-SC tilt sensor; the dust concentration sensor 40 is a K33-GCG1000 dust concentration sensor; the speed sensor 42 is an AHC7-SD speed sensor; the left motor driver 43 and the right motor driver 45 are 57BL55S02-212TF9 direct current motor drivers, and the left motor 44 and the right motor 46 are direct current brushless motors 57BL95S15-230TF9B; the water mist pump 25 is commercially available, and specifically, it is composed of a water pump and a motor, the motor provides power for the water pump, and preferably, the water pump is AR/RK21.10C in this embodiment, and the motor is AR/RV1131A. The liquid crystal display 30 is used for displaying the walking displacement, the humidity dust concentration, the inclination angle and the walking speed in real time, so that the walking displacement, the humidity dust concentration, the inclination angle and the walking speed are convenient to view. The microcontroller selects STC89C52RC microcontroller produced by STC company, which is a low-power consumption high-performance CMOS 8-bit microcontroller, has 8K byte system programmable Flash memory, STC89C52 uses classical MCS-51 kernel, has smart 8-bit CPU and system programmable Flash on a single chip, so that STC89C52 provides high flexible and super effective solution for a plurality of embedded control application systems. The key input module 29 selects the WaveShare 5 IO matrix key, and the receiving of the module has high uniformity and low cost.
In conclusion, the invention has the advantages of simple structure, reasonable design, convenient operation, capability of carrying out health maintenance on tunnel lining concrete, capability of carrying out dust fall on tunnels, good health maintenance and dust removal effects, low labor intensity, water resource conservation, convenience for construction in the tunnels and strong practicability.
The foregoing examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and all designs that are the same or similar to the present invention are within the scope of the present invention. The components and structures not specifically described in this embodiment are well known in the art and are not described in detail herein.

Claims (9)

1. The utility model provides a tunnel health preserving dust collector, it includes door shape frame (1) and arch that inside and outside laid supply fog pipe (3), and door shape frame (1) is connected through bracing piece (2) to arch supply fog pipe (3), install a plurality of evenly spaced atomising head (6), its characterized in that on the arch supplies fog pipe (3): the device comprises a tunnel (4), a water supply pipe (4) and a microcontroller (21), wherein the arch-shaped mist supply pipe (3) is concave in a section of a wind drum (5) opposite to the arch waist of the tunnel (4), the space between spray heads (6) of the concave section (7) is smaller than the space between spray heads (6) of other sections of the arch-shaped mist supply pipe (3), the arch-shaped mist supply pipe (3) is provided with two ends, one end is closed, the other end is connected with a water mist pump (9) through a mist guiding pipe (8), the water mist pump (9) is communicated with the water supply pipe (11) through a water guide pipe (10), and the water supply pipe (11) is paved in the tunnel (4) along the length direction of the tunnel (4); the portal frame (1) is a portal structure formed by connecting a horizontal rod (101) and two supporting legs (102), and a travelling mechanism and a lifting mechanism are arranged at the bottom end of each supporting leg (102); a pipe coiling device (20) for coiling the water diversion pipe (10) is arranged on the supporting rod (2); the input end of the microcontroller (21) is connected with a displacement sensor (22) for detecting displacement of the travelling mechanism, a humidity sensor (23) for detecting humidity in the tunnel (4), a dust concentration sensor (24) for detecting dust concentration in the tunnel (4), an inclination sensor (25) for detecting inclination angle of the horizontal rod (101) and a speed sensor (26) for detecting travelling speed of the travelling mechanism.
2. The tunnel health preserving dust removing apparatus of claim 1, wherein: the lifting mechanism sequentially comprises a lifting plate (12), a loop bar (13) and a jack (14) from top to bottom, the upper surface of the lifting plate (12) is connected with the bottom end surface of the supporting leg (102), the lower surface of the lifting plate is connected with the loop bar (13), and the loop bar (13) is sleeved on the jack (14).
3. The tunnel health preserving dust removing apparatus as claimed in claim 2, wherein: the walking mechanism comprises a bottom plate (15), a jack (14) is arranged on the upper surface of the bottom plate (15), the lower surface of the bottom plate (15) is connected with a gear box (16), a motor (1601) and a motor driver (1602) are arranged in the gear box (16), the motor driver (1602) is connected with the motor (1601), the motor (1601) is connected with a walking wheel (18) through a wheel shaft (17), and the walking wheel (18) walks along a track (19) paved in a tunnel (4).
4. The tunnel health preserving dust removing apparatus of claim 1, wherein: the displacement sensor (22) and the speed sensor (26) are both mounted on the running wheel (18); the output end of the microcontroller (21) is connected with a motor driver (1602), a first relay (27) connected in series in a power supply loop of the pipe coiling device (20) and a second relay (28) connected in series in a power supply loop of the water mist pump (9).
5. The tunnel health preserving dust removing apparatus of claim 4, wherein: the input end of the microcontroller (21) is also connected with a key input module (29), and the output end of the microcontroller (21) is also connected with a liquid crystal display screen (30) and an alarm (31).
6. The tunnel health preserving dust removing apparatus of claim 1, wherein: the water supply pipe (11) is distributed along the length direction of the tunnel (4) in multiple sections, two adjacent sections of water supply pipes (11) are communicated through flanges, a three-way connector (1101) is arranged on each section of water supply pipe (11), the three-way connector (1101) is connected with the water conduit (10) through a water outlet pipe (1102), and a valve (1103) is arranged on each three-way connector (1101).
7. The tunnel health preserving dust removing apparatus of claim 1, wherein: the concave section (7) is in an arc shape which is bent towards the direction of the central point of the arc-shaped mist supply pipe (3), the air duct (5) is opposite to the middle part of the arc shape, and the spraying heads (6) are distributed at two end parts of the arc shape.
8. A dust removing method of the tunnel health preserving dust removing device as claimed in any one of claims 1 to 7, characterized by comprising the steps of: starting motor (1601) and motor driver (1602), microcontroller (21) walk to the tunnel lining concrete department of waiting the health preserving through running gear drive tunnel health preserving dust collector, start thin water smoke pump (9), spray header (6) on arch confession fog pipe (3) radially jet out thin water smoke towards tunnel vault and arch, thin water smoke and tunnel dust particle contact, thin water smoke adheres to on the dust particle, both melt together and drop ground, accomplish the health preserving dust removal to tunnel lining concrete.
9. The dust removing method of the tunnel health preserving dust removing device as claimed in claim 8, wherein: before health preserving and dust removing, a traveling displacement value of a traveling mechanism, a humidity value in a tunnel (4), a dust concentration value in the tunnel (4), an inclination angle of a horizontal rod (101) and a traveling speed of the traveling mechanism are preset in a microcontroller (21) through a key input module (29);
starting a motor (1601) and a motor driver (1602), driving a tunnel curing dust removing device to walk to a tunnel lining concrete to be cured by a microcontroller (21) through a traveling mechanism, detecting the inclination angle of a horizontal rod (101) by an inclination angle sensor (25) and sending the inclination angle to the microcontroller (21), comparing the received inclination angle with a preset inclination angle set value by the microcontroller (21), and operating a jack (14) to enable a supporting leg (102) to be lifted or lowered until the inclination angle detected by the inclination angle sensor (25) is the same as the inclination angle set value when the inclination angle is inconsistent with the preset inclination angle set value; simultaneously, the humidity sensor (23) detects the humidity of tunnel lining concrete in real time, the detected humidity is sent to the microcontroller (21), the microcontroller (21) compares the received humidity with a preset humidity set value, when the humidity detected by the humidity sensor (23) is smaller than the humidity set value, the microcontroller (21) controls the alarm device (31) to alarm and remind, meanwhile, the microcontroller (21) controls the second relay (28) to be closed, the water mist pump (9) works, the water mist generated by the water mist pump (9) is sprayed to the tunnel lining concrete through the spray head (6), meanwhile, the displacement sensor (22) detects the walking displacement of the walking mechanism and compares the walking displacement with the displacement set value, when the two humidity detected by the humidity sensor (23) is identical, the microcontroller (21) controls the motor (1601) to reversely rotate, the reciprocating movement of the walking mechanism is realized until the humidity detected by the humidity sensor (23) is identical with the humidity set value, the microcontroller (21) controls the second relay (28) to be disconnected, the water mist pump (9) stops working, and meanwhile, the microcontroller (21) controls the motor (1601) to stop rotating;
when the tunnel lining concrete is subjected to curing and dust removal, according to different concrete ages, different tunnel humidity and different spray intensity requirements, a worker selects an acceleration or deceleration key through a key input module (29), and a microcontroller (21) controls a motor (1601) to accelerate or decelerate and rotate through a motor driver (1602) so as to increase or reduce the moving speed of a running mechanism until the running speed of the running mechanism detected by a speed sensor (26) meets a preset speed set value;
when dust is required to be removed, the dust concentration sensor (24) detects the dust concentration in the tunnel and sends the dust concentration to the microcontroller (21), when the dust concentration detected by the dust concentration sensor (24) is larger than a preset dust concentration set value, the microcontroller (21) controls the alarm (31) to alarm and remind, meanwhile, the microcontroller (21) controls the second relay (28) to be closed, the water mist pump (9) works, and the water mist generated by the water mist pump (9) is sprayed to the tunnel lining concrete through the spray head (6) until the dust concentration detected by the dust concentration sensor (24) is equal to or smaller than the dust concentration set value, so that the health-preserving dust removal of the tunnel lining concrete is completed.
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