A tunnel dust removal device and method of use

Abstract

The application discloses a tunnel dust removal device, which comprises a walking trolley, a dust remover arranged on the walking trolley, a running track and a track shield, the track shield surrounds the running track on three or four sides, the walking trolley and the track shield can move along the running track respectively, wherein the track shield can at least block a certain length of the running track close to the working face during blasting. The walking trolley and the track shield can move on the running track, the track shield is moved to one end of the running track close to the working face and blocks a certain length of the running track before blasting, so that the flying stones can be blocked outside and the flying stones can be prevented from entering the track, the track shield can be remotely controlled to exit after blasting, and the walking trolley provided with the dust remover can enter the tunnel to perform dust removal operation, and the application further discloses a use method of the tunnel dust removal device.

Description

TECHNICAL FIELD

[0001] The present application relates to a tunnel dust removal device and a method for using the same. BACKGROUND

[0002] In tunnel construction, drilling and blasting method is often used for tunnel excavation, but a large amount of gun smoke will be generated after blasting, which contains fine particles and harmful gases. The smoke and dust in the tunnel will seriously threaten the health and safety of the tunnel workers. Generally, after the tunnel is blasted, the workers can enter the construction only after the concentration of dust and harmful gases in the tunnel is reduced to the allowable concentration after 15 minutes of ventilation and smoke exhaust. Before the concentration of dust and harmful gases is reduced to the standard line, neither the dust removal personnel nor the equipment can enter. Therefore, as the tunnel deepens, ventilation and smoke exhaust will be very difficult, and the efficiency of ventilation and smoke exhaust will also affect the speed of tunnel excavation.

[0003] On the other hand, blasting will generate flying stones, which will enter the track near the tunnel face for the movement of the walking car, and damage the normal use of the track. SUMMARY

[0004] The present application aims to provide a tunnel rail dust removal device, which can protect the running track during blasting, avoid flying stones from entering, and after blasting is completed, the rail dust removal device can quickly enter the tunnel for dust removal, reducing the concentration of smoke and dust in the tunnel to the concentration that allows workers to enter, thereby saving waiting time and improving the efficiency and progress of tunnel construction. The present application also aims to provide a method for using the above-mentioned tunnel dust removal device.

[0005] To this end, the present application provides a tunnel dust removal device, which comprises a walking car, a dust removal device arranged on the walking car, a running track and a track shield. The track shield surrounds the running track on three or four sides, and the walking car and the track shield can move along the running track. During blasting, the track shield can at least shield a certain length of the running track near the tunnel face.

[0006] Preferably, the outer contour size of the walking car and the dust removal device is smaller than the inner contour size of the track shield, the walking car is provided with a roller matched with the rail head of the running track, the rail waist of the running track is provided with a groove, the track shield is provided with a roller matched with the groove of the running track, and the walking car and the track shield move on the running track without interfering with each other through the cooperation of the rollers and the running track.

[0007] Further, the running track is a single track and is fixed on the tunnel wall, the walking trolley has a concave-shaped bottom plate at the lower part, the inner side of the bottom plate is provided with a roller matched with the running track, the roller surface is in contact with the surface of the track head of the running track; the track shield is in the shape of a back-shaped letter with a notch in the cross section and surrounds the running track, and the track shield is provided with a roller matched with the groove or the surface of the running track.

[0008] Further, the running track is arranged at the middle part of the side wall of the tunnel.

[0009] Further, the track shield roller is arranged at a distance from one end of the track shield.

[0010] Further, a tunnel dust removal device further comprises:

[0011] An electronic monitor for collecting tunnel environment information, the electronic monitor comprising a camera and a depth finder, the depth finder being arranged on the trolley body without obstruction in the direction of the tunnel, and the camera being arranged on the trolley roof;

[0012] A power system for driving the movement of the walking trolley and the track shield, the power system being arranged on the walking trolley and the track shield respectively, and the power system being provided with a brake device and a movement control device;

[0013] A main control chip and a power supply system, the main control chip and the power supply system being arranged on the walking trolley and the track shield respectively, and the main control chip, the power supply system, the electronic monitor and the movement control device being connected through wires, the main control chip having a signal receiving, transmitting and processing module, the electronic monitor transmitting information to the main control chip in real time through the wires after detecting the environment signal, and the main control chip transmitting and outputting the information to the output device of the control room in real time through the wires or wirelessly.

[0014] A controller connected to the main control chip through wires or wirelessly, the controller being capable of sending instructions to the main control chip, and the main control chip being capable of controlling the movement control device to make corresponding actions after receiving the instructions.

[0015] Further, the dust remover comprises a water pipe and an adjustable spray head, the water pipe being fixed on the circular clamping groove of the walking trolley, and the adjustable spray head being connected with the water pipe.

[0016] Further, the adjustable spray head is a rotary spray head, and the rotary spray head is provided with a rotary control device, the rotary control device being electrically connected with the main control chip, and the controller being capable of sending instructions of the rotary spray head to the rotary control device through the main control chip.

[0017] The application further comprises a use method of the tunnel dust removal device, and the method comprises the following steps:

[0018] 1) The running track is fixed on the tunnel wall through the fixed anchor rod;

[0019] 2) Lubricate the running track, and install the walking trolley and the track shield on the running track;

[0020] 3) Do waterproof and dustproof protection for the electronic equipment;

[0021] 4) Before blasting, use the controller to control the track shield to move towards the working face until the track shield shields a distance of the end of the running track close to the working face, and control the track shield roller to stop;

[0022] 5) After blasting, use the controller to control the track shield roller to release the stop and exit outward;

[0023] 6) Use the controller to control the walking trolley to advance into the tunnel, open the electronic monitor, and the electronic monitor transmits the environmental information in the tunnel in real time; after the control personnel move the walking trolley to the specified area according to the depth finder, stop the walking trolley, open the water pipe switch to spray, and according to the information transmitted by the camera, adjust the spraying area of the rotating spray head through the rotating spray head controller or control the walking trolley to advance and retreat to adjust the spraying area;

[0024] 7) After the spraying is completed, use the controller to control the walking trolley to exit the spraying working area, and the dust removal work is completed.

[0025] The technical effects of the present application are:

[0026] (1) The track shield is arranged on the running track, which can prevent flying stones from entering during blasting and ensure the normal use of the running track;

[0027] (2) The inner contour size of the track shield is greater than the outer contour size of the combination of the walking trolley and the dust remover, the track shield and the walking trolley can move on the running track without interfering with each other, the track shield can be remotely controlled to exit the specified dust removal working area after blasting is completed, the walking trolley is remotely controlled to move to the dust removal working area with the help of the depth finder, the tunnel environmental information is transmitted to the rear through the camera, and the controller adjusts according to the information detected by the electronic monitor, so that the purpose of unmanned entry into the tunnel and automatic dust removal of the dust remover is achieved, and the rotating spray head can be adjusted or the walking trolley can be controlled to advance and retreat according to the information detected by the camera to achieve better dust removal effect. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic diagram of a tunnel dust removal device of the present application;

[0029] Figure 2 It is a left view of the roller of the track shield of Example 1 and the running track;

[0030] Figure 3 It is a left view of the track shield of Example 2;

[0031] Figure 4 schematic diagram of running track groove;

[0032] Figure 5 schematic diagram of rotating spray head;

[0033] Figure 6 schematic diagram of water pipe and water pipe slot;

[0034] Figure 7 schematic diagram of walking trolley or track shield controller;

[0035] Figure 8 schematic diagram of rotating spray head controller;

[0036] Figure 9 schematic diagram of running track of example 3.

[0037] Legend: 1, running track; 2, fixed anchor rod; 3, walking trolley; 4, roller; 5, main control chip; 6, indicator light; 7, water pipe; 8, slot; 9, camera; 10, depth finder; 11, rotating spray head; 12, rotating control device; 13, walking trolley or track shield controller; 14, brake button; 15, forward rocker; 16, backward rocker; 17, rotating spray head controller; 18, track shield; 19, dust remover; 20, groove; 21, second track; 22, cushion layer; 101, rail head; 102, rail waist; 103, rail bottom; 401, first driving wheel; 402, first auxiliary wheel; 403, second driving wheel; 404, second auxiliary wheel. DETAILED DESCRIPTION

[0038] The application will be further described below in conjunction with the drawings and examples. Identical parts are denoted by identical reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.

[0039] Referring to Figure 1 , a tunnel dust removal device in example 1 includes a running track 1, a walking trolley 3, a track shield 18, and a dust remover 19 arranged on the walking trolley 3. The walking trolley 3 and the track shield 18 are arranged on the running track 1, the track shield surrounds the running track on four sides, and can move along the running track 1 respectively. The track shield 18 can at least shield a certain length of the running track 1 close to one end of the working face. In this embodiment, the running track 1 is a single track, and obviously the running track 1 can also be a double track.

[0040] In the above embodiment, referring to Figure 1As shown, the outer contour size of the walking trolley 3 combined with the dust collector 19 is smaller than the inner contour size of the track shield 18, the walking trolley 3 is provided with the rollers 4 matched with the track head 101 of the running track 1, the track waist 102 of the running track is provided with the groove 20, the track shield 18 is provided with the rollers 4 matched with the groove 20 of the running track, and the walking trolley 3 and the track shield 18 respectively move on the running track without interference through the matching of the rollers 4 and the running track. The track shield 18 is a hollow rectangular prism with a notch or a hollow semi-cylindrical body, which can be made of a material with certain rigidity. The preferred scheme is that the track shield and the walking trolley can simultaneously move on the track without interference. Another scheme is that a herringbone track can be arranged on a section of the track, after the blasting is completed, the track shield is first moved to one section of the herringbone track, the walking trolley is moved to the designated dust removal operation area, after the dust removal is completed, the walking trolley is withdrawn, and then the track shield is moved to the target running track area.

[0041] In the above embodiment, referring to Figure 1 、 Figure 2 、 Figure 4 As shown, the running track 1 is a single track and is fixed on the side wall or top wall of the tunnel through the fixed anchor rod 2. The preferred scheme is that the fixed anchor rod 2 is fixed on the middle part of the side wall. For the water spraying dust removal mode, the water curtain sprayed on the middle part of the side wall covers a larger range. The walking trolley 3 has a concave-shaped bottom plate at the lower part. The rollers 4 include a driving wheel and an auxiliary wheel. The driving wheel provides power for the running of the trolley, and the auxiliary wheel plays a role of assisting and positioning. The inner side of the bottom plate of the walking trolley is respectively provided with a first driving wheel 401 matched with the upper end surface of the track head 101 of the running track 1 and a first auxiliary wheel 402 matched with the side surface of the track head 101. The wheel surface of the first driving wheel 401 and the first auxiliary wheel 402 is in contact with the surface of the track head 101 of the running track 1. The cross section of the track shield 18 is in the shape of a back-to-back Chinese character. The groove 20 can be arranged on the track waist 102. The track shield 18 is provided with a second driving wheel 403 matched with the upper surface of the track bottom 103 and a second auxiliary wheel 404 matched with the side surface of the track bottom 103. At this time, since the trolley body is limited by the first driving wheel 401, the first auxiliary wheel of the walking trolley and the trolley body will not interfere with the track shield.

[0042] Referring to Figure 1 In the above embodiment, the rollers 4 of the track shield 18 are arranged at a certain distance from one end of the track shield 18. The function is that the track shield 18 can be arranged to protrude from the running track 1 by a distance, so as to shield the running track 1 and prevent flying stones from entering.

[0043] Referring to Figure 1 As shown in the above embodiment, the method further comprises:

[0044] The electronic monitor for collecting tunnel environment information comprises a camera 9 and a depth finder 10, the depth finder 10 is arranged on the trolley body which is unobstructed towards the tunnel direction, preferably the side of the trolley body, and the camera 9 is arranged on the trolley roof, and the camera 9 can rotate 360° on the roof.

[0045] The power system for driving the moving trolley 3 and the track shield 18 to move, the power system is arranged on the moving trolley 3 and the track shield 18 respectively, and the power system is provided with a brake and a movement control device.

[0046] The main control chip 5 and the power supply system, the main control chip 5 and the power supply system are arranged on the moving trolley 3 and the track shield 18 respectively, the main control chip further comprises an indicator light 6, the main control chip 5, the power supply system, the electronic monitor and the movement control device are connected through wires, the main control chip 5 has a signal receiving, transmitting and processing module, after the electronic monitor detects the environment signal, the information is transmitted to the main control chip 5 through the wires in time, and the main control chip 5 transmits and outputs the information to the output device in time through the wires or wireless.

[0047] The controller, the controller is connected with the main control chip 5 through wired or wireless mode, the controller can send instructions to the main control chip 5, and the main control chip 5 can control the movement control device to make corresponding actions after receiving the instructions.

[0048] In the above embodiment, the controller can be used to control the movement of the track shield 18 and the moving trolley 3, before blasting, the track shield 18 is moved to the end of the running track 1 facing the working face and shields a section of track outside the end face of the running track 1 close to the working face, after blasting, the controller is used to control the track shield 18 to move towards the outside of the tunnel, the controller is used to control the moving trolley 3 to move towards the designated dust removal operation area, and the depth finder 10 can measure the distance from the working face or calculate the distance traveled to help the moving trolley 3 to move to the designated dust removal position during the movement of the moving trolley 3.

[0049] Referring to Figure 1 , Figure 6 In the above embodiment, the dust remover 19 comprises a water pipe 7 and an adjustable nozzle, the water pipe 7 is fixed on the circular clamping groove 8 of the moving trolley 3, and the adjustable nozzle is connected with the water pipe 7.

[0050] Referring to Figure 5As shown in the above embodiment, the adjustable spray head is a rotating spray head 11, and a rotating control device 12 is arranged on the rotating spray head 11, the rotating control device 12 and the controller are electrically connected with the main control chip 5, and the controller can control the spraying range by sending an instruction to the main control chip 5 to make the rotating control device 12 rotate. In this embodiment, the controller can determine the area where the spraying needs to be strengthened according to the information detected by the camera 9, and then adjust the spraying by adjusting the rotating spray head 11 or controlling the forward or backward movement of the trolley.

[0051] Referring to Figure 7 , Figure 8 As shown in the above embodiment, the controller can include a walking trolley or track shield controller 13 with a remote control lever and a rotating spray head controller 17, referring to Figure 6 As shown in the above embodiment, the walking trolley or track shield controller 13 includes a brake button 14, a forward lever 15 and a backward lever 16.

[0052] The walking trolley and track shield remote control technology described above is prior art, such as the remote construction track for civil engineering and control method disclosed in CN111232013A, and the remote real-time transmission technology of the electronic monitor is also prior art and has been widely used in various fields of social life, so the above structure and technology will not be described again.

[0053] Referring to Figure 3 As compared with embodiment 1, embodiment 2 is different in that the running track is not provided with a groove, a second track 21 is arranged below the running track, the second driving wheel 403 of the track shield is arranged on the second track 21, the second auxiliary wheel 404 of the track shield is arranged on the track waist of the running track below the walking trolley, the track shield surrounds the running track on three sides and together with the second track forms a protection against flying stones entering the running track, and meanwhile, the walking trolley and the track shield do not interfere with each other in operation.

[0054] Referring to Figure 9 As shown in the above embodiment, the running track arranged in the middle of the side wall can only be used in the case that the weight of the walking trolley and the track shield is relatively light, and embodiment 3 is different from embodiment 1 only in that the cross section of the track shield 18 is in a reverse concave shape, and a cushion layer 22 is arranged below the running track 1 from the tunnel ground upwards.

[0055] The application also includes a use method of the tunnel dust removal device, which includes the following steps:

[0056] 1) The running track 1 is fixed on the tunnel wall through the fixed anchor rod 2;

[0057] 2) Lubricant is arranged on the running track 1, and the walking trolley 3 and the track shield 18 are installed on the running track 1;

[0058] 3) Do a good job of waterproof and dustproof protection of electronic equipment;

[0059] 4) Before blasting, use the controller to control the track shield 18 to move towards the working face until the track shield 18 blocks a certain distance of the running track 1 near the end of the working face, and control the roller 4 of the track shield 18 to stop;

[0060] 5) After blasting, use the controller to control the roller 4 of the track shield 18 to release the stop and exit outward;

[0061] 6) Use the controller to control the walking trolley 3 to advance into the tunnel, turn on the electronic monitor, and the electronic monitor transmits the environmental information in the tunnel in real time. The control personnel move the walking trolley 3 to the designated area according to the depth finder 10, stop the walking trolley 3, and open the water pipe 7 switch to spray. Through the information transmitted by the camera 9, adjust the spraying area of the rotating spray head 11 through the rotating spray head controller 12 or control the walking trolley 3 to advance and retreat to adjust the spraying area;

[0062] 7) After the spraying is completed, use the controller to control the walking trolley 3 to exit the spraying work area, and the dust removal work is completed.

[0063] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principles of the present application shall also be considered as the protection scope of the present application.

Claims

1. A tunnel dust removal device, comprising a traveling trolley and a dust collector mounted on the traveling trolley, characterized in that: It also includes a running track and a track cover. The track cover surrounds the running track on three or four sides. The traveling trolley and the track cover can move along the running track. During blasting, the running track cover can at least block a certain length of the running track near the tunnel face. The running track is a monorail and fixed to the tunnel wall. The outer contour dimensions of the traveling trolley and the dust collector are smaller than the inner contour dimensions of the track cover. The traveling trolley is equipped with rollers that cooperate with the track head. The running track has a groove on its waist, and the lower part of the traveling trolley has an inverted concave chassis. Rollers that mate with the running track are located on the inner side of the chassis, with the roller surfaces contacting the surface of the running track head. The track cover has a notched U-shaped cross-section that surrounds the running track, and rollers that mate with the groove or the surface of the running track are provided on the track cover. A first drive wheel that mates with the end face of the running track head and a first auxiliary wheel that mates with the side surface of the track head are respectively located on the inner side of the traveling trolley chassis, with the surfaces of the first drive wheel and the first auxiliary wheel contacting the surface of the running track head. The track cover has a notched U-shaped cross-section, and a second drive wheel that mates with the upper surface of the track bottom and a second auxiliary wheel that mates with the two side surfaces of the track bottom; or A second track is provided below the running track. The second drive wheel of the track cover is located on the second track, and the second auxiliary wheel of the track cover is located on the waist of the running track below the traveling trolley. The track cover surrounds the running track on three sides and together with the second track, it forms a protection to prevent flying stones from entering the running track.

2. The tunnel dust removal device according to claim 1, characterized in that: The running track is located in the middle of the tunnel sidewall.

3. The tunnel dust removal device according to claim 1, characterized in that: The track cover rollers are located at a certain distance from one end of the track cover.

4. A tunnel dust removal device according to any one of claims 1 to 3, characterized in that: it also... include: An electronic monitor for collecting tunnel environmental information includes a camera and a depth sounder. The depth sounder is mounted on an unobstructed vehicle body facing the tunnel, and the camera is mounted on the roof of the vehicle. A power system for driving the traveling trolley and the track cover to move, wherein the power system is respectively installed on the traveling trolley and the track cover, and the power system is equipped with a braking and movement control device; The main control chip and power supply system are respectively installed on the traveling trolley and the track cover. The main control chip, power supply system, electronic monitor and motion control device are connected by wires. The main control chip has signal receiving, transmission and processing modules. After the electronic monitor detects the environmental signal, it transmits the information to the main control chip in real time through the wire. The main control chip transmits the information to the output device in real time through the wire or wirelessly. The controller is connected to the main control chip via wired or wireless means. The controller can send commands to the main control chip, and the main control chip can control the mobile control device to perform corresponding actions after receiving the commands.

5. A tunnel dust removal device according to claim 4, characterized in that: The controller includes a trolley or track cover controller with a joystick and a rotary nozzle controller. The trolley or track cover controller includes a brake button, a forward joystick, and a reverse joystick.

6. A tunnel dust removal device according to claim 4, characterized in that: The dust collector includes a water pipe and an adjustable nozzle. The water pipe is fixed in a circular slot on the traveling trolley, and the adjustable nozzle is connected to the water pipe.

7. A tunnel dust removal device according to claim 6, characterized in that: The adjustable nozzle is a rotary nozzle, and the rotary nozzle is equipped with a rotation control device. The rotation control device is electrically connected to the main control chip. The controller can send instructions to the main control chip to control the rotation of the rotary nozzle to change the spraying area.

8. A method of using the tunnel dust removal device according to claim 7, characterized in that: Includes the following steps: 1) The running track is fixed to the tunnel wall by fixed anchor bolts; 2) Apply lubricant to the running track and install the traveling trolley and track cover on the running track; 3) Ensure proper waterproof and dustproof protection for electronic equipment; 4) Before blasting, use the controller to move the track cover towards the working face until the track cover blocks a certain distance of the running track near the working face, and then control the track cover rollers to stop. 5) After the blast, use the controller to release the brakes on the track guard rollers and move them outwards; 6) Use the controller to control the traveling trolley to move into the tunnel, turn on the depth sounder and camera. The camera and depth sounder transmit the detected tunnel information in real time. The operator moves the traveling trolley to the designated area according to the depth sounder, stops the traveling trolley, and turns on the water pipe switch to spray. According to the real-time information transmitted by the camera, the spraying area of ​​the rotating nozzle is adjusted by rotating the control device or the traveling trolley is moved forward and backward to adjust the spraying area. 7) After spraying is completed, use the controller to control the traveling trolley to exit the spraying work area, and the dust removal work is completed.

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