Crawler-type tunnel dust removal device

Abstract

The utility model discloses a crawler-type tunnel dust removal device, and relates to the field of tunnel blasting dust removal. Comprising a crawler-type moving device, a large-diameter long-pipe foam gun, an air compression pump, a dust removal vehicle main body, a pressure regulating rotary loop and a conical divergent nozzle. According to the utility model, a storage tank is removed, and a high-pressure interface is designed, so that the volume of the vehicle body is reduced, remote infusion is realized, and the vehicle can work in a small tunnel. And a pumping device at the interface conveys the foaming mixed liquid into the pressure-regulating rotary loop. The pressure-regulating rotary loop controls the outlet pressure and the liquid flow rate of the mixed liquid, and the damage of the high-pressure liquid to the loop is reduced. And a porous gas ring and a conical diverging nozzle are mounted in the large-caliber long-pipe foam gun. A foaming agent is atomized and mixed with gas, so that the dust removal efficiency is improved. Meanwhile, air holes in the air ring incline outwards, so that foam diffusion power is provided, and the diffusion range is expanded.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tunnel dust removal technical field, concretely relates to a crawler type tunnel dust removal device. BACKGROUND

[0002] In the tunnel construction process, dust not only seriously pollutes the construction environment, but also seriously threatens the respiratory system of workers, and even may cause pneumoconiosis and other occupational diseases. In addition, dust may also explode under certain conditions, further increasing the safety risk in construction. Tunnel dust removal technology is essential.

[0003] Traditional dust removal methods, such as spraying water, ventilation dust removal and dust removal equipment dust removal, can reduce dust concentration to a certain extent, but all have obvious limitations. The dust removal efficiency of spraying water on respirable dust is low, ventilation dust removal cannot stop the diffusion of dust, and dust removal equipment dust removal has problems of high energy consumption, easy damage and high investment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a crawler type tunnel dust removal device. To solve the technical problems of limited dust removal range, low efficiency and high energy consumption in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] The application discloses a crawler type tunnel dust removal device, which comprises a crawler type mobile device, a dust removal vehicle main body is arranged on the crawler type mobile device and is used for receiving and transmitting a foaming agent, a foam spraying module is arranged on the dust removal vehicle main body, and the dust removal vehicle main body is connected with the foam spraying module.

[0007] The foam spraying module comprises a pressure regulating rotary circuit, one end of the pressure regulating rotary circuit is fixedly connected to the dust removal vehicle main body and communicates with the dust removal vehicle main body, the other end of the pressure regulating rotary circuit is connected with a large-diameter long tube foam launching port, an air compressor pump is fixedly connected to one side of the pressure regulating rotary circuit, and a high-pressure conduit is arranged between the air compressor pump and the large-diameter long tube foam launching port.

[0008] Preferably, the crawler type mobile device comprises a track, a reduction gearbox and a motor; the motor is connected with the reduction gearbox and is used for providing power, the track is connected with the reduction gearbox, and the reduction gearbox and the motor are arranged at the bottom of the dust removal vehicle main body.

[0009] Preferably, the track is connected with the reduction gearbox through a reduction gearbox connecting rod.

[0010] Preferably, the dust removal vehicle body comprises a vehicle body frame, a vehicle body bottom plate, a foaming agent conveying pipe and an external foaming agent interface; the vehicle body bottom plate is arranged at the bottom of the vehicle body frame, the crawler-type moving device is fixed on the vehicle body bottom plate, the foaming agent conveying pipe is arranged in the vehicle body frame, one end of the foaming agent conveying pipe is connected with the pressure regulating rotary circuit, and the other end of the foaming agent conveying pipe is in communication with the external foaming agent interface arranged on the side wall of the vehicle body frame.

[0011] Preferably, the pressure regulating rotary circuit adopts a rotary design and is provided with an overflow valve and a pressure reducing valve.

[0012] Preferably, a conical diverging nozzle is arranged at the interface between the large-diameter long-tube foam launching port and the pressure regulating rotary circuit.

[0013] Preferably, the conical diverging nozzle is a conical multi-hole pipe.

[0014] Preferably, an annular multi-hole air ring is arranged at the upper end of the large-diameter long-tube foam launching port and is in communication with the high-pressure guide pipe.

[0015] Preferably, the air holes of the annular multi-hole air ring are inclined to the outlet of the large-diameter long-tube foam launching port and are used for lifting the foam output power.

[0016] Preferably, the overflow valve is arranged on the pressure regulating rotary circuit close to the dust removal vehicle body, and the pressure reducing valve is arranged at the connection between the pressure regulating rotary circuit and the large-diameter long-tube foam launching port.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The dust removal device adopts the crawler-type moving device, the crawler provides the traction force for pushing the vehicle to advance, is suitable for complex terrain and working conditions, has better stability and carrying capacity compared with the traditional wheel type machine, improves the working efficiency, is suitable for the complex ground environment inside the tunnel and has wide application range. The device also adopts the foam spraying module, the conical nozzle achieves the function of pressurization, and the multi-hole air ring is additionally arranged at the nozzle, the foaming agent is atomized and mixed with air to foam, the foaming effect is obvious, the foam dust removal covers a large range, and the cleaning and dust reduction effect is remarkable. Meanwhile, the equipment is manually remotely operated, the construction process is safe and reliable, low cost and high quality dust removal are realized.

[0019] Further, in the foaming process, the air compressor pump is connected with the air ring, the air ring is arranged on the middle segment of the large-diameter long-tube foam gun, and the conical diverging nozzle is arranged in the large-diameter long-tube foam gun, which has the function of dispersing the mixed agent input into the gun barrel, so as to mix with the high-pressure air in the air ring and realize high-efficiency foaming.

[0020] Further, the porous air ring gas hole is slightly inclined to the emission port, the design makes the high-pressure gas sprayed by the porous air ring can provide power for foam diffusion, increases the diffusion distance, and improves the working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 is a three-dimensional structural schematic view of the present application;

[0023] Figure 2 is a schematic view of the foam spraying module of the present application;

[0024] Figure 3 is a partial sectional view of the foam emission port of the present application;

[0025] Figure 4 is a three-dimensional structural schematic view of the dust removal vehicle body of the present application;

[0026] Figure 5 is a top view schematic view of the dust removal vehicle body of the present application;

[0027] Figure 6 is a three-dimensional structural schematic view of the track mobile device of the present application;

[0028] Figure 7 is a partial view of the track mobile device of the present application.

[0029] Wherein: 1-track mobile device; 101-motor; 102-reduction box; 103-connecting rod; 104-track; 2-dust removal vehicle body; 201-vehicle body frame; 202-vehicle body bottom plate; 203-foaming agent conveying pipe; 204-outer delivery foaming agent interface; 3-foam spraying module; 301-pressure regulating rotary circuit; 3011-overflow valve; 3012-pressure regulating valve; 302-air compression pump; 303-high pressure conduit; 304-large diameter long tube foam emission port; 3041-cone-shaped divergent nozzle; 3042-porous air ring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0032] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the present application product when it is usually placed, it is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0034] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0035] In the description of the embodiments of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "set", "mount", "connected", "connected" appear, they should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] The present application will be described in further detail below in conjunction with the drawings:

[0037] Referring to Figures 1-7 The application discloses a crawler tunnel dust removal device, characterized in that comprising a crawler moving device 1, a dust removal vehicle body 2 is arranged on the crawler moving device 1, and is used for receiving and transmitting a foaming agent; a foam spraying module 3 is arranged on the dust removal vehicle body 2.

[0038] The foam spraying module 3 comprises a pressure regulating rotary circuit 301, one end of the pressure regulating rotary circuit 301 is fixedly connected to the dust removal vehicle body 2 and communicates with the dust removal vehicle body 2, the other end of the pressure regulating rotary circuit 301 is connected to a large-diameter long-tube foam launching port 304, an air compression pump 302 is fixedly connected to one side of the pressure regulating rotary circuit 301, and a high-pressure conduit 303 is arranged between the air compression pump 302 and the large-diameter long-tube foam launching port 304.

[0039] In some embodiments, the crawler moving device 1 comprises a crawler 104, a reduction gearbox 102 and a motor 101; the motor 101 is connected to the reduction gearbox 102 and used for providing power, the crawler 104 is connected to the reduction gearbox 102, and the reduction gearbox 102 and the motor 101 are both arranged at the bottom of the dust removal vehicle body 2.

[0040] Further preferably, the crawler 104 is connected to the reduction gearbox 102 through a reduction gearbox connecting rod 103.

[0041] In some embodiments, the dust removal vehicle body 2 comprises a vehicle body frame 201, a vehicle body bottom plate 202, a foaming agent conveying pipe 203 and an external foaming agent outlet 204; the vehicle body bottom plate 202 is arranged at the bottom of the vehicle body frame 201, the crawler moving device 1 is fixed on the vehicle body bottom plate 202, the foaming agent conveying pipe 203 is arranged in the vehicle body frame 201, one end of the foaming agent conveying pipe 203 is connected to the pressure regulating rotary circuit 301, and the other end of the foaming agent conveying pipe 203 communicates with the external foaming agent outlet 204 arranged on the side wall of the vehicle body frame 201.

[0042] In some embodiments, the pressure regulating rotary circuit 301 adopts a rotary design and is installed with an overflow valve 3011 and a pressure reducing valve 3012.

[0043] In some embodiments, a caterpillar tunnel dust removal device, comprising: a caterpillar mobile device 1, a dust removal vehicle body 2, a foam spraying module 3. The caterpillar mobile device 1 comprises a driving caterpillar 104, which is connected to a reduction box 102 by a reduction box connecting rod 103, and is connected to the reduction box 102 by a motor 101 to provide power for the mobile device. The reduction box 102 and the motor 101 are fixed to the vehicle body bottom plate 202, which is connected to the vehicle body frame 201, and the inside of the vehicle body frame 201 is provided with a foaming agent conveying pipe 204, and the tail of the foaming agent conveying pipe 204 is connected with a foaming agent tail interface 204. The foam spraying module 3 is connected to the top of the foaming agent conveying pipe 204 through a pressure regulating rotary circuit 301, and the pressure regulating rotary circuit 301 is provided with an overflow valve 3011 and a pressure reducing valve 3012. The output end of the pressure regulating rotary circuit 301 is connected with a large-diameter foam launching port 304, and the inside of the large-diameter foam launching port 304 is provided with a conical diverging nozzle 3041 and a porous air ring 3042 at the top. An air compressor pump 302 is installed at the lower part of the large-diameter foam launching port 304 and is connected with the porous air ring 3042 through a high-pressure conduit 303. The dust removal vehicle body 2 serves as the main structure of the entire dust removal device, and carries and fixes the machine body components.

[0044] In some embodiments, the caterpillar mobile device 1 is internally provided with a hydraulic walking reduction machine 102, which is connected with a driving sprocket, i.e. a caterpillar, through a connecting rod 103. The torque adjustment and transmission are realized.

[0045] In some embodiments, the pressure regulating rotary circuit 301 adopts a rotary design and is provided with an overflow valve 3011 and a pressure reducing valve 3012. The pressure regulating rotary circuit is connected with the main circuit to control the outlet pressure of the mixed liquid. The stability of the device is improved, and the damage of high-pressure liquid to the circuit is reduced.

[0046] In some embodiments, the dust removal vehicle body 2 is provided at the tail with an external foaming interface 204, and the design of the liquid storage tank is cancelled, so as to reduce the volume of the machine body and improve the flexibility. The mixed liquid is remotely conveyed through a pumping device and a pipeline. The foaming agent conveying pipe 203 is installed in the vehicle body shell 201 of the dust removal vehicle body 2, and the vehicle body bottom plate 202 is installed at the bottom of the vehicle body to play a protection role.

[0047] In some embodiments, the conical diverging nozzle 3041 is installed at the interface between the large-diameter long-tube foam launching port 304 and the pressure regulating rotary circuit 301, which functions to disperse the mixed agent input into the gun barrel into water mist, so as to ensure the foaming efficiency.

[0048] In some embodiments, the large-diameter long-tube foam launching port 304 is provided with a ring-shaped porous air ring 3042 at its upper end. The air compression pump 302 delivers high-pressure gas from the high-pressure conduit 303 into the porous air ring 3042, which is then diffused into the gun chamber and mixed with the foaming agent. The air holes are slightly inclined towards the muzzle, which helps to boost the output of the foam.

[0049] In some embodiments, the conical diverging nozzle 3041 is a conical porous surface pipe.

[0050] Embodiment 1: As shown in the figure, the utility model provides a tracked foam dust removal vehicle, which comprises a dust removal vehicle body 2, and the moving device of the dust removal vehicle body 2 is a tracked moving device 1 which is fixedly connected with the vehicle body and comprises a tracked moving device 1, a foam agent inputting port 204 is installed at the tail of the dust removal vehicle body 2, and the foam agent is a compound green foaming agent which is composed of four kinds of reagents, and the formula is as follows: the foaming agent is coconut oil fatty acid diethanol amide, the foam stabilizer is methyl cellulose, the humectant is fatty alcohol polyoxyethylene ether glucose, and the thickening agent is cationic polyacrylamide, the mass ratio of the four substances is 3:2:1:5:1, the mixing mass ratio error should not be greater than 10%, and the maximum foaming rate can reach 18.72 times. The vehicle body frame 201 and the pressure regulating rotary circuit 301 are designed in a rotary manner, and an overflow valve 3011 and a speed regulating valve 3012 are installed. The pressure regulating rotary circuit 301 is directly connected with a large-diameter long-tube foam launching port 304, the large-diameter long-tube foam launching port 304 is provided with a conical diverging nozzle 3041, the structure is that a plurality of small holes are closely arranged, and a ring-shaped porous air ring 3042 is arranged at the middle of the cavity, the high-pressure conduit 303 is connected below the ring-shaped porous air ring 3042, the high-pressure conduit 303 is connected with the air compression pump 302, and a high-pressure gas conveying path is formed. The tracked moving device 1 is internally provided with a motor 101 and a speed reducer 102, the speed reducer is connected with a driving sprocket of a tracked belt 104 through a connecting rod 103. The tracked moving device 1 is provided with a vehicle bottom plate 202 at the lower end for protection.

[0051] The specific settings and effects of the embodiment are as follows:

[0052] The foaming agent is inputted into the foaming agent through the foaming agent interface 204. The design of the storage tank is cancelled, the volume of the machine body is reduced, and the flexibility is improved. The mixed liquid is remotely delivered through the pumping device and the pipeline. Then the foaming agent is delivered to the pressure regulating rotary circuit 301 through the foaming agent delivery pipe 203 on the vehicle body frame 201. The circuit adopts a rotary design, and is provided with an overflow valve and a speed regulating valve. The pressure regulating rotary circuit 301 is connected with the main circuit, and controls the outlet pressure of the mixed liquid and the flow rate of the foaming mixed agent. The stability of the device is improved, and the damage of the high-pressure liquid to the circuit is reduced. The air compression pump 302 arranged independently below the large-diameter long-tube foam gun 304 inhales the gas, and delivers the compressed high-pressure gas to the annular porous air ring 3042 through the connected high-pressure pipeline 303. The high-pressure gas enters the gun chamber from the air holes around the annular porous air ring 3042 and mixes with the foaming liquid. The conical diverging nozzle 3041 installed inside the large-diameter long-tube foam gun 304 performs water atomization on the mixed agent inputted into the gun nozzle, fully interacts with the high-pressure gas, and guarantees the foaming efficiency. The high-pressure gas pushes the foam out of the gun nozzle.

[0053] Taking the ultra-clean reconstruction project of the No. 2 unit of Fushun Thermal Power Branch Company as an example, the project successfully passed the 168-hour trial operation in October 2015 and was formally put into operation. In the project, the foam dust removal technology is used to reduce the dust emission in the thermal power production process. By introducing the foam dust removal system, the project successfully reduces the dust concentration, improves the air quality, and achieves the standard of ultra-clean emission.

[0054] The foam dust removal technology can cover the dust source without gap, and fundamentally prevents the dust from spreading outward.

[0055] After the foam liquid is sprayed into the dust-containing air, a large number of foam particle groups are formed, the collision efficiency with dust particles is increased, and the dust removal efficiency is improved.

[0056] In summary, the utility model discloses a caterpillar type foam dust removal vehicle relates to the field of tunnel blasting dust removal. Including caterpillar type mobile device, large -diameter long -tube foam gun, air compression pump, dust removal vehicle main part, pressure regulating rotary circuit, conical diverging nozzle. In the utility model, remove the storage tank, design high -pressure interface to reduce the volume of the car body, and realize remote infusion can work in small -size tunnel. The pumping device at the interface transports the foaming mixed liquid into the pressure regulating rotary circuit. The pressure regulating rotary circuit controls the outlet pressure of the mixed liquid and the liquid flow rate, and reduces the damage of the high-pressure liquid to the circuit. The large-diameter long-tube foam gun is internally provided with a porous air ring and a conical diverging nozzle. The foaming agent is atomized and mixed with the gas, and the dust removal efficiency is improved. Meanwhile, the air holes on the air ring are inclined outward, the foam diffusion power is provided, and the diffusion range is extended.

[0057] The above merely is preferred embodiment of the present utility model, and is not for limiting the present utility model, for the person skilled in the art, the present utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A crawler-type tunnel dust removing device characterized by comprising: The application relates to a track mobile device (1) which is provided with a dust removal vehicle body (2) for receiving and transmitting a foaming agent; the dust removal vehicle body (2) is provided with a foam spraying module (3); The foam spraying module (3) comprises a pressure regulating rotary circuit (301) which is fixed at one end on the dust removal vehicle body (2) and communicates with the dust removal vehicle body (2), and is connected at the other end with a large-diameter long-tube foam launching port (304); an air compression pump (302) is fixed on one side of the pressure regulating rotary circuit (301); and a high-pressure conduit (303) is arranged between the air compression pump (302) and the large-diameter long-tube foam launching port (304).

2. The track-type tunnel dusting device of claim 1, wherein, The track mobile device (1) comprises a track (104), a reduction gearbox (102) and a motor (101); the motor (101) is connected with the reduction gearbox (102) for providing power; the track (104) is connected with the reduction gearbox (102); and the reduction gearbox (102) and the motor (101) are arranged at the bottom of the dust removal vehicle body (2).

3. The track-type tunnel dusting device of claim 2, wherein, The track (104) is connected with the reduction gearbox (102) through a reduction gearbox connecting rod (103).

4. The track-type tunnel dusting device of claim 1, wherein, The dust removal vehicle body (2) comprises a vehicle body frame (201), a vehicle body bottom plate (202), a foaming agent conveying pipe (203) and an external foaming agent outlet (204); the vehicle body bottom plate (202) is arranged at the bottom of the vehicle body frame (201); the track mobile device (1) is fixed on the vehicle body bottom plate (202); the vehicle body frame (201) is internally provided with the foaming agent conveying pipe (203); one end of the foaming agent conveying pipe (203) is connected with the pressure regulating rotary circuit (301); and the other end is in communication with the external foaming agent outlet (204) arranged on the side wall of the vehicle body frame (201).

5. The track tunnel dusting device of claim 1, wherein, The pressure regulating rotary circuit (301) adopts a rotary design and is provided with an overflow valve (3011) and a pressure reducing valve (3012).

6. The track tunnel dusting device of claim 1, wherein, A conical diverging nozzle (3041) is arranged at the interface between the large-diameter long-tube foam launching port (304) and the pressure regulating rotary circuit (301).

7. A tunnel dusting device according to claim 6, wherein, The conical diverging nozzle (3041) is a conical multi-hole pipe.

8. The track-mounted tunnel dusting device of claim 1, wherein, An annular multi-hole air ring (3042) is arranged at the upper end of the large-diameter long-tube foam launching port (304) and is in communication with the high-pressure conduit (303).

9. The track-mounted tunnel dusting device of claim 8, wherein, The air holes of the annular multi-hole air ring (3042) are inclined to the outlet of the large-diameter long-tube foam launching port (304) and are used for lifting the foam output power.

10. The track-mounted tunnel dusting device of claim 5, wherein, The overflow valve (3011) is arranged on the pressure regulating rotary circuit (301) close to the dust removal vehicle body (2); and the pressure reducing valve (3012) is arranged at the connection between the pressure regulating rotary circuit (301) and the large-diameter long-tube foam launching port (304).

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