CN212426915U - Tunnel wall cleaning vehicle - Google Patents

Abstract

The utility model relates to a tunnel wall cleaning vehicle, which comprises a vehicle body (10), wherein the front side and the rear side below the vehicle body (10) are respectively provided with a bogie (12), the two sets of bogies (12) at the front side and the rear side can be the same or different according to requirements, and the bogie (12) is a running system representative of the whole vehicle; a cab (11), a power room (13), a fan (14), an air compressor (15), a hydraulic system (16) and an electrical system (17) are arranged above the vehicle body (10), and the cleaning vehicle is also provided with a dust removal system (18) and a dry ice cleaning working device (20); the power room (13) is internally provided with power equipment required by the work of the vehicle and dry ice cleaning equipment (19). The utility model discloses a tunnel wall cleaning cart adopts the clean mode of dry ice, can carry out online cleanness to the railway tunnel wall from taking power, is particularly useful for the electric equipment installation regional cleanness on the subway tunnel wall, has solved among the prior art problem that the washing mode can not be used for clean electric equipment installation region.

Description

Tunnel wall cleaning vehicle

Technical Field

The invention relates to the technical field of railway maintenance machinery, in particular to a tunnel wall cleaning vehicle.

Background

After the subway tunnel is built, along with the increase of operation time, the top, two sides, a track bed, trackside equipment and the like of the tunnel wall can generate dust pollution and dust accumulation in different degrees. Especially, tunnel side walls, cables and equipment lack of cleaning dust accumulation due to complex structures, and the dust accumulation is increasingly serious. The long-term accumulation of dust can lead to electrical equipment failures, such as local short circuits, electric leakage, various failures caused by poor heat dissipation of heating elements, and the like. Because dust on the tunnel wall and on the electrical equipment has great harm to the safe operation of the electrical equipment, the tunnel wall of the subway, especially the parts provided with the electrical equipment and protruding cable racks, should be cleaned regularly, so that the dust harm is reduced to the minimum, and the safe operation of the electrical equipment is ensured.

At present, the number of devices capable of automatically cleaning the wall of the subway tunnel on line in the market is small, and most subway companies adopt a manual cleaning mode. In the prior art, a method for cleaning a tunnel wall by adopting a high-pressure water cleaning method is adopted, but the method for cleaning the tunnel wall by adopting high-pressure water has certain damage to cables and communication equipment, has potential safety hazards when electric equipment such as cables leaks electricity, and is not suitable for cleaning an electric equipment mounting area on the tunnel wall. To solve the problem, the prior art proposes a high-pressure air cleaning mode, because the electrical equipment on the wall of the subway tunnel and the support frame for installing cables protrude out of the inner wall of the tunnel in a larger size, if the high-pressure air is adopted to remotely blow dust in a cleaning area, the air circulation is poor in the tunnel environment, the dust in the tunnel is very large when the cleaning mode is adopted for operation, the dust concentration easily exceeds the specification, the operation is not suitable, and the practicability is poor.

For example, the patent application of the invention in China with publication number CN102828483A discloses a tunnel dry ice cleaning machine, which comprises an engineering truck, an air compressor, a liquid carbon dioxide storage tank, a cleaning nozzle machine bogie, a cleaning control display, a control platform and a dry ice cleaning device, wherein the liquid carbon dioxide storage tank, the cleaning nozzle machine bogie, the cleaning control display, the control platform and the dry ice cleaning device are arranged on the engineering truck; the cleaning control display is arranged on the control platform and used for displaying the state parameters of the whole equipment; a control system is packaged in the control platform, and the whole equipment is controlled by the control system; the dry ice cleaning device comprises a dry ice generating pipe, a compressed air pipe and a cleaning nozzle pipe; the dry ice sprayed by the invention is dry sand ice with soft texture, small particle size and low density, is beneficial to cleaning the surface of concrete, does not damage the concrete, and reduces the influence of dry ice micro-explosion on gaps and cracks on the surface of the concrete. However, the spraying of dry ice onto the tunnel wall generates dust; in addition, because the ventilation condition in the tunnel is poor, a large amount of carbon dioxide is generated in the tunnel after the dry ice is cleaned.

Disclosure of Invention

In order to solve the technical defects in the prior art, the invention aims to provide a tunnel wall cleaning vehicle which adopts a dry ice cleaning mode, can clean a railway tunnel wall on line with power, is particularly suitable for cleaning an electrical equipment installation area on the subway tunnel wall, and solves the problem that a water washing mode in the prior art cannot be used for cleaning the electrical equipment installation area.

For clean regional raise dust when preventing to clean, a cover body need be designed, if the cover body all adopts whole board preparation all around, because cable support etc. stretches out the wall on the subway tunnel wall longer, for preventing the cover body and cable support etc. electrical equipment from interfering, cover body tip can not effectively cover the operation region when cleaning operation, consequently, in this embodiment cover body both sides design for arranging the brush board, like this when carrying out cleaning operation to electrical equipment installation region on the tunnel wall, the brush hair can realize cleaning function on the one hand and can avoid the barrier on the other hand, so design can be close to the tunnel wall with the cover body as far as possible through the arm during making cleaning operation, prevent the raise dust, the problem that high pressure wind blows clean mode raise dust big among the prior art has been solved.

The square tube of the sky circle of the cover body is externally connected with a negative pressure fan, so that dust in the cover body can be sucked away, carbon dioxide generated after dry ice cleaning can be sucked away, and the problem of carbon dioxide concentration increase caused by dry ice cleaning in a tunnel is avoided.

Principle of dry ice cleaning action: compressed air accelerates dry ice (temperature as low as-78.5 ℃) to reach the polluted surface at a very high speed through a nozzle to cause thermodynamic impact, bond between the pollutant and the surface is broken, cracks are generated, and then the dry ice is rapidly sublimated to cause tiny carbon dioxide explosion, so that the pollutant is dropped off. The tunnel wall cleaning vehicle provided by the invention adopts a dry ice cleaning mode, can clean the railway tunnel wall, is particularly suitable for cleaning the electrical equipment installation area on the subway tunnel wall, and solves the problem that a water washing mode in the prior art can not be used for cleaning the electrical equipment installation area.

In order to achieve the design purpose, the scheme adopted by the invention is as follows:

the invention provides a tunnel wall cleaning vehicle, which comprises a vehicle body, wherein the front side and the rear side below the vehicle body are respectively provided with a bogie, the two sets of bogies on the front side and the rear side can be the same or different according to requirements, and the bogies are represented by a running system of the whole vehicle; a cab, a power room, a fan, an air compressor, a hydraulic system and an electrical system are arranged above the vehicle body, and the cleaning vehicle is also provided with a dust removal system and a dry ice cleaning working device; the power room is internally provided with power equipment required by the work of the vehicle and dry ice cleaning equipment.

Preferably, the dry ice cleaning working device comprises a cover body, a dry ice spraying assembly and a mechanical arm, wherein the end head of the mechanical arm is connected with the back of the cover body; the dry ice spraying assembly is fixedly connected to the cover body, and the position between the dry ice spraying assembly and the cover body is relatively unchanged no matter what operation state is.

In any of the above schemes, preferably, the input end of the dry ice spraying assembly is connected with the output end of the dry ice cleaning device through a pipeline, the output end of the cover body is connected with the input end of the dust removal system through a pipeline, and the output end of the dust removal system is connected with the fan.

The working principle of the tunnel wall cleaning vehicle is as follows: the dry ice cleaning equipment conveys dry ice to a dry ice spraying assembly of the dry ice cleaning working device through a pipeline, the dry ice spraying assembly sprays the dry ice to the tunnel wall to clean the dry ice, then carbon dioxide, dust and the like in the cover body are input into the dust removal system from the output port of the cover body under the negative pressure action of the fan, and after dust is removed by the dust removal system, clean air is output from the air outlet of the fan.

In any of the above schemes, preferably, the dust removal system comprises a gravity dust remover, a bag-type dust remover and a liquid dust removal chamber in sequence from an input port to an output port, the liquid dust removal chamber is communicated with the drying chamber, the input mixed gas of dust, carbon dioxide and the like is input into the liquid dust removal chamber after solid particles are removed by the gravity dust remover and the bag-type dust remover, the carbon dioxide is removed by the liquid dust removal chamber, and finally clean air is output.

In any of the above aspects, it is preferable that the cover body includes a baffle, a row brush plate, a dome tube, and a flat plate.

In any of the above schemes, preferably, the baffle comprises an upper plate and a lower plate, and is symmetrically arranged on the upper and lower sides of the cover body.

In any of the above aspects, preferably, the brush row plates are fixed to left and right sides of the upper and lower plates of the baffle.

In any of the above schemes, preferably, the number of the dome tubes is two, and the dome tubes are welded to the left and right sides of the flat plate respectively to form the back plate of the cover body.

In any of the above schemes, preferably, the back of the flat plate is further welded with a first ear seat and a second ear seat, and the first ear seat is connected with the end shaft of the mechanical arm; the second lug seat is connected with the shaft of the oil cylinder on the mechanical arm.

In any of the above schemes, preferably, the pipe at the top circle and the bottom circle is externally connected with a negative pressure fan through a hose.

In any of the above aspects, preferably, the row of brush plates is composed of a rectangular fixing plate and bristles mounted on the fixing plate.

In any of the above schemes, preferably, the width of the row brush plate is 400-500 mm.

In any of the above schemes, preferably, a plurality of dry ice blasting heads are uniformly distributed along the circumference in the dry ice blasting assembly, the dry ice blasting area of each dry ice blasting head is a sector area, and the relative position of adjacent dry ice blasting heads is based on the predetermined size of the intersection or the intersection of the outer sides of the sector areas.

In any of the above aspects, preferably, the flat plate is provided with a plurality of windows, and the number of the windows is the same as that of the dry ice blasting heads in the dry ice blasting assembly.

In any of the above schemes, preferably, the flat plate is provided with 3 windows, and when the maximum working distance of the selected dry ice sprayer is smaller than the width of the row brush plate, the windows are used as limiting holes of the dry ice sprayer; when the maximum working distance of the dry ice sprayer is larger than the width of the row brush plate, the window is used as a passage for the sprayed dry ice to pass through the flat plate.

In any of the above schemes, preferably, two sliding plates are arranged on the outer side of the row brush plate, each sliding plate is connected with an adjusting cylinder, and the upper side and the lower side of each sliding plate are connected with the baffle plate through a guide mechanism.

In any of the above aspects, preferably, the guide mechanism includes a guide groove and a roller; guide grooves are formed in the edges of the left side and the right side of one face, opposite to the row of brush plates, of the baffle plate, idler wheels are installed in the guide grooves, and the sliding plate moves back and forth along the brush hair direction of the row of brush plates under the action of the adjusting oil cylinder and the idler wheels.

In any of the above schemes, preferably, the cleaning vehicle further comprises an air knife arranged on the back panel of the cover body; and the gas input end of the air knife is connected with the high-pressure gas outlet of the air compressor through a pipeline.

The tunnel wall cleaning vehicle has the following advantages:

1. for clean regional raise dust when preventing to clean, the cover body of design, if the cover body all adopts whole board preparation all around, because cable support etc. stretches out the wall on the subway tunnel wall longer, for preventing the cover body and cable support etc. electrical equipment from interfering, cover body tip can not effectively cover the operation region when cleaning operation, consequently, in this embodiment cover body both sides design for arranging the brush board, like this when carrying out cleaning operation to electrical equipment installation region on the tunnel wall, the brush hair can realize cleaning function on the one hand and can avoid the barrier, so design can be close to the tunnel wall with the cover body as far as possible through the arm during making cleaning operation, prevent the raise dust, the problem that high pressure wind blows clean mode raise dust big among the prior art has been solved.

2. The square tube of the sky circle of the cover body is externally connected with a negative pressure fan, so that dust in the cover body can be sucked away, carbon dioxide generated after dry ice cleaning can be sucked away, and the problem of carbon dioxide concentration increase caused by dry ice cleaning in a tunnel is avoided.

3. The tunnel wall cleaning vehicle disclosed by the invention can be suitable for traffic tunnels such as roads, railways and subways, is particularly suitable for cleaning an electrical equipment mounting area on a railway tunnel wall, can be operated on line along with vehicles, and is high in cleaning efficiency and good in cleaning effect.

Drawings

Fig. 1 is a schematic structural view of a tunnel wall cleaning vehicle according to a first embodiment of the present invention.

Fig. 2 is a schematic structural view of a dry ice cleaning working device in the preferred embodiment shown in fig. 1 of the tunnel wall cleaning vehicle according to the present invention.

Figure 3 is a rear view of the preferred embodiment of the tunnel wall cleaning vehicle of figure 2 according to the present invention.

Fig. 4 is a schematic structural view of the tunnel wall cleaning vehicle according to the present invention, with the dry ice blasting assembly removed, in the preferred embodiment shown in fig. 2.

Fig. 5 is a schematic structural view of the dry ice blasting assembly of the embodiment of fig. 1 of the tunnel wall cleaning vehicle according to the invention.

Fig. 6 is a schematic structural view of a tunnel wall cleaning vehicle according to a second embodiment of the invention.

Figure 7 is an enlarged view at a in the embodiment of figure 6 of the tunnel wall cleaning vehicle according to the invention.

Fig. 8 is a schematic structural view of a tunnel wall cleaning vehicle according to a third embodiment of the invention.

Fig. 9 is a schematic view of the embodiment of the tunnel wall cleaning vehicle according to the invention shown in fig. 8 with the sliding plate removed.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, from which other embodiments can be derived by a person skilled in the art without inventive effort.

The first embodiment is as follows:

as shown in fig. 1, the tunnel wall cleaning vehicle according to the present invention is schematically constructed. The tunnel wall cleaning vehicle comprises a vehicle body 10, wherein the front side and the rear side below the vehicle body 10 are respectively provided with a bogie 12, the two sets of bogies 12 on the front side and the rear side can be the same or different according to requirements, and the bogie 12 is a running system representative of the whole vehicle; a cab 11, a power room 13, a fan 14, an air compressor 15, a hydraulic system 16 and an electrical system 17 are arranged above the vehicle body 10, and the cleaning vehicle is also provided with a dust removal system 18 and a dry ice cleaning working device 20; the power room 13 is provided with power equipment required by the vehicle to work and also provided with dry ice cleaning equipment 19.

Referring next to fig. 2 and 3, a schematic structural diagram of a dry ice cleaning working device in the preferred embodiment shown in fig. 1 of the tunnel wall cleaning vehicle according to the present invention is shown.

In this embodiment, the dry ice cleaning working device 20 includes a cover 201, a dry ice spraying assembly 202, and a mechanical arm 203, wherein the tip of the mechanical arm 203 is connected to the back of the cover 201; the dry ice blasting assembly 202 is fixedly attached to the hood 201, and the position between the dry ice blasting assembly 202 and the hood 201 is relatively unchanged regardless of the operation state.

In this embodiment, the input end of the dry ice spraying assembly 202 is connected to the output end of the dry ice cleaning device 19 through a pipeline, the output end of the cover 201 is connected to the input end of the dust removing system 18 through a pipeline, and the output end of the dust removing system 18 is connected to the fan 14.

The working principle of the tunnel wall cleaning vehicle is as follows: the dry ice cleaning device 19 conveys dry ice to a dry ice spraying assembly 202 of the dry ice cleaning working device 20 through a pipeline, the dry ice spraying assembly 202 sprays the dry ice onto the tunnel wall to clean the tunnel wall, then carbon dioxide, dust and the like in the cover body 201 are input into the dust removal system 18 from an output port of the cover body 201 under the action of negative pressure of the fan 14, and after dust is removed by the dust removal system 18, clean air is output from an air outlet of the fan 14.

In this embodiment, dust pelletizing system 18 includes gravity dust collector, sack cleaner, liquid clean room from the input port to the delivery outlet in proper order, liquid clean room and drying chamber intercommunication, the mist such as dust and the carbon dioxide of input, through gravity dust collector and sack cleaner after detaching solid particulate matter, input liquid clean room again, the carbon dioxide is detached by liquid clean room, exports clean air at last.

In this embodiment, a drying chamber is added for drying the output gas of the liquid dust chamber. In an alternative embodiment, the liquid dust chamber and the drying chamber may be disposed before the gravity dust collector or between the gravity dust collector and the bag dust collector, and the difference in the positions does not affect the dust collecting performance of the dust collecting system 18.

In this embodiment, the cover 201 includes a baffle 31, a row of brush plates 32, a dome tube 33, and a plate 34.

As shown in fig. 4, the tunnel wall cleaning vehicle according to the present invention has a schematic structural view of the preferred embodiment shown in fig. 2 with the dry ice blast assembly removed.

In this embodiment, the baffle 31 includes an upper plate and a lower plate, and is symmetrically installed on the upper and lower sides of the cover 201.

In this embodiment, the row brush plates 32 are fixed to the left and right sides of the upper and lower plates of the barrier 31.

In this embodiment, two dome tubes 33 are welded to the left and right sides of the flat plate 34, respectively, to form a back plate of the cover 201.

In this embodiment, a first ear seat 35 and a second ear seat 36 are welded on the back of the flat plate 34, and the first ear seat 35 is connected with the end shaft of the mechanical arm 203; the second ear mount 36 is connected to the shaft of the cylinder 41 of the robot arm 203, and the tilt angle of the cover 201 can be adjusted by controlling the cylinder 41.

By controlling the robot arm 203, the position of the cover 201 in several directions, such as the height direction, the left-right direction, and the direction perpendicular to the wall surface to be cleaned, can be adjusted. During adjustment, the cover body 201 is adjusted to make the bottom of the brush board 32 (the bottom of the cover body 201) just touch the wall surface to be cleaned or press the bottom of the brush board 32 to the wall surface to be cleaned for a predetermined length, for example, like sweeping, the bottom of the brush board 32 is pressed to the wall surface to be cleaned for a length of 0-30 mm. The pipe end of the pipe 33 is connected to the input of the dust removal system 18.

In this embodiment, the pipe 33 is connected to the negative pressure fan through a hose.

In this embodiment, the row of brush plates 32 is composed of a rectangular fixing plate and bristles mounted on the fixing plate.

In the present embodiment, the width of the row brush plate 32 is 400-500 mm.

As shown in fig. 5, the tunnel wall cleaning vehicle according to the invention has a schematic structural view of the dry ice blasting assembly in the embodiment shown in fig. 1.

In the embodiment, a plurality of dry ice spray heads 51 are uniformly distributed along the circumference in the dry ice spraying assembly 202, the dry ice spraying area of each dry ice spray head is a sector area 52, and the relative position of adjacent dry ice spray heads 51 is based on the intersection or the predetermined size of the intersection of the outer sides of the sector areas 52.

In order to maximize the contact area between the dry ice blasting assembly 202 and the area to be cleaned, a plurality of dry ice blasting heads 51 in the dry ice blasting assembly 202 are arranged along a circumference with a predetermined diameter, and the relative positions of adjacent dry ice blasting heads 51 are based on the fact that the outer sides of the fan-shaped blasting areas 52 of the adjacent dry ice blasting heads just intersect or intersect with a predetermined size.

In this embodiment, a plurality of windows 341 are provided in the plate 34, and the number of windows 341 is the same as that of the dry ice blasting heads 51 in the dry ice blasting assembly 202.

In this embodiment, 3 windows 341 are provided on the flat plate 34, and when the maximum working distance of the selected dry ice sprayer 51 is smaller than the width of the row brush plate 32, the windows 341 serve as limiting holes of the dry ice sprayer 51; when the maximum working distance of the dry ice blasting head 51 is greater than the width of the row brush plate 32, the window 341 serves as a passage for the blasted dry ice to pass through the flat plate 34.

The plate 34 is also provided with 3 windows 341. When the maximum working distance of the selected dry ice blasting head 51 (the distance from the dry ice outlet of the dry ice blasting head 51 to the maximum distance to which dry ice can be blasted) is smaller than the width of the row of brush plates 32 (in the length direction of each bristle), the window 341 is used as a stopper hole of the dry ice blasting head 51; when the maximum working distance of the dry ice blasting head 51 is greater than the width of the row brush plate 32, the window 341 is used as a passage for the blasted dry ice to pass through the flat plate 34. Obviously, the number of the windows 341 on the plate 34 is set according to the number of the dry ice heads 51 in the dry ice spraying assembly 202, and the number of the dry ice heads 51 in the dry ice spraying assembly 202 is not limited to 3.

Example two:

referring next to fig. 6 and 7, a schematic structural diagram of a tunnel wall cleaning vehicle according to a second embodiment of the invention is shown.

The second embodiment is based on the first embodiment and further comprises two sliding plates 37 which are arranged at the left side and the right side of the cover body 201 and outside the row brush plates 32; an adjustment cylinder 204 is also included, which is connected to the slide plate 37. A guide mechanism is provided between the slide plate 37 and the baffle plate 31 to enable the slide plate 37 to move back and forth along the longitudinal direction of the bristles of the row brush plate 32.

In this embodiment, the baffle 31 has guide grooves 311 on the left and right edges of one surface of the row brush plate 32, rollers 312 are installed in the guide grooves 311, and the sliding plate 37 can move back and forth along the bristle direction of the row brush plate 32 under the action of the adjusting cylinder 204 and the rollers 312, so as to adjust the length of the bristles actually exposed in the housing 201.

The rollers 312 may also be connected to the sliding plates 37, that is, the rollers 312 are connected to the upper and lower edges of each sliding plate 37 shown in fig. 6, and the rollers 312 are sleeved in the guide grooves 311 of the baffle 31.

The upper end and the lower end of the sliding plate 37 do not adopt a roller, but the guide grooves 311 are matched with the size and the shape of the two ends of the sliding plate 37, so that the upper end and the lower end of the sliding plate 37 are nested in the guide grooves 311, lubricating oil is added into the guide grooves 311, and the sliding plate 37 can move along the direction of the guide grooves 311 under the action of the adjusting oil cylinder 204.

Compared with the first embodiment, the tunnel wall cleaning vehicle provided by the second embodiment can further adjust the bristle length of the cover body 201 of the dry ice cleaning working device 20, can use different bristle lengths for electric equipment protruding from the wall surface of the tunnel at different heights, has better cover body sealing performance than the first embodiment, and can further reduce the dust emission rate and the leakage rate of carbon dioxide.

For example, for a subway tunnel to be cleaned, about 2 meters above the surface of a track bed, a row of electric pipelines is arranged along the track direction, and the row of electric pipelines protrudes 100mm from the wall surface of the tunnel; and about 3 meters upwards on the surface of the ballast bed, a row of cable racks are arranged, and the cable racks protrude 400mm from the wall surface of the tunnel. If the device provided by the second embodiment is adopted, when the electric pipeline of about 2 meters above the track bed surface is cleaned, the sliding plates 37 on the left and right sides of the cover body 201 are pushed forward by the adjusting oil cylinder 204 by the calculated distance value, so that the bristles of the brush row plate 32 extend out by about 110mm relative to the sliding plates 37, and the electric pipeline area of about 2 meters above the track bed surface is cleaned in the cover body state; for the cable frame area with the surface of the track bed facing upwards by about 3 meters, the sliding plates 37 on the left side and the right side of the cover body 201 can be moved backwards through the adjusting oil cylinders 204 until the bristles of the row brush plates 32 extend out of the sliding plates 37 by about 410mm, and the cable frame and the electrical equipment with the surface of the track bed facing upwards by about 3 meters are cleaned in the cover body state.

Example three:

finally, referring to fig. 8 and 9, a schematic structural diagram of a tunnel wall cleaning vehicle according to a third embodiment of the invention is shown.

In this embodiment, on the basis of any one of the structures of the tunnel cleaning vehicle provided in the first embodiment and the second embodiment, the tunnel cleaning vehicle may further include: and the air knife 205 is arranged on the back flat plate 34 of the cover body 201, and the air input end of the air knife 205 is connected with the high-pressure air outlet of the air compressor 15 through a pipeline.

The tunnel cleaning vehicle provided in the embodiment has two cleaning modes of dry ice and air knife blowing. Considering that the carbon dioxide emission may be relatively large if dry ice cleaning is adopted in the whole operation process, the dry ice cleaning working device 20 can be controlled to spray dry ice to clean the tunnel wall in a place with relatively serious local dirt, and an air knife can be used to blow and clean other places.

It will be understood by those skilled in the art that the tunnel wall cleaning vehicle of the present invention includes any combination of the parts described in this specification. These combinations are not described in detail herein for the sake of brevity and clarity, but the scope of the invention, which is defined by any combination of the parts constructed in this specification, will become apparent after review of this specification.

Claims (18)

1. A tunnel wall cleaning vehicle comprises a vehicle body (10), wherein the front side and the rear side below the vehicle body (10) are respectively provided with a bogie (12); the top of automobile body (10) is equipped with cab (11), power room (13), fan (14), air compressor machine (15), hydraulic system (16) and electrical system (17), its characterized in that: the cleaning vehicle is also provided with a dust removal system (18) and a dry ice cleaning working device (20); the power room (13) is internally provided with power equipment required by the work of the vehicle and dry ice cleaning equipment (19).

2. The tunnel wall cleaning vehicle of claim 1, wherein: the dry ice cleaning working device (20) comprises a cover body (201), a dry ice spraying assembly (202) and a mechanical arm (203), wherein the end of the mechanical arm (203) is connected with the back of the cover body (201); the dry ice spraying assembly (202) is fixedly connected to the cover body (201).

3. The tunnel wall cleaning vehicle of claim 2, wherein: the input end of the dry ice spraying assembly (202) is connected with the output end of the dry ice cleaning device (19) through a pipeline, the output end of the cover body (201) is connected with the input end of the dust removal system (18) through a pipeline, and the output end of the dust removal system (18) is connected with the fan (14).

4. The tunnel wall cleaning vehicle of claim 1, wherein: the dust removal system (18) comprises a gravity dust remover, a bag-type dust remover and a liquid dust removal chamber from an input port to an output port in sequence, and the liquid dust removal chamber is communicated with the drying chamber.

5. The tunnel wall cleaning vehicle of claim 2, wherein: the cover body (201) comprises a baffle plate (31), a row brush plate (32), a hemispherical tube (33) and a flat plate (34).

6. The tunnel wall cleaning vehicle of claim 5, wherein: the baffle (31) comprises an upper plate and a lower plate which are symmetrically arranged at the upper side and the lower side of the cover body (201).

7. The tunnel wall cleaning vehicle of claim 5, wherein: the row brush plates (32) are fixed on the left and right sides of the upper plate and the lower plate of the baffle plate (31).

8. The tunnel wall cleaning vehicle of claim 5, wherein: the two hemispherical dome tubes (33) are respectively welded on the left side and the right side of the flat plate (34) to form a back plate of the cover body (201).

9. The tunnel wall cleaning vehicle of claim 5, wherein: the back of the flat plate (34) is also welded with a first ear seat (35) and a second ear seat (36), and the first ear seat (35) is connected with the end part shaft of the mechanical arm (203); the second ear seat (36) is connected with the shaft of the oil cylinder (41) on the mechanical arm (203).

10. The tunnel wall cleaning vehicle according to claim 5 or 8, wherein: the pipe (33) is connected with a negative pressure fan through a hose.

11. The tunnel wall cleaning vehicle of claim 5, wherein: the row brush plate (32) consists of a rectangular fixed plate and brush hairs arranged on the fixed plate.

12. The tunnel wall cleaning vehicle according to claim 5 or 11, wherein: the width of the brush arrangement plate (32) is 400-500 mm.

13. The tunnel wall cleaning vehicle of claim 2, wherein: a plurality of dry ice spray heads (51) are uniformly distributed in the dry ice spraying assembly (202) along the circumference, the dry ice spraying area of each dry ice spray head is a fan-shaped area (52), and the relative position of the adjacent dry ice spray heads (51) is based on the preset size of the intersection or the intersection of the outer sides of the fan-shaped areas (52).

14. The tunnel wall cleaning vehicle of claim 5, wherein: a plurality of windows (341) are arranged on the flat plate (34), and the number of the windows (341) is the same as that of the dry ice spray heads (51) in the dry ice spraying assembly (202).

15. The tunnel wall cleaning vehicle of claim 14, wherein: the flat plate (34) is provided with 3 windows (341), and when the maximum working distance of the selected dry ice spray head (51) is smaller than the width of the row brush plate (32), the windows (341) are used as limiting holes of the dry ice spray head (51); when the maximum working distance of the dry ice nozzle (51) is larger than the width of the row brush plate (32), the window (341) serves as a passage for the sprayed dry ice to pass through the flat plate (34).

16. The tunnel wall cleaning vehicle of claim 5, wherein: two sliding plates (37) are arranged on the outer side of the brush row plate (32), each sliding plate (37) is connected with an adjusting oil cylinder (204), and the upper side and the lower side of each sliding plate (37) are connected with the baffle (31) through guide mechanisms.

17. The tunnel wall cleaning vehicle of claim 16, wherein: the guide mechanism comprises a guide groove (311) and a roller (312); guide grooves (311) are formed in the edges of the left side and the right side of one face, opposite to the row brush plate (32), of the baffle plate (31), idler wheels (312) are installed in the guide grooves (311), and the sliding plate (37) moves back and forth along the brush hair direction of the row brush plate (32) under the action of the adjusting oil cylinder (204) and the idler wheels (312).

18. The tunnel wall cleaning vehicle of claim 5, wherein: the cleaning vehicle also comprises an air knife (205) arranged on the back panel (34) of the cover body (201); and the gas input end of the air knife (205) is connected with the high-pressure gas outlet of the air compressor (15) through a pipeline.

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