CN108252259B - Dust collection device of blowing-sucking type railway track dust collection vehicle - Google Patents
Dust collection device of blowing-sucking type railway track dust collection vehicle Download PDFInfo
- Publication number
- CN108252259B CN108252259B CN201611247040.1A CN201611247040A CN108252259B CN 108252259 B CN108252259 B CN 108252259B CN 201611247040 A CN201611247040 A CN 201611247040A CN 108252259 B CN108252259 B CN 108252259B
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- Prior art keywords
- track
- suction
- blowing
- side wall
- garbage
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- 239000000428 dust Substances 0.000 title claims abstract description 50
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 66
- 238000007664 blowing Methods 0.000 claims abstract description 37
- 238000004140 cleaning Methods 0.000 claims abstract description 33
- 238000001914 filtration Methods 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
- E01H8/10—Removing undesirable matter from rails, flange grooves, or the like railway parts, e.g. removing ice from contact rails, removing mud from flange grooves
- E01H8/105—Pneumatically or hydraulically loosening, removing or dislodging undesirable matter, e.g. removing by blowing, flushing, suction; Application of melting liquids; Loosening or removing by means of heat, e.g. cleaning by plasma torches, drying by burners
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/005—Mobile installations, particularly for upkeeping in situ road or railway furniture, for instance road barricades, traffic signs; Mobile installations particularly for upkeeping tunnel walls
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0863—Apparatus loosening or removing the dirt by blowing and subsequently dislodging it at least partially by suction ; Combined suction and blowing nozzles
Abstract
The invention relates to a dust collection device of a blowing-sucking type railway track dust collection vehicle, which comprises: the device is mounted on the railway vehicle, and during operation, the nozzle ejects high-pressure air to blow dirt on a track and a tunnel wall, and the dirt on the track and the tunnel wall is sucked into the garbage settling chamber by the blowing and sucking device, so that garbage on a ballastless track bed and the tunnel wall can be continuously cleaned under the environment of low temperature and water shortage, and the device belongs to the field of cleaning equipment in the environment protection field.
Description
Technical Field
The invention relates to a dust collection device of a blowing-sucking type railway track dust collection vehicle, which is arranged on the railway track dust collection vehicle, wherein high-pressure air generated by an air supply device is sprayed out from a nozzle in the cleaning process, dirt on a track and a tunnel wall is blown up, a fan generates high-flow negative-pressure air to suck the dirt into the track blowing-sucking port device and the side wall blowing-sucking port device, the track blowing-sucking port device and the side wall blowing-sucking port device adopt a blowing-sucking combined structure mode, the high-pressure air is used for blowing up the dirt on a track bed, the dirt is adsorbed through a suction port, the dirt is collected into a rubbish settling cabin through a dust collection pipeline, and the sustainable cleaning of the track and the tunnel wall is realized through dust removal and dust fall of a filtering device, a back blowing device and a rubbish cleaning device; the track blowing-sucking mouth device and the side wall blowing-sucking mouth device can move to the effective distance of the railway track bed and the tunnel wall surface during operation to collect the dirt on the surface, when the device is not in operation, the track blowing-sucking port device and the side wall blowing-sucking port device can be retracted to be within the limit range of the vehicle, so that damage to the track is avoided, and the device belongs to the field of cleaning equipment in the environment protection.
Technical Field
The blowing-sucking type railway track dust-absorbing vehicle is one of railway track maintenance engineering vehicles, is a novel dry-type cleaning vehicle, can be used in low-temperature and water-deficient environments, the garbage on the ballastless track bed and the tunnel wall is cleaned, and whether the structural arrangement of the device is reasonable or not directly influences the cleaning effect.
Technical proposal
The invention relates to a dust collection device of a blowing-sucking type railway track dust collection vehicle, which comprises: the garbage disposal device is characterized by further comprising a rail blowing port device, a side wall blowing port device, a garbage disposal cabin discharging door and a garbage cleaning device, wherein the rail blowing port device consists of a rail left suction port, a rail middle suction port, a rail right suction port, a dirt collecting cover, a nozzle, a guide rod and a guide rod hinged support, and the side wall blowing port device consists of a side wall suction port, a nozzle, a dirt collecting cover and a telescopic mechanism, and the connection mode is as follows: the track blowing-sucking port device is arranged at the bottom of the track car through a guide rod, the side wall blowing-sucking port device is arranged on the side face of the track car through a telescopic mechanism, the track blowing-sucking port device and the side wall blowing-sucking port device are connected with a garbage settling chamber through dust suction pipes, a garbage cleaning device is arranged in the garbage settling chamber, a garbage settling chamber discharging door is arranged on the side face of the garbage settling chamber in the opposite direction of the garbage cleaning device, a vertical garbage settling chamber partition plate is arranged in the middle of the garbage settling chamber, the garbage settling chamber is connected with a filtering device, the filtering device is connected with a back blowing device, the back blowing device is connected with a fan, one end of the air blowing pipe is connected with an air supply device, the other end of the air blowing pipe is arranged in a suction port in a track, a left suction port in the track, a right suction port in the track and a side wall suction port, nozzles in the track, are arranged on the air blowing pipe extending into the suction port in the track, the left suction port in the side wall suction port, the nozzles are arranged on two sides of the side wall suction port, the nozzles are outwards, a dirt collecting cover is arranged on the periphery of the side wall suction port, and a dirt collecting cover is arranged on the periphery of the suction port in the lower part of the track suction port.
In the cleaning operation process, high-pressure air generated by the air supply device is sprayed out from the spray nozzle to blow up dirt on the track and the tunnel wall, the fan generates high-flow negative pressure air to suck the dirt into the suction port in the track, the left suction port in the track, the right suction port in the track and the side wall suction port, the track suction port blowing device and the side wall suction port blowing device adopt a structure mode of combining blowing and sucking, the dirt on the track bed is blown up by using the high-pressure air blowing and sucking, the dirt is adsorbed by the track suction port blowing device and the side wall suction port blowing device, the dirt is collected into the garbage settling cabin through the dust collection pipeline, and the sustainable cleaning of the track and the tunnel wall is realized by the dust removal and dust fall of the filtering device, the back blowing device and the garbage cleaning device.
The track blowing-sucking device can be lowered to the effective distance of the surface of the railway track bed during operation, dirt on the surface is collected, and can be automatically lifted to the limit range of a vehicle during non-operation, so that damage to the track is avoided; the side wall blowing-sucking device can be extended to the effective distance of the wall surface of the railway tunnel during operation to collect dirt on the wall surface of the tunnel, and the track blowing-sucking device can be retracted to the limit of the vehicle during non-operation to avoid damage to the track and external equipment.
The nozzles fixed in the suction port in the track, the left suction port in the track and the right suction port in the track form an included angle of 15-90 degrees with the horizontal plane. The high-pressure air flow sprayed out from the nozzle blows up dirt on the ground and the track to the direction inside the suction port, so that the suction port is convenient to inhale. The nozzle can be in a form of a plurality of nozzles arranged side by side, or can be a slit type, a rectangular single opening or an irregular opening, so that the purpose of jetting proper air pressure is achieved, and the number of the nozzles is at least one. The spray angle of the spray nozzle is a sector with 30 degrees, the installation interval is between 5CM and 20CM, the spray nozzles are arranged in a vertical row, and the spray coverage areas are overlapped to achieve the purpose of strengthening.
The suction port in the track, the left suction port in the track and the right suction port in the track are of an inner concave boot type structure.
The dirt collecting cover material is rubber, plastic, canvas or polyurethane.
The dust collection pipeline consists of a steel pipe and a corrugated pipe.
The air supply device comprises an air compressor, an air storage tank, a dryer and a dryer.
The garbage cleaning device is of a sloping plate pushing type or a spiral auger Long Xieliao type, wherein the sloping plate pushing type pushes the sloping plate to push garbage out of the garbage settling tank by using a hydraulic cylinder, and the spiral auger Long Xieliao type drives the spiral auger to rotate by using a motor to clean the garbage out of the garbage settling tank.
The pneumatic plugboard devices are arranged in the dust collection pipeline, and each pneumatic plugboard device is used for respectively and independently controlling the on-off of air flow in the dust collection pipeline.
Drawings
FIG. 1 shows a blowing-sucking type dust collector for railway track the dust collection device of the vehicle is structurally schematic.
FIG. 2 is a schematic view of a structure of the track blowing-suction port device.
FIG. 3 is a schematic view of the structure of the side wall blowing-suction port device.
FIG. 4 is a schematic view of the structure of the left suction port of the rail, the middle suction port of the rail and the right suction port of the rail.
FIG. 5 is a schematic view of the side wall suction opening.
Fig. 6 is a schematic view of a nozzle arrangement.
Fig. 7 is a schematic view of the structure of the garbage settling tank.
FIG. 8 is a schematic diagram of the back-blowing device and the filtering device.
Detailed Description
According to the drawing, the dust collection device of the blowing-sucking railway track dust collection vehicle mainly comprises a track vehicle 1, a dust settling tank 2, a dust settling tank partition plate 3, a back blowing device 4, a filtering device 5, a fan 6, an air supply device 7, a dust collection pipeline 8, a blowing pipeline 9, a hydraulic pump station 10, a hydraulic cylinder 11, a track blowing-sucking port device 12, a side wall blowing-sucking port device 13, a dust settling tank discharging door 14, a dust cleaning device 15, a track left sucking port 16, a track middle sucking port 17, a track right sucking port 18, a dirt collecting cover 19, a nozzle 20, a guide rod 21, a guide rod hinged support 22, a side wall sucking port 23, a telescopic mechanism 24 and a pneumatic inserting plate device 25, wherein the connection modes are as follows: the rail blowing-sucking mouth device 12 is arranged at the bottom of the rail car 1 through a guide rod 21 and a guide rod hinged support 22, the lifting and the lowering are realized by utilizing a hydraulic cylinder 11, the side wall blowing-sucking mouth device 13 is arranged at the side face of the rail car 1 through a telescopic mechanism 24, the stretching and the retracting are realized by utilizing the hydraulic cylinder 11, the air supply device 7 consists of an air compressor, a dryer and an air storage tank, high-pressure air is supplied to the blowback device 4, the rail blowing-sucking mouth device 12 and the side wall blowing-sucking mouth device 13, one end of the blowing pipeline 9 is connected with the air supply device 7, the other end of the blowing pipeline 9 is arranged in a rail middle sucking mouth 17, a rail left sucking mouth 16, a rail right sucking mouth 18 and a side wall sucking mouth 23, fan-shaped nozzle type nozzles 20 with the spraying angle of 30 DEG are arranged on the blowing pipeline 9 extending into the inside the rail middle sucking mouth 17, the rail left sucking mouth 16, the rail right sucking mouth 18 and the side wall sucking mouth 23, the installation interval is between 5CM and 20CM, the included angle between the high-pressure air sprayed by the nozzles 20 in the suction port 17, the left suction port 16 and the right suction port 18 in the track and the surface of the ballast bed is 15 degrees, the nozzles 20 are arranged in vertical rows, the coverage area is overlapped and sprayed with no dead angle in work, the inside of the ballast bed is sunken according to the characteristics of railway cleaning, so a blowing-sucking structure is selected, in order to improve the dust collection effect, the suction port 17 in the track, the left suction port 16 in the track and the left suction port 18 in the track are of concave boot-shaped structures, the nozzles 20 in the side wall suction port 23 are arranged on two sides of the side wall suction port 23, the nozzles 20 incline outwards and towards the inside direction of the side wall suction port 23 by 5 degrees, the spraying range in work is overlapped, the space area is formed to be completely covered, the periphery of the lower parts of the suction port 17 in the track, the left suction port 16 in the track and the right suction port 18 in the track are provided with the dirt collecting cover 19, the material of the dirt collecting cover 19 is rubber, plastic, canvas or polyurethane for catching dirt and preventing damage to the surface of the track and the surface of the tunnel wall, the clearance between the lower end of the dirt collecting cover 19 and the surface of the track is 20mm during operation, air flow sucks air and dust particles around the middle suction opening 17, the left suction opening 16 and the left suction opening 18 of the track into the middle suction opening 17, the left suction opening 16 and the right suction opening 18 of the track from the clearance at a certain air speed, the dirt collecting cover 19 on the side wall blowing opening device 13 is arranged around the front end of the side wall suction opening 23, the front end of the dirt collecting cover 19 is 30mm away from the clearance in the tunnel during operation, the air flow sucks air and dust particles around the side wall suction opening 23 and the tunnel wall from the clearance into the side wall suction opening 23 at a certain air speed, the side wall blowing opening device 12 and the side wall blowing opening device 13 are connected with the garbage settling chamber 2 through a dust suction pipe 8 consisting of a plurality of steel pipes and corrugated pipes, zxfoom 8 25, 25 8 , so as to be suitable for application under different working conditions, the dust particles are settled and separated in the garbage settling tank 2 by utilizing the action of gravity, a garbage cleaning device 15 is arranged in the garbage settling tank 2, the garbage cleaning device 15 is of a sloping plate pushing type driven by a hydraulic cylinder 11 or a spiral winch Long Xieliao type driven by a motor, wherein the sloping plate pushing type pushes garbage out of the garbage settling tank 2 by utilizing the hydraulic cylinder to push the sloping plate, the spiral winch Long Xieliao drives the spiral screw auger to rotate by utilizing the motor to clean the garbage out of the garbage settling tank 2, a garbage settling tank discharging door 14 opened by a double hydraulic cylinder 11 is arranged on the side surface of the garbage settling tank 2 in the opposite direction of the garbage cleaning device 15, the garbage cleaning device 15 in the garbage settling chamber 2 discharges sucked garbage out of the chamber through the settling chamber discharging door 14, the middle of the garbage settling chamber 2 is vertically provided with a garbage settling chamber partition plate 3 which is not closed up, in order to separate solid garbage with larger volume and fine dust, the fine dust enters the filtering device 5 connected with the garbage settling chamber 2 from the upper part of the garbage settling chamber partition plate 3 along with negative pressure to be filtered, the filtering device 5 is connected with the blowback device 4, the fine dust attached to the filtering device 5 is cleaned in a blowback way by utilizing high-pressure pulse air sprayed by the blowback device 4 arranged on the filtering device 5, the filtering device can have the effect of long-time operation filtering, the phenomenon of blocking caused by excessive dust is avoided, the large solid garbage is blocked by the garbage settling chamber partition plate 3 through the track blowing port device, the fine dust enters the filtering device 5 through a channel on the garbage settling chamber partition plate 3, finally, the large solid blocked by the garbage settling chamber partition plate 3 is circularly discharged through the fan 6 through the garbage settling chamber discharging door 15, and the hydraulic power system is arranged on the track 2, and a hydraulic power pump station is provided for a hydraulic power system 10.
Claims (10)
1. A suction device for a blow-suction railway track dust collection vehicle, the device comprising: the garbage settling tank comprises a rail car (1), a garbage settling tank (2), a garbage settling tank baffle plate (3), a back blowing device (4), a filtering device (5), a fan (6), an air supply device (7), a dust collection pipeline (8) and a blowing pipeline (9), it is characterized in that the device also comprises a track blowing-sucking port device (12), a side wall blowing-sucking port device (13), a garbage sedimentation cabin discharging door (14) and a garbage cleaning device (15), the track blowing-sucking port device (12) consists of a track left sucking port (16), a track middle sucking port (17), a track right sucking port (18), a dirt collecting cover (19), a nozzle (20), a guide rod (21) and a guide rod connecting support (22), and the side wall blowing-sucking port device (13) consists of a side wall sucking port (23), a nozzle (20), a dirt collecting cover (19) and a telescopic mechanism (24), and the connecting mode is as follows: the track blowing-sucking port device (12) is arranged at the bottom of the track car (1) through a guide rod (21) and a guide rod connecting support (22), the side wall blowing-sucking port device (13) is arranged at the side surface of the track car (1) through a telescopic mechanism (24), the track blowing-sucking port device (12) and the side wall blowing-sucking port device (13) are connected with the garbage settling chamber (2) through dust collection pipelines (8), the garbage cleaning device (15) is arranged in the garbage settling chamber (2), the garbage settling chamber discharging door (14) is arranged at the side surface of the garbage settling chamber (2) in the opposite direction of the garbage cleaning device (15), the vertical garbage settling chamber partition plate (3) is arranged in the middle of the garbage settling chamber (2), the garbage settling chamber (2) is connected with the filtering device (5), the filtering device (5) is connected with the back blowing device (4), one end of the back blowing-sucking device (4) is connected with the fan (6), the other end of the blowing pipeline (9) is connected with the air supply device (7), the other end of the blowing pipeline (9) is arranged in the track suction port (17), the track left suction port (16), the track suction port (18) and the side wall (23) are arranged in the track, the track left suction port (18) and the side wall (23) extend into the track, the side wall (23) and the side wall (20) are provided with the jet opening (20) in the track suction port (17), the nozzles (20) in the side wall suction openings (23) are arranged at two sides of the side wall suction openings (23), the nozzles are outwards, the periphery of the side wall suction openings (23) is provided with a dirt collecting cover (19), the periphery of the lower parts of the track middle suction opening (17), the track left suction opening (16) and the track right suction opening (18) is provided with the dirt collecting cover (19), in the cleaning operation process, high-pressure air generated by the air supply device (7) is sprayed out of the nozzles (20) through the air blowing pipeline (9), the fan (6) generates high-flow negative-pressure air to suck air flow into the track suction opening device (12) and the side wall suction opening device (13), and the air flow is collected into the garbage settling cabin (2) through the dust collecting pipeline (8), the dust removal and dust fall device (5) and the back blowing device (4) are adopted, during operation, the middle rail suction port (17), the left rail suction port (16) and the right rail suction port (18) are lowered to the effective distance of the railway track bed surface through the guide rod (21), during non-operation, the middle rail suction port (17), the left rail suction port (16) and the right rail suction port (18) are lifted to the limit range of the railway car (1) through the guide rod (21), the side wall suction port (23) is stretched to the effective distance through the telescopic mechanism (24) during operation, the side wall suction port (23) is in non-operation, the side wall suction opening (23) is retracted into the vehicle limit range by the telescopic mechanism (24).
2. A suction device for a blow-suction railway track cleaning vehicle as claimed in claim 1, wherein: the nozzles (20) fixed in the suction port (17) in the track, the left suction port (16) in the track and the right suction port (18) in the track form an included angle of 15-90 degrees with the horizontal plane.
3. A suction device for a blow-suction railway track cleaning vehicle as claimed in claim 1, wherein: the nozzle (20) is a nozzle type, a slit type or an irregular opening, and the number of the nozzle type, the slit type or the irregular opening is at least one.
4. A suction device for a blow-suction railway track cleaning vehicle as claimed in claim 1, wherein: the spray angle of the spray nozzle (20) is a sector with 30 degrees, the installation interval is between 5CM and 20CM, the nozzles (20) are arranged in vertical rows, and the spraying coverage areas are overlapped.
5. A blowing and sucking device according to claim 1 a dust collection device of a railway track dust collection vehicle, the method is characterized in that: the structures of the middle suction port (17), the left suction port (16) and the right suction port (18) are internal concave boot-shaped structures.
6. A suction device for a blow-suction railway track cleaning vehicle as claimed in claim 1, wherein: the material of the dirt collecting cover (19) is rubber, plastic, canvas or polyurethane.
7. A suction device for a blow-suction railway track cleaning vehicle as claimed in claim 1, wherein: the dust collection pipeline (8) is formed by a steel pipe bellows.
8. A suction device for a blow-suction railway track cleaning vehicle as claimed in claim 1, wherein: the air supply device (7) comprises an air compressor, an air storage tank, a dryer and a dryer.
9. A suction device for a blow-suction railway track cleaning vehicle as claimed in claim 1, wherein: the garbage cleaning device (15) is an inclined plate pushing type or spiral auger discharging type.
10. A suction device for a blow-suction railway track cleaning vehicle as claimed in claim 1, wherein: a pneumatic plugboard device (25) is arranged in the dust collection pipeline (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611247040.1A CN108252259B (en) | 2016-12-29 | 2016-12-29 | Dust collection device of blowing-sucking type railway track dust collection vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611247040.1A CN108252259B (en) | 2016-12-29 | 2016-12-29 | Dust collection device of blowing-sucking type railway track dust collection vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108252259A CN108252259A (en) | 2018-07-06 |
| CN108252259B true CN108252259B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611247040.1A Active CN108252259B (en) | 2016-12-29 | 2016-12-29 | Dust collection device of blowing-sucking type railway track dust collection vehicle |
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| CN (1) | CN108252259B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109680570B (en) * | 2019-01-20 | 2024-04-16 | 江苏奥新科技有限公司 | Integrated intelligent track dust removal dehumidification heating car |
| CN113073599B (en) * | 2021-04-20 | 2022-12-30 | 安徽港泰机械制造集团有限公司 | Urban rail maintenance cleaning device |
| CN114457743A (en) * | 2022-01-24 | 2022-05-10 | 成都新一驱动技术有限责任公司 | Embedded blowback dust absorption cleaning device of subway bed |
| CN114776609B (en) * | 2022-03-15 | 2023-07-04 | 江苏徐工工程机械研究院有限公司 | Automatic air supplementing system of suction vehicle and control method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108252259A (en) | 2018-07-06 |
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