CN114575217B - Flue gas collecting and treating system for asphalt paver - Google Patents
Flue gas collecting and treating system for asphalt paver Download PDFInfo
- Publication number
- CN114575217B CN114575217B CN202210206164.4A CN202210206164A CN114575217B CN 114575217 B CN114575217 B CN 114575217B CN 202210206164 A CN202210206164 A CN 202210206164A CN 114575217 B CN114575217 B CN 114575217B
- Authority
- CN
- China
- Prior art keywords
- curtain
- supporting component
- asphalt
- ear piece
- curtain supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 55
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000003546 flue gas Substances 0.000 title claims abstract description 16
- 239000000779 smoke Substances 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 230000007306 turnover Effects 0.000 claims abstract description 7
- 238000009423 ventilation Methods 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 241001494479 Pecora Species 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 208000023406 head swelling Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/18—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/007—Fume suction nozzles arranged on a closed or semi-closed surface, e.g. on a circular, ring-shaped or rectangular surface adjacent the area where fumes are produced
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
- E01C2301/30—Cabin details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention relates to a flue gas collecting and treating system for an asphalt paver, which comprises a curtain supporting component, wherein the curtain supporting component is used for fixedly installing a flexible curtain, the flexible curtain forms a cavity, and a hopper of the asphalt paver is positioned in the cavity; the transparent window is arranged on the flexible curtain, so that the visual field of a driver of the asphalt paver is not influenced; the curtain supporting component is arranged on the roof of the asphalt paver through the turnover mechanism; the device is fixedly arranged at the rear part of the asphalt spreader, and is communicated with the cavity through a ventilation pipeline and used for collecting and purifying smoke. The technical scheme has simple structure and low manufacturing cost, is suitable for overcoming the defect that no flue gas is collected and treated on the asphalt paver in the prior art, reduces the pollution of the flue gas generated by the high-temperature asphalt mixture to the environment to a certain extent by collecting and purifying the asphalt flue gas, and effectively improves the working environment of constructors.
Description
Technical Field
The invention relates to the technical field of flue gas collection and treatment, in particular to a flue gas collection and treatment system for an asphalt paver.
Background
In the process of municipal engineering asphalt concrete pavement construction, in order to ensure construction quality, the temperature of the asphalt mixture is generally not lower than 150 ℃, the asphalt mixture is discharged into a hopper of a paver by a material conveying vehicle, the asphalt mixture can be subjected to pyrolysis oxidation at such high temperature, a large amount of asphalt smoke is generated when the asphalt mixture enters the hopper of the paver, the environment is polluted, and uncomfortable reactions such as dizziness, head swelling, nausea or cough and the like can be caused to constructors, especially when asphalt is paved under the burning sun.
At present, conventionally used asphalt pavers have no treatment device or technical means for collecting asphalt smoke in the process of receiving and paving.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a flue gas collecting and treating system for an asphalt paver.
The technical scheme of the invention is as follows:
the flue gas collection and treatment system for the asphalt paver comprises a curtain supporting component, wherein the curtain supporting component is used for fixedly installing a flexible curtain, the flexible curtain forms a cavity, and a hopper of the asphalt paver is positioned in the cavity; the transparent window is arranged on the flexible curtain, so that the visual field of a driver of the asphalt paver is not influenced; the curtain supporting component is arranged on the roof of the asphalt paver through the turnover mechanism; the device is fixedly arranged at the rear part of the asphalt spreader, and is communicated with the cavity through a ventilation pipeline and used for collecting and purifying smoke.
Further, the flexible curtain includes a left curtain, a front curtain, a top curtain, and a right curtain.
Further, the flexible curtain is made of transparent flexible materials.
Further, the curtain supporting component is a U-shaped component, and the U-shaped component comprises a left rod, a front rod and a right rod which are integrally connected; the turnover mechanism comprises a shaft, an ear piece, an electric winch, a limiting bracket and a limiting column, wherein two ends of the shaft are respectively and fixedly connected with the tail ends of a left rod and a right rod of a curtain supporting component, at least 2 bearings with seats are mounted on the shaft in a matched manner, and the bearings with seats are fixed on the roof of the asphalt paver; the ear piece is fixedly connected with the shaft, the ear piece and the curtain supporting component are arranged in an L shape, and when the curtain supporting component is in a horizontal state, the ear piece is in a vertical state; the top of the ear piece is fixedly provided with a sheep eye screw, the first end of the steel wire rope is fixedly connected with the sheep eye screw, and the second end of the steel wire rope is connected with a reel of the electric hoist; the electric winch, the limit bracket and the limit post are fixedly arranged on the roof of the asphalt paver, and the electric winch is used for winding and unwinding the steel wire rope; the limiting support is positioned at the front part of the ear piece, the limiting support is fixedly provided with a collision block, and when the curtain supporting component is in a horizontal state, the ear piece is contacted with the collision block for horizontally limiting the curtain supporting component; the spacing post is located the rear portion of ear, and has cup jointed compression spring on the spacing post, and compression spring's top is higher than the top of spacing post, when propping the curtain component to be vertical state, ear and compression spring contact and extrusion compression spring for prop the vertical spacing of curtain component.
Further, a reinforcing brace is arranged between the left rod and the right rod of the curtain supporting component.
Further, the vent pipe is a high-temperature-resistant hose and is detachably and fixedly connected with the roof of the asphalt paver through a pipe clamp.
The invention has the following beneficial effects: the device has the advantages of simple structure and low manufacturing cost, is suitable for the flue gas collection treatment of the asphalt paver, overcomes the defect that no flue gas collection treatment exists on the asphalt paver in the prior art, reduces the environmental pollution caused by the flue gas generated by the high-temperature asphalt mixture to a certain extent by collecting and purifying the asphalt flue gas, and effectively improves the working environment of constructors.
Drawings
FIG. 1 is a schematic perspective view I of an embodiment of the present invention;
FIG. 2 is a schematic perspective view II of an embodiment of the present invention;
FIG. 3 is a schematic right-hand view of an embodiment of the present invention;
FIG. 4 is a schematic right side view of an embodiment of the present invention (with the flexible curtain removed);
FIG. 5 is a schematic left side view of an embodiment of the present invention (with the flexible curtain removed);
FIG. 6 is a schematic perspective view of embodiment state A of the invention (with the flexible curtain removed);
FIG. 7 is a schematic perspective view of embodiment of the invention in state B (with the flexible curtain removed);
FIG. 8 is an enlarged partial schematic view of section I of FIG. 6;
FIG. 9 is an enlarged fragmentary schematic view of portion II of FIG. 7;
In the figure: 1-flexible curtain, 101-left curtain, 102-front curtain, 103-top curtain, 104-right curtain; the device comprises a 2-curtain supporting component, a 3-mounting bracket, a 4-smoke pumping device, a 5-ventilation pipeline, a 6-bearing with a seat, a 7-pipe clamp, an 8-limiting bracket, a 9-collision block, a 10-lug piece, an 11-reinforcing support, a 12-limiting column, a 13-sheep eye screw, a 14-compression spring, a 15-wire rope, a 16-shaft, a 17-electric winch and a 99-roof.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
Examples
The flue gas collecting and treating system for the asphalt paver comprises a curtain supporting component 2, wherein the curtain supporting component 2 is used for fixedly installing a flexible curtain 1, the flexible curtain 1 comprises a left curtain 101, a front curtain 102, a top curtain 103 and a right curtain 104, the flexible curtain 1 encloses a cavity, and a hopper of the asphalt paver is positioned in the cavity; in order not to influence the visual field of the driver of the asphalt spreader, a person skilled in the art can set a transparent window on the flexible curtain 1, in this embodiment, the material of the flexible curtain 1 is selected to be a transparent flexible material, so that no additional window is needed; the curtain supporting component 2 is arranged on the roof 99 of the asphalt paver through a turnover mechanism; the device also comprises a smoke pumping device 4, the smoke pumping device 4 is fixedly arranged at the rear part of the asphalt paver through a mounting bracket 3, the smoke pumping device 4 is communicated with the cavity through a vent pipe 5, the vent pipe 5 is a high-temperature-resistant hose, the vent pipe 5 is detachably and fixedly connected with the roof 99 of the asphalt paver through a pipe clamp 7, and the vent pipe 5 can be detached and replaced according to actual use conditions. ; the smoke pumping device 4 is used for collecting and purifying smoke, the smoke pumping device 4 is an existing product, the EMB double-motor technology is adopted for rapidly pumping and exhausting the collected smoke, the noise can be reduced to 28 dB, the rated power is 90W, the air quantity reaches 24m 3/min, and the smoke pumping device is stable, silent, energy-saving and power-saving. The smoke of the pump exhaust is discharged after passing through a high-pressure ionization area, static collection and multiple activated carbon purification and filtration. An asphalt oil collecting device (not shown) is arranged to discharge and recycle the accumulated asphalt oil. The power supply of the smoke pumping device 4 adopts a 24V power supply of the paver, and is converted into a 220V output power supply after passing through an inverter, so as to supply power for the smoke pumping device 4.
The curtain supporting component 2 is a U-shaped component, the U-shaped component comprises a left rod, a front rod and a right rod which are integrally connected, and a reinforcing support 11 is arranged between the left rod and the right rod of the curtain supporting component 2.
The turnover mechanism comprises a shaft 16, an ear piece 10, an electric hoist 17, a limit bracket 8 and a limit post 12, wherein two ends of the shaft 16 are respectively and fixedly connected with the tail ends of a left rod and a right rod of the curtain supporting component 2, at least 2 bearings 6 with seats are mounted on the shaft 16 in a matched manner, and the bearings 6 with seats are fixed on a roof 99 of the asphalt paver; the ear piece 10 is fixedly connected with the shaft 16, the ear piece 10 and the curtain supporting component 2 are arranged in an L shape, and when the curtain supporting component 2 is in a horizontal state, the ear piece 10 is in a vertical state; the top of the ear piece 10 is fixedly provided with a sheep eye screw 13, a first end of a steel wire rope 15 is fixedly connected with the sheep eye screw 13, and a second end of the steel wire rope 15 is connected with a reel of an electric hoist 17; the electric winch 17, the limit bracket 8 and the limit post 12 are fixedly arranged on the roof 99 of the asphalt paver, and the electric winch 17 is used for winding and unwinding the steel wire rope 15; the limiting bracket 8 is positioned at the front part of the ear piece 10, the limiting bracket 8 is fixedly provided with a collision block 9, and when the curtain supporting component 2 is in a horizontal state, the ear piece 10 is contacted with the collision block 9 for horizontally limiting the curtain supporting component 2; the spacing post 12 is located the rear portion of ear piece 10, and cup joints compression spring 14 on the spacing post 12, and compression spring 14's top is higher than spacing post 12's top, and when propping curtain component 2 to be vertical state, ear piece 10 and compression spring 14 contact and compress compression spring 14 for prop curtain component 2's vertical spacing.
Use of the present embodiment:
(1) When the asphalt spreader needs to be discharged into a hopper of the asphalt spreader, the electric winch 17 is enabled to act, the steel wire rope 15 is wound, and the curtain supporting member 2 is slowly rotated to be in a vertical state from a horizontal state under the pulling of the steel wire rope 15; the flexible curtain 1 moves to the rear of the asphalt spreader hopper along with the curtain supporting member 2, so that the dump truck is not prevented from unloading into the asphalt spreader hopper, and at the moment, the compression spring 14 is in a compressed state.
(2) When the discharging is finished in the hopper of the asphalt paver, the electric winch 17 is enabled to act, the steel wire rope 15 is gradually released, the compression spring 14 rebounds to push the curtain supporting member 2, the curtain supporting member 2 naturally rotates downwards under the common weight of the curtain supporting member and the flexible curtain 1, when the ear piece 10 touches the collision block 9, the curtain supporting member 2 is in a horizontal state, and the smoke pumping device 4 pumps smoke in a cavity surrounded by the flexible curtain 1 through the ventilation pipeline 5.
In the description of the present invention, words such as "inner", "outer", "upper", "lower", "front", "rear", and the like, indicate an orientation or a positional relationship, and are merely for convenience of describing the present invention, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The above description is only one embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and it should be noted that, for those skilled in the art, modifications and variations can be made without departing from the spirit of the present invention.
Claims (1)
1. A flue gas collection processing system for asphalt paving machine, characterized by: the asphalt spreader comprises a curtain supporting component (2), wherein the curtain supporting component (2) is used for fixedly installing a flexible curtain (1), the flexible curtain (1) forms a cavity, and a hopper of the asphalt spreader is positioned in the cavity; the curtain supporting component (2) is arranged on the roof (99) of the asphalt paver through the turnover mechanism; the device also comprises a smoke pumping device (4), wherein the smoke pumping device (4) is fixedly arranged at the rear part of the asphalt spreader, the smoke pumping device (4) is communicated with the cavity through a ventilation pipeline (5), and the smoke pumping device (4) is used for collecting and purifying smoke;
the flexible curtain (1) comprises a left curtain (101), a front curtain (102), a top curtain (103) and a right curtain (104);
the flexible curtain (1) is made of transparent flexible materials;
The curtain supporting component (2) is a U-shaped component, and the U-shaped component comprises a left rod, a front rod and a right rod which are integrally connected; the turnover mechanism comprises a shaft (16), an ear piece (10), an electric winch (17), a limiting bracket (8) and a limiting column (12), wherein two ends of the shaft (16) are fixedly connected with the tail ends of a left rod and a right rod of a curtain supporting component (2) respectively, at least 2 bearings (6) with seats are mounted on the shaft (16) in a matched mode, and the bearings (6) with seats are fixed on a roof (99) of the asphalt paver; the ear piece (10) is fixedly connected with the shaft (16), the ear piece (10) and the curtain supporting component (2) are arranged in an L shape, and when the curtain supporting component (2) is in a horizontal state, the ear piece (10) is in a vertical state; the top of the ear piece (10) is fixedly provided with a sheep eye screw (13), a first end of the steel wire rope (15) is fixedly connected with the sheep eye screw (13), and a second end of the steel wire rope (15) is connected with a reel of the electric hoist (17); the electric winch (17), the limit bracket (8) and the limit post (12) are fixedly arranged on the roof (99) of the asphalt spreader, and the electric winch (17) is used for winding and unwinding the steel wire rope (15); the limiting support (8) is positioned at the front part of the ear piece (10), the limiting support (8) is fixedly provided with the collision block (9), and when the curtain supporting component (2) is in a horizontal state, the ear piece (10) is contacted with the collision block (9) for horizontally limiting the curtain supporting component (2); the limiting column (12) is positioned at the rear part of the ear piece (10), the limiting column (12) is sleeved with the compression spring (14), the top of the compression spring (14) is higher than the top of the limiting column (12), and when the curtain supporting component (2) is in a vertical state, the ear piece (10) is in contact with the compression spring (14) and presses the compression spring (14) for vertical limiting of the curtain supporting component (2);
a reinforcing brace (11) is arranged between the left rod and the right rod of the curtain supporting component (2);
the ventilation pipeline (5) is a high-temperature-resistant hose, and the ventilation pipeline (5) is detachably and fixedly connected with the roof (99) of the asphalt paver through a pipe clamp (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210206164.4A CN114575217B (en) | 2022-03-04 | 2022-03-04 | Flue gas collecting and treating system for asphalt paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210206164.4A CN114575217B (en) | 2022-03-04 | 2022-03-04 | Flue gas collecting and treating system for asphalt paver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114575217A CN114575217A (en) | 2022-06-03 |
| CN114575217B true CN114575217B (en) | 2024-04-16 |
Family
ID=81775948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210206164.4A Active CN114575217B (en) | 2022-03-04 | 2022-03-04 | Flue gas collecting and treating system for asphalt paver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114575217B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63150549A (en) * | 1986-12-12 | 1988-06-23 | Kawasaki Steel Corp | Method of controlling operation of dust collecting device |
| US6152649A (en) * | 1998-08-27 | 2000-11-28 | Blaw-Know Construction Equipment Corp. | Fumes collection for an auger-type distributing device on an asphalt paver |
| JP2014012933A (en) * | 2012-07-03 | 2014-01-23 | Sumitomo (Shi) Construction Machinery Co Ltd | Asphalt paving machine |
| DE102015017154A1 (en) * | 2015-08-26 | 2017-03-02 | Benninghoven GmbH & Co. KG Mülheim | Extraction hood for extracting gas and plant for heating material for the production of asphalt comprising such a suction hood |
| JP2017166197A (en) * | 2016-03-15 | 2017-09-21 | 住友建機株式会社 | Asphalt finisher |
| EP3276081A1 (en) * | 2016-07-29 | 2018-01-31 | Caterpillar Paving Products Inc. | Road paver with asphalt fume risk reduction system |
| CN212264952U (en) * | 2020-05-28 | 2021-01-01 | 郑州启风环保科技有限公司 | Turnover type welding smoke dust gas collecting device |
| CN215629170U (en) * | 2021-08-13 | 2022-01-25 | 张锐雄 | Asphalt paver for road and bridge construction |
| CN217104595U (en) * | 2022-03-04 | 2022-08-02 | 济南城建集团有限公司 | Flue gas collecting and processing system for asphalt paver |
-
2022
- 2022-03-04 CN CN202210206164.4A patent/CN114575217B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63150549A (en) * | 1986-12-12 | 1988-06-23 | Kawasaki Steel Corp | Method of controlling operation of dust collecting device |
| US6152649A (en) * | 1998-08-27 | 2000-11-28 | Blaw-Know Construction Equipment Corp. | Fumes collection for an auger-type distributing device on an asphalt paver |
| JP2014012933A (en) * | 2012-07-03 | 2014-01-23 | Sumitomo (Shi) Construction Machinery Co Ltd | Asphalt paving machine |
| DE102015017154A1 (en) * | 2015-08-26 | 2017-03-02 | Benninghoven GmbH & Co. KG Mülheim | Extraction hood for extracting gas and plant for heating material for the production of asphalt comprising such a suction hood |
| JP2017166197A (en) * | 2016-03-15 | 2017-09-21 | 住友建機株式会社 | Asphalt finisher |
| EP3276081A1 (en) * | 2016-07-29 | 2018-01-31 | Caterpillar Paving Products Inc. | Road paver with asphalt fume risk reduction system |
| CN212264952U (en) * | 2020-05-28 | 2021-01-01 | 郑州启风环保科技有限公司 | Turnover type welding smoke dust gas collecting device |
| CN215629170U (en) * | 2021-08-13 | 2022-01-25 | 张锐雄 | Asphalt paver for road and bridge construction |
| CN217104595U (en) * | 2022-03-04 | 2022-08-02 | 济南城建集团有限公司 | Flue gas collecting and processing system for asphalt paver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114575217A (en) | 2022-06-03 |
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