CN112575648A - Asphalt concrete material conveying device and asphalt concrete heating method - Google Patents
Asphalt concrete material conveying device and asphalt concrete heating method Download PDFInfo
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- CN112575648A CN112575648A CN202011425443.7A CN202011425443A CN112575648A CN 112575648 A CN112575648 A CN 112575648A CN 202011425443 A CN202011425443 A CN 202011425443A CN 112575648 A CN112575648 A CN 112575648A
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- 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
- E01C19/02—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 preparing the materials
- E01C19/08—Apparatus for transporting and heating or melting asphalt, bitumen, tar, or the like
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- 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
- E01C19/02—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 preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
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Abstract
The invention discloses an asphalt concrete material conveying device and an asphalt concrete heating method, and belongs to the technical field of asphalt concrete processing. Through setting up drainage mechanism and conveying mechanism, drainage mechanism carries out seamless connection with transport vechicle and conveying mechanism, has practiced thrift artificial transfer cost, and conveying mechanism can carry out intensive mixing with asphalt concrete in the transport vechicle simultaneously, when helping the material transport, has still improved the heating effect of follow-up asphalt concrete material.
Description
Technical Field
The invention belongs to the technical field of asphalt concrete processing, and particularly relates to an asphalt concrete material conveying device and an asphalt concrete heating method.
Background
The asphalt concrete has good cohesiveness, plasticity, waterproofness and corrosion resistance, so that the asphalt concrete is widely applied to construction projects such as traffic, municipal administration and water conservancy. Because the asphalt concrete pavement has good service performance, the asphalt concrete pavement is adopted by most high-grade roads. With the vigorous morning of Chinese traffic construction and the continuous improvement of the performance of asphalt materials, China still builds more asphalt concrete pavements.
In the prior art, a large amount of asphalt materials are needed for building a new asphalt concrete pavement and maintaining the existing pavement. When transporting and heating asphalt concrete materials, the asphalt concrete materials have strong pungent smell, if leakage occurs, the asphalt concrete materials are difficult to clean, and certain influence is caused to the environment.
Disclosure of Invention
In view of the defects in the prior art, the present invention provides an asphalt concrete material conveying device and an asphalt concrete heating method, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an asphalt concrete material conveying device comprises a transport vehicle for conveying asphalt concrete materials, a conveying platform, a connecting block, a mounting plate, a drainage mechanism and a conveying mechanism, wherein the transport vehicle is parked on the conveying platform, the drainage mechanism is arranged on the rear side of the transport vehicle, and the drainage mechanism is used for draining the asphalt concrete materials on the transport vehicle into the conveying mechanism;
conveying mechanism includes driving motor and a transport cylinder, driving motor's output shaft runs through and extends to the inside fixedly connected with of transport cylinder and is located the inside actuating lever of transport cylinder, the fixed surface of actuating lever installs helical coiled passage, the mouth of puting in has been seted up to the upper surface of transport cylinder one end, the discharge gate has been seted up to the lower surface of the transport cylinder other end.
Further optimize this technical scheme, the transport table is provided with the screens piece on the surface for fix a position the parking position of transport vechicle, be provided with the deceleration strip on the upper slope surface of transport table.
This technical scheme is further optimized, drainage mechanism includes linear electric motor, linear electric motor's top fixed mounting has first axis of rotation, the fixed mounting has the installation piece on the surface of first axis of rotation, the last fixed surface of installation piece installs the drainage plate, the equal fixed mounting in both sides of drainage plate upper surface has the fender stream board, the fender stream board carries out seamless connection with the transport case of transport vechicle when the transport vechicle emptys the asphalt concrete material.
Further optimize this technical scheme, the one end setting of connecting block is in the one side of carrying the platform, the other end setting of connecting block is in the one side of mounting panel, the connecting block with carry all to use connecting bolt to fix the setting between platform, the mounting panel.
Further optimize this technical scheme, one side fixed mounting of mounting panel upper surface has the piece of placing, driving motor fixed mounting is on the surface of placing the piece, the middle part fixed mounting of mounting panel upper surface has the mount pad, the last fixed surface of mount pad installs the installation pole, the top fixed mounting of installation pole has the backup pad, the backup pad is used for fixing a transport section of thick bamboo.
Further optimize this technical scheme, the helical passage is divided into three sections and designs, and the interval that is located two sections helical passage of input mouth and discharge gate one side is greater than the interval that is located a section helical passage in the middle part of a conveying section of thick bamboo.
Further optimize this technical scheme, one side of discharge gate is rotated and is connected with the baffle, one side of discharge gate is provided with the second axis of rotation that is located the feed cylinder lower surface, the fixed mounting on the surface of second axis of rotation has the bracing piece, the bracing piece laminating is used for supporting the baffle at the lower surface of baffle.
According to the technical scheme, a material box is arranged on one side of the discharge port, whether the material box is set or not is determined according to the quality requirement of the asphalt concrete, additives are thrown into the material box and added according to the quality requirement of the asphalt concrete, a material spray nozzle is fixedly installed on the surface of the material box, and the direction of the material spray nozzle is aligned to the discharge port.
A heating method of asphalt concrete is based on the asphalt concrete material conveying device for putting, and comprises the following specific steps:
s1, conveying asphalt concrete to the reaction kettle by using an asphalt concrete material conveying device;
s2, heating the asphalt concrete material in a reaction kettle at a temperature not higher than 140 ℃;
and S3, after the heating in the reaction kettle is finished, the storage temperature of the asphalt concrete material is 70-90 ℃.
Further optimizing the technical scheme, in the step S2, the heating mode of the reaction kettle is solar heating, infrared heating or a heating mode of mixing the solar heating and the infrared heating.
Compared with the prior art, the invention provides an asphalt concrete material conveying device and an asphalt concrete heating method, which have the following beneficial effects:
1. this asphalt concrete material conveyor through setting up drainage mechanism and conveying mechanism, and drainage mechanism carries out seamless connection with transport vechicle and conveying mechanism, has practiced thrift artificial transfer cost, has avoided the problem of the material leakage of transfer in-process, and conveying mechanism can carry out the intensive mixing with asphalt concrete in the transport vechicle simultaneously, when helping the material transportation, has still improved the heating effect of follow-up asphalt concrete material.
2. According to the heating method of the asphalt concrete, the heating mode of solar heating, infrared heating or the combination of the solar heating and the infrared heating is adopted, so that the social and economic benefits of asphalt heating can be improved, the heating temperature does not need higher requirements, the waste of heat energy is avoided, and the energy conservation and environmental protection during construction are facilitated.
Drawings
FIG. 1 is a schematic structural diagram of an asphalt concrete material conveying device according to the present invention;
FIG. 2 is a schematic view of a connection structure of a conveying mechanism of an asphalt concrete material conveying device according to the present invention;
FIG. 3 is a schematic view of a connection structure of a drainage mechanism of the asphalt concrete material conveying device according to the present invention;
FIG. 4 is a schematic view of a connection structure of a baffle plate of the asphalt concrete material conveying device according to the present invention;
fig. 5 is a schematic view of a connection structure of a material tank of the asphalt concrete material conveying device according to the present invention.
In the figure: 1. a transport vehicle; 2. a conveying table; 21. a bit block; 22. a speed bump; 3. connecting blocks; 31. a connecting bolt; 4. a drainage mechanism; 41. a linear motor; 42. a first rotating shaft; 43. mounting blocks; 44. a drainage plate; 45. a flow baffle plate; 5. mounting a plate; 6. placing the blocks; 7. a mounting seat; 8. a conveying mechanism; 81. a drive motor; 82. a delivery cartridge; 83. a throwing port; 84. a drive rod; 85. a spiral channel; 86. a discharge port; 87. a baffle plate; 88. a second rotating shaft; 89 supporting the rod; 9. mounting a rod; 10. a support plate; 11. a material box; 12. a material spray head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, an asphalt concrete material conveying device includes a transport vehicle 1 for transporting asphalt concrete materials, a conveying platform 2, a connecting block 3, a mounting plate 5, a drainage mechanism 4 and a conveying mechanism 8, wherein the transport vehicle 1 is parked on the conveying platform 2, the drainage mechanism 4 is arranged at the rear side of the transport vehicle 1, and the drainage mechanism 4 is used for draining the asphalt concrete materials on the transport vehicle 1 to the conveying mechanism 8;
referring to fig. 2, the conveying mechanism 8 includes a driving motor 81 and a conveying cylinder 82, an output shaft of the driving motor 81 penetrates through and extends to the inside of the conveying cylinder 82, a driving rod 84 located inside the conveying cylinder 82 is fixedly connected to the inside of the driving rod 81, a spiral channel 85 is fixedly installed on the surface of the driving rod 84, a feeding opening 83 is formed in the upper surface of one end of the conveying cylinder 82, and a discharging opening 86 is formed in the lower surface of the other end of the conveying cylinder 82.
Specifically, a clamping block 21 is arranged on the surface of the conveying platform 2 and used for positioning the parking position of the transport vehicle 1, and a deceleration strip 22 is arranged on the upper slope surface of the conveying platform 2.
Referring to fig. 3 and 4, specifically, the drainage mechanism 4 includes a linear motor 41, a first rotating shaft 42 is fixedly installed at a top end of the linear motor 41, an installation block 43 is fixedly installed on a surface of the first rotating shaft 42, a drainage plate 44 is fixedly installed on an upper surface of the installation block 43, flow baffles 45 are fixedly installed on both sides of an upper surface of the drainage plate 44, and the flow baffles 45 are in seamless connection with a transport box of the transport vehicle 1 when the transport vehicle 1 pours asphalt concrete materials.
Specifically, one end of the connecting block 3 is arranged on one side of the conveying table 2, the other end of the connecting block 3 is arranged on one side of the mounting plate 5, and the connecting block 3 and the conveying table 2 and the mounting plate 5 are fixedly arranged by using the connecting bolt 31.
Specifically, one side fixed mounting of mounting panel 5 upper surface has places piece 6, driving motor 81 fixed mounting is on placing piece 6's surface, the middle part fixed mounting of mounting panel 5 upper surface has mount pad 7, the last fixed surface of mount pad 7 installs installation pole 9, the top fixed mounting of installation pole 9 has backup pad 10, backup pad 10 is used for fixing transport cylinder 82.
Specifically, the spiral channel 85 is designed to be divided into three sections, and the distance between two sections of spiral channels 85 located on one side of the input port 83 and the discharge port 86 is greater than the distance between one section of spiral channel 85 located in the middle of the conveying cylinder 82.
Specifically, one side of discharge gate 86 is rotated and is connected with baffle 87, one side of discharge gate 86 is provided with the second axis of rotation 88 that is located the lower surface of feed cylinder 82, second axis of rotation 88's fixed mounting has a bracing piece 89 on the surface, the bracing piece 89 laminating is used for supporting baffle 87 at the lower surface of baffle 87.
A heating method of asphalt concrete is based on the asphalt concrete material conveying device for putting, and comprises the following specific steps:
s1, conveying asphalt concrete to the reaction kettle by using an asphalt concrete material conveying device;
s2, heating the asphalt concrete material in a reaction kettle at a temperature not higher than 140 ℃;
and S3, after the heating in the reaction kettle is finished, the storage temperature of the asphalt concrete material is 70-90 ℃.
Specifically, in S2, the heating method of the reaction kettle is selected from solar heating, infrared heating, or a mixture of solar heating and infrared heating.
Example two:
referring to fig. 1, an asphalt concrete material conveying device includes a transport vehicle 1 for transporting asphalt concrete materials, a conveying platform 2, a connecting block 3, a mounting plate 5, a drainage mechanism 4 and a conveying mechanism 8, wherein the transport vehicle 1 is parked on the conveying platform 2, the drainage mechanism 4 is arranged at the rear side of the transport vehicle 1, and the drainage mechanism 4 is used for draining the asphalt concrete materials on the transport vehicle 1 to the conveying mechanism 8;
referring to fig. 2, the conveying mechanism 8 includes a driving motor 81 and a conveying cylinder 82, an output shaft of the driving motor 81 penetrates and extends into the conveying cylinder 82, a driving rod 84 located inside the conveying cylinder 82 is fixedly connected to the output shaft, a spiral channel 85 is fixedly arranged on the surface of the driving rod 84, a throwing opening 83 is arranged on the upper surface of one end of the conveying cylinder 82, a discharge hole 86 is formed in the lower surface of the other end of the conveying cylinder 82, a material box 11 can be further arranged on one side of the discharge hole 86, as shown in fig. 5, the material tank 11 determines whether to perform setting according to the quality requirement of the asphalt concrete, and if necessary, the additive is put in the material tank 11 and is added according to the quality requirement of the asphalt concrete, the surface of the material box 11 is fixedly provided with a material spray head 12, and the direction of the material spray head 12 is aligned with the discharge hole 86.
Specifically, a clamping block 21 is arranged on the surface of the conveying platform 2 and used for positioning the parking position of the transport vehicle 1, and a deceleration strip 22 is arranged on the upper slope surface of the conveying platform 2.
Referring to fig. 3 and 4, specifically, the drainage mechanism 4 includes a linear motor 41, a first rotating shaft 42 is fixedly installed at a top end of the linear motor 41, an installation block 43 is fixedly installed on a surface of the first rotating shaft 42, a drainage plate 44 is fixedly installed on an upper surface of the installation block 43, flow baffles 45 are fixedly installed on both sides of an upper surface of the drainage plate 44, and the flow baffles 45 are in seamless connection with a transport box of the transport vehicle 1 when the transport vehicle 1 pours asphalt concrete materials.
Specifically, one end of the connecting block 3 is arranged on one side of the conveying table 2, the other end of the connecting block 3 is arranged on one side of the mounting plate 5, and the connecting block 3 and the conveying table 2 and the mounting plate 5 are fixedly arranged by using the connecting bolt 31.
Specifically, one side fixed mounting of mounting panel 5 upper surface has places piece 6, driving motor 81 fixed mounting is on placing piece 6's surface, the middle part fixed mounting of mounting panel 5 upper surface has mount pad 7, the last fixed surface of mount pad 7 installs installation pole 9, the top fixed mounting of installation pole 9 has backup pad 10, backup pad 10 is used for fixing transport cylinder 82.
Specifically, the spiral channel 85 is designed to be divided into three sections, and the distance between two sections of spiral channels 85 located on one side of the input port 83 and the discharge port 86 is greater than the distance between one section of spiral channel 85 located in the middle of the conveying cylinder 82.
Specifically, one side of discharge gate 86 is rotated and is connected with baffle 87, one side of discharge gate 86 is provided with the second axis of rotation 88 that is located the lower surface of feed cylinder 82, second axis of rotation 88's fixed mounting has a bracing piece 89 on the surface, the bracing piece 89 laminating is used for supporting baffle 87 at the lower surface of baffle 87.
Specifically, one side of the discharge port 86 is provided with a material tank 11, whether the material tank 11 is set according to the quality requirement of the asphalt concrete is determined, an additive is put into the material tank 11 and added according to the quality requirement of the asphalt concrete, a material nozzle 12 is fixedly installed on the surface of the material tank 11, and the direction of the material nozzle 12 is aligned with the discharge port 86.
A heating method of asphalt concrete is based on the asphalt concrete material conveying device for putting, and comprises the following specific steps:
s1, conveying asphalt concrete to the reaction kettle by using an asphalt concrete material conveying device;
s2, heating the asphalt concrete material in a reaction kettle at a temperature not higher than 140 ℃;
and S3, after the heating in the reaction kettle is finished, the storage temperature of the asphalt concrete material is 70-90 ℃.
Specifically, in S2, the heating method of the reaction kettle is selected from solar heating, infrared heating, or a mixture of solar heating and infrared heating.
The invention has the beneficial effects that:
1. this asphalt concrete material conveyor, through setting up drainage mechanism 4 and conveying mechanism 8, drainage mechanism 4 carries out seamless connection with transport vechicle 1 and conveying mechanism 8, has practiced thrift artificial transfer cost, has avoided the problem of the material leakage of transfer in-process, and conveying mechanism 8 can carry out the intensive mixing with asphalt concrete in transport vechicle 1 simultaneously, when helping the material transportation, has still improved the heating effect of follow-up asphalt concrete material.
2. According to the heating method of the asphalt concrete, the heating mode of solar heating, infrared heating or the combination of the solar heating and the infrared heating is adopted, so that the social and economic benefits of asphalt heating can be improved, the heating temperature does not need higher requirements, the waste of heat energy is avoided, and the energy conservation and environmental protection during construction are facilitated.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The asphalt concrete material conveying device is characterized by comprising a transport vehicle (1) for conveying asphalt concrete materials, a conveying platform (2), a connecting block (3), a mounting plate (5), a drainage mechanism (4) and a conveying mechanism (8), wherein the transport vehicle (1) is parked on the conveying platform (2), the drainage mechanism (4) is arranged on the rear side of the transport vehicle (1), and the drainage mechanism (4) is used for draining the asphalt concrete materials on the transport vehicle (1) to the conveying mechanism (8);
conveying mechanism (8) include driving motor (81) and a transport section of thick bamboo (82), the output shaft of driving motor (81) runs through and extends to inside fixedly connected with of a transport section of thick bamboo (82) and is located inside actuating lever (84) of a transport section of thick bamboo (82), the fixed surface of actuating lever (84) installs spiral channel (85), the upper surface of a transport section of thick bamboo (82) one end has been seted up and has been put in mouth (83), discharge gate (86) have been seted up to the lower surface of a transport section of thick bamboo (82) other end.
2. The asphalt concrete material conveying device according to claim 1, characterized in that a clamping block (21) is arranged on the surface of the conveying platform (2) and used for positioning the parking position of the transport vehicle (1), and a deceleration strip (22) is arranged on the upper slope surface of the conveying platform (2).
3. The asphalt concrete material conveying device according to claim 1, characterized in that the drainage mechanism (4) comprises a linear motor (41), a first rotating shaft (42) is fixedly mounted at the top end of the linear motor (41), a mounting block (43) is fixedly mounted on the surface of the first rotating shaft (42), a drainage plate (44) is fixedly mounted on the upper surface of the mounting block (43), flow baffles (45) are fixedly mounted on both sides of the upper surface of the drainage plate (44), and the flow baffles (45) are seamlessly connected with the transport box of the transport vehicle (1) when the transport vehicle (1) pours the asphalt concrete material.
4. The asphalt concrete material conveying device according to claim 1, wherein one end of the connecting block (3) is arranged at one side of the conveying platform (2), the other end of the connecting block (3) is arranged at one side of the mounting plate (5), and the connecting block (3), the conveying platform (2) and the mounting plate (5) are fixedly arranged by using a connecting bolt (31).
5. The asphalt concrete material conveying device according to claim 1, wherein a placing block (6) is fixedly mounted on one side of the upper surface of the mounting plate (5), the driving motor (81) is fixedly mounted on the surface of the placing block (6), a mounting seat (7) is fixedly mounted in the middle of the upper surface of the mounting plate (5), a mounting rod (9) is fixedly mounted on the upper surface of the mounting seat (7), a supporting plate (10) is fixedly mounted at the top end of the mounting rod (9), and the supporting plate (10) is used for fixing the conveying cylinder (82).
6. The asphalt concrete material conveying device according to claim 1, characterized in that the spiral channel (85) is designed in three sections, and the distance between two sections of spiral channel (85) on one side of the feeding opening (83) and the discharging opening (86) is larger than the distance between two sections of spiral channel (85) in the middle of the conveying cylinder (82).
7. The asphalt concrete material conveying device according to claim 1, characterized in that a baffle (87) is rotatably connected to one side of the discharge port (86), a second rotating shaft (88) located on the lower surface of the conveying cylinder (82) is arranged on one side of the discharge port (86), a supporting rod (89) is fixedly mounted on the surface of the second rotating shaft (88), and the supporting rod (89) is attached to the lower surface of the baffle (87) and used for supporting the baffle (87).
8. The asphalt concrete material conveying device according to claim 1, characterized in that a material tank (11) is arranged on one side of the discharge port (86), whether the material tank (11) is arranged or not is determined according to the quality requirement of the asphalt concrete, an additive is thrown into the material tank (11), the additive is added according to the quality requirement of the asphalt concrete, a material spray nozzle (12) is fixedly arranged on the surface of the material tank (11), and the direction of the material spray nozzle (12) is aligned with the discharge port (86).
9. A heating method of asphalt concrete, which is based on the asphalt concrete material conveying device of claims 1-8 and is put in, and is characterized by comprising the following specific steps:
s1, conveying asphalt concrete to the reaction kettle by using an asphalt concrete material conveying device;
s2, heating the asphalt concrete material in a reaction kettle at a temperature not higher than 140 ℃;
and S3, after the heating in the reaction kettle is finished, the storage temperature of the asphalt concrete material is 70-90 ℃.
10. The method of claim 9, wherein in step S2, the heating method of the reaction kettle is selected from solar heating, infrared heating, or a mixture of solar heating and infrared heating.
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| CN202011425443.7A CN112575648A (en) | 2020-12-08 | 2020-12-08 | Asphalt concrete material conveying device and asphalt concrete heating method |
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| CN202011425443.7A CN112575648A (en) | 2020-12-08 | 2020-12-08 | Asphalt concrete material conveying device and asphalt concrete heating method |
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| CN104099843A (en) * | 2014-07-23 | 2014-10-15 | 中国水利水电第五工程局有限公司 | One-step forming construction method for expressway high-modulus asphalt composite |
| CN204367168U (en) * | 2015-01-05 | 2015-06-03 | 广东文理职业学院 | A kind of concrete mixer |
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| CN207996716U (en) * | 2018-01-11 | 2018-10-23 | 福清市景源矿业有限公司 | A kind of feeding device for crushing machine |
| CN208802604U (en) * | 2018-08-16 | 2019-04-30 | 郑州大予机械设备有限公司 | A kind of bituminous mixing plant asphalt delivery machine |
| CN109489827A (en) * | 2018-12-04 | 2019-03-19 | 江苏集萃道路工程技术与装备研究所有限公司 | A kind of asphalt concrete microwave heating device infrared temperature measurement apparatus and temp measuring method |
| CN210239159U (en) * | 2018-12-12 | 2020-04-03 | 广州建筑园林股份有限公司 | Be applicable to mountain region slope concrete conveying device |
| CN210061543U (en) * | 2018-12-28 | 2020-02-14 | 中建科技绵阳有限公司 | Concrete conveying and distributing equipment for production of assembly line mold table prefabricated part |
| CN110748169A (en) * | 2019-11-21 | 2020-02-04 | 常州工业职业技术学院 | Quick feed mechanism that engineering construction used |
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| CN111455777A (en) * | 2020-04-14 | 2020-07-28 | 重庆义伦公路建设有限公司 | Road milling asphalt waste recycling device |
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Application publication date: 20210330 |