CN114438847A - Foamed asphalt foaming cavity - Google Patents
Foamed asphalt foaming cavity Download PDFInfo
- Publication number
- CN114438847A CN114438847A CN202210251913.5A CN202210251913A CN114438847A CN 114438847 A CN114438847 A CN 114438847A CN 202210251913 A CN202210251913 A CN 202210251913A CN 114438847 A CN114438847 A CN 114438847A
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- Prior art keywords
- foaming
- asphalt
- foamed
- port
- medium
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- 239000010426 asphalt Substances 0.000 title claims abstract description 197
- 238000005187 foaming Methods 0.000 title claims abstract description 189
- 239000006260 foam Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- E01C19/02—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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The application relates to the technical field of asphalt foaming, in particular to a foamed asphalt foaming cavity which comprises a foaming head, wherein a foaming cavity body is arranged inside the foaming head, a hot asphalt port, a foamed asphalt port and at least one foaming medium port which are communicated with the foaming cavity body are arranged outside the foaming head, hot asphalt in the hot asphalt port can be sprayed downwards, foaming media in the foaming medium port can be sprayed downwards in an inclined mode, the hot asphalt sprayed by the hot asphalt port can collide with the foaming medium sprayed by the foaming medium port to form foamed asphalt, the foamed asphalt can be impacted downwards to the bottom of the foaming cavity body, and the foamed asphalt at the bottom of the foaming cavity body can be sprayed out of the foaming cavity body through the foamed asphalt port; the foam asphalt is arranged in a staggered manner with the impact part and the foam asphalt opening at the bottom of the foaming cavity body, the foam asphalt opening is positioned at the bottom of the foaming cavity body, and the bottom of the foaming cavity body is a curved surface for splashing of the foam asphalt all around. This application can improve the quality of foam asphalt.
Description
Technical Field
The application relates to the technical field of asphalt foaming, in particular to a foamed asphalt foaming cavity.
Background
The foamed asphalt is also called as expanded asphalt, and is an asphalt-gas system made up by injecting foaming medium of water and pressure gas into hot asphalt, after the water is met with high-temp. asphalt, it can be quickly evaporated, and in the hot asphalt several bubbles (air or water vapour) with different diameters can be formed, so that the volume of the hot asphalt can be quickly expanded. Through the foaming process, the surface area of the asphalt can be rapidly increased, the volume can be increased by 10-15 times, and the free energy of the surface of the asphalt is also greatly increased, so that when the foamed asphalt is mixed with the ore material, the asphalt can be rapidly and uniformly diffused onto the surface of the ore material under the action of the free energy to form an asphalt film, and the combination between the asphalt and the ore material is more compact and firmer.
With the scale expansion of roads, especially high-grade roads, and the arrival of large and medium maintenance stages in China, the work of maintaining the road surface is increasingly frequent. The cold regeneration technology of foam asphalt is adopted to maintain the road surface, so that the construction time can be saved, the influence on traffic is reduced, the waste asphalt on the road surface can be effectively utilized, the asphalt raw material can be saved on the one hand, and the problems of accumulation of the waste material and environmental pollution can be solved on the other hand.
However, the application of the cold recycling technology of foamed asphalt requires high quality foamed asphalt meeting the construction requirements, and the current foamed asphalt is only to mix foaming media such as water and pressurized gas with hot asphalt simply, so that the quality of the foamed asphalt produced by the method is low, and thus improvement is needed.
Disclosure of Invention
In order to improve the quality of foamed asphalt, this application provides a foamed asphalt foaming chamber.
The application provides a foam asphalt foaming chamber adopts following technical scheme: a foamed asphalt foaming cavity comprises a foaming head, a foaming cavity body is arranged inside the foaming head, a hot asphalt port, a foamed asphalt port and at least one foaming medium port which are communicated with the foaming cavity body are arranged outside the foaming head, hot asphalt in the hot asphalt port can be sprayed downwards, foaming media in the foaming medium port can be sprayed downwards in an inclined mode, hot asphalt sprayed from the hot asphalt port can collide with foaming media sprayed from the foaming medium port to form foamed asphalt, the foamed asphalt can be impacted downwards to the bottom of the foaming cavity body, and the foamed asphalt at the bottom of the foaming cavity body can be sprayed out of the foaming cavity body through the foamed asphalt port; the foam asphalt is arranged in a staggered manner with the impact part and the foam asphalt opening at the bottom of the foaming cavity body, the foam asphalt opening is positioned at the bottom of the foaming cavity body, and the bottom of the foaming cavity body is a curved surface for splashing of the foam asphalt all around.
Optionally, two foaming medium ports are arranged on the foaming head and are respectively arranged on two sides of the foaming head.
Alternatively, the foaming medium sprayed from the two foaming medium ports can collide with the hot asphalt sprayed from the hot asphalt port at the same position.
Optionally, the bottom of the foaming cavity body is arranged in a spherical manner.
Alternatively, the foamed asphalt can be vertically impacted down to the center of the bottom of the foaming chamber body.
Optionally, the foamed asphalt port is arranged obliquely downwards.
Optionally, the foaming head includes an upper cavity and a lower cavity connected to each other, the interior of the upper cavity and the interior of the lower cavity jointly enclose a foaming cavity body, the hot asphalt port and the foaming medium port are both disposed on the upper cavity, and the foamed asphalt port is disposed on the lower cavity.
Optionally, the lower cavity is provided with a groove which is annularly arranged, and the upper cavity is provided with a sealing ring which is embedded in the groove; or the upper cavity body is provided with a groove which is arranged in an annular shape, and the lower cavity body is provided with a sealing ring which is embedded in the groove.
To sum up, the application comprises the following beneficial technical effects:
1. the hot asphalt in the hot asphalt port can be sprayed downwards, the foaming medium in the foaming medium port can be sprayed downwards in an inclined mode, the hot asphalt sprayed from the hot asphalt port can collide with the foaming medium sprayed from the foaming medium port to form foamed asphalt, the foamed asphalt can impact the bottom of the foaming cavity body downwards, and the foamed asphalt at the bottom of the foaming cavity body can be sprayed out of the foaming cavity body through the foamed asphalt port;
2. the foaming media sprayed by the two foaming media ports collide with the hot asphalt sprayed by the hot asphalt port at the same position, and the foaming media directly impact into the hot asphalt and exchange heat with the hot asphalt, so that a large amount of bubbles are formed in the hot asphalt, and the foamed asphalt is generated;
3. the foaming medium sprayed by the foaming medium ports has a horizontal component velocity and a vertical component velocity, the horizontal component velocities of the foaming medium sprayed by the two foaming medium ports are offset, the vertical component velocities of the foaming medium sprayed by the two foaming medium ports are combined with the vertical component velocity of the hot asphalt sprayed by the hot asphalt port, so that the foamed asphalt formed by the foaming medium and the hot asphalt can be accelerated to impact the bottom of the foaming cavity body downwards, the foaming medium can enter the hot asphalt more deeply and can be diffused more intensely in the hot asphalt, the hot asphalt is expanded more fully, and the foaming effect is improved;
4. the foamed asphalt formed by the foaming medium and the hot asphalt can not be directly discharged out of the foaming cavity body through the foamed asphalt port, so that the contact time of the foaming medium and the hot asphalt is prolonged, and the foaming effect is improved;
5. when the foamed asphalt formed by the foamed medium and the hot asphalt is collided to the bottom of the foaming cavity body, the foamed asphalt splashes to the cavity wall of the bottom of the foaming cavity body, and the foamed asphalt collides with the cavity wall of the bottom of the foaming cavity body again to further promote the mixing of the foamed medium and the hot asphalt, so that the foaming effect is further improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure in the embodiment of the present application;
fig. 2 is a schematic sectional structure view of the whole in the embodiment of the present application.
Reference numerals: 1. a foaming head; 11. a foaming chamber body; 12. a hot asphalt port; 13. a foamed asphalt port; 14. a foam medium port; 15. an upper cavity; 151. a seal ring; 152. a threaded hole; 153. a mounting seat; 16. a lower cavity; 161. and (4) a groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a foamed asphalt foaming cavity. As shown in fig. 1 and 2, a foamed asphalt foaming chamber includes a foaming head 1, a foaming chamber body 11 is arranged inside the foaming head 1, a hot asphalt port 12, a foamed asphalt port 13 and at least one foamed medium port 14 which are communicated with the foaming chamber body 11 are arranged outside the foaming head 1, the hot asphalt in the hot asphalt port 12 can be sprayed downwards, the foamed medium in the foamed medium port 14 can be sprayed downwards in an inclined manner, the hot asphalt sprayed from the hot asphalt port 12 can collide with the foamed medium sprayed from the foamed medium port 14 to form foamed asphalt, the foamed asphalt can be impacted downwards to the bottom of the foaming chamber body 11, and the foamed asphalt at the bottom of the foaming chamber body 11 can be sprayed out of the foaming chamber body 11 through the foamed asphalt port 13.
The foaming medium ports 14 are arranged on the foaming head 1 and are respectively arranged on two sides of the foaming head 1, the two foaming medium ports 14 are preferably symmetrically arranged, the distances between the two foaming medium ports 14 and the hot asphalt port 12 are equal, and the hot asphalt port 12 vertically sprays hot asphalt downwards, so that the foaming medium sprayed by the two foaming medium ports 14 can collide with the hot asphalt sprayed by the hot asphalt port 12 at the same time, namely the foaming medium sprayed by the two foaming medium ports 14 collides with the hot asphalt sprayed by the hot asphalt port 12 at the same position, at the moment, the foaming medium directly impacts the hot asphalt and exchanges heat with the hot asphalt, a large amount of bubbles are formed inside the hot asphalt, and the foamed asphalt is generated.
It is worth to be noted that the foaming medium injected from the foaming medium port 14 has a horizontal component velocity and a vertical component velocity, the horizontal component velocities of the foaming medium injected from the two foaming medium ports 14 are offset, and the vertical component velocities of the foaming medium injected from the two foaming medium ports 14 and the vertical component velocity of the hot asphalt injected from the hot asphalt port 12 are combined, so that the foamed asphalt formed by the foaming medium and the hot asphalt can be accelerated to impact the bottom of the foaming chamber body 11, the foaming medium can enter the inside of the hot asphalt more deeply and can be diffused more intensely in the inside of the hot asphalt, the hot asphalt is expanded more sufficiently, and the foaming effect is improved.
The foam asphalt is staggered with the impact part of the bottom of the foaming cavity body 11 and the foam asphalt port 13, and the foam asphalt port 13 is positioned at the bottom of the foaming cavity body 11 and is arranged obliquely downwards, so that the foam asphalt formed by the foam medium and the hot asphalt can not be directly discharged out of the foaming cavity body 11 through the foam asphalt port 13, the contact time of the foam medium and the hot asphalt is prolonged, and the foaming effect is improved.
The bottom of foaming chamber body 11 is the curved surface setting that supplies foamed asphalt to splash everywhere, and the bottom of preferred foaming chamber body 11 is the sphere setting, and foamed asphalt can vertically impact the center department to foaming chamber body 11 bottom downwards. When the foamed asphalt formed by the foaming medium and the hot asphalt collides with the bottom of the foaming cavity body 11, the foamed asphalt splashes to the cavity wall of the bottom of the foaming cavity body 11, and the foamed asphalt collides with the cavity wall of the bottom of the foaming cavity body 11 again to further promote the mixing of the foaming medium and the hot asphalt, so that the foaming effect is further improved.
The foaming head 1 comprises an upper cavity 15 and a lower cavity 16 which are connected with each other, the interior of the upper cavity 15 and the interior of the lower cavity 16 jointly enclose a foaming cavity body 11, a hot asphalt port 12 and a foaming medium port 14 are arranged on the upper cavity 15, a foamed asphalt port 13 is arranged on the lower cavity 16, and the upper cavity 15 and the lower cavity 16 are connected together through overlaying welding, so that the assembly of the foaming head 1 is facilitated.
The lower cavity 16 is provided with a groove 161 which is annularly arranged, and the upper cavity 15 is provided with a sealing ring 151 which is embedded in the groove 161; or the upper cavity 15 is provided with a groove 161 which is arranged in a ring shape, and the lower cavity 16 is provided with a sealing ring 151 which is embedded in the groove 161. The matching of the groove 161 and the sealing ring 151 improves the sealing effect between the lower cavity 16 and the upper cavity 15, so that the foamed asphalt in the foaming cavity body 11 is not easy to overflow from between the upper cavity 15 and the lower cavity 16.
It is worth mentioning that the joint of the upper cavity 15 and the lower cavity 16 is provided with a chamfer, so that burrs at the corners of the upper cavity 15 and the lower cavity 16 are effectively removed.
A threaded hole 152 which is vertically arranged is formed in the center of the upper end of the upper cavity 15, and the threaded hole 152 is communicated with the foaming cavity body 11 so as to be used for installing a hot asphalt spray head; two mounting seats 153 are symmetrically arranged on the upper side of the upper cavity 15, and the mounting seats 153 correspond to the foaming medium ports 14 one by one so as to mount the foaming medium spray head.
The implementation principle of a foam asphalt foaming chamber of the embodiment of the application is as follows: the hot asphalt in the hot asphalt port 12 can be vertically sprayed downwards, the foaming media in the two foaming media ports 14 can be obliquely sprayed downwards, the foaming media sprayed from the two foaming media ports 14 collide with the hot asphalt sprayed from the hot asphalt port 12 at the same position, and the foaming media directly impact the inside of the hot asphalt and exchange heat with the hot asphalt, so that a large amount of bubbles are formed in the hot asphalt, and the foamed asphalt is generated.
The foaming medium sprayed from the foaming medium port 14 has a horizontal component velocity and a vertical component velocity, the horizontal component velocities of the foaming medium sprayed from the two foaming medium ports 14 are offset, the vertical component velocities of the foaming medium sprayed from the two foaming medium ports 14 are combined with the vertical component velocity of the hot asphalt sprayed from the hot asphalt port 12, so that the foamed asphalt formed by the foaming medium and the hot asphalt can be accelerated to impact the bottom of the foaming cavity body 11, the foaming medium can enter the hot asphalt more deeply and can be diffused more intensely in the hot asphalt, the hot asphalt is expanded more sufficiently, and the foaming effect is improved.
When the foamed asphalt formed by the foaming medium and the hot asphalt collides with the bottom of the foaming cavity body 11, the foamed asphalt splashes to the cavity wall at the bottom of the foaming cavity body 11, and the foamed asphalt collides with the cavity wall at the bottom of the foaming cavity body 11 again to further promote the mixing of the foaming medium and the hot asphalt, so that the foaming effect is further improved; and then the foamed asphalt at the bottom of the foaming cavity body 11 is sprayed out of the foaming cavity body 11 through the foamed asphalt port 13, so that the discharge of the foamed asphalt is realized.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A foamed asphalt foaming chamber, characterized in that: the foaming device comprises a foaming head (1), wherein a foaming cavity body (11) is arranged inside the foaming head (1), a hot asphalt port (12) communicated with the foaming cavity body (11), a foamed asphalt port (13) and at least one foamed medium port (14) are arranged outside the foaming head (1), hot asphalt in the hot asphalt port (12) can be sprayed downwards, foamed medium in the foamed medium port (14) can be sprayed downwards in an inclined manner, the hot asphalt sprayed by the hot asphalt port (12) can collide with the foamed medium sprayed by the foamed medium port (14) to form foamed asphalt, the foamed asphalt can be impacted downwards to the bottom of the foaming cavity body (11), and the foamed asphalt at the bottom of the foaming cavity body (11) can be sprayed out of the foaming cavity body (11) through the foamed asphalt port (13); the foam asphalt is arranged in a staggered mode with an impact position at the bottom of the foaming cavity body (11) and the foam asphalt opening (13), the foam asphalt opening (13) is located at the bottom of the foaming cavity body (11), and the bottom of the foaming cavity body (11) is arranged in a curved surface mode for splashing of the foam asphalt.
2. The foamed asphalt foaming chamber according to claim 1, wherein: the foaming medium ports (14) are arranged on the foaming head (1) in two and are respectively arranged on two sides of the foaming head (1).
3. The foamed asphalt foaming chamber according to claim 2, wherein: the foaming medium sprayed by the two foaming medium ports (14) can collide with the hot asphalt sprayed by the hot asphalt port (12) at the same position.
4. The foamed asphalt foaming chamber according to claim 3, wherein: the bottom of the foaming cavity body (11) is arranged in a spherical manner.
5. The foamed asphalt foaming chamber according to claim 4, wherein: the foamed asphalt can vertically and downwards impact to the center of the bottom of the foaming cavity body (11).
6. The foamed asphalt foaming chamber according to claim 1, wherein: the foamed asphalt port (13) is arranged obliquely downwards.
7. The foamed asphalt foaming chamber according to claim 1, wherein: the foaming head (1) comprises an upper cavity (15) and a lower cavity (16) which are connected with each other, the interior of the upper cavity (15) and the interior of the lower cavity (16) jointly enclose a foaming cavity body (11), a hot asphalt port (12) and a foaming medium port (14) are arranged on the upper cavity (15), and a foamed asphalt port (13) is arranged on the lower cavity (16).
8. The foamed asphalt foaming chamber according to claim 7, wherein: the lower cavity (16) is provided with a groove (161) which is annularly arranged, and the upper cavity (15) is provided with a sealing ring (151) which is embedded in the groove (161); or the upper cavity (15) is provided with a groove (161) which is arranged in an annular shape, and the lower cavity (16) is provided with a sealing ring (151) which is embedded in the groove (161).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210251913.5A CN114438847A (en) | 2022-03-15 | 2022-03-15 | Foamed asphalt foaming cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210251913.5A CN114438847A (en) | 2022-03-15 | 2022-03-15 | Foamed asphalt foaming cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114438847A true CN114438847A (en) | 2022-05-06 |
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ID=81358967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210251913.5A Pending CN114438847A (en) | 2022-03-15 | 2022-03-15 | Foamed asphalt foaming cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114438847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999010A (en) * | 2021-12-14 | 2022-02-01 | 中钢集团南京新材料研究院有限公司 | Preparation method of high-performance special graphite |
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| US20080259714A1 (en) * | 2007-04-17 | 2008-10-23 | Astec, Inc. | Method and apparatus for making asphalt concrete using foamed asphalt cement |
| CN201411434Y (en) * | 2009-06-05 | 2010-02-24 | 陕西长大博源公路养护科技有限公司 | Foamed asphalt foaming device |
| CN203319931U (en) * | 2013-06-06 | 2013-12-04 | 长安大学 | Foamed asphalt generating device |
| CN103806363A (en) * | 2012-11-09 | 2014-05-21 | 同济大学 | Efficient foamed asphalt foaming device |
| CN106223162A (en) * | 2016-08-31 | 2016-12-14 | 徐工集团工程机械有限公司 | Asphalt foaming apparatus |
| CN206635614U (en) * | 2016-12-15 | 2017-11-14 | 长安大学 | A kind of foam asphalt generation apparatus |
| CN206768532U (en) * | 2017-05-27 | 2017-12-19 | 青海第一路桥建设有限公司 | A kind of energy saving and environment friendly asphalt foaming apparatus |
-
2022
- 2022-03-15 CN CN202210251913.5A patent/CN114438847A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080259714A1 (en) * | 2007-04-17 | 2008-10-23 | Astec, Inc. | Method and apparatus for making asphalt concrete using foamed asphalt cement |
| CN201411434Y (en) * | 2009-06-05 | 2010-02-24 | 陕西长大博源公路养护科技有限公司 | Foamed asphalt foaming device |
| CN103806363A (en) * | 2012-11-09 | 2014-05-21 | 同济大学 | Efficient foamed asphalt foaming device |
| CN203319931U (en) * | 2013-06-06 | 2013-12-04 | 长安大学 | Foamed asphalt generating device |
| CN106223162A (en) * | 2016-08-31 | 2016-12-14 | 徐工集团工程机械有限公司 | Asphalt foaming apparatus |
| CN206635614U (en) * | 2016-12-15 | 2017-11-14 | 长安大学 | A kind of foam asphalt generation apparatus |
| CN206768532U (en) * | 2017-05-27 | 2017-12-19 | 青海第一路桥建设有限公司 | A kind of energy saving and environment friendly asphalt foaming apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999010A (en) * | 2021-12-14 | 2022-02-01 | 中钢集团南京新材料研究院有限公司 | Preparation method of high-performance special graphite |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cheng Haiying Inventor after: Wei Fangqian Inventor after: Li Lingyun Inventor before: Wei Fangqian Inventor before: Li Lingyun |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230118 Address after: 457000 2nd floor, building 5, Shuixie, southwest bank, intersection of Weidu street and Kunwu Road, Puyang City, Henan Province Applicant after: Henan Beizhu Asphalt Foaming Technology Co.,Ltd. Applicant after: CHANG'AN University Address before: 457000 2nd floor, building 5, Shuixie, southwest bank, intersection of Weidu street and Kunwu Road, Puyang City, Henan Province Applicant before: Henan Beizhu Asphalt Foaming Technology Co.,Ltd. |
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| TA01 | Transfer of patent application right |