CN108867251B - Foam asphalt generator - Google Patents
Foam asphalt generator Download PDFInfo
- Publication number
- CN108867251B CN108867251B CN201810987060.5A CN201810987060A CN108867251B CN 108867251 B CN108867251 B CN 108867251B CN 201810987060 A CN201810987060 A CN 201810987060A CN 108867251 B CN108867251 B CN 108867251B
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- CN
- China
- Prior art keywords
- stator
- rotor
- shell
- cavity
- asphalt
- 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.)
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Classifications
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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
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/1022—Coating the solid ingredients by passing same through a shower or cloud of binder
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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
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Nozzles (AREA)
- Road Paving Machines (AREA)
Abstract
The invention belongs to the technical field of asphalt processing equipment, and particularly relates to a foam asphalt generator, which comprises a shell, a power shaft, a rotor, a stator, a switching block and an air atomization nozzle, wherein a foaming cavity is arranged in the shell; the stator and the rotor are engaged relatively, and the convex tooth heads which are distributed at intervals circumferentially and uniformly are distributed on the end surfaces with different diameters; the tail part of the stator is fixedly provided with a switching block, and the switching block is provided with an asphalt inlet communicated with the inner cavity of the stator and the foaming cavity; the tail end of the air atomization nozzle is provided with a water inlet and a compressed air inlet which are communicated with the outside; the shell of the foaming cavity is also provided with a foaming cavity outlet communicated with the outside. The invention has the beneficial effects that: the shearing dispersion force generated by the engagement of the rotor and the stator in the high-speed rotation process is utilized to realize the high dispersion of water and air in asphalt, thereby improving the performance index of the foamed asphalt.
Description
Technical Field
The invention belongs to the technical field of asphalt processing equipment, and particularly relates to a foam asphalt generator.
Background
The foaming principle of foam asphalt is that water and compressed air are sprayed into hot asphalt at a certain pressure and temperature, tiny water drops are contacted with the hot asphalt, the high-temperature asphalt transfers heat to the surface of the water drops, the temperature of asphalt is reduced, enough heat is absorbed by water to generate gasification, the formed pressure enables asphalt to form bubbles surrounded by asphalt membranes, the bubbles continue to increase under the steam expansion pressure until the surface tension of the asphalt membranes is balanced with the steam pressure, and the volume of the bubbles is reduced along with the loss of the heat of water vapor, so that the bubbles disappear. Because of the poor thermal conductivity of asphalt, the bubbles can remain stable for a certain period of time. The foamed asphalt can be used for warm mixing and cold regeneration, and meets the requirements of energy conservation, emission reduction and environmental protection.
Two key performance indicators of foamed asphalt are foaming rate and half-life, wherein the amount of water injected into the hot asphalt and the temperature of the hot asphalt are main factors affecting the foaming quality, but the mixing uniformity degree of asphalt, water and air plays a key role in the foaming process. The existing foam asphalt generating device realizes the distribution of water drops in hot asphalt by means of the jet flow effect of water and compressed air, the mixing degree is limited, and further the performance index of the foam asphalt is affected, and no special high-strength high-efficiency equipment aiming at the problem exists in the market at present.
Disclosure of Invention
The invention aims to solve the problems and make up the defects of the traditional technology, and provides the foam asphalt generator with high strength and high stirring efficiency.
The invention is realized by the following technical scheme:
the foam asphalt generator comprises a shell, a power shaft, a rotor, a stator, a switching block and an air atomization nozzle, wherein a foaming cavity is formed in the shell, a bearing is arranged in the foaming cavity, the power shaft connected with an external power source is assembled in an inner hole of the bearing, the rotor which synchronously rotates at a high speed is fixedly arranged at the end part of the power shaft in the foaming cavity, and the stator coaxially corresponding to the end surface of the rotor is fixed on the shell of the foaming cavity; the stator and the rotor are engaged relatively, and convex tooth heads which are circumferentially distributed at intervals are uniformly distributed on the end surfaces with different diameters; the tail part of the stator is fixedly provided with a switching block, and the switching block is provided with an asphalt inlet communicated with the inner cavity of the stator and the foaming cavity; the air atomization nozzle is fixed on the adapter block, the nozzle of the air atomization nozzle penetrates into the stator cavity communicated with the foaming cavity, and the tail end of the air atomization nozzle is provided with a water inlet and a compressed air inlet communicated with the outside; the shell of the foaming cavity is also provided with a foaming cavity outlet communicated with the outside.
The rotor is fixedly arranged at the end part of the power shaft through a key and a shaft end pressing plate.
The stator is fixed on the shell through threads, and the tail part of the stator penetrates out of the shell and is fixed through a locking nut A limiting axial displacement.
The adapter block is fixed on a central hole of a stator cavity at the tail part of the stator in a threaded manner.
The air atomization nozzle is coaxially fixed on the adapter block through a locking nut B.
The air atomization spray nozzle comprises a water inlet, a compressed air inlet, a flow adjusting knob and a spray nozzle.
The meshing gap between the stator and the rotor is adjusted through the threaded connection between the stator and the shell and the locking nut A.
The stator cavity directs asphalt, water and air to the intersection of the rotor and the central axis of the stator.
The distance between the nozzle and the meshing end surface of the stator is adjusted through threaded connection between the air atomization nozzle and the adapter and the locking nut B.
The invention has the beneficial effects that: according to the multi-circumference convex tooth heads with evenly distributed meshed end surfaces of the stator and the rotor, the shearing dispersion force generated by the meshing of the rotor and the stator in the high-speed rotation process of the rotor is utilized to realize the high dispersion of water and air in asphalt, so that the performance index of foam asphalt is improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the connection relationship of the mechanisms of the present invention;
FIG. 2 is a schematic diagram of a tooth head distribution structure of a rotor engagement end face;
FIG. 3 is a schematic diagram of a tooth head distribution structure of a stator engagement end face;
in the figure, a power shaft 1, a shell 2, a foaming cavity outlet 3, a rotor 4, a key 5, a stator 6, a lock nut A7, a conversion block 8, a water inlet 9, a flow adjusting knob 10, a shaft end pressing plate 11, a nut 12, a nozzle 13, an air atomizing nozzle 14, an asphalt inlet 15, a lock nut B16, a compressed air inlet 17 and a raised tooth head 18.
Detailed Description
The drawings illustrate one embodiment of the invention.
The invention relates to a foam asphalt generator, which comprises a shell 2, a power shaft 1, a rotor 4, a stator 6, a switching block 8 and an air atomization nozzle 14, wherein a foaming cavity is arranged in the shell 2, a bearing is arranged in the foaming cavity, the inner hole of the bearing is assembled and connected with the power shaft 1 of an external power source, the end part of the power shaft 1 in the foaming cavity is fixedly provided with the rotor 4 which synchronously rotates at a high speed, and the stator 6 coaxially corresponding to the end surface of the rotor 4 is fixed on the shell 2 of the foaming cavity; the stator 6 and the rotor 4 are engaged relatively, and the convex tooth heads 18 which are circumferentially and alternately distributed are uniformly distributed on different diameters of the end surfaces; the tail part of the stator 6 is fixedly provided with a switching block 8, and the switching block 8 is provided with an asphalt inlet 15 which is communicated with the inner cavity of the stator 6 and the foaming cavity; the air atomization nozzle 14 is fixed on the adapter block 8, the nozzle 13 of the air atomization nozzle penetrates into the cavity of the stator 6 communicated with the foaming cavity, and the tail end of the air atomization nozzle 14 is provided with a water inlet 9 and a compressed air inlet 17 communicated with the outside; the shell 2 of the foaming cavity is also provided with a foaming cavity outlet 3 communicated with the outside.
The rotor is fixedly arranged at the end part of the power shaft 1 through a key 5 and a shaft end pressing plate 11. The stator 6 is fixed on the shell 2 through threads, and the tail part of the stator 6 penetrates out of the shell 2 and is fixed through a locking nut A7 limiting axial displacement. The adapter block 8 is fixed on a central hole of a stator cavity at the tail part of the stator 6 in a threaded manner. The air atomization nozzle 14 is coaxially fixed on the adapter block 8 through a locking nut B16. The air atomizer 14 comprises a water inlet 9, a compressed air inlet 17, a flow control knob 10 and a nozzle 13. The meshing gap between the stator 6 and the rotor 4 is adjusted by the threaded connection between the stator 6 and the housing 2 and the lock nut A7. The stator cavities direct asphalt, water and air to the central hub junction of the rotor 4 and stator 6. The distance between the nozzle 13 and the engagement end surface of the stator 6 is adjusted by the threaded connection between the air atomization nozzle 14 and the adapter 8 and the locking nut B16.
When the air-foam asphalt foaming device works, the power shaft 1 is connected with an external power source to input driving force, air, water and asphalt are respectively conveyed into the foaming cavity from the compressed air inlet 17, the water inlet 9 and the asphalt inlet 15, and the shearing dispersion force generated by meshing with the stator 6 in the high-speed rotation process of the rotor 4 is utilized to realize the high dispersion of the water and the air in the asphalt, so that the performance index of the foam asphalt is improved.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (9)
1. A foamed asphalt generator, characterized by: the device comprises a shell, a power shaft, a rotor, a stator, a switching block and an air atomization nozzle, wherein a foaming cavity is arranged in the shell, a bearing is arranged in the foaming cavity, the inner hole of the bearing is provided with the power shaft connected with an external power source, the end part of the power shaft in the foaming cavity is fixedly provided with the rotor which synchronously rotates at a high speed, and the stator coaxially corresponding to the end surface of the rotor is fixed on the shell of the foaming cavity; the stator and the rotor are engaged relatively, and the convex tooth heads which are distributed at intervals circumferentially and uniformly are distributed on the end surfaces with different diameters; the tail part of the stator is fixedly provided with a switching block, and the switching block is provided with an asphalt inlet communicated with the inner cavity of the stator and the foaming cavity; the air atomization nozzle is fixed on the adapter block, the nozzle of the air atomization nozzle penetrates into the stator cavity communicated with the foaming cavity, and the tail end of the air atomization nozzle is provided with a water inlet and a compressed air inlet communicated with the outside; the shell of the foaming cavity is also provided with a foaming cavity outlet communicated with the outside.
2. The foamed asphalt generator of claim 1, wherein: the rotor is fixedly arranged at the end part of the power shaft through a key and a shaft end pressing plate.
3. The foamed asphalt generator of claim 1, wherein: the stator is fixed on the shell through threads, and the tail part of the stator penetrates out of the shell and is fixed through a locking nut A limiting axial displacement.
4. A foamed asphalt generator according to claim 3, wherein: the meshing gap between the stator and the rotor is adjusted through the threaded connection between the stator and the shell and the locking nut A.
5. The foamed asphalt generator of claim 1, wherein: the adapter block is fixed on a central hole of a stator cavity at the tail part of the stator in a threaded manner.
6. The foamed asphalt generator of claim 1, wherein: the air atomization nozzle is coaxially fixed on the adapter block through a locking nut B.
7. The foamed asphalt generator of claim 5, wherein: the distance between the nozzle and the meshing end surface of the stator is adjusted through threaded connection between the air atomization nozzle and the adapter and the locking nut B.
8. The foamed asphalt generator of claim 1, wherein: the air atomization spray nozzle comprises a water inlet, a compressed air inlet, a flow adjusting knob and a spray nozzle.
9. The foamed asphalt generator of claim 1, wherein: the stator cavity directs asphalt, water and air to the intersection of the rotor and the central axis of the stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810987060.5A CN108867251B (en) | 2018-08-28 | 2018-08-28 | Foam asphalt generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810987060.5A CN108867251B (en) | 2018-08-28 | 2018-08-28 | Foam asphalt generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108867251A CN108867251A (en) | 2018-11-23 |
| CN108867251B true CN108867251B (en) | 2023-08-04 |
Family
ID=64322237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810987060.5A Active CN108867251B (en) | 2018-08-28 | 2018-08-28 | Foam asphalt generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108867251B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL234403B1 (en) * | 2019-04-01 | 2020-02-28 | Bitum Logistic Spolka Z Ograniczona Odpowiedzialnoscia | Device for foaming the bituminous binder |
| CN110424217A (en) * | 2019-08-10 | 2019-11-08 | 深圳市市政工程总公司 | The foaming machine of foamed asphalt |
| CN114085029A (en) * | 2020-10-08 | 2022-02-25 | 陈久斌 | Foam material foaming machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509224A (en) * | 2009-04-07 | 2009-08-19 | 天津鼎盛工程机械有限公司 | Spray cavity type generating apparatus for foam asphalt |
| CN103450918A (en) * | 2013-09-10 | 2013-12-18 | 徐工集团工程机械股份有限公司道路机械分公司 | High-uniformity foam asphalt generating device |
| CN103498403A (en) * | 2013-10-15 | 2014-01-08 | 徐工集团工程机械股份有限公司道路机械分公司 | Liquid supply device and liquid supply method for manufacturing foamed asphalt |
| CN104383978A (en) * | 2014-11-20 | 2015-03-04 | 山东大山路桥工程有限公司 | Colloid mill stator and rotor and colloid mill comprising stator and rotor |
| CN106436531A (en) * | 2016-12-06 | 2017-02-22 | 徐工集团工程机械有限公司 | Foamed asphalt generation device |
| CN106835900A (en) * | 2017-01-10 | 2017-06-13 | 长安大学 | A kind of multistage foam asphalt generation apparatus and method |
| CN208981078U (en) * | 2018-08-28 | 2019-06-14 | 山东大山路桥工程有限公司 | Foam asphalt generators |
-
2018
- 2018-08-28 CN CN201810987060.5A patent/CN108867251B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509224A (en) * | 2009-04-07 | 2009-08-19 | 天津鼎盛工程机械有限公司 | Spray cavity type generating apparatus for foam asphalt |
| CN103450918A (en) * | 2013-09-10 | 2013-12-18 | 徐工集团工程机械股份有限公司道路机械分公司 | High-uniformity foam asphalt generating device |
| CN103498403A (en) * | 2013-10-15 | 2014-01-08 | 徐工集团工程机械股份有限公司道路机械分公司 | Liquid supply device and liquid supply method for manufacturing foamed asphalt |
| CN104383978A (en) * | 2014-11-20 | 2015-03-04 | 山东大山路桥工程有限公司 | Colloid mill stator and rotor and colloid mill comprising stator and rotor |
| CN106436531A (en) * | 2016-12-06 | 2017-02-22 | 徐工集团工程机械有限公司 | Foamed asphalt generation device |
| CN106835900A (en) * | 2017-01-10 | 2017-06-13 | 长安大学 | A kind of multistage foam asphalt generation apparatus and method |
| CN208981078U (en) * | 2018-08-28 | 2019-06-14 | 山东大山路桥工程有限公司 | Foam asphalt generators |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108867251A (en) | 2018-11-23 |
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