CN106758693B - Foamed asphalt generating device and method - Google Patents
Foamed asphalt generating device and method Download PDFInfo
- Publication number
- CN106758693B CN106758693B CN201611163630.6A CN201611163630A CN106758693B CN 106758693 B CN106758693 B CN 106758693B CN 201611163630 A CN201611163630 A CN 201611163630A CN 106758693 B CN106758693 B CN 106758693B
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- foaming
- distributor
- asphalt
- medium
- cavity
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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
-
- 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
- E01C19/1045—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers the mixture being discharged continuously
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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
- E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
- E01C19/1068—Supplying or proportioning the ingredients
- E01C19/1077—Supplying or proportioning the ingredients the liquid ingredients
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Nozzles (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a foamed asphalt generating device and a method, comprising a foaming cavity, a foaming medium distributor, a hot asphalt distributor, a foaming medium pusher and a pushing rotator; the foaming cavity is of a barrel-shaped structure with one open end, the foaming medium distributor and the hot asphalt distributor are arranged in the foaming cavity, and the foaming medium distributor is annularly arranged around the hot asphalt distributor; the outer side of the opening end of the foaming cavity is provided with a pushing rotator connected with a hot asphalt distributor; the outside of the side wall of the foaming cavity is provided with a foaming medium pusher connected with a foaming medium distributor. The foaming medium distributor annularly surrounds the hot asphalt distributor, meanwhile, the rotator is pushed to drive the hot asphalt distributor to rotate, and the foaming medium pusher drives the foaming medium distributor to move back and forth, so that the foaming medium and the hot asphalt can be in omnibearing mixing contact without dead angles; greatly improving the foaming effect of the asphalt.
Description
Technical Field
The invention belongs to the field of road maintenance, and particularly relates to a foamed asphalt generating device and a foamed asphalt generating method.
Background
The foam asphalt technology and the pavement recycled material technology are continuously developed, the foam asphalt is more and more applied in the road maintenance, the foam asphalt as the recycled material has many advantages, such as excellent fatigue resistance and track resistance of the foam asphalt concrete, the foam asphalt technology can be used for plant mixing equipment and pavement equipment, and the design of an asphalt foaming cavity is one of the key technologies for preparing high-quality foam asphalt and obviously influences the foaming effect of the asphalt.
The principle of the foam asphalt technology lies in that cold water and hot asphalt are used to foam asphalt in a certain container, so as to reduce viscosity, increase specific surface area of asphalt and facilitate the mixing of asphalt and aggregate. According to the research state at home and abroad, it is almost impossible to completely analyze the asphalt foaming process, asphalt foaming is a complex physical process, whether hot asphalt and cold water are fully mixed or not in a foaming cavity, the injection pressure, flow and the like of each fluid phase influence the foaming effect of asphalt, and the foaming effect is poor.
Disclosure of Invention
The invention aims to provide a foamed asphalt generating device and a foamed asphalt generating method, which aim to solve the problem of poor foaming effect of asphalt in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a foamed asphalt generating device comprises a foaming cavity, a foaming medium distributor, a hot asphalt distributor, a foaming medium impeller and a pushing rotator; the foaming cavity is of a barrel-shaped structure with one open end, the foaming medium distributor and the hot asphalt distributor are arranged in the foaming cavity, and the foaming medium distributor is annularly arranged around the hot asphalt distributor; the outer side of the opening end of the foaming cavity is provided with a pushing rotator connected with a hot asphalt distributor; the outside of the side wall of the foaming cavity is provided with a foaming medium pusher connected with a foaming medium distributor.
Furthermore, a foaming cavity sealing cover is arranged at an opening of the foaming cavity and is fixed on the foaming cavity through a screw; the center of the sealing cover of the foaming cavity is provided with a through hole.
Furthermore, the hot asphalt distributor is tubular, and a plurality of through holes are formed in the pipe wall; one end of the hot asphalt distributor is connected with an asphalt guide pipe, and the asphalt guide pipe penetrates through a central through hole of the sealing cover of the foaming cavity and is arranged in the pushing rotator.
Further, an asphalt guide pipe sealing sleeve is sleeved on the asphalt guide pipe outside the sealing cover of the foam cavity; the asphalt conduit is provided with a first valve.
Furthermore, the foaming medium distributor is arc-shaped, and a plurality of spray holes are formed in the concave surface of the arc; the number of the foaming medium pushers is 2, the foaming medium pushers are respectively connected with the two foaming medium distributors through the foaming medium guide pipes, and the foaming medium pushers can drive the foaming medium distributors to move back and forth.
Furthermore, a second valve is arranged on the foaming medium guide pipe.
Furthermore, an outlet is arranged at the non-opening end of the foaming cavity, and a foamed asphalt conduit is arranged on the outlet; the filter screen is arranged at one end of the outlet at the inner side of the foaming cavity and is vertical to the side wall of the foaming cavity.
Further, an operation method based on a foamed asphalt generating device, the foamed asphalt generating device comprises a foaming cavity, a foaming medium distributor, a hot asphalt distributor, a foaming medium impeller and a pushing rotator; the foaming cavity is of a barrel-shaped structure with an opening at one end, the foaming medium distributor and the hot asphalt distributor are arranged in the foaming cavity, and the foaming medium distributor is annularly arranged around the hot asphalt distributor; the outer side of the opening end of the foaming cavity is provided with a pushing rotator connected with a hot asphalt distributor; a foaming medium pusher connected with a foaming medium distributor is arranged on the outer side of the side wall of the foaming cavity;
the hot asphalt distributor is tubular, and the pipe wall is provided with a plurality of through holes; one end of the hot asphalt distributor is connected with an asphalt guide pipe, and the asphalt guide pipe penetrates through a central through hole of the sealing cover of the foaming cavity and is arranged in the pushing rotator; the asphalt conduit is provided with a first valve;
the number of the foaming medium pushers is as follows, and the two foaming medium distributors are respectively connected through the foaming medium guide pipes; a second valve is arranged on the foaming medium guide pipe;
an outlet is arranged at the non-opening end of the foaming cavity, and a foamed asphalt conduit is arranged on the outlet; a filter screen is arranged at one end of the outlet at the inner side of the foaming cavity and is vertical to the side wall of the foaming cavity; the operation method of the foamed asphalt generating device comprises the following steps:
1) Opening the first valve, allowing hot asphalt to enter the asphalt distributor through the asphalt conduit, pushing the rotator to drive the asphalt distributor to start rotating, and allowing the hot asphalt to rotate and be sprayed to the foaming cavity through the asphalt distributor;
2) Opening the second valve, the foaming medium enters the foaming medium distributor through the foaming medium guide pipe, the foaming medium is sprayed around the asphalt distributor, and the foaming medium pusher pushes the foaming medium distributor to move back and forth;
3) And adjusting the first valve and the second valve to respectively control the flow output of the foaming medium and the hot asphalt, wherein in the foaming cavity, the foaming medium is fully mixed and foamed with the hot asphalt sprayed by the asphalt distributor, and after foaming is finished, the asphalt and the foaming medium are mixed by the filter screen again and flow out through the foamed asphalt guide pipe.
Compared with the prior art, the invention has the following technical effects:
the foaming medium distributor annularly surrounds the hot asphalt distributor, the rotator is pushed to drive the hot asphalt distributor to rotate, and the foaming medium pusher drives the foaming medium distributor to move back and forth, so that the foaming medium and the hot asphalt can be in omnibearing mixed contact without dead angles; the foaming effect of the asphalt is greatly improved;
the valves are arranged on the asphalt guide pipe and the foaming medium guide pipe, so that the flow can be controlled, and the foaming medium and the hot asphalt can be in contact reaction more fully.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the asphalt distributor structure of the present invention;
FIG. 3 is a schematic view of a foamable medium dispenser of the present invention;
wherein: 1. pushing the rotator; 2. a bitumen conduit gland; 3. a sealing cover of the foaming cavity; 4. a screw; 5. a foaming medium dispenser; 6. a hot asphalt dispenser; 7. filtering with a screen; 8. a foaming cavity; 9. a foamed asphalt conduit; 10. a foaming medium conduit; 11. a foamed medium pusher; 12. a second valve; 13. a first valve.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1, 2 and 3, a foamed asphalt generating apparatus is characterized by comprising a foaming chamber 8, a foaming medium distributor 5, a hot asphalt distributor 6, a foaming medium pusher 11 and a pushing rotator 1; the foaming cavity 8 is a barrel-shaped structure with an opening at one end, the foaming medium distributor 5 and the hot asphalt distributor 6 are arranged in the foaming cavity 8, and the foaming medium distributor 5 is annularly arranged around the hot asphalt distributor 6; the outer side of the opening end of the foaming cavity 8 is provided with a pushing rotator 1 connected with a hot asphalt distributor 6; the outside of the side wall of the foaming cavity 8 is provided with a foaming medium pusher 11 connected with the foaming medium distributor 5.
A foaming cavity sealing cover 3 is arranged at an opening of the foaming cavity 8, and the foaming cavity sealing cover 3 is fixed on the foaming cavity 8 through a screw 4; the center of the sealing cover 3 of the foaming cavity is provided with a through hole.
The hot asphalt distributor 6 is tubular, and the pipe wall is provided with a plurality of through holes; one end of the hot asphalt distributor 6 is connected with an asphalt conduit which passes through a central through hole of the foaming cavity sealing cover 3 and is arranged in the pushing rotator 1.
An asphalt guide pipe sealing sleeve 2 is sleeved on the asphalt guide pipe outside the bubble cavity sealing cover 3; the bitumen conduit is provided with a first valve 13.
The foaming medium distributor 5 is arc-shaped, and a plurality of spray holes are formed in the concave surface of the arc; the number of the foaming medium pushers 11 is 2, and the foaming medium pushers 11 are respectively connected with the two foaming medium distributors 5 through the foaming medium guide pipes 10, and the foaming medium pushers 11 can drive the foaming medium distributors 5 to move back and forth.
The foaming medium conduit 10 is provided with a second valve 12.
An outlet is arranged at one end of the foaming cavity 8 without the opening, and a foamed asphalt conduit 9 is arranged on the outlet; one end of the inner side of the foaming cavity 8 at the outlet is provided with a filter screen 7, and the filter screen 7 is vertical to the side wall of the foaming cavity 8.
The working principle of the invention is as follows:
1) Opening the first valve 13, allowing hot asphalt to enter the asphalt distributor 6 through the asphalt conduit, pushing the rotator 1 to drive the asphalt distributor 6 to start rotating, and allowing the hot asphalt to rotate and spray to the foaming cavity 8 through the asphalt distributor 6;
2) Opening the second valve 12, the foaming medium enters the foaming medium distributor 5 through the foaming medium conduit 10, the foaming medium is sprayed around the asphalt distributor 6, and the foaming medium pusher 11 pushes the foaming medium distributor 5 to move back and forth;
3) The first valve 13 and the second valve 12 are adjusted to respectively control the flow output of the foaming medium and the hot asphalt, the foaming medium and the hot asphalt sprayed by the asphalt distributor 6 are fully mixed and foamed in the foaming cavity 8, and after foaming is finished, the asphalt and the foaming medium are mixed again through the filter screen 7 and flow out through the foamed asphalt conduit 9.
Claims (2)
1. A foamed asphalt generating device is characterized by comprising a foaming cavity (8), a foaming medium distributor (5), a hot asphalt distributor (6), a foaming medium impeller (11) and a pushing rotator (1); the foaming cavity (8) is of a barrel-shaped structure with an opening at one end, the foaming medium distributor (5) and the hot asphalt distributor (6) are arranged inside the foaming cavity (8), and the foaming medium distributor (5) is annularly arranged around the hot asphalt distributor (6); the outer side of the end of the foaming cavity (8) with the opening is provided with a pushing rotator (1) connected with a hot asphalt distributor (6); a foaming medium pusher (11) connected with the foaming medium distributor (5) is arranged on the outer side of the side wall of the foaming cavity (8);
a foaming cavity sealing cover (3) is arranged at an opening of the foaming cavity (8), and the foaming cavity sealing cover (3) is fixed on the foaming cavity (8) through a screw (4); the center of the sealing cover (3) of the foaming cavity is provided with a through hole;
the hot asphalt distributor (6) is tubular, and the pipe wall is provided with a plurality of through holes; one end of the hot asphalt distributor (6) is connected with an asphalt conduit which passes through a central through hole of the foaming cavity sealing cover (3) and is arranged in the pushing rotator (1);
an asphalt guide pipe sealing sleeve (2) is sleeved on the asphalt guide pipe on the outer side of the foaming cavity sealing cover (3); a first valve (13) is arranged on the asphalt conduit;
the foaming medium distributor (5) is arc-shaped, and a plurality of spray holes are formed in the concave surface of the arc-shaped; the number of the foaming medium pushers (11) is 2, the foaming medium pushers are respectively connected with the two foaming medium distributors (5) through the foaming medium guide pipes (10), and the foaming medium pushers (11) can drive the foaming medium distributors (5) to move back and forth;
a second valve (12) is arranged on the foaming medium guide pipe (10);
an outlet is arranged at one end of the foaming cavity (8) without the opening, and a foamed asphalt conduit (9) is arranged on the outlet; a filter screen (7) is arranged at one end of the outlet at the inner side of the foaming cavity (8), and the filter screen (7) is vertical to the side wall of the foaming cavity (8).
2. An operation method based on a foamed asphalt generating device is characterized in that the foamed asphalt generating device comprises a foaming cavity (8), a foaming medium distributor (5), a hot asphalt distributor (6), a foaming medium impeller (11) and a pushing rotator (1); the foaming cavity (8) is of a barrel-shaped structure with an opening at one end, the foaming medium distributor (5) and the hot asphalt distributor (6) are arranged inside the foaming cavity (8), and the foaming medium distributor (5) is annularly arranged around the hot asphalt distributor (6); the outer side of the end of the foaming cavity (8) with the opening is provided with a pushing rotator (1) connected with a hot asphalt distributor (6); a foaming medium pusher (11) connected with the foaming medium distributor (5) is arranged on the outer side of the side wall of the foaming cavity (8);
the hot asphalt distributor (6) is tubular, and the pipe wall is provided with a plurality of through holes; one end of the hot asphalt distributor (6) is connected with an asphalt guide pipe, and the asphalt guide pipe penetrates through a central through hole of the foaming cavity sealing cover (3) and is arranged in the pushing rotator (1);
a first valve (13) is arranged on the asphalt conduit;
the number of the foaming medium pushers (11) is (2), and the two foaming medium distributors (5) are respectively connected through a foaming medium guide pipe (10); a second valve (12) is arranged on the foaming medium guide pipe (10);
an outlet is arranged at one end of the foaming cavity (8) without the opening, and a foamed asphalt conduit (9) is arranged on the outlet; a filter screen (7) is arranged at one end of the outlet at the inner side of the foaming cavity (8), and the filter screen (7) is vertical to the side wall of the foaming cavity (8);
the operation method of the foamed asphalt generating device comprises the following steps:
1) Opening a first valve (13), enabling hot asphalt to enter a hot asphalt distributor (6) through an asphalt guide pipe, pushing a rotator (1) to drive the hot asphalt distributor (6) to start rotating, and rotationally spraying the hot asphalt to a foaming cavity (8) through the hot asphalt distributor (6);
2) Opening a second valve (12), allowing the foaming medium to enter the foaming medium distributor (5) through a foaming medium guide pipe (10), spraying the foaming medium around the hot asphalt distributor (6), and allowing the foaming medium distributor (5) to move back and forth by a foaming medium pusher (11);
3) The flow output of the foaming medium and the hot asphalt is respectively controlled by adjusting the first valve (13) and the second valve (12), the foaming medium and the hot asphalt sprayed by the hot asphalt distributor (6) are fully mixed and foamed in the foaming cavity (8), and the asphalt and the foaming medium are mixed again through the filter screen (7) after foaming is finished and flow out through the foamed asphalt conduit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611163630.6A CN106758693B (en) | 2016-12-15 | 2016-12-15 | Foamed asphalt generating device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611163630.6A CN106758693B (en) | 2016-12-15 | 2016-12-15 | Foamed asphalt generating device and method |
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| Publication Number | Publication Date |
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| CN106758693A CN106758693A (en) | 2017-05-31 |
| CN106758693B true CN106758693B (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611163630.6A Active CN106758693B (en) | 2016-12-15 | 2016-12-15 | Foamed asphalt generating device and method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102505610A (en) * | 2011-11-22 | 2012-06-20 | 福建南方路面机械有限公司 | Foaming device for foamed asphalt |
| CN203613434U (en) * | 2013-10-17 | 2014-05-28 | 徐州徐工筑路机械有限公司 | Hot asphalt foaming mechanism |
| CN103938526A (en) * | 2014-04-22 | 2014-07-23 | 济南大学 | Atomization-method homogeneous foamed asphalt generator and foaming method thereof |
| CN104532721A (en) * | 2014-12-31 | 2015-04-22 | 西安达刚路面机械股份有限公司 | Foamed asphalt generation spraying system |
| CN106223162A (en) * | 2016-08-31 | 2016-12-14 | 徐工集团工程机械有限公司 | Asphalt foaming apparatus |
| CN206337485U (en) * | 2016-12-15 | 2017-07-18 | 长安大学 | A kind of foam asphalt generation apparatus |
-
2016
- 2016-12-15 CN CN201611163630.6A patent/CN106758693B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102505610A (en) * | 2011-11-22 | 2012-06-20 | 福建南方路面机械有限公司 | Foaming device for foamed asphalt |
| CN203613434U (en) * | 2013-10-17 | 2014-05-28 | 徐州徐工筑路机械有限公司 | Hot asphalt foaming mechanism |
| CN103938526A (en) * | 2014-04-22 | 2014-07-23 | 济南大学 | Atomization-method homogeneous foamed asphalt generator and foaming method thereof |
| CN104532721A (en) * | 2014-12-31 | 2015-04-22 | 西安达刚路面机械股份有限公司 | Foamed asphalt generation spraying system |
| CN106223162A (en) * | 2016-08-31 | 2016-12-14 | 徐工集团工程机械有限公司 | Asphalt foaming apparatus |
| CN206337485U (en) * | 2016-12-15 | 2017-07-18 | 长安大学 | A kind of foam asphalt generation apparatus |
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| CN106758693A (en) | 2017-05-31 |
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