CN102900006A - Foam asphalt warm-mixing system - Google Patents
Foam asphalt warm-mixing system Download PDFInfo
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- CN102900006A CN102900006A CN2012104497118A CN201210449711A CN102900006A CN 102900006 A CN102900006 A CN 102900006A CN 2012104497118 A CN2012104497118 A CN 2012104497118A CN 201210449711 A CN201210449711 A CN 201210449711A CN 102900006 A CN102900006 A CN 102900006A
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Abstract
The invention discloses a foam asphalt warm-mixing system, which consists of a pumping and measuring system and a foam asphalt generator; the pumping and measuring system is responsible for the pumping and measuring of foam water; the using amount of the foam water is determined automatically or manually according to the using amount of heated asphalt and the foam water is sprayed in the heated asphalt; a guide plate is arranged inside the foam asphalt generator; two guide holes are formed in the guide plate; a shearing effect also can be generated through the mutual effect between fluid and tube wall; and a jet adjusting plate of the foam asphalt generator is designed to be slightly raised upwards along the flow direction. The foam asphalt warm-mixing system can be arranged in various asphalt mixing stations, and is good in universality, low in production cost, integrated for ejector device, long in service life, good in mixing effect of asphalt and mixture, capable of using conduction oil pipelines for heating and easy to install.
Description
Technical field
Foamed asphalt temperature involved in the present invention mix system with asphalt foaming after, be used for batch (-type) or continuous asphalt mixing station and produce various Warm-Mix Bitumen Mixture, comprise the stirring of modified bitumen.
Background technology
The pitch temperature is mixed technology (WMA) because having the advantages such as energy-saving and emission-reduction, environmental protection, is subject in recent years extensive concern.The pitch temperature technology of mixing can be divided into two classes, that is: warm-mixing agent method and foamed asphalt temperature are mixed method.What domestic present employing was more is the warm-mixing agent method, reduces the viscosity of pitch and realizes that temperature mixes such as patent imported materials such as adding Evotherm warm-mixing agent or Sasobit warm-mixing agent.The warm-mixing agent method relates to all kinds of patent warm-mixing agents, and is very high to the dependence of proprietary material, and its core technology is that each side has separately, and more detailed ins and outs still are in the secret stage.Although cooling-down effect is obvious, the interpolation of patent warm-mixing agent has improved the cost of production of bituminous mixture, and the performance of pitch is also had in various degree impact.Just only there is the equipment of test usefulness in the asphalt foaming of domestic preparation, and can not be used for asphalt mixing plant, foam asphalt generators and control system thereof that the foamed asphalt temperature of the present invention system of mixing then uses particular design have solved and domesticly make asphalt foaming make it that better economy more be arranged with warm-mixing agent.
Summary of the invention
Technical problem solved by the invention is to provide the foamed asphalt temperature to mix system, to solve the shortcoming in the above-mentioned background technology.
The foamed asphalt temperature is mixed system, formed by pumping metering system and foam asphalt generators, pumping metering system be responsible for foaming pumping and the metering of water, consumption according to heated bitumen determines that by automatic or manual mode the consumption of foaming water and the water that will foam spray into heated bitumen, heated bitumen and foaming water are mixed fast fully, a deflector is equipped with in foam asphalt generators inside, two pod apertures are arranged on the deflector, in the time of heated bitumen process pod apertures, be split into the pitch jet of two strands of strong high speed and high pressures, and can form larger low speed adverse current zone at the pitch Around Jet, because the flow velocity of jet-core region is far longer than the flow velocity of countercurrent zone on every side, so between jet and adverse current zone, can produce strong liquidating, there is strong shear action between the fluid layer, high-pressure foam water is ejected at the low speed countercurrent zone of pitch Around Jet, this design function can increase the contact area of heated bitumen and foaming water, effectively improved the mixed effect of heated bitumen and foaming water, foam asphalt generators can produce eddy current effect and turbulence effect, the synergistic effect of eddy current effect and turbulence effect so that the mixed liquor of heated bitumen and foaming water mixed rapidly, heated bitumen fully foams in the process of mixing, heated bitumen after processing through foam asphalt generators forms directly to spray into behind the foamed asphalt and mixes cylinder and become bituminous mixture with aggregate blending, because the viscosity of foamed asphalt is lower, can effectively improve the workability of bituminous mixture, so can gather materials fully wrapping under 25--35 ℃ temperature than normal hot-mix asphalt mixture, reduce the mix temperature of bituminous mixture, realize the production that the foamed asphalt temperature is mixed compound.
Foam asphalt generators has utilized the turbulence effect with shear action dexterously, heated bitumen is through producing violent turbulent flow behind the deflector, shear action by turbulent flow has improved the effect of mixing, when flow can produce eddy current effect through obstruction the time, eddy current effect makes fluid low-pressure area alternately occur, also helps the mixing of fluid.
In the present invention, interaction between fluid and the tube wall also can produce shearing effect, the jet trimmer of foam asphalt generators is designed to streamwise and slightly tilts upward, heated bitumen by deflector after the direction of formed jet will depart from the axis direction of foam asphalt generators, jet will be with certain angle directive tube wall, when jet more and more near the tube wall time, can form multiple fluid layer along the jet-core region, exist shear action, jet finally near tube wall, to be twisted into owing to speed is different between each layer and be very thin fluid layer.The distortion action of jet shape makes the surface area of jet greatly increase the further mixed effect that improved.
Beneficial effect:
Foam asphalt generators involved in the present invention has solved the technical problem that existing asphalt mixing plant can only warm be mixed, and domesticly can only carry out the technique that temperature is mixed with warm-mixing agent, characteristics of the present invention can be installed in that various asphalt mixing plant versatilities are good, cost of production is low, integrated injection apparatus, long service life, pitch have good mixed effect, thermal conductive oil pipeline heating, easily installation with mix.
Description of drawings
Fig. 1 is that foamed asphalt temperature of the present invention is mixed the system architecture schematic diagram.
Wherein: 1, strainer; 2, foam asphalt generators; 3, electric-control system; 4, metering system; 5, high-pressure hydraulic pump 6, deep fat preparation and pumping system 7, deep fat metering system.
The specific embodiment
In order to make technological means of the present invention, creation characteristic, workflow, using method reach purpose and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Strainer 1 connects high-pressure hydraulic pump 5, high-pressure hydraulic pump 5 connects electric-control system 3 and metering system 4, metering system 4 connects foam asphalt generators 2, connect foam asphalt generators 2 and connect deep fat preparation and pumping system 7, pumping system 7 connects high-pressure hydraulic pump 6, and wherein electric-control system 3 connects metering system 4 and high-pressure hydraulic pump 6.
Above demonstration and described basic principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (1)
1. the foamed asphalt temperature is mixed system, it is characterized in that, formed by pumping metering system and foam asphalt generators, pumping metering system be responsible for foaming pumping and the metering of water, consumption according to heated bitumen determines that by automatic or manual mode the consumption of foaming water and the water that will foam spray into heated bitumen, a deflector is equipped with in foam asphalt generators inside, two pod apertures are arranged on the deflector, interaction between fluid and the tube wall also can produce shearing effect, and the jet trimmer of foam asphalt generators is designed to streamwise and slightly tilts upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210449711.8A CN102900006B (en) | 2012-11-12 | 2012-11-12 | Foam asphalt warm-mixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210449711.8A CN102900006B (en) | 2012-11-12 | 2012-11-12 | Foam asphalt warm-mixing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102900006A true CN102900006A (en) | 2013-01-30 |
| CN102900006B CN102900006B (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210449711.8A Expired - Fee Related CN102900006B (en) | 2012-11-12 | 2012-11-12 | Foam asphalt warm-mixing system |
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| CN (1) | CN102900006B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1008331A2 (en) * | 1981-05-20 | 1983-03-30 | Специальное Конструкторское Бюро По Проектированию Дорожных Машин Кременчугского Производственного Объединения "Дормашина" | Apparatus for heating and continuos dehydration of organic binders |
| JP3836474B2 (en) * | 2004-03-31 | 2006-10-25 | 株式会社中山鉄工所 | Dust suppression device |
| CN101487219A (en) * | 2009-03-04 | 2009-07-22 | 同济大学 | High-efficiency self-cleaning asphalt foaming apparatus |
| 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 |
| CN102505609A (en) * | 2011-10-27 | 2012-06-20 | 武汉理工大学 | Asphalt foaming cavity for preparing foamed asphalt |
-
2012
- 2012-11-12 CN CN201210449711.8A patent/CN102900006B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1008331A2 (en) * | 1981-05-20 | 1983-03-30 | Специальное Конструкторское Бюро По Проектированию Дорожных Машин Кременчугского Производственного Объединения "Дормашина" | Apparatus for heating and continuos dehydration of organic binders |
| JP3836474B2 (en) * | 2004-03-31 | 2006-10-25 | 株式会社中山鉄工所 | Dust suppression device |
| CN101487219A (en) * | 2009-03-04 | 2009-07-22 | 同济大学 | High-efficiency self-cleaning asphalt foaming apparatus |
| 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 |
| CN102505609A (en) * | 2011-10-27 | 2012-06-20 | 武汉理工大学 | Asphalt foaming cavity for preparing foamed asphalt |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN102900006B (en) | 2015-07-15 |
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Granted publication date: 20150715 Termination date: 20151112 |
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