CN102505610B - Foaming device for foamed asphalt - Google Patents
Foaming device for foamed asphalt Download PDFInfo
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- CN102505610B CN102505610B CN201110372166.2A CN201110372166A CN102505610B CN 102505610 B CN102505610 B CN 102505610B CN 201110372166 A CN201110372166 A CN 201110372166A CN 102505610 B CN102505610 B CN 102505610B
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Abstract
A foaming device for foamed asphalt comprises a foaming nozzle, a water nozzle, an air nozzle, an asphalt pipe, and an asphalt on-off control mechanism, wherein the water nozzle and the air nozzle are communicated with the foaming nozzle. The foaming device is characterized in that the foaming nozzle is composed of a foaming nozzle body and a suit connected to water and the air nozzle, two parallelly-arranged annular grooves taking the foaming nozzle as a center are formed on the foaming nozzle body, a spout communicated with a foaming cavity is opened on the annular grooves, the suit adopts a segmented step structure, when the suit is sleeved with the foaming nozzle body, and the grooves on the foaming nozzle body and the inner wall of the suit form a sealed annular cavity. Through the adoption of the foaming device, high-temperature liquid asphalt is in full contact with water and compressed air, so as to improve the quality of the foaming of asphalt, and ensure the efficient foaming of the asphalt; and the problems of scaling and blockage of the asphalt spout are effectively solved.
Description
Technical field
The invention belongs to road materials production equipment field, particularly a kind ofly can efficiently to foam and can the foaming device for foamed asphalt of residual asphalt on automated cleaning pitch spout.
Background technology
Place with Foamed Asphalt and ground surface material regeneration techniques be constantly fast development in recent years, and the foaming device for foamed asphalt for the preparation of foamed asphalt also develops thereupon, extends many new constructions.
At present the comparatively normal structure adopted has two kinds: one to be adopt the single (operating) water nozzle that be arranged in parallel and single compressed-air atomizer directly to pass in foamed asphalt foam chamber, this kind of structure adopts the pitch of point-to-point type to contact with water, compressed air, considerable part pitch must be caused not contact with water, air, foaming effect is undesirable, and bubbling efficiency is not high.Two is adopt cylinder as driving element, utilizes the low side of the pitch brace of cylinder to be pressed into the mode that presses down of pitch spout to control the break-make of pitch spout, the lower end ventilation of cylinder when effervescent nozzle works, and pull bar rises, and pitch spout is communicated with effervescent nozzle; When effervescent nozzle inoperative, the upper end ventilation of cylinder, pull bar declines, and pitch spout and effervescent nozzle are blocked; Because asphalt viscosity is relatively large, the asphalt nozzle leading to effervescent nozzle main body at pitch pipe easily blocks, conventional solution has additional one section of boss similar with asphalt nozzle size at the low side of above-mentioned pull bar, along with the conversion of cylinder piston upper and lower cavity is ventilated, this boss mechanical type is driven to clear up asphalt nozzle, but the asphalt nozzle break-make mode due to this structure determines that asphalt nozzle opening size is usually less, the boss size that can be used for clearing up pitch fouling is less, and easily damage, fault rate is high.
Summary of the invention
In order to solve bubbling efficiency not high, clear up sordid problem, the invention provides a kind of can efficiently to foam and can the foaming device for foamed asphalt of residual asphalt on automated cleaning asphalt nozzle.
For this reason, the invention provides a kind of foaming device for foamed asphalt, comprise effervescent nozzle, the (operating) water nozzle be communicated with effervescent nozzle and gas jets, pitch pipe, pitch break-make controlling organization, described effervescent nozzle has the pitch spout be communicated with pitch pipe, pitch spout and effervescent nozzle logical, disconnected control by pitch break-make controlling organization, it is characterized in that: the toroidal cavity outer wall of effervescent nozzle being formed with the sealing centered by effervescent nozzle that twice be arranged in parallel, the sidewall of this toroidal cavity has the spout be communicated with the foam chamber of effervescent nozzle, two toroidal cavities sealed respectively sealed nozzle gentle to (operating) water nozzle are connected, described toroidal cavity is all located at the below of pitch spout, toroidal cavity near pitch spout is connected with (operating) water nozzle.The pitch that sprayed by pitch spout first with and contacting with the gas of the cavity annular spray be communicated with gas jets after contacting with the annular water ejected of cavity that (operating) water nozzle is communicated with.
Further, described effervescent nozzle is made up of effervescent nozzle body and the external member that is connected with water, gas jets, described effervescent nozzle body is formed with the annular groove centered by effervescent nozzle that twice be arranged in parallel, annular groove has the spout be communicated with the foam chamber of nozzle, described external member adopts staging bench formula structure, when after itself and effervescent nozzle body fit, the inwall of the groove on effervescent nozzle body and this external member surrounds the toroidal cavity of sealing.
Further, in the scope of described external member and effervescent nozzle body fit, the bossing on the downside of two annular grooves is provided with resistant to elevated temperatures sealing ring.
Further, described pitch spout is arranged at directly over effervescent nozzle, and the water on the toroidal cavity sidewall be connected with (operating) water nozzle and gas jets, gas blowout mouth are equally spaced and the central axis or in a certain angle of the center line of spout and effervescent nozzle main body.
Further, the center line of described water spout and the central axis of effervescent nozzle main body, the center line of gas blowout mouth and the center line of effervescent nozzle main body in a certain angle downwards.
Further, described pitch break-make controlling organization comprises cylinder, pull bar and portion end surface and the suitable cut-off part of pitch spout, described pull bar one end is connected with cylinder output, and the other end extends in the foam chamber of effervescent nozzle through pitch pipe and is connected with cut-off part.
Further, described cut-off part is up-small and down-big notch cuttype shape structure, and end face and the pitch spout on its top are suitable, and bottom is pyramidal structure.
The present invention has following beneficial effect:
According to foaming device for foamed asphalt provided by the invention, overcome the insufficient defect that can not thoroughly clean with pitch spout of existing asphalt foaming apparatus foaming.Adopt mode foaming water and compressed air being taked to annular spray, high-temperature liquid state pitch is fully contacted with water, compressed air; Adopt water and gas successively to contact the mode of high-temperature liquid state pitch, improve the quality of asphalt foaming, ensure that pitch can efficiently foam; Adopt special asphalt nozzle break-make structure, be namely applicable to asphalt foaming, effectively solve the problem of fouling on pitch spout, blocking simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 1 is the schematic diagram of the present embodiment foaming device for foamed asphalt.
Fig. 2 is the schematic diagram of the effervescent nozzle of the present embodiment foaming device for foamed asphalt.
Detailed description of the invention
Technical scheme for a better understanding of the present invention, describes embodiment provided by the invention in detail below in conjunction with accompanying drawing.
With reference to shown in Fig. 1, this foam asphalt generation apparatus comprises: effervescent nozzle main body 1, external member 2, pitch pipe 3, fixed cover 4, cylinder supports part 5, cylinder 6, pull bar 7, fairlead 8, seal 9, pitch interface tube 10, cut-off part 11, gasket seal 12, (operating) water nozzle 13, compressed-air atomizer 14.
With reference to shown in Fig. 1,2, effervescent nozzle main body 1, its top center is provided with pitch spout 101, the outer wall of nozzle body 1 is formed with the first ring connected in star 102 centered by effervescent nozzle and the second annular groove 103 that upper and lower twice be arranged in parallel, the sidewall of first, second annular groove has uniformly the water spout 104, the gas blowout mouth 105 that are communicated with the foam chamber 10 of nozzle body 1, the center line of water spout 104 and the central axis of nozzle body 1, the center line of gas spout 101 and the center line of nozzle body 1 in a certain angle downwards.
With reference to shown in Fig. 1, external member 2, is distributed with two nozzle interfaces 201,202 for it is upper and lower, be tightly connected respectively with (operating) water nozzle 13 and compressed-air atomizer 14.Effervescent nozzle main body 1 adopts staging bench formula structure with in described external member 2 section of cooperation be communicated with gas jets with (operating) water nozzle, after effervescent nozzle main body 1 and external member 2 fit, first ring connected in star 102 and the second annular groove 103 surround with the sidewall of external member 2, lower twice first toroidal cavity 203 and the second toroidal cavity 204, in external member 2 with in the scope of effervescent nozzle body 1 fit, the downside of the first toroidal cavity 201 and the second toroidal cavity 202 establishes that have respectively can high-temperature resistant seal ring 205, ensure effervescent nozzle main body 1 assemble with the external member 2 that (operating) water nozzle is communicated with gas jets after overall tightness.
With reference to shown in Fig. 1, pitch pipe 3 arrange with external member 2 and effervescent nozzle main body directly over 1, be also provided with fixed cover 4 above it, side place has pitch interface tube 10.Pitch pipe 3 and external member 2 and effervescent nozzle main body 1 adopt conventional connected mode to fix (can be threaded, weld or bolton connection etc.), during assembling on each end with gasket seal 12.
With reference to shown in Fig. 1, fixed cover 4 adopts described conventional connected mode fixing with pitch pipe 3, and fairlead 8 is bolted and is fixed on fixed cover 4, in the space, end simultaneously suppressed by seal 9, be fastened between fixed cover 4 and fairlead 8.Cylinder 6 is via cylinder supports part 5, and bolt is fastened on fixed cover 4.
With reference to shown in Fig. 1, the piston rod piece lower end of described cylinder 6 is provided with threaded connection hole, and one end of pull bar 7 can be connected with cylinder 6 via this screwed hole, can pass through fastening nuts, adjustment simultaneously.The other end of pull bar 7 connects via bolt, and be fixed with cut-off part 11, the portion end surface of this cut-off part 11 matches with pitch spout 101.
With reference to shown in Fig. 1, described pitch interface tube 10 is connected with another foam asphalt generation apparatus of the present invention by the mode such as screw thread, welding, or is connected with bitumen pipeline, forms complete foamed asphalt nozzle assembly.
The operating principle of the present embodiment:
Open lead to pitch interface tube 10 bitumenpump, lead to the foaming water water pump of (operating) water nozzle 13, lead to the air compressor of compressed-air atomizer 14, respectively high-temperature liquid state pitch, water and compressed air are sent in foam asphalt generation apparatus of the present invention.
Described cylinder 6 there are two air vents connect the upper and lower cavity of cylinder: upper cavity ventilation can make cut-off part 11 tapering point depart from pitch pipe 3; Lower chamber ventilation can make cut-off part 11 tapering point be close to pitch pipe 3.During inoperative, cylinder 6 need not be ventilated; During work, the air inlet of cylinder 6 upper cavity, pull bar 7 moves down, and drives cut-off part 11 tapering point to depart from pitch pipe 3, thus is sent in effervescent nozzle main body 1 via the space between pull bar 7 and cut-off part 11 by the high-temperature liquid state pitch in pitch pipe 3.Because asphalt viscosity is relatively large, the asphalt nozzle leading to effervescent nozzle main body 1 at pitch pipe 3 easily blocks, utilize moving up and down of pull bar 7, the asphalt nozzle on pitch pipe 3 is opened or closed to cut-off part 11, not only serve the effect that the supply of break-make pitch enters effervescent nozzle main body 1, serve the effect of mechanical chipping residual asphalt simultaneously.
Described water, compressed air lead in the twice toroidal cavity 203,204 that effervescent nozzle main body 1 and external member 2 formed, from water spout 104, the ejection of gas blowout mouth 105 annular.From the water of water ejection 104 after the hard pitch High Efficiency Thermal sprayed with asphalt nozzle exchanges, the compressed air continuation continuing the ejection of same gas blowout mouth 105 contacts, foam generated pitch thus.Ensure that pitch can efficiently foam.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process with this, and the equivalence namely done according to the present patent application the scope of the claims and description changes and modifies, and all should still remain within the scope of the patent.
Claims (6)
1. a foaming device for foamed asphalt, comprise effervescent nozzle, the (operating) water nozzle be communicated with effervescent nozzle and gas jets, pitch pipe, pitch break-make controlling organization, described effervescent nozzle has the pitch spout be communicated with pitch pipe, pitch spout and effervescent nozzle logical, disconnected control by pitch break-make controlling organization, it is characterized in that: the toroidal cavity outer wall of effervescent nozzle being formed with the sealing centered by effervescent nozzle that twice be arranged in parallel, the sidewall of this toroidal cavity has the spout be communicated with the foam chamber of effervescent nozzle, two toroidal cavities sealed respectively sealed nozzle gentle to (operating) water nozzle are connected, described toroidal cavity is all located at the below of pitch spout, toroidal cavity near pitch spout is connected with (operating) water nozzle, the pitch that sprayed by pitch spout first with after contacting with the annular water ejected of cavity that (operating) water nozzle is communicated with contacts with the gas of the cavity annular spray be communicated with gas jets again,
Effervescent nozzle is made up of effervescent nozzle body and the external member that is connected with water, gas jets, described effervescent nozzle body is formed with the annular groove centered by effervescent nozzle that twice be arranged in parallel, annular groove has the spout be communicated with the foam chamber of effervescent nozzle, described external member adopts staging bench formula structure, when after itself and effervescent nozzle body fit, the inwall of the groove on effervescent nozzle body and this external member surrounds the toroidal cavity of sealing.
2. foaming device for foamed asphalt according to claim 1, is characterized in that: in the scope of described external member and effervescent nozzle body fit, the bossing on the downside of two annular grooves is provided with resistant to elevated temperatures sealing ring.
3. foaming device for foamed asphalt according to claim 1 and 2, it is characterized in that: described pitch spout is arranged at directly over effervescent nozzle, the water on the toroidal cavity sidewall be connected with (operating) water nozzle and gas jets, gas blowout mouth are equally spaced and the center line of the center line of spout and effervescent nozzle main body is in a certain angle.
4. foaming device for foamed asphalt according to claim 3, is characterized in that: the center line of described water spout and the central axis of effervescent nozzle main body, the center line of gas blowout mouth and the center line of effervescent nozzle main body in a certain angle downwards.
5. foaming device for foamed asphalt according to claim 1 and 2, it is characterized in that: described pitch break-make controlling organization comprises cylinder, pull bar and portion end surface and the suitable cut-off part of pitch spout, described pull bar one end is connected with cylinder output, and the other end extends in the foam chamber of effervescent nozzle through pitch pipe and is connected with cut-off part.
6. foaming device for foamed asphalt according to claim 5, is characterized in that: described cut-off part is up-small and down-big notch cuttype shape structure, and end face and the pitch spout on its top are suitable, and bottom is pyramidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110372166.2A CN102505610B (en) | 2011-11-22 | 2011-11-22 | Foaming device for foamed asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110372166.2A CN102505610B (en) | 2011-11-22 | 2011-11-22 | Foaming device for foamed asphalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102505610A CN102505610A (en) | 2012-06-20 |
| CN102505610B true CN102505610B (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110372166.2A Active CN102505610B (en) | 2011-11-22 | 2011-11-22 | Foaming device for foamed asphalt |
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| Country | Link |
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| CN (1) | CN102505610B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806363A (en) * | 2012-11-09 | 2014-05-21 | 同济大学 | Efficient foamed asphalt foaming device |
| CN102900006B (en) * | 2012-11-12 | 2015-07-15 | 长沙威鸿机电科技有限公司 | Foam asphalt warm-mixing system |
| CN104452530A (en) * | 2014-10-21 | 2015-03-25 | 中山市拓维电子科技有限公司 | Asphalt foaming technology |
| CN106758693B (en) * | 2016-12-15 | 2022-10-11 | 长安大学 | Foamed asphalt generating device and method |
Citations (6)
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|---|---|---|---|---|
| GB1325916A (en) * | 1970-01-20 | 1973-08-08 | Mobil Oil Corp | Method and apparatus for producing foamed materials |
| JPH10113580A (en) * | 1996-10-02 | 1998-05-06 | Constr Sotaa Inc | Nozzle device of manufacturing device for foamed asphalt |
| CN2656018Y (en) * | 2003-07-26 | 2004-11-17 | 山东省菏泽市公路管理局工程三处 | Asphalt-distributing spray head |
| CN101487219A (en) * | 2009-03-04 | 2009-07-22 | 同济大学 | High-efficiency self-cleaning asphalt foaming apparatus |
| 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 |
| CN202337938U (en) * | 2011-11-22 | 2012-07-18 | 福建南方路面机械有限公司 | High-efficiency foamed asphalt preparation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2000192C2 (en) * | 2006-08-23 | 2008-02-26 | Veenvoort B V De | Stable bitumen foam and its preparation and use. |
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2011
- 2011-11-22 CN CN201110372166.2A patent/CN102505610B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1325916A (en) * | 1970-01-20 | 1973-08-08 | Mobil Oil Corp | Method and apparatus for producing foamed materials |
| JPH10113580A (en) * | 1996-10-02 | 1998-05-06 | Constr Sotaa Inc | Nozzle device of manufacturing device for foamed asphalt |
| CN2656018Y (en) * | 2003-07-26 | 2004-11-17 | 山东省菏泽市公路管理局工程三处 | Asphalt-distributing spray head |
| CN101487219A (en) * | 2009-03-04 | 2009-07-22 | 同济大学 | High-efficiency self-cleaning asphalt foaming apparatus |
| 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 |
| CN202337938U (en) * | 2011-11-22 | 2012-07-18 | 福建南方路面机械有限公司 | High-efficiency foamed asphalt preparation device |
Non-Patent Citations (1)
| Title |
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| 泡沫沥青技术与装备的研究;程海鹰等;《工程机械》;20100310;第41卷(第3期);第18-22页 * |
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| CN102505610A (en) | 2012-06-20 |
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Address after: Fengze District of Quanzhou City, Fujian province 362000 Xunmei Industrial Zone Patentee after: Fujian Nanfang pavement machinery Co., Ltd Address before: Fengze District of Quanzhou City, Fujian province 362000 Xunmei Industrial Zone Patentee before: FUJIAN SOUTH HIGHWAY MACHINERY Co.,Ltd. |
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