CN102120886A - Modified asphalt and preparation method thereof - Google Patents
Modified asphalt and preparation method thereof Download PDFInfo
- Publication number
- CN102120886A CN102120886A CN 201110009827 CN201110009827A CN102120886A CN 102120886 A CN102120886 A CN 102120886A CN 201110009827 CN201110009827 CN 201110009827 CN 201110009827 A CN201110009827 A CN 201110009827A CN 102120886 A CN102120886 A CN 102120886A
- Authority
- CN
- China
- Prior art keywords
- reactor
- thermoplastic elastomer
- dimethylbenzene
- asphalt
- pitch
- 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.)
- Granted
Links
Images
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention discloses modified asphalt which comprises the following raw materials in parts by weight: 100 parts of 70# asphalt, 5-15 parts of thermoplastic elastomer SBS (Styrene-Ethylene-Butylene-Styrene) and 3-5 parts of 10# asphalt or rosin powder. A preparation method of the modified asphalt comprises the steps of: 1, dissolving the thermoplastic elastomer SBS in dimethylbenzene which is 18-20 times the weight of the thermoplastic elastomer SBS, stirring at normal temperature; 2, adding the 10# asphalt or rosin into the 70# asphalt in advance, heating together with the 70# asphalt, and then pumping the 70# hot asphalt and the 10# asphalt or rosin with temperature of 155-175 DEG C into an agitated reactor by using a pump; 3, adding and stirring a thermoplastic elastomer SBS and dimethylbenzene solution into the agitated reactor filled with the 70# hot asphalt by using a pump; and 4, cooling dimethylbenzene steam into dimethylbenzene liquid, recovering and recycling, and ending the reaction when the recycling quantity of the dimethylbenzene is close to the dimethylbenzene addition quantity. The two parts of modified asphalt with same weight are mixed by using the method disclosed by the invention, thus the electricity is saved by 110 kilowatt and the energy is also saved.
Description
Technical field
The present invention relates to a kind of bituminous composition and production method thereof.
Background technology
At present, the bituminous pavement of highway in China adopts the 70# modifying asphalt mostly, this modifying asphalt is to be added with the composition that thermoplastic elastomer (SBS) constitutes in 70# pitch, and both weight ratios are: 70# pitch: thermoelastic gonosome (SBS)=100:5 can increase the elasticity and the toughness of bituminous pavement like this.This modification 70# bituminous preparation method mainly is: earlier be that heated bitumen about 175 ℃-185 ℃ mixes with thermoplastic elastomer (SBS) and temperature, deliver in the colloidal mill then and grind, make it to mix.Its weak point is: because thermoplastic elastomer (SBS) elasticity is big, be difficult for mixing with pitch, colloidal mill must adopt powerful electric motor, and current consumption is big, not only wastes energy but also increase production cost.Also just because of this reason, the increase difficulty of thermoplastic elastomer (SBS) content is big, causes the performance of 70# modifying asphalt further not improve.
Summary of the invention
The object of the present invention is to provide a kind of performance to be better than prior art, preparation process power saving, modifying asphalt that cost is low and preparation method thereof.The present invention mainly is: improve the ratio of thermoplastic elastomer (SBS) in the composition, with solvent thermoplastic elastomer is dissolved, the dissolved product is mixed with 70# pitch again, again separated from solvent is extracted simultaneously at blended.
The used raw material of the present composition is: 70# pitch, SBS Thermoplastic Elastomer, 10# pitch or colophonium powder.Their parts by weight in composition are respectively: 70# pitch is 100 parts, SBS Thermoplastic Elastomer 5-15 part, 10# pitch or colophonium powder 3-5 part.
Preparation method of the present invention is as follows:
1, SBS Thermoplastic Elastomer is dissolved in the dimethylbenzene: SBS Thermoplastic Elastomer is placed xylene solvent, and SBS Thermoplastic Elastomer: dimethylbenzene=1:18-20(weight ratio).Normal temperature stirs down, makes SBS Thermoplastic Elastomer all by xylene soluble, becomes thick SBS Thermoplastic Elastomer xylene solution.
2,70# pitch places the thermal response still earlier: in advance 10# pitch or colophonium powder are added to 70# pitch, therewith heating, be that 155-165 ℃ 70# heated bitumen and 10# pitch or rosin are squeezed in the reactor with pump with temperature then, be provided with temperature in this reacting kettle jacketing and be 155-170 ℃ circulating heat conduction oil, it is lower than 180 ℃ with the temperature that the reaction liberated heat can be kept material in reactor.
3, the SBS Thermoplastic Elastomer that is dissolved in the dimethylbenzene is mixed with the 70# heated bitumen: join above-mentioned SBS Thermoplastic Elastomer xylene solution in the reactor of the above-mentioned 70# of being equipped with heated bitumen with pump, and open the agitator of merit reactor, the limit edged stirs, and makes it uniform mixing.Preferably the material of reactor bottom can be transferred to the top of reactor by pump, not only accelerates mixing velocity but also quicken the volatilization of dimethylbenzene, and the preparation time of product of the present invention is shortened.
4, remove diformazan benzo recovery in 70# pitch and the SBS Thermoplastic Elastomer composition: in the process that SBS Thermoplastic Elastomer xylene solution and 70# pitch mix, the dimethylbenzene that evaporates with vapor form enters the interchanger from the venting port of reactor, become dimethylbenzene liquid after the cold medium cooling of interchanger, reclaim and recycle.
5, reaction terminating: observation dimethylbenzene yield, when its during near the add-on of dimethylbenzene, reaction finishes.Satisfactory modifying asphalt can be discharged by reactor bottom discharge port.
The used production equipment of the present invention mainly contains: reactor, toothed gear pump, interchanger and induced draft fan.Wherein, reactor is established the reactor of agitator, peripheral hardware chuck in being, be provided with the thermal oil that material is used in the reacting by heating still in the chuck, this thermal oil links to each other with Heat-transfer Oil Pump by the import and export on the chuck, this heating heat-conducting oil mechanism is a heat-conducting oil furnace, and it can be coal furnace, gas furnace or oil oven.The discharge port of reactor lower end links to each other with the toothed gear pump inlet of peripheral hardware heat preservation mechanism by the insulation pipeline, and this toothed gear pump outlet can link to each other with the asphalt thermal insulation tank car, for the user provides finished product asphaltum.Preferably the said gear pump outlet can also link to each other with reactor top opening for feed by the insulation pipeline.Aforesaid reaction vessel top is provided with venting port, it links to each other with the exchanger heat medium inlet by conduit, and preferably this interchanger is a shell-and tube condenser, and the import and export of thermal medium all are located on the cylindrical outer casing, and the import and export of cold medium are located on the bobbin carriage, and this cold medium can be cold water, seawater or fluorine Lyons.Be preferably in reactor to the pipeline of interchanger and be provided with the sealed induced draft fan of forcing to accelerate the xylene steam flow velocity, it can not only accelerate the extraction rate of dimethylbenzene, but also can make system pressure be lower than normal atmosphere, reduces the dimethylbenzene boiling point, not only power saving but also energy-conservation.Also be provided with in addition the vapor pipe of the band valve that can be connected to the pipeline of interchanger with atmosphere at reactor.
The present invention compared with prior art has following advantage:
1, power saving, energy-conservation: two parts of modifying asphalts of same weight, mix 132 kilowatts of power consumptions with colloidal mill; Mix with the inventive method, 20 kilowatts of power consumptions are economized on electricity 110 kilowatts.
2, the inventive method can improve the ratio of SBS Thermoplastic Elastomer in the modifying asphalt, and then improves the bituminous pavement quality, increases bearing capacity, increases the service life.
3, product of the present invention and cement bridge floor adhesive property are good, in conjunction with firmly, have prolonged the duration of service of vehicular bridge bituminous pavement.
4, the present invention also is added with 10# pitch, and it can not only make, and bituminous pavement is high temperature resistant, water resistance good, and cost is low.
Description of drawings
Fig. 1 is a technical process simplified schematic diagram of the present invention.
Embodiment
In process for preparing modified asphalt technical process simplified schematic diagram shown in Figure 1, reactor 1 is established the reactor of agitator 2, peripheral hardware chuck 3 in being, be provided with the thermal oil that material is used in the reacting by heating still in the chuck, this thermal oil links to each other with Heat-transfer Oil Pump by the import and export on the chuck, and this heating heat-conducting oil mechanism is the fuel oil heat-conducting oil furnace.The discharge port of reactor lower end links to each other with toothed gear pump 5 inlets of peripheral hardware heat preservation mechanism by insulation pipeline 4, and this toothed gear pump outlet 6 can link to each other with the asphalt thermal insulation tank car.The said gear pump outlet also links to each other with reactor top opening for feed by insulation pipeline 7.Aforesaid reaction vessel top is provided with venting port 8, it links to each other with exchanger heat medium inlet 9 by conduit, this interchanger is a shell-and tube condenser 10, the import and export 11 of thermal medium all is located on the cylindrical outer casing 12, and the import 13 of the cold medium in fluorine Lyons, outlet 14 are located on the bobbin carriage, and they are imported and exported with freon compressor respectively and link to each other.To the pipeline of interchanger, be provided with sealed induced draft fan 15 at reactor.Also be provided with in addition the vapor pipe 16 of the band valve that can be connected to the pipeline of interchanger with atmosphere at reactor.
Example 1
5 kilograms of SBS Thermoplastic Elastomer are placed 90 kilograms of xylene solvents, and normal temperature stirs down, makes SBS Thermoplastic Elastomer all by xylene soluble, becomes thick SBS Thermoplastic Elastomer xylene solution.In advance 5 kilograms of 10# pitches are added in the double centner 70# pitch, therewith heating is that 165 ℃ 70# heated bitumen and 10# pitch is squeezed in the reactor with pump with temperature then, is provided with temperature in this reacting kettle jacketing and is 165 ℃ circulating heat conduction oil.Above-mentioned SBS Thermoplastic Elastomer xylene solution is joined in the reactor of the above-mentioned 70# of being equipped with heated bitumen with pump, and open the agitator of merit reactor, the limit edged stirs, and makes it uniform mixing.The material of reactor bottom is transferred to the top of reactor by toothed gear pump.In the process that SBS Thermoplastic Elastomer xylene solution and 70# pitch mix, xylene steam enters the interchanger from the venting port of reactor, is become dimethylbenzene liquid after the cold medium cooling of interchanger freonll-11, reclaims and recycles.Observation dimethylbenzene yield, when it was 88 kilograms, reaction finished.Open the vent valve on the vapor pipe, satisfactory modifying asphalt is discharged by reactor bottom discharge port.
Example 2
15 kilograms of SBS Thermoplastic Elastomer are placed 300 kilograms of xylene solvents, and normal temperature stirs down, makes SBS Thermoplastic Elastomer all by xylene soluble, becomes thick SBS Thermoplastic Elastomer xylene solution.In advance 3 kilograms of colophonium powders are added in the double centner 70# pitch, therewith heating is that 155 ℃ 70# heated bitumen and rosin is squeezed in the reactor with pump with temperature then, is provided with temperature in this reacting kettle jacketing and is 155 ℃ circulating heat conduction oil.Above-mentioned SBS Thermoplastic Elastomer xylene solution is joined in the reactor of the above-mentioned 70# of being equipped with heated bitumen with pump, and open the agitator of merit reactor, the limit edged stirs, and makes it uniform mixing.The material of reactor bottom is transferred to the top of reactor by toothed gear pump.In the process that SBS Thermoplastic Elastomer xylene solution and 70# pitch mix, xylene steam enters the interchanger from the venting port of reactor, is become dimethylbenzene liquid after the cold medium cooling of interchanger freonll-11, reclaims and recycles.Observation dimethylbenzene yield, when it was 87 kilograms, reaction finished.Open the vent valve on the vapor pipe, satisfactory modifying asphalt is discharged by reactor bottom discharge port.
Claims (7)
1. modifying asphalt, it is characterized in that: the composition and the parts by weight of raw material are as follows:
70# pitch: 100 parts,
SBS Thermoplastic Elastomer: 5-15 part,
10# pitch or colophonium powder: 3-5 part.
2. the process for preparing modified asphalt of claim 1 is characterized in that:
SBS Thermoplastic Elastomer is placed xylene solvent, and the weight ratio of its SBS Thermoplastic Elastomer and dimethylbenzene is 1:18-20, and normal temperature stirs down, and SBS Thermoplastic Elastomer is all dissolved;
In advance 10# pitch or colophonium powder are added in the 70# pitch, therewith heating is that 155-175 ℃ 70# heated bitumen and 10# pitch or rosin are squeezed in the reactor with pump with temperature then, is provided with temperature in this reacting kettle jacketing and is 155-170 ℃ circulating heat conduction oil;
Above-mentioned SBS Thermoplastic Elastomer xylene solution is joined in the reactor of the above-mentioned 70# of being equipped with heated bitumen with pump, and start the agitator of reactor, the limit edged stirs;
3. according to the described process for preparing modified asphalt of claim 2, it is characterized in that: the material of reactor bottom can be transferred to the top of reactor by pump.
4. the modified asphalt production device of claim 2 is characterized in that: establish agitator, peripheral hardware chuck in the reactor, be provided with thermal oil in the chuck, the thermal oil on this chuck is imported and exported and is linked to each other with Heat-transfer Oil Pump, and this Heat-transfer Oil Pump links to each other with heat-conducting oil furnace again; The discharge port of reactor lower end links to each other with the toothed gear pump inlet of peripheral hardware heat preservation mechanism by the insulation pipeline, and this toothed gear pump outlet can link to each other with the asphalt thermal insulation tank car; Aforesaid reaction vessel top is provided with venting port, and it links to each other with the exchanger heat medium inlet by conduit, also is provided with the vapor pipe of being with valve at reactor to the pipeline of interchanger in addition.
5. modified asphalt production device according to claim 4 is characterized in that: this interchanger is a shell-and tube condenser, and the import and export of thermal medium all are located on the cylindrical outer casing, and the import and export of cold medium are located on the bobbin carriage respectively.
6. modified asphalt production device according to claim 4 is characterized in that: the said gear pump outlet also links to each other with reactor top opening for feed by the insulation pipeline.
7. modified asphalt production device according to claim 4 is characterized in that: be provided with sealed induced draft fan at reactor to the pipeline of interchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100098275A CN102120886B (en) | 2011-01-18 | 2011-01-18 | Modified asphalt and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100098275A CN102120886B (en) | 2011-01-18 | 2011-01-18 | Modified asphalt and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102120886A true CN102120886A (en) | 2011-07-13 |
| CN102120886B CN102120886B (en) | 2012-06-06 |
Family
ID=44249561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100098275A Expired - Fee Related CN102120886B (en) | 2011-01-18 | 2011-01-18 | Modified asphalt and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102120886B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6048447A (en) * | 1998-02-19 | 2000-04-11 | Marathon Ashland Petroleum Llc | Asphalt compositions containing solvent deasphalted bottoms and rerefined lube oil bottoms, and their preparation |
| CN101100553A (en) * | 2007-08-15 | 2008-01-09 | 戴建华 | Bitumen compositions and preparation method thereof |
-
2011
- 2011-01-18 CN CN2011100098275A patent/CN102120886B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6048447A (en) * | 1998-02-19 | 2000-04-11 | Marathon Ashland Petroleum Llc | Asphalt compositions containing solvent deasphalted bottoms and rerefined lube oil bottoms, and their preparation |
| CN101100553A (en) * | 2007-08-15 | 2008-01-09 | 戴建华 | Bitumen compositions and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102120886B (en) | 2012-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109382064A (en) | Waste gas recovering device and recovery method in a kind of naphthalene water reducer production process | |
| CN103756704B (en) | System for producing modified coal tar pitch and preparation method thereof | |
| CN102909366B (en) | Method and device for preparing coating cobalt powder | |
| CN101148543A (en) | Device and technique for preparing rubber asphalt by using rubber powder | |
| CN105131999A (en) | Technology and device for single furnace single kettle production of modified asphalt | |
| CN101818086B (en) | Production process and production equipment of sludge and garbage carbonized slurry fuel | |
| CN102444074B (en) | Device for producing modified asphalt and method for producing modified asphalt by using device | |
| CN102199265A (en) | Long carbon chain nylon modified phenolic resin and preparation method thereof | |
| CN206768532U (en) | A kind of energy saving and environment friendly asphalt foaming apparatus | |
| CN102120886B (en) | Modified asphalt and preparation method thereof | |
| CN106188400B (en) | A kind of preparation process of polystyrene multi-component copolymer high molecular material | |
| CN101255343A (en) | Method for utilizing waste plastics, slop oil and refining fuel diesel | |
| CN100343367C (en) | Method and device for producing fuel oil by using waste plastic | |
| CN202390743U (en) | Device for producing modified asphalt | |
| CN105176553A (en) | Waste plastic decomposition heater | |
| CN204338148U (en) | A kind of reactor for the production of ureaformaldehyde slow-release or control-release fertilizer | |
| CN201202062Y (en) | Rubber asphalt production facility for continuous production | |
| CN103301773A (en) | Electrothermal type coal powder modifier and method for preparing modified coal by modifier | |
| CN208449281U (en) | A kind of energy-saving device for preparing of naphthalene water reducer | |
| CN205815675U (en) | A kind of response system device of solvent-recoverable | |
| CN216879284U (en) | Auxiliary material preparation system utilizing waste heat of process tower of polyester device | |
| CN101457121A (en) | Colorful high elastic waterproof coating material and preparation method | |
| CN109114993A (en) | Desulfidation tail gas apparatus for reusing residual heat | |
| CN214032180U (en) | Low-temperature hydrothermal carbonization efficient heat exchange system | |
| CN213669227U (en) | Cold-heat exchange reaction kettle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20180118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |