CN102964852B - Method for producing modified asphalt by using Buton rock asphalt and hot method crusher - Google Patents
Method for producing modified asphalt by using Buton rock asphalt and hot method crusher Download PDFInfo
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- CN102964852B CN102964852B CN201210449382.7A CN201210449382A CN102964852B CN 102964852 B CN102964852 B CN 102964852B CN 201210449382 A CN201210449382 A CN 201210449382A CN 102964852 B CN102964852 B CN 102964852B
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Abstract
The invention discloses a method for producing modified asphalt by using Buton rock asphalt, comprising the following steps of: mixing rock asphalt particles with thermogravimetric pyrobitumen to obtain a mixed asphalt material with a diameter less than 1mm, wherein the amount of the thermogravimetric pyrobitumen is based on the fact that the rock asphalt particles can flow and are not caked as a limit; emulsifying and grinding the mixed asphalt material with a diameter less than 1mm to obtain a modified asphalt material with the fineness being not lower than 200 meshes; and carrying out conventional quality blending on the modified asphalt material to obtain the modified asphalt. The invention also discloses a hot method crusher which comprises a power device and a crushing device, wherein a shell of the crushing device is internally separated by a material separation cylinder; a stirring device is arranged at the middle segment of a main shaft in the material separation cylinder; a movable disc is arranged at the lower segment of the main shaft; and a static disc is arranged on the inner wall of the shell corresponding to the movable disc. According to the method and the device, the Buton rock asphalt with a melting point higher than 200 DEG C into the thermogravimetric pyrobitumen with modification temperature below 190 DEG C to obtain high-performance modified asphalt.
Description
Technical field
The present invention relates to a kind of production method and production unit of modifying asphalt, relate in particular to a kind of method and hot method crusher that utilizes the honest rock asphalt of cloth to produce modifying asphalt.
Background technology
Rock asphalt can be divided into viscid bitumen and gilsonite, and the general oil length of viscid bitumen is higher, use it as a kind of comprehensive fuel and extract lubricating oil, fuel wet goods is of great value.And the main component of gilsonite is bituminous matter, colloid and mineral bitumen matrix, its utility value on road is very high.
The honest rock asphalt of natural cloth (also claiming BRA) originates from South Pacific Indonesia Sulawesi province Bu Dun island, it is that oil changes through reaching the deposition of 1 years in rock crack, at heat, pressure, be oxidized, melt the bitumen generating under the comprehensive action of enzyme, bacterium, because it originates in Indonesia Bu Dun island, gain the name.The honest rock asphalt of cloth is a kind of gilsonite, so be suitable for road bedding.
The honest rock asphalt of cloth contains the unfilled bitumen of 20-40% conventionally, due to coexisting of rock asphalt and physical environment 1 years, makes the unfilled bitumen of this 20-40% and the combination of sandstone reach abnormal stable state, becomes a kind of new compound.The honest rock asphalt of cloth is the same with heavy traffic paving asphalt (also claiming matrix pitch) is all the derivative of oil, has extraordinary compatibleness between the two, does not have segregation phenomenon while therefore mixing.The honest rock asphalt of cloth, as the properties-correcting agent of heavy traffic paving asphalt, becomes the optimum activity material of heavy traffic paving asphalt and sandstone, and the compatibility of itself and heavy traffic paving asphalt is far superior to the compatibility of polymer modifiers and heavy traffic paving asphalt.
But the fusing point of the honest rock asphalt of cloth surpasses 200 ℃, and the Heating temperature that heavy traffic paving asphalt allows is below 190 ℃, so the lower honest rock asphalt of cloth of fineness can not be dissolved in heavy traffic paving asphalt by stirring.The honest rock asphalt raw ore of cloth is very hard, and Brinell hardness is more than or equal to 3, and raw ore bituminous matter is softer more sticky, by screen cloth, is very easy to stop up, and the smalls after fragmentation is again squeezed and will clumps together.So done a lot of tests for these features of raw ore, don't work that jaw crushing, reaction type are broken, cycle is broken, circular cone type is broken, roll crushing, hammer crushing or vertical shaft impact crusher, can be broken, but because the honest rock asphalt of the cloth after fragmentation is more sticky, all the time do not cross sieve, even with pulse sieve high pressure air sifter, in the course of time, screen cloth is blocked in capital, so traditional common crusher cannot be crushed to the honest rock asphalt raw ore of cloth below 3mm, more cannot reach the fineness below 1mm.
For these reasons, make the application of the honest rock asphalt of cloth on road bedding be subject to great limitation.
Summary of the invention
Object of the present invention provides a kind of method and hot method crusher that utilizes the honest rock asphalt of cloth to produce modifying asphalt with regard to being in order to address the above problem.
In order to achieve the above object, the present invention has adopted following technical scheme:
The method of utilizing the honest rock asphalt of cloth to produce modifying asphalt of the present invention, comprises the following steps:
(1) obtain the mix asphalt material that diameter is less than 1mm after rock asphalt particle is mixed with hot heavy traffic paving asphalt, the amount of described hot heavy traffic paving asphalt is can make described rock asphalt particle flow, non-caked being limited;
(2) to diameter, be that the mix asphalt material that is less than 1mm carries out emulsification and grinding, obtain fineness and be not less than 200 object modifying asphalt material;
(3) modifying asphalt material is allocated by Ordinary fruit quality, obtains satisfactory modifying asphalt.
In aforesaid method, focus on rock asphalt particle to mix with hot heavy traffic paving asphalt, utilize the mobility of hot heavy traffic paving asphalt make to be with sticking rock asphalt particle can flow, non-caked, thereby provide condition for next step emulsification and grinding.
Particularly, in described step (1), described diameter is less than the mix asphalt material of 1mm and processes by the following method: first with common crusher, pulverize the honest rock asphalt raw ore of cloth, obtain the rock asphalt particle that diameter is less than 10mm; Then rock asphalt particle and hot heavy traffic paving asphalt are carried out to break process by hot method crusher, obtain the mix asphalt material that diameter is less than 1mm; More specifically, the temperature of described hot heavy traffic paving asphalt is 150 ℃～190 ℃; Described hot method crusher adopts and comprises that the composite breaking method of pulverizing, stirring and high speed shear carries out break process to raw material.
The above-mentioned breaking method that the honest rock asphalt raw ore of cloth is adopted is also emphasis of the present invention, because the honest rock asphalt raw ore of cloth hardness is very big, the common crusher of China can not be less than 1mm by the honest rock asphalt crushing raw ore of cloth to diameter at all.
In described step (2), adopt two emulsion tanks, by diameter, be that the mix asphalt material that is less than 1mm is sent in one of them emulsion tank, mix asphalt material heats by outside circulating heater in emulsion tank, the temperature range of heating is 140 ℃～200 ℃, by stirring, complete homogeneous, dispersion, emulsification, ripening process, whole process is 15～30 minutes simultaneously; Mix asphalt material after emulsification maturation grinds with high-speed grinder, and two tank alternations complete a working cycle.
Hot method crusher of the present invention comprises power set and shredder assembly, described shredder assembly comprises housing and main shaft, the upper end of described housing is provided with the first opening for feed, in described housing, be provided with and be with meshed separated material cylinder, described main shaft is placed in described separated material cylinder, in described separated material cylinder, form inner chamber, described inner chamber and described the first feeding inlet, between described separated material cylinder and described inner walls, form exocoel, the sidewall of described housing is provided with the second opening for feed, described exocoel and described the second feeding inlet, the upper end of described main shaft is connected with the clutch end of described power set through described housing, the epimere of described main shaft is provided with shredding unit, the stage casing of described main shaft is provided with whipping appts, the hypomere of described main shaft is provided with Moving plate, on the circumference of described Moving plate upper surface, be evenly provided with a plurality of Moving plate teeth, the position that is positioned at described exocoel lower end on the inwall of described housing is provided with quiet dish, the circumference of described quiet dish lower surface is provided with the quiet dish tooth that a plurality of and described Moving plate tooth coordinates.
In working process, shredding unit is pulverized the rock asphalt particle of bulk, and whipping appts fully mixes hot heavy traffic paving asphalt and Bu Dun rock asphalt, and extruding downwards, the Moving plate of main shaft bottom and quiet dish agree with mutually, to mix asphalt material high velocity impact, shearing, reach object broken and that mutually merge.The gap of agreeing with between Moving plate and quiet dish is exactly the size of discharging-material size, regulates gap just can adjust the size of material granularity.
Particularly, described shredding unit is a plurality of tups; Described whipping appts is screw-blade.
Further, described hot method crusher also comprises frame, and described power set and described shredder assembly are all installed in described frame, and described power set comprises motor and driving wheel, the belt wheel of described motor is connected by belt with described driving wheel, and described driving wheel is connected with described main shaft.
Beneficial effect of the present invention is:
By method of the present invention, fusing point can be added to modification temperature in the heavy traffic paving asphalt below 190 ℃ higher than the honest rock asphalt particle of cloth of 200 ℃, finally obtain high performance modifying asphalt.Hot method crusher of the present invention utilizes shredding unit to realize the pulverizing to raw material, utilize whipping appts to realize the stirring to raw material, utilize Moving plate and quiet dish to realize the high speed shear of raw material, grinding, finally reach to the honest rock asphalt of natural cloth is realized efficiency crushing to diameter 1mm and obtained carrying out with hot heavy traffic paving asphalt the object of the mix asphalt material of hot method dissolving.Because the main component of breeze in the honest rock asphalt of cloth is oil soluble limestone, not only fineness is very thin, and there is the ability of goodish absorption pitch, have and strengthen pitch and the adhering effect of gathering materials, thereby make gained modifying asphalt of the present invention have high work-ing life, high stability, high resistance damage by water and the ability of very strong resistance to microbial attack, very high fatigue resistance, the bituminous pavement property of its making is significantly improved.
Accompanying drawing explanation
Fig. 1 is one of schema that utilizes the method that the honest rock asphalt of cloth produces modifying asphalt of the present invention;
Fig. 2 is two of the schema that utilizes the method that the honest rock asphalt of cloth produces modifying asphalt of the present invention;
Fig. 3 is the structural representation of the assembly line equipment that schema is corresponding described in Fig. 2;
Fig. 4 is the main TV structure schematic diagram of hot method crusher of the present invention;
Fig. 5 is the main sectional view of the shredder assembly of hot method crusher of the present invention;
Fig. 6 is the Moving plate of hot method crusher of the present invention and the main sectional view of quiet dish;
Fig. 7 is the upward view of the quiet dish of hot method crusher of the present invention;
Fig. 8 is the vertical view of the Moving plate of hot method crusher of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described in detail:
With two embodiment, the method for utilizing the honest rock asphalt of cloth to produce modifying asphalt of the present invention is specifically described below:
Embodiment 1:
As shown in Figure 1, the method for utilizing the honest rock asphalt of cloth to produce modifying asphalt of the present invention, comprises the following steps:
(1) after the rock asphalt particle that diameter is less than to 1mm mixes with hot heavy traffic paving asphalt, obtain the mix asphalt material that diameter is less than 1mm, the amount of described hot heavy traffic paving asphalt is can make described rock asphalt particle flow, non-caked being limited; In said process, by charging equipment and measurement controller, realize the feed of rock asphalt particle and hot heavy traffic paving asphalt and mix; The temperature of hot heavy traffic paving asphalt is 150 ℃～190 ℃, specifically can be other temperature in 150 ℃, 155 ℃, 160 ℃, 165 ℃, 170 ℃, 175 ℃, 180 ℃, 185 ℃, 190 ℃ or 150 ℃～190 ℃, only otherwise higher than 190 ℃; Diameter is less than the rock asphalt particle of 1mm and may the honest rock asphalt raw ore of cloth is processed and be obtained by external disintegrating apparatus, and concrete source does not repeat them here.
(2) to diameter, be that the mix asphalt material that is less than 1mm carries out emulsification and grinding, obtain fineness and be not less than 200 object modifying asphalt material, in this process, adopt two emulsion tanks, by diameter, be that the mix asphalt material that is less than 1mm is sent in one of them emulsion tank, mix asphalt material heats by outside circulating heater in emulsion tank, the temperature range of heating is 140 ℃～200 ℃, specifically can be 140 ℃, 145 ℃, 150 ℃, 155 ℃, 160 ℃, 165 ℃, 170 ℃, 175 ℃, 180 ℃, 185 ℃, 190 ℃, 195 ℃, other temperature in 200 ℃ or 140 ℃～200 ℃, by stirring, complete homogeneous simultaneously, disperse, emulsification, ripening process, whole process is 15～30 minutes, specifically can be 15 minutes, 20 minutes, 25 minutes, in 30 minutes or 15～30 minutes At All Other Times, mix asphalt material after emulsification maturation grinds with high-speed grinder, and two tank alternations complete a working cycle, and finally obtaining fineness, to be not less than 200 object modifying asphalt material be cloth in Fig. 1 rock modifying asphalt that pauses, in Fig. 1, also show the heat exchanging apparatus of emulsion tank outside and the schematic block diagram of cycle control.
(3) modifying asphalt material is allocated by Ordinary fruit quality, obtains satisfactory modifying asphalt.
Embodiment 2:
As shown in Figures 2 and 3, the another kind of method of utilizing the honest rock asphalt of cloth to produce modifying asphalt of the present invention, comprises the following steps:
(1) with common crusher, pulverize the honest rock asphalt raw ore of cloth, obtain the rock asphalt particle that diameter is less than 10mm, in Fig. 2, represent to adopt common impact crusher to carry out the fragmentation of rock asphalt raw ore;
(2) rock asphalt particle is quantitatively transported in hot method crusher 6 by belt pulley 3, screw lifting transfer roller 4 and electronic measurement transfer roller 5, to send in hot method crusher 6 through the hot heavy traffic paving asphalt of asphalt flow meter 1 metering (being the measure control in Fig. 2) simultaneously, the amount of hot heavy traffic paving asphalt is can make rock asphalt particle flow, non-caked being limited, hot method crusher 6 comprises that the composite breaking method of pulverizing, stirring and high speed shear carries out break process to raw material, obtains the mix asphalt material that diameter is less than 1mm; In this step, the temperature of hot heavy traffic paving asphalt is 150 ℃～190 ℃, specifically can be other temperature in 150 ℃, 155 ℃, 160 ℃, 165 ℃, 170 ℃, 175 ℃, 180 ℃, 185 ℃, 190 ℃ or 150 ℃～190 ℃, only otherwise higher than 190 ℃;
(3) to diameter, be that the mix asphalt material that is less than 1mm carries out emulsification and grinding, obtain fineness and be not less than 200 object modifying asphalt material, concrete grammar is: on the pipeline between bitumenpump 7 and the first emulsion tank 8, the first pneumavalve 10 is installed, on the pipeline between bitumenpump 7 and the second emulsion tank 9, the second pneumavalve 11 is installed, first mix asphalt material is first sent into the first emulsion tank 8 by bitumenpump 7, mix asphalt is well heater 21 and recycle pump 22 heating by outside circulating heater in the first emulsion tank 8, complete homogeneous, disperse, emulsification, ripe, the temperature range of heating is 140 ℃～200 ℃, specifically can be 140 ℃, 145 ℃, 150 ℃, 155 ℃, 160 ℃, 165 ℃, 170 ℃, 175 ℃, 180 ℃, 185 ℃, 190 ℃, 195 ℃, other temperature in 200 ℃ or 140 ℃～200 ℃, be 15～30 minutes heat-up time, specifically can be 15 minutes, 20 minutes, 25 minutes, in 30 minutes or 15～30 minutes At All Other Times, mix asphalt material after emulsification grinds with high-speed grinder 20, then utilize the second emulsion tank 9 second emulsion tanks 9 to carry out and upper identical process, two tank alternations, finally continuing to obtain fineness, to be not less than 200 object modifying asphalt material be cloth in Fig. 2 rock modifying asphalt that pauses, in above-mentioned emulsification and grinding plant, the first emulsion tank 8 is provided with the first average stirrer 23 above, the second average stirrer 24 is installed above, the 3rd pneumavalve 16 is installed on the pipeline between the first emulsion tank 8 and high-speed grinder 20, the 4th pneumavalve 19 is installed on the pipeline between the second emulsion tank 9 and high-speed grinder 20, the first emulsion tank 8 is also provided with another discharge nozzle that the 5th pneumavalve 12 is installed and is connected with total discharge nozzle 25, the second emulsion tank 9 is also provided with another discharge nozzle that the 6th pneumavalve 13 is installed and is connected with total discharge nozzle 25, the 7th pneumavalve 17 is installed on the circulation discharge nozzle of the first emulsion tank 8, the 8th pneumavalve 14 is installed on the recycle feed pipe of the first emulsion tank 8, the 9th pneumavalve 18 is installed on the circulation discharge nozzle of the second emulsion tank 9, the tenth pneumavalve 15 is installed on the recycle feed pipe of the second emulsion tank 9, on total discharge nozzle 25, the 11 pneumavalve 26 is installed, total discharge nozzle 25 mix asphalt is out modifying asphalt material, the concrete fineness of modifying asphalt material can realize by controlling each pneumavalve.
(4) modifying asphalt material is allocated by Ordinary fruit quality, obtains satisfactory modifying asphalt, and concrete grammar is: modifying asphalt material is sent into blend tank 27 by total discharge nozzle 25 and allocated with other pitch, obtains satisfactory modifying asphalt; Blend tank 27 is provided with stirrer 28 above and for the opening for feed 29 of other pitch.
As shown in Figure 4, hot method crusher of the present invention comprises frame 30, power set 32 and shredder assembly 31, power set 32 and shredder assembly 31 are all installed in frame 30, and power set 32 comprises motor 36 and driving wheel 33, and the belt wheel 35 of motor 36 is connected by belt 34 with driving wheel 33.
As shown in Figure 3, shredder assembly 31 comprises housing 37 and main shaft 38, the upper end of housing 37 is provided with the first opening for feed 39, in housing 37, be provided with and be with meshed separated material cylinder 44, main shaft 38 is placed in separated material cylinder 44, the interior formation inner chamber 46 of separated material cylinder 44, inner chamber 46 communicates with the first opening for feed 39, between the inwall of separated material cylinder 44 and housing 37, form exocoel 47, the sidewall of housing 37 is provided with the second opening for feed 45, exocoel 47 communicates with the second opening for feed 45, the upper end of main shaft 38 is connected with driving wheel 33 through housing 37, the epimere of main shaft 38 is provided with tup 41, tup 41 also can be other shredding unit, the stage casing of described main shaft is provided with screw-blade 40, screw-blade 40 can be also other whipping appts, the hypomere of main shaft 38 is provided with Moving plate 43, the position that is positioned at exocoel 47 lower ends on the inwall of housing 37 is provided with quiet dish 42, as shown in Figure 4, Figure 5 and Figure 6, be evenly provided with a plurality of Moving plate teeth 49 on the circumference of Moving plate 43 upper surfaces, the circumference of quiet dish 42 lower surfaces is provided with a plurality of quiet dish teeth 48 that coordinate with Moving plate tooth 49.Quiet dish tooth 48 and Moving plate tooth 49 have the gap of 0.1-3mm each other, depending on its discharging-material size, a Moving plate 43 and a quiet dish 42 form one group of sound dish, cutting out section can be comprised of one group of sound dish, also can be in series by the sound dish of organizing multiple gap more, there is shown one group of sound dish.
As shown in Figures 2 and 3, in working process, motor 36 drives main shaft 38 high speed rotating, the heavy traffic paving asphalt of heating enters exocoel 47 by the second opening for feed 45, with the honest rock asphalt particle of sticking cloth, from the first opening for feed 39, enter the inner chamber 46 in separated material cylinder 44, by tup 41, the rock asphalt of bulk is smashed, the rock asphalt of smashing is subject to the extruding of screw-blade 40 and the power that produces due to screw-blade 40 is fully mixed hot heavy traffic paving asphalt and rock asphalt, and extruding downwards, the quiet dish tooth 48 of the Moving plate tooth 49 of the Moving plate 43 of bottom and quiet dish 42 agrees with mutually, to rock asphalt high velocity impact, shear, gap between Moving plate tooth 49 and quiet dish tooth 48 is exactly the size of discharging-material size, regulate gap just can adjust the size of material granularity.
Claims (4)
1. a hot method crusher, comprise power set and shredder assembly, it is characterized in that: described shredder assembly comprises housing and main shaft, the upper end of described housing is provided with the first opening for feed, in described housing, be provided with and be with meshed separated material cylinder, described main shaft is placed in described separated material cylinder, in described separated material cylinder, form inner chamber, described inner chamber and described the first feeding inlet, between described separated material cylinder and described inner walls, form exocoel, the sidewall of described housing is provided with the second opening for feed, described exocoel and described the second feeding inlet, the upper end of described main shaft is connected with the clutch end of described power set through described housing, the epimere of described main shaft is provided with shredding unit, the stage casing of described main shaft is provided with whipping appts, the hypomere of described main shaft is provided with Moving plate, on the circumference of described Moving plate upper surface, be evenly provided with a plurality of Moving plate teeth, the position that is positioned at described exocoel lower end on the inwall of described housing is provided with quiet dish, the circumference of described quiet dish lower surface is provided with the quiet dish tooth that a plurality of and described Moving plate tooth coordinates.
2. hot method crusher according to claim 1, is characterized in that: described shredding unit is a plurality of tups.
3. hot method crusher according to claim 1, is characterized in that: described whipping appts is screw-blade.
4. hot method crusher according to claim 1, it is characterized in that: described hot method crusher also comprises frame, described power set and described shredder assembly are all installed in described frame, described power set comprises motor and driving wheel, the belt wheel of described motor is connected by belt with described driving wheel, and described driving wheel is connected with described main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210449382.7A CN102964852B (en) | 2012-11-12 | 2012-11-12 | Method for producing modified asphalt by using Buton rock asphalt and hot method crusher |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210449382.7A CN102964852B (en) | 2012-11-12 | 2012-11-12 | Method for producing modified asphalt by using Buton rock asphalt and hot method crusher |
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| CN102964852A CN102964852A (en) | 2013-03-13 |
| CN102964852B true CN102964852B (en) | 2014-11-12 |
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| CN201210449382.7A Expired - Fee Related CN102964852B (en) | 2012-11-12 | 2012-11-12 | Method for producing modified asphalt by using Buton rock asphalt and hot method crusher |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103819913B (en) * | 2014-02-21 | 2016-05-04 | 淄博京源新材料科技有限公司 | High performance modified bitumen and preparation method thereof and device |
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