CN106350089A - Process for preparing asphalt spheres by aid of continuous methods - Google Patents
Process for preparing asphalt spheres by aid of continuous methods Download PDFInfo
- Publication number
- CN106350089A CN106350089A CN201610794428.7A CN201610794428A CN106350089A CN 106350089 A CN106350089 A CN 106350089A CN 201610794428 A CN201610794428 A CN 201610794428A CN 106350089 A CN106350089 A CN 106350089A
- Authority
- CN
- China
- Prior art keywords
- colophonium
- naphthalene
- asphalt
- heating kettle
- bitumen ball
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/14—Solidifying, Disintegrating, e.g. granulating
- C10C3/16—Solidifying, Disintegrating, e.g. granulating by direct contact with liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Working-Up Tar And Pitch (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a process for preparing asphalt spheres by the aid of continuous methods. The process includes adding asphalt and naphthalene into a stirring and heating kettle to obtain molten modified asphalt and extruding the molten modified asphalt from extrusion holes in extrusion boards; allowing the extruded molten modified asphalt to stay in the air for 1-30 s, then feeding the extruded molten modified asphalt into water, allowing the extruded molten modified asphalt to stay for 300-900 s and then screening the extruded molten modified asphalt to obtain the asphalt spheres; adding asphalt and naphthalene into the stirring and heating kettle according to an amount of 1/5-1/3 of the sum of the weights of the initial asphalt and the initial naphthalene under the condition of non-stop operation when the weight of each prepared asphalt sphere accounts for 1/4-2/3 of the sum of the weights of the asphalt and the naphthalene in the stirring and heating kettle, supplementing the extruded molten modified asphalt so at to allow integral operation to be continuous and obtain the continuous asphalt spheres. The process has the advantages of high productivity and stable performance.
Description
Technical field
The invention belongs to a kind of preparation technology of bitumen ball, a kind of specifically continuity method preparation bitumen ball technique.
Background technology
The preparation process that spheric active carbon is related to series of complex is prepared for raw material with Colophonium, in particular by suspension side
The grade bitumen ball of method preparation needs vertical Alternative step, and wherein balling-up is the key restricting its large-scale production.
At present, in existing patent report, the method for preparation bitumen ball is almost all using the method for autoclave or in container
Interior stirring Colophonium obtains corresponding bitumen ball: such as the Chinese invention patent 03178572 " asphalt-base globular active carbon rich in mesopore
Preparation method ", Chinese invention patent 200410100531 " method preparing ball shape active carbon ", Chinese invention patent
A kind of 200610127621 " methods preparing the low ball shape active carbon of content of beary metal ", Chinese invention patent 200810035853
" a kind of preparation method of nitrogen-containing asphalt-base spherical activated ", a kind of Chinese invention patent cn201010143602.4 " bitumen ball
Preparation method ", the Chinese invention patent cn 201310657377.x technology of bitumen ball " one-step method low energy consumption prepare " and
Chinese invention patent 201210317727 " the low power consuming preparation method of asphalt-base spherical activated carbon " etc. is all using step side
Preparing bitumen ball, this will the impact production capacity of bitumen ball and stablizing of performance for method.
Content of the invention
It is an object of the invention to provide a kind of production capacity is high, the continuity method preparation bitumen ball technique of stable performance.
The preparation technology of the present invention, comprises the steps:
(1) press Colophonium: naphthalene weight ratio is for 1:(0.2-0.5), Colophonium and naphthalene are added in agitating heating kettle, 250-350 DEG C, stir
Under the conditions of mix rotating speed is 50-300 rev/min, obtain melt modification Colophonium；
(2) by melt modification Colophonium in temperature 80-200 DEG C, 10-80kg/cm2Pressure under 0.8-3mm from extrusion board
Extrusion cavities are extruded；
(3) the melt modification Colophonium after extruding enters in water after in the air stops 1-30s, then stops 300-900s, that is, obtain
Bitumen ball；
(4) when prepared bitumen ball is the 1/4-2/3 of Colophonium and naphthalene weight sum in agitating heating kettle, in aforesaid operations not
In the case of stopping, by initial Colophonium and naphthalene weight sum 1/5-1/3, by weight than for 1:(0.2-0.5) Colophonium and naphthalene add
To in agitating heating kettle, to supplement the melt modification Colophonium of extrusion, it is achieved in that the seriality of whole operation, obtain continuous drip
Blue or green ball；
(5) repeat the operation of above-mentioned (1)-(4) step, then can continuously obtain bitumen ball.
Colophonium as above is 10-250 mesh, the hard pitch that 180～290 DEG C of softening point.
The present invention compared with prior art has the advantage that
1 present invention is continuously to go out ball it is achieved that from the continuous preparation of pitch particle to Colophonium bead, while production capacity is lifted,
Operating cost can be significantly reduced；
2 shrink, due to after the modified pitch extrusion after melting, the cooling passing through shower water and water after balling-up, so in atmosphere
Ensure that the quantity of contained naphthalene in modified pitch, also ensure that stablizing of subsequent product performance simultaneously；
Colophonium first need not be melted with naphthalene by 3 present invention as what numerous patents were mentioned, and then crushing and screening after its cooling, both protected
Demonstrate,prove the quantity of naphthalene, also significantly reduce operating procedure and corresponding equipment simultaneously；
4 due to through the crushing and screening of modified pitch, but directly extrudes as carrying out balling-up after bar, thus will
Whole modified pitch is utilized, and unlike the Colophonium of a small amount of suitable particle size only can be utilized in numerous patents；
5 are obtained by extruding due to modified pitch, and the sphere diameter control of therefore its balling-up is more accurate；
Dispersant, the use cost that dispersant can be reduced and the pollution abatement costs thereby resulting in is not needed in 6 present invention.
Brief description
Fig. 1 is the process chart of the present invention.
As illustrated, 1 is loading hopper, 2 is screw(-type) feeder, and 3 is agitating heating kettle, and 4 is pitch pressurization pump, and 5 is material extrusion
Cylinder, 6 is overflow line, and 7 is balling-up kettle, and 8 is spray head, and 9 is screen frame, and 10 is tank, and 11 is water pump；M is motor, and v is valve,
T is temperature survey, and p is pressure measxurement.
Specific embodiment
The specific operation process of the present invention is as follows:
It is first turned on valve v1 and self-conveyor feed 2, the mixture of the Colophonium in loading hopper 1 and naphthalene is added through self-conveyor feed 2
Enter in agitating heating kettle 3, close valve v1 and self-conveyor feed 2 afterwards, the heat riser opening agitating heating kettle 3 is risen
Temperature, during the constant temperature zone of setting to be achieved, opens stirring, and a period of time to be mixed makes material be sufficiently mixed reaction and obtains melt modification
Colophonium, opens valve v2 and Colophonium booster pump 4 afterwards, by melt modification bitumenpump to extruding in tank 5, by extruding below tank 5
Extrusion board hole, melt modification Colophonium is extruded as bar, meanwhile, opens valve v3 and spray pump 11, through shower nozzle 8
Make into the water in spherical tank 7 and reach degree of overflow, the water that overflow goes out flows to the bead tank 10, after such balling-up from overflow pipe 6
Enter in screen frame 9 through valve v3, after taking-up, be bitumen ball.
When prepared bitumen ball is the initially 1/4-2/3 of Colophonium and naphthalene weight sum in agitating heating kettle, above-mentioned
In the case of operation is non-stop, opens valve v1 and self-conveyor feed 2, by initial Colophonium and naphthalene weight sum 1/5-1/3, will weigh
Amount is than being 1:(0.2-0.5) Colophonium and naphthalene pass through loading hopper 1 and self-conveyor feed 2 and be added in agitating heating kettle 3, supplement extrusion
Colophonium and naphthalene mixture, so can achieve whole operation seriality, obtain continuous bitumen ball.
Embodiment 1
(1) press Colophonium: naphthalene weight ratio for 1:0.2, the Colophonium of 250 180 DEG C of softening points of mesh and naphthalene is added in agitating heating kettle 3,
Under the conditions of 250 DEG C, speed of agitator are for 300 revs/min, obtain melt modification Colophonium；
(2) by melt modification Colophonium in 200 DEG C of temperature, 80kg/cm2Pressure under from extrusion cavities are for the extrusion board of 3mm squeeze
Go out；
(3) the melt modification Colophonium after extruding enters in water after in the air stops 30s, then stops 900s, obtains bitumen ball.
When prepared bitumen ball be in agitating heating kettle initially Colophonium and naphthalene weight sum 1/4 when, in aforesaid operations
In the case of non-stop, by initial Colophonium and naphthalene weight sum 1/5, weight be added to stirring than the Colophonium for 1:0.2 and naphthalene and add
In hot kettle 3, supplement the melt modification Colophonium of extrusion, so can achieve the seriality of whole operation, obtain continuous bitumen ball.Instead
Repeat aforesaid operations again, then can continuously obtain bitumen ball.
The sphere diameter of gained bitumen ball is between 1.9-2.8mm.
Embodiment 2
(1) press Colophonium: naphthalene weight ratio for 1:0.5, the Colophonium of 10 290 DEG C of softening points of mesh and naphthalene is added in agitating heating kettle 3,
350 DEG C, speed of agitator be 50 revs/min under the conditions of, obtain melt modification Colophonium；
(2) by melt modification Colophonium in 80 DEG C of temperature, squeeze from extrusion cavities are for the extrusion board of 0.8mm under the pressure of 10kg/cm2
Go out；
(3) the melt modification Colophonium after extruding enters in water after in the air stops 1s, then stops 300s, obtains bitumen ball.
When prepared bitumen ball be in agitating heating kettle initially Colophonium and naphthalene weight sum 2/3 when, in aforesaid operations
In the case of non-stop, by initial Colophonium and naphthalene weight sum 1/3, weight be added to stirring than the Colophonium for 1:0.5 and naphthalene and add
In hot kettle 3, supplement the melt modification Colophonium of extrusion, so can achieve the seriality of whole operation, obtain continuous bitumen ball.Instead
Repeat aforesaid operations again, then can continuously obtain bitumen ball.
The sphere diameter of gained bitumen ball is between 0.3-0.8mm.
Embodiment 3
(1) press Colophonium: naphthalene weight ratio for 1:0.3, the Colophonium of 200 220 DEG C of softening points of mesh and naphthalene is added in agitating heating kettle 3,
Under the conditions of 300 DEG C, speed of agitator are for 200 revs/min, obtain melt modification Colophonium；
(2) by melt modification Colophonium in 150 DEG C of temperature, squeeze from extrusion cavities are for the extrusion board of 1.5mm under the pressure of 50kg/cm2
Go out；
(3) the melt modification Colophonium after extruding enters in water after in the air stops 10s, then stops 500s, obtains bitumen ball.
When prepared bitumen ball be in agitating heating kettle 3 initially Colophonium and naphthalene weight sum 1/2 when, in aforesaid operations
In the case of non-stop, by initial Colophonium and naphthalene weight sum 1/4, weight be added to stirring than the Colophonium for 1:0.3 and naphthalene and add
In hot kettle 3, supplement the melt modification Colophonium of extrusion, so can achieve the seriality of whole operation, obtain continuous bitumen ball.Instead
Repeat aforesaid operations again, then can continuously obtain bitumen ball.
The sphere diameter of gained bitumen ball is between 1.0-1.4mm.
Embodiment 4
(1) press Colophonium: naphthalene weight ratio for 1:0.4, the Colophonium of 30 270 DEG C of softening points of mesh and naphthalene is added in agitating heating kettle 3,
330 DEG C, speed of agitator be 150 revs/min under the conditions of, obtain melt modification Colophonium；
(2) by melt modification Colophonium in 100 DEG C of temperature, squeeze from extrusion cavities are for the extrusion board of 2mm under the pressure of 30kg/cm2
Go out；
(3) the melt modification Colophonium after extruding enters in water after in the air stops 20s, then stops 400s, obtains bitumen ball.
When prepared bitumen ball be in agitating heating kettle 3 initially Colophonium and naphthalene weight sum 1/3 when, in aforesaid operations
In the case of non-stop, by initial Colophonium and naphthalene weight sum 1/4, weight be added to stirring than the Colophonium for 1:0.4 and naphthalene and add
In hot kettle 3, supplement the melt modification Colophonium of extrusion, so can achieve the seriality of whole operation, obtain continuous bitumen ball.Instead
Repeat aforesaid operations again, then can continuously obtain bitumen ball.
The sphere diameter of gained bitumen ball is between 1.3-1.8mm.
Embodiment 5
(1) press Colophonium: naphthalene weight ratio for 1:0.25, the Colophonium of 80 250 DEG C of softening points of mesh and naphthalene is added in agitating heating kettle 3,
Under the conditions of 280 DEG C, speed of agitator are for 250 revs/min, obtain melt modification Colophonium；
(2) by melt modification Colophonium in 180 DEG C of temperature, squeeze from extrusion cavities are for the extrusion board of 1mm under the pressure of 60kg/cm2
Go out；
(3) the melt modification Colophonium after extruding enters in water after in the air stops 15s, then stops 700s, obtains bitumen ball.
When prepared bitumen ball be in agitating heating kettle 3 initially Colophonium and naphthalene weight sum 2/3 when, in aforesaid operations
In the case of non-stop, by initial Colophonium and naphthalene weight sum 1/3, weight be added to stirring than the Colophonium for 1:0.25 and naphthalene and add
In hot kettle 3, supplement the melt modification Colophonium of extrusion, so can achieve the seriality of whole operation, obtain continuous bitumen ball.Instead
Repeat aforesaid operations again, then can continuously obtain bitumen ball.
The sphere diameter of gained bitumen ball is between 0.4-0.8mm.
Embodiment 6
(1) press Colophonium: naphthalene weight ratio for 1:0.35, the Colophonium of 150 230 DEG C of softening points of mesh and naphthalene is added in agitating heating kettle 3,
Under the conditions of 260 DEG C, speed of agitator are for 80 revs/min, obtain melt modification Colophonium；
(2) by melt modification Colophonium in 90 DEG C of temperature, squeeze from extrusion cavities are for the extrusion board of 2.5mm under the pressure of 70kg/cm2
Go out；
(3) the melt modification Colophonium after extruding enters in water after in the air stops 25s, then stops 600s, obtains bitumen ball.
When prepared bitumen ball be in agitating heating kettle 3 initially Colophonium and naphthalene weight sum 1/2 when, in aforesaid operations
In the case of non-stop, by initial Colophonium and naphthalene weight sum 1/3, weight be added to stirring than the Colophonium for 1:0.35 and naphthalene and add
In hot kettle 3, supplement the melt modification Colophonium of extrusion, so can achieve the seriality of whole operation, obtain continuous bitumen ball.Instead
Repeat aforesaid operations again, then can continuously obtain bitumen ball.
The sphere diameter of gained bitumen ball is between 1.8-2.4mm.
Claims (2)
1. a kind of continuity method preparation bitumen ball technique is it is characterised in that comprise the steps:
(1) press Colophonium: naphthalene weight ratio is for 1:(0.2-0.5), Colophonium and naphthalene are added in agitating heating kettle, 250-350 DEG C, stir
Under the conditions of mix rotating speed is 50-300 rev/min, obtain melt modification Colophonium；
(2) by melt modification Colophonium in temperature 80-200 DEG C, 10-80kg/cm2Pressure under 0.8-3mm from extrusion board
Extrusion cavities are extruded；
(3) the melt modification Colophonium after extruding enters in water after in the air stops 1-30s, then stops 300-900s, obtains drip
Blue or green ball；
(4) when prepared bitumen ball is the 1/4-2/3 of Colophonium and naphthalene weight sum in agitating heating kettle, in aforesaid operations not
In the case of stopping, by initial Colophonium and naphthalene weight sum 1/5-1/3, by weight than for 1:(0.2-0.5) Colophonium and naphthalene add
To in agitating heating kettle, to supplement the melt modification Colophonium of extrusion, it is achieved in that the seriality of whole operation, obtain continuous drip
Blue or green ball；
(5) repeat the operation of above-mentioned (1)-(4) step, then continuously obtain bitumen ball.
2. a kind of continuity method prepares bitumen ball technique it is characterised in that described Colophonium is 10-250 as claimed in claim 1
Mesh, the hard pitch that 180～290 DEG C of softening point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610794428.7A CN106350089B (en) | 2016-08-30 | 2016-08-30 | Process for preparing asphalt balls by continuous method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610794428.7A CN106350089B (en) | 2016-08-30 | 2016-08-30 | Process for preparing asphalt balls by continuous method |
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| CN106350089A true CN106350089A (en) | 2017-01-25 |
| CN106350089B CN106350089B (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960408A (en) * | 2020-09-04 | 2020-11-20 | 湖南大学 | Efficient preparation method of mesophase pitch carbon microspheres |
| CN113201223A (en) * | 2021-03-19 | 2021-08-03 | 吴有文 | Layered winding type asphalt ball raw material processing device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1154953A (en) * | 1966-11-21 | 1969-06-11 | Permanite Ltd | Method of Manufacturing Mastic Asphalt |
| US4931231A (en) * | 1985-04-22 | 1990-06-05 | American Colloid Company | Method for manufacturing discrete pellets of asphaltic material |
| CN1222484A (en) * | 1990-12-21 | 1999-07-14 | 康诺科有限公司 | Solvated mesophase pitch articles and process for preparation of the same |
| CN103272533A (en) * | 2013-06-08 | 2013-09-04 | 中国科学院山西煤炭化学研究所 | Pitch sphere oxidative stabilization method |
| CN103289719A (en) * | 2013-06-08 | 2013-09-11 | 中国科学院山西煤炭化学研究所 | Process for preparing asphalt sphere |
| CN103695019A (en) * | 2013-12-09 | 2014-04-02 | 中国科学院山西煤炭化学研究所 | Low energy one-step method for preparing asphalt balls |
| CN103756706A (en) * | 2014-01-16 | 2014-04-30 | 神华集团有限责任公司 | Modified asphalt and preparation method thereof |
| CN104909365A (en) * | 2015-06-09 | 2015-09-16 | 中国科学院山西煤炭化学研究所 | Method for promoting asphalt sphere oxidation without melting |
-
2016
- 2016-08-30 CN CN201610794428.7A patent/CN106350089B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1154953A (en) * | 1966-11-21 | 1969-06-11 | Permanite Ltd | Method of Manufacturing Mastic Asphalt |
| US4931231A (en) * | 1985-04-22 | 1990-06-05 | American Colloid Company | Method for manufacturing discrete pellets of asphaltic material |
| CN1222484A (en) * | 1990-12-21 | 1999-07-14 | 康诺科有限公司 | Solvated mesophase pitch articles and process for preparation of the same |
| CN103272533A (en) * | 2013-06-08 | 2013-09-04 | 中国科学院山西煤炭化学研究所 | Pitch sphere oxidative stabilization method |
| CN103289719A (en) * | 2013-06-08 | 2013-09-11 | 中国科学院山西煤炭化学研究所 | Process for preparing asphalt sphere |
| CN103695019A (en) * | 2013-12-09 | 2014-04-02 | 中国科学院山西煤炭化学研究所 | Low energy one-step method for preparing asphalt balls |
| CN103756706A (en) * | 2014-01-16 | 2014-04-30 | 神华集团有限责任公司 | Modified asphalt and preparation method thereof |
| CN104909365A (en) * | 2015-06-09 | 2015-09-16 | 中国科学院山西煤炭化学研究所 | Method for promoting asphalt sphere oxidation without melting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960408A (en) * | 2020-09-04 | 2020-11-20 | 湖南大学 | Efficient preparation method of mesophase pitch carbon microspheres |
| CN113201223A (en) * | 2021-03-19 | 2021-08-03 | 吴有文 | Layered winding type asphalt ball raw material processing device |
| CN113201223B (en) * | 2021-03-19 | 2023-08-25 | 麻阳万兴沥青混凝土有限公司 | Layered rolling type asphalt ball raw material treatment device |
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| Publication number | Publication date |
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| CN106350089B (en) | 2021-10-26 |
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