CN106492961B - A kind of modified hybrid technique of rock asphalt fluid fine grinding - Google Patents
A kind of modified hybrid technique of rock asphalt fluid fine grinding Download PDFInfo
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- CN106492961B CN106492961B CN201610896252.6A CN201610896252A CN106492961B CN 106492961 B CN106492961 B CN 106492961B CN 201610896252 A CN201610896252 A CN 201610896252A CN 106492961 B CN106492961 B CN 106492961B
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- rock asphalt
- fine grinding
- rock
- activation
- hybrid technique
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
- Working-Up Tar And Pitch (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a kind of modified hybrid technique of rock asphalt fluid fine grinding, including the following steps: that rock asphalt is crushed to partial size by (1) is 5mm hereinafter, being dehydrated at 150~180 DEG C, activation, and controlling water content in dewatered rock asphalt is 5% or less；It (2) is -150 mesh or more shearing is milled to fineness at 150~180 DEG C by step (1) treated rock asphalt；(3) step (2) treated rock asphalt and matrix pitch is glued at 150~180 DEG C.The present invention passes through rock asphalt is broken, dehydration, activation processing, and hot fine grinding is carried out at high temperature, it is conducive to the fineness for improving rock asphalt, it is glued with matrix pitch at high temperature simultaneously, and then the glued degree between rock asphalt and matrix pitch is improved, be conducive to the modification power for giving full play to rock asphalt.
Description
Technical field
The present invention relates to the modified hybrid technologies of rock asphalt, more particularly, to a kind of modified mixing work of rock asphalt fluid fine grinding
Skill.
Background technique
Rock asphalt is that petroleum passes through the deposition up to 1 years, variation, in the comprehensive of heat, pressure, oxidation, catalyst, bacterium etc.
The bitumen for cooperating lower generation, is commonly used for matrix pitch modifying agent.Since rock asphalt is compared with coarse granule shape, and it is viscous
Property is stronger, and granular rock asphalt can not be finely ground to powdery, and when granular rock asphalt is as matrix pitch modifying agent,
Due to its can not fine grinding, cause its cannot preferably with matrix pitch gluing so that the modification power of rock asphalt can only play about
50% or so.
Summary of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, a kind of modified hybrid technique of rock asphalt fluid fine grinding is proposed,
The modification power for solving rock asphalt in the prior art plays low technical problem.
To reach above-mentioned technical purpose, technical solution of the present invention provides a kind of modified mixing work of rock asphalt fluid fine grinding
Skill includes the following steps:
(1) rock asphalt is crushed to partial size is 5mm hereinafter, being dehydrated at 150~180 DEG C, activation, and control dewatered
Water content is 5% or less in rock asphalt；
It (2) is -150 mesh or more shearing is milled to fineness at 150~180 DEG C by step (1) treated rock asphalt；
(3) step (2) treated rock asphalt and matrix pitch is glued at 150~180 DEG C.
2, the modified hybrid technique of rock asphalt fluid fine grinding according to claim 1, which is characterized in that the step
It (1) further include rock asphalt after activation being dried protection, water content is 3% or less in the rock asphalt under dry-run protection.
Preferably, the shearing rotating speed of cutting mill is 2000~2700 revs/min in the step (2).
Preferably, the gluing time of the step (3) is 9~12 minutes.
Preferably, the gluing time of the step (3) is 10 minutes.
Compared with prior art, the present invention is by rock asphalt is broken, dehydration, activation processing, and carries out heat at high temperature
Fine grinding is conducive to the fineness for improving rock asphalt, while glued with matrix pitch at high temperature, and then improves rock asphalt and matrix
Glued degree between pitch, is conducive to the modification power for giving full play to rock asphalt.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1:
The embodiment of the present invention 1 provides a kind of modified hybrid technique of rock asphalt fluid fine grinding, includes the following steps:
(1) rock asphalt is crushed to partial size is 5mm hereinafter, being dehydrated at 150~180 DEG C, activation, and control dewatered
Water content is 5% or less in rock asphalt；
Wherein, after rock asphalt activation, in order to avoid water content increases in rock asphalt, rock asphalt can be dried guarantor
It protects, the rock asphalt under dry-run protection can control its water content below 3%.
(2) the rock asphalt shearing after activation is milled to fineness is -150 mesh, and the temperature of cutting mill is 150~180 DEG C, shearing
Revolving speed is 2000~2700 revs/min；
(3) by after cutting mill rock asphalt and matrix pitch it is glued at 150~180 DEG C, gluing time 10 minutes.
Embodiment 2:
The embodiment of the present invention 2 provides a kind of modified hybrid technique of rock asphalt fluid fine grinding, includes the following steps:
(1) rock asphalt is crushed to partial size is 5mm hereinafter, being dehydrated at 150~180 DEG C, activation, and control dewatered
Water content is 5% or less in rock asphalt；
Wherein, after rock asphalt activation, in order to avoid water content increases in rock asphalt, rock asphalt can be dried guarantor
It protects, the rock asphalt under dry-run protection can control its water content below 3%.
(2) the rock asphalt shearing after activation is milled to fineness is -150 mesh, and the temperature of cutting mill is 150~180 DEG C, shearing
Revolving speed is 2000~2700 revs/min；
(3) by rock asphalt and the matrix pitch gluing at 150~180 DEG C after cutting mill, gluing time is 9 minutes.
Embodiment 3:
The embodiment of the present invention 3 provides a kind of modified hybrid technique of rock asphalt fluid fine grinding, includes the following steps:
(1) rock asphalt is crushed to partial size is 5mm hereinafter, being dehydrated at 150~180 DEG C, activation, and control dewatered
Water content is 5% or less in rock asphalt；
Wherein, after rock asphalt activation, in order to avoid water content increases in rock asphalt, rock asphalt can be dried guarantor
It protects, the rock asphalt under dry-run protection can control its water content below 3%.
(2) the rock asphalt shearing after activation is milled to fineness is -150 mesh, and the temperature of cutting mill is 150~180 DEG C, shearing
Revolving speed is 2000~2700 revs/min；
(3) by rock asphalt and the matrix pitch gluing at 150~180 DEG C after cutting mill, gluing time is 12 minutes.
Embodiment 4:
The embodiment of the present invention 4 provides a kind of modified hybrid technique of rock asphalt fluid fine grinding, includes the following steps:
(1) rock asphalt is crushed to partial size is 5mm hereinafter, being dehydrated at 150~180 DEG C, activation, and control dewatered
Water content is 5% or less in rock asphalt；
Wherein, after rock asphalt activation, in order to avoid water content increases in rock asphalt, rock asphalt can be dried guarantor
It protects, the rock asphalt under dry-run protection can control its water content below 3%.
(2) the rock asphalt shearing after activation is milled to fineness is -180 mesh, and the temperature of cutting mill is 150~180 DEG C, shearing
Revolving speed is 2000~2700 revs/min；
(3) by rock asphalt and the matrix pitch gluing at 150~180 DEG C after cutting mill, gluing time is 10 minutes.
Embodiment 5:
The embodiment of the present invention 4 provides a kind of modified hybrid technique of rock asphalt fluid fine grinding, includes the following steps:
(1) rock asphalt is crushed to partial size is 5mm hereinafter, being dehydrated at 150~180 DEG C, activation, and control dewatered
Water content is 5% or less in rock asphalt；
Wherein, after rock asphalt activation, in order to avoid water content increases in rock asphalt, rock asphalt can be dried guarantor
It protects, the rock asphalt under dry-run protection can control its water content below 3%.
(2) the rock asphalt shearing after activation is milled to fineness is -200 mesh, and the temperature of cutting mill is 150~180 DEG C, shearing
Revolving speed is 2000~2700 revs/min；
(3) by rock asphalt and the matrix pitch gluing at 150~180 DEG C after cutting mill, gluing time is 10 minutes.
Embodiment 6:
The embodiment of the present invention 6 provides a kind of modified hybrid technique of rock asphalt fluid fine grinding, includes the following steps:
(1) rock asphalt is crushed to partial size is 5mm hereinafter, being dehydrated at 150~180 DEG C, activation, and control dewatered
Water content is 5% or less in rock asphalt；
Wherein, after rock asphalt activation, in order to avoid water content increases in rock asphalt, rock asphalt can be dried guarantor
It protects, the rock asphalt under dry-run protection can control its water content below 3%.
(2) the rock asphalt shearing after activation is milled to fineness is -325 mesh, and the temperature of cutting mill is 150~180 DEG C, shearing
Revolving speed is 2000~2700 revs/min；
(3) by rock asphalt and the matrix pitch gluing at 150~180 DEG C after cutting mill, gluing time is 10 minutes.
Comparative test
Under the same conditions, made of the bituminous concrete and 1~6 gluing of the present embodiment that processing according to a conventional method are formed
The bituminous concrete that pitch is made is tested as follows:
1, freeze-thaw split intensity ratio test, specific test parameters such as the following table 1: where the present embodiment 1~6 and conventional method
In the bitumen aggregate ratio of bituminous concrete be 5.1%, maximum theoretical relative density be 2.536g/cm3。
Table 1
From the data in table 1, it can be seen that under the same conditions, the bituminous concrete of the preparation of pitch made of 1~6 gluing of the present embodiment
With better freeze-thaw split intensity and higher Ratio of split strength, i.e. prepared by the daily pitch of the glued volume of the present embodiment 1~6
The water stability of bituminous concrete is more preferable, has better performance.
2, immersion Marshall test, specific test parameters such as the following table 2: where in the present embodiment 1~6 and conventional method
The bitumen aggregate ratio of bituminous concrete is that 5.1%, maximum theoretical relative density is 2.536g/cm3。
Table 2
From the data in table 2, it can be seen that the properties ginseng of the bituminous concrete of the preparation of pitch made of 1~6 gluing of the present embodiment
Number is apparently higher than the bituminous concrete of conventional method preparation.
3, wheel tracking test, specific test parameters such as the following table 3.
Table 3 (60 DEG C of test temperature, tire pressure 0.7Mpa)
From the data in table 3, it can be seen that under the same conditions, the bituminous concrete of the preparation of pitch made of 1~6 gluing of the present embodiment
Dynamic stability it is obviously more preferable, and be much higher than existing technical requirements.
Compared with prior art, the present invention is by rock asphalt is broken, dehydration, activation processing, and carries out heat at high temperature
Fine grinding is conducive to the fineness for improving rock asphalt, while glued with matrix pitch at high temperature, and then improves rock asphalt and matrix
Glued degree between pitch, is conducive to the modification power for giving full play to rock asphalt, and then is conducive to improve the drip of subsequent preparation
The properties of green concrete, and preparation process of the invention is simple to operation, effect is obvious, suitable for being widely popularized.
The above described specific embodiments of the present invention are not intended to limit the scope of the present invention..Any basis
Any other various changes and modifications that technical concept of the invention is made should be included in the guarantor of the claims in the present invention
It protects in range.
Claims (4)
1. a kind of modified hybrid technique of rock asphalt fluid fine grinding, which comprises the steps of:
(1) rock asphalt is crushed to partial size is 5mm hereinafter, being dehydrated at 150~180 DEG C, activation, and controls dewatered rock drip
Water content is 5% hereinafter, protection is dried to rock asphalt after activation, water content is in the rock asphalt under dry-run protection in blueness
3% or less；
(2) by step (1), treated that rock asphalt shears at 150~180 DEG C that be milled to fineness be -150 mesh or more；
(3) step (2) treated rock asphalt and matrix pitch are fused at 150~180 DEG C.
2. the modified hybrid technique of rock asphalt fluid fine grinding according to claim 1, which is characterized in that in the step (2)
The shearing rotating speed of cutting mill is 2000~2700 revs/min.
3. the modified hybrid technique of rock asphalt fluid fine grinding according to claim 2, which is characterized in that the step (3)
Fusing the time is 9~12 minutes.
4. the modified hybrid technique of rock asphalt fluid fine grinding according to claim 1, which is characterized in that the step (3)
Fusing the time is 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610896252.6A CN106492961B (en) | 2016-10-12 | 2016-10-12 | A kind of modified hybrid technique of rock asphalt fluid fine grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610896252.6A CN106492961B (en) | 2016-10-12 | 2016-10-12 | A kind of modified hybrid technique of rock asphalt fluid fine grinding |
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| Publication Number | Publication Date |
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| CN106492961A CN106492961A (en) | 2017-03-15 |
| CN106492961B true CN106492961B (en) | 2019-07-19 |
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| CN201610896252.6A Active CN106492961B (en) | 2016-10-12 | 2016-10-12 | A kind of modified hybrid technique of rock asphalt fluid fine grinding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107057739A (en) * | 2017-04-18 | 2017-08-18 | 湖北正康天然沥青科技有限公司 | A kind of Low-temperature activation method of kir |
| CN107383903A (en) * | 2017-06-29 | 2017-11-24 | 安徽和轩岩沥青科技有限公司 | A kind of kir fluid fine grinding is modified hybrid technique |
| CN110684206B (en) * | 2019-11-27 | 2022-07-01 | 上海海事大学 | Preparation method of asphalt modified emulsified asphalt without sticking wheel rock |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100556550C (en) * | 2008-01-29 | 2009-11-04 | 方德铭 | High speed shearing grinder for modified bitumen |
| CN102408732B (en) * | 2011-09-28 | 2014-05-14 | 于漧 | Preparation method for artificially synthesizing lake asphalt |
| CN103252274A (en) * | 2012-02-21 | 2013-08-21 | 太仓液压元件有限公司 | Shearing mill heating system |
| CN202415460U (en) * | 2012-02-21 | 2012-09-05 | 太仓液压元件有限公司 | Modified asphalt production line |
| CN105062101A (en) * | 2015-08-07 | 2015-11-18 | 天津天合建岭路桥工程科技有限公司 | Novel flame retardant asphalt and preparation method thereof |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Yafei Inventor after: Shen Junqing Inventor after: Luo Daisong Inventor after: Yan Jin Inventor after: Zhang Yu Inventor after: Ge Zhangshun Inventor before: Shen Junqing Inventor before: Zhang Yu |
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Effective date of registration: 20170309 Address after: 430000 Wuhan, Wuhan Chemical Industrial Zone, the village of the village of the street, No. eight Fu Fu, special industrial park, No. 1 Applicant after: Hubei is natural gas technology Co., Ltd. Applicant after: China Academy of Transportation Sciences Address before: 430000 Wuhan Chemical Industrial Park, Hubei Province, Wuhan, eight Applicant before: Hubei is natural gas technology Co., Ltd. |
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