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Rock asphalt fluid fine grinding modification mixing process

A mixing process, rock asphalt technology, applied in construction, building components, grain processing, etc., can solve the problem of low modification ability of rock asphalt, and achieve the effect of improving the degree of bonding and improving the fineness

Active Publication Date: 2017-03-15
湖北正康科技创新有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, to propose a rock asphalt fluid fine grinding modified mixing process, and to solve the technical problem that the modification ability of rock asphalt is low in the prior art

Method used

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  • Rock asphalt fluid fine grinding modification mixing process
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  • Rock asphalt fluid fine grinding modification mixing process

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Embodiment 1 of the present invention provides a kind of asphalt fluid fine grinding modified mixing process, comprising the following steps:

[0016] (1) Crushing rock asphalt to a particle size of less than 5mm, dehydrating and activating at 150-180°C, and controlling the water content of the dehydrated rock asphalt to be below 5%;

[0017] Among them, after the rock asphalt is activated, in order to avoid the increase of water content in the rock asphalt, the rock asphalt can be dried and protected, and the water content of the rock asphalt under drying protection can be controlled below 3%.

[0018] (2) Shearing and milling the activated rock asphalt until the fineness is -150 mesh, the temperature of the shearing mill is 150-180° C., and the shearing speed is 2000-2700 rpm;

[0019] (3) Glue the shear-milled rock asphalt and base asphalt at 150-180°C for 10 minutes.

Embodiment 2

[0021] Embodiment 2 of the present invention provides a kind of asphalt fluid fine grinding modified mixing process, comprising the following steps:

[0022] (1) Crushing rock asphalt to a particle size of less than 5mm, dehydrating and activating at 150-180°C, and controlling the water content of the dehydrated rock asphalt to be below 5%;

[0023] Among them, after the rock asphalt is activated, in order to avoid the increase of water content in the rock asphalt, the rock asphalt can be dried and protected, and the water content of the rock asphalt under drying protection can be controlled below 3%.

[0024] (2) Shearing and milling the activated rock asphalt until the fineness is -150 mesh, the temperature of the shearing mill is 150-180° C., and the shearing speed is 2000-2700 rpm;

[0025] (3) Glue the shear-milled rock asphalt and base asphalt at 150-180° C. for 9 minutes.

Embodiment 3

[0027] Embodiment 3 of the present invention provides a kind of asphalt fluid fine grinding modified mixing process, comprising the following steps:

[0028] (1) Crushing rock asphalt to a particle size of less than 5mm, dehydrating and activating at 150-180°C, and controlling the water content of the dehydrated rock asphalt to be below 5%;

[0029] Among them, after the rock asphalt is activated, in order to avoid the increase of water content in the rock asphalt, the rock asphalt can be dried and protected, and the water content of the rock asphalt under drying protection can be controlled below 3%.

[0030] (2) Shearing and milling the activated rock asphalt until the fineness is -150 mesh, the temperature of the shearing mill is 150-180° C., and the shearing speed is 2000-2700 rpm;

[0031] (3) Glue the shear-milled rock asphalt and base asphalt at 150-180°C for 12 minutes.

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Abstract

The invention discloses a rock asphalt fluid fine grinding modification mixing process. The rock asphalt fluid fine grinding modification mixing process comprises the following steps that (1) rock asphalt is crushed till the particle size is 5 mm or below and is dehydrated and activated at the temperature of 150 DEG C-180 DEG C, and the water content in the dehydrated rock asphalt is controlled to be 5% or below; (2) the processed rock asphalt in the step (1) is sheared and ground till the fineness is -150 mesh or above at the temperature of 150 DEG C-180 DEG C; and (3) the processed rock asphalt in the step (2) is glued with matrix asphalt at the temperature of 150 DEG C-180 DEG C. According to the rock asphalt fluid fine grinding modification mixing process, the rock asphalt is crushed, dehydrated and activated and is subjected to hot fine grinding at the high temperature, and the fineness of the rock asphalt is advantageously improved; and meanwhile, the rock asphalt is glued with the matrix asphalt at the high temperature, then the gluing degree between the rock asphalt and the matrix asphalt is improved, and the modification capability of the rock asphalt is advantageously and fully achieved.

Description

technical field [0001] The invention relates to rock bitumen modified mixing technology, in particular to a rock bitumen fluid fine grinding modified mixing technology. Background technique [0002] Rock asphalt is an asphalt-like substance produced by petroleum after hundreds of millions of years of deposition and change under the combined effects of heat, pressure, oxidation, catalysts, bacteria, etc. It is often used as a matrix asphalt modifier. Because rock asphalt is in the form of coarse particles and strong viscosity, it is impossible to finely grind granular rock asphalt into powder, and when granular rock asphalt is used as a matrix asphalt modifier, it cannot be finely ground, resulting in It cannot be better glued to the base asphalt, so that the modification ability of rock asphalt can only be about 50%. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, propose a rock bitumen flu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B02C18/06C08L95/00
CPCB02C18/06B02C21/00C08L95/00C08L2205/025
Inventor 沈峻庆张喻
Owner 湖北正康科技创新有限公司
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