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System and process used for preparing SBS modified asphalt

A technology for modifying asphalt and bitumen, applied in building components, building insulation materials, buildings, etc., can solve problems such as low production efficiency of modified asphalt, and achieve the effects of reducing energy consumption, improving production efficiency, and reducing emissions

Inactive Publication Date: 2017-05-10
天津领先正华能源科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of low production efficiency of modified asphalt caused by multiple over-grinding in the prior art, thereby providing a system and process for preparing SBS modified asphalt

Method used

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  • System and process used for preparing SBS modified asphalt

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Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a system for preparing SBS modified asphalt, such as figure 1 As shown, the system includes pipelines connected sequentially in the direction of asphalt flow

[0040] The first heat exchanger group 1 is located at the entrance of the grinding system,

[0041] The first batching tank 3 is communicated with the first heat exchanger group 1 through the first base asphalt feed pump 2, and an SBS lifting device 5 is arranged near the first batching tank 3 for putting SBS materials into the station. Describe the first batching tank 3,

[0042] The colloid mill 7 communicates with the bottom outlet of the first batching tank 3 through the modified asphalt discharge pump 6,

[0043] The finished product tank 8 is located at the downstream of the colloid mill 7 and communicates with the colloid mill 7 through a pipeline;

[0044] It also includes a second heat exchanger group 10 arranged at the entrance of the preparation system and parallel to the fi...

Embodiment 2

[0056] This embodiment provides a process for SBS modified asphalt. Taking the production of 1000 tons of modified asphalt and the addition of SBS as 3.5% as an example, 965 tons of base asphalt and 35 tons of SBS are required. The specific process steps are as follows:

[0057] 465 tons of base asphalt enters the first batching tank through the first heat exchanger group through the first asphalt feed pump, and at the same time, SBS passes through the SBS lifting device to add 35 tons of SBS to the first batching tank. After the batching is completed, the premixed liquid in the first batching tank is pumped into the finished product tank through the asphalt discharge pump through the shearing machine. At the same time, the first asphalt feed pump continues to pump 500 tons of base asphalt into the second batching tank for continuous batching. Cut into the finished product cans.

Embodiment 3

[0059] This embodiment provides a process for SBS modified asphalt. Taking the production of 800 tons of modified asphalt with an SBS addition of 4% as an example, 768 tons of base asphalt and 32 tons of SBS are required. The specific process steps are as follows:

[0060] 368 tons of base asphalt enters the first batching tank through the first heat exchanger group through the first asphalt feed pump, and at the same time, SBS passes through the SBS lifting device to add 32 tons of SBS to the first batching tank. After the batching is completed, the premixed liquid in the first batching tank is pumped into the finished product tank through the asphalt discharge pump and through the shearing machine. At the same time, the first asphalt feed pump continues to pump 300 tons of base asphalt into the second batching tank for continuous batching. Cut into the finished product cans.

[0061] At the same time, 100 tons of base asphalt is directly pumped into the finished product ta...

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Abstract

The invention provides a system and a process used for preparing SBS modified asphalt, and belongs to the field of petrochemical product processing. The system comprises a first heat exchanger group, a first dosing tank, a colloid mill, an SBS lifting device and a finished product tank, which are sequentially connected in the flow direction of asphalt, and further comprises a second heat exchanger group, wherein the first heat exchanger group is arranged at an inlet of a grinding system; the first dosing tank communicates with the heat exchanger group through a first matrix asphalt feeding pump; the colloid mill communicates with a bottom outlet of the dosing tank through a modified asphalt discharge pump; the SBS lifting device is arranged near the dosing tank, and is used for adding SBS materials into the dosing tank; the finished product tank is arranged at the downstream of the colloid mill, and communicates with the colloid mill through a pipeline; the second heat exchanger group is arranged at an inlet of a preparation system, and is parallel to the first heat exchanger group; and the second heat exchanger group directly communicates with the finished product tank through a second matrix asphalt feeding pump. According to the system provided by the invention, production efficiency of SBS modified asphalt can be improved again, and throughput per day of the SBS modified asphalt is 1000 tons or more.

Description

technical field [0001] The invention belongs to the field of petrochemical product processing, and in particular relates to a system and process for preparing SBS modified asphalt. Background technique [0002] With the rapid development of China's economy, China's highway construction also maintains a trend of continuous growth every year. One of the most important materials for highway construction is asphalt. Under the high-speed and heavy-duty transportation mode, the traditional heavy-duty asphalt pavement can no longer meet the needs of China's expressway development. At present, the construction of China's expressways requires that the middle and upper layers must be mixed with SBS modified asphalt. Therefore, the demand for modified asphalt in China's highway construction is increasing every year. [0003] At present, the production capacity of a set of SBS modified asphalt production equipment is about 500 tons per day, which is far from meeting the demand for SBS ...

Claims

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Application Information

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IPC IPC(8): B02C21/00B02C23/00C08L95/00C08L53/02
CPCB02C21/00B02C23/00C08L95/00C08L53/02
Inventor 杨洪涛
Owner 天津领先正华能源科技发展有限公司
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