A kind of biological asphalt for road and its preparation device and preparation method
A bio-asphalt and preparation device technology, which is applied in the direction of melting and processing tar asphalt/petroleum asphalt/natural asphalt, etc., can solve the problems of poor high-temperature performance and strong temperature sensitivity of bio-asphalt, and achieve excellent performance, low temperature sensitivity, and raw materials Effects with few types
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Embodiment 1
[0041] In this example, the prepared bio-asphalt for roads is made of the following raw materials in weight percentage: 20% of biomass heavy oil, 74% of base asphalt, 5% of methanol, and 1% of low-density polyethylene.
[0042] When actually preparing bio-asphalt for roads, the mass percentages of the above raw materials can be adjusted accordingly according to specific needs.
[0043] In this embodiment, the base asphalt is No. 90 asphalt.
[0044] In this embodiment, the biomass heavy oil is the remaining heavy oil after the biomass oil is extracted from gasoline and diesel oil, and its specific gravity is 0.82-0.95; the biomass oil is a liquid oil obtained by pyrolysis of biomass .
[0045] Moreover, the biomass is wood chips, corn stalks, cotton stalks or wheat straws.
[0046] In this embodiment, the biomass is sawdust.
[0047] In the present embodiment, the density of low-density polyethylene is 0.915g / cm 3 ~0.940g / cm 3 .
[0048] Such as figure 1 , figure 2 Th...
Embodiment 2
[0070] In this example, the prepared bio-asphalt is made of the following raw materials in weight percentage: 20% of biomass heavy oil, 70% of base asphalt, 5% of methanol, and 5% of low-density polyethylene.
[0071] In this example, the preparation device used is the same as that in Example 1.
[0072] In the present embodiment, the preparation method adopted comprises the following steps:
[0073] Step 1. Base asphalt heating: heat base asphalt to temperature T1, where T1=140°C;
[0074] Step 2, adding low-density polyethylene: under the condition of temperature T1, add low-density polyethylene to the heated base asphalt in step 1, and stir for 0.5h at a stirring rate of 3000r / min to obtain the first mixture ;
[0075] Step 3, adding biomass heavy oil: under the condition of temperature T1, add the biomass heavy oil preheated to 60°C into the first mixture described in step 2, and stir for 0.5h at a stirring rate of 3000r / min, Obtain the second mixture;
[0076] Step 4,...
Embodiment 3
[0082] In this example, the prepared bio-asphalt is made of the following raw materials in weight percentage: 10% of biomass heavy oil, 80% of base asphalt, 5% of methanol, and 5% of low-density polyethylene.
[0083] In this example, the preparation device used is the same as that in Example 1.
[0084]In the present embodiment, the preparation method adopted comprises the following steps:
[0085] Step 1. Heating base asphalt: heating base asphalt to temperature T1, where T1=160°C;
[0086] Step 2, adding low-density polyethylene: under the condition of temperature T1, add low-density polyethylene to the heated base asphalt in step 1, and stir for 1.5h at a stirring rate of 500r / min to obtain the first mixture ;
[0087] Step 3, adding biomass heavy oil: under the condition of temperature T1, add the biomass heavy oil preheated to 60°C into the first mixture described in step 2, and stir for 1 hour at a stirring rate of 500r / min to obtain the second mixture;
[0088] Ste...
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