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High-viscosity composite modified pitch and storing and heating device thereof

A composite modified asphalt and heating device technology, which is applied in the field of asphalt improvement, can solve problems such as waste, the production rate of anti-corrosion tape cannot be kept constant, and the mixing temperature limit, so as to avoid human burns or scalds, and solve drive and transmission delays. Time, high and low temperature performance excellent effect

Inactive Publication Date: 2016-02-10
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prior art process is relatively cumbersome, the cost is high, and the mixing temperature is limited, so it is difficult to prepare high-viscosity composite modified asphalt; in addition, the preheating and preservation of the raw material asphalt are in the initial stage, due to the temperature of the asphalt When it is low, it will solidify, causing the anti-corrosion tape to fail to form, especially in the cold winter in the north, asphalt often exists in a solid state, so it is necessary to heat the asphalt in advance, and the production rate of anti-corrosion tape cannot be kept consistent, so asphalt is often in the After heating, it takes a long time to flow into the production process, so it needs to be heated again, resulting in duplication of labor and energy waste

Method used

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  • High-viscosity composite modified pitch and storing and heating device thereof
  • High-viscosity composite modified pitch and storing and heating device thereof
  • High-viscosity composite modified pitch and storing and heating device thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1, the high-viscosity composite modified asphalt of the present invention is realized in this way, a kind of high-viscosity composite modified asphalt, it is characterized in that, described composite high-viscosity modified asphalt raw material adopts the following components and weight percentage content : asphalt 85; modified compound 15;

[0055] Further, the asphalt includes the following components and their mass percentages are: 21.15%-23.43% of saturated components, 32.26%-46.00% of aromatic components, 21.64%-33.73% of colloids, and 7.96%-10.83% of asphaltenes.

[0056] Furthermore, the softening point of the pitch is 99.5°C-101.4°C.

[0057] Further, the modified compound is styrene-butadiene-styrene copolymer, desulfurized rubber particles and compatibilizer, or is styrene-isoprene-styrene copolymer, desulfurized rubber particles and phase Toner.

[0058] Further, the weight ratio of the styrene-butadiene-styrene copolymer to the desulfurized rub...

Embodiment 2

[0062] Embodiment 2, the preparation method of the high-viscosity composite modified asphalt of the present invention is:

[0063] (1) Styrene-butadiene-styrene copolymer / desulfurized rubber particles with a weight ratio of 1:1, or styrene-isoprene-styrene copolymer / desulfurized rubber with a weight ratio of 1:1 Mix the granules and compatibilizer evenly, react and mix in an internal mixer for 30 minutes at 160-170°C to obtain a modified compound, and obtain modified compound particles after mechanical granulation;

[0064] (2) Heat the base asphalt to 170°C-180°C, slowly add the modified composite particles, at a constant temperature, use a high-speed shear emulsifier to cut for 45 minutes, control the speed of the shearer to 3500-4500r / min, and then place Stir for 2 hours at a low speed under the agitator, and the composite high-viscosity modified asphalt is prepared.

Embodiment 3

[0065] Example 3, figure 1 and figure 2 Shows the structure of the storage and heating device for high-viscosity composite modified asphalt provided by the present invention, mainly including: shell 1, insulation layer 2, heating tank 3, inner tank 4, asphalt injection pipe 5, asphalt outlet pipe 6, and rotation system 7 , spoiler 8, control switch 9, temperature sensor 10, temperature indicator 11;

[0066] The storage heating device of the high-viscosity composite modified asphalt is provided with an outer shell 1, a heating liner 3 and an inner liner 4, the outer shell 1 is equipped with a temperature indicator 11 and a control switch 9 for the heating liner, and the inner liner 4 is equipped with A temperature monitoring device is installed, and the temperature monitoring device is connected to a temperature display instrument 11 through a wire; the temperature display instrument 11 is connected to the control switch 9, and the temperature monitoring device is a tempera...

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Abstract

The invention discloses high-viscosity composite modified pitch and a storing and heating device thereof. The storing and heating device of the high-viscosity composite modified pitch is provided with a shell, a heating container and an inner container, a temperature indicator and a control switch of the heating container are installed on the shell, a temperature monitoring device is installed on the inner container, the temperature monitoring device is connected with the temperature indicator through a wire, and the temperature indicator is connected with the control switch. The high-viscosity composite modified pitch is prepared from, by weight, 85 parts of pitch and 15 parts of modified compounds. The prepared composite high-viscosity modified pitch has the advantages of being stable in heat storage and good in high temperature and low temperature performance; a large number of pitch raw materials are stored, preheating treatment is conducted on the pitch raw materials, the temperature of the pitch can be controlled accurately, the production requirement is guaranteed, and the energy is saved.

Description

technical field [0001] The invention belongs to the technical field of asphalt improvement, and in particular relates to a high-viscosity composite modified asphalt and a storage heating device thereof. Background technique [0002] As a cementing material, asphalt has the advantages of waterproof, insulation, corrosion resistance, etc., and has a good bonding effect with stone ore materials. It has been widely used as road construction materials for a long time. In recent years, with the increase of traffic volume and traffic load, people have put forward more stringent requirements for road paving asphalt materials, but ordinary asphalt is prone to rutting at high temperature and cracking at low temperature, which can no longer fully meet the actual needs. Adding a high content of polymer to asphalt to prepare high-viscosity modified asphalt can effectively improve the high and low temperature performance of asphalt. Therefore, people have been devoting themselves to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10C3/12C08L95/00C08L53/02
Inventor 肖杰莫志凡陆宏新唐咸远张坤球姚青云唐双美
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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