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Rubber modified asphalt preparation device

A preparation device and rubber modification technology, which is applied in building components, building insulation materials, construction, etc., can solve the problems of poor quality of TerminalBlend rubber modified asphalt, thermo-oxidative aging reaction of asphalt, etc., so as to avoid adverse effects and ensure normal operation running effect

Active Publication Date: 2020-11-24
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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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: for prior art exists: when adopting high-speed shearing instrument to shear rubber asphalt mixture in laboratory to prepare Terminal Blend rubber-modified asphalt , the shear temperature of the rubber-asphalt mixture is high, and the rubber-asphalt mixture is in contact with air, so that the asphalt undergoes thermo-oxidative aging reaction under high temperature conditions, which leads to the problem that the quality of the generated Terminal Blend rubber-modified asphalt is not good. A kind of Rubber modified asphalt preparation device

Method used

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  • Rubber modified asphalt preparation device
  • Rubber modified asphalt preparation device
  • Rubber modified asphalt preparation device

Examples

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Effect test

Embodiment 1

[0050] This embodiment provides a rubber modified asphalt preparation device, see Figure 1-2 , including a tank body, the tank body includes a tank body side wall 2 and a top cover 1 and a bottom plate 3 that are respectively sealed and connected to the two ends of the tank body side wall 2, the tank body is provided with a connecting joint, and the tank body is provided with Heating equipment 31 is arranged, and described heating equipment 31 is used for heating the rubber-asphalt mixture inside described tank body, and described tank body is provided with motor 13, and the outside of described motor 13 is provided with motor sealing compartment 12, and described motor sealing compartment 12 is in sealing connection with the tank body, the motor 13 is connected with a stirring shaft 15, and the stirring shaft 15 passes through the tank body and is connected with a dispersing and emulsifying head 16, and the dispersing and emulsifying head 16 is used for shearing the rubber a...

Embodiment 2

[0057] This embodiment provides a rubber modified asphalt preparation device, see Figure 3-5 , which is different from the rubber-modified asphalt preparation device described in Example 1 in that the tank body is provided with an exhaust channel 10, and the exhaust channel 10 is used to discharge the gas inside the tank body. In this example, if image 3 As shown, the exhaust passage 10 is arranged on the top cover 1, and the exhaust passage 10 is provided with a flue gas treatment device, which is used to clean the toxic gas generated during the reaction of the rubber asphalt mixture. Harmful asphalt fumes. The asphalt fume contains high-molecular ring carbon hydrocarbon oily organic matter, dust, and strong carcinogens such as 3,4-benzopyrene, which are extremely harmful to the human body, so that when preparing Terminal Blend rubber-modified asphalt in the laboratory , the asphalt fumes produced are likely to cause injury to experimenters. The flue gas treatment device...

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Abstract

The invention relates to a rubber modified asphalt preparation device. The rubber modified asphalt preparation device comprises a tank body, wherein the tank body comprises a tank body side wall, anda top cover and a bottom plate which are in sealed connection with two ends of the tank body side wall correspondingly; the tank body is provided with a communication connector; the tank body is internally provided with heating equipment; a motor is arranged outside the tank body; a motor sealed cabin is arranged at the outer side of the motor; the motor sealed cabin is in sealed connection with the tank body; the motor is connected with a stirring shaft; and the stirring shaft penetrates through the tank body and is connected with a dispersion and emulsification head. According to the rubbermodified asphalt preparation device provided by the invention, a sealed space is formed through matching the tank body with the motor sealed cabin; air in the sealed space can be discharged through the communication connector so that the tank body can be at a vacuum state; a rotary force is provided through the motor so that the stirring shaft drives the dispersion and emulsification head to sheara rubber asphalt mixture; and meanwhile, the rubber asphalt mixture is heated through the heating equipment and the rubber asphalt mixture reacts in a vacuum environment, so that a thermal-oxidativeaging reaction of asphalt under a high-temperature condition is alleviated.

Description

technical field [0001] The invention relates to the technical field of machinery, in particular to a rubber-modified asphalt preparation device. Background technique [0002] Terminal Blend rubber-modified asphalt is a new type of high-quality composite material. It refers to adding rubber powder as a modifier to the base asphalt. Under high temperature (>220°C) and high shear rate (>3000r / min), The rubber powder is desulfurized and depolymerized in the asphalt to obtain a uniform and smooth binder. Compared with wet-process rubber asphalt, it has the characteristics of low viscosity, anti-fatigue, high storage stability, and suitable for dense mixing of mixtures. The laboratory generally uses a high-speed shearer to shear the rubber asphalt mixture (including rubber powder and matrix asphalt) to prepare Terminal Blend rubber-modified asphalt. In this process, the rubber asphalt mixture is directly exposed to the air, at a higher shear temperature (>220°C), therma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/00C08L95/00C08L19/00
CPCC08J3/005C08J2395/00C08J2419/00
Inventor 谢娟张永宁阳月明陈学儒罗浩宸
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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