Microwave radiation rubber powder continuous production system and method

Abstract

The invention discloses a microwave radiation rubber powder continuous production system. The continuous production system comprises a raw material module, a mixing module, a microwave radiation heating module, a temperature control module, a metering module and a wind power conveying module, wherein the raw material module comprises a raw material box, a main material box and an auxiliary material box, the raw material box, the main material box and the auxiliary material box are all in conveying connection with the mixing module, the mixing module comprises a high-speed mixing stirrer and alow-speed mixing stirrer, and the microwave radiation heating module comprises a plurality of groups of microwave radiant tubes, a heating resonant cavity and a lining tetrafluoro spiral conveying system. The invention further discloses a microwave radiation rubber powder continuous production method. According to the continuous production system, the modified rubber powder has good compatibilitywith matrix asphalt, so that the modified asphalt containing the modified activated rubber powder has good high-temperature performance, aging resistance and storage stability.

Description

technical field [0001] The invention relates to the technical field of automatic production of modified rubber powder, in particular to a continuous production system and method for microwave irradiated rubber powder. Background technique [0002] In recent years, the development of domestic road traffic has put forward higher and higher requirements for the performance of asphalt pavement. However, because ordinary asphalt concrete can't solve the contradiction between high-temperature stability and low-temperature crack resistance, many rutting and cracking early failure phenomena appear on asphalt pavement in my country, which seriously affects the efficiency of highway use. Polymer modified asphalt is recognized as an excellent pavement material because of its excellent high and low temperature performance. It has been widely recognized in the industry to improve the performance of matrix asphalt by adding polymers, but the price of styrene butadiene block copolymer (SBS...

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Problems solved by technology

[0005] The vulcanized rubber powder produced above is usually used in the production of modified asphalt, but most of the waste rubber powder we use is vulcanized rubber powder, and the polymer molecules have been cross-linked by some atoms such as sulfur. The rubber powder in the asphalt is dispersed in the base asphalt with tiny particles, and the surface is combined with the asphalt by absorbing the oil in the asphalt to swell, and the modified asphalt formed is a heterogeneous system. When stored at high temperature, the vulcanized rubber powder is in the asphalt Segregation is easy to occur in the medium, the storage stability is poor, and it is not easy to store for a long time and transport over a long distance. Moreover, the method of using vulcanized rubber powder to modify asphalt for production and processing has long production time, high temperature, and large amount of exhaust gas. The consumption is high, and the requirements for clean and safe production have not been met. Therefore, we propose a production equipment system and method for producing modified activated rubber powder.

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