Foamed bitumen generating spraying system

Abstract

The invention provides a foamed asphalt generation spraying system. The foamed asphalt generation spraying system comprises a hot asphalt spraying cavity, a foaming unit, a control unit and a heating unit. The two end faces of the hot asphalt spraying cavity are communicated with asphalt conveying systems respectively. The foaming unit comprises an asphalt foaming chamber, a hot asphalt spraying control air cylinder, an asphalt nozzle, a foamed asphalt spraying control oil cylinder, a foamed asphalt outlet, a foaming water conveying pipeline and a foaming air conveying pipeline. The hot asphalt spraying control air cylinder comprises a pneumatic control cavity, an air cylinder rod and an air cylinder rod sleeve. The air cylinder rod sleeve penetrates through the hot asphalt spraying cavity in an up-down through mode, and the asphalt nozzle is arranged on the lower end face of the air cylinder rod sleeve. The foamed asphalt spraying control oil cylinder comprises an oil pressure control cavity, an oil cylinder rod and an oil cylinder rod sleeve. The heating unit comprises conduction oil coils arranged in the hot asphalt spraying cavity. The foamed asphalt generation spraying system can effectively overcome the defects of hot asphalt and emulsified asphalt, and the foamed asphalt generation spraying system is equipment special for preparing foamed asphalt.

Description

technical field [0001] The invention belongs to the field of pavement material regeneration, and relates to a foam asphalt generation spraying system. Background technique [0002] During the asphalt pavement recycling construction process, the asphalt materials added and mixed into the recycled materials are mainly hot asphalt and emulsified asphalt. However, these two kinds of asphalt materials have the following disadvantages in the use process: hot asphalt, because of its small addition amount (3-5%) in recycled materials, the overall addition volume is small and the viscosity is large, and the mixing time is very short, so It is difficult to mix evenly with recycled materials; emulsified asphalt, the emulsifier contained in it will have an adverse effect on the original properties of asphalt, and special emulsified asphalt equipment is required to prepare, and the cost is high. Contents of the invention [0003] The object of the present invention is to provide a foa...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a foamed asphalt generating and spraying system, which solves the problem of poor asphalt mixing effect existing in the process of directly adding hot asphalt or emulsified asphalt to mix asphalt recycled materials

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