Asphalt foam warmly-mixed mixture equipment

Abstract

The invention discloses asphalt foam warmly-mixed mixture equipment. The equipment comprises a box body, aggregate pre-storage boxes, aggregate feeding openings, powder feeding openings, fixed additive feeding openings, lifting mixing mechanisms, liquid additive feeding openings, warmly-mixed foam asphalt mechanisms, stirring mechanisms, discharging mechanisms, lining plates, guiding plates and supporting legs; the aggregate pre-storage boxes are arranged on two sides of the box body; the bottoms of the aggregate pre-storage boxes communicate with the lifting mixing mechanisms; a pair of warmly-mixed foam asphalt mechanisms is arranged at the bottoms of mixture outlets of the lifting mixing mechanisms; the liquid additive feeding openings are formed in the top of the box body; the lining plate is arranged on one side of each lifting mixing mechanism in the box body; a pair of stirring mechanisms is arranged at the bottoms of the warmly-mixed foam asphalt mechanisms; the guiding platesare arranged at the bottoms of the lining plates; and the discharging mechanisms are arranged on the guiding plates. By the aid of the equipment, the construction workability of mixtures is enhanced.

Description

technical field [0001] The invention belongs to the technical field of engineering construction asphalt processing, and in particular relates to asphalt foam warm mixing equipment. Background technique [0002] Foam warm mix asphalt is a kind of warm mix asphalt technology. A small amount of water and hot asphalt are simultaneously added to the foaming device. When the cold water is heated, the asphalt vaporizes rapidly, and the volume expands rapidly to form foam asphalt. The asphalt is sprayed into the mixing tank in the form of foam and mixed with the aggregate to form an asphalt mixture. Since the viscosity of the foamed asphalt is much lower than that of the base asphalt, the construction workability of the mixture is increased, so that the foamed asphalt mixture can be used faster than conventional hot mixing. When the asphalt mixture is lower than 20-30 ℃, mixing and construction. [0003] At present, there are three methods for producing warm-mix asphalt warm-mix as...

AI Technical Summary

Problems solved by technology

In order to improve the road performance of its mixture, the expansion rate of foamed warm-mix asphalt should be as large as possible, and the half-life should be extended as much as possible. The most important thing is to mix aggregates and foamed asphalt evenly within the half-life of foamed asphalt; secondly In the process of use, we found that due to the rapid expansion of the volume of foamed asphalt during the production process, the nozzle is easy to stick to the asphalt binder.

In the next production, it is easy to cause no water or less water output from the nozzle, which will affect the foaming rate of the foamed asphalt. In the actual production process, the nozzle needs to be replaced or cleaned frequently

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