A kind of asphalt pavement regeneration system

Abstract

The invention discloses an asphalt pavement regeneration system. According to the asphalt pavement regeneration system, a reclaimed material collector, a heating roller, a ground heating plate mechanism, and a material lifting pipe are arranged on a vehicle body; the reclaimed material collector is arranged on the bottom of one end of the vehicle body; the reclaimed material collector is connectedwith an inlet of the heating roller through an upward inclined feeding conveyer belt; a flame heater is arranged on the heating roller; an outlet of the heating roller is connected with a horizontalconvey belt; the horizontal convey belt is connected with the bottom of the material lifting pipe; the material lifting pipe is arranged to be inclined; the top of the material lifting pipe is connected with a discharge hole; the ground heating plate mechanism is arranged below the vehicle body; and the heating roller is connected with the ground heating plate mechanism through a first hot wind convey pipeline. According to the asphalt pavement regeneration system, an exhaust gas treatment mechanism is used for centralized treatment of toxic and harmful asphalt smoke generated in heating of old asphalt pavement, and realizing full cyclic utilization of fuel; pollution-free hot air is generated via treatment, and is used for ground thermal insulation and heating, so that resource utilization rate is increased, and the pollution degree in asphalt regeneration process is reduced.

Description

technical field [0001] The invention relates to the field of asphalt pavement treatment, in particular to an asphalt pavement regeneration system. Background technique [0002] Hot-in-place regeneration technology for asphalt pavement uses special hot-in-place recycling equipment. During the hot-in-place regeneration of asphalt pavement, it is necessary to collect recycled materials after heating and raking, and mix them with new asphalt mixture. At present, manual collection and transportation are generally used, which has high construction costs and low efficiency. The asphalt fumes generated during the heating and mixing process are discharged in an unorganized manner, polluting the environment and wasting energy. In particular, the existing asphalt pavement hot-in-place recycling machine usually uses a heating plate to heat the old asphalt mixture pavement with a thickness of 4-6 cm once, so that the surface of the asphalt pavement reaches 250°C after heating, and the bo...

AI Technical Summary

Problems solved by technology

At present, manual collection and transfer are generally used, which has high construction costs and low efficiency. The asphalt fume generated during the heating and mixing process is discharged unorganized, polluting the environment and wasting energy.

In particular, the existing asphalt pavement hot-in-place recycling machine usually uses a heating plate to heat the old asphalt mixture pavement with a thickness of 4-6 cm once, so that the surface of the asphalt pavement reaches 250°C after heating, and the bottom layer is only 50-70°C, resulting in The upper and lower temperatures of the recycled materials are uneven, and the overall temperature of the old asphalt recycled materials after raking and mixing is low. Because the surface temperature exceeds 200°C, the surface asphalt will age, which will affect the quality of the recycled pavement.

And because the old asphalt pavement contains aged asphalt, when the asphalt is heated to 80°C-200°C, a large amount of asphalt smoke will be generated, which will be discharged into the air without organization, causing a lot of pollution to the air, especially in the construction of urban main roads and crossing cities. construction on the expressway, this kind of asphalt fume pollution is particularly serious

At the same time, asphalt fume contains tiny asphalt oil mist particles, which can be fully burned and continue to generate a part of heat. Since this part of resources is directly discharged into the air without organization, it will pollute the environment and cause a waste of energy.

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