Pneumatic type flexible crusher for used asphalt mixture

Abstract

The invention discloses a pneumatic type flexible crusher for a used asphalt mixture. The pneumatic type flexible crusher for the used asphalt mixture comprises a control device, a high-pressure air supply device, a feeding device and a machine frame. The high-pressure air supply device and the feeding device are both installed on the machine frame. The control device is installed on the high-pressure air supply device. The high-pressure air supply device comprises a high-pressure pump and a high-pressure pipeline. One end of the high-pressure pipeline is connected to the high-pressure pump. Compared with other crushing devices, because the air pressure can be adjusted at any time and air is a nonrigid medium, the pneumatic type flexible crusher for the used asphalt mixture can conduct flexible crushing on the used asphalt mixture and enables the used asphalt and building stones to be separated in a stripping manner along the interface between the used asphalt and the building stones so as to meet regeneration grading requirement of the asphalt.

Description

technical field [0001] The invention belongs to the field of engineering machinery, in particular to a pneumatic flexible crusher for old asphalt mixture. Background technique [0002] Asphalt pavement is the main type of road in my country, and asphalt mixture is used as the pavement structural layer, and its asphalt performance will decay with the increase of service life, resulting in a decrease in pavement performance. When the performance of the pavement drops to a certain extent and cannot meet the requirements of use, it is necessary to carry out pavement renovation or reconstruction, resulting in a large amount of old asphalt mixture. With people's attention to sustainable development and environmental protection issues, the recycling of waste asphalt mixture has become a focus. [0003] The current regeneration process mainly includes in-situ regeneration method and plant-mixed regeneration method. Regardless of the method used, the crushing device is an indispens...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a pneumatic flexible crusher for old asphalt mixture to solve the problems in the prior art; the old asphalt mixture in the present invention is to realize the old asphalt mixture through the impact of high-pressure airflow Broken, the cutting force of the air knife of this high-pressure crushing device is higher than the bonding strength between the aggregates, but lower than the strength of the aggregate itself. Therefore, in the crushing process, the crushing of the aggregate is avoided while ensuring the crushing efficiency.

Images