Industrial equipment for the hot recycling of asphalt mixes

摘要

The present disclosure relates to industrial equipment for the hot recycling of asphalt mixes. The industrial equipment may comprise a portable bank of hoppers which may be used to meter RAP and unadulterated petrous materials and may be mounted on a supporting structure, along with gear motors which control the metering and send a signal to a flow indicator in a control panel where it may be recorded and controlled. A conveyor belt may be provided below the hopper bank in order to receive the material and transport same to a rotary cylinder comprising an industrial open-flame burner that may be used to transmit heat energy indirectly to the RAP and to the supply of unadulterated petrous material. In some embodiments, the present disclosure may also comprise: a tank for storing a mixture of asphalt and rejuvenating agent enhanced with polymers, which may be metered using a volumetric gear pump through a pipe towards the rotary cylinder, the outlet of said cylinder comprising a temperature sensor that may send a signal to the recycled asphalt mix temperature indicator in the control panel; a recycled asphalt mix lifting system which may convey said mix to a discharge silo; a combustion gas extractor which may discharge combustion gases from the burner; a fuel storage tank which may be used in the industrial burner; and a weight measuring element which may be at the inlet of the rotary drum.

主权项

1. Industrial equipment for hot recycling of asphalt mixes, comprising:
a portable bank of hoppers operable to meter recycled asphalt pavement and unadulterated petrous materials;
wherein the bank of hoppers are mounted on a supporting structure; a plurality of gear motors;
wherein the plurality of gear motors comprise a plurality of frequency converters;wherein the plurality of gear motors are operable to control the metering of the recycled asphalt pavement and unadulterated petrous materials,wherein the plurality of gear motors are operable to send a flow indicator signal to a control panel;wherein the control panel is operable to record the flow indicator signal; andwherein the plurality of gear motors are mounted on the supporting structure; a conveyor belt disposed below the bank of hoppers;
wherein the conveyor belt is operable to receive the unadulterated petrous materials and transport them toward an inlet of a rotary cylinder;wherein the conveyer belt is supported on a plurality of load rollers; andwherein the plurality of load rollers are operable to drive the rotation of the cylinder; a tank;
wherein the tank is operable to store a mixture of asphalt-rejuvenating agents;wherein the tank comprises a connecting pipe operable to meter the asphalt-rejuvenating agents towards the rotary cylinder;wherein the metering of the asphalt-rejuvenating agents is controlled by a volumetric gear pump; andwherein an outlet of the rotary cylinder comprises a temperature sensor operable to send a signal to a recycled asphalt mix temperature indicator in the control panel; a recycled asphalt mix lifting system disposed adjacent to the outlet of the rotary cylinder;
wherein the recycled asphalt mix lifting system is operable to transport a recycled asphalt mix to a discharge silo; a combustion gas extractor disposed in the rotary cylinder operable to discharge combustion gases from a burner; and a fuel storage tank and a weight measuring element provided under the conveyor belt at the inlet of the rotary cylinder;
wherein the weight measuring element is operable to record a weight of a material to be supplied; wherein the rotary cylinder comprises:
an open-flame industrial burner mounted at the inlet of the cylinder, wherein the open-flame industrial burner is operable to transmit heat energy to the recycled asphalt pavement and unadulterated petrous materials;the inlet;the outlet;an internal continuous metal helicoid;
wherein the internal continuous metal helicoid comprises a length of about 30% to about 80% of a length of the rotary cylinder;wherein walls of the internal continuous metal helicoid form a circular space in the center of the internal continuous metal helicoid, the circular space operable as a flame conduction zone; andwherein the internal continuous metal helicoid comprises a zone disposed between the walls;
wherein the zone is operable for conduction or conveyance of the recycled asphalt pavement and unadulterated petrous materials, in a flame direction, as the rotary cylinder rotates; andwherein an indirect heat energy transfer transforms solid asphalt contained in the recycled asphalt pavement to a liquid phase without reaching combustion;an injection zone of the asphalt-rejuvenating agents;
the injection zone disposed adjacent to an end of the helicoid;a plurality of mixing paddles disposed in an internal perimeter of the rotary cylinder and after the internal continuous metal helicoid;
wherein the plurality of mixing paddles form a mixing zone;wherein the plurality of mixing paddles are operable to form a recycled asphalt mixture by mixing the recycled asphalt pavement and unadulterated petrous materials with the asphalt-rejuvenating agents;a plurality of expelling paddles disposed adjacent to the plurality of mixing paddles;
wherein the plurality of expelling paddles are operable to expel the mixture through the outlet of the rotary cylinder; andwherein the plurality of mixing paddles and the plurality of expelling paddles occupy a remainder space of the rotary cylinder to recycle 100% recycled asphalt pavement.