초록 ▼

A blending apparatus which forms part of an asphalt pavement resurfacing machine has first and second stages. The first stage receives milled material through an inlet and blends the milled material with a rejuvenating fluid. The first stage has a transversely extending shaft from which paddles exte

A blending apparatus which forms part of an asphalt pavement resurfacing machine has first and second stages. The first stage receives milled material through an inlet and blends the milled material with a rejuvenating fluid. The first stage has a transversely extending shaft from which paddles extend radially to blend the milled material with the rejuvenating fluid and direct it toward a first stage outlet. The second stage receives the blended material from the first stage outlet. The second stage has a respective shaft with mixing paddles extending radially therefrom to further blend the material and direct it toward a second stage outlet.

대표청구항 ▼

1. An asphalt pavement resurfacing machine having a transport structure, a heater mounted to said transport structure for heating an underlying surface to form a heated surface, a scarifier mounted to said transport structure to follow said heater and break up said heated surface to form a scarified

1. An asphalt pavement resurfacing machine having a transport structure, a heater mounted to said transport structure for heating an underlying surface to form a heated surface, a scarifier mounted to said transport structure to follow said heater and break up said heated surface to form a scarified surface, a mill mounted to said transport structure to follow said scarifier, grind said scarified surface to form a milled material and to prepare said underlying surface to a preset depth, a rejuvenating fluid sprayer for introducing a rejuvenating fluid to said milled material and a mixer for blending said milled material with said rejuvenating fluid, said mixer having a first stage comprising:a first stage shell having a downwardly facing bottom opening; said first stage shell further having an inlet opening facing in a travel direction of said transport structure for admitting said milled material into said first stage; a first stage shaft extending transversely relative to said travel direction and mounted to said first stage shell for rotation about a first stage shaft axis within said first stage shell; a plurality of paddles extending radially from said first stage shaft for blending said rejuvenating fluid with said milled material within said first stage shell and for directing said blended material thus formed toward a first stage discharge outlet facing rearwardly relative to said travel direction; and, a rotator for rotating said shaft along with said paddles wherein, said first stage shell is placeable in close proximity to said underlying surface with said bottom opening adjacent thereto, said first stage being operatively combinable with the underlying surface to form a substantially enclosed chamber with said first stage shaft and said paddles being rotatable within the substantially enclosed chamber to blend the milled material with the rejuvenating fluid.