Asphalt mixture drying drum

Abstract

The invention belongs to the technical field of asphalt concrete stirring, and in particular relates to an asphalt mixture drying drum capable of drying two kinds of asphalt materials at the same time. The drum comprises a drum body, a bracket, a driving device and a burner, wherein the drum body is arranged on the bracket through the driving device; the driving device can drive the drum body to rotate on the bracket; and the burner is connected with the drum body and is used for heating the interior of the drum body. The asphalt mixture drying drum is characterized in that the drum body is erected on the bracket, and is arranged in a manner of forming a certain included angle with the horizontal plane in the upper-lower direction; the high end of the drum body serves as a feed end, and the lower end of the drum body serves as a discharge end; the drum body comprises an internal drum body and an external drum body; the feed ends and the discharge ends of the internal drum body and the external drum body are respectively provided with feed ports and discharge ports; a material cavity for containing the asphalt materials is formed between the internal drum body and the external drum body; and the discharge port of the internal drum body is not communicated with the material cavity. The regeneration drum can dry the two kinds of asphalt materials at the same time, thus avoiding the problems of nonuniform heating, asphalt ageing and the like, and the heating efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of asphalt concrete mixing, and in particular relates to an asphalt mixture drying drum which can simultaneously dry two kinds of asphalt materials. Background technique [0002] At present, the double-layer drying drum includes an inner cylinder and an outer cylinder. The inner cylinder and the outer cylinder are connected through the material guide hole. The asphalt material first enters the inner cylinder after drying, and then enters the inner cylinder and the outer cylinder through the material guide hole. The second drying is carried out in the interlayer, and the dried asphalt material is discharged from the discharge port of the outer cylinder. The existing asphalt drying drum has the following problems: one is that the heating temperature required for different existing asphalt materials is different, so the existing double-layer drying drum can only dry one kind of asphalt material at a time; The ...

AI Technical Summary

Problems solved by technology

The existing asphalt drying drum has the following problems: one is that the heating temperature required for different existing asphalt materials is different, so the existing double-layer drying drum can only dry one kind of asphalt material at a time; The material drying drum adopts a down-flow heating method, since the feed port is set on the same side as the burner, the processing efficiency of this heating method is low, and the contact between the flame and the recycled material will cause uneven heating and partial heating when drying the recycled material. Aging and other issues

Images