Vertical mixing and heating device for mixing and stirring materials

Abstract

The invention discloses a vertical mixing and heating device for mixing and stirring materials. The invention relates to the technical field of asphalt recycling. The stirring device comprises a stirring shaft, a connecting block and a stirring rod; the lower end of the stirring shaft is fixedly connected with the connecting block; the stirring rod is fixed on the side end surface of the connecting block; a stirring block is fixed at the front end of the stirring rod; a circulating heat pipe is arranged in the stirring shaft, the connecting block and the stirring rod; an exhaust pipe is arranged on an upper cover, two groups of ventilation holes are formed in the stirring shaft along the axial direction; a ventilation sleeve is arranged in the periphery of each group of ventilation holes;the ventilation sleeve is mounted on the stirring shaft through a bearing; the exhaust pipe is communicated with one of the ventilation sleeves, the stirring block comprises a connecting plate, the connecting plate is fixedly connected with the stirring rod, the lower end of the connecting plate is fixedly connected with a cutter, stirring fins are fixed to the lower end of the cutter, and the sumof the lengths of all the stirring fins on the stirring device is not smaller than the difference between the radius of a stirring kettle and the radius of a protruding box.

Description

technical field [0001] The invention relates to the technical field of asphalt recycling, in particular to a vertical mixing and heating device for mixing and stirring materials. Background technique [0002] The asphalt pavement hot recycling repair vehicle is mainly aimed at the repair of damaged roads, using local materials, cutting the original damaged asphalt pavement, reheating the blocky stone bonded body, and laying it on the spot after asphalt mixing to form a new road. pavement. [0003] The current asphalt pavement repair vehicles mostly use drums for mixing, and use gravity to mix the mixture. The heating method is to install a burner on the axis of the drum, and use the flame ejected from the burner to directly heat the mixture. This type of device is simple to manufacture. The process is difficult to manufacture, but the large block of mixing material cannot be broken in time and effectively, the heating speed is slow, and it is easy to cause problems such as ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a vertical mixing and heating device for mixing and stirring material, so as to solve the problem that the flame sprayed by the burner proposed in the above-mentioned background technology directly heats the mixing material, and it is directly discharged after heating. The direct heating method is easy to cause stirring The material is heated unevenly, and the local temperature is too high to carbonize the binder such as asphalt and lose its viscosity. There are problems of low quality of mixing material and low utilization rate of heat energy.

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