Movable crushing and screening equipment for integrated equipment asphalt milling materials

Abstract

The invention discloses an integrated equipment asphalt milling material movable crushing and screening device which comprises a working box, supports are fixed to the two sides of the working box, a spiral conveyor is fixed to one side of each support, a first crushing cavity is formed in the top of the inner side of the working box, a first crushing mechanism is arranged in the first crushing cavity, and a transmission cavity is formed in one side of the first crushing cavity. A second crushing cavity is formed below the first crushing cavity, a second crushing mechanism is arranged on the inner side of the second crushing cavity, a screening cavity is formed below the second crushing mechanism, a screening mechanism is arranged in the screening cavity, and a recycling channel is connected to one side of the screening cavity. According to the device, the double crushing mechanisms are arranged to perform double crushing on a milling material, asphalt is screened, the unqualified milling material is conveyed into the working box through the spiral conveyor to be crushed again, multiple cycles are performed, the required milling material can be obtained, the device is convenient to move by arranging the movable base and the walking wheels, and the working efficiency is improved. And the method is suitable for multi-batch operation with small work amount.

Description

technical field [0001] The invention relates to the technical field of asphalt milling material processing, in particular to integrated equipment for crushing and screening equipment for asphalt milling material movable. Background technique [0002] Scrape off a layer of damaged asphalt sand road surface with a milling machine, and the scraped asphalt gravel mixture is the asphalt milling material. After crushing and screening the old asphalt milling material, add regenerated asphalt reducing agent and a small amount of new asphalt and mix it to pave the road. This technology can utilize 70% of asphalt milling old materials, and can save 34% of the cost of new asphalt materials. On-site thermal regeneration technology of asphalt pavement can save money for asphalt pavement maintenance, improve the stacking of recycled materials, reduce the demand for natural aggregates, reduce the pollution of a large amount of materials to the environment, and improve the anti-aging perfo...

AI Technical Summary

Problems solved by technology

[0004] During the use of the existing asphalt pavement milling material crushing and screening device, it was found that in the process of extrusion and crushing of the milling material, the broken old asphalt pavement may not be completely broken, resulting in a large amount of dust in the crushed material. The blocky old asphalt pavement, when mixing and mixing, leads to uneven mixing, which reduces the quality of the new mixture, thus affecting the repair of the asphalt pavement. At the same time, the crushed milling material can only be sieved once. It is convenient for further screening, and, due to frequent site changes and large equipment footprints, the relocation is complicated, and it is not suitable for multi-batch operations with small engineering quantities, resulting in a small application range

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