Asphalt concrete preparation process

Abstract

The invention discloses an asphalt concrete preparation process which comprises the following steps: S1, starting a power assembly, and driving a stone screening and crushing assembly and a stirring assembly to work by the power assembly; s2, feeding broken stones from a stone inlet, screening large broken stones and small broken stones twice through a stone screening and smashing assembly, enabling the small broken stones to fall into a stirring cavity, and extruding and smashing the large broken stones to be added into the stirring cavity; s3, introducing asphalt into an asphalt inlet, and controlling a switch assembly to open the asphalt inlet once when the stirring plate of the stirring assembly rotates by one circle, so that the asphalt quantitatively enters the stirring cavity and is uniformly mixed with the crushed stones; s4, after stirring is completed, placing a collecting vehicle at a discharging opening, then opening the material cover, and enabling the stirred asphalt concrete to flow into the collecting vehicle below; the preparation of the asphalt concrete is easy to operate, and the asphalt concrete prepared by screening stones is more uniform.

Description

technical field [0001] The invention relates to the technical field of asphalt concrete, in particular to a preparation process of asphalt concrete. Background technique [0002] Asphalt concrete is a mixture made by mixing gravel or crushed gravel, stone chips or sand, mineral powder, etc., with a certain proportion of road asphalt materials under strictly controlled conditions. Asphalt concrete is often used for paving roads. It has the advantages of economy and safety, smooth surface, no joints, no dust, easy cleaning, fast construction progress, and high strength. There are following problems in the preparation of asphalt concrete in the prior art: [0003] 1. Existing equipment cannot effectively screen crushed stone materials when preparing and processing asphalt concrete, resulting in the mixing of finished materials with large pieces of crushed stones, which affects the subsequent processing and use of finished materials; [0004] 2. The large crushed stones screen...

AI Technical Summary

Problems solved by technology

[0003] 1. Existing equipment cannot effectively screen crushed stone materials when preparing and processing asphalt concrete, resulting in the mixing of finished materials with large pieces of crushed stones, which affects the subsequent processing and use of finished materials;

[0004] 2. The large crushed stones screened out through the screen cannot be reused, resulting in waste of stones and affecting the overall consumption of stones;

[0005] 3. During the mixing process of asphalt and gravel, because the internal mixing plate will stick to the asphalt, the asphalt sticks to the mixing plate for a long time and is difficult to remove, thus affecting the mixing effect;

[0006] 4. When the existing asphalt concrete is prepared, all the required asphalt is put in at one time. As a result, after mixing, the asphalt cannot wrap each aggregate well, and the distribution of asphalt is uneven, which affects the use of asphalt concrete.

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