Preparation method for asphalt concrete

Abstract

The invention discloses a preparation method for asphalt concrete. The preparation method comprises the following steps of I, adding heated asphalt into a shell, and controlling a rotating shaft to drive a stirring rod located in the shell to stir asphalt; II, putting gravel blocks into a screen mechanism and controlling a push plate to move leftward to push the gravel blocks to a screen, whereinthe push rod moves leftward to connect a belt wheel assembly connected to the screen mechanism to the rotating shaft; III, controlling an electric push rod to extend out continuously, wherein the electric push rod drives the push plate to push large stones plugged on the screen leftward, and the large stones are crushed by a rotating stone crushing knife and further fall into asphalt through the screen; IV, controlling, by the push rod, the screen mechanism to stop rotating when the gravel blocks are fully screened; and V, continuously controlling the stirring rod to stir asphalt mixed with the gravel blocks for five minutes to prepare the asphalt concrete. The preparation method for asphalt concrete is not only simple to operate, but also can prepare asphalt concrete quickly.

Description

technical field [0001] The invention belongs to the technical field of asphalt concrete, in particular to a preparation method 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: 1. When the existing equipment is preparing and processing asphalt concrete, it cannot effectively screen the crushed stone material, resulting in the mixing of finished materials. Blocky crushed stones affect the subsequent processing and use of finished materials; 2. Asphalt concrete preparation equipment that can be screene...

AI Technical Summary

Problems solved by technology

There are following problems in the preparation of asphalt concrete in the prior art: 1. When the existing equipment is preparing and processing asphalt concrete, it cannot effectively screen the crushed stone material, resulting in the mixing of finished materials. Blocky crushed stones affect the subsequent processing and use of finished materials; 2. Asphalt concrete preparation equipment that can be screened usually has the problem of crushed stones blocking the screen holes, resulting in low filtration efficiency and affecting the production period of asphalt concrete

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