Intermittent asphalt concrete mixing plant

Abstract

The invention discloses an intermittent asphalt concrete mixing plant. The intermittent asphalt concrete mixing plant comprises an aggregate feeding device, a powder feeding device, an asphalt feeding device, a drying device, a first transfer device, a screening device, a premixing device, a second transfer device and a stirring and mixing device, wherein the aggregate feeding device, the drying device, the first transfer device and the screening device are sequentially connected, the discharging end of the screening device and the discharging end of the powder feeding device are both connected with the feeding end of the premixing device, the premixing device is used for premixing and mixing hot aggregate and normal-temperature powder to achieve heat balance, and the discharging end of the premixing device is connected with the stirring and mixing device through the second transfer device. The hot aggregate and the normal-temperature powder are accurately metered and then premixed through the premixing device to achieve heat balance, and then the hot aggregate and the normal-temperature powder are put into the stirring and mixing device together with asphalt to be stirred to obtain asphalt concrete, so that the temperature of the hot aggregate can be effectively reduced, and the problem of asphalt smoke generated after local hot aggregate is mixed with asphalt at high temperature is avoided.

Description

technical field [0001] The invention relates to the technical field of construction equipment, in particular to an intermittent asphalt concrete mixing plant. Background technique [0002] Concrete is referred to as "concrete (tóng)" for short, which refers to the collective name of engineering composite materials that use cementitious materials to cement aggregates into a whole. Generally speaking, the term asphalt concrete refers to the asphalt concrete obtained by mixing asphalt as cementing material, sand and stone as aggregate; mixing with water (may contain admixtures and admixtures) in a certain proportion. Because concrete has the characteristics of abundant raw materials, low price and simple production process, its consumption is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades, which make it widely used. [0003] There are many problems in the production process...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a batch type asphalt concrete mixing plant, which solves the problem that the local hot aggregate temperature is too high in the prior art, which causes asphalt smoke to be easily generated when it is mixed with asphalt, thereby causing environmental pollution and affecting Problems in Asphalt Concrete Production Quality

Images