A temperature-sensitive asphalt heating and mixture precision mixing numerical control integrated device

Abstract

The invention discloses a temperature-sensitive asphalt heating and precision mixing numerical control integrated device, comprising a heating pot, a mixing bin, a weighing device, a stirring pot, a turntable bearing for driving the heating pot to rotate, and a The device can effectively avoid the aging of the matrix asphalt at the bottom of the heating pot by repeated heating, and at the same time, it can avoid the segregation phenomenon caused by uneven stirring of the materials in the stirring pot.

Description

technical field [0001] The invention belongs to the technical field of asphalt mixture heating and mixing equipment, and relates to a temperature-sensitive asphalt heating and mixture precision mixing numerical control integrated device. Background technique [0002] As a composite material, asphalt mixture is composed of coarse aggregate, fine aggregate, asphalt, mineral powder and fiber, and is an important material for paving asphalt pavement. Among them, the heating of the base asphalt and the mixing of the mixture are a very important part, and the uniformity of the heating and mixing greatly affects the quality of the mixture. Generally, in the laboratory, a heating furnace is used to heat the solid base asphalt, and the heated asphalt, aggregates, additives, etc. are mixed by stirring equipment, charged, and compacted to form Marshall specimens and rutting slabs and other specimens. The experimental study can reflect the road performance of the material more appropri...

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Problems solved by technology

[0003] However, the current heating equipment generally adopts ordinary heating furnaces. During the heating process, not only the experimenters are required to constantly stir the base asphalt, but also need to often use a temperature measuring gun to observe the temperature change of the base asphalt, but it still inevitably leads to the bottom Aging of base bitumen after repeated heating

In addition, when we heat the substrate, we usually heat the whole pot to the highest use temperature and store it for a long time, but in practical applications, we don’t need to use the whole pot of asphalt, so the asphalt left in the pot will disappear after repeated heating. It is easy to age and lose adhesion, which will affect the quality of the test piece. Therefore, the current heating equipment not only wastes human resources, material resources, but also wastes energy resources.

[0004] As far as the current mixing equipment is concerned, when loading the mixture, the experimenter usually needs to have a strong sense of quality control, otherwise it will cause too much asphalt to be poured and a pot of material will be discarded

In addition, the stirring motor is usually located on the upper part of the mixing pot, and usually cannot completely and evenly mix the raw materials at the bottom, resulting in agglomeration and segregation

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