Highway asphalt oxidation treatment process

Abstract

The invention belongs to the technical field of asphalt production, and particularly relates to a highway asphalt oxidation treatment process. According to the invention, an oxidation device used in the method comprises a base, two supporting plates are fixed at the top end of the base, an oxidation tank is fixed between the two supporting plates, a heating ring is arranged on the inner side wallof the oxidation tank, the heating ring is embedded into the inner side wall of the oxidation tank, a rotating shaft is rotationally installed between the two supporting plates and penetrates throughthe oxidation tank, and two or more shifting block sets are arranged on the side wall of the rotating shaft at equal intervals in the circumferential direction of the rotating shaft. According to theinvention, hot air is introduced into the oxidation tank, potassium permanganate is heated to generate a large amount of oxygen to improve the oxygen concentration of the hot air, and asphalt in the oxidation tank is fully oxidized, so that the highway asphalt oxidation treatment process is suitable for areas with low oxygen concentration in air, the application range of the process is widened, and the oxidation efficiency of the asphalt is further improved.

Description

technical field [0001] The invention belongs to the technical field of asphalt production, in particular to a road asphalt oxidation treatment process. Background technique [0002] Highways are roads connecting cities, villages, and industrial and mining bases, built in accordance with national technical standards, and approved by the highway authority. Highways do not include trails naturally formed in fields or rural areas. They are mainly used for cars and have certain technical standards and facilities. It is different from ordinary roads and automobile-only roads. The latter has more and more road grades, so there are two types of secondary roads. Asphalt pavement refers to various types of pavement paved with asphalt materials mixed with mineral materials. Asphalt binder improves the ability of paving aggregates to resist road damage from driving and natural factors, making the road smooth, less dusty, impermeable and durable. Therefore, asphalt pavement is the mos...

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Problems solved by technology

[0003] There are also some technical solutions for bitumen oxidation treatment in the prior art, such as a Chinese patent with application number CN201811052274.X, which discloses a bitumen oxidation treatment process. The patent passes hot air into the bitumen Realize the oxidation treatment of asphalt, and use hot air to stir and dissipate the asphalt at the same time, which improves the full utilization of energy in the asphalt oxidation process, and drives the discharge mechanism to move downward through the displacement mechanism, so as to squeeze out all the asphalt through the bottom plate , the asphalt can be further scraped off the inner wall of the box through the triangular scraper block, reducing the residue and increasing the discharge speed, but it does not solve the problem of oxygen content in the hot air. Because the oxygen content in the air in plateau areas is low, the When entering hot air, the asphalt cannot be fully oxidized, so the effect of oxidation treatment cannot be improved, which directly affects the quality of road asphalt. Especially for small-area road repairs, on-site production of asphalt is often more trouble-free than factory delivery. money

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