SBR modified road asphalt production device

Abstract

The invention belongs to the field of asphalt production, and discloses an SBR modified road asphalt production device which comprises an outer shell, a sealing cover is fixedly mounted at the top of the outer shell, an inner shell is arranged in the outer shell, the bottom of the inner shell and the bottom of the outer shell are rotationally connected in a sealed mode, and an oil bath cavity is formed between the inner shell and the outer shell. The upper end of the inner wall of the inner shell is meshed with an output shaft of the motor, a lifting pipe is arranged in the inner shell, the bottom end of the lifting pipe is fixed to the bottom of the outer shell through a supporting rod, a driving shaft penetrates through the lifting pipe, the upper end of the driving shaft is rotationally connected with the sealing cover, the driving shaft is connected with the output shaft of the motor through a belt, and spiral blades are fixedly installed on the surface of the driving shaft. Lining plate layers are arranged on the outer wall of the lifting pipe and the inner wall of the inner shell, and a feeding pipe is fixedly installed on the sealing cover. Raw materials on the upper layer and the lower layer are conveyed through the lifting pipe and then fall down after being ground through the lining plate layer, the raw materials in the inner shell are continuously crushed and mixed, and the crushing effect of SBR particles and the mixing effect of the SBR particles and asphalt are improved.

Description

technical field [0001] The invention relates to the field of asphalt production, in particular to an SBR modified road asphalt production device. Background technique [0002] When laying roads, especially on plateaus, high temperature stability, low temperature crack resistance, ductility, viscous toughness, tensile strength and water peeling ability of asphalt are highly required. However, when ordinary asphalt is used for laying roads on plateaus with harsh weather conditions, its performance is far from meeting the requirements. In the hot summer, ordinary asphalt paved roads are often muddy due to the strong ultraviolet radiation on the plateau, and the roads will freeze and crack in the cold winter. Vehicle driving is very unsafe. At present, external additives (modifiers) such as rubber, resin, high molecular polymer, ground rubber powder or other fillers are usually added to asphalt, or measures such as mild oxidation of asphalt are taken to make asphalt or asphalt...

AI Technical Summary

Problems solved by technology

[0003] SBR modified asphalt is the most commonly used modified road asphalt. In the process of producing SBR modified asphalt, it is necessary to mix styrene-butadiene rubber (SBR) into the asphalt in a certain proportion. Usually, shear pumps or colloid mills are used to process SBR. Grinding and mixing with asphalt, but the existing shear pump or colloid mill usually SBR is only crushed once, and the obtained SBR particles have a large particle size, and the modification effect is not good after mixing with asphalt

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