Coal tar advanced treatment processing system

Abstract

The invention relates to the technical field of coal tar advanced treatment processes. The invention relates to a coal tar deep treatment processing system. The system comprises a coal tar heating andpurifying device, the discharging end of the coal tar heating and purifying device is connected with a feeding hole of a soft asphalt preparation device through a conveying pipeline, a hard asphalt preparation device is arranged between the soft asphalt preparation device and the coal tar heating and purifying device, and the middle section of the conveying pipeline is spirally and tightly woundon the outer side wall of the hard asphalt preparation device. According to the system, deep processing treatment is carried out on coal tar to generate required products including hard asphalt, softasphalt and other byproducts, the whole process is relatively convenient, the coal tar is used as a heat source to realize automatic heating in the hard asphalt production process, the production is more energy-saving and environment-friendly, the cooled coal tar is reused as a raw material for producing the soft asphalt, the whole process is reasonable in design and efficient, and rapid production of two different types of asphalt can be effectively ensured.

Description

technical field [0001] The invention relates to the technical field of coal tar advanced treatment technology, in particular to a coal tar advanced treatment processing system. Background technique [0002] Black or dark brown viscous liquid with pungent odor produced during carbonization of coal, referred to as tar. Coal tar can be divided into low-temperature coal tar, medium-temperature coal tar and high-temperature coal tar according to the carbonization temperature. Coal tar obtained in coke production belongs to high-temperature coal tar; it is a coke oven gas purification product condensed and separated during the cooling process of crude gas one. [0003] Coal tar is a complex mixture of highly aromatic hydrocarbons, most of which are polycyclic and condensed ring compounds with or without side chains and heterocyclic compounds containing oxygen, sulfur, and nitrogen, and contain a small amount of Aliphatic hydrocarbons, cycloalkanes and unsaturated hydrocarbons, a...

AI Technical Summary

Problems solved by technology

[0007] However, the existing systems for the deep processing of coal tar to produce asphalt usually have a poor treatment effect, and the purification of the asphalt produced by coal tar and subsequent processing, separation and classification cannot meet higher requirements, so that when using coal tar to manufacture asphalt products Often there are lower yields and poorer quality

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