Waste mineral oil atmospheric and vacuum distillation device based on reduced pressure cutting fractionation

Abstract

The invention relates to the technical field of fractionation, in particular to a waste mineral oil atmospheric and vacuum distillation device based on reduced pressure cutting fractionation. The device comprises a fractionation structure and a condensation structure installed on the side face of the fractionation structure, the fractionation structure comprises a fractionation tower, a plurality of discharging ports are formed in the side face of the fractionation tower, a pipeline structure is arranged on the outer side of the fractionation tower and comprises an installation pipe, the installation pipe is connected to the discharging ports in the side face of the fractionation tower, and a first installation hole and a second installation hole are formed in the installation pipe, a pressure reduction structure comprises a partition plate, a round hole is formed in the partition plate, a plug is inserted into the round hole and is of a conical structure, a sliding column is arranged behind the plug, a connecting column is arranged at the tail end of the sliding column, the sliding column is connected into the connecting column, the connecting column is connected into the first installation hole, and a first spring is arranged outside the sliding column in a sleeving mode and located between the plug and the connecting column. The invention aims to solve the problem that bubbles are generated in a condenser pipe due to non-uniform components in the mineral oil discharge process.

Description

technical field [0001] The invention relates to the technical field of fractionation, in particular to an atmospheric and vacuum distillation device for waste mineral oil based on vacuum cutting fractionation. Background technique [0002] Cutting fractionation refers to the process of separating crude oil into several parts with different boiling point ranges by using the characteristics of different boiling points of the compounds that make up petroleum in the field of crude oil. Cutting fractionation is the process of heating crude oil products to make them into gases and then The method of liquefying and collecting it through the condensation structure, in the process of cutting and collecting, due to the non-uniform product of the raw material itself, the content of various components of the same volume of waste mineral oil is different, when the content of a certain oil is less, the corresponding export Part of the gas will be taken out, and the gas will generate bubbl...

AI Technical Summary

Problems solved by technology

[0002] Cutting fractionation refers to the process of separating crude oil into several parts with different boiling point ranges by using the characteristics of different boiling points of the compounds that make up petroleum in the field of crude oil. Cutting fractionation is the process of heating crude oil products to make them into gases and then The method of liquefying and collecting it through the condensation structure, in the process of cutting and collecting, due to the non-uniform product of the raw material itself, the content of various components of the same volume of waste mineral oil is different, when the content of a certain oil is less, the corresponding export Part of the gas will be taken out, and the gas will generate bubbles in the condensation tube. The bubbles reduce the contact area between the vaporized mineral oil and the tube wall, which is not conducive to cooling. At the same time, when the cooled mineral oil is discharged, the bubbles at the outlet will It will cause mineral oil to splash, which is not conducive to collection. The purpose of the present invention is to solve the problem of air bubbles in the condensation pipe due to uneven composition during the discharge of mineral oil

Images