Multi-stage purification and reutilization treatment process for industrial lubricating oil

Abstract

The invention discloses a multi-stage purification and reutilization treatment process for industrial lubricating oil. The invention belongs to the technical field of lubricating oil treatment. According to the multi-stage purification and reutilization treatment process for industrial lubricating oil, a metal net filtering mode and a settling tank precipitation separation mode are used for pretreatment, and an oil filter and a PP microporous filter are used for refined filtration after treatment. The lubricating oil can be primarily filtered for multiple times before being treated; subsequentpurification of the lubricating oil is facilitated. In addition, the lubricating oil can be subjected to multi-stage fine filtration after purification treatment; impurities caused by purifying the lubricating oil can be effectively reduced and thus the lubricating oil has the good quality and is convenient to use; by adding the tetrahydrofurfuryl alcohol, the tetrahydrofurfuryl alcohol and the lubricating oil are subjected to mixing precipitation, standing layering is performed, the lubricating oil is separated, and evaporation dehydration is performed by using the oil refining pot, such that the lubricating oil can be conveniently subjected to multi-stage treatment, the lubricating oil can be conveniently subjected to high-quality purification, and the purification efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil treatment, in particular to a multi-stage purification and reuse treatment process for industrial lubricating oil. Background technique [0002] Lubricating oil is a liquid lubricant used on various types of machinery to reduce friction and protect machinery and processed parts. It mainly plays the role of lubrication, cooling, rust prevention, cleaning, sealing and buffering. The sufficient supply and quality of lubricating oil directly affect With the development and construction of national industry, agriculture, national defense, etc., fuel oil guarantees the country's energy supply and provides power for economic construction, while lubricating oil enables it to be used efficiently. With the rapid development of my country's economy, the market demand for lubricating oil is also increasing However, the multi-stage purification and reuse treatment process of industrial lubricating oil ha...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-stage purification and reuse treatment process of industrial lubricating oil, which solves the following shortcomings of the multi-stage purification and reuse treatment process of industrial lubricating oil: when the lubricating oil is purified and utilized, Generally, it is only multi-stage treatment and then single-stage filtration. After purification, there are more impurities in the lubricating oil, resulting in poor quality lubricating oil and affecting the use.