Sludge oil/aging oil treatment equipment

Abstract

The present invention discloses a slop oil treating device, including a pretreatment device, a solid-liquid separator, a demulsification nucleus-increasing treating device, a squeezing filter press, a three-phase separator, a buffer tank, a feeding pump, a circulating pump, a conveying pump, and an outputting pump. The slop oil is subjected to a pre-heating at a temperature ranging from 90°C to 92°C in the pretreatment device, and then conveyed to the solid-liquid separator for separation. Solid residue after a first-stage separation enters the squeezing filter press for solid-liquid squeezing. The squeezing filter press discharges the squeezed solid residue and conveys the squeezed waste water to the demulsification nucleus-increasing treating device. Oil and water after the first-stage separation enter the three-phase separator for second-stage highspeed centrifugal separation. Oil separated by the three-phase separator is conveyed to the buffer tank, and conveyed to a storage tank through the outputting pump, water separated by the three-phase separator is conveyed to a waste water treatment workshop for processing, and emulsion separated by the three-phase separator is conveyed to the demulsification nucleus-increasing treating device for a nucleus-increasing pretreatment, and then returned to the pretreatment device and the solid-liquid separator.

Description

technical field [0001] The invention relates to the technical field of waste oil treatment, in particular to waste oil / aging oil treatment equipment. Background technique [0002] Dirty oil is also called aging oil in the petrochemical industry, which is a highly stable oil-water emulsified mixture. Usually the water content (BS&W) is between 15% and 80%. This strong emulsifier is not sensitive to chemicals, and there is basically no oil-water separation after standing for a long time. [0003] Laboratory studies have shown that oil-water emulsification, whether it is water-in-oil or oil-in-water, has a solid suspension called milk core. The diameter of the milk core is distributed between 0.05μm-1200μm, and the specific gravity is 1.2-2.8g / cm 3 between. The relationship between the diameter and specific gravity of suspended solids, the physical and chemical properties of oil and the physical and chemical properties of water, and the stability of emulsions is very compl...

AI Technical Summary

Problems solved by technology

After the demulsifier is demulsified, the emulsion core usually enters the oil phase, and the larger particle size may enter the water phase, but this will affect the oil content of the water phase (OIW)

In short, as long as the suspended solids in the emulsion can be effectively removed, the problem of oil-water emulsification will be solved smoothly. The current treatment equipment and technology need to be further improved.

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