Oil-water separation device and oil-water separation method

Abstract

The invention discloses an oil-water separation device and an oil-water separation method. The oil-water separation device comprises an air floatation box body, an air releaser, an air compressor, a lifting frame body, a scraping strip, a slag leading funnel, a filter frame and a lifting mechanism. The oil-water separation method comprises the following steps: opening a water injection valve to inject clear water into the air floatation box body; starting the air compressor, and checking the working state of the air releaser; adjusting the pH value of sewage to 7.5-8.5, adding a coagulant and a coagulant aid into the sewage, and carrying out uniform stirring; opening a liquid inlet valve, pumping a certain amount of sewage into the air floatation box body, and allowing the air releaser to continuously work to release air for 15-25 min; opening a liquid discharge valve to discharge a part of liquid in the air floatation box body to a clean water tank; and subjecting the liquid in the air floatation box body to slag scraping once every 2-3 hours. The oil-water separation device is reasonable in structural design, has the advantages of stable operation, reliable performance and high automation degree, can effectively realize oil-water separation of oil-containing sewage, realizes up-to-standard discharge of the sewage, and avoids pollution to the environment.

Description

technical field [0001] The invention relates to the technical field of industrial cleaning, in particular to an oil-water separation device and a separation method. Background technique [0002] The cleaning machine in the industrial field is mainly used to clean and dry the workpiece with oil or dirt attached to the surface. During the cleaning process, under the action of the water jet of the cleaning machine, heat energy and metal detergent are used to make the oil and dirt on the surface of the workpiece wet and dry. Soften and separate from the workpiece, and then the dirt particles will be taken away by the cleaning fluid, so as to achieve the purpose of cleaning. The used cleaning solution contains a lot of grease and oil. If the oil-water mixture cannot be effectively separated, it can only be treated as sewage, which not only wastes resources, but also pollutes the environment. Contents of the invention [0003] In order to solve the deficiencies of the prior art...

AI Technical Summary

Problems solved by technology

The used cleaning solution contains a lot of grease and oil. If the oil-water mixture cannot be effectively separated, it can only be treated as sewage, which not only wastes resources, but also pollutes the environment.

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