Corrugated plate, oil-water separation system and method

Abstract

The invention provides a corrugated plate, and an oil-water separation system and method. The corrugated plate is wavy and can quickly and efficiently remove oil dirt from degreasing liquid by adopting a hazen shallow pool theory instead of frequently replacing the degreasing liquid, so that the production cost is reduced. The oil-water separation system can enhance the oil dirt removal effect through the corrugated plate, so that the concentration of the oil dirt in a main tank body is kept at a low level, and the quality of a product is improved; furthermore, the oil-water separation system is free from energy consumption and spare part replacing, so that the service life of the oil-water separation system is long; and therefore, the service life of the main tank body can be prolonged, and the emission times are reduced; moreover, the running cost and the maintenance cost are saved, and the production cost is reduced.

Description

technical field [0001] The invention relates to a pretreatment and degreasing system of an automobile painting line, in particular to a corrugated plate, an oil-water separation system and a method. Background technique [0002] The degreasing process is one of the key processes in the pretreatment of automotive coatings. It is usually divided into two types: dipping and spraying on the production line. The degreasing liquid used in the degreasing process will be mixed with a large amount of oil after working for a period of time, which will affect the quality of degreasing, and even lose the cleaning ability, which has a direct impact on the subsequent processes such as rust removal, phosphating, and spraying. Therefore, if the degreasing treatment of the workpiece is not complete, it will inevitably hinder the formation of the phosphating film and affect the adhesion, drying performance, decorative performance and corrosion resistance of the coating. However, the direct o...

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Problems solved by technology

[0006] However, the above two methods have certain limitations: although the gravity separation method does not require additional equipment investment, the gravity separation method wastes more degreasing liquid, so the gravity separation method is only suitable for small batch production occasions; while the filtration adsorption separation The method is to use lipophilic materials to absorb the oil in the degreasing liquid. Due to the difficulty in regeneration of the filter material, the application of the filter adsorption separation method is limited, and regular replacement of the filter material will increase the maintenance cost.

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