Fine filtering process and device for dry-cleaning solvent

Abstract

The invention discloses a dry cleaning solvent finely filtering method. A dry cleaning solvent passes through fiber strand formed by fiber yarns and passes through absorbing substance. The device adopted in the method is a box body; wherein a partition plate is arranged in the box body, the box body is divided into a filtering-waiting solvent box and a clean solvent box by the partition plate, the upper part of the filtering-waiting solvent box is provided with an inlet; the lower part of the clean solvent box is provided with an outlet; the partition plate is provided with a hole; and the fiber strand formed by fiber yarns is inserted in the hole. The invention has the advantages that the structure is simple, the volume is small and the manufacturing cost is low, thus thoroughly solving the technical problems that a dry cleaner can not totally filter oil solvents and dry cleaning solvents and circularly uses dreggy dry cleaning solvents to wash clothes for a long time. By the invention, carbon dichloride solvent is filtered before distillation; therefore, basically, no deposit exists before distillation, thus greatly reducing the frequency of cleaning a distillation box and reducing the chance that a human body contacts the carbon dichloride solvent.

Description

technical field [0001] The present invention relates to the purification and filtration of the garment dry-cleaning solvent after use in the field of garment dry-cleaning. Specifically, the invention relates to a dry-cleaning solvent capable of thoroughly filtering out impurities in the dry-cleaning solvent and having a simple structure, stable performance, small volume and low cost Fine filter unit. Background technique [0002] At present, the filters used in clothing dry cleaning machines all use filter paper or a barrel filter filled with an activated carbon particle adsorption layer between two layers of filter paper. The role of the filter paper layer is to filter out solid impurities in the dry cleaning solvent, and the role of the activated carbon particle adsorption layer is to absorb soluble impurities in the dry cleaning solvent. In fact, the above-mentioned filter paper layer can only filter out larger particles of solid matter, but fine solids cannot be filtere...

AI Technical Summary

Problems solved by technology

The grids formed by the interweaving of these fibers are almost all on one plane. As long as the blocked solid matter forms a thin layer of deposits on the surface of the filter paper, the fiber grids on the filter paper will be covered and blocked by the deposits. As a result, the permeability of the filter paper is reduced, and the filtration speed is severely reduced, with a decline of four-fifths.

In order to achieve a certain filtration speed, this utility model application adopts multiple purification units connected in parallel, which makes the purification structure complicated, the volume is too large, and the cost is high. Especially in the above utility model, solid substances and soluble impurities in the dry cleaning solvent are filtered It is completed by a powdered adsorption layer. Once cracks appear in the powdered adsorption layer when it is shaken during manufacturing or use, it will not work normally

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