A scraper for a forward osmosis membrane

By designing a curved end scraper and an adjustment mechanism, the problems of uniformity and base membrane damage in the production of forward osmosis membranes by traditional scraping equipment have been solved, achieving an efficient and stable membrane scraping process.

CN224332604UActive Publication Date: 2026-06-09宁波辰灏科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
宁波辰灏科技有限公司
Filing Date
2025-07-04
Publication Date
2026-06-09

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Abstract

The utility model relates to a forward osmosis membrane doctor blade for uniform coating, which is characterized by the following technical solutions: one end of the blade body is designed as a circular arc end, which makes the one end of the blade body more smooth, and the circular arc end is less likely to stick to slurry than a wider flat blade. Meanwhile, an adjusting mechanism is arranged at the two lifting lugs. When adjusting the distance between the circular arc end and the base film, the circular arc end is moved to contact the surface of the base film by the driver. After contact, the adjusting micrometer is adjusted so that the screw rod of the adjusting micrometer abuts against the top of the lifting lug and the adjusting micrometer is zeroed. Then, the adjusting micrometer is adjusted to the required distance, at which time the adjusting micrometer is separated from the top of the lifting lug. Then, the blade body is lifted by the driver so that the top of the lifting lug contacts the adjusting micrometer. In this way, the thickness, yield and uniformity of the coating can be controlled without damaging the structure of the base film and maintaining stable operation of the production line.
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