The choice of filter cloth
The choice of filter cloth is very important in the filtration process plays a key role in the performance of the filter cloth, directly affect the filtering effect, in order to achieve the desired filtering effect and speed, according to the material particle size, density, Viscosity, chemical composition and filtration process conditions to choose. The company has polyester, polypropylene, nylon, vinylon and other filter cloth, polyester filter cloth excellent acid resistance, polypropylene filter cloth, high elasticity, good acid, alkali, nylon and vinylon alkali resistance, cotton filter cloth can be high temperature , The user according to the actual filter requirements. Cut the filter cloth, the hole spacing can not be too small, otherwise it will plug the feed hole; nylon filter cloth evenly arranged, the filter cloth to use iron and other special tools to cut iron, in order to avoid off-line filter cloth.
Table 3 commonly used filter cloth performance characteristics
Performance Polyester Nylon Polypropylene Vinylon
Poor acid resistance is not good acid
Alkali resistant to weak alkali Good resistance to alkali
Poor conductivity Good Good General
Elongation at break 30% ~ 40% 18% ~ 45% Greater than polyester 12% ~ 25%
Response is good at 10% elongation recovery rate of slightly better than 90% polyester better
Very good wear resistance is good
Heat resistance 170 ℃ 130 ℃ slightly shrink 90 ℃ slightly shrink 100 ℃ contraction
Softening point 230 ~ 240 ℃ 180 ℃ 140 ~ 150 ℃ 200 ℃
Melting point 255 ~ 265 ℃ 210 ~ 215 ℃ 165 ~ 170 ℃ 220 ℃
4.4.1 filter cloth installation:
1) Box filter press filter cloth sub-ordinary cloth and cloth filter cloth two, ordinary filter cloth installation half through the feed through, after the formation of the upper plane alignment. Cloth cloth filter cloth to be used after the feed hole clamp can be clamped flat.
2) plate and frame filter cloth, according to the size of the filter plate and feed form, out of the feed inlet and wash water after the mouth folded in the filter plate, the length and width slightly larger than the size of the filter plate; The size of the hole should be 70% of the corresponding aperture is appropriate (before opening to shrink treatment).
浙江天台丰顿滤料有限公司是一家专业从事：液体过滤袋、工业滤布、滤布、滤袋、除尘袋生产销售的滤布厂家，多年来在液体过滤袋、滤袋、工业滤布、除尘袋生产上积累了丰富的经验和领先的技术。
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