Multi -functional filter bag

The utility model relates to a multi -functional filter bag, including outer surface coating and inner surface coating, be equipped with wave layer, high temperature resistant layer, acidproof alkali layer and oxidation resisting layer between outer surface coating and the inner surface coating, the wave layer sets up between high temperature resistant layer and outer surface coating, acidproof alkali layer sets up between inner surface coating and high temperature resistant layer, the oxidation resisting layer sets up between inner surface coating and acidproof alkali layer, the utility model discloses the scheme is through setting up wave layer, high temperature resistant layer, acidproof alkali layer and oxidation resisting layer, great improvement the anti -deformation performance of filter bag, heat resistance, antioxidant activity and resistance to acids and bases can, durable has guaranteed the life of filter bag to have satisfied the production needs. 本实用新型涉及种多功能滤袋，包括外表面涂层和内表面涂层；所述外表面涂层和内表面涂层之间设有波浪层、耐