A metal material company in Yangzhou City produces 860000 tons of slag powder annually (540000 tons of blast furnace slag powder and 320000 tons of steel slag powder), which generates high humidity and sulfuric acid containing dust during the production process. The filter bag adopts acrylic film coated filter bag, which effectively deals with the acidic water vapor (pH value as low as 3-4) generated during slag grinding, and avoids frequent replacement of polyester filter bags due to insufficient acid resistance. The annual profit of the project exceeds 100 million yuan, and the long lifespan of the filter bag reduces the frequency of downtime maintenance, ensuring continuous production.
