For factories operating under high temperature and high corrosion conditions overseas, filter bags, as the "core consumables" of dust removal equipment, often face the problem of "high-temperature softening, corrosion and damage" - ordinary polyester filter bags are prone to deformation above 150 ℃ and need to be replaced after 3-6 months, which not only wastes money but also frequently shuts down and affects production. Fiberglass filter bags, with their characteristics of "resistance to high temperatures of 260 ℃, acid and alkali corrosion, and long service life", have become a "cost reducing tool" for foreign trade factories, suitable for various harsh working conditions worldwide, and can easily help equipment pass environmental certification.
1、 Resistant to high temperatures of 260 ℃: the "durable responsibility" for high-temperature working conditions
The core advantage of fiberglass filter bags is "ultra-high temperature resistance", which is due to their special material structure: using high-strength alkali free fiberglass as the base fabric, the surface is coated with PTFE film, which not only retains the temperature resistance of fiberglass, but also improves the filtration accuracy. It can operate stably in the working condition of 200-260 ℃ for a long time, and can withstand a peak temperature of 300 ℃ in the short term, perfectly solving the "high temperature short board" of ordinary filter bags.
1. High temperature scenario adaptation: covering multiple types of foreign trade factories
Middle East Steel Plant (Sintering Section): The flue gas temperature is stable at 220-250 ℃. Ordinary PPS filter bags need to be replaced twice a year, while fiberglass filter bags have a lifespan of 2-3 years. Although the cost of a single replacement is 15% higher than PPS, the total annual maintenance cost is reduced by 40%;
European waste incineration plants: The flue gas contains sparks and has a temperature of 240-260 ℃. The flame retardant properties of fiberglass filter bags can prevent sparks from igniting the filter bags. Compared with ordinary flame retardant filter bags, the fire risk is reduced by 90%, which meets the safety requirements of EU EN 13285;
Southeast Asian biomass power plants: The temperature of straw burning flue gas is 200-230 ℃, containing a small amount of alkali metal vapor. Fiberglass filter bags are resistant to alkali corrosion and have a lifespan three times longer than polyester filter bags. There is no need for frequent shutdown and replacement, and the annual power generation is steadily increased by 5%.
2. Temperature resistance without sacrificing filtration: taking into account environmental standards
Many high-temperature filter bags sacrifice precision for temperature resistance, while fiberglass filter bags are treated with PTFE film, achieving a removal rate of 99.9% for fine dust above 0.1 μ m and an exhaust emission concentration of ≤ 8mg/m ³. This not only meets the ultra-low emission requirements of the European Union CE and the US EPA, but also meets the upgraded environmental protection standards in Southeast Asia in recent years, avoiding fines for equipment exceeding standards due to insufficient filter bag precision.
2、 Corrosion resistance: a "money saving expert" for acid-base working conditions
The flue gas from foreign trade factories such as chemical, pharmaceutical, and waste incineration often contains SO ₂ HCl、 Corrosive media such as alkali metal vapor can corrode and puncture ordinary filter bags within 1-2 months, while fiberglass filter bags have significantly improved corrosion resistance through "material modification+film protection".
Anti corrosion design: dual protection from material to process
Base fabric anti-corrosion: using alkali free fiberglass, free of easily corroded metal impurities, strong resistance to sulfuric acid and hydrochloric acid with a concentration of ≤ 15%, and a corrosion rate of ≤ 0.02mm/year;
Coating protection: Surface PTFE coating not only improves filtration accuracy, but also isolates corrosive gases from direct contact with the base fabric, forming a "protective barrier", especially suitable for high corrosion conditions in European chemical parks.
3、 Wide adaptability: No need to stock up for different working conditions
Foreign trade factories often face the problem of "multiple working conditions coexisting". Ordinary filter bags need to be purchased according to different working conditions, which puts a lot of inventory pressure. However, the "wide adaptability" of fiberglass filter bags can reduce inventory costs, and the adaptation scenarios cover:
Temperature adaptation: Suitable for use between 20-260 ℃, no need to purchase separately for normal temperature, medium temperature, and high temperature conditions;
Dust adaptation: From coarse dust to fine dust, it can be efficiently filtered with different coating processes;
Equipment adaptation: Compatible with mainstream dust removal equipment such as pulse bag dust collectors and back blowing bag dust collectors, without the need to modify equipment interfaces, suitable for dust removal hosts from different brands such as Europe, America, Japan, and South Korea.
4、 Foreign trade adaptation: compliance+service, seamless implementation
In response to the differentiated needs of overseas markets, fiberglass filter bags have been designed with sufficient emphasis on "compliance" and "localized services" to address the concerns of foreign trade customers
1. Complete international certification: worry free customs clearance and entry into the market
EU market: Passed CE certification and REACH material testing;
North American market: meets EPA's requirements for "safety of filter bag materials" and provides UL flame retardant certification;
Food/pharmaceutical industry: We can provide FDA certified food grade fiberglass filter bags that meet the hygiene requirements of European and American food processing factories.
2. Regional customization: tailored to local working conditions
Middle East high dust scenario: adding a "pre filter layer" on the surface of the filter bag to reduce sand and dust wear and extend its lifespan by 15%;
Nordic high humidity scenario: Conduct hydrophobic film coating treatment to prevent filter bags from getting damp and clumping, and to prevent resistance from soaring;
Southeast Asian rainy scene: moisture-proof packaging is used to prevent the filter bag from absorbing moisture and deteriorating during transportation.
3. After sales support: reduce the threshold for operation and maintenance
Provide multilingual installation manuals, indicating filter bag replacement cycles and maintenance points.
Summary: Cost effective accessories for high temperature and high corrosion conditions
For overseas factories, although fiberglass filter bags are only dust removal accessories, they directly affect the "service life, cost, and compliance" of the equipment - they can withstand high temperatures of 260 ℃ to solve the pain point of "softening and damage", resist corrosion to reduce the cost of "frequent replacement", widely adapt to reduce the trouble of "inventory and adaptation", and with the exclusive compliance and service design for foreign trade, they have become the "preferred accessories" for harsh working conditions such as steel, chemical, and waste incineration. Against the backdrop of continuously upgrading global environmental standards, choosing the right fiberglass filter bag can not only help equipment meet stable standards, but also save real money for factories, making it a "small accessory with great value" for foreign trade dust removal.