High temperature fiberglass cloth bag

High temperature fiberglass bag is a dust removal filter bag mainly made of fiberglass, widely used in high-temperature flue gas purification.

Material and structure: Usually made of 89% glass fiber as raw material, needle punched felt is produced using needle punching technology. The fibers in the felt layer are single fibers with a three-dimensional microporous structure and high porosity. At the same time, the felt is reinforced with a base cloth for sufficient dimensional stability.

Performance characteristics:

It can operate stably for a long time at a high temperature of 240 ℃, and can withstand temperatures up to 280 ℃ in a short time. It can adapt to high heat flue gas conditions such as steel sintering, cement kiln tail, and coal-fired boilers.

Good chemical stability: After immersion treatment with silicone oil, graphite or PTFE, it can resist acidic gas corrosion such as SO ₂ and HCl, with a pH range of 2-11, and can still maintain good stability in long-term high-temperature oxidation environments.

Filtration: Surface coating technology can improve filtration efficiency, with a capture rate of ≥ 99.5% for particles above PM2.5.

Low operating resistance: The initial operating resistance is less than or equal to 800Pa, and the resistance increases steadily over long-term use, which can reduce the energy consumption of the fan.

Technical parameters: Common high-temperature fiberglass cloth bags have a weight of 500-1000g/m ², an air permeability of 10-40m ³/m ²/min, a longitudinal fracture strength of>1200N/5 × 20cm, a latitudinal fracture strength of>1800N/5 × 20cm, and a fracture elongation of<10% in both the longitudinal and latitudinal directions.

Post processing methods: According to the characteristics of dust from different manufacturers, there are often processing methods such as swelling, silicone oil, graphite, film coating, PTFE impregnation, etc., which can increase the performance of high breathability, easy dust cleaning, etc.

Application: Widely used in high-temperature flue gas filtration in industries such as steel, cement, electricity, non-ferrous metals, waste incineration, asphalt concrete mixing, chemical industry, etc., suitable for pulse and high-speed back blowing dust removal methods.