High temperature basalt needle felt filter bag is a new product jointly developed by our company and research institute in June 2006. Its appearance fills the high temperature brand of our country.
50℃ synthetic fiber needled filter blank, basalt needled filter material as a new type of high temperature resistant materials can be used under the working conditions of 350℃ for a long time, and keep the performance unchanged, due to the manufacturing process and raw material formula particularity, compared with similar products performance greatly improved dust removal efficiency and service life.
Basalt fiber is used as filter material of dry filter device, mainly for industrial dust removal and smoke and gas purification. Due to its high strength, high temperature resistance, corrosion resistance, low elongation and other excellent properties, the filter bag made of it has the following characteristics:
1. High mechanical strength, fracture strength is generally above 3000N;
2. Low elongation, basalt fiber itself breaking elongation is only 3%, so it is made of filter bag size stability;
3. Good mechanical properties, can be used at 300℃ for a long time;
4. Good corrosion resistance, can be used in acid and alkali atmosphere;
5. The fabric has high porosity, smooth surface, good air permeability and no-load pressure loss of only 2Pa.
6. High dust collection efficiency, up to 99.5%-99%, especially for dust particles below 0.5mm in diameter, the effect is more obvious;
7. Strong adaptability to dust concentration in flue gas;
8. Large amount of dust, easy to operate and maintain, easy to clean ash;
9. Long service life.
Basalt needle felt technical parameters:
Weight   : 950g/m2
Material   : Glass fiber/P84/PTFE/basalt
Thickness   :   2.5-3.0mm
Air permeability:   8-16m3/m2· min
Longitudinal pull force: >1900N/5× 20cm
Zonal tension: >2000N/5× 20cm
Longitudinal elongation: <10%
Latitude elongation: <10%
Operating temperature:   300℃ Instantaneous 350℃
Features: High temperature resistance