Aokai provides filter media solutions for abrasive, corrosive, high-temperature, and explosive dust filtration, and specializes in dust collection processes in asphalt mixing, chemicals, cement, metals, power generation, waste-to-energy, renewable energy, woodworking, and many other demanding industries.
Choosing the right filter media with its corresponding characteristics that are best suited for your application can help boost the performance and longevity of your dust filtration system.
| Fibre types |
Weight |
Continuous temperature |
Peak Temperature |
| PE |
450-600 |
130ºC |
150ºC |
| PAC |
500-550 |
125ºC |
150ºC |
| PPS |
500-650 |
160ºC |
190ºC |
| Aramid |
400-600 |
204ºC |
250ºC |
| PTFE |
750-800 |
240ºC |
260ºC |
| P84 |
500-550 |
240ºC |
260ºC |
| GL |
750-900 |
240ºC |
260ºC |
Different fibers provide each media with different dust filtration characteristics. Filter media can be further treated to improve their filtration efficiency and performance, such as lengthened filter media life cycle, better dust cake release, reduced valve pulsing, more consistent airflow, reduced differential pressure, and reduced downtime and maintenance.
| Typical Dust Properties with the Appropriate Surface Finishes |
Singe |
Calendar |
Silicone |
Hydrophobic Oleo phobic |
Chemical Protection |
Dispersion |
Microfiber |
| Free Flowing |
☆ |
|
|
|
|
|
|
| Agglomerating |
|
☆ |
|
|
|
|
|
| Corrosive |
☆ |
|
☆ |
|
|
|
|
| Humid |
|
|
|
☆ |
☆ |
|
|
| Sticky |
|
☆ |
|
☆ |
☆ |
☆ |
|
| Acid / Alkaline |
|
|
|
|
|
☆ |
|
| Ultra fines |
|
|
|
|
|
|
☆ |
Filter Bag Types and Application of Aokai Environtec
| Fiber Types |
Product Code |
Continuous Temperature |
Peak Temperature |
Application |
Remark |
|
| Polyester |
PE |
130ºC |
150ºC |
Applicable to mine, limestone, cement, iron and steel industries, alumina delivery, electrolytic aluminum, non-ferrous metal production, wood processing and pharmacy industry. |
Good resistance to oxidation, while limited resistance to acids and alkalis. Service life will be affected by hydrolysis at high temperature. |
| Polyacrylnitrile |
PAC |
125ºC |
150ºC |
Applicable to detergent, spray dryer, coal mill and power plant industries. |
Good resistance to hydrolysis. |
| Homo polymer |
| Polypropylene |
PPS |
160ºC |
190ºC |
Applicable to the working conditions with low-oxidation gas from coal-fired boiler, waste incineration, metal smelting, and chemical industries. |
Moderate resistance to oxidation, but excellent resistance to acids, alkali's and hydrolysis. |
|
| m-Aramide |
Nomex / Conex |
204ºC |
240ºC |
Applicable to asphalt, non-ferrous metal production, ceramic, glass industries , cement, and blast furnace in steel factories. |
Service life will be affected by hydrolysis at high temperature. |
| Polyimide |
PI / P84 |
240ºC |
260ºC |
Applicable to the working conditions with corrosive gas, such as chemical, metal smelting, waste incineration industries, cement kiln and coal-fired boiler. |
Excellent resistance to high peak temperature. |
| Polytetrafluoroethylene |
PTFE |
240ºC |
260ºC |
Applicable to the working conditions with high-corrosive gas, such as chemical, metal smelting, waste incineration industries, cement kiln and coal-fired boiler. |
Excellent resistance to all chemical influences. |
|
| Fiberglass |
GL |
240ºC |
260ºC |
Applicable to cement kiln filter, power plants, municipal waste incinerators. |
Excellent resistance to oxidation. |
| Sensitive to mechanical stress. |
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