Finish for Pyrophoric Dusts and Sparks
Especially in metallurgical processes, hot, sometimes burning particles come into contact with the needle felt. The product lines FireGuard, PyroGuard and BlockGuard protect the filter media from these dusts.
- Surface image: with FireGuard treated needle felt
FireGuard is a high-tech p-aramide surface finish. It increases the resistance of the needle felt to flying sparks. FireGuard also offers excellent resistance to abrasion and mechanical wear.
- Protection from flying sparks
- Thermally resistant even at high contact temperatures
- Extended operational life
Areas of application: e.g. in the metalworking industry and in the non-ferrous metal industry
- Cross-sectional image: with BlockGuard treated needle felt
BlockGuard consists of a layer of spark resistant Preox-Fibres. It is mainly used on Polyester-needle felt and offers a solution for occasional sparks in the raw gas stream of the dust collector.
- Benefits at a glance:
- Basic protection from occasional sparks
- Very good price-/performance ratio
- Excellent pressure loss
Areas of application: in particular for dedusting in the metalworking industry and non-ferrous metal industry
- Cross-sectional image: with PyroGuard treated needle felt
PyroGuard consists of a expanded Graphite top layer. This increases the filtration surface and protects the filter media from red hot dust particles that arise in connection with pyrophoric dusts in steel mills. PyroGuard may be exposed to continuous temperatures of 120°C. It can also withstand short-term peaks temperatures of up to 150°C.
- Benefits at a glance:
- Protection against pyrophoric dusts or flammable dusts
- Lower dust deposits in the needle felt
Areas of application: dedusting of pyrophoric or flammable dusts and occasional sparks, as they can be experienced in steel plants with injection of activated carbon for dioxin reduction.
