Nomex Filter Bags For Cement

Description

Meta Aramid nomex filter bag is a high temperature fiber, suitable up to 200°C in dry conditions; care is needed when used in moist environments at high temperatures as it is prone to hydrolysis which will chemically degrade the fibers.

The original fiber was known as Nomex® from DuPont though today a number of alternative fibers with the same basic chemistry are available so many applications simply specify "aramid". The fiber is self-extinguishing with an LOI of around 30%.

ACIDS – FAIR
ALKALIS – GOOD
OXIDIZING AGENTS – FAIR
HYDROLYSIS – FAIR
SOLVENTS – GOOD

nomex filter bag is susceptible to hydrolysis in high temperature environments where acid can act as a catalyst – used in the asphalt, cement, quarry and smelting industries. 

Felt Design & Specifying

Filtration is a very complex, technically-involved business where a multitude of factors need to be taken into account when designing systems: temperature, gas velocity, chemistry, dust characteristics and particle size distribution etc.

Our experienced team of technologists can interpret these parameters and design specific filter media to handle the most demanding applications.

Felt Manufacturing

Being a company with well over 20 years of history we have evolved our processes and technologies to the point where we actually specify our manufacturing equipment to optimize the quality of the finished product. Continued investment ensures that the equipment meets the latest requirements for product uniformity and performance.

Material Finishing & Treatments

High performance needle felts for filtration require more technology than simply producing textiles. The materials almost always require heat stabilization and frequently the surface finish needs to be modified to assist with cleaning.

One must also consider the environment in which the products are to operate so a range of treatments has been developed to assist in filtration. Many are based on fluorocarbon technologies to provide a host of benefits including increased dust collection, enhanced resistance to aggressive chemicals, liquid repellency and spark blocking.