EVERMESH PAD MIST ELIMINATOR

WHAT IS EVERMESH MIST

EVERMESH MIST ELIMINATOR is fabricated in pad form from symmetrical interlocking loops of knitted metal wire or plastic monofilaments. The pad with a high free volume and large impingement area, can be installed in any existing or new process vessel to provide separation efficiencies up to 99% for particles down to five microns at pressure drops in the vicinity of 25 mm WG. The EVERMESH MIST ELIMINATOR is a static, in-line device and in a majority of the cases it can be installed in the evaporator, scrubber, pressure vessel etc., without a special housing. There is practically no maintenance required except for cleaning when used in fouling services.

HOW EVERMESH MIST ELIMINATOR

When vapour carrying entrained liquid droplets or mist passes through the EVERMESH MIST ELIMINATOR, the vapour passes freely through the layered mesh structure of the EVERMESH MIST ELIMINATOR but the liquid droplets, having greater inertia, contact the large wire surface exposed and are briefly held there. As more droplets collect, they coalesce and grow in size and become large enough to drain back into the system. The overhead product is pure vapour containing practically no liquid.

DESIGN AND ENGINEERING DATA

The separating action of a separator largely depends upon the contact surface area necessary for impingement which must be evenly distributed. Generally speaking, a higher free volume leads to a lower pressure drop. In critical cases, it may be necessary to decide whether pressure drop or efficiency should be sacrificed. However, the EVERMESH MIST ELIMINATOR allows the greatest possible efficiency at the lowest possible pressure drop.

EFFICIENCY

Normally EVERMESH MIST ELIMINATOR will remove droplets down to 5 microns with an efficiency upto 99%. This efficiency will vary depending upon the particle size distribution and other operating conditions. Furnished in a wide variety of mesh styles, the EVERMESH MIST ELIMINATOR offers collection efficiency and pressure drop combinations that can be suited exactly to specific process requirements. Special design are now available with higher efficiencies for specific applications.

APPLICATION CONFIGURATION

PRESSURE DROP

Pressure Drop is also a function of separator specifications and is less than 25 mm WG for a majority of applications. In vacuum service, high efficiency is routinely achieved with pressure drop of the order of 5 mm WG.

EVERMESH MIST ELIMINATOR MAKES ANY GOOD PROCESS BETTER

EVERMESH MIST ELIMINATORS

DESIGN VELOCITY

The maximum allowable vapour velocity. U, for most systems is calculated according to the equation given below.It is suggested that the design velocity should be 60-75% of U to allow for surges and upset conditions. However, excellent performance is obtained in most systems for velocities 30 - 110% of the maximum allowable vapour velocity. For high pressure & vacuum services the constant K needs a specific design.