For the removal of liquid droplets and mists from air streams
Four styles of mist eliminators are offered for the removal of liquid droplets and mists from air streams. Mist eliminators offer >99% removal efficiency.
- Chevron Curved Blades: for maximum economy with low pressure drop 2-6m/s gas velocity.
- Kimre Composite Mesh Pads: for highest efficiency removal over 1μm for 1-3m/s gas velocity.
- Packed Beds: for over 10μm for 1-3m/s gas velocity.
- Cyclone Separators: for contaminated air streams that may plug or precipitate.
Pilot Plant available on request.
Chevron Curved Blades
Chevron-type mist eliminators work on the principle of direct impaction combined with centrifugal force. The liquid droplets are collected in a series of troughs located in bundles of parallel curved blades.
- Removal efficiencies of 99+% over a range of gas velocities of 2m/s to 6m/s.
- Design optimises moisture removal and pressure drop to provide most economical system.
- Modular units accommodate a wide variety of vessel cross sections including round, rectangular and irregular shapes for optimum effect.
- Wide range of module sizes for specific applications.
- Low installation costs.
- Smooth surfaces minimise solids buildup; units seldom require maintenance. Where flush sprays are required, standard 35mm blade spacing permits easy penetration.
- Highly corrosion-resistant and can withstand a wide range of temperatures, depending on material of construction. Available in plastics and stainless steel.
Kimre Composite Mesh Pads
Kimre Composite Mesh Pads work on the principle of direct impaction. The liquid droplets are collected in direct collision with structured, interlocked monofilaments within the mesh pad. Because particle size distribution and flow conditions are subject to unpredictable variations or in-plant data on them are not fully or completely known, Kimre has developed composite pads for stagewise removal. These uniquely designed B-GON Mist Eliminators have several layers of differing coarseness. Heavy loads of solid particulates or
liquids can be stopped with coarse styles while less coarse styles eliminate small liquid droplets.
- Removal efficiencies of 99+% for droplets and particlates above 1 micron over a range of gas velocities of 1m/s to 3m/s.
- Highest collection efficiency of any material. Collection efficiencies are much higher than wire mesh pads as Kimre pads have 93% of the fibres perpendicular to the gas flow.
- The number of layers in a required mist eliminator can be determined experimentally or calculated based on data from Kimre.
- The composite pads are a robust design and less sensitive to fluctuating operating conditions.
- Available in a range of plastics to suit the service conditions.
- Polypropylene is the most commonly used material.
- Mesh pad packs are light in weight so are easily handled and installed.
- Can be made into cassettes so that they can be removed and replaced in a short time, eg for cleaning.
Packed bed mist eliminators work on the principle of direct impaction. The liquid droplets are collected in a direct impact with a portion of the packed bed media. Armatec typically supplies this style of mist eliminator with Tellerette Type 2R as standard. More information on this packing can be found in a specific bulletin on Tellerette packing.
- Removal efficiency of 99+% over a range of gas velocities of 1m/s to 3m/s for particle sizes 10 microns and over. These gas velocities and particle sizes are as typically found in packed bed scrubbers
- A 300 mm deep packed bed of Tellerettes Type 2R will remove 99+% of droplets 10 to 1500 microns in size.
- Extremely low pressure drop due to open nature of packing.
- Packing placed by random dumping onto a grid of packing support plates.
- Packing is available in a range of plastic materials. Polypropylene is standard and is moulded in New Zealand.
- Tellerettes Type 2R are moulded in New Zealand and are readily available ex stock.