Introduction of fiber demister :
The fiber demister and filtration system, also known as "fiber
filter" or "candle filter", adopts the company's unique technology
to develop and produce, which can effectively control fog
emissions, capture and remove soluble droplets in the air stream,
and its filtration efficiency for sub-micron small droplets is as
high as 99.99%. It can effectively filter pollutants or harmful
substances in air streams and industrial gases, and can even
collect available substances from heavy liquids, which is very
suitable for removing submicron and liquid aerosols in gases and
air streams. It has the characteristics of high efficiency, long
life and low cost.
The fiber demister consists of two concentric screens or parallel
flat screens filled with compressed fiber pads.
Fiber demister are individually designed and manufactured with
enclosures made of a variety of alloys, thermoformed plastics or
fiberglass reinforced plastics. The compressed fiber bed is made of
special glass, ceramic, polypropylene, teflon or polyester. It
turns out that this type of mist eliminator is very suitable for
sulfuric acid plants, nitric acid plants and hot phosphoric acid
plants; Chlorine and other chemical plants; Pulp mill; Textile
mills; Asphalt saturation tower; Food processing; Chrome plating
process; Turbine lubrication tank exhaust pipe and plastic molding.
Applications containing fluoride, high pH or steam can use
specially made carbon fibers.
| Type | Effect | Process parameter | Remark |
Pressure loss
(mmH2O) | Gas velocity range
(m/s) |
| TGW15 | 100% > 1μm | 37~225(dry)
75~450(wet) | 0.05~0.25 | High-speed |
| 98% 0.5 - 1μm |
| B14 | 100% > 3μm | 78~335 | 0.1~0.35 | High-speed |
| 98 - 99% < 3μm |
| B12 | 100% > 3μm | 40~260 | 0.1~0.6 | High-speed |
| 95% 1 - 3μm |
| 80% 0.5 – 1μm |
| G35 | 100% > 3μm | 30~470 | 0~2.5 | High-speed |
| 85 – 90 % 0.5 - 3μm |
| 60 – 70% 0.5 – 1μm |
| G25 | 100% > 3μm | 12~400 | 0~2.5 | High-speed |
Structure of fiber demister :
The typical fiber demister is composed of tubular fiber bed element
(size is customized according to the working condition), bracket,
flange, outer cover pressure vessel and other components.
Classification of fiber demister :
According to the trapping mechanism of fiber demister, fiber
demister can be divided into low-speed type and high-speed type.
The low-speed fiber demister is an efficient fiber demister based
on Brown diffusion trapping, which is characterized by low gas
velocity, between 0.08 and 0.2m/s, and is used to trap fog
particles with an average of less than 1μm, and the trapping
efficiency is between 94% and 99.7%. For fog particles larger than
3μm, the capture efficiency is 100%. This form of fiber demister
has a thick and compact fiber bed, a fine fiber, and a resistance
between 490 and 1960Pa. The size of the resistance is related to
the fiber filling density of the fiber demister element, the
selected gas velocity and the de-fogging efficiency required by the
user. If the user requires higher de-fogging efficiency and lower
resistance, the number of de-fogging elements must be increased.
High-speed fiber fog eliminator is a fiber fog eliminator that
traps fog particles by inertial collision and interception, which
is characterized by high gas velocity, between 2.0 ~ 2.5m/s, to
trap 1 ~ 3μm fog particles, the capture efficiency is about 97%,
and the resistance is between 1470 ~ 2450Pa.
Features of fiber demister :
Reduce or eliminate visible chimney plume.
Design capacity can be adjusted without limitation.
Ensure that the pressure drop is less than 40 mm (1.5 ") W.G.
Interchangeable with existing fiber pad equipment.
Capture submicron particles with a diameter of 0.1 micron or less.
Property of fiber demister :
The selection of fiber demister should be accurately calculated
according to the gas flow, pressure and temperature under the
actual working conditions of the enterprise to confirm the size,
form, number and placement of the demister components to ensure
that the national standards for pollutant emission in relevant
industries are fully met.
Application of fiber demister :
Fiber demister is specially used to remove various fog particles in
the air stream, not only can remove large particles in the air
stream (diameter > 3μm), but also very effective for removing
sub-particles (diameter < 1μm). Has a certain self-cleaning
ability, can achieve zero maintenance.
It can be widely used in the industrial production process to
remove sub-micron liquid droplets and soluble solid particles in
the gas, to protect downstream equipment, purify process gas,
recover available solvents and oils, and eliminate air pollution.
