SS 201 Demister Pad In Boiler Steam Drum Air Purification Drift
Eliminator
Description of Demister Pad
Mist Eliminators are designed to remove contaminants from process
air emissions that evolve as mist droplets. We manufactures
Demister pads in several materials like stainless steel 304, 316,
polypropylene, ptfe and other features depending upon model and
includeframes, metal grids etc.
These are used in pulp and paper, waste and water treatment, oil
and gas, biofuel, geothermal power and other general industrial
use.
The diameter of the dispersed droplets in the gas encountered in
normal chemical operations is about 0.1 to 5000 μm. Generally, the
particles having a particle diameter of 100 μm or more are easily
settled due to the rapid sedimentation rate. Generally, droplets
larger than 50 μm in diameter can be separated by gravity
sedimentation; droplets above 5 μm can be used for inertial
collision and centrifugal separation; for smaller droplets, try to
aggregate them to form larger particles, or use fiber filters and
Electrostatic defogger. The wire mesh demister is mainly used for
separating droplets having a diameter of more than 3 μm to 5 μm.
When the misty gas rises at a certain speed and passes through the
wire mesh placed on the grille, the mist collides with the filament
and adheres to the surface of the filament due to the inertia of
the rising mist. The mist on the surface of the filament is further
diffused and the gravity of the mist itself settles, causing the
mist to form larger droplets along the filament to its interlacing.
Due to the wettability of the filament, the surface tension of the
liquid, and the capillary action of the filament, the droplet is
made larger and larger, until its own gravity exceeds the combined
force of the buoyancy of the gas and the surface tension of the
liquid, and is separated and falls. Flow to the downstream
equipment of the container. As long as the conditions such as the
operating gas velocity are properly selected, the defoaming
efficiency of the gas after passing through the wire mesh demister
can reach 97% or more, and the purpose of completely removing the
mist can be achieved.
Product Specification of Demister Pad
(1) standard type
Wire Diameter dw(mm) | Width Tolerance (mm) | Density ρ(kg/m3) | Surface Area α (m2/m3) | Void Fraction ε |
| Flat Wire | Round Wire | ±20 | 150 | Flat Wire | Round Wire | 0.981 |
| 0.1*0.4 | 0.23 | 475 | 320 |
(2) High Penetration
Wire Diameter dw(mm) | Width Tolerance (mm) | Density ρ(kg/m3) | Surface Area α(m2/m3) | Void Fraction ε |
| Flat Wire | Round Wire | ±20 | 98 | Flat Wire | Round Wire | 0.9875 |
| 0.1*0.4 | 0.23 | 313 | 217 |
(3) High Efficiency
Wire Diameter dw(mm) | Width Tolerance (mm) | Density ρ(kg/m3) | Surface Area α(m2/m3) | Void Fraction ε |
| Flat Wire | Round Wire | ±20 | 182 | Flat Wire | Round Wire | 0.977 |
| 0.1*0.28 | 0.19 | 626 | 484 |
As for other specifications, we can supply the products according
to customer's requirements.
Product Feature of Demister Pad
High corrosion and rust resistance.
Acid, alkali and salty resistance.
High mechanical strength.
High filtering efficiency.
Durable and long service life.
Various types for choice.
Convenient for installing and transporting.
Negligible pressure drop, less than 25mm of water gauge
No maintenance or service required
No corrosion or temperature limitations
Easily installed in existing vessels
No limitation on size or shape.
Application of Demister Pad
Petroleum, chemical, light industry, medicine, metallurgy,
aerospace, ship, environmental protection engineering distillation,
evaporation, absorption and other processes in the gas-liquid
separation, gas separation, mechanical equipment, oil and gas
separation.
Installation of Demister Pad
The wire mesh demister is selected from the top-loading type and
the bottom-loading type wire mesh demister: when the position of
the hole is opened on the top of the wire mesh demister, or when
there is no hole in the hole, the top-loading type wire mesh is
selected. Defoamer; when the hole is opened under the wire mesh
demister, the bottom-loading wire mesh demister is selected.
Product Show of Demister Pad
