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φ1000 mm Round Shape SS304 Vane Pack Mist Eliminator
1. How does Hualai vane pack mist eliminator works?
when the gas containing mist flows through the demister at a certain speed, because of the inertial impact of the gas, the mist and wave plate collide and are attached to the wave plate surface. The multi fold structure of the wave plate of the mist eliminator increases the chance of catching and gathering the mist, and the undeleted mist will catch and gather at the next turn through the same function, so it will work repeatedly, thus greatly improving the efficiency of mist eliminator. After the gas passes through the chevron mist eliminator, there is basically no mist.
2. Advantages of vane pack demister / mist eliminator
1. Lower pressure drop.
2. Resistance to fouling.
3. High tensile strength.
4. Durable and long service life.
5. Custom-made design available.
6. High filtering and separating efficiency.
7. High capacity. It has 30% to 100% more capacity than the wire mesh mist eliminator.
3. Applications of vane pack demister
Vane pack demister is widely used to separate entrained liquid droplets from gas stream, in which the liquid droplets are 8 μm or larger. When the gas stream passes through the vane pack demister and change direction, the liquid droplets are unable to change direction as quick as the gas due to their momentum. So the liquid droplets impact on the chevron blade and then coalesce and form large droplets until drain away.
In the special environment, where there is some small solid particles, vane pack mist eliminator is the better choice for liquid and gas separator than the wire mesh demister.
4. When to use vane type mist eliminator instead of mesh pad?
Larger droplets;
Surge Buffeting;
Foam Problems
Severe Corrosion;
High Liquid Load;
High Gas Velocity;
Low Pressure Drop;
Clogging Particulates;
Accumulated Residues;
Extremely Viscous Liquid.
5. Hualai vane pack mist eliminator datasheet.
| Table 3 data sheet of demister | |||||
| 1. | Project No.: | ||||
| 2. | Equipment name | Vane demister | |||
| 3. | Quantity | In use | quantity | 1 | |
| Spare parts | quantity | 0 | |||
| Total | quantity | 1 | |||
| 4. | Purpose | Removal of slurry droplets in FGD emission And control the dust emission concentration at the outlet of absorption tower | |||
| 5. | Basic design conditions | ||||
| 1) Characteristics of flue gas | |||||
| (1) Name of flue gas | Flue gas after dust removal and desulfurization | ||||
| (2) Flue gas flow at absorber inlet | m3/h | 31000 | |||
| (3) Dust concentration at absorber inlet | mg/Nm3 | ≤20(Standard state dry basis,3%O2) | |||
| Flue gas flow at absorber outlet | m3/h | 32500 | |||
| Flue gas velocity | m/s | ≤2.0 | |||
| (4) Outlet temperature of absorption tower | ℃ | 45 | |||
| (5) pressure | kPa･G | 1.0 | |||
| (6) Expected flue gas composition | See Table 1 | ||||
| (7) 预期浆滴成分 | |||||
| H2O | (liquid) | wt% | ~95 | ||
| Na2S | (solid) | wt% | 4 | ||
| Na2HS | (solid) | wt% | 1 | ||
| Droplet characteristics | |||||
| Density | kg/m3 | ~1020 | |||
| PH | － | 7~10 | |||
| Viscosity | cPa | <3 | |||
| 2) Type of demister | As per order | ||||
| 3) Installation position | Upper part of absorber | ||||
| 6. | Structural design conditions | ||||
| 1) Standards, specifications | As per order | ||||
| 2) Design pressure of absorber | kPa·G | -1.0~+5.0 | |||
| 9) Design temperature(maximum temperature and time of mist eliminator) | Depends on material | ||||
| Shell | ℃/min | ||||
| demister | ℃/min | ||||
| 3) Corrosion allowance | |||||
| 4) Shell size of demister | Inner diameter of absorption section of absorption tower Φ 2.6m | ||||
| 5) texture of material | |||||
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| 304, 316L, 2205, 2507, TA2, etc. | ||||
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Removal of very small droplets can be achieved using a two stage mist eliminator by fitting a mesh pad to the upstream face of the unit to coalesce droplets as small as 4 to 5 microns into droplets in the size range which are easily removed by the vane separator.
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Considering this vane pack mist eliminator product, our customers come from Singapore, Thailand, Canada, Australia, Indonesia, UAE, Italy, UK, etc.