| Airslide® / Pump Fly Ash Handling |
Power Plant Baghouse Airslide® Gathering System
"Since the installation of this system in 1995, we have replaced one 4-foot section of Airslide® fabric. Other than that, the system is nearly maintenance free."
- Glenn Outland, Plant Engineer, Roano ... Read more
|
| Dilute Phase (pressure tank)
Dense Phase Fullveyor (shown)
Sand-like consistency
This is the most abrasive ash ... Read more
|
| Combination Vacuum / Pressure Dilute Phase Fly Ash Handling |
| Removes ash from hoppers sequentially under vacuum, then transfers for pressure conveying to silo (double handling of ash)
Limited vacuum distance; "unlimited" pressure distance
Transfer station demands significant real estate ... Read more
|
| Dilute Phase Pressure Fly Ash Handling |
| Removes ash from hoppers sequentially using pressure tank as line charger
Traditionally large quantity of valves and controls
Can operate in dilute to dense flow regimes
Requires large amount of headroom under hoppers ... Read more
|
| Fly Ash Storage Fluidizing Withdrawal and Loadout Facilities |
| Receives fly ash from primary conveying system
Steel or concrete silo, flat bottom with FLS low-power Airslide reclaim(quadrants and low pressure)
Aeration is often with heated air
Dry loadout to PD trucks
"Wet" loadout to open top trucks
B ... Read more
|
| Modu-Flo MT Dense Phase Ash Handling |
| Simple, but heavy-duty components for long life and reliability
Simplified controls result in reduced system and installation costs
Only one valve in contact with the conveyed material
Low-velocity conveying for greater efficiency and cost effe ... Read more
|
| Removes ash from hoppers sequentially, completely under vacuum
Limited capacity and convey distance
Most inefficient power consumer of all fly ash handling methods
Requires least headroom under hoppers
"All leaks are inward" – which is good a ... Read more
|
|
System installed usually as part of an SCR (NOx reduction technology) Reagents include hydrated lime, sodium bicarbonate, trona, activated carbon and MgO Relatively low injection rate ( Key elements are the metering stack-up (variable speed ... Read more
|
| Powdered Limestone
Convey rates commensurate with process requirements (1 to 20 STPH)
Pressure conveying in dilute phase. Utilizes feeder/airlocks, blowers, and splitters
Key elements are the rotary airlock and the splitter
Flow Splitter
... Read more
|
| Unloading Pebble Lime From Barges, Ships & Trucks and Inplant Transfer Systems |
| Water Based Unloading
American Electric Power, Gavin Plant 2 x 400 MTPH
PD Truck Unloading
Rate usually limited to 15 – 20 STPH
Suitable for most bulk products
Most PD trucks use on-board positive displacement blower for motive air. ... Read more
|
| Unloading Pebble Lime From Rail Cars |
| Rail Car Unloading: Gravity / Pressure Systems
Best for high rate unloading
Suitable for coarse product (pebble lime)
Utilizes undertrack hopper to dump entire car, then pressure tanks or feeder/airlocks for line charging
Can be designe ... Read more
|
|
|