WRBA Annual Conference Minutes
Port Angeles, Washington
March 11-13, 2014
Click on presentation names to open
Q: For material with higher moisture, how can you access the silo if it gets plugged?
A: Yes, wet fuel can stick and you can unload the silo
Q: Turn-down ratio; how low can it go?
A: As slow as a few RPMs
Q: If a drag conveyer chain breaks, how do you fix it?
A: From head to tail end, get a lance through the conveyer and pull the chain out
Q: Is the belt standard and do you provide?
A: Yes, 2-ply bare-backed belt. Viable- takes U shape and is supple and also low friction
Q: How much horse power?
A: Slightly more than troughing-roller conveyors, less than a slider belt
Q: Slide material?
A: No, just pipe standard
Q: If more than 22 degree angle, do you need an air jet belt?
A: Chevron type top. Some can handle steeper grade but if it gets too steep need more area.
Q: With fiber during winter and snow, will material slide back and plug up?
A: No. Belt and tube does sweat though and can freeze solid. Can put in idle mode or put in heater to evaluate temperature.
Q: Is there a wear indicator?
A: Yes, side of carriage assembly window by seal packing cartridge
Q: How many gallons before regeneration?
A: Each vessels: (3.3 million), 2 online, 2 on standby
Q: What kind of membrane?
A: Dow film tech
Q: California has water problems. At what rate is the water available there?
A: 40-50 gpm/condensed from exhaust
Q: Dirty water do you need to purify it?
A: Use somewhere that doesnt need clean water
Q: Caustic in water system, treat to PH?
A: Yes, caustic water injected before intake at 2 gph. Take from boiler blow down, add sodium bisulfate (turns into salt)
Q: Vessel 01 Direct contact with water purge?
A: Overflow condensed from stack goes out with overflow
Q: Reliability caustic on steel stack?
A: Used FRP, normally stainless steel. 1-2 yrs nozzle replaced from abrasion
Q: Surface condenser to use FRP?
A: Coil heat recovery cools stack gas to 150 deg.