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  1. acurry

    Sizing a material handling blower

    I have a trim system that pulls paper trim through ducting, into a fan, and blows it up to another location. The current system delivers 4900 cfm at 12" static pressure. The fan has a 30 HP motor on it. I want to look at the operation and size a suitable blower/motor to see if the existing is...
  2. acurry

    Accelerometer Frequency Response - Basics

    Bearing problems are the main issue, but I would want this system to catch whatever else that might be going on. I am just not that familiar with vibration monitoring. I understand the roller bearings are turning at a faster rpm then the dryer can. However the inner race would turn as the...
  3. acurry

    Accelerometer Frequency Response - Basics

    I am trying to select accelerometers for turning dryer cans in a Paper Mill. Given the cans diameter and our machine speed, the cans run between 55 and 110 rpm. I have some specs for accelerometers, but I am unsure about what I am reading. From two salesmen, I have specs stating: 1)...
  4. acurry

    Finding Torque on a Roll

    Thanks for the help, much appreciated!
  5. acurry

    Finding Torque on a Roll

    I have paper on a 1/4 wrap on my roll, with is 2000 lbs and 13 7/8" diameter. My paper moves at 3500 ft/min.
  6. acurry

    Finding Torque on a Roll

    I have a roll that is currently free wheeling to a stop. We are in process of sizing a belt to have this stop a bit quicker. The belt manufacturer wants to know max/min torque on the roll. How should I go about getting this?
  7. acurry

    Steam pressure drop and line sizing

    I have a 3" steam line (sized for 4800 #/hr) coming off the header, 120 psig, 350 degF, going to a 3" pressure reducing valve for an outlet pressure of 8 psig. The line after the valve is sized for 6" to maintain the same 4800 #/hr, given the pressure drop. My question is: If I have a few...
  8. acurry

    New at sizing steam lines

    I am on my first steam involved project. I am to take steam from my header and drop the temp and pressure. The header is at 117 psi, 353 deg F, 60,000 #/hr. My equipment needs 5 psi, 248 deg F, 4800 #/hr. The total feed pipe run will be around 50 feet. The header is superheated and the...

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