Flow Sensor for Blown Limestone


Thread Starter

Bob Munch

Greetings List:

I am looking for suggestions on how to measure the amount of powdered Limestone being pneumatically conveyed through an 8 " pipe. The flow rate varies considerably and we would like to be able to monitor it. The product has the consistency of Talc, very powdery. Ultrasonic ?
Magnetic ? Other ? suggestions needed.

Bob Munch
I.Q. Controls Corp

Scott Jensen

Try measuring the density of the pipes contents and averaging it out over a set rate. Maybe a company like "Banner" sensors might have something for this.

Bruce Durdle

A LOOOONG time ago, I read of a system to monitor PF coal in air to boilers ussiong ultrasonics. It worked on a combination of Doppler (for air speed) and reflection/absorption (for coal dust loading). Wasn't terribly interested in coal firing, but it stuck in my mind.

But you may get some ideas from the coal-fired boiler industry anyway.

Take a look at the Bindicator Flo-Commander http://www.bindicator.com. It might be an answer...

Walt Boyes

Walt Boyes -- Director of New Business Development
Branom Instrument Co.-- P. O. Box 80307-- 5500 4th Ave. So.
Seattle, WA 98108-0307
Phone: 1-206-762-6050 ext. 310 -- Fax: 1-206-767-5669
http://www.branom.com -- http://www.branomstore.com
mailto:[email protected]

Tanweer Ahmed

Its difficult for a flow sensor to work for the purpose and conditions you mentioned. I will suggest better you install a load cell under your 8" dia pipe with flex on both ends.

Tanweer Ahmed
Phone: +9221-636 5519
Fax: +9221-568 2972
E-mail: [email protected]