Re: Convey Dried Ash From Dryer
Dear Calvin,
I am afraid (not sure) that 3% water content is not dry enough for pneumatic conveying.
A particle size of 1-5 mm (1000 – 5000 micron) will result in a suspension velocity of approx 12 – 14 m/sec, requiring an air velocity of approx 35 to 40 m/sec.
The fly ash particle size is comparable with fine gravel
The pneumatic conveying installation will be definitely dilute phase, suffer from a lot of wear and make an awful lot of noise.
Have a nice day
Teus ■
Teus
Re: Convey Dried Ash From Dryer
Calvin,
You may also consider a by-pass type of dense phase conveying system for your application. The choice between dilute phase or this type of dense phase will depend upon the total installed and operating costs.
Regards,
Amrit Agarwal
Consulting Engineer
Pneumatic Conveying Consulting
Charleston, WV, USA
Email: polypcc@aol.com ■
Re: Convey Dried Ash From Dryer
To Mr. Tuinenburg
Dilute phase conveying use such high velocity which is a problem.
Yes, the dried ash is fine gravel.
To Mr. Agarwal
How can use dense phase pneumatic conveying? Would explain further?
The way for conveying the uncrushed dried ash to storage is a difficulty for me.
Regards,
Calvin ■
Convey Dried Ash from Dryer
Hello
I have wet ash and try in drum thermal dryer to 3% moisture. Based on sludge experience, the dried ash would be 1-5mm.
I would like to convey the dried ash to the silo (60m high). Could I ask your help to justify which conveying system is better for such size ash?
Dense phase pneumatic conveying seems to be not good solution, right?
Thanks for your time
Calvin ■