Overnight condensation, air entrainment in the powder voids etc; anywhere you have air in the tropics then you have moisture; even in the deserts. If you apply a hot gas purge it will help by disturbance, releasing air, gently does it, & preventing the air descending to dew point temperature levels. You should have plenty of waste hot gas flowing about the plant. ■

Dear Sir,

We have encountered several problems such as your application in various sectors. We have solved their problems and give exact solutions without modifying the geometry of the silos.

We are manufacturing the air cannon systems and delivered over 7000 units to different sectors, such as cement, gypsum, coal, copper and several hard to handle material applications.

It eliminates these clogging, sticking and rat holing problems occuring inside the silos, bins, hoppers. It does not blow continuous air instead introduces an air shock for a very short instant and sweeps all the material in between walls and material surface. It prevents compaction due to vibrating effect.

For detailed information please look to our web site www.yunel.com. or contact with us.

Thanks for your inquiry,

Best Regards,

Ufuk YUNEL

(M.Sc. Mining Eng; M.B.A)

Sales Coordinator

YUNEL LTD., STI

Address: Esat Cad. No 42/12 Kucukesat 06660 Ankara - Turkey

Tel: +90 312 4193285

fax: +90 312 4193289

e-mail: sales@yunel.com ■

you have no mentioned the silo feeding cement temp at top of silopl give the chemical analysis for both clinker, cement and cement particle size analysis. and also mention the average aymospheric temp (temp in summer& winter) ■

Dear Mr Sudhindra,

Please also read the thread

Concrete vs Carbonsteel Silo Wall

posted by Mr Mall of 15 may 2006

success

teus ■

There is a simple yet extremely effective solution to prevent the cement power from forming into lumps - Primasonics Acoustic Cleaners. However, first you must clean out your silo. The safe way to do this is to either hire an experienced silo cleaning company or to purchase our safe, remote silo cleaning system - The Gyro Whip. Please take a look at the following link for inflomation on this effective, remote silo cleaning system which eliminated the need for man entry.-

http://www.primasonics.com/silocleaning.htm

Then, once clean, install the correct model of Acoustic Cleaner on top. Sound waves will prevent the cement particles from bonding and ensure mass flow. Again, please take a look at the following link at -

http://www.primasonics.com/acousticcleanersrange.htm

On our web site you will also find a silo questionnaire form which you can either complete on-line or download. The link for this form is -

http://www.primasonics.com/siloform.htm

Alternatively you can contact me on - sound@primasonics.com

Donald F Cameron

Primasonics International Limited ■

What is the temperature of cement when enter the silos? If the temperature of cement is over 115 centigrade then there is a big chance for cement to become lumps. It is natural process, in order to keep it cool, the cement will absorb moisture from the air (atmosphere).

Is there no leaks in your silo(s)?

Does your ventilation system work well?

rgds,

Leo ■