you can download the Powder Cooler broucher at following site it gives pretty good info

http://www.flsmidth.com/FLSmidth/English/Contact/Brochures+and+info/Brochures/Cement+grinding+Gears+and+Cement+silos/default.htm

Dear NG,

Remember to integrate a cooler control into your cooler. Using the heated air of the cooler as secondary air will influence the burner flame a lot. So you should as well use a Burning Zone Temperature Measurement and Kiln Flame Shaping Tool.

Contact me for further information alexander.hanf@powitec.de.

Regards

 Alexander Hanf