I have been looking for a small bagging machine to bag our duct collect powder. In conversation with an individual I was told that bagging requiremnets were about to change. That the old plastic lined bags were going to be replaced by hermetically seal bags...are you aware of anything like that in the works?

I'm not aware of this development, but I'm sure it depends where in the world you are working. In Europe the big coming issue is hexavalent chrome. This has to be guaranteed to be less that 2 ppm and to ensure that ferrous sulphate is added to the cement to reduce any chrome. Unfortunately the effectiveness deteriorates over time and therefore shelf-life issues raise their head. This could very well be the reason why there is a move towards hermetically sealed bags.

We have ESP at the kiln system. It is also used for raw mill system. System is sent ESP's feedback to kiln feeding silo. There are two homogeneous silos and two stockage silos. Material is sent from ESP to homogeneous silos. So, my question is that, I am thinking to feed the ESP's feedback directly to preheater system but this line will be entered to system after weighfeeder. We have got line to feed this material before weighfeeder but it causes to reduce of fresh feeding. In this way I want to increase clinker production with same feeding amount. What do you think?

Your idea is a very good one. There are plants that do exactly what you propose. This has the advantage that the chemistry of the kiln feed is more stable because it is not destabilised by slugs of ESP dust being added to the homegenisation silo when the raw mill is not running. I am not sure that you will get more output but the kiln operation and clinker quality should be more stable.