NTE (NOL-TEC Europe) DRI plants:

• Lime Coating System

In  DRI  plants,  they  add  lime to iron ore pellets before charging them into  the  kiln  to  prevent  adhesion  of  pellets  and  cluster   formation in  kiln. Normally  for  each  ton  of  pellet,  they  add  2- 2.5  Kg. of  lime depending on chemical composition of pellet. This system is comprised of  a  LIW  feeder  in which dose of lime injection is controlled based on weight  of  the  discharge hopper in a feedback controlling mechanism. The  feedback  of  the  system  will control the variable speed drive of a screw feeder.