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.