PREPARING THE MIXTURE FOR THE KILN. 409 



Plant No. 4- Limestone and shale. 



Limestone Shale 



2 Alton crushers 1 dry-pan to 8-mesh 



1 Bonnot drier 1 rotary drier 



10 sets rolls 2 tube mills 



9 sets Sturtevant emery mills 



4 intermittent tube mills 

 4 kilns 



Plant No. 5. Uses fairly hard limestone, with shale. 



Limestone . Shale 



1 Gates crusher, coarse rock sold; 1 disintegrator 



screenings used in cement plant 2 Bonnot rotary driers 



2 Bonnot rotary driers 



3 kominuters to 20-mesh 



4 tube mills to 92% through 100-mesh 

 8 kilns 



Plant No. 6. Limestone and shale. 



Limestone Shale 



1 Gates crusher 1 Gates crusher 



1 rotary drier 



3 ball mills 



4 tube mills 

 6 kilns 



Plant No. 7. Uses hard limestone and shale. 



Limestone Shale 



2 Austin crushers 1 Sturtevant crusher 



2 Bonnot driers 2 Bonnot driers 



2 Krupp ball mills 1 Bonnot ball mill 



5 tube mills 

 10 kilns 



Plant No. 8. Limestone and shale. 



Limestone Shale 



1 Gates crusher, No. 5 



1 rotary drier 



3 Williams mills 



3 tube mills 



6 kilns 



Plant No. 9. Limestone and shale. 



Limestone Shale 



2 crushers 

 2 rotary driers 

 4 ball mills 

 6 tube mills 

 8 kilns 



