Job Description:

• 1) Tends ball mill and auxiliary equipment that grind bauxite and mix it with materials to form slurry: Computes amounts of bauxite, starch, and liquor in specified proportion, using weightometer.

• 2) Turns valves on ball mill to grind bauxite.

• 3) Turns valves on pumps to release liquor and starch from storage bins and to mix them with bauxite to form slurry.

• 4) Starts pumps to transfer slurry to digester feed tanks.

• 5) Opens and closes valves to pump sodium sulfide solution into slurry.

• 6) Lubricates valves with grease gun, and adjusts packing glands to prevent leaks.