6
Operation
Topics Covered in this Chapter
Loading the Mixer
1. The amount of material in the mixer is very important. The single most important factor in mixing
efficiency is not overloading the mixer. The level of material in the mixing chamber should not
exceed the rated capacity of the mixer. A rule of thumb is for the product to be below the top of the
agitator.
2. If possible, fill the mixer with the agitator in operation. Running the machine during loading will
increase the mixing efficiency and decrease the wear on drive components. If operation requires
starting the mixer under full load, make sure that the drive assembly is adequate to handle the
increased start up load.
Loading Sequence
1. The sequence of ingredient addition into the machine is important. Industry experience dictates that
the best results happen when major ingredients are added first, and after a short period of mixing,
the minor ingredient are then added.
2. Always add liquids after the dry ingredients have been added to the mixer.
IMPORTANT:
Do not add liquids to an empty mixer.
NOTE:
If liquid addition is a major part of the mixing process, periodic inspection and cleaning will
be necessary to maintain the sanitation of the mixer.
PNEG-2309
Horizontal Fertilizer Mixer
47
