(5)The machine is featured by an advanced feeder with VFD, an overload protection
device, external discharge, and speed monitoring device for motor load.
(6)The configuration of enhanced conditioner with steam additionfunction,can be
double-pass or triple-pass, or jacket-type according to customers' needs.
2.3Main structureand working principle
The pellet mill consists of a feeder, conditioner(s) and a principal machine(mainly
including main motors, drive countershaft assembly, rotor assembly, ring die, press rollers,
cutter assembly, die lifting device, lubrication system, and hydraulic system (optional for
SZLH550x170),etc).
The working procedure is shown as follows:
Mixed mash of a moisture content below 18% is from mash bin to feeding screw before
entering the conditioner at a proper flow rate by adjusting the frequency inverter to control
motor rotating speed.The material will be sufficiently mixed with steam by the mixing effect
of stirring paddles in the conditioner.Molassess or oil/fat can be added into the conditioner
through molassess inlet if necessary.The temperature of the conditioned compound mash
is normally controlled within 65~95
℃
and the moisture is 14~18% according to different
formulations. Finally the mash drops into the pelletizing chamber and is compressed into
pellets by the press rollers and the ring die