The pellet mill primarily consists of feeding, mixing, pelletizing, transmission, and lubrication systems. The operating process involves feeding a powdered material with a moisture content of no more than 15% from a hopper into a feeding auger. The material flow rate is adjusted by adjusting the speed of the stepless speed-controlled motor to achieve the desired flow rate. The material then enters the agitator, where it is agitated and mixed with steam for conditioning. If molasses or oil is required, it is also added from the mixing drum along with the steam for conditioning. The oil addition level is generally no more than 3%, otherwise it will be difficult to form. After conditioning, the powdered material reaches a temperature of 64-85°C and a humidity of 14-16%. The material then passes through a chute and an optional iron-absorbing device to remove iron impurities from the powder. The material then enters the pressing chamber for pelletizing.
Feeder
The feeder consists of a speed-controlled motor, a reducer, an auger barrel, and an auger shaft.
The speed-controlled motor consists of a three-phase asynchronous AC motor, an eddy current clutch, and a tachogenerator. It is used in conjunction with a JZT controller, and its output speed can be varied using a JDIA electromagnetic speed-controlled motor controller. Reducer
The feed reducer uses a cycloidal pinwheel reducer with a reduction ratio of 1.10. It is directly connected to the speed-regulating motor to reduce speed, keeping the effective speed of the feed auger between 12 and 120 rpm.
Feeding Auger
The feed auger consists of an auger barrel, an auger shaft, and a bearing block. The auger feeds the material, and its speed is adjustable, meaning the feed rate can be varied to achieve the rated current and output. The auger shaft can be removed from the right end of the auger barrel for easy cleaning and maintenance.
