The granulator is primarily composed of feeding, mixing, granulating, transmission, and lubrication systems, and is widely used in the chemical and food industries. Granulators can be categorized into feed granulators and biomass energy granulators.
Primary Structure
The granulator is mainly composed of feeding, mixing, granulating, transmission, and lubrication systems. Its working process involves taking a blend powder with a moisture content not exceeding 15% from the hopper into the feeding screw, adjusting the speed of the variable-speed motor to achieve the appropriate material flow. The powder then enters the mixer, where it is stirred with steam for quality adjustment. If molasses or oil is to be added, it is also mixed into the stirrer with steam for quality adjustment. The oil addition is generally no more than 3%, as exceeding this can hinder shaping. After quality adjustment, the blend powder temperature can reach 64-85°C, and the humidity can reach 14-16%. Next, the powder passes through a slanting trough and is processed by an optional magnetic separator to remove iron impurities mixed in. It then enters the granulating chamber for granulation.
Feeder
The feeder is composed of a variable-speed motor, a reducer, a spiral tube, and a spiral shaft.
The variable speed motor is composed of a three-phase asynchronous AC motor, an eddy current clutch, and a tachogenerator. When paired with the JZT controller, it can alter its output speed through the JDIA electromagnetic variable speed motor controller.
Brake Gear
The feed reducer utilizes a cycloidal pinwheel reducer with a reduction ratio of 1.10, directly coupled with a speed-regulating motor to achieve deceleration, thereby controlling the effective speed of the feed screw conveyor between 12-120 RPM.
Feeding Screw Conveyer
The feeding screw is composed of a screw tube, screw shaft, and mounted bearing, etc. The screw serves as a feeding function, with adjustable speed, allowing for variable feed rate to achieve rated current and output. The screw shaft can be pulled out from the right end of the screw tube for cleaning and maintenance.
