Pellet mills: core technologies for pellet preparation in multiple industries
1.food, chemicals, and feed, pellet mills, as key equipment, significantly improve production efficiency and product quality by converting powdered or granular raw materials into uniform particles.
2.This article will delve into the working principles, application fields, technological evolution, and future trends of pellet mills, providing a comprehensive knowledge reference for industry practitioners.
3.Working principle: precision craftsmanship through physical pressing.
Granulators achieve the transformation of powder into granules through purely physical pressing technology, with the core being the use of pressure and friction to compress and shape the raw materials. Taking the dry granulator as an example, its workflow is divided into three key stages：
3.1 Feeding and Pre-pressing: Powdered raw materials are continuously and steadily conveyed to the roller gap through a screw feeder. The feeding speed can be accurately controlled to ensure uniform material entry.
3.2 Roller forming: Two high-strength rollers rotate in opposite directions under hydraulic or motor drive, compressing the material into dense sheets. The pressure can reach several tons to multiple tons, causing the particles to agglomerate through disc holes or physical extrusion.
3.3 Particle length: The pressed particles are cut to the desired length by rotary blades.
4.Core Advantages: Balancing Efficiency, Environmental Friendliness, and Quality
Solvent-free/Adhesive-free: Eliminates the need for expensive drying processes and removes the risk of bacterial residue, suitable for the wood chip and feed industries. Continuous Production: Integrated from feeding, compression to crushing and screening, production efficiency is increased by 40% compared to batch processing, and energy consumption is reduced by 25%. It has been widely applied to continuous production lines in feed companies. Pellet Quality Optimization: Through motor control, the pressure fluctuation range is reduced to ±1%, significantly improving pellet density uniformity and ensuring consistent pellet size. ...
