2026/03/05
Raw material pretreatment is the foundation of energy saving. Controlling material moisture content to 10%–20%, particle size to 20–40 mesh, and ensuring no agglomeration or hard impurities guarantees uniform and stable feeding, reducing roller wear and motor overload. Pairing with a high-efficiency mixing device improves material uniformity, reducing localized pelleting problems and increased return material.
Equipment and power optimization directly reduce energy consumption. Using a high-efficiency energy-saving motor with frequency converter control automatically adjusts speed and pressure according to the feed rate, avoiding over-engineering. Employing a hardened gear reducer improves transmission efficiency and reduces power loss. The pressure rollers are made of wear-resistant alloy material, with a rationally designed roller shape and gap to ensure stable pressure, uniform forming, extended service life, and reduced downtime maintenance.
Process control focuses on improving pelleting yield. Quantitative and uniform feeding is adopted to stabilize the main machine load and avoid frequent start-ups and shutdowns. Optimized matching of pressure, roller gap, and speed achieves a one-time forming rate of over 90%, significantly reducing the amount of recycled material. Recycled material is directly returned to participate in granulation, eliminating the need for secondary drying, removing high-energy-consuming steps, and achieving closed-loop, high-efficiency production.
The supporting systems are equally crucial. The use of closed conveying and negative pressure dust removal reduces dust waste, recovers fine powder for reuse, and improves raw material utilization. Strengthened daily equipment maintenance, including regular inspections of bearings, roller surfaces, and transmission components, reduces downtime due to failures and ensures continuous and stable operation.
Through these optimizations, the roller press granaultor production line can achieve energy savings of over 30%, more stable granulation quality, lower operating costs, and significantly improved overall efficiency.
