Introduction to Horizontal Fertilizer Mixers (Ribbon Mixers)

The horizontal fertilizer mixer (ribbon mixer) is a core mixing equipment in compound fertilizer and bio-organic fertilizer produciton lines, specifically designed for high-uniformity mixing of powdery and granular raw materials. 1. Structural Principle and Performance Advantages • Structural Composition: Primarily composed of a U-shaped horizontal cylinder, a mixing shaft, inner and outer double ribbons, and a transmission system. • Working Principle: The motor drives the main shaft, utilizing the opposite spiral directions of the inner and outer ribbons to simultaneously propel the material axially and convect radially within the cylinder, forming a three-dimensional composite motion for rapid, dead-angle-free mixing. • Performance Characteristics: ◦ High Mixing Uniformity: Typically reaches ≥95%, effectively solving the distribution problems of large specific gravity differences and trace additives. ◦ Efficiency and Durability: Compared to vertical mixers, single-batch processing time is reduced by approximately 50%, and the sealed cylinder minimizes dust leakage and facilitates cleaning. 2. Selection, Application, and Operational Considerations • Selection Parameters: Focus on effective volume (0.1–10 m³ is common), filling rate (typically 40%–60%), spindle speed, and motor power. • Application Scenarios: Primarily used for the raw material mixing process of compound fertilizers (BB fertilizers), organic fertilizers, and bio-organic fertilizers. • Operating Procedures: ◦ Overloading is strictly prohibited: Materials must be added according to the rated volume. Overfilling will cause a significant increase in mixing resistance and motor overload. ◦ Feeding Sequence: It is recommended to follow the "large to small" principle (add bulk raw materials first, then trace components) to improve uniformity. ◦ Maintenance Points: Regularly check bearing seals (to prevent dust intrusion) and blade wear. Empty the machine of all materials before stopping.

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