Industrial salt drying

Industrial salt drying is a fundamental process in the production and refinement of sodium chloride (NaCl) for commercial and industrial applications. Common Drying Methods： Rotary Dryers.

Introduction to Industrial Salt Drying

Industrial salt drying is a fundamental process in the production and refinement of sodium chloride (NaCl) for commercial and industrial applications. Raw salt, whether harvested from seawater evaporation, rock salt mining, or brine solutions, typically contains significant moisture (5–15%) that must be removed to enhance its purity, flowability, and stability. Drying ensures the salt meets stringent quality standards for use in sectors such as chemical manufacturing, water treatment, de-icing, and food processing.

Key Objectives of Drying
Moisture Reduction: Eliminate residual water to prevent caking, microbial growth, and corrosion during storage or transport.
Improved Handling: Produce free-flowing granules or crystals for efficient packaging, dosing, and machinery use.
Enhanced Purity: Remove impurities (e.g., clay, organic matter) often trapped in moisture, ensuring compliance with industrial-grade specifications.
Thermal Stability: Prepare salt for high-temperature processes, such as chlor-alkali production, where moisture could disrupt reactions.

Common Drying Methods

Rotary Dryers:
Large-scale systems where salt is tumbled in a heated rotating drum, using hot air (150–300°C) to evaporate moisture. Ideal for high-volume production.