Equipment for the desalination and dewatering of coco coir, capable of effectively reducing its salt

Core Processes for Coir Desalination and Dewatering: Spray Washing + Mechanical Pressing The desalination and dewatering of coir typically constitute an integrated, continuous process, rather than merely an isolated task performed by a single, standalone piece of equipment. The core operational logic adheres to the principle of "wash first, then press": Desalination (Salt Removal) Stage: This stage involves spraying the coir with fresh water to rinse it; this dissolves the salts present within the material, allowing them to be carried away by the water flow. To maximize washing efficiency and conserve water, multi-stage spraying or counter-current washing methods are typically employed. Dewatering (Pressing) Stage: Following the washing process—during which the coir becomes fully saturated with water—the material is subjected to intense mechanical pressure. This pressure squeezes out the moisture, reducing the water content to a level suitable for subsequent drying or immediate use. Key Metrics and Processes for Advanced Desalination and Dewatering Technologies To achieve "advanced" processing results, particular attention must be paid to the following key aspects: 1. Desalination Standards: For high-quality coir intended for use in soilless cultivation, the salt content (typically measured by its Electrical Conductivity, or EC value) must be reduced to a safe level. Academic research indicates that, following washing and desalination treatment, the ideal target for salt content should be below 0.5 mS/cm; this is regarded as a critical quality benchmark. 2. Dewatering Efficiency: After undergoing mechanical roller-pressing for dewatering, the coir's moisture content can typically be reduced from its original state to a range of 50%–60%. This significantly lowers energy consumption during the subsequent drying phase. Subsequently, the material is further dried to a moisture level of approximately 15%, at which point it can be compressed into blocks for convenient st