Coir Pith Desalination and Dewatering Equipment: High-Efficiency Twin-Roller Belt Filter Press

The core processes of coconut coir desalination and dehydration: spray washing + mechanical pressing to reduce salinity. Coconut coir desalination and dehydration typically constitute an integrated, continuous process, rather than an isolated task performed by a single, independent device. Its core operating logic follows the principle of "wash first, then press": Desalination (washing) stage: In this stage, clean water is sprayed onto the coconut coir to dissolve the salts it contains, which are then carried away by the water flow. To maximize washing efficiency and conserve water, multi-stage spraying or counter-current washing methods are usually employed. Dehydration (pressing) stage: After washing and absorbing sufficient water, the coconut coir then undergoes intense mechanical pressing. This action squeezes out the water, reducing the moisture content to a level suitable for subsequent drying or direct use. Key Indicators and Processes of Advanced Desalination and Dehydration Technology To achieve "advanced" processing results, the following key aspects must be given special attention: 1. Desalination Standards: For high-quality coconut coir intended for hydroponics, its salt content (usually measured by electrical conductivity, or EC value) must be reduced to a safe level. Academic research indicates that after washing and desalination, the ideal salt content target should be below 0.5 mS/cm; this is considered a critical quality benchmark. 2. Dehydration Efficiency: After mechanical roller dehydration, the moisture content of coconut coir can typically be reduced from its original state to within the range of 50%–60%. This significantly reduces energy consumption in subsequent drying stages. The material is then further dried to a moisture content of approximately 15%, at which point it can be compressed into blocks for storage.