Salt (Nacl) drying technology


Recommended Dryer Model: GLP Series Continuous Fluidized Bed Dryer (crystalline salt recommend vibrating fluid bed dryer)


1.  Material Overview:

       Sodium chloride is an ionic compound, chemical formula NaCl, colorless cubic crystals or fine crystalline powder, salty taste. The appearance is white crystalline, its source is mainly seawater, is the main component of table salt. Easily soluble in water, glycerin, slightly soluble in ethanol (alcohol), liquid ammonia; insoluble in concentrated hydrochloric acid. Impure sodium chloride is deliquescent in air. It is also used in ore smelting (electrolysis of molten sodium chloride crystals to produce active sodium metal), in medical treatment to configure physiological saline water, and in life to flavor products.

2. Technology Overview:

Continuous fluidized bed dryer is also called horizontal fluid bed dryer. A certain amount of air enters the dryer after being filtered, dehumidified (optional), and heated, and the inlet air temperature can be accurately controlled. The wet material is evenly added to the first chamber of the fluidized bed (with a harrow device) through the feeder, and is fully contacted with the hot air. The semi-dry product after the first chamber is basically in a loose state, ensuring the fluidization quality of the entire drying process, and finally meeting the drying requirements of the product. The entrained fine powder waste gas that has been in contact with the material, by virtue of the volume expansion principle of the equipment, achieves the ideal settling speed of the fine powder in the drying chamber, thereby minimizing the fine powder content of the exhaust air. Exhaust gas finish the dust elimination through cyclone separator and bag filter, then being washed by wet scrubber and discharged into air.

3. Technology Characteristic:

(1)  The residence time of materials in the fluidized bed is adjustable, this fbd dryer can produce products with lower water content.

(2)  High heat transfer intensity and high thermal efficiency. The rake device can break up the materials which are easy to agglomerate.

(3)  The feeding amount can be adjusted according to the temperature change in the fluidized bed for continuous or batch production.

(4)  The materials in the fluid bed are evenly dried to avoid part overheating of raw materials.

(5)  Adopt special air distribution plate, which not only pushes the material forward, but also does not loss the material.

(6)  The system adopts multi-level dust removal, which improves the product availability and reduces the material loss.

(7)  The system uses a fully enclosed structure, and the drying and cooling processes can be completed in one device at the same time.

(8)  Continuous operation, large processing capacity, suitable for large production.


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