Why Should the Granular Organic Fertilizer Production Line be Equipped with a Dryer

Why should the granular organic fertilizer production line be equipped with a dryer? Let's take a look at the main process of granular organic fertilizer production line: fermentation, crushing, sieving, mixing, wetting and granulating, drying.

Organic fertilizer powder into granules, need to add moisture. After granulation process, the moisture content of the granules is 50%-55%, if not dried, the granules will be caked due to moisture.

Therefore, the organic fertilizer drying (drying) principle is to granulate the moisture content of 50% to 55% of the wet organic fertilizer granules through drying equipment to dry dehydration to a moisture content of ≤ 30% to meet the organic fertilizer standards.

Such as short-term sales of products as long as the moisture content of ≤ 30% can meet the standard requirements.

Such as longer storage products or further processing of organic - inorganic compound fertilizer as raw materials for organic fertilizer granules must be ≤ 13% moisture content, otherwise the particles in the bag during the inventory will cause caking, or for processing organic - inorganic compound fertilizer material too high moisture will make inorganic raw materials dissolved and cause powder particles or particles softened.

The drying of organic fertilizer should adopt low temperature and large air volume conditions, the temperature is too high will make the organic matter carbonization and nitrogen evaporation loss. Too small air volume will cause the water steam in the dryer can not be discharged quickly. In the back section of the dryer, condensation will be formed easily to make the particles dried in the front section moist twice.