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Ammoniation granulation of NPK compound fertilizer production line
Compound fertilizer is suitable for all kinds of soil, wheat, corn, melon and fruit, peanut, vegetables, beans, flowers, fruit trees and other crops and economic crops. It is suitable for base fertilizer, seed fertilizer, topdressing, seed fertilizer and flushing application.
The compound fertilizer produced by ammoniation granulation NPK compound fertilizer production line adopts ammoniation and secondary dechlorination granulation production process. The principle is that potassium chloride and sulfuric acid are added into the reaction tank to heat and react under certain conditions. The HCl gas escaped can be absorbed by water to produce hydrochloric acid of certain concentration. The generated potassium bisulfate is mixed with dilute phosphoric acid to form mixed acid.
The mixed acid and synthetic ammonia are reacted in a tubular reactor in proportion to produce compound fertilizer slurry, which is directly sprayed into a drum granulator to produce sulfur based compound fertilizer with a certain proportion of nitrogen, phosphorus and potassium. It has the characteristics of uniform granulation, bright color, stable quality, sufficient nutrients, easy to dissolve and be absorbed by crops, especially as seed fertilizer.
