The common granulation processes of compound fertilizers are: drum granulation, disc granulation, spray granulation, high tower granulation and so on.
The high-tower melt rotating granulation method produces high-concentration nitro compound fertilizer. This technology sprays the potassium nitrourea phosphate melt from the top of the granulation tower, and agglomerates into granules while cooling down in the tower. This is also called melt granulation, and high tower melting granulation is used in ammonium nitrate production enterprises.
The method of producing compound fertilizer has the following advantages: First, it can directly use concentrated ammonium nitrate solution, eliminating the need for spray granulation process of concentrated ammonium nitrate solution, and the crushing operation of solid ammonium nitrate to make compound fertilizer, which simplifies the production process. Ensure production safety. Second, the melt rotating granulation process makes full use of the heat energy of the concentrated ammonium nitrate solution, and the material has a very low moisture content, no drying process is required, and energy consumption is greatly saved. Third, it is possible to produce high-nitrogen, high-concentration compound fertilizer, the surface of the product particles is smooth and round, the percentage of pass rate is high, it is not easy to agglomerate, and it is easy to dissolve. This ensures that the product has a strong quality and cost from the production technology. Competitive advantage. Drum granulation is also called drum granulation. The drum granulator is the most widely used type of compound fertilizer production equipment. The formula limit is relatively small. It is also possible to use partial shotcrete and partial ammoniation. The most types of equipment, 2-3 million can be used as a production line, the daily output can reach more than 280-400 tons, and the good formula can reach more than 500 tons. The drum granulation production process is favored by many compound fertilizer manufacturers and is adopted by more and more compound fertilizer manufacturers due to its advantages such as relatively small formula restriction, high output, low investment, and short construction period.
