Method for producing spherical calcium ammonium nitrate particles through high-tower granulation

The invention relates to the technical field of calcium ammonium nitrate, in particular to a method for producing spherical calcium ammonium nitrate particles through high-tower granulation. The invention discloses a method for producing spherical calcium ammonium nitrate particles by high-tower granulation, which comprises the following steps: burdening and mixing: conveying a calcium ammonium nitrate mixture containing trace magnesium into a primary mixing tank at the top of a granulation tower, and melting and mixing the calcium ammonium nitrate mixture with a calcium ammonium nitrate return material; after melting and mixing are finished, overflowing to enter a secondary mixing tank, and melting and mixing again to obtain molten feed liquid; and performing granulation and screening, enabling the molten material liquid to enter a granulator through overflow for granulation, and performing cooling and screening to obtain a calcium ammonium nitrate product. According to the method, a'melt method 'high tower