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分析AZF复合肥工艺造粒的影响因素,讨论了当造粒机出料口粒径偏大或偏小时,系统“液相-固相”质量比的调节方法。通过调节管式反应器雾化效果、出口料浆的n(N)/n(P)、二次氨化造粒氨轴的通氨量及蒸汽通入量,以及造粒机转速等,保持了造粒机出口物料粒径的稳定。
The influencing factors of granulation in AZF compound fertilizer process were analyzed. The adjustment method of mass ratio of system to “liquid phase to solid phase” was discussed when the particle size of granulator outlet was too large or too small. By adjusting the atomization effect of the tubular reactor, the n (N) / n (P) of the outlet slurry, the amount of ammonia in the second ammoniated granulated ammonia shaft, the amount of steam inflow, the rotating speed of the granulator and the like Granulator export material particle size stability.