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在尿素熔融或尿液进行喷浆团粒法生产复合肥的过程中 ,存在 :尿素在熔融槽熔解慢 ;尿液管道易堵 ;成球较小、过度成球或出现扁平状颗粒 ;物料干燥后筛分困难 ;喷浆用齿轮泵磨损严重等问题。分析产生这些问题的原因及解决措施 ,改造后 ,造粒成球率由 5 0 %提高到 85 %～ 90 % ;含氮量精度控制± 1.5 % ;产品水分 <1.5 % ;产量提高 30 % ;蒸汽、动力、燃料消耗均下降 10 %～ 15 % ,产品质量提高。
In the urea melt or urine spray granulation production of compound fertilizer in the process, there is: urea in the melting tank melt slowly; easy to plug the urine pipe; into a smaller ball, over into a ball or flat particles; material drying Sieving difficulties; gear pump with serious wear and tear and other issues. Analysis of the causes of these problems and solutions, after transformation, pelletizing the ball rate increased from 50% to 85% to 90%; nitrogen content accuracy control ± 1.5%; product moisture <1.5%; output increased by 30% Steam, power, fuel consumption decreased by 10% to 15%, improve product quality.