文档介绍：年产5万吨高浓度复合肥
化工设计说明书
院系:化工与能源学院
专业:化学工程与工艺
班级:x 班
姓名:xxx
学号:2010xxxxxxx
指导老师:张xx、张xx
目录
一、总论················································3
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、燃料·································6
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5
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二、生产流程············································9
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三、工艺计算···········································12
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四、设备选型···········································16
五、原材料、动力消耗定额和消耗量
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六、费用估算····································· 21
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七、效益分析······································ 23
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八、结论与建议···································· 23
年产5万吨高浓度复合肥
化工设计说明书
一、总论
概述
氮、磷、钾三种养分中,至少有两种养分表明量的仅由化学方法制成的肥料,是复混肥料的一种。
复合肥具有养分含量高、副成分少且物理性状好等优点,对于平衡施肥,提高肥料利用率,促进作物的高产稳产有着十分重要的作用。但它也有一些缺点,比如它的养分比例总是固定的,而不同土壤、不同作物所需的营养元素种类、数量和比例是多样的。因此,使用前最好进行测土,了解田间土壤的质地和营养状况,另外也要注意和单元肥料配合施用,才能得到更好的效果。
目前,复合肥的发展具有三大趋势:第一是多品种专用化。不同作物有不同的专用肥,专用肥是根据作物生长发育规律和吸肥量研制生产的。农民在选用复合肥时,要根据不同作物选择相应的专用肥