年产6吨三聚氰胺工厂毕业设计样本.doc

年产6吨三聚氰胺工厂设计

摘要

三聚氰胺是一个用途十分广泛有机化工产品。三聚氰胺能够由尿素在高温下分解成异氰酸，异氰酸深入气相聚合成得到。三聚氰胺是一个关键氮杂环有机化工原料，是尿素深加工产品，关键用于生产三聚氰胺—甲醛树脂，广泛用于木材加工、塑料、涂料、造纸、纺织、皮革、电气、医药等行业，现在是关键尿素后加工产品。另外三聚氰胺还能够作阻燃剂、减水剂、甲醛清洁剂等。三聚氰胺生产方法有双氰胺法和尿素法。因为以尿素为原料生产路线各项技术经济指标远远好于双氰胺为原料工艺路线，双氰胺法已逐步被淘汰，尿素法是以后发展方向。对于把三聚氰胺作为尿素下游产品进行开发项目，它有着得天独厚条件。临近尿素生产装置，能向三聚氰胺装置可靠地提供熔融尿素原料，又能将三聚氰胺装置副产品甲胺液返回到尿素装置再生产尿素。

本设计是年产6万吨三聚氰胺工厂设计，关键进行了工艺计算、设备选型，并绘制了全厂平面部署图、工艺步骤图、设备装备图、生产车间立面图和平面图。

关键词：三聚氰胺，尿素，氨，二氧化碳，设备选型

TheFactoryofMelamineWhoseOutputis60,000TonsPerYear

Abstract

Melamineisanorganicchemicalproductofveryextensiveuse.Melamineisdeservedbythegas-phasepolymerizationofisocyanicacidwhichisthedecomposingproductsofcymene.MelamineisanimportantHeterocyclicorganicchemicalrawmaterials,ureaisthedeepprocessingofproducts,mainlyusedintheproductionofmelamine-formaldehyderesin,widelyusedinwoodprocessing,plastics,paint,paper,textiles,leather,Electrical,andmedicalindustries,itisimportanttoureaprocessingproducts.Inadditiontomelaminecanalsofireretardantandwaterreducer,formaldehydecleaningagent.Melamineproductionmethodshavedicyandiamidelawandthelawofurea.Astherawmaterialsforureaproductionline,thetechnicalandeconomicindicatorsdicyandiamidefarbetterthantherawmaterialsfortheprocessline,dicyandiamidemethodhasgraduallybeeneliminated,urealawisthefuturedirectionofdevelopment.Forthemelamineureaasthedevelopmentofdownstreamproducts,ithasuniqueconditions.Approachingureaproductionfacilities,abletoprovidereliabledevicesmelamineureameltingofrawmaterials,butalsowillbeaby-productofmelamineinstallationofmethylaminereturntotheureaplantproductionofurea.Thisindicationistodesignforachemicalfactory,whichproduce60,000tonsMelamineyearly.ItincludethemainequipmentcomputationandtheshapinginthetechnicalprocessofpolymerizingMelamine,entirefactoryfloor-pl