聚丙烯粉末制造车间工艺设计书.docVIP

沈阳工业大学辽阳校区 高分子材料应用技术0901 汪锡海 指导老师：李凤艳 摘 要 聚丙烯是五大通用热塑性树脂中最有发展前途的品种之一，也是制造丙纶纤维的原料。聚丙烯是一种结构规整的结晶性聚合物，是透明、相对密度低的通用树脂。因所用催化剂和聚合工艺不同，所得聚合物性能，用途也不同。，并易于通过共聚、共混、填充等措施进行改性。最突出的性质是多面性，它能适合于许多加工方法和用途。,市场的强大需求会推动着聚丙烯行业迅速发展。因此，对聚丙烯车间的设计显得重要。 通过进行本设计，对聚丙烯工艺形成初步认识。按照聚丙烯工艺操作手册，对设计的装置组成、生产方法、生产制度和工艺参数的选择确定合理的操作规程和指标。Auto CAD绘制物料平衡图和带控制点的工艺流程图。 经过最后核算，本次设计符合预期要求，并且各项参数均已达标。 关键词：聚丙烯；性能；离心机；工艺设计 Abstract Polypropylene is one of the five general thermoplastic resins that have the most prospering prospect, and it is also the raw material of manufacturing polypropylene fiber. Polypropylene resin is a kind of regularity and crystalline polymer in structure. Because the catalyst and synthesize the craft of uses differently, the performance and the purpose are also different.Polypropylene has high melting point, high strength, high heatproof, high abrasion resistance, low creepage and so on. And it’s easy to transform property through copolymerization, mixing and filling. Polypropylene most prominent property is versatility, it can suit many processing methods and the use. With the progressive development of our synthesize technolygycraft, polypropylene industry is being in during the rapid development at present, the supply and demand contradictory still will high light in the future, the prospects for development were extremely broad. In future, the heavy market demand likewise impulse the swift growth of polypropylene productive capacity. Therefore, the design of the PP is particularly important. Through this design, we had a rough understanding on PP process. From the composition of the designed plant, production method, production system and process parameters stated in PP process and operation manual, we determined reasonable operating procedures and indexes. This design is mainly about technological for 48.8kt/a polypropylene powder manufacture workshop, its main part is the design of centrifuge. In the process of design, we should complete the preparation of