In the chapter of equipment selection, selection of appropriate equipment for each process procedure would be determined, combined with Production Process and optimal operating.The revelant parameters for each equipment are also required,which lay the solid foundation for next energy balance,economic accounting and Workshop layout.

In the chapter of material balance,material balance could be calculated with the law of conservation of mass.First of all,such calculation criterion as production day,production time and attrition rate in every part should be determined.Secondly,the consumption of raw material,and the production of products could be figured out with the consideration of Process schematic drawings.In the end,the amount of Raw material consumption could be listed so that we can take up economic calculation.

In the chapter of energy balance.The flow chart of energy balance,together with necessary description of the energy transfer process was given at the beginning of this chapter.The amount of cooling water and chilled water was decided through the energy calculation of the extruder and mold,further,the specific amount of power consumption in the design was determined.Secondly,the amount of cooling water and chilled water was decided through the energy calculation of the extruder and mold,further,the specific amount of power consumption in the design was determined.In the second section of this chapter, according to the production process,Total power could be sumed from each equipment power,and the list of energy loss was given at the end of this chapter,which could support next economic accounting.

In the Non-process design, the staff arrangements and other related matters were listed.Meanwhile,some security and environmental protection problem,such as heating,ventilating ,and "three wastes" treatment were also taken into account.Combined with other factors that have influences on cost,the total cost of the design was estimated on the basis of the table of raw material consumption,energy consumption,and this result can judge whether the design is reasonable or not.

The plant layout design was the final content, in which the principles and requirements of plant layout were briefly introduced. And the specific arrangement of the workshop in the design was illustrated.The result of plant layout design was presented as a floor-plan in the end.

目录

1 绪论 1

1.1 文献综述 1

1.1.1 聚氯乙烯树脂的特点 1

1.1.2 聚氯乙烯的主要用途 2

1.1.3 塑料管材的分类 3

1.1.4 常用管材对比 4

1.1.5 聚氯乙烯管材的特点 7

1.2 设计的目的和意义 8

1.3 设计的产品规格 8

2 配方设计及成型方法的选择 9

2.1 聚氯乙烯管材配方设计 9

2.1.1 配方初选 9

2.1.2 聚氯乙烯树脂的选择 9

2.1.3 增塑剂的选择 10

2.1.4 热稳定剂的选择