In a chapter in the selection of equipment, combined with the design of the production process as well as the optimum operating point, select the appropriate equipment for each process and gives the relevant parameters of each device, such as the type, power and so on. This parameter can be energy balance, accounting and economic aspects of plant layout provide a strong basis.

In the chapter on the material balance for conservation of mass, based on mass balance calculations. First, determine the basis of calculation of the mass balance, including the number of days of production, production time as well as various aspects of the loss rate. Secondly, the process can be calculated given a diagram of raw materials production and product consumption, the consumption of the various stages of the production process and the composition and the like. Finally, the consumption of raw materials comprehensive table, this may be economic accounting. By material balance, determine the working hours, the corresponding number of units of major equipment. At the same time, set out the various process yield and the amount of losses and waste, the amount of raw material required for the design provides a reference.

In the energy balance in the chapter. Firstly, the energy balance of the flow chart, and make the necessary transfer process outlined in this energy. Secondly, with respect to each extrusion die head system and part energy calculation, in order to obtain the cooling water and chilled water usage. In the second chapter, according to the order of the production process, the equipment used in the production process one by one power calculation, and gives the total power loss. At the end of this chapter gives a comprehensive list of energy loss. The table can provide a basis for economic accounting. In terms of energy content, through the extrusion molding machine and a mold portion energy balance calculation to obtain the amount of cooling water and chilled water, and further determine the specific amount. At the same time draw the design of power consumption.

In the non-process plant design chapter, the number of people who shop and post a brief arrangement. At the same time, also consider the water supply, water supply line and waste treatment plant problems.

In the table in raw material consumption, energy consumption and overall equipment table table based on the premise, taking into account other factors, the cost of this design were estimated results can be estimated as the present rational design of evaluation criteria.

Finally, plant layout design content, simply describes the requirements and principles of plant layout. Combined equipment selection and production process of the workshop layout, the design of a specific workshop choreography briefly described. As a result, in the form of plant layout plan presented.

Keywords： sheet；PVC；design of plant

目 录

1  绪论 1

1.1  文献综述 1

1.1.1  PVC树脂的特点 1

1.1.2  PVC的主要用途 1

1.1.3 塑料片材的分类 3

1.1.4 常用片材对比 3

1.1.5 PVC片材的特点 6

1.2  设计的目的和意义 7

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  PVC片材配方设计 9

2.1.1  配方初选 9

2.1.2  PVC树脂的选择