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In the design, the kettle body, covered kettle, stirring device, transmission device of the polyurethane prepolymer reactor was designed. As amount of dehydration polyether account for 7.8% in process operations, the design has been focused on the type shaft, the length of the design and calculation of the required shaft power, so that motor power can be calculated; it is calculated that the distance from the mixing shaft to the end of reactor vessel is 0.035m;In the process of polyether glycol dehydration, vacuum devices and dehydration unit are used, which can guarantee that the removal percentage of water content is below 0.5%.
Combining the producing craft and the products, the balance of materials and energy have been calculated. Originally, the annual output of the polyurethane-modified epoxy resin year designing is 1000 tons. According to calculations, there are two classes in the daily in the frequency of continuous production, so each class of the production plan for 3075.66 kg.The entire production process is advanced in the same reactor .
According to an annual output of 1200 tons of the polyurethane-modified epoxy resin workshop, a workshop is designed. The workshop adopts rectangular and double layer. The size of workshop is 35m×17m×16m. During the design of workshop, the rectangular workshop is advantaged to design the whole workshop, and advantage to arrange equipments and save areas, and advantaged to adopt the light and ventilate well, and also advantage to arrange transport ,export and import.
This design also gives full consideration to the safety and environmental protection issues. In the production process, request that the personnel obey strictly the regulation to operate, and usually attend the related training to know about the relevant information.
According to the task issued by the design, the polyurethane-modified epoxy resin workshop design is successful accomplish. Throughout the design process, I have a comprehensive understanding of production processes of polyurethane prepolymer and processes of composition of polyurethane prepolymer and epoxy resin. And according to the basis of expertise, combining my knowledge of the internship experience and flexible application, there is a certain foundation for me to engage in work related to production management for the future.
As polyurethane-modified epoxy resin workshop design of knowledge is broad, and my knowledge and experience are limited, cordially requesting teachers make a comment to the mistakes and the inadequacies of the design.
目录
1 绪论 1
1.1 本设计的任务 1
1.2 产品简介 1
1.2.1 环氧树脂概述 1
1.2.2 发展和市场情况 1
1.3 产品性能及应用 3
1.3.1 环氧树脂的性能优缺 3
1.3.2 环氧树脂的应用领域 4
1.4 产品改性 5
1.4.1 改性环氧树脂的意义 5
1.4.2 改性环氧树脂的方法 5
1.4.3 环氧树脂增韧机理 6
1.5 聚氨酯增韧环氧树脂 7
1.5.1 聚氨酯增韧环氧树脂 7
1.5.2 聚氨酯改性环氧树脂的机理及优点 7
1.6 固化剂对产品的影响及质量标准 8
1.6.1 固化剂对产品性能影响 8
1.6.2 质量标准 9
1.7 课题研究方案 10
2 配方设计 10
2.1 原料选择及确定依据 10
2.1.1 聚氨酯（预聚体）的合成 11
2.1.2 环氧树脂的选用 16
2.2 配方设计的基本原理 17
2.3 工艺配方 18
2.4 配方依据 19
3 生产方法 21
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