PLC聚氯乙烯的生产自控设计+梯形图
毕业论文关键词： 聚氯乙烯、力控、PLC、罗克韦尔、悬浮法
The design of automatic control of PVC
Abstract: Polyvinyl chloride is called PVC for short which is one of the five general plastics.The demand of PVC is only second to polyethylene, ranked second. Production of polyvinyl chloride (PVC) has the following several kinds of methods: suspension method, solution method, ontology method and emulsion method. All of them have its unique advantages and disadvantages, and the suspension method is commonly used now. The graduation design usesThe Force Control 6.0 software. It can not only display the technological process of polyvinyl chloride (PVC) with the device, but alsocan make the production process be automatically controlled through the program set in the software. There are several functions in the force control software, such as the function which can reflect the history curve, alarm, manual control, automatic control and time display functions. Then I usetheRockwell PLC to linkthe Fore Control software with PLC controller. After doing so, the whole production process of PVC can be controlled.
Keywords: PVC、Force Control、PLC、Rockwell、Suspension Method
目录
摘要 ii
Abstract iii
目录 iv
1 绪论 1
1.1 课题的目的和意义 1
1.2 聚氯乙烯的发展历史 1
1.3 全球聚氯乙烯的生产及发展 1
1.4 国内聚氯乙烯生产现状 2
1.5 聚氯乙烯的分类 2
1.6 聚氯乙烯的生产方法 3
1.7 聚氯乙烯制品的应用 3
1.7.1 聚氯乙烯管材 3
1.7.2 聚氯乙烯膜 3
1.7.3 PVC硬材和板材 3
1.7.4 PVC一般软质品 4
1.7.5 聚氯乙烯包装材料 4
1.7.6 聚氯乙烯护墙板和地板 4
1.7.7 聚氯乙烯日用消费品 4
2 聚氯乙烯的制备工艺 5
2.1 聚氯乙烯的制备工艺 5
2.2 聚氯乙烯的聚合方法 5
2.2.1 乳液聚合生产工艺 6
2.2.2 本体法聚合生产工艺 6
3 聚氯乙烯生产自控设计的工艺流程介绍 7
3.1 氯乙烯悬浮聚合工艺流程 7
3.2 浆料汽提工艺流程 8
3.3 浆料离心、干燥工艺流程 8
3.4 悬浮聚合的工艺特点 8
3.5 配方的选择 9
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