流化床干燥系统DCS控制系统设计
沸腾流化床干燥器由空气过滤器、沸腾床主机、旋风分离器、布袋除尘器、高压离心通风机、操作台组成。由于干燥物料的性质不同，配套除尘设备时，可按需要考虑，可同时选择旋风分离器、布袋除尘器，也可选择其中一种。一般来说，比重较大的冲剂及颗粒物料干燥只需选择旋风分离器。比重较轻的小颗粒状和粉状物料需配套布袋除尘器，并备有气力送料装置及皮带输机供选择。
毕业论文关键词: DCS控制；流化床干燥器；旋风分离器
DCS control system for fluidized bed drying system
Abstract：Using the system integration technology, design a set of distributed control system, and complete the process control for drying system. Distributed control system (DCS (distributed control system, DCS) based on microprocessor based distributed control function, concentrated operation, taking into account the points and self-government and comprehensive coordination of the design principles of a new generation of instrument control system is used. It is a by the process control level and process control level of the communication network as a link to the multi-level computer systems, computer (computer), communication (Communication), display (CRT) and control (control) 4C technology, the basic idea is decentralized control, centralized operation, classification management, flexible configuration, convenient configuration.
The fluidized bed dryer is composed of air filter, boiling bed host, cyclone separator, bag filter, high pressure centrifugal fan and operation platform. Because of the different nature of dry material, when the dust removal equipment is necessary, the cyclone separator and bag filter can be chosen, and one of them can be selected.. In general, the proportion of the larger granules and particulate material dry just choose cyclone separator. The lighter weight and the powder material need to be matched with the bag filter, and have the pneumatic feeding device and the belt conveyer for choosing.
KeyWords：DCS control；fluidized bed dryer；Cyclone separator
目录
1 绪论 5
2 DCS系统的介绍 5
2.1集散控系统的体系结构 5
2.2集散控制系统的硬件结构 6
3 DCS系统概述 7
3.1标准规范 7
3.2系统特点 8
4 DCS控制规模 8
4.1输入/输出信号类型 8
4.2输人/输出规模 9
5系统功能要求 9
5.1控制功能 9
5.1.1连续控制 9
5.1.2离散控制功能 10
5.2画面功能 10
5.3报表功能 11
5.4历史数据存储功能 11
6系统设计 11
6.1设计原则 11
6.2操作站 12
6.3控制和数据处理系统 13
6.4通信系统 13
7技术要求 14
7.1 冗余要求 14
7.1.1操作站 14
7.1.2控制和数据处理系统 14
7.1.3通信系统 14