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兰化公司化肥厂在11万吨/年尿素装置自控改造时,选用重庆工业自动化研究所研制的DJK-7500工业过程控制机(拆除了常规调节仪表),监控整个生产工艺,并进行了HN_3/CO_2优化控制。附设了一台小型微机IBMPC-286作为实施优化控制软件的扩充环境,经RS-232接口通道直接干预调节
The chemical fertilizer plant of Lanhua Company chose DJK-7500 industrial process control machine developed by Chongqing Institute of Industrial Automation (with routine adjustment instrument removed) to control the entire production process when the urea plant with a capacity of 110,000 tons / year was controlled by itself. The HN_3 / CO_2 optimization control. Attached to a small microcomputer IBMPC-286 as the implementation of optimization control software to expand the environment through the RS-232 interface channel direct intervention to adjust