凡口铅锌矿选矿厂综合自动化设计与实践

凡口铅锌矿新建一座5000 t/d的单系列选矿厂代替3个平行生产系列的磨矿浮选厂,以提升自动化智能水平和矿山经济效益.为此,选矿厂设备OEM PLC采用了Profibus-DP通讯接口,工业自动化系统(DCS)选用西门子PCS7过程控制系统,选矿专家系统引进美卓矿机OCS眗自适应控制专家系统软件包,选矿厂信息化系统采用...

Design and practice of automation of Fankou lead-zinc concentrator

Abstract:Fankoulead zinc mine is a famous underground lead-zinc mining base in China, witha mining history of more than 50 years. In order to improve the standard of intelligent automatical control and the economic benefits of the mine, a new 5 000 t/d concentrator with one single series was build to replace the concentrator withgrinding and flotation system, which was divided into threeparallel production series. Profibus-DP communication interface was used in OEM PLC facility. SIEMENS PCS7 process control system was used in industrial automation (DCS) andMetsoOCS?adaptive control expert system software package was also added into the mineral processing expert system. The information-based system of the concentrator adopted independent research and development, the industrial video monitoring and LCD display system used independent design and assembly, while the measurement and detection employed advanced online detection instruments and meters. Automatic production and management in mineral processing plant were achieved after the application of the integrated design of these systems, instruments and meters, meanwhile, the lead concentrate, the zinc concentrate and the concentrate contained high grade of sulphur areproduced ,the lead-zinc mixed concentrate is cancelled, the added value of products has increased, as well as production personnels are reduced258persons. The annual operating incomes and net profits of the concentrator are upby RMB 79.70 million yuan and RMB 53.85 million yuan, respectively. The after-tax incremental investment financial internal rate of return is 16.40%, which has achieved good economic benefits.