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| RESEARCH AND APPLICATION OF AUTOMATIC BLENDING SYSTEM BASED ON PLC |
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Received:April 13, 2011
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| DOI：10.3969/j.issn.1005-7854.2011.03.021 |
| KeyWord:PLC; blending; automatic control; accuracy |
| Author | Institution |
| TAI Guang-feng |
Beijing General Research Institute of Mining and Metallurgy, Beijing |
| PAN She-wei |
Beijing General Research Institute of Mining and Metallurgy, Beijing |
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| Abstract: |
| Blending process plays a very important role in industries such as food, chemical, and petroleum as well. The accuracy of online blending is difficult to control in industrial production process. The accuracy of blending is determined by the performance of control system. Control system with high accuracy has been developed by this paper, which is realized based on PLC. This paper describes in detail the design scheme of hardware and software. Furthermore, this paper also introduces the communication parameter setting between the PLC and touch screen, and system controlling process as well. After many industrial tests, this system has been proved of following advantages such as stable operation, high accuracy, strong electromagnetic interface resistance ability, and etc. |
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