Dr. Feng Xugang Profile

Dr. Feng Xugang

at Anhui University of Technology

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Proceedings Article | 31 January 2013 Paper

Pressure intelligent control strategy of Waste heat recovery system of converter vapors

Xugang Feng, Zhiwei Wu, Jiayan Zhang, Hong Qian

Proceedings Volume 8759, 875933 (2013) https://doi.org/10.1117/12.2016814

KEYWORDS: Phase modulation, Picosecond phenomena, Control systems, Cooling systems, Oxygen, Fuzzy logic, Control systems design, Strategic intelligence, Air contamination, Device simulation

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The converter gas evaporative cooling system is mainly used for absorbing heat in the high temperature exhaust gas which produced by the oxygen blowing reaction. Vaporization cooling steam pressure control system of converter is a nonlinear, time-varying, lagging behind, close coupling of multivariable control object. This article based on the analysis of converter operation characteristics of evaporation cooling system, of vaporization in a production run of pipe pressure variation and disturbance factors.For the dynamic characteristics of the controlled objects,we have improved the conventional PID control scheme.In Oxygen blowing process, we make intelligent control by using fuzzy-PID cascade control method and adjusting the Lance,that it can realize the optimization of the boiler steam pressure control.By design simulation, results show that the design has a good control not only ensures drum steam pressure in the context of security, enabling efficient conversion of waste heat.And the converter of 1800 flue gas through pipes and cool and dust removal also can be cooled to about 800. Therefore the converter haze evaporative cooling system has achieved to the converter haze temperature decrease effect and enhanced to the coal gas returns-ratio.

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