Dynamic Characteristics and Mathematical Models of Filled Level for Ball Mills with Double Inlets and Outlets

Article Preview

Abstract:

Ball mills with double inlets and outlets (BMDIO) are widely equipped in milling systems of thermal power plants because of BMDIOs’ vantage on being able to pulverize various raw coal. In this paper, dynamic characteristics of mill’s coal level were studied by pulverizing coal mechanism analysis. Furthermore, models for filled level of mill were obtained with mathematical Equations. The nonlinear, strong coupling and large lag features of BMDIO’s dynamic characteristics were demonstrated by the model for level of materiel constructed in this paper. And, the model would be become the available theory basis for the calculation of pulverized coal into furnace and design of combustion in fossil-fired thermal unit.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 1008-1009)

Pages:

988-994

Citation:

Online since:

August 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Damian Flynn(Editor) . Thermal Power Plant Simulation and Control[M]. The Institution of Electrical Engineers, London, United Kingdom 2003, 63-99.

Google Scholar

[2] CORTI, L., DEMARCO, A., RADICE, A., etc. . Control and modeling of coal mills [J]. Proceedings of the IFAC Symposium on Power Plants, Pittsburgh, 1986, 92-97.

Google Scholar

[3] FAN, G. Q. . Modeling and control of vertical spindle mills in power plant [D]. ME thesis, University of New South Wales, (1994).

Google Scholar

[4] FAN, G. Q., REES, N. W. . Modeling of vertical spindle mills in power plant [J]. Proceedings of the Electrical Engineering Congress, Sydney, 1994, 1, 235-240.

Google Scholar

[5] Dong-feng WANG, Xi-ning YU, Zhi-ping SONG. Dynamic Mathematical Model of Ball Mill Pulverizing System and Its Inverse Control Based on Distributed Neural Networks(In Chinese)[J]. Process of the CSEE, 2002, 22(1): 97-101.

Google Scholar

[6] Gang YUAN . Research for the Control System of the Ball Mill with Double Inlets and Outlets(In Chinese)[D]. Changsha: Changsha University of Science & Technology (Master Thesis) , (2009).

Google Scholar

[7] Ming LI . Level Measure and Optimum Control of BBD Coal Mill(In Chinese)[D]. Shenyang: Shenyang University of Technology (Master Thesis) , (2004).

Google Scholar