Influence of Major Operating Parameters of HP Mill on Coal Fineness and Specific Power Consumption

doi:10.11930/j.issn.10.11930.2015.11.16

Abstract

Abstract: In this paper, the separation strength parameter“a” is proposed based on the dynamic classifier principle. A static model describing the influence of mill capacity (B), primary air rate (Q) and rotational speed of dynamic classifier (n) on coal fineness (R90) and specific power consumption (Em) is also established. Based on the model, the influence and sensitivity of the operation parameters on coal fineness and specific power consumption are analyzed, from which following conclusions are drawn: α/B is exponential to coal fineness (R90) and strongly linear to specific power consumption (Em); Em demonstrates linearity to ln (R90). The influences of mill capacity (B), primary air flow and rotational speed of dynamic classifier on R90 are independent of each other but not independent on Em; when n and Q change, the changes of R90 and Em are two times of those when B changes. The impact of operation parameters on R90 is three times of that on Em.

Key words: thermal power generation, HP mill, dynamic classifier, coal fineness, specific power consumption

CLC Number:

YUE Junfeng, DING Jianliang, CHEN Bo, ZOU Lei, ZHANG Enxian, HUANG Yaji. Influence of Major Operating Parameters of HP Mill on Coal Fineness and Specific Power Consumption[J]. journal1, 2015, 48(11): 16-21.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.10.11930.2015.11.16

https://www.electricpower.com.cn/EN/Y2015/V48/I11/16

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