Title:
粉砕プラントにおけるプロセス制御方法、粉砕プラントにおけるプロセス制御装置、およびプログラム
Document Type and Number:
Japanese Patent JP6702109
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To estimate a calory of fuel gas supplied to a burner at a pulverization plant without using any exclusive measurement instrument.SOLUTION: A flow rate Fof steam derived from coal and a flow rate F+Fof impossible observation air are derived in reference to diffusion gas flow rate balance model and oxygen concentration balance model under application of a flow rate Fof fuel gas (BFG), a flow rate Fof combustion air, a flow rate Fof dilution air, a flow rate Fof diffusion gas and Oconcentration at an exhaust side of a bug filter. Moisture content of coal is derived on the basis of a flow rate Fof steam derived from coal, a fed amount of coal pre-fed as an operating condition and a moisture content of product that is given in advance as environmental condition. Then, a calory of fuel gas (BFG) is derived through the heat balance model under application of a flow rate Fof steam derived from coal and a flow rate of impossible observation air F+Fand a moisture amount of coal.SELECTED DRAWING: Figure 1
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Inventors:
Suzuki Dai
Hiroshi Shibamoto
Hiroshi Shibamoto
Application Number:
JP2016179855A
Publication Date:
May 27, 2020
Filing Date:
September 14, 2016
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
F23K3/02; B02C21/00; F23N5/00
Domestic Patent References:
| JP2014114994A | ||||
| JP52118634A |
Foreign References:
| US20110271587 |
Attorney, Agent or Firm:
Takayoshi Kokubun