2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 6: Yagi Intl. Symp. / Metals & Alloys Processing

Editors:Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A
Publisher:Flogen Star OUTREACH
Publication Year:2016
Pages:480 pages
ISBN:978-1-987820-46-1
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
CD-SIPS2016_Volume1
CD shopping page

    Influence of coal gas pressure on coke cake extrusion behaviors and oven wall displacement of commercial coke oven

    Sadayoshi Aizawa1; Takumi Kawaguchi2; Nakashi Satoh1; Kazuya Uebou1; Seiji Nomura1;
    1NIPPON STEEL AND SUMITOMO METAL CORPORATION, Futtsu, Japan; 2NIPPON STEEL AND SUMITOMO METAL CORPORATION, Wakayama, Japan;
    Type of Paper: Regular
    Id Paper: 98
    Topic: 3

    Abstract:

    During carbonization of coal in coking chamber, the gas pressure of plastic layer gives lateral force (coking pressure) against oven wall. Gas pressure is influenced by characteristics of coal and bulk density, excessive coking pressure damages oven chamber wall.
    And it is thought that clearance between coke cake and oven wall decreases by the effect of coking pressure. As a result, coke cake extrusion force is increased. Increasing extrusion force causes enlargement of wall pressure during coke cake discharge.
    Those wall pressures have a significant impact toward coke oven, especially aging coke oven.
    Therefore, obtaining knowledge about effectiveness and mechanism of coking pressure to extruding force is important for prolongation coke oven life.
    We changed the gas pressure of coal blend and measured gas pressure of charging coal and internal gas pressure, at 40 years age commercial oven. Furthermore, we measured the displacement of oven chamber wall during carbonization, by apparatus able to accurately measure the width of carbonization chamber. This report described these result.

    References:

    [1] S.Ishikawa, M.Uchida, T.Honda, C.Uematsu: CAMP-ISIJ, 22 (2009), 154
    [2] K.Uebo, S.Miyashita, S.Ishikawa, C.Uematsu: Jounal of the Japan Institute of Energy, 90 (2011), 846-852
    [3] Y.Tsunashima, H.Tagawa, S.Aizawa: CAMP-ISIJ, 19 (2006), 750

    Full Text:

    Click here to access the Full Text

    Cite this article as:

    Aizawa S, Kawaguchi T, Satoh N, Uebou K, Nomura S. Influence of coal gas pressure on coke cake extrusion behaviors and oven wall displacement of commercial coke oven. In: Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A, editors. Sustainable Industrial Processing Summit SIPS 2016 Volume 6: Yagi Intl. Symp. / Metals & Alloys Processing. Volume 6. Montreal(Canada): FLOGEN Star Outreach. 2016. p. 340-345.