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1. 发明申请

WO2018177510A1 IMPROVED PROCESS FOR CONDUCTING A COKE OVEN 审中-公开
公开(公告)号：WO2018177510A1
公开(公告)日：2018-10-04
申请号：PCT/EP2017/057304
申请日：2017-03-28
申请人： THYSSENKRUPP COMPANHIA SIDERÚRGICA DO ATLÂNTICO , THYSSENKRUPP AG
发明人： JUNQUEIRA, Yan Samuel Ferreira , HENRIQUE, Neussias Inocencio , ANACLETO, Savio Luiz
IPC分类号： C10B15/02 , C10B41/00
CPC分类号： C10B15/02 , C10B41/00
摘要： The present invention relates to a process for the preparation of coke from coal in a coke oven, to a coke oven and to the use of this coke oven to prepare coke from coal. The process for the preparation of coke from coal in a heat recovery coke oven comprises at least the following steps: (A) Providing coal (1) in the at least one primary chamber of the coke oven, (B) At least partial combustion of gas released from the coal in the at least one primary chamber by introducing air through the at least one moiety for providing air (4) to the at least one primary chamber, and carbonization of the coal to obtain coke at a temperature T1, (C) Combustion of the remaining gas released from the coal in the secondary chamber (6) at a temperature T2, wherein this remaining gas has been guided to the at least one secondary chamber (6) through the connection (5) between the at least one primary chamber (2) and the at least one secondary chamber (6), by introducing air through the at least one moiety for providing air (8) to the at least one secondary chamber and (D) Removing the off-gas obtained from steps (B) and (C) through the at least one collector (9), wherein temperature T2 is measured in predefined time intervals during steps (B), (C) and (D) and the at least one moiety for providing air (60) to the at least one secondary chamber is adjusted depending on a comparison of T2 with a value SP2 calculated from T2 of the foregoing time interval, wherein the first value SP2 is predefined at the beginning of step (B). According to a preferred embodiment of the process according to the present invention, SP2 is calculated according to the following method: The first value of SP2 is set by the operator. After certain a certain time interval, for example 20 minutes, temperature T2 is measured and the central processing unit calculates if the difference of SP2 and T2 (SP2 - T2) has increased or decreased during the time interval. For example, if SP2 - T2 has increased more than 2°C, SP2 is recalculated and the new SP2 is the old SP2 + 5 to 14 °C. Further, if SP2 - T2 has decreased more than 1 to 5 °C, SP2 is recalculated and the new SP2 is the old SP2 - 10 to 25 °C.

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