Influence of charge parameters on coke distribution in coke dry quenching furnace
FAN Zheng-yun1,2, YANG Qing-bin3, ZHU Chang-jun4, XUE Li-min1,2, GUO Hai-tao4, YIN You-hao1,2
1.Beijing Key Laboratory of Green Recyclable Process for Iron and Steel Production Technology, Beijing 100043, China;
2.Department of Iron and Steel Technology, Shougang Research Institute of Technology, Shougang Group Corporation, Beijing 100043, China;
3.Manager Office, Tangshan Shougang Jingtang Xishan Coking Co., Ltd., Tangshan 063200, Hebei, China;
4.Department of Production and Technology, Tangshan Shougang Jingtang Xishan Coking Co., Ltd., Tangshan 063200, Hebei, China
In order to solve the problem of the uniformity of coke charging in large-scale coke dry quenching furnace, the coke charging process of 260 t/h large-scale coke dry quenching furnace in Shougang was analyzed by using three-dimensional discrete element method. It was concluded that with the increase of the bell angle, the tip of the coke stack gradually moved toward the center. When the bell angle was 50°, the difference between the coke quality and coke particle size in the x-axis and y-axis directions was the smallest, and the distribution was more uniform. The increase of the stockline level caused the summit of the coke stack to gradually move towards the wall of the reserve chamber. When the stockline level reached 11 m, the double peak shape of the coke stack disappeared, which was not helpful to control the uniform decline of coke in coke dry quenching furnace. Therefore, the best stockline should be less than 11 m.
Yuan K,Nishihara N,Kimurs M,et al.Application of techniques for packed bed analysis to studies on the construction of large coke dry quenching plants[J].Nippon Steel Technical Report,1982,20:95.
FAN Zheng-yun,Satoru Igarashi,Shungo Natsui,et al.Influence of blast furnace inner volume on solid flow and stress distribution by three dimensional discrete element method[J].ISIJ International,2010,50(10):1406.
[11]
Masanori Nakano,Tsukasa Abe,Junya Kano,et al.DEM analysis on size segregation in feed bed of sintering machine [J].ISIJ International,2012,52(9):1559.
[12]
Shingo Ishihara,Rikio Soda,ZHANG Qi-wu,et al.DEM simulation of collapse phenomena of packed bed of raw[J].ISIJ International,2013,53(9):1555.
[13]
Yoichi Narita,Hiroshi Mio,Takashi Orimoto,et al.DEM analysis of particle trajectory in circumferential direction at bell-less top[J].ISIJ International,2017,57(3):429.
[14]
XU Wen-xuan,CHENG Shu-sen,NIU Qun,et al.Effect of the main feeding belt position on burden distribution during the charging process of bell-less top blast furnace with two parallel hoppers[J].ISIJ International,2017,57(7):1173.