rowlock arch

In the paper,the authors present a large coal fired bogie hearth type annealing furnace with the bay of 4 640 mm and the 90° bricked arch roof.

大型燃煤台车式退火炉跨度为４ ６４０ ｍ ｍ ，采用９０°砖砌拱顶，炉门由电动机带动，通过按钮及限位开关控制炉门的开闭；采用多点检测仪显示炉温，圆图记录仪记录一点的温度。