A battery comprises many ovens, each oven being heated indirectly by heat transferred through its refractory walls from flues on each long wall, in which coal gas is burnt under controlled conditions in air.

• 焦化设备是由许多高炉所组成的,其中每一个高炉的长壁上都安有烟道,煤气在这些烟道中在控制下在空气中燃烧,所产生的热通过其耐火壁对高炉进行间接加热。