Spontaneous combustion of the iron chip in the absorption tower for yellow prussiate of soda happens frequently in the course of mending and packing iron chip,and it is a severe safety hidden trouble.

• 焦化黄血盐系统内的吸收塔在停产检修补充填料铁刨花期间,经常发生铁刨花自燃现象,这是严重的事故隐患。