现代的焦炉已有一百多年的历史了,它和一些新的煤处理方法相比,其不足之处更为明显,然而烟煤炼焦必须在固定的情况下加热到非常高的温度,因此传统的焦炉一方面不能完全放弃、但也应采用一些新的工艺技术。二段炼焦法是根据低温热传递用新的方法;高温热传递用旧的焦炉来完成的。 Modern coke ovens have a history of over one hundred years. Compared with some new coal treatment methods, their disadvantages are more obvious. However, coke briquettes must be heated to a very high temperature under a fixed condition, therefore On the one hand, the traditional coke oven can not completely give up, but should also adopt some new technology. Sec coking method is based on a new method of low temperature heat transfer; high temperature heat transfer with the old coke oven to complete.