Maintenance Practice For Blast Furnace Equipment Based On RCM Theory

This thesis is based on the No. 2 blast furnace(BF) of the Baosteel Group. Here, we put the RCM theory into practice and fulfilled its use in the maintenance of blast furnace equipment.The Baosteel Group is the biggest and most advancing iron-steel company in China. Most of the BF maintenance practice are based on the theory of CBM and AM nowadays. Although there are many obvious traits in this kind of maintenance program, it is impossible to give attention to both sides of integrity and cost. However, the RCM method can meet it very well.In the thesis, we firstly introduce the RCM theory, then we put it to the full use of analysis of equipment of Baosteel No.2 BF, and lastly we got a whole RCM program on equipment of BF. As the core of the iron system, the BF has a large number of equipment, and some advanced instruments are technical protected, so it is impossible to analyze every piece of equipment here. Provided this condition, we just discuss the key parts of BF. The main coverage includes dust system, cooling system, gas supply system, refractory etc. Besides ,we has centered on the core part of RCM–decision table. But for the sake of integrality of maintenance program, here we introduced the principles of other necessary parts, including construction of the data, combination of repair works. But those are not only appeared in RCM program, so this part of work is rather summary.Through the RCM analysis on equipment of No.2 BF of Baosteel,comparing the exist practice,we found that new maintenance method can not only improve the reliability of equipments with dangerous failure affect, but also prolong the service life of the whole equipment of BF under the asked safety.