Practice of the high blast temperature in 300 m 3BF of Maanshan Iron and Steel Co.Ltd;

Measures to high blast temperature operation;

A series of measures for realizing high blast temperature and long campaign have been taken in the design of ex- ternal combustion type hot air stove provided by Nippon Steel for 4350m~3 blast furnace newly built in Taiyuan Iron and Steel Co.

Application of high temperature combined heat exchanging technology in Pansteel's new No.3 BF;

In the paper,the blast stove of internal combustion at WIS(G)CO, in particular,the construction,refractories,preheating technology,operation on BF gas and control is described With these stoves,the BF can be operated with high temperature balst and run smoothly,efficientl

It can fit the requirement of high temperature very well and represents the new style of hot blast stove.

The new stoves were designed to achieve the high hot blast temperature of 1200℃ with full blast furnace gas with low calorific valve(approx 3000 kJ/m3)by self-preheating process.

The refined material,the reasonable loading system,the high blast air temperature and oxygenrich blast are considered the key of increasing the coal injection volume by analysis of the operational systems and the technological questions after coal infection in the blast furnace of Lingyuan iron and steel works.

Speed regulation scheme of hot fan of Jiangsu Joint Cement Co., Ltd;