The relationship between productivity of the pelletizing shaft furnace and operation and construction factors was established,it could support the design and operating of the industrial process.

The modification of №1 pelletizing shaft furnace in LAIWU I&S Co.

Based on eight times fused lump accident occurred in № 1 shaft furnace of NANGANG pelletizing plant in between June 1997 to march 1998,the mechanism and reason of fused lump in shaft furnace were analyed Some effective measures were proposed and adopted, these were avaiable for other pelletizing shaft furnace referenc

In order to solve the problem that pellet shaft furnace EP's count-corona because service life is too long, the experiment of adopting the pulse power supply to replace the direct current supply for EP was conducted in HANGGANG ironmaking works.

After the improvement on the structure for many times,the 8 m 2 pellet shaft furnace of Jigang has eliminated or reduced lots of original defects.

Investigation of appropriate air/gas rate in 2×8m~2 pellet furnace in No.

4 pellet furnace,realizing computer collection of proportioning running parameters and automatic proportioning control of the pellet.

Technique progresses of ANGANG YONGTONG shaft furnace pelletizing process in resent years were presented in this paper, some of which were developed by YONGTONG itself.

Based on application and research of secondary cooler for shaft furnace pelletizing at home,some problems and drawbacks were pointed out.

The technical and process modifications and the effects in shaft furnace pelletizing plant of E Kou iron ore mine were introduced in this pape

Experimental study on shaft furnace pellet made from different imported concentrates;

In this paper,some troubles existing in the condenser of the shaft furnace pellet system are discussed,and the whole design,principle as well as the prospect of a new secondary condenser named PZ A which could take place of those used at present are introduced.