Important aspects of design of Blast Furnace and associated ancillary equipments The design of the blast furnace (BF) proper and its associated and ancillary equipments (Fig 1) immediately upstream and downstream of the furnace is important for the efficient running of the BF. Besides the furnace proper, the immediate associated equipments include (i) the stock …
Read MoreBlast Furnace Slag and its Role in Furnace Operation The importance of blast furnace (BF) slag in achieving smooth operation of the BF is illustrated by the old saying ‘if you take care of the slag, the furnace will take care of the rest’. There has been a tremendous quantity of work has been done …
Read MoreBlast Furnace Process Automation, Measurement, and Control System The efficient operation of the modern blast furnace needs a high degree of automation in conjunction with a measuring system and a monitoring and control system. The blast furnace process control system in combination with the blast furnace optimization system creates a high level in intelligent blast …
Read MoreBlast Furnace Valves Blast furnace (BF) process needs large quantity and variety of valves. During ironmaking in the BF, a number of gases, utilities, and dust are to be handled. These include (i) combustion gas, combustion air, and waste flue gas in hot blast stoves, (ii) cold air blast, oxygen, and hot air blast, (iii) …
Read MoreHot Blast Stoves High temperature of the air blast blown in the blast furnace has been and remains one of the most important parameters which determine the economic efficiency of the blast-furnace operation. Increase of the air blast temperature reduces the consumption of expensive coke and normally improves blast furnace performance. The hot blast air …
Read MorePreparation and Charging of Blast Furnace Burden Blast furnace (BF), except at its hearth, is basically a passage for gases and burden particles which move in the counter-current directions in the BF. The basic requirement for stable operation of the BF is to maintain in the furnace a moving layer of burden which does not …
Read MoreUnderstanding Ironmaking in Blast Furnace and Dissection studies in Japan The blast furnace (BF) ironmaking is the most viable means of producing hot metal (HM) mainly due to its well established and proven performance, flexible raw material usage, and high thermal energy conservation capability. There are no definitive dates available for the inception of BF …
Read MoreFormation of Scaffold in Blast Furnace Shaft The term scaffold is used when there is accretion or scab formation on the blast furnace (BF) wall which causes a decrease in the cross sectional area of the shaft of the BF. Scaffold can occur relatively at the higher level of the BF shaft or relatively low …
Read MoreBF Coke and its Role in Blast Furnace The raw materials for a blast furnace (BF) normally consist of three types of materials namely (i) metallic materials (sinter, pellets, and calibrated ore lumps or briquettes), (ii) fuels (coke, pulverized coal, oil, and natural gas) and fluxes (limestone, dolomite, and quartzite). Metallic materials, fluxes and coke …
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