PULVERIZED COAL INJECTION OPTIMIZING THE BLAST FURNACE PROCESS
The injection of reduction agents via the tuyeres is now common practice world–wide in blast furnace operation.The benefits of reduced coke consumption and increased production due to the removal of nitrogen from the blast with increasing oxygen enrichment have been recognized by the industry.In choosing an injection system,the user faces a choice of designs with fundamental differences,the most important of which is the type of flow control.Among the most common systems in the industry,some feature active flow control e.g.through the application of throttling valves,whereas flow control in the Danieli Corus system is based on physical principles such as uniform pressure drop across injection lines.For an optimized blast furnace process,production rates in front of the individual tuyeres should be balanced,and the production in front of a tuyere depends on the local coal to gas ratio.This article discusses how various designs perform in this respect.
Blast Furnace Producitivity Coal Injection
Bala K.Paramanathan
国际会议
Asia Steel International conference 2012(第五届亚洲钢铁大会)
北京
英文
1-8
2012-09-23（万方平台首次上网日期，不代表论文的发表时间）