燃高炉煤气台车式热处理炉的设计

以纯高炉煤气为燃料,设计节能新型台车式热处理炉,采用高速烧嘴、脉冲燃烧控制系统、全纤维复合炉衬等技术,大幅度降低了热处理工序成本,经济效益明显。     

改善入炉烧结矿粒级研究及生产实践

通过分析研究烧结矿粒级变化趋势、粉率变大原因,强化对烧结生产原燃料加工、加水混合、布料点火、烧结冷却等环节的控制,采取改善烧结矿粒级有效措施,优化烧结矿粒级,使烧结矿粒级分布满足高炉生产要求。     

Uniformity of Blast-Furnace Parameters over the Perimeter

Operational experience with the 5000-m³ blast furnace 9 at the Krivorozhstal plant shows that nonuniform blast distribution over the tuyeres results in very nonuniform distribution of the theoretical combustion temperature, the yield of blast-furnace gas, and the total energy of the blast flux and flux of blast-furnace gas over the hearth perimeter. That, in turn, significantly affects the smoothness of furnace operation, its productivity, the coke consumption, and the quality of the hot metal produced. The influence of 1% change in the variation coefficients of the input blast parameters on the productivity and coke consumption is taken into account. The results may be used in factorial analysis of periods of blast-furnace operation with different parameters. The nonuniform distribution of the blast flow rate over the tuyeres has the greatest influence on furnace performance. Therefore, it is necessary to find means of ensuring uniform distribution of blast at constant temperature over the tuyeres.     

Extending the Life of Blast-Furnace Air Tuyeres

Metallurgist - Air tuyeres are the most thermally stressed components of blast furnaces; therefore, extending their life is of importance. Operating experience suggests that the intensification of...     

Improvement of the Function of Blast-Furnace Air Tuyeres

Metallurgist - This article discusses the main ways of improving the operation of blast-furnace air tuyeres: increasing the service life by applying protective coatings and changing the tuyere...     

Best Available Techniques in the Blast-Furnace Production*

Metallurgist - The conference “Best Available Techniques in the Blast-Furnace Production” was organized by the “Russkaya Stal” Trade Association, the International Union of...