processing equipment for blast furnace waste

Blast furnace process automation, measurement, and control system is one of the main contributors to the successful blast furnace operation and belongs to the key factors of its economic effectiveness.

The expert system, which is normally designed as a rule-based decision system, counteracts process fluctuations caused by changes in burden material composition and quality, human factors, and process conditions. The sooner the system responds to an abnormal or changing process situation, the smoother is the overall blast furnace operation.

The problems related to the blast furnace process automation, measurement and control system which are to be dealt range from problems of classical control theory of linear and nonlinear, single, and multivariable systems in process control, to questions of operational and production control. For this, complex operating systems are to be applied.

With the blast furnace optimization system, operators have complete data transparency across the entire process. This enormous variety of process and meta-data (for example, shifts, alarms, and materials) is made transparent, accessible, and understandable through the concise reports generated by the system.

Blast furnace slag is a solid waste formed by gangue in ore, ash in fuel and nonvolatile components in solvent (generally line) in the process of blast furnace ironmaking. It mainly contains oxides of calcium, silicon, aluminum, magnesium and iron and a small amount of sulfide.

Micro blast furnaces can be recommended for integrated waste processing in metallurgical production and coal benefication due to the small effective height of the furnace (no more than 10–12 m) reducing the strength requirements of products following compacting operations for obtaining pellets or briquettes.