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Blast Furnace Automation Solutions

Blast furnace automation process mainly includes blast furnace main body control, feeding and batching control, hot blast stove control, dedusting system control, etc.

The purpose of blast furnace automation is to have the four operations well under control: make correct burdening and charge them into the furnace on time according to certain order; make sure furnace burdens descended uniformly; regulate burden distribution and keep good contact with hot gas flow; maintain an appropriate overall thermal state within the furnace. Blast furnace automation system mainly incorporates instrument monitoring and control system, electric control system and computer system for process and management. Instrument control system and electric control system are generally completed by DCS or PLC.

Coking Automation Solutions

Coking automation process mainly includes coke oven main body control, coal blending control, coke sieving control, gas purifying and recycling, dedusting system control, etc. The purpose of coking is to have the four operations well under control:

To realize automatic closed loop control on main parameters such as re-circulated gas main pipe pressure, re-circulated gasmain pressure, etc.;

Manual and power conversion is available for all control operations; bumpless transfer can be realized in closed loop control;

Instantaneous flow and cumulant flow calculation, organization and storage of economic indicators such as output per shift, coking coal quantity of charge, coke output, external gas flow, etc; all Chinese operation interface. Instrument control system and electric control system are generally completed by DCS or PLC.

Revolving Furnace Automation Solutions

Steel-making is to reduce the carbon content, and decrease or increase the content of other elements in the cast iron to a specified range according to different requirements of steel types. To put it simply, steel-making is the process of oxidization and carbon reduction, sulfur and phosphorus removal, and silicomanganese content adjustment of cast iron. Open-hearth furnace and revolving furnace oxygen steel making are usually adopted.

Revolving furnace steel-making is to pour melted iron into the revolving furnace, add certain amount of steel scraps and cast irons to adjust the composition and to cool, as well as certain amount of quick lime to remove sulfur, and blow the oxygen in to remove carbon. Upon drawing a charge, carburant and alloys will be added to adjust the composition.

Major control parameters and measurements of automation are oxygen, nitrogen, argon and various cooling waters;
Automation control equipment and systems: main systems including revolving furnace main body, oxygen lance system and bulk loading system, auxiliary systems including gas cleaning system, evaporative cooling system and gas recovery system.

Project Communication Mechanism

1. SCADA and MES must be based on the same software platform to share services and ensure seamless integration.

2. MES Platform: Comply with MES ISA-S95 Standard; all application modules support Service Oriented Architecture (SOA); the system supports large-scale and collective MES system as well as various operation systems such as Windows, Linux, Unix, etc.; support B/S and C/S mode; high stability and reliability, trunk and redundancy capacity; hot deployment characteristic.

3. Developed Project Extensibility: Standard Product FactoryTalk Pharma Suite specially designed for pharmaceutical production process; able to equip with MES functional module; high extensibility.

4. Combination of Standardization and Flexibility: Thanks to FactoryTalk ProductionCentre platform, the system offers custom-made workflow, work interface, statement, etc. apart from standard flow and function.

5. System Compliance: In designing software to be applied in life science industry, Rockwell Automation has taken industrial regulations into account, such as
Electronic Records and Electronic Signatures of FDA 21 CFR Part 11. Meanwhile, the Project Team will adopt Systems Development Life Cycle (SDLC) methods in compliance with US FDA cGMP to guide various project phases from design, development, testing, execution, test run to acceptance as well as project verification.

6. System Openness: Good openness, able to support secondary script development environment; high custom-made capability; international mainstream interface for automation control system as well as interface for management systems such as ERP, WM, LIMS, etc.; standard interface/data connector to realize real time connection with data sources (Logix, PLC/SLC, FactoryTalk®View, third-party controller, etc.).