Process Control System for DRI-EAF Steelmaking

Product Specifications

Technical details and manufacturing context for Process Control System

Definition

The Process Control System is the central automation component within the Integrated Direct Reduction Iron and Electric Arc Furnace Steelmaking System. It continuously monitors process variables, executes control algorithms, and coordinates operations between the direct reduction iron (DRI) production unit and the electric arc furnace (EAF) to optimize steel production efficiency, quality, and energy consumption. The system operates through a distributed control architecture with sensors collecting real-time data (temperature, pressure, flow rates, chemical composition) from both DRI and EAF processes. Control algorithms process this data to adjust operational parameters, maintain optimal conditions, and coordinate material flow between production stages while ensuring safety protocols and quality standards. The system is scalable, with control system capacity ranging from 1000 to 5000 I/O points, control cycle times of 10–100 ms, and analog input resolution of 16–24 bits. Control accuracy is typically ±0.5–±1.0% for temperature and pressure. The hardware is designed for industrial environments, with operating temperature 0–50 °C (IEC 60068-2-1), storage temperature -20–70 °C (IEC 60068-2-2), relative humidity 5–95% non-condensing (IEC 60068-2-78), and ingress protection IP54–IP65 for field enclosures (IEC 60529). Power supply voltage is 24 V DC ±10% (IEC 61131-2), with power consumption 50–200 W depending on I/O count. Communication protocols supported include PROFINET, Modbus TCP, and EtherNet/IP (IEC 61784). The main controller cabinet weighs 10–50 kg and has typical dimensions 600×800×300 mm. Materials include industrial-grade computing hardware, control software, and communication network infrastructure. All listed values are reference ranges; verify model-specific specifications with the legal manufacturer or supplier.

Working Principle

The system uses a distributed control architecture. Sensors collect real-time data on temperature, pressure, flow rates, and chemical composition from both DRI and EAF processes. Control algorithms process this data to adjust operational parameters, maintain optimal conditions, and coordinate material flow between production stages. The system ensures safety protocols and quality standards are met.

Common Materials

Industrial-grade computing hardware, Control software, Communication network infrastructure

Technical Parameters

Parameter	Typical range	Notes & selection driver
Control System Capacity	1000–5000 I/O points	Scalable to plant size
Control Cycle Time	10–100 ms	Faster for critical loops
Analog Input Resolution	16–24 bit	Higher for precise control
Control Accuracy	±0.5–±1.0 %	Typical for temperature and pressure
Operating Temperature	0–50 °C	For control room equipmentIEC 60068-2-1
Storage Temperature	-20–70 °C	Non-operationalIEC 60068-2-2
Relative Humidity	5–95 %	Non-condensingIEC 60068-2-78
Ingress Protection	IP54–IP65	For field enclosuresIEC 60529
Power Supply Voltage	24 ±10% V DC	Redundant options availableIEC 61131-2
Power Consumption	50–200 W	Depends on I/O count
Communication Protocol	PROFINET, Modbus TCP, EtherNet/IP	Multiple protocols supportedIEC 61784
Weight	10–50 kg	For main controller cabinet
Dimensions (W×H×D)	600×800×300 mm	Typical cabinet size

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Supervisory Control Computer
Executes high-level control strategies and coordinates DRI-EAF integration

Material: Industrial computing hardware
Distributed Control Units
Local process control for specific equipment and subsystems

Material: Industrial-grade electronics
Human-Machine Interface
Operator visualization and manual control capability

Material: Industrial display and input devices
Communication Network
Data exchange between system components and with plant networks

Material: Industrial networking equipment
Process Sensors
Collect the temperature, pressure, flow and composition data the control layer runs on.

Manufacturers of Process Control System

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Junda Intelligent Equipment

Chongqing, CN

Also makes: Hydraulic Cylinder, Water System, Automation System and 3 more

Listed on the company's own website · profile compiled by CNFX from public sources

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Frequently Asked Questions

What is the typical control system capacity?

The control system capacity is scalable, typically ranging from 1000 to 5000 I/O points, depending on plant size. Confirm the exact capacity for your specific model with the manufacturer.

What communication protocols are supported?

The system supports PROFINET, Modbus TCP, and EtherNet/IP, as per IEC 61784. Verify protocol availability for your configuration.

What are the environmental operating conditions?

Operating temperature is 0–50 °C (IEC 60068-2-1), storage temperature -20–70 °C (IEC 60068-2-2), relative humidity 5–95% non-condensing (IEC 60068-2-78), and ingress protection IP54–IP65 for field enclosures (IEC 60529).

What is the power supply requirement?

The power supply voltage is 24 V DC ±10% (IEC 61131-2), with power consumption 50–200 W depending on I/O count. Check the specific model's requirements.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Atmospheric to 50 bar (process dependent)
flow rate:	0.1-500 m³/h (liquid), 10-10,000 Nm³/h (gas)
temperature:	Ambient to 1500°C (monitoring), 0-1200°C (control zones)
slurry concentration:	Up to 60% solids by weight

Process Control System

Product Specifications

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Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards