---
title: "Integrated Blast Furnace and Basic Oxygen Furnace Steelmaking System"
industry: "Iron and Steel Basic Production"
verification_protocol:
  urn: "URN:CNFX:ME:INTEGRATED_BLAST_FURNACE_AND_BASIC_OXYGEN_FURNACE_STEELMAKING_SYSTEM"
  data_integrity_hash: "563452bb3195a041a4d135fa9736d932"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:INTEGRATED_BLAST_FURNACE_AND_BASIC_OXYGEN_FURNACE_STEELMAKING_SYSTEM"
  data_source_uri: "https://cnfx.com/llms/industry/iron-steel-basic-production/product/integrated-blast-furnace-and-basic-oxygen-furnace-steelmaking-system.md"
  official_resource_url: "https://cnfx.com/industry/iron-steel-basic-production/product/integrated-blast-furnace-and-basic-oxygen-furnace-steelmaking-system"
  is_verified_logic: true
attributes:
  annual_capacity:
    status: "config-dependent"
    typical_range: "Scalable via configuration"
    unit: "million tonnes/year"
  hot_metal_temperature:
    status: "config-dependent"
    typical_range: "1200-1500°C"
    unit: "°C"
engineering_limits:
  max_safe_operating_point:
    value: 1150
    unit: "°C"
    consequence: "Refractory spalling due to thermal cycling stress exceeding 40 MPa compressive strength; tuyere blockage from zinc/alkali vapor condensation below 800°C dew point; BOF lining erosion when MgO-C refractory wear exceeds 2 mm/heat"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Hot metal silicon content exceeding 1.2%"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install laser-induced breakdown spectroscopy for real-time silicon analysis with desiliconization station bypass"
  - node_2:
      trigger: "Oxygen purity drop below 99.5% at 30000 Nm³/h flow"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dual-path cryogenic distillation system with automatic purity compensation control"
bom_nodes:
  blast-furnace-structure:
    type: "part"
    urn: "URN:CNFX:ME:BLAST_FURNACE_STRUCTURE"
    interface_type: "physical-logic-coupled"
  hot-metal-torpedo-car:
    type: "part"
    urn: "URN:CNFX:ME:HOT_METAL_TORPEDO_CAR"
    interface_type: "physical-logic-coupled"
  basic-oxygen-furnace-vessel:
    type: "part"
    urn: "URN:CNFX:ME:BASIC_OXYGEN_FURNACE_VESSEL"
    interface_type: "physical-logic-coupled"
  oxygen-lance-system:
    type: "part"
    urn: "URN:CNFX:ME:OXYGEN_LANCE_SYSTEM"
    interface_type: "physical-logic-coupled"
  gas-cleaning-plant:
    type: "part"
    urn: "URN:CNFX:ME:GAS_CLEANING_PLANT"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/iron-steel-basic-production/product/integrated-blast-furnace-and-basic-oxygen-furnace-steelmaking-system.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "bdd6167605623b79291a78cb24d413dc9b86d74a3b9a27b10e5639aefb2fb65f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Integrated Blast Furnace and Basic Oxygen Furnace Steelmaking System

## 1. Technical Definition
Coordinated ironmaking and steelmaking system converting raw materials to liquid steel.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.15-0.25 MPa top pressure, 1200-1500°C hearth temperature, 0.8-1.2 m/s gas velocity in bustle pipe**. Failure boundary: **Hearth temperature below 1150°C causes slag solidification; top pressure exceeding 0.3 MPa risks refractory lining failure; oxygen lance cooling water flow below 15 m³/h causes lance burnback**, Mechanism: **Refractory spalling due to thermal cycling stress exceeding 40 MPa compressive strength; tuyere blockage from zinc/alkali vapor condensation below 800°C dew point; BOF lining erosion when MgO-C refractory wear exceeds 2 mm/heat**.

### 2.1 Analytical Physics Model
Governed by the **LMTD Logarithmic Mean Temperature Difference**:

> **Primary Equation**: $Q = U \cdot A \cdot \Delta T_{lm}$  
> **Engineering Impact**: Sizing validation for pasteurization and cooling tunnels.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| U | Heat Transfer Coeff | Engineering Constant |
| A | Area | Engineering Constant |
| \Delta T_{lm} | LMTD | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Hot metal silicon content exceeding 1.2% | 8 | Excessive slag foaming causing BOF overflow and lance clogging | Install laser-induced breakdown spectroscopy for real-time silicon analysis with desiliconization station bypass |
| Oxygen purity drop below 99.5% at 30000 Nm³/h flow | 8 | Incomplete decarburization leaving carbon content above 0.06% in final steel | Dual-path cryogenic distillation system with automatic purity compensation control |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| annual_capacity | Config-dependent | million tonnes/year | Verified |
| hot_metal_temperature | Config-dependent | °C | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Blast Furnace Structure](https://cnfx.com/llms/industry/basic-metal-manufacturing/product/blast-furnace-structure.md) `(Standalone System)`
- [Hot Metal Torpedo Car](https://cnfx.com/llms/industry/basic-metal-manufacturing/product/hot-metal-torpedo-car.md) `(Standalone System)`
- [Basic Oxygen Furnace Vessel](https://cnfx.com/llms/industry/basic-metal-manufacturing/product/basic-oxygen-furnace-vessel.md) `(Standalone System)`
- [Oxygen Lance System](https://cnfx.com/llms/industry/basic-metal-manufacturing/product/oxygen-lance-system.md) `(Standalone System)`
- [Gas Cleaning Plant](https://cnfx.com/llms/industry/basic-metal-manufacturing/product/gas-cleaning-plant.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Continuous Casting Machine**, **Hot Blast Stove System**, **Gas Cleaning and Recovery System**  
**Downstream Applications**: Steel Slabs, Steel Billets, Steel Blooms  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What are the key components of this integrated steelmaking system?
**A**: The system includes a blast furnace structure, basic oxygen furnace vessel, gas cleaning plant, hot metal torpedo car, and oxygen lance system for complete iron-to-steel conversion.

### Q: How does this system optimize energy consumption in steel production?
**A**: The integrated design coordinates ironmaking and steelmaking processes to minimize heat loss, with system energy consumption measured in GJ/tonne of steel produced.

### Q: What materials are used in the construction of this steelmaking system?
**A**: The system utilizes refractory linings for high-temperature resistance, carbon steel structural plates for durability, and copper cooling plates for efficient heat management.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Integrated Blast Furnace and Basic Oxygen Furnace Steelmaking System](https://cnfx.com/industry/iron-steel-basic-production/product/integrated-blast-furnace-and-basic-oxygen-furnace-steelmaking-system)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **5** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: INTEGRATED_BLAST_FURNACE_AND_BASIC_OXYGEN_FURNACE_STEELMAKING_SYSTEM | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: dd04ae26
