Structured Manufacturing Data (2026)

Blast Furnace Gas Burner Nozzle

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Blast Furnace Gas Burner Nozzle used in the Iron and Steel Basic Production sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Blast Furnace Gas Burner Nozzle is characterized by the integration of Nozzle Body and Orifice Insert. In industrial production environments, manufacturers listed on CNFX commonly emphasize High-Chromium Stainless Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

High-temperature nozzle for injecting and atomizing blast furnace gas in steelmaking furnaces

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Product Specifications

Technical details and manufacturing context for Blast Furnace Gas Burner Nozzle

Definition
A precision-engineered nozzle component designed for controlled injection of blast furnace gas into steelmaking furnaces. It ensures optimal atomization and mixing of fuel gas with combustion air for efficient heat generation. The nozzle withstands extreme temperatures and corrosive environments while maintaining consistent flow patterns. Critical for maintaining stable furnace temperatures and reducing fuel consumption in iron and steel production processes.
Working Principle
Accelerates and directs blast furnace gas through a precisely shaped orifice, creating controlled turbulence and atomization for efficient combustion when mixed with oxygen.
Common Materials
High-Chromium Stainless Steel, Ceramic-Lined Alloy
Technical Parameters
  • Orifice diameter controlling gas flow rate (mm) Standard Spec
  • Spray angle determining flame pattern and coverage (degrees) Standard Spec
Components / BOM
  • Nozzle Body Part
    Main structural housing containing flow channels
    Material: High-Chromium Stainless Steel
  • Orifice Insert Part
    Precision-machined component defining flow characteristics
    Material: Tungsten Carbide
  • Thermal Barrier Coating Optional Part
    Protective layer reducing heat transfer to mounting assembly
    Material: Ceramic Composite
  • Mounting Flange Part
    Interface for secure attachment to burner assembly
    Material: Carbon Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Blast Furnace Gas Burner Nozzle.

BFG burner nozzle Blast furnace gas injector Steel furnace fuel nozzle blast furnace gas burner nozzle high temperature steelmaking furnace gas injection nozzle high chromium stainless steel burner nozzle ceramic lined alloy gas nozzle blast furnace gas atomizing nozzle

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0.5-3.0 bar (7.3-43.5 psi)
flow rate: 100-5000 Nm³/h (3530-176,500 scfh)
temperature: 800-1600°C (1472-2912°F)
slurry concentration: Not applicable (gas-only application)
Media Compatibility
✓ Blast furnace gas (BFG) with typical composition: 20-30% CO, 15-25% CO₂, 2-5% H₂, balance N₂ ✓ Natural gas (as backup/auxiliary fuel) ✓ Coke oven gas (COG) blends
Unsuitable: Oxygen-enriched environments (>5% O₂) due to explosion risk and material oxidation
Sizing Data Required
  • Required gas flow rate (Nm³/h or scfh)
  • Furnace operating pressure (bar or psi)
  • Required atomization quality (Sauter Mean Diameter or spray angle specification)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal fatigue cracking
Cause: Cyclic thermal stresses from rapid heating/cooling during burner operation, exacerbated by temperature fluctuations in blast furnace gas composition and flow rates.
High-temperature oxidation/corrosion
Cause: Exposure to aggressive combustion products containing sulfur compounds, chlorides, and particulates from blast furnace gas, leading to material degradation and thinning.
Maintenance Indicators
  • Irregular or unstable flame pattern with yellow tipping or lifting from nozzle, indicating poor gas/air mixing or nozzle obstruction.
  • Unusual high-frequency whistling or screeching noise during operation, suggesting gas flow restriction or nozzle erosion altering flow dynamics.
Engineering Tips
  • Implement regular thermographic inspections to monitor nozzle temperature distribution and detect hot spots indicative of thermal stress or refractory lining failure.
  • Optimize burner tuning and gas/air ratio controls to maintain stable, stoichiometric combustion, minimizing thermal cycling and reducing corrosive byproduct formation.

Compliance & Manufacturing Standards

Reference Standards
ISO 13705:2012 (Petroleum, petrochemical and natural gas industries - Fired heaters for general refinery service) ANSI/ASME B31.3:2022 (Process Piping) DIN EN 746-2:2010 (Industrial thermoprocessing equipment - Part 2: Safety requirements for combustion and fuel handling systems)
Manufacturing Precision
  • Bore diameter: ±0.05 mm
  • Nozzle alignment: ±0.1° angular deviation
Quality Inspection
  • Dye Penetrant Test (DPT) for surface crack detection
  • Ultrasonic Thickness Testing (UTT) for material integrity verification

Factories Producing Blast Furnace Gas Burner Nozzle

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Frequently Asked Questions

What materials are used in this blast furnace gas burner nozzle?

This nozzle is constructed from high-chromium stainless steel for durability and features a ceramic-lined alloy interior for enhanced thermal resistance and longevity in high-temperature steelmaking environments.

What is the maximum operating temperature for this nozzle?

The nozzle is designed for maximum operating temperatures up to the specified °C (exact value depends on model), making it suitable for intense heat conditions in blast furnace gas injection applications.

How does this nozzle improve blast furnace gas combustion?

The nozzle features precise orifice design and optimal spray angle to ensure proper atomization and injection of blast furnace gas, promoting efficient combustion and consistent furnace performance in steel production.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Iron and Steel Basic Production.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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