HTS Eclipse – PrimeFire 400 Oxy-Fuel Burner

Overview

The Honeywell PrimeFire 400 is a nozzle-mixing, flat-flame oxy-fuel burner designed for glass melting applications. It features a patented gas cracking technology in which a pre-combustor at the back of the burner mixes a portion of the combustion oxygen with the fuel stream prior to main combustion. This process produces free carbon particles that increase flame luminosity and improve radiant heat transfer to the glass load, resulting in higher furnace efficiency and more uniform heat distribution.

The PrimeFire 400 is available in four capacity sizes — 2, 4, 10, and 20 MMBtu/hr — and supports a 4:1 turndown ratio. The burner’s flat-flame geometry promotes extended flame coverage across the glass surface, which helps protect furnace refractory and improve product quality. The reduction in peak flame temperatures inherent to the gas cracking process also results in lower thermal NOx formation compared to conventional oxy-fuel burners.

Features & Benefits

• Patented gas cracking technology — pre-combustor mixes oxygen into the fuel stream, generating free carbon particles that increase luminosity and radiant heat transfer to the glass load
• Flat-flame geometry — provides enhanced flame coverage and uniform heat distribution across the glass surface
• Up to 18% reduction in thermal NOx — lower overall flame temperature reduces NOx formation compared to conventional oxy-fuel burners
• Four available capacity sizes — 2, 4, 10, and 20 MMBtu/hr to match a wide range of furnace requirements
• 4:1 turndown ratio — supports flexible firing rate control for varying process demands
• Non-water cooled design — simplifies installation and reduces auxiliary system requirements
• Dual-fuel capability — can be fired with natural gas or fuel oil
• Simple carbon deposit maintenance — shut off gas for 15–20 seconds with oxygen flowing to burn off deposits

Technical Specifications

• Burner type: Oxy-fuel flat-flame, nozzle-mixing with gas pre-combustor
• Capacity range: 2,000,000 to 20,000,000 Btu/hr (2, 4, 10, 20 MMBtu/hr)
• Turndown ratio: 4:1
• Flame geometry: Flat flame
• Flame length: 0.8 to 2.44 m
• Flame velocity: 15.5 to 48.8 m/s
• NOx reduction: Up to 18% reduction in thermal NOx
• Fuel type: Natural gas or fuel oil
• Cooling: Non-water cooled
• Oxygen nozzle material: 304 stainless steel (2MM–10MM), 446 stainless steel (20MM)
• Gas nozzle material: Inconel 600 (2MM–10MM), 446 stainless steel (20MM)
• Maintenance: Shut off gas for 15–20 seconds with oxygen flowing to burn off carbon deposits

Applications

• Glass melting furnaces
• Applications requiring enhanced flame coverage and uniform heat distribution
• Processes where reduced NOx emissions are required
• High-radiant-heat-transfer applications where increased luminosity improves energy efficiency
• Furnaces where extended refractory life is a priority

Models / Configurations

• • PrimeFire 400 02MM – 2,000,000 Btu/hr capacity; oxygen nozzle: 304 stainless steel, gas nozzle: Inconel 600
  • PrimeFire 400 04MM – 4,000,000 Btu/hr capacity; oxygen nozzle: 304 stainless steel, gas nozzle: Inconel 600

• PrimeFire 400 10MM – 10,000,000 Btu/hr capacity; oxygen nozzle: 304 stainless steel, gas nozzle: Inconel 600
• PrimeFire 400 20MM – 20,000,000 Btu/hr capacity; oxygen nozzle: 446 stainless steel, gas nozzle: 446 stainless steel

PrimeFire 400 Accessories

• Mounting Brackets – Furnace mounting hardware for PrimeFire 400 burners; refer to Docuthek for available configurations specific to each capacity size
• Flange Mounting Gasket (020797) – Flange mounting gasket for the PrimeFire 400 10MM burner

Documentation