Firing system

General
The melting combustion system is engineered for glass melting furnaces to deliver controlled heat input across a range of furnace types and production scales. Multiple combustion technologies and energy-source configurations are available to match process requirements for different glass products.

Performance

• Optimised energy consumption per melting ton
• Reduced emissions and controlled NOx formation
• High operational reliability for continuous production
• Low maintenance design with accessible subsystems

Gas energy source - Melting combustion system components

• Gas pressure regulation and safety devices
• Gas dosing and flow control modules
• Air/oxygen dosing and flow control
• Flame/reversal control unit

Liquid energy source - Melting combustion system components

• Heavy oil pumping, heating and conditioning
• Heavy oil dosing and flow control
• Air/oxygen dosing and flow control
• Flame/reversal control unit
• Compressed-air atomising/spray system

Combustion systems design & standards
Systems are designed to comply with applicable safety and industry standards by market (e.g. EN746/2 for Europe, UL/NFPA for the USA, GOST for Russia). Engineering for classified areas (ATEX, NFPA) and SIL2 safety levels is available on request. Equipment is specified for continuous 24/7 operation with redundancy on critical elements, high-reliability components and manual bypass options to ensure fuel feeding under fault conditions.

Furnace types and combinations (technology / energy media / furnace size / glass type)
Recuperative unimelter or back fired | Natural gas, heavy oil, LPG | 1-120 TPD | Tableware, artistic, container, sodium silicate, glass wool, borosilicate, rolled glass
Regenerative end fired | Natural gas, heavy oil, LPG | 60-300 TPD | Tableware, artistic, container, glass wool, sodium silicate, rolled glass
Regenerative cross fired | Natural gas, heavy oil, LPG | 200-500 TPD | Container
Oxy fuel | Natural gas, heavy oil, LPG | Not limited | Tableware, artistic, container, sodium silicate, glass wool, borosilicate

Characteristics / Technical specifications

• Product name: Furnace Melting Combustion
• Applicable furnace types: recuperative unimelter/back fired, regenerative end fired, regenerative cross fired, oxy fuel
• Supported energy media: natural gas, heavy oil, LPG
• Furnace size ranges: from 1 TPD up to 500 TPD depending on furnace type (see table)
• Suitable glass types: tableware, artistic, container, sodium silicate, glass wool, borosilicate, rolled glass
• Key subsystems for gas: pressure governors, gas dosing and flow control, air/oxy dosing, reversal unit
• Key subsystems for liquid fuel: pumping & heating, dosing & flow control, air/oxy dosing, reversal unit, compressed air spray
• Standards & certifications: design available per EN746/2, UL/NFPA, GOST, ATEX, SIL2 as required
• Designed for continuous 24/7 operation with redundancy and high-reliability components