Below is a detailed explanation of the gasifier's working principle and process:
Feeding System:‌ Fuel (e.g., coal, biomass, or waste) enters the gasifier through the feed inlet. The feeding rate is typically controlled between 50-200 kg/h, depending on the furnace type and processing capacity.
Drying and Pyrolysis:‌ Inside the furnace, the fuel first undergoes a drying stage (at about 150-300°C), where moisture evaporates, followed by the pyrolysis stage (at 300-600°C), where volatile matter is released, forming tar and primary gases.
Oxidation and Reduction Reactions:‌ In the high-temperature zone (800-1200°C), a limited amount of air or oxygen is introduced. Part of the fuel burns to provide heat (oxidation reaction: C + O2 → CO2), while incompletely burned carbon reacts with CO2 and steam (reduction reactions: C + CO2 → 2CO; C + H2O → CO + H2), generating the main combustible gases (syngas).
Gas Purification:‌ The syngas passes through equipment such as cyclones and scrubbers to remove ash, tar, and other impurities, ultimately outputting clean fuel gas (with a calorific value typically of 4-6 MJ/m³).

Application:‌ GeneralFlame Gasifiers are widely used in chemical, metallurgical, and power generation industries, particularly suitable for processing biomass or industrial waste.