Staged pure oxygen combustion supporting system for horse shoe flame glass melting furnace and method thereof

Abstract

The invention discloses a staged pure oxygen combustion supporting system for horse shoe flame glass melting furnace and a method thereof. The system comprises two pure oxygen combustion spray guns, two pure oxygen lances and an oxygen pipeline control system, wherein the pure oxygen lances and the pure oxygen combustion spray guns are symmetrically arranged on breast walls of the left side and the right side of the horse shoe flame glass melting furnace in sequence from front to back, and the oxygen pipeline control system is connected with the pure oxygen lances and the pure oxygen combustion spray guns and is used for controlling the switching of the pure oxygen lances and the pure oxygen combustion spray guns, and adjusting the flow of oxygen in the pure oxygen lances and the pure oxygen combustion spray guns and the proportion between fuel and oxygen in the pure oxygen combustion spray guns. For the horse shoe flame glass melting furnace, after adopting the staged pure oxygen combustion supporting system and the method, the NOX emission concentration is reduced by 30-40%, and the total energy consumption is reduced by 2-4%, thus saving energy consumption and reducing pollution to environment.

Description

technical field [0001] The invention relates to the technical field of fuel combustion in the glass production process, in particular to a low NO X Disclosed are a staged pure oxygen combustion system and a staged pure oxygen combustion method for a horseshoe flame glass melting furnace. Background technique [0002] Energy conservation and environmental protection are important components of my country's sustainable economic development strategy. With the improvement of living standards, people's requirements for environmental quality are increasing day by day. At present, the country implements energy-saving and emission-reduction policies, implements a total amount control policy for air pollutants, and controls SO in industrial tail gas and furnace dust 2 , NO X Emissions have stricter requirements. [0003] The glass industry is a traditional energy-consuming industry. Under the premise of energy-saving requirements, in order to fully burn the fuel, many glass meltin...

AI Technical Summary

Problems solved by technology

The most commonly used methods are selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR). There are problems such as ammonia leakage, catalyst poisoning, and secondary pollution

In addition, the long-term adoption of this post-treatment method will make the cost of flue gas treatment in glass melting furnaces remain high, which is difficult for glass companies to bear, thus seriously affecting the product competitiveness of glass manufacturers

[0005] The patent application of CN102923933A discloses a gradient oxygen-increasing combustion-supporting method for a glass melting furnace and a special gradient oxygen-increasing combustion-supporting system. Glass melting furnaces generally have six pairs of small furnaces, while horseshoe flame glass melting furnaces have only one pair. The structure of the two is very different, and they are used to produce different types of glass, and have different requirements for flame and temperature. The structure of the combustion system is complicated, so it is not suitable for the horseshoe flame glass melting furnace

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