Spray nozzle brick for oxy-fuel combustion spray gun, manufacturing method and spray gun and melting furnace with spray nozzle brick

Abstract

The invention discloses a spray nozzle brick for an oxy-fuel combustion spray gun, a manufacturing method, the oxy-fuel combustion spray gun and a glass melting furnace with the spray nozzle brick, glass and a firing method of the glass. The spray nozzle brick has the beneficial effect that a spraying opening has the advantages of wide fuel use range (capable of using natural gas, coke stove gas, heavy oil, coal tar and petroleum tar powder), sufficient combustion, large flame coverage surface, high flame blackness, less NOx generation amount, gradient combustion, adjusting of oxidizing and reduction atmospheres according to types of melting glasses and the like, the melting atmosphere of the glass melting furnace can be adjusted, and the oxy-fuel combustion and oxy-fuel combustion supporting technologies are favorable for being popularized and applied in the glass melting furnace.

Description

technical field [0001] The invention relates to the technical field of glass manufacturing, in particular to a nozzle brick for an oxy-fuel combustion spray gun, a manufacturing method and an oxy-fuel combustion spray gun made of the same, a glass melting furnace, glass made by the glass melting furnace and the firing process of the glass. system method. Background technique [0002] my country is facing increasingly severe energy supply shortage and environmental pollution prevention and control situation. The glass industry is not only a large energy consumer, but also a NO X At the same time, high-quality and high-quality float glass also requires more advanced combustion technology and glass melting technology. [0003] The energy saving and consumption reduction of glass melting furnaces has always been a major concern of the industry. With the increasing energy crisis, the excessive dependence of glass melting furnaces on high-quality energy has restricted the develop...

AI Technical Summary

Problems solved by technology

The softening temperature and oxygen fuel flame erosion resistance of existing nozzle bricks cannot meet the long-term service requirements of oxy-fuel combustion furnaces (generally, a kiln period of oxy-fuel combustion furnaces is about 10 years, during which nozzle bricks generally does not need to be replaced), it will be burned out soon and needs to be replaced, the operating cost of the oxy-fuel furnace will increase, and the operation stability of the furnace will also decrease, and the quality of the molten glass will also decrease

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