Top-spraying combustion type glass smelting method

Abstract

A top spray combustion type glass melting method, characterized in that a thick glass batch layer (4) is supported on the glass melt (2) in the glass melting pool (1), and a certain amount of combustion The gas nozzle (5) is vertically distributed and inserted into the glass batch material layer (4), and its nozzle is placed at the bottom of the glass batch material layer (4) or in the glass melt 2, and the high-temperature combustion gas ejected is in the glass batch material layer ( 4) to form an airflow channel (8), after it rushes into the glass melt (2), it rebounds in reverse and enters the bottom of the glass batch material layer (4) around the combustion gas nozzle (5) and continues to rise, and then flows through the glass batch The middle and upper part of the material layer (4) enters the flue (7) and then empties; and during this flow process, the glass melt (2) is heated, the glass batch material at the bottom of the glass batch material layer (4) is melted, Pre-melting and preheating the glass batch material in the upper part of the glass batch material layer (4).

Description

technical field [0001] Glass furnace. Background technique [0002] Glass melting is the most important and core process in the glass manufacturing process. Its advantages and disadvantages play a decisive role in environmental protection, energy saving and emission reduction, as well as the manufacturing quality and cost of glass. [0003] At present, the continuous melting of molten glass with fuel all adopts the surface heating method of cross flame or horseshoe flame. It has several insurmountable shortcomings: first, low thermal efficiency and serious heat loss; second, low melting rate; third, high gas temperature and high flow rate in the combustion space of the melting pool, which erodes the kiln refractories quickly, reducing the service life of the kiln. In order to save energy, reduce emissions, reduce costs and improve the service life of kilns, more effective heating methods are being explored at home and abroad to replace surface heating, such as immersion c...

AI Technical Summary

Problems solved by technology

It has several insurmountable shortcomings: first, low thermal efficiency and serious heat loss; second, low melting rate; third, high gas temperature and high flow rate in the combustion space of the melting pool, which erodes the kiln refractories quickly, reducing Furnace service life

In order to save energy, reduce emissions, reduce costs and improve the service life of kilns, more effective heating methods are being explored at home and abroad to replace surface heating, such as immersion combustion, but they are restricted by technical bottlenecks such as clarification, fuel, burners, and refractory materials. , has not been put into practical application

Images