Preheating method and apparatus for glass batch

Abstract

The invention relates to a pre-heating method and a device especially for glass batch oxy fuel combustion comprising a vessel with an interlayer composed of an inner shell(6) and an outer shell(5), wherein the batch(2) is transported into the inner shell(6) through a belt conveyer(1), while the flue gas from the melting furnace enters into the interlayer of the pre-heating device through an inferior flue gas inlet(8) and is discharged from a flue gas outlet(4) by the draught of the chimney hot air flow. The high temperature flue gas heats the batch to 300-600 DEG C in the interlayer through radiation conduction heat exchange, the pre-heated batch enters into a high temperature heat-resistant sealing pushing batch feeder through a thermal insulation bucket(9) and finally enters into the melting furnace. The advantages of the invention are as follows: pre-heating the batch by flue gas can reach the saving energy purpose and reduce the production cost of the glass production enterprises. The batch can not be polluted by the flue gas because of the radiation conduction heat exchange between the batch and the flue gas.

Description

technical field [0001] This patent relates to a method and device for preheating glass batch materials in the glass production process, in particular to a method and device for preheating batch materials with high-temperature flue gas generated in the process of glass full-oxygen combustion melting. Background technique [0002] Energy supports the development of human civilization. Energy issues are related to the rise and fall, success or failure of a country or a nation. Since the beginning of the 21st century, the world's energy problems have become more and more acute, and the energy crisis has emerged, and the rising price of heavy oil has become one of its symbols. [0003] As a traditional energy-consuming and polluting household, the glass industry has been hit particularly hard by this round of energy crisis. Energy costs account for 30%-50% of the total manufacturing costs of glass manufacturers, and this proportion will continue to increase as energy prices con...

AI Technical Summary

Problems solved by technology

However, the existing glass production method, especially in the oxy-fuel furnace, is to directly put the prepared normal-temperature glass batch into the oxy-fuel furnace for melting, which requires a large amount of heat energy consumption.

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