Setting method and application of high temperature gas nozzle in convection glass plate heating furnace

Abstract

The invention discloses a method for setting a high temperature gas nozzle in a convection type glass plate heating furnace, and also discloses the convection type glass plate heating furnace designed according to the method. In the invention, all gas nozzles on a whole heating work surface in a furnace chamber are divided into units arranged in matrix, and the temperature of the gas ejected by the nozzle of each unit and / or the gas ejection amount are enabled to be adjustable and the regional control of the high temperature gas convection heating in the furnace chamber is realized; only a cell corresponding to the size of a glass plate can be started to work when a small glass plate is processed, thereby avoiding the waste of energy; and the heating uniformity of the whole glass plate can be ensured by respectively adjusting the heat of different parts of the glass plate applied by each unit when a glass plate with a bigger size is processed, thus the property of the heating furnace is greatly improved, and the technical support is provided for improving the heating quality of the glass plate and reducing the glass processing cost.

Description

Technical field [0001] The invention relates to a method for setting high-temperature gas spouts in a convection type glass plate heating furnace, and a convection type glass plate heating furnace applying the setting method. Background technique [0002] The applicant has previously applied for a Chinese invention patent named "Convection Glass Plate Heating Furnace" with the patent number 200410046386.6. In this convection glass plate heating furnace, the applicant not only uses high-temperature gas convection heating to solve the previous radiation There are problems with heating, and by arranging multiple gas collecting boxes in the furnace cavity along the longitudinal direction of the furnace body, the zone control of the heating area in the furnace cavity is further realized, so that the heating furnace only needs to process small-sized glass plates. Just make the high-temperature nozzles in the local area work, reducing energy consumption. In addition, the use of multipl...

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Problems solved by technology

[0004] However, with the continuous deepening of the research on the glass plate heating process, the applicant found that during the heating process of the glass plate, there is a certain difference in the heat absorption speed between the edge area of ​​the glass plate and the middle area of ​​the glass plate, but it still makes the glass plate There is a temperature difference between the edge area and the middle area, and this temperature difference affects the heating quality of the glass plate and the further improvement of the quality of the final tempered glass product. Therefore, there is still room for improvement in the above-mentioned convection glass plate heating furnace

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