Glass kiln flue gas outlet structure

Abstract

The present disclosure relates to a flue gas outlet structure of a glass kiln, which comprises a flue (1-2) passing through the kiln wall (1-1) from the inside to the outside and 1) The external smoke pipe (3-1), the adjacent end faces of the flue (1-2) and the smoke pipe (3-1) are sealed and connected by the expansion ring (2-1) and the flue ( 1-2) is in fluid communication with the smoke pipe (3-1); the material of the expansion ring (2-1) meets the following conditions: the heat-resistant temperature is above 1260°C, and the 24-hour linear shrinkage rate at 1000°C is not greater than 1.3% . The flue gas outlet structure of the glass kiln provided by the present disclosure is provided with an expansion ring to connect the flue and the flue, which can effectively prevent the flue and the flue from being cracked or arched due to thermal expansion.

Description

technical field [0001] The present disclosure relates to the technical field of glass preparation, in particular to a glass kiln flue gas outlet structure. Background technique [0002] The temperature of flue gas (exhaust gas) produced by the combustion of fuel in the glass kiln is about 1200°C. With the negative pressure of the flue, the flue gas is continuously discharged to the atmosphere through the brick flue of the kiln. The traditional flue extends from the inside of the kiln wall to the outside to transport the flue gas and is all made of bricks, and the flue and the kiln wall are built as a whole. The connection between the flue and the kiln wall is the flue gas outlet, where the temperature of the flue gas is the highest, so the expansion of the flue changes the most. It is difficult to be relieved and consumed, and the flue is prone to cracking or arching deformation from the inside to the outside. Therefore, every 15-20 days when the temperature of the glass ...

AI Technical Summary

Problems solved by technology

The connection between the flue and the kiln wall is the flue gas outlet, where the temperature of the flue gas is the highest, so the expansion of the flue changes the most. It is difficult to be relieved and consumed, and the flue is prone to cracking or arching deformation from the inside to the outside

Therefore, every 15-20 days when the temperature of the glass kiln is raised, it is necessary to send inspection personnel to inspect and monitor the mouth of the flue, and at the same time control the heating rate of the glass kiln to prevent the flue from cracks or even cracks due to excessive expansion. collapse, the method is laborious and dangerous

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