【Q&A Question 007】2018.01.07
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【Q&A Question 007】 January 7, 2018: Why is it necessary to dry out a heating furnace after its construction or major repair? The purpose is to gradually remove the moisture that accumulates during the construction of the furnace walls, and to ensure that the refractory mortar undergoes proper sintering. This prevents cracks or deformation in the lining, as well as splitting or collapse of the furnace walls, due to the rapid increase in temperature inside the furnace and the subsequent vaporization of large amounts of moisture, which causes volume expansion. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) For management purposes, if you need to view content from a few days ago, please go through the summary post below. 2018 Hydrogen Production and Refueling Technology Section – Daily Question Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=18889712018 Hydrogen Production and Refueling Technology Section – Daily Image Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888970
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The equipment contains a large amount of moisture during the construction process. The purpose of drying the furnace is to gradually remove this moisture by slowly heating the refractory materials, so as to prevent excessive vaporization and expansion of water when the furnace temperature rises too quickly during operation; this would otherwise cause the furnace body to crack, bulge, deform, or even have its walls collapse. By baking the furnace, the refractory mortar can be fully sintered, thereby enhancing the material’s strength and extending its service life.
Remove the moisture from the furnace walls to prevent cracks or deformation in the furnace lining due to the rapid temperature rise inside the furnace at startup.
The equipment contains a large amount of moisture during the construction process. The purpose of drying the furnace is to gradually remove this moisture by slowly heating the refractory materials, so as to prevent excessive vaporization and expansion of water when the furnace temperature rises too quickly during operation; this would otherwise cause the furnace body to crack, bulge, deform, or even have its walls collapse. By baking the furnace, the refractory mortar can be fully sintered, thereby enhancing the material’s strength and extending its service life.
By removing the crystalline water as well as the free water from the internal refractory materials, cracking or even delamination of the lining during heating is prevented; simultaneously, the refractory materials can be sintered to increase their strength
The purpose of drying the furnace is to gradually remove the moisture accumulated during the wall construction process, and to ensure that the refractory mortar is fully sintered. This prevents cracks in the furnace lining, as well as damage or collapse of the furnace walls, due to the rapid increase in temperature inside the furnace and the subsequent massive vaporization of moisture, which causes expansion.
Answer: Its purpose is to slowly remove the moisture accumulated during the construction of the furnace wall, and to allow the refractory mortar to sinter fully. This prevents cracks or deformation in the lining, as well as splitting or collapse of the furnace wall, that could occur due to the rapid increase in temperature inside the furnace at the time it starts operating, causing large amounts of moisture to vaporize and expand in volume.
By baking the furnace, the moisture in the refractory materials is removed, thereby enhancing their strength and testing the performance of all components under high temperatures
Its purpose is to gradually remove the moisture accumulated during the construction of the furnace wall, and to allow the refractory mortar to sinter fully. This prevents cracks or deformation in the lining, as well as splitting or collapse of the furnace wall, that could occur when the temperature inside the furnace rises rapidly at the start of operation, causing large amounts of moisture to vaporize and expand in volume.
Slowly remove the moisture accumulated during the construction of the furnace walls, and ensure that the refractory mortar is fully sintered, so as to prevent damage to the equipment due to the rapid increase in temperature inside the furnace at the time the plant starts operating, which would cause large amounts of moisture to vaporize
Its purpose is to gradually remove the moisture accumulated during the construction of the furnace wall, and to allow the refractory mortar to sinter fully. This prevents cracks or deformation in the lining, as well as splitting or collapse of the furnace wall, that could occur when the temperature inside the furnace rises rapidly at the start of operation, causing large amounts of moisture to vaporize and expand in volume.