One Question per Day, September 23, 2015
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There are several constant-temperature stages during furnace drying; what are the purposes of each?
There are several constant-temperature stages during furnace drying; what are the purposes of each? What furnace? Coke oven?
During the heating process of the furnace, once the temperature in the furnace chamber reaches 150°C, it is necessary to maintain a constant temperature in order to remove the natural moisture present in the furnace walls； Maintain a temperature of 320°C to remove the crystalline water from the furnace walls ； Maintaining a constant temperature of 450°C and 500°C ensures thorough sintering of the refractory mortar in the furnace walls.
1. It has four constant temperature ranges: 80, 110, 300, and 600 degrees. 2. 80–110 degrees, water evaporates. Removal of 300 degrees of free water and crystalline water. The crystal form transformation and polymerization are completed at 600 degrees. Sintering strength at 800 degrees, thermal stress on both sides.
This post was last edited by ylb913 on 2015-9-23 at 11:29. We obtain our drying curve specifications from the lining manufacturer, but the constant-temperature phase varies slightly with each drying cycle. Let’s take one example: 150°C constant temperature – to remove free water (surface water); in some cases, two constant temperature stages of 110°C and 150°C are required ； 350 Constant temperature: Remove crystalline water ； 540-degree constant temperature: observation section, which has two constant-temperature sections at 450 degrees and 600 degrees ； 815 degrees constant temperature: to burn off organic matter; this is done at a constant temperature of 900 or 1000 degrees as well ； 1200 degrees constant temperature: sintering stage.
There are several constant-temperature stages during furnace drying; what are the purposes of each? There are constant-temperature stages at 80, 110, 300, and 600 degrees, and the purpose of these stages is to remove the physical and crystalline water present in the refractory materials, thereby ensuring that the refractory materials do not get damaged due to sudden changes in temperature.
Depending on the lining material, there are generally two constant-temperature zones: the low-temperature zone is used primarily to remove free water, while the high-temperature zone is used mainly to remove the crystalline water within the lining.
150 Constant temperature: Remove surface water. 350°C constant temperature: to remove crystalline water. 540 degrees constant temperature: sintering.