In addition to factors such as its main structure and material performance, the thermal insulation structure of the floating glass molten kiln depends largely on the performance of the insulation material. The selection of thermal insulation materials should follow the following principles:
1. Have good thermal insulation performance, that is, the thermal conductivity is small.
2. It has the performance that meets the temperature after using the surface insulation, that is, it has a certain fire resistance.
3. It has high temperature stability, that is, it is not powdery, does not fall off under the use of temperature conditions, and the thermal conductivity is unchanged.
4. Have good chemical stability, that is, it must not erode or corrodes the body structure during use, and the bonding is firm.
5. Have a certain strength and light quality.
6. Economically reasonable.
According to the above principles, the selection of refractory materials for each layer of thermal insulation structure is as follows:
1. Dali and heat storage room top 1
The first layer is a seal layer. Here is a good sealing performance, high fire resistance, and no cracking in dryness and high temperature. After selecting this part, high -quality silicon mud is selected. The adhesiveness is not cracking at high temperature. Its performance is as follows:
Fire resistance: 1675 ℃
Burning line expansion: (1450 ℃ × 3h):-0.1%
Voltage strength: (1450 ° C × 3H): 46.8MPa
True proportion: 2.38g/cm3
The second layer uses light silicon bricks. This layer is due to the low fire resistance of other thermal insulation materials currently available. At the same time, in order to prevent the heat preservation of insulation in thermal insulation coatings, a large amount of water in the paint is directly contacted with high -quality silicon bricks in high temperature state, resulting in silicon bricks, resulting in silicon bricks, resulting in silicon bricks, causing silicon bricks The transition layer set up. This layer only uses a single -layer structure. The advantage is that the overall weight of the heating layer is alleviated, and the thickness of the insulation coatings with better thermal insulation performance can be appropriately increased. At the same time, once the use of bricks is burned out of the process, it is easy to find damage because of the brick gap with no staggered bricks. It is not necessary to unveil the large -scale insulation layer like traditional thermal insulation methods to detect the damage.
The third layer is the sealing layer of the insulation. This layer uses good thermal insulation performance, with suitable refractory resistance and use intensity materials. This material is a white paste, and it is a white solid after drying. It forms a closed microporous structure inside during the drying process, so it has a good thermal insulation effect. Apply, random formation, seamless gap after forming, good overall sealing, when the body is transparent, the surface color changes, and it is easy to find the body damage.
2. Relying on heat storage outdoor wall
Because the outdoor side of the heat storage is 585mm thick, and its brick wall is masonry, its sealing is better.
