The current construction methods for refractory insulation materials used in the melting section and the heat storage chamber swan top can be categorized into two types: cold insulation and hot insulation.

Refractory insulation materials are characterized by reducing heat dissipation and increasing the thermal efficiency of the kiln, as well as ensuring the life of the kiln. After carrying out refractory insulation material insulation, the temperature of the outer surface of the body brick material will be greatly increased, which requires that the quality of the body brick material must be excellent, and also use high-quality mud. This mud should have a certain degree of bonding at room temperature, so that the brick material in the process of kiln baking bond more firmly, Swan brick does not sink or draw. Only in this way can the insulated kiln be in good operating condition and achieve the purpose of heat insulation.

  The specific implementation process of this insulation method

  1. Cold Processing

  (1) Melting part of the big swan and heat storage room top swan

  Swan masonry is completed, with high-quality silica mud thin grout grouting tightly after pulling the strip. Withdraw the swan tires. After 24~48h cold observation to confirm stability, clean up the top of the swan and use high-quality silica mud paving stone, the thickness of which is 10~20mm, and at the same time, the upper part of the paving layer of lightweight thermal insulation bricks, but the middle of the big swan is about 1.5~2m wide and the expansion joints of the swan do not lay thermal insulation bricks.

  (2) Chest wall of melting section

  Lightweight heat preservation bricks are laid in cold state.

  2、Construction of thermal insulation layer in hot state

  (1) Melting part of the big swan and the top swan of the heat storage room

  As the thermal insulation coating is paste-like, and the construction is extremely convenient, so the end of the kiln, card expansion joints and the middle of the top of the swan sealing and lightweight thermal insulation brick laying can be implemented after completion. As the insulation drying process will discharge a large amount of water vapor, so a one-time coating is too thick, it is very easy to fall off, so the first layer of coating thickness should be controlled within 10mm, and then gradually increase the thickness of the coating, until it reaches the requirements of the provisions of the last layer of smoothing can be.

  (2) Side wall parts

  Due to the thermal insulation coating for the paste, paste density, for vertical surfaces one-time coating thickness is thicker, with the internal drying process to release a large amount of water vapor, there is a large area off, so when the surface temperature of more than 50 ℃ above, the requirements of the first layer of coating thickness is generally no more than 2 ~ 3mm, to be the first layer of drying and then coated with a second layer of thickness control in 10mm or so, the third layer of the beginning of the appropriate thickening, until reaching the required thickness, the last layer of smoothing. The third layer can be appropriately thickened until it reaches the specified thickness. The last leveling, and in the water evaporation of about 60% when another calendaring treatment to ensure that the surface is smooth and beautiful. This material is generally not required to waterproof treatment for indoor use.

  As can be seen from the two methods described above, the refractory insulation materials used in glass melting kilns are mainly lightweight insulation bricks and insulation coatings. After the implementation of thermal insulation, it effectively reduces heat dissipation to improve the thermal efficiency of the kiln.