Glass kilns work in harsh environments, and kiln lining material damage is mainly affected by the following factors

 1, chemical erosion

    Glass liquid itself rich in silica, is acidic. When the kiln liner material in contact with the glass, or in the gas-liquid phase, powder, dust flying and so on, under the influence of chemical corrosion. Especially the bottom of the pool and the pool wall, long-term erosion by the glass, chemical corrosion is more serious. In the regenerator lattice turn, flue gas temperature is high, more dust and other conditions are very harsh. Therefore, the choice of refractory materials, anti-erosion is the most critical. The bottom pool wall material should be acidic. In recent years, important parts of the molten pool priority use AL2O3-ZrO2-SiO2 series of fused brick, such as zirconium corundum. In addition there are high-quality silicon brick and so on.

    Taking into account the particularity of the structure of the kiln pool, the pool wall and the bottom of the pool are used instead of brick building, ancient materials to the main cast.

    2, mechanical erosion

    Mechanical erosion is mainly the strong erosion of the glass flow, such as the Ministry of melting kiln Department. Followed by the mechanical washing of materials such as feeding mouth. Refractories used for this purpose should have high strength and erosion resistance.

    3, high temperature effect

    Glass kiln operating temperature up to 1600 degrees, the temperature fluctuations in various parts of 100-200 degrees. It should also be noted that the kiln liner is served under the action of long-term high temperatures, the material should be able to withstand high temperature erosion, but also do not pollute the glass liquid.

   Parts of the glass furnace that are not in contact with the glass, such as the kiln roof kiln wall and the spout, charging system, etc. of the upper structure, are damaged by the high temperature effect, the dust scour and the chemical attack of various volatiles. Volatiles derived from the glass liquid, batch and combustion products, the main component is alkali metal oxides and so on. These volatiles are in the form of alkali vapors at high temperatures and condense to liquid phases at low temperatures.