Examples of refractory material configuration for mid-range furnaces

Examples of refractory material configuration for mid-range furnaces

In the glass industry, the quality of furnace refractory materials is of great significance to improving the output and quality of glass products, saving fuel, extending the service life of the furnace, and reducing glass production costs. Poor refractory materials not only limit the operating temperature of the furnace, but also seriously damage the quality of the glass, producing defects such as stones, streaks, bubbles, unnecessary coloring, etc., thus greatly affecting the productivity of the furnace. The working conditions of each part of the furnace are different, and the performance of the refractory materials required is also different. The basic requirements for the refractory materials used in the glass melting furnace are roughly as follows:

(1) It must have sufficient mechanical strength and be able to withstand mechanical loads at high temperatures;

(2) It must have a fairly high refractoriness;

(3) It must have high chemical stability and strong resistance to erosion by molten glass at the operating temperature;

(4) No or minimal pollution to the glass liquid

(5) Has good thermal shock resistance;

(6) The volume is fixed at the operating temperature, and the reheating line shrinkage and thermal expansion rate should be very small;

(7) The homogeneous refractory materials should be easy to process and have accurate dimensions. The unshaped refractory materials should have the same properties as the matching materials. According to the different operating parts and industrial characteristics of the furnace, various refractory materials should be reasonably selected to make all parts of the furnace If it fully functions, it can increase the output, improve the quality of glass, and balance the service life of each part of the kiln body, thereby achieving the purpose of extending the service life of the furnace, reducing fuel consumption, and reducing product costs. As long as you master the properties and characteristics of various refractory materials, understand the working conditions of various parts of the furnace, and study the corrosion mechanism of refractory materials, you can correctly and reasonably select refractory materials.

Flat glass melting furnaces have very different refractory material configurations based on different requirements such as production process form, scale, glass quality, furnace life, and investor's financial strength. For example, furnaces with a service life of less than 5 years There is a world of difference from the refractory materials configured in furnaces that are more than 10 years old. Usually in order to improve the quality of glass and reduce defects in finished glass products, if investment funds allow, refractory materials should be reasonably configured when designing the furnace, and high-quality refractory materials should be selected as much as possible.