Analyze the effect of the ring mortar of the induction furnace

1. After drying, the furnace ring insulating mortar layer with a thickness of 8-15mm has an outstanding insulation function, which can completely replace mica and glass cloth, acting as the insulation maintenance layer between the furnace ring and the furnace lining; the thermal conductivity of the mortar material is relatively high. , Don’t worry that the relatively thick cement layer will affect the three-layer structure of the hot surface furnace lining;

2. The mortar layer is located between the furnace ring and the insulation layer. Under normal circumstances, the ambient temperature is very low (<300°C, occasionally when molten metal approaches its surface, the mortar layer will release a small amount of residual moisture, which will reduce the insulation resistance. Provide early warning;

3, using the refractoriness of the clay itself higher than 1800℃, when the molten metal leaks to its surface by accident, the clay can provide a maintenance barrier for the furnace ring, and when an alarm occurs, the clay layer can provide a certain accident processing time

4. For furnaces with bottom ejection type, the cement is made into a tapered shape to avoid the conflict between the furnace lining and the furnace ring, and at the same time, use its strength to fix the furnace ring to avoid the use of the furnace ring. The deformation in the process of furnace construction and demolition prolongs the service life of the furnace ring.

5. The furnace ring and the cement layer are used as the permanent fire lining of the furnace. Although the one-time cost is high and the construction period is long, its service life can be the same as the furnace ring, and partial repairs can also be carried out, thus reducing the overall cost of furnace construction. .

6. Before dry-knotting the furnace lining, first lay a layer of asbestos board and a layer of glass cloth in the furnace ring insulation layer. When laying, in addition to the craftsmanship and compaction of the various layers of materials, the spring ring must be used to tighten up and down and pound. When consolidating the quartz sand, move the coils one by one from top to bottom until the lining is knotted.