How to repair the electric furnace lining

The lining of the intermediate frequency furnace will always be damaged due to long-term use. How to repair it at this time? TodayFurnace liningThe manufacturer Luoyang Quantong Kiln Industry Co., Ltd. will take you to understand:

A. Repair of cracking or damage at the joint between the tap hole refractory material and the furnace wall. It can be repaired by pushing and beating with unshaped refractory material, and charcoal should be used for drying when the repair range is large.

B. The repair of side wall cracks is generally, the cracks below 1mm can be used without repairing; the cracks above 1mm, especially in the horizontal direction must be repaired. After adding boric acid and mixing evenly, the furnace building refractories are screened, For a long time, the intermediate frequency furnace is filled with tools such as iron wire. And the filled surface is smoothed with wet mixed sand with water glass added.

C. Repair of sidewall damage or small-scale erosion. Remove slag, and after iron residue, apply water glass. Then use mixed refractory with 5%-6% water glass to pat and repair, or use A1 unshaped refractory to repair. Erosion When the range is slightly larger, put a mannequin to repair.

D. The bottom of the bottom and the inclined part of the side wall are burnt or damaged. The bottom of the repair furnace can be tamped with the same amount of boric acid as the newly built furnace and mixed evenly with the refractory material of the intermediate frequency furnace. The repair of the inclined part of the side wall needs to be installed outside. The diameter is 5060mm smaller than the furnace diameter, and the height is about 100mm higher than the damaged part. Use a vibrator to tamper, and the thickness of each layer is 2030mm. 10mm higher, and then trim the upper plane to a certain slope.

Luoyang Quantong Kiln Industry Co., Ltd. is a comprehensive high-tech company integrating R&D, production, sales and construction services. It is a high-tech enterprise in Henan Province and an IS09001 quality assurance system certification enterprise.