How to repair the lining of the intermediate frequency furnace?

How to repair the lining of the intermediate frequency furnace?

Luoyang Quantong Kiln Industry Co., Ltd. will answer for you:

1. For the repair of cracks or damage at the joint between the tap hole refractory material and the furnace wall, it can be repaired by pushing and beating with the unshaped refractory material. When the repair limit is small, it should be soaked with firewood, etc.;

2. For the repair of cracks on the side wall of the box-type electric furnace, generally, the cracks below 1 mm can be used continuously without repairing; above 1 mm, the cracks with similar degree of deviation must be repaired. It can be added with boric acid and mixed with the average value. After the refractory material for building the furnace is sieved, it is vacated with iron wire and other tools. After the vacancy, the wet state mixed with water glass is mixed with sand and smoothed.

3. To repair damage to the side wall of the box-type electric furnace or to repair a small area of ​​rust, after cleaning the slag and iron residue, apply water glass. Then use the refractory material mixed with 5%-6% water glass to repair it, or use A1 ,0 Unshaped refractory material repair. When the rust area is slightly larger, it is put into the model for repair.

4. For the repair of the burning damage or damage of the bent part of the bottom and side walls, the repair of the bottom of the electric furnace can be tamped with the refractory material of the box-type electric furnace that participates in the same amount of boric acid as the newly built furnace and is mixed with the average value. For repair, it is necessary to install a mold whose outer diameter is 5060 mm smaller than the furnace diameter, and the height is about 100 mm higher than that of the killing part. Use a vibrator for tamping, the thickness of each layer is 2030 mm, and the thickness of each layer is 2030 mm. The first floor, after that, it is 10 mm higher than the model, and then the upper plane is modified to a certain slope.