The necessity of furnace frame spraying is mainly reflected in the following aspects:
1. **Anti-corrosion protection**: The furnace frame is in a high temperature and corrosive environment for a long time. Spraying can provide an additional protective layer to prevent corrosion and oxidation of the metal structure and extend its service life.
2. **Improved wear resistance**: The furnace frame may be worn during operation. Wear-resistant spraying materials can enhance the wear resistance of the furnace frame surface and reduce the damage to the structure caused by wear.
3. **Easy maintenance**: The use of spraying materials can reduce the difficulty and cost of daily maintenance to a certain extent, because the coating can slow down the speed of corrosion and wear.
4. **Improved safety**: As a supporting structure, the integrity of the furnace frame is directly related to the safe operation of the entire furnace body. Preventing structural damage by spraying can improve overall safety.
5. **Monitoring technology coordination**: Since monitoring methods such as low-frequency electromagnetic technology need to be carried out under conditions without magnetic interference, the use of non-magnetic wear-resistant spraying materials can avoid interference and ensure the accuracy of monitoring results.
In summary, furnace frame spraying is an important means to ensure its long-term stable operation. It is necessary in many aspects such as corrosion resistance, wear resistance, easy maintenance, improved safety, and coordination with monitoring technology.