Enamel equipment has excellent properties such as acid resistance, alkali resistance, impact resistance, and temperature variation resistance. It is widely used in the chemical, pharmaceutical, and light industry sectors. For many years, industrial enamel equipment has mainly consisted of reactors and storage tanks. In the last decade, with the development of the enamel industry, the structure of enamel products has undergone some changes, leading to the emergence of enamel tube heat exchangers, enamel thin-film evaporators, and filters. Due to enamel equipment often being subjected to high temperatures, high pressures, and corrosive media, as well as experiencing rapid cooling and heating during operation, enamel reactors (http://51tbl.com) are prone to enamel spalling. After enamel spalling occurs, the metal substrate is exposed and corroded by the corrosive medium. In many large chemical enterprises, production is continuous, and large reactors are employed. If enamel spalling occurs in one reactor, even if the area is very small, it can affect the product quality and normal production of the entire factory. Therefore, the issue of repairing enamel equipment, including pulverizing equipment (http://chinasre.com), has drawn widespread attention.