The enamel reaction kettle is a composite product made by lining the inner surface of a steel container with glass containing high silica, which is firmly adhered to the metal surface after being burned at a high temperature. Therefore, it has the dual advantages of glass stability and metal strength, and is an excellent corrosion-resistant device. Glass-lined reactors are widely used in chemical, petroleum, pharmaceutical, pesticide, food and other industries, and are ideal reaction vessels for hydrolysis, neutralization, crystallization, mixing, and emulsification.