ASME pressure vessels are widely used in the fields of petroleum, chemicals, rubber, pesticides, dyes, medicine and food. They are pressure vessels used to complete vulcanization, nitration, hydrogenation, hydrocarbonization, polymerization, condensation and other processes. Its structure generally consists of a kettle body, a transmission device, a stirring device, a heating device, a cooling device, a sealing device, a support, etc. Agitators include anchor type, frame type, paddle type, turbine type, scraper type, and combined type. Heating and cooling can use jackets, half pipes, coils, honeycomb panels and other structures. Heating methods include: steam, electric heating, and thermal oil. Supports include leg-type, ear-type and support-type supports to meet the process needs of different working environments such as acid resistance, high temperature resistance, wear resistance and corrosion resistance.