The working temperature of the enamel kettle has a great influence on the use of the enamel kettle. The enamel reactor was fired at a high temperature of 900 ° C. After cooling, the enamel was bonded to the steel plate. Because the linear expansion coefficient and elongation of the enamel are smaller than the steel plate, the deformation of the glass-lined glass after cooling is smaller than the deformation of the steel plate, and the enamel is constrained by the steel plate to generate compressive stress. After the enamel kettle is made, its glass-lined pre-stress is present, while the steel plate is pre-tensioned.
If the stress caused by the enamel exceeds its use stress due to the large temperature change, the enamel will be destroyed. Therefore, the enamel layer of the enamel kettle is extremely explosive when exposed to cold and heat. Therefore, the enamel kettle has a temperature resistance of 200 ° C, a temperature resistance to rapid cooling shocks <1IO ~ C, and thermal shocks <120 ° C. The temperature difference between the temperature of the material and the temperature of the kettle when feeding is too large, the steam is too fierce when heating up, and the temperature is too rapid can also cause porcelain explosion.
Therefore, in order to ensure the performance of the equipment, effective measures should be taken during the transportation, storage and installation. Only the ears of the tank are allowed to be stressed during transportation (referring to non-packaging), rolling and crowbars are not allowed to avoid vibration and collision, and it is strictly forbidden to take over stress on vulnerable parts such as pipe collars and clips. Under conditions, the equipment is best stored indoors. When the device is stored outdoors, it should be covered to avoid being knocked by objects or exposed to sunlight and rain.
When storing in winter, special attention should be paid to check whether the tank body and the thermometer casing are stagnant to avoid damage due to freezing. For reaction tanks or polymerization kettles equipped with mechanical seals, the sealed parts should be protected and kept clean.