Glass-lined industry plans high-quality development path

2023 Enamel Glass Industry Enterprise Association was held in Yangzhong, Jiangsu Province. Experts and business representatives at the meeting said that the demand for glass-lined equipment has continued to improve in the past three years, but with the reduction of new projects, the demand for equipment will gradually shrink, and the high-quality development of glass-lined industry is imperative. The industry should focus on improving product quality, tapping new application areas and intelligent applications. Li Yijun,

former Secretary-General of Industrial Enamel Branch of China Enamel Industry Association, said that in order to develop glass-lined products with high quality, it is necessary to continuously improve product quality and expand the application scope of glass-lined products. "At present, China's glass-lined products are only used in the industrial field. The industry should fully understand the characteristics of glass-lined, such as corrosion resistance, non-stickiness, isolation, insulation and insurance, develop irreplaceable products and explore new application fields, such as brewing, fermentation and storage of beverages and other food processing fields.". There are relevant application cases abroad. Li Yijun said.

"China is a big producer of glass-lined equipment and has a natural geographical advantage, but the industry has not brought this advantage into full play." Li Yijun believes that improvements should be made in five aspects: first, the mixing efficiency needs to be further improved, and the principle of the mixer should be studied in depth to improve the efficiency for customers according to different application scenarios; second, the heat transfer performance of glass-lined equipment should be improved to effectively increase the heat transfer coefficient and heat transfer coefficient of the equipment; Third, the thermometry of the equipment lags behind, so the thermometry should be made quickly to make the thermometer directly contact with the material; fourth, the ceramic layer is resistant to temperature difference, so the structure should be optimized and the manufacturing process should be improved; fifth, the extension of the crack of the glass lining should be paid attention to, and the protection of the ceramic surface should be strengthened.

Talking about the manufacturing process of glass lining, Zhu Xiaohe, general manager of Jiangsu Yangyang Chemical Equipment Co., Ltd., believes that intellectualization is the key factor to improve product quality, enhance the comprehensive strength of enterprises and enhance market competitiveness. "Nowadays, the supply of glass-lined equipment exceeds demand, and the more difficult the market is, the better the quality is." Zhu Xiaohe said.

Some delegates at the meeting said that in order to improve the overall quality of glass-lined products, the industry needs to start with the selection of materials, strictly control the selection of glass-lined plates and glazes, and strive for excellence in enamel firing process, spraying process, temperature control and other aspects, so as to give full play to the spirit of craftsmen and improve the level of intelligent manufacturing.

"Through practice, we really feel the benefits of intelligent manufacturing." Zhu Xiaohe said that in recent years, the company has gradually upgraded from manual operation to automatic machine welding, especially in the welding of large-sized equipment, the superiority of robots has become more prominent.

Zhu Xiaohe introduced: "In terms of head pressing, we purchased an automatic lifting intelligent press in 2017, which not only improves the efficiency of head pressing, but also improves the accuracy of products; in terms of tank opening, we use robots to automatically open the tank, which greatly improves the efficiency of operation;"; In the aspect of automatic welding, the machine welding mode not only reduces the number of employees, but also improves the welding accuracy. In addition, the introduction of equipment and technology such as plasma cutting machine, robotic nozzle welding, glass-lined automatic duster, combined intelligent temperature control system and intelligent polishing technology has greatly improved the production efficiency. Delegates at the meeting put forward suggestions

on the selection of glass-lined equipment plates, porcelain glazes and supporting products. Zhang Dajing, general manager of Hebei Dajing Dazhao Chemical Equipment Company, believes that the glass-lined special steel plate has good performance, excellent anti-scaling performance and anti-porosity performance, and the industry should give priority to this kind of plate. Wang Jiexiong, general manager of Shanghai Langmo Mechanical and Electrical Technology Co., Ltd., said that in the process of enameling glass-lined equipment, the key to enameling is to keep the temperature of the upper and lower parts of the workpiece uniform. In the selection of porcelain glaze, the acid and alkali resistance and temperature resistance of porcelain glaze should be taken into account.

PTFE products are supporting products of glass-lined equipment. Yin Libo, chairman of Jiangsu New Teflon Plastic Co., Ltd., said: "PTFE has super heat resistance, incombustibility, weather resistance, chemical resistance and adhesion resistance.". PTFE products are the best choice for glass lining.