Every day, I am constantly moving around the workshop, deeply experiencing the changes brought about by the enterprise's transformation and upgrading: Based on 5G + industrial internet projects, the start and stop of most equipment can be achieved through a single button operation, 90% of valve operations and other links have realized intelligent control, and the inspection work basically does not require manual intervention. "The working environment of the employees has been greatly improved."

The more significant change lies in the substantial improvement of the manufacturing process and the considerable reduction in energy consumption and pollution emissions.

In 2011, the production process of the factory, which had been in operation for half a century, was all based on outdated technologies, and the labor costs were extremely high. "Just for the hydrogen sulfide removal process, the alkaline liquid desulfurization method used is unstable. The production process requires 3 to 5 workers. Not only is the labor intensity high, but it also generates a large amount of waste." "Now, we adopt the wet acid production method. The automated production line only requires one person to complete the task."

While reducing artificially, the industrial chain of the enterprise has further upgraded. It has shifted from traditional coal chemical industry and phosphate fertilizers to fine petrochemicals and phosphorus chemicals. When a graduate from university started working at San Ning, the company was still a nitrogen fertilizer enterprise that produced synthetic ammonia and ammonium carbonate. Now the enterprise has 32 categories and 68 types of main products, which are coupled and symbiotic, achieving "efficient production". Last year, the proportion of circular economy in the company's output accounted for 36%. "For example, by adopting the multi-nozzle water coal slurry fluidized bed gasification technology, the single furnace production capacity is large, the effective gas content is high. Although the investment is greater than that of the fixed bed, the carbon conversion rate is high, the liquid slag is discharged, no tar, naphthalene and phenol wastewater are produced, the wastewater treatment is relatively easy, achieving a fundamental transformation of the gasification device into an ecological device, promoting the company's industrial transformation and upgrading, and embodying green development." When talking about the new technologies nowadays, he spoke without stopping.

Over the past five years, the factory has moved further away from the Yangtze River and closer to his home. "I feel very guilty that I couldn't be there to accompany my wife during her pregnancy and when she gave birth. Now I can come home every day and grow up with my children together." Nowadays, what he enjoys most is taking walks by the river with his family and seeing how the Yangtze River's ecology is getting better and better. He is truly happy about it.