The reporter recently learned from the Tianjin Port Free Trade Zone enterprise Xintiangang Decai Technology Group that the group's cold-rolled plate industry company located in the Dagang Economic and Technological Development Zone has continuously accelerated the low-carbon green transformation and promoted high-quality and efficient development. In 2021, photovoltaic power generation reached 9.556 million kWh, saving 2.13 million yuan in electricity bills。
"The company also transformed the compressed air system, eliminated the old boiler and the new heat source machine, eliminated the backward mechanical and electrical equipment, and reduced the energy consumption cost by more than 3 million yuan." Through the installation of waste heat recovery device, all the waste flue gas waste heat generated by the galvanizing production line is recovered, generating 40.67 million tons of steam and saving more than 800,000 yuan in purchased steam costs. The relevant person in charge of the enterprise said that while implementing the transformation of energy-saving technology, it is also actively developing the circular economy. Vigorously promote the optimization of process technology, reduce resource consumption and improve resource output rate. Due to the long distance between the winding machine and the roll in the rolling mill process, the tail wind is too large, the finishing rate is low, and the scrap is generated, and the finishing rate is increased by 3% through the implementation of the two-end welding belt scheme. The use of hydrochloric acid recycling technology to recycle waste acid after treatment, to achieve no waste acid emissions, reduce the consumption of hydrochloric acid. For the recycling and recycling of industrial wastewater, the company's new water consumption and water reuse rate per ton of steel in 2021 were 0.51 cubic meters and 97.7%, respectively, reaching the industry-leading level.
In addition, the reporter also learned that the company actively develops low-carbon green products. Aiming at market demand, focusing on the key steel materials supporting the development of advanced manufacturing, we have deeply implemented the innovation-driven development strategy, developed and produced low-carbon, green and high value-added products - zinc, aluminum and magnesium products, and filled the market gap of this product in Tianjin. Once the product was launched, it was favored by customers, orders climbed month by month, last year a total of nearly 100,000 tons of zinc aluminum and magnesium products were produced, and some products were exported to Japan and South Korea, creating an output value of nearly 600 million yuan. It is reported that the corrosion resistance of zinc aluminum magnesium steel plate is 10-20 times that of ordinary galvanized plate, and the service life of components made of steel plate exceeds 30 years. Because of its super corrosion resistance and good processing, welding and coating performance, it is widely used in civil construction, photovoltaic supports, agricultural livestock products, power communications, railway roads, automotive motors, industrial refrigeration and other industries, and the use of the field is very extensive, becoming the "new favorite" of the market. Due to its strong product research and development capabilities, in 2021, the cold-rolled plate industry company was rated as a "specialized and special new" seed enterprise in Tianjin. In the future, the cold-rolled plate company will unswervingly implement the new development concept, implement green planning, green design, green investment, green construction, green production, green circulation, green life, and green consumption in the whole process in an all-round way, so that the development is based on the efficient use of resources, strict protection of the ecological environment, and effective control of greenhouse gas emissions, further promote high-quality development and high-level protection, build a green and low-carbon circular development enterprise, help achieve the goal of "carbon peaking, carbon neutrality", and contribute to the green development of Binhai New Area.