Zhongyi Finance Network reported on May 3 that in recent years, although China's iron and steel enterprises have made great achievements in energy conservation, emission reduction and green development, the total resources, energy consumption, and total emissions are still high. This year, China will carry out special supervision on the implementation of the energy consumption quota and the implementation of ladder-level electricity prices for 185 steel companies. Promoting technological energy saving is one of the important paths for industrial energy  conservation.

 

Recently, the Ministry of Industry and Information Technology issued the "About the issue of the National Major Industrial Special Energy-Saving Supervision Task in 2018". The letter shows that in 2018, the country’s major industrial special energy-saving supervision tasks totaled 5,330, of which 185 were special inspections of iron and steel enterprises’ energy consumption quotas and the implementation of ladder-level electricity prices.

 

As a “two-high” industry, progress in energy conservation and emission reduction in the steel industry has received considerable attention. Director of the Metallurgical Industry Planning Institute and Chairman of the Metallurgical Committee of the China Energy Conservation Association Li Xinchuang introduced that in recent years, China's iron and steel enterprises have made great achievements in energy conservation, emission reduction and green development. The energy consumption and pollutant emissions per ton of steel in iron and steel enterprises With continued decline, the level of energy management has gradually increased, and the level of secondary energy recycling has been continuously improved. With the rapid popularization of high-temperature and ultra-high-pressure units and ultra-high-temperature and ultra-high-pressure units, the level of self-power generation of enterprises has increased year by year. In 2017, the self-generation rate of China's steel industry is close to 50%, and the total annual power generation is approximately 190 billion kwh.

 

At the same time, however, the total energy consumption and emissions of China's iron and steel enterprises remain high, and the problem of insufficient and unbalanced levels of green development among enterprises is still very prominent. The environmental protection and emission reduction pressures faced by the industry are still enormous.

 

In the past two years, China’s iron and steel industry has achieved remarkable results in terms of capacity reduction, and its corporate profits have improved significantly. “The more the company is in a good situation, the more it is necessary to think in peace and consider the long-term, it must pay full attention to the enterprise's energy conservation, environmental protection and green development work.” Li Xinchuang reminded the company that in the field of secondary energy recycling, the steel industry is self-generating. Over the past decade or so, there has been extensive growth, uneconomical operation of its own generating units, and high energy consumption.

 

Promoting technological energy saving is one of the important paths for industrial energy conservation. In order to promote the application of advanced energy-saving experience and excellent energy-saving technologies in metallurgical enterprises, the “Special promotion conference of special optimization technologies for energy-saving innovation of steam turbine cold end” sponsored by the Planning Institute of the Metallurgical Industry and the Energy Saving Professional Committee of the China Energy Conservation Association was recently held in Hebei Province. Handan City held.

 

According to reports, in 2017, Hegang Group's Shaoguan Iron and Steel Co., Ltd. implemented the “thermal optimization technology for cold-junction turbines” (referred to as CES energy-saving technology). The 1#60 MW generator set in Handan Iron and Steel Co., Ltd. increased the average generating power by more than 7%, generating more than 16 million electric power annually. Kilowatt-hours, creating economic benefits of 8 million yuan, saving 5,100 tons of standard coal, carbon dioxide emissions reduction of 13,300 tons. According to Jia Guangru, deputy general manager of Hegang Group's Handan Iron and Steel Company, the next step is to continue to focus on environmental protection and innovation and development, reduce energy consumption, improve efficiency, and continuously enhance the company's overall competitiveness.

 

It is understood that compared with modern large-scale turbine units, there is a large gap in the design, process, and degree of automation of high-energy-consuming industries in service steam turbines, manifested as high heat consumption, extensive operation control, and poor operating economy. The demand for optimization of energy-saving technologies for steam turbines is very prominent.

 

The CES energy-saving technology can reduce the heat consumption of the turbine and the power consumption rate of the cold-end system equipment, realize the intelligent operation control of the turbine cold-end system, improve the power generation efficiency, improve the overall operation level of the iron and steel company's own power plants, and bring significant economic benefits to the company. Benefits and energy-saving emission reduction benefits. Shenzhen Shineng Ketai Energy Technology Co., Ltd. has conducted in-depth research on CES energy-saving technologies and has already possessed a number of invention and utility model patents.

 

According to experts, the total annual electricity consumption of the iron and steel industry is about 400 billion kilowatt-hours. CES energy-saving technologies can be applied in the steel industry. According to the increase in the average power generation by 5%, the annual increase in power generation will be about 8 billion kilowatt-hours, creating an economy. The benefit is about 4 billion yuan.