Green steel, Eco Longteng

"Environment is people's livelihood, green mountain is beautiful, blue sky is happiness, green mountain is golden silver mountain," the General Secretary's wise teaching for us to depict the "green special steel, ecological Longteng" grand blueprint provides inexhaustible impetus, Longteng special steel, whether it is from the difficult start to the stage of comprehensive development, or from the structural adjustment to the stage of high-quality development of every link, bearing in mind the "environmental protection" mission, is committed to building a "plant and nature in harmony". Longteng Special Steel, whether from the difficult start to the stage of comprehensive development, or from the structural adjustment to the stage of high-quality development of each link, bearing in mind the "environmental protection" of the original mission, is committed to building a "plant and nature in harmony" of the green ecological enterprises.

Green Steel
Ultra-Low Emission
Saving Energy, Reducing Carbon
Circular economy
Ecological factory

GreenSteel

Longteng people are well versed in the essence of sustainable development, and always put environmental protection and production safety in the first place in corporate development, actively explore and innovate, and take the road of extended development, green development, and harmonious development. Longteng Special Steel conscientiously implements the Scientific Outlook on Development, insists on the parallel and coordinated development of economic construction and environmental protection, relies on scientific and technological progress and scientific management, does a good job in environmental management, implements cleaner production, creates ecological enterprises, and vigorously improves the environmental quality of the enterprise and surrounding areas. , protect the health of employees, achieve simultaneous improvement in economic benefits, environmental benefits and social benefits of the enterprise, and promote sustainable development of the enterprise.

Comply with laws and regulations, improve the environment, eliminate pollution, save energy and reduce consumption

Longteng Special Steel has invested 5 billion yuan in environmental protection, energy conservation, ecology and other aspects, allowing Longteng to rely on green construction to achieve high-quality development of the enterprise.

National green factory
Carbon peak leading enterprise
Jiangsu green factory
Jiangsu green development leader

Ultra-Low Emission

The company specially invited the Metallurgical Industry Planning and Research Institute to make a comprehensive plan, implement transformation of organized emissions, unorganized emissions and clean transportation, complete the ultra-low emission transformation of the entire steel process, comprehensively launch the "three wastes" treatment and greening and beautification projects, and strive to win the "three wastes" treatment and greening beautification project. "Blue Sky Defense War" has achieved the goal of "no minerals in use, no materials in transportation, environmental protection and ultra-low emissions, resource recycling, zero wastewater discharge, and low-carbon energy". Industrial wastewater reaches the first-class water quality standard after advanced treatment. Recycle and reuse "zero emissions" to achieve harmonious coexistence between man and nature.

Electric furnace modification

Utilize the capacity replacement policy to build a new large green electric furnace
Adopt advanced processes and equipment to achieve overall green manufacturing, thereby saving energy and reducing carbon emissions
Environmentally friendly design based on national ultra-low emission transformation standards and adopting advanced environmental protection treatment processes

Stacking

The environmentally friendly wharf with a fully enclosed greenhouse is built
The environmentally friendly wharf with a fully enclosed greenhouse is built
Currently, the country’s longest span

Transportation

Pipe belt conveyar with all closed belt corridor
Bulk material transport vehicles with tightly covered
Clean logistics and transportation: There are more than 30 National V vehicles for in-plant transportation, more than 40 National VI vehicles for out-plant transportation, 38 new energy electric heavy trucks, and all non-road mobile machinery meets the National III and above standards.

Desulfurization, denitrification, dust removal

Mist cannon dust suppression
Mobile mist cannon for dust suppression in the factory
Fixed mist cannon for dust suppression

Comprehensive sewage treatment center

The company's production sewage is recycled, treated and reused to achieve zero sewage discharge

Intelligent control

Environmental-friendly intelligent digital control platform

particulates

2713t/a

particulates

2021t/a

25.50%
sulfur dioxide SO2

1809t/a

sulfur dioxide SO2

1229t/a

32.06%
nitrogen oxide

3100t/a

nitrogen oxide

1340t/a

56.77%

Before Ultra Low Emission Retrofit
After ultra-low emission renovation

Saving Energy, Reducing Carbon

Solar energy
Low-carbon technology

Longteng Special Steel has fully implemented photovoltaic power generation projects and actively used the contract energy management model to cooperate with Huaneng. It has completed the construction of the fourth phase of photovoltaic power generation projects, making great use of the company's available rooftop area, increasing the proportion of renewable energy, and achieving the synergistic effect of enterprise pollution reduction and carbon reduction. It has laid a solid foundation for the realization of the company's "dual carbon" goals and comprehensively enhanced the company's green competitiveness.
- 52.89MW
  
  Total installed capacity
- 50+ million kWh
  
  Annual power generation
- 6000+ tons
  
  Standard coal reduction per year
- 3000tons
  
  Carbon reduction per year
- Solar Photovoltaic Power Generation Project Phase II
- Solar Photovoltaic Power Generation Project Phase II
- Solar Photovoltaic Power Generation Project Phase II
- Solar Photovoltaic Power Generation Project Phase II
- Solar Photovoltaic Power Generation Project Phase II
- Solar Photovoltaic Power Generation Project Phase II
The application of blast furnace dehumidification, ring cooler liquid seal, thick layer sintering technology, heating furnace regenerative combustion, heating furnace enhanced radiation energy-saving technology, belt conveyor frequency conversion energy efficiency system, steel industry energy management and control and other national key energy-saving and low-carbon technologies and industry advanced technologies has improved energy efficiency and reduced greenhouse gas emissions.
- Blast furnace blast dehumidification
- Heating furnace enhanced radiation energy saving technology
- Digital and intellegent energy saving

Circular economy

Waste heat power generation

Recovering waste heat from sintering is an important way to reduce energy consumption in the sintering process and improve energy efficiency. The basic principle is: sintered ore is cooled by blowing air on the ring cooler. The cold air blown in from the bottom is heated when passing through the hot sintered ore layer and becomes high-temperature waste gas. In addition, a part of the sintering machine produces sintered ore and extracts high-temperature waste gas from the bottom to the flue. These high-temperature waste gases are introduced into the boiler through the induced draft fan to heat the water in the boiler to generate steam. The steam drives the turbine to rotate and drives the generator to generate electricity.
Surplus gas power generation

The company has built gas power generation using its own surplus coal gas, and has built 50MW high-temperature ultra-high pressure and the world's first 60MW ultra-high temperature subcritical generator sets. While meeting the national dual-carbon policy, it has also saved energy, tapped potential, reduced costs and increased efficiency, ensuring production and increasing benefits for the company.

Ecological factory

Fully implement ultra-low emissions and strive to build a garden factory.

Entrusted with professional design by Nanjing Forestry University, 150 million yuan was invested to build a 427-acre Longteng Ecological Picking Garden, surrounded by orchards, trees, and green shade, integrating "Party Building Center", "Reception Center" and "Employee Activity Center", so that the green area of the factory will be expanded to 41.3%.