January 2022
Shaanxi Iron and Steel Group Longgang Company Ironmaking No. 2 blast furnace started to tap iron
On January 13, Chen Xiao, Secretary of the Party Committee and Chairman of Shaanxi Iron and Steel Group Longgang Company, pressed the one-button automatic ironing button, marking the successful completion of the 67-day annual repair of No. 2 blast furnace and entering a new stage of re-winding and resumption of production. The safety shutdown and maintenance of the No. 2 blast furnace in Ironmaking is that Longsteel Company, in accordance with the overall production and operation work arrangement of Shaanxi Iron and Steel Group, resolutely implements the policy requirements for emergency response to air pollution prevention and control in autumn and winter and the "double limit" policy for production capacity and output, inquires about the pulse of the blast furnace, and reorganizes An important decision to pack and go again. This annual repair has successfully solved many problems such as irregular furnace type, limited technical and economic indicators, high energy consumption, and hidden safety hazards of furnace wall temperature fluctuations, ensuring long-term safe production of blast furnaces, and in order to achieve high-quality, high-yield, and low-consumption blast furnaces. , longevity and clean production have laid a solid foundation.
Zhongtian Iron and Steel Group's high-quality steel cord project started
On January 8, the commencement ceremony of the high-quality steel cord project of Zhongtian Iron and Steel Group was successfully held. It is understood that the planned total investment of the high-quality steel cord project of Zhongtian Iron and Steel Group is 20.2 billion yuan, which is the first major project in Huai'an with an investment of over 20 billion yuan. After the project is fully put into production, it can produce 1.5 million tons of high-quality steel cords annually, helping Huai'an to become an important steel cord production base in the world. At the same time, the high-quality steel cord project of Zhongtian Iron and Steel Group will follow the development concept of "five modernizations, five streams and five bests", with high starting point positioning, high-level planning, and high-standard construction to create a world-leading demonstration of ultra-high-strength high-quality steel cords project.
Jiangsu Delong Nickel builds a new steel project
On January 8, the Long Nord stainless steel pipe project with a total investment of about 5.6 billion yuan started. The Long Nord stainless steel pipe project is jointly invested and constructed by Jiangsu Delong Nickel Industry Co., Ltd. and Jiawang Chenglv Group. The first phase of the project can achieve an annual output of 200,000 tons of stainless steel capillaries, and the annual sales revenue will be about 4 billion yuan after full production. After the completion of the 200,000-ton stainless steel finished pipe project, it will increase sales revenue by 6 billion yuan and realize profits and taxes of 300 million yuan.
Hegang-Posco joint venture project started
On the morning of January 7, the groundbreaking ceremony of the HBIS-Posco joint venture project was held simultaneously in Tangshan, Hebei and Seoul, South Korea by video link. The total investment of the project is 4.125 billion yuan, with HBIS and POSCO each holding 50% of the shares. Two world-leading continuous hot-dip galvanizing production lines will be built in Leting Economic Development Zone, Tangshan, Hebei. An existing auto sheet production line in Guangdong has been incorporated into the company, with an annual designed production capacity of 1.35 million tons. It is planned to be completed and put into operation in 2023. This time, HBIS Group and POSCO (South Korea's Posco Steel Corporation) have joined forces, aiming to become a "world leader in automotive panels" and to build the largest single-scale high-end automotive panel supplier in China.
The No. 3 blast furnace of Desheng Vanadium and Titanium Iron Works was successfully opened
On the morning of January 6, the No. 3 blast furnace of Desheng Vanadium and Titanium Iron Works was successfully opened, marking the successful completion of the whole system maintenance and entering the production stage. The No. 3 blast furnace has been in operation for 11 years since it was opened in 2010, with a cumulative production of 13.02 million tons of qualified molten iron. The overhaul lasted 52 days. Nearly 600 personnel from the branch factory and outsourced units worked day and night to complete the replacement of 266 cooling walls and steel bricks, and 168 copper cooling plates... The main body and the external network water system were all optimized, and the steel structure Reinforcement and three-electrical construction, etc., simultaneously implemented furnace top pressure equalization gas recovery, slag siphon bottom filter, and furnace front dust removal renovation.
Quanzhou Minguang Ironmaking No. 1 blast furnace was ignited and opened
On January 6, Quanzhou Minguang Ironmaking No. 1 blast furnace was ignited, marking the successful completion of the first round of annual maintenance in 2022. The No. 1 blast furnace is now in the late stage of the furnace operation, and the 15-layer cooling stave of the furnace body is damaged and the furnace base gas leaks. On December 22, 2021, the iron smelting plant shut down the No. 1 blast furnace and carried out a half-month intermediate repair work. It mainly completed the replacement and spraying of the 15-layer cooling stave of the furnace body, the treatment of gas leakage at the base of the furnace, and the overall maintenance of the main ditch. Pouring and other auxiliary systems include repairing the high temperature of the hot blast stove body of No. 2 and No. 3 hot blast stoves, and replacing the grid bricks of No. 3 hot blast stoves. There are many maintenance items involved and the maintenance period is long.
Tianzhu Iron and Steel's retreat from the city relocation project sintered Line 1 to ignite
On January 6, the No. 1 sintering machine of the sintering machine project of the Jian'an Construction Bidding Section of Hebei Tianzhu Group Co., Ltd.'s urban steel plant relocation and reconstruction project undertaken by China First Metallurgical Construction Company was successfully ignited. The project is located in Haigang Economic Development Zone, Tangshan City, Hebei Province. It is one of the key projects in Tangshan City to adjust the layout of the steel industry and implement the relocation of iron and steel enterprises to the coast. It is also Tianzhu Group's active response to the national industrial policy, completing product structure adjustment and building a domestic first-class advanced The key project of the integrated steel and coke manufacturing ecological smart park. After the project is put into operation, the annual output of sinter ore will be 6.06 million tons, which will help Tangshan iron and steel sintering system equipment level, environmental protection quality and production capacity to reach a new level.
The No. 1 blast furnace of Chuanwei Group Iron Works was ignited and opened
On January 5th, the firing ceremony of the completion of the middle repair was held on the No. 1 blast furnace casting yard platform of Sichuan Chuanwei Group Iron Works. This time, the new technology of "opening the gate and releasing iron" was successfully implemented in the furnace opening of the oxygen lance. No oxygen blowing pipe was used, which greatly reduced the labor intensity and safety risks before the furnace, and saved the cost of opening the furnace; the furnace was opened with "full coke hot air". In this way, large pieces of coke replace wood to fill the hearth, which not only reduces the cost but also shortens the charging time for opening the furnace. At the same time, it uses the scanning of the material surface in the furnace, the monitoring of the material flow trajectory, the cold air blowing the material column, and the environmental protection method without slag blowing. A number of mature furnace opening technologies have created new miracles such as safe gas connection to the grid 2 hours after ignition, and iron production on the same day.
Dagang relocation and upgrading project started
On January 4, the major projects in Sichuan Province in the first quarter of 2022 were grandly started, and Dagang's relocation and upgrading projects were among them. It is reported that Fangdada Steel’s relocation project is located in Maliu Town, with a planned total investment of 13.2 billion yuan and a construction period from 2021 to 2024. The project plans to produce 2.2 million tons of iron, 2.3 million tons of crude steel, and 2.25 million tons of steel annually. It processes 80,000 tons of vanadium slag annually and produces 3,500 tons of vanadium pentoxide. As a traction project to promote the transformation and upgrading of traditional industries, the project will increase the radiation area and market share of Dagang Group's leading products after completion.
Tangshan Songting Iron and Steel 300 sintering machine successfully resumed production
On the morning of January 3, Tangshan Songting Iron and Steel Sintering Plant 300 sintering machine successfully resumed production. The 300 sintering machine will be overhauled on December 2, 2021, mainly for the air leakage of the sintering machine bellows, the replacement of the igniter door brick, the repair welding of the single-roller cutter head, the corrosion air leakage of the machine head dust collector, the inspection and maintenance of the electrical instrument and equipment, and the aging of the equipment. , serious wear and other problems for centralized maintenance. After 30 days of intensive equipment maintenance and equipment debugging, the current equipment of each process of the 300 sintering machine is running normally, laying a solid foundation for the blast furnace production to provide high-quality sinter in 2022.
The No. 2 blast furnace of Tangshan Delong Iron Works resumed production
On January 1, the No. 2 1080m³ blast furnace of Tangshan Delong Iron Works, which had been in the furnace for 12.5 days, was ignited as planned, and the furnace resumed production smoothly. The whole furnace condition restoration work was carried out according to the plan, and realized 1.3h gas introduction, 3.5h molten iron tap, 21.5h full tuyere opening, 16h full air operation, 12h coal injection, 18h oxygen enrichment, 36h double iron production, and furnace opening. The utilization coefficient of the next day can reach 3.0t/(m³d), achieving rapid production and refreshing the best level of Tangshan Delong’s previous furnaces. At present, the furnace condition of No. 2 blast furnace in the ironworks is stable, and various technical and economic indicators continue to improve.
