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The 13th China Innovation and Entrepreneurship Competition (Tianjin Division)

15 Jan,2025

The 13th China Innovation and Entrepreneurship Competition (Tianjin Division)

09 Apr,2024

CCTV's "Rising National Brand" Topic Selection Activity

The special program topic selection activity of "rising national brand" was held in the park of Zhejiang radio and television group international film and television center. It is understood that the "Rising National Brand" special program launched by the "Credit China" column of the Central New Film Old Story Channel will be broadcast on the CCTV New Film Old Story Channel in the near future. In the form of interviews with entrepreneurs by well-known CCTV hosts, together with location short films, AR ring screen visual display and other means, this paper narrates the true stories of Chinese enterprises in the current market environment, showing the spirit of national brands and their operators who are not afraid of difficulties, stick to honesty and perseverance, and explore the innovation and breakthrough paths of Chinese enterprises under the influence of the epidemic......

Good news! Competition into the finals

09 Apr,2024

Good news! Competition into the finals

Recently, Tianjin Zhefeng Environmental Protection Technology Co., Ltd. participated in the preliminary review of the 4th Tianjin University "Haitang Cup" Alumni Innovation and Entrepreneurship Competition, and stood out among many participating projects and entered the finals. The "Short Process Steelmaking Technology Jet Technology Promotion" program of Zhefeng Environmental Protection Technology Company has been affirmed and supported by the organizers.

Tianjin Innovation and Entrepreneurship Competition

09 Apr,2024

Tianjin Innovation and Entrepreneurship Competition

On August 14, 2022, the "2022 Tianjin Innovation and Entrepreneurship Competition-and the 11th China Innovation and Entrepreneurship Competition" jointly organized by Tianjin Science and Technology Innovation Development Center, Tianjin Science and Technology Innovation Development Center, Tianjin Jinnan District Science and Technology Bureau and other units The final of the Entrepreneurship Competition (Tianjin Division) was held on Haitang Street, Haihe Education Park, Jinnan District, Tianjin. Li Guofeng, general manager of the company, was invited to participate.

Cluster oxygen lance comes out

09 Apr,2024

Cluster oxygen lance comes out

In recent years, electric arc furnace steelmaking technology has developed rapidly at home and abroad. Around the expansion of production capacity, reduce consumption indicators, reduce production costs, many steel-making auxiliary technology came into being. Among them, the oxygen cluster jet technology plays a very important role in improving the rhythm of electric furnace smelting and reducing production costs.

Principle of cluster jet

09 Apr,2024

Principle of cluster jet

The principle of the cluster jet oxygen lance is to add a burner around the Laval nozzle, so that the oxygen jet of the Laval nozzle is surrounded by high temperature and low density medium, reducing the influence of various airflow in the electric furnace on the central oxygen jet, thus slowing down the attenuation of the velocity of the oxygen jet, maintaining the initial diameter and velocity of the oxygen jet in a long distance, and providing a long-distance supersonic polymerization jet to the molten bath [8].

Cluster oxygen lance structure

09 Apr,2024

Cluster oxygen lance structure

According to the working principle of the cluster jet oxygen lance, it is a part of epoxy in the main oxygen of the traditional oxygen lance. In addition, two rings of protective gas (epoxy and ring gas) are added to the outer ring of the main oxygen to make it fully burn and isolate the influence of the external air flow to protect the main oxygen.

Warmly celebrate the baking bag project to achieve 60%-75% cost reduction for customers

11 Aug,2023

Warmly celebrate the baking bag project to achieve 60%-75% cost reduction for customers

On August 11, 2023, Tianjin Zhefeng Environmental Protection Technology Co., Ltd. successfully completed the renovation project of a steel plant in Xinwuan City, Hebei Province. This renovation makes full use of the existing equipment (boom) of the steel plant and combines the actual situation on site to carry out the renovation, thus reducing the material cost of the steel plant and saving energy consumption for the enterprise at the same time. The reformed medium package is a seven-machine seven-hole medium package with an overall length of 8 meters. The medium package is made of magnesium. The baking temperature needs to be> 800 ℃ before use, A total of 7 burners on the baking bag have achieved the expected goal through renovation.

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E-mail: liguofeng@2mahe.com

Address: Floor 1, Workshop 2, and Floor 1, Workshop 2, No.2, Zhongping Road, Jinnan Economic Development Zone (East District), Jinnan District, Tianjin

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