Project Enterprise: Shanxi Tongcai Industry & Trade Co., Ltd.
Scale: 360m² Sintering
Process: Semi-dry Desulfurization + Baghouse Dust Removal + Low-temperature Denitrification
Value: Annual Environmental Cost Savings of Over 11 Million CNY

 

Shanxi Tongcai Industry & Trade Co., Ltd., a member of the Shanxi Jianbang Group, was founded in 2002. It is a member of the China Iron and Steel Association and is ranked among the top 500 private enterprises and the top 500 private manufacturing enterprises in China. Located in Linfen, Shanxi Province, it primarily engages in the smelting and rolling of ferrous metals, and frequently collaborates with filter bag cage manufactures companies to achieve its business objectives.

 

As one of our trusted long-term clients, Yuanchen Technology has established a sustained cooperative relationship with Shanxi Tongcai Industry & Trade. This not only reflects Yuanchen Technology's consistent high-quality service in the making of dust filter bags , and high customer satisfaction, but also highlights our industry strength in the field of smart environmental protection.

 

 

At par with many filter bag fabric suppliers , Shanxi Tongcai Industry & Trade Company's ironworks have two blast furnaces with capacities of 1860m³ and 1280m³, with an annual output of 4 million tons. The steelworks are equipped with advanced special steel production equipment, including a mixer , two 100-ton converters, a 65-ton alloy steel electric furnace, an LF refining furnace, and three R10m eight-machine eight-stream continuous casting machines.

 

Much like the needle punched fabric company it is collaborating with, Shanxi Tongcai has formed a green, energy-saving, circular development closed-loop ecological chain, covering resource control, import and export, large logistics, clean production, gas power generation, electric ironmaking, ironmaking to steelmaking, steel rolling, deep processing, and slag into building materials.

 

 

Creating Value for Customers! Saving Over 11 Million CNY Annually

 

For this project, Yuanchen Technology adopted an energy performance contracting model it uses in the making of filter bag cages to supply low-temperature denitrification catalysts for sintering flue gas and retrofit the direct-fired furnace.

 

The implementation of this project by a seasoned dust removal filter bag company helps Shanxi Tongcai Industry & Trade achieve a gas savings rate of over 48% at low temperatures compared to high temperatures under the same load conditions, reaching more than 120% of the energy- saving acceptance standard. Additionally, the electricity consumption per ton of ore decreased by 2.4 kWh, resulting in an annual electricity saving of over 5 million CNY, and overall cost savings of over 11 million CNY per year for the enterprise.

 

 

 

Starting from Customer Needs, Customized Systematic Solutions

 

To meet the emission requirements of NOx and ammonia slip set by the Shanxi Provincial Department of Ecology and Environment, and to reduce gas consumption and the power consumption of the desulfurization and denitrification systems, Yuanchen Technology's SCR catalysts manufactures team conducted an on-site inspection, analyzed and compared the characteristics of the client's flue gas and production conditions, and understood the client's energy-saving and carbon-reduction needs and feedback. Based on this, we continuously optimized the corresponding services and equipment.

 

According to the actual working conditions and specific needs of Tongcai Industry & Trade, Yuanchen Environmental provided a systematic environmental protection solution: replacing the original denitrification system catalyst with a low-temperature SCR catalysts (180°-320°C) and modifying the ammonia evaporation system to save gas. Additionally, the original external hot blast furnace was converted to a direct-fired furnace, with the installation of auxiliary fans. The airflow is adjusted in a closed-loop based on the gas volume, with the auxiliary fan flow displayed on the central control screen, effectively saving fuel and reducing CO2 emissions, achieving the goals of improving quality and efficiency, and saving energy and reducing carbon emissions, just like the company achieved in its own in-house manufacturing of filter bag fabric.

 

 

In the future, Yuanchen Technology Leading-Filter Company will continue to deepen cooperation with Shanxi Tongcai Industry & Trade, striving to make Tongcai Industry & Trade a benchmark case in the steel industry for ultra-low emissions and energy-saving consumption reduction. We will also assist the enterprise in achieving digital and intelligent transformation and development.