Pellet: Inner Mongolia XT Project

Inner Mongolia XT Iron Alloy Co., Ltd. operates a chain return global rotary kiln with a production capacity of 60wt/a. The kiln size is 4×30m and mineral furnace gas is used as fuel.

In the current environment of stricter environmental protection policies, reducing NOx emissions has become a key issue for enterprises to solve urgently. Although the rotary kiln maintains daily operation, the NOx emission data is about 220mg/m³, and there is still a large room for decline compared with increasingly stringent environmental standards.

The company expects to effectively reduce NOx emissions through the technical transformation of the burner to meet the environmental requirements and enhance the green competitiveness of the company.

The Zhonghe M&E technical team conducted in-depth research on the process characteristics of the rotary kiln, fuel characteristics and the operation of the existing combustion system. Based on more than 20 years of professional experience in the field of industrial kiln combustion system, we customized a special burner technical reform program for it: focusing on optimizing the combustion structure, adjusting the combustion parameters and improving the mixing mode of air and fuel in the combustion process, and strive to achieve the dual goals of efficient combustion and low NOx emission.

1. Flame shape optimization: After the technical modification, the flame generated by the burner is slender and regular in shape, and the flame length is extended by 2-3m compared with the original. This is not only conducive to more uniform heat transfer, but also makes the temperature field distribution in the kiln more balanced, avoiding the appearance of local high temperature peaks, and providing a strong guarantee for the stability of product quality.

2. Significant emission reduction of NOx: The most critical thing is that NOx emissions have been successfully reduced from about 220mg/m³ before technical transformation to an average of 170mg/m³, a reduction of up to 20%.

This achievement makes the enterprise successfully meet the environmental protection requirements, but also provides valuable practical experience for other enterprises in the industry to reduce emissions. For the specific practical problems of enterprises, with professional technology and rich experience in the field of industrial kiln combustion system, we customize and implement effective solutions to provide strong support for more industries in coping with environmental challenges and improving production efficiency!