Henan Jiuye Chemical Equipment Co., Ltd. is a high-tech enterprise and a specialized, refined, characteristic and innovative enterprise with internationally leading products. The multi-effect evaporators produced by the company have reached the international leading level in technology, and have shown their remarkable capabilities in energy saving and consumption reduction of alumina production.

Entering the production workshop of Henan Jiuye Chemical Equipment Co., Ltd., the roaring machines, flying welding sparks, and overhead cranes shuttling back and forth create a bustling scene. Technical workers perform their respective duties on production lines for welding, grinding wheel cutting, assembly, and other processes. Multi-effect evaporators of different specifications and sizes are manufactured here.
It is reported that the multi-effect evaporators developed, designed, and produced by Henan Jiuye Chemical Equipment Co., Ltd. are mainly used in the evaporation section of the alumina production process. From introducing technology from the former Soviet Union in the 1950s to adopting French technology after China's reform and opening-up, these technologies all pale in comparison to the energy-saving performance of Jiuye Chemical's seven-effect two-stage energy-saving evaporation technology in terms of energy saving and consumption reduction.

Ju Lirang, Chairman of Henan Jiuye Chemical Equipment Co., Ltd.: That is, the steam consumption for evaporating one ton of water. Initially, using the technology from the former Soviet Union required approximately 600 to 700 kilograms of steam, while the French technology (from Alteo) needed 320 kilograms for the same amount. When we designed the seven-effect evaporator in 2010, the steam consumption of the first unit was reduced to 220 kilograms, and it further dropped to 150 kilograms in subsequent improvements.

It is reported that Henan Jiuye Chemical Equipment Co., Ltd. is the first enterprise in the world to design and manufacture a seven-effect energy-saving evaporator for alumina production, filling a gap at home and abroad. The seven-effect two-stage energy-saving evaporator is also the evaporator with the largest production capacity and the lowest steam consumption in the world. Its application has reduced the evaporation steam consumption in the alumina evaporation section to one-fourth of the original, and the overall cost per ton has been reduced by more than 60 yuan. For China's current annual alumina production capacity of 100 million tons, the cost savings are no small amount.

Ju Lirang, Chairman of Henan Jiuye Chemical Equipment Co., Ltd.: By reducing costs by billions of yuan, our evaporators have undergone technical appraisal by the China Nonferrous Metals Association. The appraisal results confirm that their technology belongs to the world-leading level. At present, 100% of the newly built alumina plants in China are using seven-effect evaporators.

From a small enterprise initially engaged in pressure vessels, Henan Jiuye Chemical Equipment Co., Ltd. has grown into a high-tech enterprise and a specialized, refined, characteristic and innovative enterprise with internationally leading products. The company has also established the Henan Crystallization and Evaporation Engineering Technology Research Center, strengthened cooperation with scientific research institutes, increased R&D investment, and embarked on an innovation path combining production, education and research.

Ju Lirang, Chairman of Henan Jiuye Chemical Equipment Co., Ltd.: We invest heavily in research and development, accounting for about 3% of our output value. We spare no cost in R&D, and the company has benefited significantly from these investments—R&D has enabled us to grow and thrive. This year, we have launched an eight-effect evaporator, which is also a world-first in the alumina industry. The world's first eight-effect evaporator can further reduce the alumina production cost by 30 yuan per ton compared to the seven-effect evaporator.

"Ten years of sharpening a sword"—to grow into an industry "giant", one must invest hundreds or thousands of times more effort in technological innovation. From the world's first seven-effect energy-saving evaporator to the world's first eight-effect energy-saving evaporator, relying on leading products, Henan Jiuye Chemical Equipment's projects have spread across the globe.

Ju Lirang, Chairman of Henan Jiuye Chemical Equipment Co., Ltd.: Evaporation and concentration are very common in the chemical, food, and paper industries. We will further expand the application of our advanced evaporators to the paper and food sectors. Another major area for expansion is seawater desalination. We will not only remain in the alumina industry but also expand into other industries.

Content reproduced from: Zhengzhou TV Client