Qi Yanyong: Energy Efficiency Judgment and Operation Control Optimization Strategy of Firing System

2023-11-29 17:42:35

Qi Yanyong, an associate professor of Southwest University of Science and Technology, made a keynote report on "Energy Efficiency Determination and Operation Control Optimization Strategy of Firing System".

On November 29, the Fifth China Cement Intelligent Summit Forum, sponsored by China Cement Network, was held in Hangzhou, Zhejiang Province. Qi Yanyong, an associate professor of

Southwest University of Science and Technology, made a keynote report on "Energy Efficiency Determination and Operation Control Optimization Strategy of Firing System". He introduced in detail the energy efficiency judgment and operation control optimization strategy of the firing system from four aspects: production status, kiln calcination capacity judgment, grate cooler analysis, and intelligent control core-pulverized coal combustion in the kiln.

He pointed out that the main factor affecting the heat exchange efficiency of grate cooler is "wind short circuit", and he analyzed the causes of "wind short circuit"-material layer distribution and fixed end wind. Judgment basis of "wind short circuit"-correlation coefficient between fan current and pressure.

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Qi Yanyong, an associate professor of Southwest University of Science and Technology, made a keynote report on "Energy Efficiency Determination and Operation Control Optimization Strategy of Firing System".

2023-11-29 17:42:35

As a result of the war, Ukraine's cement industry has fallen from its peak and is looking for exports to survive. In 2021, the output was 11 million tons, which dropped sharply to 5.4 million tons in 2022, and then slowly climbed to 8 million tons in 2025, but there is still a gap. The structure of demand has changed, infrastructure and defense projects have become big buyers in the short term, and domestic consumption has shown signs of weakness. Excess capacity is balanced by exports, and the proportion of export volume will rise to 21% in 2024. With the increase of market concentration and the monopoly of production capacity by several large kilns, CRH is expected to bring capital and enhance competitiveness to the industry if the acquisition is successful.