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Air energy solutions for cement industry

As one of the high energy consumption industries, the cement industry has been upgraded by the central government. Conch Cement, a leading cement enterprise, actively responded to the national call for energy conservation, aiming to replace the original 14 high-energy Roots blowers.

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1.57

million yuan

Save energy

Power saving rate

Industry information

The entire production process of cement can be summarized as "two grinding and one burning", as follows

Mining

To mine and break up materials such as limestone and iron ore, and then initially mixed evenly.

Raw material mixing

Generally speaking, cement powder accounts for only about 40%, and other raw materials account for about 60%,According to the proportion of product requirements, grinding and blending into suitable ingredients, uniform quality of raw materials.

Preheating material

Break down some of the chemical components that are needed, and discard the unwanted components.

Calcined clinker

The decomposed raw materials are burned in the kiln, burned into a liquid state, and after high temperature calcination, a series of physical and chemical changes occur and finally form Portland cement clinker with calcium silicate as the main component.

Finished products leave the factory

Dry the liquid cement first, aAdd appropriate amount of gypsum, mixed materials together ground into powder cement, packaging or bulk can be finished.

process flow diagram

Pain point background

In the cement industry process, powder transport, Malz kiln gas supply, desulfurization and denitrification and other links are inseparable from the blower.

Pain Point 1

The high energy consumption of Roots blower is urgently needed to reduce cost and increase efficiency

Solution

After the investigation and analysis of the project engineer, the contract energy management scheme was provided: 8 Xinlei maglev blowers replaced the original 14 Roots blowers. With the support of technologies such as permanent magnet high-speed host and aviation aluminum three-way flow impeller, the motor efficiency exceeds 96%, the energy saving rate exceeds 30%, and the cost reduction and efficiency increase accelerate the green transformation.