In recent years, Tai'an Zhonglian Cement Co., Ltd. has deeply practiced the concept of green environmental protection, integrated green development into the whole production process, vigorously implemented energy-saving technological transformation, strengthened the construction of energy management system, and led the cement industry to upgrade.
As the pioneer of intelligent manufacturing in the world cement industry, the "DreamWorks" built by Tai'an Zhonglian is not only a breakthrough in the transformation and upgrading of China's cement industry, but also a collective dream of "intelligent manufacturing" in the world cement industry.
Entering Tai'an Zhonglian Cement Co., Ltd., large-scale machinery and equipment and flowers and seedlings reflect each other, conveying the "green breath" of enterprise development everywhere. In the central control room, the main links of cement production are presented on the intelligent monitoring screen in real time. Through manual monitoring in the background, the pollutant emission index in the production link is clear at a glance. Liu Shenglin, Director of Production Technology Department of
Tai'an Zhonglian Cement Co., Ltd.:
"The main process of cement production is' two mills and one burning ', that is, raw material mill, cement mill and clinker burning.". Through the intelligent monitoring platform, we can grasp the emission of dust particles, sulfur dioxide, nitrogen oxides and other pollutants produced in the process of "two grinding and one burning" at any time, accurately control the emission of pollution in the lowest state.
Outside, a 108-meter-high six-stage preheater stands in the factory area. Compared with the traditional five-stage preheater, the six-stage preheater increases the number of preheating stages, so that the raw meal can exchange heat with the high-temperature gas more fully before entering the rotary kiln, thereby improving the preheating temperature and thermal efficiency of the raw meal, not only reducing the energy consumption of the rotary kiln, but also improving the output and quality of the cement clinker. Lin Daotong, deputy chief engineer of
Tai'an Zhonglian Cement Co., Ltd., said
, "We have the first six-stage preheater in China, which can realize full heat exchange of materials and reduce coal consumption. Compared with the standard coal consumption per ton of clinker in ordinary production lines, it is 6 kg less, so it has great advantages in energy saving and consumption reduction.". At the same time, our SCR project is also under construction, which can reduce the use of 2 kg of ammonia per ton of clinker and achieve ultra-low emissions of nitrogen oxides. As a high heat consumption enterprise,
cement production enterprises need to consume a large amount of heat energy in the production process. With the advantage of high comprehensive energy utilization rate of six-stage preheater, Taian Zhonglian Cement Co., Ltd. has realized "waste consumption and waste utilization", reduced production costs and improved environmental protection benefits.
Tai'an Zhonglian Cement Co., Ltd. Engineer Li Jian:
"Relying on the high temperature calcination of the preheater, we can recycle and incinerate the waste combustible materials such as waste textiles and crop straws produced in the surrounding areas. In this way, the amount of hazardous waste co-disposal can reach 100,000 tons per year, and the carbon dioxide emissions can be reduced by 66,000 tons per year."
At present, Tai'an Zhonglian Cement Co., Ltd. is focusing on intelligent upgrading and digital factory construction, accelerating green transformation, extending upstream and downstream industrial chains, continuously increasing investment in environmental protection and technological transformation, seeking benefits from energy saving and emission reduction, and promoting green development of enterprises.
