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A platform for research: civil engineering, architecture and urbanism
Energy-saving cement clinker and preparation method thereof
The invention discloses an energy-saving cement clinker which is prepared by mixing and grinding coal slime, limestone, clay, fly ash and iron tailings to prepare semi-black raw material powder and calcining the semi-black raw material powder, and a preparation method of the energy-saving cement clinker comprises the following steps: step 1, mixing and grinding the raw materials to obtain semi-black raw powder, step 2, carrying out preheating reaction on the semi-black raw powder to obtain preheated coal, 3, calcining the preheated coal in a rotary kiln to obtain cement clinker; the coal slime is doped into cement raw material ingredients, so that the burnability of the raw materials is improved, the calorific value of the blended coal is stabilized, the coal consumption of a sintering system is reduced, meanwhile, the coal slime is rich in iron components, doping of iron making materials can be saved, a liquid phase reaction is carried out in advance during clinker sintering, the sintering coal consumption is further reduced, coal resources are saved, and the purpose of reducing cost is achieved. The coal slime influencing the environment is utilized, and the ecological environment can be improved.
本发明公开一种节能型水泥熟料，由煤泥、石灰石、黏土、粉煤灰和铁尾矿混合磨粉制得半黑生料粉并经煅烧制成，制备方法包括步骤一、原料混合粉磨处理得到半黑生粉料，步骤二、半黑生粉料的预热反应得到预热煤料，步骤三、预热煤料回转窑煅烧制得水泥熟料；本发明通过在水泥生料配料中掺入煤泥，改善了生料的易烧性、稳定配煤热值，降低烧成系统煤耗，同时利用煤泥富含较高的铁成分，可节约制铁材料的掺入，熟料烧成提前液相反应，进一步降低烧成煤耗，节约煤资源，达到降本的目的，将影响环境的煤泥加以利用，又可改善生态环境。
Energy-saving cement clinker and preparation method thereof
The invention discloses an energy-saving cement clinker which is prepared by mixing and grinding coal slime, limestone, clay, fly ash and iron tailings to prepare semi-black raw material powder and calcining the semi-black raw material powder, and a preparation method of the energy-saving cement clinker comprises the following steps: step 1, mixing and grinding the raw materials to obtain semi-black raw powder, step 2, carrying out preheating reaction on the semi-black raw powder to obtain preheated coal, 3, calcining the preheated coal in a rotary kiln to obtain cement clinker; the coal slime is doped into cement raw material ingredients, so that the burnability of the raw materials is improved, the calorific value of the blended coal is stabilized, the coal consumption of a sintering system is reduced, meanwhile, the coal slime is rich in iron components, doping of iron making materials can be saved, a liquid phase reaction is carried out in advance during clinker sintering, the sintering coal consumption is further reduced, coal resources are saved, and the purpose of reducing cost is achieved. The coal slime influencing the environment is utilized, and the ecological environment can be improved.
本发明公开一种节能型水泥熟料，由煤泥、石灰石、黏土、粉煤灰和铁尾矿混合磨粉制得半黑生料粉并经煅烧制成，制备方法包括步骤一、原料混合粉磨处理得到半黑生粉料，步骤二、半黑生粉料的预热反应得到预热煤料，步骤三、预热煤料回转窑煅烧制得水泥熟料；本发明通过在水泥生料配料中掺入煤泥，改善了生料的易烧性、稳定配煤热值，降低烧成系统煤耗，同时利用煤泥富含较高的铁成分，可节约制铁材料的掺入，熟料烧成提前液相反应，进一步降低烧成煤耗，节约煤资源，达到降本的目的，将影响环境的煤泥加以利用，又可改善生态环境。
Energy-saving cement clinker and preparation method thereof
一种节能型水泥熟料及制备方法
LIU XIAOJUN (author) / LU CHUANSHENG (author) / JIANG DONGYU (author) / SHI HAIJI (author) / DU GUANGHONG (author) / PAN FENG (author)
2024-03-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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