Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Process method for preparing compact CA2-CA6 complex-phase refractory clinker by one-step method
The invention relates to a process method for preparing a compact CA2-CA6 complex-phase fire-resistant clinker by a one-step method. The compact CA2-CA6 complex-phase fire-resistant clinker comprises, by weight, 38.69-86.36% of Al2O3, 10.64-20.31% of CaO and 1-3% of mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1. The relative density is 90.7-93.6%, and the apparent porosity is 3.3-4.8%. The preparation method comprises the following steps: (1) respectively grinding bauxite, limestone and the mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1, and mixing; and (2) pressing the mixed material into green pellets, and then calcining to prepare the clinker. The mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1 is used as a sintering promoter, and the mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1 is dissolved in a CA2-CA6 phase to form a solid solution in the calcining process, so that the sintering activity of the CA2-CA6 phase is improved, and the compact CA2-CA6 complex-phase refractory clinker can be obtained under the conditions of lower calcining temperature and shorter heat preservation time; and the production energy consumption is effectively reduced, the production efficiency is improved, and energy conservation and emission reduction are promoted.
一种一步法制备致密CA2‑CA6复相耐火熟料的工艺方法，其成分按重量百分比含Al2O378.69～86.36％，CaO 10.64～20.31％，重量比为1:1的La2O3与TiO2混合微粉1～3％；其相对密度为90.7～93.6％，显气孔率为3.3～4.8％。制备方法为：(1)将铝矾土、石灰石和重量比为1:1的La2O3与TiO2混合微粉分别磨细后混合；(2)将混合物料压制成生球，然后进行煅烧制成熟料。本发明采用重量比为1:1的La2O3与TiO2混合微粉作为促烧结剂，在煅烧过程重量比为1:1的La2O3与TiO2混合微粉固溶到CA2‑CA6相中形成固溶体，从而提高了CA2‑CA6相的烧结活性，从而可在较低的煅烧温度和较短的保温时间条件下获得致密CA2‑CA6复相耐火熟料，有效降低了生产能耗，提高了生产效率，促进了节能减排。
Process method for preparing compact CA2-CA6 complex-phase refractory clinker by one-step method
The invention relates to a process method for preparing a compact CA2-CA6 complex-phase fire-resistant clinker by a one-step method. The compact CA2-CA6 complex-phase fire-resistant clinker comprises, by weight, 38.69-86.36% of Al2O3, 10.64-20.31% of CaO and 1-3% of mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1. The relative density is 90.7-93.6%, and the apparent porosity is 3.3-4.8%. The preparation method comprises the following steps: (1) respectively grinding bauxite, limestone and the mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1, and mixing; and (2) pressing the mixed material into green pellets, and then calcining to prepare the clinker. The mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1 is used as a sintering promoter, and the mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1 is dissolved in a CA2-CA6 phase to form a solid solution in the calcining process, so that the sintering activity of the CA2-CA6 phase is improved, and the compact CA2-CA6 complex-phase refractory clinker can be obtained under the conditions of lower calcining temperature and shorter heat preservation time; and the production energy consumption is effectively reduced, the production efficiency is improved, and energy conservation and emission reduction are promoted.
一种一步法制备致密CA2‑CA6复相耐火熟料的工艺方法，其成分按重量百分比含Al2O378.69～86.36％，CaO 10.64～20.31％，重量比为1:1的La2O3与TiO2混合微粉1～3％；其相对密度为90.7～93.6％，显气孔率为3.3～4.8％。制备方法为：(1)将铝矾土、石灰石和重量比为1:1的La2O3与TiO2混合微粉分别磨细后混合；(2)将混合物料压制成生球，然后进行煅烧制成熟料。本发明采用重量比为1:1的La2O3与TiO2混合微粉作为促烧结剂，在煅烧过程重量比为1:1的La2O3与TiO2混合微粉固溶到CA2‑CA6相中形成固溶体，从而提高了CA2‑CA6相的烧结活性，从而可在较低的煅烧温度和较短的保温时间条件下获得致密CA2‑CA6复相耐火熟料，有效降低了生产能耗，提高了生产效率，促进了节能减排。
Process method for preparing compact CA2-CA6 complex-phase refractory clinker by one-step method
一种一步法制备致密CA2-CA6复相耐火熟料的工艺方法
YIN XUELIANG (Autor:in) / HAN TINGQUAN (Autor:in) / DING HONGHAI (Autor:in) / WANG QUANZHOU (Autor:in) / YIN XUEDONG (Autor:in) / ZHANG BO (Autor:in)
20.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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