A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cement clinker and preparation process thereof
The invention provides a cement clinker. The cement clinker is prepared from a raw material formed by mixing the following raw materials in parts by weight: 88-92 parts of low-grade limestone; 4-8 parts of sandstone; 1-5 parts of coal gangue; 1.5 to 3.5 parts of sulfuric acid residue; the content of calcium oxide in the low-grade limestone is 30-40%; the content of magnesium oxide is 15-20%; the aluminum rate of the cement raw material is controlled; meanwhile, the position of a coal pipe in the raw material calcining process is adjusted to control the length of a high-temperature zone and the calcining temperature to prepare the cement clinker, and the content of free calcium in the cement clinker is 0.4-0.9%; the qualified rate reaches 98% or above, and the daily output reaches 5320 tons.
本发明提供了一种水泥熟料，所述的水泥熟料由以下重量份数的原料混合而成的生料制备而成：低品位石灰石88‑92份；砂岩4‑8份；煤矸石1‑5份；硫酸渣1.5‑3.5份；所述的低品位石灰石中氧化钙的含量为30‑40%；氧化镁的含量为15‑20%；本发明通过控制水泥生料铝率；同时调整生料煅烧过程中煤管的位置控制高温带的长度以及控制煅烧的温度制备获得了水泥熟料，水泥熟料中游离钙含量为0.4‑0.9%；合格率达到了98%以上，日产量达到5320吨。
Cement clinker and preparation process thereof
The invention provides a cement clinker. The cement clinker is prepared from a raw material formed by mixing the following raw materials in parts by weight: 88-92 parts of low-grade limestone; 4-8 parts of sandstone; 1-5 parts of coal gangue; 1.5 to 3.5 parts of sulfuric acid residue; the content of calcium oxide in the low-grade limestone is 30-40%; the content of magnesium oxide is 15-20%; the aluminum rate of the cement raw material is controlled; meanwhile, the position of a coal pipe in the raw material calcining process is adjusted to control the length of a high-temperature zone and the calcining temperature to prepare the cement clinker, and the content of free calcium in the cement clinker is 0.4-0.9%; the qualified rate reaches 98% or above, and the daily output reaches 5320 tons.
本发明提供了一种水泥熟料，所述的水泥熟料由以下重量份数的原料混合而成的生料制备而成：低品位石灰石88‑92份；砂岩4‑8份；煤矸石1‑5份；硫酸渣1.5‑3.5份；所述的低品位石灰石中氧化钙的含量为30‑40%；氧化镁的含量为15‑20%；本发明通过控制水泥生料铝率；同时调整生料煅烧过程中煤管的位置控制高温带的长度以及控制煅烧的温度制备获得了水泥熟料，水泥熟料中游离钙含量为0.4‑0.9%；合格率达到了98%以上，日产量达到5320吨。
Cement clinker and preparation process thereof
一种水泥熟料及其制备工艺
ZHANG ZAILI (author) / ZHANG QINGFU (author) / WANG HUAMIN (author)
2023-04-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME