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Preparation method of periclase-forsterite complex-phase refractory raw material
The invention discloses a preparation method of a periclase-forsterite complex-phase refractory raw material. The preparation method comprises the following steps: A, pretreating a magnesite raw material: drying, crushing and screening high-silicon magnesite or reverse flotation magnesite tailings; b, selecting magnesite raw material fuel: taking coal or coke as fuel; c, performing high-temperature sintering on the magnesite raw material: calcining the raw material by using a shaft kiln at the calcining temperature of more than 1500 DEG C; the high-silicon magnesite and the reverse flotation magnesite tailings which are used as solid waste accumulation are used as raw materials, the periclase-forsterite complex-phase refractory raw material is prepared through one-step calcination, the utilization rate of magnesite resources is increased, and the complex-phase refractory raw material which is larger than 10 micrometers in grain size, larger than 2.69 g/cm < 3 > in volume density and excellent in performance is obtained. The complete preparation process for preparing the periclase-forsterite multiphase refractory material from the high-silicon magnesite or reverse flotation magnesite tailings is formed, and green and intelligent new upgrading of the magnesite industry is promoted.
本发明公开了一种方镁石‑镁橄榄石复相耐火原料的制备方法，其制备方法包括以下步骤：A、菱镁矿原料预处理：将高硅菱镁矿或反浮选菱镁矿尾矿烘干、破碎及筛分工序；B、菱镁矿原料燃料选择：以煤或焦炭作为燃料；C、菱镁矿原料高温烧结：使用竖窑对原料进行煅烧，煅烧温度大于1500℃。本发明利用作为固废堆积的高硅菱镁矿和反浮选菱镁矿尾矿为原料，一步煅烧制备方镁石‑镁橄榄石复相耐火原料，提高了菱镁矿资源利用率，并且获得晶粒尺寸大于10μm、体积密度大于2.69 g/cm3的性能优异的复相耐火原料，形成了一套完整的高硅菱镁矿或反浮选菱镁矿尾矿制备方镁石‑镁橄榄石复相耐火材料的制备工艺，促进了菱镁行业的绿色智能新升级。
Preparation method of periclase-forsterite complex-phase refractory raw material
The invention discloses a preparation method of a periclase-forsterite complex-phase refractory raw material. The preparation method comprises the following steps: A, pretreating a magnesite raw material: drying, crushing and screening high-silicon magnesite or reverse flotation magnesite tailings; b, selecting magnesite raw material fuel: taking coal or coke as fuel; c, performing high-temperature sintering on the magnesite raw material: calcining the raw material by using a shaft kiln at the calcining temperature of more than 1500 DEG C; the high-silicon magnesite and the reverse flotation magnesite tailings which are used as solid waste accumulation are used as raw materials, the periclase-forsterite complex-phase refractory raw material is prepared through one-step calcination, the utilization rate of magnesite resources is increased, and the complex-phase refractory raw material which is larger than 10 micrometers in grain size, larger than 2.69 g/cm < 3 > in volume density and excellent in performance is obtained. The complete preparation process for preparing the periclase-forsterite multiphase refractory material from the high-silicon magnesite or reverse flotation magnesite tailings is formed, and green and intelligent new upgrading of the magnesite industry is promoted.
本发明公开了一种方镁石‑镁橄榄石复相耐火原料的制备方法，其制备方法包括以下步骤：A、菱镁矿原料预处理：将高硅菱镁矿或反浮选菱镁矿尾矿烘干、破碎及筛分工序；B、菱镁矿原料燃料选择：以煤或焦炭作为燃料；C、菱镁矿原料高温烧结：使用竖窑对原料进行煅烧，煅烧温度大于1500℃。本发明利用作为固废堆积的高硅菱镁矿和反浮选菱镁矿尾矿为原料，一步煅烧制备方镁石‑镁橄榄石复相耐火原料，提高了菱镁矿资源利用率，并且获得晶粒尺寸大于10μm、体积密度大于2.69 g/cm3的性能优异的复相耐火原料，形成了一套完整的高硅菱镁矿或反浮选菱镁矿尾矿制备方镁石‑镁橄榄石复相耐火材料的制备工艺，促进了菱镁行业的绿色智能新升级。
Preparation method of periclase-forsterite complex-phase refractory raw material
一种方镁石-镁橄榄石复相耐火原料的制备方法
LUO XUDONG (author) / WU SHENG (author) / ZHAO JINGMING (author)
2024-07-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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