Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing high-density fused magnesite by reburning electric smelting composite process
The invention relates to a method for preparing high-density fused magnesite by a reburning and electric smelting composite process. The preparation process comprises the steps of reburning, crushing,melting, cooling and lump breaking. The method has the beneficial effects that magnesite is reburnt at the high temperature of 1400-1800 DEG C, so that CO2 gas escapes completely, the porosity of thematerial is reduced, and the slag corrosion resistance is enhanced. The fused magnesite is obtained by smelting dead burned magnesia blocks with the particle size of 50-100 mm, and due to the fact that the dead burned magnesia is blocky, the exhaust effect is remarkable, and low-melting-point impurities are sublimated and converted into gaseous impurities to be exhausted more smoothly. The fusedmagnesite produced by the method is beneficial to increase of the content of magnesium oxide, enhancement of the densification degree and improvement of the slag resistance.
本发明涉及一种重烧电熔复合工艺制备高致密电熔镁砂的方法，其制备过程包括重烧、破碎、熔融、冷却、破坨。发明有益之处在于：在1400‑1800℃高温条件下重烧菱镁矿石，使CO气体完全逸出，减少物料气孔率，增强抗渣侵蚀能力。采用粒度为50‑100mm重烧氧化镁块料通过熔炼的方式得到电熔镁砂，由于重烧氧化镁为块状，排气效果显著，使低熔点杂质升华转化为气态排出而变得更加通畅。本发明方法生产电熔镁砂有利于氧化镁含量增加，致密化程度增强，抗渣能力提高。
Method for preparing high-density fused magnesite by reburning electric smelting composite process
The invention relates to a method for preparing high-density fused magnesite by a reburning and electric smelting composite process. The preparation process comprises the steps of reburning, crushing,melting, cooling and lump breaking. The method has the beneficial effects that magnesite is reburnt at the high temperature of 1400-1800 DEG C, so that CO2 gas escapes completely, the porosity of thematerial is reduced, and the slag corrosion resistance is enhanced. The fused magnesite is obtained by smelting dead burned magnesia blocks with the particle size of 50-100 mm, and due to the fact that the dead burned magnesia is blocky, the exhaust effect is remarkable, and low-melting-point impurities are sublimated and converted into gaseous impurities to be exhausted more smoothly. The fusedmagnesite produced by the method is beneficial to increase of the content of magnesium oxide, enhancement of the densification degree and improvement of the slag resistance.
本发明涉及一种重烧电熔复合工艺制备高致密电熔镁砂的方法，其制备过程包括重烧、破碎、熔融、冷却、破坨。发明有益之处在于：在1400‑1800℃高温条件下重烧菱镁矿石，使CO气体完全逸出，减少物料气孔率，增强抗渣侵蚀能力。采用粒度为50‑100mm重烧氧化镁块料通过熔炼的方式得到电熔镁砂，由于重烧氧化镁为块状，排气效果显著，使低熔点杂质升华转化为气态排出而变得更加通畅。本发明方法生产电熔镁砂有利于氧化镁含量增加，致密化程度增强，抗渣能力提高。
Method for preparing high-density fused magnesite by reburning electric smelting composite process
一种重烧电熔复合工艺制备高致密电熔镁砂的方法
WANG MINGDUO (Autor:in) / LIU SHIJUN (Autor:in) / ZHAO JIALIANG (Autor:in) / LUO XUDONG (Autor:in)
28.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME