Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Production method of chromite pre-reduced pellets
The invention relates to the field of ferrochrome production, in particular to a production method of chromite pre-reduced pellets, the chromite pre-reduced pellets are prepared from, by mass, 59%-72% of chromite, 10%-13% of coke, 7%-10% of coke powder, 5%-7% of dolomite, 4%-7% of silica and 2%-4% of ferrosilicon, and the production method of the chromite pre-reduced pellets comprises the steps of drying, dry grinding, batching, pelletizing and roasting. A refractory material resistant to high temperature and reducing atmosphere is used in roasting equipment, and the refractory material is prepared from the following raw materials in percentage by mass: 15 to 25 weight percent of zinc-aluminum spinel particles, 15 to 25 weight percent of corundum powder, 20 to 30 weight percent of SiC-zinc-aluminum spinel particles, 10 to 20 weight percent of periclase particles and 10 to 30 weight percent of Al2O3 and CaCO3 particles.
本发明涉及铬铁生产领域，具体是一种铬铁矿预还原球团的生产方法，其中，所述铬铁矿预还原球团以下质量分数的原料制备而成：铬铁矿59wt%~72wt%、焦炭10wt%~13wt%、焦粉7wt%~10wt%、白云石5wt%~7wt%、硅石4wt%~7wt%、硅铁2wt%~4wt%，所述铬铁矿预还原球团的生产方法包括干燥、干磨、配料、造球和焙烧，焙烧设备内使用了一种耐高温耐还原性气氛的耐火材料，由以下质量分数的原料组成：15~25wt%的锌铝尖晶石颗粒和15~25wt%的刚玉粉、20~30wt%的SiC‑锌铝尖晶石颗粒、10~20wt%的方镁石颗粒和10~30wt%的Al2O3@CaCO3颗粒。
Production method of chromite pre-reduced pellets
The invention relates to the field of ferrochrome production, in particular to a production method of chromite pre-reduced pellets, the chromite pre-reduced pellets are prepared from, by mass, 59%-72% of chromite, 10%-13% of coke, 7%-10% of coke powder, 5%-7% of dolomite, 4%-7% of silica and 2%-4% of ferrosilicon, and the production method of the chromite pre-reduced pellets comprises the steps of drying, dry grinding, batching, pelletizing and roasting. A refractory material resistant to high temperature and reducing atmosphere is used in roasting equipment, and the refractory material is prepared from the following raw materials in percentage by mass: 15 to 25 weight percent of zinc-aluminum spinel particles, 15 to 25 weight percent of corundum powder, 20 to 30 weight percent of SiC-zinc-aluminum spinel particles, 10 to 20 weight percent of periclase particles and 10 to 30 weight percent of Al2O3 and CaCO3 particles.
本发明涉及铬铁生产领域，具体是一种铬铁矿预还原球团的生产方法，其中，所述铬铁矿预还原球团以下质量分数的原料制备而成：铬铁矿59wt%~72wt%、焦炭10wt%~13wt%、焦粉7wt%~10wt%、白云石5wt%~7wt%、硅石4wt%~7wt%、硅铁2wt%~4wt%，所述铬铁矿预还原球团的生产方法包括干燥、干磨、配料、造球和焙烧，焙烧设备内使用了一种耐高温耐还原性气氛的耐火材料，由以下质量分数的原料组成：15~25wt%的锌铝尖晶石颗粒和15~25wt%的刚玉粉、20~30wt%的SiC‑锌铝尖晶石颗粒、10~20wt%的方镁石颗粒和10~30wt%的Al2O3@CaCO3颗粒。
Production method of chromite pre-reduced pellets
一种铬铁矿预还原球团的生产方法
LIU FEI (Autor:in) / ZHOU RUIDONG (Autor:in) / TIAN XIAOLEI (Autor:in)
03.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C22B
PRODUCTION OR REFINING OF METALS
,
Gewinnen oder Feinen von Metallen
/
C04B
Kalk
,
LIME
/
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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Coprecipitation synthesis of doped lanthanum chromite
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