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High-phosphorus iron ore hydrogen reduction-self-crushing iron extraction and phosphorus removal method and device
The invention relates to the technical field of high-phosphorus iron ore treatment, and provides a high-phosphorus iron ore hydrogen reduction-self-crushing iron extraction and phosphorus removal method and device, and the method comprises the steps of pelletizing, hydrogen reduction, constant-temperature treatment, rapid cooling and crushing and phosphorus-iron separation. The device comprises a reduction furnace, a constant-temperature furnace and a crushing furnace which are sequentially communicated from top to bottom, the inner wall of the reduction furnace is provided with an electric heating unit; the bottom of the reduction furnace is communicated with a hydrogen storage tank; the top of the constant-temperature furnace is communicated with the bottom of the reduction furnace, and an electric heating unit is arranged on the inner wall; and a vibrating screen is arranged at the bottom of the crushing furnace, and the bottom of the crushing furnace is communicated with a nitrogen storage tank. According to the method, efficient separation of iron and phosphorus in the high-phosphorus iron ore can be achieved, the separated and collected metal iron can be directly used for steelmaking, the phosphorus-containing slag obtained through screening can serve as a raw material to be used for producing cement, phosphate fertilizer, concrete, ceramic materials, glass ceramics, fire-resistant heat-preservation fibers and the like, and green and efficient utilization of the high-phosphorus ore is achieved.
本发明涉及高磷铁矿处理技术领域，提供了一种高磷铁矿氢还原‑自粉碎提铁除磷方法及装置，所述方法包括造球、氢还原、恒温处理、快速冷却粉碎和磷铁分离。所述装置包括自上而下依次连通设置的还原炉、恒温炉、粉碎炉；还原炉顶部设置装料口，内壁设置电加热单元，还原炉底部连通储氢罐；恒温炉的顶部与还原炉的底部连通，内壁设置电加热单元；粉碎炉的顶部与恒温炉底部连通，粉碎炉底部设置振动筛网，粉碎炉底部连通储氮罐。本发明可实现高磷铁矿中铁和磷的高效分离，分离收集到的金属铁可直接用于炼钢，筛分得到的含磷渣可作为原料用于生产水泥、磷肥、混凝土、陶瓷材料、微晶玻璃、耐火保温纤维等，实现高磷矿的绿色、高效利用。
High-phosphorus iron ore hydrogen reduction-self-crushing iron extraction and phosphorus removal method and device
The invention relates to the technical field of high-phosphorus iron ore treatment, and provides a high-phosphorus iron ore hydrogen reduction-self-crushing iron extraction and phosphorus removal method and device, and the method comprises the steps of pelletizing, hydrogen reduction, constant-temperature treatment, rapid cooling and crushing and phosphorus-iron separation. The device comprises a reduction furnace, a constant-temperature furnace and a crushing furnace which are sequentially communicated from top to bottom, the inner wall of the reduction furnace is provided with an electric heating unit; the bottom of the reduction furnace is communicated with a hydrogen storage tank; the top of the constant-temperature furnace is communicated with the bottom of the reduction furnace, and an electric heating unit is arranged on the inner wall; and a vibrating screen is arranged at the bottom of the crushing furnace, and the bottom of the crushing furnace is communicated with a nitrogen storage tank. According to the method, efficient separation of iron and phosphorus in the high-phosphorus iron ore can be achieved, the separated and collected metal iron can be directly used for steelmaking, the phosphorus-containing slag obtained through screening can serve as a raw material to be used for producing cement, phosphate fertilizer, concrete, ceramic materials, glass ceramics, fire-resistant heat-preservation fibers and the like, and green and efficient utilization of the high-phosphorus ore is achieved.
本发明涉及高磷铁矿处理技术领域，提供了一种高磷铁矿氢还原‑自粉碎提铁除磷方法及装置，所述方法包括造球、氢还原、恒温处理、快速冷却粉碎和磷铁分离。所述装置包括自上而下依次连通设置的还原炉、恒温炉、粉碎炉；还原炉顶部设置装料口，内壁设置电加热单元，还原炉底部连通储氢罐；恒温炉的顶部与还原炉的底部连通，内壁设置电加热单元；粉碎炉的顶部与恒温炉底部连通，粉碎炉底部设置振动筛网，粉碎炉底部连通储氮罐。本发明可实现高磷铁矿中铁和磷的高效分离，分离收集到的金属铁可直接用于炼钢，筛分得到的含磷渣可作为原料用于生产水泥、磷肥、混凝土、陶瓷材料、微晶玻璃、耐火保温纤维等，实现高磷矿的绿色、高效利用。
High-phosphorus iron ore hydrogen reduction-self-crushing iron extraction and phosphorus removal method and device
高磷铁矿氢还原-自粉碎提铁除磷方法及装置
ZUO HAIBIN (author) / CHEN YANBIAO (author)
2022-06-28
Patent
Electronic Resource
Chinese
IPC:
C21B
Gewinnung von Eisen oder Stahl
,
MANUFACTURE OF IRON OR STEEL
/
C03C
Chemische Zusammensetzungen für Gläser, Glasuren oder Emails
,
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
/
C04B
Kalk
,
LIME
/
C05B
Phosphatische Düngemittel
,
PHOSPHATIC FERTILISERS
/
C22B
PRODUCTION OR REFINING OF METALS
,
Gewinnen oder Feinen von Metallen
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