Title:
SYSTEM FOR TREATING STEEL TAILINGS USING DRY METHOD
Document Type and Number:
WIPO Patent Application WO/2021/232489
Kind Code:
A1
Abstract:
Provided in the present invention is a system for treating steel tailings using a dry method, comprising: a roller mill completing repeated dissociation and pre-separation of the steel tailings and separating out minerals rich in iron particles and other light materials; a gravity separator connected to the roller mill to separate out heavy particles rich in iron particles; a first magnetic separator connected to the gravity separator to separate out the iron particles from the heavy particles rich in iron particles; a three-stage mass separator provided at the upper portion of the roller mill to separate out heavy particles, light particles, and steel slag micro-powder from the other light materials according to the weight; a second magnetic separator connected to the three-stage mass separator to separate out fine iron powder rich in magnetic iron oxide from the heavy particles; and a third magnetic separator connected to the three-stage mass separator to separate out iron-rich RO phase minerals from the light particles. According to the system for treating the steel tailings in the present invention, repeated grinding dissociation and pre-separation can be performed on the steel tailings, so that 100% of the steel tailings are converted into the iron particles, the fine iron powder, the iron-rich RO phase minerals, and the steel slag micro-powder.
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| JPH09225329 | VERTICAL ROLLER MILL |
Inventors:
CHENG FUAN (CN)
SUN JIANXIN (CN)
HU ZEWU (CN)
SUN JIANXIN (CN)
HU ZEWU (CN)
Application Number:
PCT/CN2020/093884
Publication Date:
November 25, 2021
Filing Date:
June 02, 2020
Export Citation:
Assignee:
LOESCHE SHANGHAI CO LTD (CN)
CHENG FUAN (CN)
SUN JIANXIN (CN)
CHENG FUAN (CN)
SUN JIANXIN (CN)
International Classes:
B02C15/00; B02C23/10; B02C23/14; B02C23/24; B03C1/30; C21B3/04
Foreign References:
| CN1390795A | 2003-01-15 | |||
| CN106694517A | 2017-05-24 | |||
| CN110369047A | 2019-10-25 | |||
| US20080148902A1 | 2008-06-26 |
Attorney, Agent or Firm:
LEADING INTELLECTUAL PROPERTY FIRM (CN)
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