CN103447147B - Novel low grade hematite ore concentration and water purification process - Google Patents
Novel low grade hematite ore concentration and water purification process Download PDFInfo
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- CN103447147B CN103447147B CN201310397812.XA CN201310397812A CN103447147B CN 103447147 B CN103447147 B CN 103447147B CN 201310397812 A CN201310397812 A CN 201310397812A CN 103447147 B CN103447147 B CN 103447147B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
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Abstract
The invention relates to a novel low grade hematite ore concentration and water purification process which comprises a fed concentrate concentration operation carried out after gravity concentrates and flotation concentrates are mixed, a fed tailing concentration operation of scavenged intermediate magnetic tailings, strong magnetic tailings and flotation tailings, a concentration operation carried out before intermediate operation tailings are fed into an strong magnetic operation, and a concentration operation carried out before strong magnetic operation concentrates and intermediate magnetic operation concentrates are fed into an flotation operation. The novel low grade hematite ore concentration and water purification process is characterized in that overflowing flow generated in the concentrate concentration operation is directly fed into a circulating water system; the fed tailing concentration operation of the scavenged intermediate magnetic tailings, the strong magnetic tailings and the flotation tailings is divided into two parts of concentration operations; overflowing flow generated in the concentration operation of the scavenged intermediate magnetic tailings is directly fed into the circulating water system; and overflowing flow generated in the mixed concentration operation of the strong magnetic tailings and the flotation tailings is fed into a water purification operation. The novel low grade hematite ore concentration and water purification process has the advantages of reducing a load of the water purification operation and saving construction investment and operation cost of the water purification operation on the basis of ensuring water quality and the flow rate of recycling water in the beneficiation process of low grade hematite ore.
Description
Technical field
The invention belongs to technical field of beneficiation, specifically concentrated, the Water warfare new technology of a kind of lean hematite.
Background technology
Anshan type lean hematite is the important iron ore type of China, adopts stage grinding, coarse and fine separation more at present, the magnetic-anion reverse floatation technique of gravity treatment-by force carries out mineral processing production.Scalping overflow is divided into thick, thin two kinds of products through thickness grading operation; Coarse component feeds reselection operation, selects gravity concentrate through thick spiral shell operation, smart spiral shell operation, and abandon mine tailing by sweeping middle magnetic operation, chats returns thickness grading operation after feeding the process of secondary grinding graded operation; Fine fraction feeds middle magnetic operation; Middle magnetic operation mine tailing concentrates operation before feeding strong magnetic, and before strong magnetic, concentrated operation underflow feeds strong magnetic operation and throws tail, feeds the front concentrated operation of flotation after strong magnetic operation concentrate and the mixing of middle magnetic operation concentrate.Before flotation, concentrated operation underflow feeds flotation operation, selects flotation concentrate, jettisoning flotation tailing.
To above-mentioned gravity concentrate and flotation concentrate, sweep middle magnetic tail ore deposit, strong magnetic tail ore deposit and flotation tailing, middle magnetic operation mine tailing, the process of strong magnetic operation concentrate and middle magnetic operation concentrate feeds concentrate after usually adopting gravity concentrate and flotation concentrate mixing and concentrates operation, and its underflow is final concentrate product; Comprehensive Tailing thickening operation is fed after sweeping magnetic tail ore deposit, strong magnetic tail ore deposit and flotation tailing mixing; Its underflow is true tailings, middle magnetic operation mine tailing is concentrated operation before feeding strong magnetic, its underflow feeds strong magnetic operation, strong magnetic operation concentrate and middle magnetic operation concentrate be concentrated operation before feeding flotation, its underflow feeds flotation operation, before concentrate concentrates the overflow of operation, the overflow of the front concentrated operation of the overflow of Tailing thickening operation, by force magnetic and flotation, the overflow of concentrated operation feeds Water warfare operation after mixing, the overflow of Water warfare operation is that ring water re-uses, and the underflow of its underflow and comprehensive Tailing thickening operation is mixed into true tailings.
In this technique, concentrated operation and Water warfare operation as shown in Figure 1, have the following disadvantages:
One is that gravity concentrate and Floatation Concentrate Grade are high, sedimentation fast, and the overflow that concentrate concentrates operation is clear, has met ring water water quality requirement, need not feed Water warfare operation process again, can directly use;
Two is sweep middle magnetic tail ore deposit coarse size, sedimentation soon, and as concentrated separately, its overflow also meets ring water water quality requirement, also need not feed Water warfare operation process again, can directly use.
Summary of the invention
The object of this invention is to provide one and can improve concentrated, Water warfare efficiency, improving Business Economic Benefit has that lean hematite is concentrated, Water warfare new technology.
The object of the present invention is achieved like this.
Lean hematite of the present invention concentrates, Water warfare new technology, feed concentrate after comprising gravity concentrate and flotation concentrate mixing and concentrate operation, sweep middle magnetic tail ore deposit, strong magnetic tail ore deposit and flotation tailing feed Tailing thickening operation, middle magnetic operation mine tailing is concentrated operation before feeding strong magnetic, its underflow feeds strong magnetic, strong magnetic operation concentrate and middle magnetic operation concentrate be concentrated operation before feeding flotation, its underflow feeds flotation, the underflow that concentrate concentrates operation is final concentrate, sweep middle magnetic tail ore deposit, the underflow of the concentrated operation of strong magnetic tail ore deposit and flotation tailing is true tailings, the overflow of the overflow of concentrated operation before strong magnetic and the front concentrated operation of flotation feeds Water warfare operation, it is characterized in that:
The overflow that described concentrate concentrates operation directly feeds circulation;
Described sweep middle magnetic tail ore deposit, strong magnetic tail ore deposit and flotation tailing to feed Tailing thickening operation be that two parts concentrate operation, one is sweep the operation of middle magnetic Tailing thickening, and two is strong magnetic tail ore deposit and the concentrated operation of flotation tailing mixing,
The described overflow of sweeping the operation of middle magnetic Tailing thickening directly feeds circulation;
The overflow of described strong magnetic tail ore deposit and the concentrated operation of flotation tailing mixing feeds Water warfare operation;
The overflow that the overflow of described Water warfare operation and concentrate concentrate operation, the overflow of sweeping the operation of middle magnetic Tailing thickening are that ring water re-uses, Water warfare operation underflow and sweep middle magnetic Tailing thickening operation underflow, the underflow of strong magnetic tail ore deposit and the concentrated operation of flotation tailing mixing is mixed into true tailings.
Advantage of the present invention is:
The present invention, on the basis of guaranteeing lean hematite ore dressing ring water water quality and flow, reduces the load of Water warfare operation, save Water warfare operation capital expenditure and operation cost.
Accompanying drawing explanation
Fig. 1 is former process chart.
Fig. 2 is process chart of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 2, lean hematite of the present invention concentrates, Water warfare new technology, feed concentrate after comprising gravity concentrate and flotation concentrate mixing and concentrate operation, sweep middle magnetic tail ore deposit, strong magnetic tail ore deposit and flotation tailing feed Tailing thickening operation, middle magnetic operation mine tailing is concentrated operation before feeding strong magnetic, its underflow feeds strong magnetic, strong magnetic operation concentrate and middle magnetic operation concentrate be concentrated operation before feeding flotation, its underflow feeds flotation, the underflow that concentrate concentrates operation is final concentrate, sweep middle magnetic tail ore deposit, the underflow of the concentrated operation of strong magnetic tail ore deposit and flotation tailing is true tailings, the overflow of the overflow of concentrated operation before strong magnetic and the front concentrated operation of flotation feeds Water warfare operation, it is characterized in that:
The overflow that described concentrate concentrates operation directly feeds circulation;
Described sweep middle magnetic tail ore deposit, strong magnetic tail ore deposit and flotation tailing to feed Tailing thickening operation be that two parts concentrate operation, one is sweep the operation of middle magnetic Tailing thickening, and two is strong magnetic tail ore deposit and the concentrated operation of flotation tailing mixing,
The described overflow of sweeping the operation of middle magnetic Tailing thickening directly feeds circulation;
The overflow of described strong magnetic tail ore deposit and the concentrated operation of flotation tailing mixing feeds Water warfare operation;
The overflow that the overflow of described Water warfare operation and concentrate concentrate operation, the overflow of sweeping the operation of middle magnetic Tailing thickening are that ring water re-uses, Water warfare operation underflow and sweep middle magnetic Tailing thickening operation underflow, the underflow of strong magnetic tail ore deposit and the concentrated operation of flotation tailing mixing is mixed into true tailings.
To certain treating capacity 8,000,000 tons in ore dressing plant year, the lean hematite of employing accompanying drawing 1 is concentrated, water purification process, concentrator is thickener before thickener before 2 φ 45m concentrate thickeners, 4 φ 53m Tailing thickening machines, 2 strong magnetic of φ 53m, 2 φ 53m flotation, and water correction plant is 4 φ 29m mechanical accelerating purifying pools.The overflow turbidity of overflow and Water warfare operation that concentrate concentrates operation is 80 mg/L, meets the requirement of circulating water quality (turbidity < 100 mg/L).Water warfare operation year consumes hematite rock water purification agent 8400 tons, and expense reaches 184.8 ten thousand yuan.Adopt that lean hematite of the present invention is concentrated, after Water warfare new technology, turbidity is overflow that 80 mg/L concentrate concentrate operation and directly feeds circulation and recycle; Middle magnetic tail ore deposit is swept in the process of 2 φ 53m Tailing thickening machines, all the other 2 strong magnetic tail ore deposits of φ 53m Tailing thickening machine process and flotation tailings, the overflow turbidity sweeping the operation of middle magnetic Tailing thickening also reaches 80 mg/L, meets ring water water quality requirement, directly feeds circulation and recycles; Feed Water warfare operation after the overflow of concentrated operation before strong magnetic tail ore deposit and flotation tailing concentrate the overflow of operation, strong magnetic and the overflow mixing of the front concentrated operation of flotation, water correction plant operating number is kept to 3 φ 29m mechanical accelerating purifying pools, red
Ferrilite water purification agent yearly consumption reduces 1680 tons, and spend 36.96 ten thousand yuan less, the overflow turbidity of Water warfare operation also reaches 80 mg/L.
Claims (1)
1. a lean hematite concentrates, Water warfare new technology, feed concentrate after comprising gravity concentrate and flotation concentrate mixing and concentrate operation, sweep middle magnetic tail ore deposit, strong magnetic tail ore deposit and flotation tailing feed Tailing thickening operation, middle magnetic operation mine tailing is concentrated operation before feeding strong magnetic, its underflow feeds strong magnetic, strong magnetic operation concentrate and middle magnetic operation concentrate be concentrated operation before feeding flotation, its underflow feeds flotation, the underflow that concentrate concentrates operation is final concentrate, sweep middle magnetic tail ore deposit, the underflow of the concentrated operation of strong magnetic tail ore deposit and flotation tailing is true tailings, the overflow of the overflow of concentrated operation before strong magnetic and the front concentrated operation of flotation feeds Water warfare operation, it is characterized in that:
The overflow that described concentrate concentrates operation directly feeds circulation;
Described sweep middle magnetic tail ore deposit, strong magnetic tail ore deposit and flotation tailing to feed Tailing thickening operation be that two parts concentrate operation, one is sweep the operation of middle magnetic Tailing thickening, and two is strong magnetic tail ore deposit and the concentrated operation of flotation tailing mixing,
The described overflow of sweeping the operation of middle magnetic Tailing thickening directly feeds circulation;
The overflow of described strong magnetic tail ore deposit and the concentrated operation of flotation tailing mixing feeds Water warfare operation;
The overflow that the overflow of described Water warfare operation and concentrate concentrate operation, the overflow of sweeping the operation of middle magnetic Tailing thickening are that ring water re-uses, Water warfare operation underflow and sweep middle magnetic Tailing thickening operation underflow, the underflow of strong magnetic tail ore deposit and the concentrated operation of flotation tailing mixing is mixed into true tailings.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103934118B (en) * | 2014-05-05 | 2016-08-31 | 河南东大矿业股份有限公司 | A kind of bauxite mineral water circulation reuse method |
| CN104923389A (en) * | 2015-05-28 | 2015-09-23 | 攀钢集团矿业有限公司 | Method and system for concentrating and separating two segments of low-intensity magnetic separation iron tailings to obtain ilmenite |
| CN105540799A (en) * | 2016-01-26 | 2016-05-04 | 太原钢铁(集团)有限公司 | Method for improving quality of red ore back water |
| CN106423584B (en) * | 2016-12-21 | 2019-07-12 | 中蓝连海设计研究院有限公司 | A kind of collophane direct reverse flotation technique that floatation process water recycles respectively |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2350396C2 (en) * | 2007-04-16 | 2009-03-27 | Государственное образовательное учреждение высшего профессионального образования "Московский государственный институт стали и сплавов" (технологический университет) | Method of flotation concentration of cake of sulphuric acid leaching of copper ore |
| CN101559295A (en) * | 2009-05-08 | 2009-10-21 | 昆明理工大学 | Tailing dry heaping method |
| CN102671755A (en) * | 2012-05-06 | 2012-09-19 | 鞍钢集团矿业公司 | Gravity selection-screening process additionally arranged before reverse flotation operation of hematite |
| CN102671758A (en) * | 2012-05-16 | 2012-09-19 | 云南三明鑫疆矿业有限公司 | Direct and reverse flotation desliming process of collophanite |
| CN103272680A (en) * | 2013-06-13 | 2013-09-04 | 鞍钢集团矿业公司 | Gravity regrinding technology capable of improving balling performance of hematite ore concentrates |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2350396C2 (en) * | 2007-04-16 | 2009-03-27 | Государственное образовательное учреждение высшего профессионального образования "Московский государственный институт стали и сплавов" (технологический университет) | Method of flotation concentration of cake of sulphuric acid leaching of copper ore |
| CN101559295A (en) * | 2009-05-08 | 2009-10-21 | 昆明理工大学 | Tailing dry heaping method |
| CN102671755A (en) * | 2012-05-06 | 2012-09-19 | 鞍钢集团矿业公司 | Gravity selection-screening process additionally arranged before reverse flotation operation of hematite |
| CN102671758A (en) * | 2012-05-16 | 2012-09-19 | 云南三明鑫疆矿业有限公司 | Direct and reverse flotation desliming process of collophanite |
| CN103272680A (en) * | 2013-06-13 | 2013-09-04 | 鞍钢集团矿业公司 | Gravity regrinding technology capable of improving balling performance of hematite ore concentrates |
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Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Anshan Iron & Steel Group Mining Co., Ltd. |