CN102755932A - Beneficiation and desilicication method of low- and medium-grade bauxite - Google Patents
Beneficiation and desilicication method of low- and medium-grade bauxite Download PDFInfo
- Publication number
- CN102755932A CN102755932A CN2011101097852A CN201110109785A CN102755932A CN 102755932 A CN102755932 A CN 102755932A CN 2011101097852 A CN2011101097852 A CN 2011101097852A CN 201110109785 A CN201110109785 A CN 201110109785A CN 102755932 A CN102755932 A CN 102755932A
- Authority
- CN
- China
- Prior art keywords
- flotation
- low
- flotation column
- ore
- beneficiation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a beneficiation method, in particular to a beneficiation and desilicication method of low- and medium-grade bauxite. The beneficiation and desilicication method of the low- and medium-grade bauxite includes following steps: the low- and medium-grade bauxite serves as raw ore, the raw ore is graded after ore grinding, and ore materials meeting requirements are graded again; concentrate is sorted out, and the rest of the ore materials is roughed; the ore materials passing through a flotation column are roughed and divided into two parts, the ore materials are selected and scavenged, the concentrate floated out by the flotation column is selected, and tailings floated out by a flotator are scavenged. The beneficiation and desilicication method of the low- and medium-grade bauxite has the advantages that influence of flotation column fluctuation to indicators is effectively reduced, recovery rate can be increased, concentrate grade can be guaranteed, energy consumption can be saved by around 5% by the aid of the procedure, and due to reduction of devices, construction area of a plant can be reduced by around 10%.
Description
Technical field
The present invention relates to a kind of beneficiation method, relate in particular to a kind of dressing process for desiliconizing of middle-low bauxite.
Background technology
After the nineties in 20th century, the direct-flotation desiliconisation technology of bauxite has just obtained breakthrough, and separation index significantly improves, and wherein the selective milling of Central South University's proposition-branch company has obtained using widely in middle aluminium Central Region to gather a floatation process.
Like Fig. 1 Central Region branch company ore concentration of bauxite current technology flow process be: raw ore is after fragmentation, ore grinding, classification; Two sections classifier overflows feed the tank diameter dosing and size mixing the back from flowing to the flotation device group, through one roughing, once purging selection, recleaning, once essence is scanned five sections separation operationes.The bauxite sorting long-term production practice of Central Region aluminium manufacturer shows that the outstanding advantage of flotation device technology is: long flow path, index fluctuate little, strong to coarse granule recovery ability.But also exist significantly not enoughly, promptly adopt one slightly to sweep two single-minded essences and sweep totally five sections operations, long flow path, complex process altogether.
In the superfine material sorting technology, flotation device once was the equipment of widespread usage.But along with exploitation poor, thin bauxite resource, flotation device is more obvious to the low inferior position of the superfine material efficiency of separation, thereby causes existing sorting flow process complicated, and production cost is high, and then has influenced the popularization of ore concentration of bauxite technology.By eddy flow one static microbubble floatation column of China Mining University independent development development, because its unique design and the mineralising mode that material is strengthened thereby formed the separating effect very desirable to fine particle stage material.
Summary of the invention
In order solve the problems of the technologies described above the present invention a kind of beneficiation method of middle-low bauxite, purpose to be provided is the advantage that makes full use of flotation column and flotation device, in whole bauxite flotation process, coordinates each other, makes the index of flotation can reach optimum.
For reaching the dressing process for desiliconizing of above-mentioned purpose middle-low bauxite of the present invention, comprise the steps: with the middle-low bauxite to be raw ore, raw ore is carried out classification behind the ore grinding, symbol will require mineral aggregate classification once more; Sub-elect concentrate, remainder is roughly selected; The mineral aggregate of roughly selecting through flotation column is divided into two parts, carry out respectively selected with scan, selectedly floatingly select concentrate through flotation column, scan through flotation device and floatingly select mine tailing.
Described selected returning with defective mineral aggregate that scan out roughly selected step.
Described flotation column is connected with tailings pump.
Described flotation column is eddy flow one static microbubble floatation column, and flotation column adopts series system, is scanning part employing large flotation machines.
Advantageous effect of the present invention:
(1) stability of a system.Compare with present engineer testing system, after the devices in series operation, be equivalent to prolong flow process; Effectively alleviated the influence of flotation column fluctuation to index; Adopt tailings pump control flotation column liquid level mode simultaneously, helped liquid level stabilizing, particularly helped the stable of mine tailing index.
(2) index advantage.Flotation column-flotation device combined process flow not only helps the recovery of subparticle, for the recovery of thickness particle corresponding facilitation is arranged also, helps improving the rate of recovery and guarantees concentrate grade.
(3) energy-saving and cost-reducing.Flotation flowsheet reduces a lot of steps than former flow process, therefore adopts this flow process can practice thrift the energy consumption about 5%.
(4) workshop building aspect.Because equipment reduces, and makes the construction area of factory building to reduce about 10%.
Description of drawings
Fig. 1 is existing classification-flotation flowsheet.
Fig. 2 is the technological process of flotation column-flotation device associating.
The specific embodiment
Below in conjunction with accompanying drawing and instance the present invention is described further.
The dressing process for desiliconizing of middle-low bauxite of the present invention as shown in Figure 2 comprises the steps: with the middle-low bauxite to be raw ore, and raw ore is carried out classification behind the ore grinding, and symbol will require mineral aggregate classification once more; Sub-elect concentrate, remainder is roughly selected; The mineral aggregate of roughly selecting through flotation column is divided into two parts, carry out respectively selected with scan, selectedly floatingly select concentrate through flotation column, scan through flotation device and floatingly select mine tailing; Selected returning with defective mineral aggregate that scan out roughly selected step; Flotation column is connected with tailings pump; Flotation column is eddy flow one static microbubble floatation column, and flotation column adopts series system, is scanning part employing large flotation machines.
Index and the table 2 flotation column-technological process of flotation device associating that his-and-hers watches 1 selectivity is gathered group-flotation process compare its result and are on index:
Table 1
| ? | Productive rate | Al 2O 3 | SiO 2 | Alumina silica ratio | Al 2O 3The rate of recovery |
| Total concentrate | 72.00 | 64.00 | 7.99 | 8.00 | 80.14 |
| Mine tailing | 28.00 | 40.79 | 27.19 | 1.50 | 19.86 |
| Raw ore | 100.00 | 57.50 | 13.37 | 4.30 | 100.00 |
Table 2
| ? | Productive rate | Al 2O 3 | SiO 2 | Alumina silica ratio | Al 2O 3The rate of recovery |
| Total concentrate | 73.12 | 65.15 | 7.05 | 9.24 | 82.35 |
| Mine tailing | 26.88 | 37.99 | 34.36 | 1.11 | 17.65 |
| Raw ore | 100.00 | 57.85 | 14.39 | 4.02 | 100.00 |
Can find out that by table 1,2 flotation column-technological process of flotation device associating gathers group-flotation process than selectivity has certain advantage on index.
Claims (4)
1. the dressing process for desiliconizing of middle-low bauxite is characterized in that comprising the steps: with the middle-low bauxite to be raw ore, and raw ore is carried out classification behind the ore grinding, and symbol will require mineral aggregate classification once more; Sub-elect concentrate, remainder is roughly selected; The mineral aggregate of roughly selecting through flotation column is divided into two parts, carry out respectively selected with scan, selectedly floatingly select concentrate through flotation column, scan through flotation device and floatingly select mine tailing.
2. the dressing process for desiliconizing of middle-low bauxite according to claim 1 is characterized in that described selected returning with defective mineral aggregate that scan out roughly select step.
3. the dressing process for desiliconizing of middle-low bauxite according to claim 1 is characterized in that described flotation column is connected with tailings pump.
4. the dressing process for desiliconizing of middle-low bauxite according to claim 1 is characterized in that described flotation column is eddy flow one static microbubble floatation column, and flotation column adopts series system, is scanning part employing large flotation machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101097852A CN102755932A (en) | 2011-04-29 | 2011-04-29 | Beneficiation and desilicication method of low- and medium-grade bauxite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101097852A CN102755932A (en) | 2011-04-29 | 2011-04-29 | Beneficiation and desilicication method of low- and medium-grade bauxite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102755932A true CN102755932A (en) | 2012-10-31 |
Family
ID=47050720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101097852A Pending CN102755932A (en) | 2011-04-29 | 2011-04-29 | Beneficiation and desilicication method of low- and medium-grade bauxite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102755932A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025884A (en) * | 2022-05-07 | 2022-09-09 | 金川集团股份有限公司 | Machine-column combined separation process suitable for fine-grain copper-nickel sulfide ore separation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307937A (en) * | 1993-02-17 | 1994-05-03 | North Carolina State University | High throughput flotation column process |
| CN101058083A (en) * | 2007-06-01 | 2007-10-24 | 中国矿业大学 | Bauxite column type short flow-process separating technology and equipment |
| CN101703965A (en) * | 2009-10-16 | 2010-05-12 | 中国铝业股份有限公司 | Bauxite column-type floatation method |
-
2011
- 2011-04-29 CN CN2011101097852A patent/CN102755932A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307937A (en) * | 1993-02-17 | 1994-05-03 | North Carolina State University | High throughput flotation column process |
| CN101058083A (en) * | 2007-06-01 | 2007-10-24 | 中国矿业大学 | Bauxite column type short flow-process separating technology and equipment |
| CN101703965A (en) * | 2009-10-16 | 2010-05-12 | 中国铝业股份有限公司 | Bauxite column-type floatation method |
Non-Patent Citations (2)
| Title |
|---|
| 荣国强等: "旋流-静态微泡浮选柱液位自动控制系统设计", 《金属矿山》 * |
| 邵延海: "浮选柱气泡发生器充气性能及应用研究", 《中国优秀博硕士学位论文全文数据库（硕士）工程科技I辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025884A (en) * | 2022-05-07 | 2022-09-09 | 金川集团股份有限公司 | Machine-column combined separation process suitable for fine-grain copper-nickel sulfide ore separation |
| CN115025884B (en) * | 2022-05-07 | 2024-04-09 | 金川集团股份有限公司 | Machine-column joint selection process suitable for sorting fine-grained copper-nickel sulfide ores |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102671758B (en) | Direct and reverse flotation desliming process of collophanite | |
| CN103191828B (en) | Floating titanium collecting agent and low-grade ilmenite separating method using same | |
| CN109382213B (en) | Ore dressing method for gibbsite type bauxite | |
| CN103041912B (en) | Beneficiation method of low-grade ilmenite | |
| CN102218376B (en) | Method for high-efficiency floatation and separation of molybdenum and nickel and recovery of molybdenum and nickel from high carbon nickel-molybdenum ore to obtain molybdenum concentrate and nickel-molybdenum bulk concentrate | |
| CN103170409B (en) | The method for concentrating of a kind of copper sulfide copper and accompanying element thereof | |
| CN109718947A (en) | Microfine magnetic-red compound iron ore magnetic-floats beneficiation combined method method | |
| CN102302969A (en) | New stage dissociation-fractional selection flotation process | |
| CN104707734B (en) | Process for reducing collophanite flotation tailing grade | |
| CN101058083A (en) | Bauxite column type short flow-process separating technology and equipment | |
| CN103272684B (en) | Hematite stage grinding and magnetic-separation-flotation process | |
| CN104888947A (en) | Magnetic separation-centrifuge separation technology of micro-fine particle dissemination magnet-hematite mixed ore | |
| CN104888958A (en) | Micro-fine particle red magnetic mixed iron ore sorting process | |
| CN102716793A (en) | Method and system for producing ultra-pure powdered iron | |
| CN107282287A (en) | A kind of recycling water utilization method before copper-molybdenum Xuan Chang factories | |
| CN105880032B (en) | A kind of mid-low grade collophanite ore floats combined sorting method again | |
| CN109013048A (en) | A kind of raising zircon concentrate grade obtains the beneficiation method of rareearth enriching material simultaneously | |
| CN103721841B (en) | A kind of dressing process of ilmenite | |
| CN104971822A (en) | Molybdenum mineral granular solution optimization efficient flotation technology of copper sulphide and molybdenum ore | |
| CN103657836B (en) | A kind of be suitable for the ore dressing of micro fine particle magnetite stone put forward the energy-conservation ore-dressing technique of iron | |
| CN101972711B (en) | Flotation process for charcoal clay-containing pyrite | |
| CN104689901A (en) | Comprehensive recovery beneficiation method of tungsten/tin/zinc polymetallic ores | |
| CN102755932A (en) | Beneficiation and desilicication method of low- and medium-grade bauxite | |
| CN206304893U (en) | A kind of sorting unit of the red mixed type iron ore weakly magnetic tailingses of magnetic | |
| CN104722391A (en) | Method for recycling low-concentration and micro-fine-particle hematite floatation tailings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121031 |