CN204911756U - Hierarchical ore dressing system of water -saving magnetic iron ore - Google Patents
Hierarchical ore dressing system of water -saving magnetic iron ore Download PDFInfo
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- CN204911756U CN204911756U CN201520639532.XU CN201520639532U CN204911756U CN 204911756 U CN204911756 U CN 204911756U CN 201520639532 U CN201520639532 U CN 201520639532U CN 204911756 U CN204911756 U CN 204911756U
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Abstract
The utility model provides a hierarchical ore dressing system of water -saving magnetic iron ore, has solved because of low difficult the recovery and drainage quality of water technical problem not up to standard of column type magnetic separation equipment tailing concentration through increase dense dewatering equipment and secondary magnetic separation and grinding device in the system, and the technical scheme of adoption is: in the system including column type magnetic separation equipment, with column type magnetic separation equipment bottom the concentrate discharge port be connected concentrate dewatering equipment to and supporting feed equipment and water supply installation, its key is: set up the concentration dewatering equipment of being connected with column type magnetic separation equipment upper portion overflow mouth in the system, the outlet of concentration dewatering equipment is connected to column type magnetic separation equipment's water inlet, tailing outlet port with the help of the pipeline feedback and is set up second grade magnetic separation equipment and grinding device, and grinding device's play mine mouth and column type magnetic separation equipment's material inlet are connected. The utility model discloses tailing pulp concentration after the concentration of high -efficient concentration dewatering equipment can reach more than 20%, and the totality can economize on water 50% to 90%, practices thrift the equipment running cost more than 60%.
Description
Technical field
The utility model relates to a kind of magnetite separation system, belongs to magnetic mineral sorting technology field, especially a kind of water-saving magnetic iron ore classification ore-sorting system.
Background technology
Pillar electromagnetism, gravitational separation equipment utilize permanent magnetism, electromagnetic method to produce and sort magnetic field, and mineral to be selected to enter to ore deposit through its upper side and sort bucket, and outside feedwater feeds rear up by sorting bottom; Weak magnetic and non magnetic ore are separated into mine tailing and overflow under the effect of ascending water on top, magnetic mineral forms concentrate in device bottom under magnetic fields.This kind equipment comprises magnetic accumulating machine, column magnetic separator, elutriation magnetic separator, magnetic suspension selecting machine, grade elevator, magnetic flotation post etc., has higher requirements to feed pressure and quality, (pressure is greater than 0.25MP/ water quality 300PPM); Water consumption large (dry mining water 3 tons-5 tons per ton), and the water of more than 90% enters mine tailing by its upper side overflow launder.Even cannot promote the use of at drought and water-scarce area pillar electromagnetism, gravitational separation equipment.In the past, when selecting factory to design, this kind of pillar electromagnetism, gravity treatment optional equipment are equal to general magnetic separator, its mine tailing enters mill tailings treatment system.Because of its tailings concentration very low (about 2-5%), directly enter mill tailings treatment system and can increase considerably system loading, improve processing cost.Containing a small amount of weak magnetic in this part mine tailing, gangue mineral and part lean intergrowth, for reclaiming the magnetic mineral in this part mine tailing, the concentrated magnetic plant needing to configure high throughput is calculated according to pulp volume gauge, on the one hand due to pending tailings concentration very low (about 2-5%), directly enter mill tailings treatment system and can increase considerably system loading, exceed more than 50% sometimes, cause tailings glass system and water system paralysis, to such an extent as to have to transform, add tailings glass cost, this part tailing water contains a small amount of weak magnetic, non magnetic ore and part lean intergrowth, for reclaiming the magnetic mineral in this part tailing water, according to the concentrated magnetic separator of liquid bulk accumulated amount configuration high throughput, on the one hand because its concentration very low (about 2-5%) causes magnetic mineral to be difficult to reclaim, on the other hand because containing weak magnetic in concentrated magnetic separator tailing water, non magnetic ore causes water quality not up to standard, pillar electromagnetism, gravitational separation equipment cannot directly use, mill tailings treatment system can only be entered, therefore be necessary to make improvement to existing magnetic separation system.
Summary of the invention
The utility model provides a kind of water-saving magnetic iron ore classification ore-sorting system, by increasing dense dehydration equipment and secondary magnetic separation and milling apparatus in systems in which, solving and not easily reclaiming because columnar magnetic optional equipment tailings concentration is low and draining water quality technical problem not up to standard.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of water-saving magnetic iron ore classification ore-sorting system, system comprises columnar magnetic optional equipment, is connected essence mine dehydration equipment with the concentrate outlet bottom columnar magnetic optional equipment, and supporting feeding device and water work, its key is: set up the thickening equipment be connected with columnar magnetic optional equipment top overfall in described system, the discharge outlet of thickening equipment is fed back to the water inlet of columnar magnetic optional equipment by pipeline.
The beneficial effects of the utility model are: the utility model directly uses the low concentration tailing water of efficient concentration dehydration equipment process pillar electromagnetism, gravitational separation equipment, Tailings Slurry concentration after efficient concentration dehydration equipment concentrates can reach more than 20%, volume reduces more than 70%, can directly throw useless, also common magnetic separator can be used can to complete magnetic mineral recovery and enter regrinding and reconcentration technique, the non magnetic ore impurity in mine tailing directly throws tail by common magnetic separator.The overflow water of efficient concentration dehydration equipment directly uses as pillar electromagnetism, gravitational separation equipment water circulation, forms the self-circulation system closed, totally can economize on water 50% to 90%, saves equipment operating cost more than 60%.Pillar electromagnetism, the closed operation of gravitational separation equipment water self-circulation system in addition adds new water or add flocculant all can not cause and select factory water system disorderly.
Below in conjunction with accompanying drawing, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present utility model.
In accompanying drawing, 1 represents columnar magnetic optional equipment, and 2 represent essence mine dehydration equipment, and 3 represent thickening equipment, and 4 represent secondary magnetic separation equipment, and 5 represent milling apparatus.
Detailed description of the invention
A kind of water-saving magnetic iron ore classification ore-sorting system, the essence mine dehydration equipment 2 that system comprises columnar magnetic optional equipment 1, is connected with the concentrate outlet bottom columnar magnetic optional equipment, and supporting feeding device and water work, its key is: set up the thickening equipment 3 be connected with columnar magnetic optional equipment top overfall in described system, the discharge outlet of thickening equipment is fed back to the water inlet of columnar magnetic optional equipment by pipeline.
The tailing outlet port connection of thickening equipment 3 arranges secondary magnetic separation equipment 4 and milling apparatus 5.
The mine mouth that goes out of milling apparatus is connected with the material inlet of columnar magnetic optional equipment.
Described columnar magnetic optional equipment is magnetic accumulating machine, in column magnetic separator, elutriation magnetic separator, magnetic suspension selecting machine, grade elevator, magnetic flotation post one or both and combine above.
Described essence mine dehydration equipment is filter or filter press.
Described thickening equipment is the one in lamella thickener, inclined tube concentrator, hydrocyclone, thickening pond.
Described milling apparatus is ball mill or tower grinding machine.
Described secondary magnetic separation equipment is the one in mine tailing salvaging machine, concentrated magnetic separator.
In the utility model feeding device will roughly select magnetic concentrate as give ore deposit, carry out selected by electromagnetism, gravitational separation equipment to it, as output high-grade qualified concentrate containings such as magnetic accumulating machine, column magnetic separator, elutriation magnetic separator, magnetic suspension selecting machine, grade elevator, magnetic flotation posts, concentrate grade promotes amplitude 2%-15%; Second step, electromagnetism, gravitational separation equipment upper isopipe tailings concentration 2%-5% directly feed efficient concentration dehydration equipment, and after dehydration, bottom can obtain the final concentrated mine tailing of more than 20%; Overflow portion can obtain the recirculated water being applicable to requiring and directly return to electromagnetism gravitational separation equipment as feedwater or as industrial water; 3rd step, efficient concentration device bottom sand setting concentration more than 20% directly can be thrown after tail also can be scanned by spoil reclaming magnetic plant and be entered regrinding and reconcentration technique.
Particularly, process route of the present utility model is: through primary election, and concentration is that 10-30% ore pulp sends into pillar magnetic plant, through the sorting of cylindrical magnetic optional equipment, obtain concentrate and the 1-10% mine tailing of 30-60%, the concentrate of 30-60% obtains final products through filter or filter press dehydration; The 1-10% mine tailing overflowed is sent into efficient concentration dehydration equipment and carries out Separation of Solid and Liquid, Separation of Water that 50-90% can reuse can be obtained directly return and use as feedwater to magnetic separator, the underflow of efficient concentration dehydration equipment according to circumstances, or directly throw tail, or reclaim with spoil reclaming magnetic plant and enter tailing regrind and select technique again.
The utility model: the low concentration mine tailing (concentration 2%-5%) 1), directly using efficient concentration device processes pillar electromagnetism, gravitational separation equipment, after efficient concentration equipment is concentrated, concentration reaches more than 20%, volume reduces more than 70%, both can directly throw useless, also can use select again magnetic plant complete useful magnetic mineral reclaim enter regrinding and reconcentration technique.2) gangue mineral, in mine tailing is by selecting magnetic plant directly to throw tail again; 3), the overflow water of efficient concentration dehydration equipment directly returns electromagnetism, gravitational separation equipment as cycling use of water, the self-circulation system that formation is closed.
Claims (8)
1. a water-saving magnetic iron ore classification ore-sorting system, the essence mine dehydration equipment (2) that system comprises columnar magnetic optional equipment (1), is connected with the concentrate outlet of columnar magnetic optional equipment (1) bottom, and supporting feeding device and water work, it is characterized in that: set up the thickening equipment (3) be connected with columnar magnetic optional equipment top overfall in described system, the discharge outlet of thickening equipment (3) is fed back to the water inlet of columnar magnetic optional equipment by pipeline.
2. one according to claim 1 water-saving magnetic iron ore classification ore-sorting system, is characterized in that: the tailing outlet port connection of thickening equipment (3) bottom arranges secondary magnetic separation equipment (4) and milling apparatus (5).
3. one according to claim 2 water-saving magnetic iron ore classification ore-sorting system, is characterized in that: the mine mouth that goes out of milling apparatus is connected with the material inlet of columnar magnetic optional equipment.
4. one according to claim 3 water-saving magnetic iron ore classification ore-sorting system, is characterized in that: described columnar magnetic optional equipment is magnetic accumulating machine, in column magnetic separator, elutriation magnetic separator, magnetic suspension selecting machine, grade elevator, magnetic flotation post one or both and combine above.
5. one according to claim 1 water-saving magnetic iron ore classification ore-sorting system, is characterized in that: described essence mine dehydration equipment is filter or filter press.
6. one according to claim 1 water-saving magnetic iron ore classification ore-sorting system, is characterized in that: described thickening equipment is the one in lamella thickener, inclined tube concentrator, hydrocyclone, thickening pond.
7. one according to claim 3 water-saving magnetic iron ore classification ore-sorting system, is characterized in that: described milling apparatus is ball mill or tower grinding machine.
8. one according to claim 2 water-saving magnetic iron ore classification ore-sorting system, is characterized in that: described secondary magnetic separation equipment is the one in mine tailing salvaging machine, concentrated magnetic separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639532.XU CN204911756U (en) | 2015-08-24 | 2015-08-24 | Hierarchical ore dressing system of water -saving magnetic iron ore |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520639532.XU CN204911756U (en) | 2015-08-24 | 2015-08-24 | Hierarchical ore dressing system of water -saving magnetic iron ore |
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| CN204911756U true CN204911756U (en) | 2015-12-30 |
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| CN201520639532.XU Active CN204911756U (en) | 2015-08-24 | 2015-08-24 | Hierarchical ore dressing system of water -saving magnetic iron ore |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107694745A (en) * | 2017-11-15 | 2018-02-16 | 中冶北方（大连）工程技术有限公司 | A kind of elutriation magnetic separator tailing treatment technology |
| CN108816497A (en) * | 2018-06-15 | 2018-11-16 | 魏建民 | Magnetite beneficiation process |
| CN111632753A (en) * | 2019-12-04 | 2020-09-08 | 石家庄金垦科技有限公司 | Elutriation magnetic separator |
-
2015
- 2015-08-24 CN CN201520639532.XU patent/CN204911756U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107694745A (en) * | 2017-11-15 | 2018-02-16 | 中冶北方（大连）工程技术有限公司 | A kind of elutriation magnetic separator tailing treatment technology |
| CN108816497A (en) * | 2018-06-15 | 2018-11-16 | 魏建民 | Magnetite beneficiation process |
| CN108816497B (en) * | 2018-06-15 | 2020-05-19 | 魏建民 | Magnetite beneficiation process |
| CN111632753A (en) * | 2019-12-04 | 2020-09-08 | 石家庄金垦科技有限公司 | Elutriation magnetic separator |
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