CN103071589A - Device for extracting powdered iron from sea sand iron ore and technological method for extracting powdered iron - Google Patents
Device for extracting powdered iron from sea sand iron ore and technological method for extracting powdered iron Download PDFInfo
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- CN103071589A CN103071589A CN2013100460693A CN201310046069A CN103071589A CN 103071589 A CN103071589 A CN 103071589A CN 2013100460693 A CN2013100460693 A CN 2013100460693A CN 201310046069 A CN201310046069 A CN 201310046069A CN 103071589 A CN103071589 A CN 103071589A
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Abstract
The invention discloses a device for extracting powdered iron from sea sand iron ore and a technological method for extracting powdered iron. The device for extracting powdered iron from the sea sand iron ore comprises a movable ore dressing platform arranged on the sea and a hydraulic reamer, wherein a suction pump, a first level separating screen, a second level separating screen, a down-flow preconcentration magnetic separator, a down-flow rough concentration magnetic separator and a semi-counter-current fine concentration magnetic separator are arranged on the movable ore dressing platform; and the hydraulic reamer is arranged at the seabed in the depth of being less than or equal to 150 meters, and the hydraulic reamer is communicated with the suction pump through a suction pipeline. The technological method for extracting powdered iron comprises the steps of cutter suction mining carried out by the hydraulic reamer, first level screening, second level screening, down-flow preconcentration, down-flow rough concentration, semi-counter-current fine concentration and the like. With the device and the technological method, iron-containing deposit large sand blocks in seabed can be mined in a cutter suction manner, and are subjected to magnetic separation by magnetic separators of various types, the grade of the finally-concentrated powdered iron is more than 60%, the ore dressing grade is high, the ore dressing effect is ideal, the energy consumption is low, and the device and the technological method are applicable to extracting powdered iron from iron-containing sea sand in seabed.
Description
Technical field
The present invention relates to iron ore extractive technique field, relate in particular to the process that a kind of sea sand iron ore extracts iron fine powder device and extracts the iron fine powder.
Background technology
Along with the rapid growth of the mankind to various resource requirements, the shortage of resources problem is outstanding day by day.Abundant natural resources is arranged in the ocean, and the high speed development of current ocean science level makes countries in the world all accelerate the paces of marine resources development.The development and utilization of marine resources is later than land, is the emerging development field with strategic importance, has huge potentiality to be exploited.At present, external particularly every country in Southeast Asia has just begun to attempt to extract the iron fine powder from the sea sand of iron content, because of the magnetic plant that does not match with it, therefore still continue to use the process that iron is selected in the mine, land, dig out first the husky piece of bulk of seabed alluvial with chain Dou, with disintegrating machine the husky piece of bulk is carried out preliminary fragmentation again, all enter afterwards the ball mill ball milling, the gained ore pulp enters magnet separator magnetic and selects iron ore, this process is very coarse, because without Preliminary screening, this ore dressing mode makes the workload of ball mill large, performance requirement to ball mill is high, need large-scale ball mill, energy consumption is high, and production cost is high, and the iron fine powder grade of selecting is lower, is difficult to adapt to the requirement that sea sand selects iron.
Summary of the invention
First purpose of the present invention is: a kind of sea sand iron ore extraction iron fine powder device that is suitable for extracting the iron fine powder from the iron content sea sand of seabed is provided, and the iron fine powder grade so that raising is selected reduces beneficiation cost.
Second purpose of the present invention is: provide a kind of sea sand iron ore that utilizes to extract the process that iron fine powder device extracts the iron fine powder.
For realizing above-mentioned first purpose, technical scheme of the present invention is: the sea sand iron ore extracts iron fine powder device, comprise: afloat packaged type ore dressing platform is set, is provided with suction pump, one-level separating sieve, secondary separating sieve, following current preliminary election magnetic separator, following current magnetic rougher and half adverse current cleaning magnetic separator at described ore dressing platform; Also comprise and be positioned at the hydraulic pressure reamer that meter seabed, sea water advanced≤150 is driven by power set, described hydraulic pressure reamer comprises tool arm, one end of described tool arm is connected with the import of described suction pump by suction channel, the other end of described tool arm is provided with cutter head, the end face of described cutter head is provided with a plurality of cutters tooth, described cutter head is provided with the cutter head runner of hollow, and described tool arm is provided with the tool arm runner of hollow, and described tool arm runner is communicated with described cutter head runner and described suction channel.
As preferably, described cutter head runner is bell mouth shape, and described bell-mouthed small end is connected with the end of described tool arm runner.
As preferably, the periphery of described cutter head is provided with the cutter ring around a plurality of described cutters tooth.
As preferably, on described ore dressing platform, also be provided with ball mill and half adverse current magnetic rougher.
As preferably, described one-level separating sieve is drum sieve; Described secondary separating sieve is the round sieve that shakes.
For realizing above-mentioned second purpose, technical scheme of the present invention is: utilize the sea sand iron ore to extract the process that iron fine powder device extracts the iron fine powder, may further comprise the steps
(1) mining: the hydraulic pressure reamer of rotation stirs the seabed iron content sea sand of sea water advanced≤150 meter, gets the sea sand particle; Wherein, the sea sand particle of particle diameter≤25mm is aspirated by described suction pump from described cutter head runner, tool arm runner and suction channel together with seawater;
(2) one-level screening: will carry out the one-level screening by sea sand particle transport to the one-level separating sieve of the particle diameter≤25mm of suction pump suction, and get the sea sand particle of particle diameter≤15mm;
(3) secondary sieves: sea sand particle transport to the secondary separating sieve of the particle diameter≤15mm that obtains after one-level is sieved carries out the secondary screening, gets the sea sand particle of particle diameter≤5mm;
(4) preliminary election: sea sand particle transport to the following current preliminary election magnetic separator that secondary is sieved the particle diameter≤5mm that obtains carries out preliminary election, and the magnetic induction intensity of described following current preliminary election magnetic separator is 4500 ± 200Gs, gets the later half smart iron ore of preliminary election;
(5) roughly select: the later half smart iron ore of preliminary election is delivered to the following current magnetic rougher roughly selects, the magnetic induction intensity of described following current magnetic rougher is 4000 ± 200Gs, must roughly select later half smart iron ore;
(6) selected: will roughly select later half smart iron ore and be delivered to half adverse current cleaning magnetic separator and carry out selectedly, the magnetic induction intensity of described half adverse current cleaning magnetic separator is 1800 ± 200Gs, gets the iron fine powder.
As preferably, on described ore dressing platform, also be provided with ball mill and half adverse current magnetic rougher, in the described secondary screening step, sea sand particle transport to the described ball mill of particle diameter＞5mm is carried out ball milling, with behind the ball milling＞100 purpose sea sand particle transport roughly select to described half adverse current magnetic rougher, the magnetic induction intensity of described half adverse current magnetic rougher is 3500 ± 200Gs, must roughly select later half smart iron ore; Afterwards, carry out step (6) selected.
Owing to having adopted technique scheme, when utilizing sea sand iron ore of the present invention to extract iron fine powder device to extract the iron fine powder, the hydraulic pressure reamer of rotation stirs the seabed iron content alluvial Da Sha piece of sea water advanced≤150 meter, makes it become the sea sand particle of fritter; Adjust the suction force of suction pump on the ore dressing platform, only make the sea sand particle of particle diameter≤25mm and seawater together be sucked pump and aspirate away; And the sea sand of particle diameter＞25mm is directly abandoned, and producing proves that this part sea sand ratio of concentration is large, does not substantially have ore dressing to be worth, and has namely carried out preliminary sorting in the mining step, can improve follow-up ore dressing grade, and reduces the workload of ball mill.By one-level screening, secondary screening, can with the screening of the foreign material such as larger stone, weeds, before ore dressing, remove.The sea sand particle of particle diameter≤5mm is transported to following current preliminary election magnetic separator and carries out preliminary election, the later half smart iron ore of preliminary election is delivered to the following current magnetic rougher again and roughly selects, preliminary election and roughly select and all adopt high field intensity downstream-type magnetic separator, beneficiating efficiency is high, and the grade of half smart iron ore reaches more than 30%.Roughly select later half smart iron ore and be delivered to half adverse current cleaning magnetic separator and carry out selectedly, get the iron fine powder.Because the ore pulp of semi counter-stream magnetic separator turns to half identical to Inbound with cylinder, half is opposite, and is different from downstream-type, and ore pulp has turned individual circle in groove, and ore pulp is broken up water and is washed into loose shape, can prevent from being mingled with, and improves the purity of iron ore concentrate.
The sea sand particle transport of 5mm＜particle diameter≤15mm to ball mill carries out ball milling, behind the ball milling＞100 purpose sea sand particle transport to half adverse current magnetic roughers roughly select, roughly selecting later half smart iron ore enters half adverse current cleaning magnetic separator again and carries out selected, fully extract the iron fine powder, the half smart iron ore grade that this step makes reaches more than 40%.
The present invention adopts strand suction mining mode to the seabed iron content alluvial Da Sha piece of sea water advanced≤150 meter, the magnetic separator of follow-up outfit various ways carries out magnetic separation, producing proves that the iron fine powder grade of finally selecting is more than 60%, ore dressing is satisfactory for result, is suitable for extracting from the iron content sea sand of seabed the iron fine powder.
Description of drawings
Fig. 1 is the process schematic flow sheet of extraction iron fine powder of the present invention;
Fig. 2 is that sea sand iron ore of the present invention extracts hydraulic pressure reamer and the suction pump schematic diagram in the iron fine powder device;
Among the figure: 1-ore dressing platform; The 2-suction pump; The 3-suction channel; 4-hydraulic pressure reamer; The 41-tool arm; 411-tool arm runner; The 42-cutter head; 421-cutter head runner; The 43-cutter ring; The 44-cutter tooth.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is made further non-limitative illustration.
With reference to shown in Figure 2, the sea sand iron ore of the embodiment of the invention extracts iron fine powder device and comprises: be arranged on the packaged type ore dressing platform 1 on the COASTAL SURFACE, when needs ore dressing platform 1 moves, can draw it by tractor tug and move.Be provided with suction pump 2, one-level separating sieve, secondary separating sieve, following current preliminary election magnetic separator, following current magnetic rougher, ball mill, half adverse current magnetic rougher and half adverse current cleaning magnetic separator (each separating sieve, each magnetic separator and ball mill all specifically are not shown on the ore dressing platform) at ore dressing platform 1; The seabed that is positioned at sea water advanced≤150 meter is provided with the hydraulic pressure reamer 4 that is driven by power set, hydraulic pressure reamer 4 comprises tool arm 41, tool arm 41 is provided with the tool arm runner 411 of hollow, one end of tool arm 41 is connected with the import of suction pump 2 by suction channel 3, the other end of tool arm 41 is provided with cutter head 42, end face at cutter head 42 is provided with a plurality of cutters tooth 44, be provided with cutter ring 43 around a plurality of cutters tooth 44 in the periphery of cutter head 42, cutter head 42 is provided with the cutter head runner 421 of hollow, cutter head runner 421 is bell mouth shape, bell-mouthed small end is connected with the end of tool arm runner 411, and tool arm runner 411 is communicated with cutter head runner 421 and suction channel 3.
Wherein, the one-level separating sieve of the embodiment of the invention adopts drum sieve; The secondary separating sieve adopts the round sieve that shakes.
As shown in Figure 1, utilize the process of the sea sand iron ore extraction iron fine powder device extraction iron fine powder of the embodiment of the invention may further comprise the steps:
(1) mining: thus power set drive the alluvial Da Sha piece that the seabed iron content of sea water advanced≤150 meter is stirred in 4 rotations of hydraulic pressure reamer, obtain the sea sand particle of fritter; Adjust the suction force of suction pump 2, only make the sea sand particle of particle diameter≤25mm be sucked pump 2 suctions together with seawater from cutter head runner 421, tool arm runner 411 and suction channel 3 and walk.And the sea sand particle of particle diameter＞25mm is directly abandoned in the seabed, and producing proves that this part sea sand ratio of concentration is large, does not substantially have ore dressing to be worth, namely carried out preliminary sorting in the mining step, can improve follow-up ore dressing grade, and reduce the workload of ball mill, reduce energy consumption.
(2) one-level screening: will be that drum sieve carries out the one-level screening by sea sand particle transport to the one-level separating sieve of the particle diameter≤25mm of suction pump 2 suctions, general＞15mm than the foreign material such as ratchel, weeds screening removal, get the sea sand particle of particle diameter≤15mm.
(3) secondary screening: with the sea sand particle transport of particle diameter≤15mm of obtaining after the one-level screening to the secondary separating sieve namely the circle sieve that shakes carry out the secondary screening, get the sea sand particle of particle diameter≤5mm.
(4) preliminary election: sea sand particle transport to the following current preliminary election magnetic separator that secondary is sieved the particle diameter≤5mm that obtains carries out preliminary election, and the magnetic induction intensity of this following current preliminary election magnetic separator is 4500 ± 200Gs, gets the later half smart iron ore of preliminary election.
(5) roughly select: the later half smart iron ore of preliminary election is delivered to the following current magnetic rougher roughly selects, the magnetic induction intensity of this following current magnetic rougher is 4000 ± 200Gs, must roughly select later half smart iron ore.
Preliminary election and roughly select and all adopt high field intensity downstream-type magnetic separator, the beneficiating efficiency of half smart iron ore is high, of high grade, produces proof and roughly selects later half smart iron ore grade and reach more than 30%.
(6) selected: will roughly select later half smart iron ore and be delivered to half adverse current cleaning magnetic separator and carry out selectedly, the magnetic induction intensity of this half adverse current cleaning magnetic separator is 1800 ± 200Gs, gets the iron fine powder.
In order fully to extract the iron fine powder, sea sand particle transport to the ball mill that secondary is sieved 5mm＜particle diameter of sifting out in the step≤15mm carries out ball milling, behind the ball milling＞100 purpose sea sand particle transport to half adverse current magnetic roughers roughly select, roughly select later half smart iron ore and enter again half adverse current cleaning magnetic separator and carry out selectedly, produce the half smart iron ore grade that this step of proof makes and reach more than 40%.Because the sea sand particle has namely carried out preliminary sorting in the mining step, and the foreign material of screening step remove, and greatly reduce the workload of ball mill, have reduced energy consumption, select the requirement that can fulfil assignment of the small-sized wet-type ball mill of diameter below 1.5 meters.
The present invention adopts strand suction mining mode to the seabed iron content alluvial Da Sha piece of sea water advanced≤150 meter, the magnetic separator of follow-up outfit various ways carries out magnetic separation, producing proves that the iron fine powder grade of finally selecting is more than 60%, ore dressing is satisfactory for result, is suitable for extracting from the iron content sea sand of seabed the iron fine powder.
Structure and operation principle thereof that the drum sieve of addressing in the embodiment of the invention, the round sieve that shakes, ball mill, downstream-type magnetic separator, semi counter-stream magnetic separator and power set drive the hydraulic pressure reamer are known prior art for a person skilled in the art, and in this not go into detail.
The above only is giving an example of better embodiment of the present invention, and the part of wherein not addressing in detail is those of ordinary skills' common practise.Protection scope of the present invention is as the criterion with the content of claim, and any equivalent transformation that carries out based on technology enlightenment of the present invention is also within protection scope of the present invention.
Claims (7)
1. the sea sand iron ore extracts iron fine powder device, it is characterized in that, comprising:
Afloat packaged type ore dressing platform is set, is provided with suction pump, one-level separating sieve, secondary separating sieve, following current preliminary election magnetic separator, following current magnetic rougher and half adverse current cleaning magnetic separator at described ore dressing platform; Also comprise
Be positioned at the hydraulic pressure reamer that meter seabed, sea water advanced≤150 is driven by power set, described hydraulic pressure reamer comprises tool arm, one end of described tool arm is connected with the import of described suction pump by suction channel, the other end of described tool arm is provided with cutter head, the end face of described cutter head is provided with a plurality of cutters tooth, described cutter head is provided with the cutter head runner of hollow, and described tool arm is provided with the tool arm runner of hollow, and described tool arm runner is communicated with described cutter head runner and described suction channel.
2. sea sand iron ore as claimed in claim 1 extracts iron fine powder device, it is characterized in that, described cutter head runner is bell mouth shape, and described bell-mouthed small end is connected with the end of described tool arm runner.
3. sea sand iron ore as claimed in claim 2 extracts iron fine powder device, it is characterized in that, the periphery of described cutter head is provided with the cutter ring around a plurality of described cutters tooth.
4. sea sand iron ore as claimed in claim 1 extracts iron fine powder device, it is characterized in that, also is provided with ball mill and half adverse current magnetic rougher on described ore dressing platform.
5. extract iron fine powder device such as each described sea sand iron ore of claim 1-4, it is characterized in that: described one-level separating sieve is drum sieve; Described secondary separating sieve is the round sieve that shakes.
6. utilize sea sand iron ore claimed in claim 1 to extract the process that iron fine powder device extracts the iron fine powder, it is characterized in that, may further comprise the steps
(1) mining: the hydraulic pressure reamer of rotation stirs the seabed iron content sea sand of sea water advanced≤150 meter, gets the sea sand particle; Wherein, the sea sand particle of particle diameter≤25mm is aspirated by described suction pump from described cutter head runner, tool arm runner and suction channel together with seawater;
(2) one-level screening: will carry out the one-level screening by sea sand particle transport to the one-level separating sieve of the particle diameter≤25mm of suction pump suction, and get the sea sand particle of particle diameter≤15mm;
(3) secondary sieves: sea sand particle transport to the secondary separating sieve of the particle diameter≤15mm that obtains after one-level is sieved carries out the secondary screening, gets the sea sand particle of particle diameter≤5mm;
(4) preliminary election: sea sand particle transport to the following current preliminary election magnetic separator that secondary is sieved the particle diameter≤5mm that obtains carries out preliminary election, and the magnetic induction intensity of described following current preliminary election magnetic separator is 4500 ± 200Gs, gets the later half smart iron ore of preliminary election;
(5) roughly select: the later half smart iron ore of preliminary election is delivered to the following current magnetic rougher roughly selects, the magnetic induction intensity of described following current magnetic rougher is 4000 ± 200Gs, must roughly select later half smart iron ore;
(6) selected: will roughly select later half smart iron ore and be delivered to half adverse current cleaning magnetic separator and carry out selectedly, the magnetic induction intensity of described half adverse current cleaning magnetic separator is 1800 ± 200Gs, gets the iron fine powder.
7. the process of extraction iron fine powder as claimed in claim 6, it is characterized in that: on described ore dressing platform, also be provided with ball mill and half adverse current magnetic rougher, in the described secondary screening step, sea sand particle transport to the described ball mill of particle diameter＞5mm is carried out ball milling, with behind the ball milling＞100 purpose sea sand particle transport roughly select to described half adverse current magnetic rougher, the magnetic induction intensity of described half adverse current magnetic rougher is 3500 ± 200Gs, must roughly select later half smart iron ore; Afterwards, carry out step (6) selected.
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| CN201310046069.3A CN103071589B (en) | 2013-02-05 | 2013-02-05 | Sea sand iron ore extracts Iron concentrate device and extracts the process of Iron concentrate |
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| CN201310046069.3A CN103071589B (en) | 2013-02-05 | 2013-02-05 | Sea sand iron ore extracts Iron concentrate device and extracts the process of Iron concentrate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833987A (en) * | 2016-05-27 | 2016-08-10 | 泗水惠丰农业开发工程有限公司 | Shaping technology in mixed mineral aggregate screen |
| CN105935629A (en) * | 2016-07-12 | 2016-09-14 | 陈勇 | In-water magnetite ore-dressing device with increased reserved one-time turnover large particle ore capacity |
| CN106179738A (en) * | 2016-08-26 | 2016-12-07 | 中冶北方（大连）工程技术有限公司 | The ore-sorting system of a kind of iron content sea sand and ore-dressing technique |
| CN108480038A (en) * | 2018-02-09 | 2018-09-04 | 广东长亨石业有限公司 | A kind of technique of silt recycling |
| CN108993768A (en) * | 2018-08-23 | 2018-12-14 | 鹤庆北衙矿业有限公司 | The recovery system of magnetic iron ore is recycled in a kind of brown iron ore concentrate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118754U (en) * | 1992-01-03 | 1992-10-14 | 王水 | Dredger ship for shipping |
| CN1087558A (en) * | 1993-04-01 | 1994-06-08 | 李勇军 | Micro mist vibration magnetic selection method and device |
| US5944986A (en) * | 1995-09-19 | 1999-08-31 | Hitachi, Ltd. | Liquid purification apparatus |
| CN2635213Y (en) * | 2003-04-12 | 2004-08-25 | 李明鑫 | Under water magnetic separator |
| CN2780334Y (en) * | 2005-04-21 | 2006-05-17 | 王涛 | Fractional screen of drg type magnetic separator |
| US20110139722A1 (en) * | 2008-05-13 | 2011-06-16 | Simonson Roger M | Pipeline magnetic separator system |
-
2013
- 2013-02-05 CN CN201310046069.3A patent/CN103071589B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118754U (en) * | 1992-01-03 | 1992-10-14 | 王水 | Dredger ship for shipping |
| CN1087558A (en) * | 1993-04-01 | 1994-06-08 | 李勇军 | Micro mist vibration magnetic selection method and device |
| US5944986A (en) * | 1995-09-19 | 1999-08-31 | Hitachi, Ltd. | Liquid purification apparatus |
| CN2635213Y (en) * | 2003-04-12 | 2004-08-25 | 李明鑫 | Under water magnetic separator |
| CN2780334Y (en) * | 2005-04-21 | 2006-05-17 | 王涛 | Fractional screen of drg type magnetic separator |
| US20110139722A1 (en) * | 2008-05-13 | 2011-06-16 | Simonson Roger M | Pipeline magnetic separator system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833987A (en) * | 2016-05-27 | 2016-08-10 | 泗水惠丰农业开发工程有限公司 | Shaping technology in mixed mineral aggregate screen |
| CN105935629A (en) * | 2016-07-12 | 2016-09-14 | 陈勇 | In-water magnetite ore-dressing device with increased reserved one-time turnover large particle ore capacity |
| CN106179738A (en) * | 2016-08-26 | 2016-12-07 | 中冶北方（大连）工程技术有限公司 | The ore-sorting system of a kind of iron content sea sand and ore-dressing technique |
| CN108480038A (en) * | 2018-02-09 | 2018-09-04 | 广东长亨石业有限公司 | A kind of technique of silt recycling |
| CN108993768A (en) * | 2018-08-23 | 2018-12-14 | 鹤庆北衙矿业有限公司 | The recovery system of magnetic iron ore is recycled in a kind of brown iron ore concentrate |
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