CN103071589B - Sea sand iron ore extracts Iron concentrate device and extracts the process of Iron concentrate - Google Patents
Sea sand iron ore extracts Iron concentrate device and extracts the process of Iron concentrate Download PDFInfo
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- CN103071589B CN103071589B CN201310046069.3A CN201310046069A CN103071589B CN 103071589 B CN103071589 B CN 103071589B CN 201310046069 A CN201310046069 A CN 201310046069A CN 103071589 B CN103071589 B CN 103071589B
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Abstract
The invention discloses the process that a kind of sea sand iron ore extracts Iron concentrate device and extracts Iron concentrate, sea sand iron ore extracts Iron concentrate device and comprises: arrange afloat packaged type ore dressing platform, ore dressing platform 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; Be located at the hydraulic pressure reamer in meter seabed, the degree of depth≤150, hydraulic pressure reamer is communicated with suction pump by suction channel.The process extracting Iron concentrate comprises: the steps such as hydraulic pressure reamer twists suction mining, one-level screening, secondary screening, following current preliminary election, following current is roughly selected, half adverse current is selected.The present invention adopts strand suction mining mode to seabed iron content alluvial great Sha block, and the magnetic separator of follow-up outfit various ways carries out magnetic separation, and the Iron concentrate grade finally selected is more than 60%, ore dressing is of high grade, ore dressing is satisfactory for result, and energy consumption is low, is suitable for extracting Iron concentrate from the iron content sea sand of seabed.
Description
Technical field
The present invention relates to iron ore extractive technique field, particularly relate to the process that a kind of sea sand iron ore extracts Iron concentrate device and extracts Iron concentrate.
Background technology
Along with the mankind are to the swift and violent growth of various resource requirement, shortage of resources problem is outstanding day by day.There is abundant natural resources in ocean, the high speed development of current ocean science level, make 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 started to attempt extracting Iron concentrate from the sea sand of iron content, because of the magnetic plant do not matched with it, therefore the process that iron is selected in mine, land is still continued to use, the husky block of bulk of seabed alluvial is first dug out with chain Dou, with disintegrating machine, preliminary fragmentation is carried out to the husky block of bulk again, all enter ball mill ball milling afterwards, gained ore pulp enters magnet separator magnetic and selects iron ore, this process is very coarse, due to without Preliminary screening, this ore dressing mode makes the workload of ball mill large, high to the performance requirement of ball mill, need large-scale ball mill, energy consumption is high, production cost is high, and the Iron concentrate grade selected is lower, be difficult to adapt to the requirement that sea sand selects iron.
Summary of the invention
First object of the present invention is: provide a kind of sea sand iron ore being suitable for extracting Iron concentrate from the iron content sea sand of seabed to extract Iron concentrate device, to improve the Iron concentrate grade selected, reduce beneficiation cost.
Second object of the present invention is: provide a kind of process utilizing sea sand iron ore to extract Iron concentrate device extraction Iron concentrate.
For realizing above-mentioned first object, technical scheme of the present invention is: sea sand iron ore extracts Iron concentrate device, comprise: afloat packaged type ore dressing platform is set, described ore dressing platform 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; Also comprise the hydraulic pressure reamer being positioned at meter seabed, sea water advanced≤150 and being driven by power set, described hydraulic pressure reamer comprises tool arm, one end of described tool arm is connected by the import of suction channel with described suction pump, the other end of described tool arm is provided with cutter head, the end face of described cutter head is provided with multiple cutter 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 multiple described cutter tooth.
As preferably, described ore dressing platform is also 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 object, technical scheme of the present invention is: utilize sea sand iron ore to extract the process of Iron concentrate device extraction Iron concentrate, comprise the following steps
(1) dig up mine: the hydraulic pressure reamer of rotation stirs the seabed iron content sea sand of sea water advanced≤150 meter, obtains 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: the sea sand particle transport of the particle diameter≤25mm aspirated by suction pump is carried out one-level screening to one-level separating sieve, obtains the sea sand particle of particle diameter≤15mm;
(3) secondary screening: the sea sand particle transport of the particle diameter≤15mm obtained after one-level being sieved carries out secondary screening to secondary separating sieve, obtains the sea sand particle of particle diameter≤5mm;
(4) preliminary election: the sea sand particle transport of secondary being sieved the particle diameter≤5mm obtained carries out preliminary election to following current preliminary election magnetic separator, the magnetic induction intensity of described following current preliminary election magnetic separator is 4500 ± 200Gs, obtains the later half smart iron ore of preliminary election;
(5) roughly select: later half for preliminary election smart iron ore is delivered to following current magnetic rougher and 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 selected, the magnetic induction intensity of described half adverse current cleaning magnetic separator is 1800 ± 200Gs, obtains Iron concentrate.
As preferably, described ore dressing platform is also provided with ball mill and half adverse current magnetic rougher, in described secondary screening step, the sea sand particle transport of particle diameter > 5mm to described ball mill is carried out ball milling, > after ball milling 100 object sea sand particle transport to described half adverse current magnetic rougher is roughly selected, the magnetic induction intensity of described half adverse current magnetic rougher is 3500 ± 200Gs, must roughly select later half smart iron ore; Afterwards, step (6) is carried out selected.
Owing to have employed technique scheme, utilize sea sand iron ore of the present invention to extract Iron concentrate device when extracting Iron concentrate, the hydraulic pressure reamer of rotation stirs the seabed iron content alluvial great Sha block of sea water advanced≤150 meter, becomes the sea sand particle of fritter; The suction force of suction pump on adjustment ore dressing platform, only makes the sea sand particle of particle diameter≤25mm and seawater together be sucked pump and aspirates; And the sea sand of particle diameter > 25mm is directly abandoned, produce and prove that this part sea sand ratio of concentration is large, substantially do not have ore dressing to be worth, namely carried out preliminary sorting in mining step, follow-up ore dressing grade can have been improved, and reduce the workload of ball mill.By one-level screening, secondary screening, by foreign material screenings such as larger stone, weeds, can remove before ore dressing.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 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 to be delivered to half adverse current cleaning magnetic separator and to carry out selected, obtain Iron concentrate.Ore pulp due to semi counter-stream magnetic separator feeds direction and turns to half identical with cylinder, and half is contrary, and different from downstream-type, 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 carries out ball milling to ball mill, after ball milling, > 100 object sea sand particle transport to half adverse current magnetic rougher is roughly selected, roughly select later half smart iron ore to enter half adverse current cleaning magnetic separator again and carry out selected, abundant extraction Iron concentrate, the half smart iron ore grade that this step obtains reaches more than 40%.
The seabed iron content alluvial great Sha block of the present invention to sea water advanced≤150 meter adopts strand suction mining mode, the magnetic separator of follow-up outfit various ways carries out magnetic separation, produce and prove that the Iron concentrate grade finally selected is more than 60%, ore dressing is satisfactory for result, is suitable for extracting Iron concentrate from the iron content sea sand of seabed.
Accompanying drawing explanation
Fig. 1 is the process schematic flow sheet of extraction Iron concentrate of the present invention;
Fig. 2 is that sea sand iron ore of the present invention extracts hydraulic pressure reamer in Iron concentrate device and suction pump schematic diagram;
In figure: 1-ore dressing platform; 2-suction pump; 3-suction channel; 4-hydraulic pressure reamer; 41-tool arm; 411-tool arm runner; 42-cutter head; 421-cutter head runner; 43-cutter ring; 44-cutter tooth.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described further non-limiting.
Shown in figure 2, the sea sand iron ore of the embodiment of the present invention extracts Iron concentrate device and comprises: be arranged on the packaged type ore dressing platform 1 in COASTAL SURFACE, when needs ore dressing platform 1 moves, can draw it move by tractor tug.Ore dressing platform 1 is 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 are not all specifically shown on ore dressing platform), the seabed being positioned at sea water advanced≤150 meter is provided with the hydraulic pressure reamer 4 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, the end face of cutter head 42 is provided with multiple cutter tooth 44, the periphery of cutter head 42 is provided with the cutter ring 43 around multiple cutter tooth 44, cutter head 42 is provided with the cutter head runner 421 of hollow, cutter head runner 421 is in bell mouth shape, bell-mouthed small end is connected with the end of tool arm runner 411, 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 present invention adopts drum sieve; Secondary separating sieve adopts the round sieve that shakes.
As shown in Figure 1, the process utilizing the sea sand iron ore of the embodiment of the present invention to extract Iron concentrate device extraction Iron concentrate comprises the following steps:
(1) dig up mine: power set drive hydraulic pressure reamer 4 to rotate thus stir the alluvial great Sha block of the seabed iron content of sea water advanced≤150 meter, obtain the sea sand particle of fritter; The suction force of adjustment suction pump 2, only makes the sea sand particle of particle diameter≤25mm be sucked pump 2 together with seawater from cutter head runner 421, tool arm runner 411 and suction channel 3 and aspirates.And the sea sand particle of particle diameter > 25mm is directly abandoned in seabed, produce and prove that this part sea sand ratio of concentration is large, substantially do not have ore dressing to be worth, namely preliminary sorting has been carried out in mining step, follow-up ore dressing grade can be improved, and reduce the workload of ball mill, reduce energy consumption.
(2) one-level screening: the sea sand particle transport of the particle diameter≤25mm aspirated by suction pump 2 is carried out one-level screening to one-level separating sieve and drum sieve, the screening of the foreign material such as comparatively ratchel, weeds etc. of > 15mm is removed, obtains the sea sand particle of particle diameter≤15mm.
(3) secondary screening: the sieve that shaken by sea sand particle transport to the secondary separating sieve and circle of the particle diameter≤15mm obtained after one-level screening carries out secondary screening, obtains the sea sand particle of particle diameter≤5mm.
(4) preliminary election: the sea sand particle transport of secondary being sieved the particle diameter≤5mm obtained carries out preliminary election to following current preliminary election magnetic separator, and the magnetic induction intensity of this following current preliminary election magnetic separator is 4500 ± 200Gs, obtains the later half smart iron ore of preliminary election.
(5) roughly select: later half for preliminary election smart iron ore is delivered to following current magnetic rougher and 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, and production proof is roughly selected later half smart iron ore grade and reached 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 selected, the magnetic induction intensity of this half adverse current cleaning magnetic separator is 1800 ± 200Gs, obtains Iron concentrate.
In order to fully extract Iron concentrate, the sea sand particle transport of secondary being sieved the 5mm < particle diameter≤15mm sifted out in step carries out ball milling to ball mill, after ball milling, > 100 object sea sand particle transport to half adverse current magnetic rougher is roughly selected, roughly select later half smart iron ore to enter half adverse current cleaning magnetic separator again and carry out selected, produce and prove that the obtained half smart iron ore grade of this step reaches more than 40%.Because namely sea sand particle has carried out preliminary sorting in mining step, and the foreign material of screening step are removed, and greatly reduce the workload of ball mill, reduce energy consumption, select the small-sized wet-type ball mill of diameter less than 1.5 meters can to fulfil assignment requirement.
The seabed iron content alluvial great Sha block of the present invention to sea water advanced≤150 meter adopts strand suction mining mode, the magnetic separator of follow-up outfit various ways carries out magnetic separation, produce and prove that the Iron concentrate grade finally selected is more than 60%, ore dressing is satisfactory for result, is suitable for extracting Iron concentrate from the iron content sea sand of seabed.
The drum sieve addressed in the embodiment of the present invention, round sieve, ball mill, downstream-type magnetic separator, semi counter-stream magnetic separator and the power set of shaking drive the structure of hydraulic pressure reamer and operation principle thereof to be known prior art for a person skilled in the art, and in this not go into detail.
The above is only the citing of better embodiment of the present invention, and the part wherein do not addressed in detail is the common practise of those of ordinary skill in the art.Protection scope of the present invention is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present invention, also within protection scope of the present invention.
Claims (6)
1. utilize sea sand iron ore to extract the process of Iron concentrate device extraction Iron concentrate, it is characterized in that, described sea sand iron ore extracts Iron concentrate device and comprises:
Afloat packaged type ore dressing platform is set, described ore dressing platform 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; 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 by the import of suction channel with described suction pump, the other end of described tool arm is provided with cutter head, the end face of described cutter head is provided with multiple cutter 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;
The process of described extraction Iron concentrate comprises the following steps
(1) dig up mine: the hydraulic pressure reamer of rotation stirs the seabed iron content sea sand of sea water advanced≤150 meter, obtains 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: the sea sand particle transport of the particle diameter≤25mm aspirated by suction pump is carried out one-level screening to one-level separating sieve, obtains the sea sand particle of particle diameter≤15mm;
(3) secondary screening: the sea sand particle transport of the particle diameter≤15mm obtained after one-level being sieved carries out secondary screening to secondary separating sieve, obtains the sea sand particle of particle diameter≤5mm;
(4) preliminary election: the sea sand particle transport of secondary being sieved the particle diameter≤5mm obtained carries out preliminary election to following current preliminary election magnetic separator, the magnetic induction intensity of described following current preliminary election magnetic separator is 4500 ± 200Gs, obtains the later half smart iron ore of preliminary election;
(5) roughly select: later half for preliminary election smart iron ore is delivered to following current magnetic rougher and 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 selected, the magnetic induction intensity of described half adverse current cleaning magnetic separator is 1800 ± 200Gs, obtains Iron concentrate.
2. utilize sea sand iron ore to extract the process of Iron concentrate device extraction Iron concentrate as claimed in claim 1, 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. utilize sea sand iron ore to extract the process of Iron concentrate device extraction Iron concentrate as claimed in claim 2, it is characterized in that, the periphery of described cutter head is provided with the cutter ring around multiple described cutter tooth.
4. utilize sea sand iron ore to extract the process of Iron concentrate device extraction Iron concentrate as claimed in claim 1, it is characterized in that, described ore dressing platform is also provided with ball mill and half adverse current magnetic rougher.
5. the sea sand iron ore that utilizes as described in any one of claim 1-4 extracts the process of Iron concentrate device extraction Iron concentrate, it is characterized in that: described one-level separating sieve is drum sieve; Described secondary separating sieve is the round sieve that shakes.
6. the process extracting Iron concentrate as claimed in claim 4, it is characterized in that: in described secondary screening step, the sea sand particle transport of particle diameter > 5mm to described ball mill is carried out ball milling, > after ball milling 100 object sea sand particle transport to described half adverse current magnetic rougher is roughly selected, the magnetic induction intensity of described half adverse current magnetic rougher is 3500 ± 200Gs, must roughly select later half smart iron ore; Afterwards, step (6) is carried out 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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| CN105833987B (en) * | 2016-05-27 | 2018-06-19 | 泗水惠丰农业开发工程有限公司 | Shaping process in composite ore material 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 |
| CN108480038B (en) * | 2018-02-09 | 2020-10-16 | 广东长亨石业有限公司 | Process for recycling silt |
| 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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| US8628668B2 (en) * | 2008-05-13 | 2014-01-14 | Roger M. Simonson | Pipeline magnetic separator system |
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| 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 |
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