CN101099942B - Deironing novel method for ore containing strong magnetic mineral - Google Patents
Deironing novel method for ore containing strong magnetic mineral Download PDFInfo
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- CN101099942B CN101099942B CN200710066077A CN200710066077A CN101099942B CN 101099942 B CN101099942 B CN 101099942B CN 200710066077 A CN200710066077 A CN 200710066077A CN 200710066077 A CN200710066077 A CN 200710066077A CN 101099942 B CN101099942 B CN 101099942B
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- Prior art keywords
- ore
- electromagnet
- iron
- ironware
- magnetic mineral
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 41
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 22
- 239000011707 mineral Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229910052742 iron Inorganic materials 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 230000005307 ferromagnetism Effects 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052951 chalcopyrite Inorganic materials 0.000 description 1
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention belongs to the field of ore sorting process, and is especially process of eliminating iron from ore containing strongly magnetic mineral. The process operates on that under the action of magnetic field, strongly magnetic mineral and iron exhibit different magnetizing performances. Over one running belt conveyer, are mounted one metal detector and several groups of electromagnets connected electrically to a computer for controlling their parameters. Through adsorption and release, strongly magnetic mineral and iron are delaminated gradually, and iron is finally adsorbed by the last electromagnet while the ore goes forwards. The present invention has automatic operation, high iron eliminating rate and other features.
Description
Technical field
The invention belongs to the method for ore sorting.Particularly a kind of method of from the ore that contains strongly magnetic mineral (as magnetic iron ore, sefstromite etc.), under the situation of not carrying ore secretly, removing ironware.
Background technology
When ore enters crusher in crushing,, all need remove ironware in advance in mining for the ironware of avoiding ore to sneak into influences the operate as normal of disintegrating machine.Removing the ironware of sneaking into from the ore that contains strongly magnetic mineral (as magnetic iron ore, titanomagnetite etc.), is a problem that difficulty is very big.It is close with some ironware that its difficult point just is that major part contains the ore volume susceptibility of strongly magnetic mineral, to such an extent as in the production scene, mine that contains strongly magnetic mineral, when removing ironware with existing deironing apparatus, a large amount of magnetic ores will be taken out of, the broken ore deposit of giving particularly, because ore grain size is big, adopt general tramp iron separator to remove ironware, the ore amount that brings out is very big, must have the additional accessory system of a cover facility more complicated to reclaim this partly ore, it is cumbersome to operate, and floor space is big, and is big to the belt wearing and tearing, easily causes and draws band, be difficult to realize automatic iron removing, therefore manual deironing generally all adopted in this class ore deironing at present.And during manual deironing since artificial judge differ, easily cause disintegrating machine to fall iron, and conveyer belt must be stopped during artificial deironing, cause disintegrating machine idle running, treating capacity descends, the conveyer belt frequent start-stop, the fatiguability fracture, power consumption is big, labor strength is big.Therefore how to realize that magnetic ore is not stopping conveyer belt, does not carry ore secretly, taking up an area of automatically ironware to be removed under few situation and just seem significant.
Summary of the invention
Technical problem to be solved by this invention provides deironing novel method in a kind of ore containing strong magnetic mineral, do not take surface area, full automation, deironing rate height, remove out that ironware does not carry that ore, working stability, fitting operation are simple secretly, small investment, application and transformation be easy to characteristics, be adapted to contain the automatic iron removing in the mine, sintering plant etc. of strongly magnetic mineral, can effectively solve the ore that contains strongly magnetic mineral and remove a difficult problem that is mingled with ironware.
The scheme that technical problem adopted that solves invention is: metal detector is installed and electromagnet more than two groups above the conveyer belt of operation, and be electrically connected with the interface of computer, computer is controlled the electromagnet parameter, magnetic force is weakened step by step, make the progressively layering of ferromagnetism ore and ironware by absorption, release, ironware is adsorbed on the group electromagnet of end and removes the most at last, and ore is then seen off with conveyer belt.
In technical scheme of the present invention, adopting computer-controlled electromagnet parameter is number of ampere turns, exciting curent and suspension height; The technological parameter that adopts in actual production is, the spacing between the electromagnet is 1m～20m, number of ampere turns 10～400, and exciting curent 10A～400A, suspension height 100mm～800mm, detector are provided with two with last, and spacing is 0.5m～30m.
This method has utilized the ironware that is mingled with in ferromagnetism ore and the ore stream shown magnetization property that comes out under the effect of magnetic field different, and the magnetic of ferromagnetism ore is mainly derived from Fe wherein
3O
4And owing to wherein contain gangue, thereby the intrinsic magnetic that it shows is more weak, ironware that is mingled with in the ore such as drill rod, rail, railway spike, things such as sledgehammer belong to ferromagnetic material, under the effect in magnetic field, make these materials have very high magnetic conductivity, this just makes these objects present very strong magnetic under magnetic field, but because the ferromagnetism ore is different with the volume susceptibility of ironware, under same magnetic field effect, ironware can be inhaled on electromagnet with the acceleration more much bigger than ferromagnetism ore, and tightly adhere on the electromagnet, ironware appears at the most close electromagnet place, ferromagnetism ore phenomenon outside, and when electromagnet cuts off the power supply, in the process of the magnetic potential of electromagnet with certain controlled manner decay, ironwares such as ferromagnetism ore and drill rod can be according to electromagnet parameter orderly the dropping successively of control, with the ironware realizing carrying secretly and the preliminary layering of strongly magnetic mineral.
When detector had detected ironware, first group of electromagnet powered up the ironware on the belt picked up, and also will pick up with ironware ferromagnetism ore together simultaneously, made ironware and the layering of ore elder generation by rational control electromagnet structure parameter then; Follow-up electromagnet carries out the action of first group of electromagnet successively, ironware and strongly magnetic mineral layered effect are become better and better, ironware is inhaled on the group electromagnet of end the most at last, is implemented in conveyer belt and does not stop, do not carry secretly the situation of ore automatically with the ironware removal that is mingled with in the ore.
This method is with two or more sets electromagnet cooperatings, and action is complicated, so adopt computer to control.
Complete equipment is the center to control electric cabinet, by special-purpose magnetic ore metal detector detectable signal, controls plurality of electromagnetic iron interoperation respectively, realizes that conveyer belt does not stop, do not carry secretly ore and automatically the ironware that is mingled with in the ore removed.
The invention has the beneficial effects as follows: electromagnet, metal detector are installed in conveyer belt top, have do not take surface area, transform easily, the characteristics of small investment; Adopt computer to control, can realize full automation, deironing rate height, remove out the effect that ironware is not carried ore, working stability secretly, can effectively solve the ore that contains strongly magnetic mineral and remove a difficult problem that is mingled with ironware.
Description of drawings
Fig. 1 is a device schematic diagram of the present invention.
Each label is among the figure: conveyer belt 1, computer 2, metal detector 3, electromagnet 4.
The specific embodiment
Embodiment 1 certain iron ore selects factory, valuable mineral is a magnetic iron ore, ore magnetic is stronger, ore grain size 300mm adopted manual deironing in the past, adopted the method for this patent, with 4 circular KL-1200 electromagnet, 6 meters of spacings, number of ampere turns 210 circles, pointed iron core, suspension height 600mm, 4 electromagnet exciting curents are respectively 300A, 210A, 100A, 90A, and 4 of TW1206 detectors are controlled 4 electromagnet respectively, spacing 7m, realized that conveyer belt does not stop, be not mingled with the automatic iron removing of ore, iron-removal rate 96.3%.
Claims (3)
1. method for removing iron in the ore containing strong magnetic mineral, it is characterized in that: metal detector is installed and electromagnet more than two groups above the conveyer belt of operation, and metal detector and two groups of above electromagnet all are electrically connected with the interface of computer, computer is controlled the electromagnet parameter, magnetic force is weakened step by step, make the progressively layering of ferromagnetism ore and ironware by absorption, release, ironware is adsorbed on the group electromagnet of end and removes the most at last, and ore is then seen off with conveyer belt.
2. by method for removing iron in the described ore containing strong magnetic mineral of claim 1, it is characterized in that: computer-controlled electromagnet parameter is number of ampere turns, exciting curent and suspension height.
3. method for removing iron in the ore containing strong magnetic mineral according to claim 1 and 2, it is characterized in that: the spacing between the electromagnet is 1m～20m, number of ampere turns 10～400, exciting curent 10A～400A, suspension height 100mm～800mm, metal detector is provided with more than two, and spacing is 0.5m～30m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710066077A CN101099942B (en) | 2007-07-30 | 2007-07-30 | Deironing novel method for ore containing strong magnetic mineral |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710066077A CN101099942B (en) | 2007-07-30 | 2007-07-30 | Deironing novel method for ore containing strong magnetic mineral |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101099942A CN101099942A (en) | 2008-01-09 |
| CN101099942B true CN101099942B (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710066077A Expired - Fee Related CN101099942B (en) | 2007-07-30 | 2007-07-30 | Deironing novel method for ore containing strong magnetic mineral |
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| Country | Link |
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| CN (1) | CN101099942B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277989A (en) * | 2015-10-16 | 2016-01-27 | 潍坊华强电磁设备有限公司 | Belt conveyor network metal detector system |
| CN109604053B (en) * | 2018-11-21 | 2020-10-27 | 宁夏学林粮油精米有限公司 | Fine grain sieving and stoning machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5423433A (en) * | 1994-05-06 | 1995-06-13 | Osborn Engineering, Inc. | Material separator apparatus |
| CN2210035Y (en) * | 1994-12-28 | 1995-10-18 | 宋振海 | Magnetic pyrite dry separating equipment |
| CN2557234Y (en) * | 2002-06-28 | 2003-06-25 | 宝山钢铁股份有限公司 | Parallel recovery type iron remover |
-
2007
- 2007-07-30 CN CN200710066077A patent/CN101099942B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5423433A (en) * | 1994-05-06 | 1995-06-13 | Osborn Engineering, Inc. | Material separator apparatus |
| CN2210035Y (en) * | 1994-12-28 | 1995-10-18 | 宋振海 | Magnetic pyrite dry separating equipment |
| CN2557234Y (en) * | 2002-06-28 | 2003-06-25 | 宝山钢铁股份有限公司 | Parallel recovery type iron remover |
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| Publication number | Publication date |
|---|---|
| CN101099942A (en) | 2008-01-09 |
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Granted publication date: 20100519 Termination date: 20130730 |