CN2920414Y - Concentration machine for magnetic iron ore - Google Patents

Concentration machine for magnetic iron ore Download PDF

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Publication number
CN2920414Y
CN2920414Y CN 200620091519 CN200620091519U CN2920414Y CN 2920414 Y CN2920414 Y CN 2920414Y CN 200620091519 CN200620091519 CN 200620091519 CN 200620091519 U CN200620091519 U CN 200620091519U CN 2920414 Y CN2920414 Y CN 2920414Y
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magnetic
magnet exciting
separation
ore
exciting coil
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Expired - Fee Related
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CN 200620091519
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Chinese (zh)
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王常任
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Individual
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Abstract

A concentration machine for magnetic iraon ore belongs to the technical field of magnetic separation and is used for solving technical problems that the separation precision of the permanent magnet cylinder type magnetic separator is low, the magnetic field intensity of the magnetic concentration series is not adjustable and thus affects improvement of the separation metrics; and the overflow from the magnetic separation post cannot be directly disposed as ore tail. An overflow groove and a ore feeder are successively mounted at the upper part of the separation cylinder, 5 field coils are suited outside the separation cylinder. A water feeding bag, a concentrate bleeder and a concentrate bleeder valve are mounted at the lower part of the separation cylinder successively, the water feeding bag is provided with a tangential water feeding pipe, the separation cylinder is fixed on the support by a flange. The power supply supplies direct current in three circuits: The first circuit supplies constant direct current to the first field coil, the second circuit supplies impulse direct current to the second and fourth field coil I, and the third circuit supplies impulse direct current II to the third and fifth field coils. The utility model is a piece of magnetic separating equipment for magnetic iron ore, capable of directly separating high quality iron concentrate and the wasted ore tail.

Description

The magnetic iron ore refiner
Technical field:
Magnetic iron ore refiner of the present utility model belongs to the magnetic separation technology field.
Background technology:
Existing magnetic iron ore Jing Xuan Let is three kinds fully: permanent-magnet drum type magnetic separator, magnetic accumulating machine and magnetic separation post.There is stronger magnetic coagulation in permanent-magnet drum type magnetic separator in assorting room, be entrained with in the iron ore concentrate that the magnetic coagulation body is selected permanent-magnet drum type magnetic separator more monomer gangue and in, lean intergrowth.Therefore, the sharpness of separation of permanent-magnet drum type magnetic separator is lower; Though the magnetic accumulating machine efficiency of separation is higher, separation index is better.But the weak point of magnetic accumulating machine is that the magnetic field intensity of its magnetic system can not regulate according to the characteristic of milling ore with to the requirement of concentrate quality, thereby influences the raising of separation index; Though magnetic separation post sharpness of separation is higher, separation index is better.But the weak point of magnetic separation post is the every variation one-period in the magnetic field of its a whole set of magnet exciting coil group, and " zero " magnetic field must appear once in first group of coil.Therefore, it is often higher that the overflow product of being discharged by its top contains the Fe grade, can not directly fall as tailing waste, has to increase and sweep magnetic plant, selecting discarded tailing, and will sweep the rough concentrate that magnetic separation sorts out and return grinding-classification operation, handles again.
Summary of the invention:
Magnetic iron ore refiner of the present utility model will solve exactly: the sharpness of separation of permanent-magnet drum type magnetic separator is lower; The magnetic field intensity of the magnetic system of magnetic accumulating machine can not be carried out necessary adjusting according to the characteristic of milling ore with to the requirement of concentrate quality, thereby influences the raising of separation index; It is often higher that the overflow product that discharge on the top of magnetic separation post contains the Fe grade, the technical problem that can not directly fall as tailing waste.
Magnetic iron ore refiner of the present utility model is overflow launder to be housed successively on the top of separation tube and to give the ore deposit funnel, the outside of separation tube is with 5 magnet exciting coils, the bottom of separation tube is equipped with the feedwater bag successively, concentrate is discharged bucket and concentrate dump valve, the feed pipe of tangential direction is equipped with in the feedwater portion of wrapping, and separation tube is fixed on the support with ring flange.Divide three the road to supply with direct current by power supply, wherein: the first via is for constant dc to superposed the 1st magnet exciting coil; The second the tunnel is to being positioned at several the 2nd magnet exciting coils and the 4th magnet exciting coil for Rectified alternating current I; Third Road is to being positioned at several the 3rd magnet exciting coils and the 5th magnet exciting coil for Rectified alternating current II.
5 magnet exciting coils that the separation tube outside of magnetic iron ore refiner of the present utility model is with, the magnetic field combining form and the magnetic field operating mechanism that adopt are: magnet exciting coil is divided into three groups, form by the 1st magnet exciting coil for first group, supply with constant dc by power supply; Size of current can be regulated, and its magnetic field intensity is the magnetic field intensity that is lower than its two groups of magnet exciting coils in below, and it plays pre-magnetic action, make magnetite ore particles become the magnetization condensate; Form by the 2nd magnet exciting coil and the 4th magnet exciting coil for second group, supply with Rectified alternating current I by power supply, size of current can be regulated, the magnetic field operating mechanism for the energising<==outage alternate run, its energising, outage and time thereof, all regulate as required, this second group of excitation wire encloses " magnetic polymerization<==〉 disperse " effect; Form by the 3rd magnet exciting coil and the 5th magnet exciting coil for the 3rd group, supply with Rectified alternating current II by power supply, size of current can be regulated, the magnetic field operating mechanism for the outage<==energising alternate run, its outage, energising and time thereof, all regulate as required, this 3rd group of excitation wire encloses " disperse<==〉 magnetic polymerization " effect; This is corresponding with second group of magnet exciting coil role.When promptly second group of magnet exciting coil was in energising (perhaps outage) state, the 3rd group of magnet exciting coil was in outage (perhaps energising) state.And the time of the energising of these two groups of magnet exciting coils and outage is identical, but the length of its time can regulate, and for example duration of its energising, outage can be 0.8 second, 1 second or 1.2 seconds etc.The duration of energising, outage is to come as required to determine.The center of the 3rd group of magnet exciting coil is on a certain ad-hoc location below corresponding second group of magnet exciting coil.This ad-hoc location is that its magnetic field intensity is very little when second group of magnet exciting coil energising, almost near on zero the position.Second group and the 3rd group of magnet exciting coil magnetic field intensity are up to 14KA/M.
Entered in the separation tube through giving the ore deposit funnel by magnetite (ore pulp), outlet is near the 2nd magnet exciting coil center.Ore pulp is subjected to magnetization in advance through the 1st magnet exciting coil, and the magnetite ore particles in the ore pulp becomes condensate by individual particle and descends fast.The pulsating field of two groups of magnet exciting coils of below makes magnetite ore particles form good magnetic polymerizing condition, and magnetite ore particles is by magnetic field polymerization selectively.Condensate is a chain form and stable, orientation is above-below direction substantially, it is under gravity own and the effect of coil magnetic field power, move downward quickly, be subjected to the synergy of the ascending current that " disperse<==〉 magnetic polymerization ", " magnetic polymerization<==〉 disperse " and the feedwater of continuous several times contract out in the motion process, make the magnetic iron ore condensate very pure, it is very high that it contains the Fe grade, discharges bucket by concentrate and discharge through the concentrate dump valve.Monomer gangue in the ore pulp and in, lean intergrowth constantly obtains the flushing of ascending current, driven by ascending current, enters overflow launder through last magnet exciting coil (i.e. the 1st magnet exciting coil), discharge as true tailings.Operational elements mainly is size, powered operation system and the ascending water flow of magnet exciting coil electric current.The size of magnet exciting coil electric current, powered operation system are regulated according to the character of milling ore with to the requirement of product quality, and be normally changeless.Often control ascending water flow is just passable.
Magnetic iron ore refiner of the present utility model is the magnetic iron ore a kind of novel magnetic plant of (comprising natural magnetite and artificial magnet ore deposit).Magnetic iron ore refiner of the present utility model has that running gear simple in structure, no, power consumption are low, easy operating, magnetic field intensity can be regulated, floor space is little, unit are disposal ability height, can with the monomer gangue (comprising sludge) in the selected ore with contain magnetic iron ore in, lean intergrowth realizes effectively separating with the magnetic iron ore of monomer, can directly select and contain the Fe grade, and can directly select the beneficial effect of discarded tailing up to 66~72% high-quality iron ore concentrate.Magnetic iron ore refiner of the present utility model has also that cost is low, sharpness of separation is high, separation index is high, the beneficial effect of remarkable in economical benefits.
Description of drawings:
Fig. 1, magnetic iron ore refiner organigram.
Wherein concentrate dump valve (1), concentrate are discharged bucket (2), feedwater bag (3), feed pipe (4), separation tube (5), overflow launder (6), are given ore deposit funnel (7), the 1st magnet exciting coil (8), constant dc (9), the 2nd magnet exciting coil (10), Rectified alternating current I (11), power supply (12), Rectified alternating current II (13), the 3rd magnet exciting coil (14), the 4th magnet exciting coil (15), the 5th magnet exciting coil (16), ring flange (17), support (18).
Specific implementation method:
Magnetic iron ore refiner of the present utility model is overflow launder (6) to be housed successively on the top of separation tube (5) and to give ore deposit funnel (7), and the outside of separation tube (5) is with 5 magnet exciting coils (8; 10,15; 14,16), the bottom of separation tube (5) is equipped with feedwater bag (3) successively, concentrate is discharged bucket (2) and concentrate dump valve (1), and the feed pipe (4) of tangential direction is equipped with on feedwater bag (3) top, and separation tube (5) is fixed on the support (18) with ring flange (17).Divide three the road to supply with direct current by power supply (12), wherein: the first via is for constant dc (9) to superposed the 1st magnet exciting coil (8); The second the tunnel is to being positioned at several the 2nd magnet exciting coils (10) and the 4th magnet exciting coil (15) for Rectified alternating current I (11); Third Road is to being positioned at several the 3rd magnet exciting coils (14) and the 5th magnet exciting coil (16) for Rectified alternating current II (13).
5 magnet exciting coils (8 that the separation tube of magnetic iron ore refiner of the present utility model (5) outside is with; 10,15; 14,16), the magnetic field combining form and the magnetic field operating mechanism of employing are: magnet exciting coil is divided into three groups, is made up of the 1st magnet exciting coil (8) for first group, supplies with constant dc (9) by power supply (12); Size of current can be regulated, and its magnetic field intensity is the magnetic field intensity that is lower than its two groups of magnet exciting coils in below, and it plays pre-magnetic action, make magnetite ore particles become the magnetization condensate; Form by the 2nd magnet exciting coil (10) and the 4th magnet exciting coil (15) for second group, supply with Rectified alternating current I (11) by power supply (12), size of current can be regulated, the magnetic field operating mechanism for the energising<==outage alternate run, its energising, outage and time thereof, all can regulate as required, this second group of magnet exciting coil (10,15) plays " magnetic polymerization<==〉 disperse " effect; Form by the 3rd magnet exciting coil (14) and the 5th magnet exciting coil (16) for the 3rd group, supply with Rectified alternating current II (13) by power supply (12), size of current can be regulated, the magnetic field operating mechanism for the outage<==energising alternate run, its outage, energising and time thereof, all can regulate as required, this 3rd group of magnet exciting coil (14,16) plays " disperse<==〉 magnetic polymerization " effect; This is corresponding with second group of magnet exciting coil (10,15) role.When promptly second group of magnet exciting coil (10,15) was in energising (perhaps outage) state, the 3rd group of magnet exciting coil (14,16) was in outage (perhaps energising) state.And these two groups of magnet exciting coils (10,15; 14, energising 16) is identical with the time of outage, but the length of its time can regulate, and for example duration of its energising, outage can be 0.8 second, 1 second or 1.2 seconds etc.The duration of energising, outage is to come as required to determine.The center of the 3rd group of magnet exciting coil (14,16) is on a certain ad-hoc location in corresponding second group of magnet exciting coil (10,15) below.This ad-hoc location is that its magnetic field intensity is very little when second group of magnet exciting coil (10,15) switched on, almost near on zero the position.Second group of magnet exciting coil (10,15) and the 3rd group of magnet exciting coil (14,16) magnetic field intensity are up to 14KA/M.
Entered in the separation tube (5) through giving ore deposit funnel (7) by magnetite (ore pulp), outlet is near the 2nd magnet exciting coil (10) center.Ore pulp is subjected to magnetization in advance through the 1st magnet exciting coil (8), and the magnetite ore particles in the ore pulp becomes condensate by individual particle and descends fast.Two groups of magnet exciting coils (10,15 of below; 14, pulsating field 16) makes magnetite ore particles form good magnetic polymerizing condition, and magnetite ore particles is by magnetic field polymerization selectively.Condensate is a chain form and stable, orientation is above-below direction substantially, it is under gravity own and the effect of coil magnetic field power, move downward quickly, be subjected to the synergy that the ascending current that (3) comes out is wrapped in " disperse<==〉 magnetic polymerization ", " magnetic polymerization<==〉 disperse " and the feedwater of continuous several times in the motion process, make the magnetic iron ore condensate very pure, it is very high that it contains the Fe grade, discharges bucket (2) by concentrate and discharge through concentrate dump valve (1).Monomer gangue in the ore pulp and in, lean intergrowth constantly obtains the flushing of ascending current, driven by ascending current, enters overflow launder (6) through last magnet exciting coil (8) (i.e. the 1st magnet exciting coil (8)), discharge as true tailings.Operational elements mainly is size, powered operation system and the ascending water flow of magnet exciting coil electric current.The size of magnet exciting coil electric current, powered operation system are regulated according to milling ore character with to the requirement of product quality, and be normally changeless.Often control ascending water flow is just passable.

Claims (1)

1, a kind of magnetic iron ore refiner, it is characterized in that being equipped with successively overflow launder and give the ore deposit funnel on the top of separation tube, the outside of separation tube is with 5 magnet exciting coils, the bottom of separation tube is equipped with the feedwater bag successively, concentrate is discharged bucket and concentrate dump valve, the feed pipe of tangential direction is equipped with in the feedwater portion of wrapping, separation tube is fixed on the support with ring flange, divides three the road to supply with direct current by power supply, and wherein: the first via is for constant dc to superposed the 1st magnet exciting coil; The second the tunnel is to being positioned at several the 2nd magnet exciting coils and the 4th magnet exciting coil for Rectified alternating current I; Third Road is to being positioned at several the 3rd magnet exciting coils and the 5th magnet exciting coil for Rectified alternating current II.
CN 200620091519 2006-06-13 2006-06-13 Concentration machine for magnetic iron ore Expired - Fee Related CN2920414Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620091519 CN2920414Y (en) 2006-06-13 2006-06-13 Concentration machine for magnetic iron ore

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Application Number Priority Date Filing Date Title
CN 200620091519 CN2920414Y (en) 2006-06-13 2006-06-13 Concentration machine for magnetic iron ore

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CN2920414Y true CN2920414Y (en) 2007-07-11

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103846160A (en) * 2012-11-30 2014-06-11 中国石油化工股份有限公司 Separation method for slurry bed fischer-tropsch synthesis heavy product and catalyst
CN110227606A (en) * 2019-05-23 2019-09-13 黄艺蓉 A kind of bearing machining grinding fluid filter
CN114433349A (en) * 2022-02-09 2022-05-06 北矿机电科技有限责任公司 Partitioned excitation type electromagnetic classificator
CN115646628A (en) * 2022-04-12 2023-01-31 威海市海王旋流器有限公司 Magnetic classifier
CN116441045A (en) * 2023-06-15 2023-07-18 山西首钢国际工程技术有限公司 Vertical iron powder purifying machine for metallurgical process

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103846160A (en) * 2012-11-30 2014-06-11 中国石油化工股份有限公司 Separation method for slurry bed fischer-tropsch synthesis heavy product and catalyst
CN103846160B (en) * 2012-11-30 2016-08-24 中国石油化工股份有限公司 A kind of syrup state bed Fischer Tropsch synthetic heavy product and the separation method of catalyst
CN110227606A (en) * 2019-05-23 2019-09-13 黄艺蓉 A kind of bearing machining grinding fluid filter
CN110227606B (en) * 2019-05-23 2020-05-12 浙江新昌三雄轴承有限公司 Bearing processing grinding fluid filter
CN114433349A (en) * 2022-02-09 2022-05-06 北矿机电科技有限责任公司 Partitioned excitation type electromagnetic classificator
CN114433349B (en) * 2022-02-09 2024-04-05 北矿机电科技有限责任公司 Partition excitation type electromagnetic separator
CN115646628A (en) * 2022-04-12 2023-01-31 威海市海王旋流器有限公司 Magnetic classifier
CN116441045A (en) * 2023-06-15 2023-07-18 山西首钢国际工程技术有限公司 Vertical iron powder purifying machine for metallurgical process
CN116441045B (en) * 2023-06-15 2023-10-24 山西首钢国际工程技术有限公司 Vertical iron powder purifying machine for metallurgical process

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070711

Termination date: 20100613