CN101134176A - Low grade iron ore roughing separation equipment - Google Patents

Low grade iron ore roughing separation equipment Download PDF

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Publication number
CN101134176A
CN101134176A CNA2007101574361A CN200710157436A CN101134176A CN 101134176 A CN101134176 A CN 101134176A CN A2007101574361 A CNA2007101574361 A CN A2007101574361A CN 200710157436 A CN200710157436 A CN 200710157436A CN 101134176 A CN101134176 A CN 101134176A
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China
Prior art keywords
wet type
iron ore
equipment
wet
hammer mill
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Pending
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CNA2007101574361A
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Chinese (zh)
Inventor
王林
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王林
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Priority to CNA2007101574361A priority Critical patent/CN101134176A/en
Publication of CN101134176A publication Critical patent/CN101134176A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to beneficiation technology, and is especially one kind of low grade iron ore roughing apparatus, which includes one coarse crusher, one fine crusher, one dry separating screen, one storage bunker, and one wet rougher set comprising successively connected conveying belt, secondary screen, wet hammer type fine crusher, wet screen and wet rougher. Compared with available similar apparatus, the low grade iron ore roughing apparatus of the present invention has 1-2 times raised magnetic separation yield and best utilization of low grade iron ore resource.

Description

Low grade iron ore roughing separation equipment
Technical field
The present invention relates to the technique of preparing field, particularly a kind of low grade iron ore roughing separation equipment.
Background technology
Along with the development of steel and iron industry,, particularly increasing to the demand of iron ore concentrate to the demand of iron ore.Because how high-grad iron ore deposit reserves resource-constrained utilizes the resourceful lean ore resource of reserves just to become the task of top priority.The technical process of development and use lean ore resource comprises the following steps: iron ore is carried out coarse crushing, fine crushing, dry separation screening, ball milling, sub-material, magnetic separation, high frequency screening, secondary magnetic separation at present, the waste residue that dry separation is sieved out is transported, the mine tailing that magnetic separation is selected is delivered to tailing dam, and fine ore is sent into the concentrate pond.This technology is applicable to that the position product are at 20% left and right sides lean ore, and for the position product when the iron ore below 15% carries out ore dressing, productivity ratio is too low, cost is too high, particularly the contraposition product can't be obtained actual economic benefit at all when the soft iron ore of the extremely low-grade of 4-8% is handled.Therefore must be improved existing technology and equipment.Magnetic separation in the existing technology reaches and goes on foot operation thereafter is that reasonably key is to improve the grade of going into to select materials of magnetic separator.
Summary of the invention
The purpose of this invention is to provide a kind of low grade iron ore roughing separation equipment, can roughly select iron ore of low ore grade effectively.
The objective of the invention is to realize by following technical proposals:
Low grade iron ore roughing separation equipment of the present invention, comprise coarse crushing machine, fine crushing machine, dry separation screening machine, storage bin, it is characterized in that: be provided with a cover wet type and roughly select unit after described storage bin, this wet type is roughly selected unit and is comprised conveyer belt, rescreener, wet type fine crushing machine, wet screening machine and the wet type coarse classifier that connects successively.
Also can between described conveyer belt and rescreener, be provided with a dry-type magnetic extractor.
Described wet type fine crushing machine is the wet type hammer mill, on the charge door of this wet type hammer mill, be provided with water inlet pipe, the charge door place is provided with the backgauge chain screen in the casing of this wet type hammer mill, the upper end of this backgauge chain screen is fixed on the charge door of described hammer mill, the lower end is a free end, is provided with bucker on the bearing of this wet type hammer mill.
Described wet type coarse classifier is the wet type coarse granule iron ore strong magnetic separator that is provided with priming apparatus, above this wet type coarse granule iron ore strong magnetic separator, be provided with to the ore deposit case, be provided with striker plate for the magnetic separator support of case outlet left front, ore deposit with respect to this, this is provided with the screening batcher for the upper right side of ore deposit case.
Described screening batcher is the vibratory sieve that has eccentric vibrating device.
Described eccentric vibrating device is by motor, and the turning cylinder that is connected of motor is located at the eccentric wheel on this turning cylinder therewith, and the bearing block that this turning cylinder is connected on the vibratory sieve screen frame (unit) is formed.
The described motor mode that is connected with turning cylinder is: the output shaft of motor is provided with small pulley, and this small pulley is connected with big belt wheel on the turning cylinder by belt.
Low grade iron ore roughing separation equipment of the present invention has following advantage:
1, owing to set up wet type fine crushing machine, in the process of breaking ores, the mud soil that water will be mixed in the mineral aggregate rinses out, and has therefore reduced the load of back step operation individual device, has improved operating efficiency; Simultaneously, flowing water also makes the material flow in the disintegrating machine unimpeded, and fines flows away very soon, and coarse fodder obtains sufficient fragmentation, has improved the operating efficiency of disintegrating machine;
2, owing to set up wet type coarse granule iron ore strong magnetic separator, the water mud soil that will be mixed in the mineral aggregate rinses out once more in the process of magnetic separation; Because this wet type coarse granule iron ore strong magnetic separator has adopted from the top feed-type, iron charge can be more effectively adsorbed by strong magnetic, and mine tailing is easy to be washed away by current, has improved the operating efficiency of magnetic separator;
3, owing to set up wet screening machine and wet type coarse classifier, will sieve with wet type through the material behind the wet type fine crushing crusher machine and roughly select, selected coarse granule Iron Ore Powder grade can reach 40-49%;
4, screening machine of the present invention is the high frequency shale shaker that has eccentric vibrating device, because this eccentric vibrating device is to be located at sieve nest motor drives eccentric wheel bump sieve nest in addition, make sieve nest produce dither, the mode of this generation dither is simple and reliable, long service life, maintenance work is simple;
5, under the situation of lack of water, also can between conveyer belt and rescreener, be provided with a dry-type magnetic extractor, the non iron material that disperses is removed in choosing, alleviates the load of wet type fine crushing machine.
6, adopt low grade iron ore roughing separation of the present invention ore deposit equipment, but the contraposition product carry out ore dressing at the iron ore below 15%, particularly can handle at the iron ore of the extremely low-grade of 4-8% by the contraposition product, thereby make full use of the iron ore of low ore grade resource, have remarkable economic efficiency and social benefit.
Description of drawings
Fig. 1 is a device structure block diagram of the present invention.
Fig. 2 is the structural representation of wet type fine crushing machine.
Fig. 3 is the structural representation of wet type coarse granule iron ore strong magnetic separator.
Fig. 4 is the structural representation of eccentric vibrating device.
The specific embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
As shown in Figure 1, iron ore of low ore grade preparation equipment of the present invention, comprise coarse crushing machine 1, fine crushing machine 2, dry separation screening machine 3, storage bin 4, it is characterized in that: be provided with a cover wet type and roughly select unit after described storage bin 4, this wet type is roughly selected unit and is comprised conveyer belt, rescreener 5, wet type fine crushing machine 6, wet screening machine 7 and the wet type coarse classifier 8 that connects successively.
Also can between described conveyer belt and rescreener 5, establish a dry-type magnetic extractor (not shown).
As shown in Figure 2, described wet type fine crushing machine 6 is a wet type hammer mill 60, charge door place at this wet type hammer mill 60 is provided with water inlet pipe 62, the charge door place is provided with backgauge chain screen 61 in the casing of this wet type hammer mill 60, the upper end of this backgauge chain screen 61 is fixed on the charge door of described hammer mill, the lower end is a free end, is provided with bucker 67 on the bearing of this wet type hammer mill 60.This wet type hammer mill 60 is by screening dispenser 64 feeds that have eccentric vibrating device 65, and the oversize 63 of screening dispenser 64 is sent into hammer mill 60, and spoil area is sent in minus mesh 66.Be sent to wet screening machine 7 through broken ore via discharging opening 68.
As shown in Figure 3, described wet type coarse classifier 8 is for being provided with the wet type coarse granule iron ore strong magnetic separator 80 of priming apparatus 81, above this wet type coarse granule iron ore strong magnetic separator 80, be provided with to ore deposit case 84, be provided with striker plate 82 for the magnetic separator support of ore deposit case 84 outlet left fronts with respect to this, this is provided with screening dispenser 86 for the upper right side of ore deposit case 82.This wet type coarse granule iron ore strong magnetic separator 80 is by screening dispenser 86 feeds that have eccentric vibrating device 87, and the oversize 85 of screening dispenser 86 is sent into to ore deposit case 82, and spoil area is sent in minus mesh 66.The iron ore material that the process magnetic separation is selected is via discharging opening 88 dischargings, and the mine tailing of selecting is sent to the tailingspile.
Described screening dispenser 86 is for having the vibratory sieve of eccentric vibrating device 87.
As shown in Figure 4, described eccentric vibrating device 87 is by motor 878, and the turning cylinder 875 that is connected of motor 878 is located at the eccentric wheel 876 on this turning cylinder 875 therewith, and this turning cylinder is connected to 874,877 compositions of bearing block on the vibratory sieve screen frame (unit).
The described motor mode that is connected with turning cylinder is: the small pulley 871 that the output shaft of motor 878 is provided with is connected with big belt wheel 873 on the turning cylinder 875 by belt 872.
Low-grade soft iron ore of the present invention is roughly selected ore deposit equipment and is had following advantages:
1, owing to being provided with wet type type fine disintegrating machine and wet type coarse particle iron ore strong magnetic magnetic separator, in broken ore deposit In the process of stone and in the process of magnetic separation, the mud soil that water will be mixed in the mineral aggregate rinses out, and therefore falls The low load of rear each operation of step has improved operating efficiency; Flowing water also makes the material smoothness in the disintegrating machine Logical, fines flows away very soon, and coarse fodder obtains sufficient fragmentation, has improved the operating efficiency of disintegrating machine;
2, because wet type coarse particle iron ore strong magnetic magnetic separator adopts the top feed-type, iron charge can be more Effectively adsorbed by strong magnetic, mine tailing is easy to be washed away by current, has improved the operating efficiency of magnetic separator;
3, owing to being provided with wet screening machine and wet type coarse classifier, with the thing after the fragmentation of wet type type fine disintegrating machine Material sieves with wet type to be roughly selected, and selected coarse granule iron ore grade can reach 40-49%;
4, screening machine is the high frequency shale shaker with eccentric vibration apparatus, because this eccentric vibration apparatus For being located at sieve nest motor drives eccentric wheel bump sieve nest in addition, make sieve nest produce dither, this It is simple and reliable to plant the mode that produces dither, long service life, and maintenance work is simple;
5, in the situation of lack of water, also can between conveyer belt and rescreener, be provided with a dry type Magnetic separator, the non iron material that disperses is removed in choosing.
6, adopt low grade iron ore roughing separation equipment of the present invention, but the contraposition product are at the iron ore below 15% Carry out ore dressing, particularly can process at the iron ore of the extremely low-grade of 4-8% by the contraposition product.

Claims (7)

1. low-grade soft iron ore roughing separation equipment, comprise coarse crushing machine, fine crushing machine, dry separation screening machine, storage bin, it is characterized in that: be provided with a cover wet type and roughly select unit after described storage bin, this wet type is roughly selected unit and is comprised conveyer belt, rescreener, wet type fine crushing machine, wet screening machine and the wet type coarse classifier that connects successively.
2. preparation equipment according to claim 1 is characterized in that being provided with a dry-type magnetic extractor between described conveyer belt and rescreener.。
3. preparation equipment according to claim 1, it is characterized in that described wet type fine crushing machine is the wet type hammer mill, on the charge door of this wet type hammer mill, be provided with water inlet pipe, the charge door place is provided with the backgauge chain screen in the casing of this wet type hammer mill, the upper end of this backgauge chain screen is fixed on the charge door of described hammer mill, the lower end is a free end, is provided with bucker on the bearing of this wet type hammer mill.
4. preparation equipment according to claim 1, it is characterized in that described wet type coarse classifier is the wet type coarse granule iron ore strong magnetic separator that is provided with priming apparatus, above this wet type coarse granule iron ore strong magnetic separator, be provided with to the ore deposit case, be provided with striker plate for the magnetic separator support of case outlet left front, ore deposit with respect to this, this is provided with the screening batcher for the upper right side of ore deposit case.
5. preparation equipment according to claim 4 is characterized in that described screening batcher is the vibratory sieve that has eccentric vibrating device.
6. preparation equipment according to claim 5 is characterized in that described eccentric vibrating device by motor, and the turning cylinder that is connected of motor is located at the eccentric wheel on this turning cylinder therewith, and the bearing block that this turning cylinder is connected on the vibratory sieve screen frame (unit) is formed.
7. preparation equipment according to claim 6, it is characterized in that the described motor mode that is connected with turning cylinder is: the output shaft of motor is provided with small pulley, and this small pulley is connected with big belt wheel on the turning cylinder by belt.
CNA2007101574361A 2007-10-15 2007-10-15 Low grade iron ore roughing separation equipment Pending CN101134176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007101574361A CN101134176A (en) 2007-10-15 2007-10-15 Low grade iron ore roughing separation equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007101574361A CN101134176A (en) 2007-10-15 2007-10-15 Low grade iron ore roughing separation equipment

Publications (1)

Publication Number Publication Date
CN101134176A true CN101134176A (en) 2008-03-05

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101590441B (en) * 2008-05-26 2010-11-03 鞍钢集团矿业公司 Magnetite dry-separation tailing-discarding pre-separation technology
CN101716554B (en) * 2009-12-15 2011-11-09 中国瑞林工程技术有限公司 Ore dressing process capable of effectively recovering magnetic iron ore smaller than 12mm
CN103736571A (en) * 2013-12-30 2014-04-23 凌源市华晟矿业有限公司 Method for refining fine iron powder by using low grade iron mine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101590441B (en) * 2008-05-26 2010-11-03 鞍钢集团矿业公司 Magnetite dry-separation tailing-discarding pre-separation technology
CN101716554B (en) * 2009-12-15 2011-11-09 中国瑞林工程技术有限公司 Ore dressing process capable of effectively recovering magnetic iron ore smaller than 12mm
CN103736571A (en) * 2013-12-30 2014-04-23 凌源市华晟矿业有限公司 Method for refining fine iron powder by using low grade iron mine

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