CN203508185U - Ultralow-grade iron mine beneficiation system - Google Patents

Ultralow-grade iron mine beneficiation system Download PDF

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Publication number
CN203508185U
CN203508185U CN201320653133.XU CN201320653133U CN203508185U CN 203508185 U CN203508185 U CN 203508185U CN 201320653133 U CN201320653133 U CN 201320653133U CN 203508185 U CN203508185 U CN 203508185U
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iron ore
screen
bucket
screen frame
ore
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CN201320653133.XU
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左小兵
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Huili County CAITONG ferrotitanium limited liability company
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Huili County Good Luck Co Ltd
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Abstract

The utility model discloses an ultralow-grade iron mine beneficiation system which is used to solve the problem in the existing beneficiation technology that an ultralow-grade iron mine can not be screened. The ultralow-grade iron mine beneficiation system comprises a jaw crusher, a cone crusher, a screening machine, a powder storage, a rough grinding device, a fine grinding device, a GK screen, a high frequency screen, a permanent magnetic separator and a high gradient magnetic separator, which are connected in sequence, wherein the high gradient magnetic separator is provided with an iron ore concentrate bucket and a tailing bucket, the iron ore concentrate bucket is connected with a dehydrating device, the tailing bucket is connected with a first shaking table, a second shaking table and a tailing recycling machine, which are arranged in sequence, the tailing recycling machine is provided with an iron ore concentrate gathering bucket and a tailing slag gathering bucket, and the iron ore concentrate gathering bucket is connected with the dehydrating device. The ultralow-grade iron mine beneficiation system can screen the ultralow-grade iron mine so as to produce qualified iron ore concentrate, and simultaneously can screen tailings so as to produce the qualified iron ore concentrate, and therefore can improve utilization rate of resources.

Description

A kind of ultra-poor iron ore beneficiation system
Technical field
The utility model relates to magnetic separation technology field, magnetic ore deposit, is specifically related to a kind of ultra-poor iron ore beneficiation system.
Background technology
A large amount of exploitation due to iron ore mineral resources, can constantly reduce for stock number, cause raw ore exploitation taste day by day to reduce, the following process such as smelting also improve day by day to dressing product quality requirement, these reality have proposed more and more higher requirement to preparation equipment, impel preparation equipment constantly to more greatly, more excellent and energy-efficient future development.
In China land resources department, in iron ore, TTe content is 30%-45% to be called lean ore, TTe content >=45% is called rich ore, and TTe content is 25%-35% to be called unbalanced-ore (barren rock), prior art can both be produced qualified iron ore concentrate (qualified iron ore concentrate TFe grade >=58%) for the iron ore of TTe content >=25%; Yet prior art all can not be screened the iron ore of TTe content≤25% in iron ore, in to the process of iron ore screening, mine tailing TFe grade >=11% in existing technological process, causes serious waste of resources simultaneously.
Utility model content
The problem that the utility model can not screen the iron ore of TTe content≤25% for prior art, and provide a kind of ultra-poor iron ore beneficiation system, can screen the iron ore of TTe content≤25%, produce qualified iron ore concentrate (TFe grade >=58%), can screen the mine tailing producing in existing technological process, improve the utilization rate of resource simultaneously.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of ultra-poor iron ore beneficiation system, it is characterized in that: comprise the jaw crusher, gyratory crusher, screening machine, filler bin, corase grind device, fine grinding device, GK sieve, high-frequency screen, permanent magnetic separator and the high gradient magnetic separator that connect successively, described high gradient magnetic separator is provided with iron ore concentrate bucket and mine tailing bucket, described iron ore concentrate bucket connects dewater unit, described mine tailing bucket connects the first shaking table, the second shaking table and the refuse ore reclaiming machine setting gradually, described refuse ore reclaiming machine is provided with iron ore concentrate collection bucket and mine tailings collection bucket, and described iron ore concentrate collection bucket connects dewater unit.
Further, described gyratory crusher is equipped with the spraying and dedusting pipe for dedusting.
Further, described high-frequency screen comprises by rubber spring and is hung on screen frame in frame, is located at the mineral recovery apparatus of screen frame below, described mineral recovery apparatus comprises screenings collection bucket, described screen frame is at least two-layer, between screen frame, by adjustable shelf, connect, in screen frame, be provided with high-frequency screen screen cloth, screen frame is provided with ore pulp feedway, and described screen frame is provided with bobbing machine.
Further, described mineral recovery apparatus also comprises oversize collection bucket, and ore pulp feedway comprises ore feeder and mine distributor, between ore feeder and mine distributor, by mineral-feeding pipe, is connected.
Further, described screen frame and horizontal plane angle are 16 ° ~ 18 °.
Further, described screen cloth is divided into the upper, middle and lower-ranking fitting tightly, upper strata is that stainless steel wire coarse net layer, middle level are stainless steel wire fine mesh layer, and lower floor is polyurethane stratum reticulare, and the aperture of stainless steel wire fine mesh layer is all less than the aperture of stainless steel wire coarse net layer and polyurethane stratum reticulare.
Further, the screen-aperture of described stainless steel wire fine mesh layer is 0.12mm-0.15mm.
Compared with prior art, the utlity model has following beneficial effect:
One, ultra-poor iron ore beneficiation system of the present utility model can be carried out ore deposit choosing to ultra-poor iron ore, produces qualified iron ore concentrate, can carry out ore deposit choosing to mine tailing simultaneously and produce qualified iron ore concentrate, has improved the utilization rate of resource.Native system comprises that GK sieve can carry out desliming processing to iron ore, improves the grade of iron ore simultaneously.
Two, gyratory crusher of the present utility model is equipped with the spraying and dedusting pipe for dedusting, by spraying and dedusting pipe, can remove the dust in shattering process, ensures operating personnel's working healthily environment.
Three, mine tailing of the present utility model carries out gravity treatment at the first shaking table and the second shaking table, can improve the rate of recovery of iron ore deposit, improves the utilization rate of resource.
Four, high-frequency screen of the present utility model comprises by rubber spring and is hung on screen frame in frame, is located at the mineral recovery apparatus of screen frame below, described mineral recovery apparatus comprises screenings collection bucket, described screen frame is at least two-layer, between screen frame, by adjustable shelf, connect, be provided with high-frequency screen screen cloth in screen frame, screen frame is provided with ore pulp feedway, described screen frame is provided with bobbing machine, can improve the effect of screening, thereby improve the iron ore rate of recovery of raw ore, the taste that improves iron ore.
Five, screen frame of the present utility model and horizontal plane angle are 16 ° ~ 18 °, further improve screening efficiency, are beneficial to sieve Minerals and flow to collection bucket.
Six, screen cloth of the present utility model adopts three-decker, there is higher intensity, rigidity and bearing capacity, extended the service life of screen cloth, after even if the less stainless steel wire fine mesh layer in aperture is damaged, only need to change stainless steel wire fine mesh layer wherein, other screen clothes still can be used, and have therefore saved production cost.
Seven, the screen-aperture of stainless steel wire fine mesh layer of the present utility model is 0.12mm-0.15mm, can improve the effect of screening, improves further the taste of iron ore.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the structural representation of high-frequency screen one embodiment of the present utility model;
Fig. 3 is the structural representation of the utility model high-frequency screen screen cloth;
Mark in figure: 1-frame, 2, screen frame, 3, adjustable shelf, 4, vibrator, 5, oversize collection bucket, 6, screenings collection bucket, 7, ore feeder, 8, mine distributor, 9, mineral-feeding pipe, 10, stainless steel wire coarse net layer, 11, stainless steel wire fine mesh layer, 12, polyurethane stratum reticulare.
The specific embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described further; but be not to restriction of the present utility model; not departing from the not creative improvement of making under theme of the present utility model, all belong to protection domain of the present utility model.
Ultra-poor iron ore beneficiation system, comprise the jaw crusher, gyratory crusher, screening machine, filler bin, corase grind device, fine grinding device, GK sieve, high-frequency screen, permanent magnetic separator and the high gradient magnetic separator that connect successively, described high gradient magnetic separator is provided with iron ore concentrate bucket and mine tailing bucket, described iron ore concentrate bucket connects dewater unit, described mine tailing bucket connects the first shaking table, the second shaking table and the refuse ore reclaiming machine setting gradually, described refuse ore reclaiming machine is provided with iron ore concentrate collection bucket and mine tailings collection bucket, and described iron ore concentrate collection bucket connects dewater unit.Ultra-poor iron ore beneficiation system of the present utility model can be carried out ore deposit choosing to ultra-poor iron ore, produces qualified iron ore concentrate, can carry out ore deposit choosing to mine tailing simultaneously and produce qualified iron ore concentrate, has improved the utilization rate of resource.Native system comprises that GK sieve can carry out desliming processing to iron ore, improves the grade of iron ore simultaneously.
Further, described gyratory crusher is equipped with the spraying and dedusting pipe for dedusting, by spraying and dedusting pipe, can remove the dust in shattering process, ensures operating personnel's working healthily environment.
Further, described high-frequency screen comprises by rubber spring and is hung on screen frame in frame, is located at the mineral recovery apparatus of screen frame below, described mineral recovery apparatus comprises screenings collection bucket, and described screen frame is at least two-layer, between screen frame, by adjustable shelf, connects, in screen frame, be provided with high-frequency screen screen cloth, screen frame is provided with ore pulp feedway, and described screen frame is provided with bobbing machine, can improve the effect of screening, thereby improve the iron ore rate of recovery of raw ore, improve the taste of iron ore.
Further, described mineral recovery apparatus also comprises oversize collection bucket, and ore pulp feedway comprises ore feeder and mine distributor, between ore feeder and mine distributor, by mineral-feeding pipe, is connected.
Further, described screen frame and horizontal plane angle are 16 ° ~ 18 °, further improve screening efficiency, are beneficial to sieve Minerals and flow to collection bucket.
Further, described screen cloth is divided into the upper, middle and lower-ranking fitting tightly, upper strata is that stainless steel wire coarse net layer, middle level are stainless steel wire fine mesh layer, lower floor is polyurethane stratum reticulare, the aperture of stainless steel wire fine mesh layer is all less than the aperture of stainless steel wire coarse net layer and polyurethane stratum reticulare, by three-decker, there is higher intensity, rigidity and bearing capacity, extended the service life of screen cloth, after even if the less stainless steel wire fine mesh layer in aperture is damaged, only need to change stainless steel wire fine mesh layer wherein, other screen clothes still can be used, and have therefore saved production cost.
Further, the screen-aperture of described stainless steel wire fine mesh layer is 0.12mm-0.15mm, can improve the effect of screening, improves further the taste of iron ore.
The utility model is sieved and can be carried out desliming processing to material by GK, improve the taste of this iron ore, solved the deadly defect of existing employing screw classifying in assorting room simultaneously, desliming effect is particularly evident, have advantages of that energy consumption is low simultaneously, the feature (be 1-2 years the service life of existing equipment, adopts GK sieve can reach 6-8 years service life) simultaneously with long service life.By the screening of high-frequency screen, high-frequency screen screen-aperture size is 0.10mm-0.20mm, can improve further the taste of iron ore, can improve iron ore TFe2-3% grade; After permanent magnetic separator and high gradient magnetic separator, the taste of ultra-poor iron ore or mine tailing can be brought up to more than 58% again, be produced qualified iron ore concentrate, can process ultra-poor iron ore and mine tailing, improve the utilization rate of resource.Meanwhile, method of the present utility model can reclaim valuable mineral by mine tailing being sent into shaking table and refuse ore reclaiming machine, further improves the organic efficiency of valuable mineral, improves the rate of recovery of iron ore.
GK sieve of the present utility model, for GK Double-mass vibrating screen, comprises base, and screen frame is installed on base, and screen frame below is provided with discharge bucket, and the top of screen frame is provided with and is connected with vibrator, and vibrating motor is installed on vibrator.As a kind of preferred mode, between base and screen frame, damping spring is installed, between screen frame and vibrator, be also connected with exciting vibration spring; By damping spring, can either reduce noise, can improve screening effect simultaneously; By exciting vibration spring, can amplify the amplitude of vibrator, thereby produce the desired effective amplitude of screen frame, improve the screening effect of iron ore.
High-frequency screen of the present utility model comprises frame and screen frame, at least two laminations of screen frame are placed, screen frame by rubber spring hang establish with frame in, screen frame in the present embodiment is selected 5, 5 parallel formation layer structures that stack of screen frame, the angle of each screen frame and horizontal plane is 16 ° ~ 18 °, between multilayer screen frame, by adjustable shelf, connect, on ground floor screen frame, be provided with vibrator, this vibrator can adopt three-phase asynchronous vibration motor, the exciting force that vibrator produces drives screen frame to do rectilinear motion, owing to being connected with adjustable shelf between screen frame, the screen frame of other layers is done rectilinear motion with ground floor screen frame, high-frequency screen screen cloth is installed on screen frame, with this, realize the screening to oversize.
The high-frequency screen screen cloth of installing on screen frame is a kind of novel high-frequency sieve screen cloth, and this novel high-frequency sieve screen cloth comprises three-decker, and wherein upper strata screen cloth is stainless steel wire coarse net layer, and middle level screen cloth is stainless steel wire fine mesh layer, and lower screen is polyurethane stratum reticulare.Polyurethane stratum reticulare adopts the crisscross macroporous structure of crin, also can be inlaid into crossing in length and breadth steel wire in polyurethane stratum reticulare inside.During use, this polyurethane stratum reticulare directly contacts with exciting device.On polyurethane stratum reticulare, be provided with stainless steel wire layer, stainless steel wire layer is according to the difference in its aperture, this stainless steel wire layer is divided into the stainless steel wire fine mesh layer double-layer structure that is positioned at the stainless steel wire coarse net layer of top and is positioned at below, between above-mentioned three layers of screen cloth, fits tightly.The aperture of stainless steel wire fine mesh layer is 0.12mm-0.15mm, in order to screen better satisfactory mineral, can stainless steel wire fine mesh layer be set to rotary structure, by rotating this stainless steel wire fine mesh layer order number of adjustable screen constantly, can meet the demand of the varigrained mineral of sieve series.The aperture shape of stainless steel wire coarse net layer is not done specific (special) requirements, can be square, circular, oval, but preferred strip, the aperture of this stainless steel wire coarse net layer is greater than the aperture of lower floor's stainless steel wire fine mesh layer.In above-mentioned three kinds of screen layers, the size in stainless steel wire fine mesh layer aperture, middle level is all less than the aperture of upper strata stainless steel wire coarse net Ceng He lower floor polyurethane stratum reticulare.
On screen frame, be provided with ore pulp feedway, this ore pulp feedway can directly adopt pulp distributer, also can adopt the combination of mine distributor and ore feeder.
Pulp distributer: the feed pipe of pulp distributer stretches in pulp distribution box, pulp distribution box periphery is provided with a plurality of collection stock tanks, and on pulp distribution box, corresponding Ji Jiangchichu is respectively equipped with overfall, in each collection stock tank bottom, is provided with for connecting the mineral-feeding pipe of screen box.During normal use, ore pulp enters by feed pipe the height that pulp distribution box and mineral syrup liquid are increased to overfall gradually, ore pulp enters each collection stock tank from overfall afterwards, finally by being connected in the mineral-feeding pipe of collection stock tank bottom, ore pulp is sprinkled upon on the screen cloth in screen frame.
The combination of mine distributor and ore feeder: be provided with ore feeder on every one deck screen frame, ore feeder on every one deck screen frame is connected in the mine distributor of screen frame top by mineral-feeding pipe, mine distributor is delivered to ore pulp the ore feeder place of every layer of screen frame by mineral-feeding pipe, ore feeder is sprinkled upon ore pulp on the screen cloth in screen frame more equably, and sieves.In order to make screening efficiency higher, screen cloth in every layer of screen frame can be made as to two, between two screen clothes, arrange and reproduce slurry groove, mineral on first screen cloth dewater, unite after screening, again the mineral that dewater, unite are flow to and reproduce slurry groove, supply water, stir into after ore pulp and flow to again on second screen cloth and sieve.
Below bottom screen frame, be provided with mineral recovery apparatus, by mineral recovery apparatus, respectively the oversize of screen cloth and screenings are collected, this mineral recovery apparatus can adopt collection bucket directly oversize and screenings to be collected, and also can adopt belt transport mode oversize and screenings to be transferred to the workshop of subsequent processing.
The utility model adopts collection bucket form, oversize collection bucket and screenings collection bucket are set below bottom screen frame, this oversize collection bucket is for collecting the oversize of its all screen frames in top after screen cloth screening, and this screenings collection bucket is for collecting the screenings of its all screen frames in top after screen cloth screening.
Shaking table of the present utility model comprises the first shaking table and the second shaking table, can improve further the rate of recovery of iron ore of the present utility model, improves the taste of iron ore.The utility model by first, second shaking table after after gravity treatment can by the TFe taste of mine tailing from 15%--25% bring up to >=50%.Again through refuse ore reclaiming machine TFe taste can be brought up to >=58%, reach the requirement of qualified iron ore concentrate, simultaneously mine tailings after treatment in 6%≤TFe >=3%, thereby improve the rate of recovery of mine tailing, improve the utilization rate of iron ore.

Claims (7)

1. a ultra-poor iron ore beneficiation system, it is characterized in that: comprise the jaw crusher, gyratory crusher, screening machine, filler bin, corase grind device, fine grinding device, GK sieve, high-frequency screen, permanent magnetic separator and the high gradient magnetic separator that connect successively, described high gradient magnetic separator is provided with iron ore concentrate bucket and mine tailing bucket, described iron ore concentrate bucket connects dewater unit, described mine tailing bucket connects the first shaking table, the second shaking table and the refuse ore reclaiming machine setting gradually, described refuse ore reclaiming machine is provided with iron ore concentrate collection bucket and mine tailings collection bucket, and described iron ore concentrate collection bucket connects dewater unit.
2. ultra-poor iron ore beneficiation system according to claim 1, is characterized in that: described gyratory crusher is equipped with the spraying and dedusting pipe for dedusting.
3. ultra-poor iron ore beneficiation system according to claim 1, it is characterized in that: described high-frequency screen comprises by rubber spring and is hung on screen frame in frame, is located at the mineral recovery apparatus of screen frame below, described mineral recovery apparatus comprises screenings collection bucket, described screen frame is at least two-layer, between screen frame, by adjustable shelf, connect, in screen frame, be provided with high-frequency screen screen cloth, screen frame is provided with ore pulp feedway, and described screen frame is provided with bobbing machine.
4. ultra-poor iron ore beneficiation system according to claim 3, is characterized in that: described mineral recovery apparatus also comprises oversize collection bucket, and ore pulp feedway comprises ore feeder and mine distributor, between ore feeder and mine distributor, by mineral-feeding pipe, is connected.
5. ultra-poor iron ore beneficiation system according to claim 4, is characterized in that: described screen frame and horizontal plane angle are 16 ° ~ 18 °.
6. ultra-poor iron ore beneficiation system according to claim 5, it is characterized in that: described screen cloth is divided into the upper, middle and lower-ranking fitting tightly, upper strata is that stainless steel wire coarse net layer, middle level are stainless steel wire fine mesh layer, lower floor is polyurethane stratum reticulare, and the aperture of stainless steel wire fine mesh layer is all less than the aperture of stainless steel wire coarse net layer and polyurethane stratum reticulare.
7. ultra-poor iron ore beneficiation system according to claim 6, is characterized in that: the screen-aperture of described stainless steel wire fine mesh layer is 0.12mm-0.15mm.
CN201320653133.XU 2013-10-23 2013-10-23 Ultralow-grade iron mine beneficiation system Active CN203508185U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104258991A (en) * 2014-09-30 2015-01-07 太原钢铁(集团)有限公司 Lean iron ore recycling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104258991A (en) * 2014-09-30 2015-01-07 太原钢铁(集团)有限公司 Lean iron ore recycling device
CN104258991B (en) * 2014-09-30 2016-08-24 太原钢铁(集团)有限公司 The device that a kind of lean iron mine reclaims

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GR01 Patent grant
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TR01 Transfer of patent right

Effective date of registration: 20170919

Address after: Three groups of black Lixian Jing Xiang mining village of Sichuan province 615100 in Liangshan

Patentee after: Huili County CAITONG ferrotitanium limited liability company

Address before: 615100 Sichuan Yi Autonomous Prefecture in Liangshan province Huili County Nan Ge Xiang Huang Ni Gang

Patentee before: Huili County good luck Co., Ltd