CN204602376U - A kind of ore treatment device - Google Patents
A kind of ore treatment device Download PDFInfo
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- CN204602376U CN204602376U CN201520323950.8U CN201520323950U CN204602376U CN 204602376 U CN204602376 U CN 204602376U CN 201520323950 U CN201520323950 U CN 201520323950U CN 204602376 U CN204602376 U CN 204602376U
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Abstract
The utility model provides a kind of ore treatment device, belong to crushing mechanism device field, comprise boulder crusher, intermediate crusher, fine crusher, superfine crusher and dry-dressing machine, described boulder crusher is gyratory crusher, described intermediate crusher is gyratory crusher, described fine crusher is impact crusher, and described superfine crusher is high-pressure roller mill; Described gyratory crusher, described gyratory crusher, described impact crusher, described high-pressure roller mill and described dry-dressing machine are linked in sequence successively.Prior art can only carry out lump ore and lump ore throwing for the magnetic iron ore that grade is higher is given up, a large amount of gangue minerals then can not be made fully to throw low-ore grade magnetic iron ore to remove, be difficult to reach the object significantly reducing production cost, the technical program then can be dished out effectively, reduces production cost.
Description
Technical field
The utility model relates to crushing mechanism device field, in particular to a kind of ore treatment device.
Background technology
At present, for the feature that the selected grade of ore is ultralow, ore handling capacity wants scale, technological process will simplify, mine tailing is thrown as early as possible, so could reduce muck cost, reduce into mill ore amount, producing in the process of fine iron breeze with low-ore grade magnetic iron ore, reduce the process to the extremely low gangue mineral of not iron content or iron content, it is the key reducing production cost, want to reduce the process to priceless barren rock, in advance it will be thrown from ore and remove, tail process is thrown in advance to ore, it is the most important approach realizing above-mentioned reduction production cost, for many years, people are to the ore of general iron content, by taking " much broken and lessmill " technique to reduce to reduce production cost into the granularity of ore grinding stone, also by adopt in before mill broken even in small, broken bits after " in advance throw useless " mode, reduce production cost, achieve certain economic benefit.But the throwing of lump ore and lump ore is given up, mainly for the magnetic iron ore that grade is higher, throw the country rock gangue except carrying secretly in recovery process, for low-ore grade magnetic iron ore, massive ore is thrown and useless a large amount of gangue minerals can not be made fully to throw remove, also valuable mineral is thrown simultaneously and remove, be difficult to reach the object significantly reducing production cost.
Utility model content
The purpose of this utility model is to provide a kind of ore treatment device, to improve above-mentioned problem.
The utility model is achieved in that
A kind of ore treatment device, comprise boulder crusher, intermediate crusher, fine crusher, superfine crusher and dry-dressing machine, described boulder crusher is gyratory crusher, and described intermediate crusher is gyratory crusher, and described fine crusher is impact crusher, and described superfine crusher is high-pressure roller mill; Described gyratory crusher, described gyratory crusher, described impact crusher, described high-pressure roller mill and described dry-dressing machine are linked in sequence successively.
At present, for the situation that the selected grade of ore is ultralow, reduce the process to the extremely low gangue mineral of not iron content or iron content, it is the key reducing production cost, want to reduce the process to priceless barren rock, in advance it will be thrown from ore and remove, and fully breaking ores guarantee a large amount of gangue mineral is fully thrown remove in can not also by valuable mineral throw remove, therefore ore passes through coarse crushing successively, in broken, in small, broken bits, abundant fragmentation has been achieved after ultrafine grinding four steps, now carry out dry separation again, just useless barren rock fully can be thrown and remove, not only efficiency is high but also effective, also indirectly reduce production cost.Actual operation process of the present utility model is such: ore enters successively in gyratory crusher, gyratory crusher, impact crusher, high-pressure roller mill and carries out fragmentation, finally enter in dry-dressing machine and carry out dry separation, the conveying of ore can pass through driving-belt, also can, with the passage tilted, can also be a dead lift.
Coarse crushing generally adopts jaw crusher, jaw crusher is also the firmest, but gyratory crusher is compared with jaw crusher, and its advantage is: the shattering process of gyratory crusher is carried out continuously in annular crusher chamber, therefore productivity ratio is higher, and power consumption is low. stable working; From product grading distribution curve. product grading composition, the raw meal particle size exceeding discharging opening width is less than jaw crusher, and quantity is also few, and fineness ratio is more even; In addition, initial material directly can pour charging aperture into from means of transport, without the need to arranging feeding machine; Simultaneously when type selecting, a jaw crushing function meets production requirement, then use jaw, if need two jaw, then should consider to select a gyratory crusher, and therefore gyratory crusher intensity is larger, and the coarse crushing for ore will be more effective.
In the reason of broken employing gyratory crusher be: cone crushing than large, efficiency is high, energy consumption is low, product granularity is even, broken various ore in being applicable to, rock; Rational in infrastructure, smashing principle and technical parameter advanced person, running is reliable, and operating cost is low; All parts of disintegrating machine all have wear-resistant protection, and maintenance cost is reduced to bottom line, and general service life can improve more than 30%, and unique oil lubricating system design, also substantially increases service life of equipment; When there is iron and instantaneous vexed car in this machine, the top lifting of energy hydraulic pressure, automatic discharge, greatly reduces former spring cone crusher and need shut down the worry of carrying out manual nest.
Impact crusher is a kind of high energy low consumption impact cutting with international most advanced level, and its performance plays irreplaceable effect in various ore thin broken equipment, is the most effective, practical current rubble machine reliably; Vulnerable part ultrahard wear-resistant material is made, and volume is little, lightweight, be convenient to change accessory.
Ultrafine grinding lectotype selection is high pressure roller mill equipment, and this equipment and technology is ripe, and crushing efficiency is high, single machine yield is large, fine ore content is many, product granularity is little, specific energy consumption is low, especially whole ore-dressing technique energy-conservation in more common fine crushing device have more advantage.(1) crushing efficiency is high, energy consumption is low: high-pressure roller mill is the operation principle utilizing laminated grinding, and laminated grinding is that a kind of compression is efficiently broken, and this utilizes the ore grinding of compression and shear stress broken compared with ball mill, and crushing efficiency is high and energy consumption is low, high-pressure roller mill coarse granule product also can produce a large amount of stress cracking, more easily grind, to Grinding procedure advantageously, ore grinding production capacity can be allowed to improve about 20%, also save grinding system power consumption simultaneously, generate a large amount of subparticle in high-pressure roller mill shattering process, crushed product fine fraction content is high, and material is how broken along cleavage surface, major part is tentatively dissociated, the preliminary election of larger productive rate throwing is given up and becomes possibility, realizing barren rock early throwing, the object of ore receipts morning, (2) much broken and lessmill is realized, reduce power consume: high-pressure roller mill in the course of the work, make to form concentrated stress between material particles inside and material contact surface, material particles is separated along cleavage surface or forms micro-crack, be conducive to being formed under thicker mog with mineral monomer, thus reduce grinding operation amount, reduce mog, reduce over the metal loss of grinding belt, improve sorting index and filtration operation efficiency, ore crack through high pressure roller mill process is many, grinding efficiency improves, steel ball, the consumption of the auxiliary material such as liner plate reduces all to some extent, the ore particles that operation in small, broken bits produces is less, fine ore content is more, next step ore grinding power consumption is more economized, grinding efficiency is also higher, disposal ability is also larger, according to the test of Bai Quan iron ore project and practical data of being correlated with, ore grain size before entering mill is narrowed down to 8mm and product granularity is constant from 15mm, grinding efficiency can improve about 18.91%, thus equipment total amount is reduced, the workshop scale of construction, floor space, the all corresponding reductions of expense such as production and maintenance, beneficiation cost reduces, realize energy-saving and cost-reducing, the object increased production and improved productivity.
To sum up, coarse crushing adopts gyratory crusher, in broken employing gyratory crusher, employing impact crusher in small, broken bits, ultrafine grinding adopts high-pressure roller mill to be optimum mode.
Further, broken product storage bin in being provided with between described gyratory crusher and described gyratory crusher.
Gyratory crusher is different from the broken speed of gyratory crusher, in the process of continuous operation, in order to not interrupt fragmentation, ensure operating efficiency, reduce production cost, broken product storage bin in then arranging between gyratory crusher and gyratory crusher, also inputs appropriate material as required for placing the ore piled up due to the difference of crusher in crushing speed in gyratory crusher.
Further, described gyratory crusher and described in be provided with heavy belt ore feeder between broken product storage bin.
Belt ore feeder achieves speed governing and improves, user can carry out speed governing by speed regulator turn-knob as required, just can realize ore deposit amount to control, have low in energy consumption, feed is even, easy to operate, the feature of precise control, adopting heavy belt ore feeder to be then fragmentation in order to meet large quantities of ore simultaneously, increasing work efficiency.
Further, be provided with between described gyratory crusher and described impact crusher in small, broken bits by ore storage bin.
In small, broken bits is continuity in order to ensure shattering process by ore storage bin, and the broken speed between such gyratory crusher and impact crusher just need not be synchronous; Just according to the load charging of impact crusher, each broken load can be alleviated so simultaneously, extend the service life of impact crusher.
Further, be provided with ultrafine grinding product storage bin and steady-flow constant-weight storehouse between described impact crusher and described high-pressure roller mill, described ultrafine grinding product storage bin is connected with described steady-flow constant-weight storehouse.
Product storage bin in small, broken bits is for settling the ore piled up because front and back crusher in crushing speed is different, steady-flow constant-weight storehouse then ensures that the ore flowed through in storehouse maintains the scope of a relative constancy all the time dynamically, the pressure of effective guarantee high-pressure roller mill feeding mouth, reduce uneven charging to cause vibratory impulse, reduce peakload, improve crushing effect, high-pressure roller mill is operated more steadily, pulverizes more fully, yield rate is higher, thus improve the running rate of equipment.
Further, be provided with to sieve and distribute ore storage bin and vibratory sieve between described high-pressure roller mill and described dry-dressing machine, described vibratory sieve is provided with oversize outlet and undersize outlet; The arrival end that described screening distributes ore storage bin is connected with described high-pressure roller mill, and the port of export that described screening distributes ore storage bin is connected with the arrival end of described vibratory sieve; Described oversize outlet is connected with described ultrafine grinding product storage bin, and described undersize outlet is connected with described dry-dressing machine.
Ore after high pressure roller mill crusher machine enters vibratory sieve after distributing ore storage bin through screening, ore after fragmentation is carried out dry separation by vibratory sieve, the ore filtration vibratory sieve satisfied condition enters dry-dressing machine and carries out dry separation, the ore do not satisfied condition turns back in ultrafine grinding product storage bin again, enter high-pressure roller mill again and carry out fragmentation, such loop structure, it is the standard that ore particles in order to ensure to enter dry-dressing machine all meets vibratory sieve and arranges, guarantee dry separation effectively and go out required ore, this is program of finally checking on together.
Further, described vibratory sieve is heavy Double-layer circular vibration screen.
Adopt the advantage of Double-layer circular vibration screen to be: circular impact screen is circular motion vibration, and amplitude power is adjustable, each shelves specification screening is clear, and screening efficiency is high, is applicable to the screening of mining, sandstone industry; Circular impact screen is a kind of high accuracy fine powder sieving equipment, and its noise is low, efficiency is high, and quick net exchanging only needs 3-5 minute, full-closed structure, and the screening being applicable to the materials such as grain, powder, mucus is filtered; Only need ore to be divided into two parts simultaneously, therefore adopt double-deck screen shale shaker.
Further, described dry-dressing machine is floated dry-dressing machine.
The effect that floated dry-dressing machine carries out throwing tail preliminary election is fine, farthest can improve the grade of ore.The dry separation of crushing system adopts floated dry-dressing machine, and this dry-dressing machine treating capacity is large, fine ore good separation effect, on average gets rid of give up about 18.91% when being crushed to 15 ~ 0mm granularity.Ore after high pressure roller mill fragmentation and gangue part are dissociated, and throw tail before can grinding, and improve the washability of ore.Ultra-poor ore deposit in small, broken bits, thrown tail rate and can be arrived 20 ~ 25% after 8mm.Enter the dry separation before mill and throw tail, throw except qualified tailings in advance, make to reduce into ore grinding amount, thus decrease power consume.
Select the grinding machine grinding capacity of factory to be the bottleneck that factory's disposal ability is selected in restriction, before mill, a large amount of qualified tailings is thrown and remove, be just equivalent to the effective processing capacity increasing grinding machine, select the treating capacity of the relative tcrude ore of factory also just to considerably increase.
Remove affect throwing in a large number containing mud mineral of grinding efficiency and screening efficiency, also the gangue mineral such as quartz, feldspar is thrown in a large number simultaneously and remove before mill, grinding efficiency and classification efficiency are improved, the final concentrate grade that same sorting process obtains increases, the raising of this concentrate grade, be not reducing grinding machine grinding capacity, do not reduce grinding particle size, do not change technical process, do not increase the situation of sorting link and be issued to, this directly impact select the economic benefit of factory.
Further, also comprise refuse bin and fine ore bin, described dry-dressing machine is provided with barren rock outlet and fine ore outlet, and described barren rock outlet is connected with described refuse bin, and described fine ore outlet is connected with described fine ore bin.
It is to obtain the higher ore of grade that ore passes through object that is broken and dry separation, now dry-dressing machine carry out dry separation will by priceless barren rock and valuable rock dry separation out, dry separation priceless barren rock out enters refuse bin through described barren rock outlet, and valuable rock then enters fine ore bin through fine ore outlet and stores.
Further, described gyratory crusher, described gyratory crusher, all connected by belt conveyor between described impact crusher and described high-pressure roller mill.
Belt conveyor be conveying medium, for be connected coarse crushing, in broken, in small, broken bits, ultrafine grinding Four processes, ore is transported in disintegrating machine successively and carries out fragmentation; The speed of conveying can be controlled by belt conveyor according to the Load Regulation of disintegrating machine, extend the service life of whole device.
The beneficial effects of the utility model: by by ore coarse crushing, in carry out dry separation again after broken, in small, broken bits, ultrafine grinding, under the principle of adhering to " much broken and lessmill ", the utility model can carry out the dry separation of low cost for the ore that grade is lower, useless barren rock fully can not only be thrown and remove, efficiency is high, effective, but also reduces production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
The overall structure schematic diagram of the ore treatment device that Fig. 1 provides for the utility model embodiment;
The overall flow figure of the ore treatment device that Fig. 2 provides for the utility model embodiment.
In figure:
Gyratory crusher 101; Gyratory crusher 102; Impact crusher 103; High-pressure roller mill 104; In broken product storage bin 105; Heavy belt ore feeder 106; In small, broken bits by ore storage bin 107; Ultrafine grinding product storage bin 108; Steady-flow constant-weight storehouse 109; Screening distributes ore storage bin 200; Oversize outlet 201; Undersize outlet 202; Floated dry-dressing machine 203; Barren rock outlet 204; Fine ore outlet 205; Heavy Double-layer circular vibration screen 206; Belt conveyor 207; Fine ore bin 208; Refuse bin 209.
Detailed description of the invention
For many years, people to the ore of general iron content, by taking " much broken and lessmill " technique to reduce to reduce production cost into the granularity of ore grinding stone, also by adopting " in advance the throw useless " mode in before mill after broken even coarse crushing, reduce production cost, achieve certain economic benefit.But the throwing of lump ore and lump ore is given up, mainly for the magnetic iron ore that grade is higher, throw the country rock gangue except carrying secretly in recovery process, for low-ore grade magnetic iron ore, massive ore is thrown and useless a large amount of gangue minerals can not be made fully to throw remove, also valuable mineral is thrown away simultaneously, is difficult to reach the object significantly reducing production cost.
For the problems referred to above, the utility model provides a kind of ore treatment device, by by ore by coarse crushing, in carry out dry separation again after broken, in small, broken bits, ultrafine grinding four abundant fragmentations of step, can the lower ore of dry separation grade, improve above-mentioned problem.
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.The assembly of the utility model embodiment describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.
Therefore, below to the detailed description of the embodiment of the present utility model provided in the accompanying drawings and the claimed scope of the present utility model of not intended to be limiting, but selected embodiment of the present utility model is only represented.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.
It should be noted that: " connection " in the technical program refers to the input port of delivery outlet by an equipment after conveying device arrival of previous equipment, as gyratory crusher, gyratory crusher, impact crusher, high-pressure roller mill and dry-dressing machine are linked in sequence successively and refer to material arrives gyratory crusher by conveying device charging aperture from gyratory crusher discharging opening, arrive the charging aperture of impact crusher through conveying device from the discharging opening of gyratory crusher, arrive the charging aperture of high-pressure roller mill again through conveying device from the discharging opening of impact crusher, enter in dry-dressing machine finally by conveying device, other are adopted and carry out mass transport in the same way.Here connection can adopt conveyer belt, the passage of inclination or a dead lift etc.
Embodiment 1, referring to figs. 1 through Fig. 2.
A kind of ore treatment device, comprise boulder crusher, intermediate crusher, fine crusher, superfine crusher and dry-dressing machine, boulder crusher is gyratory crusher 101, and intermediate crusher is gyratory crusher 102, and fine crusher is impact crusher 103, and superfine crusher is high-pressure roller mill 104; Gyratory crusher 101, gyratory crusher 102, impact crusher 103, high-pressure roller mill 104 and dry-dressing machine are linked in sequence successively.
At present, for the situation that the selected grade of ore is ultralow, reduce the process to the extremely low gangue mineral of not iron content or iron content, it is the key reducing production cost, want to reduce the process to priceless barren rock, in advance it will be thrown from ore and remove, and fully breaking ores guarantee a large amount of gangue mineral is fully thrown remove in can not also by valuable mineral throw remove, therefore ore passes through coarse crushing successively, in broken, in small, broken bits, abundant fragmentation has been achieved after ultrafine grinding four steps, now carry out dry separation again, just useless barren rock fully can be thrown and remove, not only efficiency is high but also effective, also indirectly reduce production cost.Actual operation process of the present utility model is such: ore enters successively in gyratory crusher 101, gyratory crusher 102, impact crusher 103, high-pressure roller mill 104 and carries out fragmentation, finally enter in dry-dressing machine and carry out dry separation, the conveying of ore can pass through driving-belt, also can, with the passage tilted, can also be a dead lift.
Coarse crushing generally adopts jaw crusher, jaw crusher is also the firmest, but gyratory crusher 101 is compared with jaw crusher, and its advantage is: the shattering process of gyratory crusher 101 is carried out continuously in annular crusher chamber, therefore productivity ratio is higher, and power consumption is low. stable working; From product grading distribution curve. product grading composition, the raw meal particle size exceeding discharging opening width is less than jaw crusher, and quantity is also few, and fineness ratio is more even; In addition, initial material directly can pour charging aperture into from means of transport, without the need to arranging feeding machine; Simultaneously when type selecting, a jaw crushing function meets production requirement, then use jaw, if need two jaw, then should consider to select a gyratory crusher 101, and therefore gyratory crusher 101 intensity is larger, and the coarse crushing for ore will be more effective.
In the reason of broken employing gyratory crusher 102 be: gyratory crusher 102 ratio of reduction is large, efficiency is high, energy consumption is low, and product granularity is even, broken various ore in being applicable to, rock; Rational in infrastructure, smashing principle and technical parameter advanced person, running is reliable, and operating cost is low; All parts of disintegrating machine all have wear-resistant protection, and maintenance cost is reduced to bottom line, and general service life can improve more than 30%, and unique oil lubricating system design, also substantially increases service life of equipment; When there is iron and instantaneous vexed car in this machine, the top lifting of energy hydraulic pressure, automatic discharge, greatly reduces former spring cone crusher 102 and need shut down the worry of carrying out manual nest.
Impact crusher 103 is a kind of high energy low consumption impact cuttings with international most advanced level, and its performance plays irreplaceable effect in various ore thin broken equipment, is the most effective, practical current rubble machine reliably; Vulnerable part ultrahard wear-resistant material is made, and volume is little, lightweight, be convenient to change accessory.
Ultrafine grinding lectotype selection is high pressure roller mill equipment, and this equipment and technology is ripe, and crushing efficiency is high, single machine yield is large, fine ore content is many, product granularity is little, specific energy consumption is low, especially whole ore-dressing technique energy-conservation in more common fine crushing device have more advantage.(1) crushing efficiency is high, energy consumption is low: high-pressure roller mill is the operation principle utilizing laminated grinding, and laminated grinding is that a kind of compression is efficiently broken, and this utilizes the ore grinding of compression and shear stress broken compared with ball mill, and crushing efficiency is high and energy consumption is low, high-pressure roller mill coarse granule product also can produce a large amount of stress cracking, more easily grind, to Grinding procedure advantageously, ore grinding production capacity can be allowed to improve about 20%, also save grinding system power consumption simultaneously, generate a large amount of subparticle in high-pressure roller mill shattering process, crushed product fine fraction content is high, and material is how broken along cleavage surface, major part is tentatively dissociated, the preliminary election of larger productive rate throwing is given up and becomes possibility, realizing barren rock early throwing, the object of ore receipts morning, (2) much broken and lessmill is realized, reduce power consume: high-pressure roller mill in the course of the work, make to form concentrated stress between material particles inside and material contact surface, material particles is separated along cleavage surface or forms micro-crack, be conducive to being formed under thicker mog with mineral monomer, thus reduce grinding operation amount, reduce mog, reduce over the metal loss of grinding belt, improve sorting index and filtration operation efficiency, ore crack through high pressure roller mill process is many, grinding efficiency improves, steel ball, the consumption of the auxiliary material such as liner plate reduces all to some extent, the ore particles that operation in small, broken bits produces is less, fine ore content is more, next step ore grinding power consumption is more economized, grinding efficiency is also higher, disposal ability is also larger, according to the test of Bai Quan iron ore project and practical data of being correlated with, ore grain size before entering mill is narrowed down to 8mm and product granularity is constant from 15mm, grinding efficiency can improve about 18.91%, thus equipment total amount is reduced, the workshop scale of construction, floor space, the all corresponding reductions of expense such as production and maintenance, beneficiation cost reduces, realize energy-saving and cost-reducing, the object increased production and improved productivity.
To sum up, coarse crushing adopts gyratory crusher 101, in broken employing gyratory crusher 102, employing impact crusher 103 in small, broken bits, ultrafine grinding adopts high-pressure roller mill 104 to be optimum modes.
In the present embodiment, gyratory crusher 101, gyratory crusher 102, all connected by belt conveyor 207 between impact crusher 103 and high-pressure roller mill 104.
Belt conveyor 207 be conveying medium, for be connected coarse crushing, in broken, in small, broken bits, ultrafine grinding Four processes, ore is transported in disintegrating machine successively and carries out fragmentation; The speed of conveying can be controlled by belt conveyor 207 according to the Load Regulation of disintegrating machine, extend the service life of whole device.
As the further optimization to the present embodiment, dry-dressing machine is floated dry-dressing machine 203.
The effect that floated dry-dressing machine 203 carries out throwing tail preliminary election is fine, farthest can improve the grade of ore.The dry separation of crushing system adopts floated dry-dressing machine, and this dry-dressing machine treating capacity is large, fine ore good separation effect, on average gets rid of give up about 18.91% when being crushed to 15 ~ 0mm granularity.Ore after high pressure roller mill fragmentation and gangue part are dissociated, and throw tail before can grinding, and improve the washability of ore.Ultra-poor ore deposit in small, broken bits, thrown tail rate and can be arrived 20 ~ 25% after 8mm.Enter the dry separation before mill and throw tail, throw except qualified tailings in advance, make to reduce into ore grinding amount, thus decrease power consume.
Select the grinding machine grinding capacity of factory to be the bottleneck that factory's disposal ability is selected in restriction, before mill, a large amount of qualified tailings is thrown and remove, be just equivalent to the effective processing capacity increasing grinding machine, select the treating capacity of the relative tcrude ore of factory also just to considerably increase.
Remove affect throwing in a large number containing mud mineral of grinding efficiency and screening efficiency, also the gangue mineral such as quartz, feldspar is thrown in a large number simultaneously and remove before mill, grinding efficiency and classification efficiency are improved, the final concentrate grade that same sorting process obtains increases, the raising of this concentrate grade, be not reducing grinding machine grinding capacity, do not reduce grinding particle size, do not change technical process, do not increase the situation of sorting link and be issued to, this directly impact select the economic benefit of factory.
In order to ensure broken continuity, broken product storage bin 105 in being provided with between gyratory crusher 101 and gyratory crusher 102.
Gyratory crusher 101 is different from the broken speed of gyratory crusher 102, in the process of continuous operation, in order to not interrupt fragmentation, ensure operating efficiency, reduce production cost, broken product storage bin 105 in then arranging between gyratory crusher 101 and gyratory crusher 102, for placing the ore piled up due to the difference of crusher in crushing speed and inputting appropriate material according to demand in gyratory crusher and input appropriate material as required in gyratory crusher 102.
Gyratory crusher 101 and in be provided with heavy belt ore feeder 106 between broken product storage bin 105.
Belt ore feeder achieves speed governing and improves, user can carry out speed governing by speed regulator turn-knob as required, just can realize ore deposit amount to control, have low in energy consumption, feed is even, easy to operate, the feature of precise control, adopting heavy belt ore feeder 106 to be fragmentation in order to meet large quantities of ore simultaneously, increasing work efficiency.
Be provided with in small, broken bits by ore storage bin 107 between gyratory crusher 102 and impact crusher 103.
In small, broken bits is continuity in order to ensure shattering process by ore storage bin 107, and the broken speed between such gyratory crusher 102 and impact crusher 103 just need not be synchronous; Just according to the load charging of impact crusher 103, each broken load can be alleviated so simultaneously, extend the service life of impact crusher 103.
In the present embodiment, be provided with ultrafine grinding product storage bin 108 and steady-flow constant-weight storehouse 109 between impact crusher 103 and high-pressure roller mill 104, ultrafine grinding product storage bin 108 is connected with steady-flow constant-weight storehouse 109.
Product storage bin in small, broken bits is for settling the ore piled up because front and back crusher in crushing speed is different, steady-flow constant-weight storehouse 109 guarantees ore flowed through in storehouse maintains the scope of a relative constancy all the time dynamically, the pressure of effective guarantee high-pressure roller mill 104 feeding mouth, reduce uneven charging to cause vibratory impulse, reduce peakload, improve crushing effect, high-pressure roller mill 104 is operated more steadily, pulverizes more fully, yield rate is higher, thus improve the running rate of equipment.
In order to abundant fragmentation, be provided with to sieve and distribute ore storage bin 200 and vibratory sieve between high-pressure roller mill 104 and dry-dressing machine, vibratory sieve is provided with oversize outlet 201 and undersize outlet 202; The arrival end that screening distributes ore storage bin 200 is connected with high-pressure roller mill 104, and screening distributes the port of export of ore storage bin 200 and is connected with the arrival end of vibratory sieve; Oversize outlet 201 is connected with ultrafine grinding product storage bin 108, and undersize outlet 202 is connected with dry-dressing machine.
Ore after high-pressure roller mill 104 fragmentation enters vibratory sieve after distributing ore storage bin 200 through screening, ore after fragmentation screens by vibratory sieve, the ore filtration vibratory sieve satisfied condition enters dry-dressing machine and carries out dry separation, the ore do not satisfied condition turns back in ultrafine grinding product storage bin 108 again, enter high-pressure roller mill 104 again and carry out fragmentation, such loop structure, it is the standard that ore particles in order to ensure to enter dry-dressing machine all meets vibratory sieve and arranges, guarantee dry separation effectively and go out required ore, this is program of finally checking on together.
As the preferred version of the present embodiment, vibratory sieve is heavy Double-layer circular vibration screen 206.
Adopt the advantage of heavy Double-layer circular vibration screen 206 to be: circular impact screen is circular motion vibration, and amplitude power is adjustable, each shelves specification screening is clear, and screening efficiency is high, is applicable to the screening of mining, sandstone industry; Circular impact screen is a kind of high accuracy fine powder sieving equipment, and its noise is low, efficiency is high, and quick net exchanging only needs 3-5 minute, full-closed structure, and the screening being applicable to the materials such as grain, powder, mucus is filtered; Only need ore to be divided into two parts simultaneously, therefore adopt double-deck screen shale shaker.
In order to reclaim barren rock well, also comprise refuse bin 209 and fine ore bin 208, dry-dressing machine is provided with barren rock outlet 204 and fine ore outlet 205, and barren rock outlet 204 is connected with refuse bin 209, and fine ore outlet 205 is connected with fine ore bin 208.
It is to obtain the higher ore of grade that ore passes through object that is broken and dry separation, now dry-dressing machine carry out dry separation will by priceless barren rock and valuable rock dry separation out, dry separation priceless barren rock out enters refuse bin 209 through barren rock outlet 204, and valuable rock then enters fine ore bin 208 through fine ore outlet 205 and stores.
The beneficial effects of the utility model: by by ore coarse crushing, in carry out dry separation again after broken, in small, broken bits, ultrafine grinding, under the principle of adhering to " much broken and lessmill ", the utility model can carry out the dry separation of low cost for the ore that grade is lower, useless barren rock fully can not only be thrown and remove, efficiency is high, effective, but also reduces production cost.
These are only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. an ore treatment device, is characterized in that, comprises boulder crusher, intermediate crusher, fine crusher, superfine crusher and dry-dressing machine, described boulder crusher is gyratory crusher, described intermediate crusher is gyratory crusher, and described fine crusher is impact crusher, and described superfine crusher is high-pressure roller mill; Described gyratory crusher, described gyratory crusher, described impact crusher, described high-pressure roller mill and described dry-dressing machine are linked in sequence successively.
2. ore treatment device according to claim 1, is characterized in that, broken product storage bin in being provided with between described gyratory crusher and described gyratory crusher.
3. ore treatment device according to claim 2, is characterized in that, described gyratory crusher and described in be provided with heavy belt ore feeder between broken product storage bin.
4. ore treatment device according to claim 1, is characterized in that, is provided with in small, broken bits by ore storage bin between described gyratory crusher and described impact crusher.
5. ore treatment device according to claim 1, is characterized in that, is provided with ultrafine grinding product storage bin and steady-flow constant-weight storehouse between described impact crusher and described high-pressure roller mill, and described ultrafine grinding product storage bin is connected with described steady-flow constant-weight storehouse.
6. ore treatment device according to claim 5, is characterized in that, is provided with to sieve to distribute ore storage bin and vibratory sieve between described high-pressure roller mill and described dry-dressing machine, and described vibratory sieve is provided with oversize outlet and undersize outlet; The arrival end that described screening distributes ore storage bin is connected with described high-pressure roller mill, and the port of export that described screening distributes ore storage bin is connected with the arrival end of described vibratory sieve; Described oversize outlet is connected with described ultrafine grinding product storage bin, and described undersize outlet is connected with described dry-dressing machine.
7. ore treatment device according to claim 6, is characterized in that, described vibratory sieve is heavy Double-layer circular vibration screen.
8. ore treatment device as claimed in any of claims 1 to 7, is characterized in that, described dry-dressing machine is floated dry-dressing machine.
9. ore treatment device as claimed in any of claims 1 to 7, it is characterized in that, also comprise refuse bin and fine ore bin, described dry-dressing machine is provided with barren rock outlet and fine ore outlet, described barren rock outlet is connected with described refuse bin, and described fine ore outlet is connected with described fine ore bin.
10. ore treatment device as claimed in any of claims 1 to 7, is characterized in that, described gyratory crusher, described gyratory crusher, is all connected by belt conveyor between described impact crusher and described high-pressure roller mill.
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| CN105903540A (en) * | 2016-06-22 | 2016-08-31 | 中国葛洲坝集团第五工程有限公司 | Preparation system and method of rock-fill dam bedding material |
| CN105903535A (en) * | 2016-05-31 | 2016-08-31 | 中信重工机械股份有限公司 | High-efficiency and low-energy-consumption mineral pulverizing technique and system |
| CN105983475A (en) * | 2016-02-19 | 2016-10-05 | 中建材（合肥）粉体科技装备有限公司 | High-pressure roller mill crushing system for magnetite and mineral dressing method of high-pressure roller mill crushing system |
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| CN105983475A (en) * | 2016-02-19 | 2016-10-05 | 中建材（合肥）粉体科技装备有限公司 | High-pressure roller mill crushing system for magnetite and mineral dressing method of high-pressure roller mill crushing system |
| CN105903535A (en) * | 2016-05-31 | 2016-08-31 | 中信重工机械股份有限公司 | High-efficiency and low-energy-consumption mineral pulverizing technique and system |
| CN105903540A (en) * | 2016-06-22 | 2016-08-31 | 中国葛洲坝集团第五工程有限公司 | Preparation system and method of rock-fill dam bedding material |
| CN107159433A (en) * | 2017-06-16 | 2017-09-15 | 鞍钢集团矿业有限公司 | Separation system is concentrated in magnetic ore deposit dry separation screening |
| CN109530048A (en) * | 2018-09-26 | 2019-03-29 | 华北理工大学 | A method of using impact grinding quick obtaining magnetite concentrate |
| CN111921698A (en) * | 2020-08-18 | 2020-11-13 | 黑龙江哈工石墨科技有限公司 | Process and equipment for efficiently crushing and grinding crystalline graphite for protecting large scale |
| CN114289154A (en) * | 2021-11-17 | 2022-04-08 | 镇康县振兴矿业开发有限责任公司 | Four-crushing and one-time closed-circuit screening ore crushing process and device |
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