CN105728185A - Series grading magnetic separator - Google Patents

Series grading magnetic separator Download PDF

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Publication number
CN105728185A
CN105728185A CN201610169695.5A CN201610169695A CN105728185A CN 105728185 A CN105728185 A CN 105728185A CN 201610169695 A CN201610169695 A CN 201610169695A CN 105728185 A CN105728185 A CN 105728185A
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China
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magnetic
belt
sorting
pao
wei
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CN201610169695.5A
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CN105728185B (en
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何亚民
魏勇
徐智平
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Chengdu Leejun Industrial Co Ltd
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Chengdu Leejun Industrial Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00Magnetic separation
    • B03C1/02Magnetic separation acting directly on the substance being separated
    • B03C1/16Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
    • B03C1/22Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with non-movable magnets

Abstract

The invention discloses a series grading magnetic separator. The series grading magnetic separator comprises a rack which is internally provided with a first-grade separation belt, a first-grade conveying belt, a second-grade separation belt and a second-grade conveying belt from top to bottom in sequence; the first-grade separation belt is located below a feeding opening, a first tailing throwing mechanism is arranged at the unloading end of the first-grade separation belt, and a first separation magnetic system is arranged on the inner side of a lower belt of the first-grade separation belt; the unloading end of the first-grade conveying belt is covered with the first separation magnetic system; and the unloading end of the first-grade conveying belt is covered with the feeding end of the second-grade separation belt, a second tailing throwing mechanism is arranged at the unloading end of the second-grade separation belt, and the unloading scope of the second tailing throwing mechanism is covered with the feeding end of the second-grade conveying belt. The series grading magnetic separator is simple in structure, wide in application scope, capable of guaranteeing the grade of the finished product mine, capable of improving the recovery rate and suitable for separating magnetic mineral ground by grinding equipment in the industry of metallurgy, mines, chemical engineering and the like.

Description

Serial graded magnetic separator
Technical field
The present invention relates to magnetic plant field, mine, particularly to a kind of serial graded magnetic separator.
Background technology
China's iron ore deposit is abundanter, but lean ore is many, rich ore is few, so nearly all iron ore will pass through to sort grade and the utilization rate to improve raw material.When adopting dry-type magnetic extractor to sort, owing to Ore disseminated grain size is uneven, in order to obtain higher grade, generally crush by minimum disseminated grain size, so that the iron mineral that a part reaches monomer dissociation produces unnecessary overground, cause the loss of metal and the increase of energy consumption;Simultaneously as valuable mineral is overground seriously, although weak magnetic operation reclaims iron mine effect better, but stone-like pulse is mingled with phenomenon seriously, in order to upgrade, has to reduce the response rate, thus causing tailings grade higher.In other words, existing dry-type magnetic extractor cannot solve the contradiction between finished product ore deposit grade and the response rate.
Summary of the invention
The goal of the invention of the present invention is in that: for above-mentioned Problems existing, it is provided that a kind of simple in construction, wide accommodation, not only can guarantee that finished product ore deposit grade but also can improve the tandem stage magnetic separator of the response rate.The magnetic separator of the present invention is applicable to industry sortings of magnetic mineral after milling equipment grinding such as metallurgy, mine, chemical industry, is particularly suited for the sorting of breeze after high-pressure roller mill extrudes.
The technical solution used in the present invention is as follows: a kind of serial graded magnetic separator, including frame, sets one-level sorting belt, first-level transport belt, two grades of sorting belts and two-stage conveying belt in described frame from top to bottom successively;Described one-level sorting belt is positioned at the lower section of charging aperture, and the delivery end of one-level sorting belt is provided with Pao Wei mechanism one, is provided with sorting magnetic system one, is provided with demagnetizing region between described Pao Wei mechanism one and sorting magnetic system one inside the lower belt of described one-level sorting belt;Described one-level sorting belt is connected with first-level transport belt, and the feeding end of described first-level transport belt covers the unloading range of Pao Wei mechanism one, the delivery end of described sorting magnetic system one covering first-level transport belt;Described first-level transport belt be connected with two grades sorting belts, the feeding end of described two grades of sorting belts covers the delivery end of first-level transport belt, the delivery end of described two grades of sorting belts is provided with Pao Wei mechanism two, two grades of sorting belts be connected with two-stage conveying belt, the feeding end of described two-stage conveying belt covers the unloading range of Pao Wei mechanism two.
Setting due to said structure, first, material falls into one-level sorting belt upper surface from charging aperture and runs arrival Pao Wei mechanism one with belt, magnetic material is attracted in Pao Wei mechanism one non-magnetic material and is then thrown into mine tailing mouth under centrifugal action, it is achieved magnetic material separates with non-magnetic material.Owing to being provided with demagnetizing region between Pao Wei mechanism one and sorting magnetic system one, magnetic material falls into the feeding end of first-level transport belt after departing from magnetic working scope;Further, when magnetic material is transported to the working range of sorting magnetic system one by first-level transport belt, strongly magnetic material is sorted magnetic system one and is adsorbed on the lower belt surface of one-level sorting belt and falls into concentrate mouth with belt operation, weakly magnetic material then runs with first-level transport belt and falls on two grades of sorting belts, it is achieved strongly magnetic material and weakly magnetic material are sorted;Finally, weakly magnetic material sorts belt with two grades and runs to Pao Wei mechanism two, the sorting of weakly magnetic material and non-magnetic material is again realized under the effect of Pao Wei mechanism two, namely non-magnetic material is thrown into mine tailing mouth under centrifugal action, and weakly magnetic material is then fallen into and continued sorting on the two-stage conveying belt below Pao Wei mechanism two.
Being provided with sorting magnetic system two inside the lower belt of two grades of sorting belts, be again provided with demagnetizing region between sorting magnetic system two and Pao Wei mechanism two, magnetic material falls into the feeding end of two-stage conveying belt after departing from magnetic working scope;Further, when magnetic material is transported to the working range of sorting magnetic system two by two-stage conveying belt, strongly magnetic material is sorted magnetic system two and is adsorbed on the lower belt surface of two grades of sorting belts and falls into middle mine mouth with belt operation, and the material of extremely weak magnetic then can be thrown into mine tailing mouth by the delivery end of two-stage conveying belt.
In order to make sorting magnetic system one realize the sorting of strong magnetic and weak magnetic better, described sorting magnetic system one is provided with the field regions that multiple magnetic field intensity is different.When magnetic material enters the working range of sorting magnetic system one, the strongly magnetic material that mean diameter is less is caught by magnetic field and is attached in the lower belt surface of one-level sorting belt, and what mean diameter was bigger then covers the material surface that particle diameter is less.When the magnetic material being attracted on one-level sorting belt is transported to the relatively low-intensity magnetic field district of sorting magnetic system one, the magnetic material that part particle diameter is bigger will be fallen on first-level transport belt more than magnetic attraction due to self gravitation, when the magnetic material of whereabouts is delivered to the next one relatively high-intensity magnetic field district by first-level transport belt, the magnetic material that particle diameter is bigger can be picked up again, so, by sorting magnetic system pair of magnetic material and constantly pick up-fall-process that picks up, magnetic material is made to obtain the chance repeatedly sorted, realize magnetic material particle diameter on one-level sorting belt is longitudinal from top to bottom, layering from small to large, and then realize strong magnetic and the sorting of weak magnetic.Meanwhile, sorting magnetic system pair of magnetic material constantly pick up-fall-process that picks up in, solve magnetic material disk pack and wrap up in the problem assorted with magnetic clutch so that the concentrate grade that one-level sorting belt sorts out is greatly promoted.
Further, in order to make sorting magnetic system one have the field regions that multiple magnetic field intensity is different better, described sorting magnetic system one is made up of multiple little magnetic systems, and it is different to be adjacent to the magnetic field intensity between little magnetic system, to form the field regions with different magnetic field intensity.
Further, in order to make magnetic material ferromagnetism in the vertical more clearly demarcated to the layering of weak magnetic, the outside of sorting magnetic system one is provided with magnetic system governor motion.The position of each little magnetic system can be adjusted by this mechanism respectively, make each little magnetic system, because the distance sorting belt from one-level is different, material have different magnetic force, so that each little magnetic system is easier to material is produced different magnetic field intensities, and then realize the layering to weak magnetic of the magnetic material ferromagnetism on one-level sorting belt is longitudinal.
Further, being provided with gap between adjacent two little magnetic systems, gap location is provided with carrying roller.Setting due to carrying roller, parabolic path when material moves between strong and weak magnetic region can be adjusted, when namely adjusting magnetic material from entrance weak magnetic area, strong magnetic area dish out angle and entrance strong magnetic area, weak magnetic area time suction angle, promote that further magnetic material sorts the layering on belt in one-level.
Similarly, weak magnetic and the sorting of extremely weak magnetic is realized better in order to sort magnetic system two, described sorting magnetic system two is provided with the field regions that multiple magnetic field intensity is different, when weakly magnetic material enters the working range of sorting magnetic system two, weakly magnetic material is caught by magnetic field and is attached in the lower belt surface of two grades of sorting belts, and pole weakly magnetic material then covers weakly magnetic material surface.When the weakly magnetic material being attracted on two grades of sorting belts is transported to the relatively low-intensity magnetic field district of sorting magnetic system two, part pole weakly magnetic material will be fallen on two-stage conveying belt more than magnetic attraction due to self gravitation, when the pole weakly magnetic material of whereabouts is delivered to the next one relatively high-intensity magnetic field district by two-stage conveying belt, pole weakly magnetic material can be picked up again, so, by sorting magnetic system two pairs of magnetic materials and constantly pick up-fall-process that picks up, magnetic material is made to obtain the chance repeatedly sorted, realize magnetic material two grades sort belts longitudinally on from top to bottom, the layering of the extremely weak magnetic of weak magnetic, and then realize weak magnetic and the sorting of extremely weak magnetic.Meanwhile, sorting magnetic system two pairs of magnetic materials constantly pick up-fall-process that picks up in, solve magnetic material disk pack and wrap up in the problem assorted with magnetic clutch so that the chats grade that two grades of sorting belts sort out is greatly promoted.It addition, the structure of sorting magnetic system two can be identical with the structure of sorting magnetic system one, it is also possible to different, but the magnetic field intensity of sorting magnetic system two is greater than the magnetic field intensity of sorting magnetic system one, to realize the sorting to weakly magnetic material better.
In order to Shi Pao tail mechanism one can realize the separation to magnetic material and non-magnetic material better, described Pao Wei mechanism one includes a magnetization wheel one, is provided with fixing magnetic system in described magnetization wheel one.Undertaken throwing tail by magnetizing a pair material of wheel, the centrifugal force suffered by material, gravity and magnetic force can be made full use of, make magnetic material and non-magnetic material sorting thoroughly, reduce the non-magnetic material impact on subsequent handling as far as possible, avoid the repetition magnetic separation to non-magnetic material simultaneously, to reduce energy consumption, improve mineral grade.
Similarly, in order to material can be carried out weak magnetic and nonmagnetic separation by Shi Pao tail mechanism two better, described Pao Wei mechanism two includes a magnetization wheel two, it is provided with fixing magnetic system in described magnetization wheel two, weakly magnetic material and non-magnetic material is made to realize separating, and then obtain the magnetic material the least possible containing field trash, be conducive to the further process to magnetic material.
In order to improve separating effect further, it is provided with carrying roller inside the upper belt that one-level sorts belt and inside the upper belt of two grades of sorting belts, the effect of carrying roller is, the abrasion of belt can be slowed down on the one hand, on the other hand, after carrying roller sorted magnetic system one magnetization inside the upper belt of one-level sorting belt, carrying roller is made to have the function of Magnet, when material is above one-level sorts belt, due to the combined effect of carrying roller after the vibration of belt and magnetization, material can be carried out preenrichment, when making postorder throw tail, magnetic material separates more thorough with non-magnetic material, and then raising separating effect.Similarly, above-mentioned effect can also be reached after carrying roller sorted magnetic system two magnetization inside the upper belt of two grades of sorting belts.
In order to make technical scheme effectively be carried out, the outside of Pao Wei mechanism one is correspondingly provided with mine tailing mouth, and the delivery end of sorting magnetic system one is provided with concentrate mouth, the outside correspondence mine tailing mouth of Pao Wei mechanism two, the delivery end correspondence mine tailing mouth of two-stage conveying belt.Being provided with demagnetizing region between Pao Wei mechanism one and sorting magnetic system one, the feeding end of described first-level transport belt covers the unloading range of Pao Wei mechanism one, so that throwing the magnetic material after tail to entirely fall in first-level transport belt;The delivery end of described sorting magnetic system one covering first-level transport belt is also connected with concentrate mouth at the delivery end of sorting magnetic system one;Being provided with demagnetizing region between Pao Wei mechanism two and sorting magnetic system two, the feeding end of two-stage conveying belt covers the unloading range of Pao Wei mechanism two, so that throwing the magnetic material after tail to entirely fall in two-stage conveying belt;The delivery end of sorting magnetic system two covering two-stage conveying belt and in the delivery end of sorting magnetic system two is connected with mine mouth.
In the present invention, two grades of sorting belts and two-stage conveying belt composition multi-stage magnetic separation device, the lower of two-stage conveying belt can be provided with several multi-stage magnetic separation devices, to obtain the product of multiple different grade, and then can be adjusted according to actual needs, to reach to adapt to the purpose of needs of production.
The serial graded magnetic separator of the present invention is particularly suited for the sorting of breeze after high-pressure roller mill extrudes.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, by adopting magnetic field power magnetic system arrangement alternately, make magnetic separator can realize mineral varigrained concentrate layering magnetic separation belt is longitudinal according to the particle diameter of mineral, effectively solve disk pack and wrap up in the problem assorted with magnetic clutch;The setting of magnetic system governor motion, can be easier to the adjustment realizing magnetic system to material amount of force, is more beneficial for realizing mineral varigrained concentrate layering magnetic separation belt is longitudinal;The setting of carrying roller, it is possible to adjust parabolic motion track when material moves between strong and weak magnetic region, promote the layering of material further, dish out angle and the suction angle during by entrance strong magnetic area, weak magnetic area of material when namely adjusting material from entrance weak magnetic area, strong magnetic area;
2, by arranging two grades of sorting belts, it is possible to obtain the chats the least possible containing stone-like pulse, field trash, the grade simultaneously making chats is more consistent, and secondary middle mineral content few (pole weak magnetic mineral content is few) is conducive to the subsequent treatment of chats;
3, by selecting two-stage or the above magnetic separation structure of two-stage, magnetic separation number of times is increased, it is possible to obtain the product of different grade, improve the grade of same rank mineral;
4, adopt repeatedly magnetic separation and throw the mode that tail combines, overwhelming majority mine tailing in material can be made to be spilled over, obtain the concentrate product to chats difference grade;Meanwhile, in magnetic separation process, mine tailing will not be repeated to enter sorting step, reduces electric energy loss.
5, the serial graded magnetic separator simple in construction of the present invention, wide accommodation, not only can guarantee that finished product ore deposit grade but also the response rate can be improved, it is applicable to industry sortings of magnetic mineral after milling equipment grinding such as metallurgy, mine, chemical industry, it is particularly suited for the sorting of breeze after high-pressure roller mill extrudes, complete machine is by integrated setting simultaneously, compact conformation, equipment volume, weight optimize more, and on-the-spot occupied area is few.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of serial graded magnetic separator of the present invention;
Fig. 2 is another situation of a kind of serial graded magnetic separator of the present invention;
The little magnetic system that Fig. 3 is in the sorting magnetic system one of the present invention is arranged side by side schematic diagram;
Fig. 4 is the little magnetic system indentation arrangement schematic diagram in the sorting magnetic system one of the present invention;
Fig. 5 is the little magnetic system in the sorting magnetic system one of the present invention and carrying roller interval layout arrangement schematic diagram;
Fig. 6 is the little magnetic system in the sorting magnetic system one of the present invention and the layout arrangement of carrying roller interval and little magnetic system is that ladder arranges schematic diagram;
The outside that Fig. 7 is the sorting magnetic system one of the present invention is provided with the structural representation of magnetic system governor motion;
The outside that Fig. 8 is the sorting magnetic system one of the present invention is provided with the schematic diagram of magnetic system governor motion and carrying roller.
Labelling in figure: 1 is charging aperture, 2 is frame, 3 sort belt for one-level, 4 is first-level transport belt, 5 is two grades of sorting belts, 6 is two-stage conveying belt, 7 is Pao Wei mechanism one, 8 is Pao Wei mechanism two, 9 is magnetization wheel one, 10 is drive, 11 is magnetization wheel two, 12 is sorting magnetic system one, 13 is carrying roller, 14 is deviation switch, 15 is speed measurement switch, 16 is LOAD CELLS, 17 is the mouth that gathers dust, 18 is sorting magnetic system two, 19 is magnetic system governor motion, 20 is magnetic material, 1201, 1202, 1211, 1212 is little magnetic system, 201 is strongly magnetic material, 202 is weakly magnetic material, 203 is pole weakly magnetic material, 21 is concentrate mouth, 22 is middle mine mouth, 23 is mine tailing mouth.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
Embodiment one
As it is shown in figure 1, a kind of serial graded magnetic separator, including frame 2, in described frame 2, set one-level sorting belt 3, first-level transport belt 4, two grades of sorting belts 5 and two-stage conveying belt 6 from top to bottom successively;Described one-level sorting belt 3 is positioned at the lower section of charging aperture 1, the delivery end of one-level sorting belt 3 is provided with Pao Wei mechanism 1, it is provided with sorting magnetic system 1 inside the lower belt of described one-level sorting belt 3, between described Pao Wei mechanism 1 and sorting magnetic system 1, is provided with demagnetizing region;Described one-level sorting belt 3 is connected with first-level transport belt 4, and the feeding end of described first-level transport belt 4 covers the unloading range of Pao Wei mechanism 1, and described sorting magnetic system 1 covers the delivery end of first-level transport belt 4;Described first-level transport belt 4 be connected with two grades sorting belts 5, the feeding end of described two grades of sorting belts 5 covers the delivery end of first-level transport belt 4, the delivery end of described two grades of sorting belts 5 is provided with Pao Wei mechanism 28, two grades of sorting belts 5 be connected with two-stage conveying belt 6, the feeding end of described two-stage conveying belt 6 covers the unloading range of Pao Wei mechanism 28.
Specifically, the outside of Pao Wei mechanism 1 is correspondingly provided with mine tailing mouth 23, and the delivery end of sorting magnetic system 1 is provided with the outside correspondence mine tailing mouth 23 of concentrate mouth 21, Pao Wei mechanism 28, the delivery end correspondence mine tailing mouth 23 of two-stage conveying belt 6.Being provided with demagnetizing region between Pao Wei mechanism 1 and sorting magnetic system 1, the feeding end of described first-level transport belt 4 covers the unloading range of Pao Wei mechanism 1, so that throwing the magnetic material 20 after tail to entirely fall in first-level transport belt 4;Described sorting magnetic system 1 covers the delivery end of first-level transport belt 4 and is connected with concentrate mouth 21 at the delivery end of sorting magnetic system 1;Being provided with demagnetizing region between Pao Wei mechanism 28 and sorting magnetic system 2 18, the feeding end of two-stage conveying belt 6 covers the unloading range of Pao Wei mechanism 28, so that throwing the magnetic material after tail to entirely fall in two-stage conveying belt 6;Sorting magnetic system 2 18 cover two-stage conveying belt 6 delivery end and sorting magnetic system 2 18 delivery end be connected with in mine mouth 22.
As shown in Figure 1, the delivery end of one-level sorting belt 3 refers to the one-level sorting belt 3 end along the traffic direction of its upper belt, the delivery end of Pao Wei mechanism 1 refers to that magnetic material 20 starts to depart from the disengaging configuration of one-level sorting belt 3 delivery end, the unloading range of Pao Wei mechanism 1 refers to that the magnetic material 20 being attached in Pao Wei mechanism 1 departs from the disengagement zone of Pao Wei mechanism 1, wherein, the outside correspondence mine tailing mouth 23 of the delivery end of one-level sorting belt 3;The feeding end of first-level transport belt 4 refers to the lower section being positioned at one-level sorting belt 3 delivery end, and near one end of mine tailing mouth 23, the delivery end of first-level transport belt 4 refers to the first-level transport belt 4 end along its upper belt traffic direction;The delivery end of sorting magnetic system 1 refers to sorting magnetic system 1 one end near charging aperture side;The feeding end of two grades of sorting belts 5 refers to the lower section being positioned at first-level transport belt 4 delivery end, and near one end of sorting magnetic system 1 delivery end, the delivery end of two grades of sorting belts 5 refers to two grades of sorting belts 5 end along its upper belt traffic direction.The feeding end of two-stage conveying belt 6 refers to the lower section being positioned at two grades of sorting belt 5 delivery ends, and near one end of mine tailing mouth 23, the delivery end of two-stage conveying belt 6 refers to the two-stage conveying belt 6 end along its upper belt traffic direction, contrary with the position of the feeding end of two-stage conveying belt 6;The delivery end of sorting magnetic system 2 18 refers to sorting magnetic system 2 18 one end near charging aperture side.
As shown in Figure 1, Pao Wei mechanism 1 includes a magnetization wheel 1, it is provided with fixing magnetic system in magnetization wheel 1, when material runs to Pao Wei mechanism 1, the fixing magnetic system that magnetic material 20 is magnetized in wheel 1 catches, and is entrained into the feeding end of first-level transport belt 4, and non-magnetic material then can due to effect of inertia, thrown tail to mine tailing mouth 23, it is achieved the sorting of magnetic material and non-magnetic material.
When magnetic material 20 follows the lower section that one-level sorting belt 3 turns to one-level sorting belt 3 together, belt will more and more far away from magnetization wheel 1, the magnetic attraction causing magnetization one 9 pairs of magnetic materials of wheel is more and more weak, and then cause that magnetic material splits away off gradually from one-level sorting belt 3, and drop on first-level transport belt 4, namely magnetic material 20 enters into the demagnetizing region between Pao Wei mechanism 1 and sorting magnetic system 1.Conveying along with belt conveyor 4, when magnetic material 20 is sent to the working range of sorting magnetic system 1, strongly magnetic material 201 is sorted magnetic system 1 and is adsorbed on the lower belt surface of one-level sorting belt 3 and runs to the delivery end sorting magnetic system 1 with belt, eventually fall in the concentrate mouth 21 below sorting magnetic system 1 delivery end, weakly magnetic material 202 and part non-magnetic material then run the delivery end to first-level transport belt 4 with first-level transport belt 4, eventually fall in the feeding end of two grades of sorting belts 5 below first-level transport belt 4 delivery end, realize the sorting to strongly magnetic material 201 and weakly magnetic material 202.
Pao Wei mechanism 28 includes a magnetization wheel 2 11, is provided with fixing magnetic system, the lower section correspondence mine tailing mouth 23 outside Pao Wei mechanism 28 in magnetization wheel 2 11;After weakly magnetic material 202 and non-magnetic material enter the feeding end of two grades of sorting belts 5, the transport of belt 5 is sorted through two grades, when transport is to Pao Wei mechanism 28, the fixing magnetic system that weakly magnetic material 202 is magnetized in wheel 2 11 catches, and be attached on two grades of sorting belts 5 and together rotate, fall into after de-magnetic after in the feeding end of the two-stage conveying belts 6 below two grades of sorting belts 5, non-magnetic material in weakly magnetic material 202 then can due to effect of inertia, thrown tail to mine tailing mouth 23, it is achieved the sorting of weakly magnetic material 202 and non-magnetic material.
When magnetic material follows the lower section that two grades of sorting belts 5 turn to two grades of sorting belts 5 together, belt will more and more far away from magnetization wheel 2 11, the magnetic attraction causing magnetization 2 11 pairs of magnetic materials of wheel is more and more weak, and then cause that magnetic material splits away off gradually from two grades of sorting belts 5, and drop on two-stage conveying belt 6, namely magnetic material enters into the demagnetizing region between Pao Wei mechanism 28 and sorting magnetic system 2 18.Conveying along with two-stage conveying belt 6, when magnetic material is sent to the working range of sorting magnetic system 2 18, weakly magnetic material 202 is sorted magnetic system 2 18 and is adsorbed on the lower belt surface of two grades of sorting belts 5 and runs to the delivery end sorting magnetic system 2 18 with belt, eventually fall in the middle mine mouth 22 below sorting magnetic system 2 18 delivery end, pole weakly magnetic material 203 and part non-magnetic material then run the delivery end to two-stage conveying belt 6 with two-stage conveying belt 6, eventually fall in the mine tailing mouth 23 below two-stage conveying belt 6 delivery end, realize the sorting to weakly magnetic material 202 and pole weakly magnetic material 203.
In order to make sorting magnetic system 1 realize the sorting of strong magnetic and weak magnetic better, described sorting magnetic system 1 is provided with the field regions that multiple magnetic field intensity is different.When magnetic material 20 enters sorting magnetic system one 12 working range, the strongly magnetic material 201 that mean diameter is less is caught by magnetic field and is attached to one-level sorting belt 3 surface, and weakly magnetic material 202 and pole weakly magnetic material 203 that mean diameter is bigger then cover particle diameter less strongly magnetic material 201 surface.Be attracted to one-level sorting belt 3 on magnetic material 20 be transported to relatively low-intensity magnetic field district time, weakly magnetic material 202 and pole weakly magnetic material 203 that part particle diameter is bigger will be fallen on first-level transport belt 4 more than magnetic attraction due to self gravitation, when the magnetic material of whereabouts is delivered to the next one relatively high-intensity magnetic field district by first-level transport belt 4, weakly magnetic material 202 and pole weakly magnetic material 203 that particle diameter is bigger can be picked up again, so, by sorting magnetic system one 12 pairs of magnetic materials 20 and constantly pick up-fall-process that picks up, magnetic material 20 is made to obtain the chance repeatedly sorted, realize the magnetic material 20 particle diameter on one-level sorting belt 3 is longitudinal from top to bottom, the layering of strong magnetic extremely weak magnetic, and then realize strong magnetic and the sorting of weak magnetic.Meanwhile, sorting magnetic system one 12 pairs of magnetic materials 20 constantly pick up-fall-process that picks up in, solve magnetic material 20 disk pack and wrap up in the problem assorted with magnetic clutch so that the concentrate grade that one-level sorting belt 3 sorts out is greatly promoted.
In the present embodiment, in order to make sorting magnetic system 1 have the field regions that multiple magnetic field intensity is different better, described sorting magnetic system 1 is made up of multiple little magnetic systems, and it is different to be adjacent to the magnetic field intensity between little magnetic system, to form the field regions with different magnetic field intensity.
In the present embodiment, in order to make the magnetic material 20 ferromagnetism on one-level sorting belt 3 is longitudinal more clearly demarcated to the layering of weak magnetic, outside sorting magnetic system 1, it is provided with magnetic system governor motion 19.The position of each little magnetic system can be adjusted by this mechanism respectively, make each little magnetic system, because of different from the distance of magnetic separation belt, material have different magnetic force, so that each little magnetic system is easier to material is produced different magnetic field intensities, and then realize the layering to weak magnetic of magnetic material 20 ferromagnetism in the vertical, as shown in Figure 7.
In order to promote that magnetic material 20 sorts the layering on belt 3 in one-level further, being also provided with gap between adjacent two little magnetic systems, gap location is provided with carrying roller 13.Setting due to carrying roller 13, it is possible to adjust parabolic path when material moves between strong and weak magnetic region, when namely adjusting magnetic material 20 from entrance weak magnetic area, strong magnetic area dish out angle and entrance strong magnetic area, weak magnetic area time suction angle, as shown in Figure 8.
In the present embodiment, in order to ensure that all magnetic materials 20 can be held and sort out, the magnetic field intensity of described magnetization wheel 1 is more than 3000GS, simultaneously, in order to make sorting magnetic system 1 that material to realize sorting function better, the magnetic field intensity of described sorting magnetic system 1 ranges for the intensity level of the concrete magnetic field intensity of 400-3000GS(and determines according to kind and the granule size of material).Similarly, in order to ensure weakly magnetic material 202 with and the separating of non-magnetic material, the magnetic field intensity of described magnetization wheel 2 11 is more than 3000GS, to guarantee to obtain chats pure as far as possible.
Similarly, in order to make sorting magnetic system 2 18 realize the sorting of weak magnetic and extremely weak magnetic better, described sorting magnetic system 2 18 is provided with the field regions that multiple magnetic field intensity is different.When magnetic material enters sorting magnetic system 2 18 working range, weakly magnetic material 202 is caught by magnetic field and is attached to two grades of sorting belt 5 surfaces, and pole weakly magnetic material 203 then covers weakly magnetic material 202 surface.Be attracted to two grades sorting belt 5 on magnetic materials be transported to relatively low-intensity magnetic field district time, pole weakly magnetic material 203 will be fallen on two-stage conveying belt 6 more than magnetic attraction due to self gravitation, when the magnetic material of whereabouts is delivered to the next one relatively high-intensity magnetic field district by two-stage conveying belt 6, pole weakly magnetic material 203 can be picked up again, so, by sorting magnetic system 2 18 pairs of magnetic materials and constantly pick up-fall-process that picks up, magnetic material is made to obtain the chance repeatedly sorted, realize magnetic material particle diameter on two grades of sorting belts 5 are longitudinal from top to bottom, the layering of the extremely weak magnetic of weak magnetic, and then realize weak magnetic and the sorting of extremely weak magnetic.Meanwhile, sorting magnetic system 2 18 pairs of magnetic materials constantly pick up-fall-process that picks up in, solve magnetic material disk pack and wrap up in the problem assorted with magnetic clutch so that the chats grade that two grades of sorting belts 5 sort out is greatly promoted.
In order to improve separating effect further, it is provided with carrying roller 13 inside the upper belt that one-level sorts belt 3 and inside the upper belt of two grades of sorting belts 5, the effect of carrying roller 13 is, the abrasion of belt can be slowed down on the one hand, on the other hand, after carrying roller sorted magnetic system 1 magnetization inside the upper belt of one-level sorting belt 3, carrying roller 13 is made to have the function of Magnet, when material is above one-level sorts belt 3, due to the combined effect of carrying roller after the vibration of belt and magnetization, material can be carried out preenrichment, when making postorder throw tail, magnetic material separates more thorough with non-magnetic material, and then raising separating effect.Similarly, above-mentioned effect can also be reached after carrying roller 13 sorted magnetic system 2 18 magnetization inside the upper belt of two grades of sorting belts 5.
In the present embodiment, sorting magnetic system 2 18 also can be made up of multiple little magnetic systems, and magnetic system governor motion 19 can be provided with equally, to reach the function identical with sorting magnetic system 1, but the magnetic field intensity of sorting magnetic system 2 18 is greater than the magnetic field intensity of sorting magnetic system 1, to guarantee the sorting realizing weak magnetic and extremely weak magnetic.
In the present embodiment, magnetization wheel 1 and magnetization wheel 2 11 places are additionally provided with speed measurement switch 15, are used for detecting whether belt operates and skid, it is ensured that equipment properly functioning;Additionally, be additionally provided with deviation switch 14 in the belt both sides of one-level sorting belt 3, first-level transport belt 4, two grades sorting belt 5 and two-stage conveying belt 6, for guaranteeing the properly functioning of equipment.It is also arranged above the mouth 17 that gathers dust in Pao Wei mechanism 1, in order to guarantee that equipment will not to environment, on two-stage conveying belt 6, also it is provided with LOAD CELLS 16, by the chain even running guaranteeing system of the effect of LOAD CELLS 16 Yu milling equipment simultaneously.
Embodiment two
Embodiment two is identical with embodiment one, it is different in that, eliminate the sorting magnetic system 2 18 inside the lower belt being arranged on two grades of sorting belts 5, as shown in Figure 2, this serial graded magnetic separator is mainly for the higher material of grade, namely material is after one-level sorting belt 3 sorts, weakly magnetic material 202 completely can be sorted out and fall on two-stage conveying belt 6 and be admitted to after the working range departing from magnetization wheel 2 11 by the magnetization wheel 2 11 in Pao Wei mechanism 28 with pole weakly magnetic material 203 in mine mouth 22, because of without again sorting, advantageously reduce equipment cost.
Embodiment three
nullThe present embodiment is identical with embodiment one,It is different in that,In the present embodiment,There is no magnetic system governor motion 19,Sorting magnetic system 1 is arranged to make up by multiple little magnetic systems,The magnetic field intensity of adjacent two little magnetic systems is different,So that sorting magnetic system 1 has the field regions of multiple different magnetic field intensity,As shown in Figure 3 and Figure 4,Little magnetic system 1201 is different from the magnetic field intensity of little magnetic system 1202,The field regions of sorting magnetic system 1 is divided into strong magnetic area along the direction of material transportation、Weak magnetic area、Strong magnetic area、Weak magnetic areas etc. are alternately distributed,Multiple little magnetic systems can horizontal Tile one-level sort belt 3 inner side,Also the inner side indentation arrangement of belt 3 can be sorted in one-level,When multiple little magnetic systems horizontal Tile sorts the inner side of belt 3 in one-level,The magnetic field intensity of adjacent two little magnetic systems is different,The little magnetic system that magnetic field intensity is big forms the high-intensity magnetic field district of sorting magnetic system 1,The little magnetic system that magnetic field intensity is little forms the low-intensity magnetic field district of sorting magnetic system 1;When multiple little magnetic tie up to the inner side indentation arrangement of belt, the magnetic field intensity of adjacent two little magnetic systems can be different, can also be identical, on same vertical direction, little magnetic system 1201 that position is relatively low and the lowermost end of little magnetic system 1202(and zigzag fashion) form the high-intensity magnetic field district of sorting magnetic system 1, little magnetic system 1211 that position is higher and the most significant end of little magnetic system 1212(and zigzag fashion) form the low-intensity magnetic field district of sorting magnetic system 1.
Correspondingly, can also there be magnetic system governor motion 19 in the outside of sorting magnetic system 2 18, can also not have, in other words, sorting magnetic system 2 18 also has several permutation and combination methods of sorting magnetic system 1, sorting magnetic system 1 and sorting magnetic system 2 18 arrangement mode each other and is independent of each other, namely when the little magnetic system sorting magnetic system 1 is horizontal Tile distribution, sorting magnetic system 2 18 can be horizontal Tile distribution, it is possible to indentation arranges;When sorting the little magnetic system zigzag arrangement of magnetic system 1, sorting magnetic system 2 18 can be horizontal Tile distribution, it is possible to indentation arranges.
Embodiment four
nullThe present embodiment is identical with embodiment one and embodiment three,It is different in that,The magnetic field distribution of sorting magnetic system 1 is except strong and weak replacing,In the direction carried along material, it is on the whole also in by by force to weak Distribution of Magnetic Field,In other words,Two often adjacent its magnetic field intensities of spaced apart high-intensity magnetic field district reduce along the direction that material is carried,The magnetic field intensity in preceding high-intensity magnetic field district is more than the magnetic field intensity in posterior high-intensity magnetic field district,As shown in Figure 3 and Figure 4,The high-intensity magnetic field district of little magnetic system 1201 formation is more than the high-intensity magnetic field district of little magnetic system 1202 formation,And in low-intensity magnetic field district,Two often adjacent its magnetic field intensities of spaced apart low-intensity magnetic field district reduce or constant along the direction that material is carried,Namely the low-intensity magnetic field district of little magnetic system 1211 formation can be identical with the low-intensity magnetic field district of little magnetic system 1212 formation,Can also be different,But its magnetic field intensity to be significantly less than the magnetic field intensity in high-intensity magnetic field district,So also can reach the good effect identical with embodiment one,For the sorting magnetic system 2 18 in the present embodiment,Sorting magnetic system 2 18 can be horizontal Tile distribution,Also can indentation arrangement,Can also be identical with the arrangement mode of the sorting magnetic system 1 in the present embodiment.
Embodiment five
Embodiment five is identical with embodiment three and embodiment four, it is different in that, sorting magnetic system 1 in the present embodiment is alternately arranged is constituted by multiple little magnetic system and carrying roller 13, in other words, the high-intensity magnetic field district of composition sorting magnetic system 1 of little magnetic system, and carrying roller 13 composition sorts the non-magnetic place of magnetic system 1, as shown in Figure 5 and Figure 6, the carrying roller 13 gap location between adjacent two little magnetic systems, the gap length of gap location is less.nullDuring magnetic separation,Magnetic material 20 first passes through first-level transport belt 4 and is delivered to the high-intensity magnetic field district scope of sorting magnetic system 1,Magnetic material 20 is picked up,And be attached on one-level sorting belt 3,The transport of belt 3 is sorted by one-level,When magnetic material 20 enters to the lower section of carrying roller 13,Effect due to de-magnetic,First weakly magnetic material 202 and pole weakly magnetic material 203 sort belt 3 from one-level and fall to first-level transport belt 4,And strongly magnetic material 201 is after losing magnetic attraction gradually,Parabolic motion will be done by self gravitation effect,Owing to carrying roller 13 is positioned at the gap location between two little magnetic systems,And the gap length of gap location is less,After non-magnetic place thrown by strongly magnetic material 201,Will enter to when it does not also drop down onto on first-level transport belt 4 within the scope of the magnetic field intensity of next little magnetic system,And picked up immediately,As shown in Figure 5 and Figure 6,Now,The weakly magnetic material 202 falling into first-level transport belt 4 can be picked up again,So by sorting constantly the picking up-fall of magnetic system 1-pick up process,Realize the repeatedly sorting to magnetic material 20,It also can reach the good effect that the various embodiments described above are identical.Additionally, magnetic field intensity between the two little magnetic systems that adjacent spaces is arranged can be identical, it is also possible to different, when its magnetic field intensity is identical, on the whole, the magnetic field distribution sorting magnetic system 1 is the strength distribution effect of a low-intensity magnetic field district (effect in carrying roller region be similar to);When its magnetic field intensity difference, in the two little magnetic systems that adjacent spaces is arranged, direction along magnetic material conveying, the magnetic field intensity of little magnetic system formerly is more than the magnetic field intensity of posterior little magnetic system, as schemed the magnetic field intensity magnetic field intensity more than little magnetic system 1202 of medium and small magnetic system 1201, show as on the whole, the Distribution of Magnetic Field of sorting magnetic system 1 is not only strong and weak spaced apart, successively decrease by the gradient that dies down by force in its magnetic field intensity of direction carried along magnetic material 20, certainly, the arrangement of its little magnetic system can be with being arranged side by side, as shown in Figure 5, can also be that ladder is arranged, as shown in Figure 6.
Should be appreciated that the building form of sorting magnetic system 1 and sorting magnetic system 2 18 and Distribution of Magnetic Field mode can carry out multiple combination, and the good effect that the form of this multiple combination reaches is generally the same, therefore fall within protection scope of the present invention.
In the above-described embodiments; two grades of sorting belts 5 and two-stage conveying belt 6 form multi-stage magnetic separation device; the lower of two-stage conveying belt 6 can set several multi-stage magnetic separation devices; to obtain the product of multiple different grade; in actual production; it is actually needed according to scene; as relatively low in some mineral grade or higher; needs carry out repeatedly throwing tail or reducing throwing tail; can suitably increase or reduce one group of concentration equipment; it also can reach the good effect of above-mentioned embodiment, and therefore, the change in this structure also should fall within protection scope of the present invention.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.

Claims (12)

1. a serial graded magnetic separator, including frame (2), it is characterised in that set one-level sorting belt (3), first-level transport belt (4), two grades of sortings belt (5) and two-stage conveying belt (6) in described frame (2) from top to bottom successively;Described one-level sorting belt (3) is positioned at the lower section of charging aperture (1), the delivery end of one-level sorting belt (3) is provided with Pao Wei mechanism one (7), it is provided with sorting magnetic system one (12) inside the lower belt of described one-level sorting belt (3), between described Pao Wei mechanism one (7) and sorting magnetic system one (12), is provided with demagnetizing region;Described one-level sorting belt (3) is connected with first-level transport belt (4), and the feeding end of described first-level transport belt (4) covers the unloading range of Pao Wei mechanism one (7), the delivery end of described sorting magnetic system one (12) covering first-level transport belt (4);Described first-level transport belt (4) be connected with two grades sorting belt (5), the feeding end of described two grades of sortings belt (5) covers the delivery end of first-level transport belt (4), the delivery end of described two grades of sortings belt (5) is provided with Pao Wei mechanism two (8), two grades of sortings belt (5) be connected with two-stage conveying belt (6), the feeding end of described two-stage conveying belt (6) covers the unloading range of Pao Wei mechanism two (8).
2. serial graded magnetic separator as claimed in claim 1, it is characterised in that be provided with sorting magnetic system two (18) inside the lower belt of two grades of sortings belt (5).
3. serial graded magnetic separator as claimed in claim 1, it is characterized in that, described sorting magnetic system one (12) is provided with the field regions that multiple magnetic field intensity is different, the outside of sorting magnetic system one (12) is additionally provided with magnetic system governor motion (19), and the magnetic field intensity that the position of each little magnetic system can be adjusted guaranteeing between adjacent little magnetic system by described magnetic system governor motion (19) is different.
4. serial graded magnetic separator as claimed in claim 3, it is characterised in that described sorting magnetic system one (12) is made up of multiple little magnetic systems, is adjacent to the magnetic field intensity between little magnetic system different.
5. serial graded magnetic separator as claimed in claim 4, it is characterised in that the gap location between adjacent two little magnetic systems is provided with carrying roller (13).
6. serial graded magnetic separator as claimed in claim 2, it is characterised in that sorting magnetic system two (18) is provided with the field regions that multiple magnetic field intensity is different.
7. serial graded magnetic separator as claimed in claim 1, it is characterised in that described Pao Wei mechanism one (7) includes a magnetization wheel one (9), is provided with fixing magnetic system in described magnetization wheel one (9).
8. serial graded magnetic separator as claimed in claim 1, it is characterised in that described Pao Wei mechanism two (8) includes a magnetization wheel two (11), is provided with fixing magnetic system in described magnetization wheel two (11).
9. serial graded magnetic separator as claimed in claim 1, it is characterised in that be provided with carrying roller (13) inside the upper belt of one-level sorting belt (3) and inside the upper belt of two grades of sortings belt (5).
10. the tandem stage magnetic separator as described in one of claim 1-9, it is characterized in that, the outside of Pao Wei mechanism one (7) is correspondingly provided with mine tailing mouth (23), the delivery end of sorting magnetic system one (12) is provided with concentrate mouth (21), outside correspondence mine tailing mouth (23) of Pao Wei mechanism two (8), delivery end correspondence mine tailing mouth (23) of two-stage conveying belt (6), it is provided with demagnetizing region between Pao Wei mechanism one (7) and sorting magnetic system one (12), the feeding end of first-level transport belt (4) covers the unloading range of Pao Wei mechanism one (7), sorting magnetic system one (12) covers the delivery end of first-level transport belt (4);It is provided with demagnetizing region between Pao Wei mechanism two (8) and sorting magnetic system two (18), the feeding end of two-stage conveying belt (6) covers the unloading range of Pao Wei mechanism two (8), and sorting magnetic system two (18) covers the delivery end of two-stage conveying belt (6) and is connected with middle mine mouth (22) at the delivery end sorting magnetic system two (18).
11. serial graded magnetic separator as claimed in claim 10, it is characterised in that two grades of sortings belt (5) and two-stage conveying belt (6) form multi-stage magnetic separation device, two-stage conveying belt (6) be connected with several multi-stage magnetic separation devices.
12. serial graded magnetic separator as claimed in claim 11, it is characterised in that described serial graded magnetic separator is applicable to the sorting of breeze after high-pressure roller mill extrudes.
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CN109530084A (en) * 2018-12-03 2019-03-29 河北地质大学 A kind of classification of coal sorts integrated multistage dry method permanent magnetic separator with ladder

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CN109530084A (en) * 2018-12-03 2019-03-29 河北地质大学 A kind of classification of coal sorts integrated multistage dry method permanent magnetic separator with ladder
CN109530084B (en) * 2018-12-03 2020-02-11 河北地质大学 Grading and stepped separation integrated multistage dry method permanent magnetic separator for coal

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