CN115090413A - Permanent magnet three-face extrusion magnetic system and dry-type strong magnetic separator - Google Patents
Permanent magnet three-face extrusion magnetic system and dry-type strong magnetic separator Download PDFInfo
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- CN115090413A CN115090413A CN202210697043.4A CN202210697043A CN115090413A CN 115090413 A CN115090413 A CN 115090413A CN 202210697043 A CN202210697043 A CN 202210697043A CN 115090413 A CN115090413 A CN 115090413A
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- 238000001125 extrusion Methods 0.000 title claims abstract description 44
- 239000006148 magnetic separator Substances 0.000 title claims abstract description 24
- 238000000926 separation method Methods 0.000 claims description 22
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000009471 action Effects 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000006246 high-intensity magnetic separator Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000004094 preconcentration Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION 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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
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Abstract
The invention relates to the technical field of magnetic separators, in particular to a permanent magnet three-face extrusion magnetic system and a dry type strong magnetic separator. The permanent magnet three-surface extrusion magnetic system comprises a main magnetic pole, a leakage-stopping magnetic pole and a magnetic conduction plate; the main magnetic poles and the magnetic conduction plates are alternately arranged, and a leaking stoppage magnetic pole is arranged between the adjacent main magnetic poles and is positioned at one end of the magnetic conduction plates; the main magnetic poles on two sides of the same magnetic conduction plate and the magnetic properties of the leaking stoppage magnetic poles at the end part of the magnetic conduction plate towards the surface of the magnetic conduction plate are the same. The three-surface extrusion magnetic system of the permanent magnet utilizes the leaking stoppage magnetic pole to extrude the magnetic force lines which are diffused inwards to the outer surface of the magnetic system, almost all the magnetic force lines of the three-surface axial extrusion magnetic system structure are released from one end of the magnetic conduction plate in a concentrated mode, the magnetic force lines at the other end are few, the magnetic field intensity on the magnetic conduction plate is greatly improved, and the magnetic field intensity and the magnetic field depth on the surface of the magnetic system are improved.
Description
Technical Field
The invention relates to the technical field of magnetic separators, in particular to a permanent magnet three-face extrusion magnetic system and a dry type strong magnetic separator.
Background
In order to realize the high-efficiency pre-concentration of coarse-fraction weakly magnetic ores, improve the recovery rate of pre-enriched concentrate TFe, develop a novel high-magnetic-force permanent magnetic circuit technology, develop a dry-type strong magnetic separator for separating coarse-fraction weakly magnetic ores and realize the high-efficiency pre-enrichment and resource utilization of low-grade weakly magnetic refractory iron ores.
The existing magnetic separator is generally divided into a permanent magnet roller type magnetic separator and a permanent magnet drum type magnetic separator.
The permanent magnet roller type magnetic separator adopts an extrusion type magnetic system formed by axially staggered arrangement of neodymium iron boron magnetic materials and magnetic conductive materials, the magnetic induction intensity of the surface of a magnetic roller is high and can reach about 1.4T, and the magnetic field attenuation is very fast, so that the action depth of the magnetic field is relatively small, and a high magnetic force area is concentrated within 3mm of the surface of the magnetic system. It has the following disadvantages: the magnetic field attenuation is fast, the magnetic field action depth is small, the magnetic field can only be used for sorting minerals with small granularity, and the good recovery rate of coarse-particle weakly magnetic ores is difficult to ensure.
The permanent magnetic drum type magnetic separator is mainly used for pre-separation and tailing discarding of large medium and strong magnetic minerals, the magnetic field intensity can reach about 600mT, and in order to guarantee high magnetic field intensity, high-performance magnetic materials and large magnetic pole height are adopted, the equipment is large in handling capacity, and the separation size fraction is wide. It has the following disadvantages: the magnetic field gradient is small, the magnetic field force is low, and weak magnetic iron ore cannot be fully recovered.
In the conventional two-sided axial-extrusion magnetic circuit structure, because both ends of the magnetic conductive plate (refer to fig. 1 specifically) are in an open state, magnetic lines of force can be simultaneously emitted from both ends, which reduces the magnetic flux density at one end of the magnetic conductive plate, and reduces the magnetic field on the surface of the cylinder or the roller body.
Disclosure of Invention
A first object of the present invention is to provide a permanent magnet three-sided extrusion magnetic system, which can solve the problems existing in the prior art;
a second object of the present invention is to provide a dry type high-intensity magnetic separator using the permanent magnet three-sided extrusion magnetic system as described above.
The invention provides a permanent magnet three-surface extrusion magnetic system, which comprises a main magnetic pole, a leaking stoppage magnetic pole and a magnetic conduction plate;
the main magnetic poles and the magnetic conduction plates are alternately arranged, and the leakage stopping magnetic poles are arranged between the adjacent main magnetic poles and are positioned at one end of the magnetic conduction plates;
the main magnetic poles on two sides of the same magnetic conduction plate and the magnetic properties of the leaking stoppage magnetic poles at the end part of the magnetic conduction plate towards the surface of the magnetic conduction plate are the same.
Preferably, the main magnetic pole, the leaking stoppage magnetic pole and the magnetic conduction plate are arranged in a fitting mode.
Preferably, the permanent magnet three-sided extrusion magnetic system further comprises a main shaft and a magnetic pole fixing plate;
the magnetic pole fixing plate is fixedly connected with the main shaft, and the leaking stoppage magnetic pole and the magnetic conduction plate are arranged on the magnetic pole fixing plate.
Preferably, the magnetic conducting plate is welded and fixed with the magnetic pole fixing plate;
the leakage stoppage magnetic pole is fixed on the magnetic pole fixing plate through a bolt, and the main magnetic pole is positioned on the side surfaces of the magnetic conduction plate and the leakage stoppage magnetic pole and is fixed in a sticking mode.
Preferably, the magnetic conduction plate and the leaking stoppage magnetic pole which are positioned on the same magnetic pole fixing plate, and the main magnetic pole which is stuck on the magnetic conduction plate and the leaking stoppage magnetic pole form a magnetic pole group;
the plurality of magnetic pole groups are arranged on the main shaft and are distributed along the axial direction of the main shaft;
the magnetic pole groups at two ends of the plurality of magnetic pole groups are connected through the compression screw.
Preferably, the partial structures of the magnetic conduction plate and the leaking stoppage magnetic pole are arranged between two adjacent main magnetic poles, and the widths of the magnetic conduction plate and the leaking stoppage magnetic pole are the same.
Preferably, the ratio of the height of the magnetic conduction plate to the height of the main pole is 0.5-0.8.
Preferably, the width of the magnetic conduction plate and the width of the main magnetic pole are 1: 4.
A dry type strong magnetic separator comprises at least two magnetic cylinders; and the permanent magnet three-surface extrusion magnetic system is arranged in part of the magnetic cylinder.
Preferably, the dry-type strong magnetic separator comprises two magnetic cylinders, wherein the two magnetic cylinders are an upper magnetic cylinder and a secondary separation magnetic cylinder respectively;
the permanent magnet three-surface extrusion magnetic system is arranged in the secondary separation magnetic cylinder.
Has the advantages that:
the magnetic system is extruded from three sides of the permanent magnet to the outer surface of the magnetic system by using the leaking stoppage magnetic poles, almost all the magnetic lines of force of the structure of the magnetic system are extruded from one end of the magnetic conduction plate in the axial direction from three sides, and the magnetic lines of force at the other end are few, so that the magnetic field intensity on the magnetic conduction plate is greatly improved, and the magnetic field intensity and the magnetic field depth on the surface of the magnetic system are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a magnetic energy distribution diagram of a two-sided axial extrusion magnetic system;
FIG. 2 is a three-sided extruded magnetic system structure according to an embodiment of the present invention;
FIG. 3 is a three-sided extruded magnetic energy distribution plot according to an embodiment of the present invention;
FIG. 4 is a three-sided extruded magnetic system model diagram according to an embodiment of the present invention;
fig. 5 is a magnetic field strength variation curve of the size variation of the magnetic conductive plate according to the embodiment of the present invention;
FIG. 6 is a comparison graph of the decay curves of the three magnetic system magnetic fields (the main pole has a fixed thickness);
FIG. 7 is a diagram showing a comparison of magnetic fields with a distance of 10 to 50mm from a magnetic system (with a fixed main pole thickness) according to an embodiment of the present invention;
FIG. 8 is a magnetic field profile for varying values of leakage blocking pole H1 according to an embodiment of the present invention;
FIG. 9 is a three-sided axial extrusion magnetic system structure diagram provided in accordance with an embodiment of the present invention;
fig. 10 is a schematic view of a magnetic pole fixing plate and a magnetic conducting plate according to an embodiment of the present invention;
FIG. 11 is a schematic view of a pole mounting set provided in accordance with an embodiment of the present invention;
fig. 12 is a schematic structural view of a channelized ore feeding reinforced separation technology based on an axial squeezing magnetic field characteristic according to an embodiment of the present invention;
fig. 13 is a schematic diagram of a double-cylinder or multi-cylinder dry-type strong magnetic separator according to an embodiment of the present invention.
Description of reference numerals:
1: main magnetic pole, 2: leaking stoppage magnetic pole, 3: magnetic conduction plate, 4: magnetic pole fixing plate, 5: a main shaft, 6 and a material blocking block; 7. a flow guide block 8 and a magnetic cylinder.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "coupled" are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
As shown in fig. 2 to 4, and fig. 9 to 11: in the embodiment, a permanent magnet three-sided extrusion magnetic system is provided, which comprises a main magnetic pole 1, a leaking stoppage magnetic pole 2 and a magnetic conduction plate 3.
The main magnetic poles 1 and the magnetic conduction plates 3 are alternately arranged, the leakage stopping magnetic poles 2 are arranged between the adjacent main magnetic poles 1, and the leakage stopping magnetic poles 2 are positioned at one ends of the magnetic conduction plates 3.
The main magnetic poles 1 positioned at two sides of the same magnetic conduction plate 3 and the magnetic properties of the leaking stoppage magnetic poles 2 at the end part of the magnetic conduction plate 3 facing the surface of the magnetic conduction plate 3 are the same.
In the embodiment, the permanent magnet three-surface extrusion magnetic system utilizes the leaking stoppage magnetic pole 2 to extrude the inwardly divergent magnetic force lines to the outer surface of the magnetic system, almost all the magnetic force lines of the three-surface axial extrusion magnetic system structure are intensively released from one end of the magnetic conduction plate 3, the magnetic force lines at the other end are few, so that the magnetic field intensity on the magnetic conduction plate 3 is greatly improved, and the magnetic field intensity and the magnetic field depth on the surface of the magnetic system are improved.
The magnetic force lines are released from one end of the magnetic conduction plate 3 in a concentrated way, and the magnetism of the magnetic conduction plates 3 arranged in sequence is changed alternately.
The main magnetic pole 1, the leaking stoppage magnetic pole 2 and the magnetic conduction plate 3 are arranged in a laminating way. Specifically, the main magnetic pole 1, the leaking stoppage magnetic pole 2 and the magnetic conduction plate 3 are attached to each other in a seamless mode, and the magnetic field extrusion effect is guaranteed.
The permanent magnet three-side extrusion magnetic system also comprises a main shaft 5 and a magnetic pole fixing plate 4.
The magnetic pole fixing plate 4 is fixedly connected with the main shaft 5, and the leaking stoppage magnetic pole 2 and the magnetic conduction plate 3 are arranged on the magnetic pole fixing plate 4.
The magnetic conduction plate 3 is welded and fixed with the magnetic pole fixing plate 4, the leaking stoppage magnetic pole 2 is fixed on the magnetic pole fixing plate 4 through a bolt, and the main magnetic pole 1 is positioned on the side surfaces of the magnetic conduction plate 3 and the leaking stoppage magnetic pole 2 and fixed in a sticking mode.
In order to further explain the above permanent magnet three-sided extrusion magnetic system, in this embodiment, a specific assembling process of the above permanent magnet three-sided extrusion magnetic system is also provided:
after the magnetic pole fixing plate 4 and the magnetic conduction plate 3 are assembled and welded, the leaking stoppage magnetic pole 2 is fixed at the installing position of the leaking stoppage magnetic pole 2 of the magnetic pole fixing plate 4 by bolts, the main magnetic pole 1 is pushed into the installing position of the side surface of the magnetic conduction plate 3 from the side surface of the magnetic conduction plate 3 by a tool, and the main magnetic pole is fixed by adhesion.
The magnetic conduction plate 3 and the leaking stoppage magnetic pole 2 which are positioned on the same magnetic pole fixing plate and the main magnetic pole 1 which is stuck on the magnetic conduction plate 3 and the leaking stoppage magnetic pole 2 form a magnetic pole group, a plurality of magnetic pole groups are arranged on the main shaft 5 and are axially distributed along the main shaft 5, and the magnetic pole groups positioned at two ends in the plurality of magnetic pole groups are connected through the compression screw.
The partial structures of the magnetic conduction plate 3 and the leaking stoppage magnetic pole 2 are arranged between two adjacent main magnetic poles 1, and the widths of the magnetic conduction plate 3 and the leaking stoppage magnetic pole 2 are the same.
Specifically, the magnetic pole group is of a fan-shaped structure, the main shaft 5 is used as a main supporting point in the axial direction of the magnetic pole group, the main shaft 5 is provided with a locking nut outside the magnetic pole group at the most edge for axial fixation, and the fan-shaped magnetic pole group is reinforced by adopting two groups of symmetrically-arranged compression screws in the outer side far away from the main shaft 5, so that triangular fixation is realized, and the magnetic system achieves the purpose of stable overall structure.
The peak value of the highest magnetic field intensity of the surface of the permanent magnet three-surface extrusion magnetic system reaches more than 1.4T, the magnetic field intensity at the position 5mm away from the surface of the magnetic system is more than 1.1T, the magnetic field intensity of the magnetic system at the position of the magnetic conduction plate 3 corresponding to the separation area is high, the magnetic field depth is good, the magnetic field force along the circumferential direction is more balanced, and weakly magnetic minerals are easy to adsorb.
In order to better utilize the high magnetic force area at the corresponding position of the magnetic conduction plate 3 and avoid the influence of the slightly low magnetic force area at the corresponding position of the center of the main magnetic pole 1 on the recovery of weakly magnetic minerals, when materials reach the surface of the three-surface axial extrusion magnetic cylinder 8, all ore particles are supplied to the high magnetic force area (as the upper end area of the magnetic conduction plate 3 shown in the attached drawing of fig. 3), and the axial canalization is carried out on the ore supply device of the magnetic cylinder 8.
The ratio of the height of the magnetic conductive plate 3 to the height of the main pole 1 is 0.5-0.8. The ratio of the width of the magnetic conduction plate 3 to the width of the main magnetic pole 1 is 1: 4. Parameters of the magnetic conduction plate 3 and the main pole 1 are adopted in the three-surface extrusion magnetic circuit structure, and the specific reasons are as follows:
in the figure:
h-main pole 1 height
W-width of main pole 1
H1-height of leaking stoppage magnetic pole 2
W1 width of leaking stoppage magnetic pole 2
H2-height of magnetic conductive plate 3
W2-width of magnetic conduction plate 3
The design that the magnetic conduction plate 3 and part of the leaking stoppage magnetic poles 2 are positioned between the main magnetic poles 1 is adopted, and the leaking stoppage magnetic poles 2 are as wide as the magnetic conduction plate 3 (W1 is W2), so that the magnetic force lines which are dispersed inwards are extruded to the outer surface of the magnetic system, and the utilization rate of the magnetic flux is improved.
Design of structural parameters of magnetic conduction plate 3
To explore the influence of the size of the magnetic conductive plate 3 on the magnetic field distribution, a magnetic system parameter structure is assumed, and is shown in table 1.
TABLE 1 study table of magnetic system predetermined values of leading magnetic plate 3 parameters
The magnetic systems of different sizes of the magnetic conduction plate 3 are simulated to obtain corresponding magnetic field change curves (as shown in fig. 5).
As can be seen from the figure, the magnetic field intensity increases sequentially as the size of the magnetic conductive plate 3 increases, and the magnetic field intensity is higher when the size of the magnetic conductive plate 3 is about 45 mm. From 50-80 mm, the magnetic field intensity is in a descending trend, and the descending trend is smaller than the curve ascending trend. That is, when the magnetic system size H2: when H is 0.5 to 0.8, the magnetic field intensity is high.
Design of main pole 1 structural parameters
The parameters of the fixed magnetic conduction plate 3 are unchanged, and the thickness parameters of the main magnetic pole 1 are analyzed.
The thickness W of the main pole 1 is set to be constant, the thickness W1 of the magnetic conduction plate 3 and the leaking stoppage pole 2 is changed (W1 is equal to W2), and a W2: three magnetic systems with W equal to 1:3, 1:4 and 1:5 were analyzed.
Since the radial dimension H of the main pole 1 affects the magnetic field strength, the dimension H can be preset to analyze the thickness rule. In the same way, the radial size of the leaking stoppage magnetic pole 2 is preset, and the leakage stoppage magnetic pole is H2: since the magnetic field strength is high when H is 0.5 to 0.65, H2 is set to 50, as shown in table 2.
TABLE 2 table of magnetic system predetermined values of main pole 1 parameters
The three magnetic systems are subjected to simulation, magnetic field attenuation curves of the magnetic systems are obtained respectively, and comparison is carried out, as shown in fig. 6.
As can be seen from the above figure, within the range of 0-10 mm, the magnetic field intensity is as follows from big to small in sequence: the magnetic field intensity is obviously improved when the thickness ratio of the main pole 1 to the magnetic conductive plate 3 is larger than that of the 1:5 magnetic system, the 1:4 magnetic system and the 1:3 magnetic system. In the range of 10 to 50mm, the magnetic field intensity is 1:3 magnetic system, 1:4 magnetic system, 1:5 magnetic system from large to small in sequence, as shown in FIG. 7.
In the simulation situation, when W2 is equal to W1: 4, the magnetic field distribution of the magnetic system is better, and the magnetic pole has higher magnetic field gradient value and better magnetic field action depth compared with the magnetic system.
Design of structural parameters of leaking stoppage magnetic pole 2
And determining that the magnetic field performance is optimal when W2: W is 1:4 through magnetic field simulation, and on the basis, adjusting the radial dimension H1 of the leaking stoppage magnetic pole 2 and researching the influence of the structural parameter change of the leaking stoppage magnetic pole 2 on the magnetic system magnetic field distribution characteristic.
The magnetic field distribution obtained by performing simulation calculation with H1 set to be equal to 30, 40, 50, and 60mm is shown in fig. 8.
As can be seen from fig. 8, the increase of the H1 value of the leaking stoppage magnetic pole 2 has a limited effect on improving the magnetic field strength of the magnetic system, mainly concentrated on the surface of the magnetic system, and the H1 is increased from 30mm to 60mm, and the peak magnetic field strength is almost unchanged, which indicates that the radial dimension H1 of the leaking stoppage magnetic pole 2 has a small distribution on the magnetic field strength.
Fourthly, summarize
The three-face extrusion magnetic circuit structure is designed, the magnetic system size H2: H is 0.5-0.8, when the magnetic pole proportion is 1:4, the magnetic field distribution characteristic is good, and meanwhile, the increase of the size H1 of the leaking stoppage magnetic pole 2 has small effect on improving the magnetic field intensity.
As shown in fig. 12 to 13, in the present embodiment, there is also provided a dry type strong magnetic separator including at least two magnetic cartridges 8; and the permanent magnet three-surface extrusion magnetic system is arranged in part of the magnetic cylinder 8.
In one embodiment, the dry-type strong magnetic separator includes two magnetic cylinders 8, the two magnetic cylinders 8 being an upper magnetic cylinder 8 and a secondary separation magnetic cylinder 8, respectively. The permanent magnet three-surface extrusion magnetic system is arranged in the secondary separation magnetic cylinder 8.
The magnetic cylinder 8 rotates along the pointer under the driving of the driving device, the magnetic system is adjusted to a working position through the magnetic system fixing device during working, sorted materials are uniformly fed to a magnetic field area on the surface of the upper magnetic cylinder 8 through the vibration feeding device arranged outside the device, magnetic ore particles and non-magnetic ore particles move along different tracks along with the rotation of the magnetic cylinder 8 to realize separation, tailings thrown out by the upper magnetic cylinder 8 are fed to a high-magnetic-force magnetic field area on the surface of the lower magnetic cylinder 8 through the feeding material blocking device along an ore separating plate inside the sorting box body to be sorted for the second time, weak magnetic minerals are well recycled through the action of high magnetic force of three-surface axial extrusion magnetic system, scavenged concentrate is obtained, and the tailings after full magnetic recovery are final tailings. A driving motor of the driving device is adjusted by a variable frequency speed control system, the rotating speed of the magnetic cylinder 8 is adjustable, and meanwhile, the ore separation position of the ore separation plate can also be adjusted so as to adapt to the separation requirements of ores with different properties.
The magnetic flux density and the magnetic field action depth are improved by increasing the axial extrusion magnetic circuit of the leaking stoppage magnetic pole 2, the canalization guide flow of the ore feeding material flow is realized by utilizing the canalization ore feeding reinforced separation technology, the ores to be separated are ensured to directly flow into a high magnetic force area on the surface of the separation cylinder for separation, the magnetic energy utilization rate is improved, and the double-cylinder or multi-cylinder dry magnetic separator of the extrusion magnetic system ensures that the weakly magnetic ores are fully collected.
The dry-type strong magnetic separator further comprises a canalization feeding device, the specific canalization feeding device is provided with the guide blocks 7 at a plurality of intervals, the guide blocks 7 are provided with the stop blocks 6, the stop blocks 6 are detachably connected with the guide blocks 7, the stop blocks 6 can be adjusted in angle relative to the guide blocks 7, the fact that ores to be separated completely and directly flow into a high magnetic force area on the surface of the separation barrel to be separated is guaranteed, and weak magnetic ores are guaranteed to be fully collected. Meanwhile, the actual axial position is changed due to the fact that the glue layer is added between the magnetic poles after the magnetic system is axially extruded and actually assembled, and therefore the ore feeding limiting block adopts a mode of adjusting the ore feeding position by adjusting the inclination angle so as to adapt to the change of the position of the high magnetic force area.
The dry-type strong magnetic separator further includes a conventional structure for a magnetic separator such as a mineral separation plate, an adjusting device, a magnetic system fixing device, and a driving device.
In summary, the magnetic separator provided by the embodiment has the following advantages:
(1) the leakage-blocking magnetic poles are added, so that the magnetic flux density and the action depth of a magnetic field are improved, the magnetic field force applied to larger weak magnetic particles in the magnetic field is obviously increased, the upper limit of the granularity of the sorted ore is improved, and the preselection of the larger particle ore is realized;
(2) the channelized ore feeding reinforced separation technology based on the axial extrusion magnetic field characteristics is additionally provided with a limiting block with an adjustable angle, so that the channelized guide flow of ore feeding material flow is realized, the ores to be separated are ensured to directly flow into a high-magnetic-force area on the surface of a separation barrel for separation, the magnetic energy utilization rate is improved, and the weak-magnetic ores are ensured to be fully collected;
(3) the method effectively solves the problem of high-efficiency pre-enrichment of the wide-grade weak-magnetism refractory iron ore, promotes resource development of the low-grade refractory iron ore, is beneficial to guaranteeing the supply of iron ore resources, and has important social significance.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A permanent magnet three-surface extrusion magnetic system is characterized by comprising a main magnetic pole, a leaking stoppage magnetic pole and a magnetic conduction plate;
the main magnetic poles and the magnetic conduction plates are alternately arranged, and a leaking stoppage magnetic pole is arranged between the adjacent main magnetic poles and is positioned at one end of the magnetic conduction plates;
the main magnetic poles on two sides of the same magnetic conduction plate and the magnetic properties of the leaking stoppage magnetic poles at the end part of the magnetic conduction plate towards the surface of the magnetic conduction plate are the same.
2. The permanent magnet three-sided extrusion magnetic system as claimed in claim 1, wherein the main pole, the leaking stoppage pole and the magnetic conductive plate are attached.
3. The permanent magnet three-sided extrusion magnetic system according to claim 1, further comprising a main shaft and a magnetic pole fixing plate;
the magnetic pole fixing plate is fixedly connected with the main shaft, and the leaking stoppage magnetic pole and the magnetic conduction plate are arranged on the magnetic pole fixing plate.
4. The permanent magnet three-sided extrusion magnetic system according to claim 3, wherein the magnetic conductive plate is welded and fixed with the magnetic pole fixing plate;
the leakage stoppage magnetic pole is fixed on the magnetic pole fixing plate through a bolt, and the main magnetic pole is positioned on the side surfaces of the magnetic conduction plate and the leakage stoppage magnetic pole and is fixed in a sticking mode.
5. The permanent magnet three-sided extrusion magnetic system as claimed in claim 4, wherein the magnetic conducting plate and the leaking stoppage magnetic pole on the same magnetic pole fixing plate, and the main magnetic pole adhered to the magnetic conducting plate and the leaking stoppage magnetic pole constitute a magnetic pole group;
the plurality of magnetic pole groups are arranged on the main shaft and are distributed along the axial direction of the main shaft;
the magnetic pole groups at two ends of the plurality of magnetic pole groups are connected through a compression screw.
6. The permanent magnet three-sided extrusion magnetic system as claimed in claim 1, wherein the partial structure of the magnetic conducting plate and the leaking stoppage magnetic pole is disposed between two adjacent main magnetic poles, and the widths of the magnetic conducting plate and the leaking stoppage magnetic pole are the same.
7. The permanent magnet three-sided extrusion magnetic system as claimed in claim 1, wherein the ratio of the height of the magnetic conductive plate to the height of the main pole is 0.5 to 0.8.
8. The permanent magnet three-sided extrusion magnetic system as claimed in claim 1, wherein the width of the magnetic conductive plate and the width of the main pole are 1: 4.
9. A dry type strong magnetic separator is characterized by comprising at least two magnetic cylinders; and a part of the magnetic cylinder is provided with the permanent magnet three-sided extrusion magnetic system as claimed in any one of claims 1 to 8.
10. The dry, strong magnetic separator according to claim 9, comprising two magnetic cartridges, an upper magnetic cartridge and a secondary separation magnetic cartridge, respectively;
the permanent magnet three-surface extrusion magnetic system is arranged in the secondary separation magnetic cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210697043.4A CN115090413A (en) | 2022-06-20 | 2022-06-20 | Permanent magnet three-face extrusion magnetic system and dry-type strong magnetic separator |
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| CN202210697043.4A CN115090413A (en) | 2022-06-20 | 2022-06-20 | Permanent magnet three-face extrusion magnetic system and dry-type strong magnetic separator |
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| CN115090413A true CN115090413A (en) | 2022-09-23 |
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| CN (1) | CN115090413A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101474593A (en) * | 2009-02-02 | 2009-07-08 | 河南理工大学 | Permanent magnet high-field intensity magnetic filter |
| CN201295640Y (en) * | 2008-11-13 | 2009-08-26 | 岳阳大力神电磁机械有限公司 | Three-extrusion strong force permanent magnetic roller type magnetic separator |
| CN202067624U (en) * | 2011-04-16 | 2011-12-07 | 崔实 | Magnetic system of permanent-magnet magnetic separator |
| CN204486027U (en) * | 2015-03-18 | 2015-07-22 | 赣州金环磁选设备有限公司 | Particulate permanent magnet dry type magnetic ore separator in one |
| CN209205535U (en) * | 2018-10-24 | 2019-08-06 | 北矿机电科技有限责任公司 | A kind of intensity magnetic separator using open magnetic circuit permanent-magnet high gradient magnetic system |
-
2022
- 2022-06-20 CN CN202210697043.4A patent/CN115090413A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201295640Y (en) * | 2008-11-13 | 2009-08-26 | 岳阳大力神电磁机械有限公司 | Three-extrusion strong force permanent magnetic roller type magnetic separator |
| CN101474593A (en) * | 2009-02-02 | 2009-07-08 | 河南理工大学 | Permanent magnet high-field intensity magnetic filter |
| CN202067624U (en) * | 2011-04-16 | 2011-12-07 | 崔实 | Magnetic system of permanent-magnet magnetic separator |
| CN204486027U (en) * | 2015-03-18 | 2015-07-22 | 赣州金环磁选设备有限公司 | Particulate permanent magnet dry type magnetic ore separator in one |
| CN209205535U (en) * | 2018-10-24 | 2019-08-06 | 北矿机电科技有限责任公司 | A kind of intensity magnetic separator using open magnetic circuit permanent-magnet high gradient magnetic system |
Non-Patent Citations (2)
| Title |
|---|
| 王芝伟 等: "干式筒式磁选机联用技术研究及实践", 《有色金属( 选矿部分)》, no. 2, 28 February 2018 (2018-02-28), pages 82 - 86 * |
| 王芝伟 等: "永磁强磁选机磁系仿真模拟及结构优化", 《有色金属( 选矿部分)》, no. 5, 31 May 2015 (2015-05-31), pages 73 - 76 * |
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