CN201251977Y - Combined magnetic group with like polarity magnets - Google Patents
Combined magnetic group with like polarity magnets Download PDFInfo
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- CN201251977Y CN201251977Y CNU2008201084305U CN200820108430U CN201251977Y CN 201251977 Y CN201251977 Y CN 201251977Y CN U2008201084305 U CNU2008201084305 U CN U2008201084305U CN 200820108430 U CN200820108430 U CN 200820108430U CN 201251977 Y CN201251977 Y CN 201251977Y
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Abstract
The utility model relates to a combined magnetic group with like polarity magnets, which is characterized by comprising at least one layer of steel plate, at least one layer of ferrite which is fixed on the steel plate, and at least one layer of neodymium iron, wherein each layer of ferrite consists of at least one ferrite magnetic block; the layer of neodymium iron is fixed on the layer of ferrite, each layer of neodymium iron consists of at least one neodymium iron boron block and at least one ferrite block which are arranged at intervals, wherein the same magnetic poles of the neodymium iron boron block and the ferrite block are toward the same direction. The combined magnetic group with like polarity magnets has reasonable structure, is adhered firmly and not cracked, has large size and high appraisal, and is suitable for being applied to a magnetic plant of an ultra-large type lift type de-ironing separator.
Description
Technical field
The utility model belongs to magnetic plant with magnetic group field, relates to a kind of compound magnetic group of same polarity magnet of highfield of size super large.
Background technology
Tramp iron separator is a kind of magnetic plant that can produce the strong magnetic field attraction, be used for to be mingled in the ferromagnetism contaminant removal of non-magnetic material, be widely used in industries such as metallurgy, mine, coal separation, generating, pottery, glass, cement, building materials and chemical industry, in emerging garbage disposal industry, also need to utilize the iron and steel in the tramp iron separator recovery refuse.
Along with development of science and technology, travelling belt is more and more wideer, and belt speed is also more and more higher, the bed of material is also more and more thicker, treating capacity is also increasing, and removal of impurities requires also more and more higher (the Ex-all rate requires to reach more than 98%), thereby the structural behaviour of tramp iron separator and magnetic field intensity etc. are all had higher requirement.And present domestic magnetic separator is generally 260mm * 170mm with the size of magnetic pole (magnetic group), three kinds of 170mm * 130mm and 255mm * 130mm etc., and highly all within 180mm, full ferrite magnetic pole table field is within 1800Gs; Clearly the tramp iron separator of this size is difficult to satisfy above-mentioned requirement.
At present, adopt the magnetic group of single ferrite preparation to be difficult to satisfy the requirement of high magnetic field intensity, in the magnetic group, add rare earth permanent-magnetic material (for example neodymium iron boron) after, magnetic field intensity is greatly improved.95202939.1 number utility model patent discloses a kind of suspension type rare earth permanent magnet tramp iron separator, the employed magnet of this tramp iron separator (being the magnetic group) is the compound rectifier excitation magnet that is become with some ferrite combination by a neodymium iron boron, wherein, ferrite is formed channel oxygen piece, and neodymium iron boron is positioned at the center of channel oxygen piece.A neodymium iron boron only is set in the centre in the compound rectifier excitation magnet that above-mentioned patent provided, and the table field intensity part of magnet working face is inhomogeneous, and core is than higher, and peripheral part is lower, and the region list field intensity that the decentre part is far away more is low more; The tramp iron separator that utilizes this compound rectifier excitation magnet to make, its each position is inhomogeneous to the removal ability of ferromagnetic substance, and the removal ability of core is stronger, and the removal ability of peripheral part is not high, this defective is more obvious with the increase meeting of magnet size.Required large scale tramp iron separator not only requires to have higher table field at present, and require the table field evenly to distribute, so that make the tramp iron separator various piece all have identical removal ability (deironing ability) to ferromagnetic substance, thereby make tramp iron separator when being applied to the travelling belt of broad, can have higher de-ironing efficiency, reach de-ferrous effect preferably.Obviously, the tramp iron separator that provides according to above-mentioned patent is difficult to reach these requirements.
In addition, the stock size of the ndfeb magnet that can obtain is about 85mm * 65mm at present, and height is about 18mm, and for the bigger ndfeb magnet of size, the manufacturing expense costliness is difficult to be applied to the magnetic group of oversize; And the tramp iron separator that above-mentioned patent provides only comprises a neodymium iron boron, and the size of the tramp iron separator of Huo Deing also is difficult to the scope that reaches very big at last, and this also makes it be difficult to satisfy the requirement of present industrial production to the large tracts of land high magnetic field intensity.
The magnetic group or the tramp iron separator product that also do not occur at present oversize in the art, but, more and more urgent in the actual production for the demand of magnetic group with high table field and tramp iron separator, obtain the said goods, just must substantially exceed the magnetic group that has the magnetic packet size now by preparation size, guarantee that simultaneously the magnetic group has uniform table field, this is one of problem demanding prompt solution in this area.
The utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of same polarity magnet compound magnetic group, utilize effective combination of neodymium iron boron and ferrite magnetic patch, can become the compound magnetic group in highfield of size super large, by magnet (magnetic patch) compoiste adhering is become sound construction, has the compound magnetic group of large-size and higher magnetic field intensity.
The purpose of this utility model also is to provide a kind of tramp iron separator that is provided with the compound magnetic group of same polarity magnet, and it has the table field of higher-strength, and working face table field distribution uniformity, and this tramp iron separator has the structure of firm stable and stronger deironing ability.
For achieving the above object, the utility model provides a kind of same polarity magnet compound magnetic group, and it comprises: one deck iron plate at least; At least one deck ferrite layer, this ferrite layer is fixed on the aforementioned iron plate, and every layer of ferrite layer formed by at least one ferrite magnetic patch; At least one deck neodymium iron layer, this neodymium iron layer is fixed on the aforementioned ferrite layer, and every layer of neodymium iron layer rearranges by at least one ndfeb magnet and at least one ferrite magnetic block gap; Wherein, the same magnetic pole of all ndfeb magnets and ferrite magnetic patch is towards same direction.
Neodymium iron layer can be rearranged by polylith ndfeb magnet and ferrite magnetic block gap, and promptly in the row of each in each layer neodymium iron layer and each row, arrange ndfeb magnet and ferrite magnetic block gap, and the magnetic patch of same nature does not contact each other.According to the difference of the magnetic packet size that finally will obtain, can select the magnetic patch of different size and quantity, above-mentioned selection is as the criterion can obtain the compound magnetic group of well-set same polarity magnet.According to scheme of the present utility model, in neodymium iron layer, each piece neodymium iron boron can both form the zonule with higher magnetic field intensity (showing the field) with the ferrite around it; See on the whole, the zone that all these zonules with higher magnetic field intensity are together with each other and just can form uniformly, have higher magnetic field intensity forms uniform and stable high-strength kilsyth basalt field at the working face (being the one side that is bonded with neodymium iron layer in the magnetic group) of magnetic group.And the tramp iron separator that is provided with this magnetic group just can have higher deironing ability, and the deironing ability uniformity of the each several part of its working face.
According to concrete technical scheme of the present utility model, the compound magnetic group of same polarity magnet can comprise two-layer at least ferrite layer, at least being set to the staggered floor bonding between the ferrite magnetic patch in the ferrite magnetic patch of one deck ferrite layer core and the adjacent ferrite layer becomes the reinforcement layer, and the edge of each layer ferrite layer keeps alignment.The ferrite layer core is meant in each layer ferrite layer, the part except outermost ferrite magnetic patch.
According to concrete technical scheme of the present utility model, in the compound magnetic group of the same polarity magnet that the utility model provides, can utilize the staggered floor bonding technology that the reinforcement layer is set, preferably include 1-3 layer reinforcement layer.
According to specific embodiments of the present utility model, preferably, in the compound magnetic group of same polarity magnet, be benchmark with described iron plate, the 2nd layer and/or the 3rd layer of described ferrite layer are the reinforcement layer.Wherein, the ferrite layer of contact iron plate is the 1st a layer of ferrite layer, and this sentences the name of which layer ferrite layer only is convenient the description, does not represent ferrite layer itself necessarily to have difference.
In the reinforcement layer, ferrite magnetic patch of each row covers below it crack between adjacent ferrite magnetic patch in one deck ferrite layer respectively; Here limiting " each row " only is for convenience of description, it is meant that in a lateral direction magnetic patch covers the crack between the adjacent magnetic patch of lower floor, but description is not represented and cannot in a longitudinal direction or similarly be provided with in the horizontal and vertical directions simultaneously like this.As known general knowledge, generally laterally calling row, vertically be called row, magnetic patch layer (for example ferrite layer or neodymium iron layer) is rotated to an angle (for example 90 degree or 270 degree) afterwards, can make and laterally become vertically, make vertically to become laterally, therefore, be described as " each row " and " laterally " here and also comprise " each row " and " vertically " related scheme.Preferably, the ferrite magnetic patch center in the reinforcement layer places the crevice place between the magnetic patch of one deck below it, and the effect that strengthens the crevice place field intensity is arranged.Therefore, use the reinforcement layer can make the table field distribution of the compound magnetic group of whole same polarity magnet more even, but can reduce a table peak value; In the utility model optimized technical scheme, the reinforcement layer can guarantee like this that for being the 2nd layer of ferrite layer of benchmark with the iron plate and being ferrite layer between the 4th layer of ferrite layer of benchmark with neodymium iron layer the table field that obtains the compound magnetic group of same polarity magnet at last has higher table field peak value.In optimal technical scheme of the present utility model, with the iron plate is benchmark, the 2nd layer and/or the 3rd layer of ferrite layer are the reinforcement layer, can strengthen the adhesion firmness of magnetic group, make the magnetic group after using binding agent, can form a complete magnetic group that combination is firm, simultaneously, setting can not exert an influence to the integral body table field of magnetic group like this.
According to specific embodiments of the present utility model, the compound magnetic group of same polarity magnet can comprise at least five layers of ferrite layer, and wherein, the reinforcement layer is being the 2nd layer of ferrite layer of benchmark with the iron plate and is being between the 4th layer of ferrite layer of benchmark with neodymium iron layer.One deck ferrite layer and the three first layers ferrite layer under the neodymium iron layer of contact iron plate are not the reinforcement layer, one deck ferrite layer that promptly contacts iron plate is not arranged to the reinforcement layer, and the three layers of ferrite layer (one deck ferrite layer that contacts with neodymium iron layer is a ground floor) that begin number from one deck ferrite layer that contacts with neodymium iron layer are not arranged to the reinforcement layer.
For guaranteeing that the compound magnetic group of whole same polarity magnet has complete shape, in the ferrite layer (reinforcement layer) that adopts the staggered floor adhesive method to make, the place, two ends of each row magnetic patch, (size is less with respect to the magnetic patch of core can to adopt the little magnetic patch of size, the magnetic patch that this size is little can be formed by the magnetic patch cutting of core), the ferrite magnetic patch that is each row two ends is the little magnetic patch of size, make the identical length of each row in the different ferrite layers etc., make the edge of each layer ferrite layer keep alignment, guarantee that the compound magnetic group of same polarity magnet that the bonding back obtains has complete shape, guarantees the fastness of its structure.
According to concrete technical scheme of the present utility model, preferably, the compound magnetic group of same polarity magnet can have two layers or more neodymium iron layer.A side that is provided with neodymium iron layer in the magnetic group is the working face of magnetic group, and this side is provided with the table field intensity that two-layer or more multi-layered neodymium iron layer can improve the compound magnetic group of same polarity magnet, to satisfy the demand of the higher table of magnetic group field.
According to concrete technical scheme of the present utility model, ndfeb magnet that is adopted and ferrite magnetic patch are cube or rectangular shape.Magnetic patch commonly used is: length x width is the cuboid of 85mm * 65mm; Cube or rectangular shape that the compound magnetic group of same polarity magnet can be made up of above-mentioned ndfeb magnet and ferrite magnetic patch.
According to concrete technical scheme of the present utility model, the size of the compound magnetic group of same polarity magnet that the utility model provides can be length 400-1500mm; Width 400-1500mm; Height 200-600mm.In actual production, the size preferably of the compound magnetic group of same polarity magnet can be plurality of specifications such as 520 millimeters * 510 millimeters * 252 millimeters, 765 millimeters * 520 millimeters * 102 millimeters, 650 millimeters * 510 millimeters * 120 millimeters.
According to concrete technical scheme of the present utility model, in the compound magnetic group of same polarity magnet, be that every layer thickness of the three first layers ferrite layer of benchmark is 17mm-20mm with neodymium iron layer, and the thickness of aforementioned ferrite layer can be for identical or different.The three first layers ferrite layer refers to three layers of ferrite layer of the most close neodymium iron layer; The thickness of other ferrite layers except this which floor is as the criterion with the overall dimensions that satisfies the last compound magnetic group of same polarity magnet that obtains.For guaranteeing the table field intensity of the compound magnetic group of same polarity magnet, neodymium iron layer can not be too thin, and preferred, the thickness of neodymium iron layer can be 17-20mm.
The utility model also provides a kind of suspension type tramp iron separator, and this suspension type tramp iron separator has a housing and the magnetic group of being located in the housing, and this magnetic group is the compound magnetic group of aforesaid same polarity magnet; Housing bottom is a corrosion resistant plate, and combines with the neodymium iron layer of the compound magnetic group of same polarity magnet.
The compound magnetic packet size of the same polarity magnet that the utility model provides is big, by the reinforcement layer is set in the magnetic group, can make magnetic patch be combined together to form firm structure, and the magnetic field that the magnetic patch between the different magnet layers is formed evenly superposes compound, formation has the space magnetic field of higher field intensity, form uniform and stable high-strength kilsyth basalt field on the surface of compound magnetic group, be suitable in large-scale magnetic plant, using, for example the large suspension-type tramp iron separator can make the deironing ability of tramp iron separator be significantly improved.
The tramp iron separator that is provided with the compound magnetic group of above-mentioned same polarity magnet that the utility model provides has higher deironing ability, and the deironing ability uniformity of each several part; Can be at the travelling belt broad, under belt speed is higher, the bed of material is thicker, treating capacity is big, removal of impurities is had relatively high expectations the situation, play consistently removal ability to ferromagnetic substance, obtain de-ferrous effect preferably; And because the enhancing of the table field of tramp iron separator, the thin iron powder that some tiny ironwares of sneaking in the course of processing for raw material and equipment attrition produce and a small amount of ferrotitanium matter mineral etc. all have removes ability preferably, meets the trend that develops to meticulous deironing direction in this area.
Description of drawings
Fig. 1 is the stacking mode schematic diagram of magnetic patch in the ferrite layer of magnetic group.
Fig. 2 is the stacking mode schematic diagram of magnetic patch in the reinforcement layer of magnetic group.
Fig. 3 is the structural representation of the compound magnetic group of same polarity magnet of the utility model embodiment.
Fig. 4 is the arrangement mode schematic diagram of magnetic patch in the neodymium iron layer of the compound magnetic group of same polarity magnet of the utility model embodiment.
Fig. 5 be reinforcement layer shown in Figure 2 and below it one deck ferrite layer along the sectional view of A-A direction among Fig. 2.
Fig. 6 is the schematic diagram that the compound magnetic group of the same polarity magnet of the utility model embodiment is utilized the barricade armoured magnetic field.
The drawing reference numeral explanation:
1, shielding top board, 2, the shielding side plate, 3, shielded backplane, 4, the ferrite magnetic patch, 5, ndfeb magnet, 6, ferrite layer, 7, neodymium iron layer, 8, iron plate, 9, the compound magnetic group of same polarity magnet, 10, the reinforcement layer.
Embodiment
Below describe the enforcement of the utility model scheme and the beneficial effect that is had in detail by specific embodiment, but but can not form any qualification to practical range of the present utility model.
The manufacturing process of compound magnetic group of the same polarity magnet that the utility model provides and tramp iron separator can may further comprise the steps: and monolithic neodymium iron (neodymium iron boron block) magnetizes → ferrite and neodymium iron (ferrite block and ndfeb magnet) are compound joins a pile single square group → single square group and magnetize → and the single square set of shield magnetic line of force is bonded to whole magnetic group → curings back integral body and moves into installation in the tramp iron separator housing, the acquisition tramp iron separator.Wherein, become ndfeb magnet and ferrite magnetic patch respectively after neodymium iron boron block and ferrite block magnetize.
The technology that the utility model is adopted when the compound magnetic group of preparation same polarity magnet comprises: 1, magnetic screen technology; 2, staggered floor bonding technology; 3, strengthen the table field technology.
1, magnetic screen technology: the utility model adopts the ndfeb magnet and the ferrite magnetic patch of same polarity, by being spaced of two kinds of magnetic patch, the powerful repulsion that overcomes between magnet is combined into composite construction, obtain having the oversize magnetic group of high table field, can avoid the gradient magnetic on the space seriously to decay, be fit to the purposes design of magnetic plant magnetic group; Utilize the structure of the present utility model can the infinitely-great same polarity high field intensity of manufacturing dimension magnetic group in theory.
For obtaining said structure, overcome the powerful repulsion between the magnet and guarantee that adhesion strength does not collapse out, in the preparation process of the compound magnetic group of same polarity magnet that the utility model provides, use the magnetic screen technology, the same polarity magnet is bonded to firm large scale magnetic group.According to the method utilization magnetic screen technology, the bonding of same polarity magnet is followed following principle, to reach the better effects in shielding same polarity magnetic field:
1.1, in the bonding operating process of reality, serve as workbench with a big iron desk or iron plate (also can adopt the material or the equipment that can play same effect), both, played the effect in shielding one side magnetic field again as the plane base face of bonding square (rectangular shape or cube shaped) magnetic group; After magnet joined pile, the thick iron plate of a monoblock is covered fully the neodymium iron laminar surface (by joining from low to high pile, magnetic group upper surface is a neodymium iron laminar surface, and top shield plate is to cover at neodymium iron laminar surface) of magnetic group.
1.2, barricade requires: the mechanism of (1) magnetic field shielding mainly is to rely on the low magnetic resistance that high permeability material had, magnetic flux is play a part along separate routes, make the magnetic field of shield inside greatly weaken, therefore, magnetic field shielding should be selected high permeability material for use, as permalloy, adopt pure iron or Q235 steel usually; (2) the thick more armoured magnetic field effect of barricade thickness is good more; (3) the big more armoured magnetic field effect of barricade area is good more; (4) increase the barricade area than increasing barricade thickness instant effect; (5) the barricade monoblock is more effective than scattered armoured magnetic field.
1.3, the side shield technology: magnetic group when bonding, in order to reach better shield effectiveness, can add barricade in magnetic group side, concentrate the magnetic line of force that absorbs magnetic group the two poles of the earth side, can exert an influence to magnetic group working face magnetic field, help the bonding of magnetic group.When magnetic pole top and bottom all cover barricade, add barricade in the magnetic pole side, can reduce pole center table field, can reduce same sex repulsive force, be convenient to join pile operation of bonding.
1.4, shielding do not have influence to magnetic group table field: bonding obtaining after the magnetic group integral body, barricade will be removed, to the not influence of table field of the magnetic group of last acquisition.
2, staggered floor bonding technology:
Fig. 1 signal be that the routine of magnetic patch is piled up method in a kind of ferrite layer of magnetic group.What Fig. 2 illustrated is the method for piling up of the middle magnetic patch of staggered floor tack coat (claiming " reinforcement layer " again) of unidimensional magnetic group.When the reinforcement layer was implemented the staggered floor bonding, the crack (preferably covering the center of crack) that requires single monoblock mark piece (ferrite magnetic patch 4) with reinforcement layer core to cover between the mark piece in the adjacent layer was located, to improve the adhesion strength of magnetic group.As seen from Figure 2, the top and two row ferrite magnetic patch 4 bottom are not provided with the staggered floor bonding, simultaneously, part monoblock mark piece can be processed into fritter, be placed on the place, two ends of each row ferrite magnetic patch of staggered floor bonding by the size difference branch so that whole magnetic group see it all is that monoblock is a standard from six direction.In order not influence the integral surface field intensity of magnetic group, the reinforcement layer generally is placed on the layer second from the bottom of magnetic group.By staggered floor construction, can make magnetic group bonding firmly, be difficult for ftractureing from glue-line.
3, strengthen the table field technology:
Magnetic group bottom (ferrite layer surface) is provided with an iron plate, can be used as magnetic group pole plate.The magnetic group bottom magnetic line of force is concentrated obviously, can improve magnetic group top work surface table field 10%-40%.This method is followed following principle:
3.1, table improves with electrode thickness irrelevant.
3.2, when pole plate area during less than magnetic group base area (that is: the surface area of ferrite layer), table promotes and not to reach capacity, the pole plate area is big more, magnetic group working face table field is big more.
3.3, when the pole plate area equals magnetic group base area, table promotes and to reach capacity, continuing this moment increases the pole plate area, can not promote magnetic group working face table field again.
3.4, certain in the pole plate size, under the certain condition of the wide size of magnetic group leader, along with magnetic group thick (height) degree reduces, the surface strength of magnetic group working face reduces thereupon, the distance of flux loop is shorter and shorter, increases behind the pole plate magnetic group table field and promotes manyly, and shared magnetic group total intensity ratio is increasing.
3.5, add pole plate after, also can promote the space magnetic field of magnetic group working face.
(W * L * H), average table field is the compound magnetic group 9 of large-scale same polarity magnet of 3500GS, and its concrete structure as shown in Figure 3 to be of a size of 520mm * 510mm * 252mm.The compound magnetic group 9 of this same polarity magnet comprises one deck iron plate 8, Floor 12 ferrite layer 6 and two layers of neodymium iron layer 7; Ferrite layer 6 is to be arranged according to mode shown in Figure 1 by ferrite magnetic patch 4 to form, and neodymium iron layer 7 is spaced according to mode shown in Figure 4 by ferrite magnetic patch 4 and ndfeb magnet 5 to be formed; Wherein, with iron plate 8 is that the 2nd layer of ferrite layer of benchmark is reinforcement layer 10, the magnetic patch arrangement mode as schematically shown in Figure 2, itself and following one deck ferrite layer form the staggered floor bonding, the cross section of reinforcement layer 10 one deck ferrite layer below it as schematically shown in Figure 5, the cross section is along A-A direction intercepting shown in Figure 2.The ferrite magnetic patch 4 of one deck ferrite layer as seen from Figure 5, (being reinforcement layer 10) core is arranged on the crack between adjacent two magnetic patch of following one deck ferrite layer; As seen from Figure 2, in reinforcement layer 10, topmost delegation's ferrite magnetic patch and bottom delegation's ferrite magnetic patch be not arranged on the crack between adjacent two magnetic patch of following one deck ferrite layer, the two ends of the ferrite layer of each row, be respectively arranged with a magnetic patch that size is less, make reinforcement layer 10 keep concordant with the edge of other ferrite layers.
The suspension type tramp iron separator comprises compound magnetic group 9 of above-mentioned same polarity magnet and housing, wherein, the compound magnetic group 9 of same polarity magnet is positioned at enclosure interior, this housing is that the corrosion resistant plate by the iron plate at sidewall and top and bottom is welded into, when the compound magnetic of same polarity magnet was assembled into housing, neodymium iron layer (being working face) 7 contacted with the corrosion resistant plate that is positioned at housing bottom.
Form 624 85mm * 65mm * 18mm of compound magnetic group 9 needs of this same polarity magnet (ferrite magnetic patch 4 of 1 * w * h), and 48 85mm * 65mm * 18mm (ndfeb magnet 5 of 1 * w * h), wherein, 6 ferrite magnetic patch are become fritter, be of a size of 42.5mm * 65mm * 18mm.
In the compound magnetic group of the same polarity magnet of present embodiment, neodymium iron layer 7 adopts ferrite magnetic patch 4 and ndfeb magnet 5 compoiste adherings, and arrangement mode as shown in Figure 4.The iron plate 8 that is provided with in the magnetic group can be played the effect that strengthens magnetic group table field working face field intensity.
The preparation method of compound magnetic group of same polarity magnet provided by the utility model and suspension type tramp iron separator can comprise following concrete steps:
1, magnetize ndfeb magnet 5 saturated.
2, ferrite magnetic patch 4 and 5 compound joining of ndfeb magnet are piled up into single square group, the square group is of a size of 260mm * 255mm * 252mm.Adopting the staggered floor bonding technology when joining pile, is that the 11th layer ferrite layer 6 (ferrite layer that contacts with neodymium iron layer 7 is the 1st layer) of benchmark as reinforcement layer 10, bonds according to mode shown in Figure 2 with neodymium iron layer 7; Ferrite magnetic patch 4 in the neodymium iron layer 7 is provided with according to mode shown in Figure 4 at interval with ndfeb magnet 5.
3, magnetize single square group saturated.
4,4 square groups are utilized the magnetic screen technology, be bonded to compound magnetic group 9 integral body of same polarity magnet and (promptly reach the 520mm * 510mm of dimensional requirement * 252mm), then on iron plate 8 of the compound magnetic group of same polarity magnet 9 bottoms (bottom one deck ferrite layer surface) bonding, iron plate 8 areas are equal to or greater than the base area of the compound magnetic group 9 of same polarity magnet, iron plate 8 thickness can be 1-5mm, are preferably 3mm.
Adopt the magnetic screen technology during bonding: the bottom is served as workbench with a big iron desk or iron plate as shielded backplane 3, both as the plane base face of the compound magnetic group of the square same polarity magnet of bonding, plays the effect in shielding one side magnetic field again.The large-area thick shielding top board of a monoblock on the compound magnetic group of the same polarity magnet top cover (preferred iron plate) 1.If the barricade area is less, can cover several barricades more, reduce magnetic field repulsive force.Adopt the side shield technology simultaneously, add shielding side plate (preferred iron plate) 2 in magnetic group side, can strengthen shield effectiveness, reduce homopolarity repulsion, the set-up mode of barricade as shown in Figure 6.
5, after the curing, (present embodiment is a preparation large scale magnetic group to remove barricade, when adopting iron plate as shielded backplane 3, the iron plate (being magnetic group pole plate) that this iron plate can be used as magnetic group bottom keeps, be used to strengthen the table field of magnetic group), the compound magnetic group of same polarity magnet integral body is moved into suspension type tramp iron separator housing center; The housing bottom of suspension type tramp iron separator is a working face, material is a corrosion resistant plate, the high working face (promptly being provided with the face of neodymium iron layer) in magnetic group table field is towards housing bottom, sidewall adopts iron plate to make around the suspension type tramp iron separator housing, wherein iron plate and corrosion resistant plate are welded into cuboid, and core is a cavity.
6, encapsulating in suspension type tramp iron separator housing, the fixing center of the compound magnetic group of large-scale same polarity magnet in housing, the glue that pours into generally adopts epoxy resin.After 24 hours, treat the glue full solidification,, make the suspension type tramp iron separator with the welding rod capping (iron plate of case top) of burn-oning.
7, in the tramp iron separator outside, across the magnetic field intensity of the compound magnetic group of corrosion resistant plate actual measurement same polarity magnet 520mm * 510mm * 252mm, average field-strength reaches 3500Gs.
Embodiment 2
The compound magnetic packet size of same polarity magnet is 390mm * 340mm * 234mm, wherein, with neodymium iron layer is in the three first layers ferrite layer of benchmark, the thickness of ferrite magnetic patch is 20mm, neodymium iron layer general thickness is between the 17-20mm, and the magnetic patch thickness in other ferrite layers is as the criterion with the overall dimensions that guarantees the last compound magnetic group of same polarity magnet that obtains; The preparation method of the set-up mode of the arrangement mode of magnetic patch, reinforcement layer and magnetic group and tramp iron separator is all identical with embodiment 1.
Embodiment 3
The compound magnetic packet size of same polarity magnet is 520mm * 510mm * 102mm, wherein, with neodymium iron layer is in the three first layers ferrite layer of benchmark, the thickness of ferrite magnetic patch is 18mm, neodymium iron layer general thickness is between the 17-20mm, and the magnetic patch thickness in other ferrite layers is as the criterion with the overall dimensions that guarantees the last compound magnetic group of same polarity magnet that obtains; The preparation method of the set-up mode of the arrangement mode of magnetic patch, reinforcement layer and magnetic group and tramp iron separator is all identical with embodiment 1.
The compound magnetic packet size of same polarity magnet is 520mm * 510mm * 252mm, wherein, with neodymium iron layer is in the three first layers ferrite layer of benchmark, the thickness of ferrite magnetic patch (is counted from one deck of contact neodymium iron layer) successively and is 20mm, 17mm and 17mm, neodymium iron layer general thickness is between the 17-20mm, and the magnetic patch thickness in other ferrite layers is as the criterion with the overall dimensions that guarantees the last compound magnetic group of same polarity magnet that obtains; The preparation method of the set-up mode of the arrangement mode of magnetic patch, reinforcement layer and magnetic group and tramp iron separator is all identical with embodiment 1.
The compound magnetic packet size of same polarity magnet is 455mm * 425mm * 85mm, and the thickness of the magnetic patch in all neodymium iron layers and the ferrite layer is 17mm, and the reinforcement layer is set to from the 2nd layer of ferrite layer of ferrite layer of contact iron plate; The preparation method of the arrangement mode of magnetic patch and magnetic group and tramp iron separator is all identical with embodiment 1.
Embodiment 6
The compound magnetic packet size of same polarity magnet is 765mm * 520mm * 102mm, wherein, with neodymium iron layer is in the three first layers ferrite layer of benchmark, the thickness of ferrite magnetic patch is 18mm, neodymium iron layer general thickness is between the 17-20mm, and the magnetic patch thickness in other ferrite layers is as the criterion with the overall dimensions that guarantees the last compound magnetic group of same polarity magnet that obtains; The preparation method of the set-up mode of the arrangement mode of magnetic patch, reinforcement layer and magnetic group and tramp iron separator is all identical with embodiment 1.
The compound magnetic packet size of same polarity magnet is 715mm * 510mm * 102mm, wherein, with neodymium iron layer is in the three first layers ferrite layer of benchmark, the thickness of ferrite magnetic patch (is counted from one deck of contact neodymium iron layer) successively and is 18mm, 17mm and 17mm, neodymium iron layer general thickness is between the 17-20mm, and the magnetic patch thickness in other ferrite layers is as the criterion with the overall dimensions that guarantees the last compound magnetic group of same polarity magnet that obtains; The preparation method of the set-up mode of the arrangement mode of magnetic patch, reinforcement layer and magnetic group and tramp iron separator is all identical with embodiment 1.
Embodiment 8
The compound magnetic packet size of same polarity magnet is 650mm * 510mm * 120mm, wherein, with neodymium iron layer is in the three first layers ferrite layer of benchmark, the thickness of ferrite magnetic patch is 20mm, neodymium iron layer general thickness is between the 17-20mm, and the magnetic patch thickness in other ferrite layers is as the criterion with the overall dimensions that guarantees the last compound magnetic group of same polarity magnet that obtains; The preparation method of the set-up mode of the arrangement mode of magnetic patch, reinforcement layer and magnetic group and tramp iron separator is all identical with embodiment 1.
Claims (10)
1, the compound magnetic group of a kind of same polarity magnet is characterized in that, the compound magnetic group of this same polarity magnet comprises:
At least one deck iron plate;
At least one deck ferrite layer, described ferrite layer is fixed on the described iron plate, and every layer of described ferrite layer formed by at least one ferrite magnetic patch;
At least one deck neodymium iron layer, described neodymium iron layer is fixed on the described ferrite layer, and every layer of described neodymium iron layer rearranges by at least one ndfeb magnet and at least one ferrite magnetic block gap;
Wherein, the same magnetic pole of all described ndfeb magnets and ferrite magnetic patch is towards same direction.
2, the compound magnetic group of same polarity magnet as claimed in claim 1, it is characterized in that, the compound magnetic group of this same polarity magnet comprises two-layer at least ferrite layer, at least being set to the staggered floor bonding between the ferrite magnetic patch in the ferrite magnetic patch of the described ferrite layer core of one deck and the adjacent ferrite layer becomes the reinforcement layer, and the edge of each layer ferrite layer keeps alignment.
3, the compound magnetic group of same polarity magnet as claimed in claim 2 is characterized in that, the compound magnetic group of this same polarity magnet comprises 1 to 3 layer of reinforcement layer.
4, the compound magnetic group of same polarity magnet as claimed in claim 3 is characterized in that, is benchmark with described iron plate, and the 2nd layer and/or the 3rd layer of described ferrite layer are the reinforcement layer.
5, the compound magnetic group of same polarity magnet as claimed in claim 3, it is characterized in that, the compound magnetic group of this same polarity magnet comprises at least five layers of described ferrite layer, wherein, described reinforcement layer is being the 2nd layer of ferrite layer of benchmark with described iron plate and is being between the 4th layer of ferrite layer of benchmark with described neodymium iron layer.
As the compound magnetic group of each described same polarity magnet of claim 1-5, it is characterized in that 6, the compound magnetic group of this same polarity magnet comprises two layers of described neodymium iron layer.
7, the compound magnetic group of same polarity magnet as claimed in claim 1, it is characterized in that, described ndfeb magnet and ferrite magnetic patch are cube or rectangular shape, cube or rectangular shape that the compound magnetic group of this same polarity magnet is made up of described ndfeb magnet and ferrite magnetic patch.
8, the compound magnetic group of same polarity magnet as claimed in claim 7 is characterized in that, the compound magnetic group of this same polarity magnet is of a size of: length 400-1500mm; Width 400-1500mm; Height 100-500mm.
9, as claim 4 or the compound magnetic group of 7 described same polarity magnets, it is characterized in that, with described neodymium iron layer every layer thickness that is the described ferrite layer of three first layers of benchmark be 17mm to 20mm, and the thickness of described ferrite layer is identical or different.
10, a kind of suspension type tramp iron separator, this suspension type tramp iron separator have a housing and the magnetic group of being located in the housing, it is characterized in that described magnetic group is the compound magnetic group of each described same polarity magnet of claim 1-9; Described housing bottom is a corrosion resistant plate, and combines with the neodymium iron layer of the compound magnetic group of same polarity magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201084305U CN201251977Y (en) | 2008-06-05 | 2008-06-05 | Combined magnetic group with like polarity magnets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201084305U CN201251977Y (en) | 2008-06-05 | 2008-06-05 | Combined magnetic group with like polarity magnets |
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| Publication Number | Publication Date |
|---|---|
| CN201251977Y true CN201251977Y (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201084305U Expired - Fee Related CN201251977Y (en) | 2008-06-05 | 2008-06-05 | Combined magnetic group with like polarity magnets |
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| CN (1) | CN201251977Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376413A (en) * | 2010-08-07 | 2012-03-14 | 李新成 | Method for arranging magnet arrays with indefinite N poles and S poles |
| CN102623780A (en) * | 2012-04-28 | 2012-08-01 | 成都泰格微波技术股份有限公司 | Magnetic shield assembly of circulator |
-
2008
- 2008-06-05 CN CNU2008201084305U patent/CN201251977Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376413A (en) * | 2010-08-07 | 2012-03-14 | 李新成 | Method for arranging magnet arrays with indefinite N poles and S poles |
| CN102623780A (en) * | 2012-04-28 | 2012-08-01 | 成都泰格微波技术股份有限公司 | Magnetic shield assembly of circulator |
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Granted publication date: 20090603 Termination date: 20160605 |