CN101620260B - Permanent-magnetic hierarchical testing device for content of magnetic substance powder - Google Patents
Permanent-magnetic hierarchical testing device for content of magnetic substance powder Download PDFInfo
- Publication number
- CN101620260B CN101620260B CN2009100656058A CN200910065605A CN101620260B CN 101620260 B CN101620260 B CN 101620260B CN 2009100656058 A CN2009100656058 A CN 2009100656058A CN 200910065605 A CN200910065605 A CN 200910065605A CN 101620260 B CN101620260 B CN 101620260B
- Authority
- CN
- China
- Prior art keywords
- magnetic
- echelon
- source
- magnetic source
- magnet steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a permanent-magnetic hierarchical testing device for the content of magnetic substance powder. The invention is characterized by comprising the following steps: a. respectively adopting a ferrite magnetic material, a common Nd-Fe-B magnetic material and a high-performance Nd-Fe-B material to manufacture magnetic steel in the same specification size, and adopting a structure mode of clamping a high-permeability yoke sheet between every two adjacent magnetic steel to construct at least two hierarchical magnetic sources in an extrusion mode; b. utilizing a circular medium net or a steel-wool magnetism-collected medium made of high-permeability stainless steel to fill a magnetism-collected medium filling area, i.e., a separation space, wherein the magnetism-collected medium filling the magnetism-collected medium filling area can be arranged from sparsely to densely, and the magnetism-collected medium filling area and the corresponding hierarchical magnetic sourcesform a hierarchical closed magnetic system; and c. adopting a pressure device to drive each hierarchical magnetic source to make reciprocating motion in a cylinder and repeatedly enter or exit the separation space so as to realize the separation, the collection and the measurement of magnetic substances.
Description
Technical field
The present invention relates to a kind of many industries such as mineral processing such as ore dressing, coal separation and grain, Tea Production that are widely used in and carry out the magnetic material content determinator, relate to a kind of permanent-magnetic hierarchical testing device for content of magnetic substance powder specifically.
Background technology
Rapid development of national economy makes all trades and professions more and more to the demand of mineral wealth, and the deep processing and utilization of mineral wealth seems more and more important; And be the prerequisite and the basis of processing and utilization to the research of various physical properties; Wherein magnetic material content is an important content of rerum natura research.The content of magnetic thing is the index that many industries such as mineral processing such as ore dressing, coal separation and grain, Tea Production are extremely paid close attention in the powder, measures the content of magnetic thing in the mineral, is the basis of carrying out sorting mineral.
Through quantitative test to magnetic material content in the mineral, can understand the washability situation of mineral, for formulating rational sorting process process foundation is provided; Also can be used as an important technology index of magnetic plant manufacturing enterprise simultaneously.The assay of magnetic thing has important use at many industry fields such as mineral processing such as ore dressing, various rare, nonferrous metals ore, nonmetalliferous ore purification and metallurgy, abrasive material, grain, tealeaves.
The chemical constitution of magnetic thing in various powders, compose that to deposit the mode difference very big, cause very disunity of measurement standard that different industries carries out, measuring method varies, and the magnetic thing sensing equipment that is correspondingly adopted is each tool eternal lasting especially.Typical magnetic material content assay method and related device are following:
In dense-medium separation is produced; The mensuration of magnetic material content is a regular project; Not only to measure, also will measure the magnetic material content in magnetic material content, magnetic separator mine tailing and the various sorted product in the suspending liquid to the magnetic material content of dense medium itself.Current coal separation industry generally adopts the magnetite powder of certain fineness to dispose branch and selects suspension for use, and the content of magnetic thing has directly determined the sorting property and the production cost of suspension in the magnetite powder.The bioassay standard that the coal separation industry is carried out is the check criteria MT/T808-1999 of coal preparation plant, and in fact the content of measuring the magnetic thing be exactly to measure Fe
3O
4Content, method of testing and device mainly contain simple and easy determination and magnetic separation pipe determination method.
(1) simple and easy determination: use two blocks of glass and a block permanent magnet, take by weighing a certain amount of magnetite powder (or treating test sample below the 1mm) evenly be taped against one on glass, another piece is then placed on it, at a distance of 5-10mm; Then magnet is moved around on upper glass plate, it is on glass to make the magnetic thing be adsorbed onto the upper strata, magnet and upper strata glass is moved on on the preprepared porcelain dish together again, takes away magnet the magnetic thing is come off in porcelain dish.For several times,, claim its quality so repeatedly, calculate magnetic material content up to the whole sucking-offs of magnetic thing.Simplified method mensuration global error as a result is big and irregular.The flushing difficulty had influenced precision of test result when magnetic separation pipe method was measured less than the magnetic material content of 1mm sample.
(2) the main measuring measuring appratus of magnetic separation pipe method employing is the magnetic separation pipe.The magnetic separation pipe is a current application magnetic material content determining instrument the most widely, partly is made up of mounting seat, C shape iron core, field winding, gear train, glass tube and support thereof etc.; Mineral particle with different magnetic, the magnetic field through the magnetic separation pipe forms must receive the effect of magnetic force and mechanical force (gravity and fluid effect); Owing to the magnetic force that magnetic is suffered than ore particle strong and that magnetic is more weak is different, just produced different movement locus; The particle that magnetic is stronger is enriched in the middle of two magnetic poles; The weak particle of magnetic is then discharged under the effect of current; Because doing relatively reciprocating motion between magnetic separation pipe and magnetic pole; Make the material between magnetic pole produce " rinse action ", the non-magnetic particle that is mixed between magnetic-particle is developed, so material particles is elected two kinds of independent products as by its magnetic different the branch.
Inductive magnetic medium meter also is the employed a kind of important determining instrument of measuring magnetic material content in the suspension or measuring slime content indirectly of heavy-media coal preparation process.Its principle of work is: when certain suspending liquid that contains magnetisable material passes through the transmitter coil; The magnetic material content variation can cause winding inductance quantity to change; Thereby the measurement result of drawing; Because have only the magnetic thing in the suspension that coil inductance is worked, therefore can confirm the magnetic material content of suspension through measuring coil inductance.But the assay method of the suspension magnetic material content that adopts at present exists poor anti jamming capability, the stable inadequately problem of work, has influenced the accuracy of measurement result.
Metallurgy industry is measured the magnetic thing in the ore, and the standard of execution is GB6730.5-1986, and it mainly is to measure the content of iron-bearing mineral in the ore (specific susceptibility is greater than 3000 * 10
-6Cm
3/ g); Extensively adopt following 3 kinds of methods to carry out ferromagnetic mensuration now: magnetic method in (1) is manual: with the permanent magnet that has copper (or glass) cover, to select magnetic mineral then, wash out the superincumbent magnetic mineral of absorption with wash bottle drip washing magnet; Borrow and extract magnet out; Put into another beaker to magnetic mineral, repeatedly for several times, till the magnetic mineral in sample is all selected; (2) manual outer magnetic method: take by weighing the 0-100g sample in beaker; Add about 20ml water and make sample moistening fully, be close to beaker bottom with permanent magnet (at the bottom of beaker, recording magnetic field intensity is 900 ± 100 oersteds) and move, make magnetic mineral shift to a side; Incline then and non magnetic ore; Use sample ore in the broken off by water flush beaker again, repetitive operation is in the water that until inclining till the no mineral; (3) WFC-3 type magnetic separation appearance magnetic method: take by weighing the 0-100g sample in beaker, add about 20ml water and make sample moistening fully, because the effect of magnetic force; The track that the magnetic ore particle departs from its vertical drop is attracted on the magnetic pole tube wall nearby; And non-magnetic particle leans on the effect of Chui Li and current drip washing to fall, because the positive and negative opposed alignment of polarity of permanent magnet on the framework, and can do vertically to to-and-fro movement; Thereby make the magnetic direction checker of magnetic ore particle position; The magnetic ore particle becomes 180 ° of upsets thereupon, has reduced the magnetic ore particle to the carrying secretly of non magnetic ore particle, and the magnetic ore particle separated with non magnetic ore particle fully.Though manual magnetic method operation is simple but accuracy is not high, poor repeatability.Nd-Fe-B permanent magnet is high as the magnet measuring accuracy, favorable reproducibility and WFC-3 type magnetic separation appearance magnetic method adopts.
The mensuration of magnetic metal thing is an important indicator of the strong inspection of wheat quality in the wheat powder.When the wheat content of powder magnetic substance is measured; The metal object analyzer method that is magnetic commonly used, attraction method and " two magnetic method " etc.; Wherein magnetic metal thing analyzer method receives in the wheat flour influence of adjuvant bigger, and attraction method poor repeatability, two test error are bigger; Commonly used now is two magnetic methods.Two magnetic methods are combinations of magnetic metal thing analyzer and attraction, the combination of the electromagnet that so-called two magnetic are magnetic metal thing analyzer and the permanent magnet of attraction, and the result is accurate for method of operating science, mensuration relatively.But will use phenixin and large usage quantity in two magnetic methods, and phenixin has toxicity, experimenter and environment are had direct harm.
Though magnetic thing determination techniques is ripe at present; But wherein one type exists that manually-operated is wasted time and energy, the determination data error is big, and reappearance is relatively poor, though another kind ofly avoided the problems referred to above and adopt electromagnetism magnetic system more; Occupation area of equipment and operating cost are all higher; Complex structure, the measurement operation process is loaded down with trivial details, and is that have even harmful to experimenter and environment; Divide the constituency ambient field strong many below 1T simultaneously, be difficult to satisfy the needs that weak magnetic powder is measured; And magnetic field intensity can not satisfy the needs of measuring multiple different magnetic thing magnetic simultaneously, and adaptability is not strong.
Summary of the invention
The object of the invention provides a kind of permanent-magnetic hierarchical testing device for content of magnetic substance powder to existing weak point in the above-mentioned prior art just.
The object of the invention can be realized through following technical measures:
Permanent-magnetic hierarchical testing device for content of magnetic substance powder of the present invention comprises:
A, adopt ferrite magnetic material, common neodymium iron boron NdFeB magnetic material and high-performance Ne-Fe-B NdFeB material to process the magnet steel of same size size respectively; Be employed in that folder constructs at least two echelon magnetic sources with the frame mode of high conductive magnetic yoke sheet through fashion of extrusion between the per two adjacent magnet steel;
B, the annular medium net or the steel wool magnetic matrix that utilize high magnetic stainless steel to process; Annular medium net or steel wool magnetic matrix are filled in the magnetic matrix fill area (being the sorting space); And the magnetic matrix that the magnetic matrix fill area is filled can be successively by rare to close setting, said magnetic matrix fill area echelon magnetic source pairing with it constitutes the closed magnetic of echelon system;
C, pressure apparatus of employing realize that the echelon magnetic source is reciprocating in a cylindrical tube, back and forth get into and leave the sorting space, thereby realize sucking-off, collection and the mensuration of magnetic thing.
More specifically say: permanent-magnetic hierarchical testing device for content of magnetic substance powder of the present invention comprises through the vertical rack-mounted cylindrical tube of conjunction, is installed in echelon magnetic source one and echelon magnetic source two in the cylindrical tube with the coaxial cable mode at interval through connecting rod member; And the inner chamber of cylindrical tube is divided at the echelon magnetic source nonclient area two below the echelon magnetic source two, echelon magnetic source nonclient area one between echelon magnetic source one and echelon magnetic source two through the echelon magnetic source one that is provided with at interval and echelon magnetic source two; Be respectively arranged with magnetic matrix fill area one, magnetic matrix fill area two on the respective cylindrical cylinder section around echelon magnetic source one and echelon magnetic source two present positions, and be respectively arranged with the input and output material mouth of pipe at the upper and lower end of every section magnetic matrix fill area; Be used to drive the echelon magnetic source is arranged on cylindrical tube as the pressure apparatus of upper and lower displacement campaign along the cylindrical tube intracoelomic cavity upper end.
The rod member that is connected that is used for connection echelon magnetic source one and echelon magnetic source two described in the present invention is formed through the interconnective mandrel of stud bolt by three; Wherein upper and lower two mandrels are installed on respectively in the mandrel hole of echelon magnetic source one and echelon magnetic source two; And fix through the clamp nut that is positioned at the stud bolt two ends, the two ends up and down of the mandrel in the middle of being positioned at combine with two mandrels up and down through stud bolt respectively.
Pressure apparatus described in the present invention is the cylinder that is driven by pressure gas source, and the piston rod of this cylinder combines with the rod member upper end that is connected that is used for connection echelon magnetic source one and echelon magnetic source two through stud bolt.
The magnetic source of echelon described in the present invention adopts homopolarity to repel to gather the permanent magnetism annulus that respectively by ferrite magnetic material, common NdFeB material, high performance Nd FeB material formed of magnetic technology with the radial magnetizing of polylith same specification, makes up with fashion of extrusion with the frame mode of high conductive magnetic yoke sheet through folder between per two adjacent magnet steel to form.
Principle of work of the present invention is following:
(1) at first make the echelon magnetic source be in nonclient area through control cylinder, magnetic matrix in the filling, whether the echelon magnetic source is moved back and forth normal; Check through tentative ore pulp whether whole device moves normally then.
(2) the echelon magnetic source is among the sorting space, feeds the material weigh in advance, be made into certain density ore pulp carry out the magnetic thing sorting, separate out; For the magnetic thing in the sample ore is thoroughly separated out, can make ore pulp repeatedly through the sorting work district.
(3) it is similar when saturated to treat that the enrichment on magnetic matrix of magnetic thing gets, and stops to the ore deposit, makes the echelon magnetic source be in nonclient area through cylinder; Feed pressure water and realize the discharging of magnetic thing, oven dry is weighed then, can calculate magnetic material content.
Beneficial effect of the present invention is following:
(1) operation is time saving and energy saving, the determination data error is little, and reappearance is better, has avoided the problems referred to above and adopts permanent magnetism echelon magnetic source and magnetic matrix to make up magnetic system more, makes all low reduction greatly of device fabrication operating cost; All harmless to experimenter and environment.
(2) provide the different branch constituency ambient field of field strength distribution strong simultaneously by echelon permanent magnetism magnetic source simultaneously; Magnetic field intensity can satisfy the needs of measuring multiple different magnetic thing magnetic simultaneously; Adaptability is strong, and magnetic matrix is filled in around the echelon magnetic source the fully sorting space of permanent magnet.
(3) magnetic source uses high-performance Ne-Fe-B permanent-magnet material to adopt repulsion extruding magnetic conduction technology; Sorting background field intensity is high, and magnetic matrix can improve magnetic field gradient greatly, thereby increases the suffered magnetic force of magnetic thing; Reach the purpose that improves measuring accuracy height, separating effect, satisfy the needs that weak magnetic powder is measured.
(4) simple, the reliable operation of this device one-piece construction, the mensuration test process is simple, working service is easy.
(5) enter material way is flexible, both can carry out feed from top to bottom; Also can carry out pan feeding from bottom to top.Particularly make the gravity of magnetic thing self change sorting power into during pan feeding from bottom to top by competitive power.
Description of drawings
Fig. 1 is a general structure synoptic diagram of the present invention.
Fig. 2 is an echelon magnetic source structural representation of the present invention.
Fig. 2-the 1st, the side view of Fig. 2.
Fig. 3 echelon permanent magnetism magnetic source cellular construction synoptic diagram.
Fig. 3-the 1st, the side view of Fig. 3.
Sequence number among the figure: 1, air valve, 2, cylinder, 3, connect rod member (stud bolt), 4, O-ring seal, 5, the input and output material mouth of pipe; 6, echelon magnetic source nonclient area one, 7, echelon magnetic source two, 8, chamber sleeve pipe, 9, frame, 10, echelon magnetic source nonclient area two; 11, echelon magnetic source one, 12, magnetic matrix fill area one, 13, magnetic matrix fill area two, 14, cylinder piston; 15, be used to install the echelon magnetic source mandrel hole that connects rod member, 16, the right cylinder connector, 17, cylindrical tube, 18, Ferrite Material; 19, common NdFeB material, 20, high conductive magnetic yoke sheet, 21, high performance Nd FeB material, 22, the permanent magnetism annulus.
Embodiment
To combine embodiment (accompanying drawing) to do further to detail below the present invention:
As shown in Figure 1, permanent-magnetic hierarchical testing device for content of magnetic substance powder of the present invention comprises:
A, adopt ferrite magnetic material, common neodymium iron boron NdFeB magnetic material and high-performance Ne-Fe-B NdFeB material to process the magnet steel of same size size respectively; Be employed in that folder constructs at least two echelon magnetic sources with the frame mode of high conductive magnetic yoke sheet through fashion of extrusion between the per two adjacent magnet steel;
B, the annular medium net or the steel wool magnetic matrix that utilize high magnetic stainless steel to process; Annular medium net or steel wool magnetic matrix are filled in the magnetic matrix fill area (being the sorting space); And the magnetic matrix that the magnetic matrix fill area is filled can be successively by rare to close setting, said magnetic matrix fill area echelon magnetic source pairing with it constitutes the closed magnetic of echelon system;
C, pressure apparatus of employing realize that the echelon magnetic source is reciprocating in a cylindrical tube, back and forth get into and leave the sorting space, thereby realize sucking-off, collection and the mensuration of magnetic thing.
More specifically say: permanent-magnetic hierarchical testing device for content of magnetic substance powder of the present invention comprises: vertically be installed in the cylindrical tube 17 on the frame 9 through conjunction, be installed in echelon magnetic source 1 and echelon magnetic source 27 in the cylindrical tube with the coaxial cable mode at interval through connecting rod member; And the inner chamber of cylindrical tube is divided at the echelon magnetic source nonclient area 2 10 below the echelon magnetic source two, echelon magnetic source nonclient area 1 between echelon magnetic source 1 and echelon magnetic source 27 through the echelon magnetic source 1 that is provided with at interval and echelon magnetic source 27; Be respectively arranged with magnetic matrix fill area 1, magnetic matrix fill area 2 12 on the respective cylindrical cylinder section around echelon magnetic source 1 and echelon magnetic source 27 present positions, and be respectively arranged with the input and output material mouth of pipe 5 at the upper and lower end of every section magnetic matrix fill area; Be used to drive the echelon magnetic source is arranged on cylindrical tube as the pressure apparatus of upper and lower displacement campaign along the cylindrical tube intracoelomic cavity upper end.
The rod member that is connected that is used for connection echelon magnetic source 1 and echelon magnetic source 27 described in the present invention is formed through the interconnective mandrel of stud bolt by three; Wherein upper and lower two mandrels are installed on respectively in the mandrel hole 15 of echelon magnetic source 1 and echelon magnetic source 27; And fix through the clamp nut that is positioned at the stud bolt two ends, the two ends up and down of the mandrel in the middle of being positioned at combine with two mandrels up and down through stud bolt respectively.
Pressure apparatus described in the present invention is the cylinder 2 that is driven by pressure gas source, and the piston rod of this cylinder combines with the rod member upper end that is connected that is used for connection echelon magnetic source 1 and echelon magnetic source 27 through stud bolt.
The magnetic source of echelon described in the present invention adopts homopolarity to repel to gather the permanent magnetism annulus 22 that respectively by ferrite magnetic material 18, common NdFeB material 19, high performance Nd FeB material 21 be made of magnetic technology with the radial magnetizing of polylith same specification, makes up with fashion of extrusion with the frame mode of high conductive magnetic yoke sheet 20 through folder between per two adjacent magnet steel and forms (referring to Fig. 2, Fig. 2-1, Fig. 3, Fig. 3-1).
More specifically say; The magnetic source of echelon described in the present invention adopts ferrite, common neodymium iron boron NdFeB magnetic material and high-performance Ne-Fe-B NdFeB material to process the magnet steel of same size respectively; Utilize repulsion to gather magnetic technology more above-mentioned magnet steel therebetween is pressed together with the high conductive magnetic yoke sheet with the magnet steel same specification, the echelon magnetic source ratio in the longitudinal direction of three kinds of different materials formations can require to confirm according to rerum natura.Because the magnet on any conductive magnetic yoke sheet both sides all is same polarity; The repulsion state gathers the magnetic flux that magnetic technology makes conductive magnetic yoke sheet both sides strong permanent magnetic body send and all is compelled around the yoke sheet, " to extrude ", thus the power that has formed the magnetic source surface work magnetic induction density and the magnetic field gradient of difference successively.The material of conductive magnetic yoke sheet is electrical pure iron, mild carbon steel or iron cobalt vanadium FeCoV alloy.
Utilizing cylinder to drive two (or a plurality of) echelon magnetic sources in the present invention moves reciprocatingly; Be used to control the echelon magnetic source and back and forth get into or leave the sorting space; And then the sorting of realization material echelon, discharge, collection and mensuration; When its to-and-fro movement stroke should be able to guarantee regardless of the magnetic matrix discharging, two (or a plurality of) permanent magnetism echelon magnetic sources all left the sorting space, so that the magnetic thing is got rid of, collected and measures.
Servicing unit of the present invention mainly comprises carrying has flexible pipe and the valve body of control corresponding flow and the air pressure valve of control cylinder motion etc. of pressing ore pulp.Valve body through Control Flow can be realized even feeding, and what of may command feeding coal; Can control the motion of a plurality of echelon magnetic sources through air pressure valve.
If will realize that the industrialization actual production can be with many parallel specifications that use or directly increase echelon magnetic source and corresponding magnetic matrix.
Claims (1)
1. permanent-magnetic hierarchical testing device for content of magnetic substance powder, it is characterized in that: said device comprises:
A, through the vertical rack-mounted cylindrical tube of conjunction, be installed in echelon magnetic source one (11) and echelon magnetic source two (7) in the cylindrical tube with the coaxial cable mode at interval through connecting rod member; And the inner chamber of cylindrical tube is divided into the echelon magnetic source nonclient area two (10) that is positioned at echelon magnetic source two belows, is positioned at the echelon magnetic source nonclient area one (6) between echelon magnetic source one (11) and the echelon magnetic source two (7) through the echelon magnetic source one (11) that is provided with at interval and echelon magnetic source two (7); Be respectively arranged with magnetic matrix fill area one (13), magnetic matrix fill area two (12) on the respective cylindrical cylinder section around echelon magnetic source one (11) and echelon magnetic source two (7) present positions, and be respectively arranged with the input and output material mouth of pipe (5) at the upper and lower end of every section magnetic matrix fill area; Said magnetic matrix fill area one (13) constitutes the closed magnetic of echelon system with corresponding echelon magnetic source one (11), and said magnetic matrix fill area two (12) constitutes the closed magnetic of echelon system with corresponding echelon magnetic source two (7);
B, be provided with in the upper end of said cylindrical tube and be used to realize that the echelon magnetic source is reciprocating in said cylindrical tube, back and forth get into and leave the sorting space, thereby realize the pressure apparatus of sucking-off, collection and the mensuration of magnetic thing; Said pressure apparatus is the cylinder (2) that is driven by pressure gas source, and the piston rod of this cylinder combines with the rod member upper end that is connected that is used for connection echelon magnetic source one (11) and echelon magnetic source two (7) through stud bolt;
C, said echelon magnetic source are to constitute by at least two, be respectively by adopt ferrite magnetic material, common neodymium iron boron NdFeB magnetic material and high-performance Ne-Fe-B NdFeB material process the magnet steel of same size size and between per two adjacent magnet steel folder make up with the frame mode of high conductive magnetic yoke sheet, through fashion of extrusion and form;
D, to utilize annular medium net that high magnetic stainless steel processes or steel wool magnetic matrix to be filled in the magnetic matrix fill area be in the sorting space, and the magnetic matrix fill area magnetic matrix of being filled successively by rare to close setting;
E, the described rod member that is connected that is used for connection echelon magnetic source one (11) and echelon magnetic source two (7) are formed through the interconnective mandrel of stud bolt by three; Wherein upper and lower two mandrels are installed on respectively in the mandrel hole of echelon magnetic source one (11) and echelon magnetic source two (7); And fix through the clamp nut that is positioned at the stud bolt two ends, the two ends up and down of the mandrel in the middle of being positioned at combine with two mandrels up and down through stud bolt respectively;
F, said echelon magnetic source adopt homopolarity to repel to gather magnetic technology that the permanent magnetism annulus (22) of the radial magnetizing of polylith same specification is formed with the fashion of extrusion structure through the frame mode of folder between per two adjacent magnet steel with high conductive magnetic yoke sheet (20); Described permanent magnetism annulus (22) is that the magnet steel of three kinds of same size sizes being made by three kinds of different materials respectively constitutes; That is: first kind of magnet steel adopts ferrite magnetic material (18) to be made; Second kind of magnet steel adopts common neodymium iron boron NdFeB material (19) to be made, and the third magnet steel adopts high-performance Ne-Fe-B NdFeB material (21) to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100656058A CN101620260B (en) | 2009-07-31 | 2009-07-31 | Permanent-magnetic hierarchical testing device for content of magnetic substance powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100656058A CN101620260B (en) | 2009-07-31 | 2009-07-31 | Permanent-magnetic hierarchical testing device for content of magnetic substance powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101620260A CN101620260A (en) | 2010-01-06 |
| CN101620260B true CN101620260B (en) | 2012-07-04 |
Family
ID=41513594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100656058A Expired - Fee Related CN101620260B (en) | 2009-07-31 | 2009-07-31 | Permanent-magnetic hierarchical testing device for content of magnetic substance powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101620260B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB545583A (en) * | 1940-01-12 | 1942-06-03 | British Thomson Houston Co Ltd | Improvements in permanent magnet structures |
| US5766450A (en) * | 1996-09-25 | 1998-06-16 | Bethlehem Steel Corporation | Apparatus for magnetically filtering wastewaters containing oil-coated mill scale |
| CN101281239A (en) * | 2008-05-22 | 2008-10-08 | 中国科学院电工研究所 | Permanent magnetic body used for magnetic resonance imaging and manufacturing method thereof |
-
2009
- 2009-07-31 CN CN2009100656058A patent/CN101620260B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB545583A (en) * | 1940-01-12 | 1942-06-03 | British Thomson Houston Co Ltd | Improvements in permanent magnet structures |
| US5766450A (en) * | 1996-09-25 | 1998-06-16 | Bethlehem Steel Corporation | Apparatus for magnetically filtering wastewaters containing oil-coated mill scale |
| CN101281239A (en) * | 2008-05-22 | 2008-10-08 | 中国科学院电工研究所 | Permanent magnetic body used for magnetic resonance imaging and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101620260A (en) | 2010-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201076830Y (en) | Reciprocating double-box rare earth permanent-magnet high-gradient magnetic separator | |
| CN107921441A (en) | For paramagnetism and the filter of diamagnetic substance | |
| JPWO2011059076A1 (en) | Magnetic reagent, magnetic reagent kit, magnetic carrier processing method and processing apparatus thereof | |
| CN101554614A (en) | Anti-podal permanent magnetic high-intensity magnetic separator | |
| CN203209171U (en) | Miniature portable strong magnetic separator for experiments | |
| CN101703964B (en) | Superconducting magnetic separator | |
| Baik et al. | Magnetic field analysis of high gradient magnetic separator via finite element analysis | |
| CN102512868A (en) | Electromagnetic filter | |
| CN205949256U (en) | Many magnet structure's electromagnetic acoustic transducer | |
| CN201464315U (en) | Permanent magnet tester for testing magnetic matter with wet process | |
| CN101782539B (en) | Microfluidic biomone detection chip based on nuclear magnetic resonance | |
| Zheng et al. | Significantly improved separation efficiency of refractory weakly magnetic minerals by pulsating high-gradient magnetic separation coupling with magnetic fluid | |
| CN101620260B (en) | Permanent-magnetic hierarchical testing device for content of magnetic substance powder | |
| CN201673757U (en) | Magnetizing device with magnetic-flux measurement | |
| WO2013113990A1 (en) | Separation of luminescent nanomaterials | |
| CN103736587B (en) | Non-homogeneous strong magnetizing mediums, magnetic plant and magnetic selection method | |
| CN201394500Y (en) | Anti-pole type permanent and strong magnetic separator | |
| CN104923395A (en) | Electromagnetic and electric integrated device for separating and transferring magnetic particles | |
| CN103331207A (en) | Measuring method and measuring device for magnetic metal substances of wheat flour | |
| CN101556216B (en) | Device applicable to dry-type determination method for measuring content of powder magnetic substance | |
| CN103071590A (en) | Magnetic separation device and method | |
| Zhang et al. | Effect of coaxial electromagnetic field on separation density of dense-medium cyclone | |
| CN103509848A (en) | Method and arrangement for partial labeling and subsequent quantification of cells of cell suspension | |
| CN2771858Y (en) | Oil sample storage device for oil-hydraulic abrasive particle electomagnetic measurement | |
| CN210347273U (en) | Online automatic magnetic nano-material oscillation-desorption device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |