CN101767059B

CN101767059B - DC magnetic separator

Info

Publication number: CN101767059B
Application number: CN200910310940XA
Authority: CN
Inventors: 李日星
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-04
Filing date: 2009-12-04
Publication date: 2012-01-25
Anticipated expiration: 2029-12-04
Also published as: CN101767059A

Abstract

The invention relates to a DC magnetic separator. The magnetic separator comprises a material distributing assembly and a magnetic separating assembly directly continuing materials discharged by the material distributing assembly. The magnetic separating assembly comprises a roller arranged on a chassis and a fixed magnet arranged in the continuing material position of the roller. The magnetic separator can directly continue the materials and carry out direct selection on ore pulp. When the ore pulp is processed by the unobstructed material magnetic separation method, not only the magnetic separating speed is very high, but also the phenomenon of cracking of the flux linkage cannot occur to the selected materials.

Description

DC magnetic separator

Technical field

The present invention relates to a kind of DC magnetic separator.

Background technology

Existing magnetic separator is according to the difference of its base, can be divided into downflow type, reverse-flow and half reverse-flow these three types.Wherein, the downflow type magnetic separator has a cylinder and the magnetic system that is installed in below in the cylinder, and be installed in the cylinder below give the ore deposit case, ore pulp is by the magnetic system below of directly being given to cylinder for the ore deposit case, and makes the direction of rotation of flow direction and cylinder of ore pulp consistent.When magnetic separation; Non magnetic and weakly magnetic material is discharged by the gap between two base plates of pipe magnetic separator lower direction; And magnetic material is drawn onto on the surface of pipe magnetic separator, and rotates to the more weak place, magnetic field that magnetic is the edge with cylinder, by the discharging water pipe magnetic material is gathered in the concentrate hopper.Though it is relatively large that the downflow type magnetic separator is handled the ability of ore pulp; But because the magnetic material of selecting can rotate along with cylinder; And the magnetic field intensity of magnetic system can reduce to circumferencial direction along the bottom of cylinder gradually, so the suffered attraction of the magnetic material on the cylinder can reduce the magnetic linkage easy fracture that causes magnetic material to produce gradually along with its rotation; And the magnetic linkage breaking portion can be discharged from the non-magnetic material position, causes the waste of iron resource.

The structure of reverse-flow magnetic separator and downflow type magnetic separator is basic identical; Ore pulp is equally by the magnetic system below of directly being given to cylinder for the ore deposit case; Non-magnetic material is discharged by the mine tailing hole on the base plate; The direction of rotation of giving ore deposit direction and cylinder of different is this kind magnetic separator or the moving direction of magnetic product are opposite, make magnetic material with cylinder against being discharged in appointed part or the container to the ore deposit direction.Because this magnetic separator gives the direction of rotation of ore deposit direction and cylinder opposite; The magnetic separation time is prolonged relatively; The rate of recovery is higher; What be suitable for the strong magnetic mineral of particulate roughly selects and scans operation, but the phenomenon that magnetic linkage ruptures can occur because the magnetic material that this magnetic separator is selected is the same with the downflow type magnetic separator, so there is the problem of wasting iron resource equally in this magnetic separator; In addition, reverse-flow magnetic separator selects the import and export of case to be stopped up by ore easily, so this magnetic separator is not suitable for handling the coarse granule ore, causes its scope of application to have certain limitation.

Partly reverse-flow magnetic separator is basic identical to ore deposit direction and magnetic field suction force direction, and just ore pulp gets into from trench bottom and sorts the space, so there is the magnetic linkage fracture equally in the magnetic separator of this type and selects the case import and export by problems such as ore obstructions.

Above-mentioned downflow type, the reverse-flow and half reverse-flow three types common shortcoming of magnetic separator are to adopt to select case as sorting the space; Select case just need be provided with the import and export of ore pulp above that and adopt; And have the case that selects of import and export will limit the size of the flow and the particle thereof of ore pulp; So the ability that has the magnetic separator processing ore pulp that selects case is restricted.

The name of Chinese patent 2640602Y Granted publication is called " high-recovery Wet-type permanent magnet drum type magnetic automatic machine selects machine " and provides a solution.This magnetic separator is that to want to utilize magnetic be the zone that the structure (cornerite is between 200 degree to 300 degree) of big cornerite prolongs cylindrical shell magnetic separation material, can on a cylinder, realize sorting for twice simultaneously, thereby can improve the rate of recovery of material.But because this magnetic separator adopts too and selects case, even if cell body is full adverse current double-decker, the speed of material handling is also relatively slow, and does not also solve problem such as magnetic linkage fracture.

Summary of the invention

The purpose of this invention is to provide a kind of mode of direct election of utilizing and solve the DC magnetic separator that magnetic linkage ruptures and receives problems such as material particles diameter restriction.

DC magnetic separator proposed by the invention comprises the cloth assembly and the magnetic separation assembly of the cloth material that assembly is discharged that directly continues, and this magnetic separation assembly comprises rack-mounted cylinder and is installed in the cylinder fixed magnets in the material position that continues.

Said fixed magnets is through being installed in the inboard that bracing frame on the main shaft is fixed in cylinder, and the magnetic field intensity of fixed magnets is along level or approach horizontal direction and reduce gradually to the rollers roll direction.An edge of said fixed magnets is corresponding with the discharge end of cloth assembly, and another edge extends to the rotating direction of cylinder, and two edges are less than or equal to 180 with the formed interior angle of main shaft and spend.

The side-lower of said cylinder is provided with the discharging pipe fitting that sprays fluid to the cylinder direction.

The both sides of said cylinder below are respectively arranged with the non-magnetic material demarcation strip and the magnetic material demarcation strip of inclination.

Said cloth assembly comprises bottom feed box that is provided with delivery outlet and the level that is arranged on feed box delivery outlet below or approaches the defeated material parts of horizontal direction.

Magnetic separation assembly in the DC magnetic separator proposed by the invention adopts the mode of the material that directly continues that at first ore pulp is elected directly; And along with making progress earlier, rotating cylinder rotated downwards again by the material of magnetic; So; Adopt the mode of the accessible magnetic separation material of this kind to handle ore pulp, not only the speed of magnetic separation is quite fast, and the material that is selected can not produce the phenomenon of magnetic linkage fracture.

Description of drawings

Accompanying drawing 1 is the surface structure sketch map of an embodiment of DC magnetic separator proposed by the invention;

Accompanying drawing 2 is magnetic separation assembly cross-sectional view among Fig. 1.

The specific embodiment

Referring to Fig. 1 and Fig. 2, these two accompanying drawings provide the overall appearance structure of an embodiment of DC magnetic separator proposed by the invention.Can find out that from accompanying drawing this kind magnetic separator comprises frame 1, cloth assembly 2, magnetic separation assembly 3 and driven unit 4, wherein cloth assembly 2 and magnetic separation assembly 3, and driven unit 4 is installed on the frame 1.

Cloth assembly 2 has defeated material parts and the feed box (not providing among the figure) that is installed in defeated material parts top.Defeated material parts wherein comprise rectangle frame 21 and are installed in the defeated material slide carriage 22 of these rectangle frame 21 bottom surfaces, and make defeated material slide carriage 22 be level or approach horizontal direction; Feed box promptly is a upper surface open, and the lower bottom part setting is similar to the parts of funnel, after ore pulp gets in it from feed box, can directly flow on the defeated material slide carriage 22 from the pars infundibularis position.

Magnetic separation assembly 3 comprises the cylinder that is installed on the frame 1 31 and is installed in cylinder 31 fixed magnets 32 in the material position that continues; This fixed magnets 32 is installed in it on main shaft 33 through bracing frame 5; The end of main shaft 33 is rectangular portion 34, with the position of convenient adjustment fixed magnets 32.Bracing frame 5 comprises the axle sleeve 51 that is installed on the main shaft 33 and radially is arranged on the support plate 52 on the axle sleeve 51, the supporting plate that is used for fixing magnet 32 53 that is limited support plate 52.Fixed magnets 32 is the axial settings along cylinder 31; An one of which edge 35 is corresponding with the discharge end of cloth assembly 2, and another edge 36 extends to the rotating direction of cylinder 31, and edge 35 with 36 and main shaft 33 formed interior angles spend less than 90; Interior angle should be greater than 180 degree; Wherein, edge 35 is to be level or to approach horizontal direction with the line of main shaft 33, and the magnetic field intensity of fixed magnets 32 35 directions to edge 36 reduce gradually from the edge.In order to make fixed magnets 32 can keep stable, the balance weight body 61 that is supported by identical or akin bracing frame 6 with bracing frame 5 structures is installed at its diametric other end.

The both sides of cylinder 31 belows are respectively arranged with the non-magnetic material demarcation strip 7 and magnetic material demarcation strip 8 of inclination, are provided with discharging pipe fitting 9 at the side-lower of cylinder 31, and discharging pipe fitting 9 is provided with spray orifice or nozzle, so that spray fluid to cylinder 31 directions.In use; Driving cylinder 31 by driven unit 4 rotates; After ore pulp gets on the cloth assembly 2 from feed box; From defeated material slide carriage 2 levels or approach horizontal direction and flow on the cylinder 31, non-magnetic material freely flows out along non-magnetic material demarcation strip 7 directions, and during in addition position of the attraction that magnetic material turns to magnet 32 along with cylinder 31 after being drawn onto cylinder 31 surfaces and going up; Some magnetic material freely comes off, and also is bonded at the fluid that cylinder 31 lip-deep magnetic materials spray by discharging pipe fitting 9 it is flowed out along magnetic material demarcation strip 8.

Claims

1. DC magnetic separator; It is characterized in that: this magnetic separator comprises the cloth assembly and the magnetic separation assembly of the cloth material that assembly is discharged that directly continues; This magnetic separation assembly comprises rack-mounted cylinder and is installed in the cylinder fixed magnets in the material position that continues; Said fixed magnets is through being installed in the inboard that bracing frame on the main shaft is fixed in cylinder; And the magnetic field intensity of fixed magnets is along level or approach horizontal direction and reduce gradually to the rollers roll direction, and said cloth assembly comprises bottom feed box that is provided with delivery outlet and the level that is arranged on feed box delivery outlet below or approaches the defeated material parts of horizontal direction.

2. magnetic separator according to claim 1; It is characterized in that: an edge of said fixed magnets is corresponding with the discharge end of cloth assembly; Another edge extends to the rotating direction of cylinder, and two edges are less than or equal to 180 with the formed interior angle of main shaft and spend.

3, magnetic separator according to claim 1 is characterized in that: the side-lower of said cylinder is provided with the discharging pipe fitting that sprays fluid to the cylinder direction.

4, magnetic separator according to claim 1 is characterized in that: the both sides of said cylinder below are respectively arranged with the non-magnetic material demarcation strip and the magnetic material demarcation strip of inclination.