CN214766132U

CN214766132U - Magnetite fine powder grade lifting machine

Info

Publication number: CN214766132U
Application number: CN202120365569.3U
Authority: CN
Inventors: 李保玉
Original assignee: Qian'an Detai Industry And Trade Co ltd
Current assignee: Qian'an Detai Industry And Trade Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-11-19
Anticipated expiration: 2031-02-07

Abstract

The utility model relates to a magnetite fine powder grade lifting machine belongs to the field of powdered ore screening installation, including the barrel, the barrel top is fixed with a feeding section of thick bamboo, feeding bobbin end and the inside intercommunication of barrel, the feeding section of thick bamboo internal rotation is connected with the axis of rotation, and feeding section of thick bamboo top surface is fixed with the motor fixed with the axis of rotation, and the axis of rotation is fixed with the agitator from the position that the feeding bobbin end stretches out. This application has the degree of consistency that improves the ore pulp, improves the effect of obtaining the grade of iron concentrate powder.

Description

Magnetite fine powder grade lifting machine

Technical Field

The application relates to the field of mineral powder screening equipment, in particular to a magnetite fine powder grade elevator.

Background

In iron ore, the slurry needs to be magnetically separated for many times, and magnetic mineral powder is separated from the slurry. The slurry can be subjected to high-efficiency magnetic separation by the grade elevator, and the raw ore grade of the hematite subjected to magnetic separation can be improved.

Referring to fig. 1, there has been a magnetite fine powder grade lifting machine at present, including frame 1, be fixed with barrel 2 on frame 1, there is a feed cylinder 3 at barrel 2 top, is provided with the permanent magnet in the barrel 2 lateral wall, is provided with concentrate play feed cylinder 6 in barrel 2 bottom, is fixed with high-pressure inlet tube 7 on the barrel 2 lateral wall near barrel 2 bottom, is provided with waste material discharge pipe 5 on the lateral wall near the top at barrel 2. The ore pulp flows into the barrel body 2 from the feeding barrel 3, meanwhile, high-pressure clean water is introduced into the barrel body 2 through the high-pressure water inlet pipe 7, the clean water flows into the barrel body 2 and is mixed with the pulp, iron fine powder in the ore pulp is adsorbed by the permanent magnet on the side wall of the barrel body 2, the iron fine powder slides to the concentrate discharging barrel 6 along the side wall of the barrel body 2, and nonmagnetic mineral powder in the ore pulp overflows out of the barrel body 2 from the waste material discharging pipe 5 along with the clean water.

In view of the above-mentioned related technologies, the inventor believes that when the ore slurry is added into the barrel 2, the slurry is not uniform enough, and the fine iron powder may be wrapped by impurities, so that a part of the fine iron powder is separated, the magnetic separation effect on the fine iron powder may be reduced, and the grade of the obtained fine iron powder may be reduced.

SUMMERY OF THE UTILITY MODEL

In order to improve the degree of consistency of ore pulp, improve the grade that obtains the iron ore concentrate, this application provides a magnetite concentrate grade lifting machine.

The application provides a magnetite fine powder grade lifting machine adopts following technical scheme:

the utility model provides a magnetite fine powder grade lifting machine, includes the barrel, and the barrel top is fixed with a feeding section of thick bamboo, feeding bobbin base end and the inside intercommunication of barrel, the feeding section of thick bamboo internal rotation is connected with the axis of rotation, and feeding bobbin top surface is fixed with the motor fixed with the axis of rotation, and the axis of rotation is fixed with the agitator from the position that the feeding bobbin base end stretches out.

Through adopting above-mentioned technical scheme, the motor drives the axis of rotation and rotates, and the axis of rotation drives the agitator and rotates, adds the feeding section of thick bamboo back when the ore pulp, and the agitator stirs the ore pulp, makes the ore pulp more even, and the fine iron powder of being wrapped up by impurity is dispersed, and when the ore pulp was selected by the magnetic separation, the fine iron powder was chosen by the branch more easily, and then the improvement obtains the grade of fine iron powder.

Optionally, a cover is fixed to the bottom end of the feeding cylinder, the cover is sleeved outside the agitator, the radius of the cover is larger than that of the feeding cylinder, and the bottom end of the cover is communicated with the inside of the cylinder.

Through adopting above-mentioned technical scheme, the ore pulp directly falls into the dustcoat from the feed cylinder, and the dustcoat makes the ore pulp scatter, suitably reduces the impact force to the agitator, gathers together the ore pulp around the agitator simultaneously, improves the refining effect of agitator to the ore pulp.

Optionally, the agitator includes a fixed ring fixed to the rotating shaft, the fixed ring having a plurality of connecting rods fixed thereto, and a plurality of agitating blades fixed to each of the connecting rods at equal intervals.

Through adopting above-mentioned technical scheme, the axis of rotation drives the connecting rod and rotates, fixes stirring piece on the connecting rod around the axis of rotation motion, stirs the ore pulp to stir the ore pulp and scatter, improve the magnetic separation effect.

Optionally, the stirring sheet is obliquely fixed on the connecting rod.

Through adopting above-mentioned technical scheme, stirring piece slope sets up, makes the surface of stirring piece and the vertical ore pulp area of contact who falls increase, improves the stirring effect to the ore pulp.

Optionally, the stirring pieces on two adjacent connecting rods are not on the same circumference.

Through adopting above-mentioned technical scheme, when the agitator stirs the ore pulp, make the ore pulp of different positions all obtain the stirring of stirring piece, improve the refining effect of ore pulp.

Optionally, the stirring piece is provided with a through hole, the connecting rod is inserted into the through hole, the stirring piece is in threaded connection with a fastening bolt, and the fastening bolt is inserted into the connecting rod and penetrates through the stirring piece.

Through adopting above-mentioned technical scheme, stir the piece and can dismantle the connection on the connecting rod, be convenient for installation and dismantlement to stir the piece cover and establish on the connecting rod, and fastening bolt runs through on connecting rod and the stirring piece, make the stirring piece more firm.

Optionally, the fixing ring comprises two arc-shaped half rings, locking plates are fixed at two ends of each half ring, and the locking plates of the two half rings are detachably connected.

Through adopting above-mentioned technical scheme, solid fixed ring can be dismantled, is convenient for maintain the agitator.

Optionally, a dispersion cover with a cambered surface is fixed at the bottom end of the rotating shaft, and the radius of the bottom end of the dispersion cover is larger than that of the top end of the dispersion cover.

Through adopting above-mentioned technical scheme, if the ore pulp falls from the center, the ore pulp is at dispersion cover landing on the surface, and dispersion cover leads the ore pulp to the axis of rotation all around, makes the ore pulp be close to the barrel lateral wall, makes the ore pulp carry out the magnetic separation more fast.

Optionally, a cavity is arranged in the side wall of the cylinder, and a direct current winding coil for generating a downward magnetic field and an alternating current overturning coil for generating an overturning magnetic field are sequentially fixed in the cavity from top to bottom.

By adopting the technical scheme, after the ore pulp flows into the cylinder, the downward magnetic field generated by the direct current winding coil separates out the iron fine powder, the iron fine powder is separated out, the iron fine powder gradually slides along the inner wall of the cylinder, the iron fine powder passes through the overturning magnetic field generated by the alternating current overturning coil, and the overturning magnetic field continuously switches directions, so that impurity clusters wrapping the iron fine powder are rubbed, the iron fine powder is more finely separated, and the grade of the obtained iron fine powder is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after the ore pulp is added into the feeding cylinder, the agitator agitates the ore pulp to ensure that the ore pulp is more uniform, the iron concentrate powder wrapped by impurities is dispersed, and the iron concentrate powder is more easily separated when the ore pulp is magnetically separated, so that the grade of the obtained iron concentrate powder is improved;

2. the locking plate is obliquely arranged, so that the contact area between the surface of the locking plate and vertically falling ore pulp is increased, and the stirring effect of the ore pulp is improved;

3. the stirring piece is detachably connected to the connecting rod, so that the stirring piece is convenient to mount and dismount, the stirring piece is sleeved on the connecting rod, and the fastening bolt penetrates through the connecting rod and the stirring piece, so that the stirring piece is more stable.

Drawings

Fig. 1 is a schematic structural view of a related art of the present application;

FIG. 2 is a schematic cross-sectional view of the overall structure of the present application;

fig. 3 is a schematic view of the agitator of the present application.

Description of reference numerals: 1. a frame; 2. a barrel; 21. a housing; 22. an overflow trough; 23. an outlet; 24. a cavity; 25. mounting a shell; 3. a feeding cylinder; 31. a support frame; 4. a stirring device; 41. a rotating shaft; 42. a motor; 43. an agitator; 431. a fixing ring; 4311. a half ring; 4312. a locking plate; 4313. a bolt; 432. a connecting rod; 433. a stirring sheet; 434. a through hole; 435. fastening a bolt; 44. a dispersion cover; 5. a waste discharge pipe; 6. a concentrate discharging barrel; 7. a high-pressure water inlet pipe; 8. a housing; 9. a direct current winding coil; 10. alternating current inverts the coil.

Detailed Description

The present application is described in further detail below with reference to figures 2-3.

The embodiment of the application discloses a magnetite concentrate grade lifting machine. Referring to fig. 2 and 3, the grade hoister comprises a frame 1, wherein a cylinder 2 is fixed on the frame 1, the cylinder 2 is cylindrical, a support frame 31 is fixed at the top of the cylinder 2, a feeding cylinder 23 is fixed on the support frame 31, the bottom end of the feeding cylinder 23 is communicated with the inside of the cylinder 2, and a feeding pipeline 32 is fixed on the side wall of the feeding cylinder 23. A shell 21 is fixed on the side wall of the cylinder 2 near the top, an overflow groove 22 is formed between the shell 21 and the cylinder 2, an outlet 23 communicated with the overflow groove 22 is arranged on the side wall of the cylinder 2, and a waste discharge pipe 5 is fixed on the shell 21. The bottom end of the cylinder body 2 is connected with a concentrate discharging cylinder 6, and a high-pressure water inlet pipe 7 is fixed on the side wall of the cylinder body 2 close to the bottom.

An agitation device 4 is provided in the feed cylinder 23. The stirring device 4 comprises a rotating shaft 41, the rotating shaft 41 is rotatably connected to the feeding cylinder 23, and the rotating shaft 41 extends from the bottom end of the feeding cylinder 23. The top surface of the feeding cylinder 23 is fixed with a motor 42, and the output end of the motor 42 is fixed with the rotating shaft 41.

An agitator 43 is fixed to the lower end of the feed cylinder 23 at a position where the rotary shaft 41 protrudes from the lower end of the feed cylinder 23, and a cover 8 is fixed to the lower end of the feed cylinder 23, the cover 8 surrounding the agitator 43, and the radius of the cover 8 is larger than that of the feed cylinder 23, so that slurry flowing out of the feed cylinder 23 can be gradually dispersed, agitation can be facilitated, impact force on the agitator 43 can be reduced, and the agitating effect of the agitator 43 can be improved.

Referring to fig. 2 and 3, the agitator 43 includes a fixing ring 431 fixed to the rotation shaft 41, the fixing ring 431 is formed by fastening two circular arc-shaped half rings 4311 to each other, locking plates 4312 are fixed to both ends of the half rings 4311, and the two locking plates 4312 are fixed by bolts 4313, so that the fixing ring 431 is fastened to the rotation shaft 41.

Each half ring 4311 is fixed with a plurality of connecting rods 432, each connecting rod 432 is sleeved with a plurality of stirring sheets 433, and the stirring sheets 433 are arranged on the connecting rods 432 at equal intervals. A through hole 434 is formed in the stirring piece 433, the connecting rod 432 is inserted into the through hole 434, and a fastening bolt 435 is threadedly connected to the stirring piece 433, and the fastening bolt 435 penetrates through the connecting rod 432 and extends out from the other end of the stirring piece 433, so that the stirring piece 433 is fixed to the connecting rod 432. The stirring sheets 433 are obliquely arranged, and when the rotating shaft 41 drives the connecting rod 432 to rotate, the stirring sheets 433 contact with the slurry to break up the slurry and stir the slurry uniformly. The stirring pieces 433 on two adjacent connecting rods 432 are not on the same circumference, so that the staggered stirring pieces 433 further enhance the uniformity of stirring the slurry.

The agitation of the agitator 43 creates a centrifugal field within the housing 8, which causes the slurry to disperse around. The bottom end of the rotating shaft 41 is also fixed with a dispersing cover 44, the radius of the bottom end of the dispersing cover 44 is larger than that of the top end, the side wall of the dispersing cover 44 is a slope, and after ore pulp slides out of the bottom end of the outer cover 8, the ore pulp slides to the periphery along the dispersing cover 44, so that the ore pulp is closer to the inner wall of the cylinder 2.

A mounting shell 25 is fixed outside the side wall of the barrel 2, a cavity 24 is formed between the mounting shell 25 and the side wall of the barrel 2, a direct current winding coil 9 and an alternating current overturning coil 10 are sequentially arranged in the cavity 24 from top to bottom, the direct current winding coil 9 generates a downward magnetic field, and the alternating current overturning coil 10 generates an up-and-down overturning magnetic field.

The high-pressure water inlet pipe 7 leads high-pressure water into the cylinder 2, the high-pressure water is flushed into the cylinder 2 to form vortex water flow, and the water can flow out from the waste outlet 23. In the barrel 2 was added to the ore pulp from feed cylinder 23, agitating unit 4 stirred the ore pulp evenly, and the ore pulp was diluted by the clear water, and the iron concentrate powder in the ore pulp was separated to the magnetic field of following downwards, and the iron concentrate powder adsorbs on the barrel 2 inner wall, and the magnetic field of upset stirs the ore pulp that the parcel has the iron concentrate powder from top to bottom, makes the iron concentrate powder separated, further promotes the sorting precision to the concentrate powder.

The gravity borne by the fine iron powder is greater than the buoyancy, so the fine iron powder slides to the fine material outlet 23 along the inner wall of the barrel 2, the buoyancy borne by the impurities is greater than the gravity, the impurities float upwards along with the water flow, and the impurities and the water flow to the overflow groove 22 through the outlet 23 and then are discharged from the waste discharge pipe 5.

The implementation principle of the magnetite concentrate grade hoisting machine in the embodiment of the application is as follows: during sorting, high-pressure clean water is introduced into the barrel 2 through the high-pressure water inlet pipe 7, the high-pressure clean water is washed into vortex-shaped water flow, ore pulp is added into the feeding barrel 23, and the motor 42 drives the stirrer 43 to rotate.

The ore pulp flows into the outer cover 8 from the bottom end of the feeding cylinder 23, the connecting rod 432 rotates, and the stirring sheet 433 breaks up the ore pulp to make the ore pulp uniform. After being stirred, the slurry slides in a direction close to the side wall of the cylinder 2 under the action of centrifugal force, and the dispersion hood 44 further guides the slurry close to the side wall of the cylinder 2.

When the ore pulp flows, the downward magnetic field generated by the direct current winding coil 9 makes the iron concentrate attached to the side wall of the cylinder 2, and the overturning magnetic field generated by the alternating current overturning coil 10 repeatedly magnetically attracts the ore pulp, so that the iron concentrate coated in the impurities is separated.

The fine iron powder slides into the concentrate outlet 23 along the side wall of the barrel 2, and the impurities overflow into the overflow groove 22 along with the water flow and are then discharged from the waste discharge pipe 5.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a magnetite fine powder grade lifting machine, includes barrel (2), and barrel (2) top is fixed with feed cylinder (3), feed cylinder (3) bottom and barrel (2) inside intercommunication, its characterized in that: the utility model discloses a feeding device, including a feeding cylinder (3), a feeding cylinder (3) internal rotation is connected with axis of rotation (41), and feeding cylinder (3) top surface is fixed with motor (42) fixed with axis of rotation (41), and the position that axis of rotation (41) stretched out from feeding cylinder (3) bottom is fixed with agitator (43), agitator (43) are fixed with a plurality of connecting rod (432) including fixed ring (431) on axis of rotation (41) on fixed ring (431), and equidistant a plurality of stirring piece (433) of being fixed with on every connecting rod (432).

2. The magnetite concentrate grade elevator according to claim 1, characterized in that: the bottom end of the feeding cylinder (3) is fixedly provided with an outer cover (8), the outer cover (8) is sleeved outside the stirrer (43), the radius of the outer cover (8) is larger than that of the feeding cylinder (3), and the bottom end of the outer cover (8) is communicated with the interior of the cylinder body (2).

3. The magnetite concentrate grade elevator according to claim 1, characterized in that: the stirring sheet (433) is obliquely fixed on the connecting rod (432).

4. A magnetite concentrate grade elevator according to claim 1 or 3, characterized by: the stirring sheets (433) on two adjacent connecting rods (432) are not on the same circumference.

5. The magnetite concentrate grade elevator according to claim 1, characterized in that: the stirring piece (433) is provided with a through hole (434), the connecting rod (432) is inserted into the through hole (434), the stirring piece (433) is connected with a fastening bolt (435) through threads, and the fastening bolt (435) is inserted into the connecting rod (432) and penetrates through the stirring piece (433).

6. The magnetite concentrate grade elevator according to claim 1, characterized in that: the fixing ring (431) comprises two arc-shaped half rings (4311), locking plates (4312) are fixed at two ends of each half ring (4311), and the locking plates (4312) of the two half rings (4311) are detachably connected.

7. The magnetite concentrate grade elevator according to claim 1, characterized in that: the bottom end of the rotating shaft (41) is fixedly provided with a dispersion cover (44) with an arc surface, and the radius of the bottom end of the dispersion cover (44) is larger than that of the top end.

8. The magnetite concentrate grade elevator according to claim 1, characterized in that: a cavity (24) is formed in the side wall of the barrel (2), and a direct current winding coil (9) for generating a downward magnetic field and an alternating current overturning coil (10) for generating an overturning magnetic field are sequentially fixed in the cavity (24) from top to bottom.