Magnetic iron recovery device

Abstract

The utility model discloses a magnetic iron recovery device which comprises a magnetic separator shell and a magnetic roller supported and rotated in the magnetic separator shell, a flow guide partition plate forming an adsorption separation channel is arranged on the lower portion of the magnetic roller, a telescopic groove is formed in the flow guide partition plate, and an arc-shaped top plate capable of stretching out and drawing back up and down is placed in the telescopic groove. When the magnetic intensity is adjusted according to different grades of ore pulp, the position of the flow guide partition plate needs to be directly adjusted, and the distance between the adsorption separation channels can be adjusted only by adjusting the position of the arc-shaped top plate through the telescopic air bag, so that the adjustment is faster and more efficient; normal use of the magnetic separator is ensured without shutdown adjustment.

Description

Technical Field

[0001] The utility model relates to the field of iron ore magnetic separation, and particularly relates to a device for recovering magnetic iron. Background Art

[0002] The magnetic separator is mainly used to screen iron ore in the pulp. The pulp flows into the trough body through the feed box and then flows along the liquid inlet channel 5 to the bottom, and flows through the adsorption separation channel 6 between the magnetic drums 2 above the diversion partition plate 4. The rotating magnetic drum 2 will adsorb the fine iron ore in the pulp flowing through the adsorption separation channel 6, and the remaining tailings will be discharged from the tailings pipe 7. The fine iron ore adsorbed on the magnetic drum 2 rises along the concentrate channel 8 and is discharged from the outlet under the action of the scraping plate (as Figure 4 described);

[0003] With the continuous mining of the mine, the pulp entering the magnetic separator has a more serious ore depletion and the iron ore grade decreases. In order to ensure the magnetic separation effect, it is necessary to adjust the magnetic intensity of the magnetic separator according to the ore pulp of different grades. The existing magnetic intensity adjustment is to adjust the magnetic field distribution by changing the relative position of the magnetic source (fine iron ore in the pulp) and the magnetic pole (drum), that is, to adjust the spacing of the adsorption separation channel 6, so as to change the magnetic intensity. However, this adjustment is rather troublesome. It is very troublesome to readjust the position of the diversion partition plate 4, and it is necessary to stop the machine for adjustment when adjusting the position, which affects the normal use of the magnetic separator. Summary of the Utility Model

[0004] In order to solve the above existing problems, the utility model provides a device for recovering magnetic iron.

[0005] The utility model is realized through the following technical solutions:

[0006] A device for recovering magnetic iron includes a magnetic separator housing and a magnetic drum that rotates and is supported inside. A diversion partition plate for forming an adsorption separation channel is arranged below the magnetic drum. A telescopic groove is opened on the diversion partition plate, and an arc-shaped top plate capable of telescoping up and down is placed in the telescopic groove. A telescopic airbag is arranged below the arc-shaped top plate.

[0007] Further optionally, the telescopic airbag is arranged at the bottom of the telescopic groove and is adhesively fixed to the arc-shaped top plate at the upper part.

[0008] Further optionally, an air charging pipe is installed on the outer side of the telescopic airbag, and the inlet end of the air charging pipe extends to the outside of the magnetic separator housing and is hermetically connected thereto.

[0009] Further optionally, a 1-2 mm movable gap is left between the telescopic groove in the diversion partition plate and the side part of the arc-shaped top plate.

[0010] Further optionally, both ends of the diversion partition plate are fixedly connected to the inner side part of the magnetic separator housing.

[0011] Further optionally, sliding grooves are formed on both sides of the telescopic groove, and limiting blocks fixed to the lower side ends of the arc-shaped top plate are arranged in the sliding grooves.

[0012] Compared with the existing technology, the beneficial effects of the present utility model are as follows: when adjusting the magnetic intensity according to slurries of different grades, the position of the diversion partition plate needs to be directly adjusted. Only by adjusting the position of the arc-shaped top plate through the telescopic airbag to adjust the spacing of the adsorption and separation channels, such adjustment is more rapid and efficient, and there is no need to stop the machine for adjustment to ensure the normal use of the magnetic separator. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a sectional three-dimensional schematic diagram of the diversion partition plate of the present utility model;

[0015] Figure 3 is a schematic installation structure diagram of the telescopic groove and the arc-shaped top plate of the present utility model;

[0016] Figure 4 is a schematic diagram of the prior art of the present utility model;

[0017] In the figure: magnetic separator housing 1, magnetic drum 2, liquid inlet partition plate 3, diversion partition plate 4, liquid inlet channel 5, adsorption and separation channel 6, tailings pipe 7, concentrate channel 8, telescopic groove 9, arc-shaped top plate 10, telescopic airbag 11, air charging pipe 12, sliding groove 13, limiting block 14. Detailed Embodiment

[0018] The present utility model will be further described in detail below in conjunction with the drawings and the specific embodiments:

[0019] As Figure 1 , 2 shown, a magnetic iron recovery device includes a magnetic separator housing 1 and a magnetic drum 2 rotatably supported inside it. A diversion partition plate 4 forming an adsorption and separation channel 6 is arranged below the magnetic drum 2. A telescopic groove 9 is formed on the diversion partition plate 4, and an arc-shaped top plate 10 capable of telescoping up and down is placed in the telescopic groove 9. A telescopic airbag 11 is arranged below the arc-shaped top plate 10.

[0020] As Figure 2 shown, the telescopic airbag 11 is arranged at the bottom of the telescopic groove 9 and is adhesively fixed to the arc-shaped top plate 10 at the upper part.

[0021] As Figure 2 shown, an air charging pipe 12 is installed outside the telescopic airbag 11. The inlet end of the air charging pipe 12 extends to the outside of the magnetic separator housing 1 and is hermetically connected to it. The air charging pipe 12 can also be used for deflation.

[0022] There is a 1-2 mm movable gap between the telescopic groove 9 in the diversion partition plate 4 and the side of the arc-shaped top plate 10 to prevent the arc-shaped top plate 10 from jamming and ensure its flexibility in telescoping.

[0023] Both ends of the diversion partition plate 4 are fixedly connected to the inner side of the magnetic separator housing 1.

[0024] As Figure 3 shown, sliding grooves 13 are opened on both sides of the telescopic groove 9, and limit blocks 14 fixed to the lower side ends of the arc-shaped top plate 10 are arranged in the sliding grooves 13. The cooperation between the limit blocks 14 and the sliding grooves 13 prevents the arc-shaped top plate 10 from falling off when telescoping.

[0025] The implementation principle of a magnetic iron recovery device in an embodiment of this application is as follows:

[0026] When adjusting the spacing of the adsorption and separation channels 6 according to the grade of magnetite in the pulp, when the grade of magnetite in the pulp is low, it is necessary to reduce the spacing of the adsorption and separation channels 6 to change the relative position between the magnetic source (magnetite in the pulp) and the magnetic pole (drum), improve the magnetic strength of the magnetite, and ensure the magnetic separation effect;

[0027] During adjustment, open the control valve of the external gas supply pipe to inflate the air charging pipe 12, so that the telescopic airbag 11 gradually expands. The expanded telescopic airbag 11 pushes out the upper arc-shaped top plate 10, reducing the spacing of the adsorption and separation channels 6 above the diversion partition plate 4. In this way, the magnetic strength of the magnetite flowing through the adsorption and separation channels 6 will be relatively increased, ensuring the adsorption effect on low-grade magnetite. When the grade of magnetite is high, the arc-shaped top plate 10 can be operated in reverse to retract and increase the spacing of the adsorption and separation channels 6. When adjusting the magnetic strength according to the pulp of different grades in this way, it is necessary to directly adjust the position of the diversion partition plate 4. Only by adjusting the position of the arc-shaped top plate 10 through the telescopic airbag can the spacing of the adsorption and separation channels 6 be adjusted. Such adjustment is faster and more efficient, and there is no need to stop the machine for adjustment to ensure the normal use of the magnetic separator.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic iron recovery device, comprising a magnetic separator housing (1) and a magnetic drum (2) rotatably supported inside thereof, wherein a diversion partition plate (4) forming an adsorption and separation channel (6) is arranged below the magnetic drum (2), and it is characterized in that: The diversion partition plate (4) is provided with a telescopic groove (9), and an arc-shaped top plate (10) capable of telescoping up and down is placed in the telescopic groove (9). A telescopic airbag (11) is arranged below the arc-shaped top plate (10).

2. The magnetic iron recovery device according to claim 1, wherein: The telescopic airbag (11) is arranged at the bottom of the telescopic groove (9) and is adhesively fixed to the arc-shaped top plate (10) at the upper part.

3. A magnetic iron recovery device according to claim 2, characterized in that: An air charging pipe (12) is installed on the outer side of the telescopic airbag (11). The inlet end of the air charging pipe (12) extends to the outside of the magnetic separator housing (1) and is hermetically connected thereto.

4. A magnetic iron recovery device according to claim 1, characterized in that: A 1-2 mm movable gap is left between the telescopic groove (9) in the diversion partition plate (4) and the side of the arc-shaped top plate (10).

5. A magnetic iron recovery device according to claim 4, characterized in that: Both ends of the diversion partition plate (4) are fixedly connected to the inner side of the magnetic separator housing (1).

6. The magnetic iron recovery device according to claim 4, characterized in that: Chute grooves (13) are opened on both sides of the telescopic groove (9), and limit blocks (14) fixed to the lower side ends of the arc-shaped top plate (10) are arranged in the chute grooves (13).

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