CN216826465U

CN216826465U - Demagnetizing device with good demagnetizing effect

Info

Publication number: CN216826465U
Application number: CN202122542910.0U
Authority: CN
Inventors: 纪礽辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-06-28
Anticipated expiration: 2031-10-21

Abstract

The utility model discloses a demagnetizing device with good demagnetizing effect, which comprises a demagnetizing main pipe, an input pipe, an output pipe, a demagnetizing coil and a rotating shaft, wherein the input pipe and the output pipe are arranged at two ends of the demagnetizing main pipe; the demagnetizing coil is arranged on the outer wall of the demagnetizing main pipe, the rotating shaft penetrates through the demagnetizing main pipe along the length direction of the demagnetizing main pipe and can rotate in the demagnetizing main pipe, and a plurality of scattering components located in the demagnetizing field range of the demagnetizing coil are fixedly arranged on the rotating shaft. Compared with the prior art, the utility model discloses a setting is broken up the operation in taking off the magnetism magnetic field to the iron ore of magnetism reunion in the ore pulp, compares in breaking up again after taking off the magnetism, and dispersion effect is better, has prolonged the distance and the time of iron ore in the demagnetization magnetic field moreover, and demagnetization effect is better.

Description

Demagnetizing device with good demagnetizing effect

Technical Field

The utility model relates to a magnetic separation demagnetizing technical field, concretely relates to demagnetizing device that demagnetizing effect is good.

Background

In the magnetic separation process of the iron ore, the iron ore powder is magnetized after passing through a magnetic separator, and mutually attracted and gathered together to form magnetic agglomeration. This results in a large mass of the magnetically agglomerated particles, which is not conducive to adsorption by a magnetic separator, resulting in loss of iron. The particles after magnetic agglomeration wrap impurities in the particles, so that the grade of the iron ore after magnetic separation is influenced. Therefore, in the process of sorting ferromagnetic materials, demagnetization is an indispensable auxiliary link. The demagnetizing principle is that the demagnetizing is carried out according to the principle that under the action of different external magnetic fields, the magnetic induction intensity B of the ferromagnetic mineral and the magnetic induction intensity H of the external magnetic field form a magnetic hysteresis loop which has similar shape and unequal area until the shape is zero. When AC is introduced into the demagnetizer, a magnetic field whose direction changes constantly and size decreases gradually is generated in the direction of the central line of the coil. When the ore pulp passes through the coil, magnetic ore particles in the ore pulp are demagnetized repeatedly, and finally residual magnetism is lost.

Although the demagnetizer eliminates most of magnetism of the iron ore after demagnetization, the iron ore cannot be eliminated by 100%, so that part of the iron ore can be agglomerated.

If the scattering operation is carried out before or after demagnetization, because the agglomerated iron ore still has certain magnetism, the agglomerated iron ore is not easy to scatter, and the scattering effect is not good. The traditional wet pipeline ore pulp demagnetizer has the defect of poor demagnetizing effect caused by short retention time of ore pulp in a demagnetizing magnetic field.

In view of the above, the present inventors have made intensive studies to solve the above-mentioned drawbacks of the prior art and have developed the present invention.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a demagnetizing device that demagnetizes effect is good, it has the iron ore that makes after the demagnetization to disperse more, the better characteristics of demagnetizing effect.

In order to achieve the above purpose, the solution of the present invention is:

a demagnetizing device with good demagnetizing effect comprises a demagnetizing main pipe, an input pipe, an output pipe, a demagnetizing coil and a rotating shaft, wherein the input pipe and the output pipe are arranged at two ends of the demagnetizing main pipe; the demagnetizing coil is arranged on the outer wall of the demagnetizing main pipe, the rotating shaft penetrates through the demagnetizing main pipe along the length direction of the demagnetizing main pipe and can rotate in the demagnetizing main pipe, and a plurality of scattering components located in the demagnetizing field range of the demagnetizing coil are fixedly arranged on the rotating shaft.

Furthermore, end covers are respectively arranged on the input pipe and the output pipe, two ends of the rotating shaft are rotatably connected to the end covers, and driving power for driving the rotating shaft to rotate is arranged at the end part of the rotating shaft.

Further, the driving power is a motor.

Further, the material inlet of the input pipe and the material outlet of the output pipe are arranged upwards, and ore pulp can be filled in the inner cavity of the demagnetizing main pipe.

Further, the demagnetizing coil is a tower-shaped coil.

Further, the rotating shaft and the scattering component are made of non-magnetic materials.

Furthermore, the rotating shaft and the scattering part are made of metal materials, and the scattering part is connected to the rotating shaft in a welding mode.

Furthermore, the scattering component is a rod-shaped scattering rod, the scattering rod on the rotating shaft is perpendicular to the rotating shaft, and two scattering rods which are adjacently arranged along the axial direction are perpendicular to each other.

Furthermore, the rotating shafts in the input pipe and the output pipe are also provided with a breaking part.

Furthermore, the demagnetizing main pipe is respectively connected with the input pipe and the output pipe through flange plates.

After the structure of the oil field demagnetizer is adopted, the utility model relates to a demagnetize device that demagnetize effect is good, it has following beneficial effect at least:

the ore pulp is conveyed in a demagnetizing main pipe, the demagnetizing coil generates a variable demagnetizing magnetic field, and iron ore particles in the ore pulp are demagnetized under the action of the demagnetizing magnetic field. When demagnetizing, the rotating shaft drives the scattering component to rotate, and the scattering component scatters the magnetically agglomerated materials in the demagnetizing magnetic field. Because the operation of breaing up lasts when the ore pulp passes through the demagnetization magnetic field, can fully break up the particle of the magnetic agglomeration that magnetism is zero instantaneously in the process of breaing up, the particle of magnetic agglomeration is opened very easily this moment to improve the dispersion effect to magnetic agglomeration magnetic force greatly. And due to the disturbance action of the rotating shaft and the scattering component, the distance and the time of iron ore particles in the demagnetizing magnetic field are prolonged, so that the demagnetization of the iron ore in the demagnetizing magnetic field is more sufficient.

And secondly, inputting the ore pulp into the main pipe through the input pipe, and outputting the ore pulp through the output pipe. The end covers on the input pipe and the output pipe support the rotating shaft, the sealing effect of the pipeline is avoided, and ore pulp outflow is avoided. The material inlet of the input pipe and the material outlet of the output pipe are arranged upwards, and the input pipe, the material main pipe and the output pipe form a U-shaped structure. The ore pulp can naturally fill the inner cavity of the whole demagnetizing main pipe.

And thirdly, the rotating shaft and the scattering part are made of non-magnetic materials, so that the iron ore is prevented from being adsorbed on the rotating shaft and the scattering part.

Compared with the prior art, the utility model discloses a setting is broken up the operation in taking off the magnetism magnetic field to the iron ore of magnetism reunion in the ore pulp, compares in breaking up again after taking off the magnetism, and dispersion effect is better, has prolonged the distance and the time of iron ore in the demagnetization magnetic field moreover, and demagnetization effect is better.

Drawings

Fig. 1 is a schematic view of the demagnetizing device of the present invention with good demagnetizing effect.

Fig. 2 is a schematic sectional view of the present invention.

Fig. 3 is a schematic perspective view of the present invention.

Fig. 4 is a perspective view of the rotating shaft and the scattering member.

In the figure: a demagnetizing main pipe 1; an input pipe 2; an output pipe 3; an end cap 21; a flange 22; a material inlet 23; a material outlet 24; a demagnetization coil 3; a demagnetizing field 31; a rotating shaft 4; a breaking-up member 5; breaking up the rod 51.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.

As shown in fig. 1 to 4, the demagnetizing device with good demagnetizing effect according to the present invention comprises a main demagnetizing pipe 1, an input pipe 2, an output pipe 3, a demagnetizing coil 3, and a rotating shaft 4, wherein the input pipe 2 and the output pipe 3 are disposed at two ends of the main demagnetizing pipe 1; the demagnetizing coil 3 is arranged on the outer wall of the demagnetizing main pipe 1, the rotating shaft 4 penetrates through the demagnetizing main pipe 1 along the length direction of the demagnetizing main pipe 1 and can rotate in the demagnetizing main pipe 1, and the rotating shaft 4 is fixedly provided with a plurality of scattering components 5 positioned in the range of a demagnetizing field 31 of the demagnetizing coil 3.

Thus, the utility model relates to a take off magnetic device that effect is good takes off magnetism, the ore pulp is in taking off magnetism and is responsible for 1 interior transport, take off magnetism coil 3 and produce the demagnetization magnetic field 31 that changes, the iron ore granule in the ore pulp takes off magnetism under the effect of demagnetization magnetic field 31. And when demagnetizing, the rotating shaft 4 drives the scattering component 5 to rotate, and the scattering component 5 scatters the magnetically agglomerated materials in the demagnetizing magnetic field 31. Because the operation of breaing up lasts when the ore pulp passes through demagnetizing field 31, can fully break up the particle of the magnetic agglomeration that magnetism is zero for the moment in the process of breaing up, the particle of magnetic agglomeration is opened very easily this moment to improve the dispersion effect to magnetic agglomeration magnetic force greatly. And due to the disturbance action of the rotating shaft 4 and the scattering part 5, the path and time of iron ore particles in the demagnetizing field 31 are prolonged, so that the iron ore is demagnetized in the demagnetizing field 31 more fully.

Preferably, the input pipe 2 and the output pipe 3 are respectively provided with an end cover 21, two ends of the rotating shaft 4 are rotatably connected to the end covers 21, and the end of the rotating shaft 4 is provided with a driving power for driving the rotating shaft 4 to rotate. The ore pulp is input into the main conveying pipe through the input pipe 2 and then output through the output pipe 3. The end caps 21 on the input pipe 2 and the output pipe 3 support the rotating shaft 4, and the sealing effect of the pipeline and the outflow of ore pulp are avoided. Further, the driving power is a motor (not shown in the figure). The motor directly drives the rotating shaft 4 or drives the rotating shaft 4 to rotate through the speed reducing mechanism.

Preferably, the material inlet 23 of the input pipe 2 and the material outlet 24 of the output pipe 3 are arranged upward, and the inner cavity of the demagnetizing main pipe 1 can be filled with ore pulp. The material inlet 23 of the input pipe 2 and the material outlet 24 of the output pipe 3 are arranged upwards, and the input pipe 2, the material main pipe and the output pipe 3 form a U-shaped structure. The ore pulp can naturally fill the inner cavity of the whole demagnetizing main pipe 1.

Preferably, the demagnetization coil 3 is a tower coil. The demagnetizing coils 3 can be other types of demagnetizing coils 3 adopted by existing demagnetizers.

Preferably, the rotating shaft 4 and the scattering member 5 are made of a non-magnetic material. The rotating shaft 4 and the scattering part 5 are made of non-magnetic materials, so that the iron ore is prevented from being adsorbed on the rotating shaft 4 and the scattering part 5.

Preferably, the rotating shaft 4 and the scattering member 5 are made of metal, and the scattering member 5 is welded to the rotating shaft 4. The metal material is a non-magnetic conductive metal material. The scattering component 5 is connected with the rotating shaft 4 in a welding mode, and is firm in structure and convenient to process.

Furthermore, the scattering member 5 is a rod-shaped scattering rod 51, the scattering rod 51 on the rotating shaft 4 is perpendicular to the rotating shaft 4, and two scattering rods 51 adjacent to each other in the axial direction are perpendicular to each other. The scattering member 5 may have a square shape or a blade shape.

Preferably, the rotating shaft 4 in the input pipe 2 and the output pipe 3 is also provided with a scattering member 5. Therefore, the material can be broken up in an auxiliary way by the breaking-up part 5 before and after the material enters the demagnetizing field 31, and the material dispersing effect is improved.

Preferably, the demagnetizing main pipe 1 is connected with the input pipe 2 and the output pipe 3 through flanges 22. Therefore, the input pipe 2 and the output pipe 3 are conveniently connected with the demagnetizing main pipe 1, and the assembly and the later maintenance are convenient.

Compared with the prior art, the utility model discloses a setting is broken up the operation to the iron ore of magnetic agglomeration in the ore pulp in demagnetizing field 31, compares in breaking up again after the demagnetization, and dispersion effect is better, has prolonged the distance and the time of iron ore in demagnetizing field moreover, and demagnetization effect is better.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.

Claims

1. A demagnetizing device with good demagnetizing effect is characterized by comprising a demagnetizing main pipe, an input pipe, an output pipe, a demagnetizing coil and a rotating shaft, wherein the input pipe and the output pipe are arranged at two ends of the demagnetizing main pipe; the demagnetizing coil is arranged on the outer wall of the demagnetizing main pipe, the rotating shaft penetrates through the demagnetizing main pipe along the length direction of the demagnetizing main pipe and can rotate in the demagnetizing main pipe, and a plurality of scattering components located in the demagnetizing field range of the demagnetizing coil are fixedly arranged on the rotating shaft.

2. The demagnetizing device with good demagnetizing effect as defined in claim 1, wherein said input tube and said output tube are respectively provided with an end cap, both ends of said rotating shaft are rotatably connected to said end caps, and the end of said rotating shaft is provided with a driving power for driving the rotating shaft to rotate.

3. The demagnetizing device with good demagnetizing effect as defined in claim 2, wherein the driving power is a motor.

4. The demagnetizing device with good demagnetizing effect as defined in claim 1, wherein the material inlet of the input pipe and the material outlet of the output pipe are disposed upward, and the inner cavity of the main demagnetizing pipe can be filled with mineral slurry.

5. The demagnetizing device with good demagnetizing effect as defined in claim 1, wherein the demagnetizing coil is a tower coil.

6. A demagnetizing device with an excellent demagnetizing effect as defined in claim 1, wherein the rotating shaft and the scattering member are made of a non-magnetic material.

7. The demagnetizing device with good demagnetizing effect as defined in claim 1, wherein said rotating shaft and said scattering member are made of metal, and said scattering member is welded to said rotating shaft.

8. A demagnetizing device with good demagnetizing effect as defined in claim 1, wherein said scattering members are rod-shaped scattering rods, the scattering rods on said rotating shaft are perpendicular to the rotating shaft, and two scattering rods axially adjacent to each other are perpendicular to each other.

9. The demagnetizing device with good demagnetizing effect as defined in claim 1, wherein the rotating shafts in the input pipe and the output pipe are provided with scattering members.

10. The demagnetizing device with good demagnetizing effect as defined in claim 1, wherein the main demagnetizing pipe is connected to the input pipe and the output pipe via flanges.