A magnetic separator

Abstract

The invention discloses a magnetic separator, which relates to the technical field of magnetic separators and solves the problem that a common perfect circular slurry groove causes the slurry to have a large acceleration during the sliding process, and the slurry with a large acceleration causes the slurry to pass through a magnetic component at a too fast speed, which leads to the undesirable phenomenon of uneven screening. The key points of the technical solution are as follows: the slurry groove is used to load the slurry, a medium component is arranged in the slurry groove and used to adsorb metal objects in the slurry, a driving component is used to drive the medium component to move along the slurry groove, and a magnetic component wrapping the slurry groove. The slurry groove includes an arc-shaped buffer section for slowing down the flow rate of the slurry, so that the slurry can obtain a relatively uniform flow rate when sliding in the slurry groove, which can effectively improve the magnetic separation efficiency when the slurry flows through the magnetic component, and can also greatly improve the magnetic separation effect.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic separators, and in particular to a magnetic separator. Background Art

[0002] Magnetic separator is an important iron ore dressing equipment, which is divided into wet type and dry type, and is usually composed of a frame, a magnetic separation drum, a magnetic system and a drive device. In order to improve the utilization rate of iron ore resources, most magnetic separation plants in my country recycle and reuse the magnetic iron minerals contained in the tailings they discharge.

[0003] The existing magnetic separator includes a conveyor belt, a slurry tank for loading the mineral slurry to be screened, and magnetic components arranged on both sides of the slurry tank. The slurry tank is arranged on the conveyor belt. The existing magnetic separator generally uses a perfect circular slurry tank, but the perfect circular slurry tank will cause the slurry to have a large acceleration during the sliding process. The slurry with a large acceleration will cause the slurry to pass through the magnetic component too fast, which will cause the minerals in the slurry to be adsorbed by the magnetic component, resulting in uneven screening. Summary of the invention

[0004] The object of the present invention is to provide a magnetic separator which has the advantages of enabling the slurry to obtain a relatively uniform flow rate when sliding in the slurry tank, effectively improving the magnetic separation efficiency when the slurry flows through the magnetic component, and greatly improving the effect of the magnetic separation.

[0005] The above technical purpose of the present invention is achieved through the following technical scheme: a magnetic separator, including a slurry trough for loading slurry, a medium component arranged in the slurry trough and used to adsorb metal objects in the slurry, a driving component for driving the medium component to move along the slurry trough, and a magnetic component wrapping the slurry trough, wherein the slurry trough includes an arc-shaped buffer section for slowing down the flow rate of the slurry.

[0006] According to a further configuration of the present invention, a cross section of the arc-shaped buffer segment is semi-elliptical along the major axis of the ellipse.

[0007] According to a further configuration of the present invention, the arc-shaped buffer section includes a first buffer end and a second buffer end protruding from the magnetic component, the first buffer end is provided with a feed port for slurry input, and the second buffer end is provided with a first discharge port for output after screening.

[0008] According to a further configuration of the present invention, the slurry trough includes a first flushing end for flushing the slurry after screening, and a second discharge port for flushing the minerals after magnetic separation; a filter assembly is provided in the second discharge port, and the first flushing end faces the second discharge port.

[0009] According to a further configuration of the present invention, the arc-shaped buffer section includes a first buffer zone, a second buffer zone and a third buffer zone which are smoothly connected in sequence, the first buffer zone is connected to the feed port, and the third buffer zone is connected to the first discharge port; the first buffer zone has an increasing curvature radius along the direction close to the feed port, and the third buffer zone has an increasing curvature radius in the direction close to the first discharge port.

[0010] By adopting the above technical scheme, when the slurry is input into the slurry tank from the feed port, and flows from the first buffer zone through the second buffer zone along the arc-shaped buffer section, and then flows through the third buffer zone, so that the slurry tank is loaded with slurry; then, the driving component will drive the medium component to pass through the slurry in the slurry tank along the arc-shaped buffer section, and the metal minerals in the slurry will adhere to the medium component under the action of the magnetic component, thereby completing the magnetic separation process of the metal minerals in the slurry; when the medium component passes through the magnetic component along the arc-shaped buffer section, the flushing end in the open state will flush the metal minerals on the medium component, and the metal minerals attached to the medium component will be directly impacted to the second discharge port under the impact of the strong water flow, and clean solid metal minerals can be obtained through the filtering component, thereby completing the slurry screening and the preliminary purification process of the minerals.

[0011] Since the arc buffer section is semi-elliptical, when the slurry slides down from the high point of the arc buffer section, the slurry can obtain a more uniform flow rate when sliding in the slurry tank, and the magnetic separation efficiency of the medium component is improved by increasing the time for the slurry to pass through the magnetic component, thereby improving the magnetic separation efficiency of the metal minerals in the slurry; so as to effectively reduce the medium component's inability to fully magnetically separate the metal minerals in the slurry when the slurry flow rate is fast. In addition, the semi-elliptical arc buffer section can make the movement of the medium component smoother, thereby reducing the overall failure rate of the machine.

[0012] According to a further configuration of the present invention, the magnetic component is arranged along the contour line of the arc-shaped buffer segment to match the arc-shaped buffer segment.

[0013] By adopting the above technical solution, the cross-sectional shape of the magnetic component can be matched with the arc-shaped buffer section, that is, the cross-sectional shape of the magnetic component is also a semi-elliptical arc, which can make the magnetic field strength more concentrated, thereby facilitating further improving the magnetic separation efficiency when the slurry flows through the magnetic component, and also facilitating greatly improving the effect of magnetic separation.

[0014] According to a further configuration of the present invention, the magnetic component includes a first magnetic component and a second magnetic component, the first magnetic component and the second magnetic component are respectively arranged on both sides of the slurry groove along the material path, and the medium component is arranged between the first magnetic component and the second magnetic component.

[0015] According to a further configuration of the present invention, the magnetic component is an electromagnetic coil or a permanent magnet.

[0016] By adopting the above technical solution, the magnetic components can be arranged on both sides of the slurry groove in the horizontal direction or on both sides of the vertical direction along the material path according to actual use needs, which can facilitate improving the layout of the magnetic components.

[0017] According to a further configuration of the present invention, the medium assembly includes a first medium and a second medium adjacently arranged along the width direction of the slurry groove; the driving assembly includes a first driving member and a second driving member, the first medium is arranged on the movable end of the first driving member, and the movable end of the first driving member drives the first medium to reciprocate along the contour line of the arc-shaped buffer section; the second medium is arranged on the movable end of the second driving member, and the movable end of the second driving member drives the second medium to reciprocate along the contour line of the arc-shaped buffer section.

[0018] According to a further configuration of the present invention, the first medium and the second medium are arranged adjacent to each other in a side-by-side arrangement along a material feeding direction, and are arranged overlapping with each other in a side-by-side arrangement direction.

[0019] By adopting the above technical solution, since the first medium and the second medium are arranged adjacently, the first medium and the second medium can enter or move out of the magnetic component without affecting each other. After the first medium enters the magnetic component to complete the first magnetic separation process, the first medium continues to move under the drive of the first driving member until it moves out of the working range of the magnetic component; then, when the first medium moves to pass through the magnetic component, the first flushing end flushes the first medium extending out of the magnetic component, so that the metal minerals attached to the first medium can be impacted into the second discharge port, and filtered through the filter component in the second discharge port, thereby obtaining the metal minerals; similarly, when the second medium moves to pass through the magnetic component, the second flushing end flushes the second medium extending out of the magnetic component, so that the metal minerals attached to the second medium can be impacted into the third discharge port, and filtered through the filter component in the third discharge port, thereby obtaining the metal minerals; by allowing the first medium and the second medium to continuously pass through the slurry of the arc-shaped buffer section, so that the slurry is always in a working state of being magnetically separated, thereby greatly improving the working efficiency of the magnetic separation process.

[0020] In summary, the present invention has the following beneficial effects:

[0021] 1. It can make the slurry obtain a more uniform flow rate when sliding in the slurry tank;

[0022] 2. By increasing the time that the slurry passes through the magnetic component, the magnetic separation efficiency of the slurry when it flows through the magnetic component can be effectively improved, and the effect of magnetic separation can be greatly improved;

[0023] 3. The magnetic components matched with the pulp tank can greatly improve the effect of magnetic separation.

[0024] In general, the present invention can achieve a relatively uniform flow rate when the slurry slides in the slurry tank, can effectively improve the magnetic separation efficiency when the slurry flows through the magnetic component, and can also greatly improve the effect of magnetic separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural schematic diagram of embodiment 1;

[0026] Figure 2 It is a schematic diagram of the structure in which the first magnetic member and the second magnetic member are arranged on both sides in the horizontal direction in the first embodiment;

[0027] Figure 3 It is a schematic diagram of the structure in which the first magnetic member and the second magnetic member are arranged on both sides in the vertical direction in the third embodiment;

[0028] Figure 4 is a structural diagram of Embodiment 2;

[0029] Figure 5 It is a structural schematic diagram of embodiment 2 from another perspective.

[0030] Figure numerals: 1. feed port; 2. first discharge port; 3. slurry trough; 31. arc-shaped buffer section; 311. first buffer end; 312. second buffer end; 4. drive assembly; 41. first drive member; 42. second drive member; 5. magnetic assembly; 51. first magnetic member; 52. second magnetic member; 6. first flushing end; 7. filter assembly; 8. second discharge port; 9. second flushing end; 10. third discharge port; 11. medium assembly; 111. first medium; 112. second medium. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] Embodiment 1:

[0033] A magnetic separator, such as Figure 1 and Figure 3 As shown, the magnetic separator comprises a slurry tank 3 for loading slurry, a medium component 11 disposed in the slurry tank 3 and used to absorb metal objects in the slurry, a driving component 4 for driving the medium component 11 to move along the slurry tank 3, and a magnetic component 5 wrapping the slurry tank 3. In this embodiment, the medium component 11 is a medium component with a through hole commonly used in magnetic separators. The medium component 11 slides along the two outer sides of the slurry tank 3 through a pulley pair.

[0034] The slurry tank 3 includes an arc-shaped buffer section 31 for slowing down the flow rate of the slurry. The cross section of the arc-shaped buffer section 31 is semi-elliptical along the major axis direction of the ellipse. The arc-shaped buffer section 31 includes a first buffer end 311 and a second buffer end 312 protruding from the magnetic component 5. The first buffer end 311 is provided with a feed port 1 for slurry input, and the second buffer end 312 is provided with a first discharge port 2 for output after screening. The slurry tank 3 includes a first flushing end 6 for flushing the slurry after screening, and a second discharge port 8 for flushing minerals after magnetic separation; a filter component 7 is provided in the second discharge port 8, and the first flushing end 6 faces the second discharge port 8. The arc-shaped buffer section 31 includes a first buffer zone, a second buffer zone and a third buffer zone which are smoothly connected in sequence. The first buffer zone is connected to the feed port 1, and the third buffer zone is connected to the first discharge port 2; the first buffer zone has an increasing curvature radius along the direction close to the feed port 1, and the third buffer zone has an increasing curvature radius in the direction close to the first discharge port 2.

[0035] When the slurry is input into the slurry tank 3 from the feed port 1, and flows from the first buffer zone through the second buffer zone along the arc-shaped buffer section 31, and then flows through the third buffer zone, so that the slurry tank 3 is loaded with slurry; then, the driving component 4 will drive the medium component 11 to pass through the slurry in the slurry tank 3 along the arc-shaped buffer section 31, and the metal minerals in the slurry will adhere to the medium component 11 under the action of the magnetic component 5, thereby completing the magnetic separation process of the metal minerals in the slurry; when the medium component 11 passes through the magnetic component 5 along the arc-shaped buffer section 31, the flushing end in the open state will flush the metal minerals on the medium component 11, and the metal minerals attached to the medium component 11 will be directly impacted to the second discharge port 8 under the impact of the strong water flow, and clean solid metal minerals can be obtained through the filtering component 7, thereby completing the slurry screening and preliminary purification process of the minerals.

[0036] Since the arc buffer section 31 is in an elliptical arc shape, when the slurry slides downward from the high point of the arc buffer section 31, the slurry can obtain a relatively uniform flow rate when sliding in the slurry tank 3, and the time for the slurry to pass through the magnetic component 5 is increased, so as to improve the magnetic separation efficiency of the medium component 11, thereby facilitating the improvement of the magnetic separation efficiency of the metal minerals in the slurry; so as to effectively reduce the inability of the medium component 11 to fully magnetically separate the metal minerals in the slurry when the slurry flow rate is fast. In addition, the arc buffer section 31 in a semi-elliptical arc shape can make the movement of the medium component 11 smoother, thereby facilitating the reduction of the overall failure rate of the machine.

[0037] The magnetic component 5 is arranged along the contour line of the arc-shaped buffer segment 31 to match the arc-shaped buffer segment 31, so that the cross-sectional shape of the magnetic component 5 can match the arc-shaped buffer segment 31, that is, the cross-section of the magnetic component 5 is also a semi-elliptical arc, which can make the magnetic field strength more concentrated, thereby facilitating further improving the magnetic separation efficiency when the slurry flows through the magnetic component 5, and also facilitating greatly improving the magnetic separation effect.

[0038] The magnetic assembly 5 includes a first magnetic member 51 and a second magnetic member 52, and the first magnetic member 51 and the second magnetic member 52 are respectively arranged on both sides of the slurry tank 3 along the material path, and the medium assembly 11 is arranged between the first magnetic member 51 and the second magnetic member 52. The first magnetic member 51 and the second magnetic member 52 are respectively arranged on both sides of the slurry tank 3 along the material path in the vertical direction. The magnetic assembly 5 is an electromagnetic coil or a permanent magnet. In this embodiment, the first magnetic member 51 and the second magnetic member 52 are two sets of electromagnetic coils commonly used in magnetic separators in the technical field. The magnetic assembly 5 can be arranged on both sides of the horizontal direction or the vertical direction of the slurry tank 3 along the material path according to actual use needs, which can facilitate the layout of the magnetic assembly 5. In this embodiment, the first magnetic member 51 and the second magnetic member 52 are respectively arranged on both sides of the horizontal direction of the slurry tank 3 along the material path. The material path of the slurry tank 3 is the path where the slurry flows along the inner wall of the slurry tank 3.

[0039] Embodiment 2:

[0040] like Figures 1 to 5 As shown, the difference between the second embodiment and the first embodiment is: the arrangement form of the medium component 11, and the newly added second flushing end 9 and the third discharge port 10, the second flushing end 9 and the third discharge port 10 are symmetrically arranged with the first flushing end 6 and the second discharge port 8; the first flushing end 6 and the second flushing end 9 both use fan-shaped high-pressure nozzles. In the second embodiment, the medium component 11 includes a first medium 111 and a second medium 112 arranged adjacently along the width direction of the slurry tank 3; the driving component 4 includes a first driving member 41 and a second driving member 42, the first medium 111 is arranged on the movable end of the first driving member 41, and the movable end of the first driving member 41 drives the first medium 111 to reciprocate along the contour line of the arc-shaped buffer section 31; the second medium 112 is arranged on the movable end of the second driving member 42, and the movable end of the second driving member 42 drives the second medium 112 to reciprocate along the contour line of the arc-shaped buffer section 31. The first medium 111 and the second medium 112 are arranged adjacently and side by side along the material feeding direction, and are arranged overlapping with each other along the side-by-side direction of the two. The overlapping arrangement of the first medium 111 and the second medium 112 allows this embodiment to use fewer components in the process of implementing staggered magnetic separation and iron removal, thereby facilitating the reduction of the failure rate of the machine, and also allows the first medium 111 and the second medium 112 to adhere to more metal minerals, thereby improving the efficiency of magnetic separation.

[0041] In this embodiment, the first driving member 41 and the second driving member 42 are linear cylinders, but are not limited thereto, and may also be screw rod moving sub-mechanisms, that is, any mechanism that can achieve a linear movement function.

[0042] Since the first medium 111 and the second medium 112 are arranged adjacent to each other, the first medium 111 and the second medium 112 are not affected by each other when they enter or move out of the magnetic component 5. After the first medium 111 enters the magnetic component 5 to complete the first magnetic separation process, the first medium 111 continues to move under the drive of the first driving member 41 until it moves out of the working range of the magnetic component 5; then, when the first medium 111 moves to pass through the magnetic component 5, the first flushing end 6 flushes the first medium 111 extending out of the magnetic component 5, so that the metal minerals attached to the first medium 111 are impacted into the second discharge port 8, and filtered through the filter component 7 in the second discharge port 8, thereby obtaining the metal minerals; similarly, when the second medium 112 After moving to pass through the magnetic component 5, the second flushing end 9 flushes the second medium 112 extending out of the magnetic component 5, so that the metal minerals attached to the second medium 112 are impacted into the third discharge port 10, and filtered through the filter component 7 in the third discharge port 10, so as to obtain the metal minerals; by allowing the first medium 111 and the second medium 112 to continuously pass through the slurry of the arc-shaped buffer section 31, so that the slurry is always in a working state of magnetic separation, thereby greatly improving the working efficiency of the magnetic separation process; by using a plurality of groups of medium components 11 staggered.

[0043] Embodiment three:

[0044] like Figures 1 to 3 As shown, the difference between the third embodiment and the first embodiment lies in the arrangement of the magnetic component 5. In the third embodiment, the first magnetic component 51 and the second magnetic component 52 are respectively arranged on both sides of the slurry groove 3 in the vertical direction along the material path.

[0045] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A magnetic separator, comprising a slurry tank (3) for loading slurry, a medium component (11) arranged in the slurry tank (3) and used to absorb metal objects in the slurry, a driving component (4) for driving the medium component (11) to move along the slurry tank (3), and a magnetic component (5) wrapping the slurry tank (3), characterized in that the slurry tank (3) comprises an arc-shaped buffer section (31) for slowing down the flow rate of the slurry; the arc-shaped buffer section (31) comprises a first buffer end (311) and a second buffer end (312) protruding from the magnetic component (5), the first buffer end (311) is provided with a feed port (1) for inputting slurry, and the second buffer end (312) is provided with a first discharge port (2) for outputting after screening ... first buffer end (312) for outputting after screening; the arc-shaped buffer section (31) comprises a first buffer end (311) and a second buffer end (312) pro The first buffer zone (110) is connected to the feed port (1), and the third buffer zone (1110) is connected to the first discharge port (2). The first buffer zone has an increasing curvature radius in a direction close to the feed port (1), and the third buffer zone has an increasing curvature radius in a direction close to the first discharge port (2). The medium component (11) comprises a first medium (111) and a second medium (112) arranged adjacent to each other along the width direction of the slurry tank (3). The driving component (4) comprises a first driving member (41) and a second driving member (42). The first medium (111) is arranged on the movable end of the first driving member (41), and the movable end of the first driving member (41) drives the first medium (111) to reciprocate along the contour line of the arc-shaped buffer section (31). The second medium (112) is arranged on the movable end of the second driving member (42), and the movable end of the second driving member (42) drives the second medium (112) to reciprocate along the contour line of the arc-shaped buffer section (31).

2. A magnetic separator according to claim 1, characterized in that: The magnetic component (5) is arranged along the contour line of the arc-shaped buffer section (31) to match and correspond to the arc-shaped buffer section (31).

3. A magnetic separator according to claim 1, characterized in that: The cross section of the arc-shaped buffer section (31) is semi-elliptical in shape along the major axis direction of the ellipse.

4. A magnetic separator according to claim 1, characterized in that: The magnetic component (5) comprises a first magnetic component (51) and a second magnetic component (52), wherein the first magnetic component (51) and the second magnetic component (52) are respectively arranged on both sides of the slurry groove (3) along the material feeding path, and the medium component (11) is arranged between the first magnetic component (51) and the second magnetic component (52).

5. A magnetic separator according to claim 1, characterized in that: The first medium (111) and the second medium (112) are arranged adjacent to each other and side by side along the material running direction, and are arranged overlapping with each other along the side by side direction.

6. A magnetic separator according to claim 1, characterized in that: The magnetic component (5) is an electromagnetic coil or a permanent magnet.

7. A magnetic separator according to claim 1, characterized in that: The slurry tank (3) comprises a first flushing end (6) for flushing the slurry after screening, and a second discharge port (8) for flushing the minerals after magnetic separation; a filter assembly (7) is arranged in the second discharge port (8), and the first flushing end (6) faces the second discharge port (8).

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