Feeding device and magnetic separation equipment

Abstract

According to the ore feeding device and the magnetic separation equipment, an ore feeding opening and an ore discharging opening are formed in the circumferential wall of an ore feeding pipe, and a first spiral channel formed in a rotational flow assembly extends around the axial direction of the ore feeding pipe; therefore, ore pulp entering the ore feeding pipe from the ore feeding opening can form rotational flow along the first spiral channel to be laterally dispersed and led to the ore outlet, the ore pulp is not prone to agglomeration, the ore pulp discharged from the ore outlet and entering the magnetic separator is evenly distributed, and it is guaranteed that the magnetic separator has a better separation effect.

Description

Technical Field

[0001] The present application relates to the field of magnetic separation technology, and in particular to an ore feeding device and a magnetic separation equipment. Background Art

[0002] The magnetic separator mainly separates magnetic minerals through magnetic force. The feeding device transports the slurry to the magnetic separator. The slurry distribution is different during the separation process, and the separation effect will also be different.

[0003] At present, the ore feeding devices are mainly tube-type and chute-type, and the ore feeding uniformity is not ideal, especially for magnetic separators with magnetic tube length ≥ 6 meters, which affects the sorting effect of the magnetic separator. Utility Model Content

[0004] The purpose of the present application is to provide an ore feeding device and a magnetic separation device, in which the ore pulp is not easy to agglomerate, and the ore pulp discharged from the ore outlet and entering the magnetic separator is evenly distributed, thereby ensuring that the magnetic separator has a better sorting effect.

[0005] The embodiments of the present application can be implemented as follows:

[0006] In a first aspect, the utility model provides a feeding device, comprising a feeding pipe and a swirl assembly, wherein a feeding port and an ore outlet are arranged on the circumferential wall of the feeding pipe, the swirl assembly is arranged in the feeding pipe, and the swirl assembly forms a first spiral channel extending axially around the feeding pipe, and the first spiral channel is connected to both the feeding port and the ore outlet.

[0007] In an optional embodiment, the ore feeding pipe includes a pipe body and a branch pipe, the branch pipe is connected to the circumferential wall of the pipe body at an angle, and the inner cavity of the pipe body and the inner cavity of the branch pipe are connected, one end of the branch pipe away from the pipe body constitutes the ore feeding port, and the portion of the circumferential wall of the pipe body away from the branch pipe constitutes the ore outlet;

[0008] The swirl assembly is at least partially located in the pipe body, and the first spiral channel extends around the axial direction of the pipe body.

[0009] In an optional embodiment, part of the swirl component is located in the branch pipe, and the part located in the branch pipe forms a second spiral channel, which extends axially around the branch pipe and is connected to the middle part of the first spiral channel.

[0010] In an optional embodiment, the cyclone assembly includes a first pipe portion and a second pipe portion, the first pipe portion is located in the branch pipe, the second pipe portion is located in the pipe body, one end of the first pipe portion away from the ore feeding port is connected to the circumferential wall of the second pipe portion, and the inner cavity of the first pipe portion is connected to the inner cavity of the second pipe portion;

[0011] wherein the circumferential wall of the first tube portion forms the first spiral channel;

[0012] The second pipe part is an open-loop structure, and its open-loop position is correspondingly connected to the ore outlet, and the circumferential wall of the second pipe part forms the second spiral channel.

[0013] In an optional embodiment, the swirl assembly includes at least two first tube portions and at least two second tube portions nested in sequence from the inside to the outside, the first tube portions and the second tube portions corresponding one to one from the inside to the outside, wherein the axial lengths of the two adjacent first tube portions inside and outside and the axial lengths of the two adjacent second tube portions inside and outside are different.

[0014] In an optional embodiment, within the tube main body, the axial length of each of the second tube portions gradually increases from the inside to the outside.

[0015] In an optional embodiment, the swirl assembly further includes a first swirl guide plate disposed between two inner and outer adjacent first tube portions and a second swirl guide plate disposed between two inner and outer adjacent second tube portions;

[0016] The first swirl guide plate is spirally undulating around the axial direction of the branch pipe, and a second spiral channel located at the outermost side is formed between the outermost first swirl guide plate and the branch pipe; among all the first swirl guide plates, except the outermost first swirl guide plate, each of the other first swirl guide plates and a first tube portion located outside the first swirl guide plate forms a second spiral channel;

[0017] The second swirl guide plate is spirally undulating around the axial direction of the tube main body, and a first spiral channel located on the outermost side is formed between the outermost second swirl guide plate and the tube main body; among all the second swirl guide plates, except the outermost second swirl guide plate, each other second swirl guide plate and a second tube portion located outside itself form a first spiral channel.

[0018] In an optional embodiment, the central axis of the branch pipe intersects at the midpoint of the central axis of the pipe body.

[0019] In an optional embodiment, a connecting flange is installed at one end of the branch pipe away from the pipe body.

[0020] In a second aspect, the utility model provides a magnetic separation device, comprising a magnetic separator and an ore feeding device as described in any one of the aforementioned embodiments, wherein the ore outlet is connected to the ore inlet of the magnetic separator.

[0021] Compared with the prior art, the beneficial effects of the embodiments of the present application include, for example:

[0022] By arranging a feeding port and an outlet on the circumferential wall of the feeding pipe, since the first spiral channel formed on the cyclone assembly extends around the axial direction of the feeding pipe, the slurry entering the feeding pipe from the feeding port will form a cyclone along the first spiral channel and disperse laterally toward the outlet. The slurry is not easy to agglomerate, and the slurry discharged from the outlet and entering the magnetic separator is evenly distributed, ensuring that the magnetic separator has a better sorting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a half-section schematic diagram of the ore feeding device according to an embodiment of the present application.

[0025] Icons: 10-feeding pipe; 11-pipe body; 12-branch pipe; 13-connecting flange; 14-feeding port; 15-discharging port; 20-first pipe section; 21-second pipe section; 30-first swirl guide plate; 31-second swirl guide plate; 40-first spiral channel; 41-second spiral channel. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Combine the following Figure 1 , some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0033] The embodiment of the present application discloses a magnetic separation device, which includes a magnetic separator and a feeding device. The feeding device is mainly used to provide ore pulp from the previous process to the magnetic separator to facilitate further separation by the magnetic separator.

[0034] Specifically, the feeding device includes a feeding pipe 10 and a cyclone assembly. A feeding port 14 and an outlet port 15 are arranged on the circumferential wall of the feeding pipe 10. The cyclone assembly is arranged in the feeding pipe 10. The cyclone assembly forms a first spiral channel 40 extending axially around the feeding pipe 10. The first spiral channel 40 is connected with both the feeding port 14 and the outlet port 15. The outlet port 15 is used to connect with the ore inlet of the magnetic separator.

[0035] In this way, by arranging the feed port 14 and the outlet port 15 on the circumferential wall of the feed pipe 10, since the first spiral channel 40 formed on the cyclone assembly extends around the axial direction of the feed pipe 10, the slurry entering the feed pipe 10 from the feed port 14 will form a cyclone along the first spiral channel 40 and disperse laterally to the outlet port 15. The slurry is not easy to agglomerate, and the slurry discharged from the outlet port 15 and entering the magnetic separator is evenly distributed, ensuring that the magnetic separator has a better sorting effect.

[0036] In detail, the feeding pipe 10 is specifically a T-shaped pipe structure, that is, the feeding pipe 10 includes a pipe body 11 and a branch pipe 12, the branch pipe 12 is connected to the circumferential wall of the pipe body 11 at an angle, and the inner cavity of the pipe body 11 and the inner cavity of the branch pipe 12 are connected, the end of the branch pipe 12 away from the pipe body 11 constitutes a feeding port 14, and the portion of the circumferential wall of the pipe body 11 opposite to the branch pipe 12 constitutes a discharge port 15; accordingly, the swirl assembly is at least partially located in the pipe body 11, and the first spiral channel 40 extends around the axial direction of the pipe body 11.

[0037] In this way, after the ore slurry enters from the end of the branch pipe 12 (the feeding port 14), it starts to diffuse in a spiral shape from the middle part of the first spiral channel 40 in the axial direction of the pipe body 11 to the two ends of the pipe body 11. When the ore slurry flows to the position where the first spiral channel 40 is connected to the ore outlet 15, it is directly discharged from the ore outlet 15.

[0038] In this embodiment, part of the cyclone component is located in the branch pipe 12, and the part located in the branch pipe 12 forms a second spiral channel 41, which extends around the axial direction of the branch pipe 12. The second spiral channel 41 is connected to the middle part of the first spiral channel 40. In this way, when the slurry enters from the feed port 14, it directly passes through the second spiral channel 41 to form a cyclone and then enters the first spiral channel 40, further improving the dispersion effect of the slurry.

[0039] Specifically, the cyclone assembly includes a first pipe portion 20 and a second pipe portion 21, the first pipe portion 20 is located in the branch pipe 12, and the second pipe portion 21 is located in the pipe body 11, and the end of the first pipe portion 20 away from the feeding port 14 is connected to the circumferential wall of the second pipe portion 21, and the inner cavity of the first pipe portion 20 and the inner cavity of the second pipe portion 21 are connected; wherein, the circumferential wall of the first pipe portion 20 forms a first spiral channel 40; the second pipe portion 21 is an open-loop structure, and the second pipe portion 21 is an open-loop structure, and its open-loop position is correspondingly connected to the ore outlet 15, so that the circumferential wall of the second pipe portion 21 forms a second spiral channel 41 which can be connected to the ore outlet 15, and the arrangement of multiple second pipe portions 21 nested inside and outside can also ensure that the second spiral channel 41 formed by each second pipe portion 21 is also connected to the ore outlet 15.

[0040] Optionally, the cyclone assembly includes at least two first tube portions 20 and at least two second tube portions 21 nested in sequence from the inside to the outside, the first tube portion 20 and the second tube portion 21 corresponding one to one from the inside to the outside, and the axial lengths of the two adjacent first tube portions 20 inside and outside and the axial lengths of the two adjacent second tube portions inside and outside are different. In this way, there are at least two second spiral channels 41 independent of each other inside and outside in the branch pipe 12, and at least one first spiral channel 40 independent of each other inside and outside in the pipe body 11. Each first spiral channel 40 is connected to the ore outlet 15, and each second spiral channel 41 is correspondingly connected to the middle part of a first spiral channel 40. In this way, after the slurry enters from the ore feeding port 14, it will be divided into at least two cyclone graded diffusion inside and outside to better break up the slurry agglomeration and further ensure the uniform distribution and dispersion of the slurry.

[0041] Among them, in the pipe body 11, the axial length of each second pipe part 21 from the inside to the outside gradually increases, which is conducive to the manufacture of the entire ore feeding device and reduces the process difficulty.

[0042] The cyclone assembly also includes a first cyclone guide plate 30 arranged between two adjacent first tube portions 20 and a second cyclone guide plate 31 arranged between two adjacent second tube portions 21. The first cyclone guide plate 30 corresponds to and intersects the second cyclone guide plate 31, so that the first cyclone guide plate 30 can separate the inner and outer first tube portions 20 to form second spiral channels 41 respectively, and the second cyclone guide plate 31 can separate the inner and outer second tube portions 21 to form first spiral channels 40 respectively, thereby achieving axially uniform distribution of slurry in the branch pipe 12 and the pipe body 11 respectively.

[0043] Among them, in the tube body 11, the end of the inner second tube portion 21 of the two adjacent second tube portions 21 is flush with the end of the second swirl guide plate 31 to avoid the second swirl guide plate 31 blocking the axial space between the inner and outer second tube portions 21, thereby ensuring the inner and outer second tube portions 21.

[0044] In order to form the first spiral channel 40 and the second spiral channel 41, the swirl assembly further includes a first swirl guide plate 30 disposed between two inner and outer adjacent first tube portions 20 and a second swirl guide plate 31 disposed between two inner and outer adjacent second tube portions 21;

[0045] The first swirl guide plate 30 is spirally undulating around the axial direction of the branch pipe 12, and a second spiral channel 41 located at the outermost side is formed between the outermost first swirl guide plate 30 and the branch pipe 12; among all the first swirl guide plates 30, except for the outermost first swirl guide plate 30, each of the other first swirl guide plates 30 and a first pipe portion 20 located outside the first swirl guide plate 30 forms a second spiral channel 41;

[0046] The second swirl guide plate 31 is spirally undulating around the axial direction of the tube body 11, and a first spiral channel 40 located on the outermost side is formed between the outermost second swirl guide plate 31 and the tube body 11; among all the second swirl guide plates 31, except the outermost second swirl guide plate 31, each of the other second swirl guide plates 31 and a second tube portion 21 located outside itself forms a first spiral channel 40.

[0047] The central axis of the branch pipe 12 intersects the midpoint of the central axis of the pipe body 11. A connecting flange 13 is installed at one end of the branch pipe 12 away from the pipe body 11, which is convenient for connecting the branch pipe 12 with the equipment of the previous process.

[0048] It can be understood that both ends of the above-mentioned barrel body and both ends of the second tube portion 21 are closed, so as to force the slurry to flow directly from the first spiral channel 40 to the ore outlet 15, and the slurry will not flow out from the gap between the second cyclone guide plate 31 and the end of the second tube portion 21 (i.e., the end of the first spiral channel 40) due to the open ends.

[0049] Of course, in some embodiments, the feed pipe 10 can also be a straight tube body with closed ends, and the axial lengths of the corresponding first swirl guide plate 30 and the first tube portion 20 are reduced to corresponding sizes to ensure that the feed port 14 has multiple layers of second spiral channels 41 inside and outside.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A feeding device, It is characterized in that The invention comprises a feeding pipe (10) and a cyclone assembly, wherein a feeding port (14) and a ore outlet (15) are arranged on the circumferential wall of the feeding pipe (10), the cyclone assembly is arranged in the feeding pipe (10), and the cyclone assembly forms a first spiral channel (40) extending around the axial direction of the feeding pipe (10), and the first spiral channel (40) is connected to both the feeding port (14) and the ore outlet (15).

2. The ore feeding device according to claim 1, It is characterized in that The ore feeding pipe (10) comprises a pipe body (11) and a branch pipe (12), wherein the branch pipe (12) is connected to the circumferential wall of the pipe body (11) in an angled manner, and the inner cavity of the pipe body (11) and the inner cavity of the branch pipe (12) are in communication, and one end of the branch pipe (12) away from the pipe body (11) constitutes the ore feeding port (14), and a portion of the circumferential wall of the pipe body (11) away from the branch pipe (12) constitutes the ore outlet (15); The swirl assembly is at least partially located in the pipe body (11), and the first spiral channel (40) extends around the axial direction of the pipe body (11).

3. The ore feeding device according to claim 2, It is characterized in that The swirl component is also partially located in the branch pipe (12), and the portion located in the branch pipe (12) forms a second spiral channel (41), the second spiral channel (41) extends around the axial direction of the branch pipe (12), and the second spiral channel (41) is connected to the middle part of the first spiral channel (40).

4. The ore feeding device according to claim 3, It is characterized in that The cyclone assembly comprises a first pipe portion (20) and a second pipe portion (21), the first pipe portion (20) being located in the branch pipe (12), the second pipe portion (21) being located in the pipe body (11), one end of the first pipe portion (20) away from the ore feeding port (14) being connected to a circumferential wall of the second pipe portion (21), and an inner cavity of the first pipe portion (20) and an inner cavity of the second pipe portion (21) being connected; wherein the circumferential wall of the first tube portion (20) forms the first spiral channel (40); The second pipe part (21) is an open-loop structure, and its open-loop position is correspondingly connected to the ore outlet (15), and the circumferential wall of the second pipe part (21) forms the second spiral channel (41).

5. The ore feeding device according to claim 4, It is characterized in that The swirl assembly comprises at least two first tube portions (20) and at least two second tube portions (21) which are nested in sequence from the inside to the outside, wherein the first tube portions (20) and the second tube portions (21) correspond one to one from the inside to the outside, wherein the axial lengths of the two adjacent first tube portions (20) inside and outside and the axial lengths of the two adjacent second tube portions inside and outside are different.

6. The ore feeding device according to claim 5, It is characterized in that In the tube body (11), the axial length of each of the second tube parts (21) increases gradually from the inside to the outside.

7. The ore feeding device according to claim 5, It is characterized in that The swirl assembly further comprises a first swirl guide plate (30) arranged between two inner and outer adjacent first tube portions (20) and a second swirl guide plate (31) arranged between two inner and outer adjacent second tube portions (21); The first swirl guide plate (30) is spirally undulating around the axial direction of the branch pipe (12), and a second spiral channel (41) located at the outermost side is formed between the outermost first swirl guide plate (30) and the branch pipe (12); among all the first swirl guide plates (30), except for the outermost first swirl guide plate (30), each of the other first swirl guide plates (30) and a first pipe portion (20) located outside the first swirl guide plate (30) forms a second spiral channel (41); The second swirl guide plate (31) is spirally undulating around the axial direction of the tube body (11), and a first spiral channel (40) located at the outermost side is formed between the outermost second swirl guide plate (31) and the tube body (11); among all the second swirl guide plates (31), except for the outermost second swirl guide plate (31), each of the other second swirl guide plates (31) and a second tube portion (21) located outside the second swirl guide plate (31) forms a first spiral channel (40).

8. The ore feeding device according to claim 2, It is characterized in that The central axis of the branch pipe (12) intersects at the midpoint of the central axis of the pipe body (11).

9. The ore feeding device according to claim 2, It is characterized in that A connecting flange (13) is installed at one end of the branch pipe (12) away from the pipe body (11).

10. A magnetic separation device, It is characterized in that It comprises a magnetic separator and the ore feeding device according to any one of claims 1 to 9, wherein the ore outlet (15) is connected to the ore inlet of the magnetic separator.

Images