Electromagnetic pulsed magnetic separator with preselected chamber
Patent Information
- Application Number
- CN202522114430.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
[0002]电磁浆料磁选机广泛用于新能源、资源回收、非金属矿、化学、食品等行业，可以去除物料中的弱磁性杂质颗粒；在非金属矿的提纯生产中，铁及其他磁性杂质会影响矿物的品质；例如，在新能源行业中，材料在制备成电池后，若存在大颗粒金属会刺穿电池隔膜，发生微短路，产生自放电，刺穿隔膜后，引起的自放电速度加快，最终可能引起电池燃烧、爆炸，造成安全事故
1、本实用新型的进料管道与分选筒之间设有预选腔，预选腔内设有第二磁介质；在分选过程中，励磁线圈通电产生强磁场，强磁场能够使分选腔内的第一磁介质产生磁性的同时，位于分选腔外部的剩磁能够使预选腔内的第二磁介质产生磁性，产生磁性的第二磁介质能够预选出物料中的强磁性颗粒，从而降低进入到分选腔内的磁性颗粒量，避免发生堵塞的同时提高除铁效果，结构简单，操作简便。
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Figure CN224793700U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of magnetic separation equipment for slurry, and specifically to an electromagnetic slurry magnetic separator with a pre-selection chamber. Background Technology
[0002] Electromagnetic slurry separators are widely used in industries such as new energy, resource recycling, non-metallic minerals, chemicals, and food. They can remove weakly magnetic impurity particles from materials. In the purification and production of non-metallic minerals, iron and other magnetic impurities can affect the quality of the minerals. For example, in the new energy industry, if large metal particles are present after the materials are made into batteries, they can puncture the battery separator, causing a micro-short circuit and generating self-discharge. After puncturing the separator, the self-discharge rate is accelerated, which may eventually cause the battery to burn or explode, resulting in a safety accident.
[0003] In the existing electromagnetic slurry separator, the residual magnetism outside the separation chamber is not utilized during the material separation process. This not only leads to a waste of energy, but also causes all magnetic particles to be separated inside the separation chamber. This results in a large throughput of magnetic media in the separation chamber, a short separation time per cycle, and a tendency to clog, which seriously affects the iron removal effect.
[0004] Therefore, designing an electromagnetic slurry separator with a pre-selection chamber that can fully utilize the residual magnetism outside the separation chamber, reduce the amount of magnetic particles entering the separation chamber during the separation stage, avoid blockage, and improve the iron removal effect is an urgent problem to be solved at present. Summary of the Invention
[0005] To address the problems existing in the prior art, this utility model provides an electromagnetic slurry separator with a pre-selection chamber. A pre-selection chamber is provided between the feed pipe and the separation cylinder. During the separation process, the excitation coil is energized to generate a strong magnetic field. The second magnetic medium in the pre-selection chamber generates magnetism under the action of the residual magnetism located outside the separation chamber, which can pre-select strongly magnetic particles in the material, thereby reducing the amount of magnetic particles entering the separation chamber, avoiding blockage, and improving the iron removal effect. The structure is simple and the operation is convenient.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An electromagnetic slurry separator with a pre-selection chamber, comprising: Magnetic system; A vertically arranged sorting cylinder passes through the magnetic system; magnetic pole heads are provided inside both ends of the sorting cylinder, and a sorting cavity is formed in the area between the two magnetic pole heads inside the sorting cylinder. The magnetic pole heads have material channels communicating with the sorting cavity; a first magnetic medium is provided inside the sorting cavity. An excitation coil is disposed within the magnetic system and sleeved outside the sorting cavity; A pre-selection cavity is located at one end of the sorting cylinder, and a second magnetic medium is provided inside the pre-selection cavity; A feed pipe is connected to the pre-selection chamber, and the second magnetic medium is located between the feed pipe and the sorting cylinder.
[0007] As a preferred technical solution, a disc distributor is provided between the feed pipe and the pre-selection chamber.
[0008] As a preferred technical solution, a truss is provided inside the preselected cavity, and the second magnetic medium is fixed inside the truss.
[0009] As a preferred technical solution, the truss is arranged around the inner wall of the preselected cavity.
[0010] As a preferred technical solution, the upper surface of the pre-selected cavity is set as a spherical surface.
[0011] As a preferred technical solution, a receiving groove is provided on the outer surface of the magnetic pole head near the preselection cavity.
[0012] As a preferred technical solution, the pre-selection cavity is located above the sorting cylinder; Alternatively, the pre-selection cavity may be located below the sorting cylinder.
[0013] As a preferred technical solution, the end of the sorting cylinder away from the pre-selection chamber is provided with a discharge pipe.
[0014] As a preferred technical solution, the first magnetic medium is configured as a medium disk or a magnetic medium mesh; And / or, the second magnetic medium is set as steel wool or a magnetic medium mesh.
[0015] As a preferred technical solution, the feed pipe and the connection port of the pre-selection chamber, as well as the axes of the pre-selection chamber and the sorting cylinder, are all collinear.
[0016] The beneficial effects of this utility model are as follows: 1. The present invention has a pre-selection chamber between the feed pipe and the sorting cylinder, and a second magnetic medium is provided in the pre-selection chamber. During the sorting process, the excitation coil is energized to generate a strong magnetic field. The strong magnetic field can make the first magnetic medium in the sorting chamber magnetic, while the residual magnetism outside the sorting chamber can make the second magnetic medium in the pre-selection chamber magnetic. The magnetic second magnetic medium can pre-select the strongly magnetic particles in the material, thereby reducing the amount of magnetic particles entering the sorting chamber, avoiding blockage and improving the iron removal effect. The structure is simple and the operation is convenient.
[0017] 2. The disc distributor of this utility model can make the material enter the pre-selection chamber evenly, improve the adsorption effect of the second magnetic medium on strongly magnetic particles, and ensure that the material enters the sorting chamber evenly, thereby improving the iron removal effect. Attached Figure Description
[0018] Figure 1 This is an overall structural diagram of a first embodiment of an electromagnetic slurry separator with a pre-selection chamber according to the present invention; Figure 2 for Figure 1 Enlarged view of region A in the middle; Figure 3 for Figure 1 A schematic diagram of the upper magnetic pole head in the middle; Figure 4 for Figure 1 A schematic diagram of the truss structure in the diagram; Figure 5 This is an overall structural diagram of a second embodiment of the electromagnetic slurry separator with a pre-selection cavity according to the present invention.
[0019] In the diagram: 1-Magnetic system, 2-Sorting cylinder, 21-Sorting chamber, 3-Magnetic pole head, 31-Material channel, 32-Receiving tank, 4-Excitation coil, 5-Pre-selection chamber, 51-Truss, 6-Feed pipe, 7-Disc distributor, 8-Discharge pipe. Detailed Implementation
[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings. Example 1
[0021] Please refer to Figures 1-4 This invention relates to an embodiment of an electromagnetic slurry separator with a pre-selection cavity, comprising a magnetic system 1, a sorting cylinder 2, an excitation coil 4, a pre-selection cavity 5, and a feed pipe 6. The sorting cylinder 2 is vertically arranged and passes through the magnetic system 1. Magnetic pole heads 3 are provided inside both ends of the sorting cylinder 2. A sorting cavity 21 is formed in the area between the two magnetic pole heads 3 inside the sorting cylinder 2. The magnetic pole heads 3 have material channels 31 communicating with the sorting cavity 21. A first magnetic medium is provided inside the sorting cavity 21. The excitation coil 4 is located inside the magnetic system 1 and sleeved outside the sorting cavity 21. The magnetic field generated by the energized magnetic coil 4 can magnetize the first magnetic medium, thereby attracting magnetic particles in the material. The pre-selection chamber 5 is located above the sorting cylinder 2. The pre-selection chamber 5 is equipped with a second magnetic medium. After the excitation coil 4 is energized, the residual magnetism located outside the sorting chamber 21 can magnetize the second magnetic medium. The material first passes through the second magnetic medium, which can pre-sort out the strongly magnetic particles in the material. The feed pipe 6 is connected to the pre-selection chamber 5. The second magnetic medium is located between the feed pipe 6 and the sorting cylinder 2. The material enters the pre-selection chamber 5 from the feed pipe 6.
[0022] It should be noted that in actual production, the magnetic field strength at the first magnetic medium is 10,000-15,000 GS, and the magnetic field strength at the second magnetic medium is 3,000-5,000 GS. When the material passes through the second magnetic medium, the second magnetic medium can adsorb about 45% of the magnetic particles in the material, preventing these ferromagnetic particles from entering the first magnetic medium, thereby greatly reducing the sorting pressure of the first magnetic medium.
[0023] In this embodiment, please refer to Figure 1 and Figure 2 A disc distributor 7 is provided between the feed pipe 6 and the pre-selection chamber 5. The disc distributor 7 can make the material enter the pre-selection chamber 5 evenly, improve the adsorption effect of the second magnetic medium on strong magnetic particles, and ensure that the material enters the sorting chamber 21 evenly, thereby improving the iron removal effect.
[0024] Further, please refer to Figures 1-3 A truss 51 is provided in the pre-selection cavity 5, and the second magnetic medium is fixed in the truss 51 to ensure that the second magnetic medium is stably positioned in the pre-selection cavity 5, so that the material passes through the second magnetic medium before entering the sorting cavity 21.
[0025] Specifically, please refer to Figure 1 and Figure 2 The truss 51 is arranged around the inner wall of the preselection cavity 5, so that it can effectively fix the second magnetic medium without occupying too much internal space of the preselection cavity 5.
[0026] Accordingly, please refer to Figure 1 and Figure 2 The upper surface of the pre-selection cavity 5 is set as a spherical surface, which facilitates matching with the disc-shaped distributor 7 while ensuring that the material passes through the second magnetic medium evenly.
[0027] Furthermore, please refer to Figure 1 , Figure 2 and Figure 4 The outer surface of the magnetic pole head 3 (i.e., the upper magnetic pole head) located at the upper end of the preselection cavity 5 is provided with a receiving groove 32. The receiving groove 32 can further increase the volume of the preselection cavity 5, thereby allowing more second magnetic media to be placed, thus achieving a better preselection effect.
[0028] In this embodiment, please refer to Figure 1 The lower end of the sorting cylinder 2 is provided with a discharge pipe 8, through which the material after being sorted by the first magnetic medium is discharged.
[0029] Specifically, the first magnetic medium is preferably a medium disk or a magnetic medium mesh; the second magnetic medium is preferably steel wool or a magnetic medium mesh; and when both the first and second magnetic media are magnetic medium meshes, the mesh size of the first magnetic medium should be smaller than that of the second magnetic medium, so that the first magnetic medium can better adsorb the magnetic particles passing through the first magnetic medium and ensure the magnetic separation effect.
[0030] Please refer to the following for clarification: Figure 1 In order to ensure smooth material flow and improve sorting effect, the connection port between the feed pipe 6 and the pre-selection chamber 5, as well as the axis of the pre-selection chamber 5 and the sorting cylinder 2, should all be collinear.
[0031] Please refer to Figures 1-4 The specific operation process of this utility model is as follows: Sorting process: The strong magnetic field generated by the excitation coil 4 causes the first magnetic medium and the second magnetic medium to become magnetic at the same time; the material flows in from the feed pipe 6 and flows from top to bottom. In the pre-selection chamber 5, the second magnetic medium pre-sorts out the strong magnetic particles in the material, and then in the sorting chamber 21, the first magnetic medium sorts out the remaining magnetic particles in the material. The sorted material is discharged from the discharge pipe 8.
[0032] Iron removal process: The excitation coil 4 is de-energized, the first and second magnetic media are demagnetized, and the cleaning water flows in from the discharge pipe 8 and flows from bottom to top, rinsing the first and second magnetic media in sequence, so that all the magnetic particles are discharged from the feed pipe 6 with the cleaning water. Example 2
[0033] Please refer to Figure 5 The main difference between this embodiment and embodiment one is that the pre-selection chamber 5 is located below the sorting cylinder 2. Correspondingly, the feed pipe 6 is located below the pre-selection chamber 5, and the discharge pipe 8 is located above the sorting cylinder 2. During the sorting process, the material flows in from the feed pipe 6 and flows from bottom to top. After being pre-selected by the second magnetic medium and sorted by the first magnetic medium, it is finally discharged from the discharge pipe 8.
[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An electromagnetic slurry separator with a pre-selection chamber, characterized in that, include: Magnetic system (1); A vertically arranged sorting cylinder (2) passes through the magnetic system (1); both ends of the sorting cylinder (2) are provided with magnetic pole heads (3), and the area between the two magnetic pole heads (3) inside the sorting cylinder (2) forms a sorting cavity (21). The magnetic pole head (3) has a material channel (31) communicating with the sorting cavity (21); a first magnetic medium is provided inside the sorting cavity (21). Excitation coil (4), the excitation coil (4) is located inside the magnetic system (1) and sleeved outside the sorting cavity (21); A pre-selection cavity (5) is located at one end of the sorting cylinder (2), and a second magnetic medium is provided inside the pre-selection cavity (5); Feed pipe (6) is connected to the pre-selection chamber (5), and the second magnetic medium is located between the feed pipe (6) and the sorting cylinder (2).
2. The electromagnetic slurry separator with a pre-selection chamber according to claim 1, characterized in that, A disc distributor (7) is provided between the feed pipe (6) and the pre-selection chamber (5).
3. An electromagnetic slurry separator with a pre-selection chamber according to claim 1 or 2, characterized in that, The preselected cavity (5) is provided with a truss (51), and the second magnetic medium is fixed inside the truss (51).
4. An electromagnetic slurry separator with a pre-selection chamber according to claim 3, characterized in that, The truss (51) is arranged around the inner wall of the preselected cavity (5).
5. An electromagnetic slurry separator with a pre-selection chamber according to claim 4, characterized in that, The upper surface of the preselected cavity (5) is set as a spherical surface.
6. An electromagnetic slurry separator with a pre-selection chamber according to claim 3, characterized in that, A receiving groove (32) is provided on the outer surface of the magnetic pole head (3) near the preselection cavity (5).
7. An electromagnetic slurry separator with a pre-selection chamber according to claim 1, characterized in that, The pre-selection cavity (5) is located above the sorting cylinder (2); Alternatively, the pre-selection cavity (5) may be located below the sorting cylinder (2).
8. An electromagnetic slurry separator with a pre-selection chamber according to claim 1, characterized in that, The sorting cylinder (2) has a discharge pipe (8) at one end away from the pre-selection chamber (5).
9. An electromagnetic slurry separator with a pre-selection chamber according to claim 1, characterized in that, The first magnetic medium is configured as a medium disk or a magnetic medium mesh; And / or, the second magnetic medium is set as steel wool or a magnetic medium mesh.
10. An electromagnetic slurry separator with a pre-selection chamber according to claim 1, characterized in that, The feed pipe (6) and the connection port of the pre-selection cavity (5), as well as the axes of the pre-selection cavity (5) and the sorting cylinder (2), are all collinear.