Lithium carbonate slurry demagnetizing device

Abstract

The utility model discloses a lithium carbonate slurry demagnetizer device which comprises a demagnetizer upper cover and a demagnetizer box wall, a plurality of tightening screw bayonets are arranged on the side portion of the demagnetizer upper cover, the tightening screw bayonets arranged on the demagnetizer upper cover are connected to the upper end of the demagnetizer box wall through screws and threads, a handle is fixedly installed on the upper portion of the demagnetizer upper cover, and the handle is connected with the demagnetizer box wall. U-shaped neodymium magnets are embedded in the lower portion of the demagnetizing device upper cover in a sliding mode, a plurality of radial magnetizing neodymium magnets are fixedly installed on the lower portion of the demagnetizing device upper cover in a threaded mode, the number of the U-shaped neodymium magnets is four, and the installation positions of the U-shaped neodymium magnets are located on the front side, the rear side, the left side and the right side of the demagnetizing device upper cover respectively. The U-shaped neodymium magnets and the radial magnetizing neodymium magnets are installed at the lower end of the demagnetizer upper cover and are distributed with the four U-shaped neodymium magnets in a crossed mode, and due to the fact that the U-shaped neodymium magnets and the radial magnetizing neodymium magnets are arranged in the demagnetizer in a crossed mode for use, the outer surface of the whole magnetic bar has magnetism, the effects of the maximum demagnetizing capacity and the maximum demagnetizing area are achieved, the demagnetizing efficiency is improved, and the quality of lithium carbonate is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of demagnetization equipment, in particular to a lithium carbonate slurry demagnetization device. Background Art

[0002] During the preparation of battery-grade lithium carbonate using the sulfuric acid method, the operation of each device and the raw ore will carry and produce a lot of magnetic substances, thus affecting the purity of lithium carbonate. In order to improve the quality of lithium carbonate, multi-stage and multi-frequency demagnetization is required;

[0003] The existing manual pipeline iron removers are generally made of neodymium iron boron or ferrite materials through radial magnetization. The magnetic bar is composed of multiple cylindrical strong magnetic blocks connected in series or a whole strong magnetic bar. The magnetic field is mainly distributed on two magnetic poles. This manufacturing process has the problem of weak magnetic fields in many areas on the magnetic bar, and the magnetic force cannot meet the requirements of adsorption and demagnetization, resulting in insufficient demagnetization effect of the magnetic bar of the manual pipeline iron remover.

[0004] Therefore, the utility model proposes a lithium carbonate slurry demagnetizer device based on the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the magnetic rod of the manual pipeline iron remover in the prior art is made of cylindrical strong magnetic blocks connected in series or a whole strong magnetic rod. This manufacturing process has the problem that the magnetic field is weak in many areas on the magnetic rod, and the magnetic force cannot meet the requirements of adsorption and demagnetization, resulting in the lack of demagnetization effect of the magnetic rod of the manual pipeline iron remover.

[0006] Therefore, according to the above problem, the utility model proposes a lithium carbonate slurry demagnetizer device, including a demagnetizer upper cover and a demagnetizer box wall. A plurality of tightening screw sockets are provided on the side of the demagnetizer upper cover. The tightening screw sockets provided on the demagnetizer upper cover are threadedly connected to the upper end of the demagnetizer box wall through screws. A handle is fixedly installed on the upper part of the demagnetizer upper cover. A U-shaped neodymium magnet is slidably embedded in the lower part of the demagnetizer upper cover. A plurality of radially magnetized neodymium magnets are threadedly fixedly installed on the lower part of the demagnetizer upper cover. Four U-shaped neodymium magnets are provided, and their installation positions are respectively located on the front, back, left and right sides of the demagnetizer upper cover. Four radially magnetized neodymium magnets are also provided, and their installation positions are located at the lower end of the demagnetizer upper cover and are cross-distributed with the four U-shaped neodymium magnets.

[0007] Preferably: a plurality of U-shaped magnet arc embedding grooves are provided on the side wall of the lower part of the upper cover of the demagnetizer, a depression is provided on the upper end of the U-shaped neodymium magnet, and the U-shaped neodymium magnet is slidably embedded in the U-shaped magnet arc embedding groove through the depression.

[0008] Preferably, the demagnetizer upper cover and the demagnetizer box wall are both made of 304 stainless steel with excellent corrosion resistance.

[0009] Beneficial effect: Because the U-shaped neodymium magnets and radially magnetized neodymium magnets are cross-arranged in the demagnetizer, the outer surface of the entire magnetic rod is magnetic, achieving the maximum demagnetization capacity and demagnetization area, improving the demagnetization efficiency and enhancing the quality of lithium carbonate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a top view schematic diagram of the overall structure of the utility model;

[0011] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0012] Figure 3 It is a left view of the U-shaped neodymium magnet of the overall structure of the utility model;

[0013] Figure 4 It is a front view of a U-shaped neodymium magnet of the overall structure of the utility model;

[0014] Figure 5 It is a schematic diagram of magnetic distribution of radially magnetized neodymium magnets with an overall structure of the utility model.

[0015] Figures 1 to 5 The reference numerals are: demagnetizer upper cover 1, U-shaped magnet with arc embedding groove 11, tightening screw bayonet 2, demagnetizer box wall 3, radially magnetized neodymium magnet 4, handle 5, U-shaped neodymium magnet 6, recess 601, and magnetic rod 602. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] In the figure, Figure 4 and Figure 5 The red bump in the middle represents the N pole of the magnetic bar; the blue bump represents the S pole of the magnetic bar; the white lines represent the direction of the magnetic flux lines;

[0018] Reference Figure 1-5The present embodiment provides a lithium carbonate slurry demagnetizer device, including a demagnetizer upper cover 1 and a demagnetizer box wall 3. The side of the demagnetizer upper cover 1 is provided with a plurality of tightening screw bayonet holes 2. The tightening screw bayonet holes 2 arranged on the demagnetizer upper cover 1 are threadedly connected to the upper end of the demagnetizer box wall 3 through screws. A handle 5 is fixedly installed on the upper part of the demagnetizer upper cover 1. A U-shaped neodymium magnet 6 is slidably embedded in the lower part of the demagnetizer upper cover 1. The U-shaped neodymium magnet 6 consists of a magnetic bar 602 with an S pole and an N pole plus a connecting rod. The right side of the S pole magnetic bar 602 is integrally fixedly connected to the N pole magnetic bar 602. The right side of the N pole magnetic bar 602 is integrally fixedly installed on the connecting rod. The lower part of the demagnetizer upper cover 1 is threadedly fixedly installed A plurality of radially magnetized neodymium magnets 4 are installed, and the left and right sides of the radially magnetized neodymium magnets 4 are N poles and S poles respectively. Four U-shaped neodymium magnets 6 are provided, and the installation positions are respectively located on the front, back, left and right sides of the demagnetizer upper cover 1. Four radially magnetized neodymium magnets 4 are also provided, and the installation position is located at the lower end of the demagnetizer upper cover 1 and is cross-distributed with the four U-shaped neodymium magnets 6. The radially magnetized neodymium magnets 4 and the U-shaped neodymium magnets 6 are made of neodymium iron boron material. When in use, since the U-shaped neodymium magnets 6 and the radially magnetized neodymium magnets 4 are cross-arranged in the demagnetizer, the outer surface of the entire magnetic rod is magnetic, thereby achieving the maximum demagnetization capacity and demagnetization area, improving the demagnetization efficiency and enhancing the quality of lithium carbonate.

[0019] Preferably: a plurality of U-shaped magnet arc embedding grooves 11 are provided on the side wall of the lower part of the demagnetizer upper cover 1, and a recess 601 is provided on the upper end of the U-shaped neodymium magnet 6, through which the U-shaped neodymium magnet 6 passes, and the recess 601 slides and is embedded in the U-shaped magnet arc embedding groove 11. By reserving the U-shaped magnet arc embedding groove 11 on the demagnetizer upper cover 1, efficient demagnetization is ensured and the disassembly and replacement of the U-shaped neodymium magnet 6 is convenient.

[0020] Preferably, the demagnetizer upper cover 1 and the demagnetizer box wall 3 are both made of 304 stainless steel with excellent corrosion resistance, ensuring the overall corrosion resistance of the demagnetizer while controlling the magnetic field range to exist only inside the demagnetizer box wall 3 .

[0021] Working principle:

[0022] Before the magnetic energy of a magnet is activated, it needs to go through five processes: mining, melting, grinding, pressing and sintering. The material of the present invention is neodymium iron boron material. The neodymium magnet is magnetized by pulse magnetization to achieve the purpose of enhancing the magnetic field strength. The magnetic rod is improved from the traditional columnar neodymium magnet to a U-shaped neodymium magnet 6 and a radially magnetized neodymium magnet 4 to enhance the effective demagnetization area. The electrophoresis process is used to enhance the corrosion resistance. During the pressing process, the method of manufacturing the U-shaped magnet is used to give the two poles. Because it is used for demagnetization of lithium carbonate, a certain corrosion resistance is required. Therefore, during the sintering process, the electrophoresis process is used to make the neodymium magnet have excellent corrosion resistance. When magnetizing the U-shaped magnetic rod, a pulse magnetization method is used to make it have a stronger magnetic field. The arrangement is combined with the radially magnetized neodymium magnet rod in a cross configuration, so that the magnetic field is fully covered in the magnetic box.

[0023] When in use, since the U-shaped neodymium magnet 6 and the radially magnetized neodymium magnet 4 are arranged crosswise in the demagnetizer, the outer surface of the entire magnetic rod has magnetism, achieving the maximum demagnetization capacity and demagnetization area, improving the demagnetization efficiency and enhancing the quality of lithium carbonate;

[0024] Tested using:

[0025] The magnetic content of the semi-finished product demagnetized by the existing demagnetizer technology is between 200ppb and 1000ppb, the magnetic induction intensity is between 8000 and 16000 Gauss, the peak value can reach 16000 Gauss, and the demagnetization area is 1 / 3 of the area of ​​the entire magnetic rod; and the present invention, by using the U-shaped neodymium magnet 6 that has been subjected to the electrophoresis process and pulse magnetization, and cross-arranging it with the radially magnetized neodymium magnet 4, increases the demagnetization area and strengthens the magnetic field; under the same material and the same specification, the U-shaped magnet is parallel because of the two stages, The magnetic field utilization rate is the highest, the surface magnetic force will be stronger, and the magnetic rod of the demagnetizer made of U-shaped magnet can achieve that the entire magnetic rod is magnetic, and the adsorption area of ​​magnetic materials is wider; the magnetic content of the semi-finished product of the present invention is 30-800ppb according to actual measurement, and the demagnetization rate is increased by at least 20% compared with the prior art; the magnetic induction intensity can reach 8500-20000 gauss according to the process requirements, and the magnetic induction intensity is increased by 25%; the demagnetization area reaches 1 / 2 of the entire magnetic rod, which is 50% larger than the demagnetization area of ​​the prior art

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A demagnetizer device for lithium carbonate slurry, comprising a demagnetizer upper cover (1) and a demagnetizer box wall (3), wherein a plurality of tightening screw bayonets (2) are provided on the side of the demagnetizer upper cover (1), the tightening screw bayonets (2) provided on the demagnetizer upper cover (1) are connected to the upper end of the demagnetizer box wall (3) through screw threads, and a handle (5) is fixedly installed on the upper part of the demagnetizer upper cover (1), characterized in that: A U-shaped neodymium magnet (6) is slidably embedded in the lower part of the demagnetizer upper cover (1), and a plurality of radially magnetized neodymium magnets (4) are threadedly fixedly mounted on the lower part of the demagnetizer upper cover (1).

2. The lithium carbonate slurry demagnetizer device according to claim 1, characterized in that: A plurality of U-shaped magnet arc embedding grooves (11) are provided on the side wall of the lower part of the demagnetizer upper cover (1), a recess (601) is provided on the upper end of the U-shaped neodymium magnet (6), and the U-shaped neodymium magnet (6) is slidably engaged and embedded in the U-shaped magnet arc embedding groove (11) through the recess (601).

3. The lithium carbonate slurry demagnetizer device according to claim 1, characterized in that: The U-shaped neodymium magnets (6) are provided with four, and their installation positions are respectively located at the front, back, left, and right sides of the demagnetizer upper cover (1). The radially magnetized neodymium magnets (4) are also provided with four, and their installation positions are located at the lower end of the demagnetizer upper cover (1) and are distributed in a cross pattern with the four U-shaped neodymium magnets (6).

4. The lithium carbonate slurry demagnetizer device according to claim 1, characterized in that: As described above, the demagnetizer upper cover (1) and the demagnetizer box wall (3) are both made of 304 stainless steel with excellent corrosion resistance.

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