Magnetic medium cartridge for direct cooling

Abstract

The utility model relates to a direct cooling magnetic medium box convenient to disassemble belongs to experimental device technical field of high gradient magnetic separation process mechanism research, the direct cooling magnetic medium box convenient to disassemble, including openwork frame, several groups of magnetic medium unit and positioning bolt, the openwork frame bottom is equipped with the locating block, and the openwork frame upper portion is equipped with the locating square hole, every group of magnetic medium unit includes both sides' locating sheet and the even arrangement of several magnetic medium between locating sheet, wherein every locating sheet bottom end both sides are equipped with the convex. Magnetic medium assembles, will several groups of magnetic medium unit install in the openwork frame inside in proper order, then passes through the insertion locating bolt in locating square hole, when magnetic medium box disassembles, then takes out locating bolt and magnetic medium unit in proper order. The utility model discloses magnetic medium box, for studying the capture characteristic of particle on magnetic medium, not only more easily disassembles, still can adopt liquid nitrogen and directly cools the freezing of magnetic product, realizes the separate collection of single magnetic medium capture particle.

Description

Technical Field

[0001] This utility model relates to a magnetic medium box for direct cooling that is easy to disassemble, and belongs to the technical field of experimental devices for studying the mechanism of high gradient magnetic separation process. Background Technology

[0002] High-gradient magnetic separation is a key technology for recovering weakly magnetic materials and is widely used in the separation of weakly magnetic minerals and the purification of non-magnetic minerals. The magnetic medium is the core component of a high-gradient magnetic separator; therefore, the capture characteristics of particles on the magnetic medium are an important aspect of theoretical research in high-gradient magnetic separation. However, current experiments analyzing the capture characteristics of magnetic media are mostly limited to single magnetic media rods, while in actual working conditions, the magnetic media box contains a large number of cross-arranged magnetic media rods, and the magnetic media rods at different spatial locations exhibit significantly different capture behaviors. Therefore, there is an urgent need to invent a flexibly detachable experimental magnetic media box, combined with a freezing experiment method, to achieve the analysis of the capture characteristics of the magnetic media at different locations.

[0003] Chinese patent CN106093813A discloses a method for experimentally analyzing the trapping of magnetic medium single filaments. The magnetic medium box in this invention consists of two perforated magnetic medium plates connected together, through which the magnetic medium filament can pass. However, this method has significant shortcomings: firstly, the spacing between the magnetic medium filaments is too large, making the experimental results difficult to represent the actual system; secondly, in this method, particles trapped by the magnetic medium rod at different locations cannot be collected and analyzed individually.

[0004] Chinese patent CN119319035A discloses a magnetic media box device and method for analyzing the high-gradient magnetic separation capture mechanism. In this invention, the magnetic media stack is assembled from several magnetic media units and placed in a magnetic media box with a cooling chamber. However, this magnetic media box is an indirectly cooled magnetic media box. When the magnetic accumulator is frozen, the magnetic media units are stuck to the closed stainless steel inner wall by ice, making disassembly very difficult. Utility Model Content

[0005] To address the problems and shortcomings of the existing technology, this utility model provides a magnetic medium box for direct cooling that is easy to disassemble. After capturing magnetic particles, the magnetic medium box of this utility model can be directly cooled with liquid nitrogen, making it not only easier to disassemble but also enabling individual collection of magnetic particles captured by a single magnetic medium. This utility model is achieved through the following technical solution.

[0006] A magnetic medium box for direct cooling that is easy to disassemble includes a hollow frame 1, several sets of magnetic medium units 2 and positioning pins 3;

[0007] The bottom of the hollow frame 1 is provided with a positioning block, and the upper part of the hollow frame 1 is provided with a positioning square hole 1-1;

[0008] Each magnetic medium unit 2 includes positioning plates 2-1 on both sides and several magnetic mediums 2-2 evenly arranged between the positioning plates 2-1, wherein each positioning plate 2-1 has protrusions on both sides of its bottom end;

[0009] Several sets of magnetic media units 2 are installed sequentially inside the hollow frame 1, and then the entire assembly of the direct cooling magnetic media box is completed by inserting positioning pins 3 into the positioning square holes 1-1.

[0010] When disassembling the magnetic medium box, first remove the positioning pin 3 from the positioning square hole 1-1, and then remove the magnetic medium unit 2 in sequence.

[0011] The hollow frame 1 is used to assemble several sets of magnetic media units 2. The hollow frame 1 has a six-sided hollow structure, which facilitates the disassembly of several sets of magnetic media units 2.

[0012] The hollow frame 1 is made of non-magnetic stainless steel, and the magnetic medium unit 2 is installed inside the hollow frame 1.

[0013] Each positioning piece 2-1 in the magnetic medium unit 2 has protrusions on both sides of its bottom end, leaving gaps between adjacent magnetic medium units 2 for easy disassembly.

[0014] The magnetic medium unit 2 has a single layer or more in the vertical direction, and can also be divided into multiple smaller magnetic medium units 2 in the horizontal direction.

[0015] This easily disassembled magnetic medium box for direct cooling is used in high-gradient magnetic separation experiments under direct cooling methods such as cold air or liquid nitrogen. It is easy to disassemble and can achieve individual collection of particles captured by a single magnetic medium.

[0016] After capturing magnetic particles, the magnetic medium box of this utility model can be directly cooled with liquid nitrogen to freeze the magnetic particles. When disassembling the magnetic medium box, first remove the positioning pin 3 from the positioning square hole 1-1, and then remove the magnetic medium unit 2 in sequence.

[0017] The beneficial effects of this utility model are:

[0018] (1) The structure of the experimental magnetic medium box has been changed from the traditional fixed type to a detachable type, which makes the arrangement and combination of magnetic media more flexible. By adjusting the shape, diameter, spacing and other parameters of the magnetic media in the magnetic medium unit, any configuration can be arranged and combined according to actual needs. When multiple configurations of magnetic medium boxes are used in the experiment, compared with the traditional fixed magnetic medium box, the detachable magnetic medium box provided by this utility model only requires partial replacement of the magnetic medium unit, so the manufacturing cost is lower.

[0019] (2) There are gaps between adjacent magnetic media units in this detachable test magnetic media box, and the main frame is a hollow structure, making it easier to disassemble.

[0020] (3) The magnetic medium box of this utility model can be directly cooled by liquid nitrogen, which has a higher cooling efficiency compared with the indirect cooling method of cooling chamber. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the magnetic medium box structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the magnetic media unit assembly of this utility model;

[0023] Figure 3 This is a physical image of the magnetic medium box of this utility model.

[0024] In the diagram: 1-Hollow frame, 1-1 positioning square hole; 2-Magnetic medium unit, 2-1 is positioning piece, 2-2 is magnetic medium; 3-Positioning pin. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] like Figures 1 to 3 As shown, the easily disassembled magnetic medium box for direct cooling includes a hollow frame 1, several sets of magnetic medium units 2 and positioning pins 3;

[0028] The bottom of the hollow frame 1 is provided with a positioning block, and the upper part of the hollow frame 1 is provided with a positioning square hole 1-1;

[0029] Each magnetic medium unit 2 includes positioning plates 2-1 on both sides and several magnetic mediums 2-2 evenly arranged between the positioning plates 2-1, wherein each positioning plate 2-1 has protrusions on both sides of its bottom end;

[0030] Several sets of magnetic media units 2 are installed sequentially inside the hollow frame 1, and then the entire assembly of the direct cooling magnetic media box is completed by inserting positioning pins 3 into the positioning square holes 1-1.

[0031] When disassembling the magnetic medium box, first remove the positioning pin 3 from the positioning square hole 1-1, and then remove the magnetic medium unit 2 in sequence.

[0032] The hollow frame 1 is used to assemble several sets of magnetic media units 2. The hollow frame 1 has a six-sided hollow structure, which facilitates the disassembly of several sets of magnetic media units 2.

[0033] The hollow frame 1 is made of non-magnetic stainless steel, and the magnetic medium unit 2 is installed inside the hollow frame 1.

[0034] Each positioning piece 2-1 in the magnetic medium unit 2 has protrusions on both sides of its bottom end, leaving gaps between adjacent magnetic medium units 2 for easy disassembly.

[0035] The magnetic medium unit 2 has a single layer or more in the vertical direction, and can also be divided into multiple smaller magnetic medium units 2 in the horizontal direction.

[0036] The steps for using this easily disassembled direct cooling magnetic media box are as follows:

[0037] Using 100g of ilmenite tailings with a particle size of -200 mesh (70%) and a TiO2 content of 4.69% as raw material, this practical magnetic media box was used to conduct experimental research. The specific implementation steps are as follows:

[0038] (1) Make a positioning piece 2-1 with a round hole using aluminum alloy, and connect the positioning piece 2-1 to the magnetic medium 2-2 with a diameter of 3mm using glue to assemble a magnetic medium unit 2; make a hollow frame 1 using 316L stainless steel.

[0039] (2) Using the method shown in step (1), 15 modular magnetic media units 2 are fabricated and placed sequentially into the hollow frame 1. Then, a pad 3 is placed on each of the two sets of positioning plates 2-1 at the top. Finally, the two sets of positioning pins 4 are inserted into the positioning holes 1-1 to complete the assembly of the magnetic media box. To facilitate disassembly, 0.5mm protrusions are left on the left and right sides of the lower end of the positioning plates 2-1 to leave gaps between the stacked magnetic media.

[0040] (3) Place the magnetic media box prepared in step (2) into the sorting chamber of the periodic pulsed high gradient magnetic separator, and complete the capture and sorting process of the magnetic media on the particles under the specified operating conditions. Then drain all the liquid in the magnetic separator; maintain the magnetic field and feed liquid nitrogen into the sorting zone. After the particles captured on the magnetic media are completely frozen, take out the magnetic media box and store it in a low temperature box at -5℃.

[0041] (4) Take out the magnetic medium box from the low temperature box described in step (3), remove the positioning pin 3 and the 15 sets of magnetic medium units 2 in sequence, collect the samples obtained on the 15 sets of magnetic medium units 2 separately, and number them in order from top to bottom as n=1, n=2, n=…, n=15.

[0042] (5) Combine samples n=1 to 5 into one sample, denoted as sample A; combine samples n=6 to 10 into sample B; and combine samples n=11 to 15 into sample C. Dry, weigh, and analyze the TiO2 content of samples A, B, and C respectively. The results are shown in Table 1.

[0043] Table 1

[0044] Sample No. Weight (g) TiO2grade (%) 1# 10.34 15.77 2# 3.15 12.78 3# 2.08 10.76 Total 15.57 14.49

[0045] Compared with the indirect cooling magnetic medium box with cooling chamber provided by Chinese Patent Application No. CN119319035A, the magnetic medium box of this utility model can be directly cooled by liquid nitrogen, the cooling rate of magnetic medium capturing particles is shortened from several minutes to a few seconds, and the disassembly time of magnetic medium unit is shortened from more than 30 minutes to less than 10 minutes.

[0046] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A magnetic medium box for direct cooling that is easy to disassemble, characterized in that: It includes a hollow frame (1), several sets of magnetic media units (2) and positioning pins (3); The hollow frame (1) has a positioning block at the bottom and a positioning square hole (1-1) at the top. Each magnetic medium unit (2) includes positioning plates (2-1) on both sides and several magnetic media (2-2) evenly arranged between the positioning plates (2-1), wherein each positioning plate (2-1) has protrusions on both sides of its bottom end; Several sets of magnetic media units (2) are installed in sequence inside the hollow frame (1), and then the assembly of the entire direct cooling magnetic media box is completed by inserting positioning pins (3) into the positioning square holes (1-1). When disassembling the magnetic medium box, first remove the positioning pin (3) from the positioning square hole (1-1), and then remove the magnetic medium unit (2) in sequence.

2. The easily disassembled magnetic medium box for direct cooling according to claim 1, characterized in that: The hollow frame (1) is used to assemble several sets of magnetic media units (2). The hollow frame (1) has a six-sided hollow structure, which facilitates the disassembly of several sets of magnetic media units (2).

3. The easily disassembled magnetic medium box for direct cooling according to claim 1, characterized in that: The hollow frame (1) is made of stainless steel non-magnetic material, and the magnetic medium unit (2) is installed inside the hollow frame (1).

4. The easily disassembled magnetic medium box for direct cooling according to claim 1, characterized in that: Each positioning piece (2-1) in the magnetic medium unit (2) has protrusions on both sides of its bottom end, leaving gaps between adjacent magnetic medium units (2) for easy disassembly.

5. The easily disassembled magnetic medium box for direct cooling according to claim 1, characterized in that: The magnetic medium unit (2) has a single layer or more in the vertical direction, and can also be divided into multiple smaller magnetic medium units (2) in the horizontal direction.

Images