Magnetic substance protection device of manganese sulfate tray dryer

Abstract

The utility model relates to a magnetic substance protection device of a manganese sulfate disc dryer, and belongs to the technical field of drying equipment. The device mainly comprises an air inducing cover, a grating type iron remover, sliding grooves, sliding blocks, a screen frame and a screen, an air inlet is formed in the end of the air inducing cover, two rectangular grooves are formed in the top end of the air inducing cover, the two sliding grooves corresponding to the rectangular grooves are vertically formed in the inner wall of the air inducing cover, and the sliding blocks connected with the sliding grooves in a matched mode are installed on the two sides of the screen frame and the grating type iron remover. A screen is arranged on the screen frame, and the grating type iron remover is located on the outer side of the screen. The hidden danger that metal parts fall off and are mixed into materials due to vibration or dismounting operation errors is eradicated, and secondary pollution is eliminated from the source; the screen and the de-ironing separator are used in cooperation to form double barriers, the risk that magnetic particles are introduced into the environment is greatly reduced, the screen and the de-ironing separator can be rapidly pulled and pulled along the sliding grooves to be replaced, the disassembly and assembly time is shortened, the continuity of the production process is improved, and meanwhile the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of drying equipment technology, specifically relating to a magnetic material protection device for a manganese sulfate disc dryer. Background Technology

[0002] A disc dryer is a highly efficient continuous drying device mainly used for drying solid granular and powdery materials. It achieves rapid dehydration by ensuring full contact between the rotating heated disc and the material, utilizing hot air circulation. Manganese sulfate, as an important raw material for lithium battery cathode materials, requires extremely strict control over its magnetic content during production. In the disc dryer's production process, magnetic particles and metallic impurities from the ambient air can easily enter the drying system through the airflow system. Once mixed into the product, these impurities directly affect the crystal morphology and chemical purity, leading to a decline in battery material performance.

[0003] Traditional disc dryers often use metal fasteners (such as bolts and nuts) to install screens at the air inlet. Frequent disassembly and reassembly of the screen can cause the metal fasteners to fall off due to vibration or operational errors, resulting in secondary pollution from mixed materials and increasing the risk of equipment failure. Secondly, disassembling the fixed structure is time-consuming, leading to long equipment maintenance downtime cycles and affecting production continuity. In addition, existing technology lacks pre-purification treatment of the induced air. The screen structure alone is insufficient to intercept magnetic particles and metal impurities in the ambient air, resulting in poor demagnetization and affecting product quality. Utility Model Content

[0004] To overcome the problems of traditional disc dryers using metal fasteners to install screens at the air inlet, which are prone to detachment due to vibration or operational errors during frequent screen disassembly and assembly, leading to secondary contamination from mixed materials and increased equipment failure risk, this invention provides a sulfuric acid... The manganese disc dryer features a magnetic material protection device. Utilizing a modular installation structure of chutes and sliders, it replaces traditional bolts and nuts, eliminating the risk of metal parts falling off and mixing into materials due to vibration or improper disassembly, thus preventing secondary pollution at the source. The combined use of a screen and a magnetic separator forms a double barrier, significantly reducing the risk of magnetic particles being introduced into the environment. Furthermore, the screen and magnetic separator can be quickly pulled along the chutes for replacement, shortening downtime caused by disassembling them, improving production continuity, and reducing employee workload.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A magnetic material protection device for a manganese sulfate disc dryer mainly includes an exhaust hood, a grid-type iron remover, a chute, a slider, a screen frame, and a screen. The exhaust hood is installed at the air inlet on the side wall of the disc dryer. An air inlet is provided at the end of the exhaust hood, and two rectangular grooves are provided at the top. Two sets of chute corresponding to the rectangular grooves are vertically installed on the inner wall of the exhaust hood. Sliders that cooperate with the chute are installed on both sides of the screen frame and the grid-type iron remover. The screen frame and the grid-type iron remover are slidably installed in the chute through the sliders. A screen for intercepting large magnetic particles is provided on the screen frame, and the grid-type iron remover is located on the outside of the screen.

[0006] The grid-type iron remover includes a U-shaped frame, a connecting plate, and magnetic rods arranged at equal intervals along the U-shaped frame. The bottom end of the U-shaped frame and the connecting plate are provided with corresponding positioning holes at equal intervals. One end of the magnetic rod is inserted into the positioning hole at the bottom end of the U-shaped frame, and the other end is inserted into the positioning hole in the connecting plate. The end of the connecting plate is fixed to the top end of the U-shaped frame by screws.

[0007] The top of the air hood is hinged with a pressure block for fixing the grid-type iron remover and the screen frame, and the bottom surface of the pressure block is set as an inclined surface.

[0008] The widths of the U-shaped frame, connecting plate, and screen frame are all the same as the width of the rectangular groove.

[0009] Both the connecting plate and the top of the screen frame are equipped with handles for easy handling.

[0010] The beneficial effects of this utility model are:

[0011] This utility model adopts a modular installation structure of chute and slider to replace traditional bolts and nuts, eliminating the hidden danger of metal parts falling off and mixing into materials due to vibration or disassembly operation errors, thus eliminating secondary pollution at the source. The use of screen and iron separator together forms a double barrier, which greatly reduces the risk of magnetic particles being introduced into the environment. In addition, the screen and iron separator can be quickly pulled out and replaced along the chute, shortening the downtime caused by employees disassembling the screen and iron separator, improving the continuity of the production process, and reducing the labor intensity of employees. Attached Figure Description

[0012] Figure 1 This is the isometric drawing of this utility model.

[0013] Figure 2 This is a 3D schematic diagram of the installation status of the grid-type iron separator and screen frame.

[0014] Figure 3 This is a three-dimensional schematic diagram of the present invention.

[0015] Figure 4 This is a schematic diagram of the working state of this utility model.

[0016] Figure 5 This is a 3D schematic diagram of a grid-type iron separator.

[0017] Figure 6 This is a 3D schematic diagram of a screen frame and a screen. Detailed Implementation

[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0019] This utility model discloses a magnetic object protection device for a manganese sulfate disc dryer. The device mainly includes an exhaust hood 1, a grid-type iron separator 2, a sliding groove 3, a slider 4, a screen frame 5, and a screen 6. The exhaust hood 1 is installed at the air inlet on the side wall of the disc dryer. An air inlet 101 is provided at the end of the exhaust hood 1, and two rectangular grooves 102 are provided at the top. Two sets of sliding grooves 3 corresponding to the rectangular grooves 102 are vertically installed on the inner wall of the exhaust hood 1. Sliding sliders 4 that cooperate with and connect to the sliding grooves 3 are installed on both sides of the screen frame 5 and the grid-type iron separator 2. The screens are slidably installed in the slide groove 3 via sliders 4. The screen frame 5 is equipped with a screen 6 for intercepting large magnetic particles. The grid-type iron remover 2 is located outside the screen 6. The grid-type iron remover 2 includes a U-shaped frame 201, a connecting plate 202, and magnetic rods 203 arranged at equal intervals along the U-shaped frame 201. The bottom end of the U-shaped frame 201 and the connecting plate 202 are provided with corresponding positioning holes at equal intervals. One end of the magnetic rod 203 is inserted into the positioning hole at the bottom end of the U-shaped frame 201, and the other end is inserted into the positioning hole in the connecting plate 202. The end of the connecting plate 202 is fixed to the top end of the U-shaped frame 201 by screws.

[0020] When the coil dryer is working, ambient air enters the device through the air inlet 101 of the duct 1. It first flows through the gaps between the magnetic bars 203 of the grid-type iron separator 2. At this time, the magnetic particles and metal impurities are instantly adsorbed by the strong magnetic field on the surface of the magnetic bars 203, completing the initial interception and significantly reducing the concentration of magnetic materials in the air. The air that has been initially purified by the grid-type iron separator 2 continues to flow to the screen 6. The aperture of the screen 6 is customized according to the particle size of the manganese sulfate material, which can effectively intercept large non-magnetic impurities, while allowing the hot drying air to pass through smoothly. The screen 6 and the grid-type iron separator 2 form a dual protection of magnetic separation and screening to ensure the cleanliness of the air entering the coil dryer. When cleaning or replacing the screen 6 or magnetic rod 203 is required, operators can directly pull the screen frame 5 or the grid-type iron separator 2 upwards from the rectangular groove 102 at the top of the exhaust hood 1. After cleaning or replacement, they can push it back into the slide groove 3. This achieves modular updates of the screen frame 5 and magnetic rod 203, shortening downtime caused by disassembling the screen and iron separator, improving the continuity of the production process, and reducing the labor intensity of employees. The grid-type iron separator 2 preferentially adsorbs magnetic particles, effectively preventing magnetic materials from adhering to the surface of the screen 6 and causing blockage. The equidistant arrangement of the magnetic rods 203 can form a uniform magnetic field coverage, improving the adsorption efficiency of magnetic particles. The screen frame 5 and the iron separator 2 are fixed by a slide groove 3 and a slider 4 structure, eliminating the need for bolts, nuts, and other metal contact parts, solving the problem of metal parts easily falling off during maintenance and causing secondary pollution or mechanical failure.

[0021] The top of the exhaust hood 1 is hinged with a pressure block 8 for fixing the grid-type iron separator 2 and the screen frame 5. The bottom surface of the pressure block 8 is set as an inclined surface. After the grid-type iron separator 2 or the screen frame 5 is replaced, the operator rotates the pressure block 8 so that it contacts the top of the grid-type iron separator 2 and the screen frame 5. Since the bottom surface of the pressure block 8 is inclined, pressure is gradually applied to the top of the grid-type iron separator 2 and the screen frame 5 during the rotation, thereby fixing the grid-type iron separator 2 or the screen frame 5 on the exhaust hood 1 and preventing it from shaking or shifting during operation, thus ensuring the stability of the device. When it is necessary to disassemble the grid-type iron separator 2 or the screen frame 5, the pressure block 8 is rotated in the opposite direction to detach it from the grid-type iron separator 2 or the screen frame 5. The operation is simple and efficient.

[0022] The widths of the U-shaped frame 201, connecting plate 202, and screen frame 5 are all the same as the width of the rectangular groove 102; this allows the connecting plate 202 and screen frame 5 to fit tightly with the rectangular groove 102 and reduces gaps, thereby improving the stability and sealing of the overall structure.

[0023] Both the connecting plate 202 and the top of the screen frame 5 are equipped with handles 7 for easy handling.

[0024] Work process:

[0025] When the coil dryer is working, ambient air enters the device through the air inlet 101 of the duct 1. It first flows through the gaps between the magnetic bars 203 of the grid-type iron separator 2. At this time, the magnetic particles and metal impurities are instantly adsorbed by the strong magnetic field on the surface of the magnetic bars 203, completing the initial interception and significantly reducing the concentration of magnetic materials in the air. The air that has been initially purified by the grid-type iron separator 2 continues to flow to the screen 6. The aperture of the screen 6 is customized according to the particle size of the manganese sulfate material, which can effectively intercept large non-magnetic impurities, while allowing the hot drying air to pass through smoothly. The screen 6 and the grid-type iron separator 2 form a dual protection of magnetic separation and screening to ensure the cleanliness of the air entering the coil dryer. When cleaning or replacing the screen 6 or magnetic rod 203 is required, operators can directly pull the screen frame 5 or the grid-type iron separator 2 upwards from the rectangular groove 102 at the top of the exhaust hood 1. After cleaning or replacement, they can push it back into the slide groove 3. This achieves modular updates of the screen frame 5 and magnetic rod 203, shortening downtime caused by disassembling the screen and iron separator, improving the continuity of the production process, and reducing the labor intensity of employees. The grid-type iron separator 2 preferentially adsorbs magnetic particles, effectively preventing magnetic materials from adhering to the surface of the screen 6 and causing blockage. The equidistant arrangement of the magnetic rods 203 can form a uniform magnetic field coverage, improving the adsorption efficiency of magnetic particles. The screen frame 5 and the iron separator 2 are fixed by a slide groove 3 and a slider 4 structure, eliminating the need for bolts, nuts, and other metal contact parts, solving the problem of metal parts easily falling off during maintenance and causing secondary pollution or mechanical failure.

[0026] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A magnetic material protection device for a manganese sulfate disc dryer, characterized in that: The magnetic material protection device for a manganese sulfate disc dryer includes an exhaust hood (1), a grid-type iron remover (2), a chute (3), a slider (4), a screen frame (5), and a screen (6). The exhaust hood (1) is installed at the exhaust port on the side wall of the disc dryer. An air inlet (101) is provided at the end of the exhaust hood (1), and two rectangular grooves (102) are provided at the top. Two sets of chute (3) corresponding to the rectangular grooves (102) are vertically installed on the inner wall of the exhaust hood (1). Slider (4) that cooperates with the chute (3) are installed on both sides of the screen frame (5) and the grid-type iron remover (2). The screen frame (5) and the grid-type iron remover (2) are slidably installed in the chute (3) through the slider (4). A screen (6) for intercepting large magnetic particles is provided on the screen frame (5). The grid-type iron remover (2) is located outside the screen (6).

2. The magnetic material protection device for a manganese sulfate disc dryer as described in claim 1, characterized in that: The grid-type iron separator (2) includes a U-shaped frame (201), a connecting plate (202), and magnetic rods (203) arranged at equal intervals along the U-shaped frame (201). The bottom end of the U-shaped frame (201) and the connecting plate (202) are provided with corresponding positioning holes at equal intervals. One end of the magnetic rod (203) is inserted into the positioning hole at the bottom end of the U-shaped frame (201), and the other end is inserted into the positioning hole of the connecting plate (202). The end of the connecting plate (202) is fixed to the top end of the U-shaped frame (201) by screws.

3. A magnetic material protection device for a manganese sulfate disc dryer as described in claim 1 or 2, characterized in that: The top of the air hood (1) is hinged with a pressure block (8) for fixing the grid-type iron remover (2) and the screen frame (5), and the bottom surface of the pressure block (8) is set as an inclined surface.

4. The magnetic material protection device for a manganese sulfate disc dryer as described in claim 2, characterized in that: The widths of the U-shaped frame (201), connecting plate (202) and screen frame (5) are all the same as the width of the rectangular groove (102).

5. The magnetic material protection device for a manganese sulfate disc dryer as described in claim 4, characterized in that: The top of the connecting plate (202) and the screen frame (5) are both provided with handles (7) for easy handling.

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