Anti-sticking magnetic material drying apparatus

Abstract

A magnetic material drying device for preventing adhesion is disclosed, relating to the field of drying equipment technology, to solve the problems of adhesion and uneven drying during the drying process in existing technologies. It includes a base and a drying chamber disposed on the base. The base has a feeding chamber and a feeding channel corresponding to the drying chamber. A hot air duct is connected to the base and communicates with the bottom of the feeding chamber. The drying chamber includes a connecting seat, multiple drying trays, a stirring mechanism, and a cover. A drying box is connected between the cover and the drying trays. Multiple air outlets are evenly connected to the cover, and one-way valves are connected to the air outlets. The beneficial effects are: hot air diffuses upward along the same axis in the feeding chamber, while the stirring blades corresponding to each drying tray simultaneously stir the magnetic material, ensuring that the magnetic material can fully contact the hot air and avoiding uneven drying and particle agglomeration.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically to a magnetic material drying device that prevents adhesion. Background Technology

[0002] Drying is a crucial step in the production and processing of magnetic materials. If the moisture in the magnetic materials is not sufficiently removed, it can lead to problems such as cracking, deformation, and uneven density during subsequent sintering. In severe cases, it can even result in the scrapping of the product. Therefore, drying directly affects the quality of subsequent processing of magnetic materials.

[0003] Currently, the main drying equipment for magnetic materials in the industry is the oven-type dryer. Oven-type dryers dry magnetic materials by introducing hot air into a closed cavity and utilizing heat conduction and convection. However, in order to increase the drying capacity, traditional oven-type dryers often use multiple trays to place magnetic materials inside the oven. However, the multi-layer structure can easily lead to uneven distribution of hot air in the cavity. The magnetic materials on the lower trays are blocked by the magnetic materials on the upper trays, resulting in low heat exchange efficiency and uneven drying. Some magnetic materials may stick to the tray walls or adjacent magnetic materials in the later stages of drying due to excessive local moisture residue. This not only affects the appearance of the magnetic materials but also increases the difficulty of subsequent separation processes and may even cause damage to the magnetic materials. In addition, traditional multi-layer trays are mostly fixed installation structures, requiring the oven door to be opened and the magnetic materials to be handled inside the cavity, which is labor-intensive.

[0004] In summary, existing magnetic materials are in a static state during the drying process, which can easily lead to uneven drying and adhesion.

[0005] Therefore, this invention proposes an anti-adhesion magnetic material drying device to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide a magnetic material drying device that prevents adhesion, thereby solving the problems of adhesion and uneven drying that occur during the drying process in the prior art.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A magnetic material drying device for preventing adhesion includes a base and a drying chamber disposed on the base. The base has a discharge chamber and a discharge channel corresponding to the drying chamber, and a blocking valve is provided between the discharge chamber and the discharge channel. A hot air duct is connected to the base, and an air distribution plate is connected to the outlet of the hot air duct. Multiple air distribution holes are evenly distributed at the bottom of the air distribution plate, and these holes communicate with the bottom of the discharge chamber. The drying chamber includes a connecting seat, multiple drying trays, a stirring mechanism, and a cover. The multiple drying trays are longitudinally connected along their height, and each drying tray has multiple discharge holes. The diameter of the material discharge holes on the drying tray decreases from top to bottom. The connecting seat is connected between the drying tray and the equipment base. The cover is connected to the upper end of the drying tray. A drying chamber is connected between the cover and the drying tray. Multiple air outlets are evenly connected on the cover, and one-way valves are connected to the air outlets. The stirring mechanism includes a first drive motor, a stirring shaft, and stirring blades connected to the outside of the stirring shaft. The stirring blades are respectively arranged corresponding to multiple drying trays and the material discharge chamber. The drive shaft of the first drive motor is coaxially connected to the stirring shaft. The first drive motor is fixedly connected to the cover.

[0009] Furthermore, the drying chamber includes a chamber body, with an air inlet pipe connected to the bottom of the chamber body and an air outlet pipe connected to the top of the chamber body, and a desiccant is disposed inside the chamber body.

[0010] Furthermore, the connecting seat is longitudinally connected with multiple support slide rails, and the cover is connected to the support slide rails on both sides. The first sliding ears are slidably connected to the support slide rails, and each of the first sliding ears is threadedly connected to the support slide rails.

[0011] Furthermore, the cover is provided with a retaining plate, which is slidably connected to the support slide rail via a second sliding lug. Each of the second sliding lugs is threaded with a positioning bolt corresponding to the support slide rail, and multiple elastic retaining components are connected to the bottom of the retaining plate.

[0012] Furthermore, a flexible scraper is connected to the end of the stirring blade away from the stirring shaft. The flexible scraper is made of silicone rubber and is in contact with the inner wall of the drying tray. The bottom of the stirring blade is toothed.

[0013] Furthermore, the feeding chamber is conical and coaxial with the drying tray. The lower end of the feeding chamber is provided with the feeding channel, and the feeding channel has an outlet corresponding to the side wall of the equipment base. The bottom of the feeding channel is inclined.

[0014] Furthermore, the blocking valve includes a blocking plate, which is slidably connected to the equipment base. A rack is fixedly connected to the side wall of the blocking plate, and the rack meshes with a gear. A second drive motor drives the gear to rotate. Both the gear and the second drive motor are located inside the equipment base.

[0015] In summary, compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model can evenly deliver hot air to the bottom of the conical feeding chamber through the cooperation of hot air pipe, air distribution plate and air distribution hole. The hot air diffuses upward along the same axis of the feeding chamber and can penetrate each layer of drying trays in sequence, ensuring that the magnetic material in each layer of drying trays can fully contact the hot air. At the same time, the first drive motor continuously drives the stirring shaft to rotate, and the stirring blades corresponding to each layer of drying trays simultaneously stir the magnetic material. The magnetic material tumbles continuously in the tray, avoiding uneven drying of the magnetic material and reducing particle agglomeration.

[0017] 2. The bottom of the stirring blade of this utility model is toothed, and the shearing action can effectively break up agglomerated particles. Combined with the impact of hot air flow, it further prevents the magnetic material from agglomerating. At the same time, the flexible scraper made of silicone rubber at the end of the blade is attached to the inner wall of the drying tray and scrapes off the magnetic material attached to the tray wall during rotation to prevent adhesion.

[0018] 3. The material blocking valve of this utility model realizes the automatic opening and closing of the material blocking plate through the cooperation of the second drive motor, gear and rack, eliminating the need for manual switching. This not only reduces labor intensity but also allows for precise control of the material feeding timing, preventing the magnetic material from falling prematurely and causing insufficient drying.

[0019] 4. The desiccant in the drying oven of this utility model can adsorb the moisture in the drying chamber, reduce the humidity in the chamber, and prevent the secondary moisture absorption caused by the condensation of moisture on the surface of the magnetic material. At the same time, the one-way valve of the air outlet of the cover can quickly discharge the moisture and prevent the moisture from circulating in the chamber, so as to quickly dry the magnetic material.

[0020] 5. The supporting slide rail on the connecting seat of this utility model, together with the first sliding ear and the second sliding ear, facilitates the adjustment of the cover height. The clamping plate forms a stable limit on the drying tray through the elastic clamping component, which can prevent the tray from shaking during the drying process, adapt to the installation requirements of drying trays with different layers, and improve the versatility of the equipment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 This is the front view of the present invention;

[0023] Figure 3 This is a partial cross-sectional view of the main view of this utility model;

[0024] Figure 4 This is a top view of the present invention;

[0025] Figure 5 This is a partial cross-sectional schematic diagram of the top view of this utility model;

[0026] In the diagram: 1. Equipment base; 2. Feeding chamber; 3. Feeding channel; 4. Discharge port; 5. Blocking plate; 6. Rack; 7. Gear; 8. Second drive motor; 9. Hot air duct; 10. Air distribution hole; 11. Connecting seat; 12. Drying tray; 13. Cover; 14. Discharge hole; 15. Box body; 16. Air inlet pipe; 17. Air outlet pipe; 18. Desiccant; 19. Air outlet; 20. One-way valve; 21. Support slide rail; 22. First sliding ear; 23. Pressing plate; 24. Second sliding ear; 25. Elastic pressing assembly; 26. First drive motor; 27. Stirring shaft; 28. Stirring blade; 29. ​​Flexible scraper. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In this application, the terms "upper," "inner," "outer," "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0029] like Figure 1-5 As shown, a magnetic material drying device for preventing adhesion includes a base 1 and a drying chamber disposed on the base 1. The base 1 is provided with a feeding chamber 2 and a feeding channel 3 corresponding to the drying chamber. A blocking valve is provided between the feeding chamber 2 and the feeding channel 3. The base 1 is connected to a hot air pipe 9. The air outlet of the hot air pipe 9 is connected to an air distribution plate. Multiple air distribution holes 10 are evenly opened at the bottom of the air distribution plate. The air distribution holes 10 are connected to the bottom of the feeding chamber 2.

[0030] Furthermore, the drying chamber includes a connecting seat 11, multiple drying trays 12, a stirring mechanism, and a cover 13. The multiple drying trays 12 are connected longitudinally along the height direction, and each drying tray 12 has multiple material discharge holes 14. The diameter of the material discharge holes 14 on the drying tray 12 decreases from top to bottom. The connecting seat 11 connects the drying tray 12 to the equipment base 1. The cover 13 is connected to the upper end of the drying tray 12. A drying chamber is connected between the cover 13 and the drying tray 12. The drying chamber includes a chamber body 15. The bottom of the chamber body 15 is connected to an air inlet pipe 16, and the top of the chamber body 15 is connected to an air outlet pipe 17. A desiccant 18 is placed inside the chamber body 15. Multiple air outlets 19 are evenly connected to the cover 13, and a one-way valve 20 is connected to each air outlet 19.

[0031] Furthermore, multiple support slide rails 21 are longitudinally connected to the connecting seat 11. First sliding ears 22 are connected to both sides of the cover 13 at positions corresponding to the support slide rails 21. The first sliding ears 22 are slidably connected to the support slide rails 21, and each first sliding ear 22 is threadedly connected to a positioning bolt corresponding to the support slide rail 21. A pressing plate 23 is provided on the cover 13. The pressing plate 23 is slidably connected to the support slide rails 21 via second sliding ears 24. Each second sliding ear 24 is threadedly connected to a positioning bolt corresponding to the support slide rail 21. Multiple elastic pressing components 25 are connected to the bottom of the pressing plate 23.

[0032] Furthermore, the stirring mechanism includes a first drive motor 26, a stirring shaft 27, and stirring blades 28 connected to the outside of the stirring shaft 27. The stirring blades 28 are respectively arranged corresponding to multiple drying trays 12 and the feeding chamber 2. The drive shaft of the first drive motor 26 is coaxially connected to the stirring shaft 27, and the first drive motor 26 is fixedly connected to the cover 13. A flexible scraper 29 is connected to the end of the stirring blade 28 away from the stirring shaft 27. The flexible scraper 29 is made of silicone rubber and fits against the inner side wall of the drying tray 12. The bottom of the stirring blade 28 is toothed.

[0033] Furthermore, the feeding chamber 2 is conical and coaxially arranged with the drying tray 12. A feeding channel 3 is provided at the lower end of the feeding chamber 2, and a discharge port 4 is opened on the side wall of the equipment base 1 corresponding to the feeding channel 3. The bottom of the feeding channel 3 is inclined. The blocking valve includes a blocking plate 5, which is slidably connected to the equipment base 1. A rack 6 is fixedly connected to the side wall of the blocking plate 5. The rack 6 meshes with a gear 7. The second drive motor 8 drives the gear 7 to rotate. Both the gear 7 and the second drive motor 8 are located inside the equipment base 1.

[0034] The working process of this utility model is as follows:

[0035] First, loosen the positioning bolts on the first sliding ears 22 on both sides of the cover 13. Slide the cover 13 upward along the support slide rail 21 on the connecting seat 11. Evenly put the magnetic material particles to be dried into the uppermost drying tray 12. Then replace with a new drying box. Slide the cover 13 to the upper end of the drying tray 12. After installation, tighten the positioning bolts to fix the cover 13. Then loosen the positioning bolts on the second sliding ears 24 on the abutment plate 23. Slide the abutment plate 23 to the position corresponding to the uppermost drying tray 12, so that the elastic abutment component 25 at the bottom of the abutment plate 23 is in contact with the upper surface of the uppermost drying tray 12. Tighten the positioning bolts to fix the abutment plate 23. Through the elastic force of the elastic abutment component 25, a stable limit is formed on the drying tray 12 to prevent the tray from shaking during the drying process and ensure the sealing between the cover 13 and the drying tray 12.

[0036] Then the second drive motor 8 is started, which drives the gear 7 to rotate. The gear 7 drives the meshing rack 6 to move. The rack 6 drives the blocking plate 5 to slide along the equipment base 1, so that the blocking plate 5 completely blocks the connection between the feeding chamber 2 and the feeding channel 3, ensuring that the feeding chamber 2 is in a closed state in the initial state, and can temporarily store the dried magnetic material.

[0037] Then, the hot air supply system of the hot air duct 9 is activated. The hot air is delivered to the air distribution plate through the hot air duct 9. Multiple air distribution holes 10 evenly opened at the bottom of the air distribution plate evenly distribute the hot air, so that the hot air enters the bottom of the feeding chamber 2 vertically upward. Since the feeding chamber 2 is conical and coaxial with the drying tray 12, the hot air diffuses upward along the conical side wall of the feeding chamber 2 and gradually enters each layer of drying tray 12: the hot air first enters the interior of the tray through the discharge hole 14 of the bottom drying tray 12, and then passes upward through the discharge holes 14 of the upper drying tray 12 in sequence. The diameter of the discharge holes 14 decreases from top to bottom, and the diameter of the upper discharge holes 14 is larger, which can ensure that more hot air enters the upper tray, ensuring a balanced supply of hot air to each layer of drying tray and achieving full coverage of the magnetic material in each layer of drying tray 12.

[0038] Then, the first drive motor 26 is started, which drives the stirring shaft 27 to rotate. The stirring shaft 27 drives the stirring blades 28 connected to the outside to rotate synchronously. The stirring blades 28 corresponding to each drying tray 12 and the feeding chamber 2 rotate with the stirring shaft 27, thereby breaking up the magnetic material particles and avoiding initial accumulation. The bottom of the stirring blades 28 is toothed, which can further refine the magnetic material particles and reduce particle agglomeration. At the same time, the flexible scraper 29 made of silicone rubber at the end of the blade is attached to the inner wall of the drying tray 12 and scrapes off the magnetic material attached to the tray wall during rotation to prevent adhesion. The magnetic material rolls continuously in the tray, avoiding local overheating or uneven drying when the magnetic material is stationary.

[0039] The moisture evaporated from the magnetic material then flows upward with the hot air. The moisture enters the interior of the chamber 15 through the air inlet pipe 16 at the bottom of the chamber 15 and comes into full contact with the desiccant 18. The desiccant 18 absorbs the moisture in the air, thus drying the moisture. The dried airflow is then discharged through the air outlet pipe 17 at the top of the chamber 15 and then through the one-way valve 20 on the cover 13, reducing the humidity inside the drying chamber, improving the drying efficiency, and preventing the magnetic material from absorbing moisture again due to the circulation of moisture inside the chamber.

[0040] Then, under the stirring of the stirring blades 28 and the driving of the hot air, the magnetic material particles that meet the drying progress enter the lower drying tray 12 through the discharge hole 14 of the upper drying tray 12. The discharge hole 14 of the lower drying tray 12 has a smaller diameter, and the magnetic material stays in the lower tray for a longer time. The lower tray is also closer to the air distribution plate, and the hot air temperature is higher. The magnetic material can be dried by secondary hot air in the lower tray to further remove residual moisture. At the same time, the stirring blades 28 corresponding to the lower tray continue to stir the magnetic material to ensure that the magnetic material remains dispersed during the secondary drying process.

[0041] Then the magnetic material is gradually transferred from the upper tray to the lower tray. Finally, after all the magnetic materials have been dried in multiple layers, they fall into the feeding chamber 2 for temporary storage. The conical structure of the feeding chamber 2 can guide the magnetic materials to converge towards the center, which is convenient for subsequent discharge.

[0042] Once the drying process reaches the preset time, the magnetic material discharge stage begins. The second drive motor 8 is then activated, driving the gear 7 to rotate in the opposite direction. The gear 7 drives the rack 6 to move in the opposite direction, and the rack 6 pulls the blocking plate 5 to slide along the equipment base 1, gradually opening the connection between the discharge chamber 2 and the discharge channel 3. The dried magnetic material temporarily stored in the discharge chamber 2 enters the discharge channel 3 under its own gravity. The bottom of the discharge channel 3 is inclined, and the magnetic material automatically slides along the inclined channel towards the discharge port 4 on the side wall of the equipment base 1, finally being discharged from the discharge port 4 outside the equipment, completing the entire drying process.

Claims

1. A magnetic material drying device for preventing adhesion, comprising a device base (1) and a drying chamber disposed on the device base (1), characterized in that, The equipment base (1) is provided with a feeding chamber (2) and a feeding channel (3) corresponding to the drying chamber. A blocking valve is provided between the feeding chamber (2) and the feeding channel (3). The equipment base (1) is connected to a hot air pipe (9). The air outlet end of the hot air pipe (9) is connected to an air distribution plate. Multiple air distribution holes (10) are evenly opened at the bottom of the air distribution plate. The air distribution holes (10) are connected to the bottom of the feeding chamber (2). The drying chamber includes a connecting seat (11), multiple drying trays (12), a stirring mechanism, and a cover (13). The multiple drying trays (12) are connected longitudinally along the height direction. Each drying tray (12) has multiple material dropping holes (14). The diameter of the material dropping holes (14) on the drying tray (12) decreases from top to bottom. The connecting seat (11) is connected between the drying tray (12) and the equipment base (1). The cover (13) is connected to the upper end of the drying tray (12). A drying box is connected between the cover (13) and the drying tray (12). Multiple air outlets (19) are evenly connected on the cover (13). A one-way valve (20) is connected to each air outlet (19). The stirring mechanism includes a first drive motor (26), a stirring shaft (27), and stirring blades (28) connected to the outside of the stirring shaft (27). The stirring blades (28) are respectively arranged corresponding to a plurality of drying trays (12) and feeding chambers (2). The drive shaft of the first drive motor (26) is coaxially connected to the stirring shaft (27), and the first drive motor (26) is fixedly connected to the cover (13).

2. The anti-adhesion magnetic material drying equipment according to claim 1, characterized in that, The drying chamber includes a chamber body (15), with an air inlet pipe (16) connected to the bottom of the chamber body (15) and an air outlet pipe (17) connected to the top of the chamber body (15). A desiccant (18) is provided inside the chamber body (15).

3. The anti-adhesion magnetic material drying equipment according to claim 1, characterized in that, The connecting seat (11) is longitudinally connected with multiple support slide rails (21). The cover (13) is connected with first sliding ears (22) on both sides corresponding to the support slide rails (21). The first sliding ears (22) are slidably connected to the support slide rails (21). The first sliding ears (22) are threadedly connected to the support slide rails (21) respectively.

4. The anti-adhesion magnetic material drying equipment according to claim 3, characterized in that, The cover (13) is provided with a pressing plate (23), which is slidably connected to the support slide rail (21) through a second sliding ear (24). The second sliding ear (24) is threaded with a positioning bolt corresponding to the support slide rail (21). The bottom of the pressing plate (23) is connected with a plurality of elastic pressing components (25).

5. The anti-adhesion magnetic material drying equipment according to claim 1, characterized in that, The stirring blade (28) is connected to a flexible scraper (29) at one end away from the stirring shaft (27). The flexible scraper (29) is made of silicone rubber and is attached to the inner wall of the drying tray (12). The bottom of the stirring blade (28) is toothed.

6. The anti-adhesion magnetic material drying equipment according to claim 1, characterized in that, The feeding chamber (2) is cone-shaped and coaxial with the drying tray (12). The feeding channel (3) is provided at the lower end of the feeding chamber (2). The feeding channel (3) has an outlet (4) on the side wall of the equipment base (1). The bottom of the feeding channel (3) is inclined.

7. The anti-adhesion magnetic material drying equipment according to claim 6, characterized in that, The blocking valve includes a blocking plate (5), which is slidably connected to the equipment base (1). A rack (6) is fixedly connected to the side wall of the blocking plate (5), and the rack (6) meshes with a gear (7). A second drive motor (8) drives the gear (7) to rotate. Both the gear (7) and the second drive motor (8) are located inside the equipment base (1).

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