Thermal cycle magnetic powder drying device

Abstract

The utility model discloses a thermal circulation magnetic powder drying device which comprises a drying outer bin, a drying inner cylinder, a raising assembly and a circulation heating assembly. The drying inner barrel is fixedly installed in the drying outer bin, the bottom of the drying inner barrel penetrates to the lower portion of the drying outer bin, a material opening is formed in the lower portion of the outer wall of the drying inner barrel, and the raising assembly is installed on a top plate of the drying outer bin and extends into the drying inner barrel; the raising assembly is used for conveying magnetic powder at the bottom end of the drying inner barrel upwards, the circulating heating assembly comprises an electric heating wire, circulating fan blades and a circulating pipe, and an annular cavity is formed in the drying outer bin. The magnetic powder in the drying inner barrel is conveyed upwards through the raising assembly, the magnetic powder can be raised circularly, the situation that the magnetic powder gathers together is avoided, the electric heating wire heats air, the air is sprayed to the raised magnetic powder through the air nozzle, the magnetic powder is heated evenly and dried sufficiently, hot air can be circulated, and heat loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to magnetic powder drying equipment, and more specifically to a thermal cycle magnetic powder drying device. Background Art

[0002] In the production of magnetic materials, a drying device must be used to dry the magnetic powder to meet the needs of the next step of production. Magnetic powder drying is to place the magnetic powder in a drying tank, set a heater to heat the air into hot air and blow it towards the magnetic powder, thereby drying the magnetic powder.

[0003] However, when drying, if the magnetic powder is simply dried through internal heating, the magnetic powder will often gather together, resulting in uneven heating of the magnetic powder and insufficient drying, which seriously affects the effect and quality of the magnetic powder drying. In addition, the heated airflow dries the magnetic powder and then discharges it directly into the air. It is directly discharged into the atmosphere after only one heat energy conversion, resulting in a large amount of heat loss and serious energy waste. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model aims to provide a thermal cycle magnetic powder drying device.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] The thermal cycle magnetic powder drying device comprises a drying outer bin, a drying inner cylinder, a lifting component and a circulating heating component.

[0007] The drying inner cylinder is fixedly installed inside the drying outer bin, the bottom of the drying inner cylinder penetrates to the bottom of the drying outer bin, a material port is provided below the outer wall of the drying inner cylinder, the lifting assembly is installed on the top plate of the drying outer bin and extends to the inside of the drying inner cylinder, the lifting assembly is used to transport the magnetic powder at the bottom end of the drying inner cylinder upward, the circulating heating assembly includes an electric heating wire, a circulating fan blade and a circulating pipe, an annular cavity is provided on the drying outer bin, the electric heating wire is spirally shaped and installed in the annular cavity, and the circulating pipe is connected and installed between the annular cavity and the drying outer bin.

[0008] As a further description of the above technical solution: a feed pipe is arranged through the inner wall of the drying inner cylinder, one end of the feed pipe passes through and extends to the outside of the drying outer bin, and the feed pipe and the bottom of the drying inner cylinder are equipped with corresponding sealing devices to keep them in a closed state during drying.

[0009] As a further description of the above technical solution: the lifting assembly includes a motor, a rotating shaft and a spiral feed sheet. The motor is fixedly installed on the top of the drying outer bin, the rotating shaft is located at the axis of the drying inner cylinder and the top end is connected to the output end of the motor, and the spiral feed sheet is fixedly sleeved on the outer wall of the rotating shaft and is located inside the drying inner cylinder.

[0010] As a further description of the above technical solution: evenly distributed air nozzles are embedded and installed on the inner wall of the drying outer bin, and one end of the air nozzle penetrates into the annular cavity and is located above the electric heating wire.

[0011] As a further description of the above technical solution: the circulating fan blades are fixedly sleeved on the outer wall of the rotating shaft. When the circulating fan blades rotate with the rotating shaft, the air in the drying outer bin is passed into the circulation pipe and then into the annular cavity, and then passed into the drying outer bin through the air nozzle to realize circulation.

[0012] As a further description of the above technical solution: conical plates A are fixedly arranged on the inner wall of the drying outer bin and are spaced along the length direction of the drying outer bin; conical plates B are fixedly arranged on the outer wall of the drying inner cylinder and are spaced along the length direction of the drying inner cylinder; the conical plates A and B are staggered.

[0013] As a further description of the above technical solution: an annular sieve plate located above the drying inner cylinder is fixedly provided inside the drying outer bin, a baffle is fixedly provided on the inner ring of the annular sieve plate, and the rotating shaft passes through the baffle and is rotatably connected to the baffle through the bearing.

[0014] As a further description of the above technical solution: an anti-blocking brush is fixedly sleeved on the outer wall of the rotating shaft, and the anti-blocking brush contacts the lower surface of the annular screen plate.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. This scheme uses a motor to drive the rotating shaft to make the spiral feeding sheet transport the magnetic powder upward. The magnetic powder is thrown into the gap between the drying inner cylinder and the drying outer bin, and moves downward along the conical plate A and the conical plate B in turn. After the magnetic powder moves downward, it will enter the interior of the drying inner cylinder again through the material port. The magnetic powder can be raised cyclically to avoid the situation where the magnetic powder gathers together.

[0017] 2. In this scheme, when the magnetic powder is lifted up, the motor drives the rotating shaft to rotate the circulating fan blades to suck the air in the drying outer bin into the circulating pipe and pass it into the annular cavity, where it is heated by the electric heating wire and sprayed to the lifted magnetic powder by the air nozzle, so that the magnetic powder is heated evenly and dried fully;

[0018] 3. In this scheme, the hot air dried by the magnetic powder enters the circulation pipe again under the suction of the circulating fan blades to realize the circulation of the dried hot air and reduce the heat loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model as a whole;

[0021] Figure 3 It is a schematic diagram of the overall planar structure of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1. Drying outer chamber; 2. Drying inner cylinder; 3. Material inlet; 4. Electric heating wire; 5. Circulating fan blades; 6. Circulating pipe; 7. Annular cavity; 8. Feed pipe; 9. Motor; 10. Rotating shaft; 11. Spiral feed sheet; 12. Air jet nozzle; 13. Conical plate A; 14. Conical plate B; 15. Annular screen plate; 16. Baffle; 17. Anti-blocking brush. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0025] See also Figures 1 to 3 In the utility model, a heat cycle magnetic powder drying device comprises a drying outer bin 1, a drying inner cylinder 2, a lifting component and a circulating heating component.

[0026] The drying inner cylinder 2 is fixedly installed inside the drying outer bin 1, and the bottom of the drying inner cylinder 2 penetrates to the bottom of the drying outer bin 1. A material port 3 is provided below the outer wall of the drying inner cylinder 2. The lifting assembly is installed on the top plate of the drying outer bin 1 and extends to the inside of the drying inner cylinder 2. The lifting assembly is used to transport the magnetic powder at the bottom end of the drying inner cylinder 2 upward. The circulating heating assembly includes an electric heating wire 4, a circulating fan blade 5 and a circulating pipe 6. An annular cavity 7 is provided on the drying outer bin 1. The electric heating wire 4 is spirally shaped and installed in the annular cavity 7. The circulating pipe 6 is installed between the annular cavity 7 and the drying outer bin 1.

[0027] In this embodiment, preferably, a feed pipe 8 is provided through the inner wall of the drying inner cylinder 2, one end of the feed pipe 8 passes through and extends to the outside of the drying outer bin 1, and the feed pipe 8 and the bottom of the drying inner cylinder 2 are equipped with corresponding sealing devices so that they are in a closed state during drying.

[0028] The sealing device for sealing the feed pipe 8 and the drying inner cylinder 2 can be an existing product. When adding magnetic powder, the bottom of the drying inner cylinder 2 is closed and the feed pipe 8 is opened. During the drying process, the bottom of the drying inner cylinder 2 is closed, and the feed pipe 8 is closed, opened or partially opened according to the actual situation on the premise of meeting the internal pressure and air circulation. When discharging, the bottom of the drying inner cylinder 2 and the feed pipe 8 are opened at the same time.

[0029] In this embodiment, preferably, the lifting assembly includes a motor 9, a rotating shaft 10 and a spiral feed sheet 11. The motor 9 is fixedly installed on the top of the drying outer bin 1, the rotating shaft 10 is located at the axis of the drying inner cylinder 2 and the top end is connected to the output end of the motor 9, and the spiral feed sheet 11 is fixedly sleeved on the outer wall of the rotating shaft 10 and is located inside the drying inner cylinder 2.

[0030] In this embodiment, preferably, evenly distributed air nozzles 12 are embedded and installed on the inner wall of the drying outer chamber 1 , and one end of the air nozzle 12 penetrates into the annular cavity 7 and is located above the electric heating wire 4 .

[0031] In this embodiment, preferably, the circulating fan blades 5 are fixedly sleeved on the outer wall of the rotating shaft 10. When the circulating fan blades 5 rotate with the rotating shaft 10, the air in the drying outer chamber 1 is passed into the circulation pipe 6 and then into the annular cavity, and then passed into the drying outer chamber 1 through the air nozzle 12 to realize circulation.

[0032] In this embodiment, preferably, conical plates A13 spaced along the length direction of the drying outer bin 1 are fixedly provided on the inner wall of the drying outer bin 1, and conical plates B14 spaced along the length direction of the drying inner bin 2 are fixedly provided on the outer wall of the drying inner bin 2, and the conical plates A13 and B14 are staggered.

[0033] In this embodiment, preferably, an annular sieve plate 15 located above the drying inner cylinder 2 is fixedly provided inside the drying outer chamber 1, a baffle 16 is fixedly provided on the inner ring of the annular sieve plate 15, the rotating shaft 10 passes through the baffle 16 and is rotatably connected to the baffle 16 through the bearing, and the annular sieve plate 15 realizes air circulation and avoids sucking out the magnetic powder.

[0034] In this embodiment, preferably, an anti-blocking brush 17 is fixedly sleeved on the outer wall of the rotating shaft 10, and the anti-blocking brush 17 contacts the lower surface of the annular sieve plate 15; the rotating shaft 10 drives the anti-blocking brush 17 to clean the annular sieve plate 15 to prevent the annular sieve plate 15 from being blocked and affecting the air circulation.

[0035] The working principle and use process of this utility model:

[0036] The magnetic powder to be dried is added into the drying inner cylinder 2 through the feed pipe 8, the electric heating wire 4 and the motor 9 are turned on, the motor 9 drives the rotating shaft 10 to rotate the spiral feed sheet 11, and the spiral feed sheet 11 transports the magnetic powder upward inside the drying inner cylinder 2. When passing through the top of the drying inner cylinder 2, the magnetic powder can be thrown into the gap between the drying inner cylinder 2 and the drying outer bin 1. Under the action of gravity, the magnetic powder moves downward along the conical plate A13 and the conical plate B14 in turn. After moving downward, the magnetic powder will enter the interior of the drying inner cylinder 2 again through the material port 3. The magnetic powder can be circulated and lifted up to avoid the situation where the magnetic powder gathers together.

[0037] In the process of lifting the magnetic powder, the rotating shaft 10 drives the circulating fan blades 5 to rotate and suck the air in the drying outer bin 1 into the circulating pipe 6. The air is heated by the electric heating wire 4 and ejected by the air nozzle 12 in the annular cavity. The added air is blown to the magnetic powder moving downward through the conical plate A13 and the conical plate B14 to dry the magnetic powder. Since the magnetic powder keeps falling, the magnetic powder is heated evenly and dried fully.

[0038] The hot air dried by the magnetic powder enters the circulation pipe 6 again under the suction of the circulation fan blades 5, so as to realize the circulation of the dried hot air and reduce the heat loss.

[0039] The electronic components and modules used in the content of this utility model can all be parts that are commonly used in the market and can realize the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs. The electronic components and modules are all connected to an external power supply and a control switch for use. Their specific circuit connection methods and methods of use are commonly used public technologies and will not be elaborated on here.

[0040] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A thermal cycle magnetic powder drying device, comprising a drying outer chamber (1), characterized in that: Also includes: A drying inner cylinder (2), the drying inner cylinder (2) being fixedly mounted inside the drying outer bin (1), the bottom of the drying inner cylinder (2) passing through to the bottom of the drying outer bin (1), and a material port (3) being provided below the outer wall of the drying inner cylinder (2); A lifting assembly, the lifting assembly being mounted on a top plate of the drying outer bin (1) and extending to the interior of the drying inner cylinder (2), the lifting assembly being used to transport the magnetic powder at the bottom end of the drying inner cylinder (2) upwards; A circulation heating component, the circulation heating component comprises an electric heating wire (4), a circulation fan blade (5) and a circulation pipe (6); an annular cavity (7) is provided on the drying outer chamber (1); the electric heating wire (4) is spirally shaped and installed in the annular cavity (7); the circulation pipe (6) is installed in communication between the annular cavity (7) and the drying outer chamber (1).

2. The thermal cycle magnetic powder drying device according to claim 1, characterized in that: A feed pipe (8) is provided through the inner wall of the drying inner cylinder (2), one end of the feed pipe (8) passes through and extends to the outside of the drying outer bin (1), and the feed pipe (8) and the bottom of the drying inner cylinder (2) are equipped with corresponding sealing devices so that they are in a closed state during drying.

3. The thermal cycle magnetic powder drying device according to claim 1, characterized in that: The lifting assembly comprises a motor (9), a rotating shaft (10) and a spiral conveying plate (11); the motor (9) is fixedly mounted on the top of the drying outer bin (1); the rotating shaft (10) is located at the axis of the drying inner cylinder (2) and the top end is connected to the output end of the motor (9); the spiral conveying plate (11) is fixedly sleeved on the outer wall of the rotating shaft (10) and is located inside the drying inner cylinder (2).

4. The thermal cycle magnetic powder drying device according to claim 3, characterized in that: The inner wall of the drying outer bin (1) is embedded with uniformly distributed air nozzles (12), one end of which penetrates into the annular cavity (7) and is located above the electric heating wire (4).

5. The thermal cycle magnetic powder drying device according to claim 4, characterized in that: The circulation blades (5) are fixedly sleeved on the outer wall of the rotating shaft (10). When the circulation blades (5) rotate along with the rotating shaft (10), the air in the drying outer bin (1) is passed into the circulation pipe (6) and then into the annular cavity, and then passed into the drying outer bin (1) through the air nozzle (12) to realize circulation.

6. The thermal cycle magnetic powder drying device according to claim 1, characterized in that: Conical plates A (13) are fixedly provided on the inner wall of the drying outer bin (1) and are spaced apart along the length direction of the drying outer bin (1), and conical plates B (14) are fixedly provided on the outer wall of the drying inner cylinder (2) and are spaced apart along the length direction of the drying inner cylinder (2), and the conical plates A (13) and the conical plates B (14) are arranged in an alternating manner.

7. The thermal cycle magnetic powder drying device according to claim 3, characterized in that: An annular sieve plate (15) located above the drying inner cylinder (2) is fixedly arranged inside the drying outer bin (1), a baffle plate (16) is fixedly arranged on the inner ring of the annular sieve plate (15), and the rotating shaft (10) passes through the baffle plate (16) and is rotatably connected to the baffle plate (16) via a bearing.

8. The thermal cycle magnetic powder drying device according to claim 7, characterized in that: An anti-blocking brush (17) is fixedly sleeved on the outer wall of the rotating shaft (10), and the anti-blocking brush (17) contacts the lower surface of the annular screen plate (15).

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