Samarium-iron-based magnetic powder drying device
By introducing a continuous feeding mechanism and an impact dispersing component into the samarium iron-based magnetic powder drying device, the problem of magnetic powder agglomeration in traditional drying methods has been solved, and a highly efficient and automated magnetic powder drying process has been achieved.
Patent Information
- Application Number
- CN202520668138.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-04-10
AI Technical Summary
Traditional hot air drying methods cause samarium iron-based magnetic powder to easily clump together during the drying process, resulting in slow and incomplete drying and insufficient contact with hot air.
A samarium iron-based magnetic powder drying device was designed, which includes a continuous feeding mechanism and an impact dispersing component. The device uses a servo motor to drive a screw feeder to achieve quantitative feeding, and a rotary motor drives an impact paddle to physically impact and disperse the magnetic powder. At the same time, hot air moves from bottom to top to fully contact the magnetic powder, and is collected centrally by a cyclone collector and a bag dust collector.
It achieves full contact between magnetic powder and hot air, improves drying efficiency, avoids agglomeration, and has a simple structure and high degree of automation, making it suitable for continuous drying operations.
Smart Images
Figure CN223710174U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of magnetic powder drying, specifically to a samarium iron-based magnetic powder drying device. BACKGROUND
[0002] Samarium iron-based rare earth permanent magnet material was discovered in the 1980s of the nineteenth century, and has been developed for forty years. At present, the price of rare earth on the international market is rising, and with the rapid development of China's new energy vehicle industry, the demand for rare earth permanent magnet materials is further expanded, and it is urgent to develop low rare earth content, high magnetic energy product permanent magnet. Samarium iron-based permanent magnet material has the lowest content of rare earth elements, low cost, high anisotropy field, high saturation magnetization, high theoretical magnetic energy product, and its Curie temperature can reach more than 500 DEG C, which can be used in high temperature magnetic material field. In the processing of samarium iron-based magnetic powder, the magnetic powder needs to be dried, and the traditional drying method mainly uses hot air to contact with the magnetic powder particles for drying. However, due to the powder shape of the magnetic powder, the dehydrated wet magnetic powder is easily stacked and extruded during the drying process, which is easy to produce clumps. The hot air in the traditional hot air drying equipment cannot fully contact with the magnetic powder particles, resulting in slow drying speed and incomplete drying. In view of the above problems, the present case is produced after in-depth research. CONTENT OF THE UTILITY MODEL
[0003] In view of the deficiencies of the prior art, the utility model provides a samarium iron-based magnetic powder drying device, which solves the problems raised in the background art.
[0004] To achieve the above purpose, the utility model realizes the following technical scheme: a samarium iron-based magnetic powder drying device, comprising a drying cylinder, a hot air inlet component is arranged at the bottom of the drying cylinder, one end of the hot air inlet component is communicated with a heater, one end of the heater is communicated with the outlet end of a blower, a continuous feeding mechanism is arranged at the side of the drying cylinder, an impact scattering component is arranged at the outlet end of the continuous feeding mechanism, the top of the drying cylinder is connected with a cyclone collector through an air extraction pipeline, the outlet end of the cyclone collector is connected with a bag dust collector, and the exhaust end of the bag dust collector is connected with the air inlet end of an air induction fan.
[0005] The continuous feeding mechanism comprises a feeding hopper, a feeding pipe, a spiral feeding rod, a speed reducer and a servo motor, the feeding hopper is arranged on one side of the drying cylinder, the feeding pipe is arranged on the lower end of the feeding hopper in the horizontal direction and one end of the feeding pipe extends into the drying cylinder, the spiral feeding rod is rotatably arranged in the feeding pipe, the output end of the speed reducer is connected with the end of the spiral feeding rod, and the driving end of the servo motor is connected with the input end of the speed reducer.
[0006] The impact dispersing member comprises a rotary motor, a speed reducer, a fixed shaft, an impact paddle and a discharging cylinder, the rotary motor is arranged at the top of the drying cylinder, the input end of the speed reducer is connected with the driving end of the rotary motor, the fixed shaft is rotatably arranged on the output end of the speed reducer and extends into the drying cylinder, the impact paddle is fixedly sleeved on the fixed shaft, and the discharging cylinder is sleeved outside the impact paddle and faces the outlet of the feeding pipe.
[0007] The hot air inlet member comprises an upper taper pipe, a necked pipe, a lower taper pipe and a taper air inlet hole plate, the upper taper pipe is arranged at the air inlet position of the lower end of the drying cylinder, the necked pipe is arranged at the lower end of the upper taper pipe, the lower taper pipe is arranged at the lower end of the necked pipe, and the taper air inlet hole plate is arranged at the upper end of the upper taper pipe and uniformly provided with air outlet holes along the taper surface.
[0008] The outer wall of the drying cylinder is in a jacketed structure, heating wires are arranged in the jacketed structure of the outer wall of the drying cylinder, and a heat preservation and insulation pad layer is arranged outside the heating wires.
[0009] A taper transition section is arranged at the position where the top of the drying cylinder is connected with the air exhaust pipeline.
[0010] The outer side of the drying cylinder is covered with heat preservation cotton, and a sheath is arranged outside the heat preservation cotton.
[0011] The samarium-iron-based magnetic powder drying device has the following beneficial effects: the existing drying cylinder is improved, the continuous feeding mechanism is arranged on the side wall of the drying cylinder, the quantitative continuous feeding of the dehydrated magnetic powder wet material is realized by taking the servo motor as the power, the impact dispersing member is arranged, the physical impact on the magnetic powder wet material is realized, the agglomerates in the magnetic powder wet material are dispersed under the shearing action, the magnetic powder and the hot air are more fully contacted, the magnetic powder is added to the top of the drying cylinder and moves downward, the hot air moves upward through the lower hot air inlet member, the magnetic powder is dried by the hot air, the dried magnetic powder enters the cyclone collector and the bag-type dust collector under the action of the air pressure, the dried magnetic powder is collected, the structure is simple, the degree of automation is high, the drying efficiency is high, and the continuous drying operation of the magnetic powder wet material can be realized. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a front view structural schematic diagram of the samarium-iron-based magnetic powder drying device.
[0013] Figure 2 It is a front view structural schematic diagram of the samarium-iron-based magnetic powder drying device. Figure 1
[0014] Figure 3 It is a partial sectional view structural schematic diagram of the hot air inlet member.
[0015] In the figure: 1, drying cylinder; 2, heater; 3, air blower; 4, exhaust duct; 5, cyclone collector; 6, cloth bag dust collector; 7, induced draft fan; 8, feeding hopper; 9, feeding pipe; 10, spiral feeding rod; 11, speed reducer; 12, servo motor; 13, rotary motor; 14, speed reducer; 15, fixed shaft; 16, impact paddle; 17, discharging cylinder; 18, upper conical pipe; 19, necked pipe; 20, lower conical pipe; 21, conical air inlet orifice plate; 22, heating wire; 23, heat insulation pad; 24, conical transition section; 25, heat insulation cotton; 26, sheath. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0017] Embodiment: combined with the drawings in the specification Figures 1-3It can be known that the samarium iron-based magnetic powder drying device is provided, the hot air inlet member is arranged at the bottom of the drying cylinder 1, one end of the hot air inlet member is communicated with the heater 2, one end of the heater 2 is communicated with the air outlet end of the air blower 3, the continuous feeding mechanism is arranged at the side of the drying cylinder 1, the outlet end of the continuous feeding mechanism is provided with the impact and scattering member, the top of the drying cylinder 1 is provided with the conical transition section 24 at the connecting position of the air extraction pipeline 4, the top of the drying cylinder 1 is connected with the cyclone collector 5 through the air extraction pipeline 4, the outlet end of the cyclone collector 5 is connected with the bag dust collector 6, and the exhaust end of the bag dust collector 6 is connected with the air inlet end of the induced draft fan 7; wherein the continuous feeding mechanism comprises a feeding hopper 8, a feeding pipe 9, a spiral feeding rod 10, a speed reducer 11 and a servo motor 12, the feeding hopper 8 is arranged on one side of the drying cylinder 1, the feeding pipe 9 is arranged on the lower end of the feeding hopper 8 in the horizontal direction and one end of the feeding pipe 9 extends into the drying cylinder 1, the spiral feeding rod 10 is rotatably arranged in the feeding pipe 9, the output end of the speed reducer 11 is connected with the end of the spiral feeding rod 10, and the driving end of the servo motor 12 is connected with the input end of the speed reducer 11. The existing drying cylinder 1 is improved, the continuous feeding mechanism is arranged on the side wall of the drying cylinder 1, the servo motor 12 is used as power, the speed reducer 11 is matched to realize the constant-speed rotation control of the spiral feeding rod 10, so that the purpose of continuously and quantitatively feeding the dehydrated magnetic powder wet material in the feeding hopper 8 into the drying cylinder 1 is realized; the impact and scattering member is arranged, the physical impact on the magnetic powder wet material is realized, the agglomerates in the magnetic powder wet material are scattered under the shearing action, and the magnetic powder is more fully and sufficiently contacted with the hot air; the magnetic powder is added to the top of the drying cylinder 1 and moves downward, and the hot air moves upward from the lower hot air inlet member, the magnetic powder is dried by using the hot air, and the dried magnetic powder enters the cyclone collector 5 and the bag dust collector 6 under the action of air pressure, so that the dried magnetic powder is concentrated and collected, the structure is simple, the degree of automation is high, the drying efficiency is high, and the continuous drying operation of the magnetic powder wet material can be realized.
[0018] In the specific implementation process, as a preferred arrangement, the impact and scattering member comprises a rotary motor 13, a speed reducer 14, a fixed shaft 15, an impact paddle 16 and a discharging cylinder 17, the rotary motor 13 is arranged at the top of the drying cylinder 1, the input end of the speed reducer 14 is connected with the driving end of the rotary motor 13, the fixed shaft 15 is rotatably arranged on the output end of the speed reducer 14 and the lower end of the fixed shaft 15 extends into the drying cylinder 1, the impact paddle 16 is fixedly sleeved on the fixed shaft 15, and the discharging cylinder 17 is sleeved outside the impact paddle 16 and opposite to the lower side of the outlet of the feeding pipe 9. In use, through the cooperation of the rotary motor 13 and the speed reducer 14, the rotation control of the fixed shaft 15 and the impact paddle 16 is realized, the magnetic powder wet material fed into the feeding pipe is scattered in the rotation process of the impact paddle 16, the magnetic powder is quickly and fully contacted with the hot air, and the hot air drying efficiency is improved.
[0019] In the specific implementation process, as the preferred setting, the hot air inlet member includes an upper taper pipe 18, a neck pipe 19, a lower taper pipe 20 and a tapered air inlet hole plate 21, the upper taper pipe 18 is arranged at the air inlet position of the lower end of the drying cylinder 1, the neck pipe 19 is arranged at the lower end of the upper taper pipe 18, the lower taper pipe 20 is arranged at the lower end of the neck pipe 19, and the tapered air inlet hole plate 21 is arranged at the upper end of the upper taper pipe 18 and uniformly provided with air outlet holes along the taper surface, the arrangement of the lower taper pipe 20 facilitates the connection with the heater 2 and improves the hot air supply efficiency, the wind speed and wind pressure at the position of the neck pipe 19 are increased, and the arrangement of the upper taper pipe 18 facilitates the rapid airflow and effectively improves the assembly convenience of the tapered air inlet hole plate 21, the hot air at the position of the tapered air inlet hole plate 21 is more uniformly distributed, and part of the hot air can go up along the inner wall of the drying cylinder 1, and the wall magnetic powder is attached to the wall or accumulated at the lower part of the drying cylinder 1.
[0020] In the specific implementation process, as the preferred setting, the outer wall of the drying cylinder 1 is a jacket type structure, the heating wire 22 is arranged in the jacket structure of the outer wall of the drying cylinder 1, and the heat preservation and insulation pad layer 23 is arranged outside the heating wire 22, wherein the outer wall of the drying cylinder 1 is covered with the heat preservation cotton 25, and the outer side of the heat preservation cotton 25 is provided with the sheath 26, the heating wire 22 can heat the side wall of the drying cylinder 1, thereby effectively ensuring the internal temperature of the drying cylinder 1, and the design of the heat preservation and insulation pad layer 23 and the heat preservation cotton 25 can effectively reduce heat loss and avoid the influence of the external environment on the drying operation, thereby further ensuring the drying operation efficiency.
[0021] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A samarium iron-based magnetic powder drying apparatus comprising a drying drum, characterized by, The bottom of the drying cylinder is provided with a hot air inlet member, one end of which is communicated with a heater, one end of the heater is communicated with the air outlet end of a blower, the side of the drying cylinder is provided with a continuous feeding mechanism, the outlet end of the continuous feeding mechanism is provided with an impact dispersing member, the top of the drying cylinder is connected with a cyclone collector through an air extraction pipeline, the outlet end of the cyclone collector is connected with a bag-type dust collector, and the exhaust end of the bag-type dust collector is connected with the air inlet end of an induced draft fan; The continuous feeding mechanism comprises a feeding hopper, a feeding pipe, a spiral feeding rod, a speed reducer and a servo motor, the feeding hopper is arranged on one side of the drying cylinder, the feeding pipe is arranged on the lower end of the feeding hopper in the horizontal direction and one end of which extends into the drying cylinder, the spiral feeding rod is rotatably arranged in the feeding pipe, the output end of the speed reducer is connected with the end of the spiral feeding rod, and the driving end of the servo motor is connected with the input end of the speed reducer.
2. A samarium iron-based magnetic powder drying apparatus according to claim 1, wherein The impact dispersing member comprises a rotary motor, a speed reducer, a fixed shaft, an impact paddle and a discharging cylinder, the rotary motor is arranged on the top of the drying cylinder, the input end of the speed reducer is connected with the driving end of the rotary motor, the fixed shaft is rotatably arranged on the output end of the speed reducer and the lower end of which extends into the drying cylinder, the impact paddle is fixedly sleeved on the fixed shaft, and the discharging cylinder is sleeved on the outside of the impact paddle and faces the lower side of the outlet of the feeding pipe.
3. A samarium iron-based magnetic powder drying apparatus according to claim 1, wherein The hot air inlet member comprises an upper conical pipe, a necked pipe, a lower conical pipe and a conical air inlet hole plate, the upper conical pipe is arranged at the air inlet position of the lower end of the drying cylinder, the necked pipe is arranged on the lower end of the upper conical pipe, the lower conical pipe is arranged on the lower end of the necked pipe, and the conical air inlet hole plate is arranged on the upper end of the upper conical pipe and is uniformly provided with air outlet holes along the conical surface.
4. A samarium iron-based magnetic powder drying apparatus according to claim 1, wherein The outer wall of the drying cylinder is of a jacket structure, heating wires are arranged in the jacket structure of the outer wall of the drying cylinder, and a heat preservation and insulation pad layer is arranged on the outside of the heating wires.
5. A samarium iron-based magnetic powder drying apparatus according to claim 1, wherein A conical transition section is arranged at the position where the top of the drying cylinder is connected with the air extraction pipeline.
6. A samarium iron-based magnetic powder drying apparatus according to claim 1, wherein The outer side of the drying cylinder is covered with heat preservation cotton, and a protective sleeve is arranged on the outside of the heat preservation cotton.