Raw material drying equipment for neodymium iron boron magnet processing

Abstract

The utility model relates to the technical field of magnet processing, and discloses a raw material drying device for neodymium iron boron magnet processing, which comprises an electric heating box, a fixed cylinder is fixedly arranged on the inner bottom surface of the electric heating box, feed ports are arranged on two sides of the bottom of the fixed cylinder, the fixed cylinder is of a hollow structure with an upper opening and a lower opening, and the feed ports are communicated with the fixed cylinder. A stirring assembly is arranged between the interior of the fixing cylinder and the top of the electric heating box, and a discharging pipe is fixedly installed in the middle of the bottom of the electric heating box. Through the arrangement of the stirring assembly, the flow guide cover, the air heater and other components, raw materials at the bottom of the electric heating box are conveyed to the upper end of the electric heating box for circulation through the auger rod while the raw materials in the electric heating box are stirred and dried in the horizontal direction through the stirring blades, and sufficient stirring and drying are conducted; and the drying efficiency of the raw materials is improved under the cooperation of the hot-air blower and the flow guide cover, the drying time is saved, and therefore the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnet processing, in particular to a raw material drying device used for processing neodymium iron boron magnets. Background Art

[0002] NdFeB magnets can be divided into bonded NdFeB and sintered NdFeB. Sintered NdFeB permanent magnet materials have excellent magnetic properties and are widely used in electronics, power machinery, medical equipment, toys, packaging, hardware machinery, aerospace and other fields. The more common ones are permanent magnet motors, speakers, magnetic separators, computer disk drives, magnetic resonance imaging equipment and instruments, etc. In the production and processing of sintered NdFeB, the raw materials for NdFeB magnet processing need to be dried, so drying equipment is needed.

[0003] A Chinese patent document with publication number CN218600187U provides a magnetite powder processing dryer, including a drying mechanism, the drying mechanism including a workbench and a dryer body, the inner wall of the workbench is fixedly connected to the dryer body, the inner side surface of the workbench is fixedly connected to a hot air blower, and the air outlet of the hot air blower is fixedly connected to an air outlet pipe; by setting a motor, after starting the motor, the output end of the motor drives the rotating rod to rotate, the rotating rod drives the dryer body to rotate, the dryer body drives the connecting rod to rotate, and the connecting rod drives the stirring rod to rotate, so that the magnetite powder in the dryer body is stirred, and the magnetite after stirring is fully in contact with wind and heat, which greatly improves the drying efficiency;

[0004] In the above scheme, when the dryer body drives the connecting rod to rotate, and the connecting rod drives the stirring rod to rotate, the stirring rod can only fully stir the magnet raw materials at the bottom of the dryer, while the raw materials at the top of the dryer are easily insufficiently stirred, resulting in insufficient fusion of the raw materials, affecting the quality of the final product, and the hot air blower can only air dry the raw materials at the top of the dryer. Therefore, the utility model designs a raw material drying device for NdFeB magnet processing to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a raw material drying device for processing NdFeB magnets to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a raw material drying equipment for processing neodymium iron boron magnets, comprising: an electric heating box, a fixed cylinder is fixedly installed on the inner bottom surface of the electric heating box, and feed ports are opened on both sides of the bottom of the fixed cylinder, the fixed cylinder is a hollow structure with upper and lower openings, a stirring assembly is arranged between the interior of the fixed cylinder and the top of the electric heating box, a feed pipe is fixedly installed in the middle position of the bottom of the electric heating box, and the top of the feed pipe is connected to the bottom of the fixed cylinder, a solenoid valve is fixedly installed on the bottom of the feed pipe, a hot air blower is symmetrically fixedly installed on the surface of the upper end of the electric heating box, and an air outlet duct is fixedly installed at the air outlet end of the hot air blower, and one end of the air outlet duct extends to the interior of the electric heating box, and a feed pipe is fixedly installed on the front side of the upper end of the electric heating box.

[0007] Preferably, the stirring assembly includes: an auger rod, a servo motor and a connecting ring, the auger rod is rotatably installed in the middle position of the top of the electric heating box, the lower end of the auger rod extends to the lower end of the discharge pipe through the interior of the fixed cylinder, the servo motor is fixedly installed in the middle position of the top of the electric heating box, the output end of the servo motor is fixedly connected to the top of the auger rod, the connecting ring is fixedly installed on the inner wall of the upper end of the electric heating box, the surface of the upper end of the auger rod is fixedly connected with a rotating disk, and the side wall of the rotating disk is rotatably installed with the inner ring of the connecting ring, the bottom of the rotating disk is symmetrically fixedly installed with a stirring rod, and three stirring blades are fixedly connected to both sides of the lower end of the stirring rod at equal distances.

[0008] Preferably, six air outlet holes are equidistantly provided on the surface of the rotating disk along the circumference, and exhaust fans are symmetrically fixedly installed on the top of the electric heating box, and two of the exhaust fans cooperate with the six air outlet holes.

[0009] Preferably, a fixing rod is symmetrically fixedly connected to the surface of the stirring rod close to the inner wall of the electric heating box, a scraper is fixedly connected between one ends of the two fixing rods, and one side of the scraper is placed on the inner wall of the electric heating box.

[0010] Preferably, a flow guide cover is fixedly connected to the surface of the upper end of the fixed cylinder, and the flow guide cover is a conical structure that is small at the top and large at the bottom.

[0011] Preferably, the bottom of the electric heating box is in an inverted cone shape, and the fixing cylinder is located in the middle of the bottom of the electric heating box.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model is provided with a stirring assembly, a guide cover, a hot air blower and other components. While the stirring blade stirs and dries the raw materials in the electric heating box in the horizontal direction, the raw materials at the bottom of the electric heating box are transported to the upper end of the electric heating box through the auger rod for circulation, and are fully stirred and dried. The drying efficiency of the raw materials is accelerated with the cooperation of the hot air blower and the guide cover, which saves the drying time and improves the quality of the product.

[0014] 2. The utility model arranges components such as a rotating disk, air outlets and an exhaust fan. During the process of stirring and drying the raw materials, the exhaust fan evacuates the interior of the electric heating box, so that the water vapor generated by the drying of the raw materials passes through the air outlets and is discharged from the exhaust fan to the outside, thereby reducing the water vapor generated by the drying inside the electric heating box and accelerating the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front cross-sectional view of the utility model;

[0016] Figure 2 It is a main schematic diagram of the utility model;

[0017] Figure 3 It is a left view schematic diagram of the local structure of the fixed cylinder and the feed port of the utility model.

[0018] In the figure: 1. electric heating box; 101. feeding pipe; 2. fixing cylinder; 201. feeding port; 3. stirring assembly; 301. auger rod; 302. servo motor; 303. connecting ring; 304. rotating disk; 3041. air outlet; 305. stirring rod; 3051. stirring blade; 4. air guide cover; 5. feeding pipe; 6. solenoid valve; 7. exhaust fan; 8. fixing rod; 801. scraper; 9. hot air blower; 901. air outlet duct. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3The utility model provides an embodiment: a raw material drying device for processing NdFeB magnets, comprising: an electric heating box 1, a fixed cylinder 2 is fixedly installed on the inner bottom surface of the electric heating box 1, a heating wire is spirally installed inside the electric heating box 1, and the electric heating box 1 is connected to an external power supply through the heating wire, so that the electric heating box 1 heats and dries the raw materials inside the electric heating box 1, and both sides of the bottom of the fixed cylinder 2 are provided with a feed port 201, the fixed cylinder 2 is a hollow structure with upper and lower openings, and a stirring component 3 is arranged between the inside of the fixed cylinder 2 and the top of the electric heating box 1, and through the arrangement of the stirring component 3, the stirring blade 3051 can stir and dry the raw materials inside the electric heating box 1 in a horizontal direction, and at the same time, the stirring blade 3051 can stir and dry the raw materials inside the electric heating box 1 ... The raw materials at the bottom of the electric heating box 1 are transported to the upper end of the electric heating box 1 through the auger rod 301 for circulation, and are fully stirred and dried. The drying efficiency of the raw materials is accelerated with the cooperation of the hot air blower 9 and the air guide cover 4, which saves the drying time. A feed pipe 5 is fixedly installed in the middle position of the bottom of the electric heating box 1, and the top of the feed pipe 5 is connected to the bottom of the fixed cylinder 2, and a solenoid valve 6 is fixedly installed on the bottom of the feed pipe 5. A hot air blower 9 is symmetrically fixedly installed on the surface of the upper end of the electric heating box 1, and an air outlet duct 901 is fixedly installed at the air outlet end of the hot air blower 9, and one end of the air outlet duct 901 extends to the interior of the electric heating box 1, and a feed pipe 101 is fixedly installed on the front side of the upper end of the electric heating box 1.

[0021] See also Figure 1In an embodiment of the utility model: the stirring assembly 3 includes: an auger rod 301, a servo motor 302 and a connecting ring 303, the auger rod 301 is rotatably installed in the middle position of the top of the electric heating box 1, the lower end of the auger rod 301 extends to the lower end of the inside of the discharge pipe 5 through the interior of the fixed cylinder 2, the servo motor 302 is fixedly installed in the middle position of the top of the electric heating box 1, the output end of the servo motor 302 is fixedly connected to the top of the auger rod 301, the connecting ring 303 is fixedly installed on the inner wall of the upper end of the electric heating box 1, the surface of the upper end of the auger rod 301 is fixedly connected with a rotating disk 304, and the side wall of the rotating disk 304 is rotatably installed with the inner ring of the connecting ring 303, the bottom of the rotating disk 304 is symmetrically fixedly installed with a stirring rod 305, and three stirring blades 3051 are fixedly connected to both sides of the lower end of the stirring rod 305 at equal distances. When drying the raw materials for processing NdFeB magnets, the raw materials are poured into the electric heating box 1 through the feed pipe 101, and the servo motor 302 is started. At this time, the output end of the servo motor 302 drives the rotating disk 304 fixedly installed on the upper end of the auger rod 301 to rotate, so that the rotating disk 304 drives the stirring rod 305 at the bottom to rotate. At this time, the stirring blades 3051 symmetrical on the surface of the stirring rod 305 horizontally stir and dry the raw materials in the electric heating box 1. At the same time, the auger rod 301 rotates through the symmetrical feed port 201 at the bottom of the fixed cylinder 2. The bottom of 301 transports the raw materials at the bottom of the electric heating box 1 to the top of the fixed cylinder 2, and is led out from the top of the fixed cylinder 2 and falls on the surface of the guide cover 4 to disperse the led out raw materials. The hot air blown out by the hot air blower 9 through the air outlet duct 901 at the air outlet end accelerates the drying efficiency of the dispersed raw materials. This method is used until the raw materials are completely dried. The solenoid valve 6 is opened to control the reverse rotation of the auger rod 301 through the servo motor 302 to discharge the dried raw materials. This method accelerates the drying efficiency of the raw materials processed by NdFeB magnets and saves drying time.

[0022] See also Figure 1 In the embodiment of the utility model, six air outlets 3041 are equidistantly provided on the surface of the rotating disk 304 along the circumference, and exhaust fans 7 are symmetrically fixedly installed on the top of the electric heating box 1, and two exhaust fans 7 cooperate with the six air outlets 3041. During the process of the auger rod 301 and the stirring blade 3051 stirring and drying the raw materials, the exhaust fan 7 is started, and the exhaust fan 7 exhausts air inside the electric heating box 1, and the water vapor generated by drying passes through the air outlet 3041 and is discharged from the exhaust fan 7 to the outside, so as to reduce the water vapor generated by drying inside the electric heating box 1 and speed up the drying efficiency.

[0023] See also Figure 1In the embodiment of the utility model: the surface of the stirring rod 305 close to the inner wall of the electric heating box 1 is symmetrically fixed with a fixing rod 8, and a scraper 801 is fixedly connected between one end of the two fixing rods 8, and one side of the scraper 801 is placed on the inner wall of the electric heating box 1. When the rotating disk 304 drives the two symmetrical stirring rods 305 at the bottom to rotate, the scraper 801 on one side of the stirring rod 305 scrapes off the raw materials processed by the NdFeB magnet attached to the inner wall of the electric heating box 1, so as to prevent the dried raw materials from adhering to the inner wall of the electric heating box 1 and causing incomplete discharge.

[0024] See also Figure 1 In the embodiment of the utility model: the surface of the upper end of the fixed cylinder 2 is fixedly connected with a guide cover 4, and the guide cover 4 is a conical structure with a small top and a large bottom. After the raw materials at the bottom of the electric heating box 1 are led out from the top of the fixed cylinder 2 by the auger rod 301, the raw materials fall on the surface of the top of the guide cover 4. The guide cover 4 with a conical structure can disperse the led-out raw materials, and when the hot air blower 9 air-dries the dispersed raw materials, the air-drying efficiency of the raw materials can be improved.

[0025] See also Figure 1 In the embodiment of the utility model, the bottom of the electric heating box 1 is in an inverted cone shape, and the fixed cylinder 2 is located in the middle of the bottom of the electric heating box 1. When passing through the inverted cone bottom, the raw materials inside the electric heating box 1 move closer to the middle of the bottom of the electric heating box 1, so that the auger rod 301 rotating inside the fixed cylinder 2 is convenient for conveying the raw materials at the bottom of the electric heating box 1, and it is also convenient for unloading the dried raw materials.

[0026] Working principle: When the power is turned on, when drying the raw materials for processing NdFeB magnets, the raw materials are poured into the electric heating box 1 through the feed pipe 101, and the servo motor 302 is started. At this time, the output end of the servo motor 302 drives the rotating disk 304 fixedly installed on the upper end of the auger rod 301 to rotate, so that the rotating disk 304 drives the stirring rod 305 at the bottom to rotate. At this time, the stirring blades 3051 symmetrical on the surface of the stirring rod 305 horizontally stir and dry the raw materials inside the electric heating box 1. At the same time, the auger rod 301 is rotating, through The symmetrical feed port 201 at the bottom of the fixed cylinder 2 enables the bottom of the auger rod 301 to transport the raw materials at the bottom of the electric heating box 1 to the top of the fixed cylinder 2, and then lead out from the top of the fixed cylinder 2, fall on the surface of the air guide 4, and disperse the led out raw materials. The hot air blown out by the hot air blower 9 through the air outlet duct 901 at the air outlet end accelerates the drying efficiency of the dispersed raw materials. In this way, until the raw materials are completely dried, the solenoid valve 6 is opened to control the reverse rotation of the auger rod 301 through the servo motor 302 to discharge the dried raw materials. The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A raw material drying equipment for NdFeB magnet processing, comprising: An electric heating box (1) is characterized in that: a fixed cylinder (2) is fixedly installed on the inner bottom surface of the electric heating box (1), and both sides of the bottom of the fixed cylinder (2) are provided with feed ports (201), the fixed cylinder (2) is a hollow structure with upper and lower openings, a stirring assembly (3) is arranged between the interior of the fixed cylinder (2) and the top of the electric heating box (1), a feed pipe (5) is fixedly installed in the middle position of the bottom of the electric heating box (1), and the top of the feed pipe (5) is connected to the bottom of the fixed cylinder (2), a solenoid valve (6) is fixedly installed at the bottom of the feed pipe (5), a hot air blower (9) is symmetrically fixedly installed on the surface of the upper end of the electric heating box (1), and an air outlet duct (901) is fixedly installed at the air outlet end of the hot air blower (9), and one end of the air outlet duct (901) extends to the interior of the electric heating box (1), and a feed pipe (101) is fixedly installed on the front side of the upper end of the electric heating box (1).

2. The raw material drying equipment for NdFeB magnet processing according to claim 1, characterized in that: The stirring assembly (3) comprises: an auger rod (301), a servo motor (302) and a connecting ring (303); the auger rod (301) is rotatably mounted at the middle position of the top of the electric heating box (1); the lower end of the auger rod (301) extends through the interior of the fixing cylinder (2) to the lower end of the inside of the feeding pipe (5); the servo motor (302) is fixedly mounted at the middle position of the top of the electric heating box (1); the output end of the servo motor (302) is connected to the auger rod (301) The top of the electric heating box (1) is fixedly connected to the top of the electric heating box (1), the connecting ring (303) is fixedly installed on the inner wall of the upper end of the electric heating box (1), the surface of the upper end of the auger rod (301) is fixedly connected to a rotating disk (304), and the side wall of the rotating disk (304) is rotatably installed with the inner ring of the connecting ring (303), the bottom of the rotating disk (304) is symmetrically fixedly installed with a stirring rod (305), and three stirring blades (3051) are fixedly connected to both sides of the lower end of the stirring rod (305) at equal distances.

3. The raw material drying equipment for NdFeB magnet processing according to claim 2, characterized in that: The surface of the rotating disk (304) is provided with six air outlet holes (3041) equidistantly along the circumference, and an exhaust fan (7) is symmetrically fixedly installed on the top of the electric heating box (1), and the two exhaust fans (7) cooperate with the six air outlet holes (3041).

4. The raw material drying equipment for NdFeB magnet processing according to claim 2, characterized in that: A fixing rod (8) is symmetrically fixedly connected to the surface of the stirring rod (305) on one side close to the inner wall of the electric heating box (1), a scraper (801) is fixedly connected between one ends of the two fixing rods (8), and one side of the scraper (801) is placed on the inner wall of the electric heating box (1).

5. The raw material drying equipment for NdFeB magnet processing according to claim 1, characterized in that: A flow guide cover (4) is fixedly connected to the surface of the upper end of the fixed cylinder (2), and the flow guide cover (4) is a conical structure that is small at the top and large at the bottom.

6. The raw material drying equipment for NdFeB magnet processing according to claim 1, characterized in that: The bottom of the electric heating box (1) is in an inverted cone shape, and the fixing cylinder (2) is located in the middle of the bottom of the electric heating box (1).

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