A rare alloy powder continuous dehydrogenation furnace and treatment process

Abstract

The present invention discloses an electric furnace for continuous dehydrogenation of rare alloy powder and a treatment process, comprising a furnace body, a box body fixed on one side of the furnace body, a sieve plate slidably connected between the inner walls of the furnace body, and a rotating spreading mechanism for spreading the alloy powder on the top of the sieve plate provided above the sieve plate; the rotating spreading mechanism comprises two fixed plates fixed on the inner wall of the furnace body, and a ring plate fixed between the opposite sides of the two fixed plates. The present invention relates to the field of alloy material processing technology. The electric furnace for continuous dehydrogenation of rare alloy powder and the treatment process, through the setting of the rotating spreading mechanism, utilize the self-rotation of three sets of spreading plates and the revolution around the pinion gear to achieve automatic and uniform spreading of the alloy powder on the top of the sieve plate, thereby avoiding the accumulation of alloy powder on the top of the sieve plate. After the alloy powder is spread out, it can be better heated and dehydrogenated, thereby improving the dehydrogenation effect of the alloy powder.

Description

Technical Field

[0001] The invention relates to the technical field of alloy material processing, in particular to a rare alloy powder continuous dehydrogenation electric furnace and a processing process. Background Art

[0002] Due to their unique physical and chemical properties, rare alloy powders are widely used in aerospace, new energy, electronic information, and other fields. However, during the preparation process, rare alloy powders often contain a certain amount of hydrogen, which can seriously affect the performance and service life of the alloy powder. Therefore, dehydrogenation treatment of rare alloy powders is a necessary and critical step.

[0003] Referring to the Chinese patent application number "202323004208.4" "A Dehydrogenation Furnace for Alloy Powder", this patent solves the problem that the existing dehydrogenation furnace has poor sealing effect during use, and the material input and output are usually exposed, especially when discharging the material, it is in direct contact with the air, causing the material to be contaminated by the air, with a high impurity content, resulting in a low material qualification rate; moreover, the existing dehydrogenation furnace heating furnace has the problem of fast heat dissipation and low heating efficiency, but when the existing dehydrogenation furnace dehydrogenates the alloy powder, the alloy powder cannot be spread evenly, and the alloy powder is easy to accumulate, affecting the dehydrogenation effect, and some large-particle unqualified alloy powder cannot be quickly screened out, affecting the quality of the finished product after the final dehydrogenation. To this end, we propose a continuous dehydrogenation electric furnace for rare alloy powder and a treatment process to solve the above problems. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a rare alloy powder continuous dehydrogenation furnace and treatment process, which solves the problems raised in the background art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A rare alloy powder continuous dehydrogenation electric furnace, comprising a furnace body, a box body fixed to one side of the furnace body, a sieve plate slidably connected between the inner walls of the furnace body, and a rotating spreading mechanism for spreading the alloy powder on the top of the sieve plate;

[0006] The rotary paving mechanism includes two fixed plates fixed on the inner wall of the furnace body, a ring plate is fixed between the opposite sides of the two fixed plates, a gear ring is fixed on the top of the ring plate, a small gear is provided in the center of the gear ring, three large gears are meshed around the small gear, and the three large gears are all meshed with the teeth of the gear ring, a vertical rod is fixed inside the small gear, a connecting plate is provided on the vertical rod, the vertical rod rotates in the connecting plate, one side of the connecting plate is fixed to the inner wall of the furnace body, vertical tubes are fixed inside the three large gears, mounting rings are fixed to the outer surfaces of the three vertical tubes, and multiple paving plates are fixed to the outer surfaces of the three mounting rings.

[0007] Preferably, a circular plate is fixed to the bottom end of the vertical rod, an annular groove is formed between the circular plate and the annular plate, and the outer surfaces of the three vertical tubes are all slidably connected to the inner surface of the annular groove.

[0008] Preferably, a vibrating screening material assembly is provided inside the furnace body and below the sieve plate, and the vibrating screening material assembly includes a rotating rod rotatably connected between the inner walls of the furnace body, one end of the rotating rod passes through the furnace body and extends to the interior of the box body, and two cams are fixed on the outer surface of the rotating rod, and the outer surfaces of the two cams are in contact and extrusion with the bottom of the sieve plate, and a motor is fixed on one side of the furnace body, and the motor drives the rotating rod to rotate.

[0009] Preferably, the rotating paving mechanism and the vibrating screen material assembly are linked through a linkage unit, and the linkage unit includes a driving rod rotatably connected to one side of the inner wall of the furnace body, one end of the driving rod passes through the furnace body and extends to the interior of the box body, and one end of the driving rod and the rotating rod are fixed with a pulley, and the two pulleys are connected by a belt transmission, and the other end of the driving rod is fixed with a bevel gear 1, and the top of the vertical rod is fixed with a bevel gear 2, and the bevel gear 1 is meshed with the bevel gear 2.

[0010] Preferably, each of the three vertical pipes is provided with a suction assembly for sucking and collecting the large-particle alloy powder after screening, and the suction assembly includes a collection box connected to the top of the vertical pipe, and a suction pump is installed on the vertical pipe.

[0011] Preferably, the interior of the vertical tube is provided with an anti-backflow unit for preventing the backflow of large-particle alloy powder, and the anti-backflow unit includes a baffle slidably connected between the inner walls of the vertical tube, a vertical rod is fixed to the bottom of the baffle, a round block is fixed to the outer surface of the vertical rod, two square plates are fixed on the inner wall of the vertical tube, a support plate is fixed between the opposite sides of the two square plates, the bottom end of the vertical rod passes through the support plate and extends to the bottom of the support plate, the outer surface of the vertical rod is slidably connected to the inner surface of the support plate, and the bottom of the round block is in contact with the top of the support plate.

[0012] Preferably, a drawer-type material storage box is provided on the bottom wall of the furnace body, and a furnace cover is connected to one side of the top of the furnace body by a hinge. The top of the furnace cover is connected to a feed pipe, and one side of the furnace body is connected to an exhaust pipe. Valves are installed on the feed pipe and the exhaust pipe.

[0013] The present invention also discloses a treatment process for a continuous dehydrogenation electric furnace of rare alloy powder, which specifically comprises the following steps:

[0014] Step 1: The alloy powder to be dehydrogenated is introduced into the furnace body through the feed pipe, the vacuum pump in the box is started to evacuate the furnace body, and the inert gas is further introduced into the furnace body through the feed pipe. The electric heating wire in the furnace body is started to heat and dehydrogenate the alloy powder. At the dehydrogenation temperature, the hydrogen element in the rare alloy powder escapes;

[0015] Step 2: Start the motor, the motor rod rotates, and the rod drives the rotary paving mechanism to work through the linkage unit. The three sets of paving plates rotate and revolve around the pinion to evenly spread the alloy powder on the top of the sieve plate. At the same time, the motor drives the cam to rotate, and the cam drives the sieve plate to vibrate up and down, drying the qualified fine alloy powder into the storage box for storage, and the large particles of alloy powder remain on the top of the sieve plate.

[0016] Step 3: Start the three suction pumps to suck the large-particle alloy powder remaining on the sieve plate into the collection box for storage. At the same time, the anti-backflow unit prevents the alloy powder from flowing back. Finally, pull out the storage box to take out the qualified alloy powder after dehydrogenation.

[0017] Beneficial effects

[0018] The present invention provides a continuous dehydrogenation furnace and treatment process for rare alloy powder. Compared with the prior art, it has the following advantages:

[0019] (1) By setting up a rotating spreading mechanism, the three sets of spreading plates are rotated and revolved around the small gear to achieve automatic and uniform spreading of the alloy powder on the top of the sieve plate, thus avoiding the accumulation of alloy powder on the top of the sieve plate. After the alloy powder is spread out, it can be better heated and dehydrogenated, thereby improving the dehydrogenation effect of the alloy powder.

[0020] (2) Through the setting of the vibrating screening assembly, the automatic screening of the alloy powder on the top of the sieve plate is realized, the qualified fine alloy powder is screened into the storage box for collection, and the unqualified large-particle alloy powder is left on the top of the sieve plate, waiting for further suction and collection. Through the setting of the linkage unit, the vibrating screening assembly is linked with the rotary spreading mechanism. While screening, the alloy powder can be spread at the same time. After the alloy powder is evenly spread, screening can be better performed.

[0021] (3) Through the setting of the suction component, the large-particle alloy powder remaining on the top of the sieve plate can be sucked into the collection box through the suction pump for storage and collection, which is convenient for subsequent removal and cleaning. In conjunction with the rotating spreading mechanism, the vertical pipe can simultaneously revolve and rotate, which is conducive to the rapid collection of alloy powder. Through the setting of the anti-backflow unit, after the alloy powder is sucked into the collection box, when the suction pump is closed, the baffle is automatically reset by gravity and blocks the vertical pipe to prevent the alloy powder from flowing back. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the external structure of the present invention;

[0023] Figure 2 This is a diagram showing the furnace cover of the present invention in an open state;

[0024] Figure 3 It is a three-dimensional diagram of the rotary paving mechanism, the vibrating screening assembly, and the linkage unit of the present invention;

[0025] Figure 4 This is a diagram showing the alloy powder state on the sieve plate paved with a paving plate according to the present invention;

[0026] Figure 5 It is a partial structural stereogram of the present invention;

[0027] Figure 6 A three-dimensional diagram of the circular plate and the ring plate of the present invention;

[0028] Figure 7 This is a cross-sectional view of the standpipe and collection box of the present invention.

[0029] In the figure: 1. Furnace body; 2. Box body; 3. Screen plate; 4. Rotary paving mechanism; 5. Circular plate; 6. Ring groove; 7. Vibrating screen assembly; 8. Linkage unit; 9. Suction assembly; 10. Anti-backflow unit; 11. Storage box; 12. Furnace cover; 13. Feed pipe; 14. Exhaust pipe; 15. Valve; 41. Fixed plate; 42. Ring plate; 43. Gear ring; 44. Pinion; 45. Gear 46. Vertical rod; 47. Connecting plate; 48. Vertical pipe; 49. Mounting ring; 410. Paving plate; 71. Rotating rod; 72. Cam; 73. Motor; 81. Drive rod; 82. Pulley; 83. Belt; 84. Bevel gear 1; 85. Bevel gear 2; 91. Collecting box; 92. Suction pump; 101. Baffle; 102. Vertical rod; 103. Round block; 104. Square plate; 105. Support plate. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] The present invention provides three technical solutions, including the following embodiments:

[0032] Example 1

[0033] See also Figures 1-6, a rare alloy powder continuous dehydrogenation electric furnace and treatment process, including a furnace body 1, the interior of the furnace body 1 is provided with an electric heating wire, which can heat and dehydrogenate the alloy powder after startup, a box body 2 is fixed to one side of the furnace body 1, and a vacuum pump is provided inside the box body 2. After startup, the internal space of the furnace body 1 can be evacuated, and a sieve plate 3 is slidably connected between the inner walls of the furnace body 1, and a plurality of sieve holes are penetrated on the sieve plate 3. Limiting blocks (not shown in the figure) are fixed on both sides of the inner wall of the furnace body 1, and the sieve plate 3 is placed on the top of the two limiting blocks. The function of the limiting blocks is to limit the sieve plate 3, allowing the sieve plate 3 to vibrate up and down, and a rotating spreading mechanism 4 for spreading the alloy powder on the top of the sieve plate 3 is provided above the sieve plate 3;

[0034] The rotary paving mechanism 4 includes two fixed plates 41 fixed on the inner wall of the furnace body 1, and a ring plate 42 is fixed between the opposite sides of the two fixed plates 41, and a gear ring 43 is fixed on the top of the ring plate 42. A small gear 44 is provided in the center of the gear ring 43, and three large gears 45 are meshed around the small gear 44. The three large gears 45 are all meshed with the teeth of the gear ring 43. A vertical rod 46 is fixed inside the small gear 44, and a connecting plate 47 is provided on the vertical rod 46. The vertical rod 46 rotates in the connecting plate 47, and one side of the connecting plate 47 is fixed to the inner wall of the furnace body 1. Vertical pipes 48 are fixed inside the three large gears 45, and mounting rings 49 are fixed to the outer surfaces of the three vertical pipes 48. Multiple paving plates 410 are fixed to the outer surfaces of the three mounting rings 49. When the paving plates 410 rotate, the alloy powder on the top of the sieve plate 3 can be evenly paved.

[0035] By setting up the rotary paving mechanism 4 and utilizing the self-rotation of the three sets of paving plates 410 and the revolution around the pinion 44, the automatic and uniform paving of the alloy powder on the top of the sieve plate 3 is achieved, thus avoiding the accumulation of alloy powder on the top of the sieve plate 3. After the alloy powder is spread out, it can be better heated and dehydrogenated, thereby improving the dehydrogenation effect of the alloy powder.

[0036] A circular plate 5 is fixed to the bottom end of the vertical rod 46 , and an annular groove 6 is formed between the circular plate 5 and the annular plate 42 . The outer surfaces of the three vertical tubes 48 are all slidably connected to the inner surface of the annular groove 6 .

[0037] A vibrating screening material assembly 7 is provided inside the furnace body 1 and below the sieve plate 3. The vibrating screening material assembly 7 includes a rotating rod 71 rotatably connected between the inner walls of the furnace body 1. One end of the rotating rod 71 passes through the furnace body 1 and extends to the inside of the box body 2. Two cams 72 are fixed on the outer surface of the rotating rod 71. The outer surfaces of the two cams 72 are in contact and squeezed with the bottom of the sieve plate 3. When the cam 72 rotates, its raised part contacts the bottom of the sieve plate 3, which can drive the sieve plate 3 to lift up. When the non-raised part contacts the bottom of the sieve plate 3, it can drive the sieve plate 3 to fall, thereby realizing the up and down vibration screening of the sieve plate 3. A motor 73 is fixed on one side of the furnace body 1. The motor 73 is controlled by an external switch and is electrically connected to an external power supply. The motor 73 drives the rotating rod 71 to rotate.

[0038] By setting up the vibrating screening assembly 7, the automatic screening of the alloy powder on the top of the sieve plate 3 is realized, the qualified fine alloy powder is screened into the storage box 11 for collection, and the unqualified large-particle alloy powder is left on the top of the sieve plate 3, waiting for further suction collection.

[0039] The rotary paving mechanism 4 and the vibrating screen material assembly 7 are linked through a linkage unit 8. The linkage unit 8 includes a driving rod 81 rotatably connected to one side of the inner wall of the furnace body 1. One end of the driving rod 81 passes through the furnace body 1 and extends to the interior of the box body 2. One end of the driving rod 81 and the rotating rod 71 are both fixed with a pulley 82. The two pulleys 82 are connected by a belt 83. The other end of the driving rod 81 is fixed with a bevel gear 1 84, and the top of the vertical rod 46 is fixed with a bevel gear 2 85. The bevel gear 1 84 is meshed with the bevel gear 2 85.

[0040] By setting the linkage unit 8, the vibrating screening assembly 7 and the rotary spreading mechanism 4 are linked together, so that the alloy powder can be spread while screening the material. After the alloy powder is evenly spread, the screening can be better performed.

[0041] A drawer-type material storage box 11 is provided on the bottom wall of the furnace body 1. A furnace cover 12 is connected to one side of the top of the furnace body 1 by a hinge. The top of the furnace cover 12 is connected to a feed pipe 13. The alloy powder enters the furnace body 1 from the feed pipe 13. At the same time, the inert gas also enters the furnace body 1 from the feed pipe 13. An exhaust pipe 14 is connected to one side of the furnace body 1. Valves 15 are installed on both the feed pipe 13 and the exhaust pipe 14.

[0042] Example 2

[0043] Based on Example 1, see Figure 7As shown, the three vertical pipes 48 are each provided with a suction assembly 9 for sucking and collecting the large-particle alloy powder after screening. The suction assembly 9 includes a collecting box 91 connected to the top of the vertical pipe 48. The collecting box 91 is used to collect the sucked-up large-particle alloy powder. A suction pump 92 is installed on the vertical pipe 48. The suction pump 92 is controlled by an external switch and is electrically connected to an external power supply. After the suction pump 92 is started, the large-particle alloy powder on the sieve plate 3 can be sucked into the collecting box 91.

[0044] Through the setting of the suction component 9, the large-particle alloy powder remaining on the top of the sieve plate 3 can be sucked into the collection box 91 through the suction pump 92 for storage and collection, which is convenient for subsequent removal and cleaning. In conjunction with the rotary paving mechanism 4, the vertical pipe can revolve and rotate at the same time, which is conducive to the rapid collection of alloy powder.

[0045] The interior of the vertical tube 48 is provided with an anti-backflow unit 10 for preventing the backflow of large-particle alloy powder. The anti-backflow unit 10 includes a baffle 101 that is slidably connected between the inner walls of the vertical tube 48. The baffle 101 is adapted to the size of the vertical tube 48. A vertical rod 102 is fixed to the bottom of the baffle 101, and a round block 103 is fixed to the outer surface of the vertical rod 102. Two square plates 104 are fixed on the inner wall of the vertical tube 48, and a support plate 105 is fixed between the opposite sides of the two square plates 104. The bottom end of the vertical rod 102 passes through the support plate 105 and extends to the bottom of the support plate 105. The outer surface of the vertical rod 102 is slidably connected to the inner surface of the support plate 105, and the bottom of the round block 103 contacts the top of the support plate 105.

[0046] By setting the backflow prevention unit 10, after the alloy powder is sucked into the collection box 91, when the suction pump 92 is closed, the baffle 101 automatically resets due to gravity and blocks the vertical pipe 48 to prevent the alloy powder from flowing back.

[0047] Example 3

[0048] Based on Example 2, see Figure 1-Figure 7 As shown, the present invention also discloses a treatment process for a continuous dehydrogenation electric furnace of rare alloy powder, which specifically includes the following steps:

[0049] Step 1: Introduce the alloy powder to be dehydrogenated into the furnace body 1 through the feed pipe 13, start the vacuum pump in the box 2 to evacuate the furnace body 1, further introduce inert gas into the furnace body 1 through the feed pipe 13, start the electric heating wire in the furnace body 1, and heat the alloy powder for dehydrogenation. At the dehydrogenation temperature, the hydrogen element in the rare alloy powder escapes;

[0050] Step 2: Start the motor 73, and the motor 73 rotating rod 71 rotates. The rotating rod 71 drives the rotary paving mechanism 4 to work through the linkage unit 8. The three sets of paving plates 410 rotate and revolve around the pinion 44 to evenly spread the alloy powder on the top of the sieve plate 3. At the same time, the motor 73 drives the cam 72 to rotate, and the cam 72 drives the sieve plate 3 to vibrate up and down, drying the qualified fine alloy powder into the storage box 11 for storage, and the large particles of alloy powder remain on the top of the sieve plate 3.

[0051] Step 3: Start the three suction pumps 92 to suck the large-particle alloy powder remaining on the sieve plate 3 into the collection box 91 for storage. At the same time, the anti-backflow unit 10 prevents the alloy powder from flowing back. Finally, pull out the storage box 11 to take out the qualified alloy powder after dehydrogenation.

[0052] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0053] The above embodiments of the invention are described in detail, but the contents are only preferred embodiments of the invention and should not be considered to limit the scope of the invention. All equivalent changes and improvements made within the scope of the invention should still fall within the scope of the invention.

Claims

1. A rare alloy powder continuous dehydrogenation electric furnace, comprising a furnace body (1), a box body (2) fixed to one side of the furnace body (1), characterized in that: A sieve plate (3) is slidably connected between the inner walls of the furnace body (1), and a rotary spreading mechanism (4) for spreading the alloy powder on the top of the sieve plate (3) is provided above the sieve plate (3); The rotary paving mechanism (4) comprises two fixed plates (41) fixed on the inner wall of the furnace body (1), a ring plate (42) is fixed between the opposite sides of the two fixed plates (41), a gear ring (43) is fixed on the top of the ring plate (42), a small gear (44) is provided in the center of the gear ring (43), three large gears (45) are meshed around the small gear (44), and the three large gears (45) are all meshed with the teeth of the gear ring (43). A vertical rod (46) is fixed inside the gear (44), a connecting plate (47) is provided on the vertical rod (46), the vertical rod (46) rotates inside the connecting plate (47), one side of the connecting plate (47) is fixed to the inner wall of the furnace body (1), vertical tubes (48) are fixed inside the three large gears (45), mounting rings (49) are fixed on the outer surfaces of the three vertical tubes (48), and a plurality of paving plates (410) are fixed on the outer surfaces of the three mounting rings (49); Each of the three vertical pipes (48) is provided with a suction assembly (9) for sucking and collecting the large-particle alloy powder after screening, and the suction assembly (9) includes a collection box (91) connected to the top of the vertical pipe (48), and a suction pump (92) is installed on the vertical pipe (48); The interior of the vertical tube (48) is provided with an anti-backflow unit (10) for preventing the backflow of large-particle alloy powder. The anti-backflow unit (10) includes a baffle (101) slidably connected between the inner walls of the vertical tube (48). A vertical rod (102) is fixed to the bottom of the baffle (101). A round block (103) is fixed to the outer surface of the vertical rod (102). Two square plates (104) are fixed on the inner wall of the vertical tube (48). A support plate (105) is fixed between the opposite sides of the two square plates (104). The bottom end of the vertical rod (102) passes through the support plate (105) and extends to the bottom of the support plate (105). The outer surface of the vertical rod (102) is slidably connected to the inner surface of the support plate (105). The bottom of the round block (103) contacts the top of the support plate (105).

2. The continuous dehydrogenation furnace for rare alloy powder according to claim 1, characterized in that: A circular plate (5) is fixed to the bottom end of the vertical rod (46), and an annular groove (6) is formed between the circular plate (5) and the annular plate (42). The outer surfaces of the three vertical tubes (48) are all slidably connected to the inner surface of the annular groove (6).

3. The continuous dehydrogenation furnace for rare alloy powder according to claim 2, characterized in that: A vibrating screening material assembly (7) is provided inside the furnace body (1) and below the sieve plate (3). The vibrating screening material assembly (7) comprises a rotating rod (71) rotatably connected between the inner walls of the furnace body (1). One end of the rotating rod (71) passes through the furnace body (1) and extends to the inside of the box body (2). Two cams (72) are fixed on the outer surface of the rotating rod (71). The outer surfaces of the two cams (72) are in contact with and squeezed against the bottom of the sieve plate (3). A motor (73) is fixed on one side of the furnace body (1). The motor (73) drives the rotating rod (71) to rotate.

4. The continuous dehydrogenation furnace for rare alloy powder according to claim 3, characterized in that: The rotary paving mechanism (4) and the vibrating screen material assembly (7) are linked via a linkage unit (8). The linkage unit (8) comprises a driving rod (81) rotatably connected to one side of the inner wall of the furnace body (1). One end of the driving rod (81) passes through the furnace body (1) and extends to the interior of the box body (2). One end of each of the driving rod (81) and the rotating rod (71) is fixed with a pulley (82). The two pulleys (82) are connected via a belt (83). The other end of the driving rod (81) is fixed with a bevel gear 1 (84). The top end of the vertical rod (46) is fixed with a bevel gear 2 (85). The bevel gear 1 (84) is meshed with the bevel gear 2 (85).

5. The continuous dehydrogenation furnace for rare alloy powder according to claim 4, characterized in that: A drawer-type material storage box (11) is provided on the bottom wall of the furnace body (1), a furnace cover (12) is rotatably connected to one side of the top of the furnace body (1) through a hinge, the top of the furnace cover (12) is connected to a feed pipe (13), and one side of the furnace body (1) is connected to an exhaust pipe (14), and valves (15) are installed on both the feed pipe (13) and the exhaust pipe (14).

6. A rare alloy powder continuous dehydrogenation furnace treatment process, characterized by: The continuous dehydrogenation furnace for rare alloy powder according to claim 5 specifically comprises the following steps: Step 1: The alloy powder to be dehydrogenated is introduced into the furnace body (1) through the feed pipe (13), the vacuum pump in the box (2) is started to evacuate the furnace body (1), and an inert gas is further introduced into the furnace body (1) through the feed pipe (13), and the electric heating wire in the furnace body (1) is started to heat and dehydrogenate the alloy powder. At the dehydrogenation temperature, the hydrogen element in the rare alloy powder is released; Step 2: Start the motor (73), the motor (73) rotating rod (71) rotates, and the rotating rod (71) drives the rotary paving mechanism (4) to work through the linkage unit (8). The three groups of paving plates (410) rotate and revolve around the pinion (44) to evenly spread the alloy powder on the top of the sieve plate (3). At the same time, the motor (73) drives the cam (72) to rotate, and the cam (72) drives the sieve plate (3) to vibrate up and down, and the qualified fine alloy powder is dried into the storage box (11) for storage, and the large-particle alloy powder remains on the top of the sieve plate (3); Step 3: Start the three suction pumps (92) to suck the large-particle alloy powder remaining on the sieve plate (3) into the collection box (91) for storage. At the same time, the anti-backflow unit (10) prevents the alloy powder from flowing back. Finally, the storage box (11) is pulled out to take out the qualified alloy powder after dehydrogenation.

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