CN114603148A - Preparation device and preparation method of spherical alloy powder - Google Patents

Abstract

The invention discloses a preparation device and a preparation method of spherical alloy powder, and relates to the technical field of preparation of spherical alloy powder. The preparation device of the spherical alloy powder comprises supporting legs, wherein the top of each supporting leg is fixedly connected with a box body, and the bottom of each box body is connected with a double-layer water-cooling copper crucible through a lifting mechanism. Through setting up a plurality of fixed pipes and swiveling wheel one-to-one, and the diameter of fixed pipe is less relatively, thereby can reduce the undulant range of liquid level, the fluctuation that produces when each swiveling wheel rotates is independent each other, mutual noninterference, thereby make the undulant range of fuse-element liquid level in the fixed pipe littleer, and simultaneously, when the swiveling wheel is high-speed rotatory, can produce an opposite suction to the fuse-element liquid level in the fixed pipe, thereby can reduce the undulant range of liquid level, make the liquid level more steady, and, can guarantee that the fuse-element liquid level in the fixed pipe is in the height of settlement, make the spherical powder particle diameter of guaranteeing the preparation more even.

Description

A kind of preparation device and preparation method of spherical alloy powder

technical field

The invention relates to the technical field of spherical alloy powder preparation, in particular to a preparation device and preparation method of spherical alloy powder.

Background technique

When the existing spherical alloy powder preparation device is used, it includes the following steps: 1. Smelting of alloy ingots: adding titanium ingots or titanium alloy ingots into double-layer water-cooled copper crucibles, then filling with argon gas, and smelting the double-layered ingots through induction coils. The water-cooled copper crucible melts the titanium ingot or titanium alloy ingot; 2. Atomization of molten droplets: After the titanium ingot or titanium alloy ingot is completely melted and the liquid level is stable, the lower end of the rotating wheel is placed under the liquid level of the double-layer water-cooled copper crucible. At the same time, the rotating wheel rotates at high speed, so that the droplets fly out along the parabola and exchange heat with argon under the action of centrifugal force; 3. Powder collection: collect the spherical powder after heat exchange and solidification of the droplets; 4. Powder screening: the spherical powder The finished product is obtained by sieving.

However, in the atomization process of droplet atomization, due to the high-speed rotation of multiple rotating wheels, the melt level in the double-layer water-cooled copper crucible fluctuates violently, resulting in uneven particle size of the prepared spherical powder.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a preparation device and preparation method of spherical alloy powder, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present invention provides the following technical solution: a preparation device for spherical alloy powder, comprising legs, the top of the legs is fixedly connected with a box body, and the bottom of the box body is connected with a double-layer through a lifting mechanism. The water-cooled copper crucible, and the outer side wall of the double-layer water-cooled copper crucible is fixedly sleeved with an induction coil, the inner side wall of the box is fixedly connected with a U-shaped installation plate, and the side wall of the installation plate is connected with a plurality of Rotating wheels arranged in an array, the side wall of the mounting plate is fixedly connected with a first motor, and the output end of the first motor is fixed with one end of the rotating shaft, the inner side wall of the box body is fixedly connected with a support plate, and the support plate is The upper side wall is fixedly inserted with a plurality of fixed pipes arranged in an array, the side walls of each of the fixed pipes are provided with strip-shaped openings, and the rotating wheel is inserted in the strip-shaped openings, and the lower ends of the fixed pipes penetrate through the bottom of the support plate. The lower side wall is fixedly connected with a fixed plate, and the fixed plate slides on the inner side wall of the double-layer water-cooled copper crucible. The side wall of the pipe is provided with a control mechanism for controlling the level of the melt, and a collection mechanism for collecting spherical alloy powder is provided in the box.

Preferably, the lifting mechanism includes a first U-shaped plate and a second U-shaped plate that are fixedly connected to the lower side wall of the box, and a fixing rod is fixedly connected to the side wall of the first U-shaped plate. The wall sleeve is provided with a moving pipe, and the upper end of the moving pipe penetrates the bottom of the box and is fixed with the bottom of the double-layer water-cooled copper crucible. The side wall of the second U-shaped plate is rotatably connected with a threaded rod. The wall is threadedly connected with a threaded sleeve, and the upper end of the threaded sleeve penetrates through the bottom of the box and is fixed with the bottom of the double-layer water-cooled copper crucible. The lower side wall of the second U-shaped plate is fixedly connected with a second motor, and the second motor The output end is fixed with the lower end of the threaded rod.

Preferably, the collection mechanism includes an argon gas pipe fixedly inserted into the upper side wall of the box body, and the side wall of the argon gas pipe is fixedly connected with a solenoid valve, and the lower end of the argon gas pipe penetrates the lower side wall of the box body and is fixedly connected with a solenoid valve. A collection box, and the side wall of the argon gas pipe is fixedly connected with a collection cover arranged in a conical shape, the bottom of the collection box is slidably connected with a collection box, and the side wall of the collection box is fixedly connected with a handle, and the bottom of the collection box is provided with A through hole is fixedly connected with a filter plate in the through hole, and an air outlet pipe is fixedly connected to the lower side wall of the collection box.

Preferably, the air extraction mechanism includes a plurality of fixed plates fixedly connected to the side walls of the support plate and arranged in a plurality of arrays, and the upper end of each fixed plate is fixedly connected with a working box, and the side wall of the working box close to the fixed pipe is fixedly connected with a suction box. The side wall of the working box away from the exhaust pipe is fixedly connected with an exhaust pipe, the lower side wall of the mounting plate is fixedly connected with two symmetrically arranged fixed plates, and the opposite side walls of the two fixed plates are rotatably connected There is a rotating rod, the rotating rod is inserted in the work box, and each work box is connected with a rotating fan through the rotating rod, and the rotation of the rotating rod is driven by a driving mechanism.

Preferably, the driving mechanism includes a driving pulley fixedly connected to one end of the rotating shaft, one end of the rotating rod penetrates the side wall of one of the fixed plates and is fixedly connected with a driven pulley, and the driven pulley and the driving pulley are driven by a belt.

Preferably, the control mechanism includes a moving rod inserted into one of the side walls of the fixed pipe, and the other end of the moving rod is fixedly connected with a moving plate, the moving plate is connected to the upper side wall of the support plate through a reset mechanism, and An installation block is connected to the reset mechanism, and a distance sensor is fixedly connected to the side wall of the installation block.

Preferably, the reset mechanism includes two symmetrically arranged fixed blocks fixedly connected to the side walls of the support plate, and a T-shaped guide rod is inserted into the side wall of each fixed block, and one end of the T-shaped guide rod is connected to the moving plate. The side walls of the T-shaped guide rods are fixed, and the side walls of each T-shaped guide rod are sleeved with springs.

Preferably, a heating ring is fixedly connected to the side wall of each of the fixing tubes.

Preferably, two symmetrically arranged fixing grooves are fixedly connected to the side walls of each of the strip-shaped openings, and the fixing grooves include inclined surfaces.

The present invention also provides a preparation method of spherical alloy powder, comprising the following steps:

S1: start the second motor, the rotation of the second motor drives the rotation of the threaded rod, thereby driving the threaded sleeve and the moving tube to lift, and then drive the double-layer water-cooled copper crucible to lift;

S2: start the first motor, and the rotation of the first motor drives the rotation of the rotating shaft and the rotating wheel;

S3: When the fixed plate slides in the double-layer water-cooled copper crucible, the melt in the double-layer water-cooled copper crucible will be squeezed to rise along a plurality of fixed pipes, so that the lower end of the rotating wheel is placed in the fixed pipes to melt Under the body liquid level, by setting a plurality of fixed tubes to correspond to the rotating wheel one by one, and the diameter of the fixed tubes is relatively small, the amplitude of the fluctuation of the liquid level can be reduced. There are relatively few contacts, which can reduce the fluctuation of the liquid level, and when the fluctuation occurs, the fluctuation range is small due to the small liquid surface area. The fluctuation of the melt level in the fixed tube is smaller, so as to ensure that the particle size of the prepared spherical powder is more uniform;

S4: When the melt in the double-layer water-cooled copper crucible gradually enters the fixed tube, the pressure generated by the melt will push the moving rod to move, and the movement of the moving rod drives the moving plate to move synchronously. At the same time, the spring shrinks, and, through the distance The sensor detects the position information of the moving plate. When the melt reaches the set height, the lifting mechanism is controlled by the distance sensor to stop the lifting of the double-layer water-cooled copper crucible, and when the liquid level in the fixed tube is too high, the lifting mechanism can pass through the lifting mechanism. The double-layer water-cooled copper crucible is lowered to ensure that the liquid level of the melt in the fixed tube is at the set height and the liquid level is constant, that is, it can ensure that the melt in the groove of the outer edge of the rotating wheel during the rotation of the rotating wheel. The amount is more uniform, making the prepared spherical powder more uniform in particle size;

S5: When the rotating shaft rotates, it drives the driving pulley to rotate, the rotation of the driving pulley drives the rotation of the driven pulley and the rotating rod through the belt, and the rotation of the rotating rod drives multiple rotating fans to rotate synchronously, so that the air is exhausted through the exhaust pipe , and discharged through the exhaust pipe, because when the rotating wheel rotates, it will give the melt a forward thrust in the tangential direction of the rotating wheel, and this thrust will cause the liquid level to fluctuate. , which will produce a suction force opposite to the thrust in the tangential direction of the rotating wheel on the melt liquid level in the fixed tube, which can reduce the amplitude of the liquid level fluctuation, make the liquid level more stable, and ensure that the prepared spherical powder has a more uniform particle size;

S6: when the rotating wheel rotates, the molten droplets are caused by centrifugal force to fly out along the parabola;

S7: At the same time, open the solenoid valve, and pass argon gas through the argon gas tube. According to Bernoulli's principle, the pressure in the place with a large flow rate is small, and the pressure in the place with a small flow rate is strong. Therefore, when the argon gas passes through the collection cover, it will make the collection The hood generates suction, so that the spherical powder produced is sucked into the argon gas tube to exchange heat with the argon gas, and the spherical powder after heat exchange and solidification enters the collection box for unified collection, which makes the collection of spherical powder more efficient and more convenient.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The preparation device and preparation method of this spherical alloy powder, by setting a plurality of fixed tubes, during preparation, the double-layer water-cooled copper crucible is moved upward by the lifting mechanism, and when the fixed plate slides in the double-layer water-cooled copper crucible When the melt is squeezed, the melt in the double-layer water-cooled copper crucible will be extruded to rise along a plurality of fixed tubes, so that the lower end of the rotating wheel is placed under the liquid level of the melt in the fixed tube. The wheels correspond one by one, and the diameter of the fixed tube is relatively small, which can reduce the amplitude of the fluctuation of the liquid level. The amplitude is smaller, thereby ensuring that the prepared spherical powder has a more uniform particle size.

(2) The preparation device and preparation method of this spherical alloy powder, by setting up the air extraction mechanism, etc., during preparation, start the first motor, the rotation of the first motor drives the rotation of the rotating shaft and the rotating wheel, and at the same time, drives the active The pulley rotates, the rotation of the driving pulley drives the rotation of the driven pulley and the rotating rod through the belt, and the rotation of the rotating rod drives multiple rotating fans to rotate synchronously, so that the air is extracted through the exhaust pipe and discharged through the exhaust pipe. At the same time, when the exhaust pipe draws air, an opposite suction force will be generated on the melt liquid level in the fixed pipe, which can reduce the amplitude of the liquid level fluctuation, make the liquid level more stable, and ensure that the prepared spherical powder has a more uniform particle size.

(3) The preparation device and preparation method of this spherical alloy powder, by setting the control mechanism, etc., when the melt in the double-layer water-cooled copper crucible gradually enters the fixed tube, the pressure generated by the melt will push the moving rod to move, The movement of the moving rod drives the moving plate to move synchronously. At the same time, the spring shrinks, and the position information of the moving plate is detected by the distance sensor. When the melt reaches the set height, the distance sensor controls the lifting mechanism to stop the double-layer water-cooled copper crucible. When the liquid level in the fixed tube is too high, the double-layer water-cooled copper crucible can be lowered by the lifting mechanism, so as to ensure that the liquid level of the melt in the fixed tube is at the set height, so as to ensure the prepared spherical powder particles. diameter is more uniform.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of another angle of view of the present invention;

3 is a schematic diagram of the internal structure of the box in the present invention;

Fig. 4 is the three-dimensional structure schematic diagram of the mounting plate in the present invention;

Fig. 5 is the internal structure schematic diagram of the working box in the present invention;

Fig. 6 is the enlarged structure schematic diagram of A place in Fig. 1;

Fig. 7 is the enlarged structure schematic diagram of B place in Fig. 2;

Fig. 8 is the enlarged structure schematic diagram of C place in Fig. 3;

Fig. 9 is the enlarged structure schematic diagram of D place in Fig. 4;

Fig. 10 is the enlarged structure schematic diagram of E place in Fig. 5;

FIG. 11 is an enlarged schematic view of the structure at F in FIG. 8 .

In the figure: 1. Outrigger; 2. Lifting mechanism; 201, First U-shaped plate; 202, Fixed rod; 203, Moving pipe; 204, Threaded rod; 205, threaded sleeve; 206, Second motor; Two U-shaped plates; 3. Control mechanism; 301, moving rod; 302, moving plate; 303, mounting block; 304, distance sensor; 4, collecting mechanism; 401, argon gas pipe; 402, solenoid valve; 403, collecting box; 404, collection box; 405, handle; 406, air outlet; 407, through hole; 408, filter plate; 409, collection cover; 5, reset mechanism; 501, fixed block; 502, T-shaped guide rod; 503, spring; 6. Exhaust mechanism; 601, fixed plate; 602, work box; 603, exhaust pipe; 604, exhaust pipe; 605, rotating rod; 606, rotating fan; 7, driving mechanism; 701, driven pulley; 702, Active pulley; 703, belt; 8, heating ring; 9, fixed groove; 10, inclined plane; 11, box body; 12, double-layer water-cooled copper crucible; 13, induction coil; 14, mounting plate; 15, shaft; 16, 17. First motor; 18. Support plate; 19. Fixed pipe; 20. Bar-shaped opening; 21. Fixed plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIGS. 1 to 11 , the present invention provides a device for preparing spherical alloy powder, comprising a leg 1 , a box body 11 is fixedly connected to the top of the leg 1 , and a double layer is connected to the bottom of the box body 11 through a lifting mechanism 2 . The water-cooled copper crucible 12, and the outer side wall of the double-layer water-cooled copper crucible 12 is fixedly sleeved with an induction coil 13, the inner side wall of the box body 11 is fixedly connected with a U-shaped mounting plate 14, and the side wall of the mounting plate 14 passes through the rotating shaft 15. A plurality of rotating wheels 16 arranged in an array are rotatably connected. The rotating wheel 16 is made of 304 stainless steel, and the surface is provided with Y ₂ O ₃ or ZrO or BaZrO ₃ or CaZrO ₃ coating. The outer diameter of the rotating wheel 16 is 30-50 cm. The outer edge of the 16 is provided with a triangular or polygonal slot, and the depth of the slot is 20-100 μm, the number of the rotating wheels 16 is 1-20, and the outer edge of the The depth is 20-100 μm, and the particle size of the powder can be controlled. The side wall of the mounting plate 14 is fixedly connected with the first motor 17, and the output end of the first motor 17 is fixed with one end of the rotating shaft 15, and the inner side wall of the box body 11 is fixedly connected. There is a support plate 18, and the upper side wall of the support plate 18 is fixedly inserted with a plurality of fixed pipes 19 arranged in an array, the side wall of each fixed pipe 19 is provided with a bar-shaped opening 20, and the rotating wheel 16 is inserted in the bar-shaped opening. 20, the lower end of the fixing tube 19 penetrates the lower side wall of the support plate 18 and is fixedly connected with the fixing plate 21, and the fixing plate 21 slides on the inner side wall of the double-layer water-cooled copper crucible 12, and the upper side wall of the supporting plate 18 is provided with a The air extraction mechanism 6 is used to exhaust the liquid level of the melt in the fixed pipe 19, and the side wall of the fixed pipe 19 is provided with a control mechanism 3 for controlling the height of the melt level, and the box 11 is provided with a spherical alloy powder for collecting In the collection mechanism 4, a plurality of fixed pipes 19 are arranged in one-to-one correspondence with the rotating wheels 16, and the diameter of the fixed pipes 19 is relatively small, so that the amplitude of the fluctuation of the liquid level can be reduced. They are independent of each other and do not interfere with each other, so that the fluctuation range of the melt level in the fixed pipe 19 is smaller, and at the same time, when the rotating wheel 16 rotates at a high speed, an opposite suction force will be generated on the melt level in the fixed pipe 19, Therefore, the amplitude of the fluctuation of the liquid level can be reduced, so that the liquid level is more stable, so as to ensure that the prepared spherical powder has a more uniform particle size, and it can ensure that the melt liquid level in the fixed tube 19 is at a set height, so that the prepared spherical powder can be guaranteed to be at a set height. The powder particle size is more uniform.

As shown in FIG. 2 and FIG. 7 , the lifting mechanism 2 includes a first U-shaped plate 201 and a second U-shaped plate 207 fixedly connected to the lower side wall of the box body 11 , and the side wall of the first U-shaped plate 201 is fixedly connected with a The fixed rod 202, the side wall of the fixed rod 202 is sleeved with a moving pipe 203, and the upper end of the moving pipe 203 penetrates the bottom of the box 11 and is fixed with the bottom of the double-layer water-cooled copper crucible 12, and the side wall of the second U-shaped plate 207 A threaded rod 204 is rotatably connected, the side wall of the threaded rod 204 is threaded with a threaded sleeve 205, and the upper end of the threaded sleeve 205 penetrates the bottom of the box 11 and is fixed with the bottom of the double-layer water-cooled copper crucible 12. The second U-shaped plate 207 A second motor 206 is fixedly connected to the lower side wall of the second motor 206, and the output end of the second motor 206 is fixed with the lower end of the threaded rod 204, the second motor 206 is activated, and the rotation of the second motor 206 drives the rotation of the threaded rod 204, thereby driving the thread The sleeve 205 and the moving tube 203 move up and down, thereby driving the double-layer water-cooled copper crucible 12 to move up and down.

As shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 6 , the collecting mechanism 4 includes an argon gas pipe 401 fixedly inserted in the upper side wall of the box body 11 , and the side wall of the argon gas pipe 401 is fixedly connected with a solenoid valve 402 . The lower end of 401 penetrates the lower side wall of the box body 11 and is fixedly connected with a collection box 403, and the side wall of the argon gas pipe 401 is fixedly connected with a collection cover 409 arranged in a conical shape, and the bottom of the collection box 403 is slidably connected with a collection box 404, and The side wall of the collection box 404 is fixedly connected with a handle 405, the bottom of the collection box 404 is provided with a through hole 407, and the through hole 407 is fixedly connected with a filter plate 408, and the lower side wall of the collection box 403 is fixedly connected with an outlet pipe 406, open Solenoid valve 402, the argon gas enters the collection box 403 through the argon production pipe 401, and is discharged through the gas outlet pipe 406, the temperature of the argon gas is -30～-50°C, and the flow rate of the argon gas is 1000～1300ml/min, and through the The air outlet pipe 406 is discharged. According to Bernoulli’s principle, the pressure in the place with a large flow rate is small, and the pressure in the place with a small flow rate is strong, so when the argon gas passes through, it will generate suction on the collection cover 409, so that the spherical powder produced will be sucked into the argon gas pipe 401 and the argon gas will be sucked. Air heat exchange, the spherical powder after heat exchange and solidification enters the collection box 404 for unified collection, so that the collection efficiency of the spherical powder is higher and more convenient.

As shown in FIGS. 5 , 9 and 10 , the air extraction mechanism 6 includes a plurality of fixing plates 601 fixedly connected to the upper side walls of the support plate 18 and arranged in a plurality of arrays, and the upper end of each fixing plate 601 is fixedly connected with a work box 602 . The side wall of 602 close to the fixed pipe 19 is fixedly connected with an exhaust pipe 603, and the side wall of the working box 602 away from the exhaust pipe 603 is fixedly connected with an exhaust pipe 604, and the lower side wall of the mounting plate 14 is fixedly connected with two symmetrically arranged Rotating rods 605 are rotatably connected to the opposite side walls of the two fixing boards 601. The rotating rods 605 are inserted in the working boxes 602, and each working box 602 is rotatably connected with a rotating fan 606 through the rotating rods 605. The rotation of the rotating rod 605 is driven by the driving mechanism 7. During the preparation, the rotating rod 605 and the plurality of rotating fans 606 are driven to rotate synchronously by the driving mechanism 7, so that the air is drawn through the exhaust pipe 603 and passed through the exhaust pipe. 604 is discharged. At this time, when the air suction pipe 603 draws air, an opposite suction force will be generated on the melt liquid level in the fixed pipe 19, thereby reducing the amplitude of the liquid level fluctuation, making the liquid level more stable, thereby ensuring the prepared spherical shape. The powder particle size is more uniform.

As shown in FIG. 5 and FIG. 10 , the driving mechanism 7 includes a driving pulley 702 fixedly connected to one end of the rotating shaft 15 , one end of the rotating rod 605 penetrates the side wall of one of the fixed plates 601 and is fixedly connected with the driven pulley 701 , and the driven pulley 701 is driven The pulley 701 and the driving pulley 702 are driven by the belt 703. During the preparation, the first motor 17 is started. The rotation of the first motor 17 drives the rotation of the rotating shaft 15 and the rotating wheel 16. At the same time, the driving pulley 702 is driven to rotate. The rotation of the pulley 702 drives the rotation of the driven pulley 701 and the rotating rod 605 through the belt 703 .

As shown in FIG. 7 , FIG. 8 and FIG. 11 , the control mechanism 3 includes a moving rod 301 inserted into the side wall of one of the fixed tubes 19 , and the other end of the moving rod 301 is fixedly connected with a moving plate 302 , and the moving plate 302 is reset by The mechanism 5 is connected to the upper side wall of the support plate 18, and the reset mechanism 5 is connected with a mounting block 303, and the side wall of the mounting block 303 is fixedly connected with a distance sensor 304. When the melt in the double-layer water-cooled copper crucible 12 gradually enters the fixed When it is in the tube 19, the pressure generated by the melt will push the moving rod 301 to move, and the movement of the moving rod 301 drives the moving plate 302 to move synchronously. When the melt reaches the set height, the lift mechanism 2 is controlled by the distance sensor 304 to stop the lifting of the double-layer water-cooled copper crucible 12, and when the liquid level in the fixed tube 19 is too high, the lift mechanism 2 The layered water-cooled copper crucible 12 is lowered, so as to ensure that the liquid level of the melt in the fixed tube 19 is at a set height, so as to ensure that the prepared spherical powder has a more uniform particle size.

As shown in FIG. 11 , the reset mechanism 5 includes two symmetrically arranged fixing blocks 501 fixedly connected to the upper side walls of the support plate 18 , and T-shaped guide rods 502 are inserted into the side walls of each fixing block 501 , and the T-shaped guide rods 502 One end of the T-shaped guide rod 502 is fixed with the side wall of the moving plate 302 , and a spring 503 is sleeved on the side wall of each T-shaped guide rod 502 to guide and reset the movement of the moving plate 302 .

As shown in FIG. 8 , a heating ring 8 is fixedly connected to the side wall of each fixed pipe 19 to heat the melt in the fixed pipe 19 to avoid cooling.

As shown in FIG. 4 and FIG. 9 , the side walls of each strip opening 20 are fixedly connected with two symmetrically arranged fixing grooves 9 , and the fixing grooves 9 include inclined surfaces 10 . When the melt level in the fixing pipe 19 is too high , it can enter the fixing groove 9 for temporary storage, so that the height of the melt liquid level in the fixing pipe 19 is more accurate.

The present invention also provides a preparation method of spherical alloy powder, comprising the following steps:

S1: start the second motor 206, the rotation of the second motor 206 drives the rotation of the threaded rod 204, thereby driving the threaded sleeve 205 and the moving tube 203 to lift, and then drive the double-layer water-cooled copper crucible 12 to lift;

S2: start the first motor 17, and the rotation of the first motor 17 drives the rotation of the rotating shaft 15 and the rotating wheel 16;

S3: When the fixed plate 21 slides in the double-layer water-cooled copper crucible 12, the melt in the double-layer water-cooled copper crucible 12 will be squeezed to rise along the plurality of fixed tubes 19, thereby making the lower end of the rotating wheel 16 It is placed under the liquid level of the melt in the fixed tube 19, and a plurality of fixed tubes 19 are arranged in one-to-one correspondence with the rotating wheel 16, and the diameter of the fixed tubes 19 is relatively small, so that the amplitude of the fluctuation of the liquid level can be reduced. The diameter of the liquid surface is relatively small, and the contact between the melt and the rotating wheel 16 is relatively small, which can reduce the fluctuation of the liquid level. Moreover, when the fluctuation occurs, due to the small liquid surface area, the generated fluctuation range is small. At the same time, each rotating wheel 16 The fluctuations generated during rotation are independent of each other and do not interfere with each other, so that the amplitude of the fluctuation of the melt level in the fixed tube 19 is smaller, thereby ensuring that the prepared spherical powder has a more uniform particle size;

S4: When the melt in the double-layer water-cooled copper crucible 12 gradually enters the fixed tube 19, the pressure generated by the melt will push the moving rod 301 to move, and the movement of the moving rod 301 drives the moving plate 302 to move synchronously. At the same time, the spring 503 and the distance sensor 304 detects the position information of the moving plate 302. When the melt reaches the set height, the distance sensor 304 controls the elevating mechanism 2 to stop lifting the double-layer water-cooled copper crucible 12. When the liquid level in 19 is too high, the double-layer water-cooled copper crucible 12 can be lowered by the lifting mechanism 2, so as to ensure that the liquid level of the melt in the fixed tube 19 is at the set height and the liquid level height is constant. During the rotation of the rotating wheel 16, the amount of melt in the grooves on the outer edge of the rotating wheel 16 is more uniform, so that the particle size of the prepared spherical powder is more uniform;

S5: when the rotating shaft 15 rotates, the driving pulley 702 is driven to rotate, the rotation of the driving pulley 702 drives the rotation of the driven pulley 701 and the rotating rod 605 through the belt 703, and the rotation of the rotating rod 605 drives a plurality of rotating fans 606 to rotate synchronously, Therefore, the air is pumped through the exhaust pipe 603 and discharged through the exhaust pipe 604, because when the rotating wheel 16 rotates, it will give the melt a forward thrust in the tangential direction of the rotating wheel 16, and this thrust will cause the liquid level to fluctuate. Therefore, when the air is drawn through the air extraction pipe 603 at this time, a suction force opposite to the thrust in the tangential direction of the rotating wheel 16 will be generated on the melt liquid level in the fixed pipe 19, so that the amplitude of the liquid level fluctuation can be reduced, so that the liquid level More stable, so as to ensure that the prepared spherical powder has a more uniform particle size;

S6: when the rotary wheel 16 is rotated, the molten droplet is caused by centrifugal force to fly out along the parabola;

S7: At the same time, open the solenoid valve 402, and pass argon gas through the argon gas pipe 401. According to Bernoulli’s principle, the pressure in the place with a large flow rate is small, and the pressure in the place with a small flow rate is strong. Therefore, when the argon gas passes through the collection cover 409, It will make the collection cover 409 generate suction, so that the spherical powder produced will be sucked into the argon gas pipe 401 to exchange heat with the argon gas. ,More convenient.

Claims (10)

1. The utility model provides a preparation facilities of spherical alloy powder, includes landing leg (1), the top fixedly connected with box (11) of landing leg (1), its characterized in that: the bottom of the box body (11) is connected with a double-layer water-cooling copper crucible (12) through a lifting mechanism (2), the outer side wall of the double-layer water-cooling copper crucible (12) is fixedly sleeved with an induction coil (13), the inner side wall of the box body (11) is fixedly connected with a mounting plate (14) with a U-shaped arrangement, the side wall of the mounting plate (14) is rotatably connected with a rotating wheel (16) with a plurality of array arrangements through a rotating shaft (15), the side wall of the mounting plate (14) is fixedly connected with a first motor (17), the output end of the first motor (17) is fixed with one end of the rotating shaft (15), the inner side wall of the box body (11) is fixedly connected with a support plate (18), the upper side wall of the support plate (18) is fixedly inserted with a plurality of fixed tubes (19) with the array arrangements, strip-shaped openings (20) are arranged on the side wall of each fixed tube (19), and the rotating wheel (16) is inserted in the strip-shaped openings (20), the lower extreme of fixed pipe (19) runs through the lower lateral wall and fixedly connected with fixed disk (21) of backup pad (18), and fixed disk (21) slides at the inside wall of double-deck water-cooling copper crucible (12), the last lateral wall of backup pad (18) is provided with and is used for carrying out convulsions to fixed pipe (19) interior fuse-element liquid level air drafting mechanism (6), and the lateral wall of fixed pipe (19) is provided with and is used for controlling control mechanism (3) of fuse-element liquid level height, be provided with in box (11) and be used for carrying out collection mechanism (4) of collecting to spherical alloy powder.

2. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: the lifting mechanism (2) comprises a first U-shaped plate (201) and a second U-shaped plate (207) which are fixedly connected with the lower side wall of the box body (11) and are symmetrically arranged, a fixed rod (202) is fixedly connected with the side wall of the first U-shaped plate (201), a movable pipe (203) is sleeved on the side wall of the fixed rod (202), the upper end of the movable pipe (203) penetrates through the bottom of the box body (11) and is fixed with the bottom of the double-layer water-cooled copper crucible (12), the side wall of the second U-shaped plate (207) is rotatably connected with a threaded rod (204), the side wall of the threaded rod (204) is in threaded connection with a threaded sleeve (205), the upper end of the thread sleeve (205) penetrates through the bottom of the box body (11) and is fixed with the bottom of the double-layer water-cooled copper crucible (12), the lower side wall of the second U-shaped plate (207) is fixedly connected with a second motor (206), and the output end of the second motor (206) is fixed with the lower end of the threaded rod (204).

3. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: collect mechanism (4) including fixed inserting establish on box (11) side wall argon pipe (401), and the lateral wall fixedly connected with solenoid valve (402) of argon pipe (401), the lower extreme of argon pipe (401) runs through lower lateral wall and fixedly connected with collecting box (403) of box (11), and collection cover (409) that the lateral wall fixedly connected with toper of argon pipe (401) set up, the bottom sliding connection of collecting box (403) has collection box (404), and collects lateral wall fixedly connected with handle (405) of box (404), through-hole (407) have been seted up to the bottom of collecting box (404), and fixedly connected with filter (408) in through-hole (407), the lower lateral wall fixedly connected with outlet duct (406) of collecting box (403).

4. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: air drafting mechanism (6) include fixed plate (601) that a plurality of arrays of fixed connection lateral wall set up on backup pad (18), and upper end fixedly connected with work box (602) of each fixed plate (601), work box (602) are close to lateral wall fixedly connected with exhaust column (603) of fixed pipe (19), and work box (602) keep away from the lateral wall fixedly connected with exhaust pipe (604) of exhaust column (603), fixed plate (601) that two symmetries of lower lateral wall fixedly connected with of mounting panel (14) set up, and two relative lateral walls of fixed plate (601) rotate and are connected with dwang (605), dwang (605) are inserted and are established in work box (602), and rotate through dwang (605) in each work box (602) and are connected with and change fan (606), the rotation of dwang (605) drives through actuating mechanism (7).

5. The apparatus for preparing a spherical alloy powder according to claim 4, wherein: the driving mechanism (7) comprises a driving belt pulley (702) fixedly connected to one end of the rotating shaft (15), one end of the rotating rod (605) penetrates through the side wall of one fixing plate (601) and is fixedly connected with a driven belt pulley (701), and the driven belt pulley (701) and the driving belt pulley (702) are driven through a belt (703).

6. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: the control mechanism (3) comprises a moving rod (301) inserted into the side wall of one of the fixed pipes (19), the other end of the moving rod (301) is fixedly connected with a moving plate (302), the moving plate (302) is connected with the upper side wall of the supporting plate (18) through a reset mechanism (5), the reset mechanism (5) is connected with an installation block (303), and the side wall of the installation block (303) is fixedly connected with a distance sensor (304).

7. The apparatus for preparing a spherical alloy powder according to claim 6, wherein: the reset mechanism (5) comprises two symmetrically-arranged fixing blocks (501) fixedly connected to the upper side wall of the supporting plate (18), a T-shaped guide rod (502) is inserted into the side wall of each fixing block (501), one end of each T-shaped guide rod (502) is fixed to the side wall of the moving plate (302), and a spring (503) is sleeved on the side wall of each T-shaped guide rod (502).

8. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: the side wall of each fixed pipe (19) is fixedly connected with a heating ring (8).

9. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: each lateral wall fixedly connected with two fixed slots (9) that the symmetry set up of bar opening (20), and fixed slot (9) include inclined plane (10).

10. A method for preparing spherical alloy powder is characterized in that: the method comprises the following steps:

s1, starting a second motor (206), wherein the rotation of the second motor (206) drives a threaded rod (204) to rotate, so as to drive a threaded sleeve (205) and a moving pipe (203) to lift, and further drive a double-layer water-cooled copper crucible (12) to lift;

s2, starting the first motor (17), wherein the rotation of the first motor (17) drives the rotation shaft (15) and the rotating wheel (16) to rotate;

s3, when the fixed disk (21) slides in the double-layer water-cooled copper crucible (12), the melt in the double-layer water-cooled copper crucible (12) is extruded and rises along a plurality of fixed tubes (19), so that the lower end of the rotating wheel (16) is arranged below the melt liquid level in the fixed tubes (19), the fixed tubes (19) and the rotating wheel (16) are arranged in a one-to-one correspondence manner, the diameter of the fixed tubes (19) is relatively small, the fluctuation range of the liquid level can be reduced, meanwhile, the fluctuation generated when the rotating wheel (16) rotates are mutually independent and do not interfere with each other, the fluctuation range of the liquid level of the melt in the fixed tubes (19) is smaller, and the particle size of the prepared spherical powder is more uniform;

s4, when the melt in the double-layer water-cooled copper crucible (12) gradually enters the fixed tube (19), the pressure generated by the melt can push the moving rod (301) to move, the moving rod (301) moves to drive the moving plate (302) to move synchronously, meanwhile, the spring (503) contracts, the position information of the moving plate (302) is detected through the distance sensor (304), when the melt reaches the set height, the lifting mechanism (2) is controlled through the distance sensor (304) to stop lifting the double-layer water-cooled copper crucible (12), and when the liquid level in the fixed tube (19) is overhigh, the lifting mechanism (2) can be used for descending the double-layer water-cooled copper crucible (12), so that the liquid level of the melt in the fixed tube (19) is ensured to be at the set height, and the particle size of the prepared spherical powder is ensured to be more uniform;

s5, when the rotating shaft (15) rotates, the driving belt pulley (702) is driven to rotate, the driving belt pulley (702) rotates to drive the driven belt pulley (701) and the rotating rod (605) to rotate through the belt (703), the rotating rod (605) rotates to drive the rotating fans (606) to synchronously rotate, so that air is pumped through the air exhaust pipe (603), and the air is exhausted through the exhaust pipe (604), at the moment, when the air exhaust pipe (603) exhausts air, opposite suction is generated on the melt liquid level in the fixed pipe (19), so that the fluctuation range of the liquid level can be reduced, the liquid level is more stable, and the particle size of the prepared spherical powder is more uniform;

s6, when the rotating wheel (16) rotates, the molten drops fly out along a parabola under the action of centrifugal force;

and S7, simultaneously, when argon passes through, suction is generated on the collecting cover (409), so that the generated spherical powder is sucked into the argon pipe (401) to exchange heat with the argon, and the spherical powder after heat exchange and solidification enters the collecting box (404) to be collected uniformly.

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