Device for improving vacuum gas atomization powder production efficiency

Abstract

The utility model belongs to the technical field of vacuum gas atomization pulverization, and particularly relates to a device for improving vacuum gas atomization pulverization production efficiency, which comprises a smelting furnace and a material preparation bin, the smelting furnace is hollow, the upper part of the smelting furnace is open, a furnace cover is detachably connected to the opening of the upper part of the smelting furnace, a vacuum suction pump is arranged on the furnace cover, and the material preparation bin is connected with the smelting furnace. A suction opening of the vacuum suction pump extends into the smelting furnace, and an electric heating crucible device is arranged in the smelting furnace. The material preparation bin is installed on the side edge of the smelting furnace and has the moving and dumping functions, before smelting, raw material components are prepared and stored in the material preparation bin, part of the prepared raw materials are added into the smelting furnace, the rest of the prepared raw materials are placed in the standby bin, and the raw materials in the material preparation bin are added while smelting is conducted through the smelting furnace. In this way, under the condition that the vacuum environment is not damaged, feeding can be conducted in the smelting process, the vacuum smelting powder making efficiency is improved, meanwhile, manual feeding control is not needed, and labor force is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum air atomization powder making, in particular to a device for improving the production efficiency of vacuum air atomization powder making. Background Art

[0002] The vacuum induction atomization powder making furnace uses induction heating to melt the metal raw materials, then pours the molten liquid into a heat-insulating crucible, and uses the kinetic energy obtained by the rapid expansion of high-pressure gas to blow away the molten steel to obtain metal powder. For example, in some 3D printing, the metal printing material needs to be made into powder.

[0003] In actual production, affected by the shape and size of the materials, the amount of materials added to the vacuum induction gas atomization powder making furnace is far lower than the set capacity of the vacuum induction gas atomization powder making furnace. For example, a 250KG vacuum gas atomization melting furnace can melt up to 180-200KG. Because multiple components are often required during melting, and the raw materials are usually bulk materials, it is difficult to avoid a large number of gaps during the charging process of the vacuum induction gas atomization powder making furnace, and the loading of raw materials is limited. At this time, only 120-150KG can be melted. In this case, more furnaces are required to melt the same amount of materials. The traditional vacuum melting gas atomization equipment feeding device cannot feed materials in the vacuum melting state, which increases the weight of the finished product in a single furnace. Utility Model Content

[0004] The utility model aims to provide a device for improving the production efficiency of vacuum gas atomization powder making, so as to solve the problem that the traditional vacuum melting gas atomization equipment mentioned in the background technology cannot be charged in the vacuum melting state.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a device for improving the production efficiency of vacuum gas atomization powder making, comprising:

[0006] A smelting furnace, wherein the smelting furnace is hollow and has an upper opening, a furnace cover is detachably connected to the upper opening of the smelting furnace, a vacuum suction pump is provided on the furnace cover, a suction port of the vacuum suction pump extends to the interior of the smelting furnace, an electric crucible device is provided inside the smelting furnace, a powder making device matched with the electric crucible device is provided on the smelting furnace, and a tundish is provided on the lower side of the interior of the smelting furnace;

[0007] A material preparation bin, which is hollow and open at the top, is located inside the smelting furnace, a rotatable connecting seat is connected to the lower part of one side wall of the material preparation bin, the material preparation bin is connected to the inner wall of the smelting furnace through the rotatable connecting seat, a hydraulic cylinder 1 is rotatably connected inside the smelting furnace, the telescopic end of the hydraulic cylinder 1 is rotatably connected to the lower surface of the material preparation bin, a support shaft is rotatably connected inside the material preparation bin, a baffle is provided on the outer wall of the support shaft, a support bar is provided inside the material preparation bin close to the smelting furnace, and the positions of the support bar and the baffle correspond.

[0008] Preferably, the electric heating crucible device comprises a rotating rod connected to the inner wall of the smelting furnace, a crucible fixed to the outer wall of the rotating rod, and an electromagnetic heating device arranged on the outer wall of the crucible.

[0009] Preferably, a first limit column and a second limit column are provided inside the smelting furnace, and the first limit column and the second limit column are located on both sides of the rotating rod. A shift rod is provided on the outer wall of the rotating rod, and the shift rod corresponds to the position of the first limit column and the second limit column. When the shift rod contacts the first limit column, the crucible is vertical and the opening of the crucible faces upward; when the shift rod contacts the second limit column, the crucible is horizontal and the opening of the crucible faces the front, and at this time the opening of the crucible corresponds to the position of the intermediate package.

[0010] Preferably, one end of the rotating rod passes through the smelting furnace, a driving motor is installed on the outer wall of the smelting furnace, and the output shaft of the driving motor is connected to the end of the rotating rod passing through the outside of the smelting furnace.

[0011] Preferably, the front and rear sides of the smelting furnace are rotatably connected to hydraulic cylinder 2 via a pin shaft, the telescopic end of the hydraulic cylinder 2 is rotatably connected to the outer wall of the furnace cover via a pin shaft, the left side of the furnace cover is connected to a rotating seat, the left side wall of the smelting furnace is connected to a support block, and the support block and the rotating seat are rotatably connected via a pin shaft.

[0012] Preferably, it also includes an installation outer frame, which includes two installation bearing plates and legs connected to the lower sides of the two installation bearing plates, the two installation bearing plates correspond to each other up and down, the upper legs are supported on the lower installation bearing plate, the smelting furnace is supported on the upper installation bearing plate, and a climbing opening is opened on the upper installation bearing plate, and an escalator is provided at the climbing opening.

[0013] Preferably, the powder making device includes an atomizing cylinder arranged at the lower side of the smelting furnace, the atomizing cylinder is connected to the lower side of the tundish, the lower side of the atomizing cylinder is closed, the lower side of the atomizing cylinder is connected to a powder discharge pipe, and the outside of the atomizing cylinder is connected to a high-pressure inert gas supply system.

[0014] Preferably, the high-pressure inert gas supply system includes a high-pressure inert gas storage tank, an inert gas output pipe is connected to the outer wall of the high-pressure inert gas storage tank, one end of the inert gas output pipe is connected to the atomizing tube, and a valve is provided on the pipeline of the inert gas output pipe.

[0015] Preferably, a guide tube is provided in the middle of the inner cavity of the atomizing tube, one end of the inert gas output tube located in the atomizing tube is connected to an inert gas dispersion ring, the inert gas dispersion ring is located on the periphery of the guide tube, gas outlets are evenly opened on the surface of the inert gas dispersion ring, and the upper end of the guide tube is connected to the intermediate package.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] A stock preparation bin is installed on the inner side of the smelting furnace, which has a dumping function. Before smelting, the raw material components are configured and stored in the stock preparation bin. Part of the configured raw materials are first added to the smelting furnace, and the remaining part is placed in the stock preparation bin. The raw materials in the stock preparation bin are added to the smelting furnace while smelting. In this way, the material can be added during the smelting process without destroying the vacuum environment, which improves the efficiency of vacuum smelting and powder making. At the same time, there is no need for manual control of the material addition, which reduces labor.

[0018] A rotatable baffle is set. When raw materials are added to the preparation bin, the baffle is vertical and does not affect the addition of raw materials. When the raw materials are poured out, the baffle is rotated on the support bar to block a part of the upper opening of the preparation bin, thereby reducing the flow rate of raw material output, making it convenient to control the amount of raw material output, and at the same time having a certain blocking effect on the molten and splashing raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the internal structure of the smelting furnace of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the atomizer tube of the utility model;

[0022] Figure 4 This is a structural schematic diagram of the material preparation bin, hydraulic cylinder 1, slide rod, and rotating connecting seat of the utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the material preparation bin of the utility model;

[0024] Figure 6 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A.

[0025] In the figure: 1. Install the bearing plate; 2. Support legs; 3. Melting furnace; 4. Furnace cover; 5. Vacuum suction pump; 6. Rotating rod; 7. Crucible; 8. Electromagnetic heating device; 9. Driving motor; 10. Push rod; 11. First limiting column; 12. Second limiting column; 13. Tundish; 14. Atomizing tube; 15. Guide pipe; 16. Inert gas dispersion ring; 17. Inert gas output pipe; 18. Valve; 19. High-pressure inert gas storage tank; 20. Hydraulic cylinder 2; 21. Preparation bin; 22. Hydraulic cylinder 1; 23. Powder discharge pipe; 24. Rotating connecting seat; 25. Support shaft; 26. Baffle; 27. Support bar; 28. Rotating seat; 29. ​​Support block. DETAILED DESCRIPTION

[0026] 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.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Embodiment 1:

[0029] See also Figure 1-6 , the utility model provides a technical solution: a device for improving the production efficiency of vacuum gas atomization powder making, comprising: a smelting furnace 3, a material preparation bin 21;

[0030] The smelting furnace 3 is hollow and has an upper opening. A furnace cover 4 is detachably connected to the upper opening of the smelting furnace 3. A vacuum suction pump 5 is provided on the furnace cover 4. The suction port of the vacuum suction pump 5 extends to the interior of the smelting furnace 3. An electric crucible device is provided inside the smelting furnace 3. A powder making device matched with the electric crucible device is provided on the smelting furnace 3. A tundish 13 is provided on the lower side of the interior of the smelting furnace 3. The material preparation bin 21 is hollow and has an upper opening. The material preparation bin 21 is located inside the smelting furnace 3. A rotatable connecting seat 24 is connected to the lower part of one side wall of the bin 21, and the preparation bin 21 is connected to the inner wall of the smelting furnace 3 through the rotatable connecting seat 24. A hydraulic cylinder 22 is rotatably connected inside the smelting furnace 3, and the telescopic end of the hydraulic cylinder 22 is rotatably connected to the lower surface of the preparation bin 21. A support shaft 25 is rotatably connected inside the preparation bin 21, and a baffle 26 is provided on the outer wall of the support shaft 25. A support bar 27 is provided inside the preparation bin 21 close to the smelting furnace 3, and the position of the support bar 27 corresponds to that of the baffle 26.

[0031] Embodiment 2:

[0032] See also Figure 1-6 The utility model provides a technical solution based on the first embodiment: the electric crucible device includes a rotating rod 6 connected to the inner wall of the smelting furnace 3, a crucible 7 fixed on the outer wall of the rotating rod 6, and an electromagnetic heating device 8 arranged on the outer wall of the crucible 7.

[0033] Analyzing the above contents: the crucible 7 and the electromagnetic heating device 8 can be rotated by the setting of the rotating rod 6 to pour out the molten raw materials.

[0034] Embodiment three:

[0035] See also Figure 1-6 The utility model provides a technical solution based on the second embodiment: the interior of the smelting furnace 3 is provided with a first limiting column 11 and a second limiting column 12, the first limiting column 11 and the second limiting column 12 are located on both sides of the rotating rod 6, and a lever 10 is provided on the outer wall of the rotating rod 6, the lever 10 corresponds to the position of the first limiting column 11 and the second limiting column 12, when the lever 10 contacts the first limiting column 11, the crucible 7 is vertical, and the opening of the crucible 7 faces upward; when the lever 10 contacts the second limiting column 12, the crucible 7 is horizontal, and the opening of the crucible 7 faces the front side, at this time, the opening of the crucible 7 corresponds to the position of the middle bag 13.

[0036] Analysis of the above content: Through the cooperation of the first limiting column 11 and the second limiting column 12 and the lever 10, the rotation angle of the crucible 7 is limited, so as to avoid the crucible 7 from rotating too much, and facilitate the rapid positioning of the crucible 7.

[0037] Embodiment 4:

[0038] See also Figure 1-6 The utility model provides a technical solution based on the third embodiment: one end of the rotating rod 6 passes through the smelting furnace 3, a driving motor 9 is installed on the outer wall of the smelting furnace 3, and the output shaft of the driving motor 9 is connected to the end of the rotating rod 6 passing through the outside of the smelting furnace 3.

[0039] Analysis of the above content: By driving the rotating rod 6 to rotate through the driving motor 9, it can be easily operated from the outside.

[0040] Embodiment five:

[0041] See also Figure 1-6 The utility model provides a technical solution based on the first embodiment: the front and rear sides of the smelting furnace 3 are rotatably connected with the hydraulic cylinder 20 through a pin shaft, the telescopic end of the hydraulic cylinder 20 is rotatably connected with the outer wall of the furnace cover 4 through a pin shaft, the left side of the furnace cover 4 is connected with a rotating seat 28, and the left side wall of the smelting furnace 3 is connected with a support block 29, and the support block 29 is rotatably connected to the rotating seat 28 through a pin shaft.

[0042] Analysis of the above content: When the furnace cover 4 is opened, the telescopic end of the hydraulic cylinder 20 pushes the furnace cover 4 to rotate counterclockwise, and the furnace cover 4 drives the rotating seat 28 to rotate around the support block 29 until the furnace cover 4 is in a vertical state.

[0043] Embodiment six:

[0044] See also Figure 1-6 The utility model provides a technical solution based on the first embodiment: it also includes an outer mounting frame, the outer mounting frame includes two mounting bearing plates 1 and legs 2 connected to the lower sides of the two mounting bearing plates 1, the two mounting bearing plates 1 correspond to each other up and down, the upper legs 2 are supported on the lower mounting bearing plate 1, the smelting furnace 3 is supported on the upper mounting bearing plate 1, a climbing opening is opened on the upper mounting bearing plate 1, and an escalator is provided at the climbing opening.

[0045] Analysis of the above content: Two mounting bearing plates 1 and legs 2 form an external frame to facilitate workers to get on and off.

[0046] Embodiment seven:

[0047] See also Figure 1-6The utility model provides a technical solution based on the first embodiment: the powder making device includes an atomizing barrel 14 arranged at the lower side of the smelting furnace 3, the atomizing barrel 14 is connected to the lower side of the tundish 13, the lower side of the atomizing barrel 14 is closed, the lower side of the atomizing barrel 14 is connected to a powder discharge pipe 23, the outside of the atomizing barrel 14 is connected to a high-pressure inert gas supply system, the high-pressure inert gas supply system includes a high-pressure inert gas storage tank 19, and the outer wall of the high-pressure inert gas storage tank 19 is connected to an inert gas An inert gas output pipe 17 is provided, one end of which is connected to the atomizing tube 14, a valve 18 is provided on the pipeline of the inert gas output pipe 17, a guide pipe 15 is provided in the middle of the inner cavity of the atomizing tube 14, one end of the inert gas output pipe 17 located in the atomizing tube 14 is connected to an inert gas dispersion ring 16, the inert gas dispersion ring 16 is located on the periphery of the guide pipe 15, gas outlets are evenly opened on the surface of the inert gas dispersion ring 16, and the upper end of the guide pipe 15 is connected to the tundish 13.

[0048] Analysis of the above content: After the crucible 7 is turned over, the molten raw material in the crucible 7 falls into the atomizing tube 14, and the raw material continues to fall in the atomizing tube 14. The valve 18 is opened, and the high-pressure inert gas in the high-pressure inert gas storage tank 19 is output through the inert gas output pipe 17 and the gas outlet on the inner side of the inert gas dispersion ring 16. The high-pressure inert gas blows the falling molten raw material, so that the molten raw material is quickly dispersed and cooled into powder.

[0049] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for improving the production efficiency of vacuum gas atomization powder making, characterized in that: include: A smelting furnace (3), wherein the smelting furnace (3) is hollow and has an upper opening, a furnace cover (4) is detachably connected to the upper opening of the smelting furnace (3), a vacuum suction pump (5) is provided on the furnace cover (4), a suction port of the vacuum suction pump (5) extends to the interior of the smelting furnace (3), an electric crucible device is provided inside the smelting furnace (3), a powder making device matched with the electric crucible device is provided on the smelting furnace (3), and a tundish (13) is provided on the lower side of the interior of the smelting furnace (3); A material preparation bin (21), the material preparation bin (21) is hollow and has an opening at the top, the material preparation bin (21) is located inside the smelting furnace (3), a rotatable connection seat (24) is connected to the lower part of one side wall of the material preparation bin (21), the material preparation bin (21) is connected to the inner wall of the smelting furnace (3) through the rotatable connection seat (24), the inside of the smelting furnace (3) is rotatably connected to a hydraulic cylinder 1 (22), the telescopic end of the hydraulic cylinder 1 (22) is rotatably connected to the lower surface of the material preparation bin (21), the inside of the material preparation bin (21) is rotatably connected to a support shaft (25), a baffle (26) is provided on the outer wall of the support shaft (25), and a support bar (27) is provided inside the material preparation bin (21) near the smelting furnace (3), and the positions of the support bar (27) and the baffle (26) correspond.

2. A device for improving the production efficiency of vacuum gas atomization powder making according to claim 1, characterized in that: The electric heating crucible device comprises a rotating rod (6) connected to the inner wall of a smelting furnace (3), a crucible (7) fixed to the outer wall of the rotating rod (6), and an electromagnetic heating device (8) arranged on the outer wall of the crucible (7).

3. A device for improving the production efficiency of vacuum gas atomization powder making according to claim 2, characterized in that: A first limiting column (11) and a second limiting column (12) are arranged inside the smelting furnace (3), the first limiting column (11) and the second limiting column (12) are located on both sides of the rotating rod (6), and a shifting rod (10) is arranged on the outer wall of the rotating rod (6), the shifting rod (10) corresponds to the position of the first limiting column (11) and the second limiting column (12), when the shifting rod (10) contacts the first limiting column (11), the crucible (7) is vertical, and the opening of the crucible (7) faces upward; when the shifting rod (10) contacts the second limiting column (12), the crucible (7) is horizontal, and the opening of the crucible (7) faces the front side, at which time the opening of the crucible (7) corresponds to the position of the tundish (13).

4. A device for improving the production efficiency of vacuum gas atomization powder making according to claim 3, characterized in that: One end of the rotating rod (6) passes through the smelting furnace (3), a driving motor (9) is installed on the outer wall of the smelting furnace (3), and the output shaft of the driving motor (9) is connected to the end of the rotating rod (6) passing through the outside of the smelting furnace (3).

5. A device for improving the production efficiency of vacuum gas atomization powder making according to claim 4, characterized in that: The front and rear sides of the smelting furnace (3) are both rotatably connected to hydraulic cylinder 2 (20) via a pin shaft, the telescopic end of the hydraulic cylinder 2 (20) is rotatably connected to the outer wall of the furnace cover (4) via a pin shaft, the left side of the furnace cover (4) is connected to a rotating seat (28), the left side wall of the smelting furnace (3) is connected to a support block (29), and the support block (29) and the rotating seat (28) are rotatably connected via a pin shaft.

6. A device for improving the production efficiency of vacuum gas atomization powder making according to claim 5, characterized in that: The invention also comprises an external mounting frame, wherein the external mounting frame comprises two mounting support plates (1) and legs (2) connected to the lower sides of the two mounting support plates (1), the two mounting support plates (1) correspond to each other up and down, the legs (2) on the upper side are supported on the mounting support plate (1) on the lower side, the smelting furnace (3) is supported on the mounting support plate (1) on the upper side, and a climbing opening is provided on the mounting support plate (1) on the upper side, and an escalator is provided at the climbing opening.

7. A device for improving the production efficiency of vacuum gas atomization powder making according to claim 6, characterized in that: The powder making device comprises an atomizing tube (14) arranged at the lower side of the smelting furnace (3), the atomizing tube (14) is connected to the lower side of the tundish (13), the lower side of the atomizing tube (14) is closed, the lower side of the atomizing tube (14) is connected to a powder discharge pipe (23), and the outside of the atomizing tube (14) is connected to a high-pressure inert gas supply system.

8. The device for improving the production efficiency of vacuum gas atomization powder making according to claim 7, characterized in that: The high-pressure inert gas supply system comprises a high-pressure inert gas storage tank (19), an inert gas output pipe (17) is connected to the outer wall of the high-pressure inert gas storage tank (19), one end of the inert gas output pipe (17) is connected to the atomizing tube (14), and a valve (18) is arranged on the pipeline of the inert gas output pipe (17).

Images