Smelting equipment for alloy powder production

Abstract

The invention belongs to the technical field of metal smelting, and discloses smelting equipment for alloy powder production, which is characterized in that a feeding gap is annularly formed in a secondary smelting furnace, and the secondary smelting furnace is reinforced in the feeding gap through at least two pairs of reinforcing points; the primary melting furnace is fixedly installed on the upper portion of the secondary melting furnace, and a C-shaped curled edge is integrally arranged on the upper end face of the primary melting furnace. The electromagnetic induction coil A is assembled outside the primary melting furnace; the electromagnetic induction coil B is assembled outside the secondary melting furnace; a supporting frame is fixedly installed on the top of the base, and the upper end of the supporting frame is fixedly connected with the lower portion of the secondary melting furnace. According to the method, the second smelting process is added, and in the second smelting process, an additional independent heating step for the materials in the middle of the furnace body is added, so that the alloy material melting completeness and thoroughness are improved and guaranteed, and finally the alloy powder preparation efficiency is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal smelting, more particularly, to a smelting equipment for alloy powder production. BACKGROUND

[0002] Alloy types manufactured by powder metallurgy are used in a wide range of applications, such as soldering and brazing alloys for the electronics industry, nickel, cobalt and iron-containing high-temperature alloys for aircraft, hydrogen storage alloys and magnetic alloys, and reactive alloys for sputter target production, such as titanium.

[0003] The general process for the production of alloy powders is as follows: the alloy is melted in a furnace, the molten metal is poured through a preheated tundish into a gas injection pipe system, after which the produced metal powder is solidified in an atomization tower, the powder-gas mixture is transported through a transport pipe to a cyclone separator, and finally the metal powder is collected in a sealed container located directly below the cyclone separator.

[0004] In the current technology, the melting of the alloy in the furnace is generally assisted by an external electromagnetic induction coil. Due to the thickness and diameter of the furnace body, there are still some metal residues in the middle of the molten material in the furnace, which can cause incomplete melting and affect the efficiency of alloy powder production. SUMMARY

[0005] The purpose of the present application is to solve the problem of metal residues in the middle of the molten material in the furnace due to the thickness and diameter of the furnace body in the prior art, and to provide a smelting equipment for alloy powder production.

[0006] To achieve the above purpose, the present application adopts the following technical scheme: A smelting equipment for alloy powder production, comprising: A secondary melting furnace, a material passing gap is formed in the inside of the secondary melting furnace in a ring shape, and the secondary melting furnace is reinforced by at least two pairs of reinforcing points in the material passing gap; A primary melting furnace, the primary melting furnace is fixedly installed on the upper part of the secondary melting furnace, and a C-shaped hem is integrally arranged on the upper end surface of the primary melting furnace; An electromagnetic induction coil A is arranged outside the primary melting furnace, and an electromagnetic induction coil B is arranged outside the secondary melting furnace; A base, a support frame is fixedly installed on the top of the base, and the upper end of the support frame is fixedly connected with the lower part of the secondary melting furnace; The pushing disc is arranged at intervals along the height direction of the secondary melting furnace, and a push-pull mechanism matched with the pushing disc is arranged in the support frame to vertically move the pushing disc along the height direction of the secondary melting furnace, push the middle part of the molten material in the secondary melting furnace upwards, and push it into the material moving gap for additional heating treatment. The rectangular frame is fixedly installed between the secondary melting furnace and the primary melting furnace through a pair of connecting seats, and two gate plates are connected to the rectangular frame through a pair of opening mechanisms, which are used to realize the withdrawal of the two gate plates in opposite directions and the abutting of the two gate plates in the middle part. The pressure-sensitive assembly is symmetrically installed on the front side of the rectangular frame, and is used to start the push-pull mechanism to vertically move the pushing disc along the height direction of the secondary melting furnace after the two gate plates are withdrawn to the opposite sides.

[0007] Further, the secondary melting furnace is designed in a bullet shape with a smaller upper end and a larger lower end, and the diameter of the pushing disc is smaller than the diameter of the upper end opening of the secondary melting furnace.

[0008] Further, the pair of opening mechanisms comprises two limiting columns symmetrically installed in the rectangular frame, and the two limiting columns are arranged through the two gate plates, respectively. The rectangular frame is symmetrically installed with a pair of elastic recovery assemblies matched with the two gate plates, and the front side of the rectangular frame is fixedly installed with a mounting seat, two rotating shafts are symmetrically installed at the front end of the mounting seat, and a straight gear and a sleeve ring are sequentially and fixedly connected outside each rotating shaft. The front side of the mounting seat is fixedly installed with a servo motor through a motor mounting bracket, and the output end of the servo motor is fixedly connected with the front end of one of the rotating shafts.

[0009] Further, the two sleeve rings are arranged in a diverging manner, and the longitudinal distance between the two sleeve rings is five to ten centimeters.

[0010] Further, the elastic recovery assembly comprises two T-shaped columns which are respectively and slidingly inserted into the left and right ends of the rectangular frame, and the opposite ends of the two T-shaped columns are respectively fixedly connected with the two gate plates.

[0011] Further, the pressure-sensitive assembly comprises two travel switches symmetrically installed on the front side of the rectangular frame, and the opposite ends of the two travel switches are fixedly connected with tabs.

[0012] Further, the push-pull mechanism comprises a vertical column penetratingly arranged in the middle of the secondary melting furnace, the push plate is fixed to the upper end of the vertical column, and the lower end of the vertical column is fixedly connected with a circular table.

[0013] Further, a plurality of discharge channels are circumferentially arranged on the inner bottom of the secondary melting furnace, a discharge pipe is arranged on the outer extension end of each discharge channel, and a discharge valve is arranged on the outer side of the discharge pipe.

[0014] To sum up, the present application has at least one of the following beneficial technical effects: 1. On the basis of the prior art with only one smelting process, a second smelting process is added, and an additional separate heating step for the middle material in the furnace body is added in the second smelting process. The middle material in the furnace body in the two smelting operations is separately heated by means of the push plate and the material gap, so as to improve and ensure the completeness and thoroughness of alloy material melting, and finally ensure the efficiency of alloy powder preparation. 2. The secondary melting furnace is designed in the shape of a bullet head with a small upper end and a large lower end. The diameter of the push plate is smaller than the diameter of the upper opening of the secondary melting furnace. In this way, the special design of the shape can ensure that the middle material in the furnace body pushed by the push plate can be smoothly sent into the material gap and further heated and melted by the electromagnetic induction coil B, and then sent back into the inner bottom of the secondary melting furnace, so as to ensure the continuous and normal use of the material gap and reduce the problem of poor feeding and even blockage of the material gap. 3. The opening mechanism, the push-pull mechanism and the pressure-sensitive assembly cooperate with each other, so that the vertical column and the push plate can be lifted after the discharge of the primary melting furnace, and the vertical column and the push plate can be lowered and reset after the primary melting furnace is put into melting work again. The movement of the vertical column and the push plate is more labor-saving and reliable, and manual intervention is not needed, so as to reduce the risk of scalding. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the present application; Figure 2 It is a connection schematic view among the secondary melting furnace, the primary melting furnace and the base of the present application; Figure 3 It is a connection schematic view among the secondary melting furnace, the primary melting furnace, the circular table, the mounting seat and the rectangular frame of the present application; Figure 4 It is Figure 3 a sectional view; Figure 5 It is a partial structure sectional view of the present application; Figure 6 It is an enlarged view of the partial structure of the present application; Figure 7The connection between the mounting base, the rectangular frame and the two resisting plates of the application is shown in the schematic view. Figure 8 The connection between the pushing disc and the conical surface in the embodiment 2 of the application is shown in the schematic view.

[0016] Explanation of the reference numerals in the drawing: 1, secondary melting furnace; 101, discharging channel; 102, material passing gap; 103, reinforcing point; 2, primary melting furnace; 201, C-shaped hem; 3, electromagnetic induction coil A; 4, electromagnetic induction coil B; 5, support frame; 6, base; 7, telescopic component; 8, circular table; 9, mounting base; 10, rectangular frame; 1001, limiting narrow opening; 11, discharging pipe; 12, vertical column; 13, pushing disc; 1301, conical surface; 14, gate plate; 15, rotating shaft; 16, straight gear; 17, travel switch; 18, tab; 19, T-shaped column; 20, spring; 21, limiting column; 22, resisting plate; 23, connecting seat; 24, sleeve ring; 25, motor mounting support; 26, telescopic component controller; 27, discharging valve; 28, servo motor. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application; obviously, the described embodiments are only some of the embodiments of the application, rather than all the embodiments of the application, and all other embodiments obtained by those skilled in the art based on the embodiments in the application without creative efforts fall within the protection scope of the application.

[0018] The application will be further described in detail below with reference to the drawings.

[0019] Embodiment 1

[0020] Reference Figures 1-8 A smelting equipment for alloy powder production comprises: The secondary melting furnace 1 is internally provided with a material passing gap 102, and the material passing gap 102 is reinforced by at least two pairs of reinforcing points 103; the primary melting furnace 2 is fixedly installed on the upper portion of the secondary melting furnace 1, and the upper end face of the primary melting furnace 2 is integrally provided with a C-shaped hem 201; a second smelting process is added, and an additional separate heating step for the material in the middle portion of the furnace body is added in the second smelting process; the material in the middle portion of the furnace body in the two smelting operations is separately heated by means of the pushing disc 13 and the material passing gap 102, so as to improve and ensure the completeness and thoroughness of alloy material melting. The electromagnetic induction coil A3 is arranged outside the primary melting furnace 2, and the electromagnetic induction coil B4 is arranged outside the secondary melting furnace 1. The heating implementation manners of the electromagnetic induction coil A3 and the electromagnetic induction coil B4 are omitted here, and can be referred to the prior art with the patent publication number CN111471881B. The induction heating ring in the prior art is the same component as the electromagnetic induction coil A3 and the electromagnetic induction coil B4, only the name is slightly different. The base 6 is fixedly installed at the top of the support frame 5, and the upper end of the support frame 5 is fixedly connected with the lower part of the secondary melting furnace 1. The push disc 13 is arranged in the height direction of the secondary melting furnace 1, and the push-pull mechanism matched with the push disc 13 is installed in the support frame 5, so as to promote the vertical movement of the push disc 13 in the height direction of the secondary melting furnace 1, push the middle part of the molten material in the secondary melting furnace 1 upwards, and then push it into the material gap 102 for additional heating treatment. The rectangular frame 10 is fixedly installed between the secondary melting furnace 1 and the primary melting furnace 2 through a pair of connecting seats 23, and the two shutter plates 14 are connected through the split mechanism on the rectangular frame 10, so as to realize the purpose of moving away from each other and abutting to the middle part. The pressure-sensitive assembly is symmetrically installed on the front side of the rectangular frame 10, and is used to start the push-pull mechanism and promote the vertical movement of the push disc 13 in the height direction of the secondary melting furnace 1 after the two shutter plates 14 move away from each other.

[0021] Referring to Figure 5 , the secondary melting furnace 1 is designed in the shape of a bullet with a small upper end and a large lower end, and the diameter of the push disc 13 is smaller than the diameter of the upper opening of the secondary melting furnace 1. Due to the special design of the shape of the secondary melting furnace 1, the material in the middle of the furnace pushed by the push disc 13 can be smoothly sent into the material gap 102, further heated and melted by the electromagnetic induction coil B4, and then sent back to the bottom of the secondary melting furnace 1 by gravity, so as to ensure the continuous and normal use of the material gap 102, and reduce and prevent the problem of poor feeding or even blockage of the material gap 102.

[0022] Referring to Figure 6 , in order to realize the purpose of moving away from each other and abutting to the middle part of the two shutter plates 14, the split mechanism is specifically provided as follows: the split mechanism includes two limiting columns 21 symmetrically installed in the rectangular frame 10, the two limiting columns 21 are respectively arranged through the two shutter plates 14, and two pairs of limiting narrow openings 1001 matched with the two limiting columns 21 are symmetrically arranged in the rectangular frame 10; and the two limiting columns 21 are respectively and slidingly inserted into the two pairs of limiting narrow openings 1001. The elastic recovery assembly matched with the two gate plates 14 is symmetrically arranged in the rectangular frame 10, the front side of the rectangular frame 10 is fixedly provided with a mounting seat 9, the front end of the mounting seat 9 is symmetrically and rotatably provided with two rotating shafts 15, the outer sides of the two rotating shafts 15 are sequentially and fixedly provided with a straight gear 16 and a sleeve ring 24, the two straight gears 16 are meshingly connected, the outer sides of the two sleeve rings 24 are fixedly connected with two abutting plates 22, and the two abutting plates 22 are respectively arranged opposite to two limiting columns 21. The front side of the mounting seat 9 is fixedly provided with a servo motor 28 through a motor mounting bracket 25, and the output end of the servo motor 28 is fixedly connected with the front end of one of the rotating shafts 15. The operation principle of the split mechanism is as follows: the servo motor 28 is started to drive the rotating shaft 15 connected therewith to rotate, the straight gear 16 on the outer side of the rotating shaft 15 is driven to rotate to drive the other straight gear 16 to rotate, because the output end of the servo motor 28 can be reversibly rotated under control, the two straight gears 16 and the two rotating shafts 15 can be synchronously rotated in opposite directions, so as to realize the rotating purpose of the two sleeve rings 24 and the two abutting plates 22 on the outer sides of the two rotating shafts 15 in opposite directions, the abutting plate 22 close to the servo motor 28 is rotated clockwise to the right side, so as to push the two limiting columns 21 apart to realize the purpose of the two gate plates 14 moving away from each other, thereby opening the passage between the primary melting furnace 2 and the secondary melting furnace 1, and vice versa, the abutting plate 22 close to the servo motor 28 is counterclockwise reset to the left side, so that the two gate plates 14 can be close to the middle part, thereby blocking the passage between the primary melting furnace 2 and the secondary melting furnace 1.

[0023] Referring to the side view shown in Figure 7 , the two sleeve rings 24 are arranged in a diverging manner, and the longitudinal distance between the two sleeve rings 24 is five to ten centimeters, so that when the servo motor 28 fails, the two abutting plates 22 are not excessively close to the middle part, and the two abutting plates 22 can be continuously and normally used.

[0024] Referring to the side view shown in Figure 6 , the elastic recovery assembly comprises two T-shaped columns 19 which are respectively and slidingly arranged in the left and right ends of the rectangular frame 10, the opposite ends of the two T-shaped columns 19 are respectively fixedly connected with the two gate plates 14, and the outer sides of the two T-shaped columns 19 are respectively sleeved with springs 20 for providing elastic force, and the springs 20 are arranged between the gate plates 14 and the side walls of the rectangular frame 10, so that when the abutting plates 22 are rotated, the springs 20 can press the gate plates 14 to move close to the middle part, the limiting columns 21 are also close to the middle part in the limiting narrow opening 1001, and the two gate plates 14 can be reset when the two abutting plates 22 are rotated to the vertical state.

[0025] Referring to the side view shown in Figure 6 , the pressure-sensitive assembly comprises two travel switches 17 which are symmetrically arranged on the front side of the rectangular frame 10, and the opposite ends of the two travel switches 17 are fixedly connected with tabs 18. The specific idea of the cooperation of the opening and closing mechanism, the push-pull mechanism and the pressure-sensitive assembly is as follows: after the two gates 14 are withdrawn, the material in the primary melting furnace 2 is transported into the secondary melting furnace 1 at one time, the two stop plates 22 rotate in opposite directions, the two stop plates 22 realize the stop of the two limit columns 21, the two limit columns 21 move away from each other in the horizontal direction, the two limit columns 21 correspondingly stop and push the two tabs 18, the movable ends of the two travel switches 17 are pushed and retracted, thus the telescopic component controller 26 receives the signal, after a delay for a period of time, that is, after the material in the primary melting furnace 2 is completely discharged into the secondary melting furnace 1, the output ends of the two telescopic components 7 are retracted, the circular table 8 is driven to move upwards, and then the vertical column 12 and the push plate 13 are lifted, so that the material in the middle of the furnace body can be pushed upwards by the push plate 13 and enter the material gap 102 by inertia, and then, after being further heated and melted by the electromagnetic induction coil B4, the material returns to the bottom of the secondary melting furnace 1 by gravity. Conversely, after all the melting steps are completed, the material in the secondary melting furnace 1 is also discharged, the two gates 14 can move towards the middle, the vertical column 12 and the push plate 13 can be lowered to the initial low position, and then the new melting step of the alloy can be started, the two gates 14 move towards the middle, the two stop plates 22 have been rotated to the vertical state, and the two limit columns 21 also move towards the middle, so that the two tabs 18 are no longer pressed and stopped, the movable ends of the two travel switches 17 are reset, the telescopic component controller 26 receives the signal, the output ends of the two telescopic components 7 are continuously extended, and the circular table 8 is driven to move downwards, so that the vertical column 12 and the push plate 13 are lowered.

[0026] With reference to Figure 2 , Figure 3 and Figure 4 , the push-pull mechanism comprises a vertical column 12 which is inserted through the middle of the secondary melting furnace 1, and the push plate 13 is fixed to the upper end of the vertical column 12, the lower end of the vertical column 12 is fixedly connected with the circular table 8, the bottom of the secondary melting furnace 1 is symmetrically provided with two telescopic components 7, the telescopic component 7 can be any one of a hydraulic oil cylinder and a telescopic cylinder, and the output ends of the two telescopic components 7 are fixedly connected with the circular table 8; the top of the base 6 is provided with the telescopic component controller 26 beside the circular table 8, and the telescopic component controller 26 is electrically connected with the two telescopic components 7 and the two travel switches 17.

[0027] With reference to Figure 3 and Figure 5 , the inner bottom of the secondary melting furnace 1 is circumferentially provided with a plurality of material discharge channels 101, and the outer extension end of each material discharge channel 101 is provided with a material discharge pipe 11, and the material discharge pipe 11 is provided with a discharge valve 27, so that after all the melting steps are completed, the discharge valve 27 is opened, the molten material in the secondary melting furnace 1 can be discharged and sent out, and then enters the next process of spray powdering. Embodiment

[0028] Referring to Figure 8 In order to avoid too much material accumulated on the upper surface of the push disc 13 after the complete melting step, the top of the push disc 13 is provided with a conical surface 1301 with an isosceles triangular cross section based on the embodiment 1. The slope surface can reduce the excessive accumulation of material on the upper surface of the push disc 13, and as much as possible, the completely melted material is discharged and enters the next process of spray powdering.

[0029] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A smelting apparatus for producing alloy powder, characterized in that, include: A secondary melting furnace (1) is provided with a material feeding gap (102) circumferentially inside the secondary melting furnace (1), and the secondary melting furnace (1) is reinforced by at least two pairs of reinforcement points (103) within the material feeding gap (102); A primary melting furnace (2) is fixedly installed on the upper part of a secondary melting furnace (1). The upper end face of the primary melting furnace (2) is integrally provided with a C-shaped rolled edge (201). Electromagnetic induction coil A (3), which is installed outside the primary melting furnace (2); electromagnetic induction coil B (4), which is installed outside the secondary melting furnace (1); The base (6) has a support frame (5) fixedly installed on its top, and the upper end of the support frame (5) is fixedly connected to the lower part of the secondary melting furnace (1). Pusher plate (13), the pusher plate (13) is spaced along the height direction of the secondary melting furnace (1), and the support frame (5) is equipped with a push-pull mechanism that matches the pusher plate (13) to make the pusher plate (13) move vertically along the height direction of the secondary melting furnace (1), push the middle part of the molten material in the secondary melting furnace (1) upward, and push it into the material feeding gap (102) for additional heating treatment; A rectangular frame (10) is fixedly installed between a secondary melting furnace (1) and a primary melting furnace (2) via a pair of connecting seats (23). Two gates (14) are connected to the rectangular frame (10) via a split mechanism. The split mechanism is used to achieve the purpose of the two gates (14) moving away in opposite directions and moving closer to the center. Pressure-sensitive components are symmetrically installed on the front side of the rectangular frame (10) to activate the push-pull mechanism after the two gates (14) are pulled away to opposite sides, causing the push plate (13) to move vertically along the height direction of the secondary melting furnace (1).

2. The smelting equipment for alloy powder production according to claim 1, characterized in that: The secondary melting furnace (1) is designed in a bullet shape with a smaller top and a larger bottom, and the diameter of the pusher plate (13) is smaller than the diameter of the upper opening of the secondary melting furnace (1).

3. The smelting equipment for producing alloy powder according to claim 1, characterized in that: The opening mechanism includes two limiting posts (21) symmetrically installed within a rectangular frame (10). The two limiting posts (21) are respectively installed through two gate plates (14). The rectangular frame (10) is symmetrically provided with two pairs of limiting narrow openings (1001) that match the two limiting posts (21). The two limiting posts (21) are respectively slidably inserted into the two pairs of limiting posts (21). The rectangular frame (10) is symmetrically equipped with spring-loaded components that match the two gates (14). The front side of the rectangular frame (10) is fixedly equipped with a mounting base (9). The front end of the mounting base (9) is symmetrically rotatably equipped with two rotating shafts (15). Each of the two rotating shafts (15) is sequentially fixedly sleeved with a spur gear (16) and a collar (24). The two spur gears (16) are meshed with each other. Each of the two collars (24) is fixedly connected with a stop plate (22). The two stop plates (22) are respectively set to abut against the two limiting posts (21). A servo motor (28) is fixedly mounted on the front side of the mounting base (9) via a motor mounting bracket (25), and the output end of the servo motor (28) is fixedly connected to the front end of one of the rotating shafts (15).

4. The smelting equipment for producing alloy powder according to claim 3, characterized in that: The two collars (24) are arranged at opposite ends, and the longitudinal distance between the two collars (24) is five to ten centimeters.

5. The smelting equipment for producing alloy powder according to claim 3, characterized in that: The elastic component includes two T-shaped columns (19) that are slidably inserted into the left and right ends of the rectangular frame (10). The opposite ends of the two T-shaped columns (19) are fixedly connected to the two gates (14), and springs (20) for providing elastic force are sleeved on the outside of the two T-shaped columns (19).

6. The smelting equipment for producing alloy powder according to claim 3, characterized in that: The pressure-sensitive component includes two limit switches (17) symmetrically installed on the front side of the rectangular frame (10), and each of the two limit switches (17) has a tab (18) fixedly connected to one end opposite to the other.

7. The smelting equipment for producing alloy powder according to claim 1, characterized in that: The push-pull mechanism includes a vertical column (12) inserted through the middle of the secondary melting furnace (1), and the push plate (13) is fixed to the upper end of the vertical column (12). The lower end of the vertical column (12) is fixedly connected to a frustum (8). Two telescopic components (7) are symmetrically installed at the bottom of the secondary melting furnace (1). The output ends of the two telescopic components (7) are fixedly connected to the frustum (8).

8. The smelting equipment for producing alloy powder according to claim 1, characterized in that: The inner bottom of the secondary melting furnace (1) is provided with multiple discharge channels (101) in the circumferential direction. Each discharge channel (101) is equipped with a discharge pipe (11) at its outer end, and each discharge pipe (11) is equipped with a discharge valve (27).

Images