Movable supporting plate structure of electrode induction melting gas atomization pulverizing furnace

Abstract

The utility model relates to a movable supporting plate structure of an electrode induction melting gas atomization powder making furnace, and belongs to the technical field of metal powder preparation. Comprising an atomizing chamber large cover plate (1), a supporting plate (2), a spraying disc (3) and a fastener, grooves are formed in the upper end of the atomizing chamber large cover plate (1) and the upper end of the supporting plate (2), the supporting plate (2) is embedded in the groove of the atomizing chamber large cover plate (1), and the spraying disc (3) is embedded in the groove of the supporting plate (2); the supporting plate (2) is connected with the large cover plate (1) of the atomizing chamber through the fastening piece, and the spraying disc (3) is connected with the supporting plate (2) through the fastening piece. According to the structure, the movable supporting plate (2) horizontally slides in the groove in the upper end of the large cover plate (1) of the atomizing chamber, axis adjustment of the spraying disc (3) is achieved, it is guaranteed that a metal bar and the spraying disc (3) are coaxial, and after the movable supporting plate (2) is centered, the spraying disc (3) does not need to be centered again to be disassembled and assembled. The problems that centering is needed every time a spraying disc (3) is installed back to equipment, the installation time is long, and the production efficiency is affected are solved.

Description

Technical Field

[0001] This utility model relates to a movable pallet structure for an electrode induction melting gas atomization powder making furnace, belonging to the field of metal powder preparation technology. Background Technology

[0002] Electrode induction melting gas atomization technology, also known as EIGA technology, involves locally heating the end of a metal rod in an inert argon atmosphere to rapidly melt the metal. Molten metal droplets fall from the end of the rod under the influence of gravity and the pressure difference between the melting chamber and the atomization chamber. In the atomization chamber, the molten metal is impacted by high-speed argon gas through an annular nozzle, breaking it into tiny droplets. The droplets cool and solidify during their flight, forming spherical metal powder.

[0003] In the EIGA atomization powder production process, the concentricity of the bar stock and the spray disc is one of the key factors affecting powder quality and process stability. Deviations in concentricity cause the molten metal flow to deviate from the center of the atomizing gas flow field, resulting in uneven atomization, powder morphology defects, low fine powder yield, decreased production stability, copper conduit blockage, droplet splashing, coil short circuits, and wasted gas energy. Therefore, during melting and atomization, the axes of the copper conduits of the metal bar stock and the spray disc must be aligned. Currently, the spray disc is fixed to a large cover plate between the atomization chamber and the melting chamber by screws and cannot be moved.

[0004] Industrial production requires improving the production efficiency of existing equipment. As the size of atomized metal rods increases, the feeding mechanism and rod changing chamber are approximately 2.5 meters long. During the assembly and maintenance of the feeding mechanism, rod changing chamber, gate valve, and melting chamber, it is difficult to ensure the concentricity of the metal rods and the spray plate.

[0005] Chinese patent CN220943194U proposes a movable spray plate structure for an electrode induction melting gas atomization pulverizing furnace. The method achieves alignment between the metal bar and the spray plate by moving the spray plate. However, this method has drawbacks: the spray plate needs to be disassembled for regular inspection and replacement of the copper conduit. Each time the spray plate is reinstalled into the equipment, it needs to be moved horizontally for alignment, which takes a long time and affects production efficiency. Utility Model Content

[0006] The technical problem that this invention aims to solve is that existing equipment requires the spray plate to be moved horizontally for alignment every time it is reinstalled, which takes a long time and affects production efficiency.

[0007] The technical solution adopted by this utility model to solve its technical problem is: a movable pallet structure for an electrode induction melting gas atomization pulverizing furnace, including an atomization chamber cover plate, a pallet, a spray disc, and fasteners. The upper ends of the atomization chamber cover plate and the pallet are provided with grooves. The lower end of the pallet is embedded in the groove at the upper end of the atomization chamber cover plate, and the groove at the upper end of the atomization chamber cover plate is larger than the size of the pallet. The groove at the upper end of the pallet is adapted to the spray disc, and the spray disc is embedded in the groove at the upper end of the pallet. The fasteners can detachably connect the pallet to the atomization chamber cover plate and the spray disc to the pallet.

[0008] The fasteners in the above structure include a hook block A and a screw A. The hook block A has an L-shaped structure and a through hole is provided on one bent side wall. The atomizing chamber cover plate has a number of threaded holes A spaced apart circumferentially along the outer side of the groove. The other bent end of the hook block A abuts against the upper end of the atomizing chamber cover plate. The inner wall of the bent side with the through hole abuts against the support plate. The screw A passes through the through hole and is threadedly connected to the threaded hole A.

[0009] Furthermore, the number of hook blocks A in the above structure is 4 to 6, and they are spaced apart circumferentially.

[0010] Furthermore, the threaded hole A described above is a blind hole structure.

[0011] The fasteners in the above structure include a hook block B and a screw B. The hook block B has an L-shaped structure and a through hole is provided on one bent side wall. The support plate has a number of threaded holes B spaced apart circumferentially along the outer side of the groove. The other bent edge of the hook block B abuts against the upper end of the support plate. The inner wall of the bent edge with the through hole abuts against the spray disc. The screw B passes through the through hole and is threadedly connected to the threaded hole B.

[0012] Furthermore, the number of hook blocks B in the above structure is 4 to 6, and they are spaced apart circumferentially.

[0013] Furthermore, the threaded hole B described in the above structure is a blind hole structure.

[0014] In the above structure, an annular sealing groove A is provided at the bottom of the groove at the upper end of the atomizing chamber cover plate, and a sealing ring A is fitted inside the sealing groove A.

[0015] In the above structure, an annular sealing groove B is provided at the bottom of the groove at the upper end of the pallet, and a sealing ring B is fitted inside the sealing groove B.

[0016] In the above structure, both the tray and the upper groove of the atomizing chamber cover are circular ring structures, and the diameter of the upper groove of the atomizing chamber cover is larger than the diameter of the tray.

[0017] The beneficial effects of this utility model are as follows: This structure fixes the tray inside the groove of the atomizing chamber cover plate. The bottom end of the screw A passes through the hook block A and is connected to the atomizing chamber cover plate by threads. The hook block A is fixed by the locking screw A, so that the hook block A locks the tray. When the screw A is separated from the hook block A, it is easy to slide the tray horizontally inside the groove, so as to adjust the axis of the spray disc and ensure that the metal rod and the spray disc are coaxial. By moving the tray to align, the spray disc does not need to be realigned after disassembly and assembly.

[0018] Simultaneously, this structure fixes the spray disc to the support plate. The bottom end of screw B passes through the hook block B and is connected to the support plate. The hook block B is fixed by the locking screw B, thus locking the spray disc. The outer diameter of the side of the spray disc is the same as the inner diameter of the groove in the support plate. No alignment is required during installation, ensuring that the spray disc, support plate, and metal rod are coaxial. By separating or fixing the locking screw B from the hook block B, the spray disc can be quickly moved out and installed, saving time for spray disc installation alignment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the large cover plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the movable pallet of this utility model.

[0022] In the diagram: 1. Atomizing chamber cover plate; 2. Support plate; 3. Spray disc; 4. Air intake bellows; 5. Threaded hole A; 6. Screw A; 7. Hook block A; 8. Threaded hole B; 9. Screw B; 10. Hook block B; 11. Sealing groove A; 12. Sealing groove B; 13. Sealing ring A; 14. Sealing ring B. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figures 1 to 3As shown, this utility model discloses a movable support plate structure for an electrode induction melting gas atomization pulverizing furnace, comprising an atomization chamber cover plate 1, a support plate 2, a spray disc 3, and fasteners. Both the atomization chamber cover plate 1 and the support plate 2 have grooves at their upper ends. The lower end of the support plate 2 is embedded in the groove at the upper end of the atomization chamber cover plate 1, and the groove at the upper end of the atomization chamber cover plate 1 is larger than the size of the support plate 2. The groove at the upper end of the support plate 2 is adapted to the spray disc 3, which is embedded in the groove at the upper end of the support plate 2. The fasteners allow for detachable connection between the support plate 2 and the atomization chamber cover plate 1, and between the spray disc 3 and the support plate 2. Those skilled in the art will understand that the addition of a movable support plate 2 between the atomization chamber cover plate 1 and the spray disc 3 facilitates the alignment of the spray disc 3, preventing dripping molten metal from adhering to the inner wall of the central hole of the spray disc 3 and causing blockage, and also helps maintain the atomization effect. The melting chamber is located directly above the atomizing chamber cover plate 1, and the atomizing chamber is located directly below it. The support plate 2 is connected and fixed to the atomizing chamber cover plate 1 by fasteners. To facilitate the movement and self-alignment of the support plate 2, this structure preferably has grooves at the upper ends of both the atomizing chamber cover plate 1 and the support plate 2, so that the lower end of the support plate 2 is embedded in the groove at the upper end of the atomizing chamber cover plate 1. The groove at the upper end of the atomizing chamber cover plate 1 is larger than the size of the support plate 2, which facilitates the horizontal sliding of the support plate 2. At the same time, the groove at the upper end of the support plate 2 is adapted to the spray disc 3. The spray disc 3 is embedded in the groove at the upper end of the support plate 2, which achieves the coaxial setting of the spray disc 3 and the support plate 2. The spray disc 3 and the support plate 2 can be detachably connected by fasteners to fix the spray disc 3 and the support plate 2.

[0025] Preferably, the fasteners in the above structure include a hook block A7 and a screw A6. The hook block A7 has an L-shaped structure and a through hole is provided on one bent side wall. The atomizing chamber cover plate 1 has a plurality of threaded holes A5 spaced circumferentially along the outer side of the groove. The other bent end of the hook block A7 abuts against the upper end of the atomizing chamber cover plate 1. The inner wall of the bent side with the through hole abuts against the support plate 2. The screw A6 passes through the through hole and is threadedly connected to the threaded hole A5. Those skilled in the art will understand that the preferred fastener structure of this structure includes a hook block A7 and a screw A6. The hook block A7 is an L-shaped structure with a through hole on one bent side wall. The other bent side of the hook block A7 presses against the upper surface of the large cover plate 1. The inner wall of the bent side of the hook block A7 with the through hole also presses against the upper surface of the support plate 2. The upper surface of the support plate 2 is higher than the upper surface of the large cover plate 1. The bottom end of the locking screw A6 passes through the hook block 7 and is connected to the atomizing chamber large cover plate 1 through the threaded hole A5, thereby fixing the support plate 2 to the atomizing chamber large cover plate 1.

[0026] Preferably, the number of hook blocks A7 in the above structure is 4 to 6, and they are spaced apart circumferentially. Those skilled in the art will understand that, in order to ensure that the support plate 2 is evenly stressed and fixed to the atomizing chamber cover plate 1, this structure preferably has 4 to 6 hook blocks A7, spaced apart circumferentially. In practice, 4 hook blocks A7 are preferably used to save installation time and improve efficiency.

[0027] Preferably, the threaded hole A5 in the above structure is a blind hole structure. Those skilled in the art will understand that, in order to ensure structural strength and avoid interference caused by the screw A6 passing through the threaded hole A5, the threaded hole A5 is preferably a blind hole structure.

[0028] Preferably, the fastener in the above structure includes a hook block B10 and a screw B9. The hook block B10 has an L-shaped structure and a through hole is provided on one bent side wall. The support plate 2 has a plurality of threaded holes B8 spaced apart circumferentially along the outer side of the groove. The other bent end of the hook block B10 abuts against the upper end of the support plate 2. The inner wall of the bent side with the through hole abuts against the spray disc 3. The screw B9 passes through the through hole and is threadedly connected to the threaded hole B8. Those skilled in the art will understand that the upper end face of the spray disc 3 is fixed to the upper end face of the support plate 2 via a threaded connection. The upper end face of the spray disc 3 is higher than the upper end face of the support plate 2. Preferably, the hook block B10 has an L-shaped structure, and a through hole is provided on one bent side wall. Several threaded holes B8 are provided at intervals along the outer circumferential direction of the groove on the support plate 2. The other bent edge of the hook block B10 abuts against the upper end of the support plate 2, and the inner wall of the bent edge with the through hole abuts against the spray disc 3, so that the screw B9 passes through the through hole and is threadedly connected to the threaded hole B8, thus fixing the spray disc 3 to the support plate 2. When the locking screw B9 is separated from the hook block B10, it is convenient to slide the support plate 2 horizontally inside the groove of the atomizing chamber cover plate 1, thereby adjusting the axis of the spray disc 3 and ensuring that the material rod and the spray disc 3 are coaxial.

[0029] Preferably, the number of hook blocks B10 in the above structure is 4 to 6, and they are circumferentially spaced. Those skilled in the art will understand that, in order to ensure that the spray disc 3 is evenly stressed and fixed to the support plate 2, this structure preferably has 4 to 6 hook blocks B10, and they are circumferentially spaced. In practice, 4 hook blocks B10 are preferable, saving installation time and improving efficiency.

[0030] Preferably, the threaded hole B8 in the above structure is a blind hole structure. Those skilled in the art will understand that, in order to ensure structural strength and avoid interference caused by the screw B9 passing through the threaded hole B8, the threaded hole A5 is preferably a blind hole structure.

[0031] Preferably, in the above structure, an annular sealing groove A11 is provided at the bottom of the groove at the upper end of the atomizing chamber cover plate 1, and a sealing ring A13 is fitted inside the sealing groove A11. Those skilled in the art will understand that this structure has a sealing groove A11 on the upper end face of the groove of the atomizing chamber cover plate 1, and a sealing ring A13 is installed on the inner side of the sealing groove A11. The inner diameter of the groove of the atomizing chamber cover plate 1 is larger than the outer diameter of the movable support plate 2. The sealing ring A13 facilitates the sealing of the atomizing chamber cover plate 1 and the support plate 2, preventing wear and detachment of the sealing ring A13 during the movement and adjustment of the support plate 2.

[0032] Preferably, in the above structure, an annular sealing groove B12 is provided at the bottom of the groove at the upper end of the tray 2, and a sealing ring B14 is fitted inside the sealing groove B12. Those skilled in the art will understand that, in order to achieve a seal between the spray disc 3 and the tray 2, this structure preferably provides an annular sealing groove B12 at the bottom of the groove at the upper end of the tray 2, and a sealing ring B14 is fitted inside the sealing groove B12.

[0033] Preferably, in the above structure, both the upper grooves of the tray 2 and the atomizing chamber cover plate 1 are annular structures, and the diameter of the upper groove of the atomizing chamber cover plate 1 is larger than the diameter of the tray 2. Those skilled in the art will understand that, for ease of installation and to facilitate the movement of the tray 2, this structure preferably uses annular structures for both the tray 2 and the upper groove of the atomizing chamber cover plate 1; that is, the tray 2 is an annular structure, and the upper groove of the atomizing chamber cover plate 1 is an annular structure with a diameter larger than that of the tray 2, facilitating the horizontal alignment of the tray 2.

[0034] Operation process

[0035] When using the spray disc 3 for alignment, the support plate 2 is fixed inside the groove of the atomizing chamber cover plate 1 using screws A6. A sealing groove A11 is provided on the upper end face of the groove inside the atomizing chamber cover plate 1, so that the sealing ring A13 is located inside the sealing groove A11. This allows the support plate 2 to seal properly, preventing wear and detachment of the sealing ring A13 during adjustment of the support plate 2. The spray disc 3 is then placed inside the groove at the upper end of the support plate 2, so that the spray disc 3... The metal rod is coaxial with the support plate 2. The hook block A7 facilitates the positioning of the support plate 2 during installation. The hook block A7 is fixed by the screw A6, which locks the support plate 2. When the screw A6 is separated from the hook block A7, the support plate 2 can slide horizontally inside the groove of the atomizing chamber cover plate 1, thereby adjusting the axis of the spray disc 3 and ensuring that the metal rod and the spray disc 3 are coaxial. The air intake bellows 4 is connected to the spray disc 3 to maintain the atomization effect.

[0036] When disassembling the spray disc 3, separate the air intake bellows 4 from the spray disc 3, and separate the screw B9 from the hook block B10. The spray disc 3 can then be removed for inspection or replacement of the duct and the internal sealing ring of the spray disc 3.

[0037] When installing the spray disc 3, place the spray disc 3 in the groove inside the support plate 2. The left end of the hook block B10 presses against the upper surface of the support plate 2, and the right end of the hook block B10 presses against the upper surface of the side of the spray disc 3. The bottom end of the screw B9 passes through the hook block B10 and is connected to the movable support plate 2 through the thread 8. The upper surface of the side of the spray disc 3 is locked and fixed to the upper surface of the movable support plate 2 by the screw B9. The support plate 2 and the spray disc 3 are sealed by the sealing ring B14. Since the inner diameter of the groove inside the support plate 2 is the same as the outer diameter of the side of the spray disc 3, there is no need to re-align. Connect the air intake bellows 4 to the spray disc 3 to maintain the atomization effect.

Claims

1. A movable pallet structure for an electrode induction melting gas atomization pulverizing furnace, characterized in that: The device includes a large cover plate (1) of the atomizing chamber, a support plate (2), a spray disc (3), and fasteners. The upper ends of the large cover plate (1) and the support plate (2) are provided with grooves. The lower end of the support plate (2) is embedded in the groove at the upper end of the large cover plate (1), and the groove at the upper end of the large cover plate (1) is larger than the size of the support plate (2). The groove at the upper end of the support plate (2) is adapted to the spray disc (3), and the spray disc (3) is embedded in the groove at the upper end of the support plate (2). The fasteners can detachably connect the support plate (2) to the large cover plate (1) of the atomizing chamber and the spray disc (3) to the support plate (2).

2. The movable pallet structure of the electrode induction melting gas atomization pulverizing furnace according to claim 1, characterized in that: The fasteners include a hook block A (7) and a screw A (6). The hook block A (7) has an L-shaped structure and a through hole is provided on one bent side wall. The atomizing chamber cover plate (1) has several threaded holes A (5) spaced circumferentially along the outer side of the groove. The other bent side end of the hook block A (7) abuts against the upper end of the atomizing chamber cover plate (1). The inner wall of the bent side with the through hole abuts against the support plate (2). The screw A (6) passes through the through hole and is threadedly connected to the threaded hole A (5).

3. The movable tray structure of an electrode induction melting gas atomization powder production furnace according to claim 2, characterized in that: The number of hook blocks A(7) is 4 to 6, and they are arranged at circumferential intervals.

4. The movable tray structure of an electrode induction melting gas atomizing powder production furnace according to claim 2, characterized in that: The threaded hole A(5) is a blind hole structure.

5. The movable pallet structure of the electrode induction melting gas atomization pulverizing furnace according to claim 1, characterized in that: The fasteners include a hook block B (10) and a screw B (9). The hook block B (10) has an L-shaped structure and a through hole is provided on one bent side wall. The support plate (2) has a number of threaded holes B (8) spaced apart along the outer side of the groove. The other bent side end of the hook block B (10) abuts against the upper end of the support plate (2). The inner wall of the bent side with the through hole abuts against the spray plate (3). The screw B (9) passes through the through hole and is threadedly connected to the threaded hole B (8).

6. The movable tray structure of an electrode induction melting gas atomization powder production furnace according to claim 5, characterized in that: The number of hook blocks B(10) is 4 to 6, and they are arranged at circumferential intervals.

7. The movable pallet structure of the electrode induction melting gas atomization pulverizing furnace according to claim 5, characterized in that: The threaded hole B(8) is a blind hole structure.

8. The movable pallet structure of the electrode induction melting gas atomization pulverizing furnace according to claim 1, characterized in that: An annular sealing groove A (11) is provided at the bottom of the groove at the upper end of the atomizing chamber cover plate (1), and a sealing ring A (13) is fitted inside the sealing groove A (11).

9. The movable pallet structure of the electrode induction melting gas atomization pulverizing furnace according to claim 1, characterized in that: The bottom of the groove at the upper end of the tray (2) is provided with an annular sealing groove B (12), and a sealing ring B (14) is fitted inside the sealing groove B (12).

10. The movable pallet structure of an electrode induction melting gas atomizing powder production furnace according to claim 1, characterized in that: The grooves at the upper ends of the tray (2) and the atomizing chamber cover plate (1) are both annular structures, and the diameter of the groove at the upper end of the atomizing chamber cover plate (1) is larger than the diameter of the tray (2).

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