A feeding device for nitrogen atomized powder production

Abstract

The utility model relates to a kind of feeding device of nitrogen atomization powder making, including vertical distribution's support structure, the top of support structure is equipped with the U-shaped support of U-shaped opening upwards and can rotate, U-shaped support is equipped with the inclinedly arranged feed pipe, both ends of feed pipe are located outside U-shaped support, and the lower end of feed pipe is closed arrangement, the bottom of the lower end of feed pipe is also communicated with discharge hose, the higher end of feed pipe is open and detachably fixedly connected with pipe cover, and the top of the higher end of feed pipe is also communicated with feed hose, the end of feed hose away from feed pipe is equipped with first flange, and feed hose and discharge hose are metal braided hose, the utility model is convenient for discharging when using;Secondly, it is convenient for long time use.

Description

Technical Field

[0001] This utility model belongs to the technical field of feeding devices, and in particular relates to a feeding device for nitrogen atomization powder making. Background Technology

[0002] Currently, when using nitrogen for atomization powder production, the metal raw materials need to be poured into a furnace such as an electric furnace or induction furnace to be melted into an alloy liquid, and then the alloy liquid is injected into an intermediate ladle located above the atomizing nozzle using a feeding device. In the prior art, the utility model patent with publication number CN 217192576 U discloses a continuous feeding device for gas atomization powder production. When this utility model is in use, the alloy liquid flows into the conveying cylinder from the feeding channel. The motor body drives the reducer body to drive the reamer shaft to rotate. The reamer shaft drives the reamer blades to rotate. The rotating reamer blades transport the alloy liquid entering the conveying cylinder to the discharge channel. The alloy liquid is discharged from the discharge channel. The continuous rotation of the reamer blades ensures the continuous delivery of the alloy liquid.

[0003] However, during the use of the aforementioned utility model patent, in order to avoid affecting the normal rotation of the reamer blades, there will be a certain distance between the reamer blades and the inner wall of the feeding cylinder. Furthermore, since the feeding cylinder in the aforementioned utility model patent is horizontally distributed, when the feeding device is not in use, a certain amount of alloy liquid will remain at the bottom of the feeding cylinder, resulting in incomplete feeding. Secondly, alloy liquid will also remain on the reamer blades and reamer shaft, which is not easy to clean. Thus, when the feeding device is not in use, the alloy liquid in the feeding cylinder may sometimes solidify into a solid state, which will affect the feeding effect of the feeding device during long-term use and make it inconvenient to use. Therefore, there are still shortcomings and deficiencies in the prior art. Utility Model Content

[0004] The purpose of this invention is to provide a feeding device for nitrogen atomization powder production, so as to solve the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows:

[0006] A nitrogen atomization powder feeding device includes a vertically distributed support structure. A U-shaped support with an upward-facing, rotatable U-shaped opening is mounted on the top of the support structure. An inclined conveying pipe is mounted on the U-shaped support, with both ends of the conveying pipe located outside the U-shaped support. The lower end of the conveying pipe is closed, and a discharge hose is connected to the bottom of the lower end. The higher end of the conveying pipe is open and detachably fixed with a pipe cap, and a feed hose is connected to the top of the higher end. A first flange is fitted onto the end of the feed hose furthest from the conveying pipe. Both the feed hose and the discharge hose are metal braided hoses.

[0007] Furthermore, the tube cap is connected to a plurality of tracheal connectors that are equidistantly distributed along the circumference of the tube cap.

[0008] Furthermore, an annular sealing ring is installed between the pipe cover and the conveying pipe.

[0009] Furthermore, a receiving groove is coaxially formed on the end face of the higher end of the conveying pipe, and the pipe cover is located in the receiving groove and connected to the conveying pipe by a number of connecting bolts.

[0010] Furthermore, vertically distributed sleeves with open top surfaces are installed on the top surface of the support structure. A rotating shaft with a coaxial axis is rotatably connected inside the sleeve, and a positioning screw that penetrates the sleeve is threaded onto the sleeve. The top end of the rotating shaft is located outside the sleeve and connected to the U-shaped support, and a positioning hole is opened on the rotating shaft that is opposite to the position of the positioning screw.

[0011] The beneficial effects of this utility model by adopting the above technical solution are as follows:

[0012] This utility model utilizes a bracket structure and a U-shaped bracket to jointly support the conveying pipe. Before use, the first flange on the infeed hose can be used to detachably and securely connect the infeed hose to the discharge position of the furnace body, such as an electric furnace or induction furnace. Simultaneously, the discharge hose is inserted into the infeed position of the tundish to detachably connect it to the tundish. During use, when the valve at the furnace body's discharge position is opened, the molten alloy flows into the conveying pipe through the infeed hose. Since the conveying pipe is angled downwards, the molten alloy can then be discharged back into the tundish through the discharge hose for easy feeding. Furthermore, when… When the feeding device is not in use, the feeding hose can be separated from the furnace body, and the discharge hose can be separated from the tundish. Then, by rotating the U-shaped bracket, the conveying pipe can be rotated. At this time, since the pipe cover and the conveying pipe are detachably fixed, after removing the pipe cover, the residual alloy liquid in the conveying pipe can be cleaned using an air gun that sprays inert gas or a wire brush with a certain length, thus facilitating long-term use. In addition, during the cleaning process, since the discharge hose is far away from the feeding position of the tundish, the residual alloy liquid in the conveying pipe will not flow back into the tundish, so as not to affect the product quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 One of the three-dimensional structural diagrams of the middle part of the device;

[0015] Figure 3 for Figure 1 The second schematic diagram of the three-dimensional structure of the middle part of the device;

[0016] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle;

[0017] Figure 5 for Figure 3 A schematic diagram of the middle part of the device in its split state;

[0018] Figure 6 for Figure 2 A schematic diagram of the middle part of the device in its split state.

[0019] Reference numerals in the attached drawings: 1. Feed hose; 2. Discharge hose; 3. First flange; 4. Conveyor pipe; 41. Receiving trough; 5. Pipe cover; 6. U-shaped bracket; 7. Bracket structure; 8. Air pipe connector; 9. Annular sealing ring; 10. Sleeve; 11. Rotating shaft; 12. Positioning screw; 13. Handwheel; 14. Positioning hole; 15. Connecting bolt; 16. Feed pipe connector; 17. Discharge pipe connector. Detailed Implementation

[0020] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0021] like Figures 1 to 6 As shown, this utility model provides a nitrogen atomization powder feeding device, including a vertically distributed support structure 7, which is fixed in position during use. A U-shaped support 6 with an upward-facing U-shaped opening is installed on the top of the support structure 7. An inclined conveying pipe 4 is installed on the U-shaped support 6. During use, the support structure 7 and the U-shaped support 6 can jointly support the conveying pipe 4. Both ends of the conveying pipe 4 are located outside the U-shaped support 6, and the lower end of the conveying pipe 4 is the discharge end and is closed. The bottom of the lower end of the conveying pipe 4 is also connected to a discharge hose 2. Specifically, the bottom of the lower end of the conveying pipe 4 is fixedly connected to a discharge pipe connector 17, which is connected to the feed hose 2. The pipes 1 are connected by flanges and bolts in the prior art; the higher end of the conveying pipe 4 is provided with a pipe cover 5 which is detachably fixedly connected, and the top of the higher end of the conveying pipe 4 is also connected to the feed hose 1. Specifically, the top of the higher end of the conveying pipe 4 is fixedly connected to the feed pipe connector 16, and the feed pipe connector 16 and the feed hose 1 are connected by flanges and bolts in the prior art; the end of the feed hose 1 away from the conveying pipe 4 is fitted with a first flange 3, and both the feed hose 1 and the discharge hose 2 are metal braided hoses, such as stainless steel metal braided hoses, which can be used to transport fluid media and have good flexibility, wear resistance, and bending resistance.

[0022] Specifically, before use, the first flange 3 on the feed hose 1 can be used to detachably and securely connect the feed hose 1 to the discharge position of the furnace body such as an electric furnace or induction furnace; at the same time, the discharge hose 2 is inserted into the feed position of the tundish to detachably connect the discharge hose 2 to the inside of the tundish; and since both the feed hose 1 and the discharge hose 2 are metal braided hoses, they can be bent, which makes it easy for the feed hose 1 and the discharge hose 2 to be connected to the furnace body and the tundish respectively.

[0023] Then, during use, after opening the valve at the furnace body's discharge position, the molten alloy can flow into the conveying pipe 4 through the feed hose 1. Since the conveying pipe 4 is inclined downwards, the molten alloy can then be discharged into the tundish through the discharge hose 2 for easy feeding. Secondly, when the feeding device is not in use, the feed hose 1 can be separated from the furnace body, and the discharge hose 2 can be separated from the tundish. Then, by rotating the U-shaped bracket 6, the conveying pipe 4 can be rotated. At this time, since the pipe cover 5 and the conveying pipe 4 are detachably fixed, after removing the pipe cover 5, the molten alloy remaining in the conveying pipe 4 can be cleaned using an air gun that sprays inert gas or a wire brush with a certain length, thus facilitating long-term use. In addition, during the cleaning process, since the discharge hose 2 is away from the tundish's feed position, the molten alloy remaining in the conveying pipe 4 will not flow back into the tundish, thus avoiding affecting product quality.

[0024] Furthermore, such as Figure 1 , Figures 3 to 5 As shown, the pipe cover 5 is connected to several air pipe joints 8 that are equidistantly distributed along the circumference of the pipe cover 5. Specifically, the axial lines of the air pipe joints 8 are all parallel to the axial line of the pipe cover 5. In use, the air inlet hose can be connected through the air pipe joints 8, and the air inlet hose can be connected to a gas source device that can spray inert gas to assist in the feeding of the alloy liquid in the conveying pipe 4. At this time, a distance can be left between the outer wall of the discharge hose 2 and the feeding position of the intermediate tundish, so that the inert gas can be discharged outward through the gap between the discharge hose 2 and the feeding position of the intermediate tundish.

[0025] Furthermore, such as Figure 5 As shown, an annular sealing ring 9 is installed between the pipe cover 5 and the conveying pipe 4. The annular sealing ring 9 is a high-temperature resistant sealing ring in the prior art. The annular sealing ring 9 can improve the sealing performance of the pipe cover 5 and the conveying pipe 4 at the connection position to prevent air leakage.

[0026] Furthermore, such as Figures 3 to 5As shown, a receiving groove 41 is coaxially opened on the end face of the higher end of the conveying pipe 4. The pipe cover 5 is located in the receiving groove 41 and is connected to the conveying pipe 4 by several connecting bolts 15. Specifically, when the pipe cover 5 is connected to the conveying pipe 4, the screw end of the connecting bolt 15 passes through the pipe cover 5 and is threadedly connected to the conveying pipe 4. The head of the connecting bolt 15 abuts against the pipe cover 5, which makes it easy to install and remove the pipe cover 5 on the conveying pipe 4.

[0027] Furthermore, such as Figures 1 to 3 and Figure 6 As shown, vertically distributed sleeves 10 with open top surfaces are installed on the top surface of the support structure 7. A rotating shaft 11 coaxially arranged is rotatably connected inside the sleeve 10, and a positioning screw 12 that passes horizontally through the sleeve 10 is threaded onto the sleeve 10. A handwheel 13 is fitted on one end of the positioning screw 12 outside the sleeve 10, which facilitates the rotation of the positioning screw 12. The top end of the rotating shaft 11 is located outside the sleeve 10 and is connected to the U-shaped bracket 6. A positioning point is provided on the rotating shaft 11 that is opposite to the position of the positioning screw 12. Specifically, when the positioning screw 12 is located inside the sleeve 10 and its end is inside the positioning hole 14, it can prevent the rotating shaft 11 from rotating. At this time, it can prevent the material conveying pipe 4 from rotating, thereby restricting the position of the material conveying pipe 4. By rotating the positioning screw 12, after the positioning screw 12 is moved out of the positioning hole 14, the rotating shaft 11 can be rotated. In addition, the rotating shaft 11 and the sleeve 10 are slidably connected, which makes it easy to install and remove the U-shaped bracket 6 on the bracket structure 7 during use.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding device for nitrogen atomization powder production, characterized in that: The device includes a vertically distributed support structure. A U-shaped support with an upward-facing, rotatable U-shaped opening is mounted on the top of the support structure. An inclined conveying pipe is mounted on the U-shaped support. Both ends of the conveying pipe are located outside the U-shaped support, with the lower end of the conveying pipe closed. A discharge hose is connected to the bottom of the lower end of the conveying pipe. A pipe cap is detachably and fixedly connected to the upper end of the conveying pipe, and a feed hose is connected to the top of the upper end of the conveying pipe. A first flange is fitted to the end of the feed hose furthest from the conveying pipe. Both the feed hose and the discharge hose are metal braided hoses.

2. The feeding device for nitrogen atomization powder production according to claim 1, characterized in that: The tube cap is connected to several tracheal connectors that are equidistantly distributed along the circumference of the tube cap.

3. The feeding device for nitrogen atomization powder production according to claim 2, characterized in that: An annular sealing ring is installed between the pipe cover and the conveying pipe.

4. The feeding device for nitrogen atomization powder production according to claim 1, characterized in that: A receiving groove is coaxially formed on the end face of the higher end of the conveying pipe, and the pipe cover is located in the receiving groove and connected to the conveying pipe by a number of connecting bolts.

5. The feeding device for nitrogen atomization powder production according to claim 1, characterized in that: The top surface of the support structure is equipped with vertically distributed sleeves with open top surfaces. A rotating shaft is rotatably connected inside the sleeve and is arranged on the same axis. A positioning screw that runs horizontally through the sleeve is threaded onto the sleeve. The top end of the rotating shaft is located outside the sleeve and is connected to the U-shaped support. A positioning hole is opened on the rotating shaft that is opposite to the position of the positioning screw.

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