Double-sleeve cooling type powder tank device applied to rapid cooling of high-temperature alloy powder

Abstract

The utility model relates to a double-sleeve cooling type powder tank device applied to rapid cooling of high-temperature alloy powder, which comprises a first cooling system, a second cooling system and a third cooling system, the first cooling system comprises a first-stage powder tank and a first cooling part connected to the first-stage powder tank, the first-stage powder tank is provided with a feed port and a discharge port, and the discharge port is connected with a connecting pipeline; the second cooling system comprises a second-stage powder tank and a second cooling part connected to the second-stage powder tank, a material inlet is formed in the top end of the second-stage powder tank and detachably connected to the tail end of the connecting pipeline through a feeding pipeline, and the bottom of the second-stage powder tank is constructed to be of a conical protruding structure; the conical protrusion extends from the bottom of the second-stage powder tank to the center of the second-stage powder tank in a protruding mode. Space can be reasonably utilized, the cooling efficiency can be effectively improved, the cooling effect can be improved, the conical protrusion structure in the second-stage powder tank can scatter powder and prevent the powder from caking, and the cooling contact area of the powder can be further increased.

Description

Technical Field

[0001] This utility model relates to the field of metal powder cooling technology, specifically a dual-set cooling powder tank device for rapid cooling of high-temperature alloy powder. Background Technology

[0002] In vacuum atomization powder production, alloy powder, after atomization, disperses from the atomizing cylinder with a certain temperature into a powder collection tank. The heated alloy powder accumulates in the collection tank, and natural cooling takes a long time to reach room temperature. Furthermore, the powder in the middle, due to its high temperature or insufficient cooling, is prone to agglomeration, thus reducing the powder's morphology and flowability. How to effectively cool the powder in the collection tank, especially the powder inside the tank, and how to achieve effective and rapid cooling without agglomeration, is a pressing technical problem that needs to be solved. Utility Model Content

[0003] The purpose of this invention is to provide a dual-set cooling powder tank device for rapid cooling of high-temperature alloy powder, which can effectively cool the high-temperature alloy powder and prevent it from agglomerating.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dual-cooling powder tank device for rapid cooling of high-temperature alloy powder, comprising a first cooling system and a second cooling system. The first cooling system includes a primary powder tank and a first cooling section connected to the primary powder tank. The primary powder tank has an inlet and an outlet, and the outlet is connected to a connecting pipe. The second cooling system includes a secondary powder tank and a second cooling section connected to the secondary powder tank. The top of the secondary powder tank has a material inlet, which is detachably connected to the end of the connecting pipe via an inlet pipe. The bottom of the secondary powder tank is constructed as a conical protrusion structure, which extends from the bottom of the secondary powder tank toward the center of the secondary powder tank.

[0005] In a preferred embodiment, the first cooling section includes a cooling coil disposed inside the primary powder tank. The cooling coil is constructed in a spiral shape and distributed along the height direction of the primary powder tank. The cooling coil has a medium inlet a and a medium outlet a. This cooling coil structure can increase the contact area with the high-temperature alloy powder and improve the cooling rate of the high-temperature alloy powder.

[0006] In a preferred embodiment, the cooling coil is made of copper. This material has excellent thermal conductivity, which can improve the heat exchange efficiency between the cooling medium and the alloy powder.

[0007] In a preferred embodiment, the first cooling section further includes a first cooling jacket fitted around the outside of the primary powder tank, the first cooling jacket having a medium inlet b and a medium outlet b. Through the cooperation of the external first cooling jacket and the internal cooling coil, the initial cooling efficiency and cooling uniformity of the high-temperature alloy powder can be effectively improved.

[0008] In a preferred embodiment, the first cooling system further includes a thermometer connected to the primary powder tank, the probe of which extends into the interior of the primary powder tank through the lid.

[0009] In a preferred embodiment, the feed line is connected to a third valve. This third valve ensures the internal sealing of the secondary powder tank during movement, preventing powder oxidation or the introduction of impurities.

[0010] In a preferred embodiment, the second cooling section includes a second cooling jacket sleeved on the outside of the secondary powder tank, and the second cooling jacket is provided with a medium inlet c and a medium outlet c.

[0011] In a preferred embodiment, the volume of the secondary powder tank is greater than the volume of the primary powder tank.

[0012] In a preferred embodiment, the powder tank device further includes a base for supporting the secondary powder tank, the base being configured as a support structure that can cooperate with forks, and the top surface of the base being provided with a plurality of support frames adapted to the bottom surface structure of the secondary powder tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The dual-set cooling powder tank device for rapid cooling of high-temperature alloy powder provided by this utility model utilizes the first and second cooling systems distributed vertically, which not only makes reasonable use of space, but also effectively improves cooling efficiency and cooling effect through the two-stage cooling method. The conical protrusion structure in the secondary powder tank can not only disperse the powder and prevent powder agglomeration, but also further increase the cooling contact area of ​​the powder. At the same time, the detachable secondary powder tank can also be used as a turnover tank, which facilitates the turnover of powder and subsequent operations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the dual-set cooling powder tank device for rapid cooling of high-temperature alloy powder in this embodiment of the present invention.

[0015] Figure 2 This is a top view of a dual-set cooling powder tank device used for rapid cooling of high-temperature alloy powder in an embodiment of this utility model.

[0016] Figure 3 for Figure 2Sectional view along the AA direction.

[0017] The meanings of the labels in the diagram are as follows:

[0018] 1. First cooling system; 11. Primary powder tank; 12. Feed pipeline; 13. Feed interface flange; 14. First valve; 15. Cooling coil; 151. Medium inlet a; 152. Medium outlet a; 16. First cooling jacket; 161. Medium inlet b; 162. Medium outlet b; 17. Thermometer;

[0019] 2. Secondary cooling system; 21. Secondary powder tank; 22. Feed pipeline; 23. Third valve; 24. Secondary cooling jacket; 241. Medium inlet c; 242. Medium outlet c; 25. Conical protrusion;

[0020] 3. Connecting pipeline; 31. Second valve; 32. Air inlet; 4. Base; 41. Support frame; 5. Handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] See Figures 1-3 This embodiment discloses a dual-cooling powder tank device for rapid cooling of high-temperature alloy powder, including a first cooling system 1 and a second cooling system 2 connected by a connecting pipe 3. The first cooling system 1 and the second cooling system 2 are distributed vertically. After the high-temperature alloy powder is initially cooled in the first cooling system 1, it sinks into the second cooling system 2 through the connecting pipe 3 for further cooling and turnover.

[0024] Specifically, the first cooling system 1 includes a primary powder tank 11 and a first cooling section connected to the primary powder tank 11. The primary powder tank 11 has an inlet and an outlet. The inlet is connected to an inlet pipe 12, which is connected to a powder atomizing device via an inlet flange 13. The atomized high-temperature alloy powder enters the primary powder tank 11 through the inlet and inlet pipe 12. The outlet is connected to a connecting pipe 3, and the powder that has completed preliminary cooling settles into the second cooling system 2 through the outlet and connecting pipe 3. The inlet pipe 12 is also connected to a first valve 14 for its opening, closing, and flow control, and the connecting pipe 3 is connected to a second valve 31 for its opening, closing, and flow control.

[0025] Combination Figure 3 The first cooling section is used for cooling the material inside the primary powder tank 11, and includes a cooling coil 15 disposed inside the primary powder tank 11. In this embodiment, the cooling coil 15 is constructed in a spiral shape and distributed along the height direction of the primary powder tank 11. The cooling coil 15 has a medium inlet a151 and a medium outlet a152, which extend out of the tank body of the primary powder tank 11 and are connected to a medium pumping device a. Cooling medium is introduced into the cooling coil 15 through the medium inlet a151, and the cooling medium exchanges heat with the alloy powder in the primary powder tank 11. Then, the cooling medium is discharged from the medium outlet a152. For example, the cooling medium can be cooling water, refrigerant, or cooling gas, etc., and this embodiment is not limited to this. In this embodiment, the cooling coil 15 is distributed along the height direction of the primary powder tank 11, and the spiral structure can increase the contact area with the high-temperature alloy powder and improve the cooling rate of the high-temperature alloy powder.

[0026] Preferably, the cooling coil 15 is made of copper, which has excellent thermal conductivity and can improve the heat exchange efficiency between the cooling medium and the alloy powder.

[0027] In a preferred embodiment, the first cooling section further includes a first cooling jacket 16 fitted around the outside of the primary powder tank 11. The first cooling jacket 16 is used to fill the cooling medium to improve the cooling effect of the powder near the outer wall of the primary powder tank 11. The first cooling jacket 16 is provided with a medium inlet b161 and a medium outlet b162. The medium inlet b161 and the medium outlet b162 are connected to a medium pumping device b. The cooling medium is introduced into the first cooling jacket 16 through the medium inlet b161, and the cooling medium exchanges heat with the alloy powder in the primary powder tank 11. Then the cooling medium is discharged from the medium outlet b162.

[0028] In this embodiment, the primary powder tank 11, through the cooperation of the external first cooling jacket 16 and the internal cooling coil 15, can effectively improve the initial cooling efficiency and cooling uniformity of high-temperature alloy powder.

[0029] In a preferred embodiment, the first cooling system 1 further includes a thermometer 17 connected to the primary powder tank 11. The probe of the thermometer 17 extends into the interior of the primary powder tank 11 through the cover of the primary powder tank 11 to detect the temperature of the powder inside. Its digital display is located on the cover of the primary powder tank 11 for easy monitoring by the staff.

[0030] like Figure 1 As shown, the second cooling system 2 includes a secondary powder tank 21 and a second cooling section connected to the secondary powder tank 21. The top of the secondary powder tank 21 is provided with a material inlet, which is detachably connected to the end of the connecting pipe 3 via a feed pipe 22. The material that has completed preliminary cooling enters the secondary powder tank 21 through the feed pipe 22 and the material inlet. It should be noted that in this embodiment, the volume of the secondary powder tank 21 should be larger than the volume of the primary powder tank 11.

[0031] The feed pipe 22 is also connected to a third valve 23. When the secondary powder tank 21 is disassembled, the third valve 23 can ensure the sealing of the interior of the secondary powder tank 21 and prevent the powder from oxidizing or being mixed with impurities.

[0032] The second cooling section is used for cooling the material inside the secondary powder tank 21. It includes a second cooling jacket 24 fitted onto the outside of the secondary powder tank 21. The second cooling jacket 24 is filled with cooling medium to further enhance the cooling effect of the alloy powder. The second cooling jacket 24 is provided with a medium inlet c241 and a medium outlet c242. The medium inlet c241 and the medium outlet c242 are connected to a medium pumping device c. Cooling medium is introduced into the second cooling jacket 24 through the medium inlet c241. The cooling medium exchanges heat with the alloy powder in the secondary powder tank 21, and then the cooling medium is discharged from the medium outlet c242.

[0033] like Figure 3 As shown, further in this embodiment, the bottom of the secondary powder tank 21 is constructed as a conical protrusion 25 structure. This conical protrusion 25 extends from the bottom of the secondary powder tank 21 towards its center, and the cooling cavity of the second cooling jacket 24 extends into the cavity at the bottom of the conical protrusion 25. This conical protrusion 25 structure allows the powder settled in the secondary powder tank 21 to fall onto the conical protrusion 25, thereby dispersing the powder, preventing powder agglomeration, and increasing the cooling contact area of ​​the powder.

[0034] like Figure 1 As shown, the connecting pipe 3 is also provided with a gas inlet 32, which is used to fill the connecting pipe 3 with inert gas to protect the alloy powder in the primary powder tank 11 and the secondary powder tank 21.

[0035] like Figure 1As shown, the powder tank device also includes a base 4, which supports the secondary powder tank 21. Specifically, the base 4 is constructed as a support structure that can cooperate with forks, and its top surface is provided with several support frames 41 that are adapted to the bottom surface structure of the secondary powder tank 21. In this embodiment, the secondary powder tank 21 can not only be used for further cooling and dispersing of alloy powder, but also can be used as a transfer tank.

[0036] In a preferred embodiment, both the primary powder tank 11 and the secondary powder tank 21 are connected to handles 5.

[0037] In practical applications, molten steel is poured from the crucible and atomized into powder particles, which then fall into the primary powder tank 11 through the feed inlet. The cooling coil 15 and the first cooling jacket 16 in the first cooling section circulate cooling fluid, carrying away heat from the powder. When the primary powder tank 11 is full of powder and reaches the set process temperature, the second valve 31 and the third valve 23 are opened, allowing the powder in the primary powder tank 11 to settle into the secondary powder tank 21 for secondary cooling and powder dispersion. After approximately half an hour, the set process temperature is reached, and the second valve 31 and the third valve 23 are closed. At this point, the secondary powder tank 21 can be disassembled for subsequent processes such as mixing, sieving, and packaging. The primary powder tank 11 can repeat the above powder collection and cooling process. The secondary powder tank 21 can be connected to the primary powder tank 11 using spare parts (multiple secondary powder tanks 21 can be used as spares).

[0038] The dual-cooled powder tank device provided in this embodiment utilizes a first cooling system 1 and a second cooling system 2 distributed vertically. This not only makes efficient use of space, but the two-stage cooling method also effectively improves cooling efficiency and effect. Furthermore, the conical protrusions 25 in the secondary powder tank 21 not only disperse the powder and prevent agglomeration, but also further increase the cooling contact area of ​​the powder. The detachable secondary powder tank 21 can also serve as a transfer tank, facilitating powder turnover and subsequent operations.

[0039] 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 preferred examples and are not intended to limit the 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 dual-set cooling powder tank device for rapid cooling of high-temperature alloy powder, characterized in that, The application relates to a powder tank device, which comprises: a first cooling system (1) comprising a first-stage powder tank (11) and a first cooling part connected to the first-stage powder tank (11), wherein the first-stage powder tank (11) is provided with an inlet and an outlet, and the outlet is connected with a connecting pipeline (3); a second cooling system (2) comprising a second-stage powder tank (21) and a second cooling part connected to the second-stage powder tank (21), wherein the top end of the second-stage powder tank (21) is provided with a material inlet, the material inlet is detachably connected to the end of the connecting pipeline (3) through a feeding pipeline (22), and the bottom of the second-stage powder tank (21) is configured as a conical protrusion (25) structure, which extends from the bottom of the second-stage powder tank (21) to the center of the second-stage powder tank (21).

2. The double-cooled powder pot device for rapidly cooling a high-temperature alloy powder according to claim 1, characterized by, The first cooling part comprises cooling coils (15) arranged in the first-stage powder tank (11), wherein the cooling coils (15) are configured as a spiral shape and are distributed along the height direction of the first-stage powder tank (11), and the cooling coils (15) are provided with a medium inlet a (151) and a medium outlet a (152).

3. The double-cooled powder pot device for rapidly cooling a high-temperature alloy powder according to claim 2, characterized by, The cooling coils (15) are made of copper.

4. The double-cooled powder pot device for rapidly cooling a high-temperature alloy powder according to claim 2, characterized by The first cooling part further comprises a first cooling interlayer (16) sleeved outside the first-stage powder tank (11), wherein the first cooling interlayer (16) is provided with a medium inlet b (161) and a medium outlet b (162).

5. The double jacketed cooling powder pot device for rapid cooling of superalloy powder according to claim 1, wherein, The first cooling system (1) further comprises a thermometer (17) connected to the first-stage powder tank (11), wherein the detection end of the thermometer (17) extends into the first-stage powder tank (11) through the cover of the first-stage powder tank (11).

6. The double jacketed cooling powder pot device for rapid cooling of superalloy powder according to claim 1, wherein, The feeding pipeline (22) is connected with a third valve (23).

7. The double jacketed cooling powder pot device for rapid cooling of superalloy powder according to claim 1, wherein, The second cooling part comprises a second cooling interlayer (24) sleeved outside the second-stage powder tank (21), wherein the second cooling interlayer (24) is provided with a medium inlet c (241) and a medium outlet c (242).

8. The double jacketed cooling powder pot device for rapid cooling of superalloy powder according to claim 1, wherein, The volume of the second-stage powder tank (21) is greater than that of the first-stage powder tank (11).

9. The double jacketed cooling powder pot device for rapid cooling of superalloy powder according to claim 1, wherein, The powder tank device further comprises a base (4) for supporting the second-stage powder tank (21), wherein the base (4) is configured as a support structure capable of cooperating with a fork, and the top surface of the base (4) is provided with a plurality of support frames (41) matched with the bottom surface structure of the second-stage powder tank (21).

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