Impurity leaching module of alloy powder prefabricating device

Abstract

The utility model discloses an impurity leaching module of an alloy powder prefabricating device, which relates to the technical field of metal powder preparation equipment and comprises a support structure, a pickling sub-module and a rinsing sub-module. The pickling sub-module comprises a pickling tank connected with the cross supporting beam through a rotating shaft, an upper top plate is arranged at the top end of the pickling tank, a stirring claw is arranged in an inner cavity of the pickling tank, and the bottom end of the side wall of the pickling tank communicates with a discharging pipe; the rinsing sub-module comprises a limiting barrel and a rotatable water permeable barrel. The rinsing sub-module is used for rinsing alloy powder raw materials; stirring pickling can be carried out when the stirring claws rotate, standing soaking can be carried out when the stirring claws stop rotating, and pickling liquid and cleaning liquid in alloy powder raw materials are thrown out for rinsing when the water permeable bucket rotates. Structural support is provided for the impurity leaching process of the alloy powder raw material, the industry requirement is met, meanwhile, integration of the pickling sub-module and the rinsing sub-module is achieved, the automation degree is high, the occupied area is small, and the market prospect is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of metal powder preparation equipment, and particularly relates to an impurity leaching module of an alloy powder prefabrication device. Background Technique

[0002] Alloy powder is one of the commonly used consumables for 3D printing.

[0003] Tantalum powder is one of the commonly used raw materials for preparing spherical alloy powder. However, during the preparation process, tantalum powder is usually doped with impurity elements such as iron, magnesium, nickel, and chromium, which will have an adverse impact on the subsequent spheroidization processing of tantalum powder and 3D printing.

[0004] The Chinese invention patent "High-purity tantalum powder and its preparation method" (publication number CN114749655B) discloses a method for removing impurities by two types of pickling solutions (including a first pickling solution of 5-30 wt% HNO3 and 0.5-5 wt% HF and a second pickling solution of 5-15 wt% HNO3 and 0.2-2 wt% HF), but there is a lack of corresponding pickling equipment in the industry. Summary of the Invention

[0005] In order to meet the requirements for "impurity removal technology of alloy powder raw materials" in the above background technique, the utility model provides an impurity leaching module of an alloy powder prefabrication device, which realizes the integration of the pickling sub-module and the rinsing sub-module while meeting the industry requirements.

[0006] The technical solution adopted by the utility model to meet the above requirements is:

[0007] An impurity leaching module of an alloy powder prefabrication device, comprising a support structure, a pickling sub-module and a rinsing sub-module; the support structure includes two horizontally arranged cross braces and four vertically arranged columns, the cross braces are horizontally placed, and the columns are vertically placed; each end of each cross brace is fixedly connected to one of the columns, and adjacent columns are reinforced by horizontally arranged connecting rods; the pickling sub-module includes a pickling tank connected to the cross brace through a rotating shaft, a rotating motor is installed on the outer side wall of the cross brace, and the output shaft of the rotating motor is connected to the rotating shaft; the top of the pickling tank is provided with an upper top plate, a vertically arranged stirring claw is arranged at the center position of the inner cavity of the pickling tank, a stirring motor is installed on the upper surface of the upper top plate, and the output shaft of the stirring motor penetrates the upper top plate and is connected to the stirring claw; a discharge pipe is connected and communicated with the bottom end of the side wall of the pickling tank, and a first valve body is installed in the middle of the discharge pipe; the rinsing sub-module is placed directly below the pickling sub-module; the rinsing sub-module includes a limiting cylinder and a permeable water bucket placed in the inner cavity of the limiting cylinder and capable of rotating; a connecting shaft is arranged at the center position of the bottom surface of the permeable water bucket, and the connecting shaft is inserted into the center of the bottom plate of the limiting cylinder; the connecting shaft is connected to a rinsing motor through a transmission belt; the rinsing motor is installed on the outer side wall of the limiting cylinder.

[0008] As a further optimized solution of the present invention, the permeable water bucket includes an installation cylinder and a filter screen; the installation cylinder is in the shape of a bottomed and topless cylinder, and the filter screen is in the shape of a bottomed and topless cylinder; water permeable holes are provided at the outer edge of the bottom plate and the bottom end of the side wall of the installation cylinder; the filter screen is press-fitted in the inner cavity of the installation cylinder.

[0009] As a further optimized solution of the present invention, the bottom surface of the filter screen is press-fitted on the bottom surface of the inner cavity of the installation cylinder.

[0010] As a further optimized solution of the present invention, the installation cylinder is connected to the limiting cylinder through a second bearing; the inner ring of the second bearing is connected to the middle upper part of the side wall of the installation cylinder, and the outer ring of the second bearing is connected to the limiting cylinder.

[0011] As a further optimized solution of the present invention, a water blocking ring for shielding the second bearing is formed by the inward extension of the top of the limiting cylinder, and the side wall of the installation cylinder is placed below the water blocking ring.

[0012] As a further optimized solution of the present invention, the upper surface of the bottom plate of the limiting cylinder is provided with an inclined bottom surface; a drain hole is opened on the side wall of the limiting cylinder, and the limiting cylinder is located at the lower end position of the inclined bottom surface.

[0013] As a further optimized solution of the present invention, a drain hose is inserted into the drain hole; a water valve is installed on the drain hose.

[0014] As a further optimization solution of the utility model, a stop rod is fixedly connected between the two cross bracing beams and is arranged in an I-shape.

[0015] As a further optimization solution of the utility model, a sealing plate that can be pulled out laterally is provided above the rinsing submodule, a nozzle is plugged and installed on the sealing plate, and the nozzle is connected to an external water source through a water supply pipe.

[0016] As a further optimization solution of the utility model, a feed port is provided on the upper top plate, and an openable and closable door is installed at the position of the feed port.

[0017] In summary, the utility model is beneficial in that:

[0018] The utility model has a simple structure and reliable functions. The support structure plays a structural support role. The pickling submodule is used to pickle the alloy powder raw material, and the rinsing submodule is used to rinse the alloy powder raw material. When the stirring claw rotates, stirring pickling can be performed, and when the stirring claw stops rotating, it can be left to soak. When the water-permeable barrel rotates, the pickling liquid and the cleaning liquid in the alloy powder raw material are thrown out for rinsing. The present invention provides structural support for the impurity leaching process of the alloy powder raw material, meets the needs of the industry, and realizes the integration of the pickling submodule and the rinsing submodule. It has a high degree of automation and a small footprint, further avoiding the formation of a mixing blind area in the pickling submodule, and has broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application is further described below with reference to the accompanying drawings:

[0020] Figure 1 It is a front structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the supporting structure;

[0022] Figure 3 It is a schematic diagram of the structure of the pickling submodule;

[0023] Figure 4 This is a schematic diagram of the structure of the rinsing submodule;

[0024] Figure 5 This is a schematic diagram of the coupling installation position and structure;

[0025] Figure 6 This is a schematic diagram of the water-permeable barrel structure;

[0026] Figure 7 It is a schematic diagram of the rotation state of the pickling tank;

[0027] Figure 8 It is a side structural schematic diagram of the utility model.

[0028] Description of the reference numerals:

[0029] In the figure,

[0030] 1. Support structure; 11. Cross brace beam; 12. Column; 13. Tie rod; 14. Stop rod;

[0031] 2. Pickling sub-module; 21. Pickling tank; 22. Upper top plate; 221. Feed inlet; 23. Stirring claw; 24. Stirring motor; 25. Discharge pipe; 26. First valve body;

[0032] 3. Rinsing sub-module; 31. Limiting cylinder; 311. Water retaining ring; 312. Inclined bottom surface; 3121. Protection ring; 313. Drain hole; 314. Drain hose; 3141. Water valve;

[0033] 32. Permeable water bucket; 321. Installation cylinder; 3211. Water permeable hole; 322. Filter screen; 323. Second bearing; 33. Coupling shaft; 34. Rinsing motor;

[0034] 4. Sealing plate. Detailed implementation manners

[0035] Based on the above structural features of the present application, the implementation manners of the present application are further described as follows:

[0036] Referring to Figures 1 to 8 , this embodiment provides an impurity leaching module of an alloy powder prefabrication device, including a support structure 1, a pickling sub-module 2 and a rinsing sub-module 3. The support structure 1 plays a role in structural support. The pickling sub-module 2 is used for pickling the alloy powder raw material, and the rinsing sub-module 3 is used for rinsing the alloy powder raw material.

[0037] Referring to Figure 1 , Figure 2 and Figure 8 , the support structure 1 includes two horizontally arranged cross brace beams 11 and four vertically arranged columns 12. The cross brace beam 11 is horizontally placed, and the column 12 is vertically placed; both ends of each cross brace beam 11 are respectively fixedly connected to a column 12 (for example, fixedly connected by bolts), and adjacent columns 12 are reinforced by a horizontally placed tie rod 13. Both ends of the tie rod 13 are respectively perpendicularly fixedly connected to the column 12 (for example, fixedly connected by bolts).

[0038] Referring to Figure 3 and Figure 8, the pickling sub-module 2 includes a pickling tank 21 connected to the cross brace 11 by a rotating shaft. The pickling tank 21 is arranged between two cross braces 11. There are two rotating shafts which are coaxially arranged. The two rotating shafts are respectively fixedly connected to the two side walls of the pickling tank 21, and the two rotating shafts are respectively connected to the two cross braces 11 through the first bearings. A rotating motor is installed on the outer side wall of the cross brace 11, and the output shaft of the rotating motor is connected to the rotating shaft (for example, through a speed reducer, and the speed reducer is installed at the side wall position of the cross brace 11); a top plate 22 is provided at the top of the pickling tank 21, and the top plate 22 is adapted to the top opening of the pickling tank 21; the top plate 22 and the top of the side wall of the pickling tank 21 are detachably connected by a spring buckle, and the top surface of the top plate 22 and the side wall of the pickling tank 21 are pressed and sealed by a sealing ring. The user can remove the top plate 22 to clean the inner cavity of the pickling tank 21 and the bottom surface of the top plate 22.

[0039] Refer to Figure 3 , a vertical stirring claw 23 is provided at the central position of the inner cavity of the pickling tank 21, and a stirring motor 24 is installed on the upper surface of the top plate 22. The output shaft of the stirring motor 24 penetrates the top plate 22 and is connected to the stirring claw 23 (for example, by bolted fixed connection); the bottom end of the side wall of the pickling tank 21 is connected and communicated with a discharge pipe 25 (for example, by welded fixed connection or by integral fixed connection), and a first valve body 26 is installed in the middle of the discharge pipe 25. The discharge pipe 25 is horizontally arranged and is located on one side of the side wall of the pickling tank 21.

[0040] The rotating motor can drive the pickling tank 21 to rotate to Figure 3 Taking the placement state of the pickling tank 21 shown as a reference: when the pickling tank 21 rotates counterclockwise, the alloy powder raw material and the pickling solution stored in the left end of the inner cavity of the discharge pipe 25 can flow into the inner cavity of the pickling tank 21. During the pickling process, the pickling tank 21 rotates counterclockwise once every 30 minutes and then resets, which can avoid the formation of a mixing blind area at the left end of the inner cavity of the discharge pipe 25; when the pickling tank 21 rotates clockwise until the right end opening of the discharge pipe 25 points to the rinsing sub-module 3, opening the first valve body 26 at this time can make the pickling solution and the alloy powder raw material mixture flow into the rinsing sub-module 3 (Refer to Figure 7 ).

[0041] Refer to Figure 1 And Figure 2 , the rinsing sub-module 3 is placed directly below the pickling sub-module 2.

[0042] Refer to Figures 2 to 6, the rinsing sub-module 3 includes a limiting cylinder 31 and a permeable water bucket 32 placed inside the cavity of the limiting cylinder 31 and capable of rotating horizontally; at the center position of the bottom surface of the permeable water bucket 32, there is a connecting shaft 33, and the connecting shaft 33 is vertically and fixedly connected to the bottom surface of the permeable water bucket 32 (for example, fixedly connected through a flange), the connecting shaft 33 is inserted and arranged at the center of the bottom plate of the limiting cylinder 31, and the connecting shaft 33 and the bottom plate of the limiting cylinder 31 are connected through a third bearing; the connecting shaft 33 and the rinsing motor 34 are connected through a belt structure; the rinsing motor 34 is installed on the outer side wall of the limiting cylinder 31; the rinsing motor 34 is placed vertically. The rinsing motor 34 can drive the permeable water bucket 32 to rotate to use centrifugal force to throw out the acid cleaning solution and the cleaning solution.

[0043] Refer to Figure 6 , the permeable water bucket 32 includes a mounting cylinder 321 and a filter screen 322; the mounting cylinder 321 is in the shape of a cylinder without a top and with a bottom, and the filter screen 322 is in the shape of a cylinder without a top and with a bottom; water permeable holes 3211 are provided at the outer edge of the bottom plate and the bottom end of the side wall of the mounting cylinder 321; the filter screen 322 is press-fitted and arranged inside the mounting cylinder 321. The bottom surface of the filter screen 322 is press-fitted on the bottom surface inside the mounting cylinder 321.

[0044] Refer to Figure 5 , the mounting cylinder 321 and the limiting cylinder 31 are connected through a second bearing 323; the inner ring of the second bearing 323 is connected to the middle upper part of the side wall of the mounting cylinder 321 (for example, fixedly connected through bolts), and the outer ring of the second bearing 323 is connected to the limiting cylinder 31 (for example, fixedly connected through bolts).

[0045] Refer to Figure 5 , the top of the limiting cylinder 31 extends inwards to form a water retaining ring 311 for shielding the second bearing 323, and the side wall of the mounting cylinder 321 is placed below the water retaining ring 311.

[0046] Refer to Figure 5 , the upper surface of the bottom plate of the limiting cylinder 31 is provided with an inclined bottom surface 312 for discharging the acid cleaning solution and the cleaning solution; a drain hole 313 is opened on the side wall of the limiting cylinder 31, and the limiting cylinder 31 is located at the lower end position of the inclined bottom surface 312. A drain hose 314 is inserted into the drain hole 313; a water valve 3141 is installed on the drain hose 314.

[0047] Refer to Figure 5 , the inclined bottom surface 312 is integrally and fixedly connected with a protective ring 3121, and the protective ring 3121 is sleeved on the outer periphery of the connecting shaft 33; the protective ring 3121 is used to prevent the acid cleaning solution / cleaning solution from dripping onto the transmission belt through the gap between the connecting shaft 33 and the bottom plate of the limiting cylinder 31.

[0048] Refer to Figure 7, a stop rod 14 is fixedly connected between two cross braces 11 and is arranged in an I-shape. The installation position of the stop rod 14 is adapted to the rotation angle of the pickling tank 21. The cross brace 11 and the stop rod 14 are fixedly connected by bolts.

[0049] The cleaning liquid is water. A sealing plate 4 that can be horizontally withdrawn is provided above the rinsing sub-module 3. The sealing plate 4 is connected to the slider of the electric slide rail, and the rail of the electric slide rail is fixedly connected to the column 12 and / or the connecting rod 13 by bolts. Nozzles are inserted and installed on the sealing plate 4. The nozzles are connected and communicated with an external water source through a water supply pipe. The water used as the cleaning liquid is injected into the permeable water bucket 32 through the nozzles for rinsing. During rinsing, the electric slide rail drives the sealing plate 4 to move above the rinsing sub-module 3 to block the top opening of the inner cavity of the limiting cylinder 31. When the electric slide rail drives the sealing plate 4 to move to open the top opening of the inner cavity of the limiting cylinder 31, the pickling tank 21 rotates and pours the pickling liquid and the alloy powder raw material mixture into the permeable water bucket 32.

[0050] A feed inlet 221 is opened on the upper top plate 22, and a door body that can be opened and closed is installed at the position of the feed inlet 221; the user opens the door body and puts the alloy powder raw material and the pickling liquid into the inner cavity of the pickling tank 21 through the feed inlet 221.

[0051] Usage steps: ① The user puts the alloy powder raw material and the pickling liquid into the inner cavity of the pickling tank 21 through the feed inlet 221; ② The stirring claw 23 rotates for stirring and pickling (during the process, the pickling tank 21 rotates counterclockwise regularly and then resets); ③ The stirring claw 23 stops rotating for static soaking; ④ The stirring claw 23 rotates again to stir up the alloy powder raw material accumulated at the bottom of the inner cavity of the pickling tank 21; ⑤ The electric slide rail drives the sealing plate 4 to move away, and the pickling tank 21 rotates clockwise until the discharge pipe 25 points to the permeable water bucket 32; ⑥ Open the first valve body 26, and the mixture of the pickling liquid and the alloy powder raw material flows into the permeable water bucket 32, and the alloy powder raw material stays in the filter screen 322, and the pickling liquid is discharged through the drain hose 314; ⑦ Close the water valve 3141, and the electric slide rail drives the sealing plate 4 to move until the opening of the inner cavity of the limiting cylinder 31 is closed; ⑧ Inject the cleaning liquid into the inner cavity of the limiting cylinder 31 through the nozzles, and the permeable water bucket 32 rotates reciprocally for washing; then open the water valve 3141, and the permeable water bucket 32 rotates in one direction at an accelerated speed for dehydration (during the process, the cleaning liquid is discharged through the drain hose 314); ⑨ After the permeable water bucket 32 stops rotating, the user takes out the filter screen 322 and the alloy powder raw material in the filter screen 322, and pours the alloy powder raw material into the vacuum drying module for drying; ⑩ After the dried alloy powder raw material is crushed, it is added to the vacuum powder feeding module and then transported to the spheroidizing module for high-temperature spheroidizing. Step ⑧ can be repeated multiple times for multiple rinses.

[0052] The first valve body 26, the second valve body, the third valve body, and the water valve 3141 are all solenoid valves.

[0053] The utility model further includes an electrical cabinet, which is fixedly installed on the surface of the workbench by bolts; the rotation motor, the stirring motor 24, the rinsing motor 34, the electric slide rail, the first valve body 26, the second valve body, the third valve body and the water valve 3141 are respectively connected to the electrical cabinet through wires and signal lines; the electrical cabinet is connected to an external power supply and an external computer through wires and signal lines respectively, and the computer controls the start and stop of the rotation motor, the stirring motor 24, the rinsing motor 34, the electric slide rail, the first valve body 26, the second valve body, the third valve body and the water valve 3141 in the utility model through the electrical cabinet.

[0054] The structure of the utility model is simple and the function is reliable. The support structure 1 plays a role in structural support. The pickling sub-module 2 is used for pickling the alloy powder raw material, and the rinsing sub-module 3 is used for rinsing the alloy powder raw material; when the stirring claw 23 rotates, it can stir and pickle, and when the stirring claw 23 stops rotating, it can stand and soak. When the permeable water bucket 32 rotates, the pickling solution and the cleaning solution in the alloy powder raw material are thrown out for rinsing. The invention provides structural support for the impurity leaching process of the alloy powder raw material, meets the industry requirements, realizes the integration of the pickling sub-module 2 and the rinsing sub-module 3 at the same time, has a high degree of automation and a small floor area, and has a broad market prospect.

[0055] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model.

[0056] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or a connection through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0057] In summary, for those skilled in the art, based on the guidance of the present utility model, without departing from the principle and spirit of the present utility model, the changes, modifications, substitutions, and deformations made to the present utility model still fall within the protection scope of the present utility model.

Claims

1. An impurity leaching module of an alloy powder prefabrication device, characterized in that: It comprises a supporting structure (1), a pickling submodule (2) and a rinsing submodule (3); The support structure (1) comprises two parallel transverse bracing beams (11) and four parallel vertical columns (12), wherein the transverse bracing beams (11) are horizontally arranged and the vertical columns (12) are vertically arranged; each of the two ends of the transverse bracing beam (11) is respectively fixedly connected to one of the vertical columns (12), and adjacent vertical columns (12) are reinforced by horizontally arranged tie rods (13); The pickling submodule (2) comprises a pickling tank (21) connected to the cross bracing beam (11) via a rotating shaft, a rotating motor is installed on the outer side wall of the cross bracing beam (11), and the output shaft of the rotating motor is connected to the rotating shaft; an upper top plate (22) is provided at the top of the pickling tank (21), a vertical stirring claw (23) is provided at the center of the inner cavity of the pickling tank (21), a stirring motor (24) is installed on the upper surface of the upper top plate (22), and the output shaft of the stirring motor (24) penetrates the upper top plate (22) and is connected to the stirring claw (23); the bottom end of the side wall of the pickling tank (21) is connected to and communicated with a discharge pipe (25), and a first valve body (26) is installed in the middle of the discharge pipe (25); The rinsing submodule (3) is placed directly below the pickling submodule (2); The rinsing submodule (3) comprises a limiting cylinder (31) and a water-permeable barrel (32) disposed in the inner cavity of the limiting cylinder (31) and capable of rotating; a connecting shaft (33) is provided at the center of the bottom surface of the water-permeable barrel (32); the connecting shaft (33) is plugged into the center of the bottom plate of the limiting cylinder (31); the connecting shaft (33) is connected to a rinsing motor (34) via a transmission belt; and the rinsing motor (34) is mounted on the outer side wall of the limiting cylinder (31).

2. The impurity leaching module of the alloy powder prefabrication device according to claim 1, characterized in that: The water-permeable bucket (32) comprises a mounting cylinder (321) and a filter screen (322); the mounting cylinder (321) is in the shape of a cylinder without a top and a bottom, and the filter screen (322) is in the shape of a cylinder without a top and a bottom; water-permeable holes (3211) are provided at the outer edge of the bottom plate and the bottom end of the side wall of the mounting cylinder (321); and the filter screen (322) is crimped and arranged in the inner cavity of the mounting cylinder (321).

3. The impurity leaching module of the alloy powder prefabrication device according to claim 2, characterized in that: The bottom surface of the filter screen (322) is pressed onto the bottom surface of the inner cavity of the installation cylinder (321).

4. The impurity leaching module of the alloy powder prefabrication device according to claim 3, characterized in that: The mounting cylinder (321) is connected to the limiting cylinder (31) via a second bearing (323); the inner ring of the second bearing (323) is connected to the middle and upper part of the side wall of the mounting cylinder (321), and the outer ring of the second bearing (323) is connected to the limiting cylinder (31).

5. The impurity leaching module of the alloy powder prefabrication device according to claim 4, characterized in that: The top of the limiting cylinder (31) extends inwardly to form a water retaining ring (311) for shielding the second bearing (323), and the side wall of the mounting cylinder (321) is placed below the water retaining ring (311).

6. The impurity leaching module of the alloy powder prefabrication device according to claim 5, characterized in that: An inclined bottom surface (312) is provided on the upper surface of the bottom plate of the limiting cylinder (31); a drainage hole (313) is provided on the side wall of the limiting cylinder (31), and the limiting cylinder (31) is located at the lower end of the inclined bottom surface (312).

7. The impurity leaching module of the alloy powder prefabrication device according to claim 6, characterized in that: A drainage hose (314) is inserted into the drainage hole (313); and a water valve (3141) is installed on the drainage hose (314).

8. The impurity leaching module of the alloy powder prefabrication device according to claim 7, characterized in that: A stop rod (14) is fixedly connected between the two cross bracing beams (11) and is arranged in an I-shape.

9. The impurity leaching module of the alloy powder prefabrication device according to claim 8, characterized in that: A sealing plate (4) capable of being laterally withdrawn is provided above the rinsing submodule (3), a nozzle is plugged and mounted on the sealing plate (4), and the nozzle is connected to an external water source via a water supply pipe.

10. The impurity leaching module of the alloy powder prefabrication device according to claim 9, characterized in that: A material feed opening (221) is provided on the upper top plate (22), and an openable and closable door is installed at the position of the material feed opening (221).

Images