CN217912852U - Plasma powder feeding device - Google Patents
Plasma powder feeding device Download PDFInfo
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- CN217912852U CN217912852U CN202221705678.6U CN202221705678U CN217912852U CN 217912852 U CN217912852 U CN 217912852U CN 202221705678 U CN202221705678 U CN 202221705678U CN 217912852 U CN217912852 U CN 217912852U
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- powder feeding
- plasma gas
- plasma
- gas seat
- powder
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- 239000000843 powder Substances 0.000 title claims abstract description 123
- 230000008676 import Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 54
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011858 nanopowder Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model relates to a plasma powder feeding device, including plasma gas seat and powder feeding gun, set up the import that supplies the powder feeding gun to insert on the plasma gas seat, the export of powder feeding gun stretches into the inside of plasma gas seat, the trompil that sets up of slope is seted up to the one end at plasma gas seat import place, the trompil is evenly arranged along plasma gas seat circumference interval a plurality ofly, the axial of trompil forms the contained angle with the axle center of plasma gas seat; a plurality of air inlets are formed in one end, far away from the inlet, of the plasma gas seat, the air inlets are distributed along the circumferential direction of the plasma gas seat, and the axial direction of the air inlets is consistent with the axial direction of the plasma gas seat. The utility model has the advantages of improve production efficiency.
Description
Technical Field
The utility model belongs to the technical field of the technique of powder feeding device and specifically relates to a plasma powder feeding device is related to.
Background
The existing preparation method of the mature spheroidized powder comprises an air atomization method, a rotary electrode method and the like, other technologies only can put bar stocks or metal wires into a high-temperature area to cause the defects of uneven material crushing and the like, and a powder feeding device does not need to be put into the highest temperature area of flame.
The radio frequency plasma is used as a heat source, so that the preparation of the nano powder material and the spheroidization of the micron and submicron powder material have great technical advantages. The radio frequency plasma has the characteristics of high temperature, high enthalpy, high activity and large temperature gradient, and is convenient to widely popularize due to the advantages of no impurity, continuous and stable operation, high material treatment capacity, moderate equipment cost and the like.
However, in the existing processing process, the problems of irregular particle shapes, ellipsoid shapes, satellite balls, hollow balls and the like are easily caused, so that the production efficiency of spherical powder is low, and the large-scale production is not easy to realize.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a plasma send whitewashed device, its advantage that has improvement production efficiency to the not enough of prior art existence.
The above object of the present invention can be achieved by the following technical solutions:
a plasma powder feeding device comprises a plasma gas seat and a powder feeding gun, wherein an inlet for inserting the powder feeding gun is formed in the plasma gas seat, an outlet of the powder feeding gun extends into the plasma gas seat, an obliquely arranged opening is formed in one end, where the plasma gas seat inlet is located, a plurality of openings are uniformly distributed at intervals along the circumferential direction of the plasma gas seat, and an included angle is formed between the axial direction of each opening and the axis of the plasma gas seat;
a plurality of air inlets are formed in one end, far away from the inlet, of the plasma gas seat, the air inlets are distributed along the circumferential direction of the plasma gas seat, and the axial direction of the air inlets is consistent with the axial direction of the plasma gas seat.
By adopting the technical scheme, when powder particles to be processed are input, plasma gas is introduced into the opening, and the plasma gas is spirally input downwards through the inclined opening to ionize the gas; meanwhile, the upwarp gas is input into the air inlet hole and is vertically input downwards to achieve a cooling effect. This application is through changing the mode of gas distribution for the powder is processed into normalized spherical powder more easily when processing, improves the machining efficiency of product.
The utility model discloses further set up to: the powder feeding gun is characterized by further comprising a base arranged on one side of the plasma gas seat, and one end, far away from the plasma gas seat, of the powder feeding gun is inserted on the base and penetrates through the base.
The utility model discloses further set up to: the powder feeding gun comprises a hollow powder inlet pipe, a middle pipe and an outer pipe which are coaxially arranged, the powder inlet pipe is inserted into the middle pipe, the inner diameter of the middle pipe and the outer diameter of the powder inlet pipe are separated to form a water outlet cavity, the middle pipe is inserted into the outer pipe, the inner diameter of the outer pipe and the outer diameter of the middle pipe are separated to form a water inlet cavity, and the water inlet cavity is communicated with the water outlet cavity; the base is provided with a water inlet passage communicated with the water inlet cavity, and the base is provided with a water outlet passage communicated with the water outlet cavity.
Through adopting above-mentioned technical scheme, add water-cooling circulation structure in powder feeding gun inside to cooling down powder feeding gun, reducing the possibility that leads to powder feeding gun to damage because of the high temperature characteristic of radio frequency plasma, improve powder feeding device's life.
The utility model discloses further set up to: the powder feeding gun is characterized in that a water inlet clamping sleeve connector is arranged at one end, away from the powder feeding gun, of the water inlet passage, and a water outlet clamping connector is arranged at one end, away from the powder feeding gun, of the water outlet passage.
By adopting the technical scheme, in the using process, the water inlet clamping sleeve joint and the water outlet clamping joint are connected with the external cooling equipment, cooling water enters the powder feeding gun through the water inlet passage and passes through the water inlet cavity, and then flows out of the water outlet passage through the water outlet cavity and enters the cooling equipment, so that the powder feeding gun is cooled.
The utility model discloses further set up to: the water inlet clamping sleeve joint is arranged at one end, close to the plasma gas seat, of the base, and the water outlet clamping sleeve joint is arranged at one end, far away from the plasma gas seat, of the base.
The utility model discloses further set up to: the powder feeding gun is characterized in that a fixed threaded shaft sleeve is sleeved outside the powder feeding gun and is in threaded connection with the plasma gas seat.
By adopting the technical scheme, when the powder feeding device is assembled, the fixed threaded shaft sleeve is inserted into the inlet, and the fixed threaded shaft sleeve is screwed to enable the powder feeding gun to be in threaded connection with the plasma gas seat, so that the powder feeding gun is fixed on the plasma gas seat.
The utility model discloses further set up to: the powder feeding gun comprises a powder feeding gun body, a fixed thread shaft sleeve and a plurality of fixing screw rods, wherein the powder feeding gun body is provided with a plurality of fixing screw rods, and the plurality of fixing screw rods are uniformly distributed along the circumferential direction of the powder feeding gun body at intervals.
By adopting the technical scheme, the movable powder feeding gun can adjust the distance between the outlet and the plasma torch induction coil to meet the requirements of processing of powder with different melting points and boiling points, and the application range of the powder feeding device is enlarged.
The utility model discloses further set up to: one end of the powder feeding gun inserted into the plasma gas seat is provided with a semi-circle bushing, and the middle part of the semi-circle bushing is provided with a powder outlet communicated with the powder inlet pipe.
Through adopting above-mentioned technical scheme, half circle bush and powder feeding gun intercommunication to formed and be used for spouting the nozzle of treating the processing powder.
To sum up, the utility model discloses a beneficial technological effect does:
1. according to the method, the gas distribution mode is changed, so that the powder particles are more easily processed into standard spherical powder during processing, and the processing efficiency of the product is improved;
2. the powder feeding gun is internally provided with the water cooling circulation structure, so that the powder feeding gun is cooled, the possibility of damage to the powder feeding gun due to the high-temperature characteristic of the radio frequency plasma is reduced, and the service life of the powder feeding device is prolonged;
3. the distance between the outlet and the plasma torch induction coil can be adjusted by the movable powder feeding gun to meet the requirements of processing of powder with different melting points and boiling points, and the application range of the powder feeding device is expanded.
Drawings
FIG. 1 is a schematic view of the overall structure of a powder feeder;
FIG. 2 is a cross-sectional view of a plasma gas holder;
FIG. 3 is a cross-sectional view of the plasma gas seat at the aperture;
FIG. 4 is a cross-sectional view of the powder delivery gun;
fig. 5 is an enlarged view of a portion a in fig. 4.
In the figure, 1, a plasma gas holder; 11. opening a hole; 12. an air inlet; 2. a powder feeding gun; 21. a powder inlet pipe; 22. an intermediate pipe; 23. an outer tube; 24. a water outlet cavity; 25. a water inlet cavity; 26. a half-turn bushing; 3. An inlet; 4. a base; 41. a water inlet passage; 42. a water outlet passage; 43. a water inlet ferrule connector; 44. a water outlet ferrule connector; 5. fixing the threaded shaft sleeve; 51. and fixing the screw rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a plasma powder feeding device, including inside cavity and both ends open-ended plasma gas seat 1, plasma gas seat 1 becomes under narrow wide form, and upper portion is import 3, is provided with the internal thread on the 3 inner walls of import.
Referring to fig. 2 and 3, a plurality of openings 11 are formed in the side wall of the end where the inlet 3 is located, the openings 11 are radially inclined relative to the plasma gas holder 1, so that an included angle is formed between the axial direction of the openings 11 and the axis of the plasma gas holder 1, and the plurality of openings 11 are uniformly arranged along the circumferential direction of the plasma gas holder 1 at intervals. A plurality of air inlets 12 are opened at one end of the plasma gas seat 1 far away from the inlet 3, the axial direction of the air inlets 12 is consistent with the axial direction of the plasma gas seat 1, and the air inlets 12 are uniformly distributed along the circumferential direction of the plasma gas seat 1 at intervals.
Referring to fig. 1, the plasma torch further comprises a base 4 arranged on one side of the plasma gas holder 1, the powder feeding gun 2 is inserted into the base 4 in a penetrating manner, and one end, far away from the base 4, of the powder feeding gun 2 penetrates through the inlet 3 and is inserted into the plasma gas holder 1. The outside cover of powder feeding gun 2 is equipped with fixed screw thread axle sleeve 5, and fixed screw thread axle sleeve 5 sets up in 3 departments of import, is provided with the identical external screw thread of internal thread on the fixed screw thread axle sleeve 5 for fixed screw thread axle sleeve 5 and 1 threaded connection of plasma gas seat.
Referring to fig. 1 and 3, the internal diameter of fixed thread axle sleeve 5 is greater than the external diameter of powder feeding rifle 2 and makes powder feeding rifle 2 and fixed thread axle sleeve 5 sliding connection, it is equipped with a plurality of clamping screw 51 to insert on the 5 outer walls of fixed thread axle sleeve, each clamping screw 51 all radially sets up along fixed thread axle sleeve 5, clamping screw 51 inserts the one end of fixed thread axle sleeve 5 and the butt of powder feeding rifle 2 outer walls, a plurality of clamping screw 51 are evenly arranged along powder rifle circumference interval. The distance between the outlet and the plasma torch induction coil can be adjusted by the movable powder feeding gun 2 to meet the requirements of processing of powder with different melting points and boiling points, and the application range of the powder feeding device is expanded.
Referring to fig. 3 and 4, the powder feeding gun 2 includes a hollow powder feeding tube 21, a middle tube 22 and an outer tube 23 which are coaxially arranged, the length of the powder feeding tube 21 is greater than that of the middle tube 22, the length of the middle tube 22 is greater than that of the outer tube 23, the powder feeding tube 21 is inserted in the middle tube 22, an outlet cavity 24 is formed by the inner diameter of the middle tube 22 and the outer diameter of the powder feeding tube 21 at intervals, the middle tube 22 is inserted in the outer tube 23, an inlet cavity 25 is formed by the inner diameter of the outer tube 23 and the outer diameter of the middle tube 22 at intervals, and the inlet cavity 25 is communicated with the outlet cavity 24. A water inlet ferrule connector 43 is in threaded connection with one end of the base 4 close to the plasma gas seat 1, a water inlet passage 41 is formed between the water inlet ferrule connector 43 and the water inlet cavity 25, a water outlet ferrule connector 44 is in threaded connection with one end of the base 4 far away from the plasma gas seat 1, and a water outlet passage 42 is formed between the water outlet ferrule connector 44 and the water outlet cavity 24. In the use, with the outside cooling arrangement of water inlet ferrule joint 43 and the joint connection of play water card, cooling water gets into powder feeding gun 2 in and through intake antrum 25 through water inlet path 41, then flows out and gets into cooling arrangement from water outlet path 42 through play water cavity 24, cools down powder feeding gun 2 with the help of the water-cooling circulation structure, reduces the possibility that causes powder feeding gun 2 to damage because of the high temperature characteristic of radio frequency plasma, improves the life of powder feeding device.
Referring to fig. 3, one end of the powder feeding gun 2 inserted into the plasma gas holder 1 is provided with a half-circle bushing 26, and the middle part of the half-circle bushing 26 is provided with a powder outlet communicated with the powder inlet pipe 21. The half-ring bushing 26 and the outer pipe 23 are welded and connected fixedly to form a nozzle, and powder to be processed is sprayed out from the powder outlet.
The implementation principle of the embodiment is as follows: when powder particles to be processed are input, plasma gas is introduced into the open hole 11, and the plasma gas is spirally input downwards through the inclined open hole 11 to ionize the gas; meanwhile, the upwarping gas is input into the air inlet holes 12 and is vertically input downwards to achieve the cooling effect. This application is through changing the mode of gas distribution for the powder is processed into normalized spherical powder more easily when processing, improves the machining efficiency of product. Meanwhile, the powder feeding gun 2 is cooled through the internal water-cooling circulating structure, the possibility that the powder feeding gun 2 is damaged due to the high-temperature characteristic of the radio frequency plasma is reduced, and the service life of the powder feeding device is prolonged.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. A plasma powder feeding device is characterized in that: the plasma powder feeding device comprises a plasma gas seat (1) and a powder feeding gun (2), wherein an inlet (3) for inserting the powder feeding gun (2) is formed in the plasma gas seat (1), an outlet of the powder feeding gun (2) extends into the plasma gas seat (1), one end of the inlet (3) of the plasma gas seat (1) is provided with a hole (11) which is obliquely arranged, the hole (11) is uniformly distributed along the circumferential direction of the plasma gas seat (1), and the axial direction of the hole (11) forms an included angle with the axial center of the plasma gas seat (1);
a plurality of air inlets (12) have been seted up to plasma gas seat (1) one end of keeping away from import (3), and a plurality of air inlets (12) are arranged along plasma gas seat (1) circumference, and air inlet (12) axial is unanimous with plasma gas seat (1) axial.
2. The plasma powder feeding device according to claim 1, characterized in that: the plasma powder feeding device is characterized by further comprising a base (4) arranged on one side of the plasma gas base (1), wherein one end, far away from the plasma gas base (1), of the powder feeding gun (2) is inserted into the base (4) and penetrates through the base (4).
3. The plasma powder feeding device according to claim 2, characterized in that: the powder feeding gun (2) comprises a hollow powder inlet pipe (21), a middle pipe (22) and an outer pipe (23) which are coaxially arranged, the powder inlet pipe (21) is inserted in the middle pipe (22), a water outlet cavity (24) is formed by the inner diameter of the middle pipe (22) and the outer diameter of the powder inlet pipe (21) at intervals, the middle pipe (22) is inserted in the outer pipe (23), a water inlet cavity (25) is formed by the inner diameter of the outer pipe (23) and the outer diameter of the middle pipe (22) at intervals, and the water inlet cavity (25) is communicated with the water outlet cavity (24); the base (4) is provided with a water inlet passage (41) communicated with the water inlet cavity (25), and the base (4) is provided with a water outlet passage (42) communicated with the water outlet cavity (24).
4. The plasma powder feeding device according to claim 3, characterized in that: one end of the water inlet passage (41) far away from the powder feeding gun (2) is provided with a water inlet clamping sleeve joint (43), and one end of the water outlet passage (42) far away from the powder feeding gun (2) is provided with a water outlet clamping sleeve joint (44).
5. The plasma powder feeding device according to claim 4, characterized in that: the water inlet ferrule connector (43) is arranged at one end, close to the plasma gas seat (1), of the base (4), and the water outlet ferrule connector (44) is arranged at one end, far away from the plasma gas seat (1), of the base (4).
6. The plasma powder feeding device according to claim 3, characterized in that: the powder feeding gun is characterized in that a fixed threaded shaft sleeve (5) is sleeved outside the powder feeding gun (2), and the fixed threaded shaft sleeve (5) is in threaded connection with the plasma gas seat (1).
7. The plasma powder feeding device according to claim 6, characterized in that: the powder feeding gun is characterized in that the fixed threaded shaft sleeve (5) is in sliding connection with the powder feeding gun (2), a plurality of fixing screw rods (51) are inserted into the fixed threaded shaft sleeve (5), and the plurality of fixing screw rods (51) are uniformly distributed at intervals along the circumferential direction of the powder feeding gun (2).
8. The plasma powder feeding device according to claim 7, characterized in that: one end of the powder feeding gun (2) inserted into the plasma gas seat (1) is provided with a semi-circle bushing (26), and the middle part of the semi-circle bushing (26) is provided with a powder outlet communicated with the powder inlet pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221705678.6U CN217912852U (en) | 2022-07-01 | 2022-07-01 | Plasma powder feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221705678.6U CN217912852U (en) | 2022-07-01 | 2022-07-01 | Plasma powder feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217912852U true CN217912852U (en) | 2022-11-29 |
Family
ID=84187110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221705678.6U Active CN217912852U (en) | 2022-07-01 | 2022-07-01 | Plasma powder feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217912852U (en) |
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2022
- 2022-07-01 CN CN202221705678.6U patent/CN217912852U/en active Active
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