CN215404450U - Plasma flame spraying equipment with gas recovery processing device - Google Patents
Plasma flame spraying equipment with gas recovery processing device Download PDFInfo
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- CN215404450U CN215404450U CN202121274913.4U CN202121274913U CN215404450U CN 215404450 U CN215404450 U CN 215404450U CN 202121274913 U CN202121274913 U CN 202121274913U CN 215404450 U CN215404450 U CN 215404450U
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Abstract
A plasma flame spraying device with a gas recovery processing device relates to the field of plasma spraying devices and comprises a gas circulation system, a spraying box, a plasma spray gun, a powder feeder and a working shaft, wherein the box wall of the spraying box is provided with an interlayer; one end of the working shaft is correspondingly connected with an output shaft of a rotating motor, the plasma spray gun is connected with a horizontal moving mechanism, the horizontal moving mechanism is driven by a vertical moving mechanism arranged on the inner wall of the top of the spraying box to vertically move, and the plasma spray gun is correspondingly connected with the powder feeder through a hose; the gas circulation system comprises a cooler, a circulating gas pump, a buffer tank and a gas storage tank which are sequentially connected in series correspondingly, the outlet of the gas storage tank is correspondingly connected with the powder feeder and the argon inlet of the plasma spray gun respectively, the inlet of the cooler is correspondingly communicated with the top of the spraying box, and the buffer tank is connected with a pressure stabilizing tank; this spraying equipment can effectively recycle argon gas, reduce cost.
Description
Technical Field
The utility model relates to the field of plasma spraying equipment, in particular to plasma flame spraying equipment with a gas recovery processing device.
Background
Plasma spraying is a technology for strengthening and modifying the surface of a material, and can ensure that the surface of a matrix has the performances of wear resistance, corrosion resistance, high-temperature oxidation resistance, electric insulation, heat insulation, radiation protection, wear reduction, sealing and the like; the core equipment of plasma spraying is a plasma spray gun, materials such as ceramics, alloys, metals and the like are heated to a molten or semi-molten state by the plasma spray gun and sprayed to the surface of a pretreated workpiece at a high speed to form a firmly attached surface layer; the utility model discloses a chinese utility model patent that publication number is CN210187481U discloses a high energy plasma spraying equipment, reaches certain high temperature through ionization argon gas and heats the spraying material to carry out the spraying in the spraying case, but do not consider the problem that argon gas was retrieved, though the nontoxic evacuation of carrying on of argon gas is handled, still can cause very big waste, increases manufacturing cost.
Disclosure of Invention
In order to overcome the defects in the background art, the utility model discloses plasma flame spraying equipment with a gas recovery processing device, which can effectively recycle argon and reduce the cost.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a plasma flame spraying device with a gas recovery processing device comprises a gas circulation system, a spraying box, a plasma spray gun, a powder feeder and a horizontal working shaft for fixing a spraying piece, wherein the plasma spray gun and the working shaft are arranged in the spraying box, and the wall of the spraying box is provided with an interlayer for introducing circulating cooling water; one end of the working shaft is correspondingly connected with an output shaft of a rotating motor, the plasma spray gun is connected with a horizontal moving mechanism for driving the plasma spray gun to move along the axial direction of the working shaft, the horizontal moving mechanism is driven by a vertical moving mechanism arranged on the inner wall of the top of the spraying box to move vertically, and the plasma spray gun is correspondingly connected with the powder feeder through a hose; gas circulation system contains and corresponds series connection's cooler, circulating air pump, buffer tank and gas holder in proper order, the export of gas holder corresponds with the argon gas import of powder feeder and plasma spray gun respectively and is connected, the import of cooler corresponds the intercommunication with the top of spraying case, the buffer tank is connected with the surge tank.
Further, a cooling groove is arranged below the working shaft in the spraying box, cooling liquid used for being in contact with the rotary lower portion of the spraying part for cooling is arranged in the cooling groove, and the spraying box is connected with a cooling device used for providing the cooling liquid.
Further, the cooling liquid is set to be liquid argon, and the cooling device is set to be liquid argon supply equipment.
Furthermore, a filter tank is connected in series on a pipeline between the cooler and the circulating air pump.
Furthermore, a drying tank is connected in series on a pipeline between the buffer tank and the gas storage tank.
Further, a pressure stabilizing pipeline is arranged between the buffer tank and the top of the spraying box, and a first electromagnetic valve, a one-way valve and a first switch valve are connected in series from the buffer tank to the spraying box through the pressure stabilizing pipeline.
Furthermore, a pipeline between the one-way valve and the first switch valve is connected with an evacuation pipeline, and a second switch valve vacuum pump is connected on the evacuation pipeline in series.
Further, a second electromagnetic valve is arranged between the buffer tank and the pressure stabilizing tank.
Furthermore, the pipelines of the gas storage tank, which are respectively connected with the powder feeder and the plasma spray gun, are provided with throttle valves.
Further, the spraying box is also provided with a box door.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
according to the plasma flame spraying equipment with the gas recovery processing device, argon in the spraying tank is recovered and reused through the cooler, the circulating air pump, the buffer tank and the air storage tank of the gas circulating system, and the pressure stabilizing tank is arranged to be used as the standby tank and the expansion tank of the buffer tank, so that the production requirement is met, and meanwhile, the production cost is greatly reduced.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
In the figure: 1. a powder feeder; 2. a vertical moving mechanism; 3. a plasma torch; 4. a working shaft; 5. a spraying box; 6. a horizontal movement mechanism; 7. rotating the motor; 8. cooling liquid; 9. a cooler; 10. a filter tank; 11. a circulating air pump; 12. a surge tank; 13. a second solenoid valve; 14. a buffer tank; 15. a first solenoid valve; 16. a drying tank; 17. a one-way valve; 18. a gas storage tank; 19. a throttle valve; 20. a first on-off valve; 21. a second on-off valve; 22. a vacuum pump; 23. and a cooling device.
Detailed Description
The present invention will be explained in detail by the following examples, which are intended to disclose the utility model and protect all technical improvements within the scope of the utility model, and the utility model is not limited to the following examples; in the description of the present invention, it should be understood that, if there is an orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., which corresponds to the drawings of the present application, the present invention is described for convenience, but does not indicate or imply that the indicated device or element must have a particular orientation:
the plasma flame spraying equipment with the gas recovery processing device described in the attached figure 1 comprises a gas circulation system, a spraying box 5, a plasma spray gun 3, a powder feeder 1 and a horizontal working shaft 4 for fixing a spraying piece, wherein the spraying box 5 is provided with a box door, so that a workpiece and personnel can conveniently enter and exit, and the plasma spray gun 3 can be a radio frequency alternating current plasma spray gun or a direct current plasma spray gun according to needs; the plasma spray gun 3 and the working shaft 4 are arranged in the spraying box 5, an interlayer for introducing circulating cooling water is arranged on the box wall of the spraying box 5, the cooling water is circularly introduced into the interlayer of the spraying box 5 to play a role in cooling, and in order to ensure the purity of gas recovery, the ionized gas, the protective gas of the plasma spray gun 3 and the powder feeding gas of the powder feeder 1 all adopt uniform inert gases, such as argon; one end of the working shaft 4 is correspondingly connected with an output shaft of a rotating motor 7, a spraying piece is arranged on the working shaft 4, the rotating motor 7 is utilized to drive the working shaft 4 to rotate, and further the spraying piece is driven to rotate to carry out circumferential spraying on the outer surface of the spraying piece, the rotating motor 7 can be arranged inside or outside the spraying box 5 according to needs, and when the rotating motor 7 is arranged inside the spraying box 5, an explosion-proof motor is preferably adopted; the plasma spray gun 3 is connected with a horizontal moving mechanism 6 for driving the plasma spray gun 3 to axially move along a working shaft 4, the horizontal moving mechanism 6 is driven by a vertical moving mechanism 2 arranged on the inner wall of the top of a spraying box 5 to vertically move, the plasma spray gun 3 is correspondingly connected with a powder feeder 1 through a hose, the horizontal moving mechanism 6 can be set as an air cylinder to drive the plasma spray gun 3 to move to axially spray a sprayed part, the vertical moving mechanism 2 can be set as a linear guide rail assembly to drive the horizontal moving mechanism 6 and the plasma spray gun 3 to vertically move, the distance between the plasma spray gun 3 and the sprayed part is adjusted, the powder feeder 1 is used for introducing argon gas to convey powder materials to the plasma spray gun 3, the hose connected with the plasma spray gun 3 needs to pass through the spraying box 5 in a sealing mode, and does not hinder the plasma spray gun 3 from moving;
the gas circulation system comprises a cooler 9, a circulating gas pump 11, a buffer tank 14 and a gas storage tank 18 which are sequentially and correspondingly connected in series, the outlet of the gas storage tank 18 is correspondingly connected with the argon inlets of the powder feeder 1 and the plasma spray gun 3 respectively, and the pipelines of the gas storage tank 18, which are respectively connected with the powder feeder 1 and the plasma spray gun 3, are provided with throttle valves 19 according to requirements, and the gas inlet flow is controlled by the throttle valves 19; the inlet of the cooler 9 is correspondingly communicated with the top of the spraying box 5, the cooler 9 is used for cooling high-temperature argon, the circulating air pump 11 is used for providing gas circulating power, the buffer tank 14 is connected with the surge tank 12, the surge tank 12 plays a role in standby and expansion and plays a role in buffering, and the whole gas circulating system cannot be absolutely sealed, so that argon always leaks after long-time operation, and the surge tank 12 can also supplement initial argon and argon consumed in the process by connecting an external pipeline; according to the requirement, a second electromagnetic valve 13 is arranged between the buffer tank 14 and the pressure stabilizing tank 12, and the second electromagnetic valve 13 is controlled to be automatically opened and closed to stabilize the pressure according to the pressure of the buffer tank 14; in addition, a filtering tank 10 is connected in series on a pipeline between the cooler 9 and the circulating air pump 11 and is used for filtering impurities such as powder and the like to prevent the influence on air circulation; in addition, a drying tank 16 is connected in series on a pipeline between the buffer tank 14 and the gas storage tank 18 and is used for drying gas;
according to the requirement, a pressure stabilizing pipeline is arranged between the buffer tank 14 and the top of the spraying box 5, the pressure stabilizing pipeline is connected with a first electromagnetic valve 15, a one-way valve 17 and a first switch valve 20 in series in a conducting mode from the buffer tank 14 to the spraying box 5, argon is directly introduced into the spraying box 5 through the buffer tank 14, firstly, before the plasma spray gun 3 is used for spraying, argon is required to be filled into the spraying box 5 to serve as protective gas, and secondly, the phenomenon that the pressure of the spraying box 5 is unstable due to direct leakage is prevented; in addition, a pipeline between the one-way valve 17 and the first switch valve 20 is connected with an evacuation pipeline, a second switch valve 21 and a vacuum pump 22 are connected in series on the evacuation pipeline, and the vacuum pump 22 is used for evacuating air in the spraying box 5 and the gas circulation system before spraying, so that the phenomenon that the work and the final spraying effect of the plasma spray gun are influenced due to impure argon is prevented;
in order to obtain an amorphous coating, the part of a sprayed piece just sprayed needs to be rapidly cooled, a cooling tank is arranged below a working shaft 4 in a spraying box 5, cooling liquid 8 used for cooling the rotary lower part of the sprayed piece in a contact manner is arranged in the cooling tank, or liquid argon is introduced into the sprayed piece for cooling according to the shape of a workpiece, and the spraying box 5 is connected with a cooling device 23 used for supplying the cooling liquid 8; according to the requirement, the cooling liquid 8 is liquid argon, the cooling device 23 is liquid argon providing equipment, the cooling effect of the liquid argon is better, the influence on the purity of the recycled argon is small, the argon is continuously consumed due to gasification, the argon is required to be continuously provided by external liquid argon providing equipment, meanwhile, the argon overflowing from the pressure stabilizing tank 12 is also required to be emptied or continuously provided to the liquid argon providing equipment for recycling, and in addition, the consumption of the liquid argon can be reduced by introducing cooling water into the interlayer of the spraying tank 5;
according to the requirement, the utility model is also provided with a control device which is set as a PLC or a DCS or a single chip microcomputer, the control device is respectively connected with the throttle valve 19, the first switch valve 20, the second switch valve 21, the first electromagnetic valve 15 and the first electromagnetic valve 13 through signals, in addition, the air storage tank 18, the pressure stabilizing tank 12, the buffer tank 14 and the spraying box 5 are all provided with pressure transmitters for detecting pressure and feeding back signals, the front and the back of the filter tank 10 and the drying tank 16 are both provided with differential pressure transmitters, and the pressure transmitters and the differential pressure transmitters are both connected with the control device through signals.
The present invention is not described in detail in the prior art.
Claims (10)
1. The utility model provides a take gas recovery processing apparatus's plasma flame spraying equipment which characterized in that: the device comprises a gas circulation system, a spraying box (5), a plasma spray gun (3), a powder feeder (1) and a horizontal working shaft (4) for fixing a spraying piece, wherein the plasma spray gun (3) and the working shaft (4) are arranged in the spraying box (5), and the wall of the spraying box (5) is provided with an interlayer for introducing circulating cooling water; one end of the working shaft (4) is correspondingly connected with an output shaft of a rotating motor (7), the plasma spray gun (3) is connected with a horizontal moving mechanism (6) for driving the plasma spray gun (3) to move axially along the working shaft (4), the horizontal moving mechanism (6) is driven by a vertical moving mechanism (2) arranged on the inner wall of the top of the spraying box (5) to move vertically, and the plasma spray gun (3) is correspondingly connected with the powder feeder (1) through a hose; gas circulation system contains and corresponds series connection's cooler (9), circulating air pump (11), buffer tank (14) and gas holder (18) in proper order, the export of gas holder (18) corresponds with the argon gas import of sending powder ware (1) and plasma spray gun (3) respectively and is connected, the import of cooler (9) corresponds the intercommunication with the top of spraying case (5), buffer tank (14) are connected with surge tank (12).
2. The plasma flame spraying apparatus with a gas recovery processing device according to claim 1, characterized in that: the spraying device is characterized in that a cooling groove is arranged below the working shaft (4) in the spraying box (5), cooling liquid (8) used for being in contact with the lower part of a rotary spraying part for cooling is arranged in the cooling groove, and the spraying box (5) is connected with a cooling device (23) used for providing the cooling liquid (8).
3. The plasma flame spraying apparatus with a gas recovery processing device according to claim 2, characterized in that: the cooling liquid (8) is set to be liquid argon, and the cooling device (23) is set to be liquid argon supply equipment.
4. The plasma flame spraying apparatus with a gas recovery processing device according to claim 1, characterized in that: and a filtering tank (10) is connected in series on a pipeline between the cooler (9) and the circulating air pump (11).
5. The plasma flame spraying apparatus with a gas recovery processing device according to claim 1, characterized in that: a drying tank (16) is connected in series on a pipeline between the buffer tank (14) and the air storage tank (18).
6. The plasma flame spraying apparatus with a gas recovery processing device according to claim 1, characterized in that: a pressure stabilizing pipeline is arranged between the buffer tank (14) and the top of the spraying box (5), and a first electromagnetic valve (15), a one-way valve (17) and a first switch valve (20) are connected in series from the buffer tank (14) to the spraying box (5) in a conducting mode.
7. The plasma flame spraying apparatus with a gas recovery processing device according to claim 6, characterized in that: and a pipeline between the one-way valve (17) and the first switch valve (20) is connected with an evacuation pipeline, and a second switch valve (21) and a vacuum pump (22) are connected on the evacuation pipeline in series.
8. The plasma flame spraying apparatus with a gas recovery processing device according to claim 1, characterized in that: and a second electromagnetic valve (13) is arranged between the buffer tank (14) and the pressure stabilizing tank (12).
9. The plasma flame spraying apparatus with a gas recovery processing device according to claim 1, characterized in that: and throttle valves (19) are arranged on pipelines of the gas storage tank (18) respectively connected with the powder feeder (1) and the plasma spray gun (3).
10. The plasma flame spraying apparatus with a gas recovery processing device according to claim 1, characterized in that: the spraying box (5) is also provided with a box door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121274913.4U CN215404450U (en) | 2021-06-08 | 2021-06-08 | Plasma flame spraying equipment with gas recovery processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121274913.4U CN215404450U (en) | 2021-06-08 | 2021-06-08 | Plasma flame spraying equipment with gas recovery processing device |
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| Publication Number | Publication Date |
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| CN215404450U true CN215404450U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121274913.4U Active CN215404450U (en) | 2021-06-08 | 2021-06-08 | Plasma flame spraying equipment with gas recovery processing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485053A (en) * | 2022-01-28 | 2022-05-13 | 东南大学 | Control configuration system capable of self-adapting to industrial argon purification and recovery fluctuation |
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2021
- 2021-06-08 CN CN202121274913.4U patent/CN215404450U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485053A (en) * | 2022-01-28 | 2022-05-13 | 东南大学 | Control configuration system capable of self-adapting to industrial argon purification and recovery fluctuation |
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