CN215893208U - High-temperature sintering device for molybdenum plug - Google Patents
High-temperature sintering device for molybdenum plug Download PDFInfo
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- CN215893208U CN215893208U CN202122335843.5U CN202122335843U CN215893208U CN 215893208 U CN215893208 U CN 215893208U CN 202122335843 U CN202122335843 U CN 202122335843U CN 215893208 U CN215893208 U CN 215893208U
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Abstract
The utility model discloses a high-temperature sintering device for a molybdenum plug, which comprises a preheating chamber, a sintering chamber and a cooling chamber, wherein the preheating chamber is arranged in the sintering chamber; the preheating chamber, the sintering chamber and the cooling chamber are provided with feed pipes in a penetrating manner, the inner wall of the sintering chamber is provided with a high-temperature-resistant lining, a condenser is arranged in the cooling chamber, a heat exchanger is arranged between the preheating chamber and the cooling chamber, the cooling chamber is connected with a first heat conduction pipe and a first cold conduction pipe, the other end of the first heat conduction pipe is connected with the heat exchanger, and the other end of the first cold conduction pipe is connected with the heat exchanger; the preheating chamber is connected with a second heat conduction pipe and a second cold conduction pipe, the other end of the second heat conduction pipe is connected with the heat exchanger, the other end of the second cold conduction pipe is connected with the heat exchanger, and the first heat conduction pipe is provided with a heat conduction mechanism; the heat conduction mechanism can be used for rapidly leading hot gas in the cooling chamber into the heat exchanger, so that the cooling efficiency and the heat exchange efficiency are greatly improved, and meanwhile, the temperature of the preheating chamber is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of high-temperature sintering, and particularly relates to a high-temperature sintering device for a molybdenum plug.
Background
The molybdenum plug is a key tool for producing stainless steel, heat-resistant steel, bearing steel and other special alloy steel pipes. At present, the TM plug produced by a fusion casting method is developed into a molybdenum alloy plug produced by a powder metallurgy method, such as TZM, TZC, TZCR and the like, the perforating performance is gradually improved, particularly, the molybdenum plug manufactured by the processes of isostatic pressing, intermediate frequency furnace sintering and the like has excellent performance, and the material has good high-temperature strength and wear resistance, good thermal conductivity and shock resistance.
At present, a preheating chamber, a sintering chamber and a cooling chamber are generally arranged at the molybdenum plug sintering stage, but when the molybdenum plug is cooled, redundant heat can be rarely recycled, a large amount of heat energy loss is caused, the molybdenum plug is not beneficial to cooling, and the cooling efficiency is low.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a high-temperature sintering device for a molybdenum plug, which solves the problems in the background art, and achieves the effect of energy conservation by recycling redundant heat energy in a cooling chamber through arranging a heat exchanger and utilizing the redundant heat energy in a preheating chamber; the heat conduction mechanism can be used for rapidly leading hot gas in the cooling chamber into the heat exchanger, so that the cooling efficiency and the heat exchange efficiency are greatly improved, and meanwhile, the temperature of the preheating chamber is guaranteed.
The utility model provides the following technical scheme:
a high-temperature sintering device for a molybdenum plug comprises a preheating chamber, a sintering chamber and a cooling chamber; the preheating chamber, the sintering chamber and the cooling chamber are provided with feed pipes in a penetrating manner, the inner wall of the sintering chamber is provided with a high-temperature-resistant lining, a condenser is arranged in the cooling chamber, a heat exchanger is arranged between the preheating chamber and the cooling chamber, the cooling chamber is connected with a first heat conduction pipe and a first cold conduction pipe, the other end of the first heat conduction pipe is connected with the heat exchanger, and the other end of the first cold conduction pipe is connected with the heat exchanger; the preheating chamber is connected with a second heat conduction pipe and a second cold conduction pipe, the other end of the second heat conduction pipe is connected with the heat exchanger, the other end of the second cold conduction pipe is connected with the heat exchanger, and the first heat conduction pipe is provided with a heat conduction mechanism.
Preferably, the heat conducting mechanism comprises a shell, a first partition plate and a second partition plate are arranged inside the shell, a compression cavity is arranged between the first partition plate and the second partition plate, a first air guide valve and a second air guide valve are arranged at the positions, close to the upper end part and the lower end part, of the first partition plate, and a third air guide valve and a fourth air guide valve are arranged at the positions, close to the upper end part and the lower end part, of the second partition plate.
Preferably, a piston plate is arranged in the compression cavity, a moving rod is connected to one side of the piston plate, the moving rod penetrates through the wall of the shell, and the moving rod and the shell form matching sliding connection.
Preferably, the top of the shell is connected with a supporting rod, the supporting rod is connected with a motor, the motor drives an eccentric wheel, the eccentric wheel is connected with a connecting rod, and the other end of the connecting rod is rotatably connected with the moving rod through a pin shaft.
Preferably, air doors are arranged on one sides, close to the compression cavity, of the first air guide door and the second air guide door, and the air doors are rotatably connected with the first partition plate through hinges; and air doors are arranged on one sides, far away from the compression cavity, of the third air guide door and the fourth air guide door and are rotatably connected with the second partition plate through hinges.
Preferably, both sides of the shell are communicated with the first air duct.
Preferably, the heat exchanger is a gas-gas heat exchanger; and a condenser is arranged at the bottom of the cooling chamber.
Preferably, the sintering chamber is heated by a medium-frequency heater, the feeding pipe is made of high-temperature-resistant materials, a transmission device is arranged inside the feeding pipe, the feeding pipe firstly feeds the molybdenum plug into the preheating chamber to be preheated in the sintering process, then feeds the molybdenum plug into the sintering chamber to be sintered at high temperature, and finally feeds the molybdenum plug into the cooling chamber to be cooled so as to improve the rigidity and hardness of the molybdenum plug.
In addition, in the process of heat exchange, heat exchange is rapidly realized through the heat conduction mechanism arranged on the first heat conduction pipe, in the process that the heat conduction mechanism guides hot air in the cooling chamber into the heat exchanger, the motor is started, the motor drives the eccentric wheel and the connecting rod, the connecting rod drives the moving rod and the piston plate to do reciprocating motion, when the piston plate moves upwards, negative pressure is formed at the lower part of the compression cavity, an air door arranged on the second air guide door is opened under the action of the negative pressure, and the hot air in the first heat conduction pipe rapidly enters the compression cavity from the first air guide door; the upper part of the opposite compression cavity forms a pressure area, and the air door of the first air guide valve is in a closed state under the action of pressure; at this moment, because the air door of the fourth air guide valve is arranged outside the compression cavity and closed under the action of negative pressure, the air door of the third air guide valve is arranged outside the compression cavity and opened under the action of pressure, hot air above the compression cavity is in an open state along with the third air guide valve and under the action of pressure, and the hot air enters the first heat conduction pipe close to one end of the heat exchanger quickly from the third air guide valve and then enters the heat exchanger for heat exchange. When the piston plate moves downwards, the work is kept away from the same, the working state is opposite, the hot gas below the compression cavity is along with the opening state of the fourth air guide valve and is acted by pressure, the hot gas quickly enters the first heat guide pipe close to one end of the heat exchanger from the fourth air guide valve, then enters the heat exchanger for heat exchange, and the hot gas in the first heat guide pipe rapidly and uninterruptedly enters the heat exchanger through the up-and-down reciprocating motion of the piston plate, so that the heat exchange efficiency is improved, and the heat loss is reduced.
Compared with the prior art, the utility model has the following beneficial effects:
(1) according to the high-temperature sintering device for the molybdenum plug, the first heat conduction pipe, the first cold conduction pipe, the second heat conduction pipe and the second cold conduction pipe are connected with the heat exchanger, redundant heat energy in the cooling chamber is recovered and is recycled in the preheating chamber, and the effect of saving energy is achieved.
(2) According to the high-temperature sintering device for the molybdenum plug, the heat conducting mechanism is arranged, so that hot gas in the cooling chamber can be quickly introduced into the heat exchanger, the cooling efficiency and the heat exchange efficiency are greatly improved, and meanwhile, the temperature of the preheating chamber is guaranteed.
(3) According to the high-temperature sintering device for the molybdenum plug, the piston plate is indirectly driven by the motor to reciprocate up and down, so that hot air in the first heat conduction pipe can rapidly and uninterruptedly enter the heat exchanger, the heat exchange efficiency is improved, and the heat loss is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the heat conducting mechanism of the present invention.
Fig. 3 is a schematic view of a motor driving structure of the present invention.
In the figure: 1. a preheating chamber; 2. a sintering chamber; 3. a cooling chamber; 4. a feed pipe; 5. a high temperature resistant lining; 6. a condenser; 7. a heat exchanger; 8. a first heat conductive pipe; 9. a first cold transfer pipe; 10. a second heat conductive pipe; 11. a second cold transfer pipe; 12. a heat conducting mechanism; 13. a housing; 14. a first separator; 15. a second separator; 16. a compression chamber; 17. a piston plate; 18. a travel bar; 19. a motor; 20. a strut; 21. an eccentric wheel; 22. a connecting rod; 23. a first pilot valve; 24. a second pilot valve; 25. a third pilot valve; 26. a fourth pilot valve; 27. a damper.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example one
Referring to fig. 1-3, a high temperature sintering apparatus for molybdenum plugs comprises a preheating chamber 1, a sintering chamber 2, and a cooling chamber 3; the preheating chamber 1, the sintering chamber 2 and the cooling chamber 3 are provided with a feeding pipe 4 in a penetrating manner, the inner wall of the sintering chamber 2 is provided with a high-temperature resistant lining 5, a condenser 6 is arranged in the cooling chamber 3, a heat exchanger 7 is arranged between the preheating chamber 1 and the cooling chamber 3, the cooling chamber 3 is connected with a first heat conduction pipe 8 and a first cold conduction pipe 9, the other end of the first heat conduction pipe 8 is connected with the heat exchanger 7, and the other end of the first cold conduction pipe 9 is connected with the heat exchanger 7; the preheating chamber 1 is connected with a second heat conduction pipe 10 and a second cold conduction pipe 11, the other end of the second heat conduction pipe 10 is connected with the heat exchanger 7, the other end of the second cold conduction pipe 11 is connected with the heat exchanger 7, and the first heat conduction pipe 8 is provided with a heat conduction mechanism 12.
The heat conducting mechanism 12 comprises a housing 13, a first partition plate 14 and a second partition plate 15 are arranged inside the housing 13, a compression cavity 16 is arranged between the first partition plate 14 and the second partition plate 15, a first air guide valve 23 and a second air guide valve 24 are arranged at the positions, close to the upper end and the lower end, of the first partition plate 14, and a third air guide valve 25 and a fourth air guide valve 26 are arranged at the positions, close to the upper end and the lower end, of the second partition plate 15.
A piston plate 17 is arranged in the compression cavity 16, a moving rod 18 is connected to one side of the piston plate 17, the moving rod 18 penetrates through the wall of the shell 13, and the moving rod 18 and the shell 13 form a matching sliding connection.
The top of the shell 13 is connected with a supporting rod 20, the supporting rod 20 is connected with a motor 19, the motor 19 is connected with an eccentric wheel 21 in a driving mode, the eccentric wheel 21 is connected with a connecting rod 22, and the other end of the connecting rod 22 is rotatably connected with the moving rod 18 through a pin shaft.
An air door 27 is arranged on one side of the first air guide valve 23 and one side of the second air guide valve 24 close to the compression cavity 16, and the air door 27 is rotatably connected with the first partition plate 14 through a hinge; and air doors 27 are arranged on one sides of the third air guide valves 25 and the fourth air guide valves 26 far away from the compression cavity 16, and the air doors 27 are rotatably connected with the second partition plate 15 through hinges. And both sides of the shell 13 are communicated with the first air duct. The heat exchanger 7 is a gas-gas heat exchanger 7; the bottom of the cooling chamber 3 is provided with a condenser 6.
Example two
On the basis of the first embodiment, the sintering chamber 2 is heated by a medium-frequency heater, the feeding pipe 4 is made of a high-temperature-resistant material, a transmission device is arranged inside the feeding pipe 4, the feeding pipe 4 firstly feeds the molybdenum plug into the preheating chamber 1 for preheating in the sintering process, then feeds the molybdenum plug into the sintering chamber 2 for high-temperature sintering, and finally feeds the molybdenum plug into the cooling chamber 3 for cooling, so that the rigidity and hardness of the molybdenum plug are improved.
In the process of heat exchange, heat exchange is rapidly realized through the heat conduction mechanism 12 arranged on the first heat conduction pipe 8, in the process of leading hot air in the cooling chamber 3 into the heat exchanger 7 through the heat conduction mechanism 12, the motor 19 is started, the motor 19 drives the eccentric wheel 21 and the connecting rod 22, the connecting rod 22 drives the moving rod 18 and the piston plate 17 to reciprocate, in the process of moving the piston plate 17, when the piston plate 17 moves upwards, negative pressure is formed at the lower part of the compression cavity 16, the air door 27 arranged on the second air conduction valve 24 is in an open state under the action of the negative pressure, and the hot air in the first heat conduction pipe 8 rapidly enters the compression cavity 16 from the first air conduction valve 23; the upper part of the opposite compression chamber 16 forms a pressure zone, and the damper 27 of the first air guide valve 23 is closed under the action of pressure; at this time, because the damper 27 of the fourth air guide valve 26 is arranged outside the compression chamber 16 and is closed under the action of negative pressure, and the damper 27 of the third air guide valve 25 is arranged outside the compression chamber 16 and is opened under the action of pressure, the hot air above the compression chamber 16 rapidly enters the first heat conduction pipe 8 close to one end of the heat exchanger 7 from the third air guide valve 25 along with the opening state of the third air guide valve 25 and under the action of pressure, and then enters the heat exchanger 7 for heat exchange. When the piston plate 17 moves downwards, the working distance is the same as that described above, the working state is opposite, the hot gas below the compression cavity 16 enters the first heat conduction pipe 8 close to one end of the heat exchanger 7 from the fourth heat conduction valve 26 rapidly along with the opening state of the fourth heat conduction valve 26 under the action of pressure, and then enters the heat exchanger 7 for heat exchange, and the hot gas in the first heat conduction pipe 8 rapidly and uninterruptedly enters the heat exchanger 7 through the up-and-down reciprocating motion of the piston plate 17, so that the heat exchange efficiency is improved, and the heat loss is reduced.
What obtain through above-mentioned technical scheme is a high temperature sintering device for molybdenum top, leads cold pipe and second heat pipe, second through setting up first heat pipe, first heat pipe and connects the heat exchanger, retrieves the unnecessary heat energy of cooling chamber to utilize with the preheating chamber, the time heat energy cyclic utilization has reached energy-conserving effect. The heat conduction mechanism can be used for rapidly leading hot gas in the cooling chamber into the heat exchanger, so that the cooling efficiency and the heat exchange efficiency are greatly improved, and meanwhile, the temperature of the preheating chamber is guaranteed. The motor indirectly drives the piston plate to reciprocate up and down, so that hot air in the first heat conduction pipe can rapidly and uninterruptedly enter the heat exchanger, the heat exchange efficiency is improved, and the heat loss is reduced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A high-temperature sintering device for a molybdenum plug comprises a preheating chamber (1), a sintering chamber (2) and a cooling chamber (3); the device is characterized in that a feeding pipe (4) penetrates through the preheating chamber (1), the sintering chamber (2) and the cooling chamber (3) together, a high-temperature-resistant lining (5) is arranged on the inner wall of the sintering chamber (2), a condenser (6) is arranged in the cooling chamber (3), a heat exchanger (7) is arranged between the preheating chamber (1) and the cooling chamber (3), the cooling chamber (3) is connected with a first heat conduction pipe (8) and a first cold conduction pipe (9), the other end of the first heat conduction pipe (8) is connected with the heat exchanger (7), and the other end of the first cold conduction pipe (9) is connected with the heat exchanger (7); the preheating chamber (1) is connected with a second heat conduction pipe (10) and a second cold conduction pipe (11), the other end of the second heat conduction pipe (10) is connected with the heat exchanger (7), the other end of the second cold conduction pipe (11) is connected with the heat exchanger (7), and the first heat conduction pipe (8) is provided with a heat conduction mechanism (12).
2. The high-temperature sintering device for the molybdenum plug as recited in claim 1, wherein the heat conducting mechanism (12) comprises a housing (13), a first partition plate (14) and a second partition plate (15) are arranged inside the housing (13), a compression chamber (16) is arranged between the first partition plate (14) and the second partition plate (15), a first air guide valve (23) and a second air guide valve (24) are arranged at the positions, close to the upper end and the lower end, of the first partition plate (14), and a third air guide valve (25) and a fourth air guide valve (26) are arranged at the positions, close to the upper end and the lower end, of the second partition plate (15).
3. The high-temperature sintering device for the molybdenum plug as claimed in claim 2, wherein a piston plate (17) is arranged in the compression chamber (16), a moving rod (18) is connected to one side of the piston plate (17), the moving rod (18) penetrates through the wall of the shell (13), and the moving rod (18) and the shell (13) form a matching sliding connection.
4. The high-temperature sintering device for the molybdenum plug as claimed in claim 3, wherein a supporting rod (20) is connected to the top of the shell (13), a motor (19) is connected to the supporting rod (20), the motor (19) is in driving connection with an eccentric wheel (21), the eccentric wheel (21) is connected with a connecting rod (22), and the other end of the connecting rod (22) is in pin rotating connection with the moving rod (18).
5. The high-temperature sintering device for the molybdenum plug as recited in claim 2, wherein a damper (27) is arranged on one side of the first guide valve (23) and one side of the second guide valve (24) close to the compression chamber (16), and the damper (27) is rotatably connected with the first partition plate (14) through a hinge; and an air door (27) is arranged on one side, far away from the compression cavity (16), of the third air guide valve (25) and the fourth air guide valve (26), and the air door (27) is rotatably connected with the second partition plate (15) through a hinge.
6. The high-temperature sintering device for the molybdenum plug as claimed in claim 2, wherein both sides of the housing (13) are communicated with the first gas-guide tube.
7. The high-temperature sintering device for molybdenum plugs as claimed in claim 1, wherein the heat exchanger (7) is a gas-gas heat exchanger (7); and a condenser (6) is arranged at the bottom of the cooling chamber (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122335843.5U CN215893208U (en) | 2021-09-26 | 2021-09-26 | High-temperature sintering device for molybdenum plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122335843.5U CN215893208U (en) | 2021-09-26 | 2021-09-26 | High-temperature sintering device for molybdenum plug |
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| Publication Number | Publication Date |
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| CN215893208U true CN215893208U (en) | 2022-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122335843.5U Active CN215893208U (en) | 2021-09-26 | 2021-09-26 | High-temperature sintering device for molybdenum plug |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117760217A (en) * | 2024-02-21 | 2024-03-26 | 湖南恒升热工机械设备有限公司 | sintering furnace with exhaust structure |
-
2021
- 2021-09-26 CN CN202122335843.5U patent/CN215893208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117760217A (en) * | 2024-02-21 | 2024-03-26 | 湖南恒升热工机械设备有限公司 | sintering furnace with exhaust structure |
| CN117760217B (en) * | 2024-02-21 | 2024-04-23 | 湖南恒升热工机械设备有限公司 | Sintering furnace with exhaust structure |
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