High-temperature evaporator with novel crucible

Abstract

The high-temperature evaporator comprises a shell, the crucible and a transferred arc gun, the crucible comprises a pot body, a butt-joint pot ring and a pot cover, an air inlet cavity and an air outlet cavity are arranged on the outer side of the butt-joint pot ring, the air inlet cavity is connected with a current-carrying gas input pipe, the air outlet cavity is connected with an exhaust pipe, the shell comprises an upper shell body and a lower shell body, and the upper shell body and the lower shell body are arranged on the upper shell body. The pot cover is connected with a feeding pipe and an air outlet pipe. According to the high-temperature evaporator with the novel crucible, the crucible is of a three-section structure, so that a current-carrying gas channel is convenient to clean, and the whole crucible is convenient to maintain. The blowing direction of the current-carrying gas can be changed in real time, and materials adhered to the wall of the crucible can be blown by adjusting the air pressure and direction of the current-carrying gas, so that all the materials in the crucible can be in contact with the positive electrode conductive rod to be positively charged, thereby reducing material residues in the crucible after production is completed, and improving the evaporation efficiency. Meanwhile, the crucible is good in sealing performance, especially the heat preservation performance of the crucible body is good, energy loss is reduced, and the energy utilization rate is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-temperature evaporators, and in particular relates to a high-temperature evaporator with a novel crucible. Background Art

[0002] The high-temperature evaporator uses high temperature to vaporize the metal material, and the vaporized material is cooled to form a metal powder product of uniform size. The high-temperature evaporator generally includes a furnace body, a crucible, a transfer arc gun, etc. The crucible includes a pot body and a pot cover. In the existing high-temperature evaporator, the internal temperature field of the crucible is prone to change after long-term use, resulting in the need to frequently adjust the angle and power of the transfer arc gun in order to heat and vaporize the remaining metal material as much as possible. At the same time, the existing high-temperature evaporator is generally only used to produce one type of metal powder. Once the product is changed, the entire crucible needs to be replaced, resulting in frequent disassembly and installation of the crucible, which is easy to damage the crucible. Utility Model Content

[0003] In order to solve the above technical problems, the technical scheme adopted by the utility model is: a high-temperature evaporator with a new crucible, comprising a shell, a crucible, and a transfer arc gun, the crucible comprising a pot body, a docking pot ring and a pot cover, the lower end of the docking pot ring is placed on the pot body, the pot cover is covered on the upper end of the docking pot ring, the lower end of the pot body is connected with a conductive tube, a positive conductive rod is arranged in the conductive tube, the upper end of the positive conductive rod extends into the pot body, and the lower end of the positive conductive rod is connected with a conductive base, the transfer arc gun is located above the pot cover, and the lower end of the transfer arc gun extends into the pot cover, an air inlet cavity and an air outlet cavity are arranged on the outer side of the docking pot ring, the air inlet cavity is connected to the inside of the crucible through a plurality of air inlet holes, the air outlet cavity is connected to the inside of the crucible through a plurality of air outlet holes, the air inlet cavity is connected to a carrier gas input pipe, and the air outlet cavity is connected to an exhaust pipe, the shell comprises an upper shell and a lower shell, the pot cover is located in the upper shell, the pot body is located in the lower shell, and the pot cover is connected with a feeding pipe and an air outlet pipe.

[0004] As a preferred embodiment of the above technical solution, an upper rotating ring and a lower rotating ring are provided on the outer side of the docking pot ring, and the upper rotating ring and the lower rotating ring are respectively rotatably installed on the docking pot ring, and the air inlet cavity is located inside the upper rotating ring, and the upper rotating ring is provided with a plurality of air inlet docking interfaces connected to the inside of the air inlet cavity, and the air inlet docking interfaces correspond to the air inlet holes one by one, and the lower rotating ring is provided with a plurality of air outlet docking interfaces connected to the inside of the air outlet cavity, and the air outlet docking interfaces correspond to the air outlet holes one by one, and the upper rotating ring and the lower rotating ring are respectively fixedly connected with rocker rods, and the lower shell body is provided with a movable adjusting port for the rocker rod to extend out.

[0005] As a preferred embodiment of the above technical solution, the air inlet hole is gradually inclined from the outside to the inside and faces the inside of the pot body.

[0006] As a preferred embodiment of the above technical solution, a heat conduction pipe is wound around the pot body, and the heat conduction pipe is filled with heat conduction oil or water. Both ends of the heat conduction pipe are connected to a cooling box, and the heat conduction oil or water is circulated through a pump.

[0007] As a preferred embodiment of the above technical solution, the docking pot ring includes an upper pot ring and a lower pot ring, and several adjustment pot rings or no adjustment pot ring are provided between the upper pot ring and the lower pot ring. The upper rotating ring is rotatably mounted on the upper pot ring, and the air inlet is located on the upper rotating ring. The lower rotating ring is rotatably mounted on the lower pot ring, and the air outlet is located on the lower rotating ring.

[0008] As a preferred embodiment of the above technical solution, the lower surface of the upper pot ring is provided with a plurality of positioning holes, the upper surface of the lower pot ring is fixed with a plurality of positioning columns, the upper surface of the adjusting pot ring is provided with a plurality of positioning columns, and the lower surface of the adjusting pot ring is provided with a plurality of positioning holes.

[0009] As a preferred embodiment of the above technical solution, the air inlet hole is an arc-shaped long hole.

[0010] As a preferred embodiment of the above technical solution, the upper shell and the lower shell are respectively filled with thermal insulation materials.

[0011] The beneficial effects of the utility model are as follows: the high-temperature evaporator with a new crucible of the utility model adopts a three-stage structure for the crucible, which is convenient for cleaning the carrier gas channel and for the maintenance of the entire crucible. The blowing direction of the carrier gas can be changed in real time, and the material adhering to the crucible wall can be blown by adjusting the pressure and direction of the carrier gas, so that the material in the crucible can contact the positive electrode conductive rod and be positively charged, thereby reducing the material residue in the crucible after the production is completed and improving the evaporation efficiency. At the same time, the crucible has good sealing performance, especially the pot body has good thermal insulation performance, which reduces energy loss and improves energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of a crucible;

[0014] Figure 3 It is a structural diagram of the docking pot ring. DETAILED DESCRIPTION

[0015] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] like Figure 1-3 As shown, a high temperature evaporator with a novel crucible includes a shell, a crucible, and a transfer arc gun 1. The crucible includes a pot body 2, a docking pot ring and a pot cover 3. The lower end of the docking pot ring is placed on the pot body 2, and the pot cover 3 covers the upper end of the docking pot ring. The lower end of the pot body 2 is connected to a conductive tube 4, and a positive conductive rod 5 is arranged in the conductive tube 4. The upper end of the positive conductive rod 5 extends into the pot body 2, and the lower end of the positive conductive rod 5 is connected to a conductive base 6. The transfer arc gun 1 is located above the pot cover 3. The lower end extends into the interior of the pot cover 3, and the outer side of the docking pot ring is provided with an air inlet chamber 7 and an air outlet chamber 8. The air inlet chamber 7 is connected to the interior of the crucible through a plurality of air inlet holes 9, and the air outlet chamber 8 is connected to the interior of the crucible through a plurality of air outlet holes 10. The air inlet chamber 7 is connected to a carrier gas input pipe, and the air outlet chamber 8 is connected to an exhaust pipe. The shell includes an upper shell 11 and a lower shell 12. The pot cover 3 is located in the upper shell 11, and the pot body 2 and the docking pot ring are both located in the lower shell 12. The pot cover 3 is connected to a feeding pipe 13 and an air outlet pipe 14. The carrier gas input pipe inputs nitrogen and other carrier gases. Before heating, the air in the crucible is discharged from the exhaust pipe by filling the carrier gas into the interior of the crucible. During the heating process, the carrier gas entrains the metal gas and flows into the collector from the air outlet pipe 14 for cooling. Materials can be added to the crucible from the feeding pipe 13. The transfer arc gun 1 is connected to the negative pole of the power source and is negatively charged, and the metal material wraps the positive conductive rod 5, and the positive conductive rod 5 is positively charged, so that the metal material is positively charged. The transfer arc gun 1 emits an arc to heat the metal material, so that the metal material is vaporized into a gaseous state.

[0019] Further, the outer side of the docking pot ring is sleeved with an upper rotating ring 15 and a lower rotating ring 16, which are rotatably mounted on the docking pot ring, respectively. The air inlet cavity 7 is located inside the upper rotating ring 15, and the upper rotating ring 15 is provided with a plurality of air inlet docking ports communicating with the inside of the air inlet cavity 7, and the air inlet docking ports correspond to the air inlet holes 9 one by one. The lower rotating ring 16 is provided with a plurality of air outlet docking ports communicating with the inside of the air outlet cavity 8, and the air outlet docking ports correspond to the air outlet holes 10 one by one. The upper rotating ring 15 and the lower rotating ring 16 are respectively fixedly connected with a swing rod 17, and the lower housing 12 is provided with a movable adjustment port 18 for the swing rod 17 to extend. By rotating the swing rod 17 on the upper rotating ring 15, the upper rotating ring 15 is axially rotated by a certain angle, so that the air inlet docking ports and the corresponding air inlet holes 9 can form different states such as connection, staggering, and flux adjustment.

[0020] Furthermore, the air inlet 9 is gradually tilted from outside to inside and faces the inside of the pot body 2. The air inlet 9 is tilted downward with a certain angle, so that the carrier gas can be blown into the inside of the pot body 2.

[0021] Furthermore, a heat pipe 19 is wound around the pot body 2, and water is filled in the heat pipe 19. Both ends of the heat pipe 19 are connected to a cooling box, and the water is circulated by a pump. By controlling the flow rate of the water in the heat pipe 19, the temperature in the pot body 2 is controlled, so that the temperature in the crucible is stable.

[0022] Further, the docking pot ring includes an upper pot ring 20 and a lower pot ring 21, and a plurality of adjustment pot rings are provided between the upper pot ring 20 and the lower pot ring 21, or no adjustment pot ring is provided, the upper rotating ring 15 is rotatably mounted on the upper pot ring 20, the air inlet 9 is located on the upper rotating ring 15, the lower rotating ring 16 is rotatably mounted on the lower pot ring 21, and the air outlet 10 is located on the lower rotating ring 16. The number of adjustment pot rings can be added or reduced as needed, or the adjustment pot rings can be completely omitted. Increasing the number of adjustment pot rings can increase the internal capacity of the crucible and adjust the height of the transfer arc gun 1.

[0023] Furthermore, the air inlet hole 9 is an arc-shaped long hole. In this way, when the air inlet hole 9 and the air inlet interface are kept in communication, the upper rotating ring 15 can be rotated to adjust the relative position of the air inlet interface, thereby adjusting the angle at which the carrier gas enters the crucible. In combination with increasing the pressure of the carrier gas, the material adhering to the inner wall of the pot body 2 can be blown off.

[0024] Furthermore, the lower surface of the upper pot ring 20 is provided with a plurality of positioning holes, the upper surface of the lower pot ring 21 is fixedly provided with a plurality of positioning posts, the upper surface of the adjusting pot ring is provided with a plurality of positioning posts, and the lower surface of the adjusting pot ring is provided with a plurality of positioning holes.

[0025] Furthermore, the upper shell 11 and the lower shell 12 are respectively filled with heat-insulating materials, which are commonly used felt materials or ceramic materials.

[0026] It is worth mentioning that the technical features such as the transfer arc gun and pump involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional methods in the field, and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0027] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the utility model on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A high temperature evaporator with a novel crucible, comprising a shell, a crucible, and a transfer arc gun, characterized in that: The crucible comprises a pot body, a docking pot ring and a pot cover, the lower end of the docking pot ring is placed on the pot body, the pot cover covers the upper end of the docking pot ring, the lower end of the pot body is connected with a conductive tube, a positive conductive rod is arranged in the conductive tube, the upper end of the positive conductive rod extends into the pot body, the lower end of the positive conductive rod is connected with a conductive base, the transfer arc gun is located above the pot cover, the lower end of the transfer arc gun extends into the pot cover, an air inlet cavity and an air outlet cavity are arranged on the outer side of the docking pot ring, the air inlet cavity is connected to the inside of the crucible through a plurality of air inlet holes, the air outlet cavity is connected to the inside of the crucible through a plurality of air outlet holes, the air inlet cavity is connected to a carrier gas input pipe, the air outlet cavity is connected to an exhaust pipe, the shell comprises an upper shell and a lower shell, the pot cover is located in the upper shell, the pot body is located in the lower shell, and the pot cover is connected with a feeding pipe and an air outlet pipe.

2. The high temperature evaporator with a novel crucible according to claim 1, characterized in that: An upper rotating ring and a lower rotating ring are sleeved on the outer side of the docking pot ring, and the upper rotating ring and the lower rotating ring are respectively rotatably installed on the docking pot ring, the air inlet cavity is located inside the upper rotating ring, and the upper rotating ring is provided with a plurality of air inlet docking interfaces connected to the inside of the air inlet cavity, and the air inlet docking interfaces correspond to the air inlet holes one by one, and the lower rotating ring is provided with a plurality of air outlet docking interfaces connected to the inside of the air outlet cavity, and the air outlet docking interfaces correspond to the air outlet holes one by one, the upper rotating ring and the lower rotating ring are respectively fixedly connected with swing rods, and the lower shell body is provided with a movable adjusting port for the swing rod to extend out.

3. The high temperature evaporator with a novel crucible according to claim 2, characterized in that: The air inlet hole is gradually inclined from the outside to the inside and faces the inside of the pot body.

4. The high temperature evaporator with a novel crucible according to claim 1, characterized in that: A heat conducting pipe is wound around the pot body, and heat conducting oil or water is filled in the heat conducting pipe. Both ends of the heat conducting pipe are connected to a cooling box, and the heat conducting oil or water is circulated through a pump.

5. The high temperature evaporator with a novel crucible according to claim 2, characterized in that: The docking pot ring includes an upper pot ring and a lower pot ring. Several adjustment pot rings or no adjustment pot ring are provided between the upper pot ring and the lower pot ring. The upper rotating ring is rotatably mounted on the upper pot ring, and the air inlet is located on the upper rotating ring. The lower rotating ring is rotatably mounted on the lower pot ring, and the air outlet is located on the lower rotating ring.

6. The high temperature evaporator with a novel crucible according to claim 5, characterized in that: The lower surface of the upper pot ring is provided with a plurality of positioning holes, the upper surface of the lower pot ring is fixedly provided with a plurality of positioning posts, the upper surface of the adjusting pot ring is provided with a plurality of positioning posts, and the lower surface of the adjusting pot ring is provided with a plurality of positioning holes.

7. The high temperature evaporator with a novel crucible according to claim 5, characterized in that: The air inlet hole is an arc-shaped long hole.

8. The high temperature evaporator with a novel crucible according to claim 1, characterized in that: The upper shell and the lower shell are filled with heat-insulating materials respectively.

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