Smelting furnace crucible mounting device with sealing effect

Abstract

The utility model relates to the technical field of smelting furnace crucible installation, in particular to a smelting furnace crucible installation device with a sealing effect, which comprises a furnace body and a clamping barrel, an annular clamping groove is arranged at the top end of the clamping barrel, a crucible barrel body is detachably inserted in the clamping barrel, and a crucible top sealing plate is connected to the top end of the crucible barrel body. The bottom face of the crucible top sealing plate is connected with an annular clamping plate which can be detachably clamped with the annular clamping groove, side plates are connected to the symmetrical positions of the bottom side of the side wall of the periphery of the furnace body, a threaded rod is transversely arranged on the side plates in a threaded and penetrating mode, and the end, close to the clamping cylinder, of the threaded rod rotationally abuts against a sealing assembly which can slide in the direction close to or away from the clamping cylinder. The multiple sealing assemblies can jointly seal the annular face position, penetrating out of the clamping cylinder, of the crucible cylinder body. According to the utility model, the annular surface position where the crucible barrel body penetrates into the clamping barrel and the annular surface position where the crucible barrel body penetrates out of the clamping barrel are sealed, so that the sealing effect is achieved on the premise of facilitating the installation between the crucible barrel body and the furnace body, and the sealing vacuum effect in the furnace body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting furnace crucible installation, in particular to a smelting furnace crucible installation device with sealing effect. Background Art

[0002] Tantalum is a rare transition metal. Tantalum is hard and highly corrosion-resistant. It is widely used in the manufacture of high-strength alloy steel or superalloy or carbide reinforced tools. Tantalum's excellent corrosion resistance means that it can be used to manufacture chemical process equipment and medical equipment and implants. Electron beam melting refers to a vacuum melting method that converts the kinetic energy of a high-speed electron beam into thermal energy as a heat source for metal melting under high vacuum. Electron beam melting needs to be maintained in a high vacuum environment to work properly. For the production of tantalum oxide, tantalum plates or ingots are used as the initial products, and tantalum oxide or tantalum carbide is obtained after processing in an electron beam melting furnace to meet subsequent manufacturing needs. Crucibles are generally used in electron beam melting furnaces to melt tantalum plates or ingots. Crucibles are generally used in vacuum furnaces to complete the oxidation of tantalum plates or ingots.

[0003] During the process of melting and processing metal tantalum plates or tantalum ingots in the crucible, it is necessary to keep the electron beam melting furnace in a sealed vacuum state. Since the crucible is detachably installed in the furnace body, the gap between the crucible and the furnace body is the main factor affecting the vacuum sealing effect of the furnace body. The existing crucible installation device only facilitates the installation, disassembly and replacement of the crucible, but the connection gap between the two leads to a poor sealing vacuum effect of the furnace body, which in turn affects the melting and processing of the metal tantalum plates or tantalum ingots therein.

[0004] Therefore, it is necessary to invent a smelting furnace crucible installation device with sealing effect to solve the above problems. Summary of the invention

[0005] In order to address the deficiencies of the prior art, the purpose of the utility model is to provide a crucible installation device for a smelting furnace with a sealing effect, which solves the problem that the crucible installation device in the prior art only facilitates the installation, disassembly and replacement of the crucible, but the connection gap between the two leads to a poor sealing vacuum effect of the furnace body, thereby affecting the smelting processing of metal tantalum plates or tantalum ingots therein.

[0006] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0007] A crucible installation device for a smelting furnace with a sealing effect, comprising a furnace body with a hollow interior and a cartridge detachably inserted in the center of the bottom side of the furnace body, the top of the cartridge being provided with an annular groove, a crucible barrel being detachably inserted in the cartridge, the top of the crucible barrel being connected with a crucible top sealing plate, the bottom surface of the crucible top sealing plate being connected with an annular clamping plate detachably engageable with the annular groove, side plates being connected at symmetrical positions on the bottom side of the outer peripheral side wall of the furnace body, a screw being transversely threaded through the side plate, the end of the screw close to the cartridge being rotatably abutted against a sealing component that can slide toward or away from the cartridge, and a plurality of the sealing components can jointly seal the annular surface of the crucible barrel passing through the cartridge.

[0008] As a preferred solution of the utility model, the crucible cylinder extends downward out of the cartridge, and the sealing assembly includes a sealing bracket and a sealing pad arranged on the sealing bracket close to the cartridge side, and the sealing pad can be used to seal the annular position of the crucible cylinder passing through the cartridge.

[0009] As a preferred solution of the utility model, a threaded hole is opened in the side plate, the screw is threadedly inserted into the threaded hole, the side of the sealing bracket close to the side plate is connected to an insert sleeve, the side of the screw close to the clamping sleeve is connected to a rotating block, and the rotating block is rotatably inserted into the insert sleeve.

[0010] As a preferred solution of the utility model, a sliding hole is further provided in the side plate, a guide column is connected to the side of the sealing bracket close to the side plate, and the guide column is transversely slidably penetrated in the sliding hole.

[0011] As a preferred solution of the utility model, one end of the screw rod away from the cartridge is connected to a rotating bracket.

[0012] As a preferred solution of the utility model, a lower bayonet is opened in the center of the bottom side of the peripheral side wall of the furnace body, and the cartridge is detachably inserted into the lower bayonet. An upper bayonet is opened in the center of the top side of the peripheral side wall of the furnace body, and an external connecting pipe is connected to the outer peripheral side wall of the furnace body at the position of the upper bayonet.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] The cam is then retracted to allow the hopper to be moved inwardly and outwardly so that the hopper can ... BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the plan view structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the plan view of the structure of the utility model;

[0018] Figure 4 For this utility model Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle.

[0019] Description of reference numerals:

[0020] 1. Furnace body; 2. Lower clamping joint; 3. Clamping tube; 4. Annular clamping groove; 5. Crucible cylinder; 6. Crucible top sealing plate; 7. Annular clamping plate; 8. Upper clamping joint; 9. External connecting pipe; 10. Side plate; 11. Screw; 12. Rotary frame; 13. Rotating block; 14. Sealing support; 15. Sealing pad; 16. Insertion tube; 17. Guide column. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0022] The utility model provides Figure 1-4The device for installing a crucible in a melting furnace with a sealing effect is shown, comprising a furnace body 1 with a hollow interior and a cartridge 3 detachably plugged into the center of the bottom side of the furnace body 1, the top of the cartridge 3 is provided with an annular slot 4, a crucible barrel 5 detachably plugged into the cartridge 3, a crucible top sealing plate 6 connected to the top of the crucible barrel 5, an annular clamping plate 7 detachably plugged into the annular slot 4 connected to the bottom of the crucible top sealing plate 6, side plates 10 are connected to symmetrical positions on the bottom side of the outer peripheral side wall of the furnace body 1, and screws 11 are passed through the side plates 10 with transverse threads. One end of the screw 11 close to the cartridge 3 is rotatably abutted against a sealing component that can slide toward or away from the cartridge 3. Multiple sealing components can jointly seal the annular position of the crucible barrel 5 passing through the cartridge 3. The overall shape of the sealing component is a Z-shape, with one side abutting against the outer peripheral side wall of the cartridge 3, and the other side abutting against the outer peripheral side wall of the crucible barrel 5, while the turning side between the two sides abuts against the annular surface between the cartridge 3 and the crucible barrel 5, thereby sealing the annular position of the crucible barrel 5 passing through the cartridge 3 through the sealing component.

[0023] The crucible cylinder 5 extends downward out of the cartridge 3, and the sealing assembly includes a sealing bracket 14 and a sealing pad 15 arranged on the side of the sealing bracket 14 close to the cartridge 3. The sealing pad 15 can be used to seal the annular position of the crucible cylinder 5 passing through the cartridge 3. The sealing pad 15 can be made of flexible material, so that when the ends of the two sealing brackets 14 abut against each other, the two sealing pads 15 can firmly abut against the annular position of the crucible cylinder 5 passing through the cartridge 3, thereby ensuring the sealing effect at this position.

[0024] A threaded hole is provided in the side plate 10, and a screw rod 11 is threadedly inserted into the threaded hole. A side of the sealing bracket 14 close to the side plate 10 is connected to an insert sleeve 16, and a side of the screw rod 11 close to the cartridge 3 is connected to a rotating block 13, which is rotatably inserted into the insert sleeve 16.

[0025] A sliding hole is further provided in the side plate 10 , and a guide column 17 is connected to one side of the sealing bracket 14 close to the side plate 10 . The guide column 17 is slidably disposed in the sliding hole transversely.

[0026] The end of the screw 11 away from the cartridge 3 is connected to a rotating frame 12. The rotating frame 12 is manually rotated to drive the screw 11 to be threaded transversely in the threaded hole, thereby changing the length of the screw 11 between the side plate 10 and the cartridge 3, so that the two sealing components slide toward or away from the cartridge 3 until the ends of the two sealing components abut against each other, thereby sealing the annular position of the crucible cylinder 5 passing through the cartridge 3. During the process, the guide column 17 slides transversely along the sliding hole, thereby limiting the lateral movement of the sealing component.

[0027] A lower bayonet 2 is provided at the center of the bottom side of the side wall of the furnace body 1, and a cartridge 3 can be detachably inserted into the lower bayonet 2. An upper bayonet 8 is provided at the center of the top side of the side wall of the furnace body 1. An external connecting pipe 9 is connected to the position of the outer peripheral side wall of the furnace body 1 that fits the upper bayonet 8. The external connecting pipe 9 can be detachably connected to the electron beam melter. The sealing treatment at this location does not belong to the part of the crucible installation, so it is not further depicted in the figure.

[0028] In the utility model, the crucible barrel 5 is detachably inserted into the cartridge 3, thereby completing the installation and disassembly and replacement between the furnace body 1 and the crucible barrel 5. In the process of inserting the crucible barrel 5 from the furnace body 1 into the cartridge 3, the annular clamping plate 7 on the bottom surface of the crucible top sealing plate 6 is clamped into the annular clamping groove 4 at the top end of the cartridge 3, which can limit the installation position of the crucible barrel 5 in the cartridge 3 on the one hand, and seal the annular surface position of the crucible barrel 5 penetrating into the cartridge 3 on the other hand. When the crucible barrel 5 completely enters the cartridge 3, the crucible barrel 5 passes downward out of the cartridge 3, At this time, by rotating the screws 11 in the two side plates 10, the two sealing components gradually slide toward the cartridge 3 until the ends of the two sealing components abut against each other, thereby sealing the annular position of the crucible barrel 5 passing through the cartridge 3 through the two sealing components. In the utility model, by sealing the annular position of the crucible barrel 5 passing through the cartridge 3 and the annular position of the crucible barrel 5 passing through the cartridge 3, the sealing effect is achieved while facilitating the installation between the crucible barrel 5 and the furnace body 1, thereby ensuring the sealed vacuum effect in the furnace body 1.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A melting furnace crucible installation device with sealing effect, characterized in that: The invention comprises a furnace body (1) with a hollow interior and a cartridge (3) detachably inserted in the center of the bottom side of the furnace body (1), the top of the cartridge (3) being provided with an annular slot (4), a crucible barrel (5) detachably inserted in the cartridge (3), the top of the crucible barrel (5) being connected with a crucible top sealing plate (6), the bottom surface of the crucible top sealing plate (6) being connected with an annular clamping plate (7) detachably engaged with the annular slot (4), side plates (10) being connected at symmetrical positions on the bottom side of the outer peripheral side wall of the furnace body (1), a screw rod (11) being transversely threadedly penetrated by the side plate (10), one end of the screw rod (11) close to the cartridge (3) being rotatably abutted against a sealing component that can slide in a direction close to or away from the cartridge (3), and a plurality of the sealing components can jointly seal the annular surface of the crucible barrel (5) passing through the cartridge (3).

2. The smelting furnace crucible installation device with sealing effect according to claim 1, characterized in that: The crucible barrel (5) extends downwardly out of the cartridge (3), and the sealing assembly comprises a sealing bracket (14) and a sealing pad (15) arranged on a side of the sealing bracket (14) close to the cartridge (3). The sealing pad (15) can be used to seal the annular position of the crucible barrel (5) passing through the cartridge (3).

3. The smelting furnace crucible installation device with sealing effect according to claim 2, characterized in that: A threaded hole is provided in the side plate (10), and the screw rod (11) is threadedly inserted into the threaded hole. The side of the sealing bracket (14) close to the side plate (10) is connected to an insert cylinder (16), and the side of the screw rod (11) close to the clamping cylinder (3) is connected to a rotating block (13), and the rotating block (13) is rotatably inserted into the insert cylinder (16).

4. The smelting furnace crucible installation device with sealing effect according to claim 3 is characterized in that: A sliding hole is also provided in the side plate (10), and a guide column (17) is connected to a side of the sealing bracket (14) close to the side plate (10), and the guide column (17) is slidably disposed transversely in the sliding hole.

5. The smelting furnace crucible installation device with sealing effect according to claim 1, characterized in that: One end of the screw rod (11) away from the cartridge (3) is connected to a rotating frame (12).

6. The smelting furnace crucible installation device with sealing effect according to claim 1, characterized in that: A lower snap-in opening (2) is provided at the center of the bottom side of the peripheral side wall of the furnace body (1), and the clamping cylinder (3) is detachably inserted into the lower snap-in opening (2). An upper snap-in opening (8) is provided at the center of the top side of the peripheral side wall of the furnace body (1), and an external connecting pipe (9) is connected to the position of the peripheral side wall of the furnace body (1) that fits the upper snap-in opening (8).

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