Safe-to-use crucible for vacuum melting furnace

Abstract

The utility model relates to the technical field of crucibles, and discloses a safe-to-use crucible for a vacuum melting furnace, which comprises a crucible body, the crucible body is divided into an inner crucible and an outer crucible, the surface of the outer crucible is provided with a first clamping component, the upper end of the inner crucible is provided with a discharge port, the upper end of the inner crucible is connected with a cover plate, and the cover plate is provided with a second clamping component. When metal smelting needs to be carried out, a worker seals the feeding port through a baffle, the inner crucible and the outer crucible are combined and then placed in a vacuum smelting furnace to be smelted, the cover plate prevents liquid metal from splashing and damaging the smelting furnace, and after smelting is completed, the inner crucible and the outer crucible are clamped by the second clamping assembly. The fork is forked in the first annular groove of the first supporting assembly, the crucible body is taken out, the inner crucible is protected by the outer crucible in the smelting process, and the situation that the inner crucible is broken due to long-time high-temperature smelting, liquid metal flows out, an instrument is damaged, and safety accidents are caused is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of crucibles, in particular to a crucible used in a vacuum melting furnace which is safe to use. Background Art

[0002] In the process of metal smelting and material preparation, vacuum melting furnace is a commonly used equipment. Crucible is an important part of vacuum melting furnace, and its safety and stability directly affect the effect of melting process and the safety of operators. Traditional crucible has deficiencies in high temperature resistance, corrosion resistance and safety, so a new type of vacuum melting furnace crucible with safe use is needed to solve these problems.

[0003] The patent with the current publication number CN210833027U discloses a high-purity quartz crucible for a vacuum melting furnace, which includes a quartz crucible body and a feed nozzle on the upper part thereof, and the two are cast into one piece; the wall thickness of the quartz crucible body is 15mm, the bottom thickness is 20mm, the inner diameter is 70mm, and the height is 190mm. The distance from the center of the crucible body to the end of the feed nozzle is 100-150mm to meet the casting requirements of the long distance between the crucible and the mold; the distance between the end of the feed nozzle and the upper edge of the crucible body is 10mm, and the distance between the starting end of the feed nozzle and the upper edge of the crucible body is 15.72mm; the outer width of the end of the feed nozzle is 20mm, and the inner width is 10mm. The cone angle formed between the two inner sides of the feed nozzle is 6°, and the transition fillet radius between the two inner sides and the outer wall of the quartz crucible body is 10mm. The above-mentioned technology has a simple structure, low manufacturing and maintenance costs, safe, convenient and efficient operation, can perfectly realize the smelting and casting process in the vacuum melting furnace, and can be promoted in the entire gold smelting industry.

[0004] However, the above technology still has the following problems:

[0005] During the process of melting the metal in a vacuum melting furnace, bubbles will be generated in the liquid metal in the crucible body, causing the liquid metal to splash everywhere, damaging the vacuum melting furnace and causing safety accidents. At the same time, the crucible may also break after working at high temperature for a long time, and the outflow of liquid metal will also damage the vacuum melting furnace, which will not only cause waste of materials, but also damage the vacuum melting furnace and cause safety accidents. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a crucible for a vacuum melting furnace which is safe to use. The crucible body is divided into two and a cover plate is provided on the inner crucible to avoid splashing of materials during the melting process and to prevent the inner crucible from rupturing and causing liquid metal to flow out, thereby damaging the vacuum melting furnace and causing harm.

[0007] The utility model provides the following technical solution: a crucible for a vacuum melting furnace with safe use, comprising a crucible body, wherein the crucible body is divided into an inner crucible and an outer crucible, a first clamping assembly is arranged on the surface of the outer crucible, a discharge port is arranged on the upper end of the inner crucible, a cover plate is connected to the upper end of the inner crucible, and a second clamping assembly is arranged on the outer surface of the inner crucible.

[0008] Furthermore, a fixing plate is fixedly connected to the surface of the inner crucible, a first sliding groove corresponding to the fixing plate is opened on the inner wall of the outer crucible, and the outer crucible is sleeved on the inner crucible.

[0009] Furthermore, a feed port is provided on the cover plate, a second slide groove is provided on the side wall of the feed port, a baffle is slidably connected in the second slide groove, and a shift rod is fixedly connected to the baffle.

[0010] Furthermore, the first clamping assembly includes a first annular fixing block fixed on the outer surface of the inner crucible, and a first annular groove is formed on the outer surface of the first annular fixing block.

[0011] Furthermore, the second clamping assembly includes a second annular fixing block fixed on the outer surface of the outer crucible, and a second annular groove is formed on the outer surface of the second annular fixing block.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] This safe crucible for a vacuum melting furnace can, during the metal melting process, have a cover plate that can seal the upper end of the inner crucible to prevent bubbles in the inner crucible from causing liquid metal to splash everywhere, thereby damaging the vacuum melting furnace and causing safety accidents. At the same time, the crucible may break in a high-temperature environment for a long time, and the outer crucible machine can protect the inner crucible to prevent it from breaking and causing liquid metal to flow into the vacuum melting furnace, thereby avoiding damage and safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the inner crucible of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the outer crucible of the utility model;

[0017] Figure 4 It is a cross-sectional three-dimensional structural schematic diagram of the utility model;

[0018] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the cover plate of the utility model.

[0019] In the figure: 1. crucible body; 2. inner crucible; 3. outer crucible; 4. first clamping assembly; 401. first annular fixing block; 402. first annular groove; 5. discharge port; 6. cover plate; 601. feed port; 602. second slide groove; 603. baffle; 604. lever; 7. second clamping assembly; 701. second annular fixing block; 702. second annular groove; 8. fixing plate; 9. first slide groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figures 1 to 5 A crucible for a vacuum melting furnace with safe use comprises a crucible body 1, wherein the crucible body 1 is divided into an inner crucible 2 and an outer crucible 3, a first clamping assembly 4 is arranged on the surface of the outer crucible 3, a discharge port 5 is arranged on the upper end of the inner crucible 2, a cover plate 6 is connected to the upper end of the inner crucible 2, and a second clamping assembly 7 is arranged on the upper end of the outer surface of the inner crucible 2.

[0022] The crucible for vacuum melting furnace used in the utility model is safe to use and has a similar structure to the existing high-purity quartz crucible for vacuum melting furnace, such as the patent with publication number CN210833027U which discloses a high-purity quartz crucible for vacuum melting furnace. The main improvement of the utility model is that the crucible body 1 is divided into an inner crucible 2 and an outer crucible 3, and the top of the inner crucible 2 is covered with a cover plate 6 to prevent the liquid metal from splashing during the melting process, thereby damaging the container and causing a safety accident. Figures 1 to 5 As shown, when the crucible for a vacuum melting furnace that is safe to use in the utility model is used, the staff first opens the toggle lever 604 and slides the baffle 603 along the second slide groove 602 to open the feed port 601 and fill the material. After filling, the reverse operation is performed to close the feed port 601, and then the inner crucible 2 is moved downward along the first slide groove 9 to be combined with the outer crucible 3, and the crucible is forked into the second groove of the second clamping component 7, and is placed in a vacuum melting furnace for melting. After the melting is completed, the fork is forked into the first groove of the first clamping component 4 to pour the liquid metal to complete the melting.

[0023] like Figure 2 or Figure 3 As shown, a fixing plate 8 is fixedly connected to the surface of the inner crucible 2 , a first slide groove 9 corresponding to the fixing plate 8 is opened on the inner wall of the outer crucible 3 , and the outer crucible 3 is sleeved on the inner crucible 2 .

[0024] Specifically, through the action between the fixed plate 8 and the first chute 9, it is ensured that the inner crucible 2 can maintain a relatively static state with the outer crucible 3, and will not rotate at will when pouring the liquid metal, so that the liquid metal can flow out smoothly from the discharge port 5. At the same time, the outer crucible 3 protects the inner crucible 2. During a long period of smelting, the inner crucible 2 is damaged, causing the liquid metal to flow out, which not only damages the smelting furnace, but also causes waste of materials.

[0025] like Figures 2 to 5 As shown, the cover plate 6 is provided with a feed port 601 , a side wall of the feed port 601 is provided with a second slide groove 602 , a baffle plate 603 is slidably connected in the second slide groove 602 , and a lever 604 is fixedly connected to the baffle plate 603 .

[0026] Specifically, before smelting, the lever 604 is pushed to slide the baffle 603 into the second chute 602, so that the feed port 601 is opened for filling. After the filling is completed, the operation is reversed to push the baffle 603 back to its original position, so that the feed port 601 is closed, and the cover plate 6 completely seals the upper end of the inner crucible 2 to prevent liquid metal from splashing during smelting, thereby damaging the vacuum melting furnace and causing safety accidents.

[0027] like Figure 3 As shown, the first clamping assembly 4 includes a first annular fixing block 401 fixed on the outer surface of the outer crucible 3 , and a first annular groove 402 is formed on the outer surface of the first annular fixing block 401 .

[0028] Specifically, after smelting is completed, the crucible body 1 can be removed by inserting a fork into the first annular groove 402 of the first clamping assembly 4 to avoid direct contact with the crucible body 1 and thus scalding the staff.

[0029] like Figure 2 As shown, the second clamping assembly 7 comprises a second annular fixing block 701 fixed on the outer surface of the inner crucible 2 , and a second annular groove 702 is formed on the outer surface of the second annular fixing block 701 .

[0030] Specifically, after taking out the crucible body 1 , use a fork to fork into the second annular groove 702 of the second clamping assembly 7 , lift it upwards to remove the inner crucible 2 and pour out the liquid metal inside the inner crucible 2 .

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crucible for a vacuum melting furnace which is safe to use, comprising a crucible body (1), It is characterized in that The crucible body (1) is divided into an inner crucible (2) and an outer crucible (3); a first clamping assembly (4) is arranged on the surface of the outer crucible (3); a discharge port (5) is arranged at the upper end of the inner crucible (2); a cover plate (6) is connected to the upper end of the inner crucible (2); and a second clamping assembly (7) is arranged on the outer surface of the inner crucible (2).

2. A crucible for a vacuum melting furnace that is safe to use according to claim 1, Features: A fixing plate (8) is fixedly connected to the surface of the inner crucible (2), a first sliding groove (9) corresponding to the fixing plate (8) is provided on the inner wall of the outer crucible (3), and the outer crucible (3) is sleeved on the inner crucible (2).

3. A crucible for a vacuum melting furnace that is safe to use according to claim 1 or 2, Features: The cover plate (6) is provided with a feed opening (601), a side wall of the feed opening (601) is provided with a second slide groove (602), a baffle plate (603) is slidably connected in the second slide groove (602), and a lever (604) is fixedly connected to the baffle plate (603).

4. A crucible for a vacuum melting furnace that is safe to use according to claim 1 or 2, Features: The first clamping assembly (4) comprises a first annular fixing block (401) fixed on the outer surface of the outer crucible (3), and a first annular groove (402) is formed on the outer surface of the first annular fixing block (401).

5. A crucible for a vacuum melting furnace that is safe to use according to claim 3, Features: The first clamping assembly (4) comprises a first annular fixing block (401) fixed on the outer surface of the outer crucible (3), and a first annular groove (402) is formed on the outer surface of the first annular fixing block (401).

6. A crucible for a vacuum melting furnace having safety in use according to claim 1, 2 or 5, Features: The second clamping assembly (7) comprises a second annular fixing block (701) fixed on the outer surface of the inner crucible (2), and a second annular groove (702) is formed on the outer surface of the second annular fixing block (701).

7. A crucible for a vacuum melting furnace that is safe to use according to claim 3, Features: The second clamping assembly (7) comprises a second annular fixing block (701) fixed to the upper end of the outer surface of the inner crucible (2), and a second annular groove (702) is formed on the outer surface of the second annular fixing block (701).

8. A crucible for a vacuum melting furnace that is safe to use according to claim 4, Features: The second clamping assembly (7) comprises a second annular fixing block (701) fixed to the upper end of the outer surface of the inner crucible (2), and a second annular groove (702) is formed on the outer surface of the second annular fixing block (701).

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