Vacuum furnace cover with feeding mechanism

Abstract

The utility model relates to a vacuum furnace cover with a feeding mechanism, belongs to the field of metallurgical equipment, and is used for covering a vacuum furnace. According to the furnace cover of the vacuum furnace, the charging barrel can be shaken through the turnover mechanism, so that the charging barrel is turned over, then materials contained in the charging barrel are poured into the feeding bin, and the materials can slide into the vacuum furnace along the material pipe after the material valve is opened. According to the embodiment, different materials can be contained in the charging barrels, the materials are pre-contained in the charging barrels before the vacuum furnace is vacuumized, different materials are added in different stages of vacuum smelting of the vacuum furnace, a feeding bin does not need to be opened to add new materials, the use efficiency of equipment is improved, and meanwhile the situation that vacuum of the feeding bin is broken to affect vacuum smelting is prevented.

Description

Technical Field

[0001] This application belongs to the field of metallurgical equipment technology, and in particular relates to a vacuum furnace cover with a feeding mechanism. Background Technology

[0002] A vacuum induction melting furnace is a complete set of vacuum smelting equipment that uses electromagnetic induction to generate eddy currents in a metal conductor to heat the furnace charge under vacuum conditions, thereby melting the metal. It consists of a vacuum furnace body and a furnace lid.

[0003] Chinese invention patent document CN 109579530 B discloses a vacuum furnace cover. The feeding mechanism on the furnace cover includes an alloy feeding chamber, an upper feeding pipe, a transition funnel, and a lower feeding pipe. At that time, the alloy feeding chamber could only add alloy material once. If alloy material was to be added in multiple times during a smelting process, the alloy feeding chamber had to be opened. Since the vacuum was broken, the efficiency would decrease, and the smelting effect would inevitably be affected. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a vacuum furnace cover with a feeding mechanism that can add materials at different times during a single smelting process.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A vacuum furnace cover with a feeding mechanism includes:

[0007] A furnace cover body, the furnace cover body including an inner wall and an outer wall, a cooling chamber for cooling water to flow between the inner wall and the outer wall;

[0008] The feeding mechanism includes a feeding hopper with an open top and a hopper cover fitted on the feeding hopper for sealing. The bottom of the feeding hopper is connected to the vacuum furnace through a material pipe. A material valve is installed on the material pipe. Several material cylinders are provided inside the feeding hopper. The material cylinders are connected to a tilting mechanism. The feeding hopper is also connected to the furnace cover body through a connecting pipe. A valve is provided on the connecting pipe. The connecting pipe passes through the cooling chamber and the opening of the connecting pipe is located on the inner wall.

[0009] Preferably, in the vacuum furnace cover of this utility model with a feeding mechanism, there are four material cylinders arranged in a grid pattern.

[0010] Preferably, in the vacuum furnace cover of this utility model with a feeding mechanism, a pipe is also provided below the feeding valve, and the pipe is tilted to one side to align with the center of the vacuum furnace.

[0011] Preferably, in the vacuum furnace cover of this utility model with a feeding mechanism, a sleeve is provided on the side wall of the feeding chamber, the sleeve has a channel in the middle, and a cylinder cover is provided on the outside of the feeding chamber. The cylinder cover is connected to the sleeve by screws. The flipping mechanism includes a rotating shaft passing through the sleeve with the channel and the cylinder cover. One end of the rotating shaft extends into the feeding chamber and is connected to the material cylinder, and the other end extends out of the feeding chamber and is connected to a handle. A sealing ring and a bearing are provided between the rotating shaft and the sleeve.

[0012] Preferably, the vacuum furnace cover of the present invention with a feeding mechanism has a first water inlet and a second water inlet on its outer wall that communicate with the cooling chamber. One of the first water inlet and the second water inlet can inject cooling water into the cooling chamber, while the other allows cooling water to flow out.

[0013] Preferably, the vacuum furnace cover of this utility model, which has a feeding mechanism, is further provided with an argon gas connection pipe on the cover body.

[0014] Preferably, the vacuum furnace cover of this utility model with a feeding mechanism is further provided with a pressure gauge on the connecting pipe.

[0015] Preferably, in the vacuum furnace cover with a feeding mechanism of this utility model, the valve is a vacuum baffle valve, and the connecting pipe includes a vertical connecting pipe and a horizontal connecting pipe. The horizontal connecting pipe is connected to the valve and the feeding bin respectively. One end of the vertical connecting pipe is connected to the furnace cover body, and the other end is connected to the valve through a corrugated pipe.

[0016] The beneficial effects of this utility model are:

[0017] The vacuum furnace lid with a feeding mechanism of this application is mounted on the vacuum furnace. A tilting mechanism shakes the material cylinder, causing it to tilt and pour the material inside into the feeding hopper. After the feeding valve is opened, the material slides into the vacuum furnace along the feeding pipe. In this embodiment, multiple material cylinders can hold different materials. The materials are pre-loaded into the material cylinders before the vacuum furnace is evacuated. Different materials are added at different stages of vacuum smelting in the vacuum furnace without needing to open the feeding hopper to add new materials, thus improving equipment efficiency and preventing the vacuum in the feeding hopper from being broken, which would affect the vacuum smelting process. Attached Figure Description

[0018] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the vacuum furnace cover with a feeding mechanism according to an embodiment of this application;

[0020] Figure 2 This is a cross-sectional view of an embodiment of the present application with a feeding mechanism;

[0021] Figure 3 This is a schematic diagram of the feeding mechanism according to an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the feeding mechanism of this application embodiment after the bin cover has been removed;

[0023] Figure 5 This is a schematic diagram of the feeding bin and its interior according to an embodiment of this application;

[0024] Figure 6 This is a cross-sectional view of the feeding hopper according to an embodiment of this application;

[0025] The attached figures are labeled as follows:

[0026] 1 Furnace cover body;

[0027] 2. Feeding mechanism;

[0028] 3. Observation port;

[0029] 4. Sampling holes;

[0030] 5. Connecting columns;

[0031] 6. Vacuum connection port;

[0032] 11. Inner wall;

[0033] 12 outer wall;

[0034] 13. First water inlet;

[0035] 14. Second water inlet;

[0036] 15. Argon gas connection pipe;

[0037] 21. Feeding bin;

[0038] 22. Warehouse cover;

[0039] 23. Material pipe;

[0040] 24. Feed valve;

[0041] 25 Connecting pipe;

[0042] 26. Valves;

[0043] 27. Material cylinder;

[0044] 28. Tilting Mechanism

[0045] 29. Pipeline;

[0046] 252 Vertical connecting pipe;

[0047] 253 Horizontal connecting pipe;

[0048] 254 Corrugated Pipe;

[0049] 281 Sleeve;

[0050] 282 Sealing ring;

[0051] 283 bearing;

[0052] 284 Rotational axes;

[0053] 285 Cylinder Cap;

[0054] 286 Handle. Detailed Implementation

[0055] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0056] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0059] Example

[0060] This embodiment provides a vacuum furnace cover equipped with a feeding mechanism, such as... Figure 1 As shown, it includes:

[0061] The furnace cover body 1 includes an inner wall 11 and an outer wall 12, and a cooling chamber for cooling water to flow is formed between the inner wall 11 and the outer wall 12.

[0062] The feeding mechanism 2 includes a top-opening feeding hopper 21 (funnel-shaped) and a hopper cover 22 for sealing the feeding hopper 21. The bottom of the feeding hopper 21 is connected to the vacuum furnace through a material pipe 23. A material valve 24 is installed on the material pipe 23. Several material cylinders 27 are provided inside the feeding hopper 21. The material cylinders 27 are connected to a tilting mechanism 28. The feeding hopper 21 is also connected to the furnace cover body 1 through a connecting pipe 25. A valve 26 is provided on the connecting pipe 25. The connecting pipe 25 passes through the cooling chamber and the opening of the connecting pipe 25 is located on the inner wall 11.

[0063] In this embodiment, the vacuum furnace lid with a feeding mechanism is mounted on the vacuum furnace. The tilting mechanism 28 shakes the material cylinder 27, causing it to tilt and pour the material inside into the feeding hopper 21. After the material valve 24 is opened, the material slides into the vacuum furnace along the material pipe 23. In this embodiment, multiple material cylinders 27 can hold different materials. The material is pre-loaded into the material cylinders 27 before the vacuum furnace is evacuated. Different materials are added at different stages of vacuum smelting without opening the feeding hopper 21 to add new material, improving equipment efficiency and preventing disruption of the vacuum in the feeding hopper 21 from affecting the vacuum smelting process.

[0064] When valve 26 is open, connecting pipe 25 ensures that the vacuum level of the feeding hopper 21 is consistent with that of the vacuum furnace. When the vacuum of the feeding hopper 21 needs to be broken separately (the feeding hopper 21 is isolated from the vacuum furnace), both valve 24 and valve 26 need to remain closed.

[0065] Furthermore, such as Figure 4 and Figure 5 As shown, there are four material cylinders 27 arranged in a grid pattern.

[0066] Furthermore, a pipe 29 is provided below the material valve 24, and the pipe 29 is inclined to one side to align with the center of the vacuum furnace. This allows the material to directly reach the center of the vacuum furnace.

[0067] Furthermore, such as Figure 6As shown, a sleeve 281 is provided on the side wall of the feeding bin 21. The sleeve 281 has a channel in the middle. A cover 285 is provided on the sleeve 281 outside the feeding bin 21. The cover 285 is connected to the sleeve 281 by screws. The flipping mechanism 28 includes a rotating shaft 284 that passes through the sleeve 281 with the channel in the middle and the cover 285. One end of the rotating shaft 284 extends into the feeding bin 21 and is connected to the material cylinder 27. The other end of the rotating shaft 284 extends out of the feeding bin 21 and is connected to the handle 286. A sealing ring 282 and a bearing 283 are provided between the rotating shaft 284 and the sleeve 281.

[0068] Furthermore, the furnace cover body 1 is provided with an observation port 3, a sampling hole 4, and a vacuum connection port 6, the vacuum connection port 6 being used to connect to a vacuum generating device. The observation port 3 is fitted with transparent glass and is always sealed, with a handle for flipping the light shield. The sampling hole 4 has a sealed door, which must be opened before sampling.

[0069] Furthermore, the outer wall 12 is provided with a first water inlet 13 and a second water inlet 14 that communicate with the cooling chamber. One of the first water inlet 13 and the second water inlet 14 can inject cooling water into the cooling chamber, while the other allows cooling water to flow out. The different flow of cooling water carries away heat and cools the furnace cover.

[0070] Furthermore, the furnace cover body 1 is also provided with an argon gas connection pipe 15 (the argon gas connection pipe 15 passes through the cooling chamber, and the opening is located on the inner wall 11). The argon gas connection pipe 15 can inject argon gas into the vacuum furnace to replace the air or to break the vacuum.

[0071] Furthermore, the furnace cover body 1 is also provided with a connecting column 5 for connection with the rotating mechanism, so that the furnace cover body 1 can rotate to disengage from the vacuum furnace.

[0072] Furthermore, a pressure gauge 251 is also provided on the connecting pipe 25, which can measure the pressure inside the feeding hopper 21 (when the feeding hopper 21 is isolated from the vacuum furnace) or the vacuum furnace.

[0073] Furthermore, valve 26 is a vacuum baffle valve. The connecting pipe 25 includes a vertical connecting pipe 252 and a horizontal connecting pipe 253. The horizontal connecting pipe 253 is connected to both valve 26 and the feeding hopper 21. One end of the vertical connecting pipe 252 is connected to the furnace cover body 1, and the other end is connected to valve 26 via a bellows pipe 254. The length of the bellows pipe 254 is extendable to compensate for errors in the height of valve 26 during assembly.

[0074] Based on the above-described preferred embodiments according to this application, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A vacuum furnace lid with a charging mechanism, characterized by, The utility model relates to a vacuum furnace cover, which comprises: a furnace cover body (1) comprising an inner wall (11) and an outer wall (12), a cooling cavity for cooling water flowing being formed between the inner wall (11) and the outer wall (12); a feeding mechanism (2) comprising a feeding bin (21) with a top opening, a bin cover (22) being covered on the feeding bin (21) for sealing the feeding bin (21), the bottom of the feeding bin (21) being communicated to the vacuum furnace through a feeding pipe (23), a feeding valve (24) being installed on the feeding pipe (23), a plurality of feeding cylinders (27) being arranged in the feeding bin (21), the feeding cylinders (27) being connected with a turnover mechanism (28), the feeding bin (21) being further connected with the furnace cover body (1) through a connecting pipe (25), a valve (26) being arranged on the connecting pipe (25), the connecting pipe (25) penetrating through the cooling cavity and the opening of the connecting pipe (25) being located at the inner wall (11).

2. The vacuum furnace lid with a charging mechanism according to claim 1, characterized in that, The feeding cylinders (27) are four and arranged in a cross shape.

3. The vacuum furnace lid with a charging mechanism according to claim 1, characterized in that, A pipeline (29) is further arranged below the feeding valve (24), the pipeline (29) being inclined to one side to be aligned with the middle position of the vacuum furnace.

4. The vacuum furnace lid with a charging mechanism according to claim 1, characterized in that, A sleeve (281) is arranged on the side wall of the feeding bin (21), the sleeve (281) having a passage in the middle, the sleeve (281) being arranged outside the feeding bin (21) and provided with a cylinder cover (285), the cylinder cover (285) being connected with the sleeve (281) through screws, the turnover mechanism (28) comprising a rotating shaft (284) penetrating through the sleeve (281) having the passage in the middle and the cylinder cover (285), one end of the rotating shaft (284) extending into the feeding bin (21) and being connected with the feeding cylinders (27), the other end of the rotating shaft (284) extending out of the feeding bin (21) and being connected with a handle (286), a sealing ring (282) and a bearing (283) being arranged between the rotating shaft (284) and the sleeve (281).

5. The vacuum furnace lid with a charging mechanism according to claim 1, characterized in that, First and second water inlets (13) and (14) are arranged on the outer wall (12) and communicated with the cooling cavity, one of the first and second water inlets (13) and (14) being capable of injecting cooling water into the cooling cavity and the other being capable of making the cooling water flow out.

6. The vacuum furnace lid with a charging mechanism according to claim 1, characterized in that, An argon connecting pipe (15) is further arranged on the furnace cover body (1).

7. The vacuum furnace lid with a charging mechanism according to claim 1, characterized in that, A pressure gauge (251) is further arranged on the connecting pipe (25).

8. The vacuum furnace lid with a charging mechanism according to claim 1, characterized in that, The valve (26) is a vacuum baffle valve, the connecting pipe (25) comprising a vertical connecting pipe (252) and a horizontal connecting pipe (253), the horizontal connecting pipe (253) being communicated with the valve (26) and the feeding bin (21) respectively, one end of the vertical connecting pipe (252) being communicated with the furnace cover body (1) and the other end being communicated with the valve (26) through a corrugated pipe (254).

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