High temperature induction infiltration furnace

Abstract

The utility model discloses a high temperature induction infiltration furnace, including furnace body and with the furnace cover cooperation of furnace body, the furnace body passes through steel structure truss support, the furnace body with form discharge space between the steel structure truss, be connected with vacuum pump through connecting pipeline on the furnace cover, be provided with vacuum valve on the connecting pipeline, be provided with heating device in the furnace body, heating device with the coaxial heart arrangement of furnace body, furnace bottom plate that furnace body lower part is provided with with furnace body cooperation, furnace bottom plate fixed setting is on the mobile car body end face, be fixedly arranged with dry pot structure on the furnace bottom plate, dry pot structure can extend to heating device through the elevating system, the vacuum valve selects the pneumatic baffle valve and pneumatic butterfly valve that adapt in the oiliness exhaust gas work can adjust the size and furnace pressure of exhaust capacity.

Description

Technical Field

[0001] This utility model belongs to the field of induction furnace technology, specifically relating to a high-temperature induction melting furnace. Background Technology

[0002] Reactive infiltration furnaces are widely used in graphitization processes and CVD and CVI processes for carbon / carbon composite materials. Compared with other types of equipment, reactive infiltration furnaces have significant advantages in temperature uniformity and process stability.

[0003] Existing reactive infiltration furnaces are mostly supported and fixed by steel structures, and the loading and unloading method is a top-opening feeding / unloading method. Due to the height limitation of the reactive infiltration furnace, the loading and unloading is complicated and difficult to operate during use. In addition, the existing technology uses a top feeding / unloading method, and since the induction coil is fixed on the inner wall of the furnace, it is not easy to maintain.

[0004] In view of the above factors, this utility model provides a high-temperature induction melting furnace, which adopts a bottom-in and bottom-out feeding method, which facilitates feeding / unloading operations, saves operating time, and improves work efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a high-temperature induction melting furnace to solve the problems mentioned in the background art.

[0006] The purpose of this utility model is achieved through the following technical solution: a high-temperature induction melting furnace, including a furnace body and a furnace cover that cooperates with the furnace body, the furnace body is supported by a steel structure truss, a discharge space is formed between the furnace body and the steel structure truss, and the furnace cover is connected to a vacuum pump through a connecting pipe, and a vacuum valve is provided on the connecting pipe;

[0007] A heating device is installed inside the furnace body, and the heating device is coaxially arranged with the furnace body.

[0008] The lower part of the furnace body is provided with a furnace bottom plate that cooperates with the furnace body, and the furnace bottom plate is fixedly installed on the end face of the moving vehicle body;

[0009] A dry pot structure is fixedly installed on the bottom plate of the furnace, and the dry pot structure can be extended into the heating device through a lifting structure.

[0010] Furthermore, the vacuum valve is selected from pneumatic baffle valves and pneumatic butterfly valves adapted to work in oily exhaust gas, which can adjust the exhaust volume and furnace pressure.

[0011] Furthermore, the lifting structure includes a drive motor and a transmission screw connected to the drive motor. Four transmission screws are arranged along the steel structure truss. One end of the transmission screw is connected to the drive motor, and the other end of the transmission screw is rotatably connected to the bottom platform of the steel structure truss.

[0012] Each of the aforementioned transmission screws is equipped with a lifting nut, and the drive motor drives the transmission screw to rotate, causing the lifting nut to drive the moving vehicle body to move vertically.

[0013] Furthermore, the lifting nut is provided with a receiving end, which is arranged opposite to each other and is in contact with the support platform on the bottom of the mobile vehicle body.

[0014] Furthermore, a temperature measuring device is provided on the furnace body, and the temperature measuring device is positioned at the upper / middle / lower position along the longitudinal direction of the furnace body;

[0015] The temperature measuring device is a thermocouple structure that extends into the furnace body.

[0016] Furthermore, the heating device includes a fixed body, which is a hollow structure, and induction coils are evenly distributed inside the fixed body. The fixed body is fixed to the circumferential wall of the furnace body by bakelite columns.

[0017] Furthermore, the furnace bottom plate is provided with a positioning seat for the dry pot structure, the positioning seat has a groove structure, and the dry pot structure is installed in the positioning seat in a plug-in manner.

[0018] Furthermore, the induction coil is connected to a power supply connection box disposed on the circumferential wall of the furnace body.

[0019] Furthermore, a transfer track is provided at the bottom of the steel structure truss, and the transfer track cooperates with the moving wheels provided at the bottom of the moving vehicle body.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This invention adopts a bottom-in, bottom-out feeding method, which facilitates feeding / unloading operations, saves operating time, and improves work efficiency.

[0022] This utility model adopts an independent heating device, which includes a fixed body. The fixed body has a hollow structure and induction coils are evenly distributed inside the fixed body. The fixed body is fixed to the circumferential wall of the furnace body by bakelite columns, which facilitates maintenance during use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall connection of this utility model;

[0024] Figure 2 This is an enlarged schematic diagram of the lifting structure and the mobile vehicle body of this utility model;

[0025] Figure 3 This is a schematic diagram of the furnace body connecting to the power inlet box of this utility model;

[0026] Figure 4 This is an enlarged schematic diagram of the fixing body of this utility model;

[0027] Figure 5 This is a schematic diagram of the moving track connection of this utility model. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0031] like Figure 1-5 As shown, a high-temperature induction melting furnace includes a furnace body 1 and a furnace cover 2 that cooperates with the furnace body 1. The furnace body 1 is supported by a steel structure truss 3. A discharge space is formed between the furnace body 1 and the steel structure truss 3. The furnace cover 2 is connected to a vacuum pump 6 through a connecting pipe. A vacuum valve 7 is provided on the connecting pipe.

[0032] A heating device 8 is provided inside the furnace body 1, and the heating device 8 is coaxially arranged with the furnace body 1.

[0033] The furnace cover 2 is provided with a filling port, through which additives can be added to the dry pot structure when in use.

[0034] The furnace body 1 is provided with a furnace bottom plate 9 that cooperates with the furnace body 1 at the lower part, and the furnace bottom plate 9 is fixedly installed on the end face of the moving vehicle body 10;

[0035] A dry pot structure 11 is provided on the furnace bottom plate 9, and the dry pot structure 11 can be extended into the heating device 8 through the lifting structure 12.

[0036] To facilitate the adjustment of exhaust volume and furnace pressure during operation by setting a vacuum valve, the vacuum valve 7 is selected from pneumatic baffle valves and pneumatic butterfly valves adapted to working in oily exhaust gas, which can adjust the exhaust volume and furnace pressure.

[0037] To facilitate bottom-in and bottom-out material feeding and discharging during use, the lifting structure 12 includes a drive motor 13 and a transmission screw 14 connected to the drive motor 13. Four transmission screws 14 are arranged along the steel structure truss 3. One end of the transmission screw 14 is connected to the drive motor 13, and the other end of the transmission screw 14 is rotatably connected to the bottom platform of the steel structure truss 3.

[0038] Each of the transmission screws 14 is provided with a lifting nut 15. The drive motor 13 drives the transmission screws 14 to rotate, causing the lifting nut 15 to drive the moving vehicle body 10 to move vertically.

[0039] To facilitate the lifting and lowering of the mobile vehicle body and its coordination with the furnace body during use, the lifting nut 15 is provided with a receiving end 16, which is arranged opposite to each other and contacts and engages with the bottom support platform of the mobile vehicle body 10.

[0040] In order to facilitate real-time monitoring of the temperature inside the furnace body during use, a temperature measuring device 17 is provided on the furnace body 1, and the temperature measuring device 17 is set at the upper / middle / lower positions along the longitudinal direction of the furnace body 1.

[0041] The temperature measuring device 17 is a thermocouple structure, which extends into the furnace body 1.

[0042] The heating device 8 includes a fixed body 18, which is a hollow structure. Induction coils 19 are evenly distributed inside the fixed body 18. The fixed body 18 is fixed to the circumferential wall of the furnace body 1 by bakelite columns.

[0043] In order to fix the dry pot structure 11 in use, a positioning seat 20 for the dry pot structure is provided on the bottom plate 9. The positioning seat 20 has a groove structure, and the dry pot structure 11 is installed in the positioning seat 20 by plugging in.

[0044] The lower quarter of the dry pot structure is a solid structure that is fixed to the positioning seat 20 by a pin. The diameter of the positioning seat 20 is larger than the diameter of the dry pot structure, and the end face of the positioning seat 20 is in contact with the bottom surface of the fixing body 8.

[0045] To facilitate the connection between the induction coil 19 and the power supply connection box 21 during use, and to induce eddy currents in the induction coil to heat the dry pot structure, the induction coil 19 is connected to the power supply connection box 21, which is set on the circumferential wall of the furnace body 1. The connection end of the induction coil 19 passing through the furnace body is set inside the power supply connection box 21.

[0046] In order to facilitate the unloading of materials outside the moving vehicle body during the unloading process, the bottom of the steel structure truss 3 is provided with a transfer track 22, which cooperates with the moving wheels provided at the bottom of the moving vehicle body 10.

[0047] In use, the moving vehicle and the furnace bottom plate fixed on the moving vehicle are lifted upward by the lifting structure to match the bottom opening of the furnace body. The feeding method adopts the bottom in and bottom out method for easy operation. The furnace bottom plate is equivalent to the bottom furnace cover structure. The furnace bottom plate and the furnace body are connected by plugging. The sealing method disclosed in the prior art can be used, which will not be described in detail here.

[0048] A dry pot structure is set on the bottom plate of the furnace. Material is placed in the dry pot structure. After the bottom plate of the furnace is lifted upward by the lifting structure and cooperates with the furnace body, the dry pot structure enters the cavity of the fixed body. An induction coil is fixedly set along the circumference inside the fixed body. The induction coil is connected to a medium frequency power supply through the power supply connection box for heating.

[0049] After the material is processed in the dry pot structure, the motor of the lifting device drives the transmission screw to rotate, and the screw nut moves downward, lowering the moving car body onto the transfer track. The moving car body can move outward along the transfer track to unload the material. When the moving car body moves outward, it can be manually dragged or pushed by an electric push rod. The electric push rod is located on the other side of the moving track (not shown in the figure). The moving car body can be moved forward by extending the electric push rod and pushing against it.

[0050] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-temperature induction melting furnace, characterized in that: It includes a furnace body (1) and a furnace cover (2) that cooperates with the furnace body (1). The furnace body (1) is supported by a steel structure truss (3). A discharge space is formed between the furnace body (1) and the steel structure truss (3). The furnace cover (2) is connected to a vacuum pump (6) through a connecting pipe. A vacuum valve (7) is provided on the connecting pipe. A heating device (8) is provided inside the furnace body (1), and the heating device (8) is coaxially arranged with the furnace body (1); The furnace body (1) is provided with a furnace bottom plate (9) that cooperates with the furnace body (1) at the lower part, and the furnace bottom plate (9) is fixedly installed on the end face of the moving vehicle body (10); A dry pot structure (11) is provided on the bottom plate (9), and the dry pot structure (11) can be extended into the heating device (8) through the lifting structure (12).

2. The high-temperature induction melting furnace according to claim 1, characterized in that: The vacuum valve (7) is selected from pneumatic baffle valves and pneumatic butterfly valves that are suitable for working in oily exhaust gas and can adjust the exhaust volume and furnace pressure.

3. The high-temperature induction melting furnace according to claim 2, characterized in that: The lifting structure (12) includes a drive motor (13) and a transmission screw (14) connected to the drive motor (13). Four transmission screws (14) are arranged along the steel structure truss (3). One end of the transmission screw (14) is connected to the drive motor (13), and the other end of the transmission screw (14) is connected to the bottom platform of the steel structure truss (3) in a rotating manner. Each of the transmission screws (14) is provided with a lifting nut (15). The drive motor (13) drives the transmission screws (14) to rotate, causing the lifting nut (15) to drive the moving vehicle body (10) to move vertically.

4. The high-temperature induction melting furnace according to claim 3, characterized in that: The lifting nut (15) is provided with a receiving end (16), which is arranged opposite to each other and is in contact with the bottom support platform of the mobile vehicle body (10).

5. The high-temperature induction melting furnace according to claim 4, characterized in that: A temperature measuring device (17) is provided on the furnace body (1), and the temperature measuring device (17) is provided at the upper / middle / lower position along the longitudinal direction of the furnace body (1). The temperature measuring device (17) is a thermocouple structure that extends into the furnace body (1).

6. The high-temperature induction melting furnace according to claim 5, characterized in that: The heating device (8) includes a fixed body (18), which is a hollow structure. Induction coils (19) are evenly distributed inside the fixed body (18). The fixed body (18) is fixed to the circumferential wall of the furnace body (1) by bakelite columns.

7. The high-temperature induction melting furnace according to claim 6, characterized in that: The bottom plate (9) is provided with a positioning seat (20) for the dry pot structure. The positioning seat (20) has a groove structure, and the dry pot structure (11) is installed in the positioning seat (20) by plugging in.

8. The high-temperature induction melting furnace according to claim 7, characterized in that: The induction coil (19) is connected to the power supply connection box (21) set on the circumferential wall of the furnace body (1).

9. The high-temperature induction melting furnace according to claim 8, characterized in that: The bottom of the steel truss (3) is provided with a transfer track (22), which cooperates with the moving wheels provided at the bottom of the moving vehicle body (10).

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