Smelting furnace

Abstract

The utility model discloses a melting furnace, which belongs to the field of melting furnace equipment and comprises a melting chamber, a melting furnace cover, a combined furnace body and a condensing device. The smelting chamber comprises an induction heating coil. The smelting furnace cover is arranged on the top of the smelting chamber. The combined furnace body is arranged in the smelting chamber, a flow guide pipe is arranged at the bottom of the combined furnace body, and the flow guide pipe penetrates through the smelting chamber and communicates with the outside. The condensing device comprises a condensing block and a water-cooling circulating guide pipe, the condensing block is arranged on the side wall of the flow guide pipe, and the water-cooling circulating guide pipe penetrates through the interior of the condensing block. Molten liquid in a high-temperature state can be solidified after being cooled, by means of the phenomenon, the temperature of the pipe wall of the flow guide pipe can be adjusted through the condensation block by controlling circulation of a cooling medium in the water-cooling circulation guide pipe, and then the phase state of the molten liquid in the flow guide pipe can be controlled. The condensation block serves as a triggering condition for opening and closing the flow guide pipe, the control mode is simple, the melting furnace does not need to be moved in the whole process, and materials are conveniently guided out.

Description

Technical Field

[0001] This utility model belongs to the field of melting furnace equipment, specifically a melting furnace. Background Technology

[0002] A melting furnace is a device that heats and melts solid materials through induction, commonly used in waste treatment, and the smelting and processing of metallic or non-metallic materials. Once the furnace melts the solid material to a liquid state, it becomes difficult to remove the high-temperature liquid material from the furnace interior. Because the high temperatures inside the furnace can easily damage delicate mechanical components, it is impractical to install valves on the furnace walls for guiding the liquid material. A common method is to pour the material out from the top of the furnace by tilting it, but this method is time-consuming and labor-intensive due to the large size and high internal temperature of the furnace, and tilting can easily cause liquid splashing. Utility Model Content

[0003] The purpose of this invention is to provide a melting furnace to solve the problems mentioned in the prior art.

[0004] A melting furnace is provided, comprising:

[0005] A melting chamber, which includes induction heating coils;

[0006] A melting furnace cover, which is disposed at the top of the melting chamber;

[0007] A combined furnace body is disposed inside the melting chamber, and the induction heating coil is disposed around the periphery of the combined furnace body. A guide pipe is provided at the bottom of the combined furnace body, and the guide pipe passes through the melting chamber and communicates with the outside.

[0008] A condensation device includes a condenser block and a water-cooled circulation conduit. The condenser block is disposed on the side wall of the conduit, and the water-cooled circulation conduit passes through the interior of the condenser block.

[0009] Furthermore, the condensation device also includes a cylinder guide rail and a slider, the water-cooled circulation duct is fixedly connected to the slider, and the slider is slidably connected to the cylinder guide rail.

[0010] Furthermore, the condensation device also includes a mounting base, a mounting flange, and a buffer spring. The cylinder guide rail is fixedly connected to the mounting base, the mounting flange is located at one end of the mounting base near the condenser block, and the buffer spring is sleeved around the water-cooled circulation duct and fixedly connected to the end of the slider near the mounting flange.

[0011] Furthermore, the contact area between the condenser block and the guide tube is provided with an arc-shaped groove that can fit into the guide tube.

[0012] Furthermore, a water-cooled jacket is provided inside the side wall of the smelting chamber and the molten furnace cover, and the water-cooled jacket is connected to the outside by several cooling water connecting pipes.

[0013] Furthermore, the furnace cover is equipped with an observation mirror and a camera mirror, and the camera mirror is equipped with a camera.

[0014] Furthermore, the combined furnace body includes a smelting crucible, a graphite crucible, an insulation cylinder, and a protective sleeve arranged sequentially from the inside out.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] Molten metal at high temperatures solidifies upon cooling. This phenomenon can be utilized to control the flow of cooling medium within the water-cooled circulation pipe, allowing the condensate to regulate the temperature of the pipe wall and thus control the phase of the molten metal inside. Using the condensate as the trigger for opening and closing the pipe simplifies the control method, eliminates the need to move the furnace, and facilitates material removal. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Fig. 1 This is a schematic diagram of the overall structure of a melting furnace;

[0019] Fig. 2 A cross-sectional view of a melting furnace;

[0020] Fig. 3 A schematic diagram of the condensation device provided in an embodiment of this utility model.

[0021] In the diagram: 1. Melting chamber; 11. Heating coil; 12. Water-cooled jacket; 13. Cooling water connecting pipe; 2. Melting furnace cover; 21. Observation mirror; 22. Camera mirror; 23. Camera; 3. Combined furnace body; 31. Guide pipe; 32. Melting crucible; 33. Graphite crucible; 34. Insulation cylinder; 35. Protective sleeve; 4. Condensation device; 41. Condensate block; 411. Arc-shaped groove; 42. Water-cooled circulation pipe; 43. Cylinder guide rail; 44. Slider; 45. Mounting seat; 46. Mounting flange; 47. Buffer spring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Please see Figs. 1-3 As shown in the embodiment of this utility model, a melting furnace includes a melting chamber 1, a melting furnace cover 2, a combined furnace body 3, and a condensing device 4. The melting chamber 1 includes an induction heating coil 11. The melting furnace cover 2 is disposed on the top of the melting chamber 1. The combined furnace body is disposed inside the melting chamber 1, the induction heating coil 11 is disposed around the periphery of the combined furnace body 3, and a guide pipe 31 is provided at the bottom of the combined furnace body 3, passing through the melting chamber 1 and communicating with the outside. The condensing device 4 includes a condenser block 41 and a water-cooled circulation conduit 42. The condenser block 41 is disposed on the side wall of the guide pipe 31, and the water-cooled circulation conduit 42 passes through the interior of the condenser block 41.

[0025] When the material is smelted in the combined furnace body 3, a cooling medium flows through the water-cooled circulation conduit 42, which lowers the temperature of the condensate block 41. The condensate block 41 comes into contact with the guide pipe 31, keeping the guide pipe 31 at a low temperature, causing the molten liquid inside the guide pipe 31 to solidify. This prevents the molten liquid in the combined furnace body 3 from flowing out of the guide pipe 31 during the heating process. After heating is complete, the flow of the cooling medium in the water-cooled circulation conduit 42 is stopped, and the solidified molten liquid in the guide pipe 31 is reheated to a molten state and then flows out of the guide pipe 31.

[0026] The condensation device 4 also includes a cylinder guide rail 43 and a slider 44. The water-cooled circulation conduit 42 is fixedly connected to the slider 44, and the slider 44 is slidably connected to the cylinder guide rail 43. The slider 44 can slide along a fixed track on the cylinder guide rail 43, thereby driving the water-cooled circulation conduit 42 to move along the track. When the furnace is heating, the slider 44 drives the water-cooled circulation conduit 42 to move, and the water-cooled circulation conduit 42 moves the condensate block 41 to the guide pipe 31, so that the condensate block 41 contacts the guide pipe 31 to cool it down. After heating is completed, the slider 44 drives the water-cooled circulation conduit 42 to retract, so that the condensate block 41 is separated from the guide pipe 31, preventing the high-temperature melt in the guide pipe 31 from damaging the condensate block 41.

[0027] The condensing device 4 also includes a mounting base 45, a mounting flange 46, and a buffer spring 47. The cylinder guide rail 43 is fixedly connected to the mounting base 45. The mounting flange 46 is located at the end of the mounting base 45 near the condenser block 41. The buffer spring 47 is sleeved around the water-cooled circulation duct 42 and fixedly connected to the end of the slider 44 near the mounting flange 46. The mounting base 45 serves as the main mounting bracket for the condensing device 4, used to mount the condensing device 4 onto the melting furnace. The mounting flange 46 is used to fix the water-cooled circulation duct 42. The linear bearing on the mounting flange 46 guides the water-cooled circulation duct 42, enhancing its stability. Furthermore, when the slider 44 moves the water-cooled circulation duct 42, the buffer spring 47 contacts the mounting flange 46, providing a buffering effect and preventing the slider 44 from directly impacting the mounting flange 46.

[0028] The contact area between the condenser block 41 and the guide tube 31 is provided with an arc-shaped groove 411 that fits snugly against the guide tube 31. The condenser block 41 serves as the temperature transfer medium between the water-cooled circulation conduit 42 and the guide tube 31; therefore, the transfer efficiency depends on the contact area between the condenser block 41 and the guide tube 31. The arc-shaped groove 411 conforms to the shape of the guide tube 31, maximizing the contact area between the condenser block 41 and the guide tube 31 and improving the temperature transfer efficiency.

[0029] The side walls of the melting chamber 1 and the molten furnace cover 2 are equipped with water-cooled jackets 12, which are connected to the outside by several cooling water pipes 13. The cylinder of the melting chamber 1 is made of double-layer high-quality 304 stainless steel through welding and processing. The water-cooled jacket 12 is circulated with water for cooling, which can effectively protect the melting chamber 1 from damage caused by the high temperature during melting. The molten furnace cover 2 is cast with high-temperature, high-strength castable material. The water-cooled jacket 12 is circulated with water for cooling, which can prevent the high temperature from damaging the molten furnace cover 2 and causing slag on the furnace cover.

[0030] The furnace cover 2 is equipped with an observation window 21 and a camera window 22, with a camera 23 mounted on the camera window 22. Operators can observe the interior of the furnace through the observation window 21, and the camera window 22 allows observation of the interior through the camera 23, facilitating real-time monitoring of the melting process. The camera 23 also enables unmanned observation around the furnace, enhancing safety.

[0031] The combined furnace body 3 includes, from the inside out, a melting crucible 32, a graphite crucible 33, a heat-insulating cylinder 34, and a protective sleeve 35. Medium-frequency induction heating, using the graphite crucible 33 as the heating element, heats and melts the material inside the melting crucible 32, transforming the solid into a liquid state, resulting in high heating efficiency. The heat-insulating cylinder 34 provides insulation, and the protective sleeve 35 provides protection.

[0032] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A melting furnace, characterized in that, include: The melting chamber (1) includes an induction heating coil (11); A melting furnace cover (2) is disposed on top of the melting chamber (1); The combined furnace body (3) is located inside the melting chamber (1), the induction heating coil (11) is located on the periphery of the combined furnace body (3), and a guide pipe (31) is provided at the bottom of the combined furnace body (3). The guide pipe (31) passes through the melting chamber (1) and communicates with the outside. The condensation device (4) includes a condensation block (41) and a water-cooled circulation conduit (42). The condensation block (41) is disposed on the side wall of the guide pipe (31), and the water-cooled circulation conduit (42) passes through the interior of the condensation block (41).

2. A melting furnace according to claim 1, characterized in that, The condensation device (4) also includes a cylinder guide rail (43) and a slider (44). The water cooling circulation pipe (42) is fixedly connected to the slider (44), and the slider (44) is slidably connected to the cylinder guide rail (43).

3. A melting furnace according to claim 2, characterized in that, The condensation device (4) also includes a mounting base (45), a mounting flange (46), and a buffer spring (47). The cylinder guide rail (43) is fixedly connected to the mounting base (45). The mounting flange (46) is located at one end of the mounting base (45) near the condenser block (41). The buffer spring (47) is sleeved on the periphery of the water-cooled circulation duct (42) and fixedly connected to the end of the slider (44) near the mounting flange (46).

4. A melting furnace according to claim 3, characterized in that, The contact area between the condenser block (41) and the guide tube (31) is provided with an arc-shaped groove (411) that can fit with the guide tube (31).

5. A melting furnace according to any one of claims 1 to 4, characterized in that, A water-cooled jacket (12) is provided inside the side wall of the smelting chamber (1) and the molten furnace cover (2), and the water-cooled jacket (12) is connected to the outside by a number of cooling water connecting pipes (13).

6. A melting furnace according to any one of claims 1 to 4, characterized in that, The furnace cover (2) is provided with an observation mirror (21) and a camera mirror (22), and the camera mirror (22) is provided with a camera (23).

7. A melting furnace according to any one of claims 1 to 4, characterized in that, The combined furnace body (3) includes a smelting crucible (32), a graphite crucible (33), an insulation cylinder (34), and a protective sleeve (35) arranged sequentially from the inside to the outside.

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