Energy-saving vacuum smelting furnace

Abstract

The utility model provides an energy-saving type vacuum smelting furnace which comprises a smelting assembly and a feeding assembly arranged on one side of the smelting assembly, the smelting assembly comprises an outer shell supported on the ground through a base and a vacuum inner furnace arranged in the outer shell, a cavity is formed between the outer shell and the vacuum inner furnace, a connecting pipe is arranged in the cavity, and the connecting pipe is connected with the vacuum inner furnace. The connecting pipe is fixedly connected to the outer wall of the vacuum inner furnace, the two ends of the connecting pipe penetrate through the shell and are fixedly connected with a feeding pipeline and an air pump respectively, and one end of the feeding pipeline is fixedly connected and communicated with the shell and the vacuum inner furnace; by arranging the connecting pipe and the air pump, air in the atmosphere can be pumped into the connecting pipe through the air pump, heat exchange is carried out in the cavity to achieve air heating, and therefore raw materials in the feeding pipeline can be preheated through the heated air, the raw material smelting efficiency is improved, and meanwhile energy loss can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum smelting furnaces, and particularly relates to an energy-saving vacuum smelting furnace. Background Art

[0002] A vacuum smelting furnace is a special high-temperature and high-vacuum reaction furnace, mainly used for melting and recrystallizing materials and other processes by using chemical reactions and physical processes at high temperatures in a vacuum environment.

[0003] After retrieval, a patent with the Chinese patent publication number CN218480929U discloses a vacuum smelting furnace with a flue gas filtering function, including a bottom plate. The right side of the top of the bottom plate is fixedly connected with a vacuum smelting furnace body. The left side of the top of the bottom plate is fixedly connected with a vertical plate. The top of the right side of the vertical plate is fixedly installed with a fan through a positioning plate. The input end of the fan is fixedly connected with an air suction pipe. The input end of the air suction pipe is communicated with the top of the left side of the vacuum smelting furnace body. The output end of the fan is fixedly connected with a third air pipe through a second air pipe. The output end of the third air pipe is fixedly connected with a first air pipe. The output end of the first air pipe is fixedly connected with an exhaust air plate. The bottom of the exhaust air plate is fixedly connected with a filtering box. The bottom of the filtering box is fixedly connected with the top of the bottom plate. Air filter nets are fixedly connected to the left and right sides of the inner cavity of the filtering box through limiting plates.

[0004] The above patent has the following deficiencies: It can extract and filter the flue gas generated during smelting by using a fan and a filtering box and then discharge it, so there is no need to externally connect equipment to treat the flue gas, which is convenient for use. However, a large amount of heat is also generated during the smelting process, and this device cannot effectively utilize the heat, resulting in energy loss, increasing the smelting cost, and reducing the energy efficiency of the entire smelting process, having certain limitations.

[0005] Therefore, an energy-saving vacuum smelting furnace is proposed. Summary of the Utility Model

[0006] In view of this, the embodiments of the present utility model hope to provide an energy-saving vacuum smelting furnace to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0007] The technical solution of the embodiment of the present utility model is realized as follows: An energy-saving vacuum smelting furnace includes a smelting component and a feeding component arranged on one side of the smelting component. The smelting component includes a housing supported on the ground by a base and a vacuum inner furnace arranged inside the housing. A cavity is formed between the housing and the vacuum inner furnace. A connecting pipe is arranged in the cavity. The connecting pipe is fixedly connected to the outer wall of the vacuum inner furnace. Both ends of the connecting pipe penetrate through the housing and are respectively fixedly connected with a feeding pipeline and an air pump. One end of the feeding pipeline is fixedly connected and communicated with the housing and the vacuum inner furnace, and the other end of the feeding pipeline is connected to the feeding component. The air pump is fixedly installed on the outer wall of the housing through a fixing frame, and the input end of the air pump is connected to the atmosphere through an air extraction pipe.

[0008] In some embodiments, a guiding plate is fixedly connected to the inner wall of the vacuum inner furnace through a support rod. A mold box is slidably connected in the guiding plate through a sliding groove, and multiple groups of heating elements are fixed on the inner wall of the vacuum inner furnace.

[0009] In some embodiments, the outer wall of the housing and the vacuum inner furnace are rotatably connected with the same sealing door.

[0010] In some embodiments, the feeding component includes a support frame and a storage tank.

[0011] In some embodiments, the storage tank is supported on the ground through the support frame, and the feeding pipeline is fixedly connected and communicated with the bottom of the storage tank.

[0012] In some embodiments, a valve is installed on the feeding pipeline.

[0013] In some embodiments, a spiral blade is rotatably connected to the inner wall of the feeding pipeline through a rotating shaft, and a motor is fixed to the outer wall of the top of the feeding pipeline through bolts.

[0014] In some embodiments, the output end of the motor is fixedly connected to the rotating shaft through a coupling.

[0015] Due to the above technical solutions, the embodiment of the present utility model has the following advantages:

[0016] 1. An energy-saving vacuum smelting furnace, by setting a connecting pipe and an air pump, can use the air pump to extract the gas in the atmosphere into the connecting pipe and perform heat exchange in the cavity to heat the gas. Thus, the raw materials in the feeding pipeline can be preheated by the heated gas, increasing the raw material smelting efficiency while reducing energy loss.

[0017] 2. An energy-saving vacuum smelting furnace, by setting a storage tank and a valve, can continuously and controllably provide raw material supply to the mold box, thus avoiding the time delay and error caused by manual operation and improving the efficiency of the entire smelting process.

[0018] 3. An energy-saving vacuum smelting furnace, by setting a motor, a rotating shaft and a spiral blade, can realize precise control of the raw material feeding amount by driving the rotation of the rotating shaft and the spiral blade by the motor, thereby ensuring the stability of the smelting process and the reliability of the product quality.

[0019] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is the front view structure diagram of the present utility model;

[0022] Figure 2 It is the sectional view of the smelting component of the present utility model Figure 1 ;

[0023] Figure 3 It is the structure diagram of the smelting component of the present utility model;

[0024] Figure 4 It is the sectional view of the smelting component of the present utility model Figure 2 ;

[0025] Figure 5 It is the connection diagram of the smelting component and the feeding component of the present utility model.

[0026] Reference numerals:

[0027] 1. Smelting component; 2. Feeding component; 3. Base; 4. Outer shell; 5. Vacuum inner furnace; 6. Connecting pipe; 7. Feeding pipeline; 8. Motor; 9. Rotating shaft; 10. Spiral blade; 11. Mold box; 12. Guide plate; 13. Support rod; 14. Sealing door; 15. Air pump; 16. Exhaust pipe; 17. Fixed frame; 18. Support frame; 19. Storage bin; 20. Valve; 21. Heating element. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In the following text, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0029] In the present invention, unless otherwise clearly specified and defined, the first feature being “above” or “below” the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being “below”, “beneath” and “underneath” the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0030] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1:

[0032] As Figures 1-3 shown, an energy-saving vacuum smelting furnace includes a smelting assembly 1 and a feeding assembly 2 disposed on one side of the smelting assembly 1.

[0033] The smelting assembly 1 includes a housing 4 supported on the ground by a base 3 and a vacuum inner furnace 5 disposed inside the housing 4. A cavity is formed between the housing 4 and the vacuum inner furnace 5. A connecting pipe 6 is disposed in the cavity. The connecting pipe 6 is fixedly connected to the outer wall of the vacuum inner furnace 5. Both ends of the connecting pipe 6 penetrate through the housing 4 and are respectively fixedly connected to a feeding pipeline 7 and an air pump 15. One end of the feeding pipeline 7 is fixedly connected and communicated with the housing 4 and the vacuum inner furnace 5. The other end of the feeding pipeline 7 is connected to the feeding assembly 2. The air pump 15 is fixedly installed on the outer wall of the housing 4 through a fixing frame 17. The input end of the air pump 15 is connected to the atmosphere through an air extraction pipe 16.

[0034] When the vacuum inner furnace 5 smelts, the heat generated enters the cavity. The air pump 15 uses the air extraction pipe 16 to extract the normal-temperature gas in the atmosphere into the connecting pipe 6. The gas exchanges heat with the heat in the cavity through the connecting pipe 6. As the air pump 15 continuously sends the gas into the connecting pipe 6, the gas undergoing heat exchange is pushed into the feeding pipeline 7, and can preheat the raw materials in the feeding pipeline 7, thereby reducing the energy loss during the smelting process.

[0035] This device is equipped with a connecting pipe 6 and an air pump 15. By using the air pump 15, the gas in the atmosphere can be extracted into the connecting pipe 6, and heat exchange is carried out in the cavity to heat the gas. Thus, the raw materials in the feeding pipe 7 can be preheated by the heated gas, increasing the smelting efficiency of the raw materials while reducing energy loss.

[0036] As Figure 2 shown, the inner wall of the vacuum inner furnace 5 is fixedly connected with a guide plate 12 through a support rod 13. A mold box 11 is slidably connected in the guide plate 12 through a chute, and multiple heating elements 21 are fixed on the inner wall of the vacuum inner furnace 5. The heating elements 21 can be resistance wires or electric heating plates, etc., and no specific limitation is imposed on them.

[0037] Push the mold box 11 to the deepest part along the chute in the guide plate 12 so that the mold box 11 is located directly below the feeding pipe 7, enabling the feeding pipe 7 to reliably convey the raw materials into the mold box 11, and using the heating elements 21 to heat and smelt the raw materials in the mold box 11.

[0038] As Figure 3 and Figure 4 shown, the outer shell 4 and the outer wall of the vacuum inner furnace 5 are rotatably connected with the same sealing door 14.

[0039] As Figure 5 shown, the feeding assembly 2 includes a support frame 18 and a storage tank 19. The storage tank 19 is supported on the ground by the support frame 18. The feeding pipe 7 is fixedly connected and communicated with the bottom of the storage tank 19, and a valve 20 is installed on the feeding pipe 7.

[0040] When feeding is required, open the valve 20 so that the raw materials in the storage tank 19 are conveyed into the mold box 11 through the feeding pipe 7. When the required smelting raw materials are sufficient, close the valve 20 and the sealing door 14 to make the inside of the vacuum inner furnace 5 in a closed environment for smelting operations.

[0041] This device can continuously and controllably supply raw material replenishment to the mold box 11 by setting the storage tank 19 and the valve 20, thus avoiding the time delay and error caused by manual operation and improving the efficiency of the entire smelting process.

[0042] Embodiment 2:

[0043] An energy-saving vacuum smelting furnace. In this embodiment, the following improvements are made on the basis of Embodiment 1, as Figure 2 shown:

[0044] The inner wall of the feeding pipe 7 is rotatably connected with a spiral blade 10 through a rotating shaft 9, and the outer wall of the top of the feeding pipe 7 is fixed with a motor 8 through bolts. The output end of the motor 8 is fixedly connected with the rotating shaft 9 through a coupling.

[0045] The starting motor 8 drives the rotating shaft 9 to drive the spiral blade 10 to rotate, so that the rotational speed of the spiral blade 10 can be controlled by the motor 8 to adjust the material feeding amount.

[0046] By arranging the motor 8, the rotating shaft 9 and the spiral blade 10, the device can accurately control the conveying amount of raw materials by driving the rotating shaft 9 and the spiral blade 10 to rotate by the motor 8, thereby ensuring the stability of the smelting process and the reliability of the product quality.

[0047] Working principle: When the device is in use, first push the empty mold box 11 symmetrically backward along the guide plate 12 to the deepest position, so that the mold box 11 is located directly below the feeding pipe 7. Then close the sealing door 14 and start the motor 8 to drive the rotating shaft 9 to drive the spiral blade 10 to rotate to convey the raw materials into the mold box 11. Then close the valve 20, and use the sealing door 14 and the valve 20 to seal the vacuum inner furnace 5. Subsequently, use the heating element 21 to smelt the raw materials in the mold box 11. During this period, the heat generated during the smelting of the vacuum inner furnace 5 enters the cavity. The air pump 15 uses the suction pipe 16 to extract the normal-temperature gas in the atmosphere into the connecting pipe 6, and the gas exchanges heat with the heat in the cavity through the connecting pipe 6. As the air pump 15 continuously sends the gas into the connecting pipe 6, the gas undergoing heat exchange is pushed into the feeding pipe 7, and can preheat the raw materials in the feeding pipe 7, thereby reducing the energy consumption during the smelting process. After the smelting is completed, open the sealing door 14, and use tools to take out the mold box 11 from the vacuum inner furnace 5 to avoid burns.

[0048] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions thereof, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. An energy-saving vacuum smelting furnace, comprising a smelting component (1) and a feeding component (2) arranged on one side of the smelting component (1), characterized in that: The smelting component (1) includes a housing (4) supported on the ground by a base (3) and a vacuum inner furnace (5) disposed inside the housing (4). A cavity is formed between the housing (4) and the vacuum inner furnace (5). A connecting pipe (6) is disposed in the cavity. The connecting pipe (6) is fixedly connected to the outer wall of the vacuum inner furnace (5). Both ends of the connecting pipe (6) penetrate through the housing (4) and are respectively fixedly connected to a feeding pipeline (7) and an air pump (15). One end of the feeding pipeline (7) is fixedly connected and communicated with the housing (4) and the vacuum inner furnace (5). The other end of the feeding pipeline (7) is connected to the feeding component (2). The air pump (15) is fixedly installed on the outer wall of the housing (4) through a fixing bracket (17). The input end of the air pump (15) is connected to the atmosphere through an air extraction pipe (16).

2. An energy-saving vacuum smelting furnace according to claim 1, characterized in that: A guide plate (12) is fixedly connected to the inner wall of the vacuum inner furnace (5) through a support rod (13). A die box (11) is slidably connected to the guide plate (12) through a chute. And a plurality of heating elements (21) are fixedly arranged on the inner wall of the vacuum inner furnace (5).

3. An energy-saving vacuum smelting furnace according to claim 1, characterized in that: A sealing door (14) is rotatably connected to the outer walls of the housing (4) and the vacuum inner furnace (5).

4. An energy-saving vacuum smelting furnace according to claim 1, characterized in that: The feeding component (2) includes a support frame (18) and a storage tank (19).

5. An energy-saving vacuum smelting furnace according to claim 4, characterized in that: The storage tank (19) is supported on the ground by the support frame (18). The feeding pipeline (7) is fixedly connected and communicated with the bottom of the storage tank (19).

6. The energy-saving vacuum smelting furnace according to claim 5, wherein: A valve (20) is installed on the feeding pipeline (7).

7. The energy-saving vacuum smelting furnace according to claim 1, wherein: A spiral blade (10) is rotatably connected to the inner wall of the feeding pipeline (7) through a rotating shaft (9). And a motor (8) is fixedly installed on the outer wall of the top of the feeding pipeline (7) through bolts.

8. The energy-saving vacuum smelting furnace according to claim 7, wherein: The output end of the motor (8) is fixedly connected to the rotating shaft (9) through a coupling.

Images