Gas crucible furnace with waste heat recycling function

Abstract

The utility model relates to the technical field of crucible furnaces, and discloses a gas crucible furnace with waste heat recycling, which comprises a main body and a connecting block, the connecting block is fixedly connected to one side of the main body, the middle part of the main body is fixedly connected with a furnace body, the inside of the main body is fixedly connected with a combustion box, and the combustion box is fixedly connected with the furnace body. The furnace body is fixedly connected to the middle of the combustion box, a control panel is fixedly connected to one side of the connecting block, a heating assembly is arranged in the connecting block, and one end of the heating assembly is fixedly connected to the middle of the combustion box. According to the energy-saving and environment-friendly stove, under the mutual cooperation of the smoke exhaust pipe, the cavity, the air inlet pipe, the exhaust fan, the groove and other structures, smoke can heat the periphery of the stove body in the cavity and can preheat air through the exhaust fan, the combustion efficiency is improved, and the energy-saving and environment-friendly stove is energy-saving and environment-friendly. The problem that the waste heat recycling effect is not ideal is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of crucible furnaces, in particular to a gas-fired crucible furnace with waste heat recycling function. Background Art

[0002] Gas crucible furnace is a kind of equipment used for high temperature experiments and material processing. It is usually composed of crucible, burner and heating element, which can provide high temperature environment for heating, sintering, melting and other processing of materials. During the operation of gas crucible furnace, a lot of waste heat will be generated. If the waste heat is not reasonably used, it is equivalent to wasting part of the energy. In order to reduce energy consumption and operating costs, it is necessary to make full use of the waste heat.

[0003] After searching, Chinese patent announcement number: CN216815013U discloses an energy-saving gas crucible furnace, including a furnace body and a crucible furnace, the furnace body is provided with an inner cavity, the crucible furnace is installed in the inner cavity, a burner is fixedly installed on the right side of the furnace body, a flame guide cavity is horizontally provided in the furnace body, the flame spraying end of the burner is connected with the inner cavity through the flame guide cavity, a tempering component is vertically fixedly installed on the right side of the furnace body, the tempering component includes a chimney pipe and a chimney head, the chimney pipe is vertically fixedly installed on the right side of the furnace body, the fan is horizontally radially fixedly installed on the outside of the chimney pipe, the chimney head is horizontally fixedly installed on the left side of the chimney pipe, the chimney pipe is connected with the inner cavity through a flue gas inlet, and a preheating component is arranged in the chimney pipe. The utility model effectively solves the problem that flue gas is directly discharged into the atmosphere during the combustion process of the existing crucible furnace, resulting in heat waste and failure to achieve energy saving and environmental protection.

[0004] Although the above technology can prevent flue gas from being directly discharged into the atmosphere, thus reducing heat waste to a certain extent, the above technology heats the top of the crucible furnace with flue gas through a chimney pipe and a chimney head, and the flue gas will be accompanied by heat loss in the process of reaching the crucible furnace, and in the process of heating the material, the top of the crucible furnace is sealed with a furnace cover, so that the effect of flue gas directly heating the crucible furnace is poor, resulting in the above technical solution The effect of recycling waste heat is not ideal. Therefore, a gas-fired crucible furnace with waste heat recycling is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a gas crucible furnace with waste heat recycling, aiming to improve the problem that the effect of waste heat recycling in the above technology is not ideal.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gas crucible furnace with waste heat recycling, comprising a main body and a connecting block, the connecting block is fixedly connected to one side of the main body, the middle part of the main body is fixedly connected to a furnace body, the interior of the main body is fixedly connected to a combustion box, the furnace body is fixedly connected to the middle part of the combustion box, one side of the connecting block is fixedly connected to a control panel, a heating assembly is arranged inside the connecting block, one end of the heating assembly is fixedly connected to the middle part of the combustion box, the middle part of the connecting block is fixedly connected to an air intake pipe, grooves are provided in the connecting block and the interior of the main body, a cavity is provided in the interior of the main body, a smoke exhaust pipe is fixedly connected to the top of the combustion box, one end of the smoke exhaust pipe is arranged inside the cavity, the cavity is arranged on the periphery of the furnace body, an exhaust fan is fixedly connected to the middle part of the connecting block, the input end of the exhaust fan is arranged in the middle part of the groove, and the output end of the exhaust fan is arranged in the middle part of the heating assembly.

[0007] As a further description of the above technical solution:

[0008] The heating assembly includes a burner, which is fixedly connected to the middle of the connecting block. One end of the connecting block is fixedly connected to a flame guide tube, the other end of the flame guide tube is fixedly connected to the middle of the combustion box, and the output end of the exhaust fan is fixedly connected to the middle of the flame guide tube.

[0009] As a further description of the above technical solution:

[0010] Two sliding assemblies are provided on the top of the main body, and a support plate is fixedly connected to the top of each of the two sliding assemblies, wherein a motor is fixedly connected to the top of one of the support plates, and a side plate is fixedly connected to the top of the other support plate, a connecting rod is fixedly connected to the output end of the motor, and two fixed plates are fixedly connected to one side of the connecting rod, a sealing assembly is provided between the two fixed plates, and the two fixed plates are rotatably connected to one side of the side plate.

[0011] As a further description of the above technical solution:

[0012] The sliding assembly includes a transverse plate, which is fixedly connected to the top of the main body. A sliding groove is provided in the middle of the transverse plate. Two cylinders are slidingly connected to the middle of the sliding groove. The other ends of the two cylinders are fixedly connected to the bottom of the support plate.

[0013] As a further description of the above technical solution:

[0014] The sealing assembly comprises a discharge box, which is fixedly connected between the two fixed plates, a cover plate is fixedly connected to the bottom of the discharge box, and the cover plate is slidably connected to the top of the main body.

[0015] As a further description of the above technical solution:

[0016] The middle part of the discharge box is slidably connected with a slide plate, and one end of the slide plate is rotatably connected with a handle.

[0017] As a further description of the above technical solution:

[0018] The groove is communicated with the cavity.

[0019] As a further description of the above technical solution:

[0020] The two transverse plates and the plurality of cylinders are not in contact with the cover plate.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, with the cooperation of the exhaust pipe, cavity, air inlet pipe, exhaust fan, groove and other structures, the flue gas can not only heat the periphery of the furnace body inside the cavity, but also preheat the air through the exhaust fan, thereby improving the combustion efficiency and solving the problem of unsatisfactory effect of waste heat recovery and utilization.

[0023] 2. In the utility model, with the mutual cooperation of the cylinder, motor, discharge box, slide plate, cover plate and other structures, the material inside the discharge box can be preheated, and the discharge box can be turned over so that the material inside the discharge box can quickly enter the crucible furnace, thereby realizing the preheating of the material and the rapid addition of the material to improve the work efficiency of melting the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of a gas-fired crucible furnace with waste heat recycling proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the chute of the gas crucible furnace with waste heat recycling proposed by the utility model;

[0026] Figure 3 The utility model is a schematic diagram of the structure of the cavity of the gas crucible furnace with waste heat recycling.

[0027] Legend:

[0028] 1. Main body; 2. Air inlet pipe; 3. Control panel; 4. Connecting block; 5. Cylinder; 6. Motor; 7. Discharge box; 8. Slide plate; 9. Horizontal plate; 10. Slide groove; 11. Support plate; 12. Side plate; 13. Connecting rod; 14. Handle; 15. Fixed plate; 16. Cover plate; 17. Groove; 18. Furnace body; 19. Combustion box; 20. Burner; 21. Exhaust fan; 22. Flame guide tube; 23. Smoke exhaust pipe; 24. Cavity. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 and Figure 3 The utility model provides an embodiment: a gas crucible furnace with waste heat recycling, comprising a main body 1 and a connecting block 4, the connecting block 4 is fixedly connected to one side of the main body 1, a furnace body 18 is fixedly connected to the middle of the main body 1, a combustion box 19 is fixedly connected to the inside of the main body 1, the furnace body 18 is fixedly connected to the middle of the combustion box 19, a control panel 3 is fixedly connected to one side of the connecting block 4, a heating component is arranged inside the connecting block 4, one end of the heating component is fixedly connected to the middle of the combustion box 19, an air intake pipe 2 is fixedly connected to the middle of the connecting block 4, and the connecting block (4) A groove (17) is provided inside the main body (1), a cavity 24 is provided inside the main body 1, the groove (17) is communicated with the cavity (24), a smoke exhaust pipe 23 is fixedly connected to the top of the combustion box 19, one end of the smoke exhaust pipe 23 is arranged inside the cavity 24, the cavity 24 is arranged on the periphery of the furnace body 18, an exhaust fan 21 is fixedly connected to the middle of the connecting block 4, the input end of the exhaust fan (21) is arranged in the middle of the groove (17), and the output end of the exhaust fan (21) is arranged in the middle of the heating component.

[0031] Specifically, by placing the material into the interior of the furnace body 18, and then operating the control panel 3, the heating component heats the bottom of the furnace body 18 inside the combustion box 19, and the smoke generated when the heating component burns is discharged from the interior of the combustion box 19 through the exhaust pipe 23. Since the cavity 24 is arranged on the periphery of the furnace body 18, the smoke in the cavity 24 can heat the periphery of the furnace body 18. While the burner 20 heats the furnace body 18, the exhaust fan 21 is operated through the control panel 3 to allow outside air to enter the interior of the groove 17 through the air intake pipe 2. Since the groove 17 is connected to the cavity 24, the smoke inside the cavity 24 will exchange heat with the outside air to achieve preheating of the outside air. Then, the preheated air is introduced into the interior of the heating component through the exhaust fan 21, so that the fuel can be burned more fully, reducing fuel waste and improving combustion efficiency.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The heating component includes a burner 20, which is fixedly connected to the middle of the connecting block 4, one end of the connecting block 4 is fixedly connected to a flame guide tube 22, the other end of the flame guide tube 22 is fixedly connected to the middle of the combustion box 19, the output end of the exhaust fan (21) is fixedly connected to the middle of the flame guide tube (22), two sliding components are arranged on the top of the main body 1, the tops of the two sliding components are fixedly connected to a support plate 11, the top of one of the support plates 11 is fixedly connected to a motor 6, the top of the other support plate 11 is fixedly connected to a side plate 12, the output end of the motor 6 is fixedly connected to a connecting rod 13, one side of the connecting rod 13 is fixedly connected to two fixed plates 15, a sealing component is arranged between the two fixed plates 15, and the two fixed plates 15 are rotatably connected to one side of the side plate 12.

[0033] Specifically, the heating component uses the control panel 3 to make the burner 20 heat the bottom of the furnace body 18 inside the combustion box 19 through the flame guide tube 22, and the smoke generated by the combustion of the gas in the burner 20 is discharged into the cavity 24 through the exhaust pipe 23, and the preheated air in the groove 17 will enter the middle of the flame guide tube 22 through the exhaust fan 21, so that the fuel can be burned more fully, reducing fuel waste and improving combustion efficiency. The sealing component moves the cover plate 16 to the top of the furnace body 18, so that during the heating of the furnace body 18, the heat loss through the opening at the top of the furnace body 18 is reduced, thereby improving the heating efficiency of the device for the internal material of the furnace body 18, and by adding a discharge box 7 on the top of the cover plate 16, the material placed in the discharge box 7 can be preheated during the heating of the furnace body 18, thereby making full use of the waste heat of the device.

[0034] Reference Figure 1 , Figure 2 and Figure 3 The sliding assembly includes a transverse plate 9, which is fixedly connected to the top of the main body 1. A slide groove 10 is opened in the middle of the transverse plate 9. Two cylinders 5 are slidably connected to the middle of the slide groove 10. The other ends of the two cylinders 5 are fixedly connected to the bottom of the support plate 11. The sealing assembly includes a discharge box 7, which is fixedly connected between two fixed plates 15. A slide plate 8 is slidably connected to the middle of the discharge box 7. A handle 14 is rotatably connected to one end of the slide plate 8. A cover plate 16 is fixedly connected to the bottom of the discharge box 7. The cover plate 16 is slidably connected to the top of the main body 1. The two transverse plates 9 and the multiple cylinders 5 are not in contact with the cover plate 16.

[0035] Specifically, by moving the cylinder 5 in the middle of the chute 10, the cover plate 16 can drive the discharge box 7 to move on the top of the main body 1, so that in the process of discharging the device, the position of the cylinder 5 can be moved to avoid adverse effects on the discharge. In the process of heating the material, the cover plate 16 can be moved to the top of the furnace body 18 by moving the cylinder 5 to preheat the material inside the discharge box 7. At the same time, when adding material to the inside of the furnace body 18, the cylinder 5 can drive the support plate 11 to move upward, so that the motor 6 and the connecting rod 13 drives the fixed plate 15 and the discharge box 7 to move upward together. When they move to a certain height, the motor 6 drives the connecting rod 13 to rotate, so that the connecting rod 13 drives the two fixed plates 15 to rotate, and the two fixed plates 15 drive the discharge box 7 to rotate. When the discharge box 7 rotates to a certain angle, the handle 14 is pulled to make the slide plate 8 slide in the middle of the discharge box 7, so that the material inside the discharge box 7 moves to the inside of the furnace body 18, and the material is preheated and quickly added to improve the efficiency of melting the material.

[0036] Working principle: by placing the material to be heated inside the furnace body 18, and then sliding the cylinder 5 to move the cover plate 16 and the discharge box 7 to the top of the furnace body 18, the material inside the discharge box 7 can be preheated when the material inside the furnace body 18 is heated, and then the burner 20 is used to heat the bottom of the furnace body 18 through the control panel 3, and the flue gas generated by the heating is discharged to the inside of the cavity 24 through the exhaust pipe 23, so that the flue gas can heat the periphery of the furnace body 18 inside the cavity 24, and at the same time, the exhaust fan 21 is started to allow the outside air to enter the inside of the groove 17 through the intake pipe 2, and then the flue gas will exchange heat with the outside air inside the groove 17 to preheat the outside air, and then the preheated air is moved to the inside of the flame guide tube 22 through the exhaust fan 21. By preheating the air, the fuel can be burned more fully, reducing fuel waste and improving combustion efficiency.

[0037] The cylinder 5 drives the support plate 11 to move upward, so that the support plate 11 drives the motor 6 and the connecting rod 13 to move upward synchronously. Through the fixation between the fixed plate 15 and the discharge box 7, the fixed plate 15 and the discharge box 7 move upward synchronously following the connecting rod 13. Then, when the discharge box 7 moves to a certain height, the motor 6 drives the connecting rod 13 to rotate, so that the discharge box 7 rotates synchronously. When the discharge box 7 is flipped to a certain angle, the handle 14 is pulled to make the slide plate 8 slide in the middle of the discharge box 7, so that the material inside the discharge box 7 can be quickly moved to the inside of the furnace body 18.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.

Claims

1. A gas-fired crucible furnace with waste heat recycling, comprising a main body (1) and a connecting block (4), characterized in that: The connecting block (4) is fixedly connected to one side of the main body (1), a furnace body (18) is fixedly connected to the middle of the main body (1), a combustion box (19) is fixedly connected to the inside of the main body (1), the furnace body (18) is fixedly connected to the middle of the combustion box (19), a control panel (3) is fixedly connected to one side of the connecting block (4), a heating component is arranged inside the connecting block (4), one end of the heating component is fixedly connected to the middle of the combustion box (19), an air intake pipe (2) is fixedly connected to the middle of the connecting block (4), and the connecting block (4) ) and the main body (1) are both provided with a groove (17), the main body (1) is provided with a cavity (24), the top of the combustion box (19) is fixedly connected with a smoke exhaust pipe (23), one end of the smoke exhaust pipe (23) is arranged inside the cavity (24), the cavity (24) is arranged on the periphery of the furnace body (18), the middle part of the connecting block (4) is fixedly connected with an exhaust fan (21), the input end of the exhaust fan (21) is arranged in the middle part of the groove (17), and the output end of the exhaust fan (21) is arranged in the middle part of the heating component.

2. The gas-fired crucible furnace with waste heat recycling according to claim 1, characterized in that: The heating assembly comprises a burner (20), the burner (20) being fixedly connected to the middle of the connecting block (4), one end of the connecting block (4) being fixedly connected to a flame guide tube (22), the other end of the flame guide tube (22) being fixedly connected to the middle of the combustion box (19), and the output end of the exhaust fan (21) being fixedly connected to the middle of the flame guide tube (22).

3. The gas-fired crucible furnace with waste heat recycling according to claim 1, characterized in that: Two sliding assemblies are arranged on the top of the main body (1), and the tops of the two sliding assemblies are fixedly connected to a support plate (11), the top of one of the support plates (11) is fixedly connected to a motor (6), and the top of the other support plate (11) is fixedly connected to a side plate (12), the output end of the motor (6) is fixedly connected to a connecting rod (13), one side of the connecting rod (13) is fixedly connected to two fixed plates (15), a sealing assembly is arranged between the two fixed plates (15), and the two fixed plates (15) are rotatably connected to one side of the side plate (12).

4. The gas-fired crucible furnace with waste heat recycling according to claim 3, characterized in that: The sliding assembly comprises a transverse plate (9), the transverse plate (9) being fixedly connected to the top of the main body (1), a slide groove (10) being provided in the middle of the transverse plate (9), two cylinders (5) being slidably connected to the middle of the slide groove (10), and the other ends of the two cylinders (5) being fixedly connected to the bottom of the support plate (11).

5. The gas-fired crucible furnace with waste heat recycling according to claim 4, characterized in that: The sealing assembly comprises a discharge box (7), the discharge box (7) is fixedly connected between the two fixed plates (15), the bottom of the discharge box (7) is fixedly connected with a cover plate (16), and the cover plate (16) is slidably connected to the top of the main body (1).

6. The gas-fired crucible furnace with waste heat recycling according to claim 5, characterized in that: The middle part of the discharge box (7) is slidably connected to a slide plate (8), and one end of the slide plate (8) is rotatably connected to a handle (14).

7. The gas-fired crucible furnace with waste heat recycling according to claim 1, characterized in that: The groove (17) is communicated with the cavity (24).

8. The gas-fired crucible furnace with waste heat recycling according to claim 5, characterized in that: The two transverse plates (9) and the plurality of cylinders (5) are not in contact with the cover plate (16).

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