A high-efficiency heat dissipation type aluminum ingot production melting furnace

Abstract

This utility model relates to the technical field of metal smelting equipment and discloses a high-efficiency heat-dissipating aluminum ingot production melting furnace, including a furnace body, a top cover, a motor, and a rotating shaft. An eccentric wheel is fixedly connected to the free end of the rotating shaft extending into the furnace body, and a stirring paddle is eccentrically fixed to the bottom of the eccentric wheel. When the motor drives the rotating shaft, the eccentric wheel drives the stirring paddle to asymmetrically and non-uniformly agitate the aluminum liquid inside the furnace. Furthermore, a cleaning plate driven by a flue gas-driven impeller is installed inside the exhaust duct connected to the top cover, achieving self-cleaning of the flue. A condenser tube for circulating cooling is fixed around the outer wall of the furnace body. This utility model solves the problems of uneven stirring and low melting efficiency in existing technologies. By enhancing the mixing of the aluminum liquid, it achieves more uniform heating, significantly improving melting efficiency. Moreover, the combination of flue self-cleaning and the active heat dissipation structure of the furnace body effectively ensures the stability of equipment operation and a long service life.

Description

Technical Field

[0001] This utility model relates to the field of metal smelting equipment technology, and in particular to a high-efficiency heat dissipation type aluminum ingot production melting furnace. Background Technology

[0002] Aluminum ingots are an important raw material in industrial production, and their production process mainly relies on the melting furnace to heat and melt the aluminum raw materials. During the smelting process, in order to ensure that the aluminum raw materials can be melted quickly and uniformly, improve production efficiency, and guarantee the quality of the final molten aluminum, it has become a common technical means to install a stirring device in the melting furnace.

[0003] Existing melting furnaces typically employ a symmetrical structure in their stirring devices, with the stirring paddle positioned at the end of a central rotating shaft. When the motor drives the shaft to rotate, the stirring paddle performs regular, symmetrical circular motions within the furnace. While this stirring method can generate some disturbance to the molten aluminum, its stirring pattern is relatively simple and regular.

[0004] From a fluid dynamics perspective, this symmetrical stirring easily creates a stable, integrated vortex within the furnace, resulting in strong stratification of the molten aluminum. Sufficient convection and mixing are difficult to achieve between the molten aluminum near the furnace wall (high-temperature zone) and the aluminum material to be melted in the central area, leading to low heat transfer efficiency. This directly results in uneven heat distribution within the furnace; the molten aluminum near the heat source may experience localized overheating, while some aluminum material melts slowly, thus prolonging the overall melting time, increasing unit energy consumption, and adversely affecting the final uniformity of the molten aluminum composition.

[0005] Therefore, this utility model proposes a high-efficiency heat dissipation type aluminum ingot production melting furnace to overcome the shortcomings of the prior art. Summary of the Invention

[0006] In view of the problems existing in the aluminum ingot production melting furnace, such as insufficient mixing of aluminum liquid, low heat transfer efficiency, long overall melting time and high energy consumption due to the symmetrical stirring structure and single stirring mode, this utility model aims to provide a high-efficiency heat dissipation aluminum ingot production melting furnace with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a high-efficiency heat dissipation type aluminum ingot production melting furnace, including: furnace body, top cover sealing and covering the top opening of the furnace body, motor base fixed to the top of the top cover, motor installed and fixed on the motor base, rotating shaft, eccentric wheel and stirring paddle.

[0008] The drive end of the shaft passes through the motor mount and is connected to the output end of the motor, while the free end of the shaft rotates through the top cover and extends into the interior of the furnace body.

[0009] Furthermore, the eccentric wheel is fixedly connected to the free end of the rotating shaft located inside the furnace body, while the stirring paddle is eccentrically fixed on the side of the eccentric wheel away from the rotating shaft. Through this combination structure of the eccentric wheel and the stirring paddle, when the motor drives the rotating shaft to rotate, the stirring paddle can perform asymmetrical and non-uniform stirring inside the furnace body.

[0010] Preferably, a hollow exhaust pipe is fixedly connected to the top of the top cover. A connecting pin is rotatably provided inside the exhaust pipe. A fan wheel is fixedly connected to the upper end of the connecting pin. A cleaning plate is fixedly connected to the outer periphery of the connecting pin, and the outer edge of the cleaning plate elastically abuts against the inner wall of the exhaust pipe.

[0011] Preferably, a smoke hood is fixedly connected to the top opening of the smoke exhaust pipe, and the impeller is located below the smoke hood.

[0012] Preferably, at least one condenser tube is fixed around the outer wall of the furnace body.

[0013] Preferably, a clamp is fixed on the inner wall of the furnace body, and the clamp is used to position and hold the molten material.

[0014] Preferably, a feeding port is provided on the side wall of the furnace body, and a furnace cover is rotatably connected to the feeding port via a pin.

[0015] Preferably, a support frame is welded to the bottom of the furnace body.

[0016] As a more preferred embodiment, this high-efficiency heat dissipation aluminum ingot production melting furnace, in addition to having an eccentric stirring structure and a smoke exhaust self-cleaning structure, also has at least one condenser tube fixedly attached to the outer wall of the furnace body.

[0017] In a further preferred embodiment, in addition to the above-mentioned combined structure, a clamp is also fixed on the inner wall of the furnace body.

[0018] This utility model has the following beneficial effects: 1. This utility model solves the problem of uneven heating and low melting efficiency of aluminum liquid caused by poor stirring effect in the prior art by setting an eccentric wheel to drive the stirring paddle, so that the stirring paddle can perform asymmetrical and non-uniform stirring in the furnace. It achieves the technical effect of strengthening the disturbance of aluminum liquid, promoting uniform heat transfer, and significantly improving melting efficiency and aluminum liquid quality.

[0019] This invention solves the problem in the prior art where the exhaust duct is easily blocked by ash accumulation, affecting smoke exhaust and requiring manual cleaning during shutdown, by setting a self-cleaning structure inside the exhaust duct that is driven by the flow of flue gas to rotate the cleaning plate. This achieves the technical effect of automatically cleaning the flue using waste heat kinetic energy, ensuring smooth smoke exhaust, and improving the stability of equipment operation.

[0020] This invention solves the problem in the prior art where the furnace body, lacking active and efficient heat dissipation measures, is prone to structural aging, deformation, and shortened service life due to long-term operation at high temperatures. By fixing condenser pipes around the outer wall of the furnace body and circulating coolant during operation, this invention achieves the technical effect of effectively controlling furnace wall temperature, preventing structural damage, and ensuring long-term safe and stable operation of the equipment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a high-efficiency heat dissipation type aluminum ingot production melting furnace proposed in this utility model; Figure 2 This is a schematic diagram of the furnace body of a high-efficiency heat dissipation aluminum ingot production melting furnace proposed in this utility model; Figure 3 This is a schematic diagram of the exhaust stack of a high-efficiency heat-dissipating aluminum ingot production melting furnace proposed in this utility model; Figure 4 This is a schematic diagram of the support frame for a high-efficiency heat dissipation aluminum ingot production melting furnace proposed in this utility model.

[0022] Legend: 1. Furnace body; 2. Top cover; 3. Motor base; 4. Motor; 5. Shaft; 6. Eccentric wheel; 7. Stirring paddle; 8. Exhaust pipe; 9. Fume hood; 10. Fan wheel; 11. Connecting pin; 12. Cleaning plate; 13. Condenser pipe; 14. Support frame; 15. Flame gun; 16. Clamping seat; 17. Furnace cover. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] Example: Please refer to Figures 1 to 4 This utility model provides a high-efficiency heat dissipation aluminum ingot production melting furnace, which aims to solve the problems in the prior art that lead to low melting efficiency due to uneven stirring of aluminum liquid, poor smoke exhaust, and easy damage to the furnace body 1 due to overheating.

[0025] like Figure 1 and Figure 4As shown, the high-efficiency heat dissipation aluminum ingot production melting furnace includes a furnace body 1 and a structure with a welded support frame 14. The furnace body 1 is used to contain and melt aluminum raw materials, and the support frame 14 is fixedly connected to the bottom of the furnace body 1 to provide stable support for the furnace body 1 and ensure the structural stability of the equipment during operation.

[0026] like Figure 1 and Figure 2 As shown, the top opening of the furnace body 1 is sealed with a top cover 2. The top cover 2 is used to seal the furnace body 1 and reduce internal heat loss. A motor base 3 is fixedly connected to the top of the top cover 2, and a motor 4 is mounted and fixed on the motor base 3. The motor 4 serves as the power source for the entire stirring mechanism. The drive end of the rotating shaft 5 passes through the motor base 3 and is driven by the output end of the motor 4. The free end of the rotating shaft 5 rotates through the top cover 2 and extends vertically downward into the interior of the furnace body 1 to transmit the rotational power of the motor 4 into the furnace. The rotating shaft 5 is located inside the furnace body 1. An eccentric wheel 6 is fixedly connected to the free end. The center of gravity of the eccentric wheel 6 is offset from the central axis of the rotating shaft 5. An agitator 7 is eccentrically fixed on the side of the eccentric wheel 6 away from the rotating shaft 5. When the motor 4 drives the rotating shaft 5 to rotate, the eccentric wheel 6 rotates synchronously. Through its eccentric structure, it drives the agitator 7 to carry out asymmetrical and irregular stirring motion in the aluminum liquid in the furnace body 1, thereby greatly enhancing the turbulence effect of the aluminum liquid, promoting uniform heat transfer, avoiding local overheating, and effectively improving the melting efficiency of aluminum raw materials and the quality of aluminum liquid.

[0027] To solve the above-mentioned technical problems, the technical solution of this embodiment also includes a smoke exhaust and self-cleaning structure, and the smoke exhaust and self-cleaning structure forms a fixed communication relationship with the aforementioned top cover 2.

[0028] Please refer to the following carefully. Figure 1 and Figure 3 The structure will be described in detail below: A hollow exhaust pipe 8 is fixedly connected to the top of the top cover 2. The internal channel of the exhaust pipe 8 is connected to the internal space of the furnace body 1. A connecting pin 11 is rotatably installed inside the exhaust pipe 8. A fan wheel 10 is fixedly connected to the upper end of the connecting pin 11. The fan wheel 10 is composed of multiple blades and is used to receive the kinetic energy generated by the flow of flue gas. A cleaning plate 12 is fixedly connected to the outer periphery of the connecting pin 11. The outer edge of the cleaning plate 12 elastically abuts against the inner wall of the exhaust pipe 8. When the flue gas is discharged upward from the furnace body 1 through the exhaust pipe 8, the flowing flue gas drives the fan wheel 10 to rotate. The fan wheel 10 drives the cleaning plate 12 to rotate synchronously through the connecting pin 11. The rotating cleaning plate 12 continuously scrapes and cleans the inner wall of the exhaust pipe 8, which is adapted to its shape. A smoke hood 9 is also fixedly connected to the top opening of the exhaust pipe 8. The smoke hood 9 is an upward-opening trumpet-shaped structure, and the fan wheel 10 is located below the smoke hood 9 to collect and guide the discharged flue gas.

[0029] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, in order to achieve efficient heat dissipation from the furnace body 1, please refer to... Figure 1 and Figure 2 At least one condenser pipe 13 is fixed around the outer wall of the furnace body 1. The condenser pipe 13 is a hollow pipe that is tightly attached to the outer surface of the furnace body 1 and spirally wound around it in the circumference. It is fixed by means of clamps or welding.

[0030] As another preferred embodiment, for heating the interior of furnace body 1, please refer to... Figure 2 A clamp 16 is fixed on the inner wall of the furnace body 1. The clamp 16 is used to position and hold the molten material to ensure that the flame of the torch 15 can stably heat the aluminum raw material in the furnace.

[0031] As another preferred embodiment, for ease of adding materials, please refer to... Figure 1 A feeding port is provided on the side wall of the furnace body 1. A furnace cover 17 is rotatably connected to the feeding port by a pin. The furnace cover 17 is used to close the feeding port during non-feeding periods.

[0032] As another preferred embodiment, in order to ensure the stability of the overall structure, a support frame 14 is fixedly connected to the bottom of the furnace body 1 by welding.

[0033] The working principle of this high-efficiency heat dissipation aluminum ingot production melting furnace is as follows: First, aluminum raw material is placed into the furnace body 1 through the feeding port opened by the furnace cover 17. The ignition gun 15 fixed on the clamp 16 is started to heat and melt the aluminum raw material. During the melting process, the motor 4 installed and fixed on the motor base 3 is started. The motor 4 drives the rotating shaft 5 to rotate through the drive connection. The rotating shaft 5 drives the eccentric wheel 6 fixed at its bottom to rotate synchronously. Since the stirring paddle 7 is eccentrically fixed on the eccentric wheel 6, the stirring paddle 7 performs non-uniform and asymmetrical stirring in the aluminum liquid inside the furnace body 1, thereby forming strong disturbance, which promotes uniform heating in all areas of the aluminum liquid and significantly improves the melting efficiency. The entire process is sealed and covered by the top cover 2, and the support frame 14 provides stable support for the overall structure.

[0034] During the heating process, the flue gas generated by combustion flows upward into the exhaust pipe 8, which is fixedly connected to the top cover 2. The flow of flue gas impacts the impeller 10, causing it to rotate. The impeller 10 drives the cleaning plate 12 to rotate synchronously through the connecting pin 11. The outer edge of the cleaning plate 12 continuously scrapes and cleans the inner wall of the exhaust pipe 8 to prevent soot from accumulating and blocking the channel. Finally, the flue gas is guided out by the fume hood 9.

[0035] Meanwhile, to prevent the furnace body 1 from being damaged due to prolonged high-temperature operation, coolant is introduced into the condenser pipe 13 that is fixed around the outer wall of the furnace body 1. During the circulation process, the coolant continuously absorbs and carries away the heat from the outer wall of the furnace body 1, thereby achieving active heat dissipation of the furnace body 1 and ensuring the structural safety and long service life of the equipment.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A high-efficiency heat-dissipating aluminum ingot production melting furnace, comprising: Furnace body (1); A top cover (2) that seals over the top opening of the furnace body (1); The motor mount (3) on the top of the top cover (2), and the motor (4) mounted and fixed on the motor mount (3); The rotating shaft (5) has its driving end passing through the motor base (3) and connected to the output end of the motor (4). The free end of the rotating shaft (5) is rotatably inserted through the top cover (2) and extends into the interior of the furnace body (1). The feature is that an eccentric wheel (6) is fixedly connected to the free end of the rotating shaft (5) located inside the furnace body (1), and an agitator (7) is eccentrically fixed to the side of the eccentric wheel (6) away from the rotating shaft (5).

2. The high-efficiency heat radiation type aluminum ingot production melting furnace according to claim 1, characterized by The top of the top cover (2) is also fixedly connected to a hollow exhaust pipe (8). A connecting pin (11) is rotatably provided inside the exhaust pipe (8). A fan wheel (10) is fixedly connected to the upper end of the connecting pin (11). A cleaning plate (12) is fixedly connected to the outer periphery of the connecting pin (11). The outer edge of the cleaning plate (12) elastically abuts against the inner wall of the exhaust pipe (8).

3. The high-efficiency heat-dissipating aluminum ingot production melting furnace according to claim 2, characterized in that, The top opening of the exhaust pipe (8) is also fixedly connected to a smoke hood (9), and the impeller (10) is located below the smoke hood (9).

4. The high-efficiency heat-dissipating aluminum ingot production melting furnace according to claim 1, characterized in that, At least one condenser tube (13) is fixed around the outer wall of the furnace body (1).

5. The high-efficiency heat-dissipating aluminum ingot production melting furnace according to claim 1, characterized in that, A clamp (16) is fixed on the inner wall of the furnace body (1), and the clamp (16) is used to position and clamp the molten material.

6. The high-efficiency heat-dissipating aluminum ingot production melting furnace according to claim 1, characterized in that, A feeding port is provided on the side wall of the furnace body (1), and a furnace cover (17) is rotatably connected to the feeding port by a pin.

7. The high-efficiency heat-dissipating aluminum ingot production melting furnace according to claim 1, characterized in that, The bottom of the furnace body (1) is welded with a support frame (14).

8. The high-efficiency heat-dissipating aluminum ingot production melting furnace according to claim 2, characterized in that, The outer wall of the furnace body (1) is also surrounded and fixed with at least one condenser tube (13).

9. The high-efficiency heat-dissipating aluminum ingot production melting furnace according to claim 8, characterized in that, The inner wall of the furnace body (1) is also fixed with a clamp (16), and a fire gun (15) is fixedly connected to the top of the clamp (16).

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