Heating temperature control device for aluminum alloy smelting furnace
By introducing multiple sets of annular heating elements, cooling circulation mechanisms and stirring components into the aluminum alloy smelting equipment, combined with the heat reflected by ceramic fiberboard, the problem of insufficient temperature control accuracy is solved, the temperature stability and uniformity of the aluminum alloy smelting process is achieved, and the smelting efficiency and product quality are improved.
Patent Information
- Application Number
- CN202422540058.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The existing aluminum alloy smelting equipment has insufficient temperature control accuracy under harsh environmental conditions, resulting in intensified oxidation reaction, increased impurity precipitation and segregation of alloy components, affecting production efficiency and product quality.
Multiple sets of annular heating elements, cooling circulation mechanisms and temperature measuring probes are used to achieve precise control and uniform heating of temperature, reflect heat through ceramic fiberboards, reduce energy waste, combine with agitating components to ensure uniformity of melt, and use telescopic cylinders to improve operation convenience and safety.
The temperature stability and uniformity of the aluminum alloy smelting process are achieved, local overheating points are reduced, smelting efficiency and product quality are improved, and energy consumption and raw material consumption are reduced.
Smart Images
Figure CN223243283U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of aluminum alloy smelting equipment, and in particular to a heating temperature control device for an aluminum alloy smelting furnace. Background Art
[0002] Aluminum alloy, an indispensable foundational material for modern industry, is widely used in aerospace, automotive, and other fields. The smelting process is not only an essential component of aluminum production but also a key step in determining the quality and performance of the finished product.
[0003] Traditional equipment used in aluminum alloy smelting operations today primarily consists of two categories: resistance-type heating furnaces and electromagnetic induction-type heating furnaces. The former utilizes electrically driven metal wires or carbon rods to conduct heat into the molten material. While this approach offers advantages in terms of simplicity and ease of maintenance, its disadvantages include difficulty controlling heat diffusion and the potential for localized overheating. The latter relies on high-frequency alternating current acting on the surface of the object being processed to induce eddy currents, achieving uniform heating. While this theoretically achieves more consistent heating and contributes to energy conservation and environmental protection, its widespread adoption is hindered by significant costs and limitations on the workpiece's dimensions. While both approaches have their merits, practically speaking, they often suffer from insufficient temperature control precision under harsh environmental conditions.
[0004] In actual operation, these traditional melting technologies often suffer from insufficient temperature control precision under harsh environmental conditions. This is particularly true during continuous batch production. Unexpected temperature fluctuations can lead to undesirable conditions such as intensified oxidation reactions, increased impurity precipitation, and even alloy component segregation. This makes it difficult to simultaneously maintain rapid heating rates and rigorous temperature zone management. These issues ultimately restrict overall production line output and increase raw material consumption. Utility Model Content
[0005] In order to improve the smelting efficiency and the quality of aluminum alloy liquid, the present application provides a heating temperature control device for an aluminum alloy smelting furnace.
[0006] The present application provides a heating temperature control device for an aluminum alloy smelting furnace adopts the following technical solution:
[0007] A heating temperature control device for an aluminum alloy smelting furnace comprises a support frame and a control panel arranged on one side of the support frame, a furnace body is rotatably arranged on the support frame, a furnace nozzle for pouring aluminum alloy melt is arranged on the top side wall of the furnace body, a temperature sensor is embedded on the inner wall of the furnace body, a plurality of groups of annular heating elements are arranged on the inner side wall of the furnace body along the height direction of the furnace body, and a cooling circulation mechanism is provided on the outer sleeve of the furnace body, a furnace cover is arranged to be raised and lowered on the furnace body, a mounting rod is arranged on the bottom wall of the furnace cover along its own center line, and a temperature measuring probe for detecting the aluminum alloy melt in the furnace is installed on the bottom end of the mounting rod, and the temperature sensor, heating element, cooling circulation mechanism and temperature measuring probe are all electrically connected to the control panel.
[0008] With this technical solution, before melting begins, the cooling water circulation system is first activated to pre-cool the furnace. Then, according to a preset program on the control panel, the power supply to the heating elements is gradually increased until the target temperature is reached. During this time, a temperature probe continuously monitors the actual temperature inside the furnace and sends a signal to the control panel, which automatically adjusts the heating power to maintain the optimal temperature range throughout the melting process. Furthermore, the multiple ring-shaped heating elements significantly reduce the likelihood of localized hot spots within the furnace, ensuring more uniform heating of the aluminum alloy material. The cooling water circulation system removes initial heat from the furnace during the pre-cooling phase, reducing energy waste during the heating process and ensuring a steady temperature increase. This steady temperature increase helps maintain a stable melt state, preventing changes in melt composition or melting defects caused by temperature fluctuations, thereby improving the quality of the smelted product.
[0009] Optionally, a ceramic fiber board is provided on the inner wall of the furnace body, and the ceramic fiber board is provided to avoid the heating element.
[0010] By adopting this technical solution, ceramic fiberboard, introduced as a reflective material into the furnace, can reflect heat generated by the heating element back into the furnace, improving thermal energy utilization and reducing heat loss to the external environment. Furthermore, the ceramic fiberboard and the heating element do not interfere with each other, avoiding direct contact that could cause the highly reflective material to fail due to overheating.
[0011] Optionally, the cooling circulation mechanism includes an insulating sleeve mounted on the outer wall of the furnace body, a cooling coil arranged on the insulating sleeve facing the side wall of the furnace body, and a cooling element inserted in series on the cooling coil, and the cooling coil is arranged in close contact with the outer wall of the furnace body.
[0012] By adopting the above technical solution, the cooling circulation mechanism can effectively improve the cooling efficiency through the cooperation of the insulation sleeve, cooling coil and cooling element under the control of the control panel, realize the precise control of the furnace temperature, avoid the adverse reactions caused by excessively high temperature of the aluminum alloy melt during the smelting process, and thus improve the smelting quality and efficiency.
[0013] Optionally, a stirring assembly is provided in the furnace body, and the stirring assembly includes a plurality of stirring rods arranged on the bottom wall of the furnace cover and rotating parallel to the mounting rod, and a driving member driving the plurality of stirring rods to rotate synchronously, and the plurality of stirring rods are distributed around the mounting rod.
[0014] By adopting the above technical solution, the stirring assembly ensures that the aluminum alloy melt is fully stirred during the smelting process, thereby promoting uniform temperature distribution within the melt, effectively reducing the adverse effects of temperature gradients, and improving smelting efficiency and aluminum alloy melt quality. Multiple stirring rods are distributed around the mounting rod to ensure uniform and comprehensive stirring, further enhancing the stirring effect.
[0015] Optionally, the driving member includes a driving gear rotatably arranged on the top wall of the furnace cover, a driven gear sleeved on the end of the stirring rod extending out of the top wall of the furnace cover, and a rotating motor that drives the driving gear to rotate, the rotating shaft of the driving gear is coaxially arranged with the mounting rod, and each of the driven gears is meshed with the driving gear.
[0016] By adopting the above technical solution, a driving wheel is used to drive several meshing driven gears to rotate synchronously, thereby improving the stability of sufficient stirring of the aluminum alloy melt during the smelting process, reducing the cost of the driving equipment for independently driving each stirring rod to rotate, and improving the temperature uniformity and consistency of the alloy composition during the smelting process.
[0017] Optionally, each stirring rod is provided with a plurality of stirring blades along its axial distribution ring, and the stirring blades on two adjacent stirring rods are staggered.
[0018] By adopting the above technical solution, multiple stirring rods are provided with a number of stirring blades along their axial distribution rings, and the stirring blades on two adjacent stirring rods are staggered, reducing the possibility of collision between them during the stirring process, so that the aluminum alloy melt can be more fully and evenly mixed during the stirring process, effectively avoiding problems such as intensified oxidation reaction and increased impurity precipitation caused by local overheating, thereby improving the overall quality and melting efficiency of the aluminum alloy melt.
[0019] Optionally, rotating rods are coaxially arranged on both sides of the furnace body, and the ends of the rotating rods facing away from the furnace body are rotatably arranged on a support frame, and a brake motor for driving the rotating rods to rotate is arranged on the support frame, and the furnace nozzle is located on the rotating inclined side wall of the furnace body.
[0020] By adopting the above technical solution, rotating rods are provided on both sides of the furnace body, and the rotating rods are driven to rotate by the brake motor, thereby achieving stable tilting of the furnace body, facilitating the flow of fully mixed aluminum alloy melt from the furnace nozzle, and improving liquid discharge efficiency and safety.
[0021] Optionally, a telescopic cylinder is provided on the side of the outer wall of the furnace body facing away from the furnace nozzle, and a support plate is fixedly provided on the side wall of the furnace body, the furnace cover and the telescopic cylinder on the same side, the two support plates are arranged parallel to each other, the telescopic cylinder is located between the two support plates, the bottom wall of the cylinder body of the telescopic cylinder is arranged on the support plate on one side of the furnace body, and the top end of the piston rod of the telescopic cylinder is arranged on the support plate on one side of the furnace cover.
[0022] By adopting the above technical solution, the setting of the telescopic cylinder can achieve precise opening and closing control between the furnace body and the furnace cover, which helps to improve the sealing of the furnace body during the smelting process and facilitates the rapid opening of the furnace cover for operation when needed, thereby improving the operational convenience and safety of the entire device.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. Before smelting begins, first start the cooling water circulation system to pre-cool the furnace body, and then gradually increase the power supply intensity of the heating elements according to the preset program on the control panel until the target temperature inside the furnace body is reached. During this period, the temperature probe continuously detects the actual temperature in the furnace and sends a signal to the control panel, which automatically adjusts the heating power after calculation to keep the entire smelting process within the optimal temperature range. In addition, multiple groups of ring-shaped heating elements can significantly reduce the possibility of local hot spots in the furnace, making the aluminum alloy material heated more evenly. The cooling water circulation system can take away the initial heat of the furnace body during the pre-cooling stage, reduce energy waste during the heating process, and make the temperature rise steadily. The steady rise in temperature helps to maintain the stability of the melt, avoid changes in the melt composition or smelting defects caused by temperature fluctuations, and thus improve the quality of the smelted product;
[0025] 2. Ceramic fiberboard is introduced into the furnace as a reflective material to reflect the heat generated by the heating element back into the furnace, improving the utilization rate of thermal energy and reducing heat loss to the external environment. In addition, the ceramic fiberboard and the heating element do not interfere with each other, avoiding the possibility of failure of the highly reflective material due to overheating caused by direct contact;
[0026] 3. The cooling circulation mechanism, through the cooperation of the thermal insulation sleeve, cooling coil and cooling elements, can effectively improve the cooling efficiency under the control of the control panel, realize the precise control of the furnace temperature, avoid the adverse reactions caused by excessively high temperature of the aluminum alloy melt during the smelting process, and thus improve the smelting quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0028] Figure 2It is a cross-sectional view showing the internal structure of the furnace body in the embodiment of the present application.
[0029] Description of reference numerals:
[0030] 1. Support frame; 2. Control panel; 3. Furnace body; 31. Furnace nozzle; 32. Telescopic cylinder; 33. Support plate; 34. Ceramic fiber board; 4. Rotating assembly; 41. Rotating rod; 42. Brake motor; 5. Temperature sensor; 6. Heating element; 7. Cooling circulation mechanism; 71. Insulation sleeve; 72. Cooling coil; 73. Cooling element; 8. Furnace cover; 81. Temperature probe; 82. Mounting rod; 9. Stirring assembly; 91. Stirring rod; 911. Stirring blade; 92. Driving part; 921. Driving gear; 922. Driven gear; 923. Rotating motor. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1-2 This application is described in further detail.
[0032] The embodiment of the present application discloses a heating temperature control device for an aluminum alloy smelting furnace.
[0033] Reference Figure 1 and Figure 2 A heating and temperature control device for an aluminum alloy melting furnace includes a support frame 1, a control panel 2 fixedly mounted on one side of the support frame 1, a furnace body 3 rotatably mounted on the support frame 1, and a rotating assembly 4 mounted on the support frame 1. A furnace nozzle 31 is mounted on the top sidewall of the furnace body 3, and a temperature sensor 5 is embedded on the inner wall of the furnace body 3. Multiple groups of annular heating elements 6 are fixedly mounted on the inner sidewall of the furnace body 3 along the height direction of the furnace body 3, and a cooling circulation mechanism 7 is provided on the exterior of the furnace body 3. A furnace cover 8 is mounted on the furnace body 3 in a lifting manner, and a temperature probe 81 and a stirring assembly 9 for measuring and stirring the aluminum alloy melt inside the furnace body 3 are mounted on the furnace cover 8.
[0034] Reference Figure 1 and Figure 2 Before smelting begins, the cooling water circulation system is activated to pre-cool furnace body 3 under the monitoring of temperature sensor 5. Then, the power supply to heating element 6 is gradually increased according to the preset program on control panel 2 until the target temperature inside furnace body 3 is reached. During this time, stirring assembly 9 continuously stirs the aluminum alloy melt inside furnace body 3. Simultaneously, temperature probe 81 continuously monitors the actual temperature inside the furnace and sends a signal to control panel 2. After calculation, control panel 2 automatically adjusts the heating power to ensure that the entire smelting process remains within the optimal temperature range.
[0035] Reference Figure 2 The heating element 6 can be a resistance wire, an infrared heater or other types of electric heating elements 6. The heating element 6 in this embodiment uses a resistance wire wrapped in a well-insulated heat-conducting plastic tube.
[0036] Reference Figure 2 The cooling circulation mechanism 7 includes an insulating sleeve 71, a cooling coil 72, and a cooling element 73. The insulating sleeve 71 is fixedly mounted on the outer wall of the furnace body 3, the cooling coil 72 is fixedly mounted on the side of the insulating sleeve 71 facing the furnace body 3, and the cooling element 73 is fixedly connected to the cooling coil 72, so that the cooling coil 72 is closely positioned against the outer wall of the furnace body 3. In this embodiment, the cooling coil 72 is cooled by circulating water. The operating power of the cooling element 73 is matched to the actual heating value of the furnace body 3. The cooling element 73 uses a circulating refrigeration pump to provide the required cooling energy, thereby ensuring the effective operation of the cooling system.
[0037] Reference Figure 1 The rotating assembly 4 includes a rotating rod 41 and a brake motor 42. The rotating rod 41 is coaxially fixed on the side walls of the furnace body 3 on both sides of the furnace body 3 in an axially symmetrical manner with the furnace nozzle 31 as the center line. The end of the rotating rod 41 facing away from the furnace body 3 is rotatably set on the support frame 1, and the brake motor 42 is fixed on the side of the support frame 1 facing away from the furnace body 3, and is rotatably passed through the support frame 1 and coaxially fixedly connected with one of the rotating rods 41.
[0038] Reference Figure 1 A telescopic cylinder 32 is provided on the side of the outer wall of the furnace body 3 away from the furnace nozzle 31, and a support plate 33 is fixedly provided on the side wall of the furnace body 3 and the furnace cover 8 on the same side of the telescopic cylinder 32. The two support plates 33 are arranged parallel to each other, and the telescopic cylinder 32 is located between the two support plates 33. The bottom wall of the telescopic cylinder 32 is fixedly provided on the support plate 33 on one side of the furnace body 3, and the top end of the piston rod of the telescopic cylinder 32 is fixedly provided on the support plate 33 on one side of the furnace cover 8.
[0039] Reference Figure 2 A mounting rod 82 is fixedly mounted on the bottom wall of the furnace cover 8 along its centerline, and a temperature probe 81 is mounted on the bottom end of the mounting rod 82. The stirring assembly 9 includes a plurality of stirring rods 91 and a driving member 92. In this embodiment, four stirring rods 91 are used as an example. The four stirring rods 91 are distributed around the mounting rod 82, and each stirring rod 91 is rotatably mounted on the bottom wall of the furnace cover 8 parallel to the mounting rod 82. Each stirring rod 91 is fixedly disposed along its axial direction with a plurality of stirring blades 911, and the stirring blades 911 on adjacent stirring rods 91 are staggered.
[0040] Reference Figure 2The driving member 92 includes a driving gear 921, a driven gear 922 and a rotating motor 923. The rotating motor 923 is fixedly arranged on the top wall of the furnace cover 8, and the axial direction of its output shaft is coaxially arranged with the length direction of the mounting rod 82. The driving gear 921 is fixedly sleeved on the output shaft of the rotating motor 923. The four driven gears 922 are fixedly sleeved on the end of the corresponding stirring rod 91 extending from the top wall of the furnace cover 8, and each driven gear 922 is meshed with the driving gear 921.
[0041] Reference Figure 2 In order to further improve the utilization rate of heat energy in the furnace, a ceramic fiber board 34 is fixedly installed on the inner wall of the furnace body 3. The ceramic fiber board 34 avoids the heating element 6 and is alternately arranged with the heating element 6, and a certain gap is left between the ceramic fiber board 34 and the heating element 6.
[0042] Reference Figure 1 and Figure 2 The temperature sensor 5 , the temperature probe 81 , the heating element 6 , the cooling element 73 , the brake motor 42 , the telescopic cylinder 32 and the rotating motor 923 are all electrically connected to the control panel 2 .
[0043] The implementation principle of the heating temperature control device for an aluminum alloy melting furnace in the embodiment of the present application is as follows: before melting begins, under the monitoring of the temperature sensor 5, the cooling water circulation system is first activated to pre-cool the furnace body 3. Then, according to the preset program on the control panel 2, the power supply intensity of the heating element 6 is gradually increased until the target temperature inside the furnace body 3 is reached. During this period, the control panel 2 controls the operation of the rotary motor 923, thereby driving the driving gear 921 to rotate. The rotation of the driving gear 921 drives the stirring rod 91 meshed with it to rotate synchronously, thereby continuously stirring the aluminum alloy melt inside the furnace body 3. At the same time, the temperature probe 81 continuously detects the actual temperature in the furnace and sends a signal to the control panel 2. The control panel 2 automatically adjusts the heating power after calculation to ensure that the entire melting process is always maintained within the optimal temperature range.
[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A heating temperature control device for an aluminum alloy melting furnace, characterized in that , comprising a support frame (1) and a control panel (2) arranged on one side of the support frame (1), a furnace body (3) is rotatably arranged on the support frame (1), a furnace nozzle (31) for pouring aluminum alloy melt is arranged on the top side wall of the furnace body (3), a temperature sensor (5) is embedded on the inner wall of the furnace body (3), multiple groups of annular heating elements (6) are arranged on the inner side wall of the furnace body (3) along the height direction of the furnace body (3), and a cooling circulation mechanism (7) is provided on the outer sleeve of the furnace body (3), a furnace cover (8) is arranged on the furnace body (3) for lifting, a mounting rod (82) is arranged on the bottom wall of the furnace cover (8) along its own center line, and a temperature probe (81) for detecting the aluminum alloy melt in the furnace is installed on the bottom end of the mounting rod (82), and the temperature sensor (5), heating element (6), cooling circulation mechanism (7) and temperature probe (81) are all electrically connected to the control panel (2).
2. The heating temperature control device for an aluminum alloy melting furnace according to claim 1, characterized in that A ceramic fiber board (34) is provided on the inner wall of the furnace body (3), and the ceramic fiber board (34) is provided to avoid the heating element (6).
3. The heating temperature control device for an aluminum alloy melting furnace according to claim 1, characterized in that The cooling circulation mechanism (7) comprises a heat-insulating sleeve (71) sleeved on the outer wall of the furnace body (3), a cooling coil (72) arranged on the side wall of the heat-insulating sleeve (71) facing the furnace body (3), and a cooling element (73) inserted in series on the cooling coil (72), wherein the cooling coil (72) is arranged in close contact with the outer wall of the furnace body (3).
4. The heating temperature control device for an aluminum alloy melting furnace according to claim 1, characterized in that A stirring assembly (9) is provided in the furnace body (3), and the stirring assembly (9) includes a plurality of stirring rods (91) arranged on the bottom wall of the furnace cover (8) and rotating parallel to the mounting rod (82), and a driving member (92) driving the plurality of stirring rods (91) to rotate synchronously, and the plurality of stirring rods (91) are distributed around the mounting rod (82).
5. The heating temperature control device for an aluminum alloy melting furnace according to claim 4, characterized in that The driving member (92) includes a driving gear (921) rotatably mounted on the top wall of the furnace cover (8), a driven gear (922) sleeved on the end of the stirring rod (91) extending out of the top wall of the furnace cover (8), and a rotating motor (923) for driving the driving gear (921) to rotate. The rotating shaft of the driving gear (921) is coaxially arranged with the mounting rod (82), and each of the driven gears (922) is meshed with the driving gear (921).
6. The heating temperature control device for an aluminum alloy melting furnace according to claim 4, characterized in that Each stirring rod (91) is provided with a plurality of stirring blades (911) along its axial distribution ring, and the stirring blades (911) on two adjacent stirring rods (91) are staggered.
7. The heating temperature control device for an aluminum alloy melting furnace according to claim 1, characterized in that Rotating rods (41) are coaxially arranged on both sides of the furnace body (3), and the ends of the rotating rods (41) facing away from the furnace body (3) are rotatably arranged on the support frame (1), and a brake motor (42) for driving the rotating rods (41) to rotate is arranged on the support frame (1), and the furnace nozzle (31) is located on the side wall of the furnace body (3) that rotates and tilts.
8. The heating temperature control device for an aluminum alloy melting furnace according to claim 7, characterized in that A telescopic cylinder (32) is provided on the side of the outer wall of the furnace body (3) away from the furnace nozzle (31), and a support plate (33) is fixedly provided on the side wall of the furnace body (3), the furnace cover (8) and the telescopic cylinder (32) on the same side. The two support plates (33) are arranged in parallel. The telescopic cylinder (32) is located between the two support plates (33). The bottom wall of the cylinder body of the telescopic cylinder (32) is arranged on the support plate (33) on one side of the furnace body (3), and the top end of the piston rod of the telescopic cylinder (32) is arranged on the support plate (33) on one side of the furnace cover (8).