Dynamic balance type fuel gas aluminum alloy holding furnace

Abstract

The invention relates to the technical field of industrial equipment, in particular to a dynamic balance type fuel gas aluminum alloy holding furnace which comprises a furnace body and further comprises a cover plate, the outer wall of the top end of the cover plate is fixedly connected with an inert gas injection port, and the outer wall of the top end of the cover plate is fixedly connected with a semiconductor gas sensor. A silicon carbide energy storage module is fixedly connected to the inner wall of the furnace body, a motor A is fixedly connected to the inner wall of the bottom end of the furnace body, a base is fixedly connected to an output shaft of the motor A, a combustion module is fixedly connected to the outer wall of the base, and a bottom plate is fixedly connected to the inner wall of the furnace body. Through the arrangement of the combustion module, the semiconductor gas sensor and the like, the furnace temperature uniformity can be improved through rotation of the combustion module, the multiple silicon carbide energy storage modules can stably compress temperature fluctuation, the leakage response speed can be increased through a triple safety protection system, the emergency gas consumption is reduced, and the inert gas cost is saved.

Description

Technical Field

[0001] This application relates to the field of industrial equipment technology, and in particular to a dynamic balance gas-fired aluminum alloy holding furnace. Background Technology

[0002] Aluminum molten metal holding furnace is an industrial thermal equipment specifically designed for heat preservation after aluminum alloy melting. It is mainly used to ensure that aluminum molten metal maintains good fluidity and chemical composition stability before subsequent processes such as aluminum casting and processing, while reducing heat loss and oxidation loss. It provides constant-temperature and qualified aluminum molten metal raw materials for continuous production and is widely used in aluminum product production processes in aluminum processing, automobile manufacturing, aerospace and other fields.

[0003] In the field of continuous aluminum alloy casting, temperature control of the melt holding furnace is crucial to the quality of the cast billet and production efficiency. Traditional holding furnaces use fixed burners for heating, which have large thermal inertia and slow temperature response, making it difficult to meet the requirements of ±5℃ for melt temperature uniformity in fields such as aerospace and automotive lightweighting. Although regenerative combustion technology improves thermal efficiency, it has not solved the problems of local overheating and slow emergency response.

[0004] In some existing technologies, although the single-point high-speed gas burner combined with PID control has a simple structure, the temperature uniformity is only ±15℃; although multi-burner zone control improves the uniformity, it makes the control system more complex and increases energy consumption by 20%; the external electric auxiliary heating compensation system can respond quickly to temperature fluctuations, but the operating cost is high; at the same time, gas leakage protection relies on mechanical shut-off valves and a single alarm system, which makes it difficult to quickly deal with sudden leaks. In addition, existing technologies also have defects such as furnace temperature gradient leading to local overheating and coking of aluminum liquid, slow heat charging and releasing rate of heat storage body that cannot match real-time needs, and single response of safety protection system leading to inert gas utilization rate of <40%. Therefore, a dynamic balance gas-fired aluminum alloy holding furnace is proposed to address the above problems. Summary of the Invention

[0005] The purpose of this application is to provide a dynamically balanced gas-fired aluminum alloy heat preservation furnace.

[0006] The dynamic balance gas-fired aluminum alloy holding furnace provided in this application adopts the following technical solution: A dynamic balance gas-fired aluminum alloy heat preservation furnace includes a furnace body and a cover plate. An inert gas injection port is fixedly connected to the top outer wall of the cover plate, and a semiconductor gas sensor is fixedly connected to the top outer wall of the cover plate. A silicon carbide energy storage module is fixedly connected to the inner wall of the furnace body. A motor A is fixedly connected to the bottom inner wall of the furnace body. A base is fixedly connected to the output shaft of the motor A. A combustion module is fixedly connected to the outer wall of the base. A bottom plate is fixedly connected to the inner wall of the furnace body, and a connecting seat is fixedly connected to the outer wall of the furnace body. The inner wall of the furnace body is provided with a sealing mechanism, the cover plate is connected to the sealing mechanism through a connecting mechanism, and the bottom outer wall of the cover plate is provided with a stirring mechanism.

[0007] Preferably, the connecting mechanism includes a connecting block, a pull rod is slidably connected to the inner wall of the connecting block, a protrusion is hinged to the outer wall of the pull rod via a hinge rod, two sets of protrusions are provided, the two sets of protrusions are elastically connected by a connecting spring, a mounting seat is snapped onto the outer wall of the connecting block, and a groove is provided on the inner wall of the mounting seat.

[0008] Preferably, the connecting block is fixedly connected to the outer wall of the cover plate, and the two ends of the hinge rod are respectively hinged to the outer walls of the protrusion and the pull rod, and the protrusion is slidably connected in the inner wall of the connecting block.

[0009] Preferably, the two ends of the connecting spring are fixedly connected to the outer walls of the two sets of protrusions, and the protrusions are engaged with the grooves.

[0010] Preferably, the sealing mechanism includes a cylinder, an air cylinder is fixedly connected to the inner wall of the connecting seat, an air supply pipe is fixedly connected to the outer wall of the air cylinder, an air bag is fixedly connected to the inner wall of the furnace body, a moving rod is slidably connected to the inner wall of the air cylinder, and a pressure plate is fixedly connected to the outer wall of the moving rod.

[0011] Preferably, the cylinder is fixedly connected to the inner wall of the connecting seat, the movable end of the cylinder is fixedly connected to the bottom outer wall of the mounting seat, and the moving rod is fixedly connected to the outer wall of the mounting seat.

[0012] Preferably, the air supply pipe, air cylinder and air bag are connected, the pressure plate is slidably connected to the inner wall of the air cylinder, and the air bag is in contact with the outer wall of the cover plate.

[0013] Preferably, the stirring mechanism includes a motor B, the output shaft of the motor B is fixedly connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a telescopic rod, the movable end of the telescopic rod is fixedly connected to a stirring rod, the outer wall of the rotating rod is slidably connected to a slider, the outer wall of the slider is hinged to a connecting rod, the outer wall of the slider is provided with an arc-shaped groove, and the bottom outer wall of the cover plate is fixedly connected to a guide block.

[0014] Preferably, the motor B is fixedly connected to the top outer wall of the cover plate, and the rotating rod is rotatably connected to the inner wall of the cover plate.

[0015] Preferably, the connecting rod is hinged to the outer wall of the stirring rod, the guide block is in contact with the inner wall of the arc-shaped groove, and the rotating rod penetrates the outer wall of the cover plate.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. This invention, through the setting of a combustion module and a semiconductor gas sensor, etc., can improve the uniformity of furnace temperature by continuously rotating the combustion module, while multiple silicon carbide energy storage modules can stabilize and compress temperature fluctuations. The triple safety protection system can improve the leakage response speed, reduce the consumption of emergency gas, and save the cost of inert gas. 2. By setting up connecting blocks and protrusions, the present invention allows the connecting blocks to be inserted into the mounting base when installing the cover plate. The protrusions and grooves can be engaged to fix the cover plate. When removing the cover plate, the pull rod is pulled to disengage the protrusions from the grooves, allowing the cover plate to be removed for cleaning or maintenance of the furnace body. The installation and disassembly operations are relatively simple. 3. The present invention, through the setting of airbag and air cylinder, when the cover plate is closed by the cylinder, the moving end of the cylinder moves down or drives the moving rod and the pressure plate to move down synchronously. The pressure plate causes the gas in the air cylinder to enter the airbag through the air supply pipe, causing the airbag to expand, thereby sealing the gap between the cover plate and the furnace body and improving the sealing effect. 4. By setting up stirring rods and connecting rods, the present invention enables the slider to move vertically back and forth when the motor B drives the rotating rod and stirring rod to rotate. The connecting rod flips to drive the four sets of stirring rods to move horizontally back and forth, so as to carry out all-round stirring of the center and edge of the aluminum liquid, improve the mixing effect of the aluminum liquid, and avoid local overheating of the aluminum liquid. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic cross-sectional view of the furnace body according to Embodiment 1 of this application; Figure 3 This is a schematic cross-sectional view of the furnace body and connecting seat according to Embodiment 1 of this application; Figure 4 This is an exploded cross-sectional view of the connecting block and mounting base according to Embodiment 1 of this application. Figure 5 This is Embodiment 1 of this application. Figure 4 Enlarged structural diagram of section A; Figure 6 This is a schematic cross-sectional view of the air cylinder according to Embodiment 1 of this application; Figure 7 This is a cross-sectional view of the cover plate and a schematic diagram of the stirring mechanism structure of Embodiment 2 of this application; Figure 8 This is a schematic cross-sectional view of the cover plate in Embodiment 2 of this application; Figure 9 This is a cross-sectional view of the cover plate, slider, and guide block structure of Embodiment 2 of this application.

[0018] Explanation of reference numerals in the attached drawings: 100, furnace body; 102, cover plate; 103, inert gas injection port; 104, semiconductor gas sensor; 105, silicon carbide energy storage module; 106, base; 107, combustion module; 108, motor A; 109, bottom plate; 110, connecting seat; 200, connecting mechanism; 201, connecting block; 202, pull rod; 203, hinge rod; 204, protrusion; 205, connection. 206. Spring; 207. Mounting base; 300. Groove; 301. Sealing mechanism; 302. Cylinder; 303. Air supply pipe; 304. Air bag; 305. Moving rod; 306. Pressure plate; 400. Stirring mechanism; 401. Motor B; 402. Rotating rod; 403. Telescopic rod; 404. Stirring rod; 405. Connecting rod; 406. Slider; 407. Arc groove; 408. Guide block. Detailed Implementation

[0019] The following combination Figures 1 to 9 This application will be described in further detail below.

[0020] Example 1 A dynamic balance gas-fired aluminum alloy heat preservation furnace, with reference to Figures 1 to 2 The furnace body 100 includes: a cover plate 102, an inert gas injection port 103 fixedly connected to the top outer wall of the cover plate 102, a semiconductor gas sensor 104 fixedly connected to the top outer wall of the cover plate 102, a silicon carbide energy storage module 105 fixedly connected to the inner wall of the furnace body 100, a motor A108 fixedly connected to the bottom inner wall of the furnace body 100, a base 106 fixedly connected to the output shaft of the motor A108, a combustion module 107 fixedly connected to the outer wall of the base 106, a bottom plate 109 fixedly connected to the inner wall of the furnace body 100, and a connecting seat 110 fixedly connected to the outer wall of the furnace body 100. The inner wall of the furnace body 100 is provided with a sealing mechanism 300, and the cover plate 102 is connected to the sealing mechanism 300 through a connecting mechanism 200. The bottom outer wall of the cover plate 102 is provided with a stirring mechanism 400.

[0021] The above scheme is adopted as follows: Furnace body 100 is the main body of the holding furnace used to keep the molten aluminum warm during the continuous casting process of aluminum alloy. After the cover plate 102 is opened, the molten aluminum can be poured into furnace body 100, with the molten aluminum positioned above the bottom plate 109. Then, the cover plate 102 is closed to keep the molten aluminum warm. Combustion module 107 includes 36 micro combustion units arranged in a ring matrix. Each unit is mounted on base 106 via a flange. Each combustion unit is equipped with a Venturi premixed gas nozzle and is made of 316L stainless steel. The throat diameter tolerance is ±0.01mm, the air-fuel ratio electronic adjustment accuracy is ±0.5%, and it is also equipped with a zirconia oxygen content sensor to calibrate the combustion efficiency every 5 seconds. The base 106 is driven by a motor A108 to achieve a rotation of 2-10 rpm through a gear transmission module. Eight sets of silicon carbide energy storage modules 105 form a pulse heat storage module. The silicon carbide energy storage modules 105 are embedded at equal angles in the refractory layer of the side wall of the furnace body 100 and are arranged alternately with the electromagnetic induction coil. When the temperature of the aluminum liquid is detected to be lower than the set value, the electromagnetic induction coil is activated quickly. The system rapidly releases stored heat and uses the waste heat from the flue gas to reverse charge the silicon carbide energy storage module 105. Furthermore, the furnace body 100 incorporates a three-tiered gas safety protection system. The first tier utilizes multiple semiconductor gas sensors 104 distributed around the furnace body, with a detection limit of 50 ppm. The second tier employs an FPGA-based parallel signal processing system with a response time of 8 ms; the signal processing box is fixed to the side of the furnace body 100. The third tier features an inert gas injection port 103, enabling dual-path backup with nitrogen and argon. The inert gas injection port 103 penetrates the refractory layer of the cover plate 102, maintaining a stable atmosphere within the furnace body 100 and reducing the impact of temperature fluctuations on the aluminum liquid's properties. This design improves furnace temperature uniformity by 40% through dynamic rotary combustion, reducing it from ±15℃ to ±9℃. The pulse heat storage system compresses temperature fluctuations to ±2℃, exceeding industry standards by 150%. Multiple safety protections increase leak response speed to five times that of traditional systems, reducing it from 500 ms to within 100 ms. Emergency gas consumption is reduced by 30%, saving on inert gas procurement costs.

[0022] like Figure 4 and Figure 5 As shown, the connecting mechanism 200 includes a connecting block 201. A pull rod 202 is slidably connected to the inner wall of the connecting block 201. A protrusion 204 is hinged to the outer wall of the pull rod 202 through a hinge rod 203. Two sets of protrusions 204 are provided. The two sets of protrusions 204 are elastically connected to each other through a connecting spring 205. A mounting seat 206 is snapped onto the outer wall of the connecting block 201. A groove 207 is provided on the inner wall of the mounting seat 206.

[0023] The above scheme employs a two-set connecting mechanism 200, distributed on both sides of the cover plate 102. The cover plate 102 can be connected to the movable end of the cylinder 301 via the connecting mechanism 200. When the cover plate 102 needs to be opened, activating the cylinder 301 inside the connecting seats 110 on both sides will lift the cover plate 102 upwards. When closing the cover plate 102, retracting the movable end of the cylinder 301 will close the cover plate 102 against the top of the furnace body 100. The connecting mechanism 200 allows for convenient and quick opening and closing of the cover plate 102. The cylinder 301 can be removed from its movable end to clean and maintain the interior of the furnace body 100 or the stirring mechanism 400. The operation is relatively simple. The hinge rod 203 is provided with two sets, which correspond to two sets of protrusions 204. Under normal conditions, when the connecting block 201 is inserted into the mounting base 206, the protrusions 204 are ejected to both sides under the elastic force of the connecting spring 205 and engage with the grooves 207 on both sides of the mounting base 206. This fixes the cover plate 102 and the movable end of the cylinder 301, maintaining the connection.

[0024] like Figure 4 and Figure 5 As shown, the connecting block 201 is fixedly connected to the outer wall of the cover plate 102, and the two ends of the hinge rod 203 are respectively hinged to the outer walls of the protrusion 204 and the pull rod 202. The protrusion 204 is slidably connected in the inner wall of the connecting block 201. The two ends of the connecting spring 205 are respectively fixedly connected to the outer walls of the two sets of protrusions 204, and the protrusions 204 are engaged with the grooves 207.

[0025] Using the above scheme: the pull rod 202 penetrates the top outer wall of the connecting block 201. The operator can pull the pull rod 202 upwards, causing the hinge rod 203 and its connected end to move upwards synchronously. The other end of the hinge rod 203 will cause the protrusion 204 to move. Since the protrusion 204 can only move laterally within the inner wall of the connecting block 201, the hinge rod 203 will flip towards the center, causing the corresponding protrusion 204 to move towards the center simultaneously. When the protrusion 204 moves to... After the connecting block 201 is inserted into the inner wall, it can disengage from the groove 207, thus releasing the limiting position of the connecting block 201. The cover plate 102 can then be moved upwards to disengage the connecting block 201 from the mounting base 206 and remove the cover plate 102. Similarly, when installing the cover plate 102, the pull rod 202 is pulled to move the protrusion 204 into the inner wall of the connecting block 201, and then the connecting block 201 is inserted into the mounting base 206 so that the protrusion 204 engages with the groove 207 to complete the installation.

[0026] like Figure 3 , Figure 4 and Figure 6As shown, the sealing mechanism 300 includes a cylinder 301, an air cylinder 302 is fixedly connected to the inner wall of the connecting seat 110, an air supply pipe 303 is fixedly connected to the outer wall of the air cylinder 302, an air bag 304 is fixedly connected to the inner wall of the furnace body 100, a moving rod 305 is slidably connected to the inner wall of the air cylinder 302, and a pressure plate 306 is fixedly connected to the outer wall of the moving rod 305.

[0027] Using the above scheme: the molten aluminum in the holding furnace is at 660-720℃. The airbag 304 can be made into a high-strength and high-heat-resistant sandwich structure by combining metal fiber cloth and high-temperature resistant fiber, which improves the tear resistance and sealing performance of the airbag 304. The ductility of the metal fiber can enhance the fit of the airbag 304 when it expands. After the airbag 304 is inflated, it can fill the annular groove between the cover plate 102 and the inner wall of the furnace body 100, improving the sealing effect of the cover plate 102. This not only strengthens the inert gas protection effect but also reduces heat loss, lowers energy consumption, and prevents external impurities from entering the furnace body 100. 00 Contamination of molten aluminum; When the movable end of cylinder 301 moves downward and closes cover plate 102, it can automatically inflate air into airbag 304 to expand and seal it. When cylinder 301 moves upward and opens cover plate 102, the gas in airbag 304 will return to air cylinder 302, causing airbag 304 to contract, avoiding material fatigue aging and tearing caused by long-term expansion and stretching; When the movable end of cylinder 301 moves, it drives mounting base 206 to move synchronously. Mounting base 206 can drive moving rod 305 to move up and down synchronously. Through moving rod 305 and air cylinder 302, air can be inflated into airbag 304.

[0028] like Figure 3 , Figure 4 and Figure 6 As shown, cylinder 301 is fixedly connected to the inner wall of connecting seat 110, the movable end of cylinder 301 is fixedly connected to the bottom outer wall of mounting seat 206, and moving rod 305 is fixedly connected to the outer wall of mounting seat 206; air supply pipe 303, air cylinder 302 and air bag 304 are connected, pressure plate 306 is slidably connected to the inner wall of air cylinder 302, and air bag 304 is in contact with the outer wall of cover plate 102.

[0029] Using the above solution: when cover 102 is opened, such as Figure 4 As shown, the movable end of cylinder 301 drives the moving rod 305 to rise, and the pressure plate 306 is positioned above the inside of the air cylinder 302. At this time, there is no gas in the air bladder 304, and the gas is inside the air cylinder 302. When the cover plate 102 moves down to close, the movable end of cylinder 301 moves down, driving the moving rod 305 and the pressure plate 306 to move down synchronously. The pressure plate 306 exerts pressure on the air inside the air cylinder 302, squeezing the gas into the air bladder 304. Thus, the air bladder 304 is inflated while the cover plate 102 is closed. When the cover plate 102 is completely closed, as shown... Figure 6As shown, the pressure plate 306 is at the bottom, but its bottom end is still at the upper end of the connection between the air supply pipe 303 and the air cylinder 302. At this time, the gas in the air bag 304 cannot return to the air cylinder 302, so it can maintain the state of inflation and thus ensure the sealing effect. The air bag 304 can be inflated without the operator having to perform additional air pumping, which simplifies the operation process and makes it more convenient to use.

[0030] Example 2 like Figures 7 to 9 As shown, the stirring mechanism 400 includes a motor B401, the output shaft of the motor B401 is fixedly connected to a rotating rod 402, the outer wall of the rotating rod 402 is fixedly connected to a telescopic rod 403, the movable end of the telescopic rod 403 is fixedly connected to a stirring rod 404, the outer wall of the rotating rod 402 is slidably connected to a slider 406, the outer wall of the slider 406 is hinged to a connecting rod 405, the outer wall of the slider 406 is provided with an arc-shaped groove 407, and the bottom outer wall of the cover plate 102 is fixedly connected to a guide block 408.

[0031] The above solution is adopted: the stirring mechanism 400 can stir the aluminum liquid, making it heat more evenly. Combined with the base 106 driving multiple combustion modules 107 to rotate continuously, it can prevent local overheating and coking of the aluminum liquid. The stirring mechanism 400 stirs the aluminum liquid through four sets of stirring rods 404 on the outer wall of the rotating rod 402. The stirring rods 404 can extend outward and then move inward and retract during the stirring process. This repetitive movement can improve the stirring effect of the aluminum liquid, stirring both the center and the periphery of the aluminum liquid, covering the entire range of the aluminum liquid from the center to the edge, ensuring uniform composition of the aluminum liquid and improving performance; the rotating rod 402... During the rotation, the slider 406 moves vertically back and forth on its outer wall. The slider 406 drives the connecting rod 405 to move up and down synchronously at one end. The other end of the connecting rod 405 drives the stirring rod 404 to move. Since the stirring rod 404 is connected to the rotating rod 402 through the telescopic rod 403, the telescopic rod 403 guides the stirring rod 404, so that the stirring rod 404 can only move horizontally in a vertical state. Then, the connecting rod 405 can rotate back and forth, driving the stirring rod 404 to move horizontally back and forth, so as to stir the aluminum liquid in all directions.

[0032] like Figures 7 to 9 As shown, motor B401 is fixedly connected to the top outer wall of cover plate 102, and rotating rod 402 is rotatably connected to the inner wall of cover plate 102; connecting rod 405 is hinged to the outer wall of stirring rod 404, guide block 408 is in contact with the inner wall of arc groove 407, and rotating rod 402 penetrates through the outer wall of cover plate 102.

[0033] The above solution is adopted: the arc-shaped groove 407 on the outer wall of the slider 406 is formed around one circle, with the two ends of the arc-shaped groove 407 located on the upper and lower sides respectively. The output shaft of the motor B401 can drive the rotating rod 402 to rotate. The slider 406 can only move vertically on the outer wall of the rotating rod 402 and cannot rotate independently. Therefore, when the rotating rod 402 rotates, it will drive the slider 406 to rotate synchronously. Since the inner wall of the arc-shaped groove 407 is always in contact with the guide block 408, when the slider 406 rotates, the guide block 408 will... The inner wall of the arc-shaped groove 407 generates a squeezing force, which causes the slider 406 to move vertically on the outer wall of the rotating rod 402. By controlling the output shaft of the motor B401 to rotate forward and backward, the rotating rod 402 can be rotated back and forth, causing the slider 406 to move vertically back and forth, driving the four sets of stirring rods 404 to continuously extend and retract. When the slider 406 rotates to the point where the guide block 408 contacts the bottom end of the arc-shaped groove 407, the four sets of stirring rods 404 are in the retracted state, and the slider 406 moves upward, as if... Figure 8 As shown; conversely, when the guide block 408 contacts the top of the arc groove 407, the slider 406 moves downward and the four sets of stirring rods 404 unfold outward.

[0034] Working principle and usage process of this invention: Before starting, the operator needs to check the lubrication status of the bearing of the base 106 and use high-temperature lithium-based grease. Then, the burner speed is set through the human-machine interface, with an initial value of 5 rpm. Next, the moving end of the control cylinder 301 is moved upward, pulling the lever 202 to retract the protrusion 204, inserting the connecting block 201 into the mounting base 206. After releasing the lever 202, the protrusion 204 is locked into the groove 207 under the action of the connecting spring 205, completing the fixation between the cover plate 102 and the mounting base 206. Then, molten aluminum can be poured into the furnace body 100, and the molten aluminum falls above the bottom plate 109.

[0035] Next, the cylinder 301 is controlled to retract, causing the cover plate 102 to move down to fit against the top of the furnace body 100. During this process, the moving end of the cylinder 301 simultaneously drives the moving rod 305 and the pressure plate 306 to descend, squeezing the gas in the cylinder 302. The gas is then filled into the air bag 304 through the gas supply pipe 303. The air bag 304 expands and fills the gap between the cover plate 102 and the furnace body 100, thus achieving a seal.

[0036] Motor A108 drives base 106 to rotate at 2-10 rpm, driving 36 micro combustion units to rotate and heat. Each combustion unit adjusts the air-fuel ratio through a Venturi premixed nozzle, and the combustion efficiency is calibrated every 5 seconds by a zirconia oxygen content sensor. At the same time, 8 sets of silicon carbide energy storage modules 105 on the inner wall of furnace body 100 monitor the temperature of aluminum liquid. If the temperature is lower than the set value, the electromagnetic induction coil releases stored heat to quickly raise the temperature. The waste heat of flue gas is used to reverse charge the silicon carbide module to store energy for later use. Semiconductor gas sensor 104 monitors gas leakage in real time. After detecting a leakage, the FPGA parallel signal processing system analyzes the signal and automatically starts the inert gas injection port 103 to fill with nitrogen or argon to suppress the leakage and maintain the inert atmosphere in the furnace.

[0037] Simultaneously, motor B401 drives the rotating rod 402 to reciprocate, causing the four sets of stirring rods 404 to rotate synchronously. The slider 406 moves vertically back and forth under the action of the guide block 408. When the slider 406 moves upward, the connecting rod 405 drives the stirring rod 404 to retract inward through the telescopic rod 403; when the slider 406 moves downward, the stirring rod 404 extends outward, realizing full-range stirring of the aluminum liquid from the center to the edge, avoiding local overheating.

[0038] When the molten aluminum needs to be removed after the insulation is complete, turn off the combustion module 107 and motor B401 to stop heating and stirring. Then, control the moving end of the cylinder 301 to rise and open the cover plate 102. The gas in the air bag 304 returns to the air cylinder 302. The air bag 304 contracts to prevent material fatigue, and the molten aluminum can be poured out. If it is necessary to open the cover plate 102 to clean the furnace body 100 or the stirring mechanism 400, the operator can pull the lever 202 to release the locking of the connecting mechanism 200 and remove the cover plate 102 for cleaning. The operation is relatively simple.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dynamic balance type gas aluminum alloy holding furnace comprising a furnace body (100), characterized in that, Also include: The top end outer wall of the cover plate (102) is fixedly connected with inert gas injection port (103), the top end outer wall of the cover plate (102) is fixedly connected with semiconductor gas sensor (104), the inner wall of the furnace body (100) is fixedly connected with silicon carbide energy storage module (105), the bottom end inner wall of the furnace body (100) is fixedly connected with motor A (108), the output shaft of motor A (108) is fixedly connected with base (106), the outer wall of base (106) is fixedly connected with combustion module (107), the inner wall of the furnace body (100) is fixedly connected with bottom plate (109), the outer wall of the furnace body (100) is fixedly connected with connecting seat (110); The inner wall of the furnace body (100) is provided with sealing mechanism (300), the cover plate (102) is connected with sealing mechanism (300) through connecting mechanism (200), the bottom end outer wall of the cover plate (102) is provided with stirring mechanism (400).

2. The dynamically balanced gas-fired aluminum alloy holding furnace of claim 1, wherein, The connecting mechanism (200) includes connecting block (201), the inner wall of the connecting block (201) is slidably connected with pull rod (202), the outer wall of the pull rod (202) is hingedly connected with lug (204) through hinged rod (203), the lug (204) is provided with two groups, two groups of lug (204) are elastically connected through connecting spring (205), the outer wall of the connecting block (201) is clamped with mounting seat (206), the inner wall of the mounting seat (206) is provided with groove (207).

3. The dynamically balanced gas-fired aluminum alloy holding furnace of claim 2, wherein, The outer wall of the connecting block (201) and the cover plate (102) is fixedly connected, the outer wall of the hinged rod (203) is hingedly connected with the lug (204) and the pull rod (202) respectively, the lug (204) is slidably connected in the inner wall of the connecting block (201).

4. The dynamically balanced gas-fired aluminum alloy holding furnace of claim 2, wherein, The outer wall of the connecting spring (205) is fixedly connected with the lug (204) of the two groups respectively, the lug (204) is clamped with the groove (207).

5. The dynamically balanced gas-fired aluminum alloy holding furnace of claim 1, wherein, The sealing mechanism (300) includes air cylinder (301), the inner wall of the connecting seat (110) is fixedly connected with air cylinder (302), the outer wall of the air cylinder (302) is fixedly connected with gas pipe (303), the inner wall of the furnace body (100) is fixedly connected with air bag (304), the inner wall of the air cylinder (302) is slidably connected with moving rod (305), the outer wall of the moving rod (305) is fixedly connected with pressing plate (306).

6. The dynamically balanced gas-fired aluminum alloy holding furnace of claim 5, wherein, The air cylinder (301) is fixedly connected in the inner wall of the connecting seat (110), the movable end of the air cylinder (301) is fixedly connected with the bottom end outer wall of the mounting seat (206), the outer wall of the moving rod (305) is fixedly connected with the mounting seat (206).

7. The dynamically balanced gas-fired aluminum alloy holding furnace of claim 5, wherein, The gas pipe (303), the air cylinder (302) and the air bag (304) are connected, the inner wall of the pressing plate (306) and the air cylinder (302) is slidably connected, the air bag (304) is in contact with the outer wall of the cover plate (102).

8. The dynamically balanced gas-fired aluminum alloy holding furnace of claim 1, wherein, Said stirring mechanism (400) includes motor B (401), the output shaft of motor B (401) is fixedly connected with the rotating rod (402), the outer wall of rotating rod (402) is fixedly connected with telescopic link (403), the movable end of telescopic link (403) is fixedly connected with stirring rod (404), the outer wall of sliding block (406) is slidably connected with the outer wall of rotating rod (402), the outer wall of sliding block (406) is hingedly connected with connecting rod (405), the outer wall of sliding block (406) is provided with arc slot (407), the bottom end outer wall of cover plate (102) is fixedly connected with guide block (408).

9. The dynamically balanced gas-fired aluminum alloy holding furnace of claim 8, wherein, Said motor B (401) is fixedly connected on the top outer wall of cover plate (102), and the rotating rod (402) is rotatably connected with the inner wall of cover plate (102).

10. The dynamically balanced gas-fired aluminum alloy holding furnace of claim 8, wherein, Said connecting rod (405) is hingedly connected with the outer wall of stirring rod (404), the guide block (408) is in contact with the inner wall of arc slot (407), and the rotating rod (402) penetrates through the outer wall of cover plate (102).

Images