Automatic deslagging device of molten aluminum standing furnace

Abstract

The invention relates to the technical field of molten aluminum standing furnaces, in particular to an automatic slag discharging device of a molten aluminum standing furnace, which comprises a slag discharging mechanism, the slag discharging mechanism comprises a dross scraping mechanism and a deposited slag scraping mechanism, the dross scraping mechanism is arranged in a furnace body and used for scraping dross positioned in a square accommodating cavity to an outlet of the furnace body, and the deposited slag scraping mechanism is arranged in the furnace body and used for scraping deposited slag in a square accommodating cavity to an outlet of the furnace body. Deposited slag attached to the inner wall of the hemispherical containing cavity is scraped away; the slag removal device has the beneficial effects that the dross scraping mechanism and the deposited slag scraping mechanism are integrated through the slag removal mechanism, and dross on the surface of molten aluminum and deposited slag at the bottom of the furnace can be removed. Meanwhile, the deslagging mechanism is matched with the special structure combining the square containing cavity and the hemispherical containing cavity, and a remarkable synergistic effect is generated. Wherein the straight edge structure of the square accommodating cavity provides an ideal working surface for scraping dross, and the arc-shaped inner wall of the hemispherical accommodating cavity effectively promotes natural collection and concentration of deposited dross.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum liquid static furnaces, and in particular to an automatic slag tapping device for an aluminum liquid static furnace. Background Art

[0002] In the aluminum processing industry, molten aluminum rest furnaces are key equipment for purifying molten aluminum after smelting. During the resting process, impurities within the molten aluminum separate due to density differences: some lighter impurities (such as oxides and flux residues) float to the surface of the molten aluminum, forming scum, while heavier impurities (such as intermetallic compounds and sedimentation particles) settle to the bottom of the furnace, forming slag. To ensure the purity of the molten aluminum, both scum and slag must be removed to prevent them from adversely affecting subsequent casting or rolling processes. Currently, dross removal typically involves mechanical skimming or air purge, which collects the dross at the furnace mouth and then discharges it. This technology is relatively mature. However, cleaning slag deposits presents a greater challenge: deposited slag tends to adhere tightly to the furnace bottom, making it difficult to completely flush it out with the natural flow of molten aluminum alone. Traditionally, slag removal has been achieved through a slag discharge pipe located at the furnace bottom, allowing the flow of molten aluminum to remove the deposited slag, but this approach has limited effectiveness.

[0003] Current slag discharge devices (such as slag scrapers, slag collectors, etc.) are mainly designed for slag removal and lack effective means to clean deposited slag. Therefore, there is an urgent need to develop an automated slag discharge device that integrates slag removal and deposited slag scraping functions to solve the problem of difficult removal of deposited slag at the bottom of a static furnace. Summary of the Invention

[0004] In order to solve the above problems, an embodiment of the present invention provides an automatic slag tapping device for a molten aluminum static furnace, which achieves the purpose of solving the problems raised in the background technology.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical scheme: an automatic slag discharge device for an aluminum liquid static furnace, comprising: a slag discharge mechanism, which is arranged inside the furnace body, and scrapes off the aluminum liquid slag and deposited slag inside the furnace body; the interior of the furnace body is a square accommodating cavity, and the bottom of the square accommodating cavity transitions to form a hemispherical accommodating cavity; the slag discharge mechanism comprises: a slag scraping mechanism, which is arranged inside the furnace body, and scrapes off the slag located inside the square accommodating cavity to the furnace body outlet, and a deposited slag scraping mechanism, which is arranged inside the furnace body, and scrapes off the deposited slag attached to the inner wall of the hemispherical accommodating cavity; the slag discharge mechanism can realize the scraping of aluminum liquid slag inside the furnace body, and at the same time achieve the purpose of scraping off the deposited slag inside the furnace body.

[0006] In the technical scheme of the present application, the dross scraping mechanism comprises a guide rail arranged outside the furnace body, a screw rod rotatably arranged inside the guide rail and driven to rotate by a first motor, a sliding block threadedly connected to the outside of the screw rod and slidingly arranged inside the guide rail, and a scraping assembly arranged inside the sliding block and moving with the sliding block; the first motor is started to drive the guide rail to rotate, so that the sliding block moves inside the guide rail, and then the scraping assembly moves synchronously with the sliding block.

[0007] In the above technical scheme, the deposited slag scraping mechanism comprises a rotating assembly arranged on the dross scraping mechanism and used to drive the scraping assembly to rotate, and a moving assembly arranged on the dross scraping mechanism and used to drive the scraping assembly to move; the rotating assembly drives the scraping assembly to rotate, thereby scraping the deposited slag attached to the hemispherical accommodating cavity; the moving assembly changes the height of the scraping assembly, so that the scraping assembly is attached to the hemispherical accommodating cavity after the height is changed.

[0008] In the above technical scheme, the scraping assembly comprises a base frame rotatably arranged inside the sliding block by the rotating assembly and slidingly arranged inside the sliding block by the moving assembly, a scraping plate slidingly arranged inside the base frame, and a winch assembly arranged outside the base frame and used to drive the scraping plate to move up and down inside the base frame; the moving assembly drives the base frame to move up and down, so that the base frame corresponds to the liquid level height of the aluminum liquid, and the base frame scrapes the aluminum liquid dross when moving; the winch assembly drives the scraping plate to move up and down inside the base frame, so that the scraping plate is attached to the hemispherical accommodating cavity.

[0009] In the above technical scheme, the rotating assembly comprises a rotating disc rotatably arranged on the sliding block, a base frame arranged inside the rotating disc, a second motor mounted on the sliding block, and a first gear fixed on the output shaft of the second motor and rotating to drive the meshing rotating disc to rotate; the second motor is started to drive the rotating disc to rotate through the first gear, thereby driving the base frame to rotate.

[0010] In the above technical scheme, the moving assembly comprises a gear slot opened in the side of the base frame, a third motor mounted on the rotating disc, and a second gear fixed on the output shaft of the third motor and meshing with the base frame through the gear slot; the third motor is started to drive the base frame to move up and down inside the rotating disc through the meshing of the second gear and the gear slot.

[0011] In the above technical scheme, the winch assembly comprises a winding roller rotatably arranged at the end of the base frame, a fourth motor mounted on the base frame and used to drive the winding roller to rotate, and a connecting rope arranged on the winding roller and connected to the scraping plate at one end; the fourth motor is started to drive the winding roller to rotate, and the scraping plate is driven to slide up and down inside the base frame through the winding and unwinding of the connecting rope.

[0012] In the technical scheme of the present application, one side of the furnace body is provided with a furnace opening for discharging dross, and a cover body is hingedly arranged on the furnace body for closing the furnace opening; the dross scraping mechanism concentrates the dross to the furnace opening, and then the dross is scooped out from the furnace opening.

[0013] In the above technical scheme, the top of the furnace body is provided with a through groove for matching the movement of the scraping assembly, and the sliding block is provided with a blocking assembly for blocking the through groove and opening the cover body; the through groove is blocked by the blocking assembly, so as to slow down or prevent the heat in the furnace body from leaking out of the through groove.

[0014] The blocking assembly comprises a blocking plate fixedly connected below the sliding block, a lengthening plate sleeved outside the blocking plate, and a tension spring arranged in a slot in the blocking plate and connecting the blocking plate and the lengthening plate.

[0015] The beneficial effects of the embodiment of the present application are: The present application integrates the dross scraping mechanism and the deposited slag scraping mechanism through the slag discharging mechanism, and can complete the removal of the dross on the surface of the aluminum liquid and the cleaning of the deposited slag at the bottom of the furnace. At the same time, the special structure of the combination of the square accommodating cavity and the hemispherical accommodating cavity of the present application cooperates with each other to produce a significant synergistic effect. The flat edge structure of the square accommodating cavity provides an ideal working surface for the scraping of the dross, and the arc-shaped inner wall of the hemispherical accommodating cavity effectively promotes the natural collection and concentration of the deposited slag. This structure combination not only simplifies the slag discharging operation process, but also greatly improves the thoroughness and efficiency of slag treatment, so that the dross and the deposited slag can be effectively treated in their respective optimal geometric spaces; During the movement of the base frame, the blocking plate of the blocking assembly moves synchronously with the sliding block, and when it moves to the position of the furnace opening, the blocking plate pushes the lengthening plate to extend out of the through groove, and then pushes the cover body to open, realizing the synchronous and automatic operation of dross scraping and furnace opening, effectively preventing the loss of heat in the furnace and the entry of external air due to the through groove; When the dross treatment operation is performed, the baffle is naturally unfolded and placed on the bottom of the base frame under the action of its own gravity, forming an approximately vertical blocking structure with the base frame. When the base frame moves to scrape and collect the dross along the square accommodating cavity, the unfolded baffle can effectively prevent the dross from leaking from the bottom of the base frame, significantly improving the dross collection efficiency; when the base frame moves to the position of the furnace opening, the baffle, together with the base frame and the side wall of the furnace body, forms a closed slag collecting space, and this closed structure can completely block the backflow channel of the dross, creating ideal conditions for manual slag fishing operation; When the scraper is fully retracted into the base frame, the baffle is freed from its restraints and automatically unfolds to its operating position under the action of gravity. When the scraper is extended, the baffle is reliably retracted through mechanical compression. The baffle's state is switched based on the scraper's motion, eliminating the need for an additional drive mechanism. This ensures functional reliability and simplifies the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure at point A in the middle; Figure 3 for Figure 1 A magnified schematic diagram of the structure at B in the middle; Figure 4 is a schematic cross-sectional view of the present invention from a first viewing angle; Figure 5 for Figure 4 A schematic diagram of the structure at point A in the middle; Figure 6 It is a structural schematic diagram of another state of the present invention; Figure 7 It is a cross-sectional schematic diagram of another state of the present invention; Figure 8 It is a structural schematic diagram of the base frame of the present invention; Figure 9 It is a cross-sectional schematic diagram from a second viewing angle of the present invention.

[0017] In the figure: 1. furnace body; 2. slag scraping mechanism; 3. deposited slag scraping mechanism; 4. through-hole; 5. blocking assembly; 6. furnace mouth; 7. cover; 8. baffle; 9. insulation board; 21. Guide rail; 22. Screw rod; 23. Motor 1; 24. Slider; 25. Scraper assembly; 31. Rotating assembly; 32. Moving assembly; 51. Blocking plate; 52. Extension plate; 53. Tension spring; 251. Base frame; 252. Scraper plate; 253. Winch assembly; 2531, rewinding roller; 2532, motor 4; 2533, connecting rope; 311, rotating disk; 312, motor 2; 313, gear 1; 321. Tooth groove; 322. Motor three; 323. Gear two. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] See also Figure 1 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 9 The embodiment of the present invention discloses an automatic slag discharge device for a molten aluminum static furnace, comprising a furnace body 1 and a slag discharge mechanism arranged inside the furnace body 1.

[0020] The slag removal mechanism consists of two parts: a slag scraper 2 and a deposited slag scraper 3, each of which processes slag at different locations. The slag scraper 2 removes slag from the surface of the molten aluminum and transports it to the outlet of the furnace body 1. The deposited slag scraper 3 is located within the hemispherical cavity and is specifically used to scrape off the deposited slag attached to the inner wall of the hemispherical cavity.

[0021] The interior of the furnace body 1 consists of an upper square chamber and a lower hemispherical chamber, connected by a smooth transition. The square chamber's straight edges facilitate the collection and scraping of scum, while the hemispherical chamber's curved inner walls facilitate the natural collection of deposited slag.

[0022] A slag discharge pipe is connected to the bottom center of the hemispherical chamber. Deposits removed by the slag scraping mechanism 3 naturally gather there and are discharged smoothly through the slag discharge pipe. A discharge pipe is connected to the side of the hemispherical chamber. After the dross and slag are removed, the molten aluminum is discharged through the discharge pipe.

[0023] During operation, the aluminum liquid level is controlled within the confines of the square chamber, ensuring that both dross and deposited slag are effectively processed within their respective chambers. This unique structural arrangement, combining a square chamber with a hemispherical chamber, ensures convenient dross scraping while efficiently collecting and discharging deposited slag, significantly improving the efficiency and cleaning of the aluminum liquid static furnace.

[0024] This application integrates a slag scraping mechanism 2 and a deposited slag scraping mechanism 3 through a slag discharge mechanism, capable of removing slag from the surface of the molten aluminum and cleaning the deposited slag at the furnace bottom. At the same time, this slag discharge mechanism works in conjunction with the unique structure of the square and hemispherical accommodating cavities proposed in this application, producing a significant synergistic effect. The straight edge structure of the square accommodating cavity provides an ideal working surface for scraping slag, while the curved inner wall of the hemispherical accommodating cavity effectively promotes the natural gathering and concentration of deposited slag. This structural combination not only simplifies the slag discharge process but also significantly improves the thoroughness and efficiency of slag handling, allowing both slag and deposited slag to be most effectively handled within their respective optimal geometric spaces.

[0025] See also Figure 1-2, which shows a specific embodiment of the slag scraping mechanism 2, which includes a guide rail 21, a screw 22, a drive device, a slider 24, and a scraping assembly 25. The guide rail 21 is fixedly mounted on the outer wall of the furnace body 1, providing a stable operating track for the entire slag scraping mechanism 2. The external guide rail 21 is arranged to avoid direct impact from high-temperature molten aluminum. The screw 22 is rotatably disposed within the internal cavity of the guide rail 21 via a bearing assembly. The drive device is a motor 23, which provides rotational power. The motor is preferably a servo motor or stepper motor for precise speed and position control. The slider 24 forms a threaded engagement with the screw 22 through its internal threaded hole, and also cooperates with the guide rail 21 to ensure smooth operation.

[0026] Scraper assembly 25 is integrally mounted within the internal structure of slider 24. Its scraping portion extends into furnace body 1 and contacts the surface of the molten aluminum. When motor 1 23 rotates screw 22, the threaded drive drives slider 24 in linear motion along guide rail 21, thereby driving scraper assembly 25 to scrape slag from the surface of the molten aluminum in the square chamber.

[0027] See also Figure 1-2 , which shows a specific embodiment of a slag scraping mechanism 3. This mechanism comprises a rotating assembly 31 and a moving assembly 32, which work together to completely remove slag deposits from the hemispherical chamber. The rotating assembly 31 is integrally mounted on the slider 24 of the slag scraping mechanism 2 and can drive the scraping assembly 25 to rotate 0-360°, ensuring coverage of the entire inner surface of the hemispherical chamber. The moving assembly 32 enables the scraping assembly 25 to perform precise linear reciprocating motion along the radial direction of the hemispherical chamber.

[0028] See also Figure 1-4 , which shows a specific embodiment of the scraping assembly 25, comprising a base frame 251, a scraping plate 252, and a hoist assembly 253. The base frame 251 is rotatably mounted within the slider 24 via a rotating assembly 31, while sliding relative to the slider 24 via a moving assembly 32. The scraping plate 252 is slidably disposed within the base frame 251, with its working surface configured as an arc-shaped structure that matches the curvature of the inner wall of the hemispherical receiving chamber, ensuring effective cleaning while protecting the inner wall of the furnace body 1 from damage.

[0029] The hoist assembly 253 consists of a reel 2531, a motor 2532, and a connecting rope 2533. The reel 2531 is mounted on the end of the base frame 251 and is driven by the motor 2532. The connecting rope 2533 is a high-temperature-resistant metal rope, one end of which is fixed to the reel 2531 and the other end is connected to the top of the scraper 252. By controlling the forward and reverse rotation of the motor 2532, the height of the scraper 252 can be precisely adjusted to maintain optimal contact pressure with the deposited slag layer.

[0030] The scraping assembly 25 realizes circumferential motion through the rotating assembly 31, vertical motion of the base frame 251 through the moving assembly 32, and vertical motion of the scraping plate 252 through the winch assembly 253. The composite motion of three degrees of freedom ensures that the scraping plate 252 can fully fit the inner wall surface of the hemispherical accommodating cavity, thereby realizing comprehensive and efficient removal of deposited slag.

[0031] See also Figure 2 , which shows a specific embodiment of the rotating assembly 31, which includes a rotating disk 311, a second motor 312, and a gear 1 313. The rotating disk 311 is rotatably mounted on the slider 24, and a through hole is provided in the center thereof for passing the base frame 251 therethrough, ensuring that the base frame 251 maintains a stable motion trajectory during rotation. The second motor 312 is fixedly mounted on the side of the slider 24, and its output shaft is fixedly connected to the gear 1 313. The gear 1 313 forms a precise meshing transmission relationship with the rotating disk 311. When the second motor 312 is started, the rotating disk 311 is driven to rotate around its axis through the gear 1 313, thereby driving the entire scraping assembly 25 to perform circumferential motion.

[0032] See also Figure 2 , which shows a specific embodiment of the moving component 32 , the moving component 32 includes: a tooth groove 321 , a motor three 322 and a gear two 323 .

[0033] The tooth grooves 321 are precisely machined along the length of the base frame 251 to form a continuous linear rack structure. Motor three 322 is mounted on the upper surface of the rotating disk 311, and its output shaft is fixedly connected to gear two 323. Gear two 323 forms a precise meshing transmission relationship with the tooth grooves 321 on the side of the base frame 251. When motor three 322 is running, the meshing action of gear two 323 and the tooth grooves 321 drives the base frame 251 to perform radial linear motion relative to the rotating disk 311. The meshing portion between the tooth grooves 321 and gear two 323 is provided with a self-lubricating structure to ensure smooth transmission performance even in high temperature environments.

[0034] See also Figure 4 A furnace opening 6 specifically for discharging slag is provided on the side wall of the furnace body 1. The position of the furnace opening 6 corresponds to the end of the operating trajectory of the slag scraping mechanism 2, ensuring that the scraped slag can be accurately concentrated at the slag discharge position. The furnace opening 6 adopts a rectangular opening design, and its size is determined according to the slag processing capacity. The cover body 7 is connected to the furnace body 1 through a heavy-duty hinge mechanism, which can be rotated and opened and closed more than 90° around the horizontal axis to achieve rapid opening and closing of the furnace opening 6. The side of the cover body 7 close to the furnace opening 6 is inlaid with high-temperature resistant sealing material, which forms a tight fit with the furnace opening 6 when closed to ensure the airtightness of the furnace body 1.

[0035] When the slag scraping mechanism 2 is in operation, the scraping assembly 25 is driven by the cooperation of the guide rail 21 and the screw 22 to move along the surface of the molten aluminum, scraping the slag to the furnace opening 6. The cover 7 is opened, and the operator can use a special tool to remove the slag from the furnace opening 6. The liquid level of the molten aluminum is controlled within the confines of the square holding chamber and is lower than the height of the furnace opening 6.

[0036] See also Figure 5 A through slot 4 is provided on the top of the furnace body 1 along the movement direction of the slag scraping mechanism 2 . The width of the through slot 4 matches the movement range of the scraping assembly 25 , providing the necessary moving space for the scraping assembly 25 .

[0037] The sealing assembly 5 is fixed to the bottom of the slider 24 and comprises a sealing plate 51, an extension plate 52, and a tension spring 53. The sealing plate 51 is rigidly connected to the bottom of the slider 24, and its width matches the width of the through-slot 4, forming a sliding seal. The extension plate 52 slides over the sealing plate 51 via a guide groove, and the two are elastically connected by a tension spring 53 located in a notch within the sealing plate 51.

[0038] When the scraper assembly 25 moves, the blocking plate 51 moves synchronously with the slider 24, maintaining a dynamic seal against the through-groove 4. The blocking assembly 5 is constructed from high-temperature-resistant stainless steel. The bottoms of the blocking plate 51 and the extension plate 52 are equipped with graphite sealing strips, forming a strong, high-temperature seal against the edges of the through-groove 4. The tension spring 53 is constructed from a high-temperature alloy spring, maintaining stable elastic properties within the operating temperature range of the furnace body 1. This ensures the freedom of movement of the scraper assembly 25 while effectively preventing heat loss and air ingress within the furnace. Furthermore, it ensures coordinated operation with the opening mechanism of the lid 7.

[0039] See also Figure 1-9 The automatic slag discharge device for the aluminum liquid static furnace proposed in this application includes two main steps: slag treatment and deposited slag treatment.

[0040] During the dross removal phase, Motor 1 23 is first activated to drive slider 24, moving base frame 251 away from furnace opening 6. Motor 3 322 is then activated, driving base frame 251 downward into the molten aluminum via gear 2 323. Motor 1 23 is activated again, driving base frame 251 toward furnace opening 6. Because the width of base frame 251 precisely matches the width of the rectangular receiving chamber, all dross on the surface of the molten aluminum can be scraped off in one go and concentrated at furnace opening 6. If a small amount of dross is missed, Motor 3 322 can be used to lift base frame 251 away from the molten aluminum, returning it to its starting position and repeating the scraping operation.

[0041] During the movement of the base frame 251, the sealing plate 51 of the sealing assembly 5 moves synchronously with the slider 24. When it moves to the position of the furnace mouth 6, the sealing plate 51 pushes the extension plate 52 to extend from the through groove 4, and then pushes open the cover body 7, realizing the synchronous automatic operation of slag scraping and opening the furnace mouth 6.

[0042] During the slag treatment phase, Motor 4 2532 is first activated, releasing the connecting rope 2533 via the reel-up roller 2531. This allows the scraper blade 252 to move downward under gravity. Motor 3 322 then drives the scraper assembly 25 downward as a whole, ensuring that the scraper blade 252 is in close contact with the inner wall of the hemispherical chamber. Motor 2 312 is activated, driving the rotating disk 311 to reciprocate, which in turn drives the scraper blade 252 to reciprocate along the inner wall of the hemispherical chamber, thoroughly scraping the attached slag to the bottom. Finally, the slag discharge pipe is opened to discharge the slag along with the molten aluminum.

[0043] See also Figure 4 A foldable baffle 8 is provided on one side of the base frame 251 , and the baffle 8 is hingedly provided on the base frame 251 .

[0044] During scum removal, baffle 8 naturally unfolds under its own weight and lies flat on the bottom of base frame 251, forming a nearly vertical blocking structure with base frame 251. As base frame 251 moves along the square receiving cavity to scrape and collect scum, the unfolded baffle 8 effectively prevents scum from leaking from the bottom of base frame 251, significantly improving scum collection efficiency.

[0045] In particular, when the base frame 251 moves to the furnace opening 6, the baffle 8, the base frame 251 and the side wall of the furnace body 1 together form a closed slag collecting space (such as Figure 7 As shown in the figure, this closed structure can completely block the slag reflux channel, creating ideal conditions for manual slag removal operations.

[0046] When the deposited slag is being processed, the scraper plate 252 extends from the bottom of the base frame 251, and during its movement, it generates an inward squeezing force on the baffle 8, forcing the baffle 8 to rotate around the hinge point and fold to the side of the base frame 251 (such as Figure 4 This folded state can prevent the baffle 8 from pressing the collected slag back into the aluminum liquid during the downward movement of the base frame 251.

[0047] When the scraper 252 is fully retracted into the base frame 251, the baffle 8 is freed from its restraints and automatically unfolds to its operating position under the action of gravity. When the scraper 252 is extended, the baffle 8 is reliably retracted through mechanical compression. The state of the baffle 8 is switched by the movement of the scraper 252, eliminating the need for an additional drive mechanism. This ensures functional reliability and simplifies the overall structure.

[0048] See also Figure 7A heat preservation plate 9 is arranged at the furnace opening 6, and the heat preservation plate 9 is fixedly connected with the inner wall of the furnace body 1. The heat preservation plate 9 is made of multi-layer composite heat insulation material, the inner layer is high-temperature resistant ceramic fiber plate, the outer layer is stainless steel guard plate, and the middle is filled with nano aerogel heat insulation material, so that the temperature of the aluminum liquid can be effectively maintained stable. When the base frame 251 moves to the working position of the furnace opening 6, at this time, the baffle 8 is attached to the inner wall of the furnace body 1, and the heat preservation plate 9 is attached to the base frame 251, so that the baffle 8, the heat preservation plate 9, the base frame 251 and the side wall of the furnace body 1 form a completely closed slag collecting chamber.

[0049] The closed structure has multiple functional advantages: first, the closed structure can completely block the backflow channel of the floating slag, ensuring that all the scraped floating slag is effectively intercepted in the slag collecting chamber; second, the closed structure significantly reduces the heat loss inside the furnace body 1; third, the closed structure avoids direct contact of the aluminum liquid with air, greatly reducing the risk of oxidation of the aluminum liquid.

[0050] It should be noted that in the description of the present application, the terms indicating the direction or positional relationship such as "center, upper, lower, left, right, vertical, horizontal, inner, outer" are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first, second, third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] In addition, it should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting, connecting, connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] The term "includes" or any other similar term is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to the process, article or equipment / device.

[0053] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. An automatic slag discharge device for a molten aluminum static furnace, characterized in that: include: A slag removal mechanism is provided inside the furnace body (1) and scrapes away aluminum molten slag and deposited slag inside the furnace body (1); The interior of the furnace body (1) is a square accommodating cavity, and the bottom of the square accommodating cavity transitions to form a hemispherical accommodating cavity; The slag discharge mechanism comprises: A scum scraping mechanism (2) is arranged inside the furnace body (1) and scrapes the scum inside the square accommodating cavity to the outlet of the furnace body (1); and The deposited slag scraping mechanism (3) is arranged inside the furnace body (1) and scrapes off the deposited slag attached to the inner wall of the hemispherical accommodating cavity.

2. The automatic slag discharge device for a molten aluminum static furnace according to claim 1, characterized in that: The scum scraping mechanism (2) comprises: The guide rail (21) is arranged outside the furnace body (1). The screw rod (22) is rotatably arranged inside the guide rail (21) and is driven to rotate by a motor (23). a slider (24) threadedly connected to the outside of the screw rod (22) and slidably arranged inside the guide rail (21), and The scraping assembly (25) is arranged inside the slider (24) and moves along with the movement of the slider (24).

3. The automatic slag tapping device for a molten aluminum static furnace according to claim 2, characterized in that: The deposited slag scraping mechanism (3) comprises: A rotating assembly (31) is provided on the scum scraping mechanism (2) and is used to drive the scraping assembly (25) to rotate, and The moving assembly (32) is arranged on the scum scraping mechanism (2) and is used to drive the scraping assembly (25) to move.

4. The automatic slag discharge device for a molten aluminum static furnace according to claim 3, characterized in that: The scraping assembly (25) comprises: The base frame (251) is rotatably disposed inside the slider (24) via the rotating assembly (31) and is slidably disposed inside the slider (24) via the moving assembly (32). a scraper plate (252) slidably disposed inside the base frame (251), and The hoisting assembly (253) is arranged outside the base frame (251) and is used to drive the scraping plate (252) to move up and down inside the base frame (251).

5. The automatic slag tapping device for a molten aluminum static furnace according to claim 4, characterized in that: The rotating assembly (31) comprises: The rotating disk (311) is rotatably mounted on the slider (24) and has a base frame (251) disposed therein. Motor 2 (312), mounted on the slider (24), and Gear 1 (313) is fixed on the output shaft of motor 2 (312) and rotates to drive the meshing rotating disk (311) to rotate.

6. The automatic slag tapping device for a molten aluminum static furnace according to claim 5, characterized in that: The mobile assembly (32) comprises: The tooth groove (321) is provided on the side of the base frame (251). Motor three (322), mounted on the rotating disk (311), and Gear 2 (323) is fixed on the output shaft of motor 3 (322) and meshes with the base frame (251) through the tooth groove (321).

7. The automatic slag tapping device for a molten aluminum static furnace according to claim 6, characterized in that: The hoisting assembly (253) includes: The winding roller (2531) is rotatably arranged at the end of the base frame (251). Motor 4 (2532), mounted on the base frame (251), is used to drive the winding roller (2531) to rotate, and A connecting rope (2533) is arranged on the winding roller (2531), and one end of the connecting rope is connected to the scraping plate (252).

8. The automatic slag tapping device for a molten aluminum static furnace according to claim 2, characterized in that: A furnace opening (6) for discharging slag is provided on one side of the furnace body (1), and a cover (7) for closing the furnace opening (6) is hingedly provided on the furnace body (1).

9. The automatic slag tapping device for a molten aluminum static furnace according to claim 8, characterized in that: The top of the furnace body (1) is provided with a through groove (4) for cooperating with the movement of the scraping assembly (25), and the slider (24) is provided with a blocking assembly (5) for blocking the through groove (4) and for opening the cover (7).

10. The automatic slag tapping device for a molten aluminum static furnace according to claim 9, characterized in that: The blocking component (5) comprises: The blocking plate (51) is fixedly connected to the bottom of the slider (24), and the width of the blocking plate (51) is the same as the width of the through groove (4). An extension plate (52) is sleeved on the outside of the blocking plate (51), and the width of the extension plate (52) is the same as the width of the through slot (4), and The tension spring (53) is arranged in a notch provided inside the blocking plate (51) and connects the blocking plate (51) and the extension plate (52).

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