A furnace cleaning and slag removal device for electrolytic aluminum processing

Abstract

The present invention relates to the technical field of electrolytic aluminum, and discloses a furnace cleaning and slag removal device for electrolytic aluminum processing, comprising a cleaning device, wherein the cleaning device comprises a slag removal mechanism and a slag scooping mechanism, wherein two slag removal mechanisms are symmetrically provided, the slag removal mechanism comprises a cover 1 and a hydraulic cylinder 1 hingedly provided in the electrolytic furnace, and multiple groups of slag removal operation mechanisms are provided on the inner side of the bottom of the slag removal mechanism, the slag removal operation mechanism comprises a swing arm whose action end moves in an elliptical trajectory, a slag removal plate is rotatably provided on the swing arm, the slag scooping mechanism comprises a cover 2 and a hydraulic cylinder 2 hingedly provided in the electrolytic furnace, a slag scooping plate group and a guide frame are provided at the bottom of the cover 2, the slag on the surface of the aluminum liquid is pushed from the front side of the electrolytic furnace to the slag scooping plate group by the slag removal plate of the slag removal operation mechanism, and the slag on the slag scooping plate group drives the slag to be lifted and dumped onto the discharge platform. The present invention can simultaneously perform slag removal operations from both sides of the electrolytic furnace through the symmetrically provided slag removal mechanism and the slag scooping mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of electrolytic aluminum, and in particular to a furnace cleaning and slag removal device for electrolytic aluminum processing. Background Art

[0002] During the electrolytic aluminum production process, a large amount of slag will be generated in the electrolytic furnace. This slag is mainly composed of alumina, electrolyte and other impurities. The accumulation of slag will not only affect the quality of electrolytic aluminum, but also reduce the working efficiency of the electrolytic furnace and even cause equipment damage. Therefore, regular cleaning of the slag in the electrolytic furnace is an essential part of the electrolytic aluminum production process.

[0003] The traditional method of furnace cleaning and slag removal mainly relies on manual operation. Workers use tools to remove the slag from the electrolytic furnace. This method is not only labor-intensive and inefficient, but also has certain safety hazards. In addition, manual operation cannot ensure the thoroughness of slag cleaning, which can easily lead to slag residue and affect the quality of electrolytic aluminum.

[0004] In recent years, with the development of automation technology, some automated furnace cleaning and slag removal devices have gradually been introduced into electrolytic aluminum production. However, existing automated devices still have many shortcomings in structural design and operating efficiency. For example, some devices have unsatisfactory slag removal effects and incomplete slag removal; some devices have complex slag removal mechanisms and high maintenance costs; and some devices easily waste molten aluminum during operation, affecting production efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a furnace cleaning and slag removal device for electrolytic aluminum processing.

[0006] The slag scraping device according to claim 1, wherein the cleaning device comprises a slag scraping mechanism and a slag scooping mechanism, the slag scraping mechanism being symmetrically provided with two slag scraping mechanisms, the slag scraping mechanism comprising a cover cover and a hydraulic cylinder hingedly arranged in the electrolytic furnace, the output end of the hydraulic cylinder being hingedly connected to the cover cover, the cover cover being provided with a liquid extraction guide hole, the bottom inner side of the slag scraping mechanism being provided with multiple groups of slag scraping operation mechanisms, the slag scraping operation mechanism comprising a swing arm which moves in an elliptical trajectory at an acting end, a slag scraping plate being rotatably provided on the swing arm, and a driving mechanism for driving the slag scraping operation mechanism to operate being provided outside the electrolytic furnace.

[0007] During cleaning, two covers, one and two, cover the top of the electrolytic cell. The slag on the surface of the molten aluminum is pushed from the front side of the electrolytic furnace to the slag plate group through the slag scraping plate of the slag scraping operation mechanism. When the cover two rotates, it drives the slag plate group to rotate, so that the slag on the slag plate group is lifted and dumped onto the discharge platform.

[0008] As an improvement: the slag scraping operation mechanism includes a sprocket 1, a fixed gear 2 and a tripod. The sprocket 1 of multiple groups of slag scraping operation mechanisms are coordinated through chain transmission. One side of the sprocket 1 is coaxially connected to the sprocket 2. The driving mechanism drives the sprocket 2 to rotate. The fixed gear 2 is fixed inside the cover 1. A transmission shaft is provided on the other side of the sprocket 1. The transmission shaft passes through the axial through hole of the fixed gear 2 and is connected to one end point of the tripod. The other end point of the tripod is rotatably provided with a swing arm 1, and the end of the swing arm is connected to the swing arm.

[0009] As an improvement: a transmission gear and an adjusting gear are rotatably provided at the two end points of the tripod, the adjusting gear is connected to the connecting shaft at one end of the swing arm, the transmission gear is respectively engaged with the fixed gear 2 and the adjusting gear, and the number of teeth and the tooth pitch of the fixed gear 2 and the adjusting gear are equal.

[0010] As an improvement: the swing arm includes two swing arms, a slider one and a slider two. The top of the scraping plate is rotatably connected to the two ends of the two swing arms. A gravity rod is provided at the bottom of the scraping plate. A fixed shaft is provided at the end of one swing arm. The fixed shaft rotates with the slider one and is connected to one of the swing arms two. The other end of the other swing arm is rotatably connected to the slider two. The slider one and the slider two are respectively slidably arranged in the slide grooves at the two ends of the inner side of the cover one.

[0011] As an improvement: the slag scooping plate group includes multiple slag scooping plates 1 and slag scooping plates 2, slag scooping plates 1 and slag scooping plates 2 are arranged at intervals, slag scooping plates 1 and slag scooping plates 2 are provided with baffles on the side close to the slag scraping mechanism, and are both provided with hanging rods on the top, the guide frame includes a fixed trough column fixed to the bottom of the cover 2 and a movable trough column that can be raised and lowered, a hydraulic cylinder 3 is provided on the cover 2, the output end of the hydraulic cylinder 3 is connected to the movable trough column through the through hole on the cover 2, and the slag scooping plate 1 and slag scooping plate 2 are respectively suspended under the fixed trough column and the movable trough column by hanging rods.

[0012] As an improvement: Slot column one and slot column two are respectively slidably provided in the fixed slot column and the movable slot column, slag scoop plate one and slag scoop plate two are respectively connected to slot column one and slot column two through a hanger, a linkage shaft is provided on the inner side of slot column one and slot column two, a linkage rod is provided between adjacent slot columns one and adjacent slot columns two, straight slots that slide with the linkage shaft are provided at both ends of the linkage rod, and a pushing mechanism is provided at both ends of the cover two to push slot column one and slot column two to move, so that the distance between adjacent slag scoop plates one and two is reduced.

[0013] As an improvement: the pushing mechanism includes a hydraulic cylinder four arranged on the cover two, and a pushing rack is provided at the output end of the hydraulic cylinder four, and a pushing column one and a pushing column two are provided on the pushing rack, and the pushing column one and the pushing column two extend into the fixed slot column and the movable slot column respectively, and the end of the pushing column one is connected to the outermost slot column one inside the fixed slot column, and the end of the pushing column two is in contact with and cooperates with the outermost slot column two inside the movable slot column, and a side pushing plate is provided at the bottom of the pushing rack.

[0014] As an improvement: a limit block 1 and a limit block 2 are provided on one side of the outermost linkage rod inside the fixed slot column, and a linkage block that cooperates with the limit block 1 and the limit block 2 is provided on one side of the outermost linkage rod inside the movable slot column.

[0015] As an improvement: an arc-shaped platform is provided on one side of the discharging platform, and the lower half of the arc-shaped platform is provided in the electrolytic cell. During the rotation of slag scoop plate 1 and slag scoop plate 2, the ends of slag scoop plate 1 and slag scoop plate 2 close to the arc-shaped platform maintain a certain gap with the arc-shaped platform, a discharging inclined platform is provided on the top of the discharging platform, and a heat insulation plate in contact with the discharging inclined platform is provided at the rear end of cover 2.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: the present invention can simultaneously perform slag removal operations from both sides of the electrolytic furnace through the symmetrically arranged slag removal mechanism and slag scooping mechanism. Combined with the slag scooping work, the efficiency of slag cleaning is significantly improved. The automated operation reduces manual intervention and further improves work efficiency. Specifically:

[0017] 1. The present invention adopts a uniquely designed slag removal mechanism. The active end of the swing arm moves in an elliptical trajectory. In conjunction with the rotating slag removal plate, it can efficiently push the slag on the surface of the molten aluminum from the front side of the electrolytic furnace to the slag removal plate group. Multiple slag removal mechanisms are driven by sprockets and chains to achieve synchronous operation. Compared with traditional methods, the slag removal efficiency is greatly improved and the time required for slag removal is reduced.

[0018] 2. The slag scoop plate group consists of a plurality of slag scoop plates 1 and 2 arranged at intervals. Before scooping, the distance between the plates can be increased by the pushing mechanism to facilitate the flow of slag. When scooping, the distance is reduced, and the baffle is used to block the backflow of slag. The slag can be accurately scooped out, effectively avoiding slag residue and improving the thoroughness of slag scooping.

[0019] 3. The design of cover 1 and cover 2 can not only effectively cover the electrolytic cell and slow down heat loss, but also further improve the thermal insulation performance of the device through the design of the thermal insulation board, ensuring the temperature stability in the electrolytic furnace and preventing the aluminum liquid surface from solidifying after the slag temperature drops, making it difficult to extract the aluminum liquid later. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic structural diagram of a furnace cleaning and slag removal device for electrolytic aluminum processing.

[0021] Figure 2 It is a cross-sectional view of a furnace cleaning and slag removal device for electrolytic aluminum processing according to the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of a furnace cleaning and slag removal device for electrolytic aluminum processing of the present invention. Figure 1 .

[0023] Figure 4 This is a schematic diagram of the structure of a furnace cleaning and slag removal device for electrolytic aluminum processing of the present invention. Figure 2 .

[0024] Figure 5 The present invention is a structural schematic diagram of a slag removal mechanism of a furnace cleaning and slag removal device for electrolytic aluminum processing.

[0025] Figure 6 The present invention is a structural schematic diagram of a slag removal operation mechanism of a furnace cleaning and slag removal device for electrolytic aluminum processing.

[0026] Figure 7 The present invention is a partial structural schematic diagram of a slag removal operation mechanism of a furnace cleaning and slag removal device for electrolytic aluminum processing.

[0027] Figure 8 It is a partial exploded view of the slag removal operating mechanism of a furnace cleaning and slag removal device for electrolytic aluminum processing according to the present invention.

[0028] Figure 9 The present invention discloses a working trajectory diagram of a slag removal mechanism of a furnace cleaning and slag removal device for electrolytic aluminum processing.

[0029] Figure 10 The present invention is a schematic structural diagram of a driving mechanism of a furnace cleaning and slag removal device for electrolytic aluminum processing.

[0030] Figure 11 This is an exploded view of a linkage device for a furnace cleaning and slag removal device for electrolytic aluminum processing according to the present invention.

[0031] Figure 12 The present invention is a structural schematic diagram of a slag scooping mechanism of a furnace cleaning and slag scooping device for electrolytic aluminum processing.

[0032] Figure 13 The present invention is a cross-sectional view of a slag scooping mechanism of a furnace cleaning and slag scooping device for electrolytic aluminum processing.

[0033] Figure 14 The present invention is an exploded view of a slag scooping mechanism of a furnace cleaning and slag scooping device for electrolytic aluminum processing.

[0034] Figure 15 The present invention is a structural schematic diagram of a slag scooping plate assembly of a furnace cleaning and slag scooping device for electrolytic aluminum processing.

[0035] Figure 16This is an exploded view of a slag scooping plate assembly of a furnace cleaning and slag scooping device for electrolytic aluminum processing according to the present invention.

[0036] Figure 17 The present invention is a schematic structural diagram of a pushing mechanism of a furnace cleaning and slag removal device for electrolytic aluminum processing.

[0037] As shown in the figure: 00, electrolytic furnace; 01, furnace wall; 02, electrolytic cell; 03, floor; 04, electrolytic cathode; 05, electrolytic anode; 1, cleaning device; 2, slag removal mechanism; 3, slag removal mechanism; 4, slag removal operation mechanism; 5, driving mechanism; 6, slag removal plate group; 7, guide frame; 8, pushing mechanism; 21, cover 1; 22, liquid extraction guide hole; 23, hydraulic cylinder 1; 31, cover 2; 311, thermal insulation Plate; 32, Hydraulic Cylinder 2; 33, Discharging Platform; 331, Curved Platform; 332, Discharging Inclined Platform; 41, Sprocket 1; 411, Conveyor Shaft; 412, Sprocket 2; 42, Fixed Gear 2; 43, Tripod; 44, Transmission Gear; 45, Adjustment Gear; 46, Swing Arm 1; 461, Fixed Shaft; 47, Swing Arm; 471, Swing Arm 2; 472, Slide Block 1; 473, Slide Block 2; 48, Slag Skimmer Plate; 481, gravity rod; 49, guide wheel; 51, motor; 52, reduction gearbox; 53, drive rod; 54, spline shaft 1; 55, universal joint; 56, main drive shaft; 561, sprocket 3; 57, auxiliary drive shaft; 571, sprocket 4; 58, coupling; 581, cylinder; 582, push plate; 583, inserting table; 584, spline shaft 2; 61, slag plate 1; 611, top block; 612, Baffle; 62, slag scoop plate 2; 63, hanging rod; 64, slot column 1; 641, linkage shaft; 642, limit block 1; 643, limit block 2; 65, slot column 2; 651, linkage block; 66, linkage rod; 661, straight slot; 71, fixed slot column; 72, movable slot column; 73, hydraulic cylinder 3; 81, hydraulic cylinder 4; 82, pushing frame; 83, push column 1; 84, push column 2; 85, side push plate. DETAILED DESCRIPTION

[0038] The present invention will be described in further detail below with reference to the accompanying drawings.

[0039] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4As shown, a furnace cleaning and slag removal device for electrolytic aluminum processing includes a cleaning device 1, wherein the cleaning device 1 includes a slag removal mechanism 2 and a slag scooping mechanism 3. The slag removal mechanism 2 is symmetrically provided with two, and the slag removal mechanism 2 includes a cover 21 and a hydraulic cylinder 23 hingedly arranged in the electrolytic furnace 00. The output end of the hydraulic cylinder 23 is hinged to the cover 21, and the cover 21 is provided with a liquid extraction guide hole 22. The bottom inner side of the slag removal mechanism 2 is provided with multiple groups of slag removal operating mechanisms 4, and the slag removal operating mechanism 4 includes a swing arm 47 whose action end moves in an elliptical trajectory, and a slag removal plate 48 is rotatably provided on the swing arm 47. A driving mechanism 5 for driving the slag removal operating mechanism 4 is provided outside the electrolytic furnace 00. The slag scooping mechanism 3 includes a hinged A cover 2 31 and a hydraulic cylinder 2 32 are provided in the electrolytic furnace 00. The output end of the hydraulic cylinder 2 32 is hinged to the cover 2 31. A slag scooping plate group 6 and a guide frame 7 are provided at the bottom of the cover 2 31. The guide frame 7 is provided on the inner side of the cover 2 31. The slag scooping plate group 6 is movably provided under the guide frame 7. The slag scooping mechanism 3 also includes a discharge platform 33 provided on the rear side of the electrolytic furnace 00. During cleaning, the two cover 1 21 and the cover 2 31 cover the top of the electrolytic cell 02. The slag on the surface of the aluminum liquid is pushed from the front side of the electrolytic furnace 00 to the slag scooping plate group 6 through the slag scooping plate 48 of the slag scooping operation mechanism 4. When the cover 2 31 rotates, it drives the slag scooping plate group 6 to rotate, so that the slag on the slag scooping plate group 6 is lifted and dumped onto the discharge platform 33.

[0040] Combined with attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 and attached Figure 8 As shown, the slag scraping operation mechanism 4 includes a sprocket 1 41, a fixed gear 2 42 and a tripod 43. The sprockets 1 41 of the multiple groups of slag scraping operation mechanisms 4 are coordinated through chain transmission. One side of one sprocket 1 41 is coaxially connected to the sprocket 2 412. Guide wheels 49 are provided on both sides of the middle sprocket 1 41. The driving mechanism 5 drives the sprocket 2 412 to rotate. The fixed gear 2 42 is fixedly arranged inside the cover 1 21. A transmission shaft 411 is provided on the other side of the sprocket 1 41. The transmission shaft 411 passes through the axial through hole of the fixed gear 2 42 and is connected to one end point of the tripod 43. The other end point of the tripod 43 is rotatably provided with a swing arm 1 46, and the end of the swing arm 1 46 is connected to the swing arm 47.

[0041] Working principle of the slag scraping operation mechanism 4: the driving mechanism 5 drives the sprocket 2 412 to rotate, which drives the sprocket 1 41 to rotate. Through the chain transmission, the sprockets 41 of multiple slag scraping operation mechanisms 4 rotate synchronously. Through the guide wheel 49, the meshing point of the sprocket 1 41 in the middle is increased. The sprocket 1 41 drives the tripod 43 to rotate through the transmission shaft 411. The swing arm 1 46 at the end of the tripod 43 drives the swing arm 47 to swing, and the slag is pushed backward through the slag scraping plate 48 to achieve the slag scraping effect.

[0042] Combined with attachment Figure 5 , Attachment Figure 7 , Attachment Figure 8 and attached Figure 9 As shown, the two end points of the tripod 43 are rotatably provided with a transmission gear 44 and an adjusting gear 45, the adjusting gear 45 is connected to the connecting shaft at the end of the swing arm 1 46, the transmission gear 44 is respectively engaged with the fixed gear 2 42 and the adjusting gear 45, the number of teeth and the tooth pitch of the fixed gear 2 42 and the adjusting gear 45 are equal, the swing arm 47 includes two swing arms 2 471, a slider 1 472 and a slider 2 473, the top of the slag plate 48 is rotatably connected to the ends of the two swing arms 2 471, and the slag plate 4 8 A gravity rod 481 is provided at the bottom, and a fixed shaft 461 is provided at the end of the swing arm 1 46. The fixed shaft 461 is rotatably matched with the slider 1 472. The distance between the rotation axis of the swing arm 1 46 and the axis of the fixed shaft 461 is equal to the distance between the axis of the adjusting gear 45 and the axis of the fixed gear 2 42. The fixed shaft 461 is connected to one of the swing arms 2 471, and the end of the other swing arm 2 471 is rotatably connected to the slider 2 473. The slider 1 472 and the slider 2 473 are respectively slidably provided in the slide grooves at both ends of the inner side of the cover 1 21.

[0043] The working principle of the rotation of the swing arm 47 in the slag scraping operation mechanism 4 is as follows: during the rotation of the tripod 43, the transmission gear 44 and the adjusting gear 45 are driven to rotate around the axis of the fixed gear 2 42. During the rotation, the transmission gear 44 is meshed with the fixed gear 2 42 and the adjusting gear 45 respectively to transmit the transmission, so that the adjusting gear 45 rotates. Since the number of teeth and the tooth pitch of the fixed gear 2 42 and the adjusting gear 45 are equal, when the adjusting gear 45 rotates one circle, it also rotates one circle in the opposite direction. The rotation of the adjusting gear 45 will drive the swing arm 1 46 to rotate around the axis of the adjusting gear 45. The distance between the rotation axis of the swing arm 1 46 and the axis of the fixed shaft 461 is equal to the distance between the axis of the adjusting gear 45 and the fixed gear 2 42, so that the swing arm 1 46 drives the slider 1 472 to perform a reciprocating swing action on the inner slide groove of the cover 1 21. At the same time, the rotation of the swing arm 1 46 drives the swing arm 2 471 to rotate, so that the rotation axis point of the slag scraping plate 48 presents an elliptical trajectory.

[0044] like Figure 9 In the figure, A is the rotation trajectory of the axis of the adjusting gear 45, B is the motion trajectory of the rotation axis of the scraper plate 48, and C is the swing trajectory of the slider 1 472 and the slider 2 473. When the tripod 43 rotates clockwise, the adjusting gear 45 rotates counterclockwise, the swing arm 1 46 and the swing arm 2 471 rotate, the slider 1 472 moves to the left, and the scraper plate 48 moves to the left synchronously. The gravity rod 481 is used to keep the scraper plate 48 in a vertical state during movement, moving from the right to the left. After reaching the left end point, the rotation of the swing arm 1 46 will apply a pulling force to the slider 1 472 through the fixed shaft 461, moving it to the right. During this process, the scraper plate 48 is lifted, and the bottom of the scraper plate 48 leaves the slag surface. After reaching the right end point, the bottom of the scraper plate 48 is reinserted into the slag, pushing the slag to the left.

[0045] Combined with attachment Figure 5 and attached Figure 10 As shown, the driving mechanism 5 includes a motor 51, a reduction gearbox 52, a main driving shaft 56 and a secondary driving shaft 57. The main driving shaft 56 and the secondary driving shaft 57 are respectively rotatably arranged inside the two cover covers 21. The main driving shaft 56 and the secondary driving shaft 57 are respectively matched through a coupling 58. The motor 51 is connected to the reduction gearbox 52. A driving rod 53 is provided at the output end of the reduction gearbox 52. A spline shaft 54 is provided in the spline groove at the end of the driving rod 53. A universal joint 55 is connected between the spline shaft 54 and the main driving shaft 56. Sprocket three 561 and sprocket four 571 are respectively provided on the main driving shaft 56 and the secondary driving shaft 57. The sprocket three 561 and the sprocket four 571 are respectively matched with the sprocket two 412 of the two slag scraping mechanisms 2 through chains.

[0046] Working principle of driving mechanism 5: motor 51 rotates driving rod 53 through reduction gearbox 52, and rotates main driving shaft 56 through transmission of spline shaft 1 54 and universal shaft 55, and drives auxiliary driving shaft 57 to rotate through coupling 58, thereby rotating sprocket three 561 and sprocket four 571, and rotates sprocket two 412 through chain transmission, driving slag scraping operation mechanism 4 to perform slag scraping operation. The design of driving rod 53, spline shaft 1 54 and universal shaft 55 ensures that the transmission structure is not damaged during the rotation of cover 21. Motor 51 can also be installed on cover 21, and the output end of motor 51 is directly connected to main driving shaft 56 or auxiliary driving shaft 57, and a cooling system is added to motor 51.

[0047] Combined with attachment Figure 5 , Attachment Figure 10 and attached Figure 11 As shown, the linkage 58 includes a cylinder 581, a push plate 582 is provided at the output end of the cylinder 581, a spline shaft 2 584 is rotatably provided at one end of the push plate 582, the ends of the main drive shaft 56 and the auxiliary drive shaft 57 are both provided with spline grooves that cooperate with the spline shaft 2 584, and a plug-in platform 583 is provided at the other end of the push plate 582. The plug-in platform 583 is slidably provided in an outer through hole of a cover 21, and the plug-in platform 583 is plugged into the outer through hole of another cover 21.

[0048] Working principle of linkage 58: After the two covers 21 are closed, cylinder 581 pushes push plate 582 forward, so that the inserting platform 583 is inserted into the outer through hole of the other cover 21, on the one hand, the cover 21 is locked, and on the other hand, the axis of the main drive shaft 56 and the auxiliary drive shaft 57 are aligned. Push plate 582 continues to move, so that spline shaft 2 584 is inserted into the spline groove of the main drive shaft 56, thereby realizing the linkage of the slag scraping operation mechanism 4 on the two slag scraping mechanisms 2.

[0049] Combined with attachment Figure 11 , Attachment Figure 14 , Attachment Figure 15 and attached Figure 16 As shown, the slag scooping plate group 6 includes a plurality of slag scooping plates 1 61 and slag scooping plates 2 62, which are arranged at intervals. The slag scooping plates 1 61 and slag scooping plates 2 62 are provided with a baffle 612 on the side close to the slag removal mechanism 2, and a suspension rod 63 is provided on the top. The guide frame 7 includes a fixed slot column 71 fixed to the bottom of the cover 2 31 and a movable slot column 72 that can be lifted and lowered. The cover 2 31 is provided with a hydraulic cylinder 3 73, and the output end of the hydraulic cylinder 3 73 is connected to the movable slot column 72 through the through hole on the cover 2 31. The slag scooping plates 1 61 and slag scooping plates 2 62 are suspended on the fixed slot column 71 and the movable slot column 72 respectively through the suspension rod 63. Below, slot column 1 64 and slot column 2 65 are respectively slidably provided in the fixed slot column 71 and the movable slot column 72, and the slag scooping plate 1 61 and the slag scooping plate 2 62 are respectively connected to slot column 1 64 and slot column 2 65 through the suspension rod 63, and the inner side of slot column 1 64 and slot column 2 65 are provided with a linkage shaft 641, and a linkage rod 66 is provided between adjacent slot columns 1 64 and adjacent slot columns 2 65. Straight slots 661 that slide with the linkage shaft 641 are provided at both ends of the linkage rod 66, and a pushing mechanism 8 is provided at both ends of the cover 2 31 to push the slot column 1 64 and the slot column 2 65 to move, so that the distance between the adjacent slag scooping plates 1 61 and the slag scooping plates 2 62 is reduced.

[0050] Working principle of slag plate group 6: before slag plate group 6 is immersed in aluminum liquid, the distance between adjacent slag plate 1 61 and slag plate 2 62 is increased by pushing mechanism 8, and then hydraulic cylinder 3 73 pushes movable slot column 72 to move, so that slag plate 1 61 and slag plate 2 62 are misaligned, and then hydraulic cylinder 2 32 pushes cover 2 31 to rotate, so that slag plate group 6 is immersed in aluminum liquid. As the gap between slag plate 1 61 and slag plate 2 62 becomes larger, slag can flow from the gap to the top of slag plate group 6, avoiding the slag being pressed under the slag plate group 6. After the slag removal operation mechanism 4 pushes the slag to the top of slag plate group 6, The movable trough column 72 is reset, and the distance between the slag scoop plate 1 61 and the slag scoop plate 2 62 is reduced through the pushing mechanism 8. There is still a gap between the slag scoop plate 1 61 and the slag scoop plate 2 62, so that the baffles 612 are adjacent and aligned. Then the cover 2 31 rotates to rotate and lift the slag plate group 6. The baffle 612 first extends out of the surface of the aluminum liquid to prevent the slag from flowing back. Then the slag plate group 6 extends out of the surface of the aluminum liquid as a whole. The slag is lifted by the slag plate group 6, and the aluminum liquid flows down through the gap between the slag scoop plate 1 61 and the slag scoop plate 2 62. The cover 2 31 continues to rotate to pour the slag from the inclined slag plate group 6 onto the discharge platform 33, completing the slag removal work.

[0051] Combined with attachment Figure 14 , Attachment Figure 16 and attached Figure 17As shown, the pushing mechanism 8 includes a hydraulic cylinder four 81 arranged on the cover cover two 31, and a pushing rack 82 is provided at the output end of the hydraulic cylinder four 81, and a pushing column one 83 and a pushing column two 84 are provided on the pushing rack 82, and the pushing column one 83 and the pushing column two 84 extend into the fixed slot column 71 and the movable slot column 72 respectively, and the end of the pushing column one 83 is connected to the outermost slot column one 64 inside the fixed slot column 71, and the end of the pushing column two 84 contacts and cooperates with the outermost slot column two 65 inside the movable slot column 72, and a side pushing plate 85 is provided at the bottom of the pushing rack 82, and a limit block one 642 and a limit block two 643 are provided on one side of the outermost linkage rod 66 inside the fixed slot column 71, and a linkage block 651 that cooperates with the limit block one 642 and the limit block two 643 is provided on one side of the outermost linkage rod 66 inside the movable slot column 72, and a top block 611 is provided on both sides of the slag scooping plate one 61 and the slag scooping plate two 62.

[0052] The working principle of the pushing mechanism 8 is as follows: adjacent slot columns 1 64 or adjacent slot columns 2 65 are connected by a linkage rod 66. When the distance between the slag scooping plate 1 61 and the slag scooping plate 2 62 needs to be increased, the hydraulic cylinder 4 81 moves the pushing frame 82 away from the cover 2 31, and the two pushing columns 1 83 respectively pull the outermost slot column 1 64 outward, and through the linkage rod 66, multiple slot columns 1 64 are moved outward. When the outermost slot column 1 64 moves outward, the limit block 1 642 cooperates with the linkage block 651 to drive the slot column 2 65 to move outward. When the distance between the slag scooping plate 1 61 and the slag scooping plate 2 62 needs to be reduced, the hydraulic cylinder 4 81 The pushing frame 82 is moved close to the cover 31, and the pushing column 83 pushes the slot column 64 to move inward, and the slot column 65 is pushed inward by the limit block 643 and the pushing column 84. At this time, the linkage rod 66 is hidden in the slot column 1 64 or the slot column 2 65, and the inner slot column 1 64 moves under the push of the outer slot column 1 64, and the slot column 2 65 does the same. Finally, the top blocks 611 of the adjacent slag scooping plates 1 61 and 2 slag scooping plates 62 contact, the adjacent slot columns 1 64 or the adjacent slot columns 2 65 contact, the adjacent baffles 612 contact, and the side push plate 85 contacts the outer baffle 612 and the top block 611 to form a bucket-shaped structure.

[0053] Combined with attachment Figure 12 and attached Figure 13 As shown, a curved platform 331 is provided on one side of the discharge platform 33, and the lower half of the curved platform 331 is provided in the electrolytic cell 02. During the rotation of the slag scooping plate 1 61 and the slag scooping plate 2 62, the ends of the slag scooping plate 1 61 and the slag scooping plate 2 62 close to the curved platform 331 maintain a certain gap with the curved platform 331. A discharge inclined platform 332 is provided on the top of the discharge platform 33, and a heat insulation plate 311 in contact with the discharge inclined platform 332 is provided at the rear end of the cover 2 31.

[0054] Working principle of the discharge platform 33: When the slag plate group 6 rotates with the cover 31, the ends of the slag plate 1 61 and the slag plate 2 62 maintain a certain gap with the arc platform 331 to prevent the slag from falling back onto the aluminum liquid. The aluminum liquid on the slag plate 1 61 and the slag plate 2 62 will flow into the electrolytic cell 02 through the gap. When the ends of the slag plate 1 61 and the slag plate 2 62 move to the position of the discharge inclined platform 332, the slag plate group 6 is in an inclined state, and the gap between the insulation plate 311 and the discharge inclined platform 332 becomes larger, causing the slag to fall from the slag plate 1 61 and the slag plate 2 62 onto the discharge inclined platform 332 and flow out along the discharge inclined platform 332.

[0055] During the specific implementation of the present invention, when the electrolytic cathode 04 and the electrolytic anode 05 are electrolyzing alumina, the slag scraping mechanism 2 and the slag scooping mechanism 3 are lifted up against the furnace wall 01 and are blocked inside the slag scraping mechanism 2 and the slag scooping mechanism 3 by the heat insulation cage. After the electrolysis process is completed, the furnace door is opened, the electrolytic anode 05 is lifted up and the heat insulation cage is taken out. Then, the hydraulic cylinder 1 23 drives the cover 1 21 to move down and fall onto the floor 03 around the electrolytic cell 02, and the hydraulic cylinder 2 32 drives the cover 2 31 to move down and fall onto the floor around the electrolytic cell 02. 03, close the two cover covers 1 21 and cover cover 2 31 to cover the top of the electrolytic cell 02 to slow down heat loss. Driven by the driving mechanism 5, the slag on the surface of the aluminum liquid is pushed to the top of the slag scooping plate group 6 through the slag scooping operation mechanism 4 of the slag scooping mechanism 2. Then the slag scooping plate group 6 is closed, and the slag scooping mechanism 3 is lifted to scoop out the slag from the surface of the aluminum liquid and poured out by the discharge platform 33. The power mechanisms of the slag scooping mechanism 2 and the slag scooping mechanism 3 are equipped with a cooling system, and the inner surfaces of the cover covers 1 21 and the cover cover 2 31 adopt a heat insulation structure.

[0056] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A furnace cleaning and slag removal device for electrolytic aluminum processing, comprising a cleaning device (1), characterized in that: The cleaning device (1) includes a slag scraping mechanism (2) and a slag scooping mechanism (3). The slag scraping mechanism (2) is symmetrically provided with two slag scraping mechanisms (2). The slag scraping mechanism (2) includes a cover (21) and a hydraulic cylinder (23) hingedly provided in the electrolytic furnace (00). The output end of the hydraulic cylinder (23) is hingedly provided with the cover (21). The cover (21) is provided with a liquid extraction guide hole (22). The bottom inner side of the slag scraping mechanism (2) is provided with a plurality of slag scraping operation mechanisms (4). The slag scraping operation mechanism (4) includes a swing arm (47) whose action end moves in an elliptical trajectory. The swing arm (47) is provided with a slag scraping plate ( 48), a driving mechanism (5) for driving the slag scraping mechanism (4) is provided outside the electrolytic furnace (00), the slag scraping mechanism (3) comprises a cover 2 (31) and a hydraulic cylinder 2 (32) hingedly arranged inside the electrolytic furnace (00), the output end of the hydraulic cylinder 2 (32) is hingedly connected to the cover 2 (31), a slag scraping plate group (6) and a guide frame (7) are provided at the bottom of the cover 2 (31), the guide frame (7) is provided inside the cover 2 (31), the slag scraping plate group (6) is movably provided below the guide frame (7), and the slag scraping mechanism (3) also comprises a discharge platform (33) provided at the rear side of the electrolytic furnace (00); During cleaning, two covers (1) (21) and (2) (31) cover the top of the electrolytic cell (02), and the slag on the surface of the aluminum liquid is pushed from the front side of the electrolytic furnace (00) to the slag plate assembly (6) through the slag removal plate (48) of the slag removal operation mechanism (4). When the cover (2) (31) rotates, the slag plate assembly (6) is driven to rotate, so that the slag on the slag plate assembly (6) is lifted and dumped onto the discharge platform (33); The slag scooping plate group (6) includes a plurality of slag scooping plates (61) and slag scooping plates (62), which are arranged at intervals and each of which is provided with a suspension rod (63) on the top. The guide frame (7) includes a fixed slot column (71) fixed to the bottom of the cover (31) and a movable slot column (72) that can be lifted and lowered. The slag scooping plate (61) and the slag scooping plate (62) are suspended below the fixed slot column (71) and the movable slot column (72) respectively through the suspension rod (63). A slot column 1 (64) and a slot column 2 (65) are slidably provided in the fixed slot column (71) and the movable slot column (72), respectively. The slag scooping plate 1 (61) and the slag scooping plate 2 (62) are connected to the slot column 1 (64) and the slot column 2 (65) respectively through a suspension rod (63). A linkage shaft (641) is provided on the inner side of each slot column 1 (64) and the slot column 2 (65). A linkage rod (66) is provided between adjacent slot columns 1 (64) and adjacent slot columns 2 (65). Both ends of the linkage rod (66) are provided with straight slots (661) that are slidably matched with the linkage shaft (641). Both ends of the cover 2 (31) are provided with a pushing mechanism (8) that pushes the slot column 1 (64) and the slot column 2 (65) to move, so that the distance between the adjacent slag scooping plates 1 (61) and the slag scooping plates 2 (62) is reduced.

2. The furnace cleaning and slag removal device for electrolytic aluminum processing according to claim 1, characterized in that: The scraping operation mechanism (4) includes a sprocket one (41), a fixed gear two (42) and a tripod (43). The sprockets one (41) of the multiple groups of scraping operation mechanisms (4) are matched through chain transmission. One side of one sprocket one (41) is coaxially connected to the sprocket two (412). The driving mechanism (5) drives the sprocket two (412) to rotate. The fixed gear two (42) is fixedly arranged inside the cover one (21). The other side of the sprocket one (41) is provided with a transmission shaft (411). The transmission shaft (411) passes through the axial through hole of the fixed gear two (42) and is connected to one end point of the tripod (43). The other end point of the tripod (43) is rotatably provided with a swing arm one (46). The end of the swing arm one (46) is connected to the swing arm (47).

3. The furnace cleaning and slag removal device for electrolytic aluminum processing according to claim 2, characterized in that: The tripod (43) is provided with a transmission gear (44) and an adjustment gear (45) at two end points thereof. The adjustment gear (45) is connected to a connecting shaft at the end of the first swing arm (46). The transmission gear (44) is respectively engaged with the second fixed gear (42) and the adjustment gear (45). The number of teeth and the tooth pitch of the second fixed gear (42) and the adjustment gear (45) are equal.

4. The furnace cleaning and slag removal device for electrolytic aluminum processing according to claim 3, characterized in that: The swing arm (47) includes two swing arms (471), a slider (472) and a slider (473). The top of the scraping plate (48) is rotatably connected to the ends of the two swing arms (471). The bottom of the scraping plate (48) is provided with a gravity rod (481). The end of the swing arm (46) is provided with a fixed shaft (461). The fixed shaft (461) is rotatably matched with the slider (472) and is connected to one of the swing arms (471). The end of the other swing arm (471) is rotatably connected to the slider (473). The slider (472) and the slider (473) are respectively slidably arranged in the slide grooves at both ends of the inner side of the cover (21).

5. The furnace cleaning and slag removal device for electrolytic aluminum processing according to claim 1, characterized in that: The slag scooping plate 1 (61) and the slag scooping plate 2 (62) are provided with a baffle (612) on one side close to the slag scraping mechanism (2), and the cover 2 (31) is provided with a hydraulic cylinder 3 (73), and the output end of the hydraulic cylinder 3 (73) passes through the through hole on the cover 2 (31) and is connected to the movable slot column (72).

6. The furnace cleaning and slag removal device for electrolytic aluminum processing according to claim 1, characterized in that: The pushing mechanism (8) includes a hydraulic cylinder four (81) provided on the cover two (31), a pushing frame (82) provided at the output end of the hydraulic cylinder four (81), a pushing column one (83) and a pushing column two (84) provided on the pushing frame (82), the pushing column one (83) and the pushing column two (84) respectively extending into the fixed slot column (71) and the movable slot column (72), the end of the pushing column one (83) being connected to the outermost slot column one (64) inside the fixed slot column (71), the end of the pushing column two (84) being in contact with the outermost slot column two (65) inside the movable slot column (72), and a side pushing plate (85) being provided at the bottom of the pushing frame (82).

7. The furnace cleaning and slag removal device for electrolytic aluminum processing according to claim 6, characterized in that: A first limiting block (642) and a second limiting block (643) are provided on one side of the outermost linkage rod (66) inside the fixed slot column (71), and a linkage block (651) that cooperates with the first limiting block (642) and the second limiting block (643) is provided on one side of the outermost linkage rod (66) inside the movable slot column (72).

8. The furnace cleaning and slag removal device for electrolytic aluminum processing according to claim 1, characterized in that: A curved platform (331) is provided on one side of the discharge platform (33), and the lower half of the curved platform (331) is provided in the electrolytic cell (02). During the rotation of the slag scooping plate 1 (61) and the slag scooping plate 2 (62), the ends of the slag scooping plate 1 (61) and the slag scooping plate 2 (62) close to the curved platform (331) maintain a certain gap with the curved platform (331). A discharge inclined platform (332) is provided on the top of the discharge platform (33), and a heat insulation plate (311) in contact with the discharge inclined platform (332) is provided at the rear end of the cover 2 (31).

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