High-temperature-resistant slagging mechanism

Abstract

The utility model discloses a kind of high-temperature-resistant slagging-off mechanisms, including slagging-off beam frame, the front end of slagging-off beam frame is fixed with the closed seat body with internal cavity, the inner surface of closed seat body is equipped with heat insulation layer, rotatable mounting is carried out in closed seat body with the horizontal swingable rotating shaft frame, the rotating shaft top end and rotating shaft bottom end of rotating shaft frame respectively extend outside closed seat body, rotatable mounting is carried out in the rotating shaft bottom end of rotating shaft frame with the up-down swingable slagging-off harrow, the rear end of slagging-off beam frame is installed with lifting power device and swing power device;The device is by power device rear, so that power device does not enter to heat preservation furnace when slagging-off operation, simultaneously, closed seat body with sealing effect and heat insulation effect is equipped in key connection position, bearing, chain, sprocket etc. Realize the transmission component swinged, all are coated inside, avoid dross aluminum liquid splashing and high temperature influence the normal use of transmission component, improve the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of slag removal, and in particular to a high-temperature resistant slag removal mechanism. Background Technology

[0002] Currently, cleaning the slag on the surface of molten aluminum in the holding furnace requires a dedicated slag-removing station, staffed by specialized personnel using slag rakes. This manual slag removal is in a harsh working environment, with workers exposed to high temperatures, heat radiation, and dust for extended periods, resulting in high labor intensity. In the event of a furnace explosion, molten aluminum splashes, posing even greater danger to operators. Consequently, more and more people are refusing this work, leading to recruitment difficulties, high staff turnover, and continuously increasing labor costs. Furthermore, manual slag removal is inefficient, and the quality is greatly affected by human factors, resulting in inconsistent product quality, scrap, and economic losses. Therefore, considering the environmental factors of slag removal operations, developing suitable automated equipment to replace manual slag removal is a pressing problem that needs to be solved in this industry.

[0003] For large holding furnaces, only long intelligent slag-removing robots can be used to fully extend into the furnace body. However, for such long slag-removing robots, in order to facilitate the adjustment of slag-removing height and angle, the slag-removing rake at the front end needs to be adjusted using a power unit. However, the temperature inside the holding furnace is above 750℃, and the power unit cannot be extended into the furnace, otherwise its service life will be short and it will not be able to be used normally. In addition, due to the harsh environment during slag removal, molten aluminum will splash randomly, and if molten aluminum splashes onto the power unit or transmission device, it will affect the use. Therefore, finding a suitable solution for this type of high-temperature holding furnace has become an urgent problem to be solved in this industry. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a high-temperature resistant slag removal mechanism with a reasonable structural arrangement that is suitable for high-temperature holding furnaces.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a high-temperature resistant slag-removing mechanism, including a slag-removing beam frame. A closed seat with an internal cavity is fixed to the front end of the slag-removing beam frame. A heat-insulating layer is provided on the inner surface of the closed seat. A horizontally swingable rotating shaft frame is rotatably mounted inside the closed seat. The top and bottom ends of the rotating shaft frame extend out of the closed seat. A vertically swingable slag-removing rake is rotatably mounted at the bottom end of the rotating shaft frame. A wire rope guide is fixed to the top end of the rotating shaft frame, and the wire rope guide extends forward above the slag-removing rake.

[0006] The rear end of the slag removal beam is equipped with a lifting power device, and the output end of the lifting power device is connected to a lifting steel wire rope. The lifting steel wire rope passes forward through the steel wire rope guide and is connected downward to the front of the slag removal rake.

[0007] The rear end of the slag removal beam is equipped with a swing power device, and a horizontally arranged shaft sprocket is installed on the outer periphery of the rotating shaft frame located in the closed seat. The swing power device enters the closed seat through a chain and is connected to the shaft sprocket for transmission.

[0008] As a preferred technical solution, the enclosed seat body includes a fixed body and a detachable split body. The fixed body includes a fixed upright plate, a top plate at the top end, and a bottom plate at the bottom end. The split body, the fixed upright plate, the top plate, and the bottom end together form the enclosed seat body.

[0009] As a preferred technical solution, the top of the rotating shaft frame is provided with a reversing guide for the lifting steel wire rope to pass through, and the reversing guide corresponds to the rotation axis of the rotating shaft frame.

[0010] As a preferred technical solution, the reversing guide is a reversing guide block fixed on the rotating shaft of the rotating shaft frame. The reversing guide block has a wire rope channel in the middle to limit the lifting wire rope. The height of the wire rope channel corresponds to that of the wire rope guide. A tapered guide surface is provided on the reversing guide block in front of the wire rope channel.

[0011] As a preferred technical solution, the lifting power device includes a geared motor, the output end of which is connected to a take-up and unwinding reel, and one end of the lifting wire rope is wound around the take-up and unwinding reel.

[0012] As a preferred technical solution, the swing power device includes a second geared motor, the output shaft of which is equipped with a drive sprocket, and the chain drive is connected between the drive sprocket and the second shaft frame sprocket.

[0013] As a preferred technical solution, a guide rail is fixed on the slag removal beam, the second reduction motor is fixed on the guide slider, and the guide slider is slidably installed on the guide rail along the length of the chain.

[0014] As a preferred technical solution, a tension spring is connected between the guide slider and the slag removal beam.

[0015] As a preferred technical solution, the slag removal beam is provided with a chain guard or chain cover that facilitates the passage of the chain.

[0016] The beneficial effects of this utility model due to the adoption of the above technical solution are as follows: By placing the power unit at the rear, the power unit will not enter the holding furnace during slag removal operations. At the same time, a closed seat with sealing and heat insulation effects is provided at key connection positions, which encloses the transmission components such as bearings, chains, and sprockets that realize the swing, avoiding splashing of molten aluminum slag and high temperature affecting the normal use of transmission components, thus improving the service life of the equipment. In addition, since the slag rake needs to rotate and lift, in order to avoid interference between rotation and lifting, the top and bottom ends of the rotating shaft frame are cleverly extended outside the closed seat. The lifting component is designed, and the lifting control is made by utilizing the characteristic that the wire rope is less affected by high temperature. The wire rope will not be affected by high temperature when it enters the holding furnace, which can extend the service life of the equipment. It is well applicable to the field of slag removal in high temperature holding furnaces. Attached Figure Description

[0017] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a partial structural diagram of the front end of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the enclosed seat body according to an embodiment of the present invention;

[0021] Figure 4 This is a partial structural diagram of the rear end of an embodiment of the present utility model;

[0022] Figure 5 This is a structural schematic diagram of the rear end of an embodiment of the present invention from another angle;

[0023] Figure 6 This is an enlarged schematic diagram of the reversing guide of an embodiment of this utility model;

[0024] In the diagram: 1-Slag removal beam; 2-Enclosed seat; 3-Rotating shaft frame; 4-Slag removal rake; 5-Lifting wire rope; 6-Wire rope guide; 7-Reduction motor one; 8-Rewinding reel; 9-Reversing guide; 9a-Wire rope channel; 9b-Conical guide surface; 10-Shaft frame sprocket; 11-Chain; 12-Reduction motor two; 13-Drive sprocket; 14-Guide slide rail; 15-Guide slider; 16-Tension spring; 17-Chain protective tube. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0026] like Figures 1 to 5 As shown, a high-temperature resistant slag-removing mechanism includes a slag-removing beam frame 1. A closed seat 2 with an internal cavity is fixed to the front end of the slag-removing beam frame 1. The inner surface of the closed seat 2 is provided with a heat insulation layer. A horizontally swingable rotating shaft frame 3 is rotatably mounted inside the closed seat 2. The rotating shaft frame 3 is rotatably connected to the closed seat 2 via bearings. The top and bottom ends of the rotating shaft of the rotating shaft frame 3 extend outside the closed seat 2 and are respectively fixed with an auxiliary top plate and an auxiliary bottom plate. A slag-removing rake 4, which can swing up and down, is rotatably mounted at the bottom end of the rotating shaft of the rotating shaft frame 3. The slag-removing beam frame 1 is provided with a swinging power device to control the rotation of the rotating shaft frame 3 and cause the slag-removing rake 4 to swing left and right. The slag-removing beam frame 1 is also provided with a lifting power device to control the up and down swing of the slag-removing rake 4 relative to the rotating shaft frame 3. The swinging power device and the lifting power device are located on the seat at the rear end of the slag-removing beam frame 1, away from the front slag-removing rake 4, and will not enter the interior of the heat-preserving furnace.

[0027] The insulation layer can be an insulation coating applied to the inner surface of the enclosed base 2, such as an inorganic insulation coating made from silica and alumina; or it can be an insulation board pasted or fixed to the inner surface of the enclosed base 2, such as a foam board, mineral wool, or fiberboard with insulation properties. Of course, the insulation layer can also be a combination of an insulation coating and an insulation board.

[0028] The enclosed seat 2 includes a fixed body and a detachable split body. Both the fixed body and the detachable split body are equipped with a heat insulation layer for heat insulation and protection of the internal structure. The fixed body includes a fixed upright plate, a top plate at the top, and a bottom plate at the bottom. The detachable split body, the fixed upright plate, the top plate, and the bottom plate together form the enclosed seat 2. The fixed upright plate is used to fix the enclosed seat 2 to the slag removal beam frame 1. The top plate and the bottom plate are used to cooperate in installing the rotating shaft frame 3. The split body is a detachable outer cover, which facilitates maintenance inside the enclosed seat 2. The enclosed seat 2 has a cavity inside, which places the transmission components inside the enclosed space. This not only prevents dust and slag from entering, but also provides sealing and heat insulation, preventing damage to components and extending their service life. The enclosed seat 2 also ensures the service life of the bearings used on the rotating shaft frame 3.

[0029] A lifting power device is installed at the rear end of the slag removal beam 1. The output end of the lifting power device is connected to a lifting wire rope 5. A wire rope guide 6 is fixed to the top of the rotating shaft of the rotating shaft frame 3. The wire rope guide 6 extends horizontally forward above the slag removal rake 4. The lifting wire rope 5 passes forward through the wire rope guide 6 and extends downward in a ring from the front end through a pin sleeve or guide wheel, connecting to the front part of the slag removal rake 4. In this embodiment, the wire rope guide 6 is a hollow wire rope conduit. The bottom end of the wire rope guide is also provided with an auxiliary support leg, which is fixed to the bottom end of the rotating shaft of the rotating shaft frame 3.

[0030] See Figure 4 The lifting power device includes a geared motor 7, the output end of which is connected to a winding reel 8. One end of the lifting wire rope 5 is wound around the winding reel 8. Both the geared motor 7 and the winding reel 8 are located at the rear end of the slag removal beam 1. During slag removal operations, it is not necessary to enter the holding furnace. Wire rope is used as the transmission component. Although part of the wire rope needs to enter the holding furnace, due to the high strength and low susceptibility to high temperatures inherent in the wire rope, the high temperature of the holding furnace will not affect the service life of the wire rope.

[0031] The wire rope guide 6 extends forward along the length of the slag removal beam 1 and is fixed to the rotating shaft frame. The wire rope guide 6 has two advantages: First, the wire rope guide 6 can guide and support the lifting wire rope 5, allowing the front end of the lifting wire rope 5 to extend forward smoothly. Compared with the connection method where the wire rope is directly connected to the front of the slag removal rake 4, the extension and guidance using the wire rope guide 6 can ensure a larger angle adjustment range of the slag removal rake 4. Second, the wire rope guide 6 is fixedly connected to the rotating shaft frame. Therefore, when the rotating shaft frame rotates, the wire rope guide 6 will cause the lifting wire rope 5 to rotate left and right accordingly. When the lifting wire rope 5 bends and swings left and right, its wire rope length remains basically unchanged, which does not affect the lifting height of the slag removal rake 4, resulting in better performance. Of course, a wire rope guide rod can be used to replace the wire rope conduit. Several wire rope loops are provided on the surface of the wire rope guide rod. The lifting wire rope 5 passes through several wire rope loops in sequence. The several wire rope loops cooperate to guide and limit the lifting wire rope 5.

[0032] See Figure 6The top of the rotating shaft frame 3 is provided with a reversing guide 9 for the lifting wire rope 5 to pass through. The reversing guide 9 corresponds to the rotation axis of the rotating shaft frame 3. The reversing guide 9 is a reversing guide block fixed on the rotation axis of the rotating shaft frame 3. The middle part of the reversing guide block has a wire rope channel 9a for limiting the lifting wire rope 5. The height of the wire rope channel 9a corresponds to that of the wire rope guide 6, and the diameter of the wire rope channel 9a is slightly larger than the diameter of the lifting wire rope 5 to ensure the stability of the wire rope position. However, in order to avoid excessive friction between the wire rope and the reversing guide block when the lifting wire rope 5 bends, the reversing guide block has an outwardly expanding conical guide surface 9b on the front side of the wire rope channel 9a. The lifting wire rope 5 is fitted inside the reversing guide block. When the rotating frame rotates, the lifting wire rope 5 is limited by the reversing guide block. Therefore, the lifting wire rope 5 will bend and change direction through the reversing guide block. This is equivalent to the lifting wire rope 5 rotating around the rotation axis of the rotating frame. This ensures that when the rotating frame rotates, the lifting wire rope 5 can bend and swing left and right, and its length remains basically unchanged. This does not affect the lifting height of the slag rake 4, resulting in better performance.

[0033] The top and bottom ends of the rotating shaft of the rotating shaft frame 3 are respectively fixed with an auxiliary top plate and an auxiliary bottom plate. The auxiliary bottom plate is used to connect the slag rake 4, and the auxiliary top plate is used to connect the wire rope guide and the reversing guide.

[0034] See Figures 3 to 5 The rear end of the slag removal beam 1 is equipped with a swing power device, and a horizontally arranged shaft sprocket 10 is installed on the outer periphery of the rotating shaft 3 located in the closed seat 2. The swing power device enters the closed seat 2 through the chain 11 and is connected to the shaft sprocket 10 for transmission.

[0035] The oscillating power device includes a second geared motor 12, the output shaft of which is equipped with a drive sprocket 13. The chain 11 is driven between the drive sprocket 13 and the second shaft frame sprocket 10. The second geared motor 12 is located at the rear end of the slag removal beam 1, eliminating the need to enter the holding furnace during slag removal operations. Long-distance power transmission is achieved using the sprocket and chain 11. The shaft frame sprocket 10 and the chain 11 driving the sprocket are arranged inside the enclosed base 2. This utilizes the heat insulation function of the enclosed base 2 to reduce the impact of heat on the sprocket and chain 11, and also prevents slag and molten aluminum from affecting the chain 11 transmission, thus improving the service life of the sprocket and chain 11.

[0036] Due to the high temperature inside the furnace, and considering that the chain 11 will expand after being heated, it will become loose, affecting power transmission. To solve this problem, this embodiment has made further design improvements. A guide rail 14 is fixed on the slag removal beam 1, and the second reduction motor 12 is fixed on the guide slider 15. The guide slider 15 is slidably mounted on the guide rail 14 along the length of the chain 11, which can drive the drive sprocket 13 to slide towards the side away from the shaft frame sprocket 10. A tension spring 16 is connected between the guide slider 15 and the slag removal beam 1.

[0037] This device utilizes the elastic deformation force of a spring to adapt to changes in the tension of the chain 11, and uses a tension spring 16 to pull the chain 11 to maintain a taut state. Furthermore, the elastic tensioning structure is located at the rear end of the slag-removing beam frame 1. Multiple threaded holes at different positions can be provided on the base at the rear end of the slag-removing beam frame 1. The other end of the tension spring 16 is fixed to one of these threaded holes using a ring bolt, and the threaded hole position can be selected according to the tension requirements of the chain 11.

[0038] The slag removal beam 1 is provided with a chain guard 17 or chain cover to facilitate the passage of the chain 11, which is used to protect the chain 11 and prevent slag and molten aluminum from affecting the service life of the chain 11. At the same time, an insulation layer can be set inside the chain guard 17 to provide heat insulation protection for the chain 11.

[0039] The slag rake 4 includes a rake rod that is rotatably mounted on the rotating shaft frame. The front end of the rake rod is fixed with a downwardly vertical slag-removing plate, which is the main component for rake the floating slag.

[0040] Gear motor 17 and gear motor 212 can be equipped with worm gear reducers, which have a self-locking function.

[0041] The working principle of this embodiment is as follows:

[0042] The slag removal beam frame of this device can be installed on a traveling trolley. Before the slag removal operation, the slag removal rake 4 does not swing and is raised to approximately the same height as the slag removal beam frame 1, so that it can be extended into the interior of the heat preservation furnace through the furnace opening. The front part of the slag removal rake 4 and the slag removal beam frame 1 are completely inside the heat preservation furnace, and the rear part of the slag removal beam frame 1 is completely outside the heat preservation furnace.

[0043] When adjusting the height, the geared motor 7 controls the rotation of the take-up and unwind reel 8, releasing the lifting wire rope 5. The slag rake 4 swings down naturally under gravity, allowing the front end of the slag rake 4 to descend. When the geared motor 7 controls the take-up and unwind reel 8 to rotate in the opposite direction, the lifting wire rope 5 is retracted, pulling the slag rake 4 upward, allowing the front end of the slag rake 4 to rise. When adjusting the angle, the geared motor 12 activates, causing the shaft frame sprocket 10 to rotate via the drive sprocket 13 and chain 11, which in turn rotates the rotating shaft frame 3, causing the slag rake 4 to swing left and right. At this time, the reversing guide 9 and the wire rope guide 6 work together to limit the lifting wire rope 5, ensuring that the lifting wire rope 5 swings along with the rotating shaft frame 3 without affecting the vertical height of the slag rake 4. The vertical adjustment and the left and right angle adjustment of the slag rake 4 do not interfere with each other.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant slag removal mechanism, characterized in that: The device includes a slag-removing beam frame, with a closed seat containing an internal cavity fixed to its front end. The inner surface of the closed seat is provided with a heat insulation layer. A horizontally swingable rotating shaft frame is rotatably mounted inside the closed seat. The top and bottom ends of the rotating shaft extend out of the closed seat. A vertically swingable slag-removing rake is rotatably mounted at the bottom end of the rotating shaft. A wire rope guide is fixed to the top end of the rotating shaft, extending forward above the slag-removing rake. The rear end of the slag removal beam is equipped with a lifting power device, and the output end of the lifting power device is connected to a lifting steel wire rope. The lifting steel wire rope passes forward through the steel wire rope guide and is connected downward to the front of the slag removal rake. The rear end of the slag removal beam is equipped with a swing power device, and a horizontally arranged shaft sprocket is installed on the outer periphery of the rotating shaft frame located in the closed seat. The swing power device enters the closed seat through a chain and is connected to the shaft sprocket for transmission.

2. The high-temperature resistant slag removal mechanism as described in claim 1, characterized in that: The enclosed seat includes a fixed body and a detachable split body. The fixed body includes a fixed upright plate, a top plate at the top end, and a bottom plate at the bottom end. The split body, the fixed upright plate, the top plate, and the bottom end together form the enclosed seat.

3. The high-temperature resistant slag removal mechanism as described in claim 1, characterized in that: The top of the rotating shaft frame is provided with a reversing guide for the lifting steel wire rope to pass through, and the reversing guide corresponds to the rotation axis of the rotating shaft frame.

4. The high-temperature resistant slag removal mechanism as described in claim 3, characterized in that: The reversing guide is a reversing guide block fixed on the rotating shaft of the rotating shaft frame. The reversing guide block has a wire rope channel in the middle to limit the lifting wire rope. The height of the wire rope channel corresponds to that of the wire rope guide. A tapered guide surface is provided on the reversing guide block in front of the wire rope channel.

5. The high-temperature resistant slag removal mechanism as described in claim 1, characterized in that: The lifting power device includes a geared motor, the output end of which is connected to a take-up and unwinding reel, and one end of the lifting wire rope is wound around the take-up and unwinding reel.

6. The high-temperature resistant slag removal mechanism as described in claim 1, characterized in that: The swing power device includes a second geared motor, the output shaft of which is equipped with a drive sprocket, and the chain drive is connected between the drive sprocket and the second shaft frame sprocket.

7. The high-temperature resistant slag removal mechanism as described in claim 6, characterized in that: The slag removal beam is fixed with a guide rail, and the second reduction motor is fixed on the guide slider. The guide slider is slidably installed on the guide rail along the length of the chain.

8. The high-temperature resistant slag removal mechanism as described in claim 7, characterized in that: A tension spring is connected between the guide slider and the slag removal beam.

9. The high-temperature resistant slag removal mechanism as described in claim 1, characterized in that: The slag removal beam is equipped with chain guards or chain covers to facilitate the passage of the chain.

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