Intelligent slagging-off device of holding furnace

Abstract

The intelligent slagging-off device comprises a slagging-off long beam frame, the front end of the slagging-off long beam frame is connected with a slagging-off rake through a rotating swing frame, the rotating swing frame is connected to the slagging-off long beam frame in a left-right rotating mode, and a swing power assembly is arranged at the rear end of the slagging-off long beam frame. The swing power assembly can drive the rotary swing frame to rotate left and right through the swing transmission assembly. The slagging-off rake is connected to the rotating swing frame in an up-down rotating mode, and a lifting power assembly for driving the slagging-off rake to rotate up and down is arranged at the rear end of the slagging-off long beam frame. The lifting power assembly is used for achieving automatic up-and-down lifting adjustment of the slagging-off rake, the swing power assembly is used for achieving automatic left-and-right swing adjustment of the slagging-off rake, and the power assemblies are all arranged at the end, away from one side of the slagging-off rake, of the slagging-off long beam frame. The power assemblies are all located outside the heat preservation furnace, normal use of the power assemblies is not affected, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of slag removal equipment, and in particular to an intelligent slag removal device for a heat preservation furnace. 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] Currently, the intelligent slag removal devices for holding furnaces disclosed in existing technologies are mainly used for slag removal in small holding furnaces. They are not suitable for holding furnaces with an internal width of 5m and a depth of 4m or more. The intelligent slag removal device cannot fully extend into the interior, especially when the temperature inside the holding furnace is above 750℃. The power devices, such as motors used to adjust the height and angle, cannot extend into the furnace, otherwise their service life will be short and they will not function properly. Therefore, the reasonable arrangement of the power devices and how to transmit power are very important. Announcement No. CN 214032549 U discloses a slag removal device for a molten iron furnace, which includes a connecting rod, a slag rake, and a rake lifting mechanism. This structure has two problems: First, this slag removal device is only suitable for small holding furnaces. When the length of the slag rake or connecting rod is changed to adapt to a large holding furnace, it is not possible to effectively rotate the slag rake left and right manually. Second, the rake lifting mechanism is driven by a motor, which cannot extend into the holding furnace. Therefore, when the length of the slag rake or connecting rod is long, it is difficult to operate the lifting and rotation of the slag rake. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an intelligent slag removal device for a heat preservation furnace that is reasonably arranged, easy to operate, and suitable for large heat preservation furnaces.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: an intelligent slag removal device for a heat preservation furnace, including a slag removal long beam frame. The front end of the slag removal long beam frame is connected to a slag removal rake via a rotating swing frame. The rotating swing frame is rotatably connected to the slag removal long beam frame. The rear end of the slag removal long beam frame is provided with a swing power component. The swing power component can drive the rotating swing frame to rotate left and right via a swing transmission component. The slag removal rake is rotatably connected to the rotating swing frame. The rear end of the slag removal long beam frame is provided with a lifting power component that drives the slag removal rake to rotate up and down.

[0006] As a preferred technical solution, the swing transmission assembly includes a worm gear and a worm shaft that are coupled in transmission. The worm gear is fixedly installed on the rotating swing frame, and the worm shaft is rotatably installed on the slag-removing long beam frame. The worm shaft is also connected in transmission to the swing power assembly.

[0007] As a preferred technical solution, the swaying power assembly includes a first geared motor located at the rear end of the slag-removing long beam frame, a first sprocket mounted on the output shaft of the first geared motor, a second sprocket mounted on the input end of the swaying transmission assembly, and a chain connecting the first sprocket and the second sprocket.

[0008] As a preferred technical solution, the output shaft of the geared motor is fitted with an external hexagonal pressure cap on the outer surface of the sprocket.

[0009] As a preferred technical solution, the first geared motor is slidably mounted on the slag-removing long beam frame along the length direction of the chain, and a sliding tensioning structure is provided between the first geared motor and the slag-removing long beam frame.

[0010] As a preferred technical solution, the sliding tensioning structure includes a tensioning spring, one end of which is fixedly connected to the slag-removing long beam frame, and the other end of which is connected to the reduction motor.

[0011] As a preferred technical solution, a guide rail is fixed on the slag removal beam, a reduction motor is fixed on the guide slider, the guide slider is slidably installed on the guide rail along the length of the chain, and one end of the sliding tensioning structure is connected to the guide slider.

[0012] As a preferred technical solution, the lifting power assembly includes a linear drive motor installed at the rear end of the slag-removing long beam frame, a sliding seat on the linear drive motor reciprocating along the length direction of the slag-removing long beam frame, a lifting steel wire rope connected to the sliding seat, and the front end of the lifting steel wire rope extending forward and connecting to the front of the slag-removing rake.

[0013] Alternatively, the lifting power assembly may include a second geared motor installed at the rear end of the slag-removing long beam frame. The output end of the second geared motor is connected to a winding reel, and a lifting wire rope is wound on the winding reel. The front end of the lifting wire rope extends forward and connects to the front of the slag-removing rake.

[0014] As a preferred technical solution, the rotating frame is also fixed with an auxiliary support pipe to support the front of the lifting wire rope.

[0015] As a preferred technical solution, the front end of the slag removal beam is provided with a mounting base, the rotating swing frame is rotatably connected to the mounting base via a rotating shaft, and the swing transmission assembly is provided on the mounting base to drive the rotating swing frame to rotate.

[0016] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: the lifting power component is used to realize the automatic up-and-down lifting adjustment of the slag-removing rake, and the swinging power component is used to realize the automatic left-and-right swing adjustment of the slag-removing rake. Both the lifting adjustment and the left-and-right swing adjustment are automatic adjustment methods, which facilitates the automated operation of the slag-removing device; furthermore, the power components are all located at the end of the slag-removing long beam frame on the side away from the slag-removing rake, ensuring that when the slag-removing rake and part of the slag-removing long beam frame are extended into the heat preservation furnace for slag removal operations, the power components are all outside the heat preservation furnace, which does not affect the normal use of the power components and improves the service life of the equipment. 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 schematic diagram of the structure of the swing transmission assembly according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the swing power component and the lifting power component according to an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the swing power component according to an embodiment of the present invention;

[0022] Figure 5 This is a reference diagram showing the usage state of an embodiment of this utility model;

[0023] In the diagram: 1-Slag removal long beam frame; 2-Rotating swing frame; 3-Slag removal rake; 4-Mounting base; 5-Rotating shaft; 6-Worm gear; 7-Worm; 8-Reduction motor one; 9-Sprocket one; 10-Sprocket two; 11-Chain; 12-External hexagonal pressure cover; 13-Guide slide rail; 14-Guide slider; 15-Tension spring; 16-Linear drive motor; 17-Sliding seat; 18-Lifting wire rope; 19-Auxiliary support pipe; 20-Wire rope protective pipe; 21-Insulation furnace. Detailed Implementation

[0024] 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.

[0025] Example 1:

[0026] like Figures 1 to 4 As shown, the intelligent slag removal device for the heat preservation furnace includes a long slag removal beam 1. The front end of the long slag removal beam 1 is connected to a slag removal rake 3 via a rotating swing frame 2. The rotating swing frame 2 is rotatably connected to the long slag removal beam 1. The rear end of the long slag removal beam 1 is equipped with a swinging power component, which drives the rotating swing frame 2 to rotate left and right via a swinging transmission component. The slag removal rake 3 is rotatably connected to the rotating swing frame 2. The rear end of the long slag removal beam 1 is equipped with a lifting power component that drives the slag removal rake 3 to rotate up and down. The intelligent slag removal device for the heat preservation furnace can be installed on a traveling trolley or forklift for moving it away from or near the heat preservation furnace.

[0027] The lifting power component is used to realize the automatic up-and-down lifting adjustment of the slag rake 3, and the swinging power component is used to realize the automatic left-and-right swing adjustment of the slag rake 3. Both the lifting adjustment and the left-and-right swing adjustment are automatic, which facilitates the automated operation of the slag removal device. Furthermore, the power components are all located at the end of the slag removal long beam frame 1 on the side away from the slag rake 3, ensuring that when the slag rake 3 and part of the slag removal long beam frame 1 are extended into the heat preservation furnace for slag removal operations, the power components are all outside the heat preservation furnace 21, which does not affect the normal use of the power components and improves the service life of the equipment.

[0028] In this embodiment, the slag-skimming long beam frame 1 is welded from multiple long support rods to form a long, lightweight beam frame, which meets the requirements of lightweight and high-strength design. It can also extend into the interior of the large holding furnace 21. Furthermore, reinforcing beams or steel bars are provided above the slag-skimming long beam frame 1 to improve the strength of the cantilever beam. Of course, the length of the slag-skimming long beam frame 1 can be designed according to the actual depth of the holding furnace 21.

[0029] The front end of the slag removal beam 1 is fixed with a mounting base 4, which serves as a connecting base. The rotating swing frame 2 is rotatably connected to the mounting base 4 via a rotating shaft 5. The swing transmission assembly is located on the mounting base 4 and drives the rotating shaft 5 to rotate.

[0030] The swing transmission assembly includes a worm gear 6 and a worm 7 that are coupled together. A rotating shaft 5 is fixed on the rotating frame 2, and the rotating shaft 5 is fixedly connected to the worm gear 6. The worm 7 is rotatably mounted on the mounting base 4 of the slag-removing long beam frame 1, and the worm 7 is also connected to the swing power assembly. The coupling of the worm gear 6 and the worm 7 has a self-locking function, ensuring the stability of the left and right angles. Furthermore, since the worm gear 6 and the worm 7 are mechanically driven, their entry into the holding furnace 21 will not be affected.

[0031] The swing power assembly includes a geared motor 8 located at the rear end of the slag-removing long beam frame 1 (the end furthest from the slag-removing rake 3). A sprocket 9 is mounted on the output shaft of the geared motor 8, and a second sprocket 10 is mounted on the worm gear 7. A chain 11 connects the first sprocket 9 and the second sprocket 10. The geared motor 8 is fixed to a fixed plate at the rear end of the slag-removing long beam frame 1. During slag removal operations, the geared motor 8 is located outside the holding furnace 21 and transmits power to the worm gear 7 and worm wheel 6 via the sprocket and chain, thereby achieving the left-right swing of the rotating swing frame 2 and the slag-removing rake 3. The transmission method of the sprocket and chain 11 is more stable, and the mechanical combination is well-suited for the high-temperature holding furnace 21, extending the service life of the equipment.

[0032] If the power is cut off or the geared motor 8 malfunctions and stops during equipment use, the slag rake 3 will be located inside the furnace and swinging to one side, making it difficult for the slag rake to exit directly from the furnace opening. To solve this problem, an external hexagonal pressure cap 12 is installed on the outer surface of the sprocket 9 on the output shaft of the geared motor 8. In the event of an unexpected stop, the angle of the slag rake 3 can be manually adjusted by rotating the sprocket 9 with an extended socket wrench, so that the slag rake 3 returns to the center and can be smoothly exited from the furnace opening.

[0033] The slag removal beam 1 is equipped with a chain guard or chain cover to facilitate the passage of the chain 11, which is used to protect the chain 11.

[0034] Due to the high temperature inside the furnace, the chain 11 expands upon heating, causing it to loosen and affecting power transmission. To address this issue, this embodiment incorporates a further design. The geared motor 8 is slidably mounted on the slag-removing beam 1 along the length of the chain 11. A guide rail 13 is fixed to the slag-removing beam 1, and the geared motor 8 is fixed to a guide slider 14. The guide slider 14 is slidably mounted on the guide rail 13 along the length of the chain 11. A sliding tensioning structure is provided between the geared motor 8 and the slag-removing beam 1. This structure includes a tension spring 15, one end of which is fixedly connected to a threaded hole on the slag-removing beam 1 by a ring bolt, and the other end of which is connected to the guide rail 13. This device utilizes the elastic deformation force of the spring to adapt to changes in the tension of the chain 11, using the tension spring 15 to pull the chain 11 to maintain a taut state. Furthermore, the sliding tensioning structure is located at the rear end of the slag removal beam 1. Multiple threaded holes at different positions can be provided on the mounting base 4. The other end of the tensioning spring 15 is fixed to the threaded hole by an annular bolt. The threaded hole at different positions can be selected according to the tensioning requirements of the chain 11.

[0035] The lifting power assembly includes a linear drive motor 16 installed at the rear end of the slag-removing long beam frame 1. A sliding seat 17 on the linear drive motor 16 slides reciprocally along the length of the slag-removing long beam frame 1. A lifting steel wire rope 18 is connected to the sliding seat 17. The front end of the lifting steel wire rope 18 extends forward and connects to the front of the slag-removing rake 3. The linear drive motor 16 is fixed to a fixed plate at the rear end of the slag-removing long beam frame 1. In use, the sliding seat 17 slides reciprocally along the linear drive motor 16, thereby driving the rear end of the lifting steel wire rope 18 forward or backward, pulling the rear end of the slag-removing rake 3 to rotate up and down around the rotating swing frame 2, thus realizing the raising and lowering of the front end of the slag-removing rake 3 and meeting the slag-removing height adjustment requirements. During slag removal, the linear drive motor 16 is located outside the holding furnace 21 and adjusts the slag-removing rake 3 by pulling the lifting steel wire rope 18. It has a long service life and is well-suited for use in the high-temperature holding furnace 21.

[0036] The steel wire rope used in this application has another feature: when the slag rake 3 moves from inside the heat preservation furnace 21 to the outside and contacts the inclined edge at the furnace opening, as the slag rake 3 gradually moves outward, the inclined edge at the furnace opening lifts the slag rake 3 upward. The slag-scraping plate of the slag rake 3 can always be tightly pressed against the inclined edge. The slag rake 3 rising along the inclined edge will cause the steel wire rope to relax naturally. At this time, the steel wire rope will not affect the angle of the slag rake 3, and the floating slag can be pushed out from the inclined edge well without adjusting the steel wire rope, which is more convenient to use.

[0037] To facilitate the arrangement of the wire rope, an auxiliary support pipe 19 is fixed on the rotating frame 2 to support the front of the lifting wire rope 18. The rear end of the auxiliary support pipe 19 is indirectly fixed to the rotating frame 2 and close to the rotation axis 5 of the rotating frame 2. The front end of the auxiliary support pipe 19 extends forward to the front of the slag rake 3. The front end of the lifting wire rope 18 passes through the interior of the auxiliary support pipe 19 and then extends downward from the front end of the auxiliary support pipe 19 to connect to the top front of the slag rake 3. The auxiliary support pipe 19 can guide and support the lifting wire rope 18, allowing the front end of the lifting wire rope 18 to extend forward smoothly. Compared with the connection method where the wire rope is directly connected to the front of the slag rake 3, using a wire rope guide for extension and guidance can ensure a larger angle adjustment range of the slag rake 3.

[0038] The rear end of the auxiliary support tube 19 is fixedly installed on the surface of the worm gear 6 and can rotate with the worm gear 6.

[0039] The slag removal beam 1 is equipped with a wire rope protective tube 20 or a wire rope cover to guide the lifting wire rope 18 through, which protects the wire rope on the one hand and guides and limits the wire rope on the other.

[0040] The slag rake 3 includes a rake rod that is rotatably mounted on the rotating frame 2, and a slag-removing plate is fixed to the front end of the rake rod.

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

[0042] Before the slag removal operation, the slag rake 3 is not swaying and is raised to approximately the same height as the slag removal beam 1, making it easy to extend into the interior of the holding furnace 21 through the furnace opening. The lifting power motor and the reduction motor 8 are both located outside the holding furnace 21. See the usage status for details. Figure 5 ;

[0043] When adjusting the height, the linear drive motor 16 drives the sliding seat 17 to move back and forth, thereby pulling the rear end of the slag rake 3 to rotate up and down around the rotating frame 2 via the lifting wire rope 18, thus realizing the raising and lowering of the front end of the slag rake 3 to meet the slag removal height adjustment requirements; when adjusting the angle, the reduction motor 8 is activated, causing the worm gear 7 to rotate through the sprocket and chain 11, thereby driving the worm wheel 6 and the rotating frame 2, auxiliary support tube 19, slag rake 3 and other structures fixed to the worm wheel 6 to swing left and right together, in order to adjust the left and right angle of the slag rake 3.

[0044] Example 2:

[0045] The main difference between this embodiment and Embodiment 1 lies in the structure of the lifting power assembly. The lifting power assembly includes a second geared motor, the output of which is connected to a winding reel. A lifting steel wire rope 18 is wound on the winding reel, and the free end of the lifting steel wire rope 18 extends forward along the slag-removing long beam frame 1 and connects to the front of the slag-removing rake 3. The second geared motor is fixed to a fixed plate at the rear end of the slag-removing long beam frame 1. The winding reel is rotatably mounted on the fixed plate at the rear end of the slag-removing long beam frame 1 via a bracket. In use, the second geared motor drives the winding reel to rotate, thereby controlling the winding and unwinding of the lifting steel wire rope 18, pulling the rear end of the slag-removing rake 3 to rotate up and down around the rotating swing frame 2, thus achieving the raising and lowering of the front end of the slag-removing rake 3 to meet the slag-removing height adjustment requirements. During slag removal, the second geared motor is located outside the holding furnace 21 and adjusts the slag-removing rake 3 by pulling the lifting steel wire rope 18. It has a long service life and is well-suited for use in the high-temperature holding furnace 21.

[0046] 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. An intelligent slagging device for holding furnace, characterized in that: The device includes a long beam frame for removing slag, with a slag rake connected to the front end of the beam frame via a rotating swing frame. The rotating swing frame is connected to the long beam frame for left and right rotation. The rear end of the beam frame is equipped with a swing power component, which can drive the rotating swing frame to rotate left and right via a swing transmission component. The slag rake is connected to the rotating swing frame for up and down rotation. The rear end of the beam frame is equipped with a lifting power component that drives the slag rake to rotate up and down.

2. The intelligent slag skimming device for holding furnace according to claim 1, characterized in that: The swing transmission assembly includes a worm gear and a worm shaft that are coupled together. The worm gear is fixedly installed on the rotating swing frame, and the worm shaft is rotatably installed on the slag-removing long beam frame. The worm shaft is also connected to the swing power assembly in a transmission manner.

3. The intelligent slag skimming device of the holding furnace according to claim 1, characterized in that: The swing power assembly includes a geared motor 1 located at the rear end of the slag removal beam frame. A sprocket 1 is mounted on the output shaft of the geared motor 1. A sprocket 2 is mounted on the input end of the swing transmission assembly. A chain is connected between the sprocket 1 and the sprocket 2.

4. The intelligent slag skimming device of the holding furnace according to claim 3, characterized in that: The output shaft of the geared motor is located on the outer surface of the sprocket and is fitted with an external hexagonal pressure cap.

5. The intelligent slag skimming device of the holding furnace according to claim 3, characterized in that: The first geared motor is slidably mounted on the long beam of the slag removal machine along the length of the chain, and a sliding tensioning structure is provided between the first geared motor and the long beam of the slag removal machine.

6. The intelligent slag skimming device of the holding furnace according to claim 5, characterized in that: The sliding tensioning structure includes a tensioning spring, one end of which is fixedly connected to the slag-removing long beam frame, and the other end of which is connected to the reduction motor.

7. The intelligent slag skimming device of the holding furnace according to claim 5, characterized in that: The slag removal beam is fixed with a guide rail, the reduction motor is fixed to the guide slider, the guide slider is slidably mounted on the guide rail along the length of the chain, and one end of the sliding tensioning structure is connected to the guide slider.

8. The intelligent slag skimming device for holding furnace according to claim 1, characterized in that: The lifting power assembly includes a linear drive motor installed at the rear end of the slag removal beam. A sliding seat on the linear drive motor slides back and forth along the length of the slag removal beam. A lifting wire rope is connected to the sliding seat. The front end of the lifting wire rope extends forward and connects to the front of the slag removal rake. Alternatively, the lifting power assembly may include a second geared motor installed at the rear end of the slag-removing long beam frame. The output end of the second geared motor is connected to a winding reel, and a lifting wire rope is wound on the winding reel. The front end of the lifting wire rope extends forward and connects to the front of the slag-removing rake.

9. The intelligent slag skimming device of the holding furnace according to claim 8, characterized in that: The rotating swing frame is also fixed with an auxiliary support pipe that supports the front part of the lifting steel wire rope.

10. The intelligent slag skimming device for holding furnace according to claim 1, characterized in that: The front end of the slag removal beam is provided with a mounting base, the rotating swing frame is rotatably connected to the mounting base via a rotating shaft, and the swing transmission assembly is provided on the mounting base to drive the rotating swing frame to rotate.

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