Furnace arm cleaning device

Abstract

This invention relates to a furnace arm cleaning device, comprising: a frame, a rotating mechanism, a guide column, an arm shovel support mechanism, and a lifting mechanism. The rotating mechanism includes: a rotary motor, a gear transmission mechanism, a rotating shaft, and a turntable; the top end of the guide column is fixedly connected to the center of the bottom surface of the turntable; the arm shovel support mechanism includes a support base, multiple support arms, multiple cylinders, multiple springs, and multiple arm shovels. The support base is composed of a hollow column, multiple mounting plates, and a base plate. The multiple support arms are radially and evenly spaced around the hollow column. Springs and cylinders are installed between the hollow column and each support arm. This invention is positioned at the furnace opening and uses a lifting mechanism to achieve mechanical slag removal based on the weight of the equipment, resulting in thorough and rapid slag removal.

Description

Technical Field

[0001] This invention belongs to the field of ash removal in combustion equipment, and in particular, a furnace arm cleaning device. Background Technology

[0002] In aluminum melting furnaces, ash and slag will accumulate in the furnace arms during use. Over time, the thickness of the accumulated ash and slag increases, which can affect the amount of molten aluminum, cause localized heating of the ash and slag accumulation, pose safety hazards, and affect product quality. Therefore, after a period of use, operators must clean the slag accumulated in the furnace arms. In the absence of suitable tools, manual cleaning with a hand-held pneumatic pick is used. However, due to the heat of the furnace arms, cleaning is difficult, incomplete, and time-consuming.

[0003] CN216521738U discloses a boiler ash removal device for a prebaked anode calcination workshop, comprising: a boiler, a fixed ring placed at the upper opening of the boiler, a driving mechanism provided on the fixed ring, the output end of the driving mechanism being connected to a gas guide pipe and used to drive the gas guide pipe to rotate, the gas guide pipe being rotatably connected to the center of the fixed ring through a bearing seat, one end of the gas guide pipe being located outside the boiler and connected to an air inlet mechanism, and the other end of the gas guide pipe extending into the boiler and provided with a movable air outlet mechanism.

[0004] This patented technology uses the impact force of steam flow on the boiler furnace wall to achieve the cleaning purpose. However, for some stubborn slag deposits, airflow impact alone is still insufficient to remove them, and it is also energy-intensive. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a furnace arm cleaning device that uses a shovel to mechanically clean slag, which has a significant effect on cleaning accumulated slag.

[0006] The technical solution adopted by this invention to solve the technical problem is:

[0007] A furnace arm cleaning device includes: a frame, a rotating mechanism, guide columns, an arm shovel support mechanism, and a lifting mechanism. The frame has a top plate, a base, and multiple support columns, with the support columns evenly spaced and fixed between the base and the top plate. The rotating mechanism includes: a rotary motor, a gear transmission mechanism, a rotating shaft, and a turntable. The rotary motor and gear transmission mechanism are both mounted on the top surface of the top plate. The output end of the rotary motor is connected to the gear transmission mechanism, and the gear transmission mechanism is connected to the upper end of the rotating shaft. The lower end of the rotating shaft is fixedly connected to the center of the top surface of the turntable. The guide columns have a top end and a bottom end, with the top end of the guide column fixedly connected to the center of the bottom surface of the turntable. The arm shovel support mechanism includes a support base, multiple support arms, multiple cylinders, multiple springs, and multiple arm shovels. The support base consists of a hollow column, multiple mounting plates, and a base. The bottom of the hollow column is connected to the base. The top surface is fixedly connected, and the chassis has a through hole communicating with the hollow column. The guide post passes through the through hole in the hollow column and the chassis. Multiple mounting plates are evenly installed on the outer wall of the hollow column. The support arm has an upper connecting end and a lower connecting end. The upper connecting end of the support arm is hinged to the mounting plate, and the lower connecting end of the support arm is connected to the top of the arm shovel. Multiple support arms are radially evenly spaced around the hollow column. A spring and a cylinder are installed between the hollow column and each support arm. The lifting mechanism includes a lifting motor, a wire rope, and a guide wheel. The lifting motor is fixedly installed on the top surface of the turntable, and the guide wheel is installed on the mounting plate of the hollow column. The lifting motor and the guide wheel are connected by a wire rope.

[0008] Furthermore, the base, pillar, top plate, support arm, and arm shovel are all hollow structures with interconnected inner cavities. Air pipes are installed inside the inner cavities, with the air inlet end of the air pipe connected to a compressed air source and the air outlet end located at the bottom outlet of the arm shovel.

[0009] Furthermore, it also includes a bushing, fixedly mounted at the center of the top plate, for mounting the rotating shaft.

[0010] Furthermore, the chassis has clearance holes at the positions corresponding to the support arms.

[0011] Furthermore, it also includes a lifting lug, which is fixed to the top surface of the top plate.

[0012] Furthermore, the base is a tripod structure.

[0013] Furthermore, the gear transmission mechanism is composed of two meshing bevel gears.

[0014] The advantages and positive effects of this invention are:

[0015] This invention is positioned at the furnace opening and uses a lifting mechanism to achieve mechanical slag removal based on the weight of the equipment. The slag removal is thorough and fast. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention (first perspective);

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention (second perspective);

[0018] Figure 3 This is a three-dimensional structural diagram of the present invention (third perspective). Detailed Implementation

[0019] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not limiting, and should not be used to limit the scope of protection of the present invention.

[0020] like Figure 1-3 The furnace arm cleaning device shown includes: a frame, a rotating mechanism, a guide column 12, an arm shovel support mechanism, and a lifting mechanism.

[0021] The frame has a top plate 5, a base 14 and multiple supports 15, with multiple supports 15 evenly spaced and fixed between the base 14 and the top plate 5; in order to improve the stability of the frame, the base 14 adopts a triangular frame structure, and the entire equipment is made of square steel.

[0022] The rotating mechanism includes: a rotary motor 1, a gear transmission mechanism 4, a rotating shaft, and a turntable 6. The rotary motor 1 and the gear transmission mechanism 4 are both mounted on the top surface of the top plate 5. The output end of the rotary motor 1 is connected to the gear transmission mechanism 4, which is connected to the upper end of the rotating shaft. The lower end of the rotating shaft is fixedly connected to the center of the top surface of the turntable 6. It also includes a bushing, fixedly mounted at the center of the top plate 5, which houses the rotating shaft. The gear transmission mechanism 4 consists of two meshing bevel gears. The rotary motor 1 drives the rotating shaft and turntable 6 to rotate via the gear transmission mechanism 4. After cleaning one location, operating the rotary motor 1 allows for positioning and cleaning of the next location.

[0023] To achieve guidance, a guide post 12 is also included, which has a top end and a bottom end. The top end of the guide post 12 is fixedly connected to the center of the bottom surface of the turntable 6.

[0024] In a preferred embodiment, the guide post 12 is a square post, slightly longer than the support post 15. The guide post 12 rotates with the turntable 6.

[0025] The boom shovel support mechanism is mounted on the guide post 12 and moves up and down along the guide post 12. The boom shovel support mechanism includes: a support base, multiple support arms 16, multiple cylinders 9, multiple springs 17, and multiple boom shovels 13. The support base is composed of a hollow column 8, multiple mounting plates 7, and a base 11. The bottom of the hollow column 8 is fixedly connected to the top surface of the base 11. The base 11 has a through hole communicating with the hollow column 8. The guide post 12 passes through the hollow column 8 and the through hole on the base 11. The base 11 has clearance holes corresponding to the positions of the support arms 16.

[0026] Multiple mounting plates 7 are evenly installed on the outer wall of the hollow column 8, respectively for mounting cylinders 9, springs 17, and guide wheels 10. The support arm 16 has an upper connecting end and a lower connecting end. The upper connecting end of the support arm 16 is hinged to the mounting plate 7 installed on the upper part of the hollow column 8, and the lower connecting end of the support arm 16 is connected to the top of the arm shovel 13. Multiple support arms 16 are radially and evenly spaced around the hollow column 8. A spring 17 and a cylinder 9 are installed between the hollow column 8 and each support arm 16. The cylinders 9 and springs 17 keep the arm shovel 13 in close contact with the inner wall of the crucible, allowing it to descend and clean under its own weight.

[0027] To enable the boom support mechanism to move up and down, a lifting mechanism is also included. The lifting mechanism includes a lifting motor 2, a wire rope, and a guide wheel 10. The lifting motor 2 is fixedly mounted on the top surface of the turntable 6, and the guide wheel 10 is mounted on the mounting plate 7 of the hollow column 8. The lifting motor 2 and the guide wheel 10 are connected by a wire rope.

[0028] To further enhance the cutting power, the base, support column, top plate, support arm, and boom shovel are all hollow structures with interconnected internal cavities. Air pipes are installed within these cavities, with the inlet connected to a compressed air source and the outlet located at the bottom of the boom shovel. Powered by compressed air, it utilizes impact to break up hard objects.

[0029] To facilitate hoisting, a lifting lug 3 is also included, which is fixed to the top surface of the top plate 5.

[0030] The method of using this invention is as follows:

[0031] The furnace arm cleaning device is positioned at furnace opening 18 using a crane. Cylinder 9 and spring 17 keep the pneumatic pick pressed firmly against the inner wall of the crucible. The device weighs approximately 450 kg. The lifting motor and arm support mechanism are controlled by a distribution box. The arm shovel 13 moves downwards, relying on its own weight to perform mechanical slag removal. After cleaning one location, the rotary motor 1 is operated to position the device for cleaning the next area.

[0032] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept, and these all fall within the protection scope of the present invention.

Claims

1. A furnace arm cleaning device, characterized in that, include: The frame has a top plate (5), a base (14) and multiple supports (15), with multiple supports (15) evenly spaced and fixed between the base (14) and the top plate (5). The rotating mechanism includes a rotary motor (1), a gear transmission mechanism (4), a rotating shaft, and a turntable (6). The rotary motor (1) and the gear transmission mechanism (4) are both installed on the top surface of the top plate (5). The output end of the rotary motor (1) is connected to the gear transmission mechanism (4). The gear transmission mechanism (4) is connected to the upper end of the rotating shaft. The lower end of the rotating shaft is fixedly connected to the center of the top surface of the turntable (6). Guide post (12), the guide post (12) has a top end and a bottom end, the top end of the guide post (12) is fixedly connected to the center of the bottom surface of the turntable (6); The boom support mechanism includes a support base, multiple support arms (16), multiple cylinders (9), multiple springs (17), and multiple booms (13). The support base is composed of a hollow column (8), multiple mounting plates (7), and a chassis (11). The bottom of the hollow column (8) is fixedly connected to the top surface of the chassis (11). The chassis (11) has a through hole communicating with the hollow column (8). The guide post (12) passes through the through hole on the hollow column (8) and the chassis (11). The plurality of mounting plates (7) are evenly installed on the outer wall of the hollow column (8). The support arm (16) has an upper connecting end and a lower connecting end. The upper connecting end of the support arm (16) is hinged to the mounting plate (7). The lower connecting end of the support arm (16) is connected to the top of the arm shovel (13). The plurality of support arms (16) are radially evenly spaced around the hollow column (8). A spring (17) and a cylinder (9) are installed between the hollow column (8) and each support arm (16). The lifting mechanism includes a lifting motor (2), a wire rope and a guide wheel (10). The lifting motor (2) is fixed on the top surface of the turntable (6), and the guide wheel (10) is installed on the mounting plate (7) of the hollow column (8). The lifting motor (2) and the guide wheel (10) are connected by a wire rope.

2. The furnace arm cleaning device according to claim 1, characterized in that, The base (14), pillar (15), top plate (5), support arm (16) and arm shovel (13) are all hollow structures with interconnected inner cavities. Air pipes are installed in the inner cavities. The air inlet of the air pipe is connected to a compressed air source, and the air outlet is located at the bottom outlet of the arm shovel (13).

3. The furnace arm cleaning device according to claim 2, characterized in that, It also includes a bushing, which is fixed to the center of the top plate (5) and fits the rotating shaft.

4. The furnace arm cleaning device according to claim 3, characterized in that, The chassis (11) has clearance holes at the positions corresponding to the support arm (16).

5. The furnace arm cleaning device according to claim 4, characterized in that, It also includes a lifting lug (3), which is fixed to the top surface of the top plate (5).

6. The furnace arm cleaning device according to claim 5, characterized in that, The base (14) is a tripod structure.

7. The furnace arm cleaning device according to claim 6, characterized in that, The gear transmission mechanism (4) consists of two meshing bevel gears.

Images