A device and method for feeding and cleaning a reduction vessel of reduction slag

Abstract

The application discloses a device and method for feeding and cleaning reduction slag of a reduction tank, and the device for feeding and cleaning reduction slag of the reduction tank comprises a transverse moving frame, a vertical lifting mechanism, an in-out moving frame and a feeding and slag removing mechanism. The device and method for feeding and cleaning reduction slag of the reduction tank can be quickly aligned with the tank opening of the reduction tank, and feeding and slag removing can be completed in two cycle processes, so that quick movement is realized, damage of the feeding and cleaning reduction slag device to the reduction tank is reduced, feeding and slag removing efficiency is greatly improved, labor intensity is greatly reduced, and the occupational disease of the operator is reduced.

Description

Technical Field

[0001] This invention belongs to the field of light metal smelting technology, specifically relating to a device and method for feeding and cleaning reduction slag in a reduction tank. Background Technology

[0002] Magnesium, as a light metal, has a specific gravity of only 1.74 g / cm³, making magnesium alloys 36% lighter than aluminum alloys and 77% lighter than steel. It also boasts excellent shock absorption properties, leading to its widespread application in the automotive industry, where it is used to manufacture dozens of automotive components and parts. The world's main magnesium production is in China, where current production utilizes inexpensive raw coal gas from semi-coke production and low-cost dolomite raw materials. Currently, magnesium smelting primarily employs the Pidgeon process, which involves grinding ferrosilicon into powder, grinding calcined dolomite into powder, and mixing them with fluorite powder in a specific ratio. This mixture is then formed into briquettes of a certain volume and placed in a stainless steel reduction tank at approximately 1220°C. After a reduction reaction over a certain period, metallic magnesium is collected through a crystallizer. The crystallizer is then removed by opening the end cap of the reduction tank, and the reduction slag is extracted, completing the magnesium reduction process – the Pidgeon process.

[0003] Currently, manual loading of raw materials into the reduction tank using shovels and removal of reduction residue from the tank using forklift-mounted shovels are employed. Manual loading has drawbacks such as high labor intensity, susceptibility to heat radiation sickness and pneumoconiosis, low production efficiency, and high personnel costs. Forklift-mounted shovels for removing reduction residue have drawbacks such as severe damage to the reduction tank, high skill requirements for forklift drivers, and the risk of knocking over the reduction tank furnace. Summary of the Invention

[0004] The purpose of this invention is to provide an apparatus and method for feeding and cleaning reduction slag in a reduction tank, in order to solve the problems of high labor intensity, low production efficiency and occupational diseases of operators caused by manual feeding in the prior art, and serious damage to the reduction tank and knocking over the furnace of the reduction tank caused by forklifts equipped with iron shovels for cleaning reduction slag.

[0005] This invention is implemented through the following technical solutions:

[0006] A device for feeding and cleaning reduction residue in a reduction tank includes a transverse moving frame, a vertical lifting mechanism, an inlet and outlet moving frame, and a feeding and slag removal mechanism.

[0007] The lateral moving frame is assembled and connected to the lateral drive system, which drives the lateral moving frame to move laterally along the factory guide rails; the vertical lifting mechanism is installed on the lateral moving frame.

[0008] The inlet and outlet moving frame is assembled and connected with the inlet and outlet drive system. The inlet and outlet drive system drives the feeding and slag removal mechanism to move back and forth on the inlet and outlet moving frame. The front end of the inlet and outlet moving frame is equipped with a lock hook for the mouth of the reduction tank.

[0009] The feeding and slag removal mechanism includes a shovel, a cylinder fixing pipe, a propulsion cylinder, a piston plate, and a movable tailstock. One end of the cylinder fixing pipe is fixed to the movable tailstock, and the other end of the cylinder fixing pipe is connected to the tail end of the shovel through a flange. The propulsion cylinder is installed inside the cylinder fixing pipe, and the tail end of the propulsion cylinder is fixed to the cylinder fixing pipe. The front end of the propulsion cylinder is connected to the piston plate through a pin, and the piston plate is installed inside the shovel.

[0010] Furthermore, one end of the lifting cylinder in the vertical lifting mechanism is connected to the guide cylinder, and the other end is connected to the support leg. The vertical lifting mechanism drives the moving frame to move in the vertical direction.

[0011] Furthermore, the infeed / outfeed drive system includes a drive assembly, a drive sprocket, a driven sprocket, and a chain; a longitudinal moving guide rail is provided on the infeed / outfeed moving frame, the drive sprocket is connected to the driven sprocket through the chain, a chain drive chuck is fixedly connected to the chain, the chain drive chuck is fixedly connected to the moving tailstock, and the chain drive chuck is slidably connected to the longitudinal moving guide rail; the drive assembly drives the drive sprocket to connect to the driven sprocket through the chain, thereby driving the feeding and slag removal mechanism on the chain drive chuck to move.

[0012] Furthermore, the chain is a double-row chain.

[0013] Furthermore, the drive assembly includes interconnected servo motors, reducers, and couplings.

[0014] Furthermore, a tensioning mechanism is provided near the driven sprocket, which is used to adjust the center distance between the driving sprocket and the driven sprocket.

[0015] Furthermore, the hook at the mouth of the restoration tank is a hollow frame, with robotic arms symmetrically arranged on both sides of the hollow frame.

[0016] Furthermore, a front guide wheel is installed near the driven sprocket on the hook at the can opening to guide the bucket.

[0017] Another technical solution adopted in this invention is as follows:

[0018] A method for operating a feeding and slag removal device for a reduction tank involves adjusting the horizontal drive system and the vertical lifting mechanism, and cooperating with the inlet / outlet drive system and the slag removal mechanism to complete the feeding or slag removal.

[0019] Furthermore, the device includes: a transverse moving frame (100), a vertical lifting mechanism (200), an in-and-out moving frame (300), and a feeding and slag removal mechanism (400).

[0020] Feeding mode: Adjust the horizontal drive system and vertical lifting mechanism to align the shovel bucket with the center line of the reduction tank. Then, load the raw material into the shovel bucket. The feeding and slag removal mechanism is sent into the reduction tank through the in-and-out drive system. Then, the servo motor in the in-and-out drive system reverses to bring out the feeding and slag removal mechanism. At the same time, the propulsion cylinder in the feeding and slag removal mechanism extends. The extension speed is the same as the furnace exit speed of the feeding and slag removal mechanism. After the piston plate is flush with the shovel bucket port, the propulsion cylinder rises to the set position and then retracts to the set position to stop. One feeding process is completed.

[0021] Slag removal mode: Adjust the horizontal drive system and vertical lifting mechanism to align the shovel with the center line of the reduction tank. Then, send the slag removal mechanism into the reduction tank through the inlet and outlet drive system to fill the shovel with reduction slag. Then, the servo motor in the inlet and outlet drive system reverses to bring out the slag removal mechanism. After the shovel reaches the set position at the opening of the reduction tank, the propulsion cylinder in the slag removal mechanism extends to unload the reduction slag in the shovel into the designated hopper. Then, the propulsion cylinder retracts to the set position and stops, completing one slag removal process.

[0022] The beneficial effects of the present invention are as follows: The device and method for feeding and cleaning reduction slag in a reduction tank can be quickly aligned with the opening of the reduction tank, and feeding / slag discharge can be completed in two cycles. This achieves rapid movement, reduces damage to the reduction tank caused by the feeding and slag cleaning device, greatly improves feeding / slag discharge efficiency, and also greatly reduces labor intensity and occupational diseases of operators. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a device for feeding and cleaning reduction slag in a reduction tank according to the present invention;

[0024] Figure 2 This is a schematic diagram of the feeding and slag removal mechanism of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the entry / exit moving frame and entry / exit driving system of the present invention;

[0026] Figure 4 This is a schematic diagram of the vertical lifting mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the lateral movement frame and lateral drive system structure of the present invention.

[0028] Among them, 1. Guide rail; 100. Lateral moving frame; 200. Vertical lifting mechanism; 201. Lifting cylinder; 202. Guide cylinder; 203. Support leg; 300. In-and-out moving frame; 301. Reduction tank mouth hook; 302. Longitudinal moving guide rail; 303. Chain driven chuck; 304. Tensioning mechanism; 305. Front guide wheel; 400. Feeding and slag removal mechanism; 401. Shovel; 402. Cylinder fixing pipe; 403. Propulsion cylinder; 404. Piston plate; 405. Moving tailstock; 406. Flange; 500. Lateral drive system; 600. In-and-out drive system; 601. Drive assembly; 6011. Servo motor; 6012. Reducer; 6013. Coupling; 602. Drive sprocket; 603. Driven sprocket; 604. Chain. Detailed Implementation

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Combination Figures 1-5 As shown, the present invention provides a device for feeding and cleaning reduction slag in a reduction tank, specifically for loading and unloading slag from magnesium / calcium reduction tanks.

[0031] A device for feeding and cleaning reduction slag in a reduction tank includes a transverse moving frame 100, a vertical lifting mechanism 200, an in-and-out moving frame 300, and a feeding and slag removal mechanism 400.

[0032] The lateral moving frame 100 is assembled and connected to the lateral drive system 500, which drives the lateral moving frame 100 to move laterally along the factory guide rail 1; the vertical lifting mechanism 200 is installed on the lateral moving frame 100.

[0033] The in-and-out moving frame 300 is assembled and connected to the in-and-out driving system 600. The in-and-out driving system 600 drives the feeding and slag removal mechanism 400 to move back and forth on the in-and-out moving frame 300. The front end of the in-and-out moving frame 300 is provided with a reduction tank opening hook 301. The reduction tank opening hook 301 is a hollow frame, and mechanical arms are symmetrically arranged on both sides of the hollow frame. The reduction tank opening hook 301 is provided with a front guide wheel 305 near the driven sprocket 603 to guide the shovel bucket 401.

[0034] The feeding and slag removal mechanism 400 includes a shovel 401, a cylinder fixing pipe 402, a propulsion cylinder 403, a piston plate 404, and a movable tailstock 405. One end of the cylinder fixing pipe 402 is fixed to the movable tailstock 405, and the other end of the cylinder fixing pipe 402 is connected to the tail end of the shovel 401 through a flange 406. The propulsion cylinder 403 is installed inside the cylinder fixing pipe 402, and the tail end of the propulsion cylinder 403 is fixed to the cylinder fixing pipe 402. The front end of the propulsion cylinder 403 is connected to the piston plate 404 through a pin. The piston plate 404 is installed inside the shovel 401, and the tail end is fixed to the chain drive chuck 303 through the movable tailstock 405.

[0035] First, fix one end of the fixed pipe of the propulsion cylinder 403, and connect the other end to the reducing material ball / reducing slag shovel 401 through flange 406. Then, install one fixed end of the propulsion cylinder 403 into the cylinder fixed pipe 402, and connect the other end to the piston round plate 404 through a pin. The piston round plate 404 is installed into the reducing material ball / reducing slag shovel 401. The propulsion cylinder 403 is a high-temperature resistant cylinder.

[0036] In some embodiments, the lateral drive system 500 is disposed at both ends below the lateral moving frame 100 and is used to drive the lateral moving frame 100 to move laterally along the factory guide rail 1. The lateral drive system 500 includes accessories such as a servo motor, a reducer, a coupling, a drive wheel, and a driven wheel. The drive wheel and the driven wheel are respectively installed into the lateral drive system frame. Then, the servo motor, the reducer, and the coupling are installed in sequence. The drive system frame is then installed onto the overall frame. The servo motor drives the drive wheel to move on the factory guide rail, thereby realizing the overall lateral movement.

[0037] In some embodiments, one end of the lifting cylinder 201 in the vertical lifting mechanism 200 is connected to the guide cylinder 202, and the other end is connected to the support leg 203. The vertical lifting mechanism 200 drives the moving frame 300 to move in the vertical direction. First, the guide cylinder 202 is installed on the corresponding base of the horizontal moving frame (100) base, one end of the lifting cylinder 201 is installed on the guide cylinder 202, and then the other side of the lifting cylinder 201 is installed on the support leg 203.

[0038] In some embodiments, the inbound / outbound drive system 600 includes a drive assembly 601, a drive sprocket 602, a driven sprocket 603, and a chain 604; a longitudinal moving guide rail 302 is provided on the inbound / outbound moving frame 300; the drive sprocket 602 is connected to the driven sprocket 603 via the chain 604; a chain drive chuck 303 is fixedly connected to the chain 604; the chain drive chuck 303 is fixedly connected to the moving tailstock 405; and the chain drive chuck 303 is slidably connected to the longitudinal moving guide rail 302; the drive assembly 601 drives the drive sprocket 602 to connect to the driven sprocket 603 via the chain 604, thereby moving the feeding and slag removal mechanism 400 on the chain drive chuck 303.

[0039] First, install the drive sprocket 602, driven sprocket 603, chain 604, tensioning mechanism 304, front guide wheel 305, and reduction tank opening hook 301 into the moving frame 300. Then, connect and install the servo motor 6011, reducer 6012, and coupling 6013 in the drive assembly 601 to their respective positions. Finally, install the chain drive chuck 303 onto the chain 604. The vertical lifting mechanism 200 adjusts its height by moving the lifting cylinder 201. The reduction tank opening hook 301 is mainly used to counteract the reverse force during the feeding process and reduce the lateral force on the track.

[0040] In some embodiments, a tensioning mechanism 304 is provided near the driven sprocket 603, which is used to adjust the center distance between the driving sprocket 602 and the driven sprocket 603.

[0041] The operation process of the device for feeding and cleaning reduction slag in a reduction tank according to the present invention is as follows:

[0042] Feeding: First, the horizontal drive system 500 moves, then the vertical lifting mechanism 200 and the lifting cylinder 201 move to align the center line of the reducing material ball bucket 401 with the center line of the reduction tank. Then, the reduction tank opening hook 301 is engaged with the reduction tank opening to counteract the reverse force generated during the feeding process. Then, the reducing material balls are loaded into the reducing material ball bucket 401 until it is full. The servo motor 6011 in the inlet / outlet drive system 600 drives the drive sprocket 602 to rotate, which in turn drives the chain 604 to move into the reduction furnace. This causes the chain drive chuck 303 to move in a fixed position with the chain 604, and the chain drive chuck 303 feeds the material. The slag removal mechanism 400 sends the material into the reduction tank. Then, the servo motor 6011 in the drive system 600 reverses, bringing the feeding slag removal mechanism 400 out. At the same time, the propulsion cylinder 403 inside the feeding slag removal mechanism 400 extends out at the same speed as the feeding slag removal mechanism 400 exits the furnace. Its piston plate 404 remains stationary relative to the bottom of the reduction tank. After the piston plate 404 is aligned with the port of the reducing material ball shovel 401, the propulsion cylinder 403 rises to the set position and retracts with the piston plate 404, stopping at the set position. One feeding process is completed. It is set that each reduction tank needs two cycles to complete the feeding process.

[0043] Slag removal: First, the horizontal drive system 500 is moved, and then the vertical lifting mechanism 200 and the lifting cylinder 201 move to align the center line of the reducing slag shovel 401 with the center line of the reducing tank. Then, the servo motor 6011 in the inlet / outlet drive system 600 drives the drive sprocket 602 to rotate, which in turn drives the chain 604 to move into the reducing furnace. This causes the chain drive chuck 303 to move in a fixed position with the chain 604. The chain drive chuck 303 then sends the feeding slag removal mechanism 400 into the reducing tank, where the reducing slag is loaded. Once full, the servo motor 6011 in the drive system 600 reverses, bringing out the feeding and slag removal mechanism 400. After the reduction slag shovel 401 reaches the set position at the furnace opening of the reduction tank, the propulsion cylinder 403 inside the feeding and slag removal mechanism 400 extends to unload the reduction slag in the reduction slag shovel 401 into the designated hopper. Then, the propulsion cylinder 403 retracts with the piston plate 404 and stops at the set position, completing one slag removal process. It is set that each reduction tank needs two cycles to complete the slag removal.

[0044] In summary, the present invention provides a feeding and cleaning device for a reduction tank, which can quickly align with the tank opening and complete feeding / removal in two cycles. This enables rapid movement of the feeding and cleaning device within the reduction tank, reduces damage to the reduction tank, greatly improves feeding / removal efficiency, and significantly reduces labor intensity and occupational diseases for operators.

[0045] This invention provides a device for feeding and cleaning reduction slag in a reduction tank to improve production efficiency and reduce production costs, and has significant practical value for automated smelting of magnesium / calcium metals.

[0046] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A method for operating a device for feeding and cleaning reduction slag in a reduction tank, characterized in that: The device includes a transverse moving frame (100), a vertical lifting mechanism (200), an in-and-out moving frame (300), and a feeding and slag removal mechanism (400). The lateral moving frame (100) is assembled and connected to the lateral drive system (500), and the lateral drive system (500) drives the lateral moving frame (100) to move laterally along the factory guide rail (1); the vertical lifting mechanism (200) is installed on the lateral moving frame (100). The in-and-out moving frame (300) is assembled and connected to the in-and-out driving system (600). The in-and-out driving system (600) drives the feeding and slag removal mechanism (400) to move back and forth on the in-and-out moving frame (300). The front end of the in-and-out moving frame (300) is provided with a reduction tank opening hook (301). The reduction tank opening hook (301) is a hollow frame, with robotic arms symmetrically arranged on both sides of the hollow frame; The feeding and slag removal mechanism (400) includes a shovel (401), a cylinder fixing pipe (402), a propulsion cylinder (403), a piston plate (404), and a movable tailstock (405). One end of the cylinder fixing pipe (402) is fixed on the movable tailstock (405), and the other end of the cylinder fixing pipe (402) is connected to the tail end of the shovel (401) through a flange (406). The propulsion cylinder (403) is installed inside the cylinder fixing pipe (402), and the tail end of the propulsion cylinder (403) is fixed on the cylinder fixing pipe (402). The front end of the propulsion cylinder (403) is connected to the piston plate (404) through a pin, and the piston plate (404) is installed inside the shovel (401). The lifting cylinder (201) in the vertical lifting mechanism (200) is connected at one end to the guide cylinder (202) and at the other end to the support leg (203). The vertical lifting mechanism (200) drives the moving frame (300) to move in the vertical direction. Feeding mode: Adjust the horizontal drive system (500) and the vertical lifting mechanism (200) to align the shovel bucket (401) with the center line of the reduction tank, and then load the raw material into the shovel bucket (401). Send the feeding and slag removal mechanism (400) into the reduction tank through the in-out drive system (600). Then, the servo motor (6011) in the in-out drive system (600) reverses to bring out the feeding and slag removal mechanism (400). At the same time, the propulsion cylinder (403) in the feeding and slag removal mechanism (400) extends out at the same speed as the furnace exit speed of the feeding and slag removal mechanism (400). After the piston plate (404) is flush with the port of the shovel bucket (401), the propulsion cylinder (403) rises to the set position and then the propulsion cylinder (403) retracts to the set position and stops. One feeding process is completed.

2. The method of claim 1, wherein: The inlet / outlet drive system (600) includes a drive assembly (601), a drive sprocket (602), a driven sprocket (603), and a chain (604); a longitudinal moving guide rail (302) is provided on the inlet / outlet moving frame (300); the drive sprocket (602) is connected to the driven sprocket (603) through the chain (604); a chain drive chuck (303) is fixedly connected to the chain (604); the chain drive chuck (303) is fixedly connected to the moving tailstock (405); and the chain drive chuck (303) is slidably connected to the longitudinal moving guide rail (302); the drive assembly (601) drives the drive sprocket (602) to connect to the driven sprocket (603) through the chain (604), thereby driving the feeding and slag removal mechanism (400) on the chain drive chuck (303) to move.

3. The working method of the device for feeding and cleaning reduction slag in the reduction tank as described in claim 2: the chain (604) is a double-row chain.

4. The method of claim 2, wherein: The drive assembly (601) includes a servo motor (6011), a reducer (6012), and a coupling (6013) connected to each other.

5. The method of claim 2, wherein: A tensioning mechanism (304) is provided near the driven sprocket (603) for adjusting the center distance between the driving sprocket (602) and the driven sprocket (603).

6. The method of claim 1, wherein: The reduction tank opening hook (301) has a front guide wheel (305) located near the driven sprocket (603) to guide the shovel bucket (401).

7. The working method of the device for feeding and cleaning reduction slag in a reduction tank as described in claim 1, characterized in that, Adjust the lateral drive system (500) and the vertical lifting mechanism (200), and complete the feeding or slag removal by cooperating with the inlet and outlet drive system (600) and the slag removal mechanism (400).

8. The working method of the device for feeding and cleaning reduction slag in a reduction tank as described in claim 1, characterized in that: Slag removal mode: Adjust the horizontal drive system (500) and the vertical lifting mechanism (200) to align the shovel bucket (401) with the center line of the reduction tank. Then, send the feeding slag removal mechanism (400) into the reduction tank through the inlet and outlet drive system (600) so that the shovel bucket (401) is filled with reduction slag. Then, the servo motor (6011) in the inlet and outlet drive system (600) reverses to bring out the feeding slag removal mechanism (400). After the shovel bucket (401) reaches the set position at the opening of the reduction tank, the propulsion cylinder (403) in the feeding slag removal mechanism (400) extends to unload the reduction slag in the shovel bucket (401) into the designated hopper. Then, the propulsion cylinder (403) retracts to the set position and stops, and one slag removal process is completed.

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