Crust breaking and blanking device for electrolytic bath

Abstract

The utility model relates to a crust breaking and blanking device for an electrolytic cell, which belongs to the field of electrolytic aluminum production equipment and is characterized in that a guide pipe and a material guide pipe are arranged on a horizontal support plate, the material guide pipe is communicated with the guide pipe, a crust breaking cylinder is mounted in the guide pipe and comprises a cylinder, a piston rod and a crust breaking hammer; the air cylinder is connected with the top of the piston rod, the crust breaking hammer is connected with the bottom of the piston rod, an air inlet and an air outlet are formed in the air cylinder, electromagnetic valves are installed at the air inlet and the air outlet, the electromagnetic valves are connected with a compressed air pipeline through pneumatic control valves, limit switches are arranged at the upper stroke stop point and the lower stroke stop point of telescopic motion of the air cylinder, and the crust breaking air cylinder is controlled through a PLC control system. A supporting base is installed at the connecting position of the crust breaking air cylinder and the horizontal supporting plate, the supporting base is an electric cylinder servo lifting platform, the crust breaking air cylinder can be lifted through the supporting base, the crust breaking position of the crust breaking air cylinder is controlled, and therefore the crust breaking depth of the crust breaking air cylinder is controlled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of electrolytic aluminium production equipment, specifically, the utility model relates to a shell breaking and discharging device for electrolytic cell. BACKGROUND

[0002] The fire eye is an important component of the electrolytic cell, and its function is to allow the electrolyte and the aluminum liquid to flow smoothly. The ordinary shell breaking air cylinder is greatly affected by the wind pressure. If the wind pressure decreases slightly, the shell breaking air cylinder will be powerless, and the fire eye will not be broken, which will cause the electrolyte and the aluminum liquid to flow poorly, thereby affecting the heat balance and material balance of the electrolytic cell, and eventually may cause the electrolytic cell to appear "sick cell" phenomenon, affecting the stability and efficiency of production. Moreover, when manually processing the fire eye blockage problem, the operator needs to stand on the electrolytic cell cover plate to work, which not only may cause the operator to fall due to imbalance, but also may cause the cover plate to deform due to long-term treading, increasing the additional maintenance workload, increasing the labor intensity, and even may cause more serious accidents;

[0003] In addition, in the aluminum electrolysis production activity, it is necessary to continuously add aluminum oxide raw materials to the electrolytic cell to precipitate aluminum liquid on the cathode through the electrolysis process. However, due to the particularity of the electrolytic cell and the characteristics of the electrolysis process, the addition of aluminum oxide raw materials is intermittent, and the discharge port is easily closed during the feeding gap time, forming a hard shell. In order to ensure the smooth addition of aluminum oxide, a shell breaking air cylinder is used for shell breaking and feeding. Since the shell breaking air cylinder is located in the internal environment of the electrolytic cell, it is in a large magnetic field, high temperature and high pollution environment. While overcoming the environmental factors of large magnetic field, high temperature and high pollution, it also needs to meet the needs of the production process, which has high requirements for the use of the shell breaking air cylinder;

[0004] At present, the ordinary shell breaking air cylinder is commonly used in aluminum electrolytic cell, and its working mode is to output 220V signal to the air control cabinet through the tank control machine to control the shell breaking and discharging of the shell breaking air cylinder. The shell breaking depth of the ordinary shell breaking air cylinder cannot be adjusted, which will cause the depth of the striking head into the electrolytic cell melt to be unstable. When the total height of the melt is high, the depth of the striking head into the melt increases, which is easy to produce "shell head package", which may cause the decline of production efficiency and stability of the electrolytic cell, and affect the normal production of the electrolytic cell. UTILITY MODEL CONTENTS

[0005] The utility model discloses an electrolytic cell is with the shell -breaking unloading device, electrolytic cell is with the shell -breaking unloading device sets up the guide pipe, the material guide pipe on the horizontal support plate, the material guide pipe is connected with the guide pipe, and the guide pipe inside installation has the shell -breaking cylinder, and the shell -breaking cylinder includes the cylinder, piston rod, shell -breaking hammer head, the cylinder is connected with the piston rod top, and the shell -breaking hammer head is connected with the piston rod bottom, and the cylinder inside is provided with the air inlet, the gas outlet, and the air inlet, the gas outlet installs the solenoid valve, and the solenoid valve is connected with compressed air pipeline through pneumatic control valve, and the limit switch is equipped at the up and down stroke stop point of the telescopic movement of the cylinder, and the shell -breaking cylinder is controlled through PLC control system, and the connecting position of shell -breaking cylinder and horizontal support plate is installed with support seat, and the support seat is electric cylinder servo lifting platform, and the shell -breaking cylinder can be lifted

[0006] High, control the shell -breaking position of shell -breaking cylinder to control the shell -breaking depth of shell -breaking cylinder.

[0007] In order to realize the above-mentioned purpose, the utility model is through following technical scheme realizes:

[0008] The shell -breaking unloading device for electrolytic cell is characterized by comprising: horizontal support plate, guide pipe, material guide pipe, support seat, shell -breaking cylinder, metering bin, PLC control system, the guide pipe is connected with horizontal support plate, and the shell -breaking cylinder is arranged in the guide pipe, and the material guide pipe is arranged on the side of the guide pipe, and the support seat is arranged on the top surface of the horizontal support plate, and the metering bin is arranged on the top surface of the horizontal support plate, the shell -breaking cylinder includes cylinder, piston rod and shell -breaking hammer head, the cylinder is connected with the top of piston rod, the shell -breaking hammer head is connected with the bottom of piston rod, the cylinder is provided with air inlet and gas outlet in it, the solenoid valve is installed at the air inlet and gas outlet, the solenoid valve is connected with compressed air pipeline through pneumatic control valve, and the limit switch is equipped at the up and down stroke stop point of the telescopic movement of the cylinder, and the shell -breaking cylinder is controlled through PLC control system.

[0009] As preferred: including: insulating sleeve, the insulating sleeve is arranged at the periphery of the guide pipe and the horizontal support plate connection.

[0010] As preferred: including: feed inlet, the feed inlet is arranged on the top surface of the horizontal support plate, and the feed inlet is communicated with the material guide pipe.

[0011] As preferred: the support seat includes: upper plate body, lower plate body and lifting rod, the lower plate body is connected with the horizontal support plate, the lifting rod is arranged between the upper plate body and the lower plate body, and the upper plate body is provided with the socket on the surface.

[0012] As preferred: including: the blanking bin, support, weighing module, discharge port; the blanking bin is arranged on the top surface of the metering bin, the support is arranged on the top surface of the metering bin, the blanking bin is provided with a feeding valve between the blanking bin and the metering bin, the weighing module is arranged on the left and right sides of the metering bin, the discharge port is arranged at the bottom of the metering bin, the discharge port is provided with a discharge valve, the weighing module, the feeding valve and the discharge valve are communicated through a connecting cable, and the connecting cable is provided with a junction box and a control box.

[0013] As preferred: including: the electromagnetic valve is a two-position five-way electromagnetic valve.

[0014] As preferred: including: the limit switch and the electromagnetic valve are connected with a PLC control system, the PLC control system is connected with a tank control machine, and the limit switch is a shell breaking limit sensor.

[0015] As preferred: including: a gas control valve; the gas control valve is connected with a compressed air pipeline, and the compressed air pipeline is connected with the electromagnetic valve through the gas control valve.

[0016] The electrolytic tank with the shell breaking and discharging device is provided with a guide pipe and a material guide pipe on the horizontal support plate, the material guide pipe is communicated with the guide pipe, a shell breaking cylinder is installed in the guide pipe, the shell breaking cylinder comprises a cylinder, a piston rod and a shell breaking hammer head; the cylinder is connected with the top of the piston rod, the shell breaking hammer head is connected with the bottom of the piston rod, an air inlet and an air outlet are arranged in the cylinder, an electromagnetic valve is installed at the air inlet and the air outlet, the electromagnetic valve is connected with a compressed air pipeline through a gas control valve, limit switches are arranged at the upper and lower stroke stop points of the telescopic movement of the cylinder, the shell breaking cylinder is controlled by a PLC control system, a support seat is installed at the connecting position of the shell breaking cylinder and the horizontal support plate, the support seat is an electric cylinder servo lifting platform, the shell breaking cylinder can be lifted by the support seat, the shell breaking position of the shell breaking cylinder is controlled, and thus the shell breaking depth of the shell breaking cylinder is controlled. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an installation relationship diagram of the shell breaking cylinder;

[0018] Figure 2 It is a structure diagram of the shell breaking cylinder;

[0019] Figure 3 It is a module connection diagram of the metering bin;

[0020] Figure 4 It is a module connection diagram of the PLC control system.

[0021] In the diagram, the components are: 1. Horizontal support plate; 2. Guide tube; 3. Shell-breaking cylinder; 4. Material guide tube; 5. Insulating sleeve; 6. Support base; 7. Upper plate; 8. Lower plate; 9. Lifting rod; 10. Cylinder; 11. Piston rod; 12. Shell-breaking hammer; 13. Covering material shell layer; 14. Discharge port; 15. Bracket; 16. Metering chamber; 17. Discharge port; 18. Weighing module; 19. Feed port; 20. Solenoid valve; 21. Limit switch; 22. Compressed air pipeline; 23. PLC control system; 24. Air inlet; 25. Air outlet; 26. Discharge bin; 27. Feed valve; 28. Discharge valve; 29. ​​Connecting cable; 30. Junction box; 31. Control box. Detailed Implementation

[0022] To make the above objectives, technical solutions, and beneficial effects clearer and more explicit, the present invention will be described in detail below with reference to the accompanying drawings.

[0023] like Figures 1-4 As shown, the electrolytic cell shell-breaking and feeding device includes a horizontal support plate 1, a guide pipe 2, a feed pipe 4, a support base 6, a shell-breaking cylinder 103, a metering chamber 16, and a PLC control system 23.

[0024] The guide tube 2 is connected to the horizontal support plate 1. The shell-breaking cylinder 103 is set inside the guide tube 2. An insulating sleeve 5 is installed around the connection between the guide tube 2 and the horizontal support plate 1. The support base 6 is set around the insulating sleeve 5. The support base 6 includes an upper plate 7, a lower plate 8, and a lifting rod 9. The lower plate 8 is connected to the horizontal support plate 1. The lifting rod 9 is set between the upper plate 7 and the lower plate 8. The surfaces of the upper plate 7 and the lower plate 8 are provided with through holes for installing the insulating sleeve 5 and the guide tube 2. After the insulating sleeve 5 and the guide tube 2 are connected at the through holes, the shell-breaking cylinder 103 is installed. The piston rod 11 of the shell-breaking cylinder 103 is connected to the upper plate 7 and the lower plate 8. The lifting rod 9 extends and retracts with the extension and retraction of the piston rod 11 to adjust the height of the shell-breaking hammer head 12. The top end of the guide tube 2 is connected to the horizontal support plate 1, and the bottom end is located above the discharge port. There is a covering material shell layer 13 between the guide tube 2 and the discharge port port 14.

[0025] The shell-breaking cylinder 103 includes a cylinder 10, a piston rod 11, and a shell-breaking hammer 12. The cylinder 10 is connected to the top of the piston rod 11, and the shell-breaking hammer 12 is connected to the bottom of the piston rod 11. The cylinder 10 is provided with an air inlet 24 and an air outlet 25. Solenoid valves 20 are installed at the air inlet 24 and the air outlet 25. The solenoid valves 20 are connected to the compressed air pipeline 22 through a pneumatic control valve. The solenoid valves 20 are two-position five-way solenoid valves. Limit switches 21 are provided at the upper and lower stroke dead points of the extension and retraction movement of the cylinder 10. The limit switches 21 are shell-breaking limit sensors. The shell-breaking cylinder 103 is controlled by a PLC control system 23.

[0026] The material guide pipe 4 is communicated with the guide pipe 2, the top surface of the guide pipe 2 is provided with a feeding port 19 at the position in contact with the horizontal support plate 1, a metering bin 16 is arranged above the feeding port 19, the metering bin 16 is installed on the top surface of the horizontal support plate 1 through a support 15, the top surface of the metering bin 16 is communicated with a discharging bin 26, a feeding valve 27 is arranged between the discharging bin 26 and the metering bin 16, a weighing module 18 is arranged on the left and right sides of the metering bin 16, a discharging port 17 is arranged at the bottom of the metering bin 16, a discharging valve 28 is arranged on the discharging port 17, the weighing module 18, the feeding valve 27 and the discharging valve 28 are communicated through a connecting cable 29, a junction box 30 and a control box 31 are arranged on the connecting cable 29, the metering bin 16 can be arranged to quantitatively feed, the quantitative feeding can be carried out according to production requirements, and resource waste is avoided;

[0027] The shell breaking and discharging device for electrolytic cell is made of aluminum alloy material as a whole, the sealing element is made of fluorine rubber resistant to high temperature of 260 DEG C or above, solid lubricating grease resistant to high temperature of 260 DEG C is adopted, and the device is suitable for a production environment with an environmental temperature of 160 DEG C and a magnetic field strength of 300 GS; the shell breaking cylinder 103 is installed above a discharging fire hole of the electrolytic cell, the air inlet 24 and the air outlet 25 of the shell breaking cylinder 103 are connected with corresponding interfaces of a two-position five-way electromagnetic valve 20 through pipelines respectively, the two-position five-way electromagnetic valve 20 is connected with a compressed air pipeline 22 through an air control valve; limit switches 21 are arranged at the upper and lower stroke stop points of the extension and retraction movement of the shell breaking hammer head 12 respectively; the control interfaces of the limit switches 21, the air control valve and the two-position five-way electromagnetic valve 20 are connected with corresponding interfaces of a PLC control system 23 through connecting cables, and the PLC control system 23 is connected with a cell control machine in communication through a connecting cable; the PLC control system 23 directly collects output signals of the shell breaking limit sensor, i.e. the limit switches 21, controls the execution of shell breaking, and has a shell breaking command input port and a limit information feedback relay port as well as a 485 communication port, and the industrial controller is connected with the cell control machine.

[0028] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application but not limit the present application, although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details without departing from the scope defined in the claims of the present application.

Claims

1. A shell-breaking and feeding device for an electrolytic cell, characterized in that, include: Horizontal support plate, guide tube, feed tube, support base, shell-breaking cylinder, metering bin, PLC control system; The guide tube is connected to the horizontal support plate, the shell-breaking cylinder is located inside the guide tube, the material guide tube is located beside the guide tube, the support seat is located on the top surface of the horizontal support plate, and the metering chamber is located on the top surface of the horizontal support plate. The shell-breaking cylinder includes a cylinder, a piston rod, and a shell-breaking hammer. The cylinder is connected to the top of the piston rod, and the shell-breaking hammer is connected to the bottom of the piston rod. The cylinder has an air inlet and an air outlet, and solenoid valves are installed at the air inlet and the air outlet. The solenoid valves are connected to the compressed air pipeline through a pneumatic control valve. Limit switches are provided at the upper and lower stroke dead points of the cylinder's extension and retraction movement. The shell-breaking cylinder is controlled by a PLC control system.

2. The shell-breaking and feeding device for an electrolytic cell according to claim 1, characterized in that: include: Insulating sleeve; the insulating sleeve is disposed around the connection between the guide tube and the horizontal support plate.

3. The shell-breaking and feeding device for an electrolytic cell according to claim 1, characterized in that: include: Feed inlet; the feed inlet is located on the top surface of the horizontal support plate and is connected to the feed guide pipe.

4. The shell-breaking and feeding device for an electrolytic cell according to claim 1, characterized in that: The support base includes: an upper plate, a lower plate, and a lifting rod; the lower plate is connected to a horizontal support plate, the lifting rod is located between the upper plate and the lower plate, and the surfaces of the upper plate and the lower plate are provided with through-holes.

5. The shell-breaking and feeding device for an electrolytic cell according to claim 1, characterized in that: include: Feeding hopper, support frame, weighing module, discharge port; The feeding hopper is located on the top surface of the metering hopper, and the support frame is located on the top surface of the metering hopper. A feeding valve is installed between the feeding hopper and the metering hopper. The weighing module is located on the left and right sides of the metering hopper, and the discharge port is located at the bottom of the metering hopper. A discharge valve is installed on the discharge port. The weighing module, feeding valve, and discharge valve are connected by a connecting cable. A junction box and a control box are installed on the connecting cable.

6. The shell-breaking and feeding device for an electrolytic cell according to claim 1, characterized in that: include: The solenoid valve is a two-position five-way solenoid valve.

7. The shell-breaking and feeding device for an electrolytic cell according to claim 1, characterized in that: include: The limit switch and solenoid valve are both connected to the PLC control system, which is connected to the tank control machine. The limit switch is a shell-breaking limit sensor.

8. The shell-breaking and feeding device for an electrolytic cell according to claim 1, characterized in that: include: Pneumatic control valve; the pneumatic control valve is connected to a compressed air pipeline, and the compressed air pipeline is connected to a solenoid valve through the pneumatic control valve.

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