Tipping emergency system for aluminum electrolysis anode assembling intermediate frequency furnace

Abstract

The utility model relates to the technical field of aluminum electrolysis, in particular to an aluminum electrolysis anode assembly intermediate frequency furnace tipping emergency system which comprises a hydraulic system, the hydraulic system comprises a hydraulic station, a hand-operated direction valve group and a tipping oil cylinder which are connected in series through pipelines, and the emergency system comprises an electric control direction valve group. A passage structure and an oil pipe structure are arranged between the electric control reversing valve set and the hydraulic system, a remote controller receiver used for providing action instructions for the electric control reversing valve set is arranged on the electric control reversing valve set, the remote controller receiver is provided with a remote controller transmitter in a matched mode, and the remote controller transmitter is used for transmitting the action instructions and providing the action instructions for the emergency system. According to the emergency system, an original manual operation system is not changed, the emergency system can be connected with a hydraulic system through a simple passage structure and an oil pipe structure, original equipment is improved, the improvement cost is low, and adaptability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum electrolysis, in particular to a tipping emergency system for an aluminum electrolysis anode assembly medium-frequency furnace. Background Art

[0002] During the aluminum electrolysis assembly production process, the aluminum guide rod and anode carbon block are assembled using molten iron casting. After a certain proportion of molten iron is melted in the medium frequency furnace, it is tilted and poured into the casting ladle for the casting operation. The molten iron in the medium frequency furnace needs to be tilted when it is poured into the casting ladle after being melted. The tilting of the aluminum electrolysis medium frequency furnace is mostly hydraulically driven. A single-port hydraulic cylinder is configured on each side of the medium frequency furnace and driven in parallel. A manual valve group is set up on the roadside. The molten iron is dumped by manually controlling the handle. The temperature of the molten iron exceeds 1200℃. During the dumping process, it is very easy to cause molten iron to splash due to various reasons. In more serious cases, the molten iron in the medium frequency furnace will splash and overflow. Personnel are prohibited from approaching the operation, which is very dangerous.

[0003] At present, when an emergency occurs, personnel cannot get close and can only deal with it after the temperature has been slowly lowered by cutting off the power. This may easily lead to damage to the medium frequency furnace body or auxiliary equipment under the furnace, causing accidents. Even if no equipment is damaged in the end, it will have a long-term impact on production.

[0004] The Chinese utility model patent with publication number CN218586938U discloses a torpedo tank brake circuit power supply and emergency tank return system. The utility model's torpedo tank brake circuit power supply and emergency tank return system can effectively reduce the production accident rate caused by brake failure during the torpedo tank's tipping process. At the same time, it can effectively eliminate the accident of excessive iron tipping caused by operating system failure, which causes the ladle to overflow. The system installs an independent brake control circuit on the operating table, rotates the gear of the independent brake control circuit through the emergency switch knob, and connects the contactor auxiliary contact to the DI module of the PLC; realizes contact closure state feedback, and makes the independent power supply the same power supply state as the normal power supply, and at the same time feedbacks the power supply state of the backup power supply; it is convenient for electricians to handle faults later; however, the control switch of the system is not independent and is not suitable for the medium frequency furnace tipping situation proposed in this technology. Utility Model Content

[0005] In view of the technical problems existing in the background technology, the purpose of the utility model is to provide an emergency system for tipping over of a medium-frequency furnace for assembling an aluminum electrolysis anode, which can be operated from a distance to reduce the danger caused by splashing of molten iron.

[0006] In order to achieve the above purpose, the technical solution provided by the present utility model is:

[0007] An emergency system for tilting a medium-frequency furnace for assembling an aluminum electrolytic anode includes a hydraulic system. The hydraulic system includes a hydraulic station, a manual reversing valve group, and a tilting cylinder. The three are connected in series through pipelines. The emergency system includes an electronically controlled reversing valve group. A passage structure and an oil pipe structure are provided between the electronically controlled reversing valve group and the hydraulic system. The electronically controlled reversing valve group is provided with a remote control receiver for providing action instructions to the electronically controlled reversing valve group. The remote control receiver is equipped with a remote control transmitter. The remote control transmitter is used to transmit action instructions to provide action instructions to the emergency system.

[0008] Preferably, an oil return pipe and an oil supply pipe are arranged between the hydraulic station and the manual reversing valve group, and the passage structure includes a first hydraulic tee and a second hydraulic tee, the first hydraulic tee is arranged on the oil supply pipe, and the second hydraulic tee is arranged on the oil return pipe.

[0009] Preferably, an oil pipeline is provided between the manual reversing valve group and the tilting cylinder, and the passage structure further includes a third hydraulic tee, and the third hydraulic pressure is provided on the oil pipeline.

[0010] Preferably, the electrically controlled reversing valve group is provided with a P port, a T port and an A port, the oil pipe structure is connected to the passage structure, and the oil pipe structure is connected to the P port, the T port and the A port respectively.

[0011] Preferably, the oil pipe structure includes a first high-pressure oil pipe, a second high-pressure oil pipe and a third high-pressure oil pipe, one end of the first high-pressure oil pipe is connected to the first hydraulic tee, and the other end is connected to the P port; one end of the second high-pressure oil pipe is connected to the second hydraulic tee, and the other end is connected to the T port; one end of the third high-pressure oil pipe is connected to the third hydraulic tee, and the other end is connected to the A port.

[0012] Preferably, the tilting cylinder is a single-port cylinder, and the two cylinders are used in parallel, and the third hydraulic tee is connected to the two tilting cylinders respectively.

[0013] Preferably, the electrically controlled reversing valve group, the remote control receiver, the remote control transmitter, the passage structure and the oil pipe structure constitute a system that can independently control the tilting action of the intermediate frequency furnace.

[0014] The utility model has the following advantages and beneficial effects:

[0015] 1. In the present invention, the operating position of the remote control transmitter is not restricted, and it can be operated nearby or remotely, reducing the danger caused by molten iron splashing. In critical situations, the remote control operation can be carried out remotely, avoiding equipment losses caused by the inability of personnel to get close.

[0016] 2. In the present invention, the emergency system does not change the original manual operating system, and can be connected to the hydraulic system through a simple passage structure and oil pipe structure, thereby improving the original equipment. The improvement cost is low and the adaptability is strong. The electric control reversing valve has a fast response and is controlled by an electric signal, which can more effectively handle problems in an emergency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall connection of an emergency system for tipping over an intermediate frequency furnace for assembling an aluminum electrolysis anode provided by the present invention;

[0018] Figure 2 This is a partially enlarged view of an emergency system for tipping over an intermediate frequency furnace for assembling an aluminum electrolysis anode provided by the present invention;

[0019] Figure 3 This is a schematic diagram of the hydraulic system of an emergency system for tipping over of a medium-frequency furnace for assembling an aluminum electrolysis anode provided by the utility model;

[0020] Icons: 1-Hydraulic station, 2-Manual reversing valve group, 3-Tipping cylinder, 4-Electronic control reversing valve group, 5-Remote control receiver, 6-Remote control transmitter, 71-First hydraulic tee, 72-Second hydraulic tee, 73-Third hydraulic tee, 81-First high-pressure oil pipe, 82-Second high-pressure oil pipe, 83-Third high-pressure oil pipe, 91-A port, 92-P port, 93-T port, 101-Oil supply main pipe, 102-Oil return main pipe, 103-Oil pipeline. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0023] Example

[0024] like Figure 1-3As shown, an emergency system for tilting of an intermediate frequency furnace for assembling an aluminum electrolytic anode includes a hydraulic system and an emergency system for controlling the tilting action of the intermediate frequency furnace. The hydraulic system includes a hydraulic station 1, a manual reversing valve group 2 and a tilting cylinder 3, and the three are connected in series through hydraulic pipelines. The emergency system includes an electronically controlled reversing valve group 4, a passage structure and an oil pipe structure. The hydraulic station 1, the electronically controlled reversing valve group 4 and the tilting cylinder 3 are connected in series through hydraulic pipelines. A remote control receiver 5 for providing action instructions to the electronically controlled reversing valve group 4 is provided on the electronically controlled reversing valve group 4. The remote control receiver 5 is electrically connected to the electronically controlled reversing valve group 4. The remote control receiver 5 is equipped with a remote control transmitter 6. The remote control transmitter 6 is used to transmit action instructions to provide action instructions for the emergency system. The remote control transmitter 6 sends instructions to the remote control receiver 5. The remote control receiver 5 outputs an electrical signal according to the received instruction to control the electronically controlled reversing valve group 4 to perform oil circuit switching action, thereby realizing control of the tilting cylinder 3.

[0025] The function of the hydraulic station 1 is to provide hydraulic power for the manual reversing valve group 2 and the electric control reversing valve group 4; the manual reversing valve group 2 is the valve group for daily on-site operation of the medium frequency furnace. In the prior art, there is only one set of manual reversing valve groups 2, and workers need to manually operate the tilting cylinder 3 on site to realize the tilting of the medium frequency furnace. The operating position of the remote control transmitter set in the present invention is not restricted. It can be operated nearby or remotely, reducing the danger caused by molten iron splashing. In critical situations, the remote control operation can be carried out remotely, avoiding the equipment loss caused by the inability of personnel to get close; and the emergency system does not change the original manual operating system. It can be connected to the hydraulic system through a simple passage structure and oil pipe structure. It can be improved on the original equipment with low improvement cost and strong adaptability. The electric control reversing valve has a fast response and is controlled by electrical signals, which can handle problems more effectively in emergency situations.

[0026] like Figure 1-2 As shown, the electrically controlled reversing valve group 4 controls the hydraulic circuit through the electrical signal output by the remote control receiver 5 to provide power for the tilting and retraction of the intermediate frequency furnace. The electrically controlled reversing valve group 4 is provided with a P port 92, a T port 93 and an A port 91.

[0027] like Figure 1-2As shown, an oil return pipe 102 and an oil supply pipe 101 are arranged between the hydraulic station 1 and the manual reversing valve group 2. The passage structure includes a first hydraulic tee 71, a second hydraulic tee 72 and a third hydraulic tee 73. The first hydraulic tee 71 is arranged on the oil supply pipe 101, and the second hydraulic tee 72 is arranged on the oil return pipe 102. An oil pipeline 103 is arranged between the manual reversing valve group 2 and the tilting cylinder 3, and the third hydraulic is arranged on the oil pipeline 103. The oil pipe structure includes a first high-pressure oil pipe 81, a second high-pressure oil pipe 82 and a third high-pressure oil pipe 83. One end of the first high-pressure oil pipe 81 is connected to the first hydraulic tee 71, and the other end is connected to the P port 92; one end of the second high-pressure oil pipe 82 is connected to the second hydraulic tee 72, and the other end is connected to the T port 93; one end of the third high-pressure oil pipe 83 is connected to the third hydraulic tee 73, and the other end is connected to the A port 91. The passage structure separates the pipelines in the hydraulic system, so that the manual reversing valve group 2 and the electronically controlled reversing valve group 4 are connected in parallel, which does not affect the tipping of the intermediate frequency furnace. Workers can control the electronically controlled reversing valve remotely or on-site. During remote control, there is no need to approach the intermediate frequency furnace, which avoids splashing of molten iron during the tipping of the intermediate frequency furnace. The tilting movement of the intermediate frequency furnace can also be remotely controlled to prevent the continuous leakage of molten iron and the inability to reset the intermediate frequency furnace. The tilting cylinder 3 is used to tilt the intermediate frequency furnace. The tilting cylinder 3 is a single-port cylinder, and two cylinders are used in parallel. The third hydraulic tee 73 is connected to the two tilting cylinders 3 respectively, which increases the safety of the intermediate frequency furnace when tilting.

[0028] like Figure 1-2 As shown, the electrically controlled reversing valve assembly 4, remote control receiver 5, remote control transmitter 6, pathway structure, and oil pipe structure form a device capable of independently remotely controlling the tilting movement of the intermediate frequency furnace. This system does not affect the original manual operating system and can remotely control the tilting movement of the intermediate frequency furnace. This system can be used for daily use or in emergency situations. The remote control transmitter 6 and remote control receiver 5 form a pair to transmit remote control commands. The remote control receiver 5 can send electrical signals to directly control the electrically controlled reversing valve assembly 4, driving the tilting cylinder 3 and controlling the tilting movement of the intermediate frequency furnace. The first, second, and third hydraulic tees 71, 72, and 73, as well as the first, second, and third high-pressure oil pipes 81, 82, and 83, connect the emergency system in parallel with the original manual reversing valve assembly 2, without changing the function of the manual reversing valve assembly 2. The remote control receiver 5 uses a high-current relay output, which can be directly connected to the solenoid valve of the electrically controlled reversing valve assembly 4 for control.

[0029] The above are only preferred embodiments of the present invention and are not intended to be used to define the present invention. For those skilled in the art, the present invention may be subject to various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An emergency system for tilting of an aluminum electrolytic anode assembly medium frequency furnace, comprising a hydraulic system, wherein the hydraulic system comprises a hydraulic station, a manual reversing valve group and a tilting cylinder, the three being connected in series via a pipeline, characterized in that: The emergency system includes an electronically controlled reversing valve group. The hydraulic station, the electronically controlled reversing valve group and the tilting cylinder are connected in series through a hydraulic pipeline. The electronically controlled reversing valve group is provided with a remote control receiver for providing action instructions to the electronically controlled reversing valve group. The remote control receiver and the electronically controlled reversing valve group are electrically connected; the remote control receiver is equipped with a remote control transmitter, which is used to transmit action instructions to provide action instructions to the emergency system.

2. The aluminum electrolysis anode assembly medium frequency furnace tipping emergency system according to claim 1, characterized in that: The emergency system includes a passage structure and an oil pipe structure. An oil return pipe and an oil supply pipe are arranged between the hydraulic station and the manual reversing valve group. The passage structure includes a first hydraulic tee and a second hydraulic tee. The first hydraulic tee is arranged on the oil supply pipe, and the second hydraulic tee is arranged on the oil return pipe.

3. The aluminum electrolysis anode assembly medium frequency furnace tipping emergency system according to claim 2, characterized in that: An oil pipeline is provided between the manual reversing valve group and the tilting oil cylinder. The passage structure further includes a third hydraulic tee, and the third hydraulic pressure is provided on the oil pipeline.

4. The aluminum electrolysis anode assembly medium frequency furnace tipping emergency system according to claim 3 is characterized by: The electrically controlled reversing valve group is provided with a P port, a T port and an A port. The oil pipe structure is connected to the passage structure, and the oil pipe structure is connected to the P port, the T port and the A port respectively.

5. The aluminum electrolysis anode assembly medium frequency furnace tipping emergency system according to claim 4, characterized in that: The oil pipe structure includes a first high-pressure oil pipe, a second high-pressure oil pipe and a third high-pressure oil pipe. One end of the first high-pressure oil pipe is connected to the first hydraulic tee, and the other end is connected to the P port; one end of the second high-pressure oil pipe is connected to the second hydraulic tee, and the other end is connected to the T port; one end of the third high-pressure oil pipe is connected to the third hydraulic tee, and the other end is connected to the A port.

6. The aluminum electrolysis anode assembly medium frequency furnace tipping emergency system according to claim 3, characterized in that: The tilting oil cylinder is a single-port oil cylinder, and the two cylinders are used in parallel. The third hydraulic tee is connected to the two tilting oil cylinders respectively.

7. The aluminum electrolysis anode assembly medium frequency furnace tipping emergency system according to claim 5, characterized in that: The electrically controlled reversing valve group, the remote controller receiver, the remote controller transmitter, the passage structure and the oil pipe structure constitute a system capable of independently controlling the tilting action of the intermediate frequency furnace.

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