CN-121972643-A - Continuous casting emergency oil cylinder pushing device and working method thereof

Abstract

The invention relates to the technical field of continuous casting equipment, in particular to a continuous casting emergency oil cylinder pushing device and a working method thereof. The device is applied to an oil cylinder and comprises an excitation device and an operation plate, wherein the excitation device is arranged at the tail part of the oil cylinder and filled with explosive, the explosive is detonated through a detonation signal, the generated impact force is pressurized to push a blind plate to a water gap, the operation plate is connected with the excitation device, and the operation plate is used for transmitting a preparation signal for detonating the explosive and the detonation signal. According to the invention, through the excitation device and the operation plate, the explosive in the gunpowder filling area is detonated, and the shock wave is pressurized and pushed to the blind plate to the water gap, so that the molten steel flow is cut off.

Inventors

• Wei Chongyi
• JIN LONG
• Pan tongling
• CUI GUOLIANG
• SONG YU
• MA HUI
• ZHANG YUE

Assignees

• 鞍钢股份有限公司

Dates

Publication Date

20260505

Application Date

20260209

Claims (6)

1. 1. The continuous casting emergency oil cylinder pushing device is applied to an oil cylinder and is characterized by comprising an excitation device and an operation plate; The excitation device is arranged at the tail part of the oil cylinder, is filled with explosive, detonates the explosive through a detonation signal, pressurizes the generated impact force, and utilizes the pressurized impact force to push the blind plate to the water gap; The excitation device comprises a propeller (6), a pressurizing structure (7) and a gunpowder filling area (8), wherein the propeller (6) is arranged at the tail part of the oil cylinder and can smoothly run along the propelling direction, the pressurizing structure (7) is arranged between the propeller (6) and the gunpowder filling area (8), and the pressurizing structure (7) can pressurize shock waves generated by explosive explosion; The operation board is connected with the excitation device and is used for transmitting a preparation signal for detonating the explosive and a detonation signal.
2. 2. The continuous casting emergency cylinder pushing device according to claim 1, wherein a powder trigger (9) is arranged on the powder filling area (8), and the powder trigger (9) is connected with an operation plate and is used for receiving a preparation signal and a detonation signal for detonating the explosive, and detonating the explosive in the powder filling area (8) when receiving the detonation signal.
3. 3. The continuous casting emergency cylinder pushing apparatus according to claim 1, wherein a first starting portion (10) and a second starting portion (11) are provided on the operation panel, the first starting portion (10) being responsive to a first operation for triggering a preliminary operation for confirming detonation of the explosive, the preliminary operation for confirming the detonation of the explosive, the second starting portion (11) being responsive to a second operation for triggering a detonation signal for controlling the explosive actuator (9) to detonate the explosive of the explosive charge area (8).
4. 4. The continuous casting emergency cylinder pushing apparatus according to claim 2, wherein the powder actuator (9) is connected to the operation panel through a signal line.
5. 5. A continuous casting emergency cylinder pushing apparatus according to claim 3, wherein the first actuating portion (10) has a safety function, and when the first actuating portion (10) is not pressed, erroneous touching of the second actuating portion (11) does not trigger a detonation signal.
6. 6. A continuous casting emergency cylinder pushing working method realized based on the continuous casting emergency cylinder pushing device according to any one of claims 1 to 5, which is characterized by comprising the following steps: When the continuous casting emergency oil cylinder pushing device is required to be started to push the blind plate to the water gap to cut off the molten steel flow, a first starting part (10) on the operation plate is pressed, so that the oil inlet pipe sealer (5) moves to a working position, and a preparation signal is transmitted to the gunpowder exciter (9); After the completion of the preliminary work is confirmed, the second starting part (11) is pressed, a detonation signal is transmitted to the gunpowder exciter (9), the gunpowder in the gunpowder filling area (8) is detonated by the gunpowder exciter (9), the shock wave generated by detonation is pressurized by the pressurizing structure (7), and the pressurized shock wave is used for pushing the propeller (6) to push the blind plate to the water gap, so that the molten steel flow is cut off.

Description

Continuous casting emergency oil cylinder pushing device and working method thereof Technical Field The invention relates to the technical field of continuous casting equipment, in particular to a continuous casting emergency oil cylinder pushing device and a working method thereof. Background In continuous casting production, a water gap blind plate is a critical safety component, and has the main effects of cutting off the molten steel flow flowing into a crystallizer from a tundish, theoretically, the blind plate must be absolutely effective, the uncontrolled molten steel can be leaked onto a continuous casting platform due to the failure of the blind plate, a continuous casting machine is burnt out to cause steel leakage accidents, and more dangerous, once the molten steel is contacted with cooling water of equipment, severe steam explosion can be caused, the damage force is enough to destroy the whole continuous casting machine, the life safety of field personnel is seriously endangered, and irrecoverable losses are generated. In actual production, many situations can occur to cause that the blind plate cannot normally function, such as the crystallizer molten steel splashes and welds the blind plate slideway, the blind plate cannot be pushed due to insufficient oil pressure of the oil cylinder, and the like, in the prior art, an energy accumulator is mostly added on an oil cylinder pipeline, so that an oil pressure stabilizing method is ensured, but the energy accumulator has an air leakage risk, and an energy accumulator air leakage detection method is immature. In the prior art, after the blind plate fails, the operation of closing the dead plug rod is adopted, the lower nozzle of the tundish is blocked by the dead plug rod, and the molten steel can be cut off. However, when producing steel grades with severe erosion to the stopper rod, such as silicon steel, the silicon content of the silicon steel is varied from 0.5% to 6.5%, the main material of the stopper rod is alumina, and the silicon with strong reducibility in the silicon steel reacts with the alumina in the stopper rod, so that the stopper rod is reduced due to erosion, and even the possibility of rod breakage exists. At this time, if the blind plate fails, the stopper rod cannot block the water outlet, and steel leakage accidents can be caused. In order to reduce the occurrence of the problems, it is necessary to provide a continuous casting emergency oil cylinder pushing device which can quickly push the blind plate under special conditions to cut off the molten steel flow. Disclosure of Invention According to the technical problems, the pushing device of the continuous casting emergency oil cylinder and the working method thereof are provided. The invention mainly utilizes the excitation device and the operation plate, and can rapidly push the blind plate to cut off the steel water flow when the blind plate fails and cannot move to the water gap due to special continuous casting conditions, thereby ensuring the safety of equipment and personnel. The invention adopts the following technical means: The continuous casting emergency oil cylinder pushing device is applied to an oil cylinder and comprises an excitation device and an operation plate, wherein the excitation device is arranged at the tail part of the oil cylinder and filled with explosive, the explosive is detonated through a detonating signal, the generated impact force is pressurized, and the blind plate is pushed to a water gap by utilizing the pressurized impact force. The excitation device comprises a propeller, a pressurizing structure and a gunpowder filling area, wherein the propeller is arranged at the tail part of the oil cylinder and can smoothly run along the propelling direction, the pressurizing structure is arranged between the propeller and the gunpowder filling area and can pressurize shock waves generated by explosive explosion, and the gunpowder filling area is used for filling the explosive. The operation board is connected with the excitation device and is used for transmitting a preparation signal for detonating the explosive and a detonation signal. Further, the gunpowder filling area is provided with a gunpowder exciter, and the gunpowder exciter is connected with the operation plate and is used for receiving a preparation signal and a detonation signal for detonating the explosive and detonating the explosive in the gunpowder filling area when receiving the detonation signal. Further, a first starting part and a second starting part are arranged on the operation board, the first starting part responds to a first operation, the first operation is used for triggering a preparation signal, the preparation signal is used for confirming the front operation of explosive detonation, the second starting part responds to a second operation, the second operation is used for triggering a detonation signal, and the detonation signal is used for controlling the explo