An emergency operation process of a continuous casting rotary table accident hydraulic rotation control system and the system

Abstract

The present application belongs to the field of steelmaking continuous casting, and relates to an emergency operation process of a hydraulic rotary control system for a continuous casting rotary table, comprising an oil inlet pipe, an oil return pipe and an oil drain pipe, wherein the oil inlet pipe is connected with an emergency rotary motor and a locking cylinder through two paths respectively, the emergency rotary motor is communicated with the oil drain pipe, a first pressure gauge, a first hand-operated reversing valve, a first reversing valve handle, a safety pin and a third pressure gauge are arranged along the oil inlet pipe inlet on the oil circuit of the locking cylinder respectively, and a second pressure gauge, a second hand-operated reversing valve, a second reversing valve handle and a safety pin are arranged along the oil inlet pipe inlet on the oil circuit of the emergency rotary motor respectively. The present application standardizes a reasonable emergency disposal method for a continuous casting machine rotary table under a fault state, reduces the occurrence of accidents and ensures the stable and smooth production.

Description

Technical Field

[0001] This invention belongs to the field of steelmaking continuous casting and relates to a hydraulic rotation control system for continuous casting rotary table accidents and its emergency operation procedure. Background Technology

[0002] The turret of a continuous casting machine is a type of rotary equipment used in casting. During the casting process, molten steel requires equipment such as ladles, turrets, tundishes, and tundish cars. The turret is a very critical piece of equipment. If it malfunctions, such as due to power failure, and is not handled properly, it can cause major production, equipment, and safety accidents. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide a hydraulic rotation control system for continuous casting turret accidents and its emergency operation procedure, to standardize reasonable emergency handling methods for continuous casting turret malfunctions, reduce the occurrence of accidents, and ensure stable and smooth production.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an emergency hydraulic rotation control system for a continuous casting turret, comprising an oil inlet pipe, an oil return pipe, and an oil drain pipe. The oil inlet pipe is connected to an emergency rotation motor and a locking cylinder via two separate paths, and the emergency rotation motor is connected to the oil drain pipe. A first pressure gauge, a first manual directional valve, a first directional valve handle, a safety pin, and a third pressure gauge are respectively installed along the oil inlet of the locking cylinder oil line. A second pressure gauge, a second manual directional valve, a second directional valve handle, and a safety pin are respectively installed along the oil inlet of the emergency rotation motor oil line.

[0005] Optionally, a ball valve may be installed on the oil inlet line.

[0006] An emergency operation procedure for a hydraulic rotation control system for a continuous casting turret in case of an accident is provided. This procedure applies to the aforementioned hydraulic rotation control system for a continuous casting turret. During normal operation, the ladle rotation of the continuous casting machine is electrically driven. After rotating to the pouring position, a locking hydraulic cylinder extends a pin to lock its position, preventing the ladle turret from shaking during production. In the event of an electric drive failure, the locking of the ladle turret is first released, and then the hydraulic motor is used to complete its rotation. The emergency operation procedure for accident rotation includes:

[0007] 1) Open the ball valve on the oil inlet pipe and confirm that the pressure of the first pressure gauge is 100 bar and the pressure of the second pressure gauge is 200 bar;

[0008] 2) Pull out the safety pin of the first manual directional valve, push the first directional valve handle forward, and the pressure on the third pressure gauge will increase from 0 to 100 bar. After confirming that the casting position positioning pin has been pulled out, push the first directional valve handle back to the middle position of the valve so that the locking cylinder is unlocked and stops.

[0009] 3) Pull out the safety pin of the second manual directional valve, push the second directional valve handle forward or backward to complete the clockwise or counterclockwise rotation of the ladle rotatable table. After confirming that the ladle has returned to the required position, push the second directional valve handle back to the middle position of the valve to stop its hydraulic drive.

[0010] 4) Close the ball valve of the oil inlet pipe, insert the safety pins of the two manual directional valves, end the hydraulic emergency rotation operation, and confirm that the ladle rotatable table signal is normal.

[0011] The beneficial effects of this invention are as follows: This invention provides a hydraulic rotation control system for continuous casting turret accidents and its emergency operation procedure, which standardizes reasonable emergency handling methods for continuous casting turrets in the event of a malfunction, reduces the occurrence of accidents, and ensures stable and smooth production.

[0012] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0013] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0014] Figure 1 This is a schematic diagram of the control system of the present invention.

[0015] Attached reference numerals: 1. Oil inlet pipe; 2. Oil return pipe; 3. Oil drain pipe; 4. Ball valve; 5. First pressure gauge; 6. First manual directional valve; 7. First directional valve handle; 8. Second manual directional valve; 9. Second pressure gauge; 10. Third pressure gauge; 11. Locking cylinder; 12. Emergency rotary motor; 13. Safety pin; 14. Detailed Implementation

[0016] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0017] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0018] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0019] Please see Figure 1 This is an emergency hydraulic rotation control system for a continuous casting turret, comprising an oil inlet pipe 1, an oil return pipe 2, and an oil drain pipe 3. The oil inlet pipe 1 is connected to an emergency turret motor 13 and a locking cylinder 12 via two separate paths. The emergency turret motor 13 is connected to the oil drain pipe 3. Along the oil inlet of the oil inlet pipe 1, the locking cylinder 12 is equipped with a first pressure gauge 5, a first manual directional valve 6, a first directional valve handle 7, a safety pin 14, and a third pressure gauge 11. Along the oil inlet of the oil inlet pipe 1, the emergency turret motor 13 is equipped with a second pressure gauge 10, a second manual directional valve 8, a second directional valve handle 9, and a safety pin 14. A ball valve 4 is installed on the oil inlet pipe 1.

[0020] Description of the accident rotation system: During normal operation, the ladle rotation of the continuous casting machine is completed by electric drive. After rotating to the pouring position, the locking hydraulic cylinder extends a pin to lock its position to prevent the ladle turret from shaking during production. When the electric drive fails, the lock of the ladle turret is first released, and then the hydraulic motor is used to complete its rotation function.

[0021] Emergency turnaround procedure for accidents:

[0022] 1) Open the ball valve 4 on the oil inlet pipe 1 and confirm that the pressure of the first pressure gauge 5 is 100 bar and the pressure of the second pressure gauge 10 is 200 bar.

[0023] 2) Pull out the safety pin 14 of the first manual directional valve 6, push the first directional valve handle 7 forward, and the pressure of the third pressure gauge 11 will increase from 0 to 100 bar. After confirming that the casting position positioning pin has been pulled out, push the first directional valve handle 7 back to the middle position of the valve so that the locking cylinder 12 is unlocked and stopped.

[0024] 3) Pull out the safety pin 14 of the second manual directional valve 8, push the second directional valve handle 9 forward or backward to complete the clockwise or counterclockwise rotation of the ladle turntable. After confirming that the ladle has been rotated to the required position, push the second directional valve handle 9 back to the middle position of the valve to stop its hydraulic drive.

[0025] 4) Close the ball valve 4 of the oil inlet pipe 1, insert the safety pins 14 of the two manual directional valves, the hydraulic emergency rotation operation ends and the ladle rotatable table signal is confirmed to be normal.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hydraulic rotation control system for accidents on a continuous casting turret, characterized in that, It includes an oil inlet pipe, an oil return pipe, and an oil drain pipe. The oil inlet pipe is connected to an emergency rotary motor and a locking cylinder through two separate paths. The emergency rotary motor is connected to the oil drain pipe. The oil line of the locking cylinder is equipped with a first pressure gauge, a first manual directional valve, a first directional valve handle, a safety pin, and a third pressure gauge along the oil inlet pipe; the oil line of the emergency rotary motor is equipped with a second pressure gauge, a second manual directional valve, a second directional valve handle, and a safety pin along the oil inlet pipe. A ball valve is installed on the oil inlet pipe; When using the aforementioned continuous casting turret emergency hydraulic rotation control system for emergency operation, the ladle rotation of the continuous casting machine is normally driven by an electric motor. After rotating to the pouring position, a locking hydraulic cylinder extends a pin to lock its position, preventing the ladle turret from shaking during production. When the electric drive fails, the locking of the ladle turret is first released, and then the hydraulic motor is used to complete its rotation. The emergency rotation operation procedure includes: 1) Open the ball valve on the oil inlet pipe and confirm that the pressure of the first pressure gauge is 100 bar and the pressure of the second pressure gauge is 200 bar; 2) Pull out the safety pin of the first manual directional valve, push the first directional valve handle forward, and the pressure on the third pressure gauge will increase from 0 to 100 bar. After confirming that the casting position positioning pin has been pulled out, push the first directional valve handle back to the middle position of the valve so that the locking cylinder is unlocked and stops. 3) Pull out the safety pin of the second manual directional valve, push the second directional valve handle forward or backward to complete the clockwise or counterclockwise rotation of the ladle rotatable table. After confirming that the ladle has returned to the required position, push the second directional valve handle back to the middle position of the valve to stop its hydraulic drive. 4) Close the ball valve of the oil inlet pipe, insert the safety pins of the two manual directional valves, end the hydraulic emergency rotation operation, and confirm that the ladle slewing table signal is normal.

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