Safety interlocking method for slag treatment roller device

Abstract

The invention belongs to the field of steelmaking, and relates to a safety interlocking method for a slag treatment roller device, which ensures the safety of the slag treatment process through a series of interlocking control. The interlocking specifically comprises roller sudden stop, tipping sudden stop and hydraulic sudden stop button function interlocking, operation authority interlocking, roller and cooling water interlocking, tipping and locking, clamping interlocking, translation oil cylinder synchronization interlocking and the like. Through the interlocking measures, the risk of the slag treatment process is effectively reduced, and safety accidents are controlled. After the method is put into production, no safety risk accident occurs, and the production efficiency and the safety are remarkably improved. The slag treatment roller device has the advantages of being simple in structure, convenient to operate, safe, reliable and the like, and is suitable for various industrial production such as steelmaking.

Description

Technical Field

[0001] The invention belongs to the field of steelmaking and relates to a safety interlocking method for a slag processing drum device. Background Art

[0002] Slag treatment is a crucial step in industrial production, such as steelmaking. If not properly handled, the slag produced during the steelmaking process can not only pollute the environment but also damage production equipment and even cause safety accidents. Therefore, the safety and reliability of slag treatment processes are crucial to the stable operation of the entire production process.

[0003] To ensure the safe operation of slag treatment processes, the industry has widely adopted various safety measures. Among them, safety interlocks, as a key technical measure, are widely used in various production equipment. A safety interlock is an automated device used for safety purposes. It uses mechanical or electrical mechanisms to establish a mutually restrictive relationship between two or more actions. If an action or condition is not met, the associated action or equipment will be locked or stopped, thereby preventing accidents.

[0004] The application of safety interlocks is particularly critical in slag handling drum units. The drum unit is a core piece of equipment in the slag handling process, responsible for transporting and processing slag generated during the steelmaking process. Because the drum unit must withstand harsh conditions such as high temperatures and high pressures during operation, its safety and reliability are paramount. Failure or abnormality in the drum unit can not only disrupt the slag handling process but can also cause serious damage to production equipment and personnel.

[0005] Traditional slag processing drum systems have certain safety deficiencies. For example, the lack of an effective interlocking mechanism often prevents timely shutdown or implementation of other safety measures when the drum system malfunctions or experiences an abnormality, increasing the potential for accidents. Furthermore, traditional slag processing drum systems also present certain risks during operation. Operators must frequently access the drum system for observation and operation, and improper or negligent operation can lead to safety accidents.

[0006] Therefore, to improve the safety and reliability of the slag processing drum unit, a more advanced safety interlock method is required. By introducing advanced safety interlock technology, the drum unit can be effectively monitored and controlled. When a malfunction or abnormality occurs in the drum unit, the interlock system can quickly respond and take appropriate safety measures, such as shutting down the unit and issuing an alarm, thereby preventing accidents. Furthermore, by optimizing operating procedures and adding safety precautions, the operator's work risks can be reduced, further improving the safety and reliability of the slag processing drum unit.

[0007] In summary, the background technology of a safety interlock method for a slag processing drum device relates to the safety requirements of industrial production fields such as steelmaking and the safety deficiencies of traditional slag processing drum devices. To improve the safety and reliability of slag processing drum devices, more advanced safety interlock methods and technical means are needed. Summary of the Invention

[0008] In view of this, an object of the present invention is to provide a safety interlocking method for a slag treatment drum device, which can reduce the risk of converter slag treatment process and control safety accidents through the implementation of the safety interlocking method.

[0009] To achieve the above object, the present invention provides the following technical solution: a safety interlocking method for a slag treatment drum device, applicable to a slag treatment process, wherein the slag treatment process includes converter slag tapping, hanging pot, drum, and slag discharge, and comprises the following steps:

[0010] (1) Use the roller emergency stop button, tilting emergency stop button, and hydraulic emergency stop button to trigger the corresponding equipment to stop in an emergency;

[0011] (2) Set up operation authority interlocks for the tipping system, scraper, drum, rotary hopper and conveying system;

[0012] (3) Establish interlock between drum operation status and cooling water opening and closing;

[0013] (4) Setting the interlock between the tilting angle and the locking pin;

[0014] (5) Setting the interlock between the tilting angle and the clamping clamp;

[0015] (6) Execute the synchronous interlocking of the translation cylinder.

[0016] Optionally, step (1) includes: when the emergency stop button of the roller is triggered, the roller, the rotating hopper, and the conveying mechanism are synchronously stopped;

[0017] When the tilting emergency stop button is triggered, the tilting system stops immediately; when the hydraulic emergency stop button is triggered, the power of the hydraulic system is cut off.

[0018] Optionally, the operation authority interlock of step (2) is: when the operation box selection right is in the middle position, the equipment cannot be started either on-site or remotely; when the selection right is switched to the on-site position, the remote operation function is invalid; when the selection right is switched to the remote position, the on-site operation function is invalid.

[0019] Optionally, the operation authority interlock is specifically implemented in:

[0020] a) Tilt system: All operation instructions are prohibited when the middle position is selected;

[0021] b) Mud scraper: disable remote control when selecting the on-site location;

[0022] c) Roller: Disable local start when remote position is selected.

[0023] Optionally, the cooling water interlock of step (3) is: when the drum is not running, the upper and lower cooling water are automatically shut off; when the cooling water is not turned on, the drum is prohibited from starting.

[0024] Optionally, the tilting and locking interlocking of step (4) is as follows: tilting operation is prohibited when the locking pin is in the locking position; and locking pin action is prohibited when the tilting angle exceeds ±1 degree.

[0025] Optionally, the tilting and clamping interlock in step (5) is as follows: tilting operation is prohibited when the clamp is in the open position; and opening of the clamp is prohibited when the tilting angle exceeds 5 degrees.

[0026] Optionally, the translation cylinder interlock in step (6) is as follows: real-time monitoring of the displacement difference between the two translation cylinders; and terminating the translation action when the difference exceeds 100 mm.

[0027] Optionally, the operation authority interlock further includes:

[0028] d) Rotating hopper: All operation instructions are prohibited when the middle position is selected;

[0029] e) Conveyor system: Disable local control when remote location is selected.

[0030] The beneficial effects of the present invention are:

[0031] First, implementing a safety interlock system significantly reduces risks during slag handling. Slag handling is a critical and dangerous process in industrial production, such as steelmaking. Traditional slag handling methods often lack effective safety measures, leading to frequent accidents. The safety interlock system, through interlocking control of related equipment such as the drum unit, tilting system, and slag scraper, ensures timely shutdown of equipment in the event of abnormal or dangerous conditions, effectively preventing accidents.

[0032] Secondly, the application of safety interlocking methods improves the controllability and stability of the production process. In traditional slag processing, the lack of effective interlocking mechanisms between equipment often leads to accidents caused by equipment misoperation or failure. However, the safety interlocking method establishes a mutual constraint relationship between equipment, achieving precise control over equipment operation. This not only improves equipment operating efficiency but also ensures the stability and controllability of the production process, providing a strong guarantee for production safety.

[0033] Furthermore, the application of safety interlocks can help improve a company's safety management capabilities. By introducing advanced safety interlock technology, companies can establish a comprehensive safety management system. This system encompasses not only equipment safety interlock controls but also personnel safety training, the development and implementation of operating procedures, and other aspects. Through comprehensive safety management, companies can further enhance their safety performance and reduce the probability of accidents and losses.

[0034] Finally, the practical application of the slag handling drum unit, which utilizes the safety interlock method, has resulted in zero safety incidents since its commissioning. This fully demonstrates the effectiveness and reliability of the safety interlock method. Furthermore, it has brought significant economic and social benefits to the company, enhancing its competitiveness and public image.

[0035] In summary, the application of a safety interlock method for slag processing drums has significant benefits, including reducing risks, improving controllability and stability, enhancing safety management, and demonstrating excellent performance in practical applications. These benefits not only provide a strong guarantee for production safety but also have a positive impact on the company's development.

[0036] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. DETAILED DESCRIPTION

[0037] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.

[0038] A safety interlocking method for a slag treatment drum device is applicable to a slag treatment process, wherein the slag treatment process includes converter slag tapping, hanging pot, drum, and slag discharge, and comprises the following steps:

[0039] (1) Use the roller emergency stop button, tilting emergency stop button, and hydraulic emergency stop button to trigger the corresponding equipment to stop in an emergency;

[0040] (2) Set up operation authority interlocks for the tipping system, scraper, drum, rotary hopper and conveying system;

[0041] (3) Establish interlock between drum operation status and cooling water opening and closing;

[0042] (4) Setting the interlock between the tilting angle and the locking pin;

[0043] (5) Setting the interlock between the tilting angle and the clamping clamp;

[0044] (6) Execute the synchronous interlocking of the translation cylinder.

[0045] Step (1) includes: when the roller emergency stop button is triggered, the roller, the rotating hopper, and the conveying mechanism are stopped synchronously; when the tipping emergency stop button is triggered, the tipping system is stopped immediately; when the hydraulic emergency stop button is triggered, the power of the hydraulic system is cut off.

[0046] The operation authority interlock of step (2) is as follows: when the operation box selection right is in the middle position, the equipment cannot be started on-site or remotely; when the selection right is switched to the on-site position, the remote operation function is invalid; when the selection right is switched to the remote position, the on-site operation function is invalid.

[0047] The operation authority interlock is specifically implemented in: a) Tipping system: all operation instructions are prohibited when the middle position is selected; b) Slag scraper: remote control is disabled when the on-site position is selected; c) Drum: on-site start is disabled when the remote position is selected.

[0048] The cooling water interlock of step (3) is as follows: when the drum is not running, the upper and lower cooling water are automatically closed; when the cooling water is not turned on, the drum is prohibited from starting.

[0049] The tilting and locking interlocking of step (4) is as follows: tilting operation is prohibited when the locking pin is in the locking position; locking pin action is prohibited when the tilting angle exceeds ±1 degree.

[0050] The tilting and clamping interlocking of step (5) is as follows: tilting operation is prohibited when the clamp is in the open position; the clamp is prohibited from opening when the tilting angle exceeds 5 degrees.

[0051] The translation cylinder interlocking of step (6) is as follows: real-time monitoring of the displacement difference between the two translation cylinders; when the difference exceeds 100 mm, the translation action is terminated.

[0052] The operation authority interlock also includes: d) Rotating hopper: all operation instructions are prohibited when the middle position is selected; e) Conveying system: on-site control is disabled when the remote position is selected.

[0053] The following are two specific embodiments of a safety interlocking method for a slag processing drum device:

[0054] Example 1

[0055] A large steel company's steelmaking workshop utilizes a safety interlock system for its slag handling drums. This workshop primarily performs converter steelmaking operations, generating large quantities of slag requiring daily disposal. To ensure the safety of the slag handling process, the company implemented a safety interlock system.

[0056] First, an emergency stop button is installed on the roller mechanism. If the operator detects any anomaly, such as overheating, stalling, or unusual noise, they can immediately press the button. This immediately halts the roller, rotating hopper, and conveying mechanism, preventing accidents. Furthermore, emergency stop buttons are installed on the tilting system and hydraulic system, respectively, to ensure rapid shutdown in emergencies.

[0057] Secondly, to control access to key equipment and prevent misoperation, this method incorporates an operational permission interlock. The control boxes for the tilting system, scraper, drum, rotary hopper, and conveyor system all feature a selection switch. Only when the selection switch is in the correct position will the corresponding location be activated. This interlock mechanism effectively prevents unauthorized equipment activation and improves operational safety.

[0058] Furthermore, this method establishes an interlocking control system between the drum and the cooling water. When the drum is not running, the cooling water system is automatically shut off to save energy. Furthermore, when the cooling water is not turned on, the drum cannot start, ensuring that the drum operates while being adequately cooled.

[0059] Example 2

[0060] Another steel company also employs a safety interlock system for its slag handling drums in its steelmaking workshop. This workshop primarily processes large quantities of blast furnace slag daily. To ensure the safety and efficiency of the slag handling process, the company introduced a more advanced safety interlock system.

[0061] In addition to the roller emergency stop button, operation authority interlock, and interlock control of the roller and cooling water mentioned in Example 1, the company also set up the interlocking relationship between the tilting angle and the locking pin, the clamping clamp, and the synchronization interlock of the translation cylinder.

[0062] In the tilting system's control, tilting is prohibited when the locking pin is in the locked position. This prevents the locking pin from loosening or being damaged due to excessive force during the tilting process. Furthermore, the locking pin is prohibited from operating if the tilting angle exceeds a set range (e.g., ±1 degree). Similarly, the clamping jaws cannot be opened if the tilting angle exceeds 5 degrees, ensuring a safe tilting process.

[0063] Furthermore, when controlling the movement of the translation cylinders, the company introduced displacement sensors to monitor the displacement difference between the two cylinders in real time. If the difference exceeds a set range (e.g., 100mm), the system automatically terminates the translation. This interlocking mechanism effectively prevents equipment damage or safety accidents caused by cylinder asynchrony.

[0064] The description of the two specific examples above demonstrates that the safety interlock method for the slag treatment drum device has achieved significant results in steelmaking plants at various companies. It not only improves the safety and controllability of the slag treatment process but also brings significant economic and social benefits to the companies. Furthermore, these two examples provide valuable references and lessons for safety interlock control in other similar industrial scenarios.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions, which should all be included in the scope of the claims of the present invention.

Claims

1. A safety interlocking method for a slag treatment drum device, suitable for a slag treatment process, which includes a converter slag tapping, a hanging pot, a drum, and a slag discharge, characterized in that: The following steps are involved: (1) Use the roller emergency stop button, tilting emergency stop button, and hydraulic emergency stop button to trigger the corresponding equipment to stop in an emergency; (2) Set up operation authority interlocks for the tipping system, scraper, drum, rotary hopper and conveying system; (3) Establish interlock between drum operation status and cooling water opening and closing; (4) Setting the interlock between the tilting angle and the locking pin; (5) Setting the interlock between the tilting angle and the clamping clamp; (6) Execute the synchronous interlocking of the translation cylinder.

2. A safety interlocking method for a slag processing drum device according to claim 1, characterized in that: Step (1) includes: When the drum emergency stop button is triggered, the drum, rotating hopper and conveying mechanism will stop synchronously; When the tipping emergency stop button is triggered, the tipping system will be stopped immediately; When the hydraulic emergency stop button is triggered, the power to the hydraulic system is cut off.

3. A safety interlocking method for a slag processing drum device according to claim 1, characterized in that: The operation authority interlock of step (2) is: When the operation box selection right is in the middle position, the equipment cannot be started on-site or remotely; When the option is switched to the on-site position, the remote operation function becomes invalid; When the option is switched to remote position, the on-site operation function becomes invalid.

4. A safety interlocking method for a slag processing drum device according to claim 3, characterized in that: The operation authority interlock is specifically implemented in: a) Tilt system: All operation instructions are prohibited when the middle position is selected; b) Mud scraper: disable remote control when selecting the on-site location; c) Roller: Disable local start when remote position is selected.

5. A safety interlocking method for a slag processing drum device according to claim 1, characterized in that: The cooling water interlock in step (3) is: When the drum is not running, the upper and lower cooling water are automatically shut off; The drum is prohibited from starting when the cooling water is not turned on.

6. A safety interlocking method for a slag processing drum device according to claim 1, characterized in that: The tilting and locking interlocking of step (4) is: Tipping operation is prohibited when the locking pin is in the locked position; The locking pin is prohibited from operating when the tilting angle exceeds ±1 degree.

7. A safety interlocking method for a slag processing drum device according to claim 1, characterized in that: The tilting and clamping interlocking of step (5) is: Tilt operation is prohibited when the clamp is in the open position; Do not open the clamp when the tilting angle exceeds 5 degrees.

8. The safety interlocking method for a slag processing drum device according to claim 1, characterized in that: The translation cylinder interlock in step (6) is: Real-time monitoring of the displacement difference between the two translation cylinders; When the difference exceeds 100 mm, the translation action is terminated.

9. A safety interlocking method for a slag processing drum device according to claim 3, characterized in that: The operation authority interlock further includes: d) Rotating hopper: All operation instructions are prohibited when the middle position is selected; e) Conveyor system: Disable local control when remote location is selected.